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/*
* Copyright (C) 2011 Google, Inc. All rights reserved.
* Copyright (C) 2016 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 GOOGLE INC. ``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
* 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.
*/
#include "config.h"
#include "ContentSecurityPolicySource.h"
#include "ContentSecurityPolicy.h"
#include "URL.h"
namespace WebCore {
ContentSecurityPolicySource::ContentSecurityPolicySource(const ContentSecurityPolicy& policy, const String& scheme, const String& host, std::optional<uint16_t> port, const String& path, bool hostHasWildcard, bool portHasWildcard)
: m_policy(policy)
, m_scheme(scheme)
, m_host(host)
, m_port(port)
, m_path(path)
, m_hostHasWildcard(hostHasWildcard)
, m_portHasWildcard(portHasWildcard)
{
}
bool ContentSecurityPolicySource::matches(const URL& url, bool didReceiveRedirectResponse) const
{
if (!schemeMatches(url))
return false;
if (isSchemeOnly())
return true;
return hostMatches(url) && portMatches(url) && (didReceiveRedirectResponse || pathMatches(url));
}
bool ContentSecurityPolicySource::schemeMatches(const URL& url) const
{
if (m_scheme.isEmpty())
return m_policy.protocolMatchesSelf(url);
if (equalLettersIgnoringASCIICase(m_scheme, "http"))
return url.protocolIsInHTTPFamily();
return equalIgnoringASCIICase(url.protocol(), m_scheme);
}
bool ContentSecurityPolicySource::hostMatches(const URL& url) const
{
const String& host = url.host();
if (equalIgnoringASCIICase(host, m_host))
return true;
return m_hostHasWildcard && host.endsWith("." + m_host, false);
}
bool ContentSecurityPolicySource::pathMatches(const URL& url) const
{
if (m_path.isEmpty())
return true;
String path = decodeURLEscapeSequences(url.path());
if (m_path.endsWith("/"))
return path.startsWith(m_path);
return path == m_path;
}
bool ContentSecurityPolicySource::portMatches(const URL& url) const
{
if (m_portHasWildcard)
return true;
std::optional<uint16_t> port = url.port();
if (port == m_port)
return true;
if (isDefaultPortForProtocol(m_port.value(), "http") && ((!port && url.protocolIs("https")) || isDefaultPortForProtocol(port.value(), "https")))
return true;
if (!port)
return isDefaultPortForProtocol(m_port.value(), url.protocol());
if (!m_port)
return isDefaultPortForProtocol(port.value(), url.protocol());
return false;
}
bool ContentSecurityPolicySource::isSchemeOnly() const
{
return m_host.isEmpty();
}
} // namespace WebCore
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