std::string request(http::client &client, http::method method, const string &userPath)
{
char buf[http::MAX_URL_LEN + 1] = {0};
buffered_socket sock;
std::string path = userPath;
net::uri uri = client.uri();
std::string content = client.content();
if (client.is_secure()) {
sock.set_secure(true);
}
if (!uri.port().empty()) {
int port = stoi(uri.port());
if (!sock.connect(uri.host(), port)) {
throw socket_exception("unable to connect to " + uri.to_string());
}
} else {
if (!sock.connect(uri.host(),
client.is_secure() ? http::DEFAULT_SECURE_PORT : http::DEFAULT_PORT)) {
throw socket_exception("unable to connect to " + uri.to_string());
}
}
if (path.empty()) {
path = uri.full_path();
}
// send the method and path
if (path.empty())
snprintf(buf, http::MAX_URL_LEN, http::REQUEST_PREAMBLE, http::method_names[method], "/",
client.version().c_str());
else if (path[0] == '/')
snprintf(buf, http::MAX_URL_LEN, http::REQUEST_PREAMBLE, http::method_names[method],
path.c_str(), client.version().c_str());
else
snprintf(buf, http::MAX_URL_LEN, http::REQUEST_PREAMBLE, http::method_names[method],
("/" + path).c_str(), client.version().c_str());
sock.writeln(buf);
bool chunked = client.has_header(http::HEADER_TRANSFER_ENCODING) &&
!strcasecmp(client.header(http::HEADER_TRANSFER_ENCODING).c_str(), "chunked");
// specify the host
if (!client.has_header(http::HEADER_HOST)) {
snprintf(buf, http::MAX_URL_LEN, "%s: %s", http::HEADER_HOST, uri.host().c_str());
sock.writeln(buf);
}
if (!client.has_header(http::HEADER_ACCEPT)) {
snprintf(buf, http::MAX_URL_LEN, "%s: */*", http::HEADER_ACCEPT);
sock.writeln(buf);
}
if (!client.has_header(http::HEADER_CONNECTION)) {
snprintf(buf, http::MAX_URL_LEN, "%s: close", http::HEADER_CONNECTION);
sock.writeln(buf);
}
// add the headers
for (const auto &h : client.headers()) {
snprintf(buf, http::MAX_URL_LEN, "%s: %s", h.first.c_str(), h.second.c_str());
sock.writeln(buf);
}
// if we have a content, add the size
if (!chunked && !content.empty()) {
snprintf(buf, http::MAX_URL_LEN, "%s: %zu", http::HEADER_CONTENT_SIZE, content.size());
sock.writeln(buf);
}
// finish header
sock.writeln();
// add the content
if (!content.empty()) {
sock.write(content);
}
#ifdef DEBUG
cout << string(sock.output().begin(), sock.output().end());
#endif
if (!sock.write_from_buffer()) {
throw socket_exception("unable to write to socket");
}
if (!sock.read_to_buffer()) {
throw socket_exception("unable to read from socket");
}
auto input = sock.input();
return string(input.begin(), input.end());
}
