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/*
* Copyright (C) 2004, 2006, 2007, 2008 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 COMPUTER, 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 COMPUTER, 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 "ResourceHandle.h"
#include "ResourceHandleInternal.h"
#include "Logging.h"
#include "ResourceHandleClient.h"
#include "Timer.h"
#include <algorithm>
namespace WebCore {
static bool shouldForceContentSniffing;
static bool portAllowed(const ResourceRequest&);
ResourceHandle::ResourceHandle(const ResourceRequest& request, ResourceHandleClient* client, bool defersLoading,
bool shouldContentSniff, bool mightDownloadFromHandle)
: d(new ResourceHandleInternal(this, request, client, defersLoading, shouldContentSniff, mightDownloadFromHandle))
{
}
PassRefPtr<ResourceHandle> ResourceHandle::create(const ResourceRequest& request, ResourceHandleClient* client,
Frame* frame, bool defersLoading, bool shouldContentSniff, bool mightDownloadFromHandle)
{
if (shouldContentSniff)
shouldContentSniff = shouldContentSniffURL(request.url());
RefPtr<ResourceHandle> newHandle(adoptRef(new ResourceHandle(request, client, defersLoading, shouldContentSniff, mightDownloadFromHandle)));
if (!request.url().isValid()) {
newHandle->scheduleFailure(InvalidURLFailure);
return newHandle.release();
}
if (!portAllowed(request)) {
newHandle->scheduleFailure(BlockedFailure);
return newHandle.release();
}
if (newHandle->start(frame))
return newHandle.release();
return 0;
}
void ResourceHandle::scheduleFailure(FailureType type)
{
d->m_failureType = type;
d->m_failureTimer.startOneShot(0);
}
void ResourceHandle::fireFailure(Timer<ResourceHandle>*)
{
if (!client())
return;
switch (d->m_failureType) {
case BlockedFailure:
client()->wasBlocked(this);
return;
case InvalidURLFailure:
client()->cannotShowURL(this);
return;
}
ASSERT_NOT_REACHED();
}
ResourceHandleClient* ResourceHandle::client() const
{
return d->m_client;
}
void ResourceHandle::setClient(ResourceHandleClient* client)
{
d->m_client = client;
}
const ResourceRequest& ResourceHandle::request() const
{
return d->m_request;
}
void ResourceHandle::clearAuthentication()
{
#if PLATFORM(MAC)
d->m_currentMacChallenge = nil;
#elif USE(CFNETWORK)
d->m_currentCFChallenge = 0;
#endif
d->m_currentWebChallenge.nullify();
}
static bool portAllowed(const ResourceRequest& request)
{
unsigned short port = request.url().port();
// Since most URLs don't have a port, return early for the "no port" case.
if (!port)
return true;
// This blocked port list matches the port blocking that Mozilla implements.
// See http://www.mozilla.org/projects/netlib/PortBanning.html for more information.
static const unsigned short blockedPortList[] = {
1, // tcpmux
7, // echo
9, // discard
11, // systat
13, // daytime
15, // netstat
17, // qotd
19, // chargen
20, // FTP-data
21, // FTP-control
22, // SSH
23, // telnet
25, // SMTP
37, // time
42, // name
43, // nicname
53, // domain
77, // priv-rjs
79, // finger
87, // ttylink
95, // supdup
101, // hostriame
102, // iso-tsap
103, // gppitnp
104, // acr-nema
109, // POP2
110, // POP3
111, // sunrpc
113, // auth
115, // SFTP
117, // uucp-path
119, // nntp
123, // NTP
135, // loc-srv / epmap
139, // netbios
143, // IMAP2
179, // BGP
389, // LDAP
465, // SMTP+SSL
512, // print / exec
513, // login
514, // shell
515, // printer
526, // tempo
530, // courier
531, // Chat
532, // netnews
540, // UUCP
556, // remotefs
563, // NNTP+SSL
587, // ESMTP
601, // syslog-conn
636, // LDAP+SSL
993, // IMAP+SSL
995, // POP3+SSL
2049, // NFS
3659, // apple-sasl / PasswordServer [Apple addition]
4045, // lockd
6000, // X11
};
const unsigned short* const blockedPortListEnd = blockedPortList
+ sizeof(blockedPortList) / sizeof(blockedPortList[0]);
// If the port is not in the blocked port list, allow it.
if (!std::binary_search(blockedPortList, blockedPortListEnd, port))
return true;
// Allow ports 21 and 22 for FTP URLs, as Mozilla does.
if ((port == 21 || port == 22) && request.url().protocolIs("ftp"))
return true;
// Allow any port number in a file URL, since the port number is ignored.
if (request.url().protocolIs("file"))
return true;
return false;
}
bool ResourceHandle::shouldContentSniff() const
{
return d->m_shouldContentSniff;
}
bool ResourceHandle::shouldContentSniffURL(const KURL& url)
{
#if PLATFORM(MAC)
if (shouldForceContentSniffing)
return true;
#endif
// We shouldn't content sniff file URLs as their MIME type should be established via their extension.
return !url.protocolIs("file");
}
void ResourceHandle::forceContentSniffing()
{
shouldForceContentSniffing = true;
}
} // namespace WebCore
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