Tanishq Dubey
2470f121e2
Features: - Token-based subdomain claiming - NIC V2 (DynDNS2) protocol implementation - Technitium DNS integration - Rate limiting (10 req/min IP, 1 req/min token) - Web UI for space claiming - Docker/Docker Compose support - Compatible with UniFi, pfSense, EdgeRouter Module: git.dws.rip/DWS/dyn
84 lines
2.0 KiB
Go
84 lines
2.0 KiB
Go
package config
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import (
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"os"
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"strconv"
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"strings"
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)
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type Config struct {
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ServerPort string
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DatabasePath string
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TechnitiumURL string
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TechnitiumUsername string
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TechnitiumPassword string
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TechnitiumToken string
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BaseDomain string
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SpaceSubdomain string
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RateLimitPerIP int
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RateLimitPerToken int
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TrustedProxies []string
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}
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func Load() *Config {
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cfg := &Config{
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ServerPort: getEnv("SERVER_PORT", "8080"),
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DatabasePath: getEnv("DATABASE_PATH", "./dyn.db"),
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TechnitiumURL: getEnv("TECHNITIUM_URL", ""),
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TechnitiumUsername: getEnv("TECHNITIUM_USERNAME", ""),
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TechnitiumPassword: getEnv("TECHNITIUM_PASSWORD", ""),
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TechnitiumToken: getEnv("TECHNITIUM_TOKEN", ""),
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BaseDomain: getEnv("BASE_DOMAIN", "dws.rip"),
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SpaceSubdomain: getEnv("SPACE_SUBDOMAIN", "space"),
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RateLimitPerIP: getEnvAsInt("RATE_LIMIT_PER_IP", 10),
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RateLimitPerToken: getEnvAsInt("RATE_LIMIT_PER_TOKEN", 1),
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TrustedProxies: getEnvAsSlice("TRUSTED_PROXIES", []string{}),
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}
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return cfg
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}
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func (c *Config) Validate() []string {
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var errors []string
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if c.TechnitiumURL == "" {
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errors = append(errors, "TECHNITIUM_URL is required")
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}
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if c.TechnitiumToken == "" && (c.TechnitiumUsername == "" || c.TechnitiumPassword == "") {
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errors = append(errors, "Either TECHNITIUM_TOKEN or TECHNITIUM_USERNAME/PASSWORD must be provided")
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}
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return errors
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}
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func (c *Config) GetZone() string {
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if c.SpaceSubdomain == "" {
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return c.BaseDomain
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}
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return c.SpaceSubdomain + "." + c.BaseDomain
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}
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func getEnv(key, defaultValue string) string {
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if value := os.Getenv(key); value != "" {
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return value
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}
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return defaultValue
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}
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func getEnvAsInt(key string, defaultValue int) int {
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if value := os.Getenv(key); value != "" {
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if intVal, err := strconv.Atoi(value); err == nil {
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return intVal
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}
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}
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return defaultValue
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}
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func getEnvAsSlice(key string, defaultValue []string) []string {
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if value := os.Getenv(key); value != "" {
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return strings.Split(value, ",")
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}
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return defaultValue
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}
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