cef/include/cef_request.h
Marshall Greenblatt fa5268fa2d Fix issues with request callbacks during browser shutdown (see issue #2622).
The behavior has changed as follows with NetworkService enabled:
- All pending and in-progress requests will now be aborted when the CEF context
  or associated browser is destroyed. The OnResourceLoadComplete callback will
  now also be called in this case for in-progress requests that have a handler.
- The CefResourceHandler::Cancel method will now always be called when resource
  handling is complete, irrespective of whether handling completed successfully.
- Request callbacks that arrive after the OnBeforeClose callback for the
  associated browser (which may happen for in-progress requests that are aborted
  on browser destruction) will now always have a non-nullptr CefBrowser
  parameter.
- Allow empty parameters to CefRequest and CefResponse methods where it makes
  sense (e.g. resetting default response state, or clearing a referrer value).
- Fixed a reference loop that was keeping CefResourceHandler objects from being
  destroyed if they were holding a callback reference (from ProcessRequest,
  ReadResponse, etc.) during CEF context or associated browser destruction.
- Fixed an issue where the main frame was not detached on browser destruction
  which could cause a crash due to RFH use-after-free (see issue #2498).

To test: All unit tests pass as expected.
2019-06-01 15:51:33 +03:00

355 lines
9.9 KiB
C++

// Copyright (c) 2012 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
// OWNER 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.
//
// ---------------------------------------------------------------------------
//
// The contents of this file must follow a specific format in order to
// support the CEF translator tool. See the translator.README.txt file in the
// tools directory for more information.
//
#ifndef CEF_INCLUDE_CEF_REQUEST_H_
#define CEF_INCLUDE_CEF_REQUEST_H_
#pragma once
#include <map>
#include <vector>
#include "include/cef_base.h"
class CefPostData;
class CefPostDataElement;
///
// Class used to represent a web request. The methods of this class may be
// called on any thread.
///
/*--cef(source=library,no_debugct_check)--*/
class CefRequest : public virtual CefBaseRefCounted {
public:
typedef std::multimap<CefString, CefString> HeaderMap;
typedef cef_referrer_policy_t ReferrerPolicy;
typedef cef_resource_type_t ResourceType;
typedef cef_transition_type_t TransitionType;
///
// Create a new CefRequest object.
///
/*--cef()--*/
static CefRefPtr<CefRequest> Create();
///
// Returns true if this object is read-only.
///
/*--cef()--*/
virtual bool IsReadOnly() = 0;
///
// Get the fully qualified URL.
///
/*--cef()--*/
virtual CefString GetURL() = 0;
///
// Set the fully qualified URL.
///
/*--cef()--*/
virtual void SetURL(const CefString& url) = 0;
///
// Get the request method type. The value will default to POST if post data
// is provided and GET otherwise.
///
/*--cef()--*/
virtual CefString GetMethod() = 0;
///
// Set the request method type.
///
/*--cef()--*/
virtual void SetMethod(const CefString& method) = 0;
///
// Set the referrer URL and policy. If non-empty the referrer URL must be
// fully qualified with an HTTP or HTTPS scheme component. Any username,
// password or ref component will be removed.
///
/*--cef(optional_param=referrer_url)--*/
virtual void SetReferrer(const CefString& referrer_url,
ReferrerPolicy policy) = 0;
///
// Get the referrer URL.
///
/*--cef()--*/
virtual CefString GetReferrerURL() = 0;
///
// Get the referrer policy.
///
/*--cef(default_retval=REFERRER_POLICY_DEFAULT)--*/
virtual ReferrerPolicy GetReferrerPolicy() = 0;
///
// Get the post data.
///
/*--cef()--*/
virtual CefRefPtr<CefPostData> GetPostData() = 0;
///
// Set the post data.
///
/*--cef()--*/
virtual void SetPostData(CefRefPtr<CefPostData> postData) = 0;
///
// Get the header values. Will not include the Referer value if any.
///
/*--cef()--*/
virtual void GetHeaderMap(HeaderMap& headerMap) = 0;
///
// Set the header values. If a Referer value exists in the header map it will
// be removed and ignored.
///
/*--cef()--*/
virtual void SetHeaderMap(const HeaderMap& headerMap) = 0;
///
// Returns the first header value for |name| or an empty string if not found.
// Will not return the Referer value if any. Use GetHeaderMap instead if
// |name| might have multiple values.
///
/*--cef()--*/
virtual CefString GetHeaderByName(const CefString& name) = 0;
///
// Set the header |name| to |value|. If |overwrite| is true any existing
// values will be replaced with the new value. If |overwrite| is false any
// existing values will not be overwritten. The Referer value cannot be set
// using this method.
///
/*--cef(optional_param=value)--*/
virtual void SetHeaderByName(const CefString& name,
const CefString& value,
bool overwrite) = 0;
///
// Set all values at one time.
///
/*--cef(optional_param=postData)--*/
virtual void Set(const CefString& url,
const CefString& method,
CefRefPtr<CefPostData> postData,
const HeaderMap& headerMap) = 0;
///
// Get the flags used in combination with CefURLRequest. See
// cef_urlrequest_flags_t for supported values.
///
/*--cef(default_retval=UR_FLAG_NONE)--*/
virtual int GetFlags() = 0;
///
// Set the flags used in combination with CefURLRequest. See
// cef_urlrequest_flags_t for supported values.
///
/*--cef()--*/
virtual void SetFlags(int flags) = 0;
///
// Get the URL to the first party for cookies used in combination with
// CefURLRequest.
///
/*--cef()--*/
virtual CefString GetFirstPartyForCookies() = 0;
///
// Set the URL to the first party for cookies used in combination with
// CefURLRequest.
///
/*--cef(optional_param=url)--*/
virtual void SetFirstPartyForCookies(const CefString& url) = 0;
///
// Get the resource type for this request. Only available in the browser
// process.
///
/*--cef(default_retval=RT_SUB_RESOURCE)--*/
virtual ResourceType GetResourceType() = 0;
///
// Get the transition type for this request. Only available in the browser
// process and only applies to requests that represent a main frame or
// sub-frame navigation.
///
/*--cef(default_retval=TT_EXPLICIT)--*/
virtual TransitionType GetTransitionType() = 0;
///
// Returns the globally unique identifier for this request or 0 if not
// specified. Can be used by CefResourceRequestHandler implementations in the
// browser process to track a single request across multiple callbacks.
///
/*--cef()--*/
virtual uint64 GetIdentifier() = 0;
};
///
// Class used to represent post data for a web request. The methods of this
// class may be called on any thread.
///
/*--cef(source=library,no_debugct_check)--*/
class CefPostData : public virtual CefBaseRefCounted {
public:
typedef std::vector<CefRefPtr<CefPostDataElement>> ElementVector;
///
// Create a new CefPostData object.
///
/*--cef()--*/
static CefRefPtr<CefPostData> Create();
///
// Returns true if this object is read-only.
///
/*--cef()--*/
virtual bool IsReadOnly() = 0;
///
// Returns true if the underlying POST data includes elements that are not
// represented by this CefPostData object (for example, multi-part file upload
// data). Modifying CefPostData objects with excluded elements may result in
// the request failing.
///
/*--cef()--*/
virtual bool HasExcludedElements() = 0;
///
// Returns the number of existing post data elements.
///
/*--cef()--*/
virtual size_t GetElementCount() = 0;
///
// Retrieve the post data elements.
///
/*--cef(count_func=elements:GetElementCount)--*/
virtual void GetElements(ElementVector& elements) = 0;
///
// Remove the specified post data element. Returns true if the removal
// succeeds.
///
/*--cef()--*/
virtual bool RemoveElement(CefRefPtr<CefPostDataElement> element) = 0;
///
// Add the specified post data element. Returns true if the add succeeds.
///
/*--cef()--*/
virtual bool AddElement(CefRefPtr<CefPostDataElement> element) = 0;
///
// Remove all existing post data elements.
///
/*--cef()--*/
virtual void RemoveElements() = 0;
};
///
// Class used to represent a single element in the request post data. The
// methods of this class may be called on any thread.
///
/*--cef(source=library,no_debugct_check)--*/
class CefPostDataElement : public virtual CefBaseRefCounted {
public:
///
// Post data elements may represent either bytes or files.
///
typedef cef_postdataelement_type_t Type;
///
// Create a new CefPostDataElement object.
///
/*--cef()--*/
static CefRefPtr<CefPostDataElement> Create();
///
// Returns true if this object is read-only.
///
/*--cef()--*/
virtual bool IsReadOnly() = 0;
///
// Remove all contents from the post data element.
///
/*--cef()--*/
virtual void SetToEmpty() = 0;
///
// The post data element will represent a file.
///
/*--cef()--*/
virtual void SetToFile(const CefString& fileName) = 0;
///
// The post data element will represent bytes. The bytes passed
// in will be copied.
///
/*--cef()--*/
virtual void SetToBytes(size_t size, const void* bytes) = 0;
///
// Return the type of this post data element.
///
/*--cef(default_retval=PDE_TYPE_EMPTY)--*/
virtual Type GetType() = 0;
///
// Return the file name.
///
/*--cef()--*/
virtual CefString GetFile() = 0;
///
// Return the number of bytes.
///
/*--cef()--*/
virtual size_t GetBytesCount() = 0;
///
// Read up to |size| bytes into |bytes| and return the number of bytes
// actually read.
///
/*--cef()--*/
virtual size_t GetBytes(size_t size, void* bytes) = 0;
};
#endif // CEF_INCLUDE_CEF_REQUEST_H_