124 lines
3.2 KiB
Go
124 lines
3.2 KiB
Go
package main
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import (
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"errors"
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"fmt"
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toml "github.com/pelletier/go-toml"
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)
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type Validation struct {
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Param string
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CmdFlag string
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ConfFlag string
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}
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type ServerConfig struct {
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Address string `toml:address,omitempty`
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Port int64 `toml:port,omitempty`
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Encryption bool `toml:encryption,omitempty`
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User string `toml:user,omitempty`
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Password string `toml:password,omitempty`
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}
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func (s ServerConfig) String() string {
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return fmt.Sprintf(
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"\tAddress: %s\n\tPort: %d\n\tEncryption: %t\n\tUser: %s\n\tPassword: %s\n",
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s.Address,
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s.Port,
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s.Encryption,
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s.User,
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s.Password,
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)
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}
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type Config struct {
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Server *ServerConfig `toml:server,omitempty`
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From string `toml:from,omitempty`
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To []string `toml:to,omitempty`
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Cc []string `toml:cc,omitempty`
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Bcc []string `toml:bcc,omitempty`
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Subject string `toml:subject,omitempty`
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Text string `toml:text,omitempty`
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}
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func (c Config) String() string {
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return fmt.Sprintf(
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"From: %s\nTo: %s\nCc: %s\nBcc: %s\nSubject: %s\nText:\n%s\nServer:\n%s",
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c.From,
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c.To,
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c.Cc,
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c.Bcc,
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c.Subject,
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c.Text,
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c.Server,
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)
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}
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func NewConfig() *Config {
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server := &ServerConfig{}
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config := &Config{}
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config.Server = server
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return config
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}
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func (s *ServerConfig) Merge(key string, value interface{}) {
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Merge(key, value, s)
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}
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func (c *Config) Merge(key string, value interface{}) {
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Merge(key, value, c)
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}
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func readConfig(configPath, section string) (*Config, error) {
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config := NewConfig()
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tree, err := toml.LoadFile(configPath)
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if err != nil {
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return config, err
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}
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keys := tree.Keys()
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if !IsPresent(keys, section) {
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return config, errors.New("missing section")
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}
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sub := tree.Get(section).(*toml.Tree)
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err = sub.Unmarshal(config)
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return config, err
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}
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func checkValidity(validations *[]Validation, obj interface{}, name, cmd, param string) {
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if IsEmpty(obj) {
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*validations = append(*validations, Validation{name, cmd, param})
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}
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}
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func (c *Config) Validate() error {
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var validations = []Validation{}
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var msg string
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checkValidity(&validations, c.Server.Address, "server address", "server-address", "server.address")
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checkValidity(&validations, c.Server.Port, "server port", "server-port", "server.port")
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if !c.Server.Encryption {
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Warning.Ln("Warning: not using encryption!")
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}
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checkValidity(&validations, c.Server.User, "username", "user", "server.user")
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checkValidity(&validations, c.Server.Password, "password", "password", "server.password")
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checkValidity(&validations, c.From, "from", "from", "from")
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checkValidity(&validations, c.To, "to", "to", "to")
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checkValidity(&validations, c.Subject, "subject", "sub", "subject")
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checkValidity(&validations, c.Text, "body", "", "text")
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Debug.F("Lengths:\n\tTo: %d\n\tCc: %d\n\tBcc: %d", len(c.To), len(c.Cc), len(c.Bcc))
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if len(validations) > 0 {
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for _, v := range validations {
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if v.CmdFlag == "" {
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msg += fmt.Sprintf("%s: pass a value either via stdin or in configuration file section (%s)\n", v.Param, v.ConfFlag)
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} else {
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msg += fmt.Sprintf("%s: pass a value either via command line (-%s) or in configuration file section (%s)\n", v.Param, v.CmdFlag, v.ConfFlag)
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}
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}
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return errors.New(msg)
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}
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return nil
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}
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