mirror of
https://github.com/swissmakers/wireguard-manager.git
synced 2025-07-20 14:20:57 +02:00
336 lines
15 KiB
Go
336 lines
15 KiB
Go
package main
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import (
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"crypto/sha512"
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"embed"
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"flag"
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"fmt"
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"io/fs"
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"net"
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"net/http"
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"os"
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"strings"
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"syscall"
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"time"
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"github.com/labstack/echo-contrib/session"
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"github.com/labstack/echo/v4"
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"github.com/labstack/gommon/log"
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"github.com/swissmakers/wireguard-manager/emailer"
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"github.com/swissmakers/wireguard-manager/handler"
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"github.com/swissmakers/wireguard-manager/router"
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"github.com/swissmakers/wireguard-manager/store"
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"github.com/swissmakers/wireguard-manager/store/jsondb"
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"github.com/swissmakers/wireguard-manager/util"
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)
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var (
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// App version information.
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appVersion = "stable"
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gitCommit = "N/A"
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gitRef = "N/A"
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buildTime = time.Now().UTC().Format("01-02-2006 15:04:05")
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// Configuration variables with defaults.
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flagDisableLogin = false
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flagProxy = false
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flagBindAddress = "0.0.0.0:5000"
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flagSmtpHostname = "127.0.0.1"
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flagSmtpPort = 25
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flagSmtpUsername string
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flagSmtpPassword string
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flagSmtpAuthType = "NONE"
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flagSmtpNoTLSCheck = false
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flagSmtpEncryption = "STARTTLS"
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flagSmtpHelo = "localhost"
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flagSendgridApiKey string
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flagEmailFrom string
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flagEmailFromName = "WireGuard Manager"
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// IMPORTANT: Instead of generating a new random secret on each run,
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// we now persist the secret in our JSON DB if no SESSION_SECRET is provided.
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flagSessionSecret = util.GetPersistedSessionSecret()
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flagSessionMaxDuration = 90
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flagWgConfTemplate string
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flagBasePath string
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flagSubnetRanges string
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)
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const (
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defaultEmailSubject = "Your wireguard configuration"
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defaultEmailContent = `Hi,</br>
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<p>In this email you can find your personal configuration for our wireguard server.</p>
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<p>Best</p>
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`
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)
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//go:embed templates/*
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var embeddedTemplates embed.FS
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//go:embed assets/*
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var embeddedAssets embed.FS
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func init() {
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// Bind command-line flags and environment variables.
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flag.BoolVar(&flagDisableLogin, "disable-login", util.LookupEnvOrBool("DISABLE_LOGIN", flagDisableLogin), "Disable authentication on the app. This is potentially dangerous.")
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flag.BoolVar(&flagProxy, "proxy", util.LookupEnvOrBool("PROXY", flagProxy), "Behind a proxy. Use X-FORWARDED-FOR for failed login logging")
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flag.StringVar(&flagBindAddress, "bind-address", util.LookupEnvOrString("BIND_ADDRESS", flagBindAddress), "Address:Port to which the app will be bound.")
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flag.StringVar(&flagSmtpHostname, "smtp-hostname", util.LookupEnvOrString("SMTP_HOSTNAME", flagSmtpHostname), "SMTP Hostname")
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flag.IntVar(&flagSmtpPort, "smtp-port", util.LookupEnvOrInt("SMTP_PORT", flagSmtpPort), "SMTP Port")
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flag.StringVar(&flagSmtpHelo, "smtp-helo", util.LookupEnvOrString("SMTP_HELO", flagSmtpHelo), "SMTP HELO Hostname")
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flag.StringVar(&flagSmtpUsername, "smtp-username", util.LookupEnvOrString("SMTP_USERNAME", flagSmtpUsername), "SMTP Username")
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flag.BoolVar(&flagSmtpNoTLSCheck, "smtp-no-tls-check", util.LookupEnvOrBool("SMTP_NO_TLS_CHECK", flagSmtpNoTLSCheck), "Disable TLS verification for SMTP. This is potentially dangerous.")
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flag.StringVar(&flagSmtpEncryption, "smtp-encryption", util.LookupEnvOrString("SMTP_ENCRYPTION", flagSmtpEncryption), "SMTP Encryption: NONE, SSL, SSLTLS, TLS or STARTTLS (by default)")
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flag.StringVar(&flagSmtpAuthType, "smtp-auth-type", util.LookupEnvOrString("SMTP_AUTH_TYPE", flagSmtpAuthType), "SMTP Auth Type: PLAIN, LOGIN or NONE.")
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flag.StringVar(&flagEmailFrom, "email-from", util.LookupEnvOrString("EMAIL_FROM_ADDRESS", flagEmailFrom), "'From' email address.")
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flag.StringVar(&flagEmailFromName, "email-from-name", util.LookupEnvOrString("EMAIL_FROM_NAME", flagEmailFromName), "'From' email name.")
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flag.StringVar(&flagWgConfTemplate, "wg-conf-template", util.LookupEnvOrString("WG_CONF_TEMPLATE", flagWgConfTemplate), "Path to custom wg.conf template.")
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flag.StringVar(&flagBasePath, "base-path", util.LookupEnvOrString("BASE_PATH", flagBasePath), "The base path of the URL")
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flag.StringVar(&flagSubnetRanges, "subnet-ranges", util.LookupEnvOrString("SUBNET_RANGES", flagSubnetRanges), "IP ranges to choose from when assigning an IP for a client.")
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flag.IntVar(&flagSessionMaxDuration, "session-max-duration", util.LookupEnvOrInt("SESSION_MAX_DURATION", flagSessionMaxDuration), "Max time in days a remembered session is refreshed and valid.")
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// Handle SMTP password, Sendgrid API key and session secret.
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var (
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smtpPasswordLookup = util.LookupEnvOrString("SMTP_PASSWORD", flagSmtpPassword)
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sendgridApiKeyLookup = util.LookupEnvOrString("SENDGRID_API_KEY", flagSendgridApiKey)
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sessionSecretLookup = util.LookupEnvOrString("SESSION_SECRET", flagSessionSecret)
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)
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if smtpPasswordLookup != "" {
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flag.StringVar(&flagSmtpPassword, "smtp-password", smtpPasswordLookup, "SMTP Password")
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} else {
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flag.StringVar(&flagSmtpPassword, "smtp-password", util.LookupEnvOrFile("SMTP_PASSWORD_FILE", flagSmtpPassword), "SMTP Password File")
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}
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if sendgridApiKeyLookup != "" {
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flag.StringVar(&flagSendgridApiKey, "sendgrid-api-key", sendgridApiKeyLookup, "Your sendgrid api key.")
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} else {
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flag.StringVar(&flagSendgridApiKey, "sendgrid-api-key", util.LookupEnvOrFile("SENDGRID_API_KEY_FILE", flagSendgridApiKey), "File containing your sendgrid api key.")
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}
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// Use the persisted session secret as default.
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if sessionSecretLookup != "" {
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flag.StringVar(&flagSessionSecret, "session-secret", sessionSecretLookup, "The key used to encrypt session cookies.")
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} else {
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flag.StringVar(&flagSessionSecret, "session-secret", util.LookupEnvOrFile("SESSION_SECRET_FILE", flagSessionSecret), "File containing the key used to encrypt session cookies.")
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}
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flag.Parse()
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// Update runtime config in util package.
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util.DisableLogin = flagDisableLogin
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util.Proxy = flagProxy
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util.BindAddress = flagBindAddress
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util.SmtpHostname = flagSmtpHostname
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util.SmtpPort = flagSmtpPort
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util.SmtpHelo = flagSmtpHelo
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util.SmtpUsername = flagSmtpUsername
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util.SmtpPassword = flagSmtpPassword
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util.SmtpAuthType = flagSmtpAuthType
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util.SmtpNoTLSCheck = flagSmtpNoTLSCheck
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util.SmtpEncryption = flagSmtpEncryption
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util.SendgridApiKey = flagSendgridApiKey
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util.EmailFrom = flagEmailFrom
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util.EmailFromName = flagEmailFromName
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// Use a stable session secret.
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util.SessionSecret = sha512.Sum512([]byte(flagSessionSecret))
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// DEBUG: Log the session secret hash for verification (remove in production)
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log.Debugf("Using session secret (SHA512 hash): %x", util.SessionSecret)
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util.SessionMaxDuration = int64(flagSessionMaxDuration) * 86_400 // store in seconds
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util.WgConfTemplate = flagWgConfTemplate
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util.BasePath = util.ParseBasePath(flagBasePath)
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util.SubnetRanges = util.ParseSubnetRanges(flagSubnetRanges)
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// Set log level.
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lvl, _ := util.ParseLogLevel(util.LookupEnvOrString(util.LogLevel, "INFO"))
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log.SetLevel(lvl)
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// Print app information if log level is INFO or lower.
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if lvl <= log.INFO {
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fmt.Println("WireGuard Manager")
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fmt.Println("App Version\t:", appVersion)
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fmt.Println("Git Commit\t:", gitCommit)
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fmt.Println("Git Ref\t\t:", gitRef)
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fmt.Println("Build Time\t:", buildTime)
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fmt.Println("Git Repo\t:", "https://github.com/swissmakers/wireguard-manager")
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fmt.Println("Authentication\t:", !util.DisableLogin)
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fmt.Println("Bind address\t:", util.BindAddress)
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fmt.Println("Email from\t:", util.EmailFrom)
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fmt.Println("Email from name\t:", util.EmailFromName)
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fmt.Println("Custom wg.conf\t:", util.WgConfTemplate)
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fmt.Println("Base path\t:", util.BasePath+"/")
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fmt.Println("Subnet ranges\t:", util.GetSubnetRangesString())
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}
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}
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func main() {
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// Initialize the JSON DB store.
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db, err := jsondb.New("./db")
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if err != nil {
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log.Fatalf("Error initializing database: %v", err)
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}
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if err := db.Init(); err != nil {
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log.Fatalf("Error initializing database: %v", err)
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}
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// Extra app data for templates.
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extraData := map[string]interface{}{
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"appVersion": appVersion,
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"gitCommit": gitCommit,
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"basePath": util.BasePath,
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"loginDisabled": flagDisableLogin,
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}
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// Strip the "templates/" prefix from the embedded templates directory.
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tmplDir, err := fs.Sub(embeddedTemplates, "templates")
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if err != nil {
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log.Fatalf("Error processing templates: %v", err)
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}
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// Create the WireGuard server configuration if it doesn't exist.
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initServerConfig(db, tmplDir)
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// Validate and fix subnet ranges.
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if err := util.ValidateAndFixSubnetRanges(db); err != nil {
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log.Fatalf("Invalid subnet ranges: %v", err)
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}
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if lvl, _ := util.ParseLogLevel(util.LookupEnvOrString(util.LogLevel, "INFO")); lvl <= log.INFO {
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fmt.Println("Valid subnet ranges:", util.GetSubnetRangesString())
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}
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// Initialize the Echo router using our optimized router.New.
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app := router.New(tmplDir, extraData, util.SessionSecret)
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// Additional middleware: Clear invalid session cookies from both response and request.
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app.Use(func(next echo.HandlerFunc) echo.HandlerFunc {
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return func(c echo.Context) error {
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if _, err := session.Get("session", c); err != nil {
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log.Debugf("session.Get failed: %v", err)
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// Clear invalid cookie in response.
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cookie := &http.Cookie{
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Name: "session_token",
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Value: "",
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Path: util.GetCookiePath(),
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MaxAge: -1,
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HttpOnly: true,
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SameSite: http.SameSiteLaxMode,
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}
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c.SetCookie(cookie)
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// Also remove the invalid cookie from the request header.
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c.Request().Header.Del("Cookie")
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}
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return next(c)
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}
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})
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// Register routes. (Note: The order of middleware matters.)
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app.GET(util.BasePath, handler.WireGuardClients(db), handler.ValidSession, handler.RefreshSession)
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if !util.DisableLogin {
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app.GET(util.BasePath+"/login", handler.LoginPage())
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app.POST(util.BasePath+"/login", handler.Login(db), handler.ContentTypeJson)
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app.GET(util.BasePath+"/logout", handler.Logout(), handler.ValidSession)
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app.GET(util.BasePath+"/profile", handler.LoadProfile(), handler.ValidSession, handler.RefreshSession)
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app.GET(util.BasePath+"/users-settings", handler.UsersSettings(), handler.ValidSession, handler.RefreshSession, handler.NeedsAdmin)
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app.POST(util.BasePath+"/update-user", handler.UpdateUser(db), handler.ValidSession, handler.ContentTypeJson)
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app.POST(util.BasePath+"/create-user", handler.CreateUser(db), handler.ValidSession, handler.ContentTypeJson, handler.NeedsAdmin)
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app.POST(util.BasePath+"/remove-user", handler.RemoveUser(db), handler.ValidSession, handler.ContentTypeJson, handler.NeedsAdmin)
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app.GET(util.BasePath+"/get-users", handler.GetUsers(db), handler.ValidSession, handler.NeedsAdmin)
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app.GET(util.BasePath+"/api/user/:username", handler.GetUser(db), handler.ValidSession)
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}
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// Initialize the email sender.
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var sendmail emailer.Emailer
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if util.SendgridApiKey != "" {
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sendmail = emailer.NewSendgridApiMail(util.SendgridApiKey, util.EmailFromName, util.EmailFrom)
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} else {
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sendmail = emailer.NewSmtpMail(util.SmtpHostname, util.SmtpPort, util.SmtpUsername, util.SmtpPassword,
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util.SmtpHelo, util.SmtpNoTLSCheck, util.SmtpAuthType, util.EmailFromName, util.EmailFrom, util.SmtpEncryption)
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}
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// Additional API and page routes.
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app.GET(util.BasePath+"/test-hash", handler.GetHashesChanges(db), handler.ValidSession)
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app.GET(util.BasePath+"/_health", handler.Health())
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app.GET(util.BasePath+"/favicon", handler.Favicon())
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app.POST(util.BasePath+"/new-client", handler.NewClient(db), handler.ValidSession, handler.ContentTypeJson)
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app.POST(util.BasePath+"/update-client", handler.UpdateClient(db), handler.ValidSession, handler.ContentTypeJson)
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app.POST(util.BasePath+"/email-client", handler.EmailClient(db, sendmail, defaultEmailSubject, defaultEmailContent),
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handler.ValidSession, handler.ContentTypeJson)
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app.POST(util.BasePath+"/client/set-status", handler.SetClientStatus(db), handler.ValidSession, handler.ContentTypeJson)
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app.POST(util.BasePath+"/remove-client", handler.RemoveClient(db), handler.ValidSession, handler.ContentTypeJson)
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app.GET(util.BasePath+"/download", handler.DownloadClient(db), handler.ValidSession)
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app.GET(util.BasePath+"/wg-server", handler.WireGuardServer(db), handler.ValidSession, handler.RefreshSession, handler.NeedsAdmin)
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app.POST(util.BasePath+"/wg-server/interfaces", handler.WireGuardServerInterfaces(db),
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handler.ValidSession, handler.ContentTypeJson, handler.NeedsAdmin)
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app.POST(util.BasePath+"/wg-server/keypair", handler.WireGuardServerKeyPair(db),
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handler.ValidSession, handler.ContentTypeJson, handler.NeedsAdmin)
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app.GET(util.BasePath+"/global-settings", handler.GlobalSettings(db),
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handler.ValidSession, handler.RefreshSession, handler.NeedsAdmin)
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app.POST(util.BasePath+"/global-settings", handler.GlobalSettingSubmit(db),
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handler.ValidSession, handler.ContentTypeJson, handler.NeedsAdmin)
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app.GET(util.BasePath+"/status", handler.Status(db), handler.ValidSession, handler.RefreshSession)
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app.GET(util.BasePath+"/api/clients", handler.GetClients(db), handler.ValidSession)
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app.GET(util.BasePath+"/api/client/:id", handler.GetClient(db), handler.ValidSession)
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app.GET(util.BasePath+"/api/machine-ips", handler.MachineIPAddresses(), handler.ValidSession)
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app.GET(util.BasePath+"/api/connection-status", handler.APIStatus(db), handler.ValidSession)
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app.GET(util.BasePath+"/api/subnet-ranges", handler.GetOrderedSubnetRanges(), handler.ValidSession)
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app.GET(util.BasePath+"/api/suggest-client-ips", handler.SuggestIPAllocation(db), handler.ValidSession)
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app.POST(util.BasePath+"/api/apply-wg-config", handler.ApplyServerConfig(db, tmplDir),
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handler.ValidSession, handler.ContentTypeJson)
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// Serve static files from the embedded assets.
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assetsDir, err := fs.Sub(embeddedAssets, "assets")
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if err != nil {
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log.Fatalf("Error processing assets: %v", err)
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}
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assetHandler := http.FileServer(http.FS(assetsDir))
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app.GET(util.BasePath+"/static/*", echo.WrapHandler(http.StripPrefix(util.BasePath+"/static/", assetHandler)))
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// Listen on the appropriate socket.
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if strings.HasPrefix(util.BindAddress, "unix://") {
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// For Unix domain sockets.
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if err := syscall.Unlink(util.BindAddress[6:]); err != nil {
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app.Logger.Fatalf("Cannot unlink unix socket: %v", err)
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}
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l, err := net.Listen("unix", util.BindAddress[6:])
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if err != nil {
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app.Logger.Fatalf("Cannot create unix socket: %v", err)
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}
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app.Listener = l
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app.Logger.Fatal(app.Start(""))
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} else {
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// For TCP sockets.
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app.Logger.Fatal(app.Start(util.BindAddress))
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}
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}
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// initServerConfig creates the WireGuard config file if it doesn't exist.
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func initServerConfig(db store.IStore, tmplDir fs.FS) {
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settings, err := db.GetGlobalSettings()
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if err != nil {
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log.Fatalf("Cannot get global settings: %v", err)
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}
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if _, err := os.Stat(settings.ConfigFilePath); err == nil {
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// Config file exists; do not overwrite.
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return
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}
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server, err := db.GetServer()
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if err != nil {
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log.Fatalf("Cannot get server config: %v", err)
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}
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clients, err := db.GetClients(false)
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if err != nil {
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log.Fatalf("Cannot get client config: %v", err)
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}
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users, err := db.GetUsers()
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if err != nil {
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log.Fatalf("Cannot get user config: %v", err)
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}
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if err := util.WriteWireGuardServerConfig(tmplDir, server, clients, users, settings); err != nil {
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log.Fatalf("Cannot create server config: %v", err)
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}
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}
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