Added all required dependencies

vendor/github.com/go-macaron/binding/LICENSE

@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
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vendor/github.com/go-macaron/binding/README.md

@@ -0,0 +1,20 @@
+# binding [![Build Status](https://travis-ci.org/go-macaron/binding.svg?branch=master)](https://travis-ci.org/go-macaron/binding) [![](http://gocover.io/_badge/github.com/go-macaron/binding)](http://gocover.io/github.com/go-macaron/binding)
+
+Middleware binding provides request data binding and validation for [Macaron](https://github.com/go-macaron/macaron).
+
+### Installation
+
+	go get github.com/go-macaron/binding
+	
+## Getting Help
+
+- [API Reference](https://gowalker.org/github.com/go-macaron/binding)
+- [Documentation](http://go-macaron.com/docs/middlewares/binding)
+
+## Credits
+
+This package is a modified version of [martini-contrib/binding](https://github.com/martini-contrib/binding).
+
+## License
+
+This project is under the Apache License, Version 2.0. See the [LICENSE](LICENSE) file for the full license text.

vendor/github.com/go-macaron/binding/binding.go

@@ -0,0 +1,669 @@
+// Copyright 2014 Martini Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+// Package binding is a middleware that provides request data binding and validation for Macaron.
+package binding
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/http"
+	"reflect"
+	"regexp"
+	"strconv"
+	"strings"
+	"unicode/utf8"
+
+	"github.com/Unknwon/com"
+	"gopkg.in/macaron.v1"
+)
+
+const _VERSION = "0.3.2"
+
+func Version() string {
+	return _VERSION
+}
+
+func bind(ctx *macaron.Context, obj interface{}, ifacePtr ...interface{}) {
+	contentType := ctx.Req.Header.Get("Content-Type")
+	if ctx.Req.Method == "POST" || ctx.Req.Method == "PUT" || len(contentType) > 0 {
+		switch {
+		case strings.Contains(contentType, "form-urlencoded"):
+			ctx.Invoke(Form(obj, ifacePtr...))
+		case strings.Contains(contentType, "multipart/form-data"):
+			ctx.Invoke(MultipartForm(obj, ifacePtr...))
+		case strings.Contains(contentType, "json"):
+			ctx.Invoke(Json(obj, ifacePtr...))
+		default:
+			var errors Errors
+			if contentType == "" {
+				errors.Add([]string{}, ERR_CONTENT_TYPE, "Empty Content-Type")
+			} else {
+				errors.Add([]string{}, ERR_CONTENT_TYPE, "Unsupported Content-Type")
+			}
+			ctx.Map(errors)
+			ctx.Map(obj) // Map a fake struct so handler won't panic.
+		}
+	} else {
+		ctx.Invoke(Form(obj, ifacePtr...))
+	}
+}
+
+const (
+	_JSON_CONTENT_TYPE          = "application/json; charset=utf-8"
+	STATUS_UNPROCESSABLE_ENTITY = 422
+)
+
+// errorHandler simply counts the number of errors in the
+// context and, if more than 0, writes a response with an
+// error code and a JSON payload describing the errors.
+// The response will have a JSON content-type.
+// Middleware remaining on the stack will not even see the request
+// if, by this point, there are any errors.
+// This is a "default" handler, of sorts, and you are
+// welcome to use your own instead. The Bind middleware
+// invokes this automatically for convenience.
+func errorHandler(errs Errors, rw http.ResponseWriter) {
+	if len(errs) > 0 {
+		rw.Header().Set("Content-Type", _JSON_CONTENT_TYPE)
+		if errs.Has(ERR_DESERIALIZATION) {
+			rw.WriteHeader(http.StatusBadRequest)
+		} else if errs.Has(ERR_CONTENT_TYPE) {
+			rw.WriteHeader(http.StatusUnsupportedMediaType)
+		} else {
+			rw.WriteHeader(STATUS_UNPROCESSABLE_ENTITY)
+		}
+		errOutput, _ := json.Marshal(errs)
+		rw.Write(errOutput)
+		return
+	}
+}
+
+// Bind wraps up the functionality of the Form and Json middleware
+// according to the Content-Type and verb of the request.
+// A Content-Type is required for POST and PUT requests.
+// Bind invokes the ErrorHandler middleware to bail out if errors
+// occurred. If you want to perform your own error handling, use
+// Form or Json middleware directly. An interface pointer can
+// be added as a second argument in order to map the struct to
+// a specific interface.
+func Bind(obj interface{}, ifacePtr ...interface{}) macaron.Handler {
+	return func(ctx *macaron.Context) {
+		bind(ctx, obj, ifacePtr...)
+		if handler, ok := obj.(ErrorHandler); ok {
+			ctx.Invoke(handler.Error)
+		} else {
+			ctx.Invoke(errorHandler)
+		}
+	}
+}
+
+// BindIgnErr will do the exactly same thing as Bind but without any
+// error handling, which user has freedom to deal with them.
+// This allows user take advantages of validation.
+func BindIgnErr(obj interface{}, ifacePtr ...interface{}) macaron.Handler {
+	return func(ctx *macaron.Context) {
+		bind(ctx, obj, ifacePtr...)
+	}
+}
+
+// Form is middleware to deserialize form-urlencoded data from the request.
+// It gets data from the form-urlencoded body, if present, or from the
+// query string. It uses the http.Request.ParseForm() method
+// to perform deserialization, then reflection is used to map each field
+// into the struct with the proper type. Structs with primitive slice types
+// (bool, float, int, string) can support deserialization of repeated form
+// keys, for example: key=val1&key=val2&key=val3
+// An interface pointer can be added as a second argument in order
+// to map the struct to a specific interface.
+func Form(formStruct interface{}, ifacePtr ...interface{}) macaron.Handler {
+	return func(ctx *macaron.Context) {
+		var errors Errors
+
+		ensureNotPointer(formStruct)
+		formStruct := reflect.New(reflect.TypeOf(formStruct))
+		parseErr := ctx.Req.ParseForm()
+
+		// Format validation of the request body or the URL would add considerable overhead,
+		// and ParseForm does not complain when URL encoding is off.
+		// Because an empty request body or url can also mean absence of all needed values,
+		// it is not in all cases a bad request, so let's return 422.
+		if parseErr != nil {
+			errors.Add([]string{}, ERR_DESERIALIZATION, parseErr.Error())
+		}
+		mapForm(formStruct, ctx.Req.Form, nil, errors)
+		validateAndMap(formStruct, ctx, errors, ifacePtr...)
+	}
+}
+
+// Maximum amount of memory to use when parsing a multipart form.
+// Set this to whatever value you prefer; default is 10 MB.
+var MaxMemory = int64(1024 * 1024 * 10)
+
+// MultipartForm works much like Form, except it can parse multipart forms
+// and handle file uploads. Like the other deserialization middleware handlers,
+// you can pass in an interface to make the interface available for injection
+// into other handlers later.
+func MultipartForm(formStruct interface{}, ifacePtr ...interface{}) macaron.Handler {
+	return func(ctx *macaron.Context) {
+		var errors Errors
+		ensureNotPointer(formStruct)
+		formStruct := reflect.New(reflect.TypeOf(formStruct))
+		// This if check is necessary due to https://github.com/martini-contrib/csrf/issues/6
+		if ctx.Req.MultipartForm == nil {
+			// Workaround for multipart forms returning nil instead of an error
+			// when content is not multipart; see https://code.google.com/p/go/issues/detail?id=6334
+			if multipartReader, err := ctx.Req.MultipartReader(); err != nil {
+				errors.Add([]string{}, ERR_DESERIALIZATION, err.Error())
+			} else {
+				form, parseErr := multipartReader.ReadForm(MaxMemory)
+				if parseErr != nil {
+					errors.Add([]string{}, ERR_DESERIALIZATION, parseErr.Error())
+				}
+
+				if ctx.Req.Form == nil {
+					ctx.Req.ParseForm()
+				}
+				for k, v := range form.Value {
+					ctx.Req.Form[k] = append(ctx.Req.Form[k], v...)
+				}
+
+				ctx.Req.MultipartForm = form
+			}
+		}
+		mapForm(formStruct, ctx.Req.MultipartForm.Value, ctx.Req.MultipartForm.File, errors)
+		validateAndMap(formStruct, ctx, errors, ifacePtr...)
+	}
+}
+
+// Json is middleware to deserialize a JSON payload from the request
+// into the struct that is passed in. The resulting struct is then
+// validated, but no error handling is actually performed here.
+// An interface pointer can be added as a second argument in order
+// to map the struct to a specific interface.
+func Json(jsonStruct interface{}, ifacePtr ...interface{}) macaron.Handler {
+	return func(ctx *macaron.Context) {
+		var errors Errors
+		ensureNotPointer(jsonStruct)
+		jsonStruct := reflect.New(reflect.TypeOf(jsonStruct))
+		if ctx.Req.Request.Body != nil {
+			defer ctx.Req.Request.Body.Close()
+			err := json.NewDecoder(ctx.Req.Request.Body).Decode(jsonStruct.Interface())
+			if err != nil && err != io.EOF {
+				errors.Add([]string{}, ERR_DESERIALIZATION, err.Error())
+			}
+		}
+		validateAndMap(jsonStruct, ctx, errors, ifacePtr...)
+	}
+}
+
+// Validate is middleware to enforce required fields. If the struct
+// passed in implements Validator, then the user-defined Validate method
+// is executed, and its errors are mapped to the context. This middleware
+// performs no error handling: it merely detects errors and maps them.
+func Validate(obj interface{}) macaron.Handler {
+	return func(ctx *macaron.Context) {
+		var errors Errors
+		v := reflect.ValueOf(obj)
+		k := v.Kind()
+		if k == reflect.Interface || k == reflect.Ptr {
+			v = v.Elem()
+			k = v.Kind()
+		}
+		if k == reflect.Slice || k == reflect.Array {
+			for i := 0; i < v.Len(); i++ {
+				e := v.Index(i).Interface()
+				errors = validateStruct(errors, e)
+				if validator, ok := e.(Validator); ok {
+					errors = validator.Validate(ctx, errors)
+				}
+			}
+		} else {
+			errors = validateStruct(errors, obj)
+			if validator, ok := obj.(Validator); ok {
+				errors = validator.Validate(ctx, errors)
+			}
+		}
+		ctx.Map(errors)
+	}
+}
+
+var (
+	AlphaDashPattern    = regexp.MustCompile("[^\\d\\w-_]")
+	AlphaDashDotPattern = regexp.MustCompile("[^\\d\\w-_\\.]")
+	EmailPattern        = regexp.MustCompile("[\\w!#$%&'*+/=?^_`{|}~-]+(?:\\.[\\w!#$%&'*+/=?^_`{|}~-]+)*@(?:[\\w](?:[\\w-]*[\\w])?\\.)+[a-zA-Z0-9](?:[\\w-]*[\\w])?")
+	URLPattern          = regexp.MustCompile(`(http|https):\/\/(?:\\S+(?::\\S*)?@)?[\w\-_]+(\.[\w\-_]+)*([\w\-\.,@?^=%&amp;:/~\+#]*[\w\-\@?^=%&amp;/~\+#])?`)
+)
+
+type (
+	// Rule represents a validation rule.
+	Rule struct {
+		// IsMatch checks if rule matches.
+		IsMatch func(string) bool
+		// IsValid applies validation rule to condition.
+		IsValid func(Errors, string, interface{}) (bool, Errors)
+	}
+	// RuleMapper represents a validation rule mapper,
+	// it allwos users to add custom validation rules.
+	RuleMapper []*Rule
+)
+
+var ruleMapper RuleMapper
+
+// AddRule adds new validation rule.
+func AddRule(r *Rule) {
+	ruleMapper = append(ruleMapper, r)
+}
+
+func in(fieldValue interface{}, arr string) bool {
+	val := fmt.Sprintf("%v", fieldValue)
+	vals := strings.Split(arr, ",")
+	isIn := false
+	for _, v := range vals {
+		if v == val {
+			isIn = true
+			break
+		}
+	}
+	return isIn
+}
+
+func parseFormName(raw, actual string) string {
+	if len(actual) > 0 {
+		return actual
+	}
+	return nameMapper(raw)
+}
+
+// Performs required field checking on a struct
+func validateStruct(errors Errors, obj interface{}) Errors {
+	typ := reflect.TypeOf(obj)
+	val := reflect.ValueOf(obj)
+
+	if typ.Kind() == reflect.Ptr {
+		typ = typ.Elem()
+		val = val.Elem()
+	}
+
+	for i := 0; i < typ.NumField(); i++ {
+		field := typ.Field(i)
+
+		// Allow ignored fields in the struct
+		if field.Tag.Get("form") == "-" || !val.Field(i).CanInterface() {
+			continue
+		}
+
+		fieldVal := val.Field(i)
+		fieldValue := fieldVal.Interface()
+		zero := reflect.Zero(field.Type).Interface()
+
+		// Validate nested and embedded structs (if pointer, only do so if not nil)
+		if field.Type.Kind() == reflect.Struct ||
+			(field.Type.Kind() == reflect.Ptr && !reflect.DeepEqual(zero, fieldValue) &&
+				field.Type.Elem().Kind() == reflect.Struct) {
+			errors = validateStruct(errors, fieldValue)
+		}
+		errors = validateField(errors, zero, field, fieldVal, fieldValue)
+	}
+	return errors
+}
+
+func validateField(errors Errors, zero interface{}, field reflect.StructField, fieldVal reflect.Value, fieldValue interface{}) Errors {
+	if fieldVal.Kind() == reflect.Slice {
+		for i := 0; i < fieldVal.Len(); i++ {
+			sliceVal := fieldVal.Index(i)
+			if sliceVal.Kind() == reflect.Ptr {
+				sliceVal = sliceVal.Elem()
+			}
+
+			sliceValue := sliceVal.Interface()
+			zero := reflect.Zero(sliceVal.Type()).Interface()
+			if sliceVal.Kind() == reflect.Struct ||
+				(sliceVal.Kind() == reflect.Ptr && !reflect.DeepEqual(zero, sliceValue) &&
+					sliceVal.Elem().Kind() == reflect.Struct) {
+				errors = validateStruct(errors, sliceValue)
+			}
+			/* Apply validation rules to each item in a slice. ISSUE #3
+			else {
+				errors = validateField(errors, zero, field, sliceVal, sliceValue)
+			}*/
+		}
+	}
+
+VALIDATE_RULES:
+	for _, rule := range strings.Split(field.Tag.Get("binding"), ";") {
+		if len(rule) == 0 {
+			continue
+		}
+
+		switch {
+		case rule == "OmitEmpty":
+			if reflect.DeepEqual(zero, fieldValue) {
+				break VALIDATE_RULES
+			}
+		case rule == "Required":
+			if reflect.DeepEqual(zero, fieldValue) {
+				errors.Add([]string{field.Name}, ERR_REQUIRED, "Required")
+				break VALIDATE_RULES
+			}
+		case rule == "AlphaDash":
+			if AlphaDashPattern.MatchString(fmt.Sprintf("%v", fieldValue)) {
+				errors.Add([]string{field.Name}, ERR_ALPHA_DASH, "AlphaDash")
+				break VALIDATE_RULES
+			}
+		case rule == "AlphaDashDot":
+			if AlphaDashDotPattern.MatchString(fmt.Sprintf("%v", fieldValue)) {
+				errors.Add([]string{field.Name}, ERR_ALPHA_DASH_DOT, "AlphaDashDot")
+				break VALIDATE_RULES
+			}
+		case strings.HasPrefix(rule, "Size("):
+			size, _ := strconv.Atoi(rule[5 : len(rule)-1])
+			if str, ok := fieldValue.(string); ok && utf8.RuneCountInString(str) != size {
+				errors.Add([]string{field.Name}, ERR_SIZE, "Size")
+				break VALIDATE_RULES
+			}
+			v := reflect.ValueOf(fieldValue)
+			if v.Kind() == reflect.Slice && v.Len() != size {
+				errors.Add([]string{field.Name}, ERR_SIZE, "Size")
+				break VALIDATE_RULES
+			}
+		case strings.HasPrefix(rule, "MinSize("):
+			min, _ := strconv.Atoi(rule[8 : len(rule)-1])
+			if str, ok := fieldValue.(string); ok && utf8.RuneCountInString(str) < min {
+				errors.Add([]string{field.Name}, ERR_MIN_SIZE, "MinSize")
+				break VALIDATE_RULES
+			}
+			v := reflect.ValueOf(fieldValue)
+			if v.Kind() == reflect.Slice && v.Len() < min {
+				errors.Add([]string{field.Name}, ERR_MIN_SIZE, "MinSize")
+				break VALIDATE_RULES
+			}
+		case strings.HasPrefix(rule, "MaxSize("):
+			max, _ := strconv.Atoi(rule[8 : len(rule)-1])
+			if str, ok := fieldValue.(string); ok && utf8.RuneCountInString(str) > max {
+				errors.Add([]string{field.Name}, ERR_MAX_SIZE, "MaxSize")
+				break VALIDATE_RULES
+			}
+			v := reflect.ValueOf(fieldValue)
+			if v.Kind() == reflect.Slice && v.Len() > max {
+				errors.Add([]string{field.Name}, ERR_MAX_SIZE, "MaxSize")
+				break VALIDATE_RULES
+			}
+		case strings.HasPrefix(rule, "Range("):
+			nums := strings.Split(rule[6:len(rule)-1], ",")
+			if len(nums) != 2 {
+				break VALIDATE_RULES
+			}
+			val := com.StrTo(fmt.Sprintf("%v", fieldValue)).MustInt()
+			if val < com.StrTo(nums[0]).MustInt() || val > com.StrTo(nums[1]).MustInt() {
+				errors.Add([]string{field.Name}, ERR_RANGE, "Range")
+				break VALIDATE_RULES
+			}
+		case rule == "Email":
+			if !EmailPattern.MatchString(fmt.Sprintf("%v", fieldValue)) {
+				errors.Add([]string{field.Name}, ERR_EMAIL, "Email")
+				break VALIDATE_RULES
+			}
+		case rule == "Url":
+			str := fmt.Sprintf("%v", fieldValue)
+			if len(str) == 0 {
+				continue
+			} else if !URLPattern.MatchString(str) {
+				errors.Add([]string{field.Name}, ERR_URL, "Url")
+				break VALIDATE_RULES
+			}
+		case strings.HasPrefix(rule, "In("):
+			if !in(fieldValue, rule[3:len(rule)-1]) {
+				errors.Add([]string{field.Name}, ERR_IN, "In")
+				break VALIDATE_RULES
+			}
+		case strings.HasPrefix(rule, "NotIn("):
+			if in(fieldValue, rule[6:len(rule)-1]) {
+				errors.Add([]string{field.Name}, ERR_NOT_INT, "NotIn")
+				break VALIDATE_RULES
+			}
+		case strings.HasPrefix(rule, "Include("):
+			if !strings.Contains(fmt.Sprintf("%v", fieldValue), rule[8:len(rule)-1]) {
+				errors.Add([]string{field.Name}, ERR_INCLUDE, "Include")
+				break VALIDATE_RULES
+			}
+		case strings.HasPrefix(rule, "Exclude("):
+			if strings.Contains(fmt.Sprintf("%v", fieldValue), rule[8:len(rule)-1]) {
+				errors.Add([]string{field.Name}, ERR_EXCLUDE, "Exclude")
+				break VALIDATE_RULES
+			}
+		case strings.HasPrefix(rule, "Default("):
+			if reflect.DeepEqual(zero, fieldValue) {
+				if fieldVal.CanAddr() {
+					setWithProperType(field.Type.Kind(), rule[8:len(rule)-1], fieldVal, field.Tag.Get("form"), errors)
+				} else {
+					errors.Add([]string{field.Name}, ERR_EXCLUDE, "Default")
+					break VALIDATE_RULES
+				}
+			}
+		default:
+			// Apply custom validation rules.
+			var isValid bool
+			for i := range ruleMapper {
+				if ruleMapper[i].IsMatch(rule) {
+					isValid, errors = ruleMapper[i].IsValid(errors, field.Name, fieldValue)
+					if !isValid {
+						break VALIDATE_RULES
+					}
+				}
+			}
+		}
+	}
+	return errors
+}
+
+// NameMapper represents a form tag name mapper.
+type NameMapper func(string) string
+
+var (
+	nameMapper = func(field string) string {
+		newstr := make([]rune, 0, len(field))
+		for i, chr := range field {
+			if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
+				if i > 0 {
+					newstr = append(newstr, '_')
+				}
+				chr -= ('A' - 'a')
+			}
+			newstr = append(newstr, chr)
+		}
+		return string(newstr)
+	}
+)
+
+// SetNameMapper sets name mapper.
+func SetNameMapper(nm NameMapper) {
+	nameMapper = nm
+}
+
+// Takes values from the form data and puts them into a struct
+func mapForm(formStruct reflect.Value, form map[string][]string,
+	formfile map[string][]*multipart.FileHeader, errors Errors) {
+
+	if formStruct.Kind() == reflect.Ptr {
+		formStruct = formStruct.Elem()
+	}
+	typ := formStruct.Type()
+
+	for i := 0; i < typ.NumField(); i++ {
+		typeField := typ.Field(i)
+		structField := formStruct.Field(i)
+
+		if typeField.Type.Kind() == reflect.Ptr && typeField.Anonymous {
+			structField.Set(reflect.New(typeField.Type.Elem()))
+			mapForm(structField.Elem(), form, formfile, errors)
+			if reflect.DeepEqual(structField.Elem().Interface(), reflect.Zero(structField.Elem().Type()).Interface()) {
+				structField.Set(reflect.Zero(structField.Type()))
+			}
+		} else if typeField.Type.Kind() == reflect.Struct {
+			mapForm(structField, form, formfile, errors)
+		}
+
+		inputFieldName := parseFormName(typeField.Name, typeField.Tag.Get("form"))
+		if len(inputFieldName) == 0 || !structField.CanSet() {
+			continue
+		}
+
+		inputValue, exists := form[inputFieldName]
+		if exists {
+			numElems := len(inputValue)
+			if structField.Kind() == reflect.Slice && numElems > 0 {
+				sliceOf := structField.Type().Elem().Kind()
+				slice := reflect.MakeSlice(structField.Type(), numElems, numElems)
+				for i := 0; i < numElems; i++ {
+					setWithProperType(sliceOf, inputValue[i], slice.Index(i), inputFieldName, errors)
+				}
+				formStruct.Field(i).Set(slice)
+			} else {
+				setWithProperType(typeField.Type.Kind(), inputValue[0], structField, inputFieldName, errors)
+			}
+			continue
+		}
+
+		inputFile, exists := formfile[inputFieldName]
+		if !exists {
+			continue
+		}
+		fhType := reflect.TypeOf((*multipart.FileHeader)(nil))
+		numElems := len(inputFile)
+		if structField.Kind() == reflect.Slice && numElems > 0 && structField.Type().Elem() == fhType {
+			slice := reflect.MakeSlice(structField.Type(), numElems, numElems)
+			for i := 0; i < numElems; i++ {
+				slice.Index(i).Set(reflect.ValueOf(inputFile[i]))
+			}
+			structField.Set(slice)
+		} else if structField.Type() == fhType {
+			structField.Set(reflect.ValueOf(inputFile[0]))
+		}
+	}
+}
+
+// This sets the value in a struct of an indeterminate type to the
+// matching value from the request (via Form middleware) in the
+// same type, so that not all deserialized values have to be strings.
+// Supported types are string, int, float, and bool.
+func setWithProperType(valueKind reflect.Kind, val string, structField reflect.Value, nameInTag string, errors Errors) {
+	switch valueKind {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		if val == "" {
+			val = "0"
+		}
+		intVal, err := strconv.ParseInt(val, 10, 64)
+		if err != nil {
+			errors.Add([]string{nameInTag}, ERR_INTERGER_TYPE, "Value could not be parsed as integer")
+		} else {
+			structField.SetInt(intVal)
+		}
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		if val == "" {
+			val = "0"
+		}
+		uintVal, err := strconv.ParseUint(val, 10, 64)
+		if err != nil {
+			errors.Add([]string{nameInTag}, ERR_INTERGER_TYPE, "Value could not be parsed as unsigned integer")
+		} else {
+			structField.SetUint(uintVal)
+		}
+	case reflect.Bool:
+		if val == "on" {
+			structField.SetBool(true)
+			return
+		}
+
+		if val == "" {
+			val = "false"
+		}
+		boolVal, err := strconv.ParseBool(val)
+		if err != nil {
+			errors.Add([]string{nameInTag}, ERR_BOOLEAN_TYPE, "Value could not be parsed as boolean")
+		} else if boolVal {
+			structField.SetBool(true)
+		}
+	case reflect.Float32:
+		if val == "" {
+			val = "0.0"
+		}
+		floatVal, err := strconv.ParseFloat(val, 32)
+		if err != nil {
+			errors.Add([]string{nameInTag}, ERR_FLOAT_TYPE, "Value could not be parsed as 32-bit float")
+		} else {
+			structField.SetFloat(floatVal)
+		}
+	case reflect.Float64:
+		if val == "" {
+			val = "0.0"
+		}
+		floatVal, err := strconv.ParseFloat(val, 64)
+		if err != nil {
+			errors.Add([]string{nameInTag}, ERR_FLOAT_TYPE, "Value could not be parsed as 64-bit float")
+		} else {
+			structField.SetFloat(floatVal)
+		}
+	case reflect.String:
+		structField.SetString(val)
+	}
+}
+
+// Don't pass in pointers to bind to. Can lead to bugs.
+func ensureNotPointer(obj interface{}) {
+	if reflect.TypeOf(obj).Kind() == reflect.Ptr {
+		panic("Pointers are not accepted as binding models")
+	}
+}
+
+// Performs validation and combines errors from validation
+// with errors from deserialization, then maps both the
+// resulting struct and the errors to the context.
+func validateAndMap(obj reflect.Value, ctx *macaron.Context, errors Errors, ifacePtr ...interface{}) {
+	ctx.Invoke(Validate(obj.Interface()))
+	errors = append(errors, getErrors(ctx)...)
+	ctx.Map(errors)
+	ctx.Map(obj.Elem().Interface())
+	if len(ifacePtr) > 0 {
+		ctx.MapTo(obj.Elem().Interface(), ifacePtr[0])
+	}
+}
+
+// getErrors simply gets the errors from the context (it's kind of a chore)
+func getErrors(ctx *macaron.Context) Errors {
+	return ctx.GetVal(reflect.TypeOf(Errors{})).Interface().(Errors)
+}
+
+type (
+	// ErrorHandler is the interface that has custom error handling process.
+	ErrorHandler interface {
+		// Error handles validation errors with custom process.
+		Error(*macaron.Context, Errors)
+	}
+
+	// Validator is the interface that handles some rudimentary
+	// request validation logic so your application doesn't have to.
+	Validator interface {
+		// Validate validates that the request is OK. It is recommended
+		// that validation be limited to checking values for syntax and
+		// semantics, enough to know that you can make sense of the request
+		// in your application. For example, you might verify that a credit
+		// card number matches a valid pattern, but you probably wouldn't
+		// perform an actual credit card authorization here.
+		Validate(*macaron.Context, Errors) Errors
+	}
+)

vendor/github.com/go-macaron/binding/errors.go

@@ -0,0 +1,159 @@
+// Copyright 2014 Martini Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package binding
+
+const (
+	// Type mismatch errors.
+	ERR_CONTENT_TYPE    = "ContentTypeError"
+	ERR_DESERIALIZATION = "DeserializationError"
+	ERR_INTERGER_TYPE   = "IntegerTypeError"
+	ERR_BOOLEAN_TYPE    = "BooleanTypeError"
+	ERR_FLOAT_TYPE      = "FloatTypeError"
+
+	// Validation errors.
+	ERR_REQUIRED       = "RequiredError"
+	ERR_ALPHA_DASH     = "AlphaDashError"
+	ERR_ALPHA_DASH_DOT = "AlphaDashDotError"
+	ERR_SIZE           = "SizeError"
+	ERR_MIN_SIZE       = "MinSizeError"
+	ERR_MAX_SIZE       = "MaxSizeError"
+	ERR_RANGE          = "RangeError"
+	ERR_EMAIL          = "EmailError"
+	ERR_URL            = "UrlError"
+	ERR_IN             = "InError"
+	ERR_NOT_INT        = "NotInError"
+	ERR_INCLUDE        = "IncludeError"
+	ERR_EXCLUDE        = "ExcludeError"
+	ERR_DEFAULT        = "DefaultError"
+)
+
+type (
+	// Errors may be generated during deserialization, binding,
+	// or validation. This type is mapped to the context so you
+	// can inject it into your own handlers and use it in your
+	// application if you want all your errors to look the same.
+	Errors []Error
+
+	Error struct {
+		// An error supports zero or more field names, because an
+		// error can morph three ways: (1) it can indicate something
+		// wrong with the request as a whole, (2) it can point to a
+		// specific problem with a particular input field, or (3) it
+		// can span multiple related input fields.
+		FieldNames []string `json:"fieldNames,omitempty"`
+
+		// The classification is like an error code, convenient to
+		// use when processing or categorizing an error programmatically.
+		// It may also be called the "kind" of error.
+		Classification string `json:"classification,omitempty"`
+
+		// Message should be human-readable and detailed enough to
+		// pinpoint and resolve the problem, but it should be brief. For
+		// example, a payload of 100 objects in a JSON array might have
+		// an error in the 41st object. The message should help the
+		// end user find and fix the error with their request.
+		Message string `json:"message,omitempty"`
+	}
+)
+
+// Add adds an error associated with the fields indicated
+// by fieldNames, with the given classification and message.
+func (e *Errors) Add(fieldNames []string, classification, message string) {
+	*e = append(*e, Error{
+		FieldNames:     fieldNames,
+		Classification: classification,
+		Message:        message,
+	})
+}
+
+// Len returns the number of errors.
+func (e *Errors) Len() int {
+	return len(*e)
+}
+
+// Has determines whether an Errors slice has an Error with
+// a given classification in it; it does not search on messages
+// or field names.
+func (e *Errors) Has(class string) bool {
+	for _, err := range *e {
+		if err.Kind() == class {
+			return true
+		}
+	}
+	return false
+}
+
+/*
+// WithClass gets a copy of errors that are classified by the
+// the given classification.
+func (e *Errors) WithClass(classification string) Errors {
+	var errs Errors
+	for _, err := range *e {
+		if err.Kind() == classification {
+			errs = append(errs, err)
+		}
+	}
+	return errs
+}
+
+// ForField gets a copy of errors that are associated with the
+// field by the given name.
+func (e *Errors) ForField(name string) Errors {
+	var errs Errors
+	for _, err := range *e {
+		for _, fieldName := range err.Fields() {
+			if fieldName == name {
+				errs = append(errs, err)
+				break
+			}
+		}
+	}
+	return errs
+}
+
+// Get gets errors of a particular class for the specified
+// field name.
+func (e *Errors) Get(class, fieldName string) Errors {
+	var errs Errors
+	for _, err := range *e {
+		if err.Kind() == class {
+			for _, nameOfField := range err.Fields() {
+				if nameOfField == fieldName {
+					errs = append(errs, err)
+					break
+				}
+			}
+		}
+	}
+	return errs
+}
+*/
+
+// Fields returns the list of field names this error is
+// associated with.
+func (e Error) Fields() []string {
+	return e.FieldNames
+}
+
+// Kind returns this error's classification.
+func (e Error) Kind() string {
+	return e.Classification
+}
+
+// Error returns this error's message.
+func (e Error) Error() string {
+	return e.Message
+}

vendor/github.com/go-macaron/cache/LICENSE

@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright
+owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other entities
+that control, are controlled by, or are under common control with that entity.
+For the purposes of this definition, "control" means (i) the power, direct or
+indirect, to cause the direction or management of such entity, whether by
+contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the
+outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
+permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications, including
+but not limited to software source code, documentation source, and configuration
+files.
+
+"Object" form shall mean any form resulting from mechanical transformation or
+translation of a Source form, including but not limited to compiled object code,
+generated documentation, and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or Object form, made
+available under the License, as indicated by a copyright notice that is included
+in or attached to the work (an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form, that
+is based on (or derived from) the Work and for which the editorial revisions,
+annotations, elaborations, or other modifications represent, as a whole, an
+original work of authorship. For the purposes of this License, Derivative Works
+shall not include works that remain separable from, or merely link (or bind by
+name) to the interfaces of, the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, including the original version
+of the Work and any modifications or additions to that Work or Derivative Works
+thereof, that is intentionally submitted to Licensor for inclusion in the Work
+by the copyright owner or by an individual or Legal Entity authorized to submit
+on behalf of the copyright owner. For the purposes of this definition,
+"submitted" means any form of electronic, verbal, or written communication sent
+to the Licensor or its representatives, including but not limited to
+communication on electronic mailing lists, source code control systems, and
+issue tracking systems that are managed by, or on behalf of, the Licensor for
+the purpose of discussing and improving the Work, but excluding communication
+that is conspicuously marked or otherwise designated in writing by the copyright
+owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
+of whom a Contribution has been received by Licensor and subsequently
+incorporated within the Work.
+
+2. Grant of Copyright License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable copyright license to reproduce, prepare Derivative Works of,
+publicly display, publicly perform, sublicense, and distribute the Work and such
+Derivative Works in Source or Object form.
+
+3. Grant of Patent License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable (except as stated in this section) patent license to make, have
+made, use, offer to sell, sell, import, and otherwise transfer the Work, where
+such license applies only to those patent claims licensable by such Contributor
+that are necessarily infringed by their Contribution(s) alone or by combination
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+submitted. If You institute patent litigation against any entity (including a
+cross-claim or counterclaim in a lawsuit) alleging that the Work or a
+Contribution incorporated within the Work constitutes direct or contributory
+patent infringement, then any patent licenses granted to You under this License
+for that Work shall terminate as of the date such litigation is filed.
+
+4. Redistribution.
+
+You may reproduce and distribute copies of the Work or Derivative Works thereof
+in any medium, with or without modifications, and in Source or Object form,
+provided that You meet the following conditions:
+
+You must give any other recipients of the Work or Derivative Works a copy of
+this License; and
+You must cause any modified files to carry prominent notices stating that You
+changed the files; and
+You must retain, in the Source form of any Derivative Works that You distribute,
+all copyright, patent, trademark, and attribution notices from the Source form
+of the Work, excluding those notices that do not pertain to any part of the
+Derivative Works; and
+If the Work includes a "NOTICE" text file as part of its distribution, then any
+Derivative Works that You distribute must include a readable copy of the
+attribution notices contained within such NOTICE file, excluding those notices
+that do not pertain to any part of the Derivative Works, in at least one of the
+following places: within a NOTICE text file distributed as part of the
+Derivative Works; within the Source form or documentation, if provided along
+with the Derivative Works; or, within a display generated by the Derivative
+Works, if and wherever such third-party notices normally appear. The contents of
+the NOTICE file are for informational purposes only and do not modify the
+License. You may add Your own attribution notices within Derivative Works that
+You distribute, alongside or as an addendum to the NOTICE text from the Work,
+provided that such additional attribution notices cannot be construed as
+modifying the License.
+You may add Your own copyright statement to Your modifications and may provide
+additional or different license terms and conditions for use, reproduction, or
+distribution of Your modifications, or for any such Derivative Works as a whole,
+provided Your use, reproduction, and distribution of the Work otherwise complies
+with the conditions stated in this License.
+
+5. Submission of Contributions.
+
+Unless You explicitly state otherwise, any Contribution intentionally submitted
+for inclusion in the Work by You to the Licensor shall be under the terms and
+conditions of this License, without any additional terms or conditions.
+Notwithstanding the above, nothing herein shall supersede or modify the terms of
+any separate license agreement you may have executed with Licensor regarding
+such Contributions.
+
+6. Trademarks.
+
+This License does not grant permission to use the trade names, trademarks,
+service marks, or product names of the Licensor, except as required for
+reasonable and customary use in describing the origin of the Work and
+reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty.
+
+Unless required by applicable law or agreed to in writing, Licensor provides the
+Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
+including, without limitation, any warranties or conditions of TITLE,
+NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are
+solely responsible for determining the appropriateness of using or
+redistributing the Work and assume any risks associated with Your exercise of
+permissions under this License.
+
+8. Limitation of Liability.
+
+In no event and under no legal theory, whether in tort (including negligence),
+contract, or otherwise, unless required by applicable law (such as deliberate
+and grossly negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special, incidental,
+or consequential damages of any character arising as a result of this License or
+out of the use or inability to use the Work (including but not limited to
+damages for loss of goodwill, work stoppage, computer failure or malfunction, or
+any and all other commercial damages or losses), even if such Contributor has
+been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability.
+
+While redistributing the Work or Derivative Works thereof, You may choose to
+offer, and charge a fee for, acceptance of support, warranty, indemnity, or
+other liability obligations and/or rights consistent with this License. However,
+in accepting such obligations, You may act only on Your own behalf and on Your
+sole responsibility, not on behalf of any other Contributor, and only if You
+agree to indemnify, defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason of your
+accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own
+identifying information. (Don't include the brackets!) The text should be
+enclosed in the appropriate comment syntax for the file format. We also
+recommend that a file or class name and description of purpose be included on
+the same "printed page" as the copyright notice for easier identification within
+third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/go-macaron/cache/README.md

@@ -0,0 +1,20 @@
+# cache [![Build Status](https://travis-ci.org/go-macaron/cache.svg?branch=master)](https://travis-ci.org/go-macaron/cache) [![](http://gocover.io/_badge/github.com/go-macaron/cache)](http://gocover.io/github.com/go-macaron/cache)
+
+Middleware cache provides cache management for [Macaron](https://github.com/go-macaron/macaron). It can use many cache adapters, including memory, file, Redis, Memcache, PostgreSQL, MySQL, Ledis and Nodb.
+
+### Installation
+
+	go get github.com/go-macaron/cache
+
+## Getting Help
+
+- [API Reference](https://gowalker.org/github.com/go-macaron/cache)
+- [Documentation](http://go-macaron.com/docs/middlewares/cache)
+
+## Credits
+
+This package is a modified version of [beego/cache](https://github.com/astaxie/beego/tree/master/cache).
+
+## License
+
+This project is under the Apache License, Version 2.0. See the [LICENSE](LICENSE) file for the full license text.

vendor/github.com/go-macaron/cache/cache.go

@@ -0,0 +1,122 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+// Package cache is a middleware that provides the cache management of Macaron.
+package cache
+
+import (
+	"fmt"
+
+	"gopkg.in/macaron.v1"
+)
+
+const _VERSION = "0.3.0"
+
+func Version() string {
+	return _VERSION
+}
+
+// Cache is the interface that operates the cache data.
+type Cache interface {
+	// Put puts value into cache with key and expire time.
+	Put(key string, val interface{}, timeout int64) error
+	// Get gets cached value by given key.
+	Get(key string) interface{}
+	// Delete deletes cached value by given key.
+	Delete(key string) error
+	// Incr increases cached int-type value by given key as a counter.
+	Incr(key string) error
+	// Decr decreases cached int-type value by given key as a counter.
+	Decr(key string) error
+	// IsExist returns true if cached value exists.
+	IsExist(key string) bool
+	// Flush deletes all cached data.
+	Flush() error
+	// StartAndGC starts GC routine based on config string settings.
+	StartAndGC(opt Options) error
+}
+
+// Options represents a struct for specifying configuration options for the cache middleware.
+type Options struct {
+	// Name of adapter. Default is "memory".
+	Adapter string
+	// Adapter configuration, it's corresponding to adapter.
+	AdapterConfig string
+	// GC interval time in seconds. Default is 60.
+	Interval int
+	// Occupy entire database. Default is false.
+	OccupyMode bool
+	// Configuration section name. Default is "cache".
+	Section string
+}
+
+func prepareOptions(options []Options) Options {
+	var opt Options
+	if len(options) > 0 {
+		opt = options[0]
+	}
+	if len(opt.Section) == 0 {
+		opt.Section = "cache"
+	}
+	sec := macaron.Config().Section(opt.Section)
+
+	if len(opt.Adapter) == 0 {
+		opt.Adapter = sec.Key("ADAPTER").MustString("memory")
+	}
+	if opt.Interval == 0 {
+		opt.Interval = sec.Key("INTERVAL").MustInt(60)
+	}
+	if len(opt.AdapterConfig) == 0 {
+		opt.AdapterConfig = sec.Key("ADAPTER_CONFIG").MustString("data/caches")
+	}
+
+	return opt
+}
+
+// NewCacher creates and returns a new cacher by given adapter name and configuration.
+// It panics when given adapter isn't registered and starts GC automatically.
+func NewCacher(name string, opt Options) (Cache, error) {
+	adapter, ok := adapters[name]
+	if !ok {
+		return nil, fmt.Errorf("cache: unknown adapter '%s'(forgot to import?)", name)
+	}
+	return adapter, adapter.StartAndGC(opt)
+}
+
+// Cacher is a middleware that maps a cache.Cache service into the Macaron handler chain.
+// An single variadic cache.Options struct can be optionally provided to configure.
+func Cacher(options ...Options) macaron.Handler {
+	opt := prepareOptions(options)
+	cache, err := NewCacher(opt.Adapter, opt)
+	if err != nil {
+		panic(err)
+	}
+	return func(ctx *macaron.Context) {
+		ctx.Map(cache)
+	}
+}
+
+var adapters = make(map[string]Cache)
+
+// Register registers a adapter.
+func Register(name string, adapter Cache) {
+	if adapter == nil {
+		panic("cache: cannot register adapter with nil value")
+	}
+	if _, dup := adapters[name]; dup {
+		panic(fmt.Errorf("cache: cannot register adapter '%s' twice", name))
+	}
+	adapters[name] = adapter
+}

vendor/github.com/go-macaron/cache/file.go

@@ -0,0 +1,208 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package cache
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"path/filepath"
+	"sync"
+	"time"
+
+	"github.com/Unknwon/com"
+	"gopkg.in/macaron.v1"
+)
+
+// Item represents a cache item.
+type Item struct {
+	Val     interface{}
+	Created int64
+	Expire  int64
+}
+
+func (item *Item) hasExpired() bool {
+	return item.Expire > 0 &&
+		(time.Now().Unix()-item.Created) >= item.Expire
+}
+
+// FileCacher represents a file cache adapter implementation.
+type FileCacher struct {
+	lock     sync.Mutex
+	rootPath string
+	interval int // GC interval.
+}
+
+// NewFileCacher creates and returns a new file cacher.
+func NewFileCacher() *FileCacher {
+	return &FileCacher{}
+}
+
+func (c *FileCacher) filepath(key string) string {
+	m := md5.Sum([]byte(key))
+	hash := hex.EncodeToString(m[:])
+	return filepath.Join(c.rootPath, string(hash[0]), string(hash[1]), hash)
+}
+
+// Put puts value into cache with key and expire time.
+// If expired is 0, it will be deleted by next GC operation.
+func (c *FileCacher) Put(key string, val interface{}, expire int64) error {
+	filename := c.filepath(key)
+	item := &Item{val, time.Now().Unix(), expire}
+	data, err := EncodeGob(item)
+	if err != nil {
+		return err
+	}
+
+	os.MkdirAll(filepath.Dir(filename), os.ModePerm)
+	return ioutil.WriteFile(filename, data, os.ModePerm)
+}
+
+func (c *FileCacher) read(key string) (*Item, error) {
+	filename := c.filepath(key)
+
+	data, err := ioutil.ReadFile(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	item := new(Item)
+	return item, DecodeGob(data, item)
+}
+
+// Get gets cached value by given key.
+func (c *FileCacher) Get(key string) interface{} {
+	item, err := c.read(key)
+	if err != nil {
+		return nil
+	}
+
+	if item.hasExpired() {
+		os.Remove(c.filepath(key))
+		return nil
+	}
+	return item.Val
+}
+
+// Delete deletes cached value by given key.
+func (c *FileCacher) Delete(key string) error {
+	return os.Remove(c.filepath(key))
+}
+
+// Incr increases cached int-type value by given key as a counter.
+func (c *FileCacher) Incr(key string) error {
+	item, err := c.read(key)
+	if err != nil {
+		return err
+	}
+
+	item.Val, err = Incr(item.Val)
+	if err != nil {
+		return err
+	}
+
+	return c.Put(key, item.Val, item.Expire)
+}
+
+// Decrease cached int value.
+func (c *FileCacher) Decr(key string) error {
+	item, err := c.read(key)
+	if err != nil {
+		return err
+	}
+
+	item.Val, err = Decr(item.Val)
+	if err != nil {
+		return err
+	}
+
+	return c.Put(key, item.Val, item.Expire)
+}
+
+// IsExist returns true if cached value exists.
+func (c *FileCacher) IsExist(key string) bool {
+	return com.IsExist(c.filepath(key))
+}
+
+// Flush deletes all cached data.
+func (c *FileCacher) Flush() error {
+	return os.RemoveAll(c.rootPath)
+}
+
+func (c *FileCacher) startGC() {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	if c.interval < 1 {
+		return
+	}
+
+	if err := filepath.Walk(c.rootPath, func(path string, fi os.FileInfo, err error) error {
+		if err != nil {
+			return fmt.Errorf("Walk: %v", err)
+		}
+
+		if fi.IsDir() {
+			return nil
+		}
+
+		data, err := ioutil.ReadFile(path)
+		if err != nil && !os.IsNotExist(err) {
+			fmt.Errorf("ReadFile: %v", err)
+		}
+
+		item := new(Item)
+		if err = DecodeGob(data, item); err != nil {
+			return err
+		}
+		if item.hasExpired() {
+			if err = os.Remove(path); err != nil && !os.IsNotExist(err) {
+				return fmt.Errorf("Remove: %v", err)
+			}
+		}
+		return nil
+	}); err != nil {
+		log.Printf("error garbage collecting cache files: %v", err)
+	}
+
+	time.AfterFunc(time.Duration(c.interval)*time.Second, func() { c.startGC() })
+}
+
+// StartAndGC starts GC routine based on config string settings.
+func (c *FileCacher) StartAndGC(opt Options) error {
+	c.lock.Lock()
+	c.rootPath = opt.AdapterConfig
+	c.interval = opt.Interval
+
+	if !filepath.IsAbs(c.rootPath) {
+		c.rootPath = filepath.Join(macaron.Root, c.rootPath)
+	}
+	c.lock.Unlock()
+
+	if err := os.MkdirAll(c.rootPath, os.ModePerm); err != nil {
+		return err
+	}
+
+	go c.startGC()
+	return nil
+}
+
+func init() {
+	Register("file", NewFileCacher())
+}

vendor/github.com/go-macaron/cache/memcache/memcache.go

@@ -0,0 +1,92 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package cache
+
+import (
+	"strings"
+
+	"github.com/Unknwon/com"
+	"github.com/bradfitz/gomemcache/memcache"
+
+	"github.com/go-macaron/cache"
+)
+
+// MemcacheCacher represents a memcache cache adapter implementation.
+type MemcacheCacher struct {
+	c *memcache.Client
+}
+
+func NewItem(key string, data []byte, expire int32) *memcache.Item {
+	return &memcache.Item{
+		Key:        key,
+		Value:      data,
+		Expiration: expire,
+	}
+}
+
+// Put puts value into cache with key and expire time.
+// If expired is 0, it lives forever.
+func (c *MemcacheCacher) Put(key string, val interface{}, expire int64) error {
+	return c.c.Set(NewItem(key, []byte(com.ToStr(val)), int32(expire)))
+}
+
+// Get gets cached value by given key.
+func (c *MemcacheCacher) Get(key string) interface{} {
+	item, err := c.c.Get(key)
+	if err != nil {
+		return nil
+	}
+	return string(item.Value)
+}
+
+// Delete deletes cached value by given key.
+func (c *MemcacheCacher) Delete(key string) error {
+	return c.c.Delete(key)
+}
+
+// Incr increases cached int-type value by given key as a counter.
+func (c *MemcacheCacher) Incr(key string) error {
+	_, err := c.c.Increment(key, 1)
+	return err
+}
+
+// Decr decreases cached int-type value by given key as a counter.
+func (c *MemcacheCacher) Decr(key string) error {
+	_, err := c.c.Decrement(key, 1)
+	return err
+}
+
+// IsExist returns true if cached value exists.
+func (c *MemcacheCacher) IsExist(key string) bool {
+	_, err := c.c.Get(key)
+	return err == nil
+}
+
+// Flush deletes all cached data.
+func (c *MemcacheCacher) Flush() error {
+	return c.c.FlushAll()
+}
+
+// StartAndGC starts GC routine based on config string settings.
+// AdapterConfig: 127.0.0.1:9090;127.0.0.1:9091
+func (c *MemcacheCacher) StartAndGC(opt cache.Options) error {
+	c.c = memcache.New(strings.Split(opt.AdapterConfig, ";")...)
+	return nil
+}
+
+func init() {
+	cache.Register("memcache", &MemcacheCacher{})
+}

vendor/github.com/go-macaron/cache/memcache/memcache.goconvey

@@ -0,0 +1 @@
+ignore

vendor/github.com/go-macaron/cache/memory.go

@@ -0,0 +1,179 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package cache
+
+import (
+	"errors"
+	"sync"
+	"time"
+)
+
+// MemoryItem represents a memory cache item.
+type MemoryItem struct {
+	val     interface{}
+	created int64
+	expire  int64
+}
+
+func (item *MemoryItem) hasExpired() bool {
+	return item.expire > 0 &&
+		(time.Now().Unix()-item.created) >= item.expire
+}
+
+// MemoryCacher represents a memory cache adapter implementation.
+type MemoryCacher struct {
+	lock     sync.RWMutex
+	items    map[string]*MemoryItem
+	interval int // GC interval.
+}
+
+// NewMemoryCacher creates and returns a new memory cacher.
+func NewMemoryCacher() *MemoryCacher {
+	return &MemoryCacher{items: make(map[string]*MemoryItem)}
+}
+
+// Put puts value into cache with key and expire time.
+// If expired is 0, it will be deleted by next GC operation.
+func (c *MemoryCacher) Put(key string, val interface{}, expire int64) error {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	c.items[key] = &MemoryItem{
+		val:     val,
+		created: time.Now().Unix(),
+		expire:  expire,
+	}
+	return nil
+}
+
+// Get gets cached value by given key.
+func (c *MemoryCacher) Get(key string) interface{} {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+
+	item, ok := c.items[key]
+	if !ok {
+		return nil
+	}
+	if item.hasExpired() {
+		go c.Delete(key)
+		return nil
+	}
+	return item.val
+}
+
+// Delete deletes cached value by given key.
+func (c *MemoryCacher) Delete(key string) error {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	delete(c.items, key)
+	return nil
+}
+
+// Incr increases cached int-type value by given key as a counter.
+func (c *MemoryCacher) Incr(key string) (err error) {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+
+	item, ok := c.items[key]
+	if !ok {
+		return errors.New("key not exist")
+	}
+	item.val, err = Incr(item.val)
+	return err
+}
+
+// Decr decreases cached int-type value by given key as a counter.
+func (c *MemoryCacher) Decr(key string) (err error) {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+
+	item, ok := c.items[key]
+	if !ok {
+		return errors.New("key not exist")
+	}
+
+	item.val, err = Decr(item.val)
+	return err
+}
+
+// IsExist returns true if cached value exists.
+func (c *MemoryCacher) IsExist(key string) bool {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+
+	_, ok := c.items[key]
+	return ok
+}
+
+// Flush deletes all cached data.
+func (c *MemoryCacher) Flush() error {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	c.items = make(map[string]*MemoryItem)
+	return nil
+}
+
+func (c *MemoryCacher) checkRawExpiration(key string) {
+	item, ok := c.items[key]
+	if !ok {
+		return
+	}
+
+	if item.hasExpired() {
+		delete(c.items, key)
+	}
+}
+
+func (c *MemoryCacher) checkExpiration(key string) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	c.checkRawExpiration(key)
+}
+
+func (c *MemoryCacher) startGC() {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	if c.interval < 1 {
+		return
+	}
+
+	if c.items != nil {
+		for key, _ := range c.items {
+			c.checkRawExpiration(key)
+		}
+	}
+
+	time.AfterFunc(time.Duration(c.interval)*time.Second, func() { c.startGC() })
+}
+
+// StartAndGC starts GC routine based on config string settings.
+func (c *MemoryCacher) StartAndGC(opt Options) error {
+	c.lock.Lock()
+	c.interval = opt.Interval
+	c.lock.Unlock()
+
+	go c.startGC()
+	return nil
+}
+
+func init() {
+	Register("memory", NewMemoryCacher())
+}

vendor/github.com/go-macaron/cache/redis/redis.go

@@ -0,0 +1,178 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package cache
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/Unknwon/com"
+	"gopkg.in/ini.v1"
+	"gopkg.in/redis.v2"
+
+	"github.com/go-macaron/cache"
+)
+
+// RedisCacher represents a redis cache adapter implementation.
+type RedisCacher struct {
+	c          *redis.Client
+	prefix     string
+	hsetName   string
+	occupyMode bool
+}
+
+// Put puts value into cache with key and expire time.
+// If expired is 0, it lives forever.
+func (c *RedisCacher) Put(key string, val interface{}, expire int64) error {
+	key = c.prefix + key
+	if expire == 0 {
+		if err := c.c.Set(key, com.ToStr(val)).Err(); err != nil {
+			return err
+		}
+	} else {
+		dur, err := time.ParseDuration(com.ToStr(expire) + "s")
+		if err != nil {
+			return err
+		}
+		if err = c.c.SetEx(key, dur, com.ToStr(val)).Err(); err != nil {
+			return err
+		}
+	}
+
+	if c.occupyMode {
+		return nil
+	}
+	return c.c.HSet(c.hsetName, key, "0").Err()
+}
+
+// Get gets cached value by given key.
+func (c *RedisCacher) Get(key string) interface{} {
+	val, err := c.c.Get(c.prefix + key).Result()
+	if err != nil {
+		return nil
+	}
+	return val
+}
+
+// Delete deletes cached value by given key.
+func (c *RedisCacher) Delete(key string) error {
+	key = c.prefix + key
+	if err := c.c.Del(key).Err(); err != nil {
+		return err
+	}
+
+	if c.occupyMode {
+		return nil
+	}
+	return c.c.HDel(c.hsetName, key).Err()
+}
+
+// Incr increases cached int-type value by given key as a counter.
+func (c *RedisCacher) Incr(key string) error {
+	if !c.IsExist(key) {
+		return fmt.Errorf("key '%s' not exist", key)
+	}
+	return c.c.Incr(c.prefix + key).Err()
+}
+
+// Decr decreases cached int-type value by given key as a counter.
+func (c *RedisCacher) Decr(key string) error {
+	if !c.IsExist(key) {
+		return fmt.Errorf("key '%s' not exist", key)
+	}
+	return c.c.Decr(c.prefix + key).Err()
+}
+
+// IsExist returns true if cached value exists.
+func (c *RedisCacher) IsExist(key string) bool {
+	if c.c.Exists(c.prefix + key).Val() {
+		return true
+	}
+
+	if !c.occupyMode {
+		c.c.HDel(c.hsetName, c.prefix+key)
+	}
+	return false
+}
+
+// Flush deletes all cached data.
+func (c *RedisCacher) Flush() error {
+	if c.occupyMode {
+		return c.c.FlushDb().Err()
+	}
+
+	keys, err := c.c.HKeys(c.hsetName).Result()
+	if err != nil {
+		return err
+	}
+	if err = c.c.Del(keys...).Err(); err != nil {
+		return err
+	}
+	return c.c.Del(c.hsetName).Err()
+}
+
+// StartAndGC starts GC routine based on config string settings.
+// AdapterConfig: network=tcp,addr=:6379,password=macaron,db=0,pool_size=100,idle_timeout=180,hset_name=MacaronCache,prefix=cache:
+func (c *RedisCacher) StartAndGC(opts cache.Options) error {
+	c.hsetName = "MacaronCache"
+	c.occupyMode = opts.OccupyMode
+
+	cfg, err := ini.Load([]byte(strings.Replace(opts.AdapterConfig, ",", "\n", -1)))
+	if err != nil {
+		return err
+	}
+
+	opt := &redis.Options{
+		Network: "tcp",
+	}
+	for k, v := range cfg.Section("").KeysHash() {
+		switch k {
+		case "network":
+			opt.Network = v
+		case "addr":
+			opt.Addr = v
+		case "password":
+			opt.Password = v
+		case "db":
+			opt.DB = com.StrTo(v).MustInt64()
+		case "pool_size":
+			opt.PoolSize = com.StrTo(v).MustInt()
+		case "idle_timeout":
+			opt.IdleTimeout, err = time.ParseDuration(v + "s")
+			if err != nil {
+				return fmt.Errorf("error parsing idle timeout: %v", err)
+			}
+		case "hset_name":
+			c.hsetName = v
+		case "prefix":
+			c.prefix = v
+		default:
+			return fmt.Errorf("session/redis: unsupported option '%s'", k)
+		}
+	}
+
+	c.c = redis.NewClient(opt)
+	if err = c.c.Ping().Err(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func init() {
+	cache.Register("redis", &RedisCacher{})
+}

vendor/github.com/go-macaron/cache/redis/redis.goconvey

@@ -0,0 +1 @@
+ignore

vendor/github.com/go-macaron/cache/utils.go

@@ -0,0 +1,84 @@
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package cache
+
+import (
+	"bytes"
+	"encoding/gob"
+	"errors"
+)
+
+func EncodeGob(item *Item) ([]byte, error) {
+	buf := bytes.NewBuffer(nil)
+	err := gob.NewEncoder(buf).Encode(item)
+	return buf.Bytes(), err
+}
+
+func DecodeGob(data []byte, out *Item) error {
+	buf := bytes.NewBuffer(data)
+	return gob.NewDecoder(buf).Decode(&out)
+}
+
+func Incr(val interface{}) (interface{}, error) {
+	switch val.(type) {
+	case int:
+		val = val.(int) + 1
+	case int32:
+		val = val.(int32) + 1
+	case int64:
+		val = val.(int64) + 1
+	case uint:
+		val = val.(uint) + 1
+	case uint32:
+		val = val.(uint32) + 1
+	case uint64:
+		val = val.(uint64) + 1
+	default:
+		return val, errors.New("item value is not int-type")
+	}
+	return val, nil
+}
+
+func Decr(val interface{}) (interface{}, error) {
+	switch val.(type) {
+	case int:
+		val = val.(int) - 1
+	case int32:
+		val = val.(int32) - 1
+	case int64:
+		val = val.(int64) - 1
+	case uint:
+		if val.(uint) > 0 {
+			val = val.(uint) - 1
+		} else {
+			return val, errors.New("item value is less than 0")
+		}
+	case uint32:
+		if val.(uint32) > 0 {
+			val = val.(uint32) - 1
+		} else {
+			return val, errors.New("item value is less than 0")
+		}
+	case uint64:
+		if val.(uint64) > 0 {
+			val = val.(uint64) - 1
+		} else {
+			return val, errors.New("item value is less than 0")
+		}
+	default:
+		return val, errors.New("item value is not int-type")
+	}
+	return val, nil
+}

vendor/github.com/go-macaron/captcha/LICENSE

@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright
+owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other entities
+that control, are controlled by, or are under common control with that entity.
+For the purposes of this definition, "control" means (i) the power, direct or
+indirect, to cause the direction or management of such entity, whether by
+contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the
+outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
+permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications, including
+but not limited to software source code, documentation source, and configuration
+files.
+
+"Object" form shall mean any form resulting from mechanical transformation or
+translation of a Source form, including but not limited to compiled object code,
+generated documentation, and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or Object form, made
+available under the License, as indicated by a copyright notice that is included
+in or attached to the work (an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form, that
+is based on (or derived from) the Work and for which the editorial revisions,
+annotations, elaborations, or other modifications represent, as a whole, an
+original work of authorship. For the purposes of this License, Derivative Works
+shall not include works that remain separable from, or merely link (or bind by
+name) to the interfaces of, the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, including the original version
+of the Work and any modifications or additions to that Work or Derivative Works
+thereof, that is intentionally submitted to Licensor for inclusion in the Work
+by the copyright owner or by an individual or Legal Entity authorized to submit
+on behalf of the copyright owner. For the purposes of this definition,
+"submitted" means any form of electronic, verbal, or written communication sent
+to the Licensor or its representatives, including but not limited to
+communication on electronic mailing lists, source code control systems, and
+issue tracking systems that are managed by, or on behalf of, the Licensor for
+the purpose of discussing and improving the Work, but excluding communication
+that is conspicuously marked or otherwise designated in writing by the copyright
+owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
+of whom a Contribution has been received by Licensor and subsequently
+incorporated within the Work.
+
+2. Grant of Copyright License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable copyright license to reproduce, prepare Derivative Works of,
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+Derivative Works in Source or Object form.
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+3. Grant of Patent License.
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+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable (except as stated in this section) patent license to make, have
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+such license applies only to those patent claims licensable by such Contributor
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+Contribution incorporated within the Work constitutes direct or contributory
+patent infringement, then any patent licenses granted to You under this License
+for that Work shall terminate as of the date such litigation is filed.
+
+4. Redistribution.
+
+You may reproduce and distribute copies of the Work or Derivative Works thereof
+in any medium, with or without modifications, and in Source or Object form,
+provided that You meet the following conditions:
+
+You must give any other recipients of the Work or Derivative Works a copy of
+this License; and
+You must cause any modified files to carry prominent notices stating that You
+changed the files; and
+You must retain, in the Source form of any Derivative Works that You distribute,
+all copyright, patent, trademark, and attribution notices from the Source form
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+If the Work includes a "NOTICE" text file as part of its distribution, then any
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+following places: within a NOTICE text file distributed as part of the
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+Works, if and wherever such third-party notices normally appear. The contents of
+the NOTICE file are for informational purposes only and do not modify the
+License. You may add Your own attribution notices within Derivative Works that
+You distribute, alongside or as an addendum to the NOTICE text from the Work,
+provided that such additional attribution notices cannot be construed as
+modifying the License.
+You may add Your own copyright statement to Your modifications and may provide
+additional or different license terms and conditions for use, reproduction, or
+distribution of Your modifications, or for any such Derivative Works as a whole,
+provided Your use, reproduction, and distribution of the Work otherwise complies
+with the conditions stated in this License.
+
+5. Submission of Contributions.
+
+Unless You explicitly state otherwise, any Contribution intentionally submitted
+for inclusion in the Work by You to the Licensor shall be under the terms and
+conditions of this License, without any additional terms or conditions.
+Notwithstanding the above, nothing herein shall supersede or modify the terms of
+any separate license agreement you may have executed with Licensor regarding
+such Contributions.
+
+6. Trademarks.
+
+This License does not grant permission to use the trade names, trademarks,
+service marks, or product names of the Licensor, except as required for
+reasonable and customary use in describing the origin of the Work and
+reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty.
+
+Unless required by applicable law or agreed to in writing, Licensor provides the
+Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
+including, without limitation, any warranties or conditions of TITLE,
+NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are
+solely responsible for determining the appropriateness of using or
+redistributing the Work and assume any risks associated with Your exercise of
+permissions under this License.
+
+8. Limitation of Liability.
+
+In no event and under no legal theory, whether in tort (including negligence),
+contract, or otherwise, unless required by applicable law (such as deliberate
+and grossly negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special, incidental,
+or consequential damages of any character arising as a result of this License or
+out of the use or inability to use the Work (including but not limited to
+damages for loss of goodwill, work stoppage, computer failure or malfunction, or
+any and all other commercial damages or losses), even if such Contributor has
+been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability.
+
+While redistributing the Work or Derivative Works thereof, You may choose to
+offer, and charge a fee for, acceptance of support, warranty, indemnity, or
+other liability obligations and/or rights consistent with this License. However,
+in accepting such obligations, You may act only on Your own behalf and on Your
+sole responsibility, not on behalf of any other Contributor, and only if You
+agree to indemnify, defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason of your
+accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own
+identifying information. (Don't include the brackets!) The text should be
+enclosed in the appropriate comment syntax for the file format. We also
+recommend that a file or class name and description of purpose be included on
+the same "printed page" as the copyright notice for easier identification within
+third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/go-macaron/captcha/README.md

@@ -0,0 +1,16 @@
+# captcha [![Build Status](https://travis-ci.org/go-macaron/captcha.svg?branch=master)](https://travis-ci.org/go-macaron/captcha)
+
+Middleware captcha provides captcha service for [Macaron](https://github.com/go-macaron/macaron).
+
+### Installation
+
+	go get github.com/go-macaron/captcha
+
+## Getting Help
+
+- [API Reference](https://gowalker.org/github.com/go-macaron/captcha)
+- [Documentation](http://go-macaron.com/docs/middlewares/captcha)
+
+## License
+
+This project is under the Apache License, Version 2.0. See the [LICENSE](LICENSE) file for the full license text.

vendor/github.com/go-macaron/captcha/captcha.go

@@ -0,0 +1,241 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+// Package captcha a middleware that provides captcha service for Macaron.
+package captcha
+
+import (
+	"fmt"
+	"html/template"
+	"path"
+	"strings"
+
+	"github.com/Unknwon/com"
+	"github.com/go-macaron/cache"
+	"gopkg.in/macaron.v1"
+)
+
+const _VERSION = "0.1.0"
+
+func Version() string {
+	return _VERSION
+}
+
+var (
+	defaultChars = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
+)
+
+// Captcha represents a captcha service.
+type Captcha struct {
+	store            cache.Cache
+	SubURL           string
+	URLPrefix        string
+	FieldIdName      string
+	FieldCaptchaName string
+	StdWidth         int
+	StdHeight        int
+	ChallengeNums    int
+	Expiration       int64
+	CachePrefix      string
+}
+
+// generate key string
+func (c *Captcha) key(id string) string {
+	return c.CachePrefix + id
+}
+
+// generate rand chars with default chars
+func (c *Captcha) genRandChars() string {
+	return string(com.RandomCreateBytes(c.ChallengeNums, defaultChars...))
+}
+
+// tempalte func for output html
+func (c *Captcha) CreateHtml() template.HTML {
+	value, err := c.CreateCaptcha()
+	if err != nil {
+		panic(fmt.Errorf("fail to create captcha: %v", err))
+	}
+	return template.HTML(fmt.Sprintf(`<input type="hidden" name="%s" value="%s">
+	<a class="captcha" href="javascript:">
+		<img onclick="this.src=('%s%s%s.png?reload='+(new Date()).getTime())" class="captcha-img" src="%s%s%s.png">
+	</a>`, c.FieldIdName, value, c.SubURL, c.URLPrefix, value, c.SubURL, c.URLPrefix, value))
+}
+
+// create a new captcha id
+func (c *Captcha) CreateCaptcha() (string, error) {
+	id := string(com.RandomCreateBytes(15))
+	if err := c.store.Put(c.key(id), c.genRandChars(), c.Expiration); err != nil {
+		return "", err
+	}
+	return id, nil
+}
+
+// verify from a request
+func (c *Captcha) VerifyReq(req macaron.Request) bool {
+	req.ParseForm()
+	return c.Verify(req.Form.Get(c.FieldIdName), req.Form.Get(c.FieldCaptchaName))
+}
+
+// direct verify id and challenge string
+func (c *Captcha) Verify(id string, challenge string) bool {
+	if len(challenge) == 0 || len(id) == 0 {
+		return false
+	}
+
+	var chars string
+
+	key := c.key(id)
+
+	if v, ok := c.store.Get(key).(string); ok {
+		chars = v
+	} else {
+		return false
+	}
+
+	defer c.store.Delete(key)
+
+	if len(chars) != len(challenge) {
+		return false
+	}
+
+	// verify challenge
+	for i, c := range []byte(chars) {
+		if c != challenge[i]-48 {
+			return false
+		}
+	}
+
+	return true
+}
+
+type Options struct {
+	// Suburl path. Default is empty.
+	SubURL string
+	// URL prefix of getting captcha pictures. Default is "/captcha/".
+	URLPrefix string
+	// Hidden input element ID. Default is "captcha_id".
+	FieldIdName string
+	// User input value element name in request form. Default is "captcha".
+	FieldCaptchaName string
+	// Challenge number. Default is 6.
+	ChallengeNums int
+	// Captcha image width. Default is 240.
+	Width int
+	// Captcha image height. Default is 80.
+	Height int
+	// Captcha expiration time in seconds. Default is 600.
+	Expiration int64
+	// Cache key prefix captcha characters. Default is "captcha_".
+	CachePrefix string
+}
+
+func prepareOptions(options []Options) Options {
+	var opt Options
+	if len(options) > 0 {
+		opt = options[0]
+	}
+
+	opt.SubURL = strings.TrimSuffix(opt.SubURL, "/")
+
+	// Defaults.
+	if len(opt.URLPrefix) == 0 {
+		opt.URLPrefix = "/captcha/"
+	} else if opt.URLPrefix[len(opt.URLPrefix)-1] != '/' {
+		opt.URLPrefix += "/"
+	}
+	if len(opt.FieldIdName) == 0 {
+		opt.FieldIdName = "captcha_id"
+	}
+	if len(opt.FieldCaptchaName) == 0 {
+		opt.FieldCaptchaName = "captcha"
+	}
+	if opt.ChallengeNums == 0 {
+		opt.ChallengeNums = 6
+	}
+	if opt.Width == 0 {
+		opt.Width = stdWidth
+	}
+	if opt.Height == 0 {
+		opt.Height = stdHeight
+	}
+	if opt.Expiration == 0 {
+		opt.Expiration = 600
+	}
+	if len(opt.CachePrefix) == 0 {
+		opt.CachePrefix = "captcha_"
+	}
+
+	return opt
+}
+
+// NewCaptcha initializes and returns a captcha with given options.
+func NewCaptcha(opt Options) *Captcha {
+	return &Captcha{
+		SubURL:           opt.SubURL,
+		URLPrefix:        opt.URLPrefix,
+		FieldIdName:      opt.FieldIdName,
+		FieldCaptchaName: opt.FieldCaptchaName,
+		StdWidth:         opt.Width,
+		StdHeight:        opt.Height,
+		ChallengeNums:    opt.ChallengeNums,
+		Expiration:       opt.Expiration,
+		CachePrefix:      opt.CachePrefix,
+	}
+}
+
+// Captchaer is a middleware that maps a captcha.Captcha service into the Macaron handler chain.
+// An single variadic captcha.Options struct can be optionally provided to configure.
+// This should be register after cache.Cacher.
+func Captchaer(options ...Options) macaron.Handler {
+	return func(ctx *macaron.Context, cache cache.Cache) {
+		cpt := NewCaptcha(prepareOptions(options))
+		cpt.store = cache
+
+		if strings.HasPrefix(ctx.Req.URL.Path, cpt.URLPrefix) {
+			var chars string
+			id := path.Base(ctx.Req.URL.Path)
+			if i := strings.Index(id, "."); i > -1 {
+				id = id[:i]
+			}
+			key := cpt.key(id)
+
+			// Reload captcha.
+			if len(ctx.Query("reload")) > 0 {
+				chars = cpt.genRandChars()
+				if err := cpt.store.Put(key, chars, cpt.Expiration); err != nil {
+					ctx.Status(500)
+					ctx.Write([]byte("captcha reload error"))
+					panic(fmt.Errorf("reload captcha: %v", err))
+				}
+			} else {
+				if v, ok := cpt.store.Get(key).(string); ok {
+					chars = v
+				} else {
+					ctx.Status(404)
+					ctx.Write([]byte("captcha not found"))
+					return
+				}
+			}
+
+			if _, err := NewImage([]byte(chars), cpt.StdWidth, cpt.StdHeight).WriteTo(ctx.Resp); err != nil {
+				panic(fmt.Errorf("write captcha: %v", err))
+			}
+			return
+		}
+
+		ctx.Data["Captcha"] = cpt
+		ctx.Map(cpt)
+	}
+}

vendor/github.com/go-macaron/captcha/image.go

@@ -0,0 +1,498 @@
+// Copyright 2013 Beego Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package captcha
+
+import (
+	"bytes"
+	"image"
+	"image/color"
+	"image/png"
+	"io"
+	"math"
+)
+
+const (
+	fontWidth  = 11
+	fontHeight = 18
+	blackChar  = 1
+
+	// Standard width and height of a captcha image.
+	stdWidth  = 240
+	stdHeight = 80
+
+	// Maximum absolute skew factor of a single digit.
+	maxSkew = 0.7
+	// Number of background circles.
+	circleCount = 20
+)
+
+var font = [][]byte{
+	{ // 0
+		0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0,
+		0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+		0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0,
+		0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0,
+		1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1,
+		0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0,
+		0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+		0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0,
+	},
+	{ // 1
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,
+		0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0,
+		0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	},
+	{ // 2
+		0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,
+		0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+		1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0,
+		0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0,
+		0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+		0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0,
+		0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	},
+	{ // 3
+		0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+		1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0,
+		0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0,
+		0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1,
+		1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+		0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
+	},
+	{ // 4
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0,
+		0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0,
+		0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0,
+		0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0,
+		0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0,
+		0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0,
+		0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0,
+		1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0,
+		1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0,
+	},
+	{ // 5
+		0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
+		0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
+		0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
+		0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+		0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0,
+	},
+	{ // 6
+		0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0,
+		0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0,
+		0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+		0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
+		0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+		1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0,
+		1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0,
+		1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0,
+		1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1,
+		0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0,
+		0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+		0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0,
+	},
+	{ // 7
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0,
+		0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0,
+		0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0,
+		0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0,
+		0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0,
+		0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0,
+		0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+	},
+	{ // 8
+		0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0,
+		0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0,
+		0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1,
+		0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+		0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0,
+		0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0,
+		0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0,
+		1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
+		0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0,
+	},
+	{ // 9
+		0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0,
+		0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0,
+		0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0,
+		1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1,
+		0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1,
+		0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1,
+		0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0,
+		0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0,
+		0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
+		0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
+	},
+}
+
+type Image struct {
+	*image.Paletted
+	numWidth  int
+	numHeight int
+	dotSize   int
+}
+
+var prng = &siprng{}
+
+// randIntn returns a pseudorandom non-negative int in range [0, n).
+func randIntn(n int) int {
+	return prng.Intn(n)
+}
+
+// randInt returns a pseudorandom int in range [from, to].
+func randInt(from, to int) int {
+	return prng.Intn(to+1-from) + from
+}
+
+// randFloat returns a pseudorandom float64 in range [from, to].
+func randFloat(from, to float64) float64 {
+	return (to-from)*prng.Float64() + from
+}
+
+func randomPalette() color.Palette {
+	p := make([]color.Color, circleCount+1)
+	// Transparent color.
+	p[0] = color.RGBA{0xFF, 0xFF, 0xFF, 0x00}
+	// Primary color.
+	prim := color.RGBA{
+		uint8(randIntn(129)),
+		uint8(randIntn(129)),
+		uint8(randIntn(129)),
+		0xFF,
+	}
+	p[1] = prim
+	// Circle colors.
+	for i := 2; i <= circleCount; i++ {
+		p[i] = randomBrightness(prim, 255)
+	}
+	return p
+}
+
+// NewImage returns a new captcha image of the given width and height with the
+// given digits, where each digit must be in range 0-9.
+func NewImage(digits []byte, width, height int) *Image {
+	m := new(Image)
+	m.Paletted = image.NewPaletted(image.Rect(0, 0, width, height), randomPalette())
+	m.calculateSizes(width, height, len(digits))
+	// Randomly position captcha inside the image.
+	maxx := width - (m.numWidth+m.dotSize)*len(digits) - m.dotSize
+	maxy := height - m.numHeight - m.dotSize*2
+	var border int
+	if width > height {
+		border = height / 5
+	} else {
+		border = width / 5
+	}
+	x := randInt(border, maxx-border)
+	y := randInt(border, maxy-border)
+	// Draw digits.
+	for _, n := range digits {
+		m.drawDigit(font[n], x, y)
+		x += m.numWidth + m.dotSize
+	}
+	// Draw strike-through line.
+	m.strikeThrough()
+	// Apply wave distortion.
+	m.distort(randFloat(5, 10), randFloat(100, 200))
+	// Fill image with random circles.
+	m.fillWithCircles(circleCount, m.dotSize)
+	return m
+}
+
+// encodedPNG encodes an image to PNG and returns
+// the result as a byte slice.
+func (m *Image) encodedPNG() []byte {
+	var buf bytes.Buffer
+	if err := png.Encode(&buf, m.Paletted); err != nil {
+		panic(err.Error())
+	}
+	return buf.Bytes()
+}
+
+// WriteTo writes captcha image in PNG format into the given writer.
+func (m *Image) WriteTo(w io.Writer) (int64, error) {
+	n, err := w.Write(m.encodedPNG())
+	return int64(n), err
+}
+
+func (m *Image) calculateSizes(width, height, ncount int) {
+	// Goal: fit all digits inside the image.
+	var border int
+	if width > height {
+		border = height / 4
+	} else {
+		border = width / 4
+	}
+	// Convert everything to floats for calculations.
+	w := float64(width - border*2)
+	h := float64(height - border*2)
+	// fw takes into account 1-dot spacing between digits.
+	fw := float64(fontWidth + 1)
+	fh := float64(fontHeight)
+	nc := float64(ncount)
+	// Calculate the width of a single digit taking into account only the
+	// width of the image.
+	nw := w / nc
+	// Calculate the height of a digit from this width.
+	nh := nw * fh / fw
+	// Digit too high?
+	if nh > h {
+		// Fit digits based on height.
+		nh = h
+		nw = fw / fh * nh
+	}
+	// Calculate dot size.
+	m.dotSize = int(nh / fh)
+	// Save everything, making the actual width smaller by 1 dot to account
+	// for spacing between digits.
+	m.numWidth = int(nw) - m.dotSize
+	m.numHeight = int(nh)
+}
+
+func (m *Image) drawHorizLine(fromX, toX, y int, colorIdx uint8) {
+	for x := fromX; x <= toX; x++ {
+		m.SetColorIndex(x, y, colorIdx)
+	}
+}
+
+func (m *Image) drawCircle(x, y, radius int, colorIdx uint8) {
+	f := 1 - radius
+	dfx := 1
+	dfy := -2 * radius
+	xo := 0
+	yo := radius
+
+	m.SetColorIndex(x, y+radius, colorIdx)
+	m.SetColorIndex(x, y-radius, colorIdx)
+	m.drawHorizLine(x-radius, x+radius, y, colorIdx)
+
+	for xo < yo {
+		if f >= 0 {
+			yo--
+			dfy += 2
+			f += dfy
+		}
+		xo++
+		dfx += 2
+		f += dfx
+		m.drawHorizLine(x-xo, x+xo, y+yo, colorIdx)
+		m.drawHorizLine(x-xo, x+xo, y-yo, colorIdx)
+		m.drawHorizLine(x-yo, x+yo, y+xo, colorIdx)
+		m.drawHorizLine(x-yo, x+yo, y-xo, colorIdx)
+	}
+}
+
+func (m *Image) fillWithCircles(n, maxradius int) {
+	maxx := m.Bounds().Max.X
+	maxy := m.Bounds().Max.Y
+	for i := 0; i < n; i++ {
+		colorIdx := uint8(randInt(1, circleCount-1))
+		r := randInt(1, maxradius)
+		m.drawCircle(randInt(r, maxx-r), randInt(r, maxy-r), r, colorIdx)
+	}
+}
+
+func (m *Image) strikeThrough() {
+	maxx := m.Bounds().Max.X
+	maxy := m.Bounds().Max.Y
+	y := randInt(maxy/3, maxy-maxy/3)
+	amplitude := randFloat(5, 20)
+	period := randFloat(80, 180)
+	dx := 2.0 * math.Pi / period
+	for x := 0; x < maxx; x++ {
+		xo := amplitude * math.Cos(float64(y)*dx)
+		yo := amplitude * math.Sin(float64(x)*dx)
+		for yn := 0; yn < m.dotSize; yn++ {
+			r := randInt(0, m.dotSize)
+			m.drawCircle(x+int(xo), y+int(yo)+(yn*m.dotSize), r/2, 1)
+		}
+	}
+}
+
+func (m *Image) drawDigit(digit []byte, x, y int) {
+	skf := randFloat(-maxSkew, maxSkew)
+	xs := float64(x)
+	r := m.dotSize / 2
+	y += randInt(-r, r)
+	for yo := 0; yo < fontHeight; yo++ {
+		for xo := 0; xo < fontWidth; xo++ {
+			if digit[yo*fontWidth+xo] != blackChar {
+				continue
+			}
+			m.drawCircle(x+xo*m.dotSize, y+yo*m.dotSize, r, 1)
+		}
+		xs += skf
+		x = int(xs)
+	}
+}
+
+func (m *Image) distort(amplude float64, period float64) {
+	w := m.Bounds().Max.X
+	h := m.Bounds().Max.Y
+
+	oldm := m.Paletted
+	newm := image.NewPaletted(image.Rect(0, 0, w, h), oldm.Palette)
+
+	dx := 2.0 * math.Pi / period
+	for x := 0; x < w; x++ {
+		for y := 0; y < h; y++ {
+			xo := amplude * math.Sin(float64(y)*dx)
+			yo := amplude * math.Cos(float64(x)*dx)
+			newm.SetColorIndex(x, y, oldm.ColorIndexAt(x+int(xo), y+int(yo)))
+		}
+	}
+	m.Paletted = newm
+}
+
+func randomBrightness(c color.RGBA, max uint8) color.RGBA {
+	minc := min3(c.R, c.G, c.B)
+	maxc := max3(c.R, c.G, c.B)
+	if maxc > max {
+		return c
+	}
+	n := randIntn(int(max-maxc)) - int(minc)
+	return color.RGBA{
+		uint8(int(c.R) + n),
+		uint8(int(c.G) + n),
+		uint8(int(c.B) + n),
+		uint8(c.A),
+	}
+}
+
+func min3(x, y, z uint8) (m uint8) {
+	m = x
+	if y < m {
+		m = y
+	}
+	if z < m {
+		m = z
+	}
+	return
+}
+
+func max3(x, y, z uint8) (m uint8) {
+	m = x
+	if y > m {
+		m = y
+	}
+	if z > m {
+		m = z
+	}
+	return
+}

vendor/github.com/go-macaron/captcha/siprng.go

@@ -0,0 +1,277 @@
+// Copyright 2013 Beego Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package captcha
+
+import (
+	"crypto/rand"
+	"encoding/binary"
+	"io"
+	"sync"
+)
+
+// siprng is PRNG based on SipHash-2-4.
+type siprng struct {
+	mu          sync.Mutex
+	k0, k1, ctr uint64
+}
+
+// siphash implements SipHash-2-4, accepting a uint64 as a message.
+func siphash(k0, k1, m uint64) uint64 {
+	// Initialization.
+	v0 := k0 ^ 0x736f6d6570736575
+	v1 := k1 ^ 0x646f72616e646f6d
+	v2 := k0 ^ 0x6c7967656e657261
+	v3 := k1 ^ 0x7465646279746573
+	t := uint64(8) << 56
+
+	// Compression.
+	v3 ^= m
+
+	// Round 1.
+	v0 += v1
+	v1 = v1<<13 | v1>>(64-13)
+	v1 ^= v0
+	v0 = v0<<32 | v0>>(64-32)
+
+	v2 += v3
+	v3 = v3<<16 | v3>>(64-16)
+	v3 ^= v2
+
+	v0 += v3
+	v3 = v3<<21 | v3>>(64-21)
+	v3 ^= v0
+
+	v2 += v1
+	v1 = v1<<17 | v1>>(64-17)
+	v1 ^= v2
+	v2 = v2<<32 | v2>>(64-32)
+
+	// Round 2.
+	v0 += v1
+	v1 = v1<<13 | v1>>(64-13)
+	v1 ^= v0
+	v0 = v0<<32 | v0>>(64-32)
+
+	v2 += v3
+	v3 = v3<<16 | v3>>(64-16)
+	v3 ^= v2
+
+	v0 += v3
+	v3 = v3<<21 | v3>>(64-21)
+	v3 ^= v0
+
+	v2 += v1
+	v1 = v1<<17 | v1>>(64-17)
+	v1 ^= v2
+	v2 = v2<<32 | v2>>(64-32)
+
+	v0 ^= m
+
+	// Compress last block.
+	v3 ^= t
+
+	// Round 1.
+	v0 += v1
+	v1 = v1<<13 | v1>>(64-13)
+	v1 ^= v0
+	v0 = v0<<32 | v0>>(64-32)
+
+	v2 += v3
+	v3 = v3<<16 | v3>>(64-16)
+	v3 ^= v2
+
+	v0 += v3
+	v3 = v3<<21 | v3>>(64-21)
+	v3 ^= v0
+
+	v2 += v1
+	v1 = v1<<17 | v1>>(64-17)
+	v1 ^= v2
+	v2 = v2<<32 | v2>>(64-32)
+
+	// Round 2.
+	v0 += v1
+	v1 = v1<<13 | v1>>(64-13)
+	v1 ^= v0
+	v0 = v0<<32 | v0>>(64-32)
+
+	v2 += v3
+	v3 = v3<<16 | v3>>(64-16)
+	v3 ^= v2
+
+	v0 += v3
+	v3 = v3<<21 | v3>>(64-21)
+	v3 ^= v0
+
+	v2 += v1
+	v1 = v1<<17 | v1>>(64-17)
+	v1 ^= v2
+	v2 = v2<<32 | v2>>(64-32)
+
+	v0 ^= t
+
+	// Finalization.
+	v2 ^= 0xff
+
+	// Round 1.
+	v0 += v1
+	v1 = v1<<13 | v1>>(64-13)
+	v1 ^= v0
+	v0 = v0<<32 | v0>>(64-32)
+
+	v2 += v3
+	v3 = v3<<16 | v3>>(64-16)
+	v3 ^= v2
+
+	v0 += v3
+	v3 = v3<<21 | v3>>(64-21)
+	v3 ^= v0
+
+	v2 += v1
+	v1 = v1<<17 | v1>>(64-17)
+	v1 ^= v2
+	v2 = v2<<32 | v2>>(64-32)
+
+	// Round 2.
+	v0 += v1
+	v1 = v1<<13 | v1>>(64-13)
+	v1 ^= v0
+	v0 = v0<<32 | v0>>(64-32)
+
+	v2 += v3
+	v3 = v3<<16 | v3>>(64-16)
+	v3 ^= v2
+
+	v0 += v3
+	v3 = v3<<21 | v3>>(64-21)
+	v3 ^= v0
+
+	v2 += v1
+	v1 = v1<<17 | v1>>(64-17)
+	v1 ^= v2
+	v2 = v2<<32 | v2>>(64-32)
+
+	// Round 3.
+	v0 += v1
+	v1 = v1<<13 | v1>>(64-13)
+	v1 ^= v0
+	v0 = v0<<32 | v0>>(64-32)
+
+	v2 += v3
+	v3 = v3<<16 | v3>>(64-16)
+	v3 ^= v2
+
+	v0 += v3
+	v3 = v3<<21 | v3>>(64-21)
+	v3 ^= v0
+
+	v2 += v1
+	v1 = v1<<17 | v1>>(64-17)
+	v1 ^= v2
+	v2 = v2<<32 | v2>>(64-32)
+
+	// Round 4.
+	v0 += v1
+	v1 = v1<<13 | v1>>(64-13)
+	v1 ^= v0
+	v0 = v0<<32 | v0>>(64-32)
+
+	v2 += v3
+	v3 = v3<<16 | v3>>(64-16)
+	v3 ^= v2
+
+	v0 += v3
+	v3 = v3<<21 | v3>>(64-21)
+	v3 ^= v0
+
+	v2 += v1
+	v1 = v1<<17 | v1>>(64-17)
+	v1 ^= v2
+	v2 = v2<<32 | v2>>(64-32)
+
+	return v0 ^ v1 ^ v2 ^ v3
+}
+
+// rekey sets a new PRNG key, which is read from crypto/rand.
+func (p *siprng) rekey() {
+	var k [16]byte
+	if _, err := io.ReadFull(rand.Reader, k[:]); err != nil {
+		panic(err.Error())
+	}
+	p.k0 = binary.LittleEndian.Uint64(k[0:8])
+	p.k1 = binary.LittleEndian.Uint64(k[8:16])
+	p.ctr = 1
+}
+
+// Uint64 returns a new pseudorandom uint64.
+// It rekeys PRNG on the first call and every 64 MB of generated data.
+func (p *siprng) Uint64() uint64 {
+	p.mu.Lock()
+	if p.ctr == 0 || p.ctr > 8*1024*1024 {
+		p.rekey()
+	}
+	v := siphash(p.k0, p.k1, p.ctr)
+	p.ctr++
+	p.mu.Unlock()
+	return v
+}
+
+func (p *siprng) Int63() int64 {
+	return int64(p.Uint64() & 0x7fffffffffffffff)
+}
+
+func (p *siprng) Uint32() uint32 {
+	return uint32(p.Uint64())
+}
+
+func (p *siprng) Int31() int32 {
+	return int32(p.Uint32() & 0x7fffffff)
+}
+
+func (p *siprng) Intn(n int) int {
+	if n <= 0 {
+		panic("invalid argument to Intn")
+	}
+	if n <= 1<<31-1 {
+		return int(p.Int31n(int32(n)))
+	}
+	return int(p.Int63n(int64(n)))
+}
+
+func (p *siprng) Int63n(n int64) int64 {
+	if n <= 0 {
+		panic("invalid argument to Int63n")
+	}
+	max := int64((1 << 63) - 1 - (1<<63)%uint64(n))
+	v := p.Int63()
+	for v > max {
+		v = p.Int63()
+	}
+	return v % n
+}
+
+func (p *siprng) Int31n(n int32) int32 {
+	if n <= 0 {
+		panic("invalid argument to Int31n")
+	}
+	max := int32((1 << 31) - 1 - (1<<31)%uint32(n))
+	v := p.Int31()
+	for v > max {
+		v = p.Int31()
+	}
+	return v % n
+}
+
+func (p *siprng) Float64() float64 { return float64(p.Int63()) / (1 << 63) }

vendor/github.com/go-macaron/csrf/LICENSE

@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
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+
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+contract, or otherwise, unless required by applicable law (such as deliberate
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+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
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+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/go-macaron/csrf/README.md

@@ -0,0 +1,18 @@
+# csrf [![Build Status](https://travis-ci.org/go-macaron/csrf.svg?branch=master)](https://travis-ci.org/go-macaron/csrf) [![](http://gocover.io/_badge/github.com/go-macaron/csrf)](http://gocover.io/github.com/go-macaron/csrf)
+
+Middleware csrf generates and validates CSRF tokens for [Macaron](https://github.com/go-macaron/macaron).
+
+[API Reference](https://gowalker.org/github.com/go-macaron/csrf)
+
+### Installation
+
+	go get github.com/go-macaron/csrf
+	
+## Getting Help
+
+- [API Reference](https://gowalker.org/github.com/go-macaron/csrf)
+- [Documentation](http://go-macaron.com/docs/middlewares/csrf)
+
+## License
+
+This project is under the Apache License, Version 2.0. See the [LICENSE](LICENSE) file for the full license text.

vendor/github.com/go-macaron/csrf/csrf.go

@@ -0,0 +1,251 @@
+// Copyright 2013 Martini Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+// Package csrf is a middleware that generates and validates CSRF tokens for Macaron.
+package csrf
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/Unknwon/com"
+	"github.com/go-macaron/session"
+	"gopkg.in/macaron.v1"
+)
+
+const _VERSION = "0.1.0"
+
+func Version() string {
+	return _VERSION
+}
+
+// CSRF represents a CSRF service and is used to get the current token and validate a suspect token.
+type CSRF interface {
+	// Return HTTP header to search for token.
+	GetHeaderName() string
+	// Return form value to search for token.
+	GetFormName() string
+	// Return cookie name to search for token.
+	GetCookieName() string
+	// Return cookie path
+	GetCookiePath() string
+	// Return the token.
+	GetToken() string
+	// Validate by token.
+	ValidToken(t string) bool
+	// Error replies to the request with a custom function when ValidToken fails.
+	Error(w http.ResponseWriter)
+}
+
+type csrf struct {
+	// Header name value for setting and getting csrf token.
+	Header string
+	// Form name value for setting and getting csrf token.
+	Form string
+	// Cookie name value for setting and getting csrf token.
+	Cookie string
+	//Cookie path
+	CookiePath string
+	// Token generated to pass via header, cookie, or hidden form value.
+	Token string
+	// This value must be unique per user.
+	ID string
+	// Secret used along with the unique id above to generate the Token.
+	Secret string
+	// ErrorFunc is the custom function that replies to the request when ValidToken fails.
+	ErrorFunc func(w http.ResponseWriter)
+}
+
+// GetHeaderName returns the name of the HTTP header for csrf token.
+func (c *csrf) GetHeaderName() string {
+	return c.Header
+}
+
+// GetFormName returns the name of the form value for csrf token.
+func (c *csrf) GetFormName() string {
+	return c.Form
+}
+
+// GetCookieName returns the name of the cookie for csrf token.
+func (c *csrf) GetCookieName() string {
+	return c.Cookie
+}
+
+// GetCookiePath returns the path of the cookie for csrf token.
+func (c *csrf) GetCookiePath() string {
+	return c.CookiePath
+}
+
+// GetToken returns the current token. This is typically used
+// to populate a hidden form in an HTML template.
+func (c *csrf) GetToken() string {
+	return c.Token
+}
+
+// ValidToken validates the passed token against the existing Secret and ID.
+func (c *csrf) ValidToken(t string) bool {
+	return ValidToken(t, c.Secret, c.ID, "POST")
+}
+
+// Error replies to the request when ValidToken fails.
+func (c *csrf) Error(w http.ResponseWriter) {
+	c.ErrorFunc(w)
+}
+
+// Options maintains options to manage behavior of Generate.
+type Options struct {
+	// The global secret value used to generate Tokens.
+	Secret string
+	// HTTP header used to set and get token.
+	Header string
+	// Form value used to set and get token.
+	Form string
+	// Cookie value used to set and get token.
+	Cookie string
+	// Cookie path.
+	CookiePath string
+	// Key used for getting the unique ID per user.
+	SessionKey string
+	// oldSeesionKey saves old value corresponding to SessionKey.
+	oldSeesionKey string
+	// If true, send token via X-CSRFToken header.
+	SetHeader bool
+	// If true, send token via _csrf cookie.
+	SetCookie bool
+	// Set the Secure flag to true on the cookie.
+	Secure bool
+	// Disallow Origin appear in request header.
+	Origin bool
+	// The function called when Validate fails.
+	ErrorFunc func(w http.ResponseWriter)
+}
+
+func prepareOptions(options []Options) Options {
+	var opt Options
+	if len(options) > 0 {
+		opt = options[0]
+	}
+
+	// Defaults.
+	if len(opt.Secret) == 0 {
+		opt.Secret = string(com.RandomCreateBytes(10))
+	}
+	if len(opt.Header) == 0 {
+		opt.Header = "X-CSRFToken"
+	}
+	if len(opt.Form) == 0 {
+		opt.Form = "_csrf"
+	}
+	if len(opt.Cookie) == 0 {
+		opt.Cookie = "_csrf"
+	}
+	if len(opt.CookiePath) == 0 {
+		opt.CookiePath = "/"
+	}
+	if len(opt.SessionKey) == 0 {
+		opt.SessionKey = "uid"
+	}
+	opt.oldSeesionKey = "_old_" + opt.SessionKey
+	if opt.ErrorFunc == nil {
+		opt.ErrorFunc = func(w http.ResponseWriter) {
+			http.Error(w, "Invalid csrf token.", http.StatusBadRequest)
+		}
+	}
+
+	return opt
+}
+
+// Generate maps CSRF to each request. If this request is a Get request, it will generate a new token.
+// Additionally, depending on options set, generated tokens will be sent via Header and/or Cookie.
+func Generate(options ...Options) macaron.Handler {
+	opt := prepareOptions(options)
+	return func(ctx *macaron.Context, sess session.Store) {
+		x := &csrf{
+			Secret:     opt.Secret,
+			Header:     opt.Header,
+			Form:       opt.Form,
+			Cookie:     opt.Cookie,
+			CookiePath: opt.CookiePath,
+			ErrorFunc:  opt.ErrorFunc,
+		}
+		ctx.MapTo(x, (*CSRF)(nil))
+
+		if opt.Origin && len(ctx.Req.Header.Get("Origin")) > 0 {
+			return
+		}
+
+		x.ID = "0"
+		uid := sess.Get(opt.SessionKey)
+		if uid != nil {
+			x.ID = com.ToStr(uid)
+		}
+
+		needsNew := false
+		oldUid := sess.Get(opt.oldSeesionKey)
+		if oldUid == nil || oldUid.(string) != x.ID {
+			needsNew = true
+			sess.Set(opt.oldSeesionKey, x.ID)
+		} else {
+			// If cookie present, map existing token, else generate a new one.
+			if val := ctx.GetCookie(opt.Cookie); len(val) > 0 {
+				// FIXME: test coverage.
+				x.Token = val
+			} else {
+				needsNew = true
+			}
+		}
+
+		if needsNew {
+			// FIXME: actionId.
+			x.Token = GenerateToken(x.Secret, x.ID, "POST")
+			if opt.SetCookie {
+				ctx.SetCookie(opt.Cookie, x.Token, 0, opt.CookiePath, "", false, true, time.Now().AddDate(0, 0, 1))
+			}
+		}
+
+		if opt.SetHeader {
+			ctx.Resp.Header().Add(opt.Header, x.Token)
+		}
+	}
+}
+
+// Csrfer maps CSRF to each request. If this request is a Get request, it will generate a new token.
+// Additionally, depending on options set, generated tokens will be sent via Header and/or Cookie.
+func Csrfer(options ...Options) macaron.Handler {
+	return Generate(options...)
+}
+
+// Validate should be used as a per route middleware. It attempts to get a token from a "X-CSRFToken"
+// HTTP header and then a "_csrf" form value. If one of these is found, the token will be validated
+// using ValidToken. If this validation fails, custom Error is sent in the reply.
+// If neither a header or form value is found, http.StatusBadRequest is sent.
+func Validate(ctx *macaron.Context, x CSRF) {
+	if token := ctx.Req.Header.Get(x.GetHeaderName()); len(token) > 0 {
+		if !x.ValidToken(token) {
+			ctx.SetCookie(x.GetCookieName(), "", -1, x.GetCookiePath())
+			x.Error(ctx.Resp)
+		}
+		return
+	}
+	if token := ctx.Req.FormValue(x.GetFormName()); len(token) > 0 {
+		if !x.ValidToken(token) {
+			ctx.SetCookie(x.GetCookieName(), "", -1, x.GetCookiePath())
+			x.Error(ctx.Resp)
+		}
+		return
+	}
+
+	http.Error(ctx.Resp, "Bad Request: no CSRF token present", http.StatusBadRequest)
+}

vendor/github.com/go-macaron/csrf/xsrf.go

@@ -0,0 +1,97 @@
+// Copyright 2012 Google Inc. All Rights Reserved.
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package csrf
+
+import (
+	"bytes"
+	"crypto/hmac"
+	"crypto/sha1"
+	"crypto/subtle"
+	"encoding/base64"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// The duration that XSRF tokens are valid.
+// It is exported so clients may set cookie timeouts that match generated tokens.
+const TIMEOUT = 24 * time.Hour
+
+// clean sanitizes a string for inclusion in a token by replacing all ":"s.
+func clean(s string) string {
+	return strings.Replace(s, ":", "_", -1)
+}
+
+// GenerateToken returns a URL-safe secure XSRF token that expires in 24 hours.
+//
+// key is a secret key for your application.
+// userID is a unique identifier for the user.
+// actionID is the action the user is taking (e.g. POSTing to a particular path).
+func GenerateToken(key, userID, actionID string) string {
+	return generateTokenAtTime(key, userID, actionID, time.Now())
+}
+
+// generateTokenAtTime is like Generate, but returns a token that expires 24 hours from now.
+func generateTokenAtTime(key, userID, actionID string, now time.Time) string {
+	h := hmac.New(sha1.New, []byte(key))
+	fmt.Fprintf(h, "%s:%s:%d", clean(userID), clean(actionID), now.UnixNano())
+	tok := fmt.Sprintf("%s:%d", h.Sum(nil), now.UnixNano())
+	return base64.URLEncoding.EncodeToString([]byte(tok))
+}
+
+// Valid returns true if token is a valid, unexpired token returned by Generate.
+func ValidToken(token, key, userID, actionID string) bool {
+	return validTokenAtTime(token, key, userID, actionID, time.Now())
+}
+
+// validTokenAtTime is like Valid, but it uses now to check if the token is expired.
+func validTokenAtTime(token, key, userID, actionID string, now time.Time) bool {
+	// Decode the token.
+	data, err := base64.URLEncoding.DecodeString(token)
+	if err != nil {
+		return false
+	}
+
+	// Extract the issue time of the token.
+	sep := bytes.LastIndex(data, []byte{':'})
+	if sep < 0 {
+		return false
+	}
+	nanos, err := strconv.ParseInt(string(data[sep+1:]), 10, 64)
+	if err != nil {
+		return false
+	}
+	issueTime := time.Unix(0, nanos)
+
+	// Check that the token is not expired.
+	if now.Sub(issueTime) >= TIMEOUT {
+		return false
+	}
+
+	// Check that the token is not from the future.
+	// Allow 1 minute grace period in case the token is being verified on a
+	// machine whose clock is behind the machine that issued the token.
+	if issueTime.After(now.Add(1 * time.Minute)) {
+		return false
+	}
+
+	expected := generateTokenAtTime(key, userID, actionID, issueTime)
+
+	// Check that the token matches the expected value.
+	// Use constant time comparison to avoid timing attacks.
+	return subtle.ConstantTimeCompare([]byte(token), []byte(expected)) == 1
+}

vendor/github.com/go-macaron/gzip/LICENSE

@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright
+owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other entities
+that control, are controlled by, or are under common control with that entity.
+For the purposes of this definition, "control" means (i) the power, direct or
+indirect, to cause the direction or management of such entity, whether by
+contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the
+outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
+permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications, including
+but not limited to software source code, documentation source, and configuration
+files.
+
+"Object" form shall mean any form resulting from mechanical transformation or
+translation of a Source form, including but not limited to compiled object code,
+generated documentation, and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or Object form, made
+available under the License, as indicated by a copyright notice that is included
+in or attached to the work (an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form, that
+is based on (or derived from) the Work and for which the editorial revisions,
+annotations, elaborations, or other modifications represent, as a whole, an
+original work of authorship. For the purposes of this License, Derivative Works
+shall not include works that remain separable from, or merely link (or bind by
+name) to the interfaces of, the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, including the original version
+of the Work and any modifications or additions to that Work or Derivative Works
+thereof, that is intentionally submitted to Licensor for inclusion in the Work
+by the copyright owner or by an individual or Legal Entity authorized to submit
+on behalf of the copyright owner. For the purposes of this definition,
+"submitted" means any form of electronic, verbal, or written communication sent
+to the Licensor or its representatives, including but not limited to
+communication on electronic mailing lists, source code control systems, and
+issue tracking systems that are managed by, or on behalf of, the Licensor for
+the purpose of discussing and improving the Work, but excluding communication
+that is conspicuously marked or otherwise designated in writing by the copyright
+owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
+of whom a Contribution has been received by Licensor and subsequently
+incorporated within the Work.
+
+2. Grant of Copyright License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable copyright license to reproduce, prepare Derivative Works of,
+publicly display, publicly perform, sublicense, and distribute the Work and such
+Derivative Works in Source or Object form.
+
+3. Grant of Patent License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable (except as stated in this section) patent license to make, have
+made, use, offer to sell, sell, import, and otherwise transfer the Work, where
+such license applies only to those patent claims licensable by such Contributor
+that are necessarily infringed by their Contribution(s) alone or by combination
+of their Contribution(s) with the Work to which such Contribution(s) was
+submitted. If You institute patent litigation against any entity (including a
+cross-claim or counterclaim in a lawsuit) alleging that the Work or a
+Contribution incorporated within the Work constitutes direct or contributory
+patent infringement, then any patent licenses granted to You under this License
+for that Work shall terminate as of the date such litigation is filed.
+
+4. Redistribution.
+
+You may reproduce and distribute copies of the Work or Derivative Works thereof
+in any medium, with or without modifications, and in Source or Object form,
+provided that You meet the following conditions:
+
+You must give any other recipients of the Work or Derivative Works a copy of
+this License; and
+You must cause any modified files to carry prominent notices stating that You
+changed the files; and
+You must retain, in the Source form of any Derivative Works that You distribute,
+all copyright, patent, trademark, and attribution notices from the Source form
+of the Work, excluding those notices that do not pertain to any part of the
+Derivative Works; and
+If the Work includes a "NOTICE" text file as part of its distribution, then any
+Derivative Works that You distribute must include a readable copy of the
+attribution notices contained within such NOTICE file, excluding those notices
+that do not pertain to any part of the Derivative Works, in at least one of the
+following places: within a NOTICE text file distributed as part of the
+Derivative Works; within the Source form or documentation, if provided along
+with the Derivative Works; or, within a display generated by the Derivative
+Works, if and wherever such third-party notices normally appear. The contents of
+the NOTICE file are for informational purposes only and do not modify the
+License. You may add Your own attribution notices within Derivative Works that
+You distribute, alongside or as an addendum to the NOTICE text from the Work,
+provided that such additional attribution notices cannot be construed as
+modifying the License.
+You may add Your own copyright statement to Your modifications and may provide
+additional or different license terms and conditions for use, reproduction, or
+distribution of Your modifications, or for any such Derivative Works as a whole,
+provided Your use, reproduction, and distribution of the Work otherwise complies
+with the conditions stated in this License.
+
+5. Submission of Contributions.
+
+Unless You explicitly state otherwise, any Contribution intentionally submitted
+for inclusion in the Work by You to the Licensor shall be under the terms and
+conditions of this License, without any additional terms or conditions.
+Notwithstanding the above, nothing herein shall supersede or modify the terms of
+any separate license agreement you may have executed with Licensor regarding
+such Contributions.
+
+6. Trademarks.
+
+This License does not grant permission to use the trade names, trademarks,
+service marks, or product names of the Licensor, except as required for
+reasonable and customary use in describing the origin of the Work and
+reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty.
+
+Unless required by applicable law or agreed to in writing, Licensor provides the
+Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
+including, without limitation, any warranties or conditions of TITLE,
+NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are
+solely responsible for determining the appropriateness of using or
+redistributing the Work and assume any risks associated with Your exercise of
+permissions under this License.
+
+8. Limitation of Liability.
+
+In no event and under no legal theory, whether in tort (including negligence),
+contract, or otherwise, unless required by applicable law (such as deliberate
+and grossly negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special, incidental,
+or consequential damages of any character arising as a result of this License or
+out of the use or inability to use the Work (including but not limited to
+damages for loss of goodwill, work stoppage, computer failure or malfunction, or
+any and all other commercial damages or losses), even if such Contributor has
+been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability.
+
+While redistributing the Work or Derivative Works thereof, You may choose to
+offer, and charge a fee for, acceptance of support, warranty, indemnity, or
+other liability obligations and/or rights consistent with this License. However,
+in accepting such obligations, You may act only on Your own behalf and on Your
+sole responsibility, not on behalf of any other Contributor, and only if You
+agree to indemnify, defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason of your
+accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own
+identifying information. (Don't include the brackets!) The text should be
+enclosed in the appropriate comment syntax for the file format. We also
+recommend that a file or class name and description of purpose be included on
+the same "printed page" as the copyright notice for easier identification within
+third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/go-macaron/gzip/README.md

@@ -0,0 +1,20 @@
+# gzip [![Build Status](https://travis-ci.org/go-macaron/gzip.svg?branch=master)](https://travis-ci.org/go-macaron/gzip) [![](http://gocover.io/_badge/github.com/go-macaron/gzip)](http://gocover.io/github.com/go-macaron/gzip)
+
+Middleware gzip provides compress to responses for [Macaron](https://github.com/go-macaron/macaron).
+
+### Installation
+
+	go get github.com/go-macaron/gzip
+
+## Getting Help
+
+- [API Reference](https://gowalker.org/github.com/go-macaron/gzip)
+- [Documentation](http://go-macaron.com/docs/middlewares/gzip)
+
+## Credits
+
+This package is a modified version of [martini-contrib/gzip](https://github.com/martini-contrib/gzip).
+
+## License
+
+This project is under the Apache License, Version 2.0. See the [LICENSE](LICENSE) file for the full license text.

vendor/github.com/go-macaron/gzip/gzip.go

@@ -0,0 +1,121 @@
+// Copyright 2013 Martini Authors
+// Copyright 2015 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package gzip
+
+import (
+	"bufio"
+	"fmt"
+	"net"
+	"net/http"
+	"strings"
+
+	"github.com/klauspost/compress/gzip"
+	"gopkg.in/macaron.v1"
+)
+
+const (
+	_HEADER_ACCEPT_ENCODING  = "Accept-Encoding"
+	_HEADER_CONTENT_ENCODING = "Content-Encoding"
+	_HEADER_CONTENT_LENGTH   = "Content-Length"
+	_HEADER_CONTENT_TYPE     = "Content-Type"
+	_HEADER_VARY             = "Vary"
+)
+
+// Options represents a struct for specifying configuration options for the GZip middleware.
+type Options struct {
+	// Compression level. Can be DefaultCompression(-1), ConstantCompression(-2)
+	// or any integer value between BestSpeed(1) and BestCompression(9) inclusive.
+	CompressionLevel int
+}
+
+func isCompressionLevelValid(level int) bool {
+	return level == gzip.DefaultCompression ||
+		level == gzip.ConstantCompression ||
+		(level >= gzip.BestSpeed && level <= gzip.BestCompression)
+}
+
+func prepareOptions(options []Options) Options {
+	var opt Options
+	if len(options) > 0 {
+		opt = options[0]
+	}
+
+	if !isCompressionLevelValid(opt.CompressionLevel) {
+		// For web content, level 4 seems to be a sweet spot.
+		opt.CompressionLevel = 4
+	}
+	return opt
+}
+
+// Gziper returns a Handler that adds gzip compression to all requests.
+// Make sure to include the Gzip middleware above other middleware
+// that alter the response body (like the render middleware).
+func Gziper(options ...Options) macaron.Handler {
+	opt := prepareOptions(options)
+
+	return func(ctx *macaron.Context) {
+		if !strings.Contains(ctx.Req.Header.Get(_HEADER_ACCEPT_ENCODING), "gzip") {
+			return
+		}
+
+		headers := ctx.Resp.Header()
+		headers.Set(_HEADER_CONTENT_ENCODING, "gzip")
+		headers.Set(_HEADER_VARY, _HEADER_ACCEPT_ENCODING)
+
+		// We've made sure compression level is valid in prepareGzipOptions,
+		// no need to check same error again.
+		gz, err := gzip.NewWriterLevel(ctx.Resp, opt.CompressionLevel)
+		if err != nil {
+			panic(err.Error())
+		}
+		defer gz.Close()
+
+		gzw := gzipResponseWriter{gz, ctx.Resp}
+		ctx.Resp = gzw
+		ctx.MapTo(gzw, (*http.ResponseWriter)(nil))
+
+		// Check if render middleware has been registered,
+		// if yes, we need to modify ResponseWriter for it as well.
+		if _, ok := ctx.Render.(*macaron.DummyRender); !ok {
+			ctx.Render.SetResponseWriter(gzw)
+		}
+
+		ctx.Next()
+
+		// delete content length after we know we have been written to
+		gzw.Header().Del("Content-Length")
+	}
+}
+
+type gzipResponseWriter struct {
+	w *gzip.Writer
+	macaron.ResponseWriter
+}
+
+func (grw gzipResponseWriter) Write(p []byte) (int, error) {
+	if len(grw.Header().Get(_HEADER_CONTENT_TYPE)) == 0 {
+		grw.Header().Set(_HEADER_CONTENT_TYPE, http.DetectContentType(p))
+	}
+	return grw.w.Write(p)
+}
+
+func (grw gzipResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	hijacker, ok := grw.ResponseWriter.(http.Hijacker)
+	if !ok {
+		return nil, nil, fmt.Errorf("the ResponseWriter doesn't support the Hijacker interface")
+	}
+	return hijacker.Hijack()
+}

vendor/github.com/go-macaron/i18n/LICENSE

@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright
+owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other entities
+that control, are controlled by, or are under common control with that entity.
+For the purposes of this definition, "control" means (i) the power, direct or
+indirect, to cause the direction or management of such entity, whether by
+contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the
+outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
+permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications, including
+but not limited to software source code, documentation source, and configuration
+files.
+
+"Object" form shall mean any form resulting from mechanical transformation or
+translation of a Source form, including but not limited to compiled object code,
+generated documentation, and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or Object form, made
+available under the License, as indicated by a copyright notice that is included
+in or attached to the work (an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form, that
+is based on (or derived from) the Work and for which the editorial revisions,
+annotations, elaborations, or other modifications represent, as a whole, an
+original work of authorship. For the purposes of this License, Derivative Works
+shall not include works that remain separable from, or merely link (or bind by
+name) to the interfaces of, the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, including the original version
+of the Work and any modifications or additions to that Work or Derivative Works
+thereof, that is intentionally submitted to Licensor for inclusion in the Work
+by the copyright owner or by an individual or Legal Entity authorized to submit
+on behalf of the copyright owner. For the purposes of this definition,
+"submitted" means any form of electronic, verbal, or written communication sent
+to the Licensor or its representatives, including but not limited to
+communication on electronic mailing lists, source code control systems, and
+issue tracking systems that are managed by, or on behalf of, the Licensor for
+the purpose of discussing and improving the Work, but excluding communication
+that is conspicuously marked or otherwise designated in writing by the copyright
+owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
+of whom a Contribution has been received by Licensor and subsequently
+incorporated within the Work.
+
+2. Grant of Copyright License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable copyright license to reproduce, prepare Derivative Works of,
+publicly display, publicly perform, sublicense, and distribute the Work and such
+Derivative Works in Source or Object form.
+
+3. Grant of Patent License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable (except as stated in this section) patent license to make, have
+made, use, offer to sell, sell, import, and otherwise transfer the Work, where
+such license applies only to those patent claims licensable by such Contributor
+that are necessarily infringed by their Contribution(s) alone or by combination
+of their Contribution(s) with the Work to which such Contribution(s) was
+submitted. If You institute patent litigation against any entity (including a
+cross-claim or counterclaim in a lawsuit) alleging that the Work or a
+Contribution incorporated within the Work constitutes direct or contributory
+patent infringement, then any patent licenses granted to You under this License
+for that Work shall terminate as of the date such litigation is filed.
+
+4. Redistribution.
+
+You may reproduce and distribute copies of the Work or Derivative Works thereof
+in any medium, with or without modifications, and in Source or Object form,
+provided that You meet the following conditions:
+
+You must give any other recipients of the Work or Derivative Works a copy of
+this License; and
+You must cause any modified files to carry prominent notices stating that You
+changed the files; and
+You must retain, in the Source form of any Derivative Works that You distribute,
+all copyright, patent, trademark, and attribution notices from the Source form
+of the Work, excluding those notices that do not pertain to any part of the
+Derivative Works; and
+If the Work includes a "NOTICE" text file as part of its distribution, then any
+Derivative Works that You distribute must include a readable copy of the
+attribution notices contained within such NOTICE file, excluding those notices
+that do not pertain to any part of the Derivative Works, in at least one of the
+following places: within a NOTICE text file distributed as part of the
+Derivative Works; within the Source form or documentation, if provided along
+with the Derivative Works; or, within a display generated by the Derivative
+Works, if and wherever such third-party notices normally appear. The contents of
+the NOTICE file are for informational purposes only and do not modify the
+License. You may add Your own attribution notices within Derivative Works that
+You distribute, alongside or as an addendum to the NOTICE text from the Work,
+provided that such additional attribution notices cannot be construed as
+modifying the License.
+You may add Your own copyright statement to Your modifications and may provide
+additional or different license terms and conditions for use, reproduction, or
+distribution of Your modifications, or for any such Derivative Works as a whole,
+provided Your use, reproduction, and distribution of the Work otherwise complies
+with the conditions stated in this License.
+
+5. Submission of Contributions.
+
+Unless You explicitly state otherwise, any Contribution intentionally submitted
+for inclusion in the Work by You to the Licensor shall be under the terms and
+conditions of this License, without any additional terms or conditions.
+Notwithstanding the above, nothing herein shall supersede or modify the terms of
+any separate license agreement you may have executed with Licensor regarding
+such Contributions.
+
+6. Trademarks.
+
+This License does not grant permission to use the trade names, trademarks,
+service marks, or product names of the Licensor, except as required for
+reasonable and customary use in describing the origin of the Work and
+reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty.
+
+Unless required by applicable law or agreed to in writing, Licensor provides the
+Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
+including, without limitation, any warranties or conditions of TITLE,
+NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are
+solely responsible for determining the appropriateness of using or
+redistributing the Work and assume any risks associated with Your exercise of
+permissions under this License.
+
+8. Limitation of Liability.
+
+In no event and under no legal theory, whether in tort (including negligence),
+contract, or otherwise, unless required by applicable law (such as deliberate
+and grossly negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special, incidental,
+or consequential damages of any character arising as a result of this License or
+out of the use or inability to use the Work (including but not limited to
+damages for loss of goodwill, work stoppage, computer failure or malfunction, or
+any and all other commercial damages or losses), even if such Contributor has
+been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability.
+
+While redistributing the Work or Derivative Works thereof, You may choose to
+offer, and charge a fee for, acceptance of support, warranty, indemnity, or
+other liability obligations and/or rights consistent with this License. However,
+in accepting such obligations, You may act only on Your own behalf and on Your
+sole responsibility, not on behalf of any other Contributor, and only if You
+agree to indemnify, defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason of your
+accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own
+identifying information. (Don't include the brackets!) The text should be
+enclosed in the appropriate comment syntax for the file format. We also
+recommend that a file or class name and description of purpose be included on
+the same "printed page" as the copyright notice for easier identification within
+third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/go-macaron/i18n/README.md

@@ -0,0 +1,16 @@
+# i18n [![Build Status](https://travis-ci.org/go-macaron/i18n.svg?branch=master)](https://travis-ci.org/go-macaron/i18n) [![](http://gocover.io/_badge/github.com/go-macaron/i18n)](http://gocover.io/github.com/go-macaron/i18n)
+
+Middleware i18n provides app Internationalization and Localization for [Macaron](https://github.com/go-macaron/macaron).
+
+### Installation
+
+	go get github.com/go-macaron/i18n
+	
+## Getting Help
+
+- [API Reference](https://gowalker.org/github.com/go-macaron/i18n)
+- [Documentation](http://go-macaron.com/docs/middlewares/i18n)
+
+## License
+
+This project is under the Apache License, Version 2.0. See the [LICENSE](LICENSE) file for the full license text.

vendor/github.com/go-macaron/i18n/i18n.go

@@ -0,0 +1,225 @@
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+// Package i18n is a middleware that provides app Internationalization and Localization of Macaron.
+package i18n
+
+import (
+	"fmt"
+	"path"
+	"strings"
+
+	"github.com/Unknwon/com"
+	"github.com/Unknwon/i18n"
+	"golang.org/x/text/language"
+	"gopkg.in/macaron.v1"
+)
+
+const _VERSION = "0.3.0"
+
+func Version() string {
+	return _VERSION
+}
+
+// initLocales initializes language type list and Accept-Language header matcher.
+func initLocales(opt Options) language.Matcher {
+	tags := make([]language.Tag, len(opt.Langs))
+	for i, lang := range opt.Langs {
+		tags[i] = language.Raw.Make(lang)
+		fname := fmt.Sprintf(opt.Format, lang)
+		// Append custom locale file.
+		custom := []interface{}{}
+		customPath := path.Join(opt.CustomDirectory, fname)
+		if com.IsFile(customPath) {
+			custom = append(custom, customPath)
+		}
+
+		var locale interface{}
+		if data, ok := opt.Files[fname]; ok {
+			locale = data
+		} else {
+			locale = path.Join(opt.Directory, fname)
+		}
+
+		err := i18n.SetMessageWithDesc(lang, opt.Names[i], locale, custom...)
+		if err != nil && err != i18n.ErrLangAlreadyExist {
+			panic(fmt.Errorf("fail to set message file(%s): %v", lang, err))
+		}
+	}
+	return language.NewMatcher(tags)
+}
+
+// A Locale describles the information of localization.
+type Locale struct {
+	i18n.Locale
+}
+
+// Language returns language current locale represents.
+func (l Locale) Language() string {
+	return l.Lang
+}
+
+// Options represents a struct for specifying configuration options for the i18n middleware.
+type Options struct {
+	// Suburl of path. Default is empty.
+	SubURL string
+	// Directory to load locale files. Default is "conf/locale"
+	Directory string
+	// File stores actual data of locale files. Used for in-memory purpose.
+	Files map[string][]byte
+	// Custom directory to overload locale files. Default is "custom/conf/locale"
+	CustomDirectory string
+	// Langauges that will be supported, order is meaningful.
+	Langs []string
+	// Human friendly names corresponding to Langs list.
+	Names []string
+	// Default language locale, leave empty to remain unset.
+	DefaultLang string
+	// Locale file naming style. Default is "locale_%s.ini".
+	Format string
+	// Name of language parameter name in URL. Default is "lang".
+	Parameter string
+	// Redirect when user uses get parameter to specify language.
+	Redirect bool
+	// Name that maps into template variable. Default is "i18n".
+	TmplName string
+	// Configuration section name. Default is "i18n".
+	Section string
+}
+
+func prepareOptions(options []Options) Options {
+	var opt Options
+	if len(options) > 0 {
+		opt = options[0]
+	}
+
+	if len(opt.Section) == 0 {
+		opt.Section = "i18n"
+	}
+	sec := macaron.Config().Section(opt.Section)
+
+	opt.SubURL = strings.TrimSuffix(opt.SubURL, "/")
+
+	if len(opt.Langs) == 0 {
+		opt.Langs = sec.Key("LANGS").Strings(",")
+	}
+	if len(opt.Names) == 0 {
+		opt.Names = sec.Key("NAMES").Strings(",")
+	}
+	if len(opt.Langs) == 0 {
+		panic("no language is specified")
+	} else if len(opt.Langs) != len(opt.Names) {
+		panic("length of langs is not same as length of names")
+	}
+	i18n.SetDefaultLang(opt.DefaultLang)
+
+	if len(opt.Directory) == 0 {
+		opt.Directory = sec.Key("DIRECTORY").MustString("conf/locale")
+	}
+	if len(opt.CustomDirectory) == 0 {
+		opt.CustomDirectory = sec.Key("CUSTOM_DIRECTORY").MustString("custom/conf/locale")
+	}
+	if len(opt.Format) == 0 {
+		opt.Format = sec.Key("FORMAT").MustString("locale_%s.ini")
+	}
+	if len(opt.Parameter) == 0 {
+		opt.Parameter = sec.Key("PARAMETER").MustString("lang")
+	}
+	if !opt.Redirect {
+		opt.Redirect = sec.Key("REDIRECT").MustBool()
+	}
+	if len(opt.TmplName) == 0 {
+		opt.TmplName = sec.Key("TMPL_NAME").MustString("i18n")
+	}
+
+	return opt
+}
+
+type LangType struct {
+	Lang, Name string
+}
+
+// I18n is a middleware provides localization layer for your application.
+// Paramenter langs must be in the form of "en-US", "zh-CN", etc.
+// Otherwise it may not recognize browser input.
+func I18n(options ...Options) macaron.Handler {
+	opt := prepareOptions(options)
+	m := initLocales(opt)
+	return func(ctx *macaron.Context) {
+		isNeedRedir := false
+		hasCookie := false
+
+		// 1. Check URL arguments.
+		lang := ctx.Query(opt.Parameter)
+
+		// 2. Get language information from cookies.
+		if len(lang) == 0 {
+			lang = ctx.GetCookie("lang")
+			hasCookie = true
+		} else {
+			isNeedRedir = true
+		}
+
+		// Check again in case someone modify by purpose.
+		if !i18n.IsExist(lang) {
+			lang = ""
+			isNeedRedir = false
+			hasCookie = false
+		}
+
+		// 3. Get language information from 'Accept-Language'.
+		// The first element in the list is chosen to be the default language automatically.
+		if len(lang) == 0 {
+			tags, _, _ := language.ParseAcceptLanguage(ctx.Req.Header.Get("Accept-Language"))
+			tag, _, _ := m.Match(tags...)
+			lang = tag.String()
+			isNeedRedir = false
+		}
+
+		curLang := LangType{
+			Lang: lang,
+		}
+
+		// Save language information in cookies.
+		if !hasCookie {
+			ctx.SetCookie("lang", curLang.Lang, 1<<31-1, "/"+strings.TrimPrefix(opt.SubURL, "/"))
+		}
+
+		restLangs := make([]LangType, 0, i18n.Count()-1)
+		langs := i18n.ListLangs()
+		names := i18n.ListLangDescs()
+		for i, v := range langs {
+			if lang != v {
+				restLangs = append(restLangs, LangType{v, names[i]})
+			} else {
+				curLang.Name = names[i]
+			}
+		}
+
+		// Set language properties.
+		locale := Locale{i18n.Locale{lang}}
+		ctx.Map(locale)
+		ctx.Locale = locale
+		ctx.Data[opt.TmplName] = locale
+		ctx.Data["Tr"] = i18n.Tr
+		ctx.Data["Lang"] = locale.Lang
+		ctx.Data["LangName"] = curLang.Name
+		ctx.Data["AllLangs"] = append([]LangType{curLang}, restLangs...)
+		ctx.Data["RestLangs"] = restLangs
+
+		if opt.Redirect && isNeedRedir {
+			ctx.Redirect(opt.SubURL + ctx.Req.RequestURI[:strings.Index(ctx.Req.RequestURI, "?")])
+		}
+	}
+}

vendor/github.com/go-macaron/inject/LICENSE

@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright
+owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other entities
+that control, are controlled by, or are under common control with that entity.
+For the purposes of this definition, "control" means (i) the power, direct or
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+contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the
+outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
+permissions granted by this License.
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+"Source" form shall mean the preferred form for making modifications, including
+but not limited to software source code, documentation source, and configuration
+files.
+
+"Object" form shall mean any form resulting from mechanical transformation or
+translation of a Source form, including but not limited to compiled object code,
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+
+"Work" shall mean the work of authorship, whether in Source or Object form, made
+available under the License, as indicated by a copyright notice that is included
+in or attached to the work (an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form, that
+is based on (or derived from) the Work and for which the editorial revisions,
+annotations, elaborations, or other modifications represent, as a whole, an
+original work of authorship. For the purposes of this License, Derivative Works
+shall not include works that remain separable from, or merely link (or bind by
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+
+"Contribution" shall mean any work of authorship, including the original version
+of the Work and any modifications or additions to that Work or Derivative Works
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+owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
+of whom a Contribution has been received by Licensor and subsequently
+incorporated within the Work.
+
+2. Grant of Copyright License.
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+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
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+provided that You meet the following conditions:
+
+You must give any other recipients of the Work or Derivative Works a copy of
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+You must cause any modified files to carry prominent notices stating that You
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+following places: within a NOTICE text file distributed as part of the
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+Works, if and wherever such third-party notices normally appear. The contents of
+the NOTICE file are for informational purposes only and do not modify the
+License. You may add Your own attribution notices within Derivative Works that
+You distribute, alongside or as an addendum to the NOTICE text from the Work,
+provided that such additional attribution notices cannot be construed as
+modifying the License.
+You may add Your own copyright statement to Your modifications and may provide
+additional or different license terms and conditions for use, reproduction, or
+distribution of Your modifications, or for any such Derivative Works as a whole,
+provided Your use, reproduction, and distribution of the Work otherwise complies
+with the conditions stated in this License.
+
+5. Submission of Contributions.
+
+Unless You explicitly state otherwise, any Contribution intentionally submitted
+for inclusion in the Work by You to the Licensor shall be under the terms and
+conditions of this License, without any additional terms or conditions.
+Notwithstanding the above, nothing herein shall supersede or modify the terms of
+any separate license agreement you may have executed with Licensor regarding
+such Contributions.
+
+6. Trademarks.
+
+This License does not grant permission to use the trade names, trademarks,
+service marks, or product names of the Licensor, except as required for
+reasonable and customary use in describing the origin of the Work and
+reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty.
+
+Unless required by applicable law or agreed to in writing, Licensor provides the
+Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
+including, without limitation, any warranties or conditions of TITLE,
+NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are
+solely responsible for determining the appropriateness of using or
+redistributing the Work and assume any risks associated with Your exercise of
+permissions under this License.
+
+8. Limitation of Liability.
+
+In no event and under no legal theory, whether in tort (including negligence),
+contract, or otherwise, unless required by applicable law (such as deliberate
+and grossly negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special, incidental,
+or consequential damages of any character arising as a result of this License or
+out of the use or inability to use the Work (including but not limited to
+damages for loss of goodwill, work stoppage, computer failure or malfunction, or
+any and all other commercial damages or losses), even if such Contributor has
+been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability.
+
+While redistributing the Work or Derivative Works thereof, You may choose to
+offer, and charge a fee for, acceptance of support, warranty, indemnity, or
+other liability obligations and/or rights consistent with this License. However,
+in accepting such obligations, You may act only on Your own behalf and on Your
+sole responsibility, not on behalf of any other Contributor, and only if You
+agree to indemnify, defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason of your
+accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own
+identifying information. (Don't include the brackets!) The text should be
+enclosed in the appropriate comment syntax for the file format. We also
+recommend that a file or class name and description of purpose be included on
+the same "printed page" as the copyright notice for easier identification within
+third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/go-macaron/inject/README.md

@@ -0,0 +1,11 @@
+# inject [![Build Status](https://travis-ci.org/go-macaron/inject.svg?branch=master)](https://travis-ci.org/go-macaron/inject) [![](http://gocover.io/_badge/github.com/go-macaron/inject)](http://gocover.io/github.com/go-macaron/inject)
+
+Package inject provides utilities for mapping and injecting dependencies in various ways.
+
+**This a modified version of [codegangsta/inject](https://github.com/codegangsta/inject) for special purpose of Macaron**
+
+**Please use the original version if you need dependency injection feature**
+
+## License
+
+This project is under the Apache License, Version 2.0. See the [LICENSE](LICENSE) file for the full license text.

vendor/github.com/go-macaron/inject/inject.go

@@ -0,0 +1,262 @@
+// Copyright 2013 Jeremy Saenz
+// Copyright 2015 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+// Package inject provides utilities for mapping and injecting dependencies in various ways.
+package inject
+
+import (
+	"fmt"
+	"reflect"
+)
+
+// Injector represents an interface for mapping and injecting dependencies into structs
+// and function arguments.
+type Injector interface {
+	Applicator
+	Invoker
+	TypeMapper
+	// SetParent sets the parent of the injector. If the injector cannot find a
+	// dependency in its Type map it will check its parent before returning an
+	// error.
+	SetParent(Injector)
+}
+
+// Applicator represents an interface for mapping dependencies to a struct.
+type Applicator interface {
+	// Maps dependencies in the Type map to each field in the struct
+	// that is tagged with 'inject'. Returns an error if the injection
+	// fails.
+	Apply(interface{}) error
+}
+
+// Invoker represents an interface for calling functions via reflection.
+type Invoker interface {
+	// Invoke attempts to call the interface{} provided as a function,
+	// providing dependencies for function arguments based on Type. Returns
+	// a slice of reflect.Value representing the returned values of the function.
+	// Returns an error if the injection fails.
+	Invoke(interface{}) ([]reflect.Value, error)
+}
+
+// FastInvoker represents an interface in order to avoid the calling function via reflection.
+//
+// example:
+//	type handlerFuncHandler func(http.ResponseWriter, *http.Request) error
+//	func (f handlerFuncHandler)Invoke([]interface{}) ([]reflect.Value, error){
+//		ret := f(p[0].(http.ResponseWriter), p[1].(*http.Request))
+//		return []reflect.Value{reflect.ValueOf(ret)}, nil
+//	}
+//
+//	type funcHandler func(int, string)
+//	func (f funcHandler)Invoke([]interface{}) ([]reflect.Value, error){
+//		f(p[0].(int), p[1].(string))
+//		return nil, nil
+//	}
+type FastInvoker interface {
+	// Invoke attempts to call the ordinary functions. If f is a function
+	// with the appropriate signature, f.Invoke([]interface{}) is a Call that calls f.
+	// Returns a slice of reflect.Value representing the returned values of the function.
+	// Returns an error if the injection fails.
+	Invoke([]interface{}) ([]reflect.Value, error)
+}
+
+// IsFastInvoker check interface is FastInvoker
+func IsFastInvoker(h interface{}) bool {
+	_, ok := h.(FastInvoker)
+	return ok
+}
+
+// TypeMapper represents an interface for mapping interface{} values based on type.
+type TypeMapper interface {
+	// Maps the interface{} value based on its immediate type from reflect.TypeOf.
+	Map(interface{}) TypeMapper
+	// Maps the interface{} value based on the pointer of an Interface provided.
+	// This is really only useful for mapping a value as an interface, as interfaces
+	// cannot at this time be referenced directly without a pointer.
+	MapTo(interface{}, interface{}) TypeMapper
+	// Provides a possibility to directly insert a mapping based on type and value.
+	// This makes it possible to directly map type arguments not possible to instantiate
+	// with reflect like unidirectional channels.
+	Set(reflect.Type, reflect.Value) TypeMapper
+	// Returns the Value that is mapped to the current type. Returns a zeroed Value if
+	// the Type has not been mapped.
+	GetVal(reflect.Type) reflect.Value
+}
+
+type injector struct {
+	values map[reflect.Type]reflect.Value
+	parent Injector
+}
+
+// InterfaceOf dereferences a pointer to an Interface type.
+// It panics if value is not an pointer to an interface.
+func InterfaceOf(value interface{}) reflect.Type {
+	t := reflect.TypeOf(value)
+
+	for t.Kind() == reflect.Ptr {
+		t = t.Elem()
+	}
+
+	if t.Kind() != reflect.Interface {
+		panic("Called inject.InterfaceOf with a value that is not a pointer to an interface. (*MyInterface)(nil)")
+	}
+
+	return t
+}
+
+// New returns a new Injector.
+func New() Injector {
+	return &injector{
+		values: make(map[reflect.Type]reflect.Value),
+	}
+}
+
+// Invoke attempts to call the interface{} provided as a function,
+// providing dependencies for function arguments based on Type.
+// Returns a slice of reflect.Value representing the returned values of the function.
+// Returns an error if the injection fails.
+// It panics if f is not a function
+func (inj *injector) Invoke(f interface{}) ([]reflect.Value, error) {
+	t := reflect.TypeOf(f)
+	switch v := f.(type) {
+	case FastInvoker:
+		return inj.fastInvoke(v, t, t.NumIn())
+	default:
+		return inj.callInvoke(f, t, t.NumIn())
+	}
+}
+
+func (inj *injector) fastInvoke(f FastInvoker, t reflect.Type, numIn int) ([]reflect.Value, error) {
+	var in []interface{}
+	if numIn > 0 {
+		in = make([]interface{}, numIn) // Panic if t is not kind of Func
+		var argType reflect.Type
+		var val reflect.Value
+		for i := 0; i < numIn; i++ {
+			argType = t.In(i)
+			val = inj.GetVal(argType)
+			if !val.IsValid() {
+				return nil, fmt.Errorf("Value not found for type %v", argType)
+			}
+
+			in[i] = val.Interface()
+		}
+	}
+	return f.Invoke(in)
+}
+
+// callInvoke reflect.Value.Call
+func (inj *injector) callInvoke(f interface{}, t reflect.Type, numIn int) ([]reflect.Value, error) {
+	var in []reflect.Value
+	if numIn > 0 {
+		in = make([]reflect.Value, numIn)
+		var argType reflect.Type
+		var val reflect.Value
+		for i := 0; i < numIn; i++ {
+			argType = t.In(i)
+			val = inj.GetVal(argType)
+			if !val.IsValid() {
+				return nil, fmt.Errorf("Value not found for type %v", argType)
+			}
+
+			in[i] = val
+		}
+	}
+	return reflect.ValueOf(f).Call(in), nil
+}
+
+// Maps dependencies in the Type map to each field in the struct
+// that is tagged with 'inject'.
+// Returns an error if the injection fails.
+func (inj *injector) Apply(val interface{}) error {
+	v := reflect.ValueOf(val)
+
+	for v.Kind() == reflect.Ptr {
+		v = v.Elem()
+	}
+
+	if v.Kind() != reflect.Struct {
+		return nil // Should not panic here ?
+	}
+
+	t := v.Type()
+
+	for i := 0; i < v.NumField(); i++ {
+		f := v.Field(i)
+		structField := t.Field(i)
+		if f.CanSet() && (structField.Tag == "inject" || structField.Tag.Get("inject") != "") {
+			ft := f.Type()
+			v := inj.GetVal(ft)
+			if !v.IsValid() {
+				return fmt.Errorf("Value not found for type %v", ft)
+			}
+
+			f.Set(v)
+		}
+
+	}
+
+	return nil
+}
+
+// Maps the concrete value of val to its dynamic type using reflect.TypeOf,
+// It returns the TypeMapper registered in.
+func (i *injector) Map(val interface{}) TypeMapper {
+	i.values[reflect.TypeOf(val)] = reflect.ValueOf(val)
+	return i
+}
+
+func (i *injector) MapTo(val interface{}, ifacePtr interface{}) TypeMapper {
+	i.values[InterfaceOf(ifacePtr)] = reflect.ValueOf(val)
+	return i
+}
+
+// Maps the given reflect.Type to the given reflect.Value and returns
+// the Typemapper the mapping has been registered in.
+func (i *injector) Set(typ reflect.Type, val reflect.Value) TypeMapper {
+	i.values[typ] = val
+	return i
+}
+
+func (i *injector) GetVal(t reflect.Type) reflect.Value {
+	val := i.values[t]
+
+	if val.IsValid() {
+		return val
+	}
+
+	// no concrete types found, try to find implementors
+	// if t is an interface
+	if t.Kind() == reflect.Interface {
+		for k, v := range i.values {
+			if k.Implements(t) {
+				val = v
+				break
+			}
+		}
+	}
+
+	// Still no type found, try to look it up on the parent
+	if !val.IsValid() && i.parent != nil {
+		val = i.parent.GetVal(t)
+	}
+
+	return val
+
+}
+
+func (i *injector) SetParent(parent Injector) {
+	i.parent = parent
+}

vendor/github.com/go-macaron/session/LICENSE

@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
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+
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+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
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+"Derivative Works" shall mean any work, whether in Source or Object form, that
+is based on (or derived from) the Work and for which the editorial revisions,
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+original work of authorship. For the purposes of this License, Derivative Works
+shall not include works that remain separable from, or merely link (or bind by
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+
+"Contribution" shall mean any work of authorship, including the original version
+of the Work and any modifications or additions to that Work or Derivative Works
+thereof, that is intentionally submitted to Licensor for inclusion in the Work
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+"submitted" means any form of electronic, verbal, or written communication sent
+to the Licensor or its representatives, including but not limited to
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+issue tracking systems that are managed by, or on behalf of, the Licensor for
+the purpose of discussing and improving the Work, but excluding communication
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+owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
+of whom a Contribution has been received by Licensor and subsequently
+incorporated within the Work.
+
+2. Grant of Copyright License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable copyright license to reproduce, prepare Derivative Works of,
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+provided that You meet the following conditions:
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+5. Submission of Contributions.
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+Unless You explicitly state otherwise, any Contribution intentionally submitted
+for inclusion in the Work by You to the Licensor shall be under the terms and
+conditions of this License, without any additional terms or conditions.
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+any separate license agreement you may have executed with Licensor regarding
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+6. Trademarks.
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+This License does not grant permission to use the trade names, trademarks,
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+reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty.
+
+Unless required by applicable law or agreed to in writing, Licensor provides the
+Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
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+solely responsible for determining the appropriateness of using or
+redistributing the Work and assume any risks associated with Your exercise of
+permissions under this License.
+
+8. Limitation of Liability.
+
+In no event and under no legal theory, whether in tort (including negligence),
+contract, or otherwise, unless required by applicable law (such as deliberate
+and grossly negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special, incidental,
+or consequential damages of any character arising as a result of this License or
+out of the use or inability to use the Work (including but not limited to
+damages for loss of goodwill, work stoppage, computer failure or malfunction, or
+any and all other commercial damages or losses), even if such Contributor has
+been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability.
+
+While redistributing the Work or Derivative Works thereof, You may choose to
+offer, and charge a fee for, acceptance of support, warranty, indemnity, or
+other liability obligations and/or rights consistent with this License. However,
+in accepting such obligations, You may act only on Your own behalf and on Your
+sole responsibility, not on behalf of any other Contributor, and only if You
+agree to indemnify, defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason of your
+accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
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+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/go-macaron/session/README.md

@@ -0,0 +1,20 @@
+# session [![Build Status](https://travis-ci.org/go-macaron/session.svg?branch=master)](https://travis-ci.org/go-macaron/session) [![](http://gocover.io/_badge/github.com/go-macaron/session)](http://gocover.io/github.com/go-macaron/session)
+
+Middleware session provides session management for [Macaron](https://github.com/go-macaron/macaron). It can use many session providers, including memory, file, Redis, Memcache, PostgreSQL, MySQL, Couchbase, Ledis and Nodb.
+
+### Installation
+
+	go get github.com/go-macaron/session
+	
+## Getting Help
+
+- [API Reference](https://gowalker.org/github.com/go-macaron/session)
+- [Documentation](http://go-macaron.com/docs/middlewares/session)
+
+## Credits
+
+This package is a modified version of [beego/session](https://github.com/astaxie/beego/tree/master/session).
+
+## License
+
+This project is under the Apache License, Version 2.0. See the [LICENSE](LICENSE) file for the full license text.

vendor/github.com/go-macaron/session/file.go

@@ -0,0 +1,261 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package session
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"path"
+	"path/filepath"
+	"sync"
+	"time"
+
+	"github.com/Unknwon/com"
+)
+
+// FileStore represents a file session store implementation.
+type FileStore struct {
+	p    *FileProvider
+	sid  string
+	lock sync.RWMutex
+	data map[interface{}]interface{}
+}
+
+// NewFileStore creates and returns a file session store.
+func NewFileStore(p *FileProvider, sid string, kv map[interface{}]interface{}) *FileStore {
+	return &FileStore{
+		p:    p,
+		sid:  sid,
+		data: kv,
+	}
+}
+
+// Set sets value to given key in session.
+func (s *FileStore) Set(key, val interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data[key] = val
+	return nil
+}
+
+// Get gets value by given key in session.
+func (s *FileStore) Get(key interface{}) interface{} {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+
+	return s.data[key]
+}
+
+// Delete delete a key from session.
+func (s *FileStore) Delete(key interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	delete(s.data, key)
+	return nil
+}
+
+// ID returns current session ID.
+func (s *FileStore) ID() string {
+	return s.sid
+}
+
+// Release releases resource and save data to provider.
+func (s *FileStore) Release() error {
+	s.p.lock.Lock()
+	defer s.p.lock.Unlock()
+
+	data, err := EncodeGob(s.data)
+	if err != nil {
+		return err
+	}
+
+	return ioutil.WriteFile(s.p.filepath(s.sid), data, os.ModePerm)
+}
+
+// Flush deletes all session data.
+func (s *FileStore) Flush() error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data = make(map[interface{}]interface{})
+	return nil
+}
+
+// FileProvider represents a file session provider implementation.
+type FileProvider struct {
+	lock        sync.RWMutex
+	maxlifetime int64
+	rootPath    string
+}
+
+// Init initializes file session provider with given root path.
+func (p *FileProvider) Init(maxlifetime int64, rootPath string) error {
+	p.lock.Lock()
+	p.maxlifetime = maxlifetime
+	p.rootPath = rootPath
+	p.lock.Unlock()
+	return nil
+}
+
+func (p *FileProvider) filepath(sid string) string {
+	return path.Join(p.rootPath, string(sid[0]), string(sid[1]), sid)
+}
+
+// Read returns raw session store by session ID.
+func (p *FileProvider) Read(sid string) (_ RawStore, err error) {
+	filename := p.filepath(sid)
+	if err = os.MkdirAll(path.Dir(filename), os.ModePerm); err != nil {
+		return nil, err
+	}
+	p.lock.RLock()
+	defer p.lock.RUnlock()
+
+	var f *os.File
+	if com.IsFile(filename) {
+		f, err = os.OpenFile(filename, os.O_RDWR, os.ModePerm)
+	} else {
+		f, err = os.Create(filename)
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	if err = os.Chtimes(filename, time.Now(), time.Now()); err != nil {
+		return nil, err
+	}
+
+	var kv map[interface{}]interface{}
+	data, err := ioutil.ReadAll(f)
+	if err != nil {
+		return nil, err
+	}
+	if len(data) == 0 {
+		kv = make(map[interface{}]interface{})
+	} else {
+		kv, err = DecodeGob(data)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return NewFileStore(p, sid, kv), nil
+}
+
+// Exist returns true if session with given ID exists.
+func (p *FileProvider) Exist(sid string) bool {
+	p.lock.RLock()
+	defer p.lock.RUnlock()
+	return com.IsFile(p.filepath(sid))
+}
+
+// Destory deletes a session by session ID.
+func (p *FileProvider) Destory(sid string) error {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	return os.Remove(p.filepath(sid))
+}
+
+func (p *FileProvider) regenerate(oldsid, sid string) (err error) {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+
+	filename := p.filepath(sid)
+	if com.IsExist(filename) {
+		return fmt.Errorf("new sid '%s' already exists", sid)
+	}
+
+	oldname := p.filepath(oldsid)
+	if !com.IsFile(oldname) {
+		data, err := EncodeGob(make(map[interface{}]interface{}))
+		if err != nil {
+			return err
+		}
+		if err = os.MkdirAll(path.Dir(oldname), os.ModePerm); err != nil {
+			return err
+		}
+		if err = ioutil.WriteFile(oldname, data, os.ModePerm); err != nil {
+			return err
+		}
+	}
+
+	if err = os.MkdirAll(path.Dir(filename), os.ModePerm); err != nil {
+		return err
+	}
+	if err = os.Rename(oldname, filename); err != nil {
+		return err
+	}
+	return nil
+}
+
+// Regenerate regenerates a session store from old session ID to new one.
+func (p *FileProvider) Regenerate(oldsid, sid string) (_ RawStore, err error) {
+	if err := p.regenerate(oldsid, sid); err != nil {
+		return nil, err
+	}
+
+	return p.Read(sid)
+}
+
+// Count counts and returns number of sessions.
+func (p *FileProvider) Count() int {
+	count := 0
+	if err := filepath.Walk(p.rootPath, func(path string, fi os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		if !fi.IsDir() {
+			count++
+		}
+		return nil
+	}); err != nil {
+		log.Printf("error counting session files: %v", err)
+		return 0
+	}
+	return count
+}
+
+// GC calls GC to clean expired sessions.
+func (p *FileProvider) GC() {
+	p.lock.RLock()
+	defer p.lock.RUnlock()
+
+	if !com.IsExist(p.rootPath) {
+		return
+	}
+
+	if err := filepath.Walk(p.rootPath, func(path string, fi os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		if !fi.IsDir() &&
+			(fi.ModTime().Unix()+p.maxlifetime) < time.Now().Unix() {
+			return os.Remove(path)
+		}
+		return nil
+	}); err != nil {
+		log.Printf("error garbage collecting session files: %v", err)
+	}
+}
+
+func init() {
+	Register("file", &FileProvider{})
+}

vendor/github.com/go-macaron/session/memory.go

@@ -0,0 +1,217 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package session
+
+import (
+	"container/list"
+	"fmt"
+	"sync"
+	"time"
+)
+
+// MemStore represents a in-memory session store implementation.
+type MemStore struct {
+	sid        string
+	lock       sync.RWMutex
+	data       map[interface{}]interface{}
+	lastAccess time.Time
+}
+
+// NewMemStore creates and returns a memory session store.
+func NewMemStore(sid string) *MemStore {
+	return &MemStore{
+		sid:        sid,
+		data:       make(map[interface{}]interface{}),
+		lastAccess: time.Now(),
+	}
+}
+
+// Set sets value to given key in session.
+func (s *MemStore) Set(key, val interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data[key] = val
+	return nil
+}
+
+// Get gets value by given key in session.
+func (s *MemStore) Get(key interface{}) interface{} {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+
+	return s.data[key]
+}
+
+// Delete deletes a key from session.
+func (s *MemStore) Delete(key interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	delete(s.data, key)
+	return nil
+}
+
+// ID returns current session ID.
+func (s *MemStore) ID() string {
+	return s.sid
+}
+
+// Release releases resource and save data to provider.
+func (_ *MemStore) Release() error {
+	return nil
+}
+
+// Flush deletes all session data.
+func (s *MemStore) Flush() error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data = make(map[interface{}]interface{})
+	return nil
+}
+
+// MemProvider represents a in-memory session provider implementation.
+type MemProvider struct {
+	lock        sync.RWMutex
+	maxLifetime int64
+	data        map[string]*list.Element
+	// A priority list whose lastAccess newer gets higer priority.
+	list *list.List
+}
+
+// Init initializes memory session provider.
+func (p *MemProvider) Init(maxLifetime int64, _ string) error {
+	p.lock.Lock()
+	p.maxLifetime = maxLifetime
+	p.lock.Unlock()
+	return nil
+}
+
+// update expands time of session store by given ID.
+func (p *MemProvider) update(sid string) error {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+
+	if e, ok := p.data[sid]; ok {
+		e.Value.(*MemStore).lastAccess = time.Now()
+		p.list.MoveToFront(e)
+		return nil
+	}
+	return nil
+}
+
+// Read returns raw session store by session ID.
+func (p *MemProvider) Read(sid string) (_ RawStore, err error) {
+	p.lock.RLock()
+	e, ok := p.data[sid]
+	p.lock.RUnlock()
+
+	if ok {
+		if err = p.update(sid); err != nil {
+			return nil, err
+		}
+		return e.Value.(*MemStore), nil
+	}
+
+	// Create a new session.
+	p.lock.Lock()
+	defer p.lock.Unlock()
+
+	s := NewMemStore(sid)
+	p.data[sid] = p.list.PushBack(s)
+	return s, nil
+}
+
+// Exist returns true if session with given ID exists.
+func (p *MemProvider) Exist(sid string) bool {
+	p.lock.RLock()
+	defer p.lock.RUnlock()
+
+	_, ok := p.data[sid]
+	return ok
+}
+
+// Destory deletes a session by session ID.
+func (p *MemProvider) Destory(sid string) error {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+
+	e, ok := p.data[sid]
+	if !ok {
+		return nil
+	}
+
+	p.list.Remove(e)
+	delete(p.data, sid)
+	return nil
+}
+
+// Regenerate regenerates a session store from old session ID to new one.
+func (p *MemProvider) Regenerate(oldsid, sid string) (RawStore, error) {
+	if p.Exist(sid) {
+		return nil, fmt.Errorf("new sid '%s' already exists", sid)
+	}
+
+	s, err := p.Read(oldsid)
+	if err != nil {
+		return nil, err
+	}
+
+	if err = p.Destory(oldsid); err != nil {
+		return nil, err
+	}
+
+	s.(*MemStore).sid = sid
+
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	p.data[sid] = p.list.PushBack(s)
+	return s, nil
+}
+
+// Count counts and returns number of sessions.
+func (p *MemProvider) Count() int {
+	return p.list.Len()
+}
+
+// GC calls GC to clean expired sessions.
+func (p *MemProvider) GC() {
+	p.lock.RLock()
+	for {
+		// No session in the list.
+		e := p.list.Back()
+		if e == nil {
+			break
+		}
+
+		if (e.Value.(*MemStore).lastAccess.Unix() + p.maxLifetime) < time.Now().Unix() {
+			p.lock.RUnlock()
+			p.lock.Lock()
+			p.list.Remove(e)
+			delete(p.data, e.Value.(*MemStore).sid)
+			p.lock.Unlock()
+			p.lock.RLock()
+		} else {
+			break
+		}
+	}
+	p.lock.RUnlock()
+}
+
+func init() {
+	Register("memory", &MemProvider{list: list.New(), data: make(map[string]*list.Element)})
+}

vendor/github.com/go-macaron/session/redis/redis.go

@@ -0,0 +1,235 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package session
+
+import (
+	"fmt"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/Unknwon/com"
+	"gopkg.in/ini.v1"
+	"gopkg.in/redis.v2"
+
+	"github.com/go-macaron/session"
+)
+
+// RedisStore represents a redis session store implementation.
+type RedisStore struct {
+	c           *redis.Client
+	prefix, sid string
+	duration    time.Duration
+	lock        sync.RWMutex
+	data        map[interface{}]interface{}
+}
+
+// NewRedisStore creates and returns a redis session store.
+func NewRedisStore(c *redis.Client, prefix, sid string, dur time.Duration, kv map[interface{}]interface{}) *RedisStore {
+	return &RedisStore{
+		c:        c,
+		prefix:   prefix,
+		sid:      sid,
+		duration: dur,
+		data:     kv,
+	}
+}
+
+// Set sets value to given key in session.
+func (s *RedisStore) Set(key, val interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data[key] = val
+	return nil
+}
+
+// Get gets value by given key in session.
+func (s *RedisStore) Get(key interface{}) interface{} {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+
+	return s.data[key]
+}
+
+// Delete delete a key from session.
+func (s *RedisStore) Delete(key interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	delete(s.data, key)
+	return nil
+}
+
+// ID returns current session ID.
+func (s *RedisStore) ID() string {
+	return s.sid
+}
+
+// Release releases resource and save data to provider.
+func (s *RedisStore) Release() error {
+	data, err := session.EncodeGob(s.data)
+	if err != nil {
+		return err
+	}
+
+	return s.c.SetEx(s.prefix+s.sid, s.duration, string(data)).Err()
+}
+
+// Flush deletes all session data.
+func (s *RedisStore) Flush() error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data = make(map[interface{}]interface{})
+	return nil
+}
+
+// RedisProvider represents a redis session provider implementation.
+type RedisProvider struct {
+	c        *redis.Client
+	duration time.Duration
+	prefix   string
+}
+
+// Init initializes redis session provider.
+// configs: network=tcp,addr=:6379,password=macaron,db=0,pool_size=100,idle_timeout=180,prefix=session;
+func (p *RedisProvider) Init(maxlifetime int64, configs string) (err error) {
+	p.duration, err = time.ParseDuration(fmt.Sprintf("%ds", maxlifetime))
+	if err != nil {
+		return err
+	}
+
+	cfg, err := ini.Load([]byte(strings.Replace(configs, ",", "\n", -1)))
+	if err != nil {
+		return err
+	}
+
+	opt := &redis.Options{
+		Network: "tcp",
+	}
+	for k, v := range cfg.Section("").KeysHash() {
+		switch k {
+		case "network":
+			opt.Network = v
+		case "addr":
+			opt.Addr = v
+		case "password":
+			opt.Password = v
+		case "db":
+			opt.DB = com.StrTo(v).MustInt64()
+		case "pool_size":
+			opt.PoolSize = com.StrTo(v).MustInt()
+		case "idle_timeout":
+			opt.IdleTimeout, err = time.ParseDuration(v + "s")
+			if err != nil {
+				return fmt.Errorf("error parsing idle timeout: %v", err)
+			}
+		case "prefix":
+			p.prefix = v
+		default:
+			return fmt.Errorf("session/redis: unsupported option '%s'", k)
+		}
+	}
+
+	p.c = redis.NewClient(opt)
+	return p.c.Ping().Err()
+}
+
+// Read returns raw session store by session ID.
+func (p *RedisProvider) Read(sid string) (session.RawStore, error) {
+	psid := p.prefix + sid
+	if !p.Exist(sid) {
+		if err := p.c.Set(psid, "").Err(); err != nil {
+			return nil, err
+		}
+	}
+
+	var kv map[interface{}]interface{}
+	kvs, err := p.c.Get(psid).Result()
+	if err != nil {
+		return nil, err
+	}
+	if len(kvs) == 0 {
+		kv = make(map[interface{}]interface{})
+	} else {
+		kv, err = session.DecodeGob([]byte(kvs))
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return NewRedisStore(p.c, p.prefix, sid, p.duration, kv), nil
+}
+
+// Exist returns true if session with given ID exists.
+func (p *RedisProvider) Exist(sid string) bool {
+	has, err := p.c.Exists(p.prefix + sid).Result()
+	return err == nil && has
+}
+
+// Destory deletes a session by session ID.
+func (p *RedisProvider) Destory(sid string) error {
+	return p.c.Del(p.prefix + sid).Err()
+}
+
+// Regenerate regenerates a session store from old session ID to new one.
+func (p *RedisProvider) Regenerate(oldsid, sid string) (_ session.RawStore, err error) {
+	poldsid := p.prefix + oldsid
+	psid := p.prefix + sid
+
+	if p.Exist(sid) {
+		return nil, fmt.Errorf("new sid '%s' already exists", sid)
+	} else if !p.Exist(oldsid) {
+		// Make a fake old session.
+		if err = p.c.SetEx(poldsid, p.duration, "").Err(); err != nil {
+			return nil, err
+		}
+	}
+
+	if err = p.c.Rename(poldsid, psid).Err(); err != nil {
+		return nil, err
+	}
+
+	var kv map[interface{}]interface{}
+	kvs, err := p.c.Get(psid).Result()
+	if err != nil {
+		return nil, err
+	}
+
+	if len(kvs) == 0 {
+		kv = make(map[interface{}]interface{})
+	} else {
+		kv, err = session.DecodeGob([]byte(kvs))
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return NewRedisStore(p.c, p.prefix, sid, p.duration, kv), nil
+}
+
+// Count counts and returns number of sessions.
+func (p *RedisProvider) Count() int {
+	return int(p.c.DbSize().Val())
+}
+
+// GC calls GC to clean expired sessions.
+func (_ *RedisProvider) GC() {}
+
+func init() {
+	session.Register("redis", &RedisProvider{})
+}

vendor/github.com/go-macaron/session/redis/redis.goconvey

@@ -0,0 +1 @@
+ignore

vendor/github.com/go-macaron/session/session.go

@@ -0,0 +1,399 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+// Package session a middleware that provides the session management of Macaron.
+package session
+
+import (
+	"encoding/hex"
+	"fmt"
+	"net/http"
+	"net/url"
+	"time"
+
+	"gopkg.in/macaron.v1"
+)
+
+const _VERSION = "0.3.0"
+
+func Version() string {
+	return _VERSION
+}
+
+// RawStore is the interface that operates the session data.
+type RawStore interface {
+	// Set sets value to given key in session.
+	Set(interface{}, interface{}) error
+	// Get gets value by given key in session.
+	Get(interface{}) interface{}
+	// Delete deletes a key from session.
+	Delete(interface{}) error
+	// ID returns current session ID.
+	ID() string
+	// Release releases session resource and save data to provider.
+	Release() error
+	// Flush deletes all session data.
+	Flush() error
+}
+
+// Store is the interface that contains all data for one session process with specific ID.
+type Store interface {
+	RawStore
+	// Read returns raw session store by session ID.
+	Read(string) (RawStore, error)
+	// Destory deletes a session.
+	Destory(*macaron.Context) error
+	// RegenerateId regenerates a session store from old session ID to new one.
+	RegenerateId(*macaron.Context) (RawStore, error)
+	// Count counts and returns number of sessions.
+	Count() int
+	// GC calls GC to clean expired sessions.
+	GC()
+}
+
+type store struct {
+	RawStore
+	*Manager
+}
+
+var _ Store = &store{}
+
+// Options represents a struct for specifying configuration options for the session middleware.
+type Options struct {
+	// Name of provider. Default is "memory".
+	Provider string
+	// Provider configuration, it's corresponding to provider.
+	ProviderConfig string
+	// Cookie name to save session ID. Default is "MacaronSession".
+	CookieName string
+	// Cookie path to store. Default is "/".
+	CookiePath string
+	// GC interval time in seconds. Default is 3600.
+	Gclifetime int64
+	// Max life time in seconds. Default is whatever GC interval time is.
+	Maxlifetime int64
+	// Use HTTPS only. Default is false.
+	Secure bool
+	// Cookie life time. Default is 0.
+	CookieLifeTime int
+	// Cookie domain name. Default is empty.
+	Domain string
+	// Session ID length. Default is 16.
+	IDLength int
+	// Configuration section name. Default is "session".
+	Section string
+}
+
+func prepareOptions(options []Options) Options {
+	var opt Options
+	if len(options) > 0 {
+		opt = options[0]
+	}
+	if len(opt.Section) == 0 {
+		opt.Section = "session"
+	}
+	sec := macaron.Config().Section(opt.Section)
+
+	if len(opt.Provider) == 0 {
+		opt.Provider = sec.Key("PROVIDER").MustString("memory")
+	}
+	if len(opt.ProviderConfig) == 0 {
+		opt.ProviderConfig = sec.Key("PROVIDER_CONFIG").MustString("data/sessions")
+	}
+	if len(opt.CookieName) == 0 {
+		opt.CookieName = sec.Key("COOKIE_NAME").MustString("MacaronSession")
+	}
+	if len(opt.CookiePath) == 0 {
+		opt.CookiePath = sec.Key("COOKIE_PATH").MustString("/")
+	}
+	if opt.Gclifetime == 0 {
+		opt.Gclifetime = sec.Key("GC_INTERVAL_TIME").MustInt64(3600)
+	}
+	if opt.Maxlifetime == 0 {
+		opt.Maxlifetime = sec.Key("MAX_LIFE_TIME").MustInt64(opt.Gclifetime)
+	}
+	if !opt.Secure {
+		opt.Secure = sec.Key("SECURE").MustBool()
+	}
+	if opt.CookieLifeTime == 0 {
+		opt.CookieLifeTime = sec.Key("COOKIE_LIFE_TIME").MustInt()
+	}
+	if len(opt.Domain) == 0 {
+		opt.Domain = sec.Key("DOMAIN").String()
+	}
+	if opt.IDLength == 0 {
+		opt.IDLength = sec.Key("ID_LENGTH").MustInt(16)
+	}
+
+	return opt
+}
+
+// Sessioner is a middleware that maps a session.SessionStore service into the Macaron handler chain.
+// An single variadic session.Options struct can be optionally provided to configure.
+func Sessioner(options ...Options) macaron.Handler {
+	opt := prepareOptions(options)
+	manager, err := NewManager(opt.Provider, opt)
+	if err != nil {
+		panic(err)
+	}
+	go manager.startGC()
+
+	return func(ctx *macaron.Context) {
+		sess, err := manager.Start(ctx)
+		if err != nil {
+			panic("session(start): " + err.Error())
+		}
+
+		// Get flash.
+		vals, _ := url.ParseQuery(ctx.GetCookie("macaron_flash"))
+		if len(vals) > 0 {
+			f := &Flash{Values: vals}
+			f.ErrorMsg = f.Get("error")
+			f.SuccessMsg = f.Get("success")
+			f.InfoMsg = f.Get("info")
+			f.WarningMsg = f.Get("warning")
+			ctx.Data["Flash"] = f
+			ctx.SetCookie("macaron_flash", "", -1, opt.CookiePath)
+		}
+
+		f := &Flash{ctx, url.Values{}, "", "", "", ""}
+		ctx.Resp.Before(func(macaron.ResponseWriter) {
+			if flash := f.Encode(); len(flash) > 0 {
+				ctx.SetCookie("macaron_flash", flash, 0, opt.CookiePath)
+			}
+		})
+
+		ctx.Map(f)
+		s := store{
+			RawStore: sess,
+			Manager:  manager,
+		}
+
+		ctx.MapTo(s, (*Store)(nil))
+
+		ctx.Next()
+
+		if err = sess.Release(); err != nil {
+			panic("session(release): " + err.Error())
+		}
+	}
+}
+
+// Provider is the interface that provides session manipulations.
+type Provider interface {
+	// Init initializes session provider.
+	Init(gclifetime int64, config string) error
+	// Read returns raw session store by session ID.
+	Read(sid string) (RawStore, error)
+	// Exist returns true if session with given ID exists.
+	Exist(sid string) bool
+	// Destory deletes a session by session ID.
+	Destory(sid string) error
+	// Regenerate regenerates a session store from old session ID to new one.
+	Regenerate(oldsid, sid string) (RawStore, error)
+	// Count counts and returns number of sessions.
+	Count() int
+	// GC calls GC to clean expired sessions.
+	GC()
+}
+
+var providers = make(map[string]Provider)
+
+// Register registers a provider.
+func Register(name string, provider Provider) {
+	if provider == nil {
+		panic("session: cannot register provider with nil value")
+	}
+	if _, dup := providers[name]; dup {
+		panic(fmt.Errorf("session: cannot register provider '%s' twice", name))
+	}
+	providers[name] = provider
+}
+
+//    _____
+//   /     \ _____    ____ _____     ____   ___________
+//  /  \ /  \\__  \  /    \\__  \   / ___\_/ __ \_  __ \
+// /    Y    \/ __ \|   |  \/ __ \_/ /_/  >  ___/|  | \/
+// \____|__  (____  /___|  (____  /\___  / \___  >__|
+//         \/     \/     \/     \//_____/      \/
+
+// Manager represents a struct that contains session provider and its configuration.
+type Manager struct {
+	provider Provider
+	opt      Options
+}
+
+// NewManager creates and returns a new session manager by given provider name and configuration.
+// It panics when given provider isn't registered.
+func NewManager(name string, opt Options) (*Manager, error) {
+	p, ok := providers[name]
+	if !ok {
+		return nil, fmt.Errorf("session: unknown provider '%s'(forgotten import?)", name)
+	}
+	return &Manager{p, opt}, p.Init(opt.Maxlifetime, opt.ProviderConfig)
+}
+
+// sessionId generates a new session ID with rand string, unix nano time, remote addr by hash function.
+func (m *Manager) sessionId() string {
+	return hex.EncodeToString(generateRandomKey(m.opt.IDLength / 2))
+}
+
+// Start starts a session by generating new one
+// or retrieve existence one by reading session ID from HTTP request if it's valid.
+func (m *Manager) Start(ctx *macaron.Context) (RawStore, error) {
+	sid := ctx.GetCookie(m.opt.CookieName)
+	if len(sid) > 0 && m.provider.Exist(sid) {
+		return m.provider.Read(sid)
+	}
+
+	sid = m.sessionId()
+	sess, err := m.provider.Read(sid)
+	if err != nil {
+		return nil, err
+	}
+
+	cookie := &http.Cookie{
+		Name:     m.opt.CookieName,
+		Value:    sid,
+		Path:     m.opt.CookiePath,
+		HttpOnly: true,
+		Secure:   m.opt.Secure,
+		Domain:   m.opt.Domain,
+	}
+	if m.opt.CookieLifeTime >= 0 {
+		cookie.MaxAge = m.opt.CookieLifeTime
+	}
+	http.SetCookie(ctx.Resp, cookie)
+	ctx.Req.AddCookie(cookie)
+	return sess, nil
+}
+
+// Read returns raw session store by session ID.
+func (m *Manager) Read(sid string) (RawStore, error) {
+	return m.provider.Read(sid)
+}
+
+// Destory deletes a session by given ID.
+func (m *Manager) Destory(ctx *macaron.Context) error {
+	sid := ctx.GetCookie(m.opt.CookieName)
+	if len(sid) == 0 {
+		return nil
+	}
+
+	if err := m.provider.Destory(sid); err != nil {
+		return err
+	}
+	cookie := &http.Cookie{
+		Name:     m.opt.CookieName,
+		Path:     m.opt.CookiePath,
+		HttpOnly: true,
+		Expires:  time.Now(),
+		MaxAge:   -1,
+	}
+	http.SetCookie(ctx.Resp, cookie)
+	return nil
+}
+
+// RegenerateId regenerates a session store from old session ID to new one.
+func (m *Manager) RegenerateId(ctx *macaron.Context) (sess RawStore, err error) {
+	sid := m.sessionId()
+	oldsid := ctx.GetCookie(m.opt.CookieName)
+	sess, err = m.provider.Regenerate(oldsid, sid)
+	if err != nil {
+		return nil, err
+	}
+	ck := &http.Cookie{
+		Name:     m.opt.CookieName,
+		Value:    sid,
+		Path:     m.opt.CookiePath,
+		HttpOnly: true,
+		Secure:   m.opt.Secure,
+		Domain:   m.opt.Domain,
+	}
+	if m.opt.CookieLifeTime >= 0 {
+		ck.MaxAge = m.opt.CookieLifeTime
+	}
+	http.SetCookie(ctx.Resp, ck)
+	ctx.Req.AddCookie(ck)
+	return sess, nil
+}
+
+// Count counts and returns number of sessions.
+func (m *Manager) Count() int {
+	return m.provider.Count()
+}
+
+// GC starts GC job in a certain period.
+func (m *Manager) GC() {
+	m.provider.GC()
+}
+
+// startGC starts GC job in a certain period.
+func (m *Manager) startGC() {
+	m.GC()
+	time.AfterFunc(time.Duration(m.opt.Gclifetime)*time.Second, func() { m.startGC() })
+}
+
+// SetSecure indicates whether to set cookie with HTTPS or not.
+func (m *Manager) SetSecure(secure bool) {
+	m.opt.Secure = secure
+}
+
+// ___________.____       _____    _________ ___ ___
+// \_   _____/|    |     /  _  \  /   _____//   |   \
+//  |    __)  |    |    /  /_\  \ \_____  \/    ~    \
+//  |     \   |    |___/    |    \/        \    Y    /
+//  \___  /   |_______ \____|__  /_______  /\___|_  /
+//      \/            \/       \/        \/       \/
+
+type Flash struct {
+	ctx *macaron.Context
+	url.Values
+	ErrorMsg, WarningMsg, InfoMsg, SuccessMsg string
+}
+
+func (f *Flash) set(name, msg string, current ...bool) {
+	isShow := false
+	if (len(current) == 0 && macaron.FlashNow) ||
+		(len(current) > 0 && current[0]) {
+		isShow = true
+	}
+
+	if isShow {
+		f.ctx.Data["Flash"] = f
+	} else {
+		f.Set(name, msg)
+	}
+}
+
+func (f *Flash) Error(msg string, current ...bool) {
+	f.ErrorMsg = msg
+	f.set("error", msg, current...)
+}
+
+func (f *Flash) Warning(msg string, current ...bool) {
+	f.WarningMsg = msg
+	f.set("warning", msg, current...)
+}
+
+func (f *Flash) Info(msg string, current ...bool) {
+	f.InfoMsg = msg
+	f.set("info", msg, current...)
+}
+
+func (f *Flash) Success(msg string, current ...bool) {
+	f.SuccessMsg = msg
+	f.set("success", msg, current...)
+}

vendor/github.com/go-macaron/session/utils.go

@@ -0,0 +1,60 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package session
+
+import (
+	"bytes"
+	"crypto/rand"
+	"encoding/gob"
+	"io"
+
+	"github.com/Unknwon/com"
+)
+
+func init() {
+	gob.Register([]interface{}{})
+	gob.Register(map[int]interface{}{})
+	gob.Register(map[string]interface{}{})
+	gob.Register(map[interface{}]interface{}{})
+	gob.Register(map[string]string{})
+	gob.Register(map[int]string{})
+	gob.Register(map[int]int{})
+	gob.Register(map[int]int64{})
+}
+
+func EncodeGob(obj map[interface{}]interface{}) ([]byte, error) {
+	for _, v := range obj {
+		gob.Register(v)
+	}
+	buf := bytes.NewBuffer(nil)
+	err := gob.NewEncoder(buf).Encode(obj)
+	return buf.Bytes(), err
+}
+
+func DecodeGob(encoded []byte) (out map[interface{}]interface{}, err error) {
+	buf := bytes.NewBuffer(encoded)
+	err = gob.NewDecoder(buf).Decode(&out)
+	return out, err
+}
+
+// generateRandomKey creates a random key with the given strength.
+func generateRandomKey(strength int) []byte {
+	k := make([]byte, strength)
+	if n, err := io.ReadFull(rand.Reader, k); n != strength || err != nil {
+		return com.RandomCreateBytes(strength)
+	}
+	return k
+}

vendor/github.com/go-macaron/toolbox/LICENSE

@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
+
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+owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other entities
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+outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
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+but not limited to software source code, documentation source, and configuration
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+"Work" shall mean the work of authorship, whether in Source or Object form, made
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+in or attached to the work (an example is provided in the Appendix below).
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+is based on (or derived from) the Work and for which the editorial revisions,
+annotations, elaborations, or other modifications represent, as a whole, an
+original work of authorship. For the purposes of this License, Derivative Works
+shall not include works that remain separable from, or merely link (or bind by
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+
+"Contribution" shall mean any work of authorship, including the original version
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+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
+of whom a Contribution has been received by Licensor and subsequently
+incorporated within the Work.
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+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
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+distribution of Your modifications, or for any such Derivative Works as a whole,
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+with the conditions stated in this License.
+
+5. Submission of Contributions.
+
+Unless You explicitly state otherwise, any Contribution intentionally submitted
+for inclusion in the Work by You to the Licensor shall be under the terms and
+conditions of this License, without any additional terms or conditions.
+Notwithstanding the above, nothing herein shall supersede or modify the terms of
+any separate license agreement you may have executed with Licensor regarding
+such Contributions.
+
+6. Trademarks.
+
+This License does not grant permission to use the trade names, trademarks,
+service marks, or product names of the Licensor, except as required for
+reasonable and customary use in describing the origin of the Work and
+reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty.
+
+Unless required by applicable law or agreed to in writing, Licensor provides the
+Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
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+solely responsible for determining the appropriateness of using or
+redistributing the Work and assume any risks associated with Your exercise of
+permissions under this License.
+
+8. Limitation of Liability.
+
+In no event and under no legal theory, whether in tort (including negligence),
+contract, or otherwise, unless required by applicable law (such as deliberate
+and grossly negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special, incidental,
+or consequential damages of any character arising as a result of this License or
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+damages for loss of goodwill, work stoppage, computer failure or malfunction, or
+any and all other commercial damages or losses), even if such Contributor has
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+
+9. Accepting Warranty or Additional Liability.
+
+While redistributing the Work or Derivative Works thereof, You may choose to
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+in accepting such obligations, You may act only on Your own behalf and on Your
+sole responsibility, not on behalf of any other Contributor, and only if You
+agree to indemnify, defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason of your
+accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own
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+enclosed in the appropriate comment syntax for the file format. We also
+recommend that a file or class name and description of purpose be included on
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+third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/go-macaron/toolbox/README.md

@@ -0,0 +1,110 @@
+toolbox
+=======
+
+Middleware toolbox provides health chcek, pprof, profile and statistic services for [Macaron](https://github.com/go-macaron/macaron).
+
+[API Reference](https://gowalker.org/github.com/go-macaron/toolbox)
+
+### Installation
+
+	go get github.com/go-macaron/toolbox
+	
+## Usage
+
+```go
+// main.go
+import (
+	"gopkg.in/macaron.v1"
+	"github.com/go-macaron/toolbox"
+)
+
+func main() {
+  	m := macaron.Classic()
+  	m.Use(toolbox.Toolboxer(m))
+	m.Run()
+}
+```
+
+Open your browser and visit `http://localhost:4000/debug` to see the effects.
+
+## Options
+
+`toolbox.Toolboxer` comes with a variety of configuration options:
+
+```go
+type dummyChecker struct {
+}
+
+func (dc *dummyChecker) Desc() string {
+	return "Dummy checker"
+}
+
+func (dc *dummyChecker) Check() error {
+	return nil
+}
+
+// ...
+m.Use(toolbox.Toolboxer(m, toolbox.Options{
+	URLPrefix:			"/debug",			// URL prefix for toolbox dashboard.
+	HealthCheckURL:		"/healthcheck", 	// URL for health check request.
+	HealthCheckers: []HealthChecker{
+		new(dummyChecker),
+	},										// Health checkers.
+	HealthCheckFuncs: []*toolbox.HealthCheckFuncDesc{
+		&toolbox.HealthCheckFuncDesc{
+			Desc: "Database connection",
+			Func: func() error { return "OK" },
+		},
+	},										// Health check functions.
+	PprofURLPrefix:		"/debug/pprof/", 	// URL prefix of pprof.
+	ProfileURLPrefix:	"/debug/profile/", 	// URL prefix of profile.
+	ProfilePath:		"profile", 			// Path store profile files.
+}))
+// ...
+```
+
+## Route Statistic
+
+Toolbox also comes with a route call statistic functionality:
+
+```go
+import (
+	"os"
+	"time"
+	//...
+	"github.com/go-macaron/toolbox"
+)
+
+func main() {
+	//...
+	m.Get("/", func(t toolbox.Toolbox) {
+		start := time.Now()
+		
+		// Other operations.
+		
+		t.AddStatistics("GET", "/", time.Since(start))
+	})
+	
+	m.Get("/dump", func(t toolbox.Toolbox) {
+		t.GetMap(os.Stdout)
+	})
+}
+```
+
+Output take from test:
+
+```
++---------------------------------------------------+------------+------------------+------------------+------------------+------------------+------------------+
+| Request URL                                       | Method     | Times            | Total Used(s)    | Max Used(μs)     | Min Used(μs)     | Avg Used(μs)     |
++---------------------------------------------------+------------+------------------+------------------+------------------+------------------+------------------+
+| /api/user                                         | POST       |                2 |         0.000122 |       120.000000 |         2.000000 |        61.000000 |
+| /api/user                                         | GET        |                1 |         0.000013 |        13.000000 |        13.000000 |        13.000000 |
+| /api/user                                         | DELETE     |                1 |         0.000001 |         1.400000 |         1.400000 |         1.400000 |
+| /api/admin                                        | POST       |                1 |         0.000014 |        14.000000 |        14.000000 |        14.000000 |
+| /api/user/unknwon                                 | POST       |                1 |         0.000012 |        12.000000 |        12.000000 |        12.000000 |
++---------------------------------------------------+------------+------------------+------------------+------------------+------------------+------------------+
+```
+
+## License
+
+This project is under Apache v2 License. See the [LICENSE](LICENSE) file for the full license text.

vendor/github.com/go-macaron/toolbox/healthcheck.go

@@ -0,0 +1,83 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package toolbox
+
+import (
+	"bytes"
+)
+
+// HealthChecker represents a health check instance.
+type HealthChecker interface {
+	Desc() string
+	Check() error
+}
+
+// HealthCheckFunc represents a callable function for health check.
+type HealthCheckFunc func() error
+
+// HealthCheckFunc represents a callable function for health check with description.
+type HealthCheckFuncDesc struct {
+	Desc string
+	Func HealthCheckFunc
+}
+
+type healthCheck struct {
+	desc string
+	HealthChecker
+	check HealthCheckFunc // Not nil if add job as a function.
+}
+
+// AddHealthCheck adds new health check job.
+func (t *toolbox) AddHealthCheck(hc HealthChecker) {
+	t.healthCheckJobs = append(t.healthCheckJobs, &healthCheck{
+		HealthChecker: hc,
+	})
+}
+
+// AddHealthCheckFunc adds a function as a new health check job.
+func (t *toolbox) AddHealthCheckFunc(desc string, fn HealthCheckFunc) {
+	t.healthCheckJobs = append(t.healthCheckJobs, &healthCheck{
+		desc:  desc,
+		check: fn,
+	})
+}
+
+func (t *toolbox) handleHealthCheck() string {
+	if len(t.healthCheckJobs) == 0 {
+		return "no health check jobs"
+	}
+
+	var buf bytes.Buffer
+	var err error
+	for _, job := range t.healthCheckJobs {
+		buf.WriteString("* ")
+		if job.check != nil {
+			buf.WriteString(job.desc)
+			err = job.check()
+		} else {
+			buf.WriteString(job.Desc())
+			err = job.Check()
+		}
+		buf.WriteString(": ")
+		if err == nil {
+			buf.WriteString("OK")
+		} else {
+			buf.WriteString(err.Error())
+		}
+		buf.WriteString("\n")
+	}
+	return buf.String()
+}

vendor/github.com/go-macaron/toolbox/profile.go

@@ -0,0 +1,163 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package toolbox
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"path"
+	"runtime"
+	"runtime/debug"
+	"runtime/pprof"
+	"time"
+
+	"github.com/Unknwon/com"
+	"gopkg.in/macaron.v1"
+)
+
+var (
+	profilePath  string
+	pid          int
+	startTime    = time.Now()
+	inCPUProfile bool
+)
+
+// StartCPUProfile starts CPU profile monitor.
+func StartCPUProfile() error {
+	if inCPUProfile {
+		return errors.New("CPU profile has alreday been started!")
+	}
+	inCPUProfile = true
+
+	os.MkdirAll(profilePath, os.ModePerm)
+	f, err := os.Create(path.Join(profilePath, "cpu-"+com.ToStr(pid)+".pprof"))
+	if err != nil {
+		panic("fail to record CPU profile: " + err.Error())
+	}
+	pprof.StartCPUProfile(f)
+	return nil
+}
+
+// StopCPUProfile stops CPU profile monitor.
+func StopCPUProfile() error {
+	if !inCPUProfile {
+		return errors.New("CPU profile hasn't been started!")
+	}
+	pprof.StopCPUProfile()
+	inCPUProfile = false
+	return nil
+}
+
+func init() {
+	pid = os.Getpid()
+}
+
+// DumpMemProf dumps memory profile in pprof.
+func DumpMemProf(w io.Writer) {
+	pprof.WriteHeapProfile(w)
+}
+
+func dumpMemProf() {
+	os.MkdirAll(profilePath, os.ModePerm)
+	f, err := os.Create(path.Join(profilePath, "mem-"+com.ToStr(pid)+".memprof"))
+	if err != nil {
+		panic("fail to record memory profile: " + err.Error())
+	}
+	runtime.GC()
+	DumpMemProf(f)
+	f.Close()
+}
+
+func avg(items []time.Duration) time.Duration {
+	var sum time.Duration
+	for _, item := range items {
+		sum += item
+	}
+	return time.Duration(int64(sum) / int64(len(items)))
+}
+
+func dumpGC(memStats *runtime.MemStats, gcstats *debug.GCStats, w io.Writer) {
+
+	if gcstats.NumGC > 0 {
+		lastPause := gcstats.Pause[0]
+		elapsed := time.Now().Sub(startTime)
+		overhead := float64(gcstats.PauseTotal) / float64(elapsed) * 100
+		allocatedRate := float64(memStats.TotalAlloc) / elapsed.Seconds()
+
+		fmt.Fprintf(w, "NumGC:%d Pause:%s Pause(Avg):%s Overhead:%3.2f%% Alloc:%s Sys:%s Alloc(Rate):%s/s Histogram:%s %s %s \n",
+			gcstats.NumGC,
+			com.ToStr(lastPause),
+			com.ToStr(avg(gcstats.Pause)),
+			overhead,
+			com.HumaneFileSize(memStats.Alloc),
+			com.HumaneFileSize(memStats.Sys),
+			com.HumaneFileSize(uint64(allocatedRate)),
+			com.ToStr(gcstats.PauseQuantiles[94]),
+			com.ToStr(gcstats.PauseQuantiles[98]),
+			com.ToStr(gcstats.PauseQuantiles[99]))
+	} else {
+		// while GC has disabled
+		elapsed := time.Now().Sub(startTime)
+		allocatedRate := float64(memStats.TotalAlloc) / elapsed.Seconds()
+
+		fmt.Fprintf(w, "Alloc:%s Sys:%s Alloc(Rate):%s/s\n",
+			com.HumaneFileSize(memStats.Alloc),
+			com.HumaneFileSize(memStats.Sys),
+			com.HumaneFileSize(uint64(allocatedRate)))
+	}
+}
+
+// DumpGCSummary dumps GC information to io.Writer
+func DumpGCSummary(w io.Writer) {
+	memStats := &runtime.MemStats{}
+	runtime.ReadMemStats(memStats)
+	gcstats := &debug.GCStats{PauseQuantiles: make([]time.Duration, 100)}
+	debug.ReadGCStats(gcstats)
+
+	dumpGC(memStats, gcstats, w)
+}
+
+func handleProfile(ctx *macaron.Context) string {
+	switch ctx.Query("op") {
+	case "startcpu":
+		if err := StartCPUProfile(); err != nil {
+			return err.Error()
+		}
+	case "stopcpu":
+		if err := StopCPUProfile(); err != nil {
+			return err.Error()
+		}
+	case "mem":
+		dumpMemProf()
+	case "gc":
+		var buf bytes.Buffer
+		DumpGCSummary(&buf)
+		return string(buf.Bytes())
+	default:
+		return fmt.Sprintf(`<p>Available operations:</p>
+<ol>
+	<li><a href="%[1]s?op=startcpu">Start CPU profile</a></li>
+	<li><a href="%[1]s?op=stopcpu">Stop CPU profile</a></li>
+	<li><a href="%[1]s?op=mem">Dump memory profile</a></li>
+	<li><a href="%[1]s?op=gc">Dump GC summary</a></li>
+</ol>`, opt.ProfileURLPrefix)
+	}
+	ctx.Redirect(opt.ProfileURLPrefix)
+	return ""
+}

vendor/github.com/go-macaron/toolbox/statistic.go

@@ -0,0 +1,138 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package toolbox
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"strings"
+	"sync"
+	"time"
+)
+
+// Statistics struct
+type Statistics struct {
+	RequestUrl string
+	RequestNum int64
+	MinTime    time.Duration
+	MaxTime    time.Duration
+	TotalTime  time.Duration
+}
+
+// UrlMap contains several statistics struct to log different data
+type UrlMap struct {
+	lock        sync.RWMutex
+	LengthLimit int // limit the urlmap's length if it's equal to 0 there's no limit
+	urlmap      map[string]map[string]*Statistics
+}
+
+// add statistics task.
+// it needs request method, request url and statistics time duration
+func (m *UrlMap) AddStatistics(requestMethod, requestUrl string, requesttime time.Duration) {
+	m.lock.Lock()
+	defer m.lock.Unlock()
+
+	if method, ok := m.urlmap[requestUrl]; ok {
+		if s, ok := method[requestMethod]; ok {
+			s.RequestNum += 1
+			if s.MaxTime < requesttime {
+				s.MaxTime = requesttime
+			}
+			if s.MinTime > requesttime {
+				s.MinTime = requesttime
+			}
+			s.TotalTime += requesttime
+		} else {
+			nb := &Statistics{
+				RequestUrl: requestUrl,
+				RequestNum: 1,
+				MinTime:    requesttime,
+				MaxTime:    requesttime,
+				TotalTime:  requesttime,
+			}
+			m.urlmap[requestUrl][requestMethod] = nb
+		}
+
+	} else {
+		if m.LengthLimit > 0 && m.LengthLimit <= len(m.urlmap) {
+			return
+		}
+		methodmap := make(map[string]*Statistics)
+		nb := &Statistics{
+			RequestUrl: requestUrl,
+			RequestNum: 1,
+			MinTime:    requesttime,
+			MaxTime:    requesttime,
+			TotalTime:  requesttime,
+		}
+		methodmap[requestMethod] = nb
+		m.urlmap[requestUrl] = methodmap
+	}
+}
+
+// put url statistics result in io.Writer
+func (m *UrlMap) GetMap(w io.Writer) {
+	m.lock.RLock()
+	defer m.lock.RUnlock()
+
+	sep := fmt.Sprintf("+%s+%s+%s+%s+%s+%s+%s+\n", strings.Repeat("-", 51), strings.Repeat("-", 12),
+		strings.Repeat("-", 18), strings.Repeat("-", 18), strings.Repeat("-", 18), strings.Repeat("-", 18), strings.Repeat("-", 18))
+	fmt.Fprintf(w, sep)
+	fmt.Fprintf(w, "| % -50s| % -10s | % -16s | % -16s | % -16s | % -16s | % -16s |\n", "Request URL", "Method", "Times", "Total Used(s)", "Max Used(μs)", "Min Used(μs)", "Avg Used(μs)")
+	fmt.Fprintf(w, sep)
+
+	for k, v := range m.urlmap {
+		for kk, vv := range v {
+			fmt.Fprintf(w, "| % -50s| % -10s | % 16d | % 16f | % 16.6f | % 16.6f | % 16.6f |\n", k,
+				kk, vv.RequestNum, vv.TotalTime.Seconds(), float64(vv.MaxTime.Nanoseconds())/1000,
+				float64(vv.MinTime.Nanoseconds())/1000, float64(time.Duration(int64(vv.TotalTime)/vv.RequestNum).Nanoseconds())/1000,
+			)
+		}
+	}
+	fmt.Fprintf(w, sep)
+}
+
+type URLMapInfo struct {
+	URL       string  `json:"url"`
+	Method    string  `json:"method"`
+	Times     int64   `json:"times"`
+	TotalUsed float64 `json:"total_used"`
+	MaxUsed   float64 `json:"max_used"`
+	MinUsed   float64 `json:"min_used"`
+	AvgUsed   float64 `json:"avg_used"`
+}
+
+func (m *UrlMap) JSON(w io.Writer) {
+	infos := make([]*URLMapInfo, 0, len(m.urlmap))
+	for k, v := range m.urlmap {
+		for kk, vv := range v {
+			infos = append(infos, &URLMapInfo{
+				URL:       k,
+				Method:    kk,
+				Times:     vv.RequestNum,
+				TotalUsed: vv.TotalTime.Seconds(),
+				MaxUsed:   float64(vv.MaxTime.Nanoseconds()) / 1000,
+				MinUsed:   float64(vv.MinTime.Nanoseconds()) / 1000,
+				AvgUsed:   float64(time.Duration(int64(vv.TotalTime)/vv.RequestNum).Nanoseconds()) / 1000,
+			})
+		}
+	}
+
+	if err := json.NewEncoder(w).Encode(infos); err != nil {
+		panic("URLMap.JSON: " + err.Error())
+	}
+}

vendor/github.com/go-macaron/toolbox/toolbox.go

@@ -0,0 +1,154 @@
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+// Package toolbox is a middleware that provides health check, pprof, profile and statistic services for Macaron.
+package toolbox
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/pprof"
+	"path"
+	"time"
+
+	"gopkg.in/macaron.v1"
+)
+
+const _VERSION = "0.1.2"
+
+func Version() string {
+	return _VERSION
+}
+
+// Toolbox represents a tool box service for Macaron instance.
+type Toolbox interface {
+	AddHealthCheck(HealthChecker)
+	AddHealthCheckFunc(string, HealthCheckFunc)
+	AddStatistics(string, string, time.Duration)
+	GetMap(io.Writer)
+	JSON(io.Writer)
+}
+
+type toolbox struct {
+	*UrlMap
+	healthCheckJobs []*healthCheck
+}
+
+// Options represents a struct for specifying configuration options for the Toolbox middleware.
+type Options struct {
+	// URL prefix for toolbox dashboard. Default is "/debug".
+	URLPrefix string
+	// URL for health check request. Default is "/healthcheck".
+	HealthCheckURL string
+	// Health checkers.
+	HealthCheckers []HealthChecker
+	// Health check functions.
+	HealthCheckFuncs []*HealthCheckFuncDesc
+	// URL for URL map json. Default is "/urlmap.json".
+	URLMapPrefix string
+	// URL prefix of pprof. Default is "/debug/pprof/".
+	PprofURLPrefix string
+	// URL prefix of profile. Default is "/debug/profile/".
+	ProfileURLPrefix string
+	// Path store profile files. Default is "profile".
+	ProfilePath string
+}
+
+var opt Options
+
+func prepareOptions(options []Options) {
+	if len(options) > 0 {
+		opt = options[0]
+	}
+
+	// Defaults.
+	if len(opt.URLPrefix) == 0 {
+		opt.URLPrefix = "/debug"
+	}
+	if len(opt.HealthCheckURL) == 0 {
+		opt.HealthCheckURL = "/healthcheck"
+	}
+	if len(opt.URLMapPrefix) == 0 {
+		opt.URLMapPrefix = "/urlmap.json"
+	}
+	if len(opt.PprofURLPrefix) == 0 {
+		opt.PprofURLPrefix = "/debug/pprof/"
+	} else if opt.PprofURLPrefix[len(opt.PprofURLPrefix)-1] != '/' {
+		opt.PprofURLPrefix += "/"
+	}
+	if len(opt.ProfileURLPrefix) == 0 {
+		opt.ProfileURLPrefix = "/debug/profile/"
+	} else if opt.ProfileURLPrefix[len(opt.ProfileURLPrefix)-1] != '/' {
+		opt.ProfileURLPrefix += "/"
+	}
+	if len(opt.ProfilePath) == 0 {
+		opt.ProfilePath = path.Join(macaron.Root, "profile")
+	}
+}
+
+func dashboard(ctx *macaron.Context) string {
+	return fmt.Sprintf(`<p>Toolbox Index:</p>
+	<ol>
+	    <li><a href="%s">Pprof Information</a></li>
+        <li><a href="%s">Profile Operations</a></li>
+	</ol>`, opt.PprofURLPrefix, opt.ProfileURLPrefix)
+}
+
+var _ Toolbox = &toolbox{}
+
+// Toolboxer is a middleware provides health check, pprof, profile and statistic services for your application.
+func Toolboxer(m *macaron.Macaron, options ...Options) macaron.Handler {
+	prepareOptions(options)
+	t := &toolbox{
+		healthCheckJobs: make([]*healthCheck, 0, len(opt.HealthCheckers)+len(opt.HealthCheckFuncs)),
+	}
+
+	// Dashboard.
+	m.Get(opt.URLPrefix, dashboard)
+
+	// Health check.
+	for _, hc := range opt.HealthCheckers {
+		t.AddHealthCheck(hc)
+	}
+	for _, fd := range opt.HealthCheckFuncs {
+		t.AddHealthCheckFunc(fd.Desc, fd.Func)
+	}
+	m.Get(opt.HealthCheckURL, t.handleHealthCheck)
+
+	// URL map.
+	m.Get(opt.URLMapPrefix, func(rw http.ResponseWriter) {
+		t.JSON(rw)
+	})
+
+	// Pprof.
+	m.Any(path.Join(opt.PprofURLPrefix, "cmdline"), pprof.Cmdline)
+	m.Any(path.Join(opt.PprofURLPrefix, "profile"), pprof.Profile)
+	m.Any(path.Join(opt.PprofURLPrefix, "symbol"), pprof.Symbol)
+	m.Any(opt.PprofURLPrefix, pprof.Index)
+	m.Any(path.Join(opt.PprofURLPrefix, "*"), pprof.Index)
+
+	// Profile.
+	profilePath = opt.ProfilePath
+	m.Get(opt.ProfileURLPrefix, handleProfile)
+
+	// Routes statistic.
+	t.UrlMap = &UrlMap{
+		urlmap: make(map[string]map[string]*Statistics),
+	}
+
+	return func(ctx *macaron.Context) {
+		ctx.MapTo(t, (*Toolbox)(nil))
+	}
+}