Accessing internet url

14 posts

saurabhAggarwalJanuary 17, 2005 at 4:14 AM#

Accessing internet url

Hi

During installtion I need to verify the serial number that is entered by the user at the server.
How can we file a HTTP GET through nsis scripts.
This I have to do when user hits next button of the serial
number page.
The serial number page that I am using here is my custom designed.

waiting for reply
saurabh

TakhirJanuary 17, 2005 at 5:37 AM#

Program files/NSIS/contrib/nsisdl plugin
http://forums.winamp.com/showthread....0&pagenumber=2 InetLoad plug-in (better proxy support and some other options)

saurabhAggarwalJanuary 17, 2005 at 5:56 AM#

hi

I didn't found any help in there!!!!

Let me make the problem very clear
In many installations, we need to enter a serial number something like this dfdf-234j-34k3-asdf
In my installer I have one custom page for entering the serial number. Currently the installer just enters the serial number entered by user in the registry. Now I need to make some changes in it. I need to first verify that serial number at the server and if the serial number is valid then only user will be allowed to proceed further.

Thanks

TakhirJanuary 17, 2005 at 6:11 AM#

You can add serial number string as url parameter
http://.../Aggarwal.php?sn=bla-bla-bla
and check server reply. You also need server program to check sn. Server answer may be Yes or No (for example), plug-in creates file, you can open and read this file or just check it's size (2 or 3 bytes).

saurabhAggarwalJanuary 17, 2005 at 7:23 AM#

and how I can fire this http get request

saurabhAggarwalJanuary 17, 2005 at 7:24 AM#

please give me some code example. I am new in writing these .nsi scripts

Thanks

TakhirJanuary 17, 2005 at 7:43 AM#



!define stSTAT '(i,&i2,&i2,&i2,&i2,&i2,&i2,i,i,i,i,i) i'



Function fileSize



   System::Call '*${stSTAT} .r0' ; allocates memory for STAT struct and writes address to $0

   System::Call 'msvcrt.dll::_stat(t "$EXEDIR\cnhecksn.txt", i r0) i .r1'

   IntCmp $1 -1 exit

   System::Call "*$0${stSTAT}(,,,,,,,,.r1,,,)"

exit:

   System::Free $0 ; free allocated memory



FunctionEnd

Code for SN page LEAVE function



InetLoad::load /BANNER "Serial number check out" "Please wait" "http://www.india.com/checksn.php" "$EXEDIR\cnhecksn.txt"

Call fileSize

IntCmp $1 3 yesAnswer

...

If server answer is not "Yes" installer should go back to your SN page (but I never did this trick with LEAVE func.)

saurabhAggarwalJanuary 17, 2005 at 8:28 AM#

If I use something like this

NSISdl::download /NOIEPROXY "https://192.168.55.100/groupm/main.cgi?SN=$4"
pop $R0
StrCmp $R0 "success" +3
MessageBox MB_OK "Operation failed: $R0"
Quit

Is this work?
I am not sure bcoz i don't have server side script ready to check it.

TakhirJanuary 17, 2005 at 8:43 AM#

local_file definition also required (where to store server answer). This should work except some proxy configurations.

saurabhAggarwalJanuary 17, 2005 at 9:30 AM#

I have used the following code but this is not working

1. NSISdl::download /NOIEPROXY "http://192..../cgi- bin/validate.cgi?sn=1111111111111111" "C:\tmp\abc.txt"
2. pop $R0
3. StrCmp $R0 "yes" +3
4. MessageBox MB_OK "Operation failed: $R0"
5. Quit
6. MessageBox MB_OK "$R0"

Messagebox of line 4 is popped up and the message is:
Operation failed: Server did not specify content length

any clue

TakhirJanuary 17, 2005 at 9:44 AM#

NSISdl works woth http 1.0 only and requires this http header. InetLoad can work without this. 😉

saurabhAggarwalJanuary 18, 2005 at 1:52 AM#

The text file created using line

NSISdl::download /NOIEPROXY "http://192..../cgi- bin/validate.cgi?sn=1111111111111111" "C:\tmp\abc.txt"

<form method="post" action="/cgi-bin/validate.cgi?sn=1111111111111111" enctype="multipart/form-data">
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US"><head><title>Validation Response</title>
</head><body><h4>YES</h4></body></html>

I need to read that YES (OR NO) between h4 tags. Is there any function in nsis scripting to check one string in other string

saurabhAggarwalJanuary 18, 2005 at 7:19 AM#

hi

This is working now

thanks for ur cooperation

saurabhAggarwalJanuary 18, 2005 at 7:23 AM#

do you know how can we add validations to textbox

Suppose I have a text box and I want that the serial number
is entered in the following format
####-####-####-####

hyphen are placed automatically.
these kind validations are there in visual basic.
If this is not possible then is it possible to add event to key press at a text so as to set focus on another textbox