486cc5fa52
Subsystem for message processing: parses messages, generates LLM responses, and replies with SMTP. Introduces: - answer: message processing worker. - llm: OpenAI API compatible client with support for tool execution. - message: message parsing and response logic. - tool: converts YAML configuration into executable subprocesses. - smtp: simple config and client wrapper for sending email.
67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
// Package smtp provides a config wrapper around net/smtp for sending email.
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package smtp
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import (
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"fmt"
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"net/mail"
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"net/smtp"
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)
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// SMTP holds configuration for sending emails via an SMTP server.
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type SMTP struct {
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From string `yaml:"from"`
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Host string `yaml:"host"`
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Password string `yaml:"password"`
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Port string `yaml:"port"`
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User string `yaml:"user"`
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}
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// Address returns the host:port string.
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func (s *SMTP) Address() string {
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return fmt.Sprintf("%s:%s", s.Host, s.Port)
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}
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// Auth creates a PlainAuth using the configured credentials.
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func (s *SMTP) Auth() smtp.Auth {
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return smtp.PlainAuth("", s.User, s.Password, s.Host)
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}
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// Send emails the given recipients using net/smtp.
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// Refer to smtp.SendMail for its parameters and limitations.
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func (s *SMTP) Send(to []string, msg []byte) error {
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if err := smtp.SendMail(
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s.Address(),
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s.Auth(),
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s.From,
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to,
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msg,
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); err != nil {
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return fmt.Errorf("smtp send: %w", err)
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}
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return nil
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}
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// Validate checks that all required configuration fields are set.
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func (s *SMTP) Validate() error {
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if s.From == "" {
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return fmt.Errorf("missing from")
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}
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if _, err := mail.ParseAddress(s.From); err != nil {
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return fmt.Errorf("invalid from: %w", err)
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}
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if s.Host == "" {
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return fmt.Errorf("missing host")
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}
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if s.Password == "" {
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return fmt.Errorf("missing password")
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}
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if s.Port == "" {
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return fmt.Errorf("missing port")
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}
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if s.User == "" {
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return fmt.Errorf("missing user")
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}
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return nil
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}
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