How to use cURL to download web page with authentification (form)? Post: 302978812

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Top Forums UNIX for Beginners Questions & Answers How to use cURL to download web page with authentification (form)? Post 302978812 by MarcelOrMittal on Thursday 4th of August 2016 08:18:00 AM

08-04-2016

Registered User

How to use cURL to download web page with authentification (form)?

Hello,

I'm new in the forum and really beginer, and also sorry form my bad english.

I use linux and want to create little program to download automaticaly some pdf (invoices) and put in a folder of my computer. I learn how to do and programme with ubuntu but the program will be implemented on a mac osx so I look for compatible soft.

So I look for cURL.

I don't know if a subject is already open arround curl and authentification, if yes, please redirect me.

So,
I can download a pdf from a command line (good begining) but the file I want to get are on a web site with authentification form, and it's impossible to go directly to the url of the pdf, I have to go to login page, and when it's done I fall in the "home" part of the web site with an other authentification.

So I have to pass the form, pass a second form with just a number "personal code", and after go to the url of the file I want to download.

I try to pass the first authentification but I dont know if it's done or not, and i dont know how to, after authentification, keep the cookies and continu to pass the second authentification and ask cURL for the url of the file.

To begin, some body can maybe say me if with this command line I pass the form with succes or not: (XXXXX is the pass word and username)

Code:

curl --trace-ascii debugcyclosoftware.txt -d klantid=XXXXX -d wachtwoord=XXXXX https://s02.cyclesoftware.nl/app/cs/account/login/login/

You can see the form at the adress in the code.

And the debugcyclosoftware.txt is in attachement.

The second athentification is also a form but ask the "personnal code" to ride the web site.

When I look the debugcyclosoftware.txt file I see that I finish at location that I would like to go (home page), so it's done?

If i try to put a second url after the first to do a second post (for second form) I directly go back to the login page with a HTTP/1.1 302 Found.

But I maybe need a language like python or PHP to manage curl to do different action step by step and keep the cookie.

I don't know to mush php but I see that it work well with cURL.

Any advises or suggestion to help me to continu to learn and do?

I hope I m relatively clear...

Thanks a lot to having read =)

debugcyclosoftware.txt (10.3 KB)

MarcelOrMittal

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gftp

GFTP(1) 						      General Commands Manual							   GFTP(1)

NAME

       gftp - a graphical ftp client

SYNOPSIS

       gftp [options] [[proto://][ user : [pass] @] site [: port ][/ directory ]]

DESCRIPTION

       gFTP  is  a  multiprotocol  file transfer program for X Windows and the console. It features support for the FTP, SSH, HTTP, and local file
       system protocols, simultaneous downloads, resuming of interrupted file transfers, file transfer queues, downloading of  entire  directores,
       ftp and http proxy support, remote directory caching, bookmarks menu, stop button and many more features

OPTIONS

       You may enter a url on the command line that gFTP will automatically connect to when it starts up.

       --help, -h
	      Display program usage, and quit

       --version, -v
	      This will display the current version of gFTP, and exit

       --download, -d
	      This tells gFTP to download the files and directories specified in the url passed on the command line.

       user   This is the username that you will login as to the remote site. If no username is supplied, the default is to login as anonymous.

       pass   This is the password you will use to login to the remotesite. If you do not enter a password, then gFTP will ask you for one when it
	      starts up. I do not recommend entering your password on the command prompt. Anyone that has access to your machine will be  able	to
	      see  your username and password with the ps(1) command. If you are logging in as anonymous, you do not need to pass a password since
	      gFTP will automatically send your email address as your password.

       site   This is the remote site you want to connect to

       port   This is the port that the remote server is listening on. If you do not enter a port, it will default to using the ftp port listed in
	      the services(5) file. If the entry doesn't exist there, it will default to port 21.

       directory
	      This is the default directory to change to once you are connected to the remote server.

FILES

       ~/.gftp/gftprc
	      Per  user  configuration file. This file is commented very well, so that is why there isn't a manpage for it. Most of the options in
	      here can be set inside gFTP itself.

BUGS

       If you find any bugs in gFTP, please report them directly to the author.

AUTHOR

       Brian Masney <masneyb@gftp.org> - http://www.gftp.org/

								   FEBURARY 2001							   GFTP(1)