resourcerequest.h

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (C) 2003, 2006 Apple Computer, Inc.  All rights reserved.
 * Copyright (C) 2006 Samuel Weinig <[e-mail]>
 * Copyright (C) 2008 Google, Inc.
 *
 * 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. 
 */

#ifndef ResourceRequest_h
#define ResourceRequest_h

#include "CString.h"
#include "ResourceRequestBase.h"

namespace WebCore {

    class Frame;

    class ResourceRequest : public ResourceRequestBase {
    public:
        enum TargetType {
            TargetIsMainFrame,
            TargetIsSubFrame,
            TargetIsSubResource,
            TargetIsObject,
            TargetIsMedia
        };

        ResourceRequest(const String& url) 
            : ResourceRequestBase(KURL(url), UseProtocolCachePolicy)
            , m_frame(0)
            , m_originPid(0)
            , m_targetType(TargetIsSubResource)
        {
        }

        ResourceRequest(const KURL& url, const CString& securityInfo) 
            : ResourceRequestBase(url, UseProtocolCachePolicy)
            , m_frame(0)
            , m_originPid(0)
            , m_targetType(TargetIsSubResource)
            , m_securityInfo(securityInfo)
        {
        }

        ResourceRequest(const KURL& url) 
            : ResourceRequestBase(url, UseProtocolCachePolicy)
            , m_frame(0)
            , m_originPid(0)
            , m_targetType(TargetIsSubResource)
        {
        }

        ResourceRequest(const KURL& url, const String& referrer, ResourceRequestCachePolicy policy = UseProtocolCachePolicy) 
            : ResourceRequestBase(url, policy)
            , m_frame(0)
            , m_originPid(0)
            , m_targetType(TargetIsSubResource)
        {
            setHTTPReferrer(referrer);
        }
        
        ResourceRequest()
            : ResourceRequestBase(KURL(), UseProtocolCachePolicy)
            , m_frame(0)
            , m_originPid(0)
            , m_targetType(TargetIsSubResource)
        {
        }

        // Provides context for the resource request.
        Frame* frame() const { return m_frame; }
        void setFrame(Frame* frame) { m_frame = frame; }

        // What this request is for.
        void setTargetType(TargetType type) { m_targetType = type; }
        TargetType targetType() const { return m_targetType; }
        
        // The origin pid is the process id of the process from which this
        // request originated. In the case of out-of-process plugins, this
        // allows to link back the request to the plugin process (as it is
        // processed through a render view process).
        int originPid() const { return m_originPid; }
        void setOriginPid(int originPid) { m_originPid = originPid; }

        // Opaque buffer that describes the security state (including SSL
        // connection state) for the resource that should be reported when the
        // resource has been loaded.  This is used to simulate secure
        // connection for request (typically when showing error page, so the
        // error page has the errors of the page that actually failed).  Empty
        // string if not a secure connection.
        CString securityInfo() const { return m_securityInfo; }
        void setSecurityInfo(const CString& value) { m_securityInfo = value; }

    private:
        friend class ResourceRequestBase;

        void doUpdatePlatformRequest() {}
        void doUpdateResourceRequest() {}

        Frame* m_frame;
        int m_originPid;
        TargetType m_targetType;
        CString m_securityInfo;
    };

} // namespace WebCore

#endif