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</pre></div><pre class="rust"><code><span class="kw">use </span>std::{
net,
rc::Rc,
time::{Duration, Instant},
};
<span class="kw">use </span>bytes::BytesMut;
<span class="kw">use crate</span>::{date::DateService, KeepAlive};
<span class="doccomment">/// HTTP service configuration.
</span><span class="attr">#[derive(Debug, Clone)]
</span><span class="kw">pub struct </span>ServiceConfig(Rc<Inner>);
<span class="attr">#[derive(Debug)]
</span><span class="kw">struct </span>Inner {
keep_alive: KeepAlive,
client_request_timeout: Duration,
client_disconnect_timeout: Duration,
secure: bool,
local_addr: <span class="prelude-ty">Option</span><std::net::SocketAddr>,
date_service: DateService,
}
<span class="kw">impl </span>Default <span class="kw">for </span>ServiceConfig {
<span class="kw">fn </span>default() -> <span class="self">Self </span>{
<span class="self">Self</span>::new(
KeepAlive::default(),
Duration::from_secs(<span class="number">5</span>),
Duration::ZERO,
<span class="bool-val">false</span>,
<span class="prelude-val">None</span>,
)
}
}
<span class="kw">impl </span>ServiceConfig {
<span class="doccomment">/// Create instance of `ServiceConfig`.
</span><span class="kw">pub fn </span>new(
keep_alive: KeepAlive,
client_request_timeout: Duration,
client_disconnect_timeout: Duration,
secure: bool,
local_addr: <span class="prelude-ty">Option</span><net::SocketAddr>,
) -> ServiceConfig {
ServiceConfig(Rc::new(Inner {
keep_alive: keep_alive.normalize(),
client_request_timeout,
client_disconnect_timeout,
secure,
local_addr,
date_service: DateService::new(),
}))
}
<span class="doccomment">/// Returns `true` if connection is secure (i.e., using TLS / HTTPS).
</span><span class="attr">#[inline]
</span><span class="kw">pub fn </span>secure(<span class="kw-2">&</span><span class="self">self</span>) -> bool {
<span class="self">self</span>.<span class="number">0</span>.secure
}
<span class="doccomment">/// Returns the local address that this server is bound to.
///
/// Returns `None` for connections via UDS (Unix Domain Socket).
</span><span class="attr">#[inline]
</span><span class="kw">pub fn </span>local_addr(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><net::SocketAddr> {
<span class="self">self</span>.<span class="number">0</span>.local_addr
}
<span class="doccomment">/// Connection keep-alive setting.
</span><span class="attr">#[inline]
</span><span class="kw">pub fn </span>keep_alive(<span class="kw-2">&</span><span class="self">self</span>) -> KeepAlive {
<span class="self">self</span>.<span class="number">0</span>.keep_alive
}
<span class="doccomment">/// Creates a time object representing the deadline for this connection's keep-alive period, if
/// enabled.
///
/// When [`KeepAlive::Os`] or [`KeepAlive::Disabled`] is set, this will return `None`.
</span><span class="kw">pub fn </span>keep_alive_deadline(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Instant> {
<span class="kw">match </span><span class="self">self</span>.keep_alive() {
KeepAlive::Timeout(dur) => <span class="prelude-val">Some</span>(<span class="self">self</span>.now() + dur),
KeepAlive::Os => <span class="prelude-val">None</span>,
KeepAlive::Disabled => <span class="prelude-val">None</span>,
}
}
<span class="doccomment">/// Creates a time object representing the deadline for the client to finish sending the head of
/// its first request.
///
/// Returns `None` if this `ServiceConfig was` constructed with `client_request_timeout: 0`.
</span><span class="kw">pub fn </span>client_request_deadline(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Instant> {
<span class="kw">let </span>timeout = <span class="self">self</span>.<span class="number">0</span>.client_request_timeout;
(timeout != Duration::ZERO).then(|| <span class="self">self</span>.now() + timeout)
}
<span class="doccomment">/// Creates a time object representing the deadline for the client to disconnect.
</span><span class="kw">pub fn </span>client_disconnect_deadline(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Instant> {
<span class="kw">let </span>timeout = <span class="self">self</span>.<span class="number">0</span>.client_disconnect_timeout;
(timeout != Duration::ZERO).then(|| <span class="self">self</span>.now() + timeout)
}
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>now(<span class="kw-2">&</span><span class="self">self</span>) -> Instant {
<span class="self">self</span>.<span class="number">0</span>.date_service.now()
}
<span class="doccomment">/// Writes date header to `dst` buffer.
///
/// Low-level method that utilizes the built-in efficient date service, requiring fewer syscalls
/// than normal. Note that a CRLF (`\r\n`) is included in what is written.
</span><span class="attr">#[doc(hidden)]
</span><span class="kw">pub fn </span>write_date_header(<span class="kw-2">&</span><span class="self">self</span>, dst: <span class="kw-2">&mut </span>BytesMut, camel_case: bool) {
<span class="kw">let </span><span class="kw-2">mut </span>buf: [u8; <span class="number">37</span>] = [<span class="number">0</span>; <span class="number">37</span>];
buf[..<span class="number">6</span>].copy_from_slice(<span class="kw">if </span>camel_case { <span class="string">b"Date: " </span>} <span class="kw">else </span>{ <span class="string">b"date: " </span>});
<span class="self">self</span>.<span class="number">0
</span>.date_service
.with_date(|date| buf[<span class="number">6</span>..<span class="number">35</span>].copy_from_slice(<span class="kw-2">&</span>date.bytes));
buf[<span class="number">35</span>..].copy_from_slice(<span class="string">b"\r\n"</span>);
dst.extend_from_slice(<span class="kw-2">&</span>buf);
}
<span class="attr">#[allow(unused)] </span><span class="comment">// used with `http2` feature flag
</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>write_date_header_value(<span class="kw-2">&</span><span class="self">self</span>, dst: <span class="kw-2">&mut </span>BytesMut) {
<span class="self">self</span>.<span class="number">0
</span>.date_service
.with_date(|date| dst.extend_from_slice(<span class="kw-2">&</span>date.bytes));
}
}
<span class="attr">#[cfg(test)]
</span><span class="kw">mod </span>tests {
<span class="kw">use </span>actix_rt::{
task::yield_now,
time::{sleep, sleep_until},
};
<span class="kw">use </span>memchr::memmem;
<span class="kw">use super</span>::<span class="kw-2">*</span>;
<span class="kw">use crate</span>::{date::DATE_VALUE_LENGTH, notify_on_drop};
<span class="attr">#[actix_rt::test]
</span><span class="kw">async fn </span>test_date_service_update() {
<span class="kw">let </span>settings =
ServiceConfig::new(KeepAlive::Os, Duration::ZERO, Duration::ZERO, <span class="bool-val">false</span>, <span class="prelude-val">None</span>);
yield_now().<span class="kw">await</span>;
<span class="kw">let </span><span class="kw-2">mut </span>buf1 = BytesMut::with_capacity(DATE_VALUE_LENGTH + <span class="number">10</span>);
settings.write_date_header(<span class="kw-2">&mut </span>buf1, <span class="bool-val">false</span>);
<span class="kw">let </span>now1 = settings.now();
sleep_until((Instant::now() + Duration::from_secs(<span class="number">2</span>)).into()).<span class="kw">await</span>;
yield_now().<span class="kw">await</span>;
<span class="kw">let </span>now2 = settings.now();
<span class="kw">let </span><span class="kw-2">mut </span>buf2 = BytesMut::with_capacity(DATE_VALUE_LENGTH + <span class="number">10</span>);
settings.write_date_header(<span class="kw-2">&mut </span>buf2, <span class="bool-val">false</span>);
<span class="macro">assert_ne!</span>(now1, now2);
<span class="macro">assert_ne!</span>(buf1, buf2);
drop(settings);
<span class="comment">// Ensure the task will drop eventually
</span><span class="kw">let </span><span class="kw-2">mut </span>times = <span class="number">0</span>;
<span class="kw">while </span>!notify_on_drop::is_dropped() {
sleep(Duration::from_millis(<span class="number">100</span>)).<span class="kw">await</span>;
times += <span class="number">1</span>;
<span class="macro">assert!</span>(times < <span class="number">10</span>, <span class="string">"Timeout waiting for task drop"</span>);
}
}
<span class="attr">#[actix_rt::test]
</span><span class="kw">async fn </span>test_date_service_drop() {
<span class="kw">let </span>service = Rc::new(DateService::new());
<span class="comment">// yield so date service have a chance to register the spawned timer update task.
</span>yield_now().<span class="kw">await</span>;
<span class="kw">let </span>clone1 = service.clone();
<span class="kw">let </span>clone2 = service.clone();
<span class="kw">let </span>clone3 = service.clone();
drop(clone1);
<span class="macro">assert!</span>(!notify_on_drop::is_dropped());
drop(clone2);
<span class="macro">assert!</span>(!notify_on_drop::is_dropped());
drop(clone3);
<span class="macro">assert!</span>(!notify_on_drop::is_dropped());
drop(service);
<span class="comment">// Ensure the task will drop eventually
</span><span class="kw">let </span><span class="kw-2">mut </span>times = <span class="number">0</span>;
<span class="kw">while </span>!notify_on_drop::is_dropped() {
sleep(Duration::from_millis(<span class="number">100</span>)).<span class="kw">await</span>;
times += <span class="number">1</span>;
<span class="macro">assert!</span>(times < <span class="number">10</span>, <span class="string">"Timeout waiting for task drop"</span>);
}
}
<span class="attr">#[test]
</span><span class="kw">fn </span>test_date_len() {
<span class="macro">assert_eq!</span>(DATE_VALUE_LENGTH, <span class="string">"Sun, 06 Nov 1994 08:49:37 GMT"</span>.len());
}
<span class="attr">#[actix_rt::test]
</span><span class="kw">async fn </span>test_date() {
<span class="kw">let </span>settings = ServiceConfig::default();
<span class="kw">let </span><span class="kw-2">mut </span>buf1 = BytesMut::with_capacity(DATE_VALUE_LENGTH + <span class="number">10</span>);
settings.write_date_header(<span class="kw-2">&mut </span>buf1, <span class="bool-val">false</span>);
<span class="kw">let </span><span class="kw-2">mut </span>buf2 = BytesMut::with_capacity(DATE_VALUE_LENGTH + <span class="number">10</span>);
settings.write_date_header(<span class="kw-2">&mut </span>buf2, <span class="bool-val">false</span>);
<span class="macro">assert_eq!</span>(buf1, buf2);
}
<span class="attr">#[actix_rt::test]
</span><span class="kw">async fn </span>test_date_camel_case() {
<span class="kw">let </span>settings = ServiceConfig::default();
<span class="kw">let </span><span class="kw-2">mut </span>buf = BytesMut::with_capacity(DATE_VALUE_LENGTH + <span class="number">10</span>);
settings.write_date_header(<span class="kw-2">&mut </span>buf, <span class="bool-val">false</span>);
<span class="macro">assert!</span>(memmem::find(<span class="kw-2">&</span>buf, <span class="string">b"date:"</span>).is_some());
<span class="kw">let </span><span class="kw-2">mut </span>buf = BytesMut::with_capacity(DATE_VALUE_LENGTH + <span class="number">10</span>);
settings.write_date_header(<span class="kw-2">&mut </span>buf, <span class="bool-val">true</span>);
<span class="macro">assert!</span>(memmem::find(<span class="kw-2">&</span>buf, <span class="string">b"Date:"</span>).is_some());
}
}
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