diff --git a/gogs.go b/gogs.go
index a5825b38f..97a278992 100644
--- a/gogs.go
+++ b/gogs.go
@@ -17,7 +17,7 @@ import (
 	"github.com/gogits/gogs/modules/setting"
 )
 
-const APP_VER = "0.9.94.0829"
+const APP_VER = "0.9.94.0830"
 
 func init() {
 	runtime.GOMAXPROCS(runtime.NumCPU())
diff --git a/modules/base/tool.go b/modules/base/tool.go
index cf8fece02..e321d2b86 100644
--- a/modules/base/tool.go
+++ b/modules/base/tool.go
@@ -518,26 +518,14 @@ func IsLetter(ch rune) bool {
 	return 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' || ch == '_' || ch >= 0x80 && unicode.IsLetter(ch)
 }
 
-func IsTextFile(data []byte) (string, bool) {
-	contentType := http.DetectContentType(data)
-	if strings.Index(contentType, "text/") != -1 {
-		return contentType, true
-	}
-	return contentType, false
+func IsTextFile(data []byte) bool {
+	return strings.Index(http.DetectContentType(data), "text/") != -1
 }
 
-func IsImageFile(data []byte) (string, bool) {
-	contentType := http.DetectContentType(data)
-	if strings.Index(contentType, "image/") != -1 {
-		return contentType, true
-	}
-	return contentType, false
+func IsImageFile(data []byte) bool {
+	return strings.Index(http.DetectContentType(data), "image/") != -1
 }
 
-func IsPDFFile(data []byte) (string, bool) {
-	contentType := http.DetectContentType(data)
-	if strings.Index(contentType, "application/pdf") != -1 {
-		return contentType, true
-	}
-	return contentType, false
+func IsPDFFile(data []byte) bool {
+	return strings.Index(http.DetectContentType(data), "application/pdf") != -1
 }
diff --git a/modules/context/context.go b/modules/context/context.go
index 971d075d0..ac46bb38f 100644
--- a/modules/context/context.go
+++ b/modules/context/context.go
@@ -105,13 +105,12 @@ func (ctx *Context) Handle(status int, title string, err error) {
 	ctx.HTML(status, base.TplName(fmt.Sprintf("status/%d", status)))
 }
 
-// HandleError use error check function to determine if server should
-// response as client input error or server internal error.
-// It responses with given status code for client error,
-// or error context description for logging purpose of server error.
-func (ctx *Context) HandleError(title string, errck func(error) bool, err error, status int) {
+// NotFoundOrServerError use error check function to determine if the error
+// is about not found. It responses with 404 status code for not found error,
+// or error context description for logging purpose of 500 server error.
+func (ctx *Context) NotFoundOrServerError(title string, errck func(error) bool, err error) {
 	if errck(err) {
-		ctx.Error(status, err.Error())
+		ctx.Handle(404, title, err)
 		return
 	}
 
diff --git a/modules/context/repo.go b/modules/context/repo.go
index f5f26b1e5..d72e64e42 100644
--- a/modules/context/repo.go
+++ b/modules/context/repo.go
@@ -48,7 +48,7 @@ type Repository struct {
 	CommitsCount int64
 	Mirror       *models.Mirror
 
-	PullRequest  *PullRequest
+	PullRequest *PullRequest
 }
 
 // IsOwner returns true if current user is the owner of repository.
@@ -71,6 +71,11 @@ func (r *Repository) HasAccess() bool {
 	return r.AccessMode >= models.ACCESS_MODE_READ
 }
 
+// CanEnableEditor returns true if repository is editable and user has proper access level.
+func (r *Repository) CanEnableEditor() bool {
+	return r.Repository.CanEnableEditor() && r.IsViewBranch && r.IsWriter()
+}
+
 // GetEditorconfig returns the .editorconfig definition if found in the
 // HEAD of the default repo branch.
 func (r *Repository) GetEditorconfig() (*editorconfig.Editorconfig, error) {
@@ -167,6 +172,7 @@ func RepoAssignment(args ...bool) macaron.Handler {
 			}
 		}
 		ctx.Repo.Owner = owner
+		ctx.Data["Username"] = ctx.Repo.Owner.Name
 
 		// Get repository.
 		repo, err := models.GetRepositoryByName(owner.ID, repoName)
@@ -221,6 +227,7 @@ func RepoAssignment(args ...bool) macaron.Handler {
 		}
 
 		ctx.Repo.Repository = repo
+		ctx.Data["RepoName"] = ctx.Repo.Repository.Name
 		ctx.Data["IsBareRepo"] = ctx.Repo.Repository.IsBare
 
 		gitRepo, err := git.OpenRepository(models.RepoPath(userName, repoName))
@@ -348,12 +355,11 @@ func RepoRef() macaron.Handler {
 		// For API calls.
 		if ctx.Repo.GitRepo == nil {
 			repoPath := models.RepoPath(ctx.Repo.Owner.Name, ctx.Repo.Repository.Name)
-			gitRepo, err := git.OpenRepository(repoPath)
+			ctx.Repo.GitRepo, err = git.OpenRepository(repoPath)
 			if err != nil {
 				ctx.Handle(500, "RepoRef Invalid repo "+repoPath, err)
 				return
 			}
-			ctx.Repo.GitRepo = gitRepo
 		}
 
 		// Get default branch.
@@ -431,6 +437,7 @@ func RepoRef() macaron.Handler {
 		ctx.Repo.BranchName = refName
 		ctx.Data["BranchName"] = ctx.Repo.BranchName
 		ctx.Data["CommitID"] = ctx.Repo.CommitID
+		ctx.Data["TreePath"] = ctx.Repo.TreePath
 		ctx.Data["IsViewBranch"] = ctx.Repo.IsViewBranch
 		ctx.Data["IsViewTag"] = ctx.Repo.IsViewTag
 		ctx.Data["IsViewCommit"] = ctx.Repo.IsViewCommit
diff --git a/routers/repo/download.go b/routers/repo/download.go
index 85aa76472..faa30ac9d 100644
--- a/routers/repo/download.go
+++ b/routers/repo/download.go
@@ -21,10 +21,8 @@ func ServeData(ctx *context.Context, name string, reader io.Reader) error {
 		buf = buf[:n]
 	}
 
-	_, isTextFile := base.IsTextFile(buf)
-	if !isTextFile {
-		_, isImageFile := base.IsImageFile(buf)
-		if !isImageFile {
+	if !base.IsTextFile(buf) {
+		if !base.IsImageFile(buf) {
 			ctx.Resp.Header().Set("Content-Disposition", "attachment; filename=\""+path.Base(ctx.Repo.TreePath)+"\"")
 			ctx.Resp.Header().Set("Content-Transfer-Encoding", "binary")
 		}
diff --git a/routers/repo/editor.go b/routers/repo/editor.go
index 81f95956a..465de0021 100644
--- a/routers/repo/editor.go
+++ b/routers/repo/editor.go
@@ -72,8 +72,7 @@ func editFile(ctx *context.Context, isNewFile bool) {
 		}
 
 		// Only text file are editable online.
-		_, isTextFile := base.IsTextFile(buf)
-		if !isTextFile {
+		if !base.IsTextFile(buf) {
 			ctx.Handle(404, "", nil)
 			return
 		}
diff --git a/routers/repo/issue.go b/routers/repo/issue.go
index 24fecaf41..a5908c182 100644
--- a/routers/repo/issue.go
+++ b/routers/repo/issue.go
@@ -795,7 +795,7 @@ func UpdateIssueAssignee(ctx *context.Context) {
 func NewComment(ctx *context.Context, form auth.CreateCommentForm) {
 	issue, err := models.GetIssueByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
 	if err != nil {
-		ctx.HandleError("GetIssueByIndex", models.IsErrIssueNotExist, err, 404)
+		ctx.NotFoundOrServerError("GetIssueByIndex", models.IsErrIssueNotExist, err)
 		return
 	}
 
@@ -881,7 +881,7 @@ func NewComment(ctx *context.Context, form auth.CreateCommentForm) {
 func UpdateCommentContent(ctx *context.Context) {
 	comment, err := models.GetCommentByID(ctx.ParamsInt64(":id"))
 	if err != nil {
-		ctx.HandleError("GetCommentByID", models.IsErrCommentNotExist, err, 404)
+		ctx.NotFoundOrServerError("GetCommentByID", models.IsErrCommentNotExist, err)
 		return
 	}
 
@@ -913,7 +913,7 @@ func UpdateCommentContent(ctx *context.Context) {
 func DeleteComment(ctx *context.Context) {
 	comment, err := models.GetCommentByID(ctx.ParamsInt64(":id"))
 	if err != nil {
-		ctx.HandleError("GetCommentByID", models.IsErrCommentNotExist, err, 404)
+		ctx.NotFoundOrServerError("GetCommentByID", models.IsErrCommentNotExist, err)
 		return
 	}
 
diff --git a/routers/repo/view.go b/routers/repo/view.go
index 50b158467..42bf62c60 100644
--- a/routers/repo/view.go
+++ b/routers/repo/view.go
@@ -32,6 +32,192 @@ const (
 	FORKS    base.TplName = "repo/forks"
 )
 
+func renderDirectory(ctx *context.Context, treeLink string) {
+	tree, err := ctx.Repo.Commit.SubTree(ctx.Repo.TreePath)
+	if err != nil {
+		ctx.NotFoundOrServerError("Repo.Commit.SubTree", git.IsErrNotExist, err)
+		return
+	}
+
+	entries, err := tree.ListEntries()
+	if err != nil {
+		ctx.Handle(500, "ListEntries", err)
+		return
+	}
+	entries.Sort()
+
+	ctx.Data["Files"], err = entries.GetCommitsInfo(ctx.Repo.Commit, ctx.Repo.TreePath)
+	if err != nil {
+		ctx.Handle(500, "GetCommitsInfo", err)
+		return
+	}
+
+	var readmeFile *git.Blob
+	for _, entry := range entries {
+		if entry.IsDir() || !markdown.IsReadmeFile(entry.Name()) {
+			continue
+		}
+
+		// TODO: collect all possible README files and show with priority.
+		readmeFile = entry.Blob()
+		break
+	}
+
+	if readmeFile != nil {
+		ctx.Data["ReadmeInList"] = true
+		ctx.Data["ReadmeExist"] = true
+
+		dataRc, err := readmeFile.Data()
+		if err != nil {
+			ctx.Handle(500, "Data", err)
+			return
+		}
+
+		buf := make([]byte, 1024)
+		n, _ := dataRc.Read(buf)
+		if n > 0 {
+			buf = buf[:n]
+		}
+
+		isTextFile := base.IsTextFile(buf)
+		ctx.Data["FileIsText"] = isTextFile
+		ctx.Data["FileName"] = readmeFile.Name()
+		// FIXME: what happens when README file is an image?
+		if isTextFile {
+			d, _ := ioutil.ReadAll(dataRc)
+			buf = append(buf, d...)
+			switch {
+			case markdown.IsMarkdownFile(readmeFile.Name()):
+				ctx.Data["IsMarkdown"] = true
+				buf = markdown.Render(buf, treeLink, ctx.Repo.Repository.ComposeMetas())
+			default:
+				buf = bytes.Replace(buf, []byte("\n"), []byte(`
`), -1)
+			}
+			ctx.Data["FileContent"] = string(buf)
+		}
+	}
+
+	// Show latest commit info of repository in table header,
+	// or of directory if not in root directory.
+	latestCommit := ctx.Repo.Commit
+	if len(ctx.Repo.TreePath) > 0 {
+		latestCommit, err = ctx.Repo.Commit.GetCommitByPath(ctx.Repo.TreePath)
+		if err != nil {
+			ctx.Handle(500, "GetCommitByPath", err)
+			return
+		}
+	}
+	ctx.Data["LatestCommit"] = latestCommit
+	ctx.Data["LatestCommitUser"] = models.ValidateCommitWithEmail(latestCommit)
+
+	// Check permission to add or upload new file.
+	if ctx.Repo.IsWriter() && ctx.Repo.IsViewBranch {
+		ctx.Data["CanAddFile"] = true
+		// uploadFileLink := ctx.Repo.RepoLink + "/upload/" + branchName
+		// if setting.Repository.Upload.Enabled {
+		// 	ctx.Data["UploadFileLink"] = uploadFileLink + "/" +  ctx.Repo.TreePath
+		// }
+	}
+}
+
+func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink string) {
+	ctx.Data["IsViewFile"] = true
+
+	blob := entry.Blob()
+	dataRc, err := blob.Data()
+	if err != nil {
+		ctx.Handle(500, "Data", err)
+		return
+	}
+
+	ctx.Data["FileSize"] = blob.Size()
+	ctx.Data["FileName"] = blob.Name()
+	ctx.Data["HighlightClass"] = highlight.FileNameToHighlightClass(blob.Name())
+	ctx.Data["RawFileLink"] = rawLink + "/" + ctx.Repo.TreePath
+
+	buf := make([]byte, 1024)
+	n, _ := dataRc.Read(buf)
+	if n > 0 {
+		buf = buf[:n]
+	}
+
+	isTextFile := base.IsTextFile(buf)
+	ctx.Data["IsTextFile"] = isTextFile
+
+	// Assume file is not editable first.
+	if !isTextFile {
+		ctx.Data["EditFileTooltip"] = ctx.Tr("repo.editor.cannot_edit_non_text_files")
+	}
+
+	switch {
+	case isTextFile:
+		if blob.Size() >= setting.UI.MaxDisplayFileSize {
+			ctx.Data["IsFileTooLarge"] = true
+			break
+		}
+
+		d, _ := ioutil.ReadAll(dataRc)
+		buf = append(buf, d...)
+
+		isMarkdown := markdown.IsMarkdownFile(blob.Name())
+		ctx.Data["IsMarkdown"] = isMarkdown
+
+		readmeExist := isMarkdown || markdown.IsReadmeFile(blob.Name())
+		ctx.Data["ReadmeExist"] = readmeExist
+		if readmeExist {
+			// TODO: don't need to render if it's a README but not Markdown file.
+			ctx.Data["FileContent"] = string(markdown.Render(buf, path.Dir(treeLink), ctx.Repo.Repository.ComposeMetas()))
+		} else {
+			// Building code view blocks with line number on server side.
+			var fileContent string
+			if err, content := template.ToUTF8WithErr(buf); err != nil {
+				if err != nil {
+					log.Error(4, "ToUTF8WithErr: %s", err)
+				}
+				fileContent = string(buf)
+			} else {
+				fileContent = content
+			}
+
+			var output bytes.Buffer
+			lines := strings.Split(fileContent, "\n")
+			for index, line := range lines {
+				output.WriteString(fmt.Sprintf(`