remoting/base/capabilities.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "remoting/base/capabilities.h"
   6
   7 #include <algorithm>
   8 #include <vector>
   9
  10 #include "base/stl_util.h"
  11 #include "base/strings/string_util.h"
  12
  13 namespace remoting {
  14
  15 bool HasCapability(const std::string& capabilities, const std::string& key) {
  16   std::vector<std::string> caps;
  17   Tokenize(capabilities, " ", &caps);
  18   return std::find(caps.begin(), caps.end(), key) != caps.end();
  19 }
  20
  21 std::string IntersectCapabilities(const std::string& client_capabilities,
  22                                   const std::string& host_capabilities) {
  23   std::vector<std::string> client_caps;
  24   Tokenize(client_capabilities, " ", &client_caps);
  25   std::sort(client_caps.begin(), client_caps.end());
  26
  27   std::vector<std::string> host_caps;
  28   Tokenize(host_capabilities, " ", &host_caps);
  29   std::sort(host_caps.begin(), host_caps.end());
  30
  31   std::vector<std::string> result =
  32       base::STLSetIntersection<std::vector<std::string> >(
  33           client_caps, host_caps);
  34
  35   return JoinString(result, " ");
  36 }
  37
  38 }  // namespace remoting