// ************************************************************************ // ***************************** CEF4Delphi ******************************* // ************************************************************************ // // CEF4Delphi is based on DCEF3 which uses CEF3 to embed a chromium-based // browser in Delphi applications. // // The original license of DCEF3 still applies to CEF4Delphi. // // For more information about CEF4Delphi visit : // https://www.briskbard.com/index.php?lang=en&pageid=cef // // Copyright © 2017 Salvador Díaz Fau. All rights reserved. // // ************************************************************************ // ************ vvvv Original license and comments below vvvv ************* // ************************************************************************ (* * Delphi Chromium Embedded 3 * * Usage allowed under the restrictions of the Lesser GNU General Public License * or alternatively the restrictions of the Mozilla Public License 1.1 * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for * the specific language governing rights and limitations under the License. * * Unit owner : Henri Gourvest * Web site : http://www.progdigy.com * Repository : http://code.google.com/p/delphichromiumembedded/ * Group : http://groups.google.com/group/delphichromiumembedded * * Embarcadero Technologies, Inc is not permitted to use or redistribute * this source code without explicit permission. * *) unit uCEFRequestHandler; {$IFNDEF CPUX64} {$ALIGN ON} {$MINENUMSIZE 4} {$ENDIF} interface uses uCEFBase, uCEFInterfaces, uCEFTypes; type TCefRequestHandlerOwn = class(TCefBaseOwn, ICefRequestHandler) protected function OnBeforeBrowse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; isRedirect: Boolean): Boolean; virtual; function OnOpenUrlFromTab(const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean): Boolean; virtual; function OnBeforeResourceLoad(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const callback: ICefRequestCallback): TCefReturnValue; virtual; function GetResourceHandler(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest): ICefResourceHandler; virtual; procedure OnResourceRedirect(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse; var newUrl: ustring); virtual; function OnResourceResponse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse): Boolean; virtual; function GetResourceResponseFilter(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse): ICefResponseFilter; virtual; procedure OnResourceLoadComplete(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse; status: TCefUrlRequestStatus; receivedContentLength: Int64); virtual; function GetAuthCredentials(const browser: ICefBrowser; const frame: ICefFrame; isProxy: Boolean; const host: ustring; port: Integer; const realm, scheme: ustring; const callback: ICefAuthCallback): Boolean; virtual; function OnQuotaRequest(const browser: ICefBrowser; const originUrl: ustring; newSize: Int64; const callback: ICefRequestCallback): Boolean; virtual; function GetCookieManager(const browser: ICefBrowser; const mainUrl: ustring): ICefCookieManager; virtual; procedure OnProtocolExecution(const browser: ICefBrowser; const url: ustring; out allowOsExecution: Boolean); virtual; function OnCertificateError(const browser: ICefBrowser; certError: TCefErrorcode; const requestUrl: ustring; const sslInfo: ICefSslInfo; const callback: ICefRequestCallback): Boolean; virtual; function OnSelectClientCertificate(const browser: ICefBrowser; isProxy: boolean; const host: ustring; port: integer; certificatesCount: NativeUInt; const certificates: TCefX509CertificateArray; const callback: ICefSelectClientCertificateCallback): boolean; virtual; procedure OnPluginCrashed(const browser: ICefBrowser; const pluginPath: ustring); virtual; procedure OnRenderViewReady(const browser: ICefBrowser); virtual; procedure OnRenderProcessTerminated(const browser: ICefBrowser; status: TCefTerminationStatus); virtual; public constructor Create; virtual; end; TCustomRequestHandler = class(TCefRequestHandlerOwn) protected FEvent: IChromiumEvents; function OnBeforeBrowse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; isRedirect: Boolean): Boolean; override; function OnOpenUrlFromTab(const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean): Boolean; override; function OnBeforeResourceLoad(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const callback: ICefRequestCallback): TCefReturnValue; override; function GetResourceHandler(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest): ICefResourceHandler; override; procedure OnResourceRedirect(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse; var newUrl: ustring); override; function OnResourceResponse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse): Boolean; override; function GetResourceResponseFilter(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse): ICefResponseFilter; override; procedure OnResourceLoadComplete(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse; status: TCefUrlRequestStatus; receivedContentLength: Int64); override; function GetAuthCredentials(const browser: ICefBrowser; const frame: ICefFrame; isProxy: Boolean; const host: ustring; port: Integer; const realm, scheme: ustring; const callback: ICefAuthCallback): Boolean; override; function OnQuotaRequest(const browser: ICefBrowser; const originUrl: ustring; newSize: Int64; const callback: ICefRequestCallback): Boolean; override; procedure OnProtocolExecution(const browser: ICefBrowser; const url: ustring; out allowOsExecution: Boolean); override; function OnCertificateError(const browser: ICefBrowser; certError: TCefErrorcode; const requestUrl: ustring; const sslInfo: ICefSslInfo; const callback: ICefRequestCallback): Boolean; override; function OnSelectClientCertificate(const browser: ICefBrowser; isProxy: boolean; const host: ustring; port: integer; certificatesCount: NativeUInt; const certificates: TCefX509CertificateArray; const callback: ICefSelectClientCertificateCallback): boolean; override; procedure OnPluginCrashed(const browser: ICefBrowser; const pluginPath: ustring); override; procedure OnRenderViewReady(const browser: ICefBrowser); override; procedure OnRenderProcessTerminated(const browser: ICefBrowser; status: TCefTerminationStatus); override; public constructor Create(const events: IChromiumEvents); reintroduce; virtual; end; implementation uses WinApi.Windows, System.SysUtils, uCEFMiscFunctions, uCEFLibFunctions, uCEFBrowser, uCEFFrame, uCEFRequest, uCEFRequestCallback, uCEFResponse, uCEFAuthCallback, uCEFSslInfo, uCEFSelectClientCertificateCallback, uCEFX509Certificate; function cef_request_handler_on_before_browse(self: PCefRequestHandler; browser: PCefBrowser; frame: PCefFrame; request: PCefRequest; isRedirect: Integer): Integer; stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do Result := Ord(OnBeforeBrowse(TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame), TCefRequestRef.UnWrap(request), isRedirect <> 0)); end; function cef_request_handler_on_open_urlfrom_tab(self: PCefRequestHandler; browser: PCefBrowser; frame: PCefFrame; const target_url: PCefString; target_disposition: TCefWindowOpenDisposition; user_gesture: Integer): Integer; stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do Result := Ord(OnOpenUrlFromTab(TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame), CefString(target_url), target_disposition, user_gesture <> 0)); end; function cef_request_handler_on_before_resource_load(self: PCefRequestHandler; browser: PCefBrowser; frame: PCefFrame; request: PCefRequest; callback: PCefRequestCallback): TCefReturnValue; stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do Result := OnBeforeResourceLoad( TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame), TCefRequestRef.UnWrap(request), TcefRequestCallbackRef.UnWrap(callback)); end; function cef_request_handler_get_resource_handler(self: PCefRequestHandler; browser: PCefBrowser; frame: PCefFrame; request: PCefRequest): PCefResourceHandler; stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do Result := CefGetData(GetResourceHandler(TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame), TCefRequestRef.UnWrap(request))); end; procedure cef_request_handler_on_resource_redirect(self: PCefRequestHandler; browser: PCefBrowser; frame: PCefFrame; const request: PCefRequest; response: PCefResponse; new_url: PCefString); stdcall; var url: ustring; begin url := CefString(new_url); with TCefRequestHandlerOwn(CefGetObject(self)) do OnResourceRedirect(TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame), TCefRequestRef.UnWrap(request), TCefResponseRef.UnWrap(response), url); if url <> '' then CefStringSet(new_url, url); end; function cef_request_handler_on_resource_response(self: PCefRequestHandler; browser: PCefBrowser; frame: PCefFrame; request: PCefRequest; response: PCefResponse): Integer; stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do Result := Ord(OnResourceResponse(TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame), TCefRequestRef.UnWrap(request), TCefResponseRef.UnWrap(response))); end; function cef_request_handler_get_resource_response_filter(self: PCefRequestHandler; browser: PCefBrowser; frame: PCefFrame; request: PCefRequest; response: PCefResponse): PCefResponseFilter; stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do Result := CefGetData(GetResourceResponseFilter(TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame), TCefRequestRef.UnWrap(request), TCefResponseRef.UnWrap(response))); end; procedure cef_request_handler_on_resource_load_complete(self: PCefRequestHandler; browser: PCefBrowser; frame: PCefFrame; request: PCefRequest; response: PCefResponse; status: TCefUrlRequestStatus; received_content_length: Int64); stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do OnResourceLoadComplete(TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame), TCefRequestRef.UnWrap(request), TCefResponseRef.UnWrap(response), status, received_content_length); end; function cef_request_handler_get_auth_credentials(self: PCefRequestHandler; browser: PCefBrowser; frame: PCefFrame; isProxy: Integer; const host: PCefString; port: Integer; const realm, scheme: PCefString; callback: PCefAuthCallback): Integer; stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do Result := Ord(GetAuthCredentials( TCefBrowserRef.UnWrap(browser), TCefFrameRef.UnWrap(frame), isProxy <> 0, CefString(host), port, CefString(realm), CefString(scheme), TCefAuthCallbackRef.UnWrap(callback))); end; function cef_request_handler_on_quota_request(self: PCefRequestHandler; browser: PCefBrowser; const origin_url: PCefString; new_size: Int64; callback: PCefRequestCallback): Integer; stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do Result := Ord(OnQuotaRequest(TCefBrowserRef.UnWrap(browser), CefString(origin_url), new_size, TCefRequestCallbackRef.UnWrap(callback))); end; procedure cef_request_handler_on_protocol_execution(self: PCefRequestHandler; browser: PCefBrowser; const url: PCefString; allow_os_execution: PInteger); stdcall; var allow: Boolean; begin allow := allow_os_execution^ <> 0; with TCefRequestHandlerOwn(CefGetObject(self)) do OnProtocolExecution( TCefBrowserRef.UnWrap(browser), CefString(url), allow); allow_os_execution^ := Ord(allow); end; function cef_request_handler_on_certificate_error(self: PCefRequestHandler; browser: PCefBrowser; cert_error: TCefErrorcode; const request_url: PCefString; ssl_info: PCefSslInfo; callback: PCefRequestCallback): Integer; stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do Result := Ord(OnCertificateError(TCefBrowserRef.UnWrap(browser), cert_error, CefString(request_url), TCefSslInfoRef.UnWrap(ssl_info), TCefRequestCallbackRef.UnWrap(callback))); end; procedure cef_request_handler_on_plugin_crashed(self: PCefRequestHandler; browser: PCefBrowser; const plugin_path: PCefString); stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do OnPluginCrashed(TCefBrowserRef.UnWrap(browser), CefString(plugin_path)); end; procedure cef_request_handler_on_render_view_ready(self: PCefRequestHandler; browser: PCefBrowser); stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do OnRenderViewReady(TCefBrowserRef.UnWrap(browser)); end; procedure cef_request_handler_on_render_process_terminated(self: PCefRequestHandler; browser: PCefBrowser; status: TCefTerminationStatus); stdcall; begin with TCefRequestHandlerOwn(CefGetObject(self)) do OnRenderProcessTerminated(TCefBrowserRef.UnWrap(browser), status); end; function cef_request_handler_on_select_client_certificate(self: PCefRequestHandler; browser: PCefBrowser; isProxy: integer; const host: PCefString; port: integer; certificatesCount: NativeUInt; const certificates: PPCefX509Certificate; callback: PCefSelectClientCertificateCallback): integer; stdcall; var TempCertArray : TCefX509CertificateArray; i : NativeUInt; begin TempCertArray := nil; Result := 0; try try if (certificatesCount > 0) and (certificates <> nil) then begin SetLength(TempCertArray, certificatesCount); i := 0; while (i < certificatesCount) do begin TempCertArray[i] := TCEFX509CertificateRef.UnWrap(PPointerArray(certificates)[i]); inc(i); end; with TCefRequestHandlerOwn(CefGetObject(self)) do Result := Ord(OnSelectClientCertificate(TCefBrowserRef.UnWrap(browser), (isProxy <> 0), CefString(host), port, certificatesCount, TempCertArray, TCefSelectClientCertificateCallbackRef.UnWrap(callback))); i := 0; while (i < certificatesCount) do begin TempCertArray[i] := nil; inc(i); end; end; except on e : exception do begin {$IFDEF DEBUG} OutputDebugString(PWideChar('cef_request_handler_on_select_client_certificate error: ' + e.Message + chr(0))); {$ENDIF} end; end; finally if (TempCertArray <> nil) then begin Finalize(TempCertArray); TempCertArray := nil; end; end; end; constructor TCefRequestHandlerOwn.Create; begin inherited CreateData(SizeOf(TCefRequestHandler)); with PCefRequestHandler(FData)^ do begin on_before_browse := cef_request_handler_on_before_browse; on_open_urlfrom_tab := cef_request_handler_on_open_urlfrom_tab; on_before_resource_load := cef_request_handler_on_before_resource_load; get_resource_handler := cef_request_handler_get_resource_handler; on_resource_redirect := cef_request_handler_on_resource_redirect; on_resource_response := cef_request_handler_on_resource_response; get_resource_response_filter := cef_request_handler_get_resource_response_filter; on_resource_load_complete := cef_request_handler_on_resource_load_complete; get_auth_credentials := cef_request_handler_get_auth_credentials; on_quota_request := cef_request_handler_on_quota_request; on_protocol_execution := cef_request_handler_on_protocol_execution; on_certificate_error := cef_request_handler_on_certificate_error; on_select_client_certificate := cef_request_handler_on_select_client_certificate; on_plugin_crashed := cef_request_handler_on_plugin_crashed; on_render_view_ready := cef_request_handler_on_render_view_ready; on_render_process_terminated := cef_request_handler_on_render_process_terminated; end; end; function TCefRequestHandlerOwn.GetAuthCredentials(const browser: ICefBrowser; const frame: ICefFrame; isProxy: Boolean; const host: ustring; port: Integer; const realm, scheme: ustring; const callback: ICefAuthCallback): Boolean; begin Result := False; end; function TCefRequestHandlerOwn.GetCookieManager(const browser: ICefBrowser; const mainUrl: ustring): ICefCookieManager; begin Result := nil; end; function TCefRequestHandlerOwn.OnBeforeBrowse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; isRedirect: Boolean): Boolean; begin Result := False; end; function TCefRequestHandlerOwn.OnBeforeResourceLoad(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const callback: ICefRequestCallback): TCefReturnValue; begin Result := RV_CONTINUE; end; function TCefRequestHandlerOwn.OnCertificateError(const browser: ICefBrowser; certError: TCefErrorcode; const requestUrl: ustring; const sslInfo: ICefSslInfo; const callback: ICefRequestCallback): Boolean; begin Result := False; end; function TCefRequestHandlerOwn.OnSelectClientCertificate(const browser : ICefBrowser; isProxy : boolean; const host : ustring; port : integer; certificatesCount : NativeUInt; const certificates : TCefX509CertificateArray; const callback : ICefSelectClientCertificateCallback): boolean; begin Result := False; end; function TCefRequestHandlerOwn.OnOpenUrlFromTab(const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean): Boolean; begin Result := False; end; function TCefRequestHandlerOwn.GetResourceHandler(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest): ICefResourceHandler; begin Result := nil; end; procedure TCefRequestHandlerOwn.OnPluginCrashed(const browser: ICefBrowser; const pluginPath: ustring); begin end; procedure TCefRequestHandlerOwn.OnProtocolExecution(const browser: ICefBrowser; const url: ustring; out allowOsExecution: Boolean); begin end; function TCefRequestHandlerOwn.OnQuotaRequest(const browser: ICefBrowser; const originUrl: ustring; newSize: Int64; const callback: ICefRequestCallback): Boolean; begin Result := False; end; procedure TCefRequestHandlerOwn.OnRenderProcessTerminated( const browser: ICefBrowser; status: TCefTerminationStatus); begin end; procedure TCefRequestHandlerOwn.OnRenderViewReady(const browser: ICefBrowser); begin end; procedure TCefRequestHandlerOwn.OnResourceRedirect(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse; var newUrl: ustring); begin end; function TCefRequestHandlerOwn.OnResourceResponse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse): Boolean; begin Result := False; end; function TCefRequestHandlerOwn.GetResourceResponseFilter( const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse): ICefResponseFilter; begin Result := nil; end; procedure TCefRequestHandlerOwn.OnResourceLoadComplete( const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse; status: TCefUrlRequestStatus; receivedContentLength: Int64); begin end; // TCustomRequestHandler constructor TCustomRequestHandler.Create(const events: IChromiumEvents); begin inherited Create; FEvent := events; end; function TCustomRequestHandler.GetAuthCredentials(const browser: ICefBrowser; const frame: ICefFrame; isProxy: Boolean; const host: ustring; port: Integer; const realm, scheme: ustring; const callback: ICefAuthCallback): Boolean; begin Result := FEvent.doOnGetAuthCredentials(browser, frame, isProxy, host, port, realm, scheme, callback); end; function TCustomRequestHandler.GetResourceHandler(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest): ICefResourceHandler; begin Result := FEvent.doOnGetResourceHandler(browser, frame, request); end; function TCustomRequestHandler.OnBeforeBrowse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; isRedirect: Boolean): Boolean; begin Result := FEvent.doOnBeforeBrowse(browser, frame, request, isRedirect); end; function TCustomRequestHandler.OnBeforeResourceLoad(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const callback: ICefRequestCallback): TCefReturnValue; begin Result := FEvent.doOnBeforeResourceLoad(browser, frame, request, callback); end; function TCustomRequestHandler.OnCertificateError(const browser: ICefBrowser; certError: TCefErrorcode; const requestUrl: ustring; const sslInfo: ICefSslInfo; const callback: ICefRequestCallback): Boolean; begin Result := FEvent.doOnCertificateError(browser, certError, requestUrl, sslInfo, callback); end; function TCustomRequestHandler.OnOpenUrlFromTab(const browser: ICefBrowser; const frame: ICefFrame; const targetUrl: ustring; targetDisposition: TCefWindowOpenDisposition; userGesture: Boolean): Boolean; begin Result := FEvent.doOnOpenUrlFromTab(browser, frame, targetUrl, targetDisposition, userGesture); end; function TCustomRequestHandler.OnSelectClientCertificate(const browser : ICefBrowser; isProxy : boolean; const host : ustring; port : integer; certificatesCount : NativeUInt; const certificates : TCefX509CertificateArray; const callback : ICefSelectClientCertificateCallback): boolean; begin Result := FEvent.doOnSelectClientCertificate(browser, isProxy, host, port, certificatesCount, certificates, callback); end; procedure TCustomRequestHandler.OnPluginCrashed(const browser: ICefBrowser; const pluginPath: ustring); begin FEvent.doOnPluginCrashed(browser, pluginPath); end; procedure TCustomRequestHandler.OnProtocolExecution(const browser: ICefBrowser; const url: ustring; out allowOsExecution: Boolean); begin FEvent.doOnProtocolExecution(browser, url, allowOsExecution); end; function TCustomRequestHandler.OnQuotaRequest(const browser: ICefBrowser; const originUrl: ustring; newSize: Int64; const callback: ICefRequestCallback): Boolean; begin Result := FEvent.doOnQuotaRequest(browser, originUrl, newSize, callback); end; procedure TCustomRequestHandler.OnRenderProcessTerminated( const browser: ICefBrowser; status: TCefTerminationStatus); begin FEvent.doOnRenderProcessTerminated(browser, status); end; procedure TCustomRequestHandler.OnRenderViewReady(const browser: ICefBrowser); begin FEvent.doOnRenderViewReady(browser); end; procedure TCustomRequestHandler.OnResourceRedirect(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse; var newUrl: ustring); begin FEvent.doOnResourceRedirect(browser, frame, request, response, newUrl); end; function TCustomRequestHandler.OnResourceResponse(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse): Boolean; begin Result := FEvent.doOnResourceResponse(browser, frame, request, response); end; function TCustomRequestHandler.GetResourceResponseFilter(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse): ICefResponseFilter; begin Result := FEvent.doOnGetResourceResponseFilter(browser, frame, request, response); end; procedure TCustomRequestHandler.OnResourceLoadComplete(const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse; status: TCefUrlRequestStatus; receivedContentLength: Int64); begin FEvent.doOnResourceLoadComplete(browser, frame, request, response, status, receivedContentLength); end; end.