gitea/modules/templates/helper.go
silverwind ee047312a1
Fix emoji replacements, make emoji images consistent (#12567)
- Fix emoji not being replaced in issue title change text
- Make the image attributes consistent, add alt, remove align

Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
2020-08-23 21:44:53 -04:00

796 lines
22 KiB
Go

// Copyright 2018 The Gitea Authors. All rights reserved.
// 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 templates
import (
"bytes"
"container/list"
"encoding/json"
"errors"
"fmt"
"html"
"html/template"
"mime"
"net/url"
"path/filepath"
"regexp"
"runtime"
"strings"
texttmpl "text/template"
"time"
"unicode"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/emoji"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/svg"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/services/gitdiff"
mirror_service "code.gitea.io/gitea/services/mirror"
"github.com/editorconfig/editorconfig-core-go/v2"
)
// Used from static.go && dynamic.go
var mailSubjectSplit = regexp.MustCompile(`(?m)^-{3,}[\s]*$`)
// NewFuncMap returns functions for injecting to templates
func NewFuncMap() []template.FuncMap {
return []template.FuncMap{map[string]interface{}{
"GoVer": func() string {
return strings.Title(runtime.Version())
},
"UseHTTPS": func() bool {
return strings.HasPrefix(setting.AppURL, "https")
},
"AppName": func() string {
return setting.AppName
},
"AppSubUrl": func() string {
return setting.AppSubURL
},
"StaticUrlPrefix": func() string {
return setting.StaticURLPrefix
},
"AppUrl": func() string {
return setting.AppURL
},
"AppVer": func() string {
return setting.AppVer
},
"AppBuiltWith": func() string {
return setting.AppBuiltWith
},
"AppDomain": func() string {
return setting.Domain
},
"DisableGravatar": func() bool {
return setting.DisableGravatar
},
"DefaultShowFullName": func() bool {
return setting.UI.DefaultShowFullName
},
"ShowFooterTemplateLoadTime": func() bool {
return setting.ShowFooterTemplateLoadTime
},
"LoadTimes": func(startTime time.Time) string {
return fmt.Sprint(time.Since(startTime).Nanoseconds()/1e6) + "ms"
},
"AllowedReactions": func() []string {
return setting.UI.Reactions
},
"AvatarLink": models.AvatarLink,
"Safe": Safe,
"SafeJS": SafeJS,
"Str2html": Str2html,
"TimeSince": timeutil.TimeSince,
"TimeSinceUnix": timeutil.TimeSinceUnix,
"RawTimeSince": timeutil.RawTimeSince,
"FileSize": base.FileSize,
"PrettyNumber": base.PrettyNumber,
"Subtract": base.Subtract,
"EntryIcon": base.EntryIcon,
"MigrationIcon": MigrationIcon,
"Add": func(a ...int) int {
sum := 0
for _, val := range a {
sum += val
}
return sum
},
"Mul": func(a ...int) int {
sum := 1
for _, val := range a {
sum *= val
}
return sum
},
"ActionIcon": ActionIcon,
"DateFmtLong": func(t time.Time) string {
return t.Format(time.RFC1123Z)
},
"DateFmtShort": func(t time.Time) string {
return t.Format("Jan 02, 2006")
},
"SizeFmt": base.FileSize,
"List": List,
"SubStr": func(str string, start, length int) string {
if len(str) == 0 {
return ""
}
end := start + length
if length == -1 {
end = len(str)
}
if len(str) < end {
return str
}
return str[start:end]
},
"EllipsisString": base.EllipsisString,
"DiffTypeToStr": DiffTypeToStr,
"DiffLineTypeToStr": DiffLineTypeToStr,
"Sha1": Sha1,
"ShortSha": base.ShortSha,
"MD5": base.EncodeMD5,
"ActionContent2Commits": ActionContent2Commits,
"PathEscape": url.PathEscape,
"EscapePound": func(str string) string {
return strings.NewReplacer("%", "%25", "#", "%23", " ", "%20", "?", "%3F").Replace(str)
},
"PathEscapeSegments": util.PathEscapeSegments,
"URLJoin": util.URLJoin,
"RenderCommitMessage": RenderCommitMessage,
"RenderCommitMessageLink": RenderCommitMessageLink,
"RenderCommitMessageLinkSubject": RenderCommitMessageLinkSubject,
"RenderCommitBody": RenderCommitBody,
"RenderEmoji": RenderEmoji,
"RenderEmojiPlain": emoji.ReplaceAliases,
"ReactionToEmoji": ReactionToEmoji,
"RenderNote": RenderNote,
"IsMultilineCommitMessage": IsMultilineCommitMessage,
"ThemeColorMetaTag": func() string {
return setting.UI.ThemeColorMetaTag
},
"MetaAuthor": func() string {
return setting.UI.Meta.Author
},
"MetaDescription": func() string {
return setting.UI.Meta.Description
},
"MetaKeywords": func() string {
return setting.UI.Meta.Keywords
},
"UseServiceWorker": func() bool {
return setting.UI.UseServiceWorker
},
"FilenameIsImage": func(filename string) bool {
mimeType := mime.TypeByExtension(filepath.Ext(filename))
return strings.HasPrefix(mimeType, "image/")
},
"TabSizeClass": func(ec interface{}, filename string) string {
var (
value *editorconfig.Editorconfig
ok bool
)
if ec != nil {
if value, ok = ec.(*editorconfig.Editorconfig); !ok || value == nil {
return "tab-size-8"
}
def, err := value.GetDefinitionForFilename(filename)
if err != nil {
log.Error("tab size class: getting definition for filename: %v", err)
return "tab-size-8"
}
if def.TabWidth > 0 {
return fmt.Sprintf("tab-size-%d", def.TabWidth)
}
}
return "tab-size-8"
},
"SubJumpablePath": func(str string) []string {
var path []string
index := strings.LastIndex(str, "/")
if index != -1 && index != len(str) {
path = append(path, str[0:index+1], str[index+1:])
} else {
path = append(path, str)
}
return path
},
"Json": func(in interface{}) string {
out, err := json.Marshal(in)
if err != nil {
return ""
}
return string(out)
},
"JsonPrettyPrint": func(in string) string {
var out bytes.Buffer
err := json.Indent(&out, []byte(in), "", " ")
if err != nil {
return ""
}
return out.String()
},
"DisableGitHooks": func() bool {
return setting.DisableGitHooks
},
"DisableImportLocal": func() bool {
return !setting.ImportLocalPaths
},
"TrN": TrN,
"Dict": func(values ...interface{}) (map[string]interface{}, error) {
if len(values)%2 != 0 {
return nil, errors.New("invalid dict call")
}
dict := make(map[string]interface{}, len(values)/2)
for i := 0; i < len(values); i += 2 {
key, ok := values[i].(string)
if !ok {
return nil, errors.New("dict keys must be strings")
}
dict[key] = values[i+1]
}
return dict, nil
},
"Printf": fmt.Sprintf,
"Escape": Escape,
"Sec2Time": models.SecToTime,
"ParseDeadline": func(deadline string) []string {
return strings.Split(deadline, "|")
},
"DefaultTheme": func() string {
return setting.UI.DefaultTheme
},
"dict": func(values ...interface{}) (map[string]interface{}, error) {
if len(values) == 0 {
return nil, errors.New("invalid dict call")
}
dict := make(map[string]interface{})
for i := 0; i < len(values); i++ {
switch key := values[i].(type) {
case string:
i++
if i == len(values) {
return nil, errors.New("specify the key for non array values")
}
dict[key] = values[i]
case map[string]interface{}:
m := values[i].(map[string]interface{})
for i, v := range m {
dict[i] = v
}
default:
return nil, errors.New("dict values must be maps")
}
}
return dict, nil
},
"percentage": func(n int, values ...int) float32 {
var sum = 0
for i := 0; i < len(values); i++ {
sum += values[i]
}
return float32(n) * 100 / float32(sum)
},
"CommentMustAsDiff": gitdiff.CommentMustAsDiff,
"MirrorAddress": mirror_service.Address,
"MirrorFullAddress": mirror_service.AddressNoCredentials,
"MirrorUserName": mirror_service.Username,
"MirrorPassword": mirror_service.Password,
"CommitType": func(commit interface{}) string {
switch commit.(type) {
case models.SignCommitWithStatuses:
return "SignCommitWithStatuses"
case models.SignCommit:
return "SignCommit"
case models.UserCommit:
return "UserCommit"
default:
return ""
}
},
"NotificationSettings": func() map[string]interface{} {
return map[string]interface{}{
"MinTimeout": int(setting.UI.Notification.MinTimeout / time.Millisecond),
"TimeoutStep": int(setting.UI.Notification.TimeoutStep / time.Millisecond),
"MaxTimeout": int(setting.UI.Notification.MaxTimeout / time.Millisecond),
"EventSourceUpdateTime": int(setting.UI.Notification.EventSourceUpdateTime / time.Millisecond),
}
},
"contain": func(s []int64, id int64) bool {
for i := 0; i < len(s); i++ {
if s[i] == id {
return true
}
}
return false
},
"svg": SVG,
"SortArrow": func(normSort, revSort, urlSort string, isDefault bool) template.HTML {
// if needed
if len(normSort) == 0 || len(urlSort) == 0 {
return ""
}
if len(urlSort) == 0 && isDefault {
// if sort is sorted as default add arrow tho this table header
if isDefault {
return SVG("octicon-triangle-down", 16)
}
} else {
// if sort arg is in url test if it correlates with column header sort arguments
if urlSort == normSort {
// the table is sorted with this header normal
return SVG("octicon-triangle-down", 16)
} else if urlSort == revSort {
// the table is sorted with this header reverse
return SVG("octicon-triangle-up", 16)
}
}
// the table is NOT sorted with this header
return ""
},
}}
}
// NewTextFuncMap returns functions for injecting to text templates
// It's a subset of those used for HTML and other templates
func NewTextFuncMap() []texttmpl.FuncMap {
return []texttmpl.FuncMap{map[string]interface{}{
"GoVer": func() string {
return strings.Title(runtime.Version())
},
"AppName": func() string {
return setting.AppName
},
"AppSubUrl": func() string {
return setting.AppSubURL
},
"AppUrl": func() string {
return setting.AppURL
},
"AppVer": func() string {
return setting.AppVer
},
"AppBuiltWith": func() string {
return setting.AppBuiltWith
},
"AppDomain": func() string {
return setting.Domain
},
"TimeSince": timeutil.TimeSince,
"TimeSinceUnix": timeutil.TimeSinceUnix,
"RawTimeSince": timeutil.RawTimeSince,
"DateFmtLong": func(t time.Time) string {
return t.Format(time.RFC1123Z)
},
"DateFmtShort": func(t time.Time) string {
return t.Format("Jan 02, 2006")
},
"List": List,
"SubStr": func(str string, start, length int) string {
if len(str) == 0 {
return ""
}
end := start + length
if length == -1 {
end = len(str)
}
if len(str) < end {
return str
}
return str[start:end]
},
"EllipsisString": base.EllipsisString,
"URLJoin": util.URLJoin,
"Dict": func(values ...interface{}) (map[string]interface{}, error) {
if len(values)%2 != 0 {
return nil, errors.New("invalid dict call")
}
dict := make(map[string]interface{}, len(values)/2)
for i := 0; i < len(values); i += 2 {
key, ok := values[i].(string)
if !ok {
return nil, errors.New("dict keys must be strings")
}
dict[key] = values[i+1]
}
return dict, nil
},
"Printf": fmt.Sprintf,
"Escape": Escape,
"Sec2Time": models.SecToTime,
"ParseDeadline": func(deadline string) []string {
return strings.Split(deadline, "|")
},
"dict": func(values ...interface{}) (map[string]interface{}, error) {
if len(values) == 0 {
return nil, errors.New("invalid dict call")
}
dict := make(map[string]interface{})
for i := 0; i < len(values); i++ {
switch key := values[i].(type) {
case string:
i++
if i == len(values) {
return nil, errors.New("specify the key for non array values")
}
dict[key] = values[i]
case map[string]interface{}:
m := values[i].(map[string]interface{})
for i, v := range m {
dict[i] = v
}
default:
return nil, errors.New("dict values must be maps")
}
}
return dict, nil
},
"percentage": func(n int, values ...int) float32 {
var sum = 0
for i := 0; i < len(values); i++ {
sum += values[i]
}
return float32(n) * 100 / float32(sum)
},
"Add": func(a ...int) int {
sum := 0
for _, val := range a {
sum += val
}
return sum
},
"Mul": func(a ...int) int {
sum := 1
for _, val := range a {
sum *= val
}
return sum
},
}}
}
var widthRe = regexp.MustCompile(`width="[0-9]+?"`)
var heightRe = regexp.MustCompile(`height="[0-9]+?"`)
// SVG render icons
func SVG(icon string, size int) template.HTML {
if svgStr, ok := svg.SVGs[icon]; ok {
if size != 16 {
svgStr = widthRe.ReplaceAllString(svgStr, fmt.Sprintf(`width="%d"`, size))
svgStr = heightRe.ReplaceAllString(svgStr, fmt.Sprintf(`height="%d"`, size))
}
return template.HTML(svgStr)
}
return template.HTML("")
}
// Safe render raw as HTML
func Safe(raw string) template.HTML {
return template.HTML(raw)
}
// SafeJS renders raw as JS
func SafeJS(raw string) template.JS {
return template.JS(raw)
}
// Str2html render Markdown text to HTML
func Str2html(raw string) template.HTML {
return template.HTML(markup.Sanitize(raw))
}
// Escape escapes a HTML string
func Escape(raw string) string {
return html.EscapeString(raw)
}
// List traversings the list
func List(l *list.List) chan interface{} {
e := l.Front()
c := make(chan interface{})
go func() {
for e != nil {
c <- e.Value
e = e.Next()
}
close(c)
}()
return c
}
// Sha1 returns sha1 sum of string
func Sha1(str string) string {
return base.EncodeSha1(str)
}
// RenderCommitMessage renders commit message with XSS-safe and special links.
func RenderCommitMessage(msg, urlPrefix string, metas map[string]string) template.HTML {
return RenderCommitMessageLink(msg, urlPrefix, "", metas)
}
// RenderCommitMessageLink renders commit message as a XXS-safe link to the provided
// default url, handling for special links.
func RenderCommitMessageLink(msg, urlPrefix, urlDefault string, metas map[string]string) template.HTML {
cleanMsg := template.HTMLEscapeString(msg)
// we can safely assume that it will not return any error, since there
// shouldn't be any special HTML.
fullMessage, err := markup.RenderCommitMessage([]byte(cleanMsg), urlPrefix, urlDefault, metas)
if err != nil {
log.Error("RenderCommitMessage: %v", err)
return ""
}
msgLines := strings.Split(strings.TrimSpace(string(fullMessage)), "\n")
if len(msgLines) == 0 {
return template.HTML("")
}
return template.HTML(msgLines[0])
}
// RenderCommitMessageLinkSubject renders commit message as a XXS-safe link to
// the provided default url, handling for special links without email to links.
func RenderCommitMessageLinkSubject(msg, urlPrefix, urlDefault string, metas map[string]string) template.HTML {
msgLine := strings.TrimLeftFunc(msg, unicode.IsSpace)
lineEnd := strings.IndexByte(msgLine, '\n')
if lineEnd > 0 {
msgLine = msgLine[:lineEnd]
}
msgLine = strings.TrimRightFunc(msgLine, unicode.IsSpace)
if len(msgLine) == 0 {
return template.HTML("")
}
// we can safely assume that it will not return any error, since there
// shouldn't be any special HTML.
renderedMessage, err := markup.RenderCommitMessageSubject([]byte(template.HTMLEscapeString(msgLine)), urlPrefix, urlDefault, metas)
if err != nil {
log.Error("RenderCommitMessageSubject: %v", err)
return template.HTML("")
}
return template.HTML(renderedMessage)
}
// RenderCommitBody extracts the body of a commit message without its title.
func RenderCommitBody(msg, urlPrefix string, metas map[string]string) template.HTML {
msgLine := strings.TrimRightFunc(msg, unicode.IsSpace)
lineEnd := strings.IndexByte(msgLine, '\n')
if lineEnd > 0 {
msgLine = msgLine[lineEnd+1:]
} else {
return template.HTML("")
}
msgLine = strings.TrimLeftFunc(msgLine, unicode.IsSpace)
if len(msgLine) == 0 {
return template.HTML("")
}
renderedMessage, err := markup.RenderCommitMessage([]byte(template.HTMLEscapeString(msgLine)), urlPrefix, "", metas)
if err != nil {
log.Error("RenderCommitMessage: %v", err)
return ""
}
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 alt=":%s:" src="%s/img/emoji/%s.png"></img>`, reaction, setting.StaticURLPrefix, reaction))
}
// RenderNote renders the contents of a git-notes file as a commit message.
func RenderNote(msg, urlPrefix string, metas map[string]string) template.HTML {
cleanMsg := template.HTMLEscapeString(msg)
fullMessage, err := markup.RenderCommitMessage([]byte(cleanMsg), urlPrefix, "", metas)
if err != nil {
log.Error("RenderNote: %v", err)
return ""
}
return template.HTML(string(fullMessage))
}
// IsMultilineCommitMessage checks to see if a commit message contains multiple lines.
func IsMultilineCommitMessage(msg string) bool {
return strings.Count(strings.TrimSpace(msg), "\n") >= 1
}
// Actioner describes an action
type Actioner interface {
GetOpType() models.ActionType
GetActUserName() string
GetRepoUserName() string
GetRepoName() string
GetRepoPath() string
GetRepoLink() string
GetBranch() string
GetContent() string
GetCreate() time.Time
GetIssueInfos() []string
}
// ActionIcon accepts an action operation type and returns an icon class name.
func ActionIcon(opType models.ActionType) string {
switch opType {
case models.ActionCreateRepo, models.ActionTransferRepo:
return "repo"
case models.ActionCommitRepo, models.ActionPushTag, models.ActionDeleteTag, models.ActionDeleteBranch:
return "git-commit"
case models.ActionCreateIssue:
return "issue-opened"
case models.ActionCreatePullRequest:
return "git-pull-request"
case models.ActionCommentIssue, models.ActionCommentPull:
return "comment-discussion"
case models.ActionMergePullRequest:
return "git-merge"
case models.ActionCloseIssue, models.ActionClosePullRequest:
return "issue-closed"
case models.ActionReopenIssue, models.ActionReopenPullRequest:
return "issue-reopened"
case models.ActionMirrorSyncPush, models.ActionMirrorSyncCreate, models.ActionMirrorSyncDelete:
return "repo-clone"
case models.ActionApprovePullRequest:
return "check"
case models.ActionRejectPullRequest:
return "diff"
case models.ActionPublishRelease:
return "tag"
default:
return "question"
}
}
// ActionContent2Commits converts action content to push commits
func ActionContent2Commits(act Actioner) *repository.PushCommits {
push := repository.NewPushCommits()
if err := json.Unmarshal([]byte(act.GetContent()), push); err != nil {
log.Error("json.Unmarshal:\n%s\nERROR: %v", act.GetContent(), err)
}
return push
}
// DiffTypeToStr returns diff type name
func DiffTypeToStr(diffType int) string {
diffTypes := map[int]string{
1: "add", 2: "modify", 3: "del", 4: "rename",
}
return diffTypes[diffType]
}
// DiffLineTypeToStr returns diff line type name
func DiffLineTypeToStr(diffType int) string {
switch diffType {
case 2:
return "add"
case 3:
return "del"
case 4:
return "tag"
}
return "same"
}
// Language specific rules for translating plural texts
var trNLangRules = map[string]func(int64) int{
"en-US": func(cnt int64) int {
if cnt == 1 {
return 0
}
return 1
},
"lv-LV": func(cnt int64) int {
if cnt%10 == 1 && cnt%100 != 11 {
return 0
}
return 1
},
"ru-RU": func(cnt int64) int {
if cnt%10 == 1 && cnt%100 != 11 {
return 0
}
return 1
},
"zh-CN": func(cnt int64) int {
return 0
},
"zh-HK": func(cnt int64) int {
return 0
},
"zh-TW": func(cnt int64) int {
return 0
},
"fr-FR": func(cnt int64) int {
if cnt > -2 && cnt < 2 {
return 0
}
return 1
},
}
// TrN returns key to be used for plural text translation
func TrN(lang string, cnt interface{}, key1, keyN string) string {
var c int64
if t, ok := cnt.(int); ok {
c = int64(t)
} else if t, ok := cnt.(int16); ok {
c = int64(t)
} else if t, ok := cnt.(int32); ok {
c = int64(t)
} else if t, ok := cnt.(int64); ok {
c = t
} else {
return keyN
}
ruleFunc, ok := trNLangRules[lang]
if !ok {
ruleFunc = trNLangRules["en-US"]
}
if ruleFunc(c) == 0 {
return key1
}
return keyN
}
// MigrationIcon returns a Font Awesome name matching the service an issue/comment was migrated from
func MigrationIcon(hostname string) string {
switch hostname {
case "github.com":
return "fa-github"
default:
return "fa-git-alt"
}
}
func buildSubjectBodyTemplate(stpl *texttmpl.Template, btpl *template.Template, name string, content []byte) {
// Split template into subject and body
var subjectContent []byte
bodyContent := content
loc := mailSubjectSplit.FindIndex(content)
if loc != nil {
subjectContent = content[0:loc[0]]
bodyContent = content[loc[1]:]
}
if _, err := stpl.New(name).
Parse(string(subjectContent)); err != nil {
log.Warn("Failed to parse template [%s/subject]: %v", name, err)
}
if _, err := btpl.New(name).
Parse(string(bodyContent)); err != nil {
log.Warn("Failed to parse template [%s/body]: %v", name, err)
}
}