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Fixed ProxyTunnel

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This commit is contained in:
johannesd3 2021-01-30 14:03:34 +01:00
parent a45fe85c27
commit c1d62d72a7
1 changed files with 33 additions and 22 deletions
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25
core/src/proxytunnel.rs
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@ -17,20 +17,25 @@ pub async fn connect<T: AsyncRead + AsyncWrite + Unpin>(
.into_bytes();
connection.write_all(buffer.as_ref()).await?;
buffer.clear();
connection.read_to_end(&mut buffer).await?;
if buffer.is_empty() {
buffer.resize(buffer.capacity(), 0);
let mut offset = 0;
loop {
let bytes_read = connection.read(&mut buffer[offset..]).await?;
if bytes_read == 0 {
return Err(io::Error::new(io::ErrorKind::Other, "Early EOF from proxy"));
}
offset += bytes_read;
let mut headers = [httparse::EMPTY_HEADER; 16];
let mut response = httparse::Response::new(&mut headers);
response
.parse(&buffer[..])
.map_err(|err| io::Error::new(io::ErrorKind::Other, err.to_string()))?;
let status = response
.parse(&buffer[..offset])
.map_err(|err| io::Error::new(io::ErrorKind::Other, err))?;
match response.code {
if status.is_complete() {
return match response.code {
Some(200) => Ok(connection), // Proxy says all is well
Some(code) => {
let reason = response.reason.unwrap_or("no reason");
@ -41,5 +46,11 @@ pub async fn connect<T: AsyncRead + AsyncWrite + Unpin>(
io::ErrorKind::Other,
"Malformed response from proxy",
)),
};
}
if offset >= buffer.len() {
buffer.resize(buffer.len() * 2, 0);
}
}
}