[Chromoting] Update uninstaller to facilitate testing automation.

remoting/host/installer/mac/uninstaller/remoting_uninstaller_app.mm

+// Copyright (c) 2012 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/installer/mac/uninstaller/remoting_uninstaller_app.h"
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/mac/scoped_authorizationref.h"
+#include "base/mac/scoped_cftyperef.h"
+#include "remoting/host/installer/mac/uninstaller/remoting_uninstaller.h"
+
+@implementation RemotingUninstallerAppDelegate
+
+- (void)dealloc {
+  [super dealloc];
+}
+
+- (void)applicationDidFinishLaunching:(NSNotification*)aNotification {
+}
+
+- (void)messageBox:(const char*)message {
+  base::mac::ScopedCFTypeRef<CFStringRef> message_ref(
+      CFStringCreateWithCString(kCFAllocatorDefault, message,
+                                kCFStringEncodingUTF8));
+  CFOptionFlags result;
+  CFUserNotificationDisplayAlert(0, kCFUserNotificationNoteAlertLevel,
+                                 NULL, NULL, NULL,
+                                 CFSTR("Chrome Remote Desktop Uninstaller"),
+                                 message_ref, NULL, NULL, NULL, &result);
+}
+
+- (IBAction)uninstall:(NSButton*)sender {
+  base::mac::ScopedAuthorizationRef authRef;
+
+  NSLog(@"Chrome Remote Desktop uninstall starting.");
+
+  @try {
+    OSStatus status;
+    status = AuthorizationCreate(NULL, kAuthorizationEmptyEnvironment,
+                                 kAuthorizationFlagDefaults, &authRef);
+    if (status != errAuthorizationSuccess) {
+      [NSException raise:@"AuthorizationCreate Failure"
+          format:@"Error during AuthorizationCreate status=%ld", status];
+    }
+
+    AuthorizationItem right = {kAuthorizationRightExecute, 0, NULL, 0};
+    AuthorizationRights rights = {1, &right};
+    AuthorizationFlags flags = kAuthorizationFlagDefaults |
+                               kAuthorizationFlagInteractionAllowed |
+                               kAuthorizationFlagPreAuthorize |
+                               kAuthorizationFlagExtendRights;
+    status = AuthorizationCopyRights(authRef, &rights, NULL, flags, NULL);
+    if (status == errAuthorizationCanceled) {
+      NSLog(@"Chrome Remote Desktop Host uninstall canceled.");
+      const char* message = "Chrome Remote Desktop Host uninstall canceled.";
+      [self messageBox:message];
+    } else if (status == errAuthorizationSuccess) {
+      RemotingUninstaller* uninstaller =
+          [[[RemotingUninstaller alloc] init] autorelease];
+      [uninstaller remotingUninstallUsingAuth:authRef];
+
+      NSLog(@"Chrome Remote Desktop Host uninstall complete.");
+      const char* message =
+          "Chrome Remote Desktop Host was successfully uninstalled.";
+      [self messageBox:message];
+    } else {
+      [NSException raise:@"AuthorizationCopyRights Failure"
+          format:@"Error during AuthorizationCopyRights status=%ld", status];
+    }
+  }
+  @catch (NSException* exception) {
+    NSLog(@"Exception %@ %@", [exception name], [exception reason]);
+    const char* message =
+        "Error! Unable to uninstall Chrome Remote Desktop Host.";
+    [self messageBox:message];
+  }
+
+  [NSApp terminate:self];
+}
+
+- (IBAction)cancel:(id)sender {
+  [NSApp terminate:self];
+}
+
+- (IBAction)handleMenuClose:(NSMenuItem*)sender {
+  [NSApp terminate:self];
+}
+
+@end
+
+int main(int argc, char* argv[])
+{
+  // If we're launched as root, then skip the elevation and UI confirmations.
+  // This is provided as a convenience for our automated testing.
+  int euid = geteuid();

[Lambros, 2012/07/23 22:06:47]

nit: s/int/uid_t, but I think it's OK to get rid of the temporary in this case.

[garykac, 2012/07/23 22:41:09]

No longer applicable

+  if (euid == 0) {
+    @autoreleasepool {
+      NSLog(@"Running as euid=0. Suppressing UI and elevation prompts.");
+
+      RemotingUninstaller* uninstaller =
+          [[[RemotingUninstaller alloc] init] autorelease];
+      [uninstaller remotingUninstallUsingAuth:nil];
+
+      NSLog(@"Chrome Remote Desktop Host uninstall complete.");
+      return 0;
+    }
+  } else {
+    return NSApplicationMain(argc, (const char**)argv);
+  }
+}
+