gitea/routers/web/repo/view_file.go
yp05327 faf5705d29
GitHub like repo home page (#32213)
Move some components (description, license, release, language stats) to sidebar

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
2024-12-06 14:29:04 +00:00

314 lines
11 KiB
Go

// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package repo
import (
"bytes"
"fmt"
"image"
"io"
"path"
"slices"
"strings"
git_model "code.gitea.io/gitea/models/git"
issue_model "code.gitea.io/gitea/models/issues"
"code.gitea.io/gitea/models/renderhelper"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/actions"
"code.gitea.io/gitea/modules/charset"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/highlight"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/services/context"
issue_service "code.gitea.io/gitea/services/issue"
files_service "code.gitea.io/gitea/services/repository/files"
"github.com/nektos/act/pkg/model"
)
func renderFile(ctx *context.Context, entry *git.TreeEntry) {
ctx.Data["IsViewFile"] = true
ctx.Data["HideRepoInfo"] = true
blob := entry.Blob()
buf, dataRc, fInfo, err := getFileReader(ctx, ctx.Repo.Repository.ID, blob)
if err != nil {
ctx.ServerError("getFileReader", err)
return
}
defer dataRc.Close()
ctx.Data["Title"] = ctx.Tr("repo.file.title", ctx.Repo.Repository.Name+"/"+path.Base(ctx.Repo.TreePath), ctx.Repo.RefName)
ctx.Data["FileIsSymlink"] = entry.IsLink()
ctx.Data["FileName"] = blob.Name()
ctx.Data["RawFileLink"] = ctx.Repo.RepoLink + "/raw/" + ctx.Repo.BranchNameSubURL() + "/" + util.PathEscapeSegments(ctx.Repo.TreePath)
commit, err := ctx.Repo.Commit.GetCommitByPath(ctx.Repo.TreePath)
if err != nil {
ctx.ServerError("GetCommitByPath", err)
return
}
if !loadLatestCommitData(ctx, commit) {
return
}
if ctx.Repo.TreePath == ".editorconfig" {
_, editorconfigWarning, editorconfigErr := ctx.Repo.GetEditorconfig(ctx.Repo.Commit)
if editorconfigWarning != nil {
ctx.Data["FileWarning"] = strings.TrimSpace(editorconfigWarning.Error())
}
if editorconfigErr != nil {
ctx.Data["FileError"] = strings.TrimSpace(editorconfigErr.Error())
}
} else if issue_service.IsTemplateConfig(ctx.Repo.TreePath) {
_, issueConfigErr := issue_service.GetTemplateConfig(ctx.Repo.GitRepo, ctx.Repo.TreePath, ctx.Repo.Commit)
if issueConfigErr != nil {
ctx.Data["FileError"] = strings.TrimSpace(issueConfigErr.Error())
}
} else if actions.IsWorkflow(ctx.Repo.TreePath) {
content, err := actions.GetContentFromEntry(entry)
if err != nil {
log.Error("actions.GetContentFromEntry: %v", err)
}
_, workFlowErr := model.ReadWorkflow(bytes.NewReader(content))
if workFlowErr != nil {
ctx.Data["FileError"] = ctx.Locale.Tr("actions.runs.invalid_workflow_helper", workFlowErr.Error())
}
} else if slices.Contains([]string{"CODEOWNERS", "docs/CODEOWNERS", ".gitea/CODEOWNERS"}, ctx.Repo.TreePath) {
if data, err := blob.GetBlobContent(setting.UI.MaxDisplayFileSize); err == nil {
_, warnings := issue_model.GetCodeOwnersFromContent(ctx, data)
if len(warnings) > 0 {
ctx.Data["FileWarning"] = strings.Join(warnings, "\n")
}
}
}
isDisplayingSource := ctx.FormString("display") == "source"
isDisplayingRendered := !isDisplayingSource
if fInfo.isLFSFile {
ctx.Data["RawFileLink"] = ctx.Repo.RepoLink + "/media/" + ctx.Repo.BranchNameSubURL() + "/" + util.PathEscapeSegments(ctx.Repo.TreePath)
}
isRepresentableAsText := fInfo.st.IsRepresentableAsText()
if !isRepresentableAsText {
// If we can't show plain text, always try to render.
isDisplayingSource = false
isDisplayingRendered = true
}
ctx.Data["IsLFSFile"] = fInfo.isLFSFile
ctx.Data["FileSize"] = fInfo.fileSize
ctx.Data["IsTextFile"] = fInfo.isTextFile
ctx.Data["IsRepresentableAsText"] = isRepresentableAsText
ctx.Data["IsDisplayingSource"] = isDisplayingSource
ctx.Data["IsDisplayingRendered"] = isDisplayingRendered
ctx.Data["IsExecutable"] = entry.IsExecutable()
isTextSource := fInfo.isTextFile || isDisplayingSource
ctx.Data["IsTextSource"] = isTextSource
if isTextSource {
ctx.Data["CanCopyContent"] = true
}
// Check LFS Lock
lfsLock, err := git_model.GetTreePathLock(ctx, ctx.Repo.Repository.ID, ctx.Repo.TreePath)
ctx.Data["LFSLock"] = lfsLock
if err != nil {
ctx.ServerError("GetTreePathLock", err)
return
}
if lfsLock != nil {
u, err := user_model.GetUserByID(ctx, lfsLock.OwnerID)
if err != nil {
ctx.ServerError("GetTreePathLock", err)
return
}
ctx.Data["LFSLockOwner"] = u.Name
ctx.Data["LFSLockOwnerHomeLink"] = u.HomeLink()
ctx.Data["LFSLockHint"] = ctx.Tr("repo.editor.this_file_locked")
}
// Assume file is not editable first.
if fInfo.isLFSFile {
ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.cannot_edit_lfs_files")
} else if !isRepresentableAsText {
ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.cannot_edit_non_text_files")
}
switch {
case isRepresentableAsText:
if fInfo.fileSize >= setting.UI.MaxDisplayFileSize {
ctx.Data["IsFileTooLarge"] = true
break
}
if fInfo.st.IsSvgImage() {
ctx.Data["IsImageFile"] = true
ctx.Data["CanCopyContent"] = true
ctx.Data["HasSourceRenderedToggle"] = true
}
rd := charset.ToUTF8WithFallbackReader(io.MultiReader(bytes.NewReader(buf), dataRc), charset.ConvertOpts{})
shouldRenderSource := ctx.FormString("display") == "source"
readmeExist := util.IsReadmeFileName(blob.Name())
ctx.Data["ReadmeExist"] = readmeExist
markupType := markup.DetectMarkupTypeByFileName(blob.Name())
if markupType == "" {
markupType = markup.DetectRendererType(blob.Name(), bytes.NewReader(buf))
}
if markupType != "" {
ctx.Data["HasSourceRenderedToggle"] = true
}
if markupType != "" && !shouldRenderSource {
ctx.Data["IsMarkup"] = true
ctx.Data["MarkupType"] = markupType
metas := ctx.Repo.Repository.ComposeDocumentMetas(ctx)
metas["BranchNameSubURL"] = ctx.Repo.BranchNameSubURL()
rctx := renderhelper.NewRenderContextRepoFile(ctx, ctx.Repo.Repository, renderhelper.RepoFileOptions{
CurrentRefPath: ctx.Repo.BranchNameSubURL(),
CurrentTreePath: path.Dir(ctx.Repo.TreePath),
}).
WithMarkupType(markupType).
WithRelativePath(ctx.Repo.TreePath).
WithMetas(metas)
ctx.Data["EscapeStatus"], ctx.Data["FileContent"], err = markupRender(ctx, rctx, rd)
if err != nil {
ctx.ServerError("Render", err)
return
}
// to prevent iframe load third-party url
ctx.Resp.Header().Add("Content-Security-Policy", "frame-src 'self'")
} else {
buf, _ := io.ReadAll(rd)
// The Open Group Base Specification: https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html
// empty: 0 lines; "a": 1 incomplete-line; "a\n": 1 line; "a\nb": 1 line, 1 incomplete-line;
// Gitea uses the definition (like most modern editors):
// empty: 0 lines; "a": 1 line; "a\n": 2 lines; "a\nb": 2 lines;
// When rendering, the last empty line is not rendered in UI, while the line-number is still counted, to tell users that the file contains a trailing EOL.
// To make the UI more consistent, it could use an icon mark to indicate that there is no trailing EOL, and show line-number as the rendered lines.
// This NumLines is only used for the display on the UI: "xxx lines"
if len(buf) == 0 {
ctx.Data["NumLines"] = 0
} else {
ctx.Data["NumLines"] = bytes.Count(buf, []byte{'\n'}) + 1
}
language, err := files_service.TryGetContentLanguage(ctx.Repo.GitRepo, ctx.Repo.CommitID, ctx.Repo.TreePath)
if err != nil {
log.Error("Unable to get file language for %-v:%s. Error: %v", ctx.Repo.Repository, ctx.Repo.TreePath, err)
}
fileContent, lexerName, err := highlight.File(blob.Name(), language, buf)
ctx.Data["LexerName"] = lexerName
if err != nil {
log.Error("highlight.File failed, fallback to plain text: %v", err)
fileContent = highlight.PlainText(buf)
}
status := &charset.EscapeStatus{}
statuses := make([]*charset.EscapeStatus, len(fileContent))
for i, line := range fileContent {
statuses[i], fileContent[i] = charset.EscapeControlHTML(line, ctx.Locale)
status = status.Or(statuses[i])
}
ctx.Data["EscapeStatus"] = status
ctx.Data["FileContent"] = fileContent
ctx.Data["LineEscapeStatus"] = statuses
}
if !fInfo.isLFSFile {
if ctx.Repo.CanEnableEditor(ctx, ctx.Doer) {
if lfsLock != nil && lfsLock.OwnerID != ctx.Doer.ID {
ctx.Data["CanEditFile"] = false
ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.this_file_locked")
} else {
ctx.Data["CanEditFile"] = true
ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.edit_this_file")
}
} else if !ctx.Repo.IsViewBranch {
ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.must_be_on_a_branch")
} else if !ctx.Repo.CanWriteToBranch(ctx, ctx.Doer, ctx.Repo.BranchName) {
ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.fork_before_edit")
}
}
case fInfo.st.IsPDF():
ctx.Data["IsPDFFile"] = true
case fInfo.st.IsVideo():
ctx.Data["IsVideoFile"] = true
case fInfo.st.IsAudio():
ctx.Data["IsAudioFile"] = true
case fInfo.st.IsImage() && (setting.UI.SVG.Enabled || !fInfo.st.IsSvgImage()):
ctx.Data["IsImageFile"] = true
ctx.Data["CanCopyContent"] = true
default:
if fInfo.fileSize >= setting.UI.MaxDisplayFileSize {
ctx.Data["IsFileTooLarge"] = true
break
}
// TODO: this logic duplicates with "isRepresentableAsText=true", it is not the same as "LFSFileGet" in "lfs.go"
// It is used by "external renders", markupRender will execute external programs to get rendered content.
if markupType := markup.DetectMarkupTypeByFileName(blob.Name()); markupType != "" {
rd := io.MultiReader(bytes.NewReader(buf), dataRc)
ctx.Data["IsMarkup"] = true
ctx.Data["MarkupType"] = markupType
rctx := renderhelper.NewRenderContextRepoFile(ctx, ctx.Repo.Repository, renderhelper.RepoFileOptions{
CurrentRefPath: ctx.Repo.BranchNameSubURL(),
CurrentTreePath: path.Dir(ctx.Repo.TreePath),
}).
WithMarkupType(markupType).
WithRelativePath(ctx.Repo.TreePath)
ctx.Data["EscapeStatus"], ctx.Data["FileContent"], err = markupRender(ctx, rctx, rd)
if err != nil {
ctx.ServerError("Render", err)
return
}
}
}
if ctx.Repo.GitRepo != nil {
checker, deferable := ctx.Repo.GitRepo.CheckAttributeReader(ctx.Repo.CommitID)
if checker != nil {
defer deferable()
attrs, err := checker.CheckPath(ctx.Repo.TreePath)
if err == nil {
ctx.Data["IsVendored"] = git.AttributeToBool(attrs, git.AttributeLinguistVendored).Value()
ctx.Data["IsGenerated"] = git.AttributeToBool(attrs, git.AttributeLinguistGenerated).Value()
}
}
}
if fInfo.st.IsImage() && !fInfo.st.IsSvgImage() {
img, _, err := image.DecodeConfig(bytes.NewReader(buf))
if err == nil {
// There are Image formats go can't decode
// Instead of throwing an error in that case, we show the size only when we can decode
ctx.Data["ImageSize"] = fmt.Sprintf("%dx%dpx", img.Width, img.Height)
}
}
if ctx.Repo.CanEnableEditor(ctx, ctx.Doer) {
if lfsLock != nil && lfsLock.OwnerID != ctx.Doer.ID {
ctx.Data["CanDeleteFile"] = false
ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.this_file_locked")
} else {
ctx.Data["CanDeleteFile"] = true
ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.delete_this_file")
}
} else if !ctx.Repo.IsViewBranch {
ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.must_be_on_a_branch")
} else if !ctx.Repo.CanWriteToBranch(ctx, ctx.Doer, ctx.Repo.BranchName) {
ctx.Data["DeleteFileTooltip"] = ctx.Tr("repo.editor.must_have_write_access")
}
}