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Convert files to utf-8 for indexing (#7814) 

* Convert files to utf-8 for indexing

* Move utf8 functions to modules/base

* Bump repoIndexerLatestVersion to 3

* Add tests for base/encoding.go

* Changes to pass gosimple

* Move UTF8 funcs into new modules/charset package
This commit is contained in:
guillep2k 2019-08-15 09:07:28 -03:00 committed by Lunny Xiao
parent c2c35d169c
commit 5a44be627c
13 changed files with 371 additions and 166 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
integrations/migration-test/migration_test.go
View File

@ -20,6 +20,7 @@ import (
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/models/migrations"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/charset"
"code.gitea.io/gitea/modules/setting"
"github.com/go-xorm/xorm"
@ -106,7 +107,7 @@ func readSQLFromFile(version string) (string, error) {
if err != nil {
return "", err
}
return string(base.RemoveBOMIfPresent(bytes)), nil
return string(charset.RemoveBOMIfPresent(bytes)), nil
}
func restoreOldDB(t *testing.T, version string) bool {

8
models/git_diff.go
View File

@ -19,7 +19,7 @@ import (
"strconv"
"strings"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/charset"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/highlight"
"code.gitea.io/gitea/modules/log"
@ -27,7 +27,7 @@ import (
"code.gitea.io/gitea/modules/setting"
"github.com/Unknwon/com"
"github.com/sergi/go-diff/diffmatchpatch"
"golang.org/x/net/html/charset"
stdcharset "golang.org/x/net/html/charset"
"golang.org/x/text/transform"
)
@ -641,9 +641,9 @@ func ParsePatch(maxLines, maxLineCharacters, maxFiles int, reader io.Reader) (*D
buf.WriteString("\n")
}
}
charsetLabel, err := base.DetectEncoding(buf.Bytes())
charsetLabel, err := charset.DetectEncoding(buf.Bytes())
if charsetLabel != "UTF-8" && err == nil {
encoding, _ := charset.Lookup(charsetLabel)
encoding, _ := stdcharset.Lookup(charsetLabel)
if encoding != nil {
d := encoding.NewDecoder()
for _, sec := range f.Sections {

4
models/repo_indexer.go
View File

@ -10,6 +10,7 @@ import (
"strings"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/charset"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/indexer"
"code.gitea.io/gitea/modules/log"
@ -207,6 +208,7 @@ func addUpdate(update fileUpdate, repo *Repository, batch rupture.FlushingBatch)
if err != nil {
return err
} else if !base.IsTextFile(fileContents) {
// FIXME: UTF-16 files will probably fail here
return nil
}
indexerUpdate := indexer.RepoIndexerUpdate{
@ -214,7 +216,7 @@ func addUpdate(update fileUpdate, repo *Repository, batch rupture.FlushingBatch)
Op: indexer.RepoIndexerOpUpdate,
Data: &indexer.RepoIndexerData{
RepoID: repo.ID,
Content: string(fileContents),
Content: string(charset.ToUTF8DropErrors(fileContents)),
},
}
return indexerUpdate.AddToFlushingBatch(batch)

49
modules/base/tool.go
View File

@ -5,7 +5,6 @@
package base
import (
"bytes"
"crypto/md5"
"crypto/rand"
"crypto/sha1"
@ -26,7 +25,6 @@ import (
"strings"
"time"
"unicode"
"unicode/utf8"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
@ -35,12 +33,8 @@ import (
"github.com/Unknwon/com"
"github.com/Unknwon/i18n"
"github.com/gogits/chardet"
)
// UTF8BOM is the utf-8 byte-order marker
var UTF8BOM = []byte{'\xef', '\xbb', '\xbf'}
// EncodeMD5 encodes string to md5 hex value.
func EncodeMD5(str string) string {
m := md5.New()
@ -68,49 +62,6 @@ func ShortSha(sha1 string) string {
return TruncateString(sha1, 10)
}
// DetectEncoding detect the encoding of content
func DetectEncoding(content []byte) (string, error) {
if utf8.Valid(content) {
log.Debug("Detected encoding: utf-8 (fast)")
return "UTF-8", nil
}
textDetector := chardet.NewTextDetector()
var detectContent []byte
if len(content) < 1024 {
// Check if original content is valid
if _, err := textDetector.DetectBest(content); err != nil {
return "", err
}
times := 1024 / len(content)
detectContent = make([]byte, 0, times*len(content))
for i := 0; i < times; i++ {
detectContent = append(detectContent, content...)
}
} else {
detectContent = content
}
result, err := textDetector.DetectBest(detectContent)
if err != nil {
return "", err
}
if result.Charset != "UTF-8" && len(setting.Repository.AnsiCharset) > 0 {
log.Debug("Using default AnsiCharset: %s", setting.Repository.AnsiCharset)
return setting.Repository.AnsiCharset, err
}
log.Debug("Detected encoding: %s", result.Charset)
return result.Charset, err
}
// RemoveBOMIfPresent removes a UTF-8 BOM from a []byte
func RemoveBOMIfPresent(content []byte) []byte {
if len(content) > 2 && bytes.Equal(content[0:3], UTF8BOM) {
return content[3:]
}
return content
}
// BasicAuthDecode decode basic auth string
func BasicAuthDecode(encoded string) (string, string, error) {
s, err := base64.StdEncoding.DecodeString(encoded)

36
modules/base/tool_test.go
View File

@ -64,42 +64,6 @@ func TestShortSha(t *testing.T) {
assert.Equal(t, "veryverylo", ShortSha("veryverylong"))
}
func TestDetectEncoding(t *testing.T) {
testSuccess := func(b []byte, expected string) {
encoding, err := DetectEncoding(b)
assert.NoError(t, err)
assert.Equal(t, expected, encoding)
}
// utf-8
b := []byte("just some ascii")
testSuccess(b, "UTF-8")
// utf-8-sig: "hey" (with BOM)
b = []byte{0xef, 0xbb, 0xbf, 0x68, 0x65, 0x79}
testSuccess(b, "UTF-8")
// utf-16: "hey<accented G>"
b = []byte{0xff, 0xfe, 0x68, 0x00, 0x65, 0x00, 0x79, 0x00, 0xf4, 0x01}
testSuccess(b, "UTF-16LE")
// iso-8859-1: d<accented e>cor<newline>
b = []byte{0x44, 0xe9, 0x63, 0x6f, 0x72, 0x0a}
encoding, err := DetectEncoding(b)
assert.NoError(t, err)
// due to a race condition in `chardet` library, it could either detect
// "ISO-8859-1" or "IS0-8859-2" here. Technically either is correct, so
// we accept either.
assert.Contains(t, encoding, "ISO-8859")
setting.Repository.AnsiCharset = "placeholder"
testSuccess(b, "placeholder")
// invalid bytes
b = []byte{0xfa}
_, err = DetectEncoding(b)
assert.Error(t, err)
}
func TestBasicAuthDecode(t *testing.T) {
_, _, err := BasicAuthDecode("?")
assert.Equal(t, "illegal base64 data at input byte 0", err.Error())

152
modules/charset/charset.go Normal file
View File

@ -0,0 +1,152 @@
// Copyright 2014 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package charset
import (
"bytes"
"fmt"
"unicode/utf8"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"github.com/gogits/chardet"
"golang.org/x/net/html/charset"
"golang.org/x/text/transform"
)
// UTF8BOM is the utf-8 byte-order marker
var UTF8BOM = []byte{'\xef', '\xbb', '\xbf'}
// ToUTF8WithErr converts content to UTF8 encoding
func ToUTF8WithErr(content []byte) (string, error) {
charsetLabel, err := DetectEncoding(content)
if err != nil {
return "", err
} else if charsetLabel == "UTF-8" {
return string(RemoveBOMIfPresent(content)), nil
}
encoding, _ := charset.Lookup(charsetLabel)
if encoding == nil {
return string(content), fmt.Errorf("Unknown encoding: %s", charsetLabel)
}
// If there is an error, we concatenate the nicely decoded part and the
// original left over. This way we won't lose data.
result, n, err := transform.Bytes(encoding.NewDecoder(), content)
if err != nil {
result = append(result, content[n:]...)
}
result = RemoveBOMIfPresent(result)
return string(result), err
}
// ToUTF8WithFallback detects the encoding of content and coverts to UTF-8 if possible
func ToUTF8WithFallback(content []byte) []byte {
charsetLabel, err := DetectEncoding(content)
if err != nil || charsetLabel == "UTF-8" {
return RemoveBOMIfPresent(content)
}
encoding, _ := charset.Lookup(charsetLabel)
if encoding == nil {
return content
}
// If there is an error, we concatenate the nicely decoded part and the
// original left over. This way we won't lose data.
result, n, err := transform.Bytes(encoding.NewDecoder(), content)
if err != nil {
return append(result, content[n:]...)
}
return RemoveBOMIfPresent(result)
}
// ToUTF8 converts content to UTF8 encoding and ignore error
func ToUTF8(content string) string {
res, _ := ToUTF8WithErr([]byte(content))
return res
}
// ToUTF8DropErrors makes sure the return string is valid utf-8; attempts conversion if possible
func ToUTF8DropErrors(content []byte) []byte {
charsetLabel, err := DetectEncoding(content)
if err != nil || charsetLabel == "UTF-8" {
return RemoveBOMIfPresent(content)
}
encoding, _ := charset.Lookup(charsetLabel)
if encoding == nil {
return content
}
// We ignore any non-decodable parts from the file.
// Some parts might be lost
var decoded []byte
decoder := encoding.NewDecoder()
idx := 0
for {
result, n, err := transform.Bytes(decoder, content[idx:])
decoded = append(decoded, result...)
if err == nil {
break
}
decoded = append(decoded, ' ')
idx = idx + n + 1
if idx >= len(content) {
break
}
}
return RemoveBOMIfPresent(decoded)
}
// RemoveBOMIfPresent removes a UTF-8 BOM from a []byte
func RemoveBOMIfPresent(content []byte) []byte {
if len(content) > 2 && bytes.Equal(content[0:3], UTF8BOM) {
return content[3:]
}
return content
}
// DetectEncoding detect the encoding of content
func DetectEncoding(content []byte) (string, error) {
if utf8.Valid(content) {
log.Debug("Detected encoding: utf-8 (fast)")
return "UTF-8", nil
}
textDetector := chardet.NewTextDetector()
var detectContent []byte
if len(content) < 1024 {
// Check if original content is valid
if _, err := textDetector.DetectBest(content); err != nil {
return "", err
}
times := 1024 / len(content)
detectContent = make([]byte, 0, times*len(content))
for i := 0; i < times; i++ {
detectContent = append(detectContent, content...)
}
} else {
detectContent = content
}
result, err := textDetector.DetectBest(detectContent)
if err != nil {
return "", err
}
// FIXME: to properly decouple this function the fallback ANSI charset should be passed as an argument
if result.Charset != "UTF-8" && len(setting.Repository.AnsiCharset) > 0 {
log.Debug("Using default AnsiCharset: %s", setting.Repository.AnsiCharset)
return setting.Repository.AnsiCharset, err
}
log.Debug("Detected encoding: %s", result.Charset)
return result.Charset, err
}

191
modules/charset/charset_test.go Normal file
View File

@ -0,0 +1,191 @@
// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package charset
import (
"testing"
"code.gitea.io/gitea/modules/setting"
"github.com/stretchr/testify/assert"
)
func TestRemoveBOMIfPresent(t *testing.T) {
res := RemoveBOMIfPresent([]byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba})
assert.Equal(t, []byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, res)
res = RemoveBOMIfPresent([]byte{0xef, 0xbb, 0xbf, 0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba})
assert.Equal(t, []byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, res)
}
func TestToUTF8WithErr(t *testing.T) {
var res string
var err error
res, err = ToUTF8WithErr([]byte{0x41, 0x42, 0x43})
assert.Equal(t, "ABC", res)
assert.NoError(t, err)
res, err = ToUTF8WithErr([]byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba})
assert.Equal(t, "áéíóú", res)
assert.NoError(t, err)
res, err = ToUTF8WithErr([]byte{0xef, 0xbb, 0xbf, 0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba})
assert.Equal(t, "áéíóú", res)
assert.NoError(t, err)
// This test FAILS
res, err = ToUTF8WithErr([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0xF1, 0x6F, 0x73})
assert.Equal(t, "Hola, así cómo ños", res)
assert.NoError(t, err)
res, err = ToUTF8WithErr([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0x07, 0xA4, 0x6F, 0x73})
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
assert.Regexp(t, "^Hola, así cómo", res)
assert.NoError(t, err)
res, err = ToUTF8WithErr([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0x81, 0xA4, 0x6F, 0x73})
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
assert.Regexp(t, "^Hola, así cómo", res)
assert.NoError(t, err)
// Japanese (Shift-JIS)
res, err = ToUTF8WithErr([]byte{0x93, 0xFA, 0x91, 0xAE, 0x94, 0xE9, 0x82, 0xBC, 0x82, 0xB5, 0x82, 0xBF, 0x82, 0xE3, 0x81, 0x42})
assert.Equal(t, "日属秘ぞしちゅ。", res)
assert.NoError(t, err)
res, err = ToUTF8WithErr([]byte{0x00, 0x00, 0x00, 0x00})
assert.Equal(t, "\x00\x00\x00\x00", res)
assert.NoError(t, err)
}
func TestToUTF8WithFallback(t *testing.T) {
res := ToUTF8WithFallback([]byte{0x41, 0x42, 0x43})
assert.Equal(t, []byte("ABC"), res)
res = ToUTF8WithFallback([]byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba})
assert.Equal(t, []byte("áéíóú"), res)
res = ToUTF8WithFallback([]byte{0xef, 0xbb, 0xbf, 0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba})
assert.Equal(t, []byte("áéíóú"), res)
res = ToUTF8WithFallback([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0xF1, 0x6F, 0x73})
assert.Equal(t, []byte("Hola, así cómo ños"), res)
minmatch := []byte("Hola, así cómo ")
res = ToUTF8WithFallback([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0x07, 0xA4, 0x6F, 0x73})
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
assert.Equal(t, minmatch, res[0:len(minmatch)])
res = ToUTF8WithFallback([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0x81, 0xA4, 0x6F, 0x73})
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
assert.Equal(t, minmatch, res[0:len(minmatch)])
// Japanese (Shift-JIS)
res = ToUTF8WithFallback([]byte{0x93, 0xFA, 0x91, 0xAE, 0x94, 0xE9, 0x82, 0xBC, 0x82, 0xB5, 0x82, 0xBF, 0x82, 0xE3, 0x81, 0x42})
assert.Equal(t, []byte("日属秘ぞしちゅ。"), res)
res = ToUTF8WithFallback([]byte{0x00, 0x00, 0x00, 0x00})
assert.Equal(t, []byte{0x00, 0x00, 0x00, 0x00}, res)
}
func TestToUTF8(t *testing.T) {
res := ToUTF8("ABC")
assert.Equal(t, "ABC", res)
res = ToUTF8("áéíóú")
assert.Equal(t, "áéíóú", res)
// With utf-8 BOM
res = ToUTF8("\ufeffáéíóú")
assert.Equal(t, "áéíóú", res)
res = ToUTF8("Hola, así cómo ños")
assert.Equal(t, "Hola, así cómo ños", res)
res = ToUTF8("Hola, así cómo \x07ños")
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
assert.Regexp(t, "^Hola, así cómo", res)
// This test FAILS
// res = ToUTF8("Hola, así cómo \x81ños")
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
// assert.Regexp(t, "^Hola, así cómo", res)
// Japanese (Shift-JIS)
res = ToUTF8("\x93\xFA\x91\xAE\x94\xE9\x82\xBC\x82\xB5\x82\xBF\x82\xE3\x81\x42")
assert.Equal(t, "日属秘ぞしちゅ。", res)
res = ToUTF8("\x00\x00\x00\x00")
assert.Equal(t, "\x00\x00\x00\x00", res)
}
func TestToUTF8DropErrors(t *testing.T) {
res := ToUTF8DropErrors([]byte{0x41, 0x42, 0x43})
assert.Equal(t, []byte("ABC"), res)
res = ToUTF8DropErrors([]byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba})
assert.Equal(t, []byte("áéíóú"), res)
res = ToUTF8DropErrors([]byte{0xef, 0xbb, 0xbf, 0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba})
assert.Equal(t, []byte("áéíóú"), res)
res = ToUTF8DropErrors([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0xF1, 0x6F, 0x73})
assert.Equal(t, []byte("Hola, así cómo ños"), res)
minmatch := []byte("Hola, así cómo ")
res = ToUTF8DropErrors([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0x07, 0xA4, 0x6F, 0x73})
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
assert.Equal(t, minmatch, res[0:len(minmatch)])
res = ToUTF8DropErrors([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0x81, 0xA4, 0x6F, 0x73})
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
assert.Equal(t, minmatch, res[0:len(minmatch)])
// Japanese (Shift-JIS)
res = ToUTF8DropErrors([]byte{0x93, 0xFA, 0x91, 0xAE, 0x94, 0xE9, 0x82, 0xBC, 0x82, 0xB5, 0x82, 0xBF, 0x82, 0xE3, 0x81, 0x42})
assert.Equal(t, []byte("日属秘ぞしちゅ。"), res)
res = ToUTF8DropErrors([]byte{0x00, 0x00, 0x00, 0x00})
assert.Equal(t, []byte{0x00, 0x00, 0x00, 0x00}, res)
}
func TestDetectEncoding(t *testing.T) {
testSuccess := func(b []byte, expected string) {
encoding, err := DetectEncoding(b)
assert.NoError(t, err)
assert.Equal(t, expected, encoding)
}
// utf-8
b := []byte("just some ascii")
testSuccess(b, "UTF-8")
// utf-8-sig: "hey" (with BOM)
b = []byte{0xef, 0xbb, 0xbf, 0x68, 0x65, 0x79}
testSuccess(b, "UTF-8")
// utf-16: "hey<accented G>"
b = []byte{0xff, 0xfe, 0x68, 0x00, 0x65, 0x00, 0x79, 0x00, 0xf4, 0x01}
testSuccess(b, "UTF-16LE")
// iso-8859-1: d<accented e>cor<newline>
b = []byte{0x44, 0xe9, 0x63, 0x6f, 0x72, 0x0a}
encoding, err := DetectEncoding(b)
assert.NoError(t, err)
// due to a race condition in `chardet` library, it could either detect
// "ISO-8859-1" or "IS0-8859-2" here. Technically either is correct, so
// we accept either.
assert.Contains(t, encoding, "ISO-8859")
setting.Repository.AnsiCharset = "placeholder"
testSuccess(b, "placeholder")
// invalid bytes
b = []byte{0xfa}
_, err = DetectEncoding(b)
assert.Error(t, err)
}

2
modules/indexer/repo.go
View File

@ -23,7 +23,7 @@ const (
repoIndexerAnalyzer = "repoIndexerAnalyzer"
repoIndexerDocType = "repoIndexerDocType"
repoIndexerLatestVersion = 2
repoIndexerLatestVersion = 3
)
// repoIndexer (thread-safe) index for repository contents

20
modules/repofiles/update.go
View File

@ -11,17 +11,17 @@ import (
"path"
"strings"
"golang.org/x/net/html/charset"
"golang.org/x/text/transform"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/cache"
"code.gitea.io/gitea/modules/charset"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/lfs"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/structs"
stdcharset "golang.org/x/net/html/charset"
"golang.org/x/text/transform"
)
// IdentityOptions for a person's identity like an author or committer
@ -87,15 +87,15 @@ func detectEncodingAndBOM(entry *git.TreeEntry, repo *models.Repository) (string
}
encoding, err := base.DetectEncoding(buf)
encoding, err := charset.DetectEncoding(buf)
if err != nil {
// just default to utf-8 and no bom
return "UTF-8", false
}
if encoding == "UTF-8" {
return encoding, bytes.Equal(buf[0:3], base.UTF8BOM)
return encoding, bytes.Equal(buf[0:3], charset.UTF8BOM)
}
charsetEncoding, _ := charset.Lookup(encoding)
charsetEncoding, _ := stdcharset.Lookup(encoding)
if charsetEncoding == nil {
return "UTF-8", false
}
@ -107,7 +107,7 @@ func detectEncodingAndBOM(entry *git.TreeEntry, repo *models.Repository) (string
}
if n > 2 {
return encoding, bytes.Equal([]byte(result)[0:3], base.UTF8BOM)
return encoding, bytes.Equal([]byte(result)[0:3], charset.UTF8BOM)
}
return encoding, false
@ -321,10 +321,10 @@ func CreateOrUpdateRepoFile(repo *models.Repository, doer *models.User, opts *Up
content := opts.Content
if bom {
content = string(base.UTF8BOM) + content
content = string(charset.UTF8BOM) + content
}
if encoding != "UTF-8" {
charsetEncoding, _ := charset.Lookup(encoding)
charsetEncoding, _ := stdcharset.Lookup(encoding)
if charsetEncoding != nil {
result, _, err := transform.String(charsetEncoding.NewEncoder(), content)
if err != nil {

56
modules/templates/helper.go
View File

@ -28,8 +28,6 @@ import (
"code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/setting"
"golang.org/x/net/html/charset"
"golang.org/x/text/transform"
"gopkg.in/editorconfig/editorconfig-core-go.v1"
)
@ -274,60 +272,6 @@ func Sha1(str string) string {
return base.EncodeSha1(str)
}
// ToUTF8WithErr converts content to UTF8 encoding
func ToUTF8WithErr(content []byte) (string, error) {
charsetLabel, err := base.DetectEncoding(content)
if err != nil {
return "", err
} else if charsetLabel == "UTF-8" {
return string(base.RemoveBOMIfPresent(content)), nil
}
encoding, _ := charset.Lookup(charsetLabel)
if encoding == nil {
return string(content), fmt.Errorf("Unknown encoding: %s", charsetLabel)
}
// If there is an error, we concatenate the nicely decoded part and the
// original left over. This way we won't lose data.
result, n, err := transform.Bytes(encoding.NewDecoder(), content)
if err != nil {
result = append(result, content[n:]...)
}
result = base.RemoveBOMIfPresent(result)
return string(result), err
}
// ToUTF8WithFallback detects the encoding of content and coverts to UTF-8 if possible
func ToUTF8WithFallback(content []byte) []byte {
charsetLabel, err := base.DetectEncoding(content)
if err != nil || charsetLabel == "UTF-8" {
return base.RemoveBOMIfPresent(content)
}
encoding, _ := charset.Lookup(charsetLabel)
if encoding == nil {
return content
}
// If there is an error, we concatenate the nicely decoded part and the
// original left over. This way we won't lose data.
result, n, err := transform.Bytes(encoding.NewDecoder(), content)
if err != nil {
return append(result, content[n:]...)
}
return base.RemoveBOMIfPresent(result)
}
// ToUTF8 converts content to UTF8 encoding and ignore error
func ToUTF8(content string) string {
res, _ := ToUTF8WithErr([]byte(content))
return res
}
// ReplaceLeft replaces all prefixes 'oldS' in 's' with 'newS'.
func ReplaceLeft(s, oldS, newS string) string {
oldLen, newLen, i, n := len(oldS), len(newS), 0, 0

4
routers/repo/commit.go
View File

@ -11,11 +11,11 @@ import (
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/charset"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/templates"
)
const (
@ -251,7 +251,7 @@ func Diff(ctx *context.Context) {
note := &git.Note{}
err = git.GetNote(ctx.Repo.GitRepo, commitID, note)
if err == nil {
ctx.Data["Note"] = string(templates.ToUTF8WithFallback(note.Message))
ctx.Data["Note"] = string(charset.ToUTF8WithFallback(note.Message))
ctx.Data["NoteCommit"] = note.Commit
ctx.Data["NoteAuthor"] = models.ValidateCommitWithEmail(note.Commit)
}

4
routers/repo/editor.go
View File

@ -14,12 +14,12 @@ import (
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/auth"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/charset"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/repofiles"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/templates"
"code.gitea.io/gitea/modules/upload"
"code.gitea.io/gitea/modules/util"
)
@ -118,7 +118,7 @@ func editFile(ctx *context.Context, isNewFile bool) {
d, _ := ioutil.ReadAll(dataRc)
buf = append(buf, d...)
if content, err := templates.ToUTF8WithErr(buf); err != nil {
if content, err := charset.ToUTF8WithErr(buf); err != nil {
log.Error("ToUTF8WithErr: %v", err)
ctx.Data["FileContent"] = string(buf)
} else {

8
routers/repo/view.go
View File

@ -16,6 +16,7 @@ import (
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/charset"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/highlight"
@ -23,7 +24,6 @@ import (
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/templates"
)
const (
@ -160,7 +160,7 @@ func renderDirectory(ctx *context.Context, treeLink string) {
ctx.Data["FileSize"] = fileSize
} else {
d, _ := ioutil.ReadAll(dataRc)
buf = templates.ToUTF8WithFallback(append(buf, d...))
buf = charset.ToUTF8WithFallback(append(buf, d...))
if markup.Type(readmeFile.Name()) != "" {
ctx.Data["IsMarkup"] = true
@ -278,7 +278,7 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
}
d, _ := ioutil.ReadAll(dataRc)
buf = templates.ToUTF8WithFallback(append(buf, d...))
buf = charset.ToUTF8WithFallback(append(buf, d...))
readmeExist := markup.IsReadmeFile(blob.Name())
ctx.Data["ReadmeExist"] = readmeExist
@ -293,7 +293,7 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
} else {
// Building code view blocks with line number on server side.
var fileContent string
if content, err := templates.ToUTF8WithErr(buf); err != nil {
if content, err := charset.ToUTF8WithErr(buf); err != nil {
log.Error("ToUTF8WithErr: %v", err)
fileContent = string(buf)
} else {