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Messages - cj

#46
#PBFORMS CREATED V2.01
#COMPILE EXE   'Save as "Modeless.bas"  PBFORMS with Jose Roca includes
#DIM ALL
%UNICODE = 1
#INCLUDE ONCE "Windows.inc"
#INCLUDE ONCE "sqlitening.inc"
'------------------------------------------------------------------------------
#PBFORMS BEGIN INCLUDES
#RESOURCE "modeless.pbr"
#PBFORMS END INCLUDES
GLOBAL ghDlg AS DWORD
'------------------------------------------------------------------------------
#PBFORMS BEGIN CONSTANTS
%IDD_DIALOG1 =  101
%LABEL1      = 1001
%TEXTBOX1    = 2001
%BTN_BUTTON1 = 3001
%TEXTBOX2    = 3002
#PBFORMS END CONSTANTS
#PBFORMS DECLARATIONS
FUNCTION PBMAIN()
 ShowDIALOG1 %HWND_DESKTOP
END FUNCTION
'------------------------------------------------------------------------------
CALLBACK FUNCTION ShowDIALOG1Proc()
  SELECT CASE AS LONG CB.MSG
    CASE %WM_INITDIALOG
      ghDlg = CB.HNDL
    CASE %WM_NCACTIVATE
      STATIC hWndSaveFocus AS DWORD
      IF ISFALSE CB.WPARAM THEN
        ' Save control focus
        hWndSaveFocus = GetFocus()
      ELSEIF hWndSaveFocus THEN
        ' Restore control focus
        SetFocus(hWndSaveFocus)
        hWndSaveFocus = 0
      END IF
    CASE %WM_COMMAND
      ' Process control notifications
      SELECT CASE AS LONG CB.CTL
        CASE %BTN_BUTTON1
          IF CB.CTLMSG = %BN_CLICKED OR CB.CTLMSG = 1 THEN
           LOCAL hThread AS LONG
           THREAD CREATE SQLitening(0) TO hThread
           THREAD CLOSE hThread TO hThread
          END IF
      END SELECT
    CASE %WM_DESTROY
      PostQuitMessage 0 'required with modeless Jose Roca message pump
      EXIT FUNCTION
  END SELECT
END FUNCTION
'------------------------------------------------------------------------------
FUNCTION ShowDIALOG1(BYVAL hParent AS DWORD) AS LONG
  LOCAL lRslt AS LONG
#PBFORMS BEGIN DIALOG %IDD_DIALOG1->->
  LOCAL hDlg   AS DWORD
  LOCAL hFont1 AS DWORD
  LOCAL hFont2 AS DWORD

  DIALOG NEW hParent, "", 72, 138, 919, 380, %WS_POPUP OR %WS_BORDER OR _
    %WS_DLGFRAME OR %WS_THICKFRAME OR %WS_CAPTION OR %WS_SYSMENU OR _
    %WS_MINIMIZEBOX OR %WS_MAXIMIZEBOX OR %WS_VISIBLE OR %DS_MODALFRAME OR _
    %DS_CENTER OR %DS_3DLOOK OR %DS_NOFAILCREATE OR %DS_SETFONT, _
    %WS_EX_CONTROLPARENT OR %WS_EX_LEFT OR %WS_EX_LTRREADING OR _
    %WS_EX_RIGHTSCROLLBAR, TO hDlg
  CONTROL ADD BUTTON,  hDlg, %BTN_BUTTON1, "Execute", 5, 360, 50, 15
  CONTROL ADD TEXTBOX, hDlg, %TEXTBOX1, "", 5, 25, 910, 265, %WS_CHILD OR _
    %WS_VISIBLE OR %WS_HSCROLL OR %WS_VSCROLL OR %ES_LEFT OR %ES_MULTILINE _
    OR %ES_AUTOHSCROLL OR %ES_AUTOVSCROLL, %WS_EX_CLIENTEDGE OR %WS_EX_LEFT _
    OR %WS_EX_LTRREADING OR %WS_EX_RIGHTSCROLLBAR
  CONTROL ADD LABEL,   hDlg, %LABEL1, "Modeless DDT with Jose Roca includes", _
    387, 5, 230, 20, %WS_CHILD OR %WS_VISIBLE OR %SS_CENTER, %WS_EX_LEFT OR _
    %WS_EX_LTRREADING
  CONTROL ADD TEXTBOX, hDlg, %TEXTBOX2, "select rowid,* from parts", 5, 300, _
    725, 55, %WS_CHILD OR %WS_VISIBLE OR %WS_TABSTOP OR %WS_HSCROLL OR _
    %WS_VSCROLL OR %ES_LEFT OR %ES_MULTILINE OR %ES_AUTOHSCROLL OR _
    %ES_AUTOVSCROLL OR %ES_WANTRETURN, %WS_EX_CLIENTEDGE OR %WS_EX_LEFT OR _
    %WS_EX_LTRREADING OR %WS_EX_RIGHTSCROLLBAR

  FONT NEW "MS Sans Serif", 10, 1, %ANSI_CHARSET TO hFont1
  FONT NEW "Courier New", 12, 0, %ANSI_CHARSET TO hFont2

  CONTROL SET FONT hDlg, %LABEL1, hFont1
  CONTROL SET FONT hDlg, %TEXTBOX2, hFont2
#PBFORMS END DIALOG
  DIALOG SHOW MODELESS hDlg, CALL ShowDIALOG1Proc TO lRslt
  LOCAL uMsg AS tagMsg
  WHILE GetMessage(uMsg, %NULL, 0, 0)
    IF IsDialogMessage(hDlg, uMsg) = 0 THEN
      TranslateMessage uMsg
      DispatchMessage uMsg
    END IF
   WEND '---------- End Jose Roca message pump
#PBFORMS BEGIN CLEANUP %IDD_DIALOG1
  FONT END hFont1
  FONT END hFont2
#PBFORMS END CLEANUP
  FUNCTION = lRslt
END FUNCTION

THREAD FUNCTION sqlitening(BYVAL x AS LONG) AS LONG
 LOCAL s,sql,sdata2,sdata3,sArray() AS STRING
 CONTROL SET TEXT ghDlg,%TEXTBOX1,s
 slOpen  "sample.db3","C"
 CONTROL GET TEXT ghDlg,%TEXTBOX2 TO sql
 IF sql = "select rowid,* from parts" THEN
  sql =   "select rowid as ROW,MANUF,REDREF,PRODUCT,LANGUAGE,CPU_OS,MEDIA,TYPE,PGROUP,printf('%.2f',price*.01) AS PRICE from parts"
 END IF
 slSelAry sql,sArray(),"Q9 E2 "
 REDIM lTabStop(1 TO 9) AS LONG
 lTabStop(1) = 22  'manuf
 lTabStop(2) = 160 'redref
 lTabStop(3) = 200 'product
 lTabStop(4) = 440 'language
 lTabStop(5) = 500 'cpu_os
 lTabStop(6) = 540 'media
 lTabstop(7) = 590 'type
 lTabstop(8) = 640 'pgroup
 lTabstop(9) = 820 'price
 CONTROL SEND ghDlg,%TEXTBOX1,%EM_SETTABSTOPS,UBOUND(lTabStop), VARPTR(lTabStop(1))
 s = JOIN$(sArray(),$CRLF)
 LockWindow
 CONTROL SET TEXT ghDlg,%TEXTBOX1,s                    'fill textbox
 REM CONTROL SEND ghDlg,%TEXTBOX1,%WM_VSCROLL,%SB_BOTTOM,0 'scroll to bottom of textbox
 UnlockWindow
END FUNCTION
'_______________________________________________________________________________________________
FUNCTION rs(sql AS STRING) AS STRING
 LOCAL sArray() AS STRING
 IF slSelAry(sql,sArray(),"Q9 E2 c") THEN
  ? sql + $CR + slGetError,%MB_SYSTEMMODAL OR %MB_ICONERROR,"Recordset"
 ELSE
  FUNCTION=JOIN$(sArray(),$CR)
 END IF
END FUNCTION
'_______________________________________________________________________________________________
FUNCTION LockWindow AS LONG
  CONTROL SEND ghDlg, %TEXTBOX1,%WM_SETREDRAW,0,0
END FUNCTION

FUNCTION UnlockWindow AS LONG
 CONTROL SEND ghDlg,%TEXTBOX1,%WM_SETREDRAW,1,0
END FUNCTION
#47
General Board / SQLite Forum Address and first post
January 08, 2022, 09:50:28 AM
Forum: https://sqlite.org/forum/forum
First post about SQLitening, by anyone,  on SQLite forum:  https://sqlite.org/forum/forumpost/a0a775c72e
Someone asked about client/server for SQLite and I couldn't help myself.

#48
Yes, any file type can be insert into a blob column, but it may not be the best choice.
PDF files can be saved in a database, but client or I copy them "as is" into a folder for each client.
The client can click on them or do anything without having to save to a database and extract.
Chrome browser displays PDF files very well or SHELL "filename.pdf" to use default viewer for type "pdf".
Giving the client the option to open pdf folder allows them to select/display with a click.

#COMPILE EXE "SaveAnyFile"  'Save as "SaveAnyfile.Bas"
#INCLUDE "sqlitening.inc"
  
FUNCTION PBMAIN () AS LONG
 LOCAL sData AS STRING
 LOCAL sFileName AS STRING

 slOpen "junk.db3","C"
 slexe  "create table if not exists Table1(MyFile)"

 sFileName = "SaveAnyFile.bas"
 IF GetFileFromDisk(sFileName,sData) THEN EXIT FUNCTION
 slExeBind "insert into Table1 values(?)",slbuildbinddat(sData,"B")
 IF slGetChangeCount = 0 THEN ? "insert error":EXIT FUNCTION

 slsel "select rowid,Myfile from Table1"
 DO WHILE slGetRow
   ? CHR$("Rowid=",slfn("rowid"),$CR,$CR,slfn("MyFile"))
 LOOP
END FUNCTION

FUNCTION GetFileFromDisk(sFileName AS STRING,sData AS STRING) AS LONG
 sData = ""
 IF ISFILE(sFileName) = 0 THEN FUNCTION = 53:EXIT FUNCTION
 LOCAL hfile AS LONG
 hfile = FREEFILE
 OPEN sFileName FOR BINARY AS hFile
 IF ERR THEN FUNCTION = ERR:BEEP:EXIT FUNCTION
 GET$ hFile,LOF(hFile),sData
 IF ERR THEN FUNCTION = ERR
 CLOSE hFile
END FUNCTION
#49
FUNCTION GetLockNames AS STRING
 'connect and open database before call
 LOCAL s1,s2 AS STRING, x AS LONG
 s1 = slGetStatus(1)
 IF LEN(s1) = 0 THEN EXIT FUNCTION
 REPLACE $VT WITH "," IN s1
 REPLACE $BS WITH "," IN s1
 FOR x = 2 TO PARSECOUNT(s1) STEP 8
  s2 = s2 + PARSE$(s1,x) + ","
 NEXT
 FUNCTION = LEFT$(s2,-1)
END FUNCTION
#50
General Board / Re: slOpen memory leak
August 03, 2020, 10:24:18 PM
Though I have not had a problem, I am removing this change in case
ATTACH or push the databases handles may need slOpen.  Better safe than sorry.

FUNCTION slOpen ALIAS "slOpen  ...
  IF thDab THEN EXIT FUNCTION  '<--- add  line in SQLitening.Bas and compile
#51
Fredrick,
I don't think it is a bug so I doubt it. That is up to Paul Squires.
Options:
1. Use slClose before slOpen.
2. Use IF ISFALSE(slIsOpen) THEN slOpen.
3. Don't call slOpen more than once without first closing.
4. Write a function or macro that replaces slOpen.
5  Add line IF thDab THEN EXIT FUNCTION like I did.

Fim,
Thank you for reporting this 4/1/2020 at:
https://sqlitening.planetsquires.com/index.php?topic=9756.msg26645;topicseen#msg26645
#52
General Board / slOpen memory leak fix
May 14, 2020, 11:48:07 AM

FUNCTION slOpen ALIAS "slOpen  ...
  IF thDab THEN EXIT FUNCTION  '<--- add  line in SQLitening.Bas and compile

Rather than test every program ever written, make above 1-line change to SQLitening.Bas
This is not an error in SQLitening, but a programming error not checking if database was open.
Calling slOpen will now just return if database is open and not create new handle and leak previous handle.



Test new SQLitening.dll to be sure duplicate handles are not created using slOpen
#INCLUDE "sqlitening.inc"  'test new sqlitening.dll with 3 open methods

SUB Test(sdatabase AS STRING)
 LOCAL h AS LONG
 slOpen sdatabase
 h = slgethandle
 slOpen sdatabase
 IF h <> slGetHandle THEN ? "Memory leak"
END SUB

FUNCTION PBMAIN () AS LONG
 Test "temp.tmp"  'test database file
 Test ":memory:"  'test in-memory database
 Test ""          'test temp database
 ? "Done"
END FUNCTION

Also tested over the internet and using threads.
#53
General Board / Re: slOpen memory leak
May 11, 2020, 10:36:43 PM
Hi, Bern.

I can't think of any use.  The docs mention making direct calls to SQLite.
I only use slOpen in other threads.
.
I never realized a new global or threaded file handle was created with each call to slOpen.
I always thought SQlitening ignored a call to an already open database.

I will be modifying some programs by mostly using IF ISFALSE(slIsOpen) Then slOpen ...


Quote from: undefinedslGetHandle ([rsModChars String, rlSetNumber Long]) Dword

Returns the requested handle.  ModChars will determine which handle is returned.  The database handle may be used to call SQLite directly or can be passed to a different thread to be used in slOpen.  The set handle may only be used to call SQLite directly and then only if in local mode. A %SQLitening_InvalidStringOrRequest error will occur if you try to get a set handle in remote mode.


ModChars:
·    D = Return the open database handle. This is the default.
·    S = Return the open set handle for set number passed in SetNumber.


Returns zero if an error occurs and the global return errors flag is on.
#54
General Board / slOpen memory leak
May 11, 2020, 09:30:43 AM
This demonstrates how multiple global handles are incorrectly created (programming error) for the current database.
Notice the database cannot close correctly or be killed if this is done.  Permission denied error.
Calling slOpen many times without closing it will eventually produce an error 7.

GLOBAL gs AS STRING
#INCLUDE "sqlitening.inc"

FUNCTION PBMAIN () AS LONG
slSetProcessMods "E2"
LOCAL x AS LONG
Logit "Open database only if not open"
FOR x = 1 TO 5
  IF ISFALSE(slIsOpen) THEN slopen "junk.tmp","C": Logit USING$("handle #",slGetHandle)
NEXT
slClose
KILL "junk.tmp"
Logit  ERROR$(ERR) + " killing junk.tmp"


[b]'Now show how to incorrectly use slOpen[/b]

Logit ""
Logit "Open database without testing if already open"
FOR x = 1 TO 5
  slopen "junk.tmp","C"
  Logit USING$("handle #",slGetHandle)
NEXT
slClose
KILL "junk.tmp"
LOGIT ERROR$(ERR) + " killing junk.tmp"

? gs

END FUNCTION

SUB LogIt(s AS STRING)
gs = gs + s + $CR
END SUB
slOpen.png
#55
Enables a column delimiter and a new row delimiter in new JOIN2$ function.
This makes it easy to display a string from a 2-dimensional array with a $CR  or other characters as a row delimiter.

Improved money macro to automatically display passed column name instead of printf statement.
SQlite "AS" is optional so just appended colname to the money macro.
Don't like leading 0 displaying on money columns so used ltrim to remove it.

Enjoy!

#DIM ALL
MACRO money(colname)= CHR$("ltrim(printf('%.2f',",colname,"*.01),'0')",colname)
#INCLUDE "sqlitening.inc"

FUNCTION PBMAIN () AS LONG

 LOCAL sql,sColDel,sRowDel,rs() AS STRING
 slopen "sample.db3"
 sql = "select manuf,redref,"+ money("PRICE") + " from parts limit 20"
 slselary sql,rs()
 sColDel = "   "
 sRowDel = $CR
 ? JOIN2(rs(),sColDel,sRowDel),,USING$("Rows #_, Cols #",UBOUND(rs,2),UBOUND(rs))

END FUNCTION

FUNCTION JOIN2(rs() AS STRING,sColumnDelimiter AS STRING,sRowDelimiter AS STRING) AS STRING
 LOCAL sb AS ISTRINGBUILDERA
 sb = CLASS "STRINGBUILDERA"
 'sb.capacity = 1024*1000 'does well without capacity

 LOCAL c              AS LONG
 LOCAL LowCol         AS LONG
 LOCAL HighCol        AS LONG
 LOCAL HighCol_minus1 AS LONG

 LOCAL r              AS LONG
 LOCAL LowRow         AS LONG
 LOCAL HighRow        AS LONG

 LowCol = LBOUND(rs,1)
 HighCol= UBOUND(rs,1)
 HighCol_minus1 = HighCol-1
 LowRow = LBOUND(rs,2)
 HighRow= UBOUND(rs,2)

 FOR r = LowRow TO HighRow
  FOR c= LowCol TO HighCol_minus1
   sb.add  rs(c,r)
   sb.add sColumnDelimiter
  NEXT c
  sb.add rs(c,r)
  sb.add sRowDelimiter
 NEXT r
 FUNCTION = sb.string
END FUNCTION
#56
Very interesting read:
https://proprivacy.com/vpn/comparison/nigeria-vpn

I have been successfully using SQLitening over a VPN between machines that share the exact same dedicated VPN server using the same user name and password.  This might be the best way to go if this is allowed.
I paid nothing extra and didn't need any dedicated IP address (other then share same exact server.)

I will finally have time to work on encrypting SQLitening on 12/3.
#57
https://help.logmein.com/pkb_Home?q=share%20a%20port&l=en_US&c=products%3Almihamachi2&atype=FAQ__kav

It looks like you share a folder and use Windows mapping.
I only connected 2 machines and used chat.
I didn't use SQLite with it.
There are links to PDF files at the bottom of their home page.
Many use it so there must be better docs on the net, don't know where.
#58
Windows 10 has a built-in VPN server, but I couldn't connect.
Some on the internet say there is a problem introduced in a Windows update.
https://pureinfotech.com/setup-vpn-server-windows-10/

I got Hamachi to connect, but didn't go any further.

I'll go back to encrypting the TCP data being transmit to the server.
#59
Paid NordVPN connected with a couple machines using same username/password on one of their servers marked as allowing dedicated connections.  Might break terms of service or not work with more machines.
#60
I will look into it later today.
NordVPN worked great.
I don't like the price of the dedicated server.
I will also add AES256 to SQLitening TCP within a few days.