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// Copyright 2016 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package repo
import (
"fmt"
"io/ioutil"
"net/http"
"path"
"strings"
log "gopkg.in/clog.v1"
"github.com/gogs/git-module"
"github.com/gogs/gogs/models"
"github.com/gogs/gogs/pkg/context"
"github.com/gogs/gogs/pkg/form"
"github.com/gogs/gogs/pkg/setting"
"github.com/gogs/gogs/pkg/template"
"github.com/gogs/gogs/pkg/tool"
)
const (
EDIT_FILE = "repo/editor/edit"
EDIT_DIFF_PREVIEW = "repo/editor/diff_preview"
DELETE_FILE = "repo/editor/delete"
UPLOAD_FILE = "repo/editor/upload"
)
// getParentTreeFields returns list of parent tree names and corresponding tree paths
// based on given tree path.
func getParentTreeFields(treePath string) (treeNames []string, treePaths []string) {
if len(treePath) == 0 {
return treeNames, treePaths
}
treeNames = strings.Split(treePath, "/")
treePaths = make([]string, len(treeNames))
for i := range treeNames {
treePaths[i] = strings.Join(treeNames[:i+1], "/")
}
return treeNames, treePaths
}
func editFile(c *context.Context, isNewFile bool) {
c.PageIs("Edit")
c.RequireHighlightJS()
c.RequireSimpleMDE()
c.Data["IsNewFile"] = isNewFile
treeNames, treePaths := getParentTreeFields(c.Repo.TreePath)
if !isNewFile {
entry, err := c.Repo.Commit.GetTreeEntryByPath(c.Repo.TreePath)
if err != nil {
c.NotFoundOrServerError("GetTreeEntryByPath", git.IsErrNotExist, err)
return
}
// No way to edit a directory online.
if entry.IsDir() {
c.NotFound()
return
}
blob := entry.Blob()
dataRc, err := blob.Data()
if err != nil {
c.ServerError("blob.Data", err)
return
}
c.Data["FileSize"] = blob.Size()
c.Data["FileName"] = blob.Name()
buf := make([]byte, 1024)
n, _ := dataRc.Read(buf)
buf = buf[:n]
// Only text file are editable online.
if !tool.IsTextFile(buf) {
c.NotFound()
return
}
d, _ := ioutil.ReadAll(dataRc)
buf = append(buf, d...)
if err, content := template.ToUTF8WithErr(buf); err != nil {
if err != nil {
log.Error(2, "Failed to convert encoding to UTF-8: %v", err)
}
c.Data["FileContent"] = string(buf)
} else {
c.Data["FileContent"] = content
}
} else {
treeNames = append(treeNames, "") // Append empty string to allow user name the new file.
}
c.Data["ParentTreePath"] = path.Dir(c.Repo.TreePath)
c.Data["TreeNames"] = treeNames
c.Data["TreePaths"] = treePaths
c.Data["BranchLink"] = c.Repo.RepoLink + "/src/" + c.Repo.BranchName
c.Data["commit_summary"] = ""
c.Data["commit_message"] = ""
c.Data["commit_choice"] = "direct"
c.Data["new_branch_name"] = ""
c.Data["last_commit"] = c.Repo.Commit.ID
c.Data["MarkdownFileExts"] = strings.Join(setting.Markdown.FileExtensions, ",")
c.Data["LineWrapExtensions"] = strings.Join(setting.Repository.Editor.LineWrapExtensions, ",")
c.Data["PreviewableFileModes"] = strings.Join(setting.Repository.Editor.PreviewableFileModes, ",")
c.Data["EditorconfigURLPrefix"] = fmt.Sprintf("%s/api/v1/repos/%s/editorconfig/", setting.AppSubURL, c.Repo.Repository.FullName())
c.Success(EDIT_FILE)
}
func EditFile(c *context.Context) {
editFile(c, false)
}
func NewFile(c *context.Context) {
editFile(c, true)
}
func editFilePost(c *context.Context, f form.EditRepoFile, isNewFile bool) {
c.PageIs("Edit")
c.RequireHighlightJS()
c.RequireSimpleMDE()
c.Data["IsNewFile"] = isNewFile
oldBranchName := c.Repo.BranchName
branchName := oldBranchName
oldTreePath := c.Repo.TreePath
lastCommit := f.LastCommit
f.LastCommit = c.Repo.Commit.ID.String()
if f.IsNewBrnach() {
branchName = f.NewBranchName
}
f.TreePath = strings.Trim(path.Clean("/"+f.TreePath), " /")
treeNames, treePaths := getParentTreeFields(f.TreePath)
c.Data["ParentTreePath"] = path.Dir(c.Repo.TreePath)
c.Data["TreePath"] = f.TreePath
c.Data["TreeNames"] = treeNames
c.Data["TreePaths"] = treePaths
c.Data["BranchLink"] = c.Repo.RepoLink + "/src/" + branchName
c.Data["FileContent"] = f.Content
c.Data["commit_summary"] = f.CommitSummary
c.Data["commit_message"] = f.CommitMessage
c.Data["commit_choice"] = f.CommitChoice
c.Data["new_branch_name"] = branchName
c.Data["last_commit"] = f.LastCommit
c.Data["MarkdownFileExts"] = strings.Join(setting.Markdown.FileExtensions, ",")
c.Data["LineWrapExtensions"] = strings.Join(setting.Repository.Editor.LineWrapExtensions, ",")
c.Data["PreviewableFileModes"] = strings.Join(setting.Repository.Editor.PreviewableFileModes, ",")
if c.HasError() {
c.Success(EDIT_FILE)
return
}
if len(f.TreePath) == 0 {
c.FormErr("TreePath")
c.RenderWithErr(c.Tr("repo.editor.filename_cannot_be_empty"), EDIT_FILE, &f)
return
}
if oldBranchName != branchName {
if _, err := c.Repo.Repository.GetBranch(branchName); err == nil {
c.FormErr("NewBranchName")
c.RenderWithErr(c.Tr("repo.editor.branch_already_exists", branchName), EDIT_FILE, &f)
return
}
}
var newTreePath string
for index, part := range treeNames {
newTreePath = path.Join(newTreePath, part)
entry, err := c.Repo.Commit.GetTreeEntryByPath(newTreePath)
if err != nil {
if git.IsErrNotExist(err) {
// Means there is no item with that name, so we're good
break
}
c.ServerError("Repo.Commit.GetTreeEntryByPath", err)
return
}
if index != len(treeNames)-1 {
if !entry.IsDir() {
c.FormErr("TreePath")
c.RenderWithErr(c.Tr("repo.editor.directory_is_a_file", part), EDIT_FILE, &f)
return
}
} else {
if entry.IsLink() {
c.FormErr("TreePath")
c.RenderWithErr(c.Tr("repo.editor.file_is_a_symlink", part), EDIT_FILE, &f)
return
} else if entry.IsDir() {
c.FormErr("TreePath")
c.RenderWithErr(c.Tr("repo.editor.filename_is_a_directory", part), EDIT_FILE, &f)
return
}
}
}
if !isNewFile {
_, err := c.Repo.Commit.GetTreeEntryByPath(oldTreePath)
if err != nil {
if git.IsErrNotExist(err) {
c.FormErr("TreePath")
c.RenderWithErr(c.Tr("repo.editor.file_editing_no_longer_exists", oldTreePath), EDIT_FILE, &f)
} else {
c.ServerError("GetTreeEntryByPath", err)
}
return
}
if lastCommit != c.Repo.CommitID {
files, err := c.Repo.Commit.GetFilesChangedSinceCommit(lastCommit)
if err != nil {
c.ServerError("GetFilesChangedSinceCommit", err)
return
}
for _, file := range files {
if file == f.TreePath {
c.RenderWithErr(c.Tr("repo.editor.file_changed_while_editing", c.Repo.RepoLink+"/compare/"+lastCommit+"..."+c.Repo.CommitID), EDIT_FILE, &f)
return
}
}
}
}
if oldTreePath != f.TreePath {
// We have a new filename (rename or completely new file) so we need to make sure it doesn't already exist, can't clobber.
entry, err := c.Repo.Commit.GetTreeEntryByPath(f.TreePath)
if err != nil {
if !git.IsErrNotExist(err) {
c.ServerError("GetTreeEntryByPath", err)
return
}
}
if entry != nil {
c.FormErr("TreePath")
c.RenderWithErr(c.Tr("repo.editor.file_already_exists", f.TreePath), EDIT_FILE, &f)
return
}
}
message := strings.TrimSpace(f.CommitSummary)
if len(message) == 0 {
if isNewFile {
message = c.Tr("repo.editor.add", f.TreePath)
} else {
message = c.Tr("repo.editor.update", f.TreePath)
}
}
f.CommitMessage = strings.TrimSpace(f.CommitMessage)
if len(f.CommitMessage) > 0 {
message += "\n\n" + f.CommitMessage
}
if err := c.Repo.Repository.UpdateRepoFile(c.User, models.UpdateRepoFileOptions{
LastCommitID: lastCommit,
OldBranch: oldBranchName,
NewBranch: branchName,
OldTreeName: oldTreePath,
NewTreeName: f.TreePath,
Message: message,
Content: strings.Replace(f.Content, "\r", "", -1),
IsNewFile: isNewFile,
}); err != nil {
c.FormErr("TreePath")
c.RenderWithErr(c.Tr("repo.editor.fail_to_update_file", f.TreePath, err), EDIT_FILE, &f)
return
}
if f.IsNewBrnach() && c.Repo.PullRequest.Allowed {
c.Redirect(c.Repo.PullRequestURL(oldBranchName, f.NewBranchName))
} else {
c.Redirect(c.Repo.RepoLink + "/src/" + branchName + "/" + template.EscapePound(f.TreePath))
}
}
func EditFilePost(c *context.Context, f form.EditRepoFile) {
editFilePost(c, f, false)
}
func NewFilePost(c *context.Context, f form.EditRepoFile) {
editFilePost(c, f, true)
}
func DiffPreviewPost(c *context.Context, f form.EditPreviewDiff) {
treePath := c.Repo.TreePath
entry, err := c.Repo.Commit.GetTreeEntryByPath(treePath)
if err != nil {
c.Error(500, "GetTreeEntryByPath: "+err.Error())
return
} else if entry.IsDir() {
c.Error(422)
return
}
diff, err := c.Repo.Repository.GetDiffPreview(c.Repo.BranchName, treePath, f.Content)
if err != nil {
c.Error(500, "GetDiffPreview: "+err.Error())
return
}
if diff.NumFiles() == 0 {
c.PlainText(200, []byte(c.Tr("repo.editor.no_changes_to_show")))
return
}
c.Data["File"] = diff.Files[0]
c.HTML(200, EDIT_DIFF_PREVIEW)
}
func DeleteFile(c *context.Context) {
c.PageIs("Delete")
c.Data["BranchLink"] = c.Repo.RepoLink + "/src/" + c.Repo.BranchName
c.Data["TreePath"] = c.Repo.TreePath
c.Data["commit_summary"] = ""
c.Data["commit_message"] = ""
c.Data["commit_choice"] = "direct"
c.Data["new_branch_name"] = ""
c.Success(DELETE_FILE)
}
func DeleteFilePost(c *context.Context, f form.DeleteRepoFile) {
c.PageIs("Delete")
c.Data["BranchLink"] = c.Repo.RepoLink + "/src/" + c.Repo.BranchName
c.Data["TreePath"] = c.Repo.TreePath
oldBranchName := c.Repo.BranchName
branchName := oldBranchName
if f.IsNewBrnach() {
branchName = f.NewBranchName
}
c.Data["commit_summary"] = f.CommitSummary
c.Data["commit_message"] = f.CommitMessage
c.Data["commit_choice"] = f.CommitChoice
c.Data["new_branch_name"] = branchName
if c.HasError() {
c.Success(DELETE_FILE)
return
}
if oldBranchName != branchName {
if _, err := c.Repo.Repository.GetBranch(branchName); err == nil {
c.FormErr("NewBranchName")
c.RenderWithErr(c.Tr("repo.editor.branch_already_exists", branchName), DELETE_FILE, &f)
return
}
}
message := strings.TrimSpace(f.CommitSummary)
if len(message) == 0 {
message = c.Tr("repo.editor.delete", c.Repo.TreePath)
}
f.CommitMessage = strings.TrimSpace(f.CommitMessage)
if len(f.CommitMessage) > 0 {
message += "\n\n" + f.CommitMessage
}
if err := c.Repo.Repository.DeleteRepoFile(c.User, models.DeleteRepoFileOptions{
LastCommitID: c.Repo.CommitID,
OldBranch: oldBranchName,
NewBranch: branchName,
TreePath: c.Repo.TreePath,
Message: message,
}); err != nil {
c.ServerError("DeleteRepoFile", err)
return
}
if f.IsNewBrnach() && c.Repo.PullRequest.Allowed {
c.Redirect(c.Repo.PullRequestURL(oldBranchName, f.NewBranchName))
} else {
c.Flash.Success(c.Tr("repo.editor.file_delete_success", c.Repo.TreePath))
c.Redirect(c.Repo.RepoLink + "/src/" + branchName)
}
}
func renderUploadSettings(c *context.Context) {
c.RequireDropzone()
c.Data["UploadAllowedTypes"] = strings.Join(setting.Repository.Upload.AllowedTypes, ",")
c.Data["UploadMaxSize"] = setting.Repository.Upload.FileMaxSize
c.Data["UploadMaxFiles"] = setting.Repository.Upload.MaxFiles
}
func UploadFile(c *context.Context) {
c.PageIs("Upload")
renderUploadSettings(c)
treeNames, treePaths := getParentTreeFields(c.Repo.TreePath)
if len(treeNames) == 0 {
// We must at least have one element for user to input.
treeNames = []string{""}
}
c.Data["TreeNames"] = treeNames
c.Data["TreePaths"] = treePaths
c.Data["BranchLink"] = c.Repo.RepoLink + "/src/" + c.Repo.BranchName
c.Data["commit_summary"] = ""
c.Data["commit_message"] = ""
c.Data["commit_choice"] = "direct"
c.Data["new_branch_name"] = ""
c.Success(UPLOAD_FILE)
}
func UploadFilePost(c *context.Context, f form.UploadRepoFile) {
c.PageIs("Upload")
renderUploadSettings(c)
oldBranchName := c.Repo.BranchName
branchName := oldBranchName
if f.IsNewBrnach() {
branchName = f.NewBranchName
}
f.TreePath = strings.Trim(path.Clean("/"+f.TreePath), " /")
treeNames, treePaths := getParentTreeFields(f.TreePath)
if len(treeNames) == 0 {
// We must at least have one element for user to input.
treeNames = []string{""}
}
c.Data["TreePath"] = f.TreePath
c.Data["TreeNames"] = treeNames
c.Data["TreePaths"] = treePaths
c.Data["BranchLink"] = c.Repo.RepoLink + "/src/" + branchName
c.Data["commit_summary"] = f.CommitSummary
c.Data["commit_message"] = f.CommitMessage
c.Data["commit_choice"] = f.CommitChoice
c.Data["new_branch_name"] = branchName
if c.HasError() {
c.Success(UPLOAD_FILE)
return
}
if oldBranchName != branchName {
if _, err := c.Repo.Repository.GetBranch(branchName); err == nil {
c.FormErr("NewBranchName")
c.RenderWithErr(c.Tr("repo.editor.branch_already_exists", branchName), UPLOAD_FILE, &f)
return
}
}
var newTreePath string
for _, part := range treeNames {
newTreePath = path.Join(newTreePath, part)
entry, err := c.Repo.Commit.GetTreeEntryByPath(newTreePath)
if err != nil {
if git.IsErrNotExist(err) {
// Means there is no item with that name, so we're good
break
}
c.ServerError("GetTreeEntryByPath", err)
return
}
// User can only upload files to a directory.
if !entry.IsDir() {
c.FormErr("TreePath")
c.RenderWithErr(c.Tr("repo.editor.directory_is_a_file", part), UPLOAD_FILE, &f)
return
}
}
message := strings.TrimSpace(f.CommitSummary)
if len(message) == 0 {
message = c.Tr("repo.editor.upload_files_to_dir", f.TreePath)
}
f.CommitMessage = strings.TrimSpace(f.CommitMessage)
if len(f.CommitMessage) > 0 {
message += "\n\n" + f.CommitMessage
}
if err := c.Repo.Repository.UploadRepoFiles(c.User, models.UploadRepoFileOptions{
LastCommitID: c.Repo.CommitID,
OldBranch: oldBranchName,
NewBranch: branchName,
TreePath: f.TreePath,
Message: message,
Files: f.Files,
}); err != nil {
c.FormErr("TreePath")
c.RenderWithErr(c.Tr("repo.editor.unable_to_upload_files", f.TreePath, err), UPLOAD_FILE, &f)
return
}
if f.IsNewBrnach() && c.Repo.PullRequest.Allowed {
c.Redirect(c.Repo.PullRequestURL(oldBranchName, f.NewBranchName))
} else {
c.Redirect(c.Repo.RepoLink + "/src/" + branchName + "/" + f.TreePath)
}
}
func UploadFileToServer(c *context.Context) {
file, header, err := c.Req.FormFile("file")
if err != nil {
c.Error(500, fmt.Sprintf("FormFile: %v", err))
return
}
defer file.Close()
buf := make([]byte, 1024)
n, _ := file.Read(buf)
if n > 0 {
buf = buf[:n]
}
fileType := http.DetectContentType(buf)
if len(setting.Repository.Upload.AllowedTypes) > 0 {
allowed := false
for _, t := range setting.Repository.Upload.AllowedTypes {
t := strings.Trim(t, " ")
if t == "*/*" || t == fileType {
allowed = true
break
}
}
if !allowed {
c.Error(400, ErrFileTypeForbidden.Error())
return
}
}
upload, err := models.NewUpload(header.Filename, buf, file)
if err != nil {
c.Error(500, fmt.Sprintf("NewUpload: %v", err))
return
}
log.Trace("New file uploaded: %s", upload.UUID)
c.JSON(200, map[string]string{
"uuid": upload.UUID,
})
}
func RemoveUploadFileFromServer(c *context.Context, f form.RemoveUploadFile) {
if len(f.File) == 0 {
c.Status(204)
return
}
if err := models.DeleteUploadByUUID(f.File); err != nil {
c.Error(500, fmt.Sprintf("DeleteUploadByUUID: %v", err))
return
}
log.Trace("Upload file removed: %s", f.File)
c.Status(204)
}