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authorBrecht Van Lommel <brecht@blender.org>2023-03-24 07:12:23 +0100
committerGitHub <noreply@github.com>2023-03-24 14:12:23 +0800
commit84daddc2fa74393cdc13371b0cc44f0444cfdae0 (patch)
treeeaf75d3173ee67d65288accef86bbb7c6c08535e /routers/common/markup.go
parent9e04627acaaa853e5269f98f53f2615077cfb028 (diff)
downloadgitea-84daddc2fa74393cdc13371b0cc44f0444cfdae0.tar.gz
gitea-84daddc2fa74393cdc13371b0cc44f0444cfdae0.zip
Editor preview support for external renderers (#23333)
Remove `[repository.editor] PREVIEWABLE_FILE_MODES` setting that seemed like it was intended to support this but did not work. Instead, whenever viewing a file shows a preview, also have a Preview tab in the file editor. Add new `/markup` web and API endpoints with `comment`, `gfm`, `markdown` and new `file` mode that uses a file path to determine the renderer. Remove `/markdown` web endpoint but keep the API for backwards and GitHub compatibility. ## ⚠️ BREAKING ⚠️ The `[repository.editor] PREVIEWABLE_FILE_MODES` setting was removed. This setting served no practical purpose and was not working correctly. Instead a preview tab is always shown in the file editor when supported. --------- Co-authored-by: zeripath <art27@cantab.net> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Diffstat (limited to 'routers/common/markup.go')
-rw-r--r--routers/common/markup.go92
1 files changed, 92 insertions, 0 deletions
diff --git a/routers/common/markup.go b/routers/common/markup.go
new file mode 100644
index 0000000000..89f24e0007
--- /dev/null
+++ b/routers/common/markup.go
@@ -0,0 +1,92 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package common
+
+import (
+ "fmt"
+ "net/http"
+ "strings"
+
+ "code.gitea.io/gitea/modules/context"
+ "code.gitea.io/gitea/modules/markup"
+ "code.gitea.io/gitea/modules/markup/markdown"
+ "code.gitea.io/gitea/modules/setting"
+ "code.gitea.io/gitea/modules/util"
+
+ "mvdan.cc/xurls/v2"
+)
+
+// RenderMarkup renders markup text for the /markup and /markdown endpoints
+func RenderMarkup(ctx *context.Context, mode, text, urlPrefix, filePath string, wiki bool) {
+ markupType := ""
+ relativePath := ""
+
+ if len(text) == 0 {
+ _, _ = ctx.Write([]byte(""))
+ return
+ }
+
+ switch mode {
+ case "markdown":
+ // Raw markdown
+ if err := markdown.RenderRaw(&markup.RenderContext{
+ Ctx: ctx,
+ URLPrefix: urlPrefix,
+ }, strings.NewReader(text), ctx.Resp); err != nil {
+ ctx.Error(http.StatusInternalServerError, err.Error())
+ }
+ return
+ case "comment":
+ // Comment as markdown
+ markupType = markdown.MarkupName
+ case "gfm":
+ // Github Flavored Markdown as document
+ markupType = markdown.MarkupName
+ case "file":
+ // File as document based on file extension
+ markupType = ""
+ relativePath = filePath
+ default:
+ ctx.Error(http.StatusUnprocessableEntity, fmt.Sprintf("Unknown mode: %s", mode))
+ return
+ }
+
+ if !strings.HasPrefix(setting.AppSubURL+"/", urlPrefix) {
+ // check if urlPrefix is already set to a URL
+ linkRegex, _ := xurls.StrictMatchingScheme("https?://")
+ m := linkRegex.FindStringIndex(urlPrefix)
+ if m == nil {
+ urlPrefix = util.URLJoin(setting.AppURL, urlPrefix)
+ }
+ }
+
+ meta := map[string]string{}
+ if ctx.Repo != nil && ctx.Repo.Repository != nil {
+ if mode == "comment" {
+ meta = ctx.Repo.Repository.ComposeMetas()
+ } else {
+ meta = ctx.Repo.Repository.ComposeDocumentMetas()
+ }
+ }
+ if mode != "comment" {
+ meta["mode"] = "document"
+ }
+
+ if err := markup.Render(&markup.RenderContext{
+ Ctx: ctx,
+ URLPrefix: urlPrefix,
+ Metas: meta,
+ IsWiki: wiki,
+ Type: markupType,
+ RelativePath: relativePath,
+ }, strings.NewReader(text), ctx.Resp); err != nil {
+ if markup.IsErrUnsupportedRenderExtension(err) {
+ ctx.Error(http.StatusUnprocessableEntity, err.Error())
+ } else {
+ ctx.Error(http.StatusInternalServerError, err.Error())
+ }
+ return
+ }
+}