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Clean up various use of escape/unescape functions for URL generation (#6334)

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* Use PathUnescape instead of QueryUnescape when working with branch names

Currently branch names with a '+' fail in certain situations because
QueryUnescape replaces the + character with a blank space.

Using PathUnescape should be better since it is defined as:

// PathUnescape is identical to QueryUnescape except that it does not
// unescape '+' to ' ' (space).

Fixes #6333

* Change error to match new function name

* Add new util function PathEscapeSegments

This function simply runs PathEscape on each segment of a path without
touching the forward slash itself. We want to use this instead of
PathEscape/QueryEscape in most cases because a forward slash is a valid name for a
branch etc... and we don't want that escaped in a URL.

Putting this in new file url.go and also moving a couple similar
functions into that file as well.

* Use EscapePathSegments where appropriate

Replace various uses of EscapePath/EscapeQuery with new
EscapePathSegments. Also remove uncessary uses of various
escape/unescape functions when the text had already been escaped or was
not escaped.

* Reformat comment to make drone build happy

* Remove no longer used url library

* Requested code changes
This commit is contained in:
mrsdizzie 2019-03-18 10:00:23 -04:00 • committed by techknowlogick
parent c151682fae
commit ca46385637
12 changed files with 80 additions and 68 deletions
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4
cmd/hook.go
View file

@ -8,7 +8,6 @@ import (
"bufio"
"bytes"
"fmt"
"net/url"
"os"
"strconv"
"strings"
@ -18,6 +17,7 @@ import (
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/private"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"github.com/urfave/cli"
)
@ -239,7 +239,7 @@ func runHookPostReceive(c *cli.Context) error {
branch = fmt.Sprintf("%s:%s", repo.OwnerName, branch)
}
fmt.Fprintf(os.Stderr, "Create a new pull request for '%s':\n", branch)
fmt.Fprintf(os.Stderr, " %s/compare/%s...%s\n", baseRepo.HTMLURL(), url.QueryEscape(baseRepo.DefaultBranch), url.QueryEscape(branch))
fmt.Fprintf(os.Stderr, " %s/compare/%s...%s\n", baseRepo.HTMLURL(), util.PathEscapeSegments(baseRepo.DefaultBranch), util.PathEscapeSegments(branch))
} else {
fmt.Fprint(os.Stderr, "Visit the existing pull request:\n")
fmt.Fprintf(os.Stderr, " %s/pulls/%d\n", baseRepo.HTMLURL(), pr.Index)

4
integrations/internal_test.go
View file

@ -8,17 +8,17 @@ import (
"encoding/json"
"fmt"
"net/http"
"net/url"
"testing"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"github.com/stretchr/testify/assert"
)
func assertProtectedBranch(t *testing.T, repoID int64, branchName string, isErr, canPush bool) {
reqURL := fmt.Sprintf("/api/internal/branch/%d/%s", repoID, url.QueryEscape(branchName))
reqURL := fmt.Sprintf("/api/internal/branch/%d/%s", repoID, util.PathEscapeSegments(branchName))
req := NewRequest(t, "GET", reqURL)
t.Log(reqURL)
req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", setting.InternalToken))

2
models/repo.go
View file

@ -838,7 +838,7 @@ type CloneLink struct {
// ComposeHTTPSCloneURL returns HTTPS clone URL based on given owner and repository name.
func ComposeHTTPSCloneURL(owner, repo string) string {
return fmt.Sprintf("%s%s/%s.git", setting.AppURL, url.QueryEscape(owner), url.QueryEscape(repo))
return fmt.Sprintf("%s%s/%s.git", setting.AppURL, url.PathEscape(owner), url.PathEscape(repo))
}
func (repo *Repository) cloneLink(e Engine, isWiki bool) *CloneLink {

8
modules/context/auth.go
View file

@ -5,8 +5,6 @@
package context
import (
"net/url"
"code.gitea.io/gitea/modules/auth"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
@ -48,7 +46,7 @@ func Toggle(options *ToggleOptions) macaron.Handler {
if ctx.Req.URL.Path != "/user/settings/change_password" {
ctx.Data["Title"] = ctx.Tr("auth.must_change_password")
ctx.Data["ChangePasscodeLink"] = setting.AppSubURL + "/user/change_password"
ctx.SetCookie("redirect_to", url.QueryEscape(setting.AppSubURL+ctx.Req.RequestURI), 0, setting.AppSubURL)
ctx.SetCookie("redirect_to", setting.AppSubURL+ctx.Req.RequestURI, 0, setting.AppSubURL)
ctx.Redirect(setting.AppSubURL + "/user/settings/change_password")
return
}
@ -82,7 +80,7 @@ func Toggle(options *ToggleOptions) macaron.Handler {
return
}
ctx.SetCookie("redirect_to", url.QueryEscape(setting.AppSubURL+ctx.Req.RequestURI), 0, setting.AppSubURL)
ctx.SetCookie("redirect_to", setting.AppSubURL+ctx.Req.RequestURI, 0, setting.AppSubURL)
ctx.Redirect(setting.AppSubURL + "/user/login")
return
} else if !ctx.User.IsActive && setting.Service.RegisterEmailConfirm {
@ -95,7 +93,7 @@ func Toggle(options *ToggleOptions) macaron.Handler {
// Redirect to log in page if auto-signin info is provided and has not signed in.
if !options.SignOutRequired && !ctx.IsSigned && !auth.IsAPIPath(ctx.Req.URL.Path) &&
len(ctx.GetCookie(setting.CookieUserName)) > 0 {
ctx.SetCookie("redirect_to", url.QueryEscape(setting.AppSubURL+ctx.Req.RequestURI), 0, setting.AppSubURL)
ctx.SetCookie("redirect_to", setting.AppSubURL+ctx.Req.RequestURI, 0, setting.AppSubURL)
ctx.Redirect(setting.AppSubURL + "/user/login")
return
}

3
modules/context/context.go
View file

@ -19,6 +19,7 @@ import (
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"github.com/Unknwon/com"
"github.com/go-macaron/cache"
"github.com/go-macaron/csrf"
@ -211,7 +212,7 @@ func Contexter() macaron.Handler {
if err == nil && len(repo.DefaultBranch) > 0 {
branchName = repo.DefaultBranch
}
prefix := setting.AppURL + path.Join(url.QueryEscape(ownerName), url.QueryEscape(repoName), "src", "branch", branchName)
prefix := setting.AppURL + path.Join(url.PathEscape(ownerName), url.PathEscape(repoName), "src", "branch", util.PathEscapeSegments(branchName))
c.Header().Set("Content-Type", "text/html")
c.WriteHeader(http.StatusOK)
c.Write([]byte(com.Expand(`<!doctype html>

2
modules/context/repo.go
View file

@ -172,7 +172,7 @@ func RetrieveBaseRepo(ctx *Context, repo *models.Repository) {
// ComposeGoGetImport returns go-get-import meta content.
func ComposeGoGetImport(owner, repo string) string {
return path.Join(setting.Domain, setting.AppSubURL, url.QueryEscape(owner), url.QueryEscape(repo))
return path.Join(setting.Domain, setting.AppSubURL, url.PathEscape(owner), url.PathEscape(repo))
}
// EarlyResponseForGoGetMeta responses appropriate go-get meta with status 200

4
modules/private/branch.go
View file

@ -7,17 +7,17 @@ package private
import (
"encoding/json"
"fmt"
"net/url"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
)
// GetProtectedBranchBy get protected branch information
func GetProtectedBranchBy(repoID int64, branchName string) (*models.ProtectedBranch, error) {
// Ask for running deliver hook and test pull request tasks.
reqURL := setting.LocalURL + fmt.Sprintf("api/internal/branch/%d/%s", repoID, url.PathEscape(branchName))
reqURL := setting.LocalURL + fmt.Sprintf("api/internal/branch/%d/%s", repoID, util.PathEscapeSegments(branchName))
log.GitLogger.Trace("GetProtectedBranchBy: %s", reqURL)
resp, err := newInternalRequest(reqURL, "GET").Response()

59
modules/util/url.go Normal file
View file

@ -0,0 +1,59 @@
// Copyright 2019 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 util
import (
"net/url"
"path"
"strings"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
)
// PathEscapeSegments escapes segments of a path while not escaping forward slash
func PathEscapeSegments(path string) string {
slice := strings.Split(path, "/")
for index := range slice {
slice[index] = url.PathEscape(slice[index])
}
escapedPath := strings.Join(slice, "/")
return escapedPath
}
// URLJoin joins url components, like path.Join, but preserving contents
func URLJoin(base string, elems ...string) string {
if !strings.HasSuffix(base, "/") {
base += "/"
}
baseURL, err := url.Parse(base)
if err != nil {
log.Error(4, "URLJoin: Invalid base URL %s", base)
return ""
}
joinedPath := path.Join(elems...)
argURL, err := url.Parse(joinedPath)
if err != nil {
log.Error(4, "URLJoin: Invalid arg %s", joinedPath)
return ""
}
joinedURL := baseURL.ResolveReference(argURL).String()
if !baseURL.IsAbs() && !strings.HasPrefix(base, "/") {
return joinedURL[1:] // Removing leading '/' if needed
}
return joinedURL
}
// IsExternalURL checks if rawURL points to an external URL like http://example.com
func IsExternalURL(rawURL string) bool {
parsed, err := url.Parse(rawURL)
if err != nil {
return true
}
if len(parsed.Host) != 0 && strings.Replace(parsed.Host, "www.", "", 1) != strings.Replace(setting.Domain, "www.", "", 1) {
return true
}
return false
}

40
modules/util/util.go
View file

@ -5,12 +5,7 @@
package util
import (
"net/url"
"path"
"strings"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
)
// OptionalBool a boolean that can be "null"
@ -56,41 +51,6 @@ func Max(a, b int) int {
return a
}
// URLJoin joins url components, like path.Join, but preserving contents
func URLJoin(base string, elems ...string) string {
if !strings.HasSuffix(base, "/") {
base += "/"
}
baseURL, err := url.Parse(base)
if err != nil {
log.Error(4, "URLJoin: Invalid base URL %s", base)
return ""
}
joinedPath := path.Join(elems...)
argURL, err := url.Parse(joinedPath)
if err != nil {
log.Error(4, "URLJoin: Invalid arg %s", joinedPath)
return ""
}
joinedURL := baseURL.ResolveReference(argURL).String()
if !baseURL.IsAbs() && !strings.HasPrefix(base, "/") {
return joinedURL[1:] // Removing leading '/' if needed
}
return joinedURL
}
// IsExternalURL checks if rawURL points to an external URL like http://example.com
func IsExternalURL(rawURL string) bool {
parsed, err := url.Parse(rawURL)
if err != nil {
return true
}
if len(parsed.Host) != 0 && strings.Replace(parsed.Host, "www.", "", 1) != strings.Replace(setting.Domain, "www.", "", 1) {
return true
}
return false
}
// Min min of two ints
func Min(a, b int) int {
if a > b {

3
routers/home.go
View file

@ -7,7 +7,6 @@ package routers
import (
"bytes"
"net/url"
"strings"
"code.gitea.io/gitea/models"
@ -48,7 +47,7 @@ func Home(ctx *context.Context) {
} else if ctx.User.MustChangePassword {
ctx.Data["Title"] = ctx.Tr("auth.must_change_password")
ctx.Data["ChangePasscodeLink"] = setting.AppSubURL + "/user/change_password"
ctx.SetCookie("redirect_to", url.QueryEscape(setting.AppSubURL+ctx.Req.RequestURI), 0, setting.AppSubURL)
ctx.SetCookie("redirect_to", setting.AppSubURL+ctx.Req.RequestURI, 0, setting.AppSubURL)
ctx.Redirect(setting.AppSubURL + "/user/settings/change_password")
} else {
user.Dashboard(ctx)

13
routers/private/repository.go
View file

@ -6,7 +6,6 @@ package private
import (
"net/http"
"net/url"
"code.gitea.io/gitea/models"
@ -56,18 +55,18 @@ func GetRepository(ctx *macaron.Context) {
func GetActivePullRequest(ctx *macaron.Context) {
baseRepoID := ctx.QueryInt64("baseRepoID")
headRepoID := ctx.QueryInt64("headRepoID")
baseBranch, err := url.QueryUnescape(ctx.QueryTrim("baseBranch"))
if err != nil {
baseBranch := ctx.QueryTrim("baseBranch")
if len(baseBranch) == 0 {
ctx.JSON(http.StatusInternalServerError, map[string]interface{}{
"err": err.Error(),
"err": "QueryTrim failed",
})
return
}
headBranch, err := url.QueryUnescape(ctx.QueryTrim("headBranch"))
if err != nil {
headBranch := ctx.QueryTrim("headBranch")
if len(headBranch) == 0 {
ctx.JSON(http.StatusInternalServerError, map[string]interface{}{
"err": err.Error(),
"err": "QueryTrim failed",
})
return
}

6
routers/repo/pull.go
View file

@ -10,7 +10,6 @@ import (
"container/list"
"fmt"
"io"
"net/url"
"path"
"strings"
@ -633,10 +632,7 @@ func ParseCompareInfo(ctx *context.Context) (*models.User, *models.Repository, *
infoPath string
err error
)
infoPath, err = url.QueryUnescape(ctx.Params("*"))
if err != nil {
ctx.NotFound("QueryUnescape", err)
}
infoPath = ctx.Params("*")
infos := strings.Split(infoPath, "...")
if len(infos) != 2 {
log.Trace("ParseCompareInfo[%d]: not enough compared branches information %s", baseRepo.ID, infos)