Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 162 insertions, 0 deletions

diff --git a/Source/WebCore/platform/network/CredentialStorage.cpp b/Source/WebCore/platform/network/CredentialStorage.cpp
new file mode 100644
index 0000000..428181d
--- /dev/null
+++ b/Source/WebCore/platform/network/CredentialStorage.cpp
@@ -0,0 +1,162 @@
+/*
+ * 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