51 lines
1017 B
Go
51 lines
1017 B
Go
package mailer
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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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Host string
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Port int
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Username string
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Password string
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From string
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StartTLS bool
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}
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func ConfigFromEnv() (Config, error) {
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var cfg Config
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cfg.Host = strings.TrimSpace(os.Getenv("SMTP_HOST"))
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cfg.Username = strings.TrimSpace(os.Getenv("SMTP_USERNAME"))
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cfg.Password = os.Getenv("SMTP_PASSWORD")
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cfg.From = strings.TrimSpace(os.Getenv("SMTP_FROM"))
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portStr := strings.TrimSpace(os.Getenv("SMTP_PORT"))
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if portStr == "" {
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cfg.Port = 587
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} else {
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p, err := strconv.Atoi(portStr)
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if err != nil {
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return Config{}, err
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}
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cfg.Port = p
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}
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startTLS := strings.TrimSpace(os.Getenv("SMTP_STARTTLS"))
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if startTLS == "" {
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cfg.StartTLS = true
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} else {
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cfg.StartTLS = strings.EqualFold(startTLS, "true") || startTLS == "1"
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}
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// minimal validation
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if cfg.Host == "" || cfg.Username == "" || cfg.Password == "" || cfg.From == "" || cfg.Port <= 0 {
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return Config{}, ErrInvalidConfig
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}
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return cfg, nil
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}
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