Support unicode emojis and remove emojify.js (#11032)

* Support unicode emojis and remove emojify.js

This PR replaces all use of emojify.js and adds unicode emoji support to various areas of gitea.

This works in a few ways:

First it adds emoji parsing support into gitea itself. This allows us to

 * Render emojis from valid alias (😄)
 * Detect unicode emojis and let us put them in their own class with proper aria-labels and styling
 * Easily allow for custom "emoji"
 * Support all emoji rendering and features without javascript
 * Uses plain unicode and lets the system render in appropriate emoji font
 * Doesn't leave us relying on external sources for updates/fixes/features

That same list of emoji is also used to create a json file which replaces the part of emojify.js that populates the emoji search tribute. This file is about 35KB with GZIP turned on and I've set it to load after the page renders to not hinder page load time (and this removes loading emojify.js also)

For custom "emoji" it uses a pretty simple scheme of just looking for /emojis/img/name.png where name is something a user has put in the "allowed reactions" setting we already have. The gitea reaction that was previously hard coded into a forked copy of emojify.js is included and works as a custom reaction under this method.

The emoji data sourced here is from https://github.com/github/gemoji which is the gem library Github uses for their emoji rendering (and a data source for other sites). So we should be able to easily render any emoji and :alias: that Github can, removing any errors from migrated content. They also update it as well, so we can sync when there are new unicode emoji lists released.

I've included a slimmed down and slightly modified forked copy of https://github.com/knq/emoji to make up our own emoji module. The code is pretty straight forward and again allows us to have a lot of flexibility in what happens.

I had seen a few comments about performance in some of the other threads if we render this ourselves, but there doesn't seem to be any issue here. In a test it can parse, convert, and render 1,000 emojis inside of a large markdown table in about 100ms on my laptop (which is many more emojis than will ever be in any normal issue). This also prevents any flickering and other weirdness from using javascript to render some things while using go for others.

Not included here are image fall back URLS. I don't really think they are necessary for anything new being written in 2020. However, managing the emoji ourselves would allow us to add these as a feature later on if it seems necessary.

Fixes: https://github.com/go-gitea/gitea/issues/9182
Fixes: https://github.com/go-gitea/gitea/issues/8974
Fixes: https://github.com/go-gitea/gitea/issues/8953
Fixes: https://github.com/go-gitea/gitea/issues/6628
Fixes: https://github.com/go-gitea/gitea/issues/5130

* add new shared function emojiHTML

* don't increase emoji size in issue title

* Update templates/repo/issue/view_content/add_reaction.tmpl

Co-Authored-By: 6543 <6543@obermui.de>

* Support for emoji rendering in various templates

* Render code and review comments as they should be

* Better way to handle mail subjects

* insert unicode from tribute selection

* Add template helper for plain text when needed

* Use existing replace function I forgot about

* Don't include emoji greater than Unicode Version 12

Only include emoji and aliases in JSON

* Update build/generate-emoji.go

* Tweak regex slightly to really match everything including random invisible characters. Run tests for every emoji we have

* final updates

* code review

* code review

* hard code gitea custom emoji to match previous behavior

* Update .eslintrc

Co-Authored-By: silverwind <me@silverwind.io>

* disable preempt

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>
This commit is contained in:
mrsdizzie 2020-04-28 14:05:39 -04:00 committed by GitHub
parent 922a239079
commit 4563eb873d
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
928 changed files with 2713 additions and 167 deletions

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@ -20,9 +20,9 @@ globals:
__webpack_public_path__: true __webpack_public_path__: true
CodeMirror: false CodeMirror: false
Dropzone: false Dropzone: false
emojify: false
SimpleMDE: false SimpleMDE: false
u2fApi: false u2fApi: false
Tribute: false
overrides: overrides:
- files: ["web_src/**/*.worker.js"] - files: ["web_src/**/*.worker.js"]

1
assets/emoji.json Normal file

File diff suppressed because one or more lines are too long

184
build/generate-emoji.go vendored Normal file
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@ -0,0 +1,184 @@
// Copyright 2020 The Gitea Authors. All rights reserved.
// Copyright 2015 Kenneth Shaw
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"encoding/json"
"flag"
"fmt"
"go/format"
"io/ioutil"
"log"
"net/http"
"regexp"
"sort"
"strconv"
"strings"
)
const (
gemojiURL = "https://raw.githubusercontent.com/github/gemoji/master/db/emoji.json"
maxUnicodeVersion = 12
)
var (
flagOut = flag.String("o", "modules/emoji/emoji_data.go", "out")
)
// Gemoji is a set of emoji data.
type Gemoji []Emoji
// Emoji represents a single emoji and associated data.
type Emoji struct {
Emoji string `json:"emoji"`
Description string `json:"description,omitempty"`
Aliases []string `json:"aliases"`
UnicodeVersion string `json:"unicode_version,omitempty"`
}
// Don't include some fields in JSON
func (e Emoji) MarshalJSON() ([]byte, error) {
type emoji Emoji
x := emoji(e)
x.UnicodeVersion = ""
x.Description = ""
return json.Marshal(x)
}
func main() {
var err error
flag.Parse()
// generate data
buf, err := generate()
if err != nil {
log.Fatal(err)
}
// write
err = ioutil.WriteFile(*flagOut, buf, 0644)
if err != nil {
log.Fatal(err)
}
}
var replacer = strings.NewReplacer(
"main.Gemoji", "Gemoji",
"main.Emoji", "\n",
"}}", "},\n}",
", Description:", ", ",
", Aliases:", ", ",
", UnicodeVersion:", ", ",
)
var emojiRE = regexp.MustCompile(`\{Emoji:"([^"]*)"`)
func generate() ([]byte, error) {
var err error
// load gemoji data
res, err := http.Get(gemojiURL)
if err != nil {
return nil, err
}
defer res.Body.Close()
// read all
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, err
}
// unmarshal
var data Gemoji
err = json.Unmarshal(body, &data)
if err != nil {
return nil, err
}
var re = regexp.MustCompile(`keycap|registered|copyright`)
tmp := data[:0]
// filter out emoji that require greater than max unicode version
for i := range data {
val, _ := strconv.ParseFloat(data[i].UnicodeVersion, 64)
if int(val) <= maxUnicodeVersion {
// remove these keycaps for now they really complicate matching since
// they include normal letters in them
if re.MatchString(data[i].Description) {
continue
}
tmp = append(tmp, data[i])
}
}
data = tmp
sort.Slice(data, func(i, j int) bool {
return data[i].Aliases[0] < data[j].Aliases[0]
})
aliasPairs := make([]string, 0)
aliasMap := make(map[string]int, len(data))
for i, e := range data {
if e.Emoji == "" || len(e.Aliases) == 0 {
continue
}
for _, a := range e.Aliases {
if a == "" {
continue
}
aliasMap[a] = i
aliasPairs = append(aliasPairs, ":"+a+":", e.Emoji)
}
}
// gitea customizations
i, ok := aliasMap["tada"]
if ok {
data[i].Aliases = append(data[i].Aliases, "hooray")
}
i, ok = aliasMap["laughing"]
if ok {
data[i].Aliases = append(data[i].Aliases, "laugh")
}
// add header
str := replacer.Replace(fmt.Sprintf(hdr, gemojiURL, data))
// change the format of the unicode string
str = emojiRE.ReplaceAllStringFunc(str, func(s string) string {
var err error
s, err = strconv.Unquote(s[len("{Emoji:"):])
if err != nil {
panic(err)
}
return "{" + strconv.QuoteToASCII(s)
})
// write a JSON file to use with tribute
file, _ := json.Marshal(data)
_ = ioutil.WriteFile("assets/emoji.json", file, 0644)
// format
return format.Source([]byte(str))
}
const hdr = `
// Copyright 2020 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 emoji
// Code generated by gen.go. DO NOT EDIT.
// Sourced from %s
//
var GemojiData = %#v
`

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@ -171,8 +171,9 @@ SHOW_USER_EMAIL = true
DEFAULT_THEME = gitea DEFAULT_THEME = gitea
; All available themes. Allow users select personalized themes regardless of the value of `DEFAULT_THEME`. ; All available themes. Allow users select personalized themes regardless of the value of `DEFAULT_THEME`.
THEMES = gitea,arc-green THEMES = gitea,arc-green
; All available reactions. Allow users react with different emoji's ;All available reactions users can choose on issues/prs and comments.
; For the whole list look at https://gitea.com/gitea/gitea.com/issues/8 ;Values can be emoji alias (:smile:) or a unicode emoji.
;For custom reactions, add a tightly cropped square image to public/emoji/img/reaction_name.png
REACTIONS = +1, -1, laugh, hooray, confused, heart, rocket, eyes REACTIONS = +1, -1, laugh, hooray, confused, heart, rocket, eyes
; Whether the full name of the users should be shown where possible. If the full name isn't set, the username will be used. ; Whether the full name of the users should be shown where possible. If the full name isn't set, the username will be used.
DEFAULT_SHOW_FULL_NAME = false DEFAULT_SHOW_FULL_NAME = false

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@ -128,7 +128,9 @@ Values containing `#` or `;` must be quoted using `` ` `` or `"""`.
- `DEFAULT_THEME`: **gitea**: \[gitea, arc-green\]: Set the default theme for the Gitea install. - `DEFAULT_THEME`: **gitea**: \[gitea, arc-green\]: Set the default theme for the Gitea install.
- `THEMES`: **gitea,arc-green**: All available themes. Allow users select personalized themes - `THEMES`: **gitea,arc-green**: All available themes. Allow users select personalized themes
regardless of the value of `DEFAULT_THEME`. regardless of the value of `DEFAULT_THEME`.
- `REACTIONS`: All available reactions. Allow users react with different emoji's. - `REACTIONS`: All available reactions users can choose on issues/prs and comments
Values can be emoji alias (:smile:) or a unicode emoji.
For custom reactions, add a tightly cropped square image to public/emoji/img/reaction_name.png
- `DEFAULT_SHOW_FULL_NAME`: **false**: Whether the full name of the users should be shown where possible. If the full name isn't set, the username will be used. - `DEFAULT_SHOW_FULL_NAME`: **false**: Whether the full name of the users should be shown where possible. If the full name isn't set, the username will be used.
- `SEARCH_REPO_DESCRIPTION`: **true**: Whether to search within description at repository search on explore page. - `SEARCH_REPO_DESCRIPTION`: **true**: Whether to search within description at repository search on explore page.
- `USE_SERVICE_WORKER`: **true**: Whether to enable a Service Worker to cache frontend assets. - `USE_SERVICE_WORKER`: **true**: Whether to enable a Service Worker to cache frontend assets.

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@ -274,7 +274,6 @@ Windows, on architectures like amd64, i386, ARM, PowerPC, and others.
* [DropzoneJS](http://www.dropzonejs.com/) * [DropzoneJS](http://www.dropzonejs.com/)
* [Highlight](https://highlightjs.org/) * [Highlight](https://highlightjs.org/)
* [Clipboard](https://zenorocha.github.io/clipboard.js/) * [Clipboard](https://zenorocha.github.io/clipboard.js/)
* [Emojify](https://github.com/Ranks/emojify.js)
* [CodeMirror](https://codemirror.net/) * [CodeMirror](https://codemirror.net/)
* [jQuery Date Time Picker](https://github.com/xdan/datetimepicker) * [jQuery Date Time Picker](https://github.com/xdan/datetimepicker)
* [jQuery MiniColors](https://github.com/claviska/jquery-minicolors) * [jQuery MiniColors](https://github.com/claviska/jquery-minicolors)

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@ -263,7 +263,6 @@ Le but de ce projet est de fournir de la manière la plus simple, la plus rapide
* [DropzoneJS](http://www.dropzonejs.com/) * [DropzoneJS](http://www.dropzonejs.com/)
* [Highlight](https://highlightjs.org/) * [Highlight](https://highlightjs.org/)
* [Clipboard](https://zenorocha.github.io/clipboard.js/) * [Clipboard](https://zenorocha.github.io/clipboard.js/)
* [Emojify](https://github.com/Ranks/emojify.js)
* [CodeMirror](https://codemirror.net/) * [CodeMirror](https://codemirror.net/)
* [jQuery Date Time Picker](https://github.com/xdan/datetimepicker) * [jQuery Date Time Picker](https://github.com/xdan/datetimepicker)
* [jQuery MiniColors](https://github.com/claviska/jquery-minicolors) * [jQuery MiniColors](https://github.com/claviska/jquery-minicolors)

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@ -56,7 +56,6 @@ Gitea的首要目标是创建一个极易安装运行非常快速安装和
* [DropzoneJS](http://www.dropzonejs.com/) * [DropzoneJS](http://www.dropzonejs.com/)
* [Highlight](https://highlightjs.org/) * [Highlight](https://highlightjs.org/)
* [Clipboard](https://zenorocha.github.io/clipboard.js/) * [Clipboard](https://zenorocha.github.io/clipboard.js/)
* [Emojify](https://github.com/Ranks/emojify.js)
* [CodeMirror](https://codemirror.net/) * [CodeMirror](https://codemirror.net/)
* [jQuery Date Time Picker](https://github.com/xdan/datetimepicker) * [jQuery Date Time Picker](https://github.com/xdan/datetimepicker)
* [jQuery MiniColors](https://github.com/claviska/jquery-minicolors) * [jQuery MiniColors](https://github.com/claviska/jquery-minicolors)

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@ -56,7 +56,6 @@ Gitea 的首要目標是建立一個容易安裝,運行快速,安装和使
* [DropzoneJS](http://www.dropzonejs.com/) * [DropzoneJS](http://www.dropzonejs.com/)
* [Highlight](https://highlightjs.org/) * [Highlight](https://highlightjs.org/)
* [Clipboard](https://zenorocha.github.io/clipboard.js/) * [Clipboard](https://zenorocha.github.io/clipboard.js/)
* [Emojify](https://github.com/Ranks/emojify.js)
* [CodeMirror](https://codemirror.net/) * [CodeMirror](https://codemirror.net/)
* [jQuery Date Time Picker](https://github.com/xdan/datetimepicker) * [jQuery Date Time Picker](https://github.com/xdan/datetimepicker)
* [jQuery MiniColors](https://github.com/claviska/jquery-minicolors) * [jQuery MiniColors](https://github.com/claviska/jquery-minicolors)

119
modules/emoji/emoji.go Normal file
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@ -0,0 +1,119 @@
// Copyright 2020 The Gitea Authors. All rights reserved.
// Copyright 2015 Kenneth Shaw
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package emoji
import (
"strings"
"sync"
)
// Gemoji is a set of emoji data.
type Gemoji []Emoji
// Emoji represents a single emoji and associated data.
type Emoji struct {
Emoji string
Description string
Aliases []string
UnicodeVersion string
}
var (
// codeMap provides a map of the emoji unicode code to its emoji data.
codeMap map[string]int
// aliasMap provides a map of the alias to its emoji data.
aliasMap map[string]int
// codeReplacer is the string replacer for emoji codes.
codeReplacer *strings.Replacer
// aliasReplacer is the string replacer for emoji aliases.
aliasReplacer *strings.Replacer
once sync.Once
)
func loadMap() {
once.Do(func() {
// initialize
codeMap = make(map[string]int, len(GemojiData))
aliasMap = make(map[string]int, len(GemojiData))
// process emoji codes and aliases
codePairs := make([]string, 0)
aliasPairs := make([]string, 0)
for i, e := range GemojiData {
if e.Emoji == "" || len(e.Aliases) == 0 {
continue
}
// setup codes
codeMap[e.Emoji] = i
codePairs = append(codePairs, e.Emoji, ":"+e.Aliases[0]+":")
// setup aliases
for _, a := range e.Aliases {
if a == "" {
continue
}
aliasMap[a] = i
aliasPairs = append(aliasPairs, ":"+a+":", e.Emoji)
}
}
// create replacers
codeReplacer = strings.NewReplacer(codePairs...)
aliasReplacer = strings.NewReplacer(aliasPairs...)
})
}
// FromCode retrieves the emoji data based on the provided unicode code (ie,
// "\u2618" will return the Gemoji data for "shamrock").
func FromCode(code string) *Emoji {
loadMap()
i, ok := codeMap[code]
if !ok {
return nil
}
return &GemojiData[i]
}
// FromAlias retrieves the emoji data based on the provided alias in the form
// "alias" or ":alias:" (ie, "shamrock" or ":shamrock:" will return the Gemoji
// data for "shamrock").
func FromAlias(alias string) *Emoji {
loadMap()
if strings.HasPrefix(alias, ":") && strings.HasSuffix(alias, ":") {
alias = alias[1 : len(alias)-1]
}
i, ok := aliasMap[alias]
if !ok {
return nil
}
return &GemojiData[i]
}
// ReplaceCodes replaces all emoji codes with the first corresponding emoji
// alias (in the form of ":alias:") (ie, "\u2618" will be converted to
// ":shamrock:").
func ReplaceCodes(s string) string {
loadMap()
return codeReplacer.Replace(s)
}
// ReplaceAliases replaces all aliases of the form ":alias:" with its
// corresponding unicode value.
func ReplaceAliases(s string) string {
loadMap()
return aliasReplacer.Replace(s)
}

1734
modules/emoji/emoji_data.go Normal file

File diff suppressed because it is too large Load Diff

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@ -0,0 +1,67 @@
// Copyright 2020 The Gitea Authors. All rights reserved.
// Copyright 2015 Kenneth Shaw
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package emoji
import (
"reflect"
"testing"
)
func TestDumpInfo(t *testing.T) {
t.Logf("codes: %d", len(codeMap))
t.Logf("aliases: %d", len(aliasMap))
}
func TestLookup(t *testing.T) {
a := FromCode("\U0001f37a")
b := FromCode("🍺")
c := FromAlias(":beer:")
d := FromAlias("beer")
if !reflect.DeepEqual(a, b) {
t.Errorf("a and b should equal")
}
if !reflect.DeepEqual(b, c) {
t.Errorf("b and c should equal")
}
if !reflect.DeepEqual(c, d) {
t.Errorf("c and d should equal")
}
if !reflect.DeepEqual(a, d) {
t.Errorf("a and d should equal")
}
m := FromCode("\U0001f44d")
n := FromAlias(":thumbsup:")
o := FromAlias("+1")
if !reflect.DeepEqual(m, n) {
t.Errorf("m and n should equal")
}
if !reflect.DeepEqual(n, o) {
t.Errorf("n and o should equal")
}
if !reflect.DeepEqual(m, o) {
t.Errorf("m and o should equal")
}
}
func TestReplacers(t *testing.T) {
tests := []struct {
f func(string) string
v, exp string
}{
{ReplaceCodes, ":thumbsup: +1 for \U0001f37a! 🍺 \U0001f44d", ":thumbsup: +1 for :beer:! :beer: :+1:"},
{ReplaceAliases, ":thumbsup: +1 :+1: :beer:", "\U0001f44d +1 \U0001f44d \U0001f37a"},
}
for i, x := range tests {
s := x.f(x.v)
if s != x.exp {
t.Errorf("test %d `%s` expected `%s`, got: `%s`", i, x.v, x.exp, s)
}
}
}

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@ -98,7 +98,6 @@ func (c *Command) RunInDirTimeoutEnvFullPipeline(env []string, timeout time.Dura
// RunInDirTimeoutEnvFullPipelineFunc executes the command in given directory with given timeout, // RunInDirTimeoutEnvFullPipelineFunc executes the command in given directory with given timeout,
// it pipes stdout and stderr to given io.Writer and passes in an io.Reader as stdin. Between cmd.Start and cmd.Wait the passed in function is run. // it pipes stdout and stderr to given io.Writer and passes in an io.Reader as stdin. Between cmd.Start and cmd.Wait the passed in function is run.
func (c *Command) RunInDirTimeoutEnvFullPipelineFunc(env []string, timeout time.Duration, dir string, stdout, stderr io.Writer, stdin io.Reader, fn func(context.Context, context.CancelFunc) error) error { func (c *Command) RunInDirTimeoutEnvFullPipelineFunc(env []string, timeout time.Duration, dir string, stdout, stderr io.Writer, stdin io.Reader, fn func(context.Context, context.CancelFunc) error) error {
if timeout == -1 { if timeout == -1 {
timeout = DefaultCommandExecutionTimeout timeout = DefaultCommandExecutionTimeout
} }

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@ -6,6 +6,7 @@ package markup
import ( import (
"bytes" "bytes"
"fmt"
"net/url" "net/url"
"path" "path"
"path/filepath" "path/filepath"
@ -13,6 +14,7 @@ import (
"strings" "strings"
"code.gitea.io/gitea/modules/base" "code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/emoji"
"code.gitea.io/gitea/modules/git" "code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log" "code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/markup/common" "code.gitea.io/gitea/modules/markup/common"
@ -60,6 +62,13 @@ var (
// blackfriday extensions create IDs like fn:user-content-footnote // blackfriday extensions create IDs like fn:user-content-footnote
blackfridayExtRegex = regexp.MustCompile(`[^:]*:user-content-`) blackfridayExtRegex = regexp.MustCompile(`[^:]*:user-content-`)
// EmojiShortCodeRegex find emoji by alias like :smile:
EmojiShortCodeRegex = regexp.MustCompile(`\:[\w\+\-]+\:{1}`)
// find emoji literal: search all emoji hex range as many times as they appear as
// some emojis (skin color etc..) are just two or more chained together
emojiRegex = regexp.MustCompile(`[\x{1F000}-\x{1FFFF}|\x{2000}-\x{32ff}|\x{fe4e5}-\x{fe4ee}|\x{200D}|\x{FE0F}|\x{e0000}-\x{e007f}]+`)
) )
// CSS class for action keywords (e.g. "closes: #1") // CSS class for action keywords (e.g. "closes: #1")
@ -154,6 +163,8 @@ var defaultProcessors = []processor{
issueIndexPatternProcessor, issueIndexPatternProcessor,
sha1CurrentPatternProcessor, sha1CurrentPatternProcessor,
emailAddressProcessor, emailAddressProcessor,
emojiProcessor,
emojiShortCodeProcessor,
} }
type postProcessCtx struct { type postProcessCtx struct {
@ -194,6 +205,8 @@ var commitMessageProcessors = []processor{
issueIndexPatternProcessor, issueIndexPatternProcessor,
sha1CurrentPatternProcessor, sha1CurrentPatternProcessor,
emailAddressProcessor, emailAddressProcessor,
emojiProcessor,
emojiShortCodeProcessor,
} }
// RenderCommitMessage will use the same logic as PostProcess, but will disable // RenderCommitMessage will use the same logic as PostProcess, but will disable
@ -226,6 +239,13 @@ var commitMessageSubjectProcessors = []processor{
mentionProcessor, mentionProcessor,
issueIndexPatternProcessor, issueIndexPatternProcessor,
sha1CurrentPatternProcessor, sha1CurrentPatternProcessor,
emojiShortCodeProcessor,
emojiProcessor,
}
var emojiProcessors = []processor{
emojiShortCodeProcessor,
emojiProcessor,
} }
// RenderCommitMessageSubject will use the same logic as PostProcess and // RenderCommitMessageSubject will use the same logic as PostProcess and
@ -269,6 +289,17 @@ func RenderDescriptionHTML(
return ctx.postProcess(rawHTML) return ctx.postProcess(rawHTML)
} }
// RenderEmoji for when we want to just process emoji and shortcodes
// in various places it isn't already run through the normal markdown procesor
func RenderEmoji(
rawHTML []byte,
) ([]byte, error) {
ctx := &postProcessCtx{
procs: emojiProcessors,
}
return ctx.postProcess(rawHTML)
}
var byteBodyTag = []byte("<body>") var byteBodyTag = []byte("<body>")
var byteBodyTagClosing = []byte("</body>") var byteBodyTagClosing = []byte("</body>")
@ -319,7 +350,12 @@ func (ctx *postProcessCtx) visitNode(node *html.Node, visitText bool) {
if attr.Key == "id" && !(strings.HasPrefix(attr.Val, "user-content-") || blackfridayExtRegex.MatchString(attr.Val)) { if attr.Key == "id" && !(strings.HasPrefix(attr.Val, "user-content-") || blackfridayExtRegex.MatchString(attr.Val)) {
node.Attr[idx].Val = "user-content-" + attr.Val node.Attr[idx].Val = "user-content-" + attr.Val
} }
if attr.Key == "class" && attr.Val == "emoji" {
visitText = false
}
} }
// We ignore code, pre and already generated links. // We ignore code, pre and already generated links.
switch node.Type { switch node.Type {
case html.TextNode: case html.TextNode:
@ -406,6 +442,54 @@ func createKeyword(content string) *html.Node {
return span return span
} }
func createEmoji(content, class, name string) *html.Node {
span := &html.Node{
Type: html.ElementNode,
Data: atom.Span.String(),
Attr: []html.Attribute{},
}
if class != "" {
span.Attr = append(span.Attr, html.Attribute{Key: "class", Val: class})
}
if name != "" {
span.Attr = append(span.Attr, html.Attribute{Key: "aria-label", Val: name})
}
text := &html.Node{
Type: html.TextNode,
Data: content,
}
span.AppendChild(text)
return span
}
func createCustomEmoji(alias, class string) *html.Node {
span := &html.Node{
Type: html.ElementNode,
Data: atom.Span.String(),
Attr: []html.Attribute{},
}
if class != "" {
span.Attr = append(span.Attr, html.Attribute{Key: "class", Val: class})
span.Attr = append(span.Attr, html.Attribute{Key: "aria-label", Val: alias})
}
img := &html.Node{
Type: html.ElementNode,
DataAtom: atom.Img,
Data: "img",
Attr: []html.Attribute{},
}
if class != "" {
img.Attr = append(img.Attr, html.Attribute{Key: "src", Val: fmt.Sprintf(`%s/img/emoji/%s.png`, setting.StaticURLPrefix, alias)})
}
span.AppendChild(img)
return span
}
func createLink(href, content, class string) *html.Node { func createLink(href, content, class string) *html.Node {
a := &html.Node{ a := &html.Node{
Type: html.ElementNode, Type: html.ElementNode,
@ -810,6 +894,45 @@ func fullSha1PatternProcessor(ctx *postProcessCtx, node *html.Node) {
replaceContent(node, start, end, createCodeLink(urlFull, text, "commit")) replaceContent(node, start, end, createCodeLink(urlFull, text, "commit"))
} }
// emojiShortCodeProcessor for rendering text like :smile: into emoji
func emojiShortCodeProcessor(ctx *postProcessCtx, node *html.Node) {
m := EmojiShortCodeRegex.FindStringSubmatchIndex(node.Data)
if m == nil {
return
}
alias := node.Data[m[0]:m[1]]
alias = strings.Replace(alias, ":", "", -1)
converted := emoji.FromAlias(alias)
if converted == nil {
// check if this is a custom reaction
s := strings.Join(setting.UI.Reactions, " ") + "gitea"
if strings.Contains(s, alias) {
replaceContent(node, m[0], m[1], createCustomEmoji(alias, "emoji"))
return
}
return
}
replaceContent(node, m[0], m[1], createEmoji(converted.Emoji, "emoji", converted.Description))
}
// emoji processor to match emoji and add emoji class
func emojiProcessor(ctx *postProcessCtx, node *html.Node) {
m := emojiRegex.FindStringSubmatchIndex(node.Data)
if m == nil {
return
}
codepoint := node.Data[m[0]:m[1]]
val := emoji.FromCode(codepoint)
if val != nil {
replaceContent(node, m[0], m[1], createEmoji(codepoint, "emoji", val.Description))
}
}
// sha1CurrentPatternProcessor renders SHA1 strings to corresponding links that // sha1CurrentPatternProcessor renders SHA1 strings to corresponding links that
// are assumed to be in the same repository. // are assumed to be in the same repository.
func sha1CurrentPatternProcessor(ctx *postProcessCtx, node *html.Node) { func sha1CurrentPatternProcessor(ctx *postProcessCtx, node *html.Node) {

View File

@ -8,6 +8,7 @@ import (
"strings" "strings"
"testing" "testing"
"code.gitea.io/gitea/modules/emoji"
. "code.gitea.io/gitea/modules/markup" . "code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/markup/markdown" "code.gitea.io/gitea/modules/markup/markdown"
"code.gitea.io/gitea/modules/setting" "code.gitea.io/gitea/modules/setting"
@ -228,6 +229,50 @@ func TestRender_email(t *testing.T) {
`<p>email@domain..com</p>`) `<p>email@domain..com</p>`)
} }
func TestRender_emoji(t *testing.T) {
setting.AppURL = AppURL
setting.AppSubURL = AppSubURL
setting.StaticURLPrefix = AppURL
test := func(input, expected string) {
expected = strings.Replace(expected, "&", "&amp;", -1)
buffer := RenderString("a.md", input, setting.AppSubURL, nil)
assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
}
// Make sure we can successfully match every emoji in our dataset with regex
for i := range emoji.GemojiData {
test(
emoji.GemojiData[i].Emoji,
`<p><span class="emoji" aria-label="`+emoji.GemojiData[i].Description+`">`+emoji.GemojiData[i].Emoji+`</span></p>`)
}
for i := range emoji.GemojiData {
test(
":"+emoji.GemojiData[i].Aliases[0]+":",
`<p><span class="emoji" aria-label="`+emoji.GemojiData[i].Description+`">`+emoji.GemojiData[i].Emoji+`</span></p>`)
}
//Text that should be turned into or recognized as emoji
test(
":gitea:",
`<p><span class="emoji" aria-label="gitea"><img src="`+setting.StaticURLPrefix+`/img/emoji/gitea.png"/></span></p>`)
test(
"Some text with 😄 in the middle",
`<p>Some text with <span class="emoji" aria-label="grinning face with smiling eyes">😄</span> in the middle</p>`)
test(
"Some text with :smile: in the middle",
`<p>Some text with <span class="emoji" aria-label="grinning face with smiling eyes">😄</span> in the middle</p>`)
// should match nothing
test(
"2001:0db8:85a3:0000:0000:8a2e:0370:7334",
`<p>2001:0db8:85a3:0000:0000:8a2e:0370:7334</p>`)
test(
":not exist:",
`<p>:not exist:</p>`)
}
func TestRender_ShortLinks(t *testing.T) { func TestRender_ShortLinks(t *testing.T) {
setting.AppURL = AppURL setting.AppURL = AppURL
setting.AppSubURL = AppSubURL setting.AppSubURL = AppSubURL

View File

@ -63,6 +63,10 @@ func ReplaceSanitizer() {
// Allow unlabelled labels // Allow unlabelled labels
sanitizer.policy.AllowNoAttrs().OnElements("label") sanitizer.policy.AllowNoAttrs().OnElements("label")
// Allow classes for emojis
sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`emoji`)).OnElements("span")
sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`emoji`)).OnElements("img")
// Allow generally safe attributes // Allow generally safe attributes
generalSafeAttrs := []string{"abbr", "accept", "accept-charset", generalSafeAttrs := []string{"abbr", "accept", "accept-charset",
"accesskey", "action", "align", "alt", "accesskey", "action", "align", "alt",

View File

@ -25,6 +25,7 @@ import (
"code.gitea.io/gitea/models" "code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/base" "code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/emoji"
"code.gitea.io/gitea/modules/log" "code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/markup" "code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/repository" "code.gitea.io/gitea/modules/repository"
@ -139,6 +140,9 @@ func NewFuncMap() []template.FuncMap {
"RenderCommitMessageLink": RenderCommitMessageLink, "RenderCommitMessageLink": RenderCommitMessageLink,
"RenderCommitMessageLinkSubject": RenderCommitMessageLinkSubject, "RenderCommitMessageLinkSubject": RenderCommitMessageLinkSubject,
"RenderCommitBody": RenderCommitBody, "RenderCommitBody": RenderCommitBody,
"RenderEmoji": RenderEmoji,
"RenderEmojiPlain": emoji.ReplaceAliases,
"ReactionToEmoji": ReactionToEmoji,
"RenderNote": RenderNote, "RenderNote": RenderNote,
"IsMultilineCommitMessage": IsMultilineCommitMessage, "IsMultilineCommitMessage": IsMultilineCommitMessage,
"ThemeColorMetaTag": func() string { "ThemeColorMetaTag": func() string {
@ -512,6 +516,29 @@ func RenderCommitBody(msg, urlPrefix string, metas map[string]string) template.H
return template.HTML(renderedMessage) return template.HTML(renderedMessage)
} }
// RenderEmoji renders html text with emoji post processors
func RenderEmoji(text string) template.HTML {
renderedText, err := markup.RenderEmoji([]byte(template.HTMLEscapeString(text)))
if err != nil {
log.Error("RenderEmoji: %v", err)
return template.HTML("")
}
return template.HTML(renderedText)
}
//ReactionToEmoji renders emoji for use in reactions
func ReactionToEmoji(reaction string) template.HTML {
val := emoji.FromCode(reaction)
if val != nil {
return template.HTML(val.Emoji)
}
val = emoji.FromAlias(reaction)
if val != nil {
return template.HTML(val.Emoji)
}
return template.HTML(fmt.Sprintf(`<img src=%s/img/emoji/%s.png></img>`, setting.StaticURLPrefix, reaction))
}
// RenderNote renders the contents of a git-notes file as a commit message. // RenderNote renders the contents of a git-notes file as a commit message.
func RenderNote(msg, urlPrefix string, metas map[string]string) template.HTML { func RenderNote(msg, urlPrefix string, metas map[string]string) template.HTML {
cleanMsg := template.HTMLEscapeString(msg) cleanMsg := template.HTMLEscapeString(msg)

BIN
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@ -0,0 +1,201 @@
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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APPENDIX: How to apply the Apache License to your work.
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@ -50,11 +50,6 @@
<td><a href="https://github.com/vuejs/vue/blob/dev/LICENSE">Expat</a></td> <td><a href="https://github.com/vuejs/vue/blob/dev/LICENSE">Expat</a></td>
<td><a href="https://github.com/vuejs/vue/archive/v2.6.11.tar.gz">vue.js-v2.6.11.tar.gz</a></td> <td><a href="https://github.com/vuejs/vue/archive/v2.6.11.tar.gz">vue.js-v2.6.11.tar.gz</a></td>
</tr> </tr>
<tr>
<td><a href="./plugins/emojify/emojify.custom.js">emojify.custom.js</a></td>
<td><a href="http://www.freebsd.org/copyright/freebsd-license.html">Expat</a></td>
<td><a href="https://github.com/Ranks/emojify.js/archive/1.1.0.tar.gz">emojify-1.1.0.tar.gz</a></td>
</tr>
<tr> <tr>
<td><a href="../js/dropzone.js">dropzone.js</a></td> <td><a href="../js/dropzone.js">dropzone.js</a></td>
<td><a href="https://github.com/enyo/dropzone/blob/master/LICENSE">MIT</a></td> <td><a href="https://github.com/enyo/dropzone/blob/master/LICENSE">MIT</a></td>

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@ -1,8 +0,0 @@
THE MIT LICENSE (MIT)
Copyright © 2014 Hassan Khan, http://hassankhan.me <contact@hassankhan.me>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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