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/*
* Copyright (C) 2014 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 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 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.
*/
#pragma once
#include "SecurityOrigin.h"
namespace WebCore {
template <typename T>
class URLUtils {
public:
URL href() const { return static_cast<const T*>(this)->href(); }
void setHref(const String& url) { static_cast<T*>(this)->setHref(url); }
String toString() const;
String toJSON() const;
String origin() const;
String protocol() const;
void setProtocol(const String&);
String username() const;
void setUsername(const String&);
String password() const;
void setPassword(const String&);
String host() const;
void setHost(const String&);
String hostname() const;
void setHostname(const String&);
String port() const;
void setPort(const String&);
String pathname() const;
void setPathname(const String&);
String search() const;
void setSearch(const String&);
String hash() const;
void setHash(const String&);
};
template <typename T>
String URLUtils<T>::toString() const
{
return href().string();
}
template <typename T>
String URLUtils<T>::toJSON() const
{
return href().string();
}
template <typename T>
String URLUtils<T>::origin() const
{
auto origin = SecurityOrigin::create(href());
return origin->toString();
}
template <typename T>
String URLUtils<T>::protocol() const
{
if (WTF::protocolIsJavaScript(href()))
return "javascript:"_s;
return makeString(href().protocol(), ':');
}
template <typename T>
void URLUtils<T>::setProtocol(const String& value)
{
URL url = href();
url.setProtocol(value);
setHref(url.string());
}
template <typename T>
String URLUtils<T>::username() const
{
return href().encodedUser();
}
template <typename T>
void URLUtils<T>::setUsername(const String& user)
{
URL url = href();
if (url.cannotBeABaseURL())
return;
url.setUser(user);
setHref(url);
}
template <typename T>
String URLUtils<T>::password() const
{
return href().encodedPass();
}
template <typename T>
void URLUtils<T>::setPassword(const String& pass)
{
URL url = href();
if (url.cannotBeABaseURL())
return;
url.setPass(pass);
setHref(url);
}
template <typename T>
String URLUtils<T>::host() const
{
return href().hostAndPort();
}
// This function does not allow leading spaces before the port number.
static inline unsigned parsePortFromStringPosition(const String& value, unsigned portStart, unsigned& portEnd)
{
portEnd = portStart;
while (isASCIIDigit(value[portEnd]))
++portEnd;
return value.substring(portStart, portEnd - portStart).toUInt();
}
template <typename T>
void URLUtils<T>::setHost(const String& value)
{
if (value.isEmpty())
return;
URL url = href();
if (url.cannotBeABaseURL())
return;
if (!url.canSetHostOrPort())
return;
size_t separator = value.find(':');
if (!separator)
return;
if (separator == notFound)
url.setHostAndPort(value);
else {
unsigned portEnd;
unsigned port = parsePortFromStringPosition(value, separator + 1, portEnd);
if (!port) {
// http://dev.w3.org/html5/spec/infrastructure.html#url-decomposition-idl-attributes
// specifically goes against RFC 3986 (p3.2) and
// requires setting the port to "0" if it is set to empty string.
url.setHostAndPort(value.substring(0, separator + 1) + '0');
} else {
if (WTF::isDefaultPortForProtocol(port, url.protocol()))
url.setHostAndPort(value.substring(0, separator));
else
url.setHostAndPort(value.substring(0, portEnd));
}
}
setHref(url.string());
}
template <typename T>
String URLUtils<T>::hostname() const
{
return href().host().toString();
}
template <typename T>
void URLUtils<T>::setHostname(const String& value)
{
// Before setting new value:
// Remove all leading U+002F SOLIDUS ("/") characters.
unsigned i = 0;
unsigned hostLength = value.length();
while (value[i] == '/')
i++;
if (i == hostLength)
return;
URL url = href();
if (url.cannotBeABaseURL())
return;
if (!url.canSetHostOrPort())
return;
url.setHost(value.substring(i));
setHref(url.string());
}
template <typename T>
String URLUtils<T>::port() const
{
if (href().port())
return String::number(href().port().value());
return emptyString();
}
template <typename T>
void URLUtils<T>::setPort(const String& value)
{
URL url = href();
if (url.cannotBeABaseURL() || url.protocolIs("file"))
return;
if (!url.canSetHostOrPort())
return;
bool success = true;
unsigned port = value.toUInt(&success);
if (!success || WTF::isDefaultPortForProtocol(port, url.protocol()))
url.removePort();
else
url.setPort(port);
setHref(url.string());
}
template <typename T>
String URLUtils<T>::pathname() const
{
return href().path().toString();
}
template <typename T>
void URLUtils<T>::setPathname(const String& value)
{
URL url = href();
if (url.cannotBeABaseURL())
return;
if (!url.canSetPathname())
return;
if (value[0U] == '/')
url.setPath(value);
else
url.setPath("/" + value);
setHref(url.string());
}
template <typename T>
String URLUtils<T>::search() const
{
String query = href().query();
return query.isEmpty() ? emptyString() : "?" + query;
}
template <typename T>
void URLUtils<T>::setSearch(const String& value)
{
URL url = href();
if (value.isEmpty()) {
// If the given value is the empty string, set url's query to null.
url.setQuery({ });
} else {
String newSearch = (value[0U] == '?') ? value.substring(1) : value;
// Make sure that '#' in the query does not leak to the hash.
url.setQuery(newSearch.replaceWithLiteral('#', "%23"));
}
setHref(url.string());
}
template <typename T>
String URLUtils<T>::hash() const
{
String fragmentIdentifier = href().fragmentIdentifier();
if (fragmentIdentifier.isEmpty())
return emptyString();
return AtomString(String("#" + fragmentIdentifier));
}
template <typename T>
void URLUtils<T>::setHash(const String& value)
{
URL url = href();
String newFragment = value[0U] == '#' ? value.substring(1) : value;
if (newFragment.isEmpty())
url.removeFragmentIdentifier();
else
url.setFragmentIdentifier(newFragment);
setHref(url.string());
}
} // namespace WebCore