mirror of
https://github.com/go-gitea/gitea
synced 2025-11-04 05:18:25 +00:00
78 lines
2.0 KiB
Go
78 lines
2.0 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package repo
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import (
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"bytes"
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"io"
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"net/http"
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"path"
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"code.gitea.io/gitea/models/renderhelper"
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"code.gitea.io/gitea/modules/charset"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/markup"
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"code.gitea.io/gitea/modules/typesniffer"
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"code.gitea.io/gitea/modules/util"
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"code.gitea.io/gitea/services/context"
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)
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// RenderFile renders a file by repos path
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func RenderFile(ctx *context.Context) {
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var blob *git.Blob
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var err error
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if ctx.Repo.TreePath != "" {
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blob, err = ctx.Repo.Commit.GetBlobByPath(ctx.Repo.TreePath)
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} else {
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blob, err = ctx.Repo.GitRepo.GetBlob(ctx.PathParam("sha"))
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}
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if err != nil {
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if git.IsErrNotExist(err) {
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ctx.NotFound(err)
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} else {
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ctx.ServerError("GetBlobByPath", err)
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}
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return
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}
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dataRc, err := blob.DataAsync()
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if err != nil {
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ctx.ServerError("DataAsync", err)
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return
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}
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defer dataRc.Close()
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buf := make([]byte, 1024)
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n, _ := util.ReadAtMost(dataRc, buf)
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buf = buf[:n]
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st := typesniffer.DetectContentType(buf)
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isTextFile := st.IsText()
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rd := charset.ToUTF8WithFallbackReader(io.MultiReader(bytes.NewReader(buf), dataRc), charset.ConvertOpts{})
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ctx.Resp.Header().Add("Content-Security-Policy", "frame-src 'self'; sandbox allow-scripts")
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if markupType := markup.DetectMarkupTypeByFileName(blob.Name()); markupType == "" {
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if isTextFile {
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_, _ = io.Copy(ctx.Resp, rd)
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} else {
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http.Error(ctx.Resp, "Unsupported file type render", http.StatusInternalServerError)
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}
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return
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}
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rctx := renderhelper.NewRenderContextRepoFile(ctx, ctx.Repo.Repository, renderhelper.RepoFileOptions{
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CurrentRefPath: ctx.Repo.RefTypeNameSubURL(),
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CurrentTreePath: path.Dir(ctx.Repo.TreePath),
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}).WithRelativePath(ctx.Repo.TreePath).WithInStandalonePage(true)
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err = markup.Render(rctx, rd, ctx.Resp)
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if err != nil {
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log.Error("Failed to render file %q: %v", ctx.Repo.TreePath, err)
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http.Error(ctx.Resp, "Failed to render file", http.StatusInternalServerError)
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return
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}
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}
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