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/*
* 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 "PublicSuffix.h"
#import "WebCoreSystemInterface.h"
#import "WebCoreNSURLExtras.h"
#import <wtf/RetainPtr.h>
#if ENABLE(PUBLIC_SUFFIX_LIST)
@interface NSString (WebCoreNSURLExtras)
- (BOOL)_web_looksLikeIPAddress;
@end
namespace WebCore {
bool isPublicSuffix(const String& domain)
{
return wkIsPublicSuffix(decodeHostName(domain));
}
String topPrivatelyControlledDomain(const String& domain)
{
if (domain.isNull() || domain.isEmpty())
return String();
NSString *host = decodeHostName(domain);
if ([host _web_looksLikeIPAddress])
return domain;
// Match the longest possible suffix.
bool hasTopLevelDomain = false;
NSCharacterSet *dot = [[NSCharacterSet characterSetWithCharactersInString:@"."] retain];
NSRange nextDot = NSMakeRange(0, [host length]);
for (NSRange previousDot = [host rangeOfCharacterFromSet:dot]; previousDot.location != NSNotFound; nextDot = previousDot, previousDot = [host rangeOfCharacterFromSet:dot options:0 range:NSMakeRange(previousDot.location + previousDot.length, [host length] - (previousDot.location + previousDot.length))]) {
NSString *substring = [host substringFromIndex:previousDot.location + previousDot.length];
if (wkIsPublicSuffix(substring)) {
hasTopLevelDomain = true;
break;
}
}
[dot release];
if (!hasTopLevelDomain)
return String();
if (!nextDot.location)
return domain;
return encodeHostName([host substringFromIndex:nextDot.location + nextDot.length]);
}
}
#endif
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