Authenticate user/password with PAM in BeginSessionRequest()

remoting/host/host_stub_fake.cc

Index: remoting/host/host_stub_fake.cc
diff --git a/remoting/host/host_stub_fake.cc b/remoting/host/host_stub_fake.cc
index 895b21a3ce3d069e547ab336eb27dd11a20a9214..b133bc2e290023307b4e1307866b2e4d138830b5 100644
--- a/remoting/host/host_stub_fake.cc
+++ b/remoting/host/host_stub_fake.cc
@@ -9,6 +9,10 @@
 #include "remoting/protocol/client_stub.h"
 #include "remoting/protocol/connection_to_client.h"
 
+#if defined(OS_LINUX)
+#include "remoting/host/user_auth_pam.h"
+#endif
+
 namespace remoting {
 
 HostStubFake::HostStubFake(ChromotingHost* host)
@@ -23,14 +27,31 @@ void HostStubFake::SuggestResolution(
 
 void HostStubFake::BeginSessionRequest(
     const protocol::LocalLoginCredentials* credentials, Task* done) {
-  done->Run();
-  delete done;
-
   protocol::LocalLoginStatus* status = new protocol::LocalLoginStatus();
-  status->set_success(true);
+  bool success = false;
+  switch (credentials->type()) {
+    case protocol::PASSWORD:
+#if defined(OS_LINUX)
+      success = UserAuthPam().Authenticate(credentials->username(),
+                                           credentials->credential());
+#else
+      // TODO(lambroslambrou): Implement on other platforms.
+      success = true;
+#endif  // defined(OS_LINUX)
+      break;
+    default:
+      break;
+  }
+  status->set_success(success);
   host_->connection_to_client()->client_stub()->BeginSessionResponse(
       status, new DeleteTask<protocol::LocalLoginStatus>(status));
-  host_->LocalLoginSucceeded();
+  if (success) {
+    host_->LocalLoginSucceeded();
+  } else {
+    LOG(ERROR) << "Login failed for user " << credentials->username();
+  }
+  done->Run();
+  delete done;
 }
 
 }  // namespace remoting