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naive: Support http 1.0 proxy request (#418)

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Authored-By: hukeyue@hotmail.com
Authored-By: Chilledheart <rwindz0@gmail.com>
This commit is contained in:
Chilledheart 2023-01-07 11:49:45 +08:00 committed by klzgrad
parent 262a464c2e
commit a0e53b5f3f
1 changed files with 54 additions and 8 deletions
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52
src/net/tools/naive/http_proxy_socket.cc
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@ -15,6 +15,7 @@
#include "base/sys_byteorder.h"
#include "net/base/ip_address.h"
#include "net/base/net_errors.h"
#include "net/base/url_util.h"
#include "net/http/http_request_headers.h"
#include "net/log/net_log.h"
#include "net/third_party/quiche/src/quiche/spdy/core/hpack/hpack_constants.h"
@ -279,20 +280,26 @@ int HttpProxySocket::DoHeaderReadComplete(int result) {
}
// HttpProxyClientSocket uses CONNECT for all endpoints.
// GET is also supported.
auto first_line_end = buffer_.find("\r\n");
auto first_space = buffer_.find(' ');
bool is_http_1_0 = false;
if (first_space == std::string::npos || first_space + 1 >= first_line_end) {
return ERR_INVALID_ARGUMENT;
}
if (buffer_.compare(0, first_space, "CONNECT") != 0) {
return ERR_INVALID_ARGUMENT;
}
if (buffer_.compare(0, first_space, HttpRequestHeaders::kConnectMethod) ==
0) {
auto second_space = buffer_.find(' ', first_space + 1);
if (second_space == std::string::npos || second_space >= first_line_end) {
LOG(WARNING) << "Invalid request: " << buffer_.substr(0, first_line_end);
return ERR_INVALID_ARGUMENT;
}
request_endpoint_ = HostPortPair::FromString(
buffer_.substr(first_space + 1, second_space - (first_space + 1)));
} else {
// postprobe endpoint handling
is_http_1_0 = true;
}
auto second_line = first_line_end + 2;
HttpRequestHeaders headers;
@ -301,6 +308,26 @@ int HttpProxySocket::DoHeaderReadComplete(int result) {
headers_str = buffer_.substr(second_line, header_end - second_line);
headers.AddHeadersFromString(headers_str);
}
if (is_http_1_0) {
std::string host_str;
if (!headers.GetHeader(HttpRequestHeaders::kHost, &host_str)) {
return ERR_INVALID_ARGUMENT;
}
std::string host;
int port;
if (!ParseHostAndPort(host_str, &host, &port)) {
LOG(WARNING) << "Invalid Host: " << host_str;
return ERR_INVALID_ARGUMENT;
}
request_endpoint_.set_host(host);
if (port != -1)
request_endpoint_.set_port(port);
else
request_endpoint_.set_port(80);
}
if (headers.HasHeader("padding")) {
padding_detector_delegate_->SetClientPaddingSupport(
PaddingSupport::kCapable);
@ -309,6 +336,25 @@ int HttpProxySocket::DoHeaderReadComplete(int result) {
PaddingSupport::kIncapable);
}
if (is_http_1_0) {
// Regerate http header to make sure don't leak them to end servers
HttpRequestHeaders sanitized_headers = headers;
sanitized_headers.RemoveHeader(HttpRequestHeaders::kProxyConnection);
sanitized_headers.RemoveHeader(HttpRequestHeaders::kProxyAuthorization);
std::stringstream ss;
ss << buffer_.substr(0, first_line_end);
ss << "\r\n";
ss << sanitized_headers.ToString();
ss << "\r\n";
ss << "\r\n";
ss << buffer_.substr(header_end + 4);
buffer_ = ss.str();
// Skip padding write for raw http proxy
completed_handshake_ = true;
next_state_ = STATE_NONE;
return OK;
}
buffer_ = buffer_.substr(header_end + 4);
next_state_ = STATE_HEADER_WRITE;