use anyhow::{bail, Context, Result}; use std::io::{Read, Write}; use std::net::TcpStream; use std::{thread, time}; mod common; static SMALL_DELAY: time::Duration = time::Duration::from_millis(200); static EMAIL1: &[u8] = b"Date: Sat, 8 Jul 2023 07:14:29 +0200\r From: Bob Robert \r To: Alice Malice \r CC: =?ISO-8859-1?Q?Andr=E9?= Pirard \r Subject: =?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?=\r =?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?=\r X-Unknown: something something\r Bad entry\r on multiple lines\r Message-ID: \r MIME-Version: 1.0\r Content-Type: multipart/alternative;\r boundary=\"b1_e376dc71bafc953c0b0fdeb9983a9956\"\r Content-Transfer-Encoding: 7bit\r \r This is a multi-part message in MIME format.\r \r --b1_e376dc71bafc953c0b0fdeb9983a9956\r Content-Type: text/plain; charset=utf-8\r Content-Transfer-Encoding: quoted-printable\r \r GZ\r OoOoO\r oOoOoOoOo\r oOoOoOoOoOoOoOoOo\r oOoOoOoOoOoOoOoOoOoOoOo\r oOoOoOoOoOoOoOoOoOoOoOoOoOoOo\r OoOoOoOoOoOoOoOoOoOoOoOoOoOoOoOoO\r \r --b1_e376dc71bafc953c0b0fdeb9983a9956\r Content-Type: text/html; charset=us-ascii\r \r
GZ
\r OoOoO
\r oOoOoOoOo
\r oOoOoOoOoOoOoOoOo
\r oOoOoOoOoOoOoOoOoOoOoOo
\r oOoOoOoOoOoOoOoOoOoOoOoOoOoOo
\r OoOoOoOoOoOoOoOoOoOoOoOoOoOoOoOoO
\r
\r \r --b1_e376dc71bafc953c0b0fdeb9983a9956--\r "; static EMAIL2: &[u8] = b"From: alice@example.com\r To: alice@example.tld\r Subject: Test\r \r Hello world!\r "; fn main() { common::aerogramme_provider_daemon_dev(|imap_socket, lmtp_socket| { connect(imap_socket).context("server says hello")?; capability(imap_socket).context("check server capabilities")?; login(imap_socket).context("login test")?; create_mailbox(imap_socket).context("created mailbox archive")?; // UNSUBSCRIBE IS NOT IMPLEMENTED YET //unsubscribe_mailbox(imap_socket).context("unsubscribe from archive")?; select_inbox(imap_socket).context("select inbox")?; check(imap_socket).context("check must run")?; status_mailbox(imap_socket).context("status of archive from inbox")?; lmtp_handshake(lmtp_socket).context("handshake lmtp done")?; lmtp_deliver_email(lmtp_socket, EMAIL1).context("mail delivered successfully")?; noop_exists(imap_socket).context("noop loop must detect a new email")?; fetch_rfc822(imap_socket, EMAIL1).context("fetch rfc822 message")?; copy_email(imap_socket).context("copy message to the archive mailbox")?; append_email(imap_socket, EMAIL2).context("insert email in INBOX")?; // SEARCH IS NOT IMPLEMENTED YET //search(imap_socket).expect("search should return something"); add_flags_email(imap_socket).context("should add delete and important flags to the email")?; expunge(imap_socket).context("expunge emails")?; rename_mailbox(imap_socket).context("archive mailbox is renamed my-archives")?; delete_mailbox(imap_socket).context("my-archives mailbox is deleted")?; Ok(()) }).expect("test fully run"); } fn connect(imap: &mut TcpStream) -> Result<()> { let mut buffer: [u8; 1500] = [0; 1500]; let read = read_lines(imap, &mut buffer, None)?; assert_eq!(&read[..4], &b"* OK"[..]); Ok(()) } fn capability(imap: &mut TcpStream) -> Result<()> { imap.write(&b"5 capability\r\n"[..])?; let mut buffer: [u8; 1500] = [0; 1500]; let read = read_lines(imap, &mut buffer, Some(&b"5 OK"[..]))?; let srv_msg = std::str::from_utf8(read)?; assert!(srv_msg.contains("IMAP4REV1")); Ok(()) } fn login(imap: &mut TcpStream) -> Result<()> { let mut buffer: [u8; 1500] = [0; 1500]; imap.write(&b"10 login alice hunter2\r\n"[..])?; let read = read_lines(imap, &mut buffer, None)?; assert_eq!(&read[..5], &b"10 OK"[..]); Ok(()) } fn create_mailbox(imap: &mut TcpStream) -> Result<()> { let mut buffer: [u8; 1500] = [0; 1500]; imap.write(&b"15 create archive\r\n"[..])?; let read = read_lines(imap, &mut buffer, None)?; assert_eq!(&read[..12], &b"15 OK CREATE"[..]); Ok(()) } #[allow(dead_code)] fn unsubscribe_mailbox(imap: &mut TcpStream) -> Result<()> { let mut buffer: [u8; 6000] = [0; 6000]; imap.write(&b"16 lsub \"\" *\r\n"[..])?; let read = read_lines(imap, &mut buffer, Some(&b"16 OK LSUB"[..]))?; let srv_msg = std::str::from_utf8(read)?; assert!(srv_msg.contains(" INBOX\r\n")); assert!(srv_msg.contains(" archive\r\n")); imap.write(&b"17 unsubscribe archive\r\n"[..])?; let read = read_lines(imap, &mut buffer, None)?; assert_eq!(&read[..5], &b"17 OK"[..]); imap.write(&b"18 lsub \"\" *\r\n"[..])?; let read = read_lines(imap, &mut buffer, Some(&b"18 OK LSUB"[..]))?; let srv_msg = std::str::from_utf8(read)?; assert!(srv_msg.contains(" INBOX\r\n")); assert!(!srv_msg.contains(" archive\r\n")); Ok(()) } fn select_inbox(imap: &mut TcpStream) -> Result<()> { let mut buffer: [u8; 6000] = [0; 6000]; imap.write(&b"20 select inbox\r\n"[..])?; let _read = read_lines(imap, &mut buffer, Some(&b"20 OK"[..]))?; Ok(()) } fn check(imap: &mut TcpStream) -> Result<()> { let mut buffer: [u8; 1500] = [0; 1500]; imap.write(&b"21 check\r\n"[..])?; let _read = read_lines(imap, &mut buffer, Some(&b"21 OK"[..]))?; Ok(()) } fn status_mailbox(imap: &mut TcpStream) -> Result<()> { imap.write(&b"25 STATUS archive (UIDNEXT MESSAGES)\r\n"[..])?; let mut buffer: [u8; 6000] = [0; 6000]; let _read = read_lines(imap, &mut buffer, Some(&b"25 OK"[..]))?; Ok(()) } fn lmtp_handshake(lmtp: &mut TcpStream) -> Result<()> { let mut buffer: [u8; 1500] = [0; 1500]; let _read = read_lines(lmtp, &mut buffer, None)?; assert_eq!(&buffer[..4], &b"220 "[..]); lmtp.write(&b"LHLO example.tld\r\n"[..])?; let _read = read_lines(lmtp, &mut buffer, Some(&b"250 "[..]))?; Ok(()) } fn lmtp_deliver_email(lmtp: &mut TcpStream, email: &[u8]) -> Result<()> { let mut buffer: [u8; 1500] = [0; 1500]; lmtp.write(&b"MAIL FROM:\r\n"[..])?; let _read = read_lines(lmtp, &mut buffer, Some(&b"250 2.0.0"[..]))?; lmtp.write(&b"RCPT TO:\r\n"[..])?; let _read = read_lines(lmtp, &mut buffer, Some(&b"250 2.1.5"[..]))?; lmtp.write(&b"DATA\r\n"[..])?; let _read = read_lines(lmtp, &mut buffer, Some(&b"354 "[..]))?; lmtp.write(email)?; lmtp.write(&b"\r\n.\r\n"[..])?; let _read = read_lines(lmtp, &mut buffer, Some(&b"250 2.0.0"[..]))?; Ok(()) } fn noop_exists(imap: &mut TcpStream) -> Result<()> { let mut buffer: [u8; 6000] = [0; 6000]; let mut max_retry = 20; loop { max_retry -= 1; imap.write(&b"30 NOOP\r\n"[..])?; let read = read_lines(imap, &mut buffer, Some(&b"30 OK NOOP"[..]))?; let srv_msg = std::str::from_utf8(read)?; match (max_retry, srv_msg.contains("* 1 EXISTS")) { (_, true) => break, (0, _) => bail!("no more retry"), _ => (), } thread::sleep(SMALL_DELAY); } Ok(()) } fn fetch_rfc822(imap: &mut TcpStream, ref_mail: &[u8]) -> Result<()> { let mut buffer: [u8; 65535] = [0; 65535]; imap.write(&b"40 fetch 1 rfc822\r\n"[..])?; let read = read_lines(imap, &mut buffer, Some(&b"40 OK FETCH"[..]))?; let srv_msg = std::str::from_utf8(read)?; let orig_email = std::str::from_utf8(ref_mail)?; assert!(srv_msg.contains(orig_email)); Ok(()) } fn copy_email(imap: &mut TcpStream) -> Result<()> { let mut buffer: [u8; 65535] = [0; 65535]; imap.write(&b"45 copy 1 archive\r\n"[..])?; let read = read_lines(imap, &mut buffer, None)?; assert_eq!(&read[..5], &b"45 OK"[..]); Ok(()) } fn append_email(imap: &mut TcpStream, ref_mail: &[u8]) -> Result<()> { let mut buffer: [u8; 6000] = [0; 6000]; assert_ne!(ref_mail.len(), 0); let append_cmd = format!("47 append inbox (\\Seen) {{{}}}\r\n", ref_mail.len()); println!("append cmd: {}", append_cmd); imap.write(append_cmd.as_bytes())?; // wait for continuation let read = read_lines(imap, &mut buffer, None)?; assert_eq!(read[0], b'+'); // write our stuff imap.write(ref_mail)?; imap.write(&b"\r\n"[..])?; let read = read_lines(imap, &mut buffer, None)?; assert_eq!(&read[..5], &b"47 OK"[..]); // noop to force a sync imap.write(&b"48 NOOP\r\n"[..])?; let _read = read_lines(imap, &mut buffer, Some(&b"48 OK NOOP"[..]))?; // check it is stored successfully imap.write(&b"49 fetch 2 rfc822.size\r\n"[..])?; let read = read_lines(imap, &mut buffer, Some(&b"49 OK"[..]))?; let expected = format!("* 2 FETCH (RFC822.SIZE {})", ref_mail.len()); let expbytes = expected.as_bytes(); assert_eq!(&read[..expbytes.len()], expbytes); Ok(()) } fn add_flags_email(imap: &mut TcpStream) -> Result<()> { let mut buffer: [u8; 1500] = [0; 1500]; imap.write(&b"50 store 1 +FLAGS (\\Deleted \\Important)\r\n"[..])?; let _read = read_lines(imap, &mut buffer, Some(&b"50 OK STORE"[..]))?; Ok(()) } #[allow(dead_code)] /// Not yet implemented fn search(imap: &mut TcpStream) -> Result<()> { imap.write(&b"55 search text \"OoOoO\"\r\n"[..])?; let mut buffer: [u8; 1500] = [0; 1500]; let _read = read_lines(imap, &mut buffer, Some(&b"55 OK SEARCH"[..]))?; Ok(()) } fn expunge(imap: &mut TcpStream) -> Result<()> { imap.write(&b"60 expunge\r\n"[..])?; let mut buffer: [u8; 1500] = [0; 1500]; let _read = read_lines(imap, &mut buffer, Some(&b"60 OK EXPUNGE"[..]))?; Ok(()) } fn rename_mailbox(imap: &mut TcpStream) -> Result<()> { imap.write(&b"70 rename archive my-archives\r\n"[..])?; let mut buffer: [u8; 1500] = [0; 1500]; let read = read_lines(imap, &mut buffer, None)?; assert_eq!(&read[..5], &b"70 OK"[..]); imap.write(&b"71 list \"\" *\r\n"[..])?; let read = read_lines(imap, &mut buffer, Some(&b"71 OK LIST"[..]))?; let srv_msg = std::str::from_utf8(read)?; assert!(!srv_msg.contains(" archive\r\n")); assert!(srv_msg.contains(" INBOX\r\n")); assert!(srv_msg.contains(" my-archives\r\n")); Ok(()) } fn delete_mailbox(imap: &mut TcpStream) -> Result<()> { imap.write(&b"80 delete my-archives\r\n"[..])?; let mut buffer: [u8; 1500] = [0; 1500]; let read = read_lines(imap, &mut buffer, None)?; assert_eq!(&read[..5], &b"80 OK"[..]); imap.write(&b"81 list \"\" *\r\n"[..])?; let read = read_lines(imap, &mut buffer, Some(&b"81 OK LIST"[..]))?; let srv_msg = std::str::from_utf8(read)?; assert!(!srv_msg.contains(" archive\r\n")); assert!(!srv_msg.contains(" my-archives\r\n")); assert!(srv_msg.contains(" INBOX\r\n")); Ok(()) } fn read_lines<'a, F: Read>( reader: &mut F, buffer: &'a mut [u8], stop_marker: Option<&[u8]>, ) -> Result<&'a [u8]> { let mut nbytes = 0; loop { nbytes += reader.read(&mut buffer[nbytes..])?; //println!("partial read: {}", std::str::from_utf8(&buffer[..nbytes])?); let pre_condition = match stop_marker { None => true, Some(mark) => buffer[..nbytes].windows(mark.len()).any(|w| w == mark), }; if pre_condition && &buffer[nbytes - 2..nbytes] == &b"\r\n"[..] { break; } } println!("read: {}", std::str::from_utf8(&buffer[..nbytes])?); Ok(&buffer[..nbytes]) }