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Refactor renders (#15175)

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* Refactor renders

* Some performance optimization

* Fix comment

* Transform reader

* Fix csv test

* Fix test

* Fix tests

* Improve optimaziation

* Fix test

* Fix test

* Detect file encoding with reader

* Improve optimaziation

* reduce memory usage

* improve code

* fix build

* Fix test

* Fix for go1.15

* Fix render

* Fix comment

* Fix lint

* Fix test

* Don't use NormalEOF when unnecessary

* revert change on util.go

* Apply suggestions from code review

Co-authored-by: zeripath <art27@cantab.net>

* rename function

* Take NormalEOF back

Co-authored-by: zeripath <art27@cantab.net>
This commit is contained in:
Lunny Xiao
2021-04-20 06:25:08 +08:00
committed by GitHub
parent c9cc6698d2
commit 9d99f6ab19
41 changed files with 1027 additions and 627 deletions
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60
modules/markup/external/external.go vendored
View File

@@ -5,7 +5,7 @@
package external
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"os"
@@ -19,32 +19,32 @@ import (
"code.gitea.io/gitea/modules/util"
)
// RegisterParsers registers all supported third part parsers according settings
func RegisterParsers() {
for _, parser := range setting.ExternalMarkupParsers {
if parser.Enabled && parser.Command != "" && len(parser.FileExtensions) > 0 {
markup.RegisterParser(&Parser{parser})
// RegisterRenderers registers all supported third part renderers according settings
func RegisterRenderers() {
for _, renderer := range setting.ExternalMarkupRenderers {
if renderer.Enabled && renderer.Command != "" && len(renderer.FileExtensions) > 0 {
markup.RegisterRenderer(&Renderer{renderer})
}
}
}
// Parser implements markup.Parser for external tools
type Parser struct {
setting.MarkupParser
// Renderer implements markup.Renderer for external tools
type Renderer struct {
setting.MarkupRenderer
}
// Name returns the external tool name
func (p *Parser) Name() string {
func (p *Renderer) Name() string {
return p.MarkupName
}
// NeedPostProcess implements markup.Parser
func (p *Parser) NeedPostProcess() bool {
return p.MarkupParser.NeedPostProcess
// NeedPostProcess implements markup.Renderer
func (p *Renderer) NeedPostProcess() bool {
return p.MarkupRenderer.NeedPostProcess
}
// Extensions returns the supported extensions of the tool
func (p *Parser) Extensions() []string {
func (p *Renderer) Extensions() []string {
return p.FileExtensions
}
@@ -56,14 +56,10 @@ func envMark(envName string) string {
}
// Render renders the data of the document to HTML via the external tool.
func (p *Parser) Render(rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte {
func (p *Renderer) Render(ctx *markup.RenderContext, input io.Reader, output io.Writer) error {
var (
bs []byte
buf = bytes.NewBuffer(bs)
rd = bytes.NewReader(rawBytes)
urlRawPrefix = strings.Replace(urlPrefix, "/src/", "/raw/", 1)
command = strings.NewReplacer(envMark("GITEA_PREFIX_SRC"), urlPrefix,
urlRawPrefix = strings.Replace(ctx.URLPrefix, "/src/", "/raw/", 1)
command = strings.NewReplacer(envMark("GITEA_PREFIX_SRC"), ctx.URLPrefix,
envMark("GITEA_PREFIX_RAW"), urlRawPrefix).Replace(p.Command)
commands = strings.Fields(command)
args = commands[1:]
@@ -73,8 +69,7 @@ func (p *Parser) Render(rawBytes []byte, urlPrefix string, metas map[string]stri
// write to temp file
f, err := ioutil.TempFile("", "gitea_input")
if err != nil {
log.Error("%s create temp file when rendering %s failed: %v", p.Name(), p.Command, err)
return []byte("")
return fmt.Errorf("%s create temp file when rendering %s failed: %v", p.Name(), p.Command, err)
}
tmpPath := f.Name()
defer func() {
@@ -83,17 +78,15 @@ func (p *Parser) Render(rawBytes []byte, urlPrefix string, metas map[string]stri
}
}()
_, err = io.Copy(f, rd)
_, err = io.Copy(f, input)
if err != nil {
f.Close()
log.Error("%s write data to temp file when rendering %s failed: %v", p.Name(), p.Command, err)
return []byte("")
return fmt.Errorf("%s write data to temp file when rendering %s failed: %v", p.Name(), p.Command, err)
}
err = f.Close()
if err != nil {
log.Error("%s close temp file when rendering %s failed: %v", p.Name(), p.Command, err)
return []byte("")
return fmt.Errorf("%s close temp file when rendering %s failed: %v", p.Name(), p.Command, err)
}
args = append(args, f.Name())
}
@@ -101,16 +94,15 @@ func (p *Parser) Render(rawBytes []byte, urlPrefix string, metas map[string]stri
cmd := exec.Command(commands[0], args...)
cmd.Env = append(
os.Environ(),
"GITEA_PREFIX_SRC="+urlPrefix,
"GITEA_PREFIX_SRC="+ctx.URLPrefix,
"GITEA_PREFIX_RAW="+urlRawPrefix,
)
if !p.IsInputFile {
cmd.Stdin = rd
cmd.Stdin = input
}
cmd.Stdout = buf
cmd.Stdout = output
if err := cmd.Run(); err != nil {
log.Error("%s render run command %s %v failed: %v", p.Name(), commands[0], args, err)
return []byte("")
return fmt.Errorf("%s render run command %s %v failed: %v", p.Name(), commands[0], args, err)
}
return buf.Bytes()
return nil
}