go implementation

go/internal/config/config.go

@@ -0,0 +1,134 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"gopkg.in/yaml.v3"
+)
+
+type Config struct {
+	HTTP       HTTPConfig        `yaml:"http"`
+	Server     ServerConfig      `yaml:"server"`
+	SSL        SSLConfig         `yaml:"ssl"`
+	Logging    LoggingConfig     `yaml:"logging"`
+	Extensions []ExtensionConfig `yaml:"extensions"`
+}
+
+type HTTPConfig struct {
+	StaticDir    string `yaml:"static_dir"`
+	TemplatesDir string `yaml:"templates_dir"`
+}
+
+type ServerConfig struct {
+	Host                 string            `yaml:"host"`
+	Port                 int               `yaml:"port"`
+	Backlog              int               `yaml:"backlog"`
+	DefaultRoot          bool              `yaml:"default_root"`
+	ProxyTimeout         time.Duration     `yaml:"proxy_timeout"`
+	RedirectInstructions map[string]string `yaml:"redirect_instructions"`
+}
+
+type SSLConfig struct {
+	Enabled  bool   `yaml:"enabled"`
+	CertFile string `yaml:"cert_file"`
+	KeyFile  string `yaml:"key_file"`
+}
+
+type LoggingConfig struct {
+	Level         string            `yaml:"level"`
+	ConsoleOutput bool              `yaml:"console_output"`
+	Format        LogFormatConfig   `yaml:"format"`
+	Console       *ConsoleLogConfig `yaml:"console"`
+	Files         []FileLogConfig   `yaml:"files"`
+}
+
+type LogFormatConfig struct {
+	Type            string `yaml:"type"`
+	UseColors       bool   `yaml:"use_colors"`
+	ShowModule      bool   `yaml:"show_module"`
+	TimestampFormat string `yaml:"timestamp_format"`
+}
+
+type ConsoleLogConfig struct {
+	Format LogFormatConfig `yaml:"format"`
+	Level  string          `yaml:"level"`
+}
+
+type FileLogConfig struct {
+	Path        string          `yaml:"path"`
+	Level       string          `yaml:"level"`
+	Loggers     []string        `yaml:"loggers"`
+	Format      LogFormatConfig `yaml:"format"`
+	MaxBytes    int64           `yaml:"max_bytes"`
+	BackupCount int             `yaml:"backup_count"`
+}
+
+type ExtensionConfig struct {
+	Type   string                 `yaml:"type"`
+	Config map[string]interface{} `yaml:"config"`
+}
+
+func Load(path string) (*Config, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	cfg := Default()
+	if err := yaml.Unmarshal(data, cfg); err != nil {
+		return nil, fmt.Errorf("failed to parse config: %w", err)
+	}
+
+	return cfg, nil
+}
+
+func Default() *Config {
+	return &Config{
+		HTTP: HTTPConfig{
+			StaticDir:    "./static",
+			TemplatesDir: "./templates",
+		},
+		Server: ServerConfig{
+			Host:         "0.0.0.0",
+			Port:         8080,
+			Backlog:      5,
+			DefaultRoot:  false,
+			ProxyTimeout: 30 * time.Second,
+		},
+		SSL: SSLConfig{
+			Enabled:  false,
+			CertFile: "./ssl/cert.pem",
+			KeyFile:  "./ssl/key.pem",
+		},
+		Logging: LoggingConfig{
+			Level:         "INFO",
+			ConsoleOutput: true,
+			Format: LogFormatConfig{
+				Type:            "standard",
+				UseColors:       true,
+				ShowModule:      true,
+				TimestampFormat: "2006-01-02 15:04:05",
+			},
+		},
+		Extensions: []ExtensionConfig{},
+	}
+}
+
+func (c *Config) Validate() error {
+	if c.Server.Port < 1 || c.Server.Port > 65535 {
+		return fmt.Errorf("invalid port: %d", c.Server.Port)
+	}
+
+	if c.SSL.Enabled {
+		if c.SSL.CertFile == "" {
+			return fmt.Errorf("SSL enabled but cert_file not specified")
+		}
+		if c.SSL.KeyFile == "" {
+			return fmt.Errorf("SSL enabled but key_file not specified")
+		}
+	}
+
+	return nil
+}