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Recover panic in orgmode.Render if bad orgfile (#4982) (#5903)

This PR protects against the panic referred to in chaseadmsio/goorgeous#82
by recovering from the panic and just returning the raw bytes if
there is an error.

Signed-off-by: Andrew Thornton <art27@cantab.net>
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zeripath authored and techknowlogick committed Jan 30, 2019
1 parent ca00ca8 commit 0823791d1793dc28b0c374dd332e9d1b24acfee1
Showing with 10 additions and 4 deletions.
  1. +10 −4 modules/markup/orgmode/orgmode.go
@@ -5,6 +5,7 @@
package markup

import (
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/markup/markdown"

@@ -31,7 +32,13 @@ func (Parser) Extensions() []string {
}

// Render renders orgmode rawbytes to HTML
func Render(rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte {
func Render(rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) (result []byte) {
defer func() {
if err := recover(); err != nil {
log.Error(4, "Panic in orgmode.Render: %v Just returning the rawBytes", err)
result = rawBytes
}
}()
htmlFlags := blackfriday.HTML_USE_XHTML
htmlFlags |= blackfriday.HTML_SKIP_STYLE
htmlFlags |= blackfriday.HTML_OMIT_CONTENTS
@@ -40,9 +47,8 @@ func Render(rawBytes []byte, urlPrefix string, metas map[string]string, isWiki b
URLPrefix: urlPrefix,
IsWiki: isWiki,
}

result := goorgeous.Org(rawBytes, renderer)
return result
result = goorgeous.Org(rawBytes, renderer)
return
}

// RenderString reners orgmode string to HTML string

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