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package smtp
import (
"github.com/nicholas-fedor/shoutrrr/internal/failures"
)
const (
// FailUnknown is the default FailureID.
FailUnknown failures.FailureID = iota
// FailGetSMTPClient is returned when a SMTP client could not be created.
FailGetSMTPClient
// FailEnableStartTLS is returned when failing to enable StartTLS.
FailEnableStartTLS
// FailAuthType is returned when the Auth type could not be identified.
FailAuthType
// FailAuthenticating is returned when the authentication fails.
FailAuthenticating
// FailSendRecipient is returned when sending to a recipient fails.
FailSendRecipient
// FailClosingSession is returned when the server doesn't accept the QUIT command.
FailClosingSession
// FailPlainHeader is returned when the text/plain multipart header could not be set.
FailPlainHeader
// FailHTMLHeader is returned when the text/html multipart header could not be set.
FailHTMLHeader
// FailMultiEndHeader is returned when the multipart end header could not be set.
FailMultiEndHeader
// FailMessageTemplate is returned when the message template could not be written to the stream.
FailMessageTemplate
// FailMessageRaw is returned when a non-templated message could not be written to the stream.
FailMessageRaw
// FailSetSender is returned when the server didn't accept the sender address.
FailSetSender
// FailSetRecipient is returned when the server didn't accept the recipient address.
FailSetRecipient
// FailOpenDataStream is returned when the server didn't accept the data stream.
FailOpenDataStream
// FailWriteHeaders is returned when the headers could not be written to the data stream.
FailWriteHeaders
// FailCloseDataStream is returned when the server didn't accept the data stream contents.
FailCloseDataStream
// FailConnectToServer is returned when the TCP connection to the server failed.
FailConnectToServer
// FailCreateSMTPClient is returned when the smtp.Client initialization failed.
FailCreateSMTPClient
// FailApplySendParams is returned when updating the send config failed.
FailApplySendParams
// FailHandshake is returned when the initial HELLO handshake returned an error.
FailHandshake
)
// failure is an interface for SMTP-specific errors, implementing failures.Failure
// to provide detailed error messages and IDs for debugging within the shoutrrr framework.
type failure interface {
failures.Failure
}
// fail creates an SMTP-specific failure with a descriptive message and ID,
// wrapping the provided error and optional arguments for additional context.
func fail(failureID failures.FailureID, err error, args ...any) failure {
var msg string
switch failureID {
case FailGetSMTPClient:
msg = "error getting SMTP client"
case FailConnectToServer:
msg = "error connecting to server"
case FailCreateSMTPClient:
msg = "error creating smtp client"
case FailEnableStartTLS:
msg = "error enabling StartTLS"
case FailAuthenticating:
msg = "error authenticating"
case FailAuthType:
msg = "invalid authorization method '%s'"
case FailSendRecipient:
msg = "error sending message to recipient %q"
case FailClosingSession:
msg = "error closing session"
case FailPlainHeader:
msg = "error writing plain header"
case FailHTMLHeader:
msg = "error writing HTML header"
case FailMultiEndHeader:
msg = "error writing multipart end header"
case FailMessageTemplate:
msg = "error applying message template"
case FailMessageRaw:
msg = "error writing message"
case FailSetSender:
msg = "error creating new message"
case FailSetRecipient:
msg = "error setting RCPT"
case FailOpenDataStream:
msg = "error creating message stream"
case FailWriteHeaders:
msg = "error writing message headers"
case FailCloseDataStream:
msg = "error closing message stream"
case FailApplySendParams:
msg = "error applying params to send config"
case FailHandshake:
msg = "server did not accept the handshake"
// case FailUnknown:
default:
msg = "an unknown error occurred"
}
return failures.Wrap(msg, failureID, err, args...)
}
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