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637451a45e
Fixes #26548 This PR refactors the rendering of markup links. The old code uses `strings.Replace` to change some urls while the new code uses more context to decide which link should be generated. The added tests should ensure the same output for the old and new behaviour (besides the bug). We may need to refactor the rendering a bit more to make it clear how the different helper methods render the input string. There are lots of options (resolve links / images / mentions / git hashes / emojis / ...) but you don't really know what helper uses which options. For example, we currently support images in the user description which should not be allowed I think: <details> <summary>Profile</summary> https://try.gitea.io/KN4CK3R  </details> --------- Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
97 lines
2.4 KiB
Go
97 lines
2.4 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
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// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package common
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import (
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"fmt"
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"net/http"
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"strings"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/markup"
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"code.gitea.io/gitea/modules/markup/markdown"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/util"
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"mvdan.cc/xurls/v2"
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)
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// RenderMarkup renders markup text for the /markup and /markdown endpoints
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func RenderMarkup(ctx *context.Base, repo *context.Repository, mode, text, urlPrefix, filePath string, wiki bool) {
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var markupType string
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relativePath := ""
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if len(text) == 0 {
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_, _ = ctx.Write([]byte(""))
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return
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}
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switch mode {
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case "markdown":
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// Raw markdown
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if err := markdown.RenderRaw(&markup.RenderContext{
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Ctx: ctx,
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Links: markup.Links{
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Base: urlPrefix,
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},
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}, strings.NewReader(text), ctx.Resp); err != nil {
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ctx.Error(http.StatusInternalServerError, err.Error())
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}
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return
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case "comment":
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// Comment as markdown
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markupType = markdown.MarkupName
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case "gfm":
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// Github Flavored Markdown as document
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markupType = markdown.MarkupName
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case "file":
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// File as document based on file extension
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markupType = ""
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relativePath = filePath
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default:
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ctx.Error(http.StatusUnprocessableEntity, fmt.Sprintf("Unknown mode: %s", mode))
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return
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}
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if !strings.HasPrefix(setting.AppSubURL+"/", urlPrefix) {
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// check if urlPrefix is already set to a URL
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linkRegex, _ := xurls.StrictMatchingScheme("https?://")
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m := linkRegex.FindStringIndex(urlPrefix)
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if m == nil {
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urlPrefix = util.URLJoin(setting.AppURL, urlPrefix)
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}
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}
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meta := map[string]string{}
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if repo != nil && repo.Repository != nil {
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if mode == "comment" {
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meta = repo.Repository.ComposeMetas(ctx)
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} else {
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meta = repo.Repository.ComposeDocumentMetas(ctx)
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}
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}
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if mode != "comment" {
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meta["mode"] = "document"
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}
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if err := markup.Render(&markup.RenderContext{
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Ctx: ctx,
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Links: markup.Links{
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Base: urlPrefix,
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},
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Metas: meta,
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IsWiki: wiki,
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Type: markupType,
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RelativePath: relativePath,
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}, strings.NewReader(text), ctx.Resp); err != nil {
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if markup.IsErrUnsupportedRenderExtension(err) {
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ctx.Error(http.StatusUnprocessableEntity, err.Error())
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} else {
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ctx.Error(http.StatusInternalServerError, err.Error())
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}
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return
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}
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}
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