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Validate External Tracker URL Format (#7089)

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* Validate External Tracker URL Format

Add some validation checks for external tracker URL format.

Fixes #7068

* Don't make {index} a hard requirement

* Fix Description

* make fmt

* move regex to package level

* fix copyright date
This commit is contained in:
mrsdizzie 2019-05-31 05:21:15 -04:00 committed by zeripath
parent 592924a34b
commit de6ef14d04
3 changed files with 87 additions and 1 deletions
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19
modules/validation/helpers.go
View File

@ -7,6 +7,7 @@ package validation
import (
"net"
"net/url"
"regexp"
"strings"
"code.gitea.io/gitea/modules/setting"
@ -14,6 +15,8 @@ import (
var loopbackIPBlocks []*net.IPNet
var externalTrackerRegex = regexp.MustCompile(`({?)(?:user|repo|index)+?(}?)`)
func init() {
for _, cidr := range []string{
"127.0.0.0/8", // IPv4 loopback
@ -75,3 +78,19 @@ func IsValidExternalURL(uri string) bool {
return true
}
// IsValidExternalTrackerURLFormat checks if URL matches required syntax for external trackers
func IsValidExternalTrackerURLFormat(uri string) bool {
if !IsValidExternalURL(uri) {
return false
}
// check for typoed variables like /{index/ or /[repo}
for _, match := range externalTrackerRegex.FindAllStringSubmatch(uri, -1) {
if (match[1] == "{" || match[2] == "}") && (match[1] != "{" || match[2] != "}") {
return false
}
}
return true
}

67
modules/validation/helpers_test.go
View File

@ -88,3 +88,70 @@ func Test_IsValidExternalURL(t *testing.T) {
})
}
}
func Test_IsValidExternalTrackerURLFormat(t *testing.T) {
setting.AppURL = "https://try.gitea.io/"
cases := []struct {
description string
url string
valid bool
}{
{
description: "Correct external tracker URL with all placeholders",
url: "https://github.com/{user}/{repo}/issues/{index}",
valid: true,
},
{
description: "Local external tracker URL with all placeholders",
url: "https://127.0.0.1/{user}/{repo}/issues/{index}",
valid: false,
},
{
description: "External tracker URL with typo placeholder",
url: "https://github.com/{user}/{repo/issues/{index}",
valid: false,
},
{
description: "External tracker URL with typo placeholder",
url: "https://github.com/[user}/{repo/issues/{index}",
valid: false,
},
{
description: "External tracker URL with typo placeholder",
url: "https://github.com/{user}/repo}/issues/{index}",
valid: false,
},
{
description: "External tracker URL missing optional placeholder",
url: "https://github.com/{user}/issues/{index}",
valid: true,
},
{
description: "External tracker URL missing optional placeholder",
url: "https://github.com/{repo}/issues/{index}",
valid: true,
},
{
description: "External tracker URL missing optional placeholder",
url: "https://github.com/issues/{index}",
valid: true,
},
{
description: "External tracker URL missing optional placeholder",
url: "https://github.com/issues/{user}",
valid: true,
},
{
description: "External tracker URL with similar placeholder names test",
url: "https://github.com/user/repo/issues/{index}",
valid: true,
},
}
for _, testCase := range cases {
t.Run(testCase.description, func(t *testing.T) {
assert.Equal(t, testCase.valid, IsValidExternalTrackerURLFormat(testCase.url))
})
}
}

2
routers/repo/setting.go
View File

@ -249,7 +249,7 @@ func SettingsPost(ctx *context.Context, form auth.RepoSettingForm) {
ctx.Redirect(repo.Link() + "/settings")
return
}
if len(form.TrackerURLFormat) != 0 && !validation.IsValidExternalURL(form.TrackerURLFormat) {
if len(form.TrackerURLFormat) != 0 && !validation.IsValidExternalTrackerURLFormat(form.TrackerURLFormat) {
ctx.Flash.Error(ctx.Tr("repo.settings.tracker_url_format_error"))
ctx.Redirect(repo.Link() + "/settings")
return