webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 124 insertions, 0 deletions

diff --git a/Source/WebCore/contentextensions/ContentExtensionRule.cpp b/Source/WebCore/contentextensions/ContentExtensionRule.cpp
new file mode 100644
index 000000000..2dc73275c
--- /dev/null
+++ b/Source/WebCore/contentextensions/ContentExtensionRule.cpp
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2014, 2015 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. 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 INC. 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.
+ */
+
+#include "config.h"
+#include "ContentExtensionRule.h"
+
+#if ENABLE(CONTENT_EXTENSIONS)
+
+namespace WebCore {
+
+namespace ContentExtensions {
+
+ContentExtensionRule::ContentExtensionRule(const Trigger& trigger, const Action& action)
+    : m_trigger(trigger)
+    , m_action(action)
+{
+    ASSERT(!m_trigger.urlFilter.isEmpty());
+}
+
+Action Action::deserialize(const SerializedActionByte* actions, const uint32_t actionsLength, uint32_t location)
+{
+    RELEASE_ASSERT(location < actionsLength);
+    switch (static_cast<ActionType>(actions[location])) {
+    case ActionType::BlockCookies:
+        return Action(ActionType::BlockCookies, location);
+    case ActionType::BlockLoad:
+        return Action(ActionType::BlockLoad, location);
+    case ActionType::IgnorePreviousRules:
+        return Action(ActionType::IgnorePreviousRules, location);
+    case ActionType::MakeHTTPS:
+        return Action(ActionType::MakeHTTPS, location);
+    case ActionType::CSSDisplayNoneSelector: {
+        uint32_t headerLength = sizeof(ActionType) + sizeof(uint32_t) + sizeof(bool);
+        uint32_t stringStartIndex = location + headerLength;
+        RELEASE_ASSERT(actionsLength >= stringStartIndex);
+        uint32_t selectorLength = *reinterpret_cast<const unsigned*>(&actions[location + sizeof(ActionType)]);
+        bool wideCharacters = actions[location + sizeof(ActionType) + sizeof(uint32_t)];
+        
+        if (wideCharacters) {
+            RELEASE_ASSERT(actionsLength >= stringStartIndex + selectorLength * sizeof(UChar));
+            return Action(ActionType::CSSDisplayNoneSelector, String(reinterpret_cast<const UChar*>(&actions[stringStartIndex]), selectorLength), location);
+        }
+        RELEASE_ASSERT(actionsLength >= stringStartIndex + selectorLength * sizeof(LChar));
+        return Action(ActionType::CSSDisplayNoneSelector, String(reinterpret_cast<const LChar*>(&actions[stringStartIndex]), selectorLength), location);
+    }
+    case ActionType::CSSDisplayNoneStyleSheet:
+    case ActionType::InvalidAction:
+    default:
+        RELEASE_ASSERT_NOT_REACHED();
+    }
+}
+    
+ActionType Action::deserializeType(const SerializedActionByte* actions, const uint32_t actionsLength, uint32_t location)
+{
+    RELEASE_ASSERT(location < actionsLength);
+    ActionType type = static_cast<ActionType>(actions[location]);
+    switch (type) {
+    case ActionType::BlockCookies:
+    case ActionType::BlockLoad:
+    case ActionType::IgnorePreviousRules:
+    case ActionType::CSSDisplayNoneSelector:
+    case ActionType::MakeHTTPS:
+        return type;
+    case ActionType::CSSDisplayNoneStyleSheet:
+    case ActionType::InvalidAction:
+    default:
+        RELEASE_ASSERT_NOT_REACHED();
+    }
+}
+    
+uint32_t Action::serializedLength(const SerializedActionByte* actions, const uint32_t actionsLength, uint32_t location)
+{
+    RELEASE_ASSERT(location < actionsLength);
+    switch (static_cast<ActionType>(actions[location])) {
+    case ActionType::BlockCookies:
+    case ActionType::BlockLoad:
+    case ActionType::IgnorePreviousRules:
+    case ActionType::MakeHTTPS:
+        return sizeof(ActionType);
+    case ActionType::CSSDisplayNoneSelector: {
+        uint32_t headerLength = sizeof(ActionType) + sizeof(uint32_t) + sizeof(bool);
+        uint32_t stringStartIndex = location + headerLength;
+        RELEASE_ASSERT(actionsLength >= stringStartIndex);
+        uint32_t selectorLength = *reinterpret_cast<const unsigned*>(&actions[location + sizeof(ActionType)]);
+        bool wideCharacters = actions[location + sizeof(ActionType) + sizeof(uint32_t)];
+        
+        if (wideCharacters)
+            return headerLength + selectorLength * sizeof(UChar);
+        return headerLength + selectorLength * sizeof(LChar);
+    }
+    case ActionType::CSSDisplayNoneStyleSheet:
+    case ActionType::InvalidAction:
+    default:
+        RELEASE_ASSERT_NOT_REACHED();
+    }
+}
+
+} // namespace ContentExtensions
+
+} // namespace WebCore
+
+#endif // ENABLE(CONTENT_EXTENSIONS)