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Code Issues Releases Wiki Activity

add ws error tracing

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This commit is contained in:
Nikolay Kim 2018-02-27 15:38:57 -08:00
parent 1f063e4136
commit 4f99cd1580
1 changed files with 31 additions and 16 deletions
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49
src/ws/client.rs
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@ -36,13 +36,17 @@ pub enum WsClientError {
#[fail(display="Invalid url")]
InvalidUrl,
#[fail(display="Invalid response status")]
InvalidResponseStatus,
InvalidResponseStatus(StatusCode),
#[fail(display="Invalid upgrade header")]
InvalidUpgradeHeader,
#[fail(display="Invalid connection header")]
InvalidConnectionHeader,
InvalidConnectionHeader(HeaderValue),
#[fail(display="Missing CONNECTION header")]
MissingConnectionHeader,
#[fail(display="Missing SEC-WEBSOCKET-ACCEPT header")]
MissingWebSocketAcceptHeader,
#[fail(display="Invalid challenge response")]
InvalidChallengeResponse,
InvalidChallengeResponse(String, HeaderValue),
#[fail(display="Http parsing error")]
Http(HttpError),
#[fail(display="Url parsing error")]
@ -292,7 +296,7 @@ impl Future for WsClientHandshake {
// verify response
if resp.status() != StatusCode::SWITCHING_PROTOCOLS {
return Err(WsClientError::InvalidResponseStatus)
return Err(WsClientError::InvalidResponseStatus(resp.status()))
}
// Check for "UPGRADE" to websocket header
let has_hdr = if let Some(hdr) = resp.headers().get(header::UPGRADE) {
@ -305,19 +309,26 @@ impl Future for WsClientHandshake {
false
};
if !has_hdr {
trace!("Invalid upgrade header");
return Err(WsClientError::InvalidUpgradeHeader)
}
// Check for "CONNECTION" header
let has_hdr = if let Some(conn) = resp.headers().get(header::CONNECTION) {
if let Some(conn) = resp.headers().get(header::CONNECTION) {
if let Ok(s) = conn.to_str() {
s.to_lowercase().contains("upgrade")
} else { false }
} else { false };
if !has_hdr {
return Err(WsClientError::InvalidConnectionHeader)
if !s.to_lowercase().contains("upgrade") {
trace!("Invalid connection header: {}", s);
return Err(WsClientError::InvalidConnectionHeader(conn.clone()))
}
} else {
trace!("Invalid connection header: {:?}", conn);
return Err(WsClientError::InvalidConnectionHeader(conn.clone()))
}
} else {
trace!("Missing connection header");
return Err(WsClientError::MissingConnectionHeader)
}
let match_key = if let Some(key) = resp.headers().get(
if let Some(key) = resp.headers().get(
HeaderName::try_from("SEC-WEBSOCKET-ACCEPT").unwrap())
{
// field is constructed by concatenating /key/
@ -326,13 +337,17 @@ impl Future for WsClientHandshake {
let mut sha1 = Sha1::new();
sha1.update(self.key.as_ref());
sha1.update(WS_GUID);
key.as_bytes() == base64::encode(&sha1.digest().bytes()).as_bytes()
} else {
false
};
if !match_key {
return Err(WsClientError::InvalidChallengeResponse)
let encoded = base64::encode(&sha1.digest().bytes());
if key.as_bytes() != encoded.as_bytes() {
trace!(
"Invalid challenge response: expected: {} received: {:?}",
encoded, key);
return Err(WsClientError::InvalidChallengeResponse(encoded, key.clone()));
}
} else {
trace!("Missing SEC-WEBSOCKET-ACCEPT header");
return Err(WsClientError::MissingWebSocketAcceptHeader)
};
let inner = WsInner {
tx: self.tx.take().unwrap(),