--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include <boost/algorithm/string/predicate.hpp>
+#include <boost/asio/write.hpp>
+#include <beast/http/read.hpp>
+
+#include "rgw_asio_client.h"
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_rgw
+
+#undef dout_prefix
+#define dout_prefix (*_dout << "asio: ")
+
+using namespace rgw::asio;
+
+ClientIO::ClientIO(tcp::socket& socket,
+ parser_type& parser,
+ beast::flat_streambuf& buffer)
+ : socket(socket), parser(parser), buffer(buffer), txbuf(*this)
+{
+}
+
+ClientIO::~ClientIO() = default;
+
+void ClientIO::init_env(CephContext *cct)
+{
+ env.init(cct);
+
+ const auto& request = parser.get();
+ const auto& headers = request.fields;
+ for (auto header = headers.begin(); header != headers.end(); ++header) {
+ const auto& name = header->name();
+ const auto& value = header->value();
+
+ if (boost::algorithm::iequals(name, "content-length")) {
+ env.set("CONTENT_LENGTH", value);
+ continue;
+ }
+ if (boost::algorithm::iequals(name, "content-type")) {
+ env.set("CONTENT_TYPE", value);
+ continue;
+ }
+ if (boost::algorithm::iequals(name, "connection")) {
+ conn_keepalive = boost::algorithm::iequals(value, "keep-alive");
+ conn_close = boost::algorithm::iequals(value, "close");
+ }
+
+ static const boost::string_ref HTTP_{"HTTP_"};
+
+ char buf[name.size() + HTTP_.size() + 1];
+ auto dest = std::copy(std::begin(HTTP_), std::end(HTTP_), buf);
+ for (auto src = name.begin(); src != name.end(); ++src, ++dest) {
+ if (*src == '-') {
+ *dest = '_';
+ } else {
+ *dest = std::toupper(*src);
+ }
+ }
+ *dest = '\0';
+
+ env.set(buf, value);
+ }
+
+ env.set("REQUEST_METHOD", request.method);
+
+ // split uri from query
+ auto url = boost::string_ref{request.url};
+ auto pos = url.find('?');
+ auto query = url.substr(pos + 1);
+ url = url.substr(0, pos);
+
+ env.set("REQUEST_URI", url);
+ env.set("QUERY_STRING", query);
+ env.set("SCRIPT_URI", url); /* FIXME */
+
+ char port_buf[16];
+ snprintf(port_buf, sizeof(port_buf), "%d", socket.local_endpoint().port());
+ env.set("SERVER_PORT", port_buf);
+ // TODO: set SERVER_PORT_SECURE if using ssl
+ // TODO: set REMOTE_USER if authenticated
+}
+
+size_t ClientIO::write_data(const char* buf, size_t len)
+{
+ boost::system::error_code ec;
+ auto bytes = boost::asio::write(socket, boost::asio::buffer(buf, len), ec);
+ if (ec) {
+ derr << "write_data failed: " << ec.message() << dendl;
+ throw rgw::io::Exception(ec.value(), std::system_category());
+ }
+ /* According to the documentation of boost::asio::write if there is
+ * no error (signalised by ec), then bytes == len. We don't need to
+ * take care of partial writes in such situation. */
+ return bytes;
+}
+
+size_t ClientIO::read_data(char* buf, size_t max)
+{
+ auto& message = parser.get();
+ auto& body_remaining = message.body;
+ body_remaining = boost::asio::mutable_buffer{buf, max};
+
+ boost::system::error_code ec;
+
+ dout(30) << this << " read_data for " << max << " with "
+ << buffer.size() << " bytes buffered" << dendl;
+
+ while (boost::asio::buffer_size(body_remaining) && !parser.is_complete()) {
+ auto bytes = beast::http::read_some(socket, buffer, parser, ec);
+ buffer.consume(bytes);
+ if (ec == boost::asio::error::connection_reset ||
+ ec == boost::asio::error::eof ||
+ ec == beast::http::error::partial_message) {
+ break;
+ }
+ if (ec) {
+ derr << "failed to read body: " << ec.message() << dendl;
+ throw rgw::io::Exception(ec.value(), std::system_category());
+ }
+ }
+ return max - boost::asio::buffer_size(body_remaining);
+}
+
+size_t ClientIO::complete_request()
+{
+ return 0;
+}
+
+void ClientIO::flush()
+{
+ txbuf.pubsync();
+}
+
+size_t ClientIO::send_status(int status, const char* status_name)
+{
+ static constexpr size_t STATUS_BUF_SIZE = 128;
+
+ char statusbuf[STATUS_BUF_SIZE];
+ const auto statuslen = snprintf(statusbuf, sizeof(statusbuf),
+ "HTTP/1.1 %d %s\r\n", status, status_name);
+
+ return txbuf.sputn(statusbuf, statuslen);
+}
+
+size_t ClientIO::send_100_continue()
+{
+ const char HTTTP_100_CONTINUE[] = "HTTP/1.1 100 CONTINUE\r\n\r\n";
+ const size_t sent = txbuf.sputn(HTTTP_100_CONTINUE,
+ sizeof(HTTTP_100_CONTINUE) - 1);
+ flush();
+ return sent;
+}
+
+static constexpr size_t TIME_BUF_SIZE = 128;
+static size_t dump_date_header(char (×tr)[TIME_BUF_SIZE])
+{
+ const time_t gtime = time(nullptr);
+ struct tm result;
+ struct tm const * const tmp = gmtime_r(>ime, &result);
+ if (tmp == nullptr) {
+ return 0;
+ }
+ return strftime(timestr, sizeof(timestr),
+ "Date: %a, %d %b %Y %H:%M:%S %Z\r\n", tmp);
+}
+
+size_t ClientIO::complete_header()
+{
+ size_t sent = 0;
+
+ char timestr[TIME_BUF_SIZE];
+ if (dump_date_header(timestr)) {
+ sent += txbuf.sputn(timestr, strlen(timestr));
+ }
+
+ if (conn_keepalive) {
+ constexpr char CONN_KEEP_ALIVE[] = "Connection: Keep-Alive\r\n";
+ sent += txbuf.sputn(CONN_KEEP_ALIVE, sizeof(CONN_KEEP_ALIVE) - 1);
+ } else if (conn_close) {
+ constexpr char CONN_KEEP_CLOSE[] = "Connection: close\r\n";
+ sent += txbuf.sputn(CONN_KEEP_CLOSE, sizeof(CONN_KEEP_CLOSE) - 1);
+ }
+
+ constexpr char HEADER_END[] = "\r\n";
+ sent += txbuf.sputn(HEADER_END, sizeof(HEADER_END) - 1);
+
+ flush();
+ return sent;
+}
+
+size_t ClientIO::send_header(const boost::string_ref& name,
+ const boost::string_ref& value)
+{
+ static constexpr char HEADER_SEP[] = ": ";
+ static constexpr char HEADER_END[] = "\r\n";
+
+ size_t sent = 0;
+
+ sent += txbuf.sputn(name.data(), name.length());
+ sent += txbuf.sputn(HEADER_SEP, sizeof(HEADER_SEP) - 1);
+ sent += txbuf.sputn(value.data(), value.length());
+ sent += txbuf.sputn(HEADER_END, sizeof(HEADER_END) - 1);
+
+ return sent;
+}
+
+size_t ClientIO::send_content_length(uint64_t len)
+{
+ static constexpr size_t CONLEN_BUF_SIZE = 128;
+
+ char sizebuf[CONLEN_BUF_SIZE];
+ const auto sizelen = snprintf(sizebuf, sizeof(sizebuf),
+ "Content-Length: %" PRIu64 "\r\n", len);
+
+ return txbuf.sputn(sizebuf, sizelen);
+}
Code Review / stor4nfv.git / blobdiff