410 lines
13 KiB
C++
410 lines
13 KiB
C++
/*
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* Copyright (C) 2003-2019 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <wtf/Forward.h>
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#include <wtf/RetainPtr.h>
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#include <wtf/text/WTFString.h>
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#if USE(GLIB) && HAVE(GURI)
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#include <wtf/glib/GRefPtr.h>
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#endif
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#if USE(CF)
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typedef const struct __CFURL* CFURLRef;
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#endif
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#if USE(FOUNDATION)
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OBJC_CLASS NSURL;
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#endif
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#if PLATFORM(HAIKU)
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class BUrl;
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#endif
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namespace WTF {
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class PrintStream;
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class TextStream;
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class URLTextEncoding {
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public:
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virtual Vector<uint8_t> encodeForURLParsing(StringView) const = 0;
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protected:
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virtual ~URLTextEncoding() { }
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};
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class URL {
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WTF_MAKE_FAST_ALLOCATED;
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public:
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// Generates a URL which contains a null string.
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URL() { invalidate(); }
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explicit URL(HashTableDeletedValueType);
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bool isHashTableDeletedValue() const { return m_string.isHashTableDeletedValue(); }
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// Resolves the relative URL with the given base URL. If provided, the
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// URLTextEncoding is used to encode non-ASCII characers. The base URL can be
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// null or empty, in which case the relative URL will be interpreted as absolute.
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WTF_EXPORT_PRIVATE URL(const URL& base, const String& relative, const URLTextEncoding* = nullptr);
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WTF_EXPORT_PRIVATE static URL fakeURLWithRelativePart(StringView);
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WTF_EXPORT_PRIVATE static URL fileURLWithFileSystemPath(StringView);
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WTF_EXPORT_PRIVATE String strippedForUseAsReferrer() const;
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// Makes a deep copy. Helpful only if you need to use a URL on another
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// thread. Since the underlying StringImpl objects are immutable, there's
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// no other reason to ever prefer isolatedCopy() over plain old assignment.
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WTF_EXPORT_PRIVATE URL isolatedCopy() const;
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bool isNull() const;
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bool isEmpty() const;
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bool isValid() const;
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// Since we overload operator NSURL* we have this to prevent accidentally using that operator
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// when placing a URL in an if statment.
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operator bool() const = delete;
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// Returns true if you can set the host and port for the URL.
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// Non-hierarchical URLs don't have a host and port.
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bool canSetHostOrPort() const { return isHierarchical(); }
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bool canSetPathname() const { return isHierarchical(); }
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WTF_EXPORT_PRIVATE bool isHierarchical() const;
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const String& string() const { return m_string; }
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WTF_EXPORT_PRIVATE String stringCenterEllipsizedToLength(unsigned length = 1024) const;
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// Unlike user() and password(), encodedUser() and encodedPassword() don't decode escape sequences.
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// This is necessary for accurate round-tripping, because encoding doesn't encode '%' characters.
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WTF_EXPORT_PRIVATE StringView protocol() const;
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WTF_EXPORT_PRIVATE StringView encodedUser() const;
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WTF_EXPORT_PRIVATE StringView encodedPassword() const;
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WTF_EXPORT_PRIVATE StringView host() const;
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WTF_EXPORT_PRIVATE std::optional<uint16_t> port() const;
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WTF_EXPORT_PRIVATE StringView path() const;
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WTF_EXPORT_PRIVATE StringView lastPathComponent() const;
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WTF_EXPORT_PRIVATE StringView query() const;
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WTF_EXPORT_PRIVATE StringView fragmentIdentifier() const;
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WTF_EXPORT_PRIVATE StringView queryWithLeadingQuestionMark() const;
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WTF_EXPORT_PRIVATE StringView fragmentIdentifierWithLeadingNumberSign() const;
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WTF_EXPORT_PRIVATE StringView stringWithoutQueryOrFragmentIdentifier() const;
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WTF_EXPORT_PRIVATE StringView stringWithoutFragmentIdentifier() const;
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WTF_EXPORT_PRIVATE String protocolHostAndPort() const;
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WTF_EXPORT_PRIVATE String hostAndPort() const;
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WTF_EXPORT_PRIVATE String user() const;
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WTF_EXPORT_PRIVATE String password() const;
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WTF_EXPORT_PRIVATE String fileSystemPath() const;
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WTF_EXPORT_PRIVATE URL truncatedForUseAsBase() const;
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bool hasQuery() const;
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bool hasFragmentIdentifier() const;
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bool hasPath() const;
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bool hasCredentials() const;
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// Returns true if the current URL's protocol is the same as the null-
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// terminated ASCII argument. The argument must be lower-case.
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WTF_EXPORT_PRIVATE bool protocolIs(const char*) const;
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WTF_EXPORT_PRIVATE bool protocolIs(StringView) const;
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bool protocolIsBlob() const { return protocolIs("blob"); }
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bool protocolIsData() const { return protocolIs("data"); }
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WTF_EXPORT_PRIVATE bool protocolIsAbout() const;
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WTF_EXPORT_PRIVATE bool protocolIsJavaScript() const;
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bool protocolIsInHTTPFamily() const;
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WTF_EXPORT_PRIVATE bool isLocalFile() const;
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bool cannotBeABaseURL() const { return m_cannotBeABaseURL; }
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WTF_EXPORT_PRIVATE bool isAboutBlank() const;
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WTF_EXPORT_PRIVATE bool isAboutSrcDoc() const;
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WTF_EXPORT_PRIVATE bool isMatchingDomain(StringView) const;
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WTF_EXPORT_PRIVATE bool setProtocol(StringView);
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WTF_EXPORT_PRIVATE void setHost(StringView);
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WTF_EXPORT_PRIVATE void setPort(std::optional<uint16_t>);
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// Input is like "foo.com" or "foo.com:8000".
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WTF_EXPORT_PRIVATE void setHostAndPort(StringView);
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WTF_EXPORT_PRIVATE void setUser(StringView);
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WTF_EXPORT_PRIVATE void setPassword(StringView);
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WTF_EXPORT_PRIVATE void removeCredentials();
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// If you pass an empty path for HTTP or HTTPS URLs, the resulting path will be "/".
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WTF_EXPORT_PRIVATE void setPath(StringView);
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// The query may begin with a question mark, or, if not, one will be added
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// for you. Setting the query to the empty string will leave a "?" in the
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// URL (with nothing after it). To clear the query, pass a null string.
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WTF_EXPORT_PRIVATE void setQuery(StringView);
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WTF_EXPORT_PRIVATE void setFragmentIdentifier(StringView);
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WTF_EXPORT_PRIVATE void removeFragmentIdentifier();
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WTF_EXPORT_PRIVATE void removeQueryAndFragmentIdentifier();
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WTF_EXPORT_PRIVATE static bool hostIsIPAddress(StringView);
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WTF_EXPORT_PRIVATE unsigned pathStart() const;
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unsigned pathEnd() const;
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unsigned pathAfterLastSlash() const;
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#if USE(CF)
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WTF_EXPORT_PRIVATE URL(CFURLRef);
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WTF_EXPORT_PRIVATE RetainPtr<CFURLRef> createCFURL() const;
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#endif
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#if USE(FOUNDATION)
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WTF_EXPORT_PRIVATE URL(NSURL *);
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WTF_EXPORT_PRIVATE operator NSURL *() const;
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#endif
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#if PLATFORM(HAIKU)
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explicit URL(const BUrl&);
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operator BUrl() const;
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#endif
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#if USE(GLIB) && HAVE(GURI)
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WTF_EXPORT_PRIVATE URL(GUri*);
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WTF_EXPORT_PRIVATE GRefPtr<GUri> createGUri() const;
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#endif
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#ifndef NDEBUG
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void print() const;
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#endif
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WTF_EXPORT_PRIVATE void dump(PrintStream& out) const;
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template<typename Encoder> void encode(Encoder&) const;
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template<typename Decoder> static WARN_UNUSED_RETURN bool decode(Decoder&, URL&);
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template<typename Decoder> static std::optional<URL> decode(Decoder&);
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WTF_EXPORT_PRIVATE bool hasSpecialScheme() const;
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private:
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friend class URLParser;
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WTF_EXPORT_PRIVATE void invalidate();
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unsigned hostStart() const;
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unsigned credentialsEnd() const;
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void remove(unsigned start, unsigned length);
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void parse(const String&);
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friend WTF_EXPORT_PRIVATE bool protocolHostAndPortAreEqual(const URL&, const URL&);
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String m_string;
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unsigned m_isValid : 1;
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unsigned m_protocolIsInHTTPFamily : 1;
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unsigned m_cannotBeABaseURL : 1;
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// This is out of order to align the bits better. The port is after the host.
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unsigned m_portLength : 3;
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static constexpr unsigned maxPortLength = (1 << 3) - 1;
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static constexpr unsigned maxSchemeLength = (1 << 26) - 1;
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unsigned m_schemeEnd : 26;
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unsigned m_userStart;
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unsigned m_userEnd;
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unsigned m_passwordEnd;
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unsigned m_hostEnd;
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unsigned m_pathAfterLastSlash;
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unsigned m_pathEnd;
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unsigned m_queryEnd;
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};
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static_assert(sizeof(URL) == sizeof(String) + 8 * sizeof(unsigned), "URL should stay small");
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bool operator==(const URL&, const URL&);
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bool operator==(const URL&, const String&);
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bool operator==(const String&, const URL&);
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bool operator!=(const URL&, const URL&);
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bool operator!=(const URL&, const String&);
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bool operator!=(const String&, const URL&);
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WTF_EXPORT_PRIVATE bool equalIgnoringFragmentIdentifier(const URL&, const URL&);
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WTF_EXPORT_PRIVATE bool protocolHostAndPortAreEqual(const URL&, const URL&);
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WTF_EXPORT_PRIVATE Vector<KeyValuePair<String, String>> differingQueryParameters(const URL&, const URL&);
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WTF_EXPORT_PRIVATE bool isEqualIgnoringQueryAndFragments(const URL&, const URL&);
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WTF_EXPORT_PRIVATE void removeQueryParameters(URL&, const HashSet<String>&);
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WTF_EXPORT_PRIVATE const URL& aboutBlankURL();
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WTF_EXPORT_PRIVATE const URL& aboutSrcDocURL();
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// Functions to do URL operations on strings.
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// These are operations that aren't faster on a parsed URL.
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// These are also different from the WTF::URL functions in that they don't require the string to be a valid and parsable URL.
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// This is especially important because valid javascript URLs are not necessarily considered valid by WTF::URL.
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WTF_EXPORT_PRIVATE bool protocolIs(StringView url, const char* protocol);
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WTF_EXPORT_PRIVATE bool protocolIsJavaScript(StringView url);
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WTF_EXPORT_PRIVATE bool protocolIsInHTTPFamily(StringView url);
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WTF_EXPORT_PRIVATE std::optional<uint16_t> defaultPortForProtocol(StringView protocol);
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WTF_EXPORT_PRIVATE bool isDefaultPortForProtocol(uint16_t port, StringView protocol);
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WTF_EXPORT_PRIVATE bool portAllowed(const URL&); // Disallow ports that should never be used for Web resources.
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WTF_EXPORT_PRIVATE void registerDefaultPortForProtocolForTesting(uint16_t port, const String& protocol);
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WTF_EXPORT_PRIVATE void clearDefaultPortForProtocolMapForTesting();
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WTF_EXPORT_PRIVATE String mimeTypeFromDataURL(StringView dataURL);
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// FIXME: This needs a new, more specific name. The general thing named here can't be implemented correctly, since different parts of a URL need different escaping.
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WTF_EXPORT_PRIVATE String encodeWithURLEscapeSequences(const String&);
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#ifdef __OBJC__
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WTF_EXPORT_PRIVATE RetainPtr<id> makeNSArrayElement(const URL&);
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WTF_EXPORT_PRIVATE std::optional<URL> makeVectorElement(const URL*, id);
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#endif
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WTF_EXPORT_PRIVATE TextStream& operator<<(TextStream&, const URL&);
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template<> struct DefaultHash<URL>;
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template<> struct HashTraits<URL>;
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// Function template and inline function definitions.
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template<typename Encoder> void URL::encode(Encoder& encoder) const
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{
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encoder << m_string;
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}
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template<typename Decoder> bool URL::decode(Decoder& decoder, URL& url)
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{
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auto optionalURL = decode(decoder);
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if (!optionalURL)
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return false;
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url = WTFMove(*optionalURL);
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return true;
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}
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template<typename Decoder> std::optional<URL> URL::decode(Decoder& decoder)
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{
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std::optional<String> string;
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decoder >> string;
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if (!string)
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return std::nullopt;
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return URL(URL(), WTFMove(*string));
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}
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inline bool operator==(const URL& a, const URL& b)
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{
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return a.string() == b.string();
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}
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inline bool operator==(const URL& a, const String& b)
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{
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return a.string() == b;
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}
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inline bool operator==(const String& a, const URL& b)
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{
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return a == b.string();
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}
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inline bool operator!=(const URL& a, const URL& b)
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{
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return a.string() != b.string();
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}
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inline bool operator!=(const URL& a, const String& b)
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{
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return a.string() != b;
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}
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inline bool operator!=(const String& a, const URL& b)
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{
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return a != b.string();
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}
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inline URL::URL(HashTableDeletedValueType)
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: m_string(HashTableDeletedValue)
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{
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}
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inline bool URL::isNull() const
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{
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return m_string.isNull();
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}
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inline bool URL::isEmpty() const
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{
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return m_string.isEmpty();
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}
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inline bool URL::isValid() const
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{
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return m_isValid;
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}
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inline bool URL::hasPath() const
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{
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return m_pathEnd > pathStart();
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}
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inline bool URL::hasCredentials() const
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{
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return m_passwordEnd > m_userStart;
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}
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inline bool URL::hasQuery() const
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{
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return m_queryEnd > m_pathEnd;
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}
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inline bool URL::hasFragmentIdentifier() const
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{
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return m_isValid && m_string.length() > m_queryEnd;
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}
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inline bool URL::protocolIsInHTTPFamily() const
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{
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return m_protocolIsInHTTPFamily;
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}
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inline unsigned URL::pathEnd() const
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{
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return m_pathEnd;
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}
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inline unsigned URL::pathAfterLastSlash() const
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{
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return m_pathAfterLastSlash;
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}
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} // namespace WTF
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using WTF::aboutBlankURL;
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using WTF::aboutSrcDocURL;
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