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/*
* Copyright (C) 2009 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 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 "CredentialStorage.h"
#include "Credential.h"
#include "KURL.h"
#include "ProtectionSpaceHash.h"
#include <wtf/text/StringConcatenate.h>
#include <wtf/text/StringHash.h>
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/StdLibExtras.h>
namespace WebCore {
typedef HashMap<ProtectionSpace, Credential> ProtectionSpaceToCredentialMap;
static ProtectionSpaceToCredentialMap& protectionSpaceToCredentialMap()
{
DEFINE_STATIC_LOCAL(ProtectionSpaceToCredentialMap, map, ());
return map;
}
static HashSet<String>& originsWithCredentials()
{
DEFINE_STATIC_LOCAL(HashSet<String>, set, ());
return set;
}
typedef HashMap<String, ProtectionSpace> PathToDefaultProtectionSpaceMap;
static PathToDefaultProtectionSpaceMap& pathToDefaultProtectionSpaceMap()
{
DEFINE_STATIC_LOCAL(PathToDefaultProtectionSpaceMap, map, ());
return map;
}
static String originStringFromURL(const KURL& url)
{
if (url.port())
return makeString(url.protocol(), "://", url.host(), ':', String::number(url.port()), '/');
return makeString(url.protocol(), "://", url.host(), '/');
}
static String protectionSpaceMapKeyFromURL(const KURL& url)
{
ASSERT(url.isValid());
// Remove the last path component that is not a directory to determine the subtree for which credentials will apply.
// We keep a leading slash, but remove a trailing one.
String directoryURL = url.string().substring(0, url.pathEnd());
unsigned directoryURLPathStart = url.pathStart();
ASSERT(directoryURL[directoryURLPathStart] == '/');
if (directoryURL.length() > directoryURLPathStart + 1) {
size_t index = directoryURL.reverseFind('/');
ASSERT(index != notFound);
directoryURL = directoryURL.substring(0, (index != directoryURLPathStart) ? index : directoryURLPathStart + 1);
}
return directoryURL;
}
void CredentialStorage::set(const Credential& credential, const ProtectionSpace& protectionSpace, const KURL& url)
{
ASSERT(protectionSpace.isProxy() || url.protocolInHTTPFamily());
ASSERT(protectionSpace.isProxy() || url.isValid());
protectionSpaceToCredentialMap().set(protectionSpace, credential);
if (!protectionSpace.isProxy()) {
originsWithCredentials().add(originStringFromURL(url));
ProtectionSpaceAuthenticationScheme scheme = protectionSpace.authenticationScheme();
if (scheme == ProtectionSpaceAuthenticationSchemeHTTPBasic || scheme == ProtectionSpaceAuthenticationSchemeDefault) {
// The map can contain both a path and its subpath - while redundant, this makes lookups faster.
pathToDefaultProtectionSpaceMap().set(protectionSpaceMapKeyFromURL(url), protectionSpace);
}
}
}
Credential CredentialStorage::get(const ProtectionSpace& protectionSpace)
{
return protectionSpaceToCredentialMap().get(protectionSpace);
}
void CredentialStorage::remove(const ProtectionSpace& protectionSpace)
{
protectionSpaceToCredentialMap().remove(protectionSpace);
}
static PathToDefaultProtectionSpaceMap::iterator findDefaultProtectionSpaceForURL(const KURL& url)
{
ASSERT(url.protocolInHTTPFamily());
ASSERT(url.isValid());
PathToDefaultProtectionSpaceMap& map = pathToDefaultProtectionSpaceMap();
// Don't spend time iterating the path for origins that don't have any credentials.
if (!originsWithCredentials().contains(originStringFromURL(url)))
return map.end();
String directoryURL = protectionSpaceMapKeyFromURL(url);
unsigned directoryURLPathStart = url.pathStart();
while (true) {
PathToDefaultProtectionSpaceMap::iterator iter = map.find(directoryURL);
if (iter != map.end())
return iter;
if (directoryURL.length() == directoryURLPathStart + 1) // path is "/" already, cannot shorten it any more
return map.end();
size_t index = directoryURL.reverseFind('/', directoryURL.length() - 2);
ASSERT(index != notFound);
directoryURL = directoryURL.substring(0, (index == directoryURLPathStart) ? index + 1 : index);
ASSERT(directoryURL.length() > directoryURLPathStart);
ASSERT(directoryURL.length() == directoryURLPathStart + 1 || directoryURL[directoryURL.length() - 1] != '/');
}
}
bool CredentialStorage::set(const Credential& credential, const KURL& url)
{
ASSERT(url.protocolInHTTPFamily());
ASSERT(url.isValid());
PathToDefaultProtectionSpaceMap::iterator iter = findDefaultProtectionSpaceForURL(url);
if (iter == pathToDefaultProtectionSpaceMap().end())
return false;
ASSERT(originsWithCredentials().contains(originStringFromURL(url)));
protectionSpaceToCredentialMap().set(iter->second, credential);
return true;
}
Credential CredentialStorage::get(const KURL& url)
{
PathToDefaultProtectionSpaceMap::iterator iter = findDefaultProtectionSpaceForURL(url);
if (iter == pathToDefaultProtectionSpaceMap().end())
return Credential();
return protectionSpaceToCredentialMap().get(iter->second);
}
} // namespace WebCore
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