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Fixes #298: corrected removal of chunk end when receiving larger chunks

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This commit is contained in:
eidheim 2020-05-13 10:28:27 +02:00
commit a20a729a40
3 changed files with 49 additions and 31 deletions
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27
client_http.hpp
View file

@ -508,7 +508,7 @@ namespace SimpleWeb {
else {
parsed_host_port.first = host_port.substr(0, host_end);
try {
parsed_host_port.second = static_cast<unsigned short>(stoul(host_port.substr(host_end + 1)));
parsed_host_port.second = static_cast<unsigned short>(std::stoul(host_port.substr(host_end + 1)));
}
catch(...) {
parsed_host_port.second = default_port;
@ -573,7 +573,7 @@ namespace SimpleWeb {
auto header_it = session->response->header.find("Content-Length");
if(header_it != session->response->header.end()) {
auto content_length = stoull(header_it->second);
auto content_length = std::stoull(header_it->second);
if(content_length > num_additional_bytes)
this->read_content(session, content_length - num_additional_bytes);
else
@ -698,7 +698,7 @@ namespace SimpleWeb {
bytes_transferred -= line.size() + 1;
unsigned long chunk_size = 0;
try {
chunk_size = stoul(line, 0, 16);
chunk_size = std::stoul(line, 0, 16);
}
catch(...) {
session->callback(make_error_code::make_error_code(errc::protocol_error));
@ -710,7 +710,7 @@ namespace SimpleWeb {
return;
}
if(2 + chunk_size + session->response->streambuf.size() > session->response->streambuf.max_size()) {
if(chunk_size + session->response->streambuf.size() > session->response->streambuf.max_size()) {
session->response->content.end = false;
session->callback(ec);
session->response = std::shared_ptr<Response>(new Response(*session->response));
@ -726,21 +726,24 @@ namespace SimpleWeb {
source.consume(bytes_to_move);
}
if((2 + chunk_size) > num_additional_bytes) {
asio::async_read(*session->connection->socket, session->response->streambuf, asio::transfer_exactly(2 + chunk_size - num_additional_bytes), [this, session, chunk_size_streambuf](const error_code &ec, size_t /*bytes_transferred*/) {
if(chunk_size > num_additional_bytes) {
asio::async_read(*session->connection->socket, session->response->streambuf, asio::transfer_exactly(chunk_size - num_additional_bytes), [this, session, chunk_size_streambuf](const error_code &ec, size_t /*bytes_transferred*/) {
auto lock = session->connection->handler_runner->continue_lock();
if(!lock)
return;
if(!ec) {
std::istream istream(&session->response->streambuf);
// Remove "\r\n"
istream.seekg(2, std::ios::end);
istream.get();
istream.get();
auto null_buffer = std::make_shared<boost::asio::streambuf>(2);
asio::async_read(*session->connection->socket, *null_buffer, asio::transfer_exactly(2), [this, session, chunk_size_streambuf, null_buffer](const error_code &ec, size_t /*bytes_transferred*/) {
auto lock = session->connection->handler_runner->continue_lock();
if(!lock)
return;
if(!ec)
read_chunked_transfer_encoded(session, chunk_size_streambuf);
else
session->callback(ec);
});
}
else
session->callback(ec);

33
server_http.hpp
View file

@ -543,7 +543,7 @@ namespace SimpleWeb {
if(header_it != session->request->header.end()) {
unsigned long long content_length = 0;
try {
content_length = stoull(header_it->second);
content_length = std::stoull(header_it->second);
}
catch(const std::exception &) {
if(this->on_error)
@ -605,7 +605,7 @@ namespace SimpleWeb {
bytes_transferred -= line.size() + 1;
unsigned long chunk_size = 0;
try {
chunk_size = stoul(line, 0, 16);
chunk_size = std::stoul(line, 0, 16);
}
catch(...) {
if(this->on_error)
@ -613,7 +613,12 @@ namespace SimpleWeb {
return;
}
if(2 + chunk_size + session->request->streambuf.size() > session->request->streambuf.max_size()) {
if(chunk_size == 0) {
this->find_resource(session);
return;
}
if(chunk_size + session->request->streambuf.size() > session->request->streambuf.max_size()) {
auto response = std::shared_ptr<Response>(new Response(session, this->config.timeout_content));
response->write(StatusCode::client_error_payload_too_large);
if(this->on_error)
@ -632,24 +637,25 @@ namespace SimpleWeb {
source.consume(bytes_to_move);
}
if((2 + chunk_size) > num_additional_bytes) {
asio::async_read(*session->connection->socket, session->request->streambuf, asio::transfer_exactly(2 + chunk_size - num_additional_bytes), [this, session, chunk_size_streambuf, chunk_size](const error_code &ec, size_t /*bytes_transferred*/) {
if(chunk_size > num_additional_bytes) {
asio::async_read(*session->connection->socket, session->request->streambuf, asio::transfer_exactly(chunk_size - num_additional_bytes), [this, session, chunk_size_streambuf](const error_code &ec, size_t /*bytes_transferred*/) {
auto lock = session->connection->handler_runner->continue_lock();
if(!lock)
return;
if(!ec) {
std::istream istream(&session->request->streambuf);
// Remove "\r\n"
istream.seekg(2, std::ios::end);
istream.get();
istream.get();
auto null_buffer = std::make_shared<boost::asio::streambuf>(2);
asio::async_read(*session->connection->socket, *null_buffer, asio::transfer_exactly(2), [this, session, chunk_size_streambuf, null_buffer](const error_code &ec, size_t /*bytes_transferred*/) {
auto lock = session->connection->handler_runner->continue_lock();
if(!lock)
return;
if(chunk_size > 0)
if(!ec)
read_chunked_transfer_encoded(session, chunk_size_streambuf);
else
this->find_resource(session);
this->on_error(session->request, ec);
});
}
else if(this->on_error)
this->on_error(session->request, ec);
@ -660,10 +666,7 @@ namespace SimpleWeb {
istream.get();
istream.get();
if(chunk_size > 0)
read_chunked_transfer_encoded(session, chunk_size_streambuf);
else
this->find_resource(session);
}
}
else if(this->on_error)

12
tests/io_test.cpp
View file

@ -143,6 +143,14 @@ int main() {
response->write("6\r\nSimple\r\n3\r\nWeb\r\nE\r\n in\r\n\r\nchunks.\r\n0\r\n\r\n", {{"Transfer-Encoding", "chunked"}});
};
server.resource["^/chunked2$"]["POST"] = [](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> request) {
ASSERT(request->path == "/chunked2");
ASSERT(request->content.string() == "HelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorld");
response->write("258\r\nHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorld\r\n0\r\n\r\n", {{"Transfer-Encoding", "chunked"}});
};
server.resource["^/event-stream1$"]["GET"] = [](shared_ptr<HttpServer::Response> response, shared_ptr<HttpServer::Request> /*request*/) {
thread work_thread([response] {
response->close_connection_after_response = true; // Unspecified content length
@ -314,6 +322,10 @@ int main() {
auto r = client.request("POST", "/chunked", "6\r\nSimple\r\n3\r\nWeb\r\nE\r\n in\r\n\r\nchunks.\r\n0\r\n\r\n", {{"Transfer-Encoding", "chunked"}});
ASSERT(r->content.string() == "SimpleWeb in\r\n\r\nchunks.");
}
{
auto r = client.request("POST", "/chunked2", "258\r\nHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorld\r\n0\r\n\r\n", {{"Transfer-Encoding", "chunked"}});
ASSERT(r->content.string() == "HelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorldHelloWorld");
}
// Test reconnecting
for(int c = 0; c < 20; ++c) {