initial commit

protonvpn-wg-confgen/internal/constants/api.go

@@ -0,0 +1,37 @@
+// Package constants defines constants used throughout the application.
+package constants
+
+// API endpoints
+const (
+	DefaultAPIURL   = "https://vpn-api.proton.me"
+	AuthInfoPath    = "/core/v4/auth/info"
+	AuthPath        = "/core/v4/auth"
+	RefreshPath     = "/auth/refresh"
+	CertificatePath = "/vpn/v1/certificate"
+	LogicalsPath    = "/vpn/v1/logicals"
+)
+
+// API version headers - can be overridden at build time via ldflags:
+// go build -ldflags "-X .../internal/constants.AppVersion=linux-vpn@X.Y.Z"
+var (
+	AppVersion = "linux-vpn@4.13.1"
+	UserAgent  = "ProtonVPN/4.13.1 (Linux; Ubuntu)"
+)
+
+// API response codes
+// Reference: proton-python-client/proton/api.py checks for codes 1000 and 1001
+const (
+	APICodeSuccess     = 1000
+	APICodeMultiStatus = 1001 // Also indicates success in some contexts
+)
+
+// IsSuccessCode checks if an API response code indicates success
+func IsSuccessCode(code int) bool {
+	return code == APICodeSuccess || code == APICodeMultiStatus
+}
+
+// Server/feature status values
+const (
+	StatusOnline = 1
+	EnabledTrue  = 1
+)

protonvpn-wg-confgen/internal/constants/defaults.go

@@ -0,0 +1,14 @@
+package constants
+
+// Certificate defaults
+const (
+	DefaultCertDuration = "365d"
+	MaxCertDuration     = 365 // days
+	CertMode            = "persistent"
+	PublicKeyMode       = "EC"
+)
+
+// Server selection defaults
+const (
+	DefaultP2POnly = true
+)

protonvpn-wg-confgen/internal/constants/session.go

@@ -0,0 +1,9 @@
+package constants
+
+// Session defaults
+const (
+	SessionFileName      = ".protonvpn-session.json"
+	SessionFileMode      = 0o600   // Read/write for owner only
+	SessionRefreshDays   = 7       // Refresh when less than 7 days remain
+	SessionExpirySeconds = 2592000 // 30 days in seconds (from API)
+)

protonvpn-wg-confgen/internal/constants/wireguard.go

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+package constants
+
+// WireGuard defaults
+const (
+	WireGuardPort = 51820
+	DefaultMTU    = 1420
+
+	// IPv4 configuration
+	WireGuardIPv4         = "10.2.0.2/32"
+	DefaultDNSIPv4        = "10.2.0.1"
+	DefaultAllowedIPsIPv4 = "0.0.0.0/0"
+
+	// IPv6 configuration
+	WireGuardIPv6         = "2a07:b944::2:2/128"
+	DefaultDNSIPv6        = "2a07:b944::2:1"
+	DefaultAllowedIPsIPv6 = "::/0"
+)