Basic user access check for chromoting host.

remoting/host/access_verifier.cc

Index: remoting/host/access_verifier.cc
diff --git a/remoting/host/access_verifier.cc b/remoting/host/access_verifier.cc
new file mode 100644
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+++ b/remoting/host/access_verifier.cc
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+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "remoting/host/access_verifier.h"
+
+#include "base/logging.h"
+#include "base/string_util.h"
+#include "remoting/host/host_config.h"
+
+namespace remoting {
+
+AccessVerifier::AccessVerifier()
+    : initialized_(false) {
+}
+
+bool AccessVerifier::Init(HostConfig* config) {
+  std::string host_jid;
+
+  if (!config->GetString(kXmppLoginConfigPath, &host_jid) ||
+      host_jid.empty()) {
+    LOG(ERROR) << "XMPP credentials are not defined in the config.";
+    return false;
+  }
+
+  host_jid_prefix_ = host_jid + '/';
+  initialized_ = true;
+
+  return true;
+}
+
+bool AccessVerifier::VerifyPermissions(const std::string& client_jid) {
+  CHECK(initialized_);
+  // Check that the client has the same bare jid as the host, i.e.
+  // client's full jid starts with host's bare jid.
+  return StartsWithASCII(client_jid, host_jid_prefix_, true);
+}
+
+}  // namespace remoting