mirror of
https://github.com/go-gitea/gitea
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597d1da96b
Parse base path and tree path so that media links can be correctly created with /media/. Resolves #31294 --------- Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
103 lines
3.5 KiB
Go
103 lines
3.5 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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"path"
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"strings"
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repo_model "code.gitea.io/gitea/models/repo"
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"code.gitea.io/gitea/modules/httplib"
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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/services/context"
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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, urlPathContext, filePath string, wiki bool) {
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// urlPathContext format is "/subpath/{user}/{repo}/src/{branch, commit, tag}/{identifier/path}/{file/dir}"
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// filePath is the path of the file to render if the end user is trying to preview a repo file (mode == "file")
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// filePath will be used as RenderContext.RelativePath
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// for example, when previewing file "/gitea/owner/repo/src/branch/features/feat-123/doc/CHANGE.md", then filePath is "doc/CHANGE.md"
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// and the urlPathContext is "/gitea/owner/repo/src/branch/features/feat-123/doc"
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var markupType, relativePath string
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links := markup.Links{AbsolutePrefix: true}
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if urlPathContext != "" {
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links.Base = fmt.Sprintf("%s%s", httplib.GuessCurrentHostURL(ctx), urlPathContext)
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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: links,
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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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// Issue & comment content
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markupType = markdown.MarkupName
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case "gfm":
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// GitHub Flavored Markdown
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markupType = markdown.MarkupName
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case "file":
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markupType = "" // render the repo file content by its extension
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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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fields := strings.SplitN(strings.TrimPrefix(urlPathContext, setting.AppSubURL+"/"), "/", 5)
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if len(fields) == 5 && fields[2] == "src" && (fields[3] == "branch" || fields[3] == "commit" || fields[3] == "tag") {
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// absolute base prefix is something like "https://host/subpath/{user}/{repo}"
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absoluteBasePrefix := fmt.Sprintf("%s%s/%s", httplib.GuessCurrentAppURL(ctx), fields[0], fields[1])
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fileDir := path.Dir(filePath) // it is "doc" if filePath is "doc/CHANGE.md"
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refPath := strings.Join(fields[3:], "/") // it is "branch/features/feat-12/doc"
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refPath = strings.TrimSuffix(refPath, "/"+fileDir) // now we get the correct branch path: "branch/features/feat-12"
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links = markup.Links{AbsolutePrefix: true, Base: absoluteBasePrefix, BranchPath: refPath, TreePath: fileDir}
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}
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meta := map[string]string{}
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var repoCtx *repo_model.Repository
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if repo != nil && repo.Repository != nil {
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repoCtx = repo.Repository
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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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Repo: repoCtx,
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Links: links,
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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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