Use gitea forked macaron (#7933)

Signed-off-by: Tamal Saha <tamal@appscode.com>

vendor/gitea.com/macaron/toolbox/toolbox.go

@@ -0,0 +1,158 @@
+// 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"
+
+	"gitea.com/macaron/macaron"
+)
+
+const _VERSION = "0.1.4"
+
+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
+	// DisableDebug turns off all debug functionality.
+	DisableDebug bool
+	// 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() 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.Route(opt.HealthCheckURL, "HEAD,GET", t.handleHealthCheck)
+
+	// URL map.
+	m.Get(opt.URLMapPrefix, func(rw http.ResponseWriter) {
+		t.JSON(rw)
+	})
+
+	if !opt.DisableDebug {
+		// 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))
+	}
+}