gitea/modules/templates/helper.go
wxiaoguang 5675efb3e0
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Fix duplicate dropdown dividers (#32760)
Fix #27466

The problem is that any item in the menu could be hidden, pure CSS won't
work, and dropdown's builtin "hideDividers" doesn't work with our "scope
dividers". The newly introduced "archived" label makes the dividers
regression more.
2024-12-09 07:54:59 +00:00

365 lines
10 KiB
Go

// Copyright 2018 The Gitea Authors. All rights reserved.
// Copyright 2014 The Gogs Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package templates
import (
"fmt"
"html"
"html/template"
"net/url"
"reflect"
"strings"
"time"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/htmlutil"
"code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/svg"
"code.gitea.io/gitea/modules/templates/eval"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/services/gitdiff"
"code.gitea.io/gitea/services/webtheme"
)
// NewFuncMap returns functions for injecting to templates
func NewFuncMap() template.FuncMap {
return map[string]any{
"ctx": func() any { return nil }, // template context function
"DumpVar": dumpVar,
"NIL": func() any { return nil },
// -----------------------------------------------------------------
// html/template related functions
"dict": dict, // it's lowercase because this name has been widely used. Our other functions should have uppercase names.
"Iif": iif,
"Eval": evalTokens,
"SafeHTML": safeHTML,
"HTMLFormat": htmlutil.HTMLFormat,
"HTMLEscape": htmlEscape,
"QueryEscape": queryEscape,
"QueryBuild": queryBuild,
"JSEscape": jsEscapeSafe,
"SanitizeHTML": SanitizeHTML,
"URLJoin": util.URLJoin,
"DotEscape": dotEscape,
"PathEscape": url.PathEscape,
"PathEscapeSegments": util.PathEscapeSegments,
// utils
"StringUtils": NewStringUtils,
"SliceUtils": NewSliceUtils,
"JsonUtils": NewJsonUtils,
"DateUtils": NewDateUtils,
// -----------------------------------------------------------------
// svg / avatar / icon / color
"svg": svg.RenderHTML,
"EntryIcon": base.EntryIcon,
"MigrationIcon": migrationIcon,
"ActionIcon": actionIcon,
"SortArrow": sortArrow,
"ContrastColor": util.ContrastColor,
// -----------------------------------------------------------------
// time / number / format
"FileSize": base.FileSize,
"CountFmt": base.FormatNumberSI,
"Sec2Time": util.SecToTime,
"TimeEstimateString": timeEstimateString,
"LoadTimes": func(startTime time.Time) string {
return fmt.Sprint(time.Since(startTime).Nanoseconds()/1e6) + "ms"
},
// -----------------------------------------------------------------
// setting
"AppName": func() string {
return setting.AppName
},
"AppSubUrl": func() string {
return setting.AppSubURL
},
"AssetUrlPrefix": func() string {
return setting.StaticURLPrefix + "/assets"
},
"AppUrl": func() string {
// The usage of AppUrl should be avoided as much as possible,
// because the AppURL(ROOT_URL) may not match user's visiting site and the ROOT_URL in app.ini may be incorrect.
// And it's difficult for Gitea to guess absolute URL correctly with zero configuration,
// because Gitea doesn't know whether the scheme is HTTP or HTTPS unless the reverse proxy could tell Gitea.
return setting.AppURL
},
"AppVer": func() string {
return setting.AppVer
},
"AppDomain": func() string { // documented in mail-templates.md
return setting.Domain
},
"AssetVersion": func() string {
return setting.AssetVersion
},
"DefaultShowFullName": func() bool {
return setting.UI.DefaultShowFullName
},
"ShowFooterTemplateLoadTime": func() bool {
return setting.Other.ShowFooterTemplateLoadTime
},
"ShowFooterPoweredBy": func() bool {
return setting.Other.ShowFooterPoweredBy
},
"AllowedReactions": func() []string {
return setting.UI.Reactions
},
"CustomEmojis": func() map[string]string {
return setting.UI.CustomEmojisMap
},
"MetaAuthor": func() string {
return setting.UI.Meta.Author
},
"MetaDescription": func() string {
return setting.UI.Meta.Description
},
"MetaKeywords": func() string {
return setting.UI.Meta.Keywords
},
"EnableTimetracking": func() bool {
return setting.Service.EnableTimetracking
},
"DisableGitHooks": func() bool {
return setting.DisableGitHooks
},
"DisableWebhooks": func() bool {
return setting.DisableWebhooks
},
"DisableImportLocal": func() bool {
return !setting.ImportLocalPaths
},
"UserThemeName": userThemeName,
"NotificationSettings": func() map[string]any {
return map[string]any{
"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),
}
},
"MermaidMaxSourceCharacters": func() int {
return setting.MermaidMaxSourceCharacters
},
// -----------------------------------------------------------------
// render
"RenderCodeBlock": renderCodeBlock,
"ReactionToEmoji": reactionToEmoji,
// -----------------------------------------------------------------
// misc
"ShortSha": base.ShortSha,
"ActionContent2Commits": ActionContent2Commits,
"IsMultilineCommitMessage": isMultilineCommitMessage,
"CommentMustAsDiff": gitdiff.CommentMustAsDiff,
"MirrorRemoteAddress": mirrorRemoteAddress,
"FilenameIsImage": filenameIsImage,
"TabSizeClass": tabSizeClass,
// for backward compatibility only, do not use them anymore
"TimeSince": timeSinceLegacy,
"TimeSinceUnix": timeSinceLegacy,
"DateTime": dateTimeLegacy,
"RenderEmoji": renderEmojiLegacy,
"RenderLabel": renderLabelLegacy,
"RenderLabels": renderLabelsLegacy,
"RenderIssueTitle": renderIssueTitleLegacy,
"RenderMarkdownToHtml": renderMarkdownToHtmlLegacy,
"RenderCommitMessage": renderCommitMessageLegacy,
"RenderCommitMessageLinkSubject": renderCommitMessageLinkSubjectLegacy,
"RenderCommitBody": renderCommitBodyLegacy,
}
}
// safeHTML render raw as HTML
func safeHTML(s any) template.HTML {
switch v := s.(type) {
case string:
return template.HTML(v)
case template.HTML:
return v
}
panic(fmt.Sprintf("unexpected type %T", s))
}
// SanitizeHTML sanitizes the input by pre-defined markdown rules
func SanitizeHTML(s string) template.HTML {
return template.HTML(markup.Sanitize(s))
}
func htmlEscape(s any) template.HTML {
switch v := s.(type) {
case string:
return template.HTML(html.EscapeString(v))
case template.HTML:
return v
}
panic(fmt.Sprintf("unexpected type %T", s))
}
func jsEscapeSafe(s string) template.HTML {
return template.HTML(template.JSEscapeString(s))
}
func queryEscape(s string) template.URL {
return template.URL(url.QueryEscape(s))
}
// dotEscape wraps a dots in names with ZWJ [U+200D] in order to prevent auto-linkers from detecting these as urls
func dotEscape(raw string) string {
return strings.ReplaceAll(raw, ".", "\u200d.\u200d")
}
// iif is an "inline-if", similar util.Iif[T] but templates need the non-generic version,
// and it could be simply used as "{{iif expr trueVal}}" (omit the falseVal).
func iif(condition any, vals ...any) any {
if isTemplateTruthy(condition) {
return vals[0]
} else if len(vals) > 1 {
return vals[1]
}
return nil
}
func isTemplateTruthy(v any) bool {
if v == nil {
return false
}
rv := reflect.ValueOf(v)
switch rv.Kind() {
case reflect.Bool:
return rv.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return rv.Int() != 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return rv.Uint() != 0
case reflect.Float32, reflect.Float64:
return rv.Float() != 0
case reflect.Complex64, reflect.Complex128:
return rv.Complex() != 0
case reflect.String, reflect.Slice, reflect.Array, reflect.Map:
return rv.Len() > 0
case reflect.Struct:
return true
default:
return !rv.IsNil()
}
}
// evalTokens evaluates the expression by tokens and returns the result, see the comment of eval.Expr for details.
// To use this helper function in templates, pass each token as a separate parameter.
//
// {{ $int64 := Eval $var "+" 1 }}
// {{ $float64 := Eval $var "+" 1.0 }}
//
// Golang's template supports comparable int types, so the int64 result can be used in later statements like {{if lt $int64 10}}
func evalTokens(tokens ...any) (any, error) {
n, err := eval.Expr(tokens...)
return n.Value, err
}
func userThemeName(user *user_model.User) string {
if user == nil || user.Theme == "" {
return setting.UI.DefaultTheme
}
if webtheme.IsThemeAvailable(user.Theme) {
return user.Theme
}
return setting.UI.DefaultTheme
}
func timeEstimateString(timeSec any) string {
v, _ := util.ToInt64(timeSec)
if v == 0 {
return ""
}
return util.TimeEstimateString(v)
}
func queryBuild(a ...any) template.URL {
var s string
if len(a)%2 == 1 {
if v, ok := a[0].(string); ok {
if v == "" || (v[0] != '?' && v[0] != '&') {
panic("queryBuild: invalid argument")
}
s = v
} else if v, ok := a[0].(template.URL); ok {
s = string(v)
} else {
panic("queryBuild: invalid argument")
}
}
for i := len(a) % 2; i < len(a); i += 2 {
k, ok := a[i].(string)
if !ok {
panic("queryBuild: invalid argument")
}
var v string
if va, ok := a[i+1].(string); ok {
v = va
} else if a[i+1] != nil {
v = fmt.Sprint(a[i+1])
}
// pos1 to pos2 is the "k=v&" part, "&" is optional
pos1 := strings.Index(s, "&"+k+"=")
if pos1 != -1 {
pos1++
} else {
pos1 = strings.Index(s, "?"+k+"=")
if pos1 != -1 {
pos1++
} else if strings.HasPrefix(s, k+"=") {
pos1 = 0
}
}
pos2 := len(s)
if pos1 == -1 {
pos1 = len(s)
} else {
pos2 = pos1 + 1
for pos2 < len(s) && s[pos2-1] != '&' {
pos2++
}
}
if v != "" {
sep := ""
hasPrefixSep := pos1 == 0 || (pos1 <= len(s) && (s[pos1-1] == '?' || s[pos1-1] == '&'))
if !hasPrefixSep {
sep = "&"
}
s = s[:pos1] + sep + k + "=" + url.QueryEscape(v) + "&" + s[pos2:]
} else {
s = s[:pos1] + s[pos2:]
}
}
if s != "" && s != "&" && s[len(s)-1] == '&' {
s = s[:len(s)-1]
}
return template.URL(s)
}
func panicIfDevOrTesting() {
if !setting.IsProd || setting.IsInTesting {
panic("legacy template functions are for backward compatibility only, do not use them in new code")
}
}