250 lines
12 KiB
C++
250 lines
12 KiB
C++
// Copyright (c) 2011 Marshall A. Greenblatt. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the name Chromium Embedded
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// Framework nor the names of its contributors may be used to endorse
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// or promote products derived from this software without specific prior
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// written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// ---------------------------------------------------------------------------
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//
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// The contents of this file must follow a specific format in order to
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// support the CEF translator tool. See the translator.README.txt file in the
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// tools directory for more information.
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//
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#ifndef CEF_INCLUDE_CEF_RESOURCE_REQUEST_HANDLER_H_
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#define CEF_INCLUDE_CEF_RESOURCE_REQUEST_HANDLER_H_
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#pragma once
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#include "include/cef_base.h"
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#include "include/cef_browser.h"
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#include "include/cef_frame.h"
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#include "include/cef_request.h"
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#include "include/cef_request_callback.h"
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#include "include/cef_resource_handler.h"
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#include "include/cef_response.h"
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#include "include/cef_response_filter.h"
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class CefCookieAccessFilter;
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///
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// Implement this interface to handle events related to browser requests. The
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// methods of this class will be called on the IO thread unless otherwise
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// indicated.
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///
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/*--cef(source=client,no_debugct_check)--*/
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class CefResourceRequestHandler : public virtual CefBaseRefCounted {
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public:
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typedef cef_return_value_t ReturnValue;
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typedef cef_urlrequest_status_t URLRequestStatus;
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///
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// Called on the IO thread before a resource request is loaded. The |browser|
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// and |frame| values represent the source of the request, and may be NULL for
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// requests originating from service workers or CefURLRequest. To optionally
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// filter cookies for the request return a CefCookieAccessFilter object. The
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// |request| object cannot not be modified in this callback.
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///
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/*--cef(optional_param=browser,optional_param=frame)--*/
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virtual CefRefPtr<CefCookieAccessFilter> GetCookieAccessFilter(
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CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefRequest> request) {
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return NULL;
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}
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///
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// Called on the IO thread before a resource request is loaded. The |browser|
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// and |frame| values represent the source of the request, and may be NULL for
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// requests originating from service workers or CefURLRequest. To redirect or
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// change the resource load optionally modify |request|. Modification of the
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// request URL will be treated as a redirect. Return RV_CONTINUE to continue
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// the request immediately. Return RV_CONTINUE_ASYNC and call
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// CefRequestCallback:: Continue() at a later time to continue or cancel the
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// request asynchronously. Return RV_CANCEL to cancel the request immediately.
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//
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///
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/*--cef(optional_param=browser,optional_param=frame,
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default_retval=RV_CONTINUE)--*/
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virtual ReturnValue OnBeforeResourceLoad(
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CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefRequest> request,
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CefRefPtr<CefRequestCallback> callback) {
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return RV_CONTINUE;
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}
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///
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// Called on the IO thread before a resource is loaded. The |browser| and
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// |frame| values represent the source of the request, and may be NULL for
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// requests originating from service workers or CefURLRequest. To allow the
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// resource to load using the default network loader return NULL. To specify a
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// handler for the resource return a CefResourceHandler object. The |request|
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// object cannot not be modified in this callback.
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///
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/*--cef(optional_param=browser,optional_param=frame)--*/
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virtual CefRefPtr<CefResourceHandler> GetResourceHandler(
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CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefRequest> request) {
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return NULL;
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}
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///
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// Called on the IO thread when a resource load is redirected. The |browser|
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// and |frame| values represent the source of the request, and may be NULL for
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// requests originating from service workers or CefURLRequest. The |request|
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// parameter will contain the old URL and other request-related information.
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// The |response| parameter will contain the response that resulted in the
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// redirect. The |new_url| parameter will contain the new URL and can be
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// changed if desired. The |request| and |response| objects cannot be modified
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// in this callback.
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///
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/*--cef(optional_param=browser,optional_param=frame)--*/
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virtual void OnResourceRedirect(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefRequest> request,
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CefRefPtr<CefResponse> response,
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CefString& new_url) {}
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///
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// Called on the IO thread when a resource response is received. The |browser|
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// and |frame| values represent the source of the request, and may be NULL for
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// requests originating from service workers or CefURLRequest. To allow the
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// resource load to proceed without modification return false. To redirect or
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// retry the resource load optionally modify |request| and return true.
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// Modification of the request URL will be treated as a redirect. Requests
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// handled using the default network loader cannot be redirected in this
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// callback. The |response| object cannot be modified in this callback.
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//
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// WARNING: Redirecting using this method is deprecated. Use
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// OnBeforeResourceLoad or GetResourceHandler to perform redirects.
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///
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/*--cef(optional_param=browser,optional_param=frame)--*/
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virtual bool OnResourceResponse(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefRequest> request,
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CefRefPtr<CefResponse> response) {
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return false;
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}
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///
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// Called on the IO thread to optionally filter resource response content. The
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// |browser| and |frame| values represent the source of the request, and may
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// be NULL for requests originating from service workers or CefURLRequest.
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// |request| and |response| represent the request and response respectively
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// and cannot be modified in this callback.
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///
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/*--cef(optional_param=browser,optional_param=frame)--*/
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virtual CefRefPtr<CefResponseFilter> GetResourceResponseFilter(
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CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefRequest> request,
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CefRefPtr<CefResponse> response) {
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return NULL;
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}
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///
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// Called on the IO thread when a resource load has completed. The |browser|
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// and |frame| values represent the source of the request, and may be NULL for
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// requests originating from service workers or CefURLRequest. |request| and
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// |response| represent the request and response respectively and cannot be
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// modified in this callback. |status| indicates the load completion status.
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// |received_content_length| is the number of response bytes actually read.
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// This method will be called for all requests, including requests that are
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// aborted due to CEF shutdown or destruction of the associated browser. In
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// cases where the associated browser is destroyed this callback may arrive
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// after the CefLifeSpanHandler::OnBeforeClose callback for that browser. The
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// CefFrame::IsValid method can be used to test for this situation, and care
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// should be taken not to call |browser| or |frame| methods that modify state
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// (like LoadURL, SendProcessMessage, etc.) if the frame is invalid.
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///
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/*--cef(optional_param=browser,optional_param=frame)--*/
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virtual void OnResourceLoadComplete(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefRequest> request,
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CefRefPtr<CefResponse> response,
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URLRequestStatus status,
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int64 received_content_length) {}
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///
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// Called on the IO thread to handle requests for URLs with an unknown
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// protocol component. The |browser| and |frame| values represent the source
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// of the request, and may be NULL for requests originating from service
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// workers or CefURLRequest. |request| cannot be modified in this callback.
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// Set |allow_os_execution| to true to attempt execution via the registered OS
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// protocol handler, if any.
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// SECURITY WARNING: YOU SHOULD USE THIS METHOD TO ENFORCE RESTRICTIONS BASED
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// ON SCHEME, HOST OR OTHER URL ANALYSIS BEFORE ALLOWING OS EXECUTION.
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///
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/*--cef(optional_param=browser,optional_param=frame)--*/
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virtual void OnProtocolExecution(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefRequest> request,
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bool& allow_os_execution) {}
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};
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///
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// Implement this interface to filter cookies that may be sent or received from
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// resource requests. The methods of this class will be called on the IO thread
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// unless otherwise indicated.
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///
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/*--cef(source=client,no_debugct_check)--*/
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class CefCookieAccessFilter : public virtual CefBaseRefCounted {
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public:
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///
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// Called on the IO thread before a resource request is sent. The |browser|
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// and |frame| values represent the source of the request, and may be NULL for
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// requests originating from service workers or CefURLRequest. |request|
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// cannot be modified in this callback. Return true if the specified cookie
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// can be sent with the request or false otherwise.
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///
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/*--cef(optional_param=browser,optional_param=frame)--*/
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virtual bool CanSendCookie(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefRequest> request,
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const CefCookie& cookie) {
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return true;
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}
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///
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// Called on the IO thread after a resource response is received. The
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// |browser| and |frame| values represent the source of the request, and may
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// be NULL for requests originating from service workers or CefURLRequest.
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// |request| cannot be modified in this callback. Return true if the specified
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// cookie returned with the response can be saved or false otherwise.
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///
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/*--cef(optional_param=browser,optional_param=frame)--*/
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virtual bool CanSaveCookie(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefRequest> request,
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CefRefPtr<CefResponse> response,
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const CefCookie& cookie) {
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return true;
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}
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};
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#endif // CEF_INCLUDE_CEF_RESOURCE_REQUEST_HANDLER_H_
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