mirror of https://github.com/go-gitea/gitea.git
307 lines
9.2 KiB
Go
307 lines
9.2 KiB
Go
// Copyright 2018 The Gitea Authors. All rights reserved.
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// Copyright 2014 The Gogs Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package templates
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import (
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"fmt"
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"html"
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"html/template"
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"net/url"
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"reflect"
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"slices"
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"strings"
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"time"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/base"
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"code.gitea.io/gitea/modules/markup"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/svg"
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"code.gitea.io/gitea/modules/templates/eval"
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"code.gitea.io/gitea/modules/util"
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"code.gitea.io/gitea/services/gitdiff"
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"code.gitea.io/gitea/services/webtheme"
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)
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// NewFuncMap returns functions for injecting to templates
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func NewFuncMap() template.FuncMap {
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return map[string]any{
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"ctx": func() any { return nil }, // template context function
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"DumpVar": dumpVar,
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"NIL": func() any { return nil },
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// -----------------------------------------------------------------
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// html/template related functions
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"dict": dict, // it's lowercase because this name has been widely used. Our other functions should have uppercase names.
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"Iif": iif,
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"Eval": evalTokens,
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"SafeHTML": safeHTML,
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"HTMLFormat": HTMLFormat,
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"HTMLEscape": htmlEscape,
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"QueryEscape": queryEscape,
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"JSEscape": jsEscapeSafe,
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"SanitizeHTML": SanitizeHTML,
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"URLJoin": util.URLJoin,
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"DotEscape": dotEscape,
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"PathEscape": url.PathEscape,
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"PathEscapeSegments": util.PathEscapeSegments,
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// utils
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"StringUtils": NewStringUtils,
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"SliceUtils": NewSliceUtils,
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"JsonUtils": NewJsonUtils,
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"DateUtils": NewDateUtils,
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// -----------------------------------------------------------------
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// svg / avatar / icon / color
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"svg": svg.RenderHTML,
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"EntryIcon": base.EntryIcon,
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"MigrationIcon": migrationIcon,
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"ActionIcon": actionIcon,
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"SortArrow": sortArrow,
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"ContrastColor": util.ContrastColor,
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// -----------------------------------------------------------------
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// time / number / format
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"FileSize": base.FileSize,
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"CountFmt": base.FormatNumberSI,
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"Sec2Time": util.SecToTime,
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"LoadTimes": func(startTime time.Time) string {
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return fmt.Sprint(time.Since(startTime).Nanoseconds()/1e6) + "ms"
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},
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// -----------------------------------------------------------------
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// setting
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"AppName": func() string {
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return setting.AppName
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},
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"AppSubUrl": func() string {
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return setting.AppSubURL
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},
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"AssetUrlPrefix": func() string {
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return setting.StaticURLPrefix + "/assets"
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},
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"AppUrl": func() string {
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// The usage of AppUrl should be avoided as much as possible,
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// because the AppURL(ROOT_URL) may not match user's visiting site and the ROOT_URL in app.ini may be incorrect.
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// And it's difficult for Gitea to guess absolute URL correctly with zero configuration,
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// because Gitea doesn't know whether the scheme is HTTP or HTTPS unless the reverse proxy could tell Gitea.
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return setting.AppURL
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},
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"AppVer": func() string {
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return setting.AppVer
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},
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"AppDomain": func() string { // documented in mail-templates.md
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return setting.Domain
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},
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"AssetVersion": func() string {
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return setting.AssetVersion
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},
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"DefaultShowFullName": func() bool {
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return setting.UI.DefaultShowFullName
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},
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"ShowFooterTemplateLoadTime": func() bool {
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return setting.Other.ShowFooterTemplateLoadTime
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},
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"ShowFooterPoweredBy": func() bool {
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return setting.Other.ShowFooterPoweredBy
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},
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"AllowedReactions": func() []string {
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return setting.UI.Reactions
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},
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"CustomEmojis": func() map[string]string {
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return setting.UI.CustomEmojisMap
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},
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"MetaAuthor": func() string {
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return setting.UI.Meta.Author
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},
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"MetaDescription": func() string {
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return setting.UI.Meta.Description
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},
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"MetaKeywords": func() string {
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return setting.UI.Meta.Keywords
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},
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"EnableTimetracking": func() bool {
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return setting.Service.EnableTimetracking
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},
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"DisableGitHooks": func() bool {
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return setting.DisableGitHooks
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},
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"DisableWebhooks": func() bool {
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return setting.DisableWebhooks
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},
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"DisableImportLocal": func() bool {
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return !setting.ImportLocalPaths
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},
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"UserThemeName": userThemeName,
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"NotificationSettings": func() map[string]any {
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return map[string]any{
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"MinTimeout": int(setting.UI.Notification.MinTimeout / time.Millisecond),
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"TimeoutStep": int(setting.UI.Notification.TimeoutStep / time.Millisecond),
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"MaxTimeout": int(setting.UI.Notification.MaxTimeout / time.Millisecond),
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"EventSourceUpdateTime": int(setting.UI.Notification.EventSourceUpdateTime / time.Millisecond),
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}
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},
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"MermaidMaxSourceCharacters": func() int {
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return setting.MermaidMaxSourceCharacters
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},
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// -----------------------------------------------------------------
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// render
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"RenderCodeBlock": renderCodeBlock,
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"ReactionToEmoji": reactionToEmoji,
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// -----------------------------------------------------------------
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// misc
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"ShortSha": base.ShortSha,
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"ActionContent2Commits": ActionContent2Commits,
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"IsMultilineCommitMessage": isMultilineCommitMessage,
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"CommentMustAsDiff": gitdiff.CommentMustAsDiff,
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"MirrorRemoteAddress": mirrorRemoteAddress,
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"FilenameIsImage": filenameIsImage,
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"TabSizeClass": tabSizeClass,
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// for backward compatibility only, do not use them anymore
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"TimeSince": timeSinceLegacy,
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"TimeSinceUnix": timeSinceLegacy,
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"DateTime": dateTimeLegacy,
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"RenderEmoji": renderEmojiLegacy,
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"RenderLabel": renderLabelLegacy,
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"RenderLabels": renderLabelsLegacy,
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"RenderIssueTitle": renderIssueTitleLegacy,
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"RenderMarkdownToHtml": renderMarkdownToHtmlLegacy,
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"RenderCommitMessage": renderCommitMessageLegacy,
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"RenderCommitMessageLinkSubject": renderCommitMessageLinkSubjectLegacy,
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"RenderCommitBody": renderCommitBodyLegacy,
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}
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}
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func HTMLFormat(s string, rawArgs ...any) template.HTML {
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args := slices.Clone(rawArgs)
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for i, v := range args {
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switch v := v.(type) {
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case nil, bool, int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64, float32, float64, template.HTML:
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// for most basic types (including template.HTML which is safe), just do nothing and use it
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case string:
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args[i] = template.HTMLEscapeString(v)
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case fmt.Stringer:
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args[i] = template.HTMLEscapeString(v.String())
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default:
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args[i] = template.HTMLEscapeString(fmt.Sprint(v))
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}
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}
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return template.HTML(fmt.Sprintf(s, args...))
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}
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// safeHTML render raw as HTML
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func safeHTML(s any) template.HTML {
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switch v := s.(type) {
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case string:
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return template.HTML(v)
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case template.HTML:
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return v
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}
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panic(fmt.Sprintf("unexpected type %T", s))
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}
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// SanitizeHTML sanitizes the input by pre-defined markdown rules
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func SanitizeHTML(s string) template.HTML {
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return template.HTML(markup.Sanitize(s))
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}
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func htmlEscape(s any) template.HTML {
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switch v := s.(type) {
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case string:
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return template.HTML(html.EscapeString(v))
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case template.HTML:
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return v
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}
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panic(fmt.Sprintf("unexpected type %T", s))
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}
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func jsEscapeSafe(s string) template.HTML {
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return template.HTML(template.JSEscapeString(s))
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}
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func queryEscape(s string) template.URL {
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return template.URL(url.QueryEscape(s))
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}
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// dotEscape wraps a dots in names with ZWJ [U+200D] in order to prevent auto-linkers from detecting these as urls
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func dotEscape(raw string) string {
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return strings.ReplaceAll(raw, ".", "\u200d.\u200d")
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}
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// iif is an "inline-if", similar util.Iif[T] but templates need the non-generic version,
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// and it could be simply used as "{{iif expr trueVal}}" (omit the falseVal).
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func iif(condition any, vals ...any) any {
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if isTemplateTruthy(condition) {
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return vals[0]
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} else if len(vals) > 1 {
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return vals[1]
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}
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return nil
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}
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func isTemplateTruthy(v any) bool {
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if v == nil {
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return false
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}
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rv := reflect.ValueOf(v)
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switch rv.Kind() {
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case reflect.Bool:
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return rv.Bool()
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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return rv.Int() != 0
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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return rv.Uint() != 0
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case reflect.Float32, reflect.Float64:
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return rv.Float() != 0
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case reflect.Complex64, reflect.Complex128:
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return rv.Complex() != 0
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case reflect.String, reflect.Slice, reflect.Array, reflect.Map:
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return rv.Len() > 0
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case reflect.Struct:
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return true
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default:
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return !rv.IsNil()
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}
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}
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// evalTokens evaluates the expression by tokens and returns the result, see the comment of eval.Expr for details.
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// To use this helper function in templates, pass each token as a separate parameter.
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//
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// {{ $int64 := Eval $var "+" 1 }}
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// {{ $float64 := Eval $var "+" 1.0 }}
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//
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// Golang's template supports comparable int types, so the int64 result can be used in later statements like {{if lt $int64 10}}
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func evalTokens(tokens ...any) (any, error) {
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n, err := eval.Expr(tokens...)
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return n.Value, err
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}
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func userThemeName(user *user_model.User) string {
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if user == nil || user.Theme == "" {
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return setting.UI.DefaultTheme
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}
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if webtheme.IsThemeAvailable(user.Theme) {
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return user.Theme
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}
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return setting.UI.DefaultTheme
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}
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func panicIfDevOrTesting() {
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if !setting.IsProd || setting.IsInTesting {
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panic("legacy template functions are for backward compatibility only, do not use them in new code")
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}
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}
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