mirror of
https://github.com/go-gitea/gitea.git
synced 2026-05-28 07:45:27 +00:00
111 lines
2.8 KiB
Go
111 lines
2.8 KiB
Go
// Copyright 2018 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package validation
|
|
|
|
import (
|
|
"net/url"
|
|
"regexp"
|
|
"slices"
|
|
"strings"
|
|
"sync"
|
|
|
|
"gitea.dev/modules/glob"
|
|
"gitea.dev/modules/setting"
|
|
)
|
|
|
|
type globalVarsStruct struct {
|
|
externalTrackerRegex *regexp.Regexp
|
|
validUsernamePattern *regexp.Regexp
|
|
invalidUsernamePattern *regexp.Regexp
|
|
validBadgeSlugPattern *regexp.Regexp
|
|
invalidBadgeSlugPattern *regexp.Regexp
|
|
}
|
|
|
|
var globalVars = sync.OnceValue(func() *globalVarsStruct {
|
|
return &globalVarsStruct{
|
|
externalTrackerRegex: regexp.MustCompile(`({?)(?:user|repo|index)+?(}?)`),
|
|
validUsernamePattern: regexp.MustCompile(`^[\da-zA-Z][-.\w]*$`),
|
|
invalidUsernamePattern: regexp.MustCompile(`[-._]{2,}|[-._]$`), // No consecutive or trailing non-alphanumeric chars
|
|
validBadgeSlugPattern: regexp.MustCompile(`^[A-Za-z0-9][A-Za-z0-9._-]*$`),
|
|
invalidBadgeSlugPattern: regexp.MustCompile(`[-._]{2,}|[-._]$`),
|
|
}
|
|
})
|
|
|
|
// IsValidURL checks if URL is valid
|
|
func IsValidURL(uri string) bool {
|
|
if u, err := url.ParseRequestURI(uri); err != nil ||
|
|
(u.Scheme != "http" && u.Scheme != "https") ||
|
|
!validPort(portOnly(u.Host)) {
|
|
return false
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
// IsValidSiteURL checks if URL is valid
|
|
func IsValidSiteURL(uri string) bool {
|
|
u, err := url.ParseRequestURI(uri)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
|
|
if !validPort(portOnly(u.Host)) {
|
|
return false
|
|
}
|
|
|
|
return slices.Contains(setting.Service.ValidSiteURLSchemes, u.Scheme)
|
|
}
|
|
|
|
// IsEmailDomainListed checks whether the domain of an email address
|
|
// matches a list of domains
|
|
func IsEmailDomainListed(globs []glob.Glob, email string) bool {
|
|
if len(globs) == 0 {
|
|
return false
|
|
}
|
|
|
|
n := strings.LastIndex(email, "@")
|
|
if n <= 0 {
|
|
return false
|
|
}
|
|
|
|
domain := strings.ToLower(email[n+1:])
|
|
|
|
for _, g := range globs {
|
|
if g.Match(domain) {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// IsValidExternalTrackerURLFormat checks if URL matches required syntax for external trackers
|
|
func IsValidExternalTrackerURLFormat(uri string) bool {
|
|
if !IsValidURL(uri) {
|
|
return false
|
|
}
|
|
vars := globalVars()
|
|
// check for typoed variables like /{index/ or /[repo}
|
|
for _, match := range vars.externalTrackerRegex.FindAllStringSubmatch(uri, -1) {
|
|
if (match[1] == "{" || match[2] == "}") && (match[1] != "{" || match[2] != "}") {
|
|
return false
|
|
}
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
// IsValidUsername checks if username is valid
|
|
func IsValidUsername(name string) bool {
|
|
// It is difficult to find a single pattern that is both readable and effective,
|
|
// but it's easier to use positive and negative checks.
|
|
vars := globalVars()
|
|
return vars.validUsernamePattern.MatchString(name) && !vars.invalidUsernamePattern.MatchString(name)
|
|
}
|
|
|
|
func IsValidBadgeSlug(slug string) bool {
|
|
vars := globalVars()
|
|
return vars.validBadgeSlugPattern.MatchString(slug) && !vars.invalidBadgeSlugPattern.MatchString(slug)
|
|
}
|