3x-ui/web/entity/entity.go
Sanaei ea53da9341
Add SSRF protection (#4044)
* Add SSRF protection for custom geo downloads

Introduce SSRF-safe HTTP transport for custom geo operations by adding ssrfSafeTransport and isBlockedIP helpers. The transport resolves hosts and blocks loopback, private, link-local and unspecified addresses, returning ErrCustomGeoSSRFBlocked on violations. Update probeCustomGeoURLWithGET, probeCustomGeoURL and downloadToPathOnce to use the safe transport. Also add the new error ErrCustomGeoSSRFBlocked and necessary imports. Minor whitespace/formatting adjustments in subClashService.go, web/entity/entity.go and web/service/setting.go.

* Add path traversal protection for custom geo

Prevent path traversal when handling custom geo downloads by adding ErrCustomGeoPathTraversal and a validateDestPath() helper that ensures destination paths stay inside the bin folder. Call validateDestPath from downloadToPathOnce, Update and Delete paths and wrap errors appropriately. Reconstruct sanitized URLs in sanitizeURL to break taint propagation before use. Map the new path-traversal error to a user-facing i18n message in the controller.

* fix
2026-04-20 00:18:20 +02:00

187 lines
11 KiB
Go

// Package entity defines data structures and entities used by the web layer of the 3x-ui panel.
package entity
import (
"crypto/tls"
"math"
"net"
"strings"
"time"
"github.com/mhsanaei/3x-ui/v2/util/common"
)
// Msg represents a standard API response message with success status, message text, and optional data object.
type Msg struct {
Success bool `json:"success"` // Indicates if the operation was successful
Msg string `json:"msg"` // Response message text
Obj any `json:"obj"` // Optional data object
}
// AllSetting contains all configuration settings for the 3x-ui panel including web server, Telegram bot, and subscription settings.
type AllSetting struct {
// Web server settings
WebListen string `json:"webListen" form:"webListen"` // Web server listen IP address
WebDomain string `json:"webDomain" form:"webDomain"` // Web server domain for domain validation
WebPort int `json:"webPort" form:"webPort"` // Web server port number
WebCertFile string `json:"webCertFile" form:"webCertFile"` // Path to SSL certificate file for web server
WebKeyFile string `json:"webKeyFile" form:"webKeyFile"` // Path to SSL private key file for web server
WebBasePath string `json:"webBasePath" form:"webBasePath"` // Base path for web panel URLs
SessionMaxAge int `json:"sessionMaxAge" form:"sessionMaxAge"` // Session maximum age in minutes
// UI settings
PageSize int `json:"pageSize" form:"pageSize"` // Number of items per page in lists
ExpireDiff int `json:"expireDiff" form:"expireDiff"` // Expiration warning threshold in days
TrafficDiff int `json:"trafficDiff" form:"trafficDiff"` // Traffic warning threshold percentage
RemarkModel string `json:"remarkModel" form:"remarkModel"` // Remark model pattern for inbounds
Datepicker string `json:"datepicker" form:"datepicker"` // Date picker format
// Telegram bot settings
TgBotEnable bool `json:"tgBotEnable" form:"tgBotEnable"` // Enable Telegram bot notifications
TgBotToken string `json:"tgBotToken" form:"tgBotToken"` // Telegram bot token
TgBotProxy string `json:"tgBotProxy" form:"tgBotProxy"` // Proxy URL for Telegram bot
TgBotAPIServer string `json:"tgBotAPIServer" form:"tgBotAPIServer"` // Custom API server for Telegram bot
TgBotChatId string `json:"tgBotChatId" form:"tgBotChatId"` // Telegram chat ID for notifications
TgRunTime string `json:"tgRunTime" form:"tgRunTime"` // Cron schedule for Telegram notifications
TgBotBackup bool `json:"tgBotBackup" form:"tgBotBackup"` // Enable database backup via Telegram
TgBotLoginNotify bool `json:"tgBotLoginNotify" form:"tgBotLoginNotify"` // Send login notifications
TgCpu int `json:"tgCpu" form:"tgCpu"` // CPU usage threshold for alerts
TgLang string `json:"tgLang" form:"tgLang"` // Telegram bot language
// Security settings
TimeLocation string `json:"timeLocation" form:"timeLocation"` // Time zone location
TwoFactorEnable bool `json:"twoFactorEnable" form:"twoFactorEnable"` // Enable two-factor authentication
TwoFactorToken string `json:"twoFactorToken" form:"twoFactorToken"` // Two-factor authentication token
// Subscription server settings
SubEnable bool `json:"subEnable" form:"subEnable"` // Enable subscription server
SubJsonEnable bool `json:"subJsonEnable" form:"subJsonEnable"` // Enable JSON subscription endpoint
SubTitle string `json:"subTitle" form:"subTitle"` // Subscription title
SubSupportUrl string `json:"subSupportUrl" form:"subSupportUrl"` // Subscription support URL
SubProfileUrl string `json:"subProfileUrl" form:"subProfileUrl"` // Subscription profile URL
SubAnnounce string `json:"subAnnounce" form:"subAnnounce"` // Subscription announce
SubEnableRouting bool `json:"subEnableRouting" form:"subEnableRouting"` // Enable routing for subscription
SubRoutingRules string `json:"subRoutingRules" form:"subRoutingRules"` // Subscription global routing rules (Only for Happ)
SubListen string `json:"subListen" form:"subListen"` // Subscription server listen IP
SubPort int `json:"subPort" form:"subPort"` // Subscription server port
SubPath string `json:"subPath" form:"subPath"` // Base path for subscription URLs
SubDomain string `json:"subDomain" form:"subDomain"` // Domain for subscription server validation
SubCertFile string `json:"subCertFile" form:"subCertFile"` // SSL certificate file for subscription server
SubKeyFile string `json:"subKeyFile" form:"subKeyFile"` // SSL private key file for subscription server
SubUpdates int `json:"subUpdates" form:"subUpdates"` // Subscription update interval in minutes
ExternalTrafficInformEnable bool `json:"externalTrafficInformEnable" form:"externalTrafficInformEnable"` // Enable external traffic reporting
ExternalTrafficInformURI string `json:"externalTrafficInformURI" form:"externalTrafficInformURI"` // URI for external traffic reporting
SubEncrypt bool `json:"subEncrypt" form:"subEncrypt"` // Encrypt subscription responses
SubShowInfo bool `json:"subShowInfo" form:"subShowInfo"` // Show client information in subscriptions
SubURI string `json:"subURI" form:"subURI"` // Subscription server URI
SubJsonPath string `json:"subJsonPath" form:"subJsonPath"` // Path for JSON subscription endpoint
SubJsonURI string `json:"subJsonURI" form:"subJsonURI"` // JSON subscription server URI
SubClashEnable bool `json:"subClashEnable" form:"subClashEnable"` // Enable Clash/Mihomo subscription endpoint
SubClashPath string `json:"subClashPath" form:"subClashPath"` // Path for Clash/Mihomo subscription endpoint
SubClashURI string `json:"subClashURI" form:"subClashURI"` // Clash/Mihomo subscription server URI
SubJsonFragment string `json:"subJsonFragment" form:"subJsonFragment"` // JSON subscription fragment configuration
SubJsonNoises string `json:"subJsonNoises" form:"subJsonNoises"` // JSON subscription noise configuration
SubJsonMux string `json:"subJsonMux" form:"subJsonMux"` // JSON subscription mux configuration
SubJsonRules string `json:"subJsonRules" form:"subJsonRules"`
// LDAP settings
LdapEnable bool `json:"ldapEnable" form:"ldapEnable"`
LdapHost string `json:"ldapHost" form:"ldapHost"`
LdapPort int `json:"ldapPort" form:"ldapPort"`
LdapUseTLS bool `json:"ldapUseTLS" form:"ldapUseTLS"`
LdapBindDN string `json:"ldapBindDN" form:"ldapBindDN"`
LdapPassword string `json:"ldapPassword" form:"ldapPassword"`
LdapBaseDN string `json:"ldapBaseDN" form:"ldapBaseDN"`
LdapUserFilter string `json:"ldapUserFilter" form:"ldapUserFilter"`
LdapUserAttr string `json:"ldapUserAttr" form:"ldapUserAttr"` // e.g., mail or uid
LdapVlessField string `json:"ldapVlessField" form:"ldapVlessField"`
LdapSyncCron string `json:"ldapSyncCron" form:"ldapSyncCron"`
// Generic flag configuration
LdapFlagField string `json:"ldapFlagField" form:"ldapFlagField"`
LdapTruthyValues string `json:"ldapTruthyValues" form:"ldapTruthyValues"`
LdapInvertFlag bool `json:"ldapInvertFlag" form:"ldapInvertFlag"`
LdapInboundTags string `json:"ldapInboundTags" form:"ldapInboundTags"`
LdapAutoCreate bool `json:"ldapAutoCreate" form:"ldapAutoCreate"`
LdapAutoDelete bool `json:"ldapAutoDelete" form:"ldapAutoDelete"`
LdapDefaultTotalGB int `json:"ldapDefaultTotalGB" form:"ldapDefaultTotalGB"`
LdapDefaultExpiryDays int `json:"ldapDefaultExpiryDays" form:"ldapDefaultExpiryDays"`
LdapDefaultLimitIP int `json:"ldapDefaultLimitIP" form:"ldapDefaultLimitIP"`
// JSON subscription routing rules
}
// CheckValid validates all settings in the AllSetting struct, checking IP addresses, ports, SSL certificates, and other configuration values.
func (s *AllSetting) CheckValid() error {
if s.WebListen != "" {
ip := net.ParseIP(s.WebListen)
if ip == nil {
return common.NewError("web listen is not valid ip:", s.WebListen)
}
}
if s.SubListen != "" {
ip := net.ParseIP(s.SubListen)
if ip == nil {
return common.NewError("Sub listen is not valid ip:", s.SubListen)
}
}
if s.WebPort <= 0 || s.WebPort > math.MaxUint16 {
return common.NewError("web port is not a valid port:", s.WebPort)
}
if s.SubPort <= 0 || s.SubPort > math.MaxUint16 {
return common.NewError("Sub port is not a valid port:", s.SubPort)
}
if (s.SubPort == s.WebPort) && (s.WebListen == s.SubListen) {
return common.NewError("Sub and Web could not use same ip:port, ", s.SubListen, ":", s.SubPort, " & ", s.WebListen, ":", s.WebPort)
}
if s.WebCertFile != "" || s.WebKeyFile != "" {
_, err := tls.LoadX509KeyPair(s.WebCertFile, s.WebKeyFile)
if err != nil {
return common.NewErrorf("cert file <%v> or key file <%v> invalid: %v", s.WebCertFile, s.WebKeyFile, err)
}
}
if s.SubCertFile != "" || s.SubKeyFile != "" {
_, err := tls.LoadX509KeyPair(s.SubCertFile, s.SubKeyFile)
if err != nil {
return common.NewErrorf("cert file <%v> or key file <%v> invalid: %v", s.SubCertFile, s.SubKeyFile, err)
}
}
if !strings.HasPrefix(s.WebBasePath, "/") {
s.WebBasePath = "/" + s.WebBasePath
}
if !strings.HasSuffix(s.WebBasePath, "/") {
s.WebBasePath += "/"
}
if !strings.HasPrefix(s.SubPath, "/") {
s.SubPath = "/" + s.SubPath
}
if !strings.HasSuffix(s.SubPath, "/") {
s.SubPath += "/"
}
if !strings.HasPrefix(s.SubJsonPath, "/") {
s.SubJsonPath = "/" + s.SubJsonPath
}
if !strings.HasSuffix(s.SubJsonPath, "/") {
s.SubJsonPath += "/"
}
if !strings.HasPrefix(s.SubClashPath, "/") {
s.SubClashPath = "/" + s.SubClashPath
}
if !strings.HasSuffix(s.SubClashPath, "/") {
s.SubClashPath += "/"
}
_, err := time.LoadLocation(s.TimeLocation)
if err != nil {
return common.NewError("time location not exist:", s.TimeLocation)
}
return nil
}