Source/WTF/wtf/cocoa/URLCocoa.mm

/*
 * Copyright (C) 2004-2021 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
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 *    notice, this list of conditions and the following disclaimer in the
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 *
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
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 */

#import "config.h"
#import <wtf/URL.h>

#import <wtf/URLParser.h>
#import <wtf/cf/CFURLExtras.h>
#import <wtf/cocoa/NSURLExtras.h>
#import <wtf/cocoa/TypeCastsCocoa.h>
#import <wtf/text/CString.h>

@interface NSString (WTFNSURLExtras)
- (BOOL)_web_looksLikeIPAddress;
@end

namespace WTF {

URL::URL(NSURL *cocoaURL)
    : URL(bridge_cast(cocoaURL))
{
}

URL::operator NSURL *() const
{
    // Creating a toll-free bridged CFURL because creation with NSURL methods would not preserve the original string.
    // We'll need fidelity when round-tripping via CFURLGetBytes().
    return createCFURL().bridgingAutorelease();
}

RetainPtr<CFURLRef> URL::emptyCFURL()
{
    // We use the toll-free bridge to create an empty value that is distinct from null that no CFURL function can create.
    // FIXME: When we originally wrote this, we thought that creating empty CF URLs was valuable; can we do without it now?
    return bridge_cast(adoptNS([[NSURL alloc] initWithString:@""]));
}

bool URL::hostIsIPAddress(StringView host)
{
    return [host.createNSStringWithoutCopying().get() _web_looksLikeIPAddress];
}

RetainPtr<id> makeNSArrayElement(const URL& vectorElement)
{
    return bridge_cast(vectorElement.createCFURL());
}

std::optional<URL> makeVectorElement(const URL*, id arrayElement)
{
    if (![arrayElement isKindOfClass:NSURL.class])
        return std::nullopt;
    return { { arrayElement } };
}

}