--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/page/SecurityOrigin.h Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,214 @@
+/*
+ * Copyright (C) 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.
+ * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE 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 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.
+ */
+
+#ifndef SecurityOrigin_h
+#define SecurityOrigin_h
+
+#include <wtf/HashSet.h>
+#include <wtf/RefCounted.h>
+#include <wtf/PassRefPtr.h>
+#include <wtf/Threading.h>
+
+#include "FrameLoaderTypes.h"
+#include "PlatformString.h"
+#include "StringHash.h"
+
+namespace WebCore {
+
+class Document;
+class KURL;
+
+class SecurityOrigin : public ThreadSafeShared<SecurityOrigin> {
+public:
+ static PassRefPtr<SecurityOrigin> createFromDatabaseIdentifier(const String&);
+ static PassRefPtr<SecurityOrigin> createFromString(const String&);
+ static PassRefPtr<SecurityOrigin> create(const KURL&, SandboxFlags = SandboxNone);
+ static PassRefPtr<SecurityOrigin> createEmpty();
+
+ // Create a deep copy of this SecurityOrigin. This method is useful
+ // when marshalling a SecurityOrigin to another thread.
+ PassRefPtr<SecurityOrigin> threadsafeCopy();
+
+ // Set the domain property of this security origin to newDomain. This
+ // function does not check whether newDomain is a suffix of the current
+ // domain. The caller is responsible for validating newDomain.
+ void setDomainFromDOM(const String& newDomain);
+ bool domainWasSetInDOM() const { return m_domainWasSetInDOM; }
+
+ static void setDomainRelaxationForbiddenForURLScheme(bool forbidden, const String&);
+ static bool isDomainRelaxationForbiddenForURLScheme(const String&);
+
+ String protocol() const { return m_protocol; }
+ String host() const { return m_host; }
+ String domain() const { return m_domain; }
+ unsigned short port() const { return m_port; }
+
+ // Returns true if this SecurityOrigin can script objects in the given
+ // SecurityOrigin. For example, call this function before allowing
+ // script from one security origin to read or write objects from
+ // another SecurityOrigin.
+ bool canAccess(const SecurityOrigin*) const;
+
+ // Returns true if this SecurityOrigin can read content retrieved from
+ // the given URL. For example, call this function before issuing
+ // XMLHttpRequests.
+ bool canRequest(const KURL&) const;
+
+ // Returns true if drawing an image from this URL taints a canvas from
+ // this security origin. For example, call this function before
+ // drawing an image onto an HTML canvas element with the drawImage API.
+ bool taintsCanvas(const KURL&) const;
+
+ // Returns true for any non-local URL. If document parameter is supplied,
+ // its local load policy dictates, otherwise if referrer is non-empty and
+ // represents a local file, then the local load is allowed.
+ static bool canLoad(const KURL&, const String& referrer, Document* document);
+
+ // Returns true if this SecurityOrigin can load local resources, such
+ // as images, iframes, and style sheets, and can link to local URLs.
+ // For example, call this function before creating an iframe to a
+ // file:// URL.
+ //
+ // Note: A SecurityOrigin might be allowed to load local resources
+ // without being able to issue an XMLHttpRequest for a local URL.
+ // To determine whether the SecurityOrigin can issue an
+ // XMLHttpRequest for a URL, call canRequest(url).
+ bool canLoadLocalResources() const { return m_canLoadLocalResources; }
+
+ // Explicitly grant the ability to load local resources to this
+ // SecurityOrigin.
+ //
+ // Note: This method exists only to support backwards compatibility
+ // with older versions of WebKit.
+ void grantLoadLocalResources();
+
+ // Explicitly grant the ability to access very other SecurityOrigin.
+ //
+ // WARNING: This is an extremely powerful ability. Use with caution!
+ void grantUniversalAccess();
+
+ bool isSandboxed(SandboxFlags mask) const { return m_sandboxFlags & mask; }
+
+ bool canAccessDatabase() const { return !isUnique(); }
+ bool canAccessLocalStorage() const { return !isUnique(); }
+ bool canAccessCookies() const { return !isUnique(); }
+ bool canAccessPasswordManager() const { return !isUnique(); }
+
+ // Technically, we should always allow access to sessionStorage, but we
+ // currently don't handle creating a sessionStorage area for unique
+ // origins.
+ bool canAccessSessionStorage() const { return !isUnique(); }
+
+ bool isSecureTransitionTo(const KURL&) const;
+
+ // The local SecurityOrigin is the most privileged SecurityOrigin.
+ // The local SecurityOrigin can script any document, navigate to local
+ // resources, and can set arbitrary headers on XMLHttpRequests.
+ bool isLocal() const;
+
+ // The empty SecurityOrigin is the least privileged SecurityOrigin.
+ bool isEmpty() const;
+
+ // The origin is a globally unique identifier assigned when the Document is
+ // created. http://www.whatwg.org/specs/web-apps/current-work/#sandboxOrigin
+ //
+ // There's a subtle difference between a unique origin and an origin that
+ // has the SandboxOrigin flag set. The latter implies the former, and, in
+ // addition, the SandboxOrigin flag is inherited by iframes.
+ bool isUnique() const { return m_isUnique; }
+
+ // Marks a file:// origin as being in a domain defined by its path.
+ void enforceFilePathSeparation();
+
+ // Convert this SecurityOrigin into a string. The string
+ // representation of a SecurityOrigin is similar to a URL, except it
+ // lacks a path component. The string representation does not encode
+ // the value of the SecurityOrigin's domain property.
+ //
+ // When using the string value, it's important to remember that it might be
+ // "null". This happens when this SecurityOrigin is unique. For example,
+ // this SecurityOrigin might have come from a sandboxed iframe, the
+ // SecurityOrigin might be empty, or we might have explicitly decided that
+ // we shouldTreatURLSchemeAsNoAccess.
+ String toString() const;
+
+ // Serialize the security origin to a string that could be used as part of
+ // file names. This format should be used in storage APIs only.
+ String databaseIdentifier() const;
+
+ // This method checks for equality between SecurityOrigins, not whether
+ // one origin can access another. It is used for hash table keys.
+ // For access checks, use canAccess().
+ // FIXME: If this method is really only useful for hash table keys, it
+ // should be refactored into SecurityOriginHash.
+ bool equal(const SecurityOrigin*) const;
+
+ // This method checks for equality, ignoring the value of document.domain
+ // (and whether it was set) but considering the host. It is used for postMessage.
+ bool isSameSchemeHostPort(const SecurityOrigin*) const;
+
+ static bool shouldHideReferrer(const KURL&, const String& referrer);
+
+ enum LocalLoadPolicy {
+ AllowLocalLoadsForAll, // No restriction on local loads.
+ AllowLocalLoadsForLocalAndSubstituteData,
+ AllowLocalLoadsForLocalOnly,
+ };
+ static void setLocalLoadPolicy(LocalLoadPolicy);
+ static bool restrictAccessToLocal();
+ static bool allowSubstituteDataAccessToLocal();
+
+ static void addOriginAccessWhitelistEntry(const SecurityOrigin& sourceOrigin, const String& destinationProtocol, const String& destinationDomains, bool allowDestinationSubdomains);
+ static void removeOriginAccessWhitelistEntry(const SecurityOrigin& sourceOrigin, const String& destinationProtocol, const String& destinationDomains, bool allowDestinationSubdomains);
+ static void resetOriginAccessWhitelists();
+
+private:
+ SecurityOrigin(const KURL&, SandboxFlags);
+ explicit SecurityOrigin(const SecurityOrigin*);
+
+ bool passesFileCheck(const SecurityOrigin* other) const;
+
+ bool isAccessWhiteListed(const SecurityOrigin* targetOrigin) const;
+
+ SandboxFlags m_sandboxFlags;
+ String m_protocol;
+ String m_host;
+ mutable String m_encodedHost;
+ String m_domain;
+ String m_filePath;
+ unsigned short m_port;
+ bool m_isUnique;
+ bool m_universalAccess;
+ bool m_domainWasSetInDOM;
+ bool m_canLoadLocalResources;
+ bool m_enforceFilePathSeparation;
+};
+
+} // namespace WebCore
+
+#endif // SecurityOrigin_h