198 lines
4.2 KiB
Rust
198 lines
4.2 KiB
Rust
use instant_smtp::{Command, Response};
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use nom::FindSubstring;
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fn parse_trace(mut trace: &[u8]) {
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let (rem, greeting) = Response::parse_greeting(trace).unwrap();
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println!("S: {:?}", greeting);
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trace = rem;
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loop {
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if trace.is_empty() {
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break;
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}
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let (rem, cmd) = Command::from_bytes(trace).unwrap();
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println!("C: {:?}", cmd);
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trace = rem;
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match cmd {
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Command::Ehlo { .. } => {
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let (rem, rsp) = Response::parse_ehlo(trace).unwrap();
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println!("S: {:?}", rsp);
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trace = rem;
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}
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Command::Data { .. } => {
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let (rem, rsp) = Response::parse_other(trace).unwrap();
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println!("S: {:?}", rsp);
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trace = rem;
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let pos = trace.find_substring("\r\n.\r\n").unwrap();
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let (data, rem) = trace.split_at(pos + 5);
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println!("C (data): <{}>", std::str::from_utf8(data).unwrap());
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trace = rem;
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let (rem, rsp) = Response::parse_other(trace).unwrap();
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println!("S: {:?}", rsp);
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trace = rem;
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}
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_ => {
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let (rem, rsp) = Response::parse_other(trace).unwrap();
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println!("S: {:?}", rsp);
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trace = rem;
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}
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}
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}
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}
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#[test]
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/// D.1. A Typical SMTP Transaction Scenario
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fn test_trace_d_1() {
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let trace = b"\
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220 foo.com Simple Mail Transfer Service Ready\r
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EHLO bar.com\r
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250-foo.com greets bar.com\r
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250-8BITMIME\r
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250-SIZE\r
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250-DSN\r
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250 HELP\r
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MAIL FROM:<Smith@bar.com>\r
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250 OK\r
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RCPT TO:<Jones@foo.com>\r
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250 OK\r
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RCPT TO:<Green@foo.com>\r
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550 No such user here\r
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RCPT TO:<Brown@foo.com>\r
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250 OK\r
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DATA\r
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354 Start mail input; end with <CRLF>.<CRLF>\r
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Blah blah blah...\r
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...etc. etc. etc.\r
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.\r
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250 OK\r
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QUIT\r
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221 foo.com Service closing transmission channel\r
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";
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parse_trace(trace);
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}
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#[test]
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/// D.2. Aborted SMTP Transaction Scenario
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fn test_trace_d_2() {
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let trace = b"\
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220 foo.com Simple Mail Transfer Service Ready\r
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EHLO bar.com\r
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250-foo.com greets bar.com\r
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250-8BITMIME\r
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250-SIZE\r
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250-DSN\r
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250 HELP\r
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MAIL FROM:<Smith@bar.com>\r
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250 OK\r
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RCPT TO:<Jones@foo.com>\r
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250 OK\r
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RCPT TO:<Green@foo.com>\r
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550 No such user here\r
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RSET\r
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250 OK\r
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QUIT\r
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221 foo.com Service closing transmission channel\r
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";
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parse_trace(trace);
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}
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#[test]
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/// D.3. Relayed Mail Scenario
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fn test_trace_d_3() {
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let step_1 = b"\
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220 foo.com Simple Mail Transfer Service Ready\r
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EHLO bar.com\r
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250-foo.com greets bar.com\r
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250-8BITMIME\r
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250-SIZE\r
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250-DSN\r
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250 HELP\r
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MAIL FROM:<JQP@bar.com>\r
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250 OK\r
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RCPT TO:<Jones@XYZ.COM>\r
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250 OK\r
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DATA\r
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354 Start mail input; end with <CRLF>.<CRLF>\r
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Date: Thu, 21 May 1998 05:33:29 -0700\r
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From: John Q. Public <JQP@bar.com>\r
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Subject: The Next Meeting of the Board\r
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To: Jones@xyz.com\r
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\r
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Bill:\r
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The next meeting of the board of directors will be\r
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on Tuesday.\r
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John.\r
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.\r
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250 OK\r
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QUIT\r
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221 foo.com Service closing transmission channel\r
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";
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let step_2 = b"\
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220 xyz.com Simple Mail Transfer Service Ready\r
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EHLO foo.com\r
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250 xyz.com is on the air\r
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MAIL FROM:<JQP@bar.com>\r
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250 OK\r
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RCPT TO:<Jones@XYZ.COM>\r
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250 OK\r
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DATA\r
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354 Start mail input; end with <CRLF>.<CRLF>\r
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Received: from bar.com by foo.com ; Thu, 21 May 1998\r
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05:33:29 -0700\r
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Date: Thu, 21 May 1998 05:33:22 -0700\r
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From: John Q. Public <JQP@bar.com>\r
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Subject: The Next Meeting of the Board\r
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To: Jones@xyz.com\r
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\r
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Bill:\r
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The next meeting of the board of directors will be\r
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on Tuesday.\r
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John.\r
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.\r
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250 OK\r
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QUIT\r
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221 foo.com Service closing transmission channel\r
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";
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parse_trace(step_1);
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parse_trace(step_2);
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}
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#[test]
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/// D.4. Verifying and Sending Scenario
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fn test_trace_d_4() {
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let trace = b"\
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220 foo.com Simple Mail Transfer Service Ready\r
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EHLO bar.com\r
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250-foo.com greets bar.com\r
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250-8BITMIME\r
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250-SIZE\r
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250-DSN\r
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250-VRFY\r
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250 HELP\r
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VRFY Crispin\r
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250 Mark Crispin <Admin.MRC@foo.com>\r
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MAIL FROM:<EAK@bar.com>\r
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250 OK\r
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RCPT TO:<Admin.MRC@foo.com>\r
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250 OK\r
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DATA\r
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354 Start mail input; end with <CRLF>.<CRLF>\r
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Blah blah blah...\r
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...etc. etc. etc.\r
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.\r
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250 OK\r
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QUIT\r
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221 foo.com Service closing transmission channel\r
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";
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parse_trace(trace);
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}
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