package config
import (
"time"
)
// Config represents the complete server configuration
type Config struct {
Server ServerConfig `yaml:"server" json:"server"`
Logging LoggingConfig `yaml:"logging" json:"logging"`
Tools ToolsConfig `yaml:"tools" json:"tools"`
Security SecurityConfig `yaml:"security" json:"security"`
}
// ServerConfig contains server-specific configuration
type ServerConfig struct {
Transport string `yaml:"transport" json:"transport"`
HTTP HTTPConfig `yaml:"http" json:"http"`
}
// HTTPConfig contains MCP-compliant HTTP transport configuration
type HTTPConfig struct {
Host string `yaml:"host" json:"host"`
Port int `yaml:"port" json:"port"`
SessionTimeout time.Duration `yaml:"session_timeout" json:"session_timeout"`
MaxConnections int `yaml:"max_connections" json:"max_connections"`
CORS CORSConfig `yaml:"cors" json:"cors"`
}
// CORSConfig contains CORS configuration
type CORSConfig struct {
Enabled bool `yaml:"enabled" json:"enabled"`
Origins []string `yaml:"origins" json:"origins"`
}
// LoggingConfig contains logging configuration
type LoggingConfig struct {
Level string `yaml:"level" json:"level"`
Format string `yaml:"format" json:"format"`
Output string `yaml:"output" json:"output"`
}
// ToolsConfig contains tools-specific configuration
type ToolsConfig struct {
Precision PrecisionConfig `yaml:"precision" json:"precision"`
ExpressionEval ExpressionEvalConfig `yaml:"expression_eval" json:"expression_eval"`
Statistics StatisticsConfig `yaml:"statistics" json:"statistics"`
Financial FinancialConfig `yaml:"financial" json:"financial"`
}
// PrecisionConfig contains precision configuration
type PrecisionConfig struct {
MaxDecimalPlaces int `yaml:"max_decimal_places" json:"max_decimal_places"`
DefaultDecimalPlaces int `yaml:"default_decimal_places" json:"default_decimal_places"`
}
// ExpressionEvalConfig contains expression evaluation configuration
type ExpressionEvalConfig struct {
Timeout time.Duration `yaml:"timeout" json:"timeout"`
MaxVariables int `yaml:"max_variables" json:"max_variables"`
}
// StatisticsConfig contains statistics configuration
type StatisticsConfig struct {
MaxDataPoints int `yaml:"max_data_points" json:"max_data_points"`
}
// FinancialConfig contains financial calculations configuration
type FinancialConfig struct {
CurrencyDefault string `yaml:"currency_default" json:"currency_default"`
}
// SecurityConfig contains security configuration
type SecurityConfig struct {
RateLimiting RateLimitingConfig `yaml:"rate_limiting" json:"rate_limiting"`
RequestSizeLimit string `yaml:"request_size_limit" json:"request_size_limit"`
}
// RateLimitingConfig contains rate limiting configuration
type RateLimitingConfig struct {
Enabled bool `yaml:"enabled" json:"enabled"`
RequestsPerMinute int `yaml:"requests_per_minute" json:"requests_per_minute"`
}
// Default returns a configuration with default values
func Default() *Config {
return &Config{
Server: ServerConfig{
Transport: "stdio",
HTTP: HTTPConfig{
Host: "127.0.0.1", // Default to localhost for security
Port: 8080,
SessionTimeout: 5 * time.Minute,
MaxConnections: 100,
CORS: CORSConfig{
Enabled: true,
Origins: []string{"http://localhost:3000", "http://127.0.0.1:3000"},
},
},
},
Logging: LoggingConfig{
Level: "info",
Format: "json",
Output: "stdout",
},
Tools: ToolsConfig{
Precision: PrecisionConfig{
MaxDecimalPlaces: 15,
DefaultDecimalPlaces: 2,
},
ExpressionEval: ExpressionEvalConfig{
Timeout: 10 * time.Second,
MaxVariables: 100,
},
Statistics: StatisticsConfig{
MaxDataPoints: 10000,
},
Financial: FinancialConfig{
CurrencyDefault: "USD",
},
},
Security: SecurityConfig{
RateLimiting: RateLimitingConfig{
Enabled: true,
RequestsPerMinute: 100,
},
RequestSizeLimit: "1MB",
},
}
}
// Validate validates the configuration
func (c *Config) Validate() error {
if c.Server.Transport != "stdio" && c.Server.Transport != "http" {
return ErrInvalidTransport
}
if c.Server.HTTP.Port < 1 || c.Server.HTTP.Port > 65535 {
return ErrInvalidPort
}
if c.Tools.Precision.MaxDecimalPlaces < 0 || c.Tools.Precision.MaxDecimalPlaces > 15 {
return ErrInvalidPrecision
}
if c.Tools.Precision.DefaultDecimalPlaces < 0 || c.Tools.Precision.DefaultDecimalPlaces > c.Tools.Precision.MaxDecimalPlaces {
return ErrInvalidDefaultPrecision
}
if c.Tools.ExpressionEval.MaxVariables < 1 {
return ErrInvalidMaxVariables
}
if c.Tools.Statistics.MaxDataPoints < 1 {
return ErrInvalidMaxDataPoints
}
if c.Security.RateLimiting.RequestsPerMinute < 1 {
return ErrInvalidRateLimit
}
return nil
}
