feat: Phase 1 — config, auth, OAuth2 PKCE, CLI scaffold, token store
This commit is contained in:
GoCalGoo
204
internal/config/config.go
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204
internal/config/config.go
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@@ -0,0 +1,204 @@
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package config
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"time"
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"github.com/spf13/viper"
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)
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type Config struct {
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App AppConfig `mapstructure:"app"`
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OAuth OAuthConfig `mapstructure:"oauth"`
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Google GoogleConfig `mapstructure:"google"`
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Server ServerConfig `mapstructure:"server"`
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API APIConfig `mapstructure:"api"`
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MCP MCPConfig `mapstructure:"mcp"`
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Security SecurityConfig `mapstructure:"security"`
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Output OutputConfig `mapstructure:"output"`
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}
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type AppConfig struct {
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Name string `mapstructure:"name"`
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Env string `mapstructure:"env"`
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LogLevel string `mapstructure:"log_level"`
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DataDir string `mapstructure:"data_dir"`
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}
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type OAuthConfig struct {
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ClientCredentialsFile string `mapstructure:"client_credentials_file"`
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TokenStoreFile string `mapstructure:"token_store_file"`
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DefaultPort int `mapstructure:"default_port"`
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OpenBrowser bool `mapstructure:"open_browser"`
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ManualFallback bool `mapstructure:"manual_fallback"`
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CallbackPath string `mapstructure:"callback_path"`
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}
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type GoogleConfig struct {
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Scopes []string `mapstructure:"scopes"`
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DefaultCalendarID string `mapstructure:"default_calendar_id"`
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}
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type ServerConfig struct {
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Bind string `mapstructure:"bind"`
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Port int `mapstructure:"port"`
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ReadTimeout time.Duration `mapstructure:"read_timeout"`
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WriteTimeout time.Duration `mapstructure:"write_timeout"`
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ShutdownTimeout time.Duration `mapstructure:"shutdown_timeout"`
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}
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type APIConfig struct {
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Enabled bool `mapstructure:"enabled"`
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BasePath string `mapstructure:"base_path"`
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Auth AuthCfg `mapstructure:"auth"`
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}
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type AuthCfg struct {
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OAuthBearerEnabled bool `mapstructure:"oauth_bearer_enabled"`
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APIKeyEnabled bool `mapstructure:"api_key_enabled"`
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}
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type MCPConfig struct {
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Enabled bool `mapstructure:"enabled"`
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Stdio bool `mapstructure:"stdio"`
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HTTP bool `mapstructure:"http"`
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HTTPPath string `mapstructure:"http_path"`
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ProtocolVersion string `mapstructure:"protocol_version"`
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SessionRequired bool `mapstructure:"session_required"`
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}
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type SecurityConfig struct {
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APIKeysFile string `mapstructure:"api_keys_file"`
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RedactSecretsInLogs bool `mapstructure:"redact_secrets_in_logs"`
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RequireTLSForRemote bool `mapstructure:"require_tls_for_remote_http"`
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}
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type OutputConfig struct {
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Format string `mapstructure:"format"`
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Timezone string `mapstructure:"timezone"`
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}
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func Load(cfgFile, profile string) (*Config, error) {
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v := viper.New()
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setDefaults(v)
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v.SetEnvPrefix("GOCALGOO")
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v.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
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v.AutomaticEnv()
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if cfgFile != "" {
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v.SetConfigFile(cfgFile)
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} else {
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home, err := os.UserHomeDir()
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if err != nil {
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return nil, fmt.Errorf("get home dir: %w", err)
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}
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cfgName := "config"
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if profile != "" {
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cfgName = "config." + profile
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}
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v.SetConfigName(cfgName)
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v.SetConfigType("yaml")
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v.AddConfigPath(filepath.Join(home, ".config", "gocalgoo"))
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v.AddConfigPath(".")
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v.AddConfigPath("./configs")
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}
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if err := v.ReadInConfig(); err != nil {
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if _, ok := err.(viper.ConfigFileNotFoundError); !ok {
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return nil, fmt.Errorf("read config: %w", err)
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}
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}
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var cfg Config
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if err := v.Unmarshal(&cfg); err != nil {
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return nil, fmt.Errorf("unmarshal config: %w", err)
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}
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cfg.OAuth.ClientCredentialsFile = expandHome(cfg.OAuth.ClientCredentialsFile)
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cfg.OAuth.TokenStoreFile = expandHome(cfg.OAuth.TokenStoreFile)
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cfg.Security.APIKeysFile = expandHome(cfg.Security.APIKeysFile)
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cfg.App.DataDir = expandHome(cfg.App.DataDir)
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return &cfg, nil
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}
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func Validate(cfg *Config) error {
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if cfg.OAuth.ClientCredentialsFile == "" {
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return fmt.Errorf("oauth.client_credentials_file is required")
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}
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if cfg.OAuth.TokenStoreFile == "" {
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return fmt.Errorf("oauth.token_store_file is required")
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}
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if len(cfg.Google.Scopes) == 0 {
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return fmt.Errorf("google.scopes must not be empty")
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}
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if cfg.Server.Port < 1 || cfg.Server.Port > 65535 {
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return fmt.Errorf("server.port must be 1-65535")
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}
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return nil
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}
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func setDefaults(v *viper.Viper) {
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home, _ := os.UserHomeDir()
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v.SetDefault("app.name", "GoCalGoo")
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v.SetDefault("app.env", "development")
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v.SetDefault("app.log_level", "info")
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v.SetDefault("app.data_dir", filepath.Join(home, ".local", "share", "gocalgoo"))
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v.SetDefault("oauth.client_credentials_file", filepath.Join(home, ".config", "gocalgoo", "credentials.json"))
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v.SetDefault("oauth.token_store_file", filepath.Join(home, ".config", "gocalgoo", "tokens.json"))
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v.SetDefault("oauth.default_port", 53682)
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v.SetDefault("oauth.open_browser", true)
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v.SetDefault("oauth.manual_fallback", true)
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v.SetDefault("oauth.callback_path", "/oauth/callback")
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v.SetDefault("google.scopes", []string{
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"https://www.googleapis.com/auth/calendar",
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"https://www.googleapis.com/auth/contacts",
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})
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v.SetDefault("google.default_calendar_id", "primary")
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v.SetDefault("server.bind", "127.0.0.1")
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v.SetDefault("server.port", 8080)
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v.SetDefault("server.read_timeout", "15s")
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v.SetDefault("server.write_timeout", "30s")
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v.SetDefault("server.shutdown_timeout", "10s")
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v.SetDefault("api.enabled", true)
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v.SetDefault("api.base_path", "/api/v1")
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v.SetDefault("api.auth.oauth_bearer_enabled", true)
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v.SetDefault("api.auth.api_key_enabled", true)
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v.SetDefault("mcp.enabled", true)
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v.SetDefault("mcp.stdio", true)
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v.SetDefault("mcp.http", true)
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v.SetDefault("mcp.http_path", "/mcp")
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v.SetDefault("mcp.protocol_version", "2025-06-18")
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v.SetDefault("mcp.session_required", true)
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v.SetDefault("security.api_keys_file", filepath.Join(home, ".config", "gocalgoo", "api-keys.yaml"))
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v.SetDefault("security.redact_secrets_in_logs", true)
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v.SetDefault("security.require_tls_for_remote_http", false)
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v.SetDefault("output.format", "table")
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v.SetDefault("output.timezone", "UTC")
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}
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func expandHome(path string) string {
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if path == "" {
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return path
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}
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if strings.HasPrefix(path, "~/") {
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home, err := os.UserHomeDir()
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if err != nil {
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return path
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}
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return filepath.Join(home, path[2:])
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}
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return path
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}
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