fix "fetch x rfc822"

close #33

1 files changed, 135 insertions, 31 deletions

diff --git a/tests/imap_features.rs b/tests/imap_features.rs
index 59892b2..3e4d1a9 100644
--- a/tests/imap_features.rs
+++ b/tests/imap_features.rs
@@ -1,10 +1,54 @@
 use std::process::Command;
 use std::net::{Shutdown, TcpStream};
 use std::{thread, time};
-use anyhow::Result;
+use anyhow::{bail, Result};
 use std::io::{Write, Read};
 
-static ONE_SEC: time::Duration = time::Duration::from_secs(1);
+static SMALL_DELAY: time::Duration = time::Duration::from_millis(200);
+static EMAIL: &[u8] = b"Date: Sat, 8 Jul 2023 07:14:29 +0200\r
+From: Bob Robert <bob@example.tld>\r
+To: Alice Malice <alice@example.tld>\r
+CC: =?ISO-8859-1?Q?Andr=E9?= Pirard <PIRARD@vm1.ulg.ac.be>\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: <NTAxNzA2AC47634Y366BAMTY4ODc5MzQyODY0ODY5@www.grrrndzero.org>\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
+<div style=\"text-align: center;\"><strong>GZ</strong><br />\r
+OoOoO<br />\r
+oOoOoOoOo<br />\r
+oOoOoOoOoOoOoOoOo<br />\r
+oOoOoOoOoOoOoOoOoOoOoOo<br />\r
+oOoOoOoOoOoOoOoOoOoOoOoOoOoOo<br />\r
+OoOoOoOoOoOoOoOoOoOoOoOoOoOoOoOoO<br />\r
+</div>\r
+\r
+--b1_e376dc71bafc953c0b0fdeb9983a9956--\r
+";
+
 
 fn main() {
     let mut daemon = Command::new(env!("CARGO_BIN_EXE_aerogramme"))
@@ -14,7 +58,7 @@ fn main() {
         .spawn()
         .expect("daemon should be started");
 
-    let mut max_retry = 10;
+    let mut max_retry = 20;
     let mut imap_socket = loop {
         max_retry -= 1;
         match (TcpStream::connect("[::1]:1143"), max_retry) {
@@ -24,7 +68,7 @@ fn main() {
             },
             (Ok(v), _) => break v,
         }
-        thread::sleep(ONE_SEC);
+        thread::sleep(SMALL_DELAY);
     };
 
     let mut lmtp_socket = TcpStream::connect("[::1]:1025").expect("lmtp socket must be connected");
@@ -32,7 +76,10 @@ fn main() {
     println!("-- ready to test imap features --");
     login(&mut imap_socket).expect("login test");
     select_inbox(&mut imap_socket).expect("select inbox");
-    inject_email(&mut lmtp_socket).expect("inject email");
+    lmtp_handshake(&mut lmtp_socket).expect("handshake lmtp done");
+    lmtp_deliver_email(&mut lmtp_socket, EMAIL).expect("mail delivered successfully");
+    noop_exists(&mut imap_socket).expect("noop loop must detect a new email");
+    fetch_rfc822(&mut imap_socket, EMAIL).expect("fecth rfc822 message");
 
     println!("-- test teardown --");
 
@@ -43,28 +90,14 @@ fn main() {
 
 fn login(imap: &mut TcpStream) -> Result<()> {
     let mut buffer: [u8; 1500] = [0; 1500];
-    let mut nbytes = 0;
-    loop {
-        nbytes += imap.read(&mut buffer)?;
-        if buffer[..nbytes].windows(2).any(|w| w == &b"\r\n"[..]) {
-            break
-        }
-    }
-    println!("read: {}", std::str::from_utf8(&buffer[..nbytes])?);
-    assert_eq!(&buffer[..4], &b"* OK"[..]);
-    assert_eq!(&buffer[nbytes-2..nbytes], &b"\r\n"[..]);
+
+    let read = read_lines(imap, &mut buffer, None)?;
+    assert_eq!(&read[..4], &b"* OK"[..]);
 
     imap.write(&b"10 login alice hunter2\r\n"[..])?;
 
-    let mut nbytes = 0;
-    loop {
-        nbytes += imap.read(&mut buffer)?;
-        if &buffer[nbytes-2..nbytes] == &b"\r\n"[..] {
-            break
-        }
-    }
-    println!("read: {}", std::str::from_utf8(&buffer[..nbytes])?);
-    assert_eq!(&buffer[..5], &b"10 OK"[..]);
+    let read = read_lines(imap, &mut buffer, None)?;
+    assert_eq!(&read[..5], &b"10 OK"[..]);
 
     Ok(())
 }
@@ -73,20 +106,91 @@ 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"[..]))?;
 
-    let mut nbytes = 0;
+    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:<bob@example.tld>\r\n"[..])?;
+    let _read = read_lines(lmtp, &mut buffer, Some(&b"250 2.0.0"[..]))?;
+
+    lmtp.write(&b"RCPT TO:<alice@example.tld>\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 {
-        nbytes += imap.read(&mut buffer)?;
-        if buffer[..nbytes].windows(5).any(|w| w == &b"20 OK"[..]) && &buffer[nbytes-2..nbytes] == &b"\r\n"[..] {
-            break
+        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"),
+            _ => (),
         }
-    }
-    println!("read: {}", std::str::from_utf8(&buffer[..nbytes])?);
+        
+        thread::sleep(SMALL_DELAY);
+    };
 
     Ok(())
 }
 
-fn inject_email(lmtp: &mut TcpStream) -> Result<()> {
+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 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..])?;
+        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])
+}