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TechniSatAPI.pas
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TechniSatAPI.pas
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unit TechniSatAPI;
{$mode objfpc}{$H+}
{$MACRO ON}
{____________________________________________________________
| _______________________________________________________ |
| | | |
| | Remote API for TechniSat based devices | |
| | (c) 2019 Alexander Feuster ([email protected]) | |
| | http://www.github.com/feuster | |
| |_______________________________________________________| |
|___________________________________________________________}
//define API basics
{$DEFINE APIVERSION:='1.1'}
//{$DEFINE TSAPI_DEBUG}
{___________________________________________________________}
interface
uses
Classes, SysUtils, IdUDPClient, IdStack, IdGlobal, StrUtils, XMLRead, DOM
{$IFDEF LCL}, Forms{$IFDEF TSAPI_DEBUG}, Dialogs{$ENDIF}{$ENDIF}
;
function tsapi_Info_DeviceList(TimeoutMS: Integer): TStringList;
function tsapi_Info_DeviceInformation(URL: String; TimeoutMS: Integer): TStringList;
function tsapi_Info_GetURLByDeviceList(SearchCriteria: String; TimeoutMS: Integer): String;
function tsapi_Info_Authentication(URL: String; PIN: String; TimeoutMS: Integer): Boolean;
function tsapi_Info_KeepAlive(URL: String; TimeoutMS: Integer): Boolean;
function tsapi_rcuButtonRequest(URL: String; PIN: String; ButtonCode: Byte; ButtonState: String; TimeoutMS: Integer): Boolean;
function tsapi_rcuButtonRequestByName(DeviceName: String; PIN: String; ButtonCode: Byte; ButtonState: String; TimeoutMS: Integer): Boolean;
function tsapi_rcuButtonRequestBySerial(Serial: String; PIN: String; ButtonCode: Byte; ButtonState: String; TimeoutMS: Integer): Boolean;
function tsapi_zoomRequest(URL: String; PIN: String; ZoomValue: Integer; TimeoutMS: Integer): Boolean;
function tsapi_mouseMoveRequest(URL: String; PIN: String; deltaX: Integer; deltaY: Integer; TimeoutMS: Integer): Boolean;
function tsapi_mouseScrollRequest(URL: String; PIN: String; deltaS: Integer; TimeoutMS: Integer): Boolean;
function tsapi_mouseClickRequest(URL: String; PIN: String; MouseButton: String; MouseState: String; TimeoutMS: Integer): Boolean;
function tsapi_inputTextRequest(URL: String; PIN: String; InputText: String; Enter: Boolean; TimeoutMS: Integer): Boolean;
function tsapi_BtnCodeByName(ButtonName: String): Byte;
function tsapi_BtnDescByName(ButtonName: String): String;
function tsapi_BtnNameByCode(ButtonCode: Byte): String;
function tsapi_BtnDescByCode(ButtonCode: Byte): String;
type
TButton = record
Code: Byte;
Name: String;
Description: String;
end;
{$IFDEF TSAPI_DEBUG}
var
//storage variable for last debug message
tsapi_Debug_NoShowMessage: Boolean;
tsapi_Debug_Message: String;
{$ENDIF}
const
API_Version: String = APIVERSION;
{$IFDEF TSAPI_DEBUG}
//Debug message strings
STR_Error: String = 'Debug: Error: ';
STR_Info: String = 'Debug: Info: ';
STR_Space: String = ' ';
//Define DEBUG constant
TSAPI_DEBUG: Boolean = true;
{$ELSE}
TSAPI_DEBUG: Boolean = false;
{$ENDIF}
API_License: String = '--------------------------------------------------------------------------------'+#13#10#13#10+
'TechniSat API V'+APIVERSION+' (c) 2019 Alexander Feuster ([email protected])'+#13#10+
'http://www.github.com/feuster'+#13#10+
'This API is provided "as-is" without any warranties for any data loss,'+#13#10+
'device defects etc. Use at own risk!'+#13#10+
'Free for personal use. Commercial use is prohibited without permission.'+#13#10#13#10+
'--------------------------------------------------------------------------------'+#13#10#13#10+
'Indy BSD License'+#13#10+
#13#10+
'Copyright'+#13#10+
#13#10+
'Portions of this software are Copyright (c) 1993 - 2003, Chad Z. Hower (Kudzu)'+#13#10+
'and the Indy Pit Crew - http://www.IndyProject.org/'+#13#10+
#13#10+
'License'+#13#10+
#13#10+
'Redistribution and use in source and binary forms, with or without modification,'+#13#10+
'are permitted provided that the following conditions are met: Redistributions'+#13#10+
'of source code must retain the above copyright notice, this list of conditions'+#13#10+
'and the following disclaimer.'+#13#10+
#13#10+
'Redistributions in binary form must reproduce the above copyright notice, this'+#13#10+
'list of conditions and the following disclaimer in the documentation, about box'+#13#10+
'and/or other materials provided with the distribution.'+#13#10+
#13#10+
'No personal names or organizations names associated with the Indy project may'+#13#10+
'be used to endorse or promote products derived from this software without'+#13#10+
'specific prior written permission of the specific individual or organization.'+#13#10+
#13#10+
'THIS SOFTWARE IS PROVIDED BY Chad Z. Hower (Kudzu) and the Indy Pit Crew "AS'+#13#10+
'IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE'+#13#10+
'IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE'+#13#10+
'DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY'+#13#10+
'DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES'+#13#10+
'(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;'+#13#10+
'LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON'+#13#10+
'ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT'+#13#10+
'(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS'+#13#10+
'SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.'+#13#10#13#10+
'-------------------------[scroll up for full License]--------------------------'+#13#10#13#10;
tsapi_deviceDiscoveryRequest: String = '<deviceDiscoveryRequest/>';
tsapi_deviceInformationRequest: String = '<deviceInformationRequest/>';
tsapi_keepAliveRequest: String = '<keepAliveRequest/>';
tsapi_keepAliveResponse: String = '<keepAliveResponse/>';
tsapi_ListenerPort: Integer = 8090;
tsapi_TimeoutMS_Max: Integer = 1000;
tsapi_ButtonState_pressed: String = 'pressed';
tsapi_ButtonState_released: String = 'released';
tsapi_ButtonState_hold: String = 'hold';
tsapi_ButtonStates: array[0..2] of String = ('pressed', 'released', 'hold');
tsapi_MouseState_pressed: String = 'pressed';
tsapi_MouseState_released: String = 'released';
tsapi_MouseButtons: array[0..2] of String = ('left', 'middle', 'right');
tsapi_MouseStates: array[0..1] of String = ('pressed', 'released');
tsapi_Buttons: array[0..128] of TButton =
(
(Code: 0; Name: 'BTN_0'; Description: '0'),
(Code: 1; Name: 'BTN_1'; Description: '1'),
(Code: 2; Name: 'BTN_2'; Description: '2'),
(Code: 3; Name: 'BTN_3'; Description: '3'),
(Code: 4; Name: 'BTN_4'; Description: '4'),
(Code: 5; Name: 'BTN_5'; Description: '5'),
(Code: 6; Name: 'BTN_6'; Description: '6'),
(Code: 7; Name: 'BTN_7'; Description: '7'),
(Code: 8; Name: 'BTN_8'; Description: '8'),
(Code: 9; Name: 'BTN_9'; Description: '9'),
(Code: 10; Name: 'BTN_SWITCHDEC'; Description: 'SWITCH DEC'),
(Code: 11; Name: 'BTN_STANDBY'; Description: 'STANDBY'),
(Code: 12; Name: 'BTN_MUTE'; Description: 'MUTE'),
(Code: 13; Name: 'BTN_NOTUSED13'; Description: 'BUTTON 13 NOT USED'),
(Code: 14; Name: 'BTN_LIST'; Description: 'LIST'),
(Code: 15; Name: 'BTN_VOL_UP'; Description: 'VOLUME UP'),
(Code: 16; Name: 'BTN_VOL_DOWN'; Description: 'VOLUME DOWN'),
(Code: 17; Name: 'BTN_HELP'; Description: 'HELP'),
(Code: 18; Name: 'BTN_PROG_UP'; Description: 'PROGRAM UP'),
(Code: 19; Name: 'BTN_PROG_DOWN'; Description: 'PROGRAM DOWN'),
(Code: 20; Name: 'BTN_BACK'; Description: 'BACK'),
(Code: 21; Name: 'BTN_AUDIO'; Description: 'AUDIO'),
(Code: 22; Name: 'BTN_STILL'; Description: 'STILL'),
(Code: 23; Name: 'BTN_EPG'; Description: 'SFI/EPG'),
(Code: 24; Name: 'BTN_EXT'; Description: 'EXT'),
(Code: 25; Name: 'BTN_TXT'; Description: 'TELETEXT'),
(Code: 26; Name: 'BTN_OFF'; Description: 'OFF'),
(Code: 27; Name: 'BTN_TOGGLEIRC'; Description: 'TOGGLE IRC'),
(Code: 28; Name: 'BTN_TVSAT'; Description: 'TV/SAT'),
(Code: 29; Name: 'BTN_INFO'; Description: 'INFO'),
(Code: 30; Name: 'BTN_UP'; Description: 'UP'),
(Code: 31; Name: 'BTN_DOWN'; Description: 'DOWN'),
(Code: 32; Name: 'BTN_MENU'; Description: 'MENU'),
(Code: 33; Name: 'BTN_TVRADIO'; Description: 'TV/RADIO'),
(Code: 34; Name: 'BTN_LEFT'; Description: 'LEFT'),
(Code: 35; Name: 'BTN_RIGHT'; Description: 'RIGHT'),
(Code: 36; Name: 'BTN_OK'; Description: 'OK'),
(Code: 37; Name: 'BTN_RED'; Description: 'RED'),
(Code: 38; Name: 'BTN_GREEN'; Description: 'GREEN'),
(Code: 39; Name: 'BTN_YELLOW'; Description: 'YELLOW'),
(Code: 40; Name: 'BTN_BLUE'; Description: 'BLUE'),
(Code: 41; Name: 'BTN_OPTION'; Description: 'OPTION'),
(Code: 42; Name: 'BTN_SLEEP'; Description: 'SLEEP'),
(Code: 43; Name: 'BTN_REC'; Description: 'RECORD'),
(Code: 44; Name: 'BTN_PIP'; Description: 'PIP/PAP'),
(Code: 45; Name: 'BTN_ZOOM'; Description: 'ZOOM'),
(Code: 46; Name: 'BTN_GENRE'; Description: 'GENRE'),
(Code: 47; Name: 'BTN_HDMI'; Description: 'HDMI'),
(Code: 48; Name: 'BTN_MORE'; Description: 'MORE'),
(Code: 49; Name: 'BTN_REWIND'; Description: 'REWIND'),
(Code: 50; Name: 'BTN_STOP'; Description: 'STOP'),
(Code: 51; Name: 'BTN_PLAYPAUSE'; Description: 'PLAY/PAUSE'),
(Code: 52; Name: 'BTN_WIND'; Description: 'FORWARD WIND'),
(Code: 53; Name: 'BTN_CODESAT1'; Description: 'CODE SAT1'),
(Code: 54; Name: 'BTN_CODESAT2'; Description: 'CODE SAT2'),
(Code: 55; Name: 'BTN_CODETV1'; Description: 'CODE TV1'),
(Code: 56; Name: 'BTN_CODETV2'; Description: 'CODE TV2'),
(Code: 57; Name: 'BTN_CODEVCR1'; Description: 'CODE VCR1'),
(Code: 58; Name: 'BTN_CODEVCR2'; Description: 'CODE VCR2'),
(Code: 59; Name: 'BTN_FREESATBACK';Description: 'FREESAT BACK'),
(Code: 60; Name: 'BTN_AD'; Description: 'AD'),
(Code: 61; Name: 'BTN_SUBTITLE'; Description: 'SUBTITLE'),
(Code: 62; Name: 'BTN_NAV'; Description: 'NAVIGATION'),
(Code: 63; Name: 'BTN_PAGEUP'; Description: 'PAGE UP'),
(Code: 64; Name: 'BTN_PAGEDOWN'; Description: 'PAGE DOWN'),
(Code: 65; Name: 'BTN_PVR'; Description: 'PVR'),
(Code: 66; Name: 'BTN_WWW'; Description: 'WWW'),
(Code: 67; Name: 'BTN_TIMER'; Description: 'TIMER'),
(Code: 68; Name: 'BTN_NOTUSED68'; Description: 'BUTTON 68 NOT USED'),
(Code: 69; Name: 'BTN_NOTUSED69'; Description: 'BUTTON 69 NOT USED'),
(Code: 70; Name: 'BTN_NOTUSED70'; Description: 'BUTTON 70 NOT USED'),
(Code: 71; Name: 'BTN_NOTUSED71'; Description: 'BUTTON 71 NOT USED'),
(Code: 72; Name: 'BTN_NOTUSED72'; Description: 'BUTTON 72 NOT USED'),
(Code: 73; Name: 'BTN_NOTUSED73'; Description: 'BUTTON 73 NOT USED'),
(Code: 74; Name: 'BTN_NOTUSED74'; Description: 'BUTTON 74 NOT USED'),
(Code: 75; Name: 'BTN_NOTUSED75'; Description: 'BUTTON 75 NOT USED'),
(Code: 76; Name: 'BTN_NOTUSED76'; Description: 'BUTTON 76 NOT USED'),
(Code: 77; Name: 'BTN_NOTUSED77'; Description: 'BUTTON 77 NOT USED'),
(Code: 78; Name: 'BTN_NOTUSED78'; Description: 'BUTTON 78 NOT USED'),
(Code: 79; Name: 'BTN_NOTUSED79'; Description: 'BUTTON 79 NOT USED'),
(Code: 80; Name: 'BTN_NOTUSED80'; Description: 'BUTTON 80 NOT USED'),
(Code: 81; Name: 'BTN_NOTUSED80'; Description: 'BUTTON 81 NOT USED'),
(Code: 82; Name: 'BTN_NOTUSED80'; Description: 'BUTTON 82 NOT USED'),
(Code: 83; Name: 'BTN_NOTUSED80'; Description: 'BUTTON 83 NOT USED'),
(Code: 84; Name: 'BTN_NOTUSED80'; Description: 'BUTTON 84 NOT USED'),
(Code: 85; Name: 'BTN_NOTUSED80'; Description: 'BUTTON 85 NOT USED'),
(Code: 86; Name: 'BTN_NOTUSED80'; Description: 'BUTTON 86 NOT USED'),
(Code: 87; Name: 'BTN_NOTUSED80'; Description: 'BUTTON 87 NOT USED'),
(Code: 88; Name: 'BTN_NOTUSED80'; Description: 'BUTTON 88 NOT USED'),
(Code: 89; Name: 'BTN_NOTUSED80'; Description: 'BUTTON 89 NOT USED'),
(Code: 90; Name: 'BTN_NOTUSED90'; Description: 'BUTTON 90 NOT USED'),
(Code: 91; Name: 'BTN_NOTUSED91'; Description: 'BUTTON 91 NOT USED'),
(Code: 92; Name: 'BTN_NOTUSED92'; Description: 'BUTTON 92 NOT USED'),
(Code: 93; Name: 'BTN_NOTUSED93'; Description: 'BUTTON 93 NOT USED'),
(Code: 94; Name: 'BTN_NOTUSED94'; Description: 'BUTTON 94 NOT USED'),
(Code: 95; Name: 'BTN_NOTUSED95'; Description: 'BUTTON 95 NOT USED'),
(Code: 96; Name: 'BTN_NOTUSED96'; Description: 'BUTTON 96 NOT USED'),
(Code: 97; Name: 'BTN_NOTUSED97'; Description: 'BUTTON 97 NOT USED'),
(Code: 98; Name: 'BTN_NOTUSED98'; Description: 'BUTTON 98 NOT USED'),
(Code: 99; Name: 'BTN_NOTUSED99'; Description: 'BUTTON 99 NOT USED'),
(Code: 100; Name: 'BTN_NOTUSED100'; Description: 'BUTTON 100 NOT USED'),
(Code: 101; Name: 'BTN_NOTUSED101'; Description: 'BUTTON 101 NOT USED'),
(Code: 102; Name: 'BTN_NOTUSED102'; Description: 'BUTTON 102 NOT USED'),
(Code: 103; Name: 'BTN_NOTUSED103'; Description: 'BUTTON 103 NOT USED'),
(Code: 104; Name: 'BTN_NOTUSED104'; Description: 'BUTTON 104 NOT USED'),
(Code: 105; Name: 'BTN_NOTUSED105'; Description: 'BUTTON 105 NOT USED'),
(Code: 106; Name: 'BTN_KBDF1'; Description: 'KEYBOARD F1'),
(Code: 107; Name: 'BTN_KBDF2'; Description: 'KEYBOARD F2'),
(Code: 108; Name: 'BTN_KBDF3'; Description: 'KEYBOARD F3'),
(Code: 109; Name: 'BTN_KBDF4'; Description: 'KEYBOARD F4'),
(Code: 110; Name: 'BTN_KBDF5'; Description: 'KEYBOARD F5'),
(Code: 111; Name: 'BTN_KBDF6'; Description: 'KEYBOARD F6'),
(Code: 112; Name: 'BTN_KBDF7'; Description: 'KEYBOARD F7'),
(Code: 113; Name: 'BTN_KBDF8'; Description: 'KEYBOARD F8'),
(Code: 114; Name: 'BTN_KBDF9'; Description: 'KEYBOARD F9'),
(Code: 115; Name: 'BTN_KBDF10'; Description: 'KEYBOARD F10'),
(Code: 116; Name: 'BTN_KBDF11'; Description: 'KEYBOARD F11'),
(Code: 117; Name: 'BTN_KBDF12'; Description: 'KEYBOARD F12'),
(Code: 118; Name: 'BTN_SOFTKEY1'; Description: 'SOFTKEY 1'),
(Code: 119; Name: 'BTN_SOFTKEY2'; Description: 'SOFTKEY 2'),
(Code: 120; Name: 'BTN_SOFTKEY3'; Description: 'SOFTKEY 3'),
(Code: 121; Name: 'BTN_SOFTKEY4'; Description: 'SOFTKEY 4'),
(Code: 122; Name: 'BTN_KBDINFO'; Description: 'KEYBOARD INFO'),
(Code: 123; Name: 'BTN_KBDDOWN'; Description: 'KEYBOARD DOWN'),
(Code: 124; Name: 'BTN_KBDUP'; Description: 'KEYBOARD UP'),
(Code: 125; Name: 'BTN_KBDMODE'; Description: 'KEYBOARD MODE'),
(Code: 126; Name: 'BTN_DOFLASH'; Description: 'DO FLASH RESET'),
(Code: 127; Name: 'BTN_NOTDEFINED'; Description: 'BUTTON NOT DEFINED'),
(Code: 128; Name: 'BTN_INVALID'; Description: 'BUTTON INVALID')
);
implementation
{$IFDEF TSAPI_DEBUG}
procedure DebugPrint(DebugText: String);
//generate debug messages for Console or GUI application
begin
tsapi_Debug_Message:=tsapi_Debug_Message+#13#10+DebugText;
{$IFNDEF LCL}
WriteLn(tsapi_Debug_Message);
{$ELSE}
if fsapi_Debug_NoShowMessage=false then
ShowMessage(tsapi_Debug_Message);
{$ENDIF}
end;
{$ENDIF}
//------------------------------------------------------------------------------
// Helper functions
//------------------------------------------------------------------------------
function tsapi_BtnCodeByName(ButtonName: String): Byte;
//read button code from given button name
var
Counter: Byte;
begin
//set default result to invalid button
Result:=128;
//Check if string is not empty
if ButtonName='' then
exit;
//allow also KEY_ for BTN_
if LeftStr(UpperCase(ButtonName),4)='KEY_' then
ButtonName:=StringReplace(ButtonName, 'KEY_', 'BTN_', [rfReplaceAll, rfIgnoreCase]);
//Check if string starts with BTN_
if LeftStr(UpperCase(ButtonName),4)<>'BTN_' then
exit;
//Read code from array
for Counter:=0 to Length(tsapi_Buttons) do
begin
if tsapi_Buttons[Counter].Name=UpperCase(ButtonName) then
begin
Result:=tsapi_Buttons[Counter].Code;
exit;
end;
end;
end;
function tsapi_BtnDescByName(ButtonName: String): String;
//read button description from given button name
begin
Result:=tsapi_BtnDescByCode(tsapi_BtnCodeByName(ButtonName));
end;
function tsapi_BtnNameByCode(ButtonCode: Byte): String;
//read button name from given button code
begin
//set default result to invalid button
Result:=tsapi_Buttons[128].Name;
//Check if button code is valid
if ButtonCode>128 then
exit;
//Read name from array
Result:=tsapi_Buttons[ButtonCode].Name;
end;
function tsapi_BtnDescByCode(ButtonCode: Byte): String;
//read button description from given button code
begin
//set default result to invalid button
Result:=tsapi_Buttons[128].Description;
//Check if button code is valid
if ButtonCode>128 then
exit;
//Read name from array
Result:=tsapi_Buttons[ButtonCode].Description;
end;
//------------------------------------------------------------------------------
// Info
//------------------------------------------------------------------------------
function tsapi_Info_DeviceList(TimeoutMS: Integer): TStringList;
//List available devices from network
var
Buffer: String;
DeviceList: TStringList;
UDPClient: TIdUDPClient;
UDPPeerPort: Word;
UDPPeerIP: String;
Response: String;
XMLBuffer: TStringStream;
XML: TXMLDocument;
Node: TDOMNode;
begin
try
UDPClient:=TIdUDPClient.Create(nil);
DeviceList:=TStringList.Create;
DeviceList.TextLineBreakStyle:=tlbsCRLF;
DeviceList.Duplicates:=dupIgnore;
DeviceList.SortStyle:=sslAuto;
try
//send discovery request broadcast
UDPClient.BoundIP:=GStack.LocalAddress;
UDPClient.BoundPort:=tsapi_ListenerPort;
UDPClient.Port:=tsapi_ListenerPort;
UDPClient.BroadcastEnabled:=true;
UDPClient.Send('255.255.255.255', tsapi_ListenerPort, tsapi_deviceDiscoveryRequest);
UDPClient.Send('255.255.255.255', tsapi_ListenerPort, tsapi_deviceDiscoveryRequest);
UDPClient.Send('255.255.255.255', tsapi_ListenerPort, tsapi_deviceDiscoveryRequest);
//check for discovery request answers
if TimeoutMS>0 then
UDPClient.ReceiveTimeout:=TimeoutMS
else
UDPClient.ReceiveTimeout:=tsapi_TimeoutMS_Max;
repeat
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Response:=UDPClient.ReceiveString(UDPPeerIP, UDPPeerPort);
//discovery request response received
if (UDPPeerPort<>0) and (GStack.LocalAddress<>UDPPeerIP) then
begin
{$IFDEF TSAPI_DEBUG}{$IFNDEF LCL}
WriteLn(STR_Info,'Response from ',Format('%s:%d', [UDPPeerIP, UDPPeerPort]));
writeln(STR_Info,'tsapi_Info_DeviceList -> RESPONSE BEGIN');
writeln('--------------------------------------------------------------------------------');
Writeln(Response);
writeln('--------------------------------------------------------------------------------');
writeln(STR_Info,'tsapi_Info_DeviceList -> RESPONSE END'+#13#10+#13#10);
{$ENDIF}{$ENDIF}
//extract device infos from response
if AnsiPos('deviceDiscoveryResponse', Response)>0 then
begin
Buffer:=UDPPeerIP+'|';
XMLBuffer:=TStringStream.Create(Trim(Response));
ReadXMLFile(XML, XMLBuffer);
Node:=XML.DocumentElement.ParentNode.FirstChild;
if Node<>NIL then
begin
Buffer:=Buffer+(String(Node.Attributes.GetNamedItem('name').NodeValue))+'|';
Buffer:=Buffer+(String(Node.Attributes.GetNamedItem('type').NodeValue))+'|';
Buffer:=Buffer+(String(Node.Attributes.GetNamedItem('serial').NodeValue))+'|';
Buffer:=Buffer+(String(Node.Attributes.GetNamedItem('version').NodeValue));
end;
if Node<>NIL then Node.Free;
if XML<>NIL then XML.Free;
if XMLBuffer<>NIL then XMLBuffer.Free;
DeviceList.Add(Buffer);
end;
end;
until UDPPeerPort=0;
//sort list
DeviceList.Sort;
finally
UDPClient.Free;
end;
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Result:=DeviceList;
except
on E:Exception do
begin
{$IFDEF FSAPI_DEBUG}E.Message:=STR_Error+'tsapi_Info_DeviceList -> '+E.Message; DebugPrint(E.Message);{$ENDIF}
Result:=DeviceList;
end;
end;
end;
function tsapi_Info_DeviceInformation(URL: String; TimeoutMS: Integer): TStringList;
//List device information
var
DeviceInfo: TStringList;
UDPClient: TIdUDPClient;
UDPPeerPort: Word;
UDPPeerIP: String;
Response: String;
XMLBuffer: TStringStream;
XML: TXMLDocument;
Node: TDOMNode;
Node2: TDOMNode;
Node3: TDOMNode;
Counter: LongWord;
Counter2: LongWord;
Buffer: String;
begin
try
UDPClient:=TIdUDPClient.Create(nil);
DeviceInfo:=TStringList.Create;
DeviceInfo.TextLineBreakStyle:=tlbsCRLF;
DeviceInfo.Duplicates:=dupIgnore;
DeviceInfo.SortStyle:=sslAuto;
//check if URL is available
if URL='' then
begin
Result:=DeviceInfo;
exit;
end;
try
//send device information
UDPClient.BoundIP:=GStack.LocalAddress;
UDPClient.BoundPort:=tsapi_ListenerPort;
UDPClient.Port:=tsapi_ListenerPort;
UDPClient.BroadcastEnabled:=true;
UDPClient.Send(URL, tsapi_ListenerPort, tsapi_deviceInformationRequest);
//check for device information request answers
if TimeoutMS>0 then
UDPClient.ReceiveTimeout:=TimeoutMS
else
UDPClient.ReceiveTimeout:=tsapi_TimeoutMS_Max;
repeat
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Response:=UDPClient.ReceiveString(UDPPeerIP, UDPPeerPort);
//discovery request response received
if (UDPPeerPort<>0) and (GStack.LocalAddress<>UDPPeerIP) then
begin
{$IFDEF TSAPI_DEBUG}{$IFNDEF LCL}
WriteLn(STR_Info,'Response from ',Format('%s:%d', [UDPPeerIP, UDPPeerPort]));
writeln(STR_Info,'tsapi_Info_DeviceInformation -> RESPONSE BEGIN');
writeln('--------------------------------------------------------------------------------');
Writeln(Response);
writeln('--------------------------------------------------------------------------------');
writeln(STR_Info,'tsapi_Info_DeviceInformation -> RESPONSE END'+#13#10+#13#10);
{$ENDIF}{$ENDIF}
//extract device infos from response
if AnsiPos('deviceInformationResponse', Response)>0 then
begin
XMLBuffer:=TStringStream.Create(Trim(Response));
ReadXMLFile(XML, XMLBuffer);
Node:=XML.DocumentElement.ParentNode.FirstChild;
if Node<>NIL then
begin
for Counter:=0 to Node.Attributes.Length-1 do
begin
if String(Node.Attributes.Item[Counter].NodeValue)<>'' then
begin
Buffer:=String(Node.Attributes.Item[Counter].NodeName+'='+Node.Attributes.Item[Counter].NodeValue);
DeviceInfo.Add(Trim(Buffer));
end;
end;
//extract additional information like capabilities
for Counter:=0 to Node.GetChildNodes.Count-1 do
begin
Node2:=Node.GetChildNodes.Item[Counter];
if String(Node2.NodeName)<>'' then
begin
for Counter2:=0 to Node2.GetChildNodes.Count-1 do
begin
Buffer:=String(Node2.NodeName+':'+Node2.GetChildNodes.Item[Counter2].NodeName+Node2.GetChildNodes.Item[Counter2].NodeValue);
Node3:=Node2.GetChildNodes.Item[Counter2].FirstChild;
if Node3<>NIL then
begin
if String(Node3.NodeValue)<>'' then
Buffer:=Buffer+'='+String(Node3.NodeValue);
end;
DeviceInfo.Add(Trim(Buffer));
end;
end;
end;
end;
//clean up variables
if Node<>NIL then Node.Free;
if Node2<>NIL then Node2.Free;
if Node3<>NIL then Node3.Free;
if XML<>NIL then XML.Free;
if XMLBuffer<>NIL then XMLBuffer.Free;
end;
end;
until UDPPeerPort=0;
//sort list
DeviceInfo.Sort;
finally
UDPClient.Free;
end;
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Result:=DeviceInfo;
except
on E:Exception do
begin
{$IFDEF FSAPI_DEBUG}E.Message:=STR_Error+'tsapi_Info_DeviceInformation -> '+E.Message; DebugPrint(E.Message);{$ENDIF}
Result:=DeviceInfo;
end;
end;
end;
function tsapi_Info_Authentication(URL: String; PIN: String; TimeoutMS: Integer): Boolean;
//Device authentication with PIN
var
Authentication: Boolean;
UDPClient: TIdUDPClient;
UDPPeerPort: Word;
UDPPeerIP: String;
Response: String;
XMLBuffer: TStringStream;
XML: TXMLDocument;
Node: TDOMNode;
begin
try
UDPClient:=TIdUDPClient.Create(nil);
Authentication:=false;
//check if URL is available
if URL='' then
begin
Result:=Authentication;
exit;
end;
//check if PIN is available, if not try fallback to default value
if PIN='' then PIN:='0000';
try
//send authentication request
UDPClient.BoundIP:=GStack.LocalAddress;
UDPClient.BoundPort:=tsapi_ListenerPort;
UDPClient.Port:=tsapi_ListenerPort;
UDPClient.BroadcastEnabled:=true;
UDPClient.Send(URL, tsapi_ListenerPort, '<authenticationRequest pin="'+PIN+'"/>');
//check authentication request answer
if TimeoutMS>0 then
UDPClient.ReceiveTimeout:=TimeoutMS
else
UDPClient.ReceiveTimeout:=tsapi_TimeoutMS_Max;
repeat
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Response:=UDPClient.ReceiveString(UDPPeerIP, UDPPeerPort);
//discovery request response received
if (UDPPeerPort<>0) and (GStack.LocalAddress<>UDPPeerIP) then
begin
{$IFDEF TSAPI_DEBUG}{$IFNDEF LCL}
WriteLn(STR_Info,'Response from ',Format('%s:%d', [UDPPeerIP, UDPPeerPort]));
writeln(STR_Info,'tsapi_Info_Authentication -> RESPONSE BEGIN');
writeln('--------------------------------------------------------------------------------');
Writeln(Response);
writeln('--------------------------------------------------------------------------------');
writeln(STR_Info,'tsapi_Info_Authentication -> RESPONSE END'+#13#10+#13#10);
{$ENDIF}{$ENDIF}
//check authentication response
if AnsiPos('authenticationResponse', Response)>0 then
begin
XMLBuffer:=TStringStream.Create(Trim(Response));
ReadXMLFile(XML, XMLBuffer);
Node:=XML.DocumentElement.ParentNode.FirstChild;
if Node<>NIL then
begin
if UpperCase((String(Node.Attributes.GetNamedItem('result').NodeValue)))='SUCCESS' then
Authentication:=true
else
Authentication:=false;
end;
if Node<>NIL then Node.Free;
if XML<>NIL then XML.Free;
if XMLBuffer<>NIL then XMLBuffer.Free;
end;
end;
until UDPPeerPort=0;
finally
UDPClient.Free;
end;
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Result:=Authentication;
except
on E:Exception do
begin
{$IFDEF FSAPI_DEBUG}E.Message:=STR_Error+'tsapi_Info_Authentication -> '+E.Message; DebugPrint(E.Message);{$ENDIF}
Result:=false;
end;
end;
end;
function tsapi_Info_KeepAlive(URL: String; TimeoutMS: Integer): Boolean;
//Device keep alive check
var
KeepAlive: Boolean;
UDPClient: TIdUDPClient;
UDPPeerPort: Word;
UDPPeerIP: String;
Response: String;
begin
try
UDPClient:=TIdUDPClient.Create(nil);
KeepAlive:=false;
//check if URL is available
if URL='' then
begin
Result:=KeepAlive;
exit;
end;
try
//send keep alive request
UDPClient.BoundIP:=GStack.LocalAddress;
UDPClient.BoundPort:=tsapi_ListenerPort;
UDPClient.Port:=tsapi_ListenerPort;
UDPClient.BroadcastEnabled:=true;
UDPClient.Send(URL, tsapi_ListenerPort, tsapi_keepAliveRequest);
//check keep alive request answer
if TimeoutMS>0 then
UDPClient.ReceiveTimeout:=TimeoutMS
else
UDPClient.ReceiveTimeout:=tsapi_TimeoutMS_Max;
repeat
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Response:=UDPClient.ReceiveString(UDPPeerIP, UDPPeerPort);
//keep alive request response received
if (UDPPeerPort<>0) and (GStack.LocalAddress<>UDPPeerIP) then
begin
{$IFDEF TSAPI_DEBUG}{$IFNDEF LCL}
WriteLn(STR_Info,'Response from ',Format('%s:%d', [UDPPeerIP, UDPPeerPort]));
writeln(STR_Info,'tsapi_Info_KeepAlive -> RESPONSE BEGIN');
writeln('--------------------------------------------------------------------------------');
Writeln(Response);
writeln('--------------------------------------------------------------------------------');
writeln(STR_Info,'tsapi_Info_KeepAlive -> RESPONSE END'+#13#10+#13#10);
{$ENDIF}{$ENDIF}
//check keep alive response
if AnsiPos(tsapi_keepAliveResponse, Response)>0 then
KeepAlive:=true
else
KeepAlive:=false;
end;
until UDPPeerPort=0;
finally
UDPClient.Free;
end;
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Result:=KeepAlive;
except
on E:Exception do
begin
{$IFDEF FSAPI_DEBUG}E.Message:=STR_Error+'tsapi_Info_KeepAlive -> '+E.Message; DebugPrint(E.Message);{$ENDIF}
Result:=false;
end;
end;
end;
//------------------------------------------------------------------------------
// Button Request
//------------------------------------------------------------------------------
function tsapi_rcuButtonRequest(URL: String; PIN: String; ButtonCode: Byte; ButtonState: String; TimeoutMS: Integer): Boolean;
//Device button request
var
rcuBtnRequest: Boolean;
UDPClient: TIdUDPClient;
UDPPeerPort: Word;
UDPPeerIP: String;
Response: String;
begin
try
UDPClient:=TIdUDPClient.Create(nil);
rcuBtnRequest:=false;
//check if URL and button code is available and not invalid
if (URL='') or (ButtonCode>Length(tsapi_Buttons)-1) then
begin
Result:=rcuBtnRequest;
exit;
end;
//check if ButtonState is correct
if AnsiIndexText(ButtonState, tsapi_ButtonStates)<0 then
ButtonState:=tsapi_ButtonStates[0];
try
//check if device reacts on keep alive request
if tsapi_Info_KeepAlive(URL, TimeoutMS)=false then
begin
//keep alive failed so try to authenticate
if tsapi_Info_Authentication(URL, PIN, TimeoutMS)=false then
begin
//Authentication failed also therefore button request can not be send
Result:=rcuBtnRequest;
exit;
end;
end;
//send rcu button request
UDPClient.BoundIP:=GStack.LocalAddress;
UDPClient.BoundPort:=tsapi_ListenerPort;
UDPClient.Port:=tsapi_ListenerPort;
UDPClient.BroadcastEnabled:=true;
UDPClient.Send(URL, tsapi_ListenerPort, '<rcuButtonRequest code="'+IntToStr(ButtonCode)+'" state="'+ButtonState+'"/>');
//check keep alive request answer
if TimeoutMS>0 then
UDPClient.ReceiveTimeout:=TimeoutMS
else
UDPClient.ReceiveTimeout:=tsapi_TimeoutMS_Max;
repeat
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Response:=UDPClient.ReceiveString(UDPPeerIP, UDPPeerPort);
//keep rcu button request response received
if (UDPPeerPort<>0) and (GStack.LocalAddress<>UDPPeerIP) then
begin
{$IFDEF TSAPI_DEBUG}{$IFNDEF LCL}
WriteLn(STR_Info,'Response from ',Format('%s:%d', [UDPPeerIP, UDPPeerPort]));
writeln(STR_Info,'tsapi_rcuButtonRequest -> RESPONSE BEGIN');
writeln('--------------------------------------------------------------------------------');
Writeln(Response);
writeln('--------------------------------------------------------------------------------');
writeln(STR_Info,'tsapi_rcuButtonRequest -> RESPONSE END'+#13#10+#13#10);
{$ENDIF}{$ENDIF}
//check button request response if available
if Response<>'' then
begin
if AnsiPos('rcuButtonRequest', Response)>0 then
rcuBtnRequest:=true
else
rcuBtnRequest:=false;
end
else
rcuBtnRequest:=true;
end
else
rcuBtnRequest:=true;
until UDPPeerPort=0;
finally
UDPClient.Free;
end;
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Result:=rcuBtnRequest;
except
on E:Exception do
begin
{$IFDEF FSAPI_DEBUG}E.Message:=STR_Error+'tsapi_rcuButtonRequest -> '+E.Message; DebugPrint(E.Message);{$ENDIF}
Result:=false;
end;
end;
end;
function tsapi_Info_GetURLByDeviceList(SearchCriteria: String; TimeoutMS: Integer): String;
//retrieve URL from device list by a given search criteria
var
DeviceList: TStringList;
Counter: Integer;
Buffer: String;
begin
try
Buffer:='';
//check if search criteria is not empty
if SearchCriteria='' then
begin
Result:=Buffer;
exit;
end;
//read device list
DeviceList:=TStringList.Create;
DeviceList.TextLineBreakStyle:=tlbsCRLF;
DeviceList.Duplicates:=dupIgnore;
DeviceList.SortStyle:=sslAuto;
DeviceList:=tsapi_Info_DeviceList(TimeoutMS);
if DeviceList.Count=0 then
begin
if DeviceList<>NIL then DeviceList.Free;
exit;
end;
//search device URL
for Counter:=0 to DeviceList.Count-1 do
begin
if (UpperCase(SearchCriteria)=Uppercase(DeviceList.Strings[Counter].Split('|')[1])) or (UpperCase(SearchCriteria)=Uppercase(DeviceList.Strings[Counter].Split('|')[2])) or (UpperCase(SearchCriteria)=Uppercase(DeviceList.Strings[Counter].Split('|')[3])) then
begin
Buffer:=DeviceList.Strings[Counter].Split('|')[0];
end;
end;
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Result:=Buffer;
if DeviceList<>NIL then DeviceList.Free;
except
on E:Exception do
begin
{$IFDEF FSAPI_DEBUG}E.Message:=STR_Error+'tsapi_Info_GetURLByDeviceList -> '+E.Message; DebugPrint(E.Message);{$ENDIF}
Result:='';
end;
end;
end;
function tsapi_rcuButtonRequestByName(DeviceName: String; PIN: String; ButtonCode: Byte; ButtonState: String; TimeoutMS: Integer): Boolean;
//Device button request with device name
var
rcuBtnRequest: Boolean;
URL: String;
begin
try
rcuBtnRequest:=false;
//check if device name is not empty
if DeviceName='' then
begin
Result:=rcuBtnRequest;
exit;
end;
//retrieve device URL by name
URL:=tsapi_Info_GetURLByDeviceList(DeviceName,TimeoutMS);
//start now button request with found URL
if URL<>'' then
begin
writeln(URL);
rcuBtnRequest:=tsapi_rcuButtonRequest(URL, PIN, ButtonCode, ButtonState, TimeoutMS);
end;
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Result:=rcuBtnRequest;
except
on E:Exception do
begin
{$IFDEF FSAPI_DEBUG}E.Message:=STR_Error+'tsapi_rcuButtonRequestByName -> '+E.Message; DebugPrint(E.Message);{$ENDIF}
Result:=false;
end;
end;
end;
function tsapi_rcuButtonRequestBySerial(Serial: String; PIN: String; ButtonCode: Byte; ButtonState: String; TimeoutMS: Integer): Boolean;
//Device button request with serial
var
rcuBtnRequest: Boolean;
URL: String;
begin
try
rcuBtnRequest:=false;
//check if serial is not empty
if Serial='' then
begin
Result:=rcuBtnRequest;
exit;
end;
//retrieve device URL by serial
URL:=tsapi_Info_GetURLByDeviceList(Serial,TimeoutMS);
//start now button request with found URL
if URL<>'' then
begin
writeln(URL);
rcuBtnRequest:=tsapi_rcuButtonRequest(URL, PIN, ButtonCode, ButtonState, TimeoutMS);
end;
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Result:=rcuBtnRequest;
except
on E:Exception do
begin
{$IFDEF FSAPI_DEBUG}E.Message:=STR_Error+'tsapi_rcuButtonRequestBySerial -> '+E.Message; DebugPrint(E.Message);{$ENDIF}
Result:=false;
end;
end;
end;
//------------------------------------------------------------------------------
// Zoom Request
//------------------------------------------------------------------------------
function tsapi_zoomRequest(URL: String; PIN: String; ZoomValue: Integer; TimeoutMS: Integer): Boolean;
//Device zoom request
var
ZoomRequest: Boolean;
UDPClient: TIdUDPClient;
begin
try
UDPClient:=TIdUDPClient.Create(nil);
ZoomRequest:=false;
//check if URL and zoom value is available and not invalid
if (URL='') or (ZoomValue=0) then
begin
Result:=ZoomRequest;
exit;
end;
try
//check if device reacts on keep alive request
if tsapi_Info_KeepAlive(URL, TimeoutMS)=false then
begin
//keep alive failed so try to authenticate
if tsapi_Info_Authentication(URL, PIN, TimeoutMS)=false then
begin
//Authentication failed also therefore request can not be send
Result:=ZoomRequest;
exit;
end;
end;
//send zoom request (there will be no response from the device)
UDPClient.BoundIP:=GStack.LocalAddress;
UDPClient.BoundPort:=tsapi_ListenerPort;
UDPClient.Port:=tsapi_ListenerPort;
UDPClient.BroadcastEnabled:=true;
UDPClient.Send(URL, tsapi_ListenerPort, '<zoomRequest zoom="'+IntToStr(ZoomValue)+'"/>');
ZoomRequest:=true;
finally
UDPClient.Free;
end;
{$IFDEF LCL}Application.ProcessMessages;{$ENDIF}
Result:=ZoomRequest;
except
on E:Exception do
begin
{$IFDEF FSAPI_DEBUG}E.Message:=STR_Error+'tsapi_zoomRequest -> '+E.Message; DebugPrint(E.Message);{$ENDIF}
Result:=false;
end;
end;
end;