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Improve TLS state handling and add SCRAM-SHA-256 auth support
Replaced direct TLSConnectionState call with error handling for TLS state retrieval. Introduced SCRAM-SHA-256 support in the SMTP authentication process.
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parent
3013975c6a
commit
27838f5b1f
1 changed files with 10 additions and 7 deletions
17
client.go
17
client.go
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@ -748,7 +748,11 @@ func (c *Client) tls() error {
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return err
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}
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}
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_, c.isEncrypted = c.smtpClient.TLSConnectionState()
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tlsConnState, err := c.smtpClient.GetTLSConnectionState()
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if err != nil {
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return fmt.Errorf("failed to get TLS connection state: %w", err)
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}
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c.isEncrypted = tlsConnState.HandshakeComplete
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}
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return nil
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}
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@ -790,6 +794,11 @@ func (c *Client) auth() error {
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return ErrXOauth2AuthNotSupported
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}
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c.smtpAuth = smtp.ScramSHA1Auth(c.user, c.pass)
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case SMTPAuthSCRAMSHA256:
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if !strings.Contains(smtpAuthType, string(SMTPAuthSCRAMSHA256)) {
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return ErrXOauth2AuthNotSupported
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}
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c.smtpAuth = smtp.ScramSHA256Auth(c.user, c.pass)
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case SMTPAuthSCRAMSHA1PLUS:
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if !strings.Contains(smtpAuthType, string(SMTPAuthSCRAMSHA1PLUS)) {
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return ErrXOauth2AuthNotSupported
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@ -799,11 +808,6 @@ func (c *Client) auth() error {
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return err
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}
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c.smtpAuth = smtp.ScramSHA1PlusAuth(c.user, c.pass, tlsConnState)
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case SMTPAuthSCRAMSHA256:
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if !strings.Contains(smtpAuthType, string(SMTPAuthSCRAMSHA256)) {
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return ErrXOauth2AuthNotSupported
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}
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c.smtpAuth = smtp.ScramSHA256Auth(c.user, c.pass)
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case SMTPAuthSCRAMSHA256PLUS:
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if !strings.Contains(smtpAuthType, string(SMTPAuthSCRAMSHA256PLUS)) {
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return ErrXOauth2AuthNotSupported
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@ -813,7 +817,6 @@ func (c *Client) auth() error {
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return err
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}
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c.smtpAuth = smtp.ScramSHA256PlusAuth(c.user, c.pass, tlsConnState)
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default:
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return fmt.Errorf("unsupported SMTP AUTH type %q", c.smtpAuthType)
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}
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