Do not allow commiting to protected branch from online editor (#1502)

* Do not allow commiting to protected branch from online editor

* Add editor integration tests for adding new file and not allowing to add new file to protected branch

Makefile

@@ -86,15 +86,15 @@ test-vendor:
 
 .PHONY: test-sqlite
 test-sqlite: integrations.test
-	GITEA_CONF=integrations/sqlite.ini ./integrations.test
+	GITEA_ROOT=${CURDIR} GITEA_CONF=integrations/sqlite.ini ./integrations.test
 
 .PHONY: test-mysql
 test-mysql: integrations.test
-	GITEA_CONF=integrations/mysql.ini ./integrations.test
+	GITEA_ROOT=${CURDIR} GITEA_CONF=integrations/mysql.ini ./integrations.test
 
 .PHONY: test-pgsql
 test-pgsql: integrations.test
-	GITEA_CONF=integrations/pgsql.ini ./integrations.test
+	GITEA_ROOT=${CURDIR} GITEA_CONF=integrations/pgsql.ini ./integrations.test
 
 integrations.test: $(SOURCES)
 	go test -c code.gitea.io/gitea/integrations -tags 'sqlite'

integrations/editor_test.go

@@ -0,0 +1,106 @@
+// Copyright 2017 The Gitea 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 integrations
+
+import (
+	"bytes"
+	"net/http"
+	"net/url"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCreateFile(t *testing.T) {
+	prepareTestEnv(t)
+
+	session := loginUser(t, "user2", "password")
+
+	// Request editor page
+	req, err := http.NewRequest("GET", "/user2/repo1/_new/master/", nil)
+	assert.NoError(t, err)
+	resp := session.MakeRequest(t, req)
+	assert.EqualValues(t, http.StatusOK, resp.HeaderCode)
+
+	doc, err := NewHtmlParser(resp.Body)
+	assert.NoError(t, err)
+	lastCommit := doc.GetInputValueByName("last_commit")
+	assert.NotEmpty(t, lastCommit)
+
+	// Save new file to master branch
+	req, err = http.NewRequest("POST", "/user2/repo1/_new/master/",
+		bytes.NewBufferString(url.Values{
+			"_csrf":         []string{doc.GetInputValueByName("_csrf")},
+			"last_commit":   []string{lastCommit},
+			"tree_path":     []string{"test.txt"},
+			"content":       []string{"Content"},
+			"commit_choice": []string{"direct"},
+		}.Encode()),
+	)
+	assert.NoError(t, err)
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	resp = session.MakeRequest(t, req)
+	assert.EqualValues(t, http.StatusFound, resp.HeaderCode)
+}
+
+func TestCreateFileOnProtectedBranch(t *testing.T) {
+	prepareTestEnv(t)
+
+	session := loginUser(t, "user2", "password")
+
+	// Open repository branch settings
+	req, err := http.NewRequest("GET", "/user2/repo1/settings/branches", nil)
+	assert.NoError(t, err)
+	resp := session.MakeRequest(t, req)
+	assert.EqualValues(t, http.StatusOK, resp.HeaderCode)
+
+	doc, err := NewHtmlParser(resp.Body)
+	assert.NoError(t, err)
+
+	// Change master branch to protected
+	req, err = http.NewRequest("POST", "/user2/repo1/settings/branches?action=protected_branch",
+		bytes.NewBufferString(url.Values{
+			"_csrf":      []string{doc.GetInputValueByName("_csrf")},
+			"branchName": []string{"master"},
+			"canPush":    []string{"true"},
+		}.Encode()),
+	)
+	assert.NoError(t, err)
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	resp = session.MakeRequest(t, req)
+	assert.EqualValues(t, http.StatusOK, resp.HeaderCode)
+	// Check if master branch has been locked successfully
+	flashCookie := session.GetCookie("macaron_flash")
+	assert.NotNil(t, flashCookie)
+	assert.EqualValues(t, flashCookie.Value, "success%3Dmaster%2BLocked%2Bsuccessfully")
+
+	// Request editor page
+	req, err = http.NewRequest("GET", "/user2/repo1/_new/master/", nil)
+	assert.NoError(t, err)
+	resp = session.MakeRequest(t, req)
+	assert.EqualValues(t, http.StatusOK, resp.HeaderCode)
+
+	doc, err = NewHtmlParser(resp.Body)
+	assert.NoError(t, err)
+	lastCommit := doc.GetInputValueByName("last_commit")
+	assert.NotEmpty(t, lastCommit)
+
+	// Save new file to master branch
+	req, err = http.NewRequest("POST", "/user2/repo1/_new/master/",
+		bytes.NewBufferString(url.Values{
+			"_csrf":         []string{doc.GetInputValueByName("_csrf")},
+			"last_commit":   []string{lastCommit},
+			"tree_path":     []string{"test.txt"},
+			"content":       []string{"Content"},
+			"commit_choice": []string{"direct"},
+		}.Encode()),
+	)
+	assert.NoError(t, err)
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	resp = session.MakeRequest(t, req)
+	assert.EqualValues(t, http.StatusOK, resp.HeaderCode)
+	// Check body for error message
+	assert.Contains(t, string(resp.Body), "Can not commit to protected branch 'master'.")
+}

integrations/html_helper.go

@@ -0,0 +1,110 @@
+// Copyright 2017 The Gitea 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 integrations
+
+import (
+	"bytes"
+
+	"golang.org/x/net/html"
+)
+
+type HtmlDoc struct {
+	doc  *html.Node
+	body *html.Node
+}
+
+func NewHtmlParser(content []byte) (*HtmlDoc, error) {
+	doc, err := html.Parse(bytes.NewReader(content))
+	if err != nil {
+		return nil, err
+	}
+
+	return &HtmlDoc{doc: doc}, nil
+}
+
+func (doc *HtmlDoc) GetBody() *html.Node {
+	if doc.body == nil {
+		var b *html.Node
+		var f func(*html.Node)
+		f = func(n *html.Node) {
+			if n.Type == html.ElementNode && n.Data == "body" {
+				b = n
+				return
+			}
+			for c := n.FirstChild; c != nil; c = c.NextSibling {
+				f(c)
+			}
+		}
+		f(doc.doc)
+		if b != nil {
+			doc.body = b
+		} else {
+			doc.body = doc.doc
+		}
+	}
+	return doc.body
+}
+
+func (doc *HtmlDoc) GetAttribute(n *html.Node, key string) (string, bool) {
+	for _, attr := range n.Attr {
+		if attr.Key == key {
+			return attr.Val, true
+		}
+	}
+	return "", false
+}
+
+func (doc *HtmlDoc) checkAttr(n *html.Node, attr, val string) bool {
+	if n.Type == html.ElementNode {
+		s, ok := doc.GetAttribute(n, attr)
+		if ok && s == val {
+			return true
+		}
+	}
+	return false
+}
+
+func (doc *HtmlDoc) traverse(n *html.Node, attr, val string) *html.Node {
+	if doc.checkAttr(n, attr, val) {
+		return n
+	}
+
+	for c := n.FirstChild; c != nil; c = c.NextSibling {
+		result := doc.traverse(c, attr, val)
+		if result != nil {
+			return result
+		}
+	}
+
+	return nil
+}
+
+func (doc *HtmlDoc) GetElementById(id string) *html.Node {
+	return doc.traverse(doc.GetBody(), "id", id)
+}
+
+func (doc *HtmlDoc) GetInputValueById(id string) string {
+	inp := doc.GetElementById(id)
+	if inp == nil {
+		return ""
+	}
+
+	val, _ := doc.GetAttribute(inp, "value")
+	return val
+}
+
+func (doc *HtmlDoc) GetElementByName(name string) *html.Node {
+	return doc.traverse(doc.GetBody(), "name", name)
+}
+
+func (doc *HtmlDoc) GetInputValueByName(name string) string {
+	inp := doc.GetElementByName(name)
+	if inp == nil {
+		return ""
+	}
+
+	val, _ := doc.GetAttribute(inp, "value")
+	return val
+}

integrations/integration_test.go

@@ -11,7 +11,10 @@ import (
 	"io"
 	"log"
 	"net/http"
+	"net/http/cookiejar"
+	"net/url"
 	"os"
+	"strings"
 	"testing"
 
 	"code.gitea.io/gitea/models"
@@ -60,6 +63,10 @@ func initIntegrationTest() {
 		fmt.Println("Environment variable $GITEA_CONF not set")
 		os.Exit(1)
 	}
+	if os.Getenv("GITEA_ROOT") == "" {
+		fmt.Println("Environment variable $GITEA_ROOT not set")
+		os.Exit(1)
+	}
 
 	setting.NewContext()
 	models.LoadConfigs()
@@ -103,13 +110,82 @@ func prepareTestEnv(t *testing.T) {
 	assert.NoError(t, com.CopyDir("integrations/gitea-integration-meta", "integrations/gitea-integration"))
 }
 
+type TestSession struct {
+	jar http.CookieJar
+}
+
+func (s *TestSession) GetCookie(name string) *http.Cookie {
+	baseURL, err := url.Parse(setting.AppURL)
+	if err != nil {
+		return nil
+	}
+
+	for _, c := range s.jar.Cookies(baseURL) {
+		if c.Name == name {
+			return c
+		}
+	}
+	return nil
+}
+
+func (s *TestSession) MakeRequest(t *testing.T, req *http.Request) *TestResponse {
+	baseURL, err := url.Parse(setting.AppURL)
+	assert.NoError(t, err)
+	for _, c := range s.jar.Cookies(baseURL) {
+		req.AddCookie(c)
+	}
+	resp := MakeRequest(req)
+
+	ch := http.Header{}
+	ch.Add("Cookie", strings.Join(resp.Headers["Set-Cookie"], ";"))
+	cr := http.Request{Header: ch}
+	s.jar.SetCookies(baseURL, cr.Cookies())
+
+	return resp
+}
+
+func loginUser(t *testing.T, userName, password string) *TestSession {
+	req, err := http.NewRequest("GET", "/user/login", nil)
+	assert.NoError(t, err)
+	resp := MakeRequest(req)
+	assert.EqualValues(t, http.StatusOK, resp.HeaderCode)
+
+	doc, err := NewHtmlParser(resp.Body)
+	assert.NoError(t, err)
+
+	req, err = http.NewRequest("POST", "/user/login",
+		bytes.NewBufferString(url.Values{
+			"_csrf":     []string{doc.GetInputValueByName("_csrf")},
+			"user_name": []string{userName},
+			"password":  []string{password},
+		}.Encode()),
+	)
+	assert.NoError(t, err)
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	resp = MakeRequest(req)
+	assert.EqualValues(t, http.StatusFound, resp.HeaderCode)
+
+	ch := http.Header{}
+	ch.Add("Cookie", strings.Join(resp.Headers["Set-Cookie"], ";"))
+	cr := http.Request{Header: ch}
+
+	jar, err := cookiejar.New(nil)
+	assert.NoError(t, err)
+	baseURL, err := url.Parse(setting.AppURL)
+	assert.NoError(t, err)
+	jar.SetCookies(baseURL, cr.Cookies())
+
+	return &TestSession{jar: jar}
+}
+
 type TestResponseWriter struct {
 	HeaderCode int
 	Writer     io.Writer
+	Headers    http.Header
 }
 
 func (w *TestResponseWriter) Header() http.Header {
-	return make(map[string][]string)
+	return w.Headers
 }
 
 func (w *TestResponseWriter) Write(b []byte) (int, error) {
@@ -123,16 +199,19 @@ func (w *TestResponseWriter) WriteHeader(n int) {
 type TestResponse struct {
 	HeaderCode int
 	Body       []byte
+	Headers    http.Header
 }
 
 func MakeRequest(req *http.Request) *TestResponse {
 	buffer := bytes.NewBuffer(nil)
 	respWriter := &TestResponseWriter{
-		Writer: buffer,
+		Writer:  buffer,
+		Headers: make(map[string][]string),
 	}
 	mac.ServeHTTP(respWriter, req)
 	return &TestResponse{
 		HeaderCode: respWriter.HeaderCode,
 		Body:       buffer.Bytes(),
+		Headers:    respWriter.Headers,
 	}
 }

models/branches.go

@@ -63,6 +63,23 @@ func (repo *Repository) GetProtectedBranches() ([]*ProtectedBranch, error) {
 	return protectedBranches, x.Find(&protectedBranches, &ProtectedBranch{RepoID: repo.ID})
 }
 
+// IsProtectedBranch checks if branch is protected
+func (repo *Repository) IsProtectedBranch(branchName string) (bool, error) {
+	protectedBranch := &ProtectedBranch{
+		RepoID:     repo.ID,
+		BranchName: branchName,
+	}
+
+	has, err := x.Get(protectedBranch)
+	if err != nil {
+		return true, err
+	} else if has {
+		return true, nil
+	}
+
+	return false, nil
+}
+
 // AddProtectedBranch add protection to branch
 func (repo *Repository) AddProtectedBranch(branchName string, canPush bool) error {
 	protectedBranch := &ProtectedBranch{

models/fixtures/user.yml

@@ -18,15 +18,16 @@
   name: user2
   full_name: User Two
   email: user2@example.com
-  passwd: password
+  passwd: 7d93daa0d1e6f2305cc8fa496847d61dc7320bb16262f9c55dd753480207234cdd96a93194e408341971742f4701772a025a # password
   type: 0 # individual
-  salt: salt
+  salt: ZogKvWdyEx
   is_admin: false
   avatar: avatar2
   avatar_email: user2@example.com
   num_repos: 2
   num_stars: 2
   num_followers: 1
+  is_active: true
 
 -
   id: 3

modules/context/repo.go

@@ -75,6 +75,16 @@ func (r *Repository) CanEnableEditor() bool {
 	return r.Repository.CanEnableEditor() && r.IsViewBranch && r.IsWriter()
 }
 
+// CanCommitToBranch returns true if repository is editable and user has proper access level
+//   and branch is not protected
+func (r *Repository) CanCommitToBranch() (bool, error) {
+	protectedBranch, err := r.Repository.IsProtectedBranch(r.BranchName)
+	if err != nil {
+		return false, err
+	}
+	return r.CanEnableEditor() && !protectedBranch, nil
+}
+
 // GetEditorconfig returns the .editorconfig definition if found in the
 // HEAD of the default repo branch.
 func (r *Repository) GetEditorconfig() (*editorconfig.Editorconfig, error) {

options/locale/locale_en-US.ini

@@ -560,6 +560,7 @@ editor.fail_to_update_file = Failed to update/create file '%s' with error: %v
 editor.add_subdir = Add subdirectory...
 editor.unable_to_upload_files = Failed to upload files to '%s' with error: %v
 editor.upload_files_to_dir = Upload files to '%s'
+editor.cannot_commit_to_protected_branch = Can not commit to protected branch '%s'.
 
 commits.commits = Commits
 commits.search = Search commits

routers/repo/editor.go

@@ -26,13 +26,26 @@ const (
 	tplEditDiffPreview base.TplName = "repo/editor/diff_preview"
 	tplDeleteFile      base.TplName = "repo/editor/delete"
 	tplUploadFile      base.TplName = "repo/editor/upload"
+
+	frmCommitChoiceDirect    string = "direct"
+	frmCommitChoiceNewBranch string = "commit-to-new-branch"
 )
 
+func renderCommitRights(ctx *context.Context) bool {
+	canCommit, err := ctx.Repo.CanCommitToBranch()
+	if err != nil {
+		log.Error(4, "CanCommitToBranch: %v", err)
+	}
+	ctx.Data["CanCommitToBranch"] = canCommit
+	return canCommit
+}
+
 func editFile(ctx *context.Context, isNewFile bool) {
 	ctx.Data["PageIsEdit"] = true
 	ctx.Data["IsNewFile"] = isNewFile
 	ctx.Data["RequireHighlightJS"] = true
 	ctx.Data["RequireSimpleMDE"] = true
+	canCommit := renderCommitRights(ctx)
 
 	var treeNames []string
 	if len(ctx.Repo.TreePath) > 0 {
@@ -90,7 +103,11 @@ func editFile(ctx *context.Context, isNewFile bool) {
 	ctx.Data["BranchLink"] = ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchName
 	ctx.Data["commit_summary"] = ""
 	ctx.Data["commit_message"] = ""
-	ctx.Data["commit_choice"] = "direct"
+	if canCommit {
+		ctx.Data["commit_choice"] = frmCommitChoiceDirect
+	} else {
+		ctx.Data["commit_choice"] = frmCommitChoiceNewBranch
+	}
 	ctx.Data["new_branch_name"] = ""
 	ctx.Data["last_commit"] = ctx.Repo.Commit.ID
 	ctx.Data["MarkdownFileExts"] = strings.Join(setting.Markdown.FileExtensions, ",")
@@ -116,6 +133,7 @@ func editFilePost(ctx *context.Context, form auth.EditRepoFileForm, isNewFile bo
 	ctx.Data["IsNewFile"] = isNewFile
 	ctx.Data["RequireHighlightJS"] = true
 	ctx.Data["RequireSimpleMDE"] = true
+	canCommit := renderCommitRights(ctx)
 
 	oldBranchName := ctx.Repo.BranchName
 	branchName := oldBranchName
@@ -123,7 +141,7 @@ func editFilePost(ctx *context.Context, form auth.EditRepoFileForm, isNewFile bo
 	lastCommit := form.LastCommit
 	form.LastCommit = ctx.Repo.Commit.ID.String()
 
-	if form.CommitChoice == "commit-to-new-branch" {
+	if form.CommitChoice == frmCommitChoiceNewBranch {
 		branchName = form.NewBranchName
 	}
 
@@ -164,6 +182,11 @@ func editFilePost(ctx *context.Context, form auth.EditRepoFileForm, isNewFile bo
 			ctx.RenderWithErr(ctx.Tr("repo.editor.branch_already_exists", branchName), tplEditFile, &form)
 			return
 		}
+	} else if !canCommit {
+		ctx.Data["Err_NewBranchName"] = true
+		ctx.Data["commit_choice"] = frmCommitChoiceNewBranch
+		ctx.RenderWithErr(ctx.Tr("repo.editor.cannot_commit_to_protected_branch", branchName), tplEditFile, &form)
+		return
 	}
 
 	var newTreePath string
@@ -317,10 +340,17 @@ func DeleteFile(ctx *context.Context) {
 	ctx.Data["PageIsDelete"] = true
 	ctx.Data["BranchLink"] = ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchName
 	ctx.Data["TreePath"] = ctx.Repo.TreePath
+	canCommit := renderCommitRights(ctx)
+
 	ctx.Data["commit_summary"] = ""
 	ctx.Data["commit_message"] = ""
-	ctx.Data["commit_choice"] = "direct"
+	if canCommit {
+		ctx.Data["commit_choice"] = frmCommitChoiceDirect
+	} else {
+		ctx.Data["commit_choice"] = frmCommitChoiceNewBranch
+	}
 	ctx.Data["new_branch_name"] = ""
+
 	ctx.HTML(200, tplDeleteFile)
 }
 
@@ -329,11 +359,12 @@ func DeleteFilePost(ctx *context.Context, form auth.DeleteRepoFileForm) {
 	ctx.Data["PageIsDelete"] = true
 	ctx.Data["BranchLink"] = ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchName
 	ctx.Data["TreePath"] = ctx.Repo.TreePath
+	canCommit := renderCommitRights(ctx)
 
 	oldBranchName := ctx.Repo.BranchName
 	branchName := oldBranchName
 
-	if form.CommitChoice == "commit-to-new-branch" {
+	if form.CommitChoice == frmCommitChoiceNewBranch {
 		branchName = form.NewBranchName
 	}
 	ctx.Data["commit_summary"] = form.CommitSummary
@@ -352,6 +383,11 @@ func DeleteFilePost(ctx *context.Context, form auth.DeleteRepoFileForm) {
 			ctx.RenderWithErr(ctx.Tr("repo.editor.branch_already_exists", branchName), tplDeleteFile, &form)
 			return
 		}
+	} else if !canCommit {
+		ctx.Data["Err_NewBranchName"] = true
+		ctx.Data["commit_choice"] = frmCommitChoiceNewBranch
+		ctx.RenderWithErr(ctx.Tr("repo.editor.cannot_commit_to_protected_branch", branchName), tplDeleteFile, &form)
+		return
 	}
 
 	message := strings.TrimSpace(form.CommitSummary)
@@ -390,6 +426,7 @@ func renderUploadSettings(ctx *context.Context) {
 func UploadFile(ctx *context.Context) {
 	ctx.Data["PageIsUpload"] = true
 	renderUploadSettings(ctx)
+	canCommit := renderCommitRights(ctx)
 
 	// We must at least have one element for user to input.
 	treeNames := []string{""}
@@ -401,7 +438,11 @@ func UploadFile(ctx *context.Context) {
 	ctx.Data["BranchLink"] = ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchName
 	ctx.Data["commit_summary"] = ""
 	ctx.Data["commit_message"] = ""
-	ctx.Data["commit_choice"] = "direct"
+	if canCommit {
+		ctx.Data["commit_choice"] = frmCommitChoiceDirect
+	} else {
+		ctx.Data["commit_choice"] = frmCommitChoiceNewBranch
+	}
 	ctx.Data["new_branch_name"] = ""
 
 	ctx.HTML(200, tplUploadFile)
@@ -411,11 +452,12 @@ func UploadFile(ctx *context.Context) {
 func UploadFilePost(ctx *context.Context, form auth.UploadRepoFileForm) {
 	ctx.Data["PageIsUpload"] = true
 	renderUploadSettings(ctx)
+	canCommit := renderCommitRights(ctx)
 
 	oldBranchName := ctx.Repo.BranchName
 	branchName := oldBranchName
 
-	if form.CommitChoice == "commit-to-new-branch" {
+	if form.CommitChoice == frmCommitChoiceNewBranch {
 		branchName = form.NewBranchName
 	}
 
@@ -446,6 +488,11 @@ func UploadFilePost(ctx *context.Context, form auth.UploadRepoFileForm) {
 			ctx.RenderWithErr(ctx.Tr("repo.editor.branch_already_exists", branchName), tplUploadFile, &form)
 			return
 		}
+	} else if !canCommit {
+		ctx.Data["Err_NewBranchName"] = true
+		ctx.Data["commit_choice"] = frmCommitChoiceNewBranch
+		ctx.RenderWithErr(ctx.Tr("repo.editor.cannot_commit_to_protected_branch", branchName), tplUploadFile, &form)
+		return
 	}
 
 	var newTreePath string

templates/repo/editor/commit_form.tmpl

@@ -10,7 +10,7 @@
 		</div>
 		<div class="quick-pull-choice js-quick-pull-choice">
 			<div class="field">
-		 		<div class="ui radio checkbox">
+		 		<div class="ui radio checkbox {{if not .CanCommitToBranch}}disabled{{end}}">
 					<input type="radio" class="js-quick-pull-choice-option" name="commit_choice" value="direct" {{if eq .commit_choice "direct"}}checked{{end}}>
 					<label>
 						<i class="octicon octicon-git-commit" height="16" width="14"></i>