initial code repo

[stor4nfv.git] / src / ceph / src / rgw / rgw_civetweb_frontend.cc

diff --git a/src/ceph/src/rgw/rgw_civetweb_frontend.cc b/src/ceph/src/rgw/rgw_civetweb_frontend.cc
new file mode 100644 (file)
index 0000000..8cf7a20
--- /dev/null
+++ b/src/ceph/src/rgw/rgw_civetweb_frontend.cc
@@ -0,0 +1,96 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include <set>
+#include <string>
+
+#include <boost/utility/string_ref.hpp>
+
+#include "rgw_frontend.h"
+#include "rgw_client_io_filters.h"
+
+#define dout_subsys ceph_subsys_rgw
+
+static int civetweb_callback(struct mg_connection* conn)
+{
+  const struct mg_request_info* const req_info = mg_get_request_info(conn);
+  return static_cast<RGWCivetWebFrontend *>(req_info->user_data)->process(conn);
+}
+
+int RGWCivetWebFrontend::process(struct mg_connection*  const conn)
+{
+  /* Hold a read lock over access to env.store for reconfiguration. */
+  RWLock::RLocker lock(env.mutex);
+
+  RGWCivetWeb cw_client(conn);
+  auto real_client_io = rgw::io::add_reordering(
+                          rgw::io::add_buffering(dout_context,
+                            rgw::io::add_chunking(
+                              rgw::io::add_conlen_controlling(
+                                &cw_client))));
+  RGWRestfulIO client_io(dout_context, &real_client_io);
+
+  RGWRequest req(env.store->get_new_req_id());
+  int ret = process_request(env.store, env.rest, &req, env.uri_prefix,
+                            *env.auth_registry, &client_io, env.olog);
+  if (ret < 0) {
+    /* We don't really care about return code. */
+    dout(20) << "process_request() returned " << ret << dendl;
+  }
+
+  /* Mark as processed. */
+  return 1;
+}
+
+int RGWCivetWebFrontend::run()
+{
+  auto& conf_map = conf->get_config_map();
+  string port_str;
+
+  set_conf_default(conf_map, "num_threads",
+                   std::to_string(g_conf->rgw_thread_pool_size));
+  set_conf_default(conf_map, "decode_url", "no");
+  set_conf_default(conf_map, "enable_keep_alive", "yes");
+  set_conf_default(conf_map, "validate_http_method", "no");
+  set_conf_default(conf_map, "canonicalize_url_path", "no");
+  set_conf_default(conf_map, "enable_auth_domain_check", "no");
+  conf->get_val("port", "80", &port_str);
+  std::replace(port_str.begin(), port_str.end(), '+', ',');
+  conf_map["listening_ports"] = port_str;
+
+  /* Set run_as_user. This will cause civetweb to invoke setuid() and setgid()
+   * based on pw_uid and pw_gid obtained from pw_name. */
+  std::string uid_string = g_ceph_context->get_set_uid_string();
+  if (! uid_string.empty()) {
+    conf_map["run_as_user"] = std::move(uid_string);
+  }
+
+  /* Prepare options for CivetWeb. */
+  const std::set<boost::string_ref> rgw_opts = { "port", "prefix" };
+
+  std::vector<const char*> options;
+
+  for (const auto& pair : conf_map) {
+    if (! rgw_opts.count(pair.first)) {
+      /* CivetWeb doesn't understand configurables of the glue layer between
+       * it and RadosGW. We need to strip them out. Otherwise CivetWeb would
+       * signalise an error. */
+      options.push_back(pair.first.c_str());
+      options.push_back(pair.second.c_str());
+
+      dout(20) << "civetweb config: " << pair.first
+               << ": " << pair.second << dendl;
+    }
+  }
+
+  options.push_back(nullptr);
+  /* Initialize the CivetWeb right now. */
+  struct mg_callbacks cb;
+  memset((void *)&cb, 0, sizeof(cb));
+  cb.begin_request = civetweb_callback;
+  cb.log_message = rgw_civetweb_log_callback;
+  cb.log_access = rgw_civetweb_log_access_callback;
+  ctx = mg_start(&cb, this, options.data());
+
+  return ! ctx ? -EIO : 0;
+} /* RGWCivetWebFrontend::run */