WebPluginContainerCheck.mm   [plain text]

/*
* Copyright (C) 2005, 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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#import "WebPluginContainerCheck.h"

#import "WebFrameInternal.h"
#import "WebPluginContainerPrivate.h"
#import "WebPluginController.h"
#import "WebPolicyDelegatePrivate.h"
#import "WebView.h"
#import "WebViewInternal.h"
#import <Foundation/NSDictionary.h>
#import <Foundation/NSURL.h>
#import <Foundation/NSURLRequest.h>
#import <WebCore/Document.h>
#import <WebCore/Frame.h>
#import <WebCore/FrameLoader.h>
#import <WebCore/FrameLoaderTypes.h>
#import <WebCore/SecurityOrigin.h>
#import <wtf/Assertions.h>
#import <wtf/ObjCRuntimeExtras.h>

using namespace WebCore;

#if PLATFORM(IOS_FAMILY)
@interface WebPluginController (SecretsIKnow)
- (WebFrame *)webFrame; // FIXME: This file calls -[WebPluginController webFrame], which is not declared in WebPluginController.h. Merge issue? Are the plug-in files out of date?
@end
#endif

@implementation WebPluginContainerCheck

- (id)initWithRequest:(NSURLRequest *)request target:(NSString *)target resultObject:(id)obj selector:(SEL)selector controller:(id <WebPluginContainerCheckController>)controller contextInfo:(id)contextInfo /*optional*/
{
if (!(self = [super init]))
return nil;

_request = [request copy];
_target = [target copy];
_resultObject = [obj retain];
_resultSelector = selector;
_contextInfo = [contextInfo retain];

// controller owns us so don't retain, to avoid cycle
_controller = controller;

return self;
}

+ (id)checkWithRequest:(NSURLRequest *)request target:(NSString *)target resultObject:(id)obj selector:(SEL)selector controller:(id <WebPluginContainerCheckController>)controller contextInfo:(id)contextInfo /*optional*/
{
return [[[self alloc] initWithRequest:request target:target resultObject:obj selector:selector controller:controller contextInfo:contextInfo] autorelease];
}

- (void)dealloc
{
// mandatory to complete or cancel before releasing this object
ASSERT(_done);
[super dealloc];
}

- (void)_continueWithPolicy:(PolicyAction)policy
{
if (_contextInfo)
wtfObjCMsgSend<void>(_resultObject, _resultSelector, (policy == PolicyAction::Use), _contextInfo);
else
wtfObjCMsgSend<void>(_resultObject, _resultSelector, (policy == PolicyAction::Use));

// this will call indirectly call cancel
[_controller _webPluginContainerCancelCheckIfAllowedToLoadRequest:self];
}

- (BOOL)_isForbiddenFileLoad
{
Frame* coreFrame = core([_controller webFrame]);
ASSERT(coreFrame);
if (!coreFrame->document()->securityOrigin().canDisplay([_request URL])) {
[self _continueWithPolicy:PolicyAction::Ignore];
return YES;
}

return NO;
}

- (NSDictionary *)_actionInformationWithURL:(NSURL *)URL
{
return [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithInt:WebNavigationTypePlugInRequest], WebActionNavigationTypeKey,
[NSNumber numberWithInt:0], WebActionModifierFlagsKey,
URL, WebActionOriginalURLKey,
nil];
}

- (void)_askPolicyDelegate
{
WebView *webView = [_controller webView];

WebFrame *targetFrame;
if ([_target length] > 0) {
targetFrame = [[_controller webFrame] findFrameNamed:_target];
} else {
targetFrame = [_controller webFrame];
}

NSDictionary *action = [self _actionInformationWithURL:[_request URL]];

_listener = [[WebPolicyDecisionListener alloc] _initWithTarget:self action:@selector(_continueWithPolicy:)];

if (targetFrame == nil) {
// would open new window
[[webView _policyDelegateForwarder] webView:webView
decidePolicyForNewWindowAction:action
request:_request
newFrameName:_target
decisionListener:_listener];
} else {
// would target existing frame
[[webView _policyDelegateForwarder] webView:webView
decidePolicyForNavigationAction:action
request:_request
frame:targetFrame
decisionListener:_listener];
}
}

- (void)start
{
ASSERT(!_listener);
ASSERT(!_done);

if ([self _isForbiddenFileLoad])
return;

[self _askPolicyDelegate];
}

- (void)cancel
{
if (_done)
return;

[_request release];
_request = nil;

[_target release];
_target = nil;

[_listener _invalidate];
[_listener release];
_listener = nil;

[_resultObject autorelease];
_resultObject = nil;

_controller = nil;

[_contextInfo release];
_contextInfo = nil;

_done = YES;
}

- (id)contextInfo
{
return _contextInfo;
}

@end