mirror of
https://github.com/wneessen/go-mail.git
synced 2024-11-24 22:50:49 +01:00
Refactor message sending logic
Consolidated the message sending logic into a single `sendSingleMsg` function to reduce duplication and improve code maintainability. This change simplifies the `Send` method in multiple Go version files by removing redundant code and calling the new helper function instead.
This commit is contained in:
parent
2e7156182a
commit
277ae9be19
GPG key ID:
385AC9889632126E
3 changed files with 77 additions and 172 deletions
75
client.go
75
client.go
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@ -787,3 +787,78 @@ func (c *Client) auth() error {
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}
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return nil
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}
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// sendSingleMsg sends out a single message and returns an error if the transmission/delivery fails.
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// It is invoked by the public Send methods
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func (c *Client) sendSingleMsg(message *Msg) error {
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if message.encoding == NoEncoding {
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if ok, _ := c.smtpClient.Extension("8BITMIME"); !ok {
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return &SendError{Reason: ErrNoUnencoded, isTemp: false}
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}
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}
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from, err := message.GetSender(false)
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if err != nil {
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return &SendError{Reason: ErrGetSender, errlist: []error{err}, isTemp: isTempError(err),
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affectedMsg: message}
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}
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rcpts, err := message.GetRecipients()
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if err != nil {
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return &SendError{Reason: ErrGetRcpts, errlist: []error{err}, isTemp: isTempError(err),
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affectedMsg: message}
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}
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if c.dsn {
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if c.dsnmrtype != "" {
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c.smtpClient.SetDSNMailReturnOption(string(c.dsnmrtype))
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}
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}
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if err = c.smtpClient.Mail(from); err != nil {
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retError := &SendError{Reason: ErrSMTPMailFrom, errlist: []error{err}, isTemp: isTempError(err)}
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if resetSendErr := c.smtpClient.Reset(); resetSendErr != nil {
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retError.errlist = append(retError.errlist, resetSendErr)
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}
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return retError
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}
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hasError := false
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rcptSendErr := &SendError{}
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rcptSendErr.errlist = make([]error, 0)
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rcptSendErr.rcpt = make([]string, 0)
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rcptNotifyOpt := strings.Join(c.dsnrntype, ",")
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c.smtpClient.SetDSNRcptNotifyOption(rcptNotifyOpt)
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for _, rcpt := range rcpts {
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if err = c.smtpClient.Rcpt(rcpt); err != nil {
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rcptSendErr.Reason = ErrSMTPRcptTo
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rcptSendErr.errlist = append(rcptSendErr.errlist, err)
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rcptSendErr.rcpt = append(rcptSendErr.rcpt, rcpt)
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rcptSendErr.isTemp = isTempError(err)
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hasError = true
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}
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}
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if hasError {
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if resetSendErr := c.smtpClient.Reset(); resetSendErr != nil {
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rcptSendErr.errlist = append(rcptSendErr.errlist, resetSendErr)
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}
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return rcptSendErr
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}
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writer, err := c.smtpClient.Data()
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if err != nil {
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return &SendError{Reason: ErrSMTPData, errlist: []error{err}, isTemp: isTempError(err)}
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}
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_, err = message.WriteTo(writer)
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if err != nil {
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return &SendError{Reason: ErrWriteContent, errlist: []error{err}, isTemp: isTempError(err)}
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}
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message.isDelivered = true
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if err = writer.Close(); err != nil {
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return &SendError{Reason: ErrSMTPDataClose, errlist: []error{err}, isTemp: isTempError(err)}
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}
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if err = c.Reset(); err != nil {
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return &SendError{Reason: ErrSMTPReset, errlist: []error{err}, isTemp: isTempError(err)}
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}
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if err = c.checkConn(); err != nil {
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return &SendError{Reason: ErrConnCheck, errlist: []error{err}, isTemp: isTempError(err)}
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}
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return nil
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}
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@ -7,8 +7,6 @@
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package mail
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import "strings"
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// Send sends out the mail message
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func (c *Client) Send(messages ...*Msg) error {
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if cerr := c.checkConn(); cerr != nil {
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@ -16,101 +14,9 @@ func (c *Client) Send(messages ...*Msg) error {
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}
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var errs []*SendError
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for _, message := range messages {
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message.sendError = nil
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if message.encoding == NoEncoding {
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if ok, _ := c.smtpClient.Extension("8BITMIME"); !ok {
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sendErr := &SendError{Reason: ErrNoUnencoded, isTemp: false}
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message.sendError = sendErr
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if sendErr := c.sendSingleMsg(message); sendErr != nil {
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messages[id].sendError = sendErr
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errs = append(errs, sendErr)
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continue
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}
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}
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from, err := message.GetSender(false)
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if err != nil {
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sendErr := &SendError{Reason: ErrGetSender, errlist: []error{err}, isTemp: isTempError(err)}
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message.sendError = sendErr
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errs = append(errs, sendErr)
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continue
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}
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rcpts, err := message.GetRecipients()
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if err != nil {
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sendErr := &SendError{Reason: ErrGetRcpts, errlist: []error{err}, isTemp: isTempError(err)}
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message.sendError = sendErr
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errs = append(errs, sendErr)
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continue
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}
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if c.dsn {
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if c.dsnmrtype != "" {
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c.smtpClient.SetDSNMailReturnOption(string(c.dsnmrtype))
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}
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}
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if err = c.smtpClient.Mail(from); err != nil {
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sendErr := &SendError{Reason: ErrSMTPMailFrom, errlist: []error{err}, isTemp: isTempError(err)}
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if resetSendErr := c.smtpClient.Reset(); resetSendErr != nil {
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sendErr.errlist = append(sendErr.errlist, resetSendErr)
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}
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message.sendError = sendErr
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errs = append(errs, sendErr)
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continue
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}
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failed := false
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rcptSendErr := &SendError{}
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rcptSendErr.errlist = make([]error, 0)
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rcptSendErr.rcpt = make([]string, 0)
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rcptNotifyOpt := strings.Join(c.dsnrntype, ",")
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c.smtpClient.SetDSNRcptNotifyOption(rcptNotifyOpt)
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for _, rcpt := range rcpts {
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if err = c.smtpClient.Rcpt(rcpt); err != nil {
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rcptSendErr.Reason = ErrSMTPRcptTo
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rcptSendErr.errlist = append(rcptSendErr.errlist, err)
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rcptSendErr.rcpt = append(rcptSendErr.rcpt, rcpt)
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rcptSendErr.isTemp = isTempError(err)
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failed = true
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}
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}
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if failed {
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if resetSendErr := c.smtpClient.Reset(); resetSendErr != nil {
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rcptSendErr.errlist = append(rcptSendErr.errlist, err)
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}
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message.sendError = rcptSendErr
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errs = append(errs, rcptSendErr)
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continue
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}
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writer, err := c.smtpClient.Data()
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if err != nil {
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sendErr := &SendError{Reason: ErrSMTPData, errlist: []error{err}, isTemp: isTempError(err)}
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message.sendError = sendErr
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errs = append(errs, sendErr)
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continue
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}
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_, err = message.WriteTo(writer)
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if err != nil {
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sendErr := &SendError{Reason: ErrWriteContent, errlist: []error{err}, isTemp: isTempError(err)}
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message.sendError = sendErr
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errs = append(errs, sendErr)
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continue
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}
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message.isDelivered = true
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if err = writer.Close(); err != nil {
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sendErr := &SendError{Reason: ErrSMTPDataClose, errlist: []error{err}, isTemp: isTempError(err)}
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message.sendError = sendErr
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errs = append(errs, sendErr)
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continue
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}
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if err = c.Reset(); err != nil {
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sendErr := &SendError{Reason: ErrSMTPReset, errlist: []error{err}, isTemp: isTempError(err)}
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message.sendError = sendErr
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errs = append(errs, sendErr)
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continue
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}
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if err = c.checkConn(); err != nil {
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sendErr := &SendError{Reason: ErrConnCheck, errlist: []error{err}, isTemp: isTempError(err)}
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message.sendError = sendErr
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errs = append(errs, sendErr)
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continue
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}
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}
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@ -9,7 +9,6 @@ package mail
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import (
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"errors"
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"strings"
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)
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// Send sends out the mail message
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@ -33,78 +32,3 @@ func (c *Client) Send(messages ...*Msg) (returnErr error) {
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return
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}
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// sendSingleMsg sends out a single message and returns an error if the transmission/delivery fails.
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// It is invoked by the public Send methods
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func (c *Client) sendSingleMsg(message *Msg) error {
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if message.encoding == NoEncoding {
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if ok, _ := c.smtpClient.Extension("8BITMIME"); !ok {
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return &SendError{Reason: ErrNoUnencoded, isTemp: false}
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}
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}
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from, err := message.GetSender(false)
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if err != nil {
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return &SendError{Reason: ErrGetSender, errlist: []error{err}, isTemp: isTempError(err),
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affectedMsg: message}
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}
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rcpts, err := message.GetRecipients()
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if err != nil {
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return &SendError{Reason: ErrGetRcpts, errlist: []error{err}, isTemp: isTempError(err),
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affectedMsg: message}
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}
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if c.dsn {
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if c.dsnmrtype != "" {
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c.smtpClient.SetDSNMailReturnOption(string(c.dsnmrtype))
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}
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}
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if err = c.smtpClient.Mail(from); err != nil {
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retError := &SendError{Reason: ErrSMTPMailFrom, errlist: []error{err}, isTemp: isTempError(err)}
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if resetSendErr := c.smtpClient.Reset(); resetSendErr != nil {
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retError.errlist = append(retError.errlist, resetSendErr)
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}
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return retError
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}
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hasError := false
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rcptSendErr := &SendError{}
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rcptSendErr.errlist = make([]error, 0)
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rcptSendErr.rcpt = make([]string, 0)
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rcptNotifyOpt := strings.Join(c.dsnrntype, ",")
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c.smtpClient.SetDSNRcptNotifyOption(rcptNotifyOpt)
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for _, rcpt := range rcpts {
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if err = c.smtpClient.Rcpt(rcpt); err != nil {
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rcptSendErr.Reason = ErrSMTPRcptTo
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rcptSendErr.errlist = append(rcptSendErr.errlist, err)
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rcptSendErr.rcpt = append(rcptSendErr.rcpt, rcpt)
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rcptSendErr.isTemp = isTempError(err)
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hasError = true
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}
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}
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if hasError {
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if resetSendErr := c.smtpClient.Reset(); resetSendErr != nil {
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rcptSendErr.errlist = append(rcptSendErr.errlist, resetSendErr)
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}
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return rcptSendErr
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}
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writer, err := c.smtpClient.Data()
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if err != nil {
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return &SendError{Reason: ErrSMTPData, errlist: []error{err}, isTemp: isTempError(err)}
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}
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_, err = message.WriteTo(writer)
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if err != nil {
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return &SendError{Reason: ErrWriteContent, errlist: []error{err}, isTemp: isTempError(err)}
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}
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message.isDelivered = true
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if err = writer.Close(); err != nil {
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return &SendError{Reason: ErrSMTPDataClose, errlist: []error{err}, isTemp: isTempError(err)}
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}
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if err = c.Reset(); err != nil {
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return &SendError{Reason: ErrSMTPReset, errlist: []error{err}, isTemp: isTempError(err)}
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}
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if err = c.checkConn(); err != nil {
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return &SendError{Reason: ErrConnCheck, errlist: []error{err}, isTemp: isTempError(err)}
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}
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return nil
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}
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