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//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
//
use miette::Context;
use crate::{
behaviour_test::BehaviourTest,
command::{Input, Output},
executable::ClientExecutableCommand,
report::ReportResult,
};
pub struct WaitForConnect;
#[async_trait::async_trait]
impl BehaviourTest for WaitForConnect {
fn commands(&self) -> Vec<Box<dyn ClientExecutableCommand>> {
vec![]
}
#[tracing::instrument(skip_all)]
async fn execute(
&self,
_input: Input,
mut output: Output,
) -> Result<ReportResult, miette::Error> {
let check_result = output
.wait_and_check(
&(|bytes: &[u8]| -> bool {
let connect_flags = if let Some(flags) = find_connect_flags(bytes) {
flags
} else {
return false;
};
tracing::trace!(?connect_flags, "Connect flags");
let username_flag_set = 0 != (connect_flags & 0b1000_0000); // Username flag
let password_flag_set = 0 != (connect_flags & 0b0100_0000); // Username flag
tracing::trace!(?username_flag_set, "username flag");
tracing::trace!(?password_flag_set, "password flag");
if username_flag_set {
!password_flag_set
} else {
true
}
}),
)
.await
.context("Waiting for bytes to check")?;
tracing::trace!(?check_result, "result of check");
Ok(check_result)
}
fn report_name(&self) -> &str {
"Wait for client to connect"
}
fn report_desc(&self) -> &str {
"A client should send a CONNECT packet to connect to the server"
}
fn report_normative(&self) -> &str {
"none"
}
fn translate_client_exit_code(&self, success: bool) -> ReportResult {
if success {
ReportResult::Success
} else {
ReportResult::Failure
}
}
}
fn find_connect_flags(bytes: &[u8]) -> Option<u8> {
macro_rules! getbyte {
($n:tt) => {
if let Some(b) = bytes.get($n) {
*b
} else {
return None;
}
};
}
if getbyte!(0) != 0b0001_0000 {
tracing::trace!("Not a CONNECT packet");
return None;
}
let str_len = getbyte!(3);
tracing::trace!(?str_len, "Length of protocol name");
let connect_flag_position = 4usize + (str_len as usize) + 2;
tracing::trace!(?connect_flag_position, "Position of CONNECT flags");
let flags = getbyte!(connect_flag_position);
tracing::trace!(?flags, "CONNECT flags");
Some(flags)
}
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