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Add support for sendmail as a mail transport

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This commit is contained in:
soruh
2023-02-12 18:53:55 +01:00
parent 0c295d5e6e
commit b7c4316c77
4 changed files with 119 additions and 47 deletions
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95
src/mail.rs
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@@ -8,7 +8,7 @@ use lettre::{
transport::smtp::authentication::{Credentials, Mechanism as SmtpAuthMechanism},
transport::smtp::client::{Tls, TlsParameters},
transport::smtp::extension::ClientId,
Address, AsyncSmtpTransport, AsyncTransport, Tokio1Executor,
Address, AsyncSendmailTransport, AsyncSmtpTransport, AsyncTransport, Tokio1Executor,
};
use crate::{
@@ -21,7 +21,15 @@ use crate::{
CONFIG,
};
fn mailer() -> AsyncSmtpTransport<Tokio1Executor> {
fn sendmail_transport() -> AsyncSendmailTransport<Tokio1Executor> {
if let Some(command) = CONFIG.sendmail_command() {
AsyncSendmailTransport::new_with_command(command)
} else {
AsyncSendmailTransport::new()
}
}
fn smtp_transport() -> AsyncSmtpTransport<Tokio1Executor> {
use std::time::Duration;
let host = CONFIG.smtp_host().unwrap();
@@ -509,6 +517,58 @@ pub async fn send_admin_reset_password(address: &str, user_name: &str, org_name:
send_email(address, &subject, body_html, body_text).await
}
async fn send_with_selected_transport(email: Message) -> EmptyResult {
if CONFIG.use_sendmail() {
match sendmail_transport().send(email).await {
Ok(_) => Ok(()),
// Match some common errors and make them more user friendly
Err(e) => {
if e.is_client() {
debug!("Sendmail client error: {:#?}", e);
err!(format!("Sendmail client error: {e}"));
} else if e.is_response() {
debug!("Sendmail response error: {:#?}", e);
err!(format!("Sendmail response error: {e}"));
} else {
debug!("Sendmail error: {:#?}", e);
err!(format!("Sendmail error: {e}"));
}
}
}
} else {
match smtp_transport().send(email).await {
Ok(_) => Ok(()),
// Match some common errors and make them more user friendly
Err(e) => {
if e.is_client() {
debug!("SMTP client error: {:#?}", e);
err!(format!("SMTP client error: {e}"));
} else if e.is_transient() {
debug!("SMTP 4xx error: {:#?}", e);
err!(format!("SMTP 4xx error: {e}"));
} else if e.is_permanent() {
debug!("SMTP 5xx error: {:#?}", e);
let mut msg = e.to_string();
// Add a special check for 535 to add a more descriptive message
if msg.contains("(535)") {
msg = format!("{msg} - Authentication credentials invalid");
}
err!(format!("SMTP 5xx error: {msg}"));
} else if e.is_timeout() {
debug!("SMTP timeout error: {:#?}", e);
err!(format!("SMTP timeout error: {e}"));
} else if e.is_tls() {
debug!("SMTP encryption error: {:#?}", e);
err!(format!("SMTP encryption error: {e}"));
} else {
debug!("SMTP error: {:#?}", e);
err!(format!("SMTP error: {e}"));
}
}
}
}
}
async fn send_email(address: &str, subject: &str, body_html: String, body_text: String) -> EmptyResult {
let smtp_from = &CONFIG.smtp_from();
@@ -538,34 +598,5 @@ async fn send_email(address: &str, subject: &str, body_html: String, body_text:
.subject(subject)
.multipart(body)?;
match mailer().send(email).await {
Ok(_) => Ok(()),
// Match some common errors and make them more user friendly
Err(e) => {
if e.is_client() {
debug!("SMTP Client error: {:#?}", e);
err!(format!("SMTP Client error: {e}"));
} else if e.is_transient() {
debug!("SMTP 4xx error: {:#?}", e);
err!(format!("SMTP 4xx error: {e}"));
} else if e.is_permanent() {
debug!("SMTP 5xx error: {:#?}", e);
let mut msg = e.to_string();
// Add a special check for 535 to add a more descriptive message
if msg.contains("(535)") {
msg = format!("{msg} - Authentication credentials invalid");
}
err!(format!("SMTP 5xx error: {msg}"));
} else if e.is_timeout() {
debug!("SMTP timeout error: {:#?}", e);
err!(format!("SMTP timeout error: {e}"));
} else if e.is_tls() {
debug!("SMTP Encryption error: {:#?}", e);
err!(format!("SMTP Encryption error: {e}"));
} else {
debug!("SMTP {:#?}", e);
err!(format!("SMTP {e}"));
}
}
}
send_with_selected_transport(email).await
}