[AHK_H v2] how to use ObjDump/Load(to disk) with password? Topic is solved

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swagfag
Posts: 6222
Joined: 11 Jan 2017, 17:59

[AHK_H v2] how to use ObjDump/Load(to disk) with password?

20 Feb 2019, 04:53

Code: Select all

; _h v2 w64

Obj := {msg: 'hello world'}
PASS := 'MyPassword'
PATH := 'C:\DumpedObj.bin'

FileDelete(PATH)

; ObjDump: all modes + password
; ObjLoad: no size, no password
MsgBox '[Dump] Mode: blank + password'
MsgBox 'size: ' size := ObjDump(PATH, Obj, , PASS)
MsgBox 'msg: ' ObjLoad(PATH).msg ; reads key, but shouldnt
FileDelete(PATH)

MsgBox '[Dump] Mode: 0 + password'
MsgBox 'size: ' size := ObjDump(PATH, Obj, 0, PASS)
MsgBox 'msg: ' ObjLoad(PATH).msg ; reads key, but shouldnt
FileDelete(PATH)

MsgBox '[Dump] Mode: 1 + password'
MsgBox 'size: ' size := ObjDump(PATH, Obj, 1, PASS)
MsgBox 'msg: ' ObjLoad(PATH).msg ; reads key, but shouldnt
FileDelete(PATH)

; MsgBox '[Dump] Mode: 2 + password'
; MsgBox 'size: ' size := ObjDump(PATH, Obj, 2, PASS)
; MsgBox 'msg: ' ObjLoad(PATH).msg ; exception Out of Memory
; FileDelete(PATH)

; MsgBox '[Dump] Mode: 3 + password'
; MsgBox 'size: ' size := ObjDump(PATH, Obj, 3, PASS)
; MsgBox 'msg: ' ObjLoad(PATH).msg ; exception Out of Memory
; FileDelete(PATH)

MsgBox '[Load] different params'
MsgBox 'size: ' size := ObjDump(PATH, Obj, , PASS)
; MsgBox 'msg: ' ObjLoad(PATH, size, PASS).msg ; exception, Too Many Parameters Passed to Function
; MsgBox 'msg: ' ObjLoad(PATH, , PASS).msg ; exception, Too Many Parameters Passed to Function
MsgBox 'msg: ' ObjLoad(PATH, size).msg ; reads key, but shouldnt
can u show how this function is to be used?
if u dump with modes '', 0, 1, the object can be loaded anyway, without supplying a password. it is my understanding that this shouldnt be allowed
modes 2, 3 dont permit this, although the error message is a bit peculiar

if u try to ObjLoad() according to the signature in the docs:
OutputVar := ObjLoad(AddressOrPath , Size, Password)
u get "Too Many Parameters Passed to Function"

i think the error is in ObjRawLoad towards the end, when u do aObject->Invoke(....
swagfag
Posts: 6222
Joined: 11 Jan 2017, 17:59

Re: [AHK_H v2] how to use ObjDump/Load(to disk) with password?

22 Feb 2019, 03:01

i think i had tried ObjLoad() with just the password and it didnt work

anyway, it still doesnt appear to be working now either:

Code: Select all

global Obj := {msg: 'hello world'}
global PASS := 'MyPassword'
global PATH := 'C:\DumpedObj.bin'

FileDelete(PATH)

MsgBox '[Dump] Mode: 2 + password'
MsgBox 'size: ' size := ObjDump(PATH, Obj, 2, PASS)
MsgBox 'msg: ' ObjLoad(PATH, PASS).msg ; exception Out of Memory
FileDelete(PATH)

MsgBox '[Dump] Mode: 3 + password'
MsgBox 'size: ' size := ObjDump(PATH, Obj, 3, PASS)
MsgBox 'msg: ' ObjLoad(PATH, PASS).msg ; exception Out of Memory
FileDelete(PATH)
ive updated _h v2 to d2865c6 (5 hrs ago)
swagfag
Posts: 6222
Joined: 11 Jan 2017, 17:59

Re: [AHK_H v2] how to use ObjDump/Load(to disk) with password?

23 Feb 2019, 14:17

by the way, the last example works fine for loading the object back in, provided a correct password has been supplied.

if u give it the wrong password, though, sometimes it will throw "Out of Memory", sometimes it wont and just wont return an object. i havent been able to exactly pinpoint when either of those events are to occur.

what is the intended behavior when giving it wrong passwords?

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