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https://github.com/go-gitea/gitea
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5f39285d6d
1. non-dev mode is treated as prod mode, to protect users from accidentally running in dev mode if there is a typo in this value. 2. in dev mode, do not need to really exit if there are template errors, because the template errors could be fixed by developer soon and the templates get reloaded, help: * https://github.com/go-gitea/gitea/issues/24845#issuecomment-1557615382 3. Fine tune the mail template loading message.
100 lines
2.7 KiB
Go
100 lines
2.7 KiB
Go
// Copyright 2022 The Gitea 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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"context"
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"html/template"
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"regexp"
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"strings"
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texttmpl "text/template"
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"code.gitea.io/gitea/modules/base"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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)
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var mailSubjectSplit = regexp.MustCompile(`(?m)^-{3,}\s*$`)
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// mailSubjectTextFuncMap returns functions for injecting to text templates, it's only used for mail subject
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func mailSubjectTextFuncMap() texttmpl.FuncMap {
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return texttmpl.FuncMap{
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"dict": dict,
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"Eval": Eval,
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"EllipsisString": base.EllipsisString,
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"AppName": func() string {
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return setting.AppName
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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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}
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}
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func buildSubjectBodyTemplate(stpl *texttmpl.Template, btpl *template.Template, name string, content []byte) {
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// Split template into subject and body
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var subjectContent []byte
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bodyContent := content
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loc := mailSubjectSplit.FindIndex(content)
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if loc != nil {
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subjectContent = content[0:loc[0]]
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bodyContent = content[loc[1]:]
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}
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if _, err := stpl.New(name).
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Parse(string(subjectContent)); err != nil {
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log.Warn("Failed to parse template [%s/subject]: %v", name, err)
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}
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if _, err := btpl.New(name).
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Parse(string(bodyContent)); err != nil {
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log.Warn("Failed to parse template [%s/body]: %v", name, err)
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}
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}
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// Mailer provides the templates required for sending notification mails.
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func Mailer(ctx context.Context) (*texttmpl.Template, *template.Template) {
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subjectTemplates := texttmpl.New("")
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bodyTemplates := template.New("")
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subjectTemplates.Funcs(mailSubjectTextFuncMap())
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bodyTemplates.Funcs(NewFuncMap())
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assetFS := AssetFS()
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refreshTemplates := func(firstRun bool) {
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if !firstRun {
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log.Trace("Reloading mail templates")
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}
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assetPaths, err := ListMailTemplateAssetNames(assetFS)
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if err != nil {
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log.Error("Failed to list mail templates: %v", err)
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return
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}
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for _, assetPath := range assetPaths {
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content, layerName, err := assetFS.ReadLayeredFile(assetPath)
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if err != nil {
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log.Warn("Failed to read mail template %s by %s: %v", assetPath, layerName, err)
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continue
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}
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tmplName := strings.TrimPrefix(strings.TrimSuffix(assetPath, ".tmpl"), "mail/")
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if firstRun {
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log.Trace("Adding mail template %s: %s by %s", tmplName, assetPath, layerName)
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}
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buildSubjectBodyTemplate(subjectTemplates, bodyTemplates, tmplName, content)
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}
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}
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refreshTemplates(true)
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if !setting.IsProd {
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// Now subjectTemplates and bodyTemplates are both synchronized
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// thus it is safe to call refresh from a different goroutine
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go assetFS.WatchLocalChanges(ctx, func() {
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refreshTemplates(false)
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})
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}
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return subjectTemplates, bodyTemplates
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}
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