92466129ec
* Improve URL validation for external wiki and external issues * Do not allow also localhost address for external URLs
103 lines
2.5 KiB
Go
103 lines
2.5 KiB
Go
// 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 validation
|
|
|
|
import (
|
|
"fmt"
|
|
"regexp"
|
|
"strings"
|
|
|
|
"github.com/go-macaron/binding"
|
|
)
|
|
|
|
const (
|
|
// ErrGitRefName is git reference name error
|
|
ErrGitRefName = "GitRefNameError"
|
|
)
|
|
|
|
var (
|
|
// GitRefNamePattern is regular expression with unallowed characters in git reference name
|
|
GitRefNamePattern = regexp.MustCompile("[^\\d\\w-_\\./]")
|
|
)
|
|
|
|
// AddBindingRules adds additional binding rules
|
|
func AddBindingRules() {
|
|
addGitRefNameBindingRule()
|
|
addValidURLBindingRule()
|
|
}
|
|
|
|
func addGitRefNameBindingRule() {
|
|
// Git refname validation rule
|
|
binding.AddRule(&binding.Rule{
|
|
IsMatch: func(rule string) bool {
|
|
return strings.HasPrefix(rule, "GitRefName")
|
|
},
|
|
IsValid: func(errs binding.Errors, name string, val interface{}) (bool, binding.Errors) {
|
|
str := fmt.Sprintf("%v", val)
|
|
|
|
if GitRefNamePattern.MatchString(str) {
|
|
errs.Add([]string{name}, ErrGitRefName, "GitRefName")
|
|
return false, errs
|
|
}
|
|
// Additional rules as described at https://www.kernel.org/pub/software/scm/git/docs/git-check-ref-format.html
|
|
if strings.HasPrefix(str, "/") || strings.HasSuffix(str, "/") ||
|
|
strings.HasSuffix(str, ".") || strings.Contains(str, "..") ||
|
|
strings.Contains(str, "//") {
|
|
errs.Add([]string{name}, ErrGitRefName, "GitRefName")
|
|
return false, errs
|
|
}
|
|
parts := strings.Split(str, "/")
|
|
for _, part := range parts {
|
|
if strings.HasSuffix(part, ".lock") || strings.HasPrefix(part, ".") {
|
|
errs.Add([]string{name}, ErrGitRefName, "GitRefName")
|
|
return false, errs
|
|
}
|
|
}
|
|
|
|
return true, errs
|
|
},
|
|
})
|
|
}
|
|
|
|
func addValidURLBindingRule() {
|
|
// URL validation rule
|
|
binding.AddRule(&binding.Rule{
|
|
IsMatch: func(rule string) bool {
|
|
return strings.HasPrefix(rule, "ValidUrl")
|
|
},
|
|
IsValid: func(errs binding.Errors, name string, val interface{}) (bool, binding.Errors) {
|
|
str := fmt.Sprintf("%v", val)
|
|
if len(str) != 0 && !IsValidURL(str) {
|
|
errs.Add([]string{name}, binding.ERR_URL, "Url")
|
|
return false, errs
|
|
}
|
|
|
|
return true, errs
|
|
},
|
|
})
|
|
}
|
|
|
|
func portOnly(hostport string) string {
|
|
colon := strings.IndexByte(hostport, ':')
|
|
if colon == -1 {
|
|
return ""
|
|
}
|
|
if i := strings.Index(hostport, "]:"); i != -1 {
|
|
return hostport[i+len("]:"):]
|
|
}
|
|
if strings.Contains(hostport, "]") {
|
|
return ""
|
|
}
|
|
return hostport[colon+len(":"):]
|
|
}
|
|
|
|
func validPort(p string) bool {
|
|
for _, r := range []byte(p) {
|
|
if r < '0' || r > '9' {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|