ContentFilterIOS.mm   [plain text]

/*
 * Copyright (C) 2013 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#import "config.h"
#import "ContentFilter.h"

#if PLATFORM(IOS) && USE(CONTENT_FILTERING)

#import "ResourceRequest.h"
#import "WebCoreThreadRun.h"

#if defined(__has_include) && __has_include(<WebContentAnalysis/WebFilterEvaluator.h>)
#import <WebContentAnalysis/WebFilterEvaluator.h>
#else
@interface NSObject (WebFilterEvaluatorDetails)
- (void)unblockWithCompletion:(void (^)(BOOL unblocked, NSError *error))completion;
@end
#endif

namespace WebCore {

static inline const char* scheme()
{
    static const char contentFilterScheme[] = "x-apple-content-filter";
    return contentFilterScheme;
}

bool ContentFilter::handleUnblockRequestAndDispatchIfSuccessful(const ResourceRequest& request, std::function<void()> function)
{
    if (!request.url().protocolIs(scheme()))
        return false;

    if (!equalIgnoringCase(request.url().host(), "unblock"))
        return false;

    [m_platformContentFilter unblockWithCompletion:^(BOOL unblocked, NSError *) {
        if (unblocked)
            function();
    }];
    return true;
}

} // namespace WebCore

#endif // PLATFORM(IOS) && USE(CONTENT_FILTERING)