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Hello, I have searched much for the answer to this question; most of my Google searches bring up the same thing, the cURL manual. Done much experimentation but to no ...
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  1. #1
    Just Joined!
    Join Date
    Jan 2007
    Posts
    19

    cURL not posting login data?


    Hello,

    I have searched much for the answer to this question; most of my Google
    searches bring up the same thing, the cURL manual. Done much experimentation
    but to no avail.

    I am running an automated script that compares content of a web page against the last
    time it was checked (using diff) to see if it was updated. Works great.

    Now I want to check a page (php bulletin board) which requires logging in
    with password.

    According to the cURL manual, this should be no big deal. Quote from the cURL
    manual:

    "It's easy to post data using curl."

    The "form" container of the page looks like this:

    <form action="login.php" method="post" target="_top">
    <input type="text" name="username" size="25" maxlength="40" value="" /></div>
    <input type="password" name="password" size="25" maxlength="32" /></div>
    <input type="checkbox" name="autologin" />
    <input type="hidden" name="redirect" value="viewforum.php?f=1&start=0" />
    <input type="submit" name="login" class="mainoption" value="Log in" /><br />
    </form>

    Following the directions from the POST (HTTP) section of the manual I enter this:

    (NOTE: the URL I have used in each case was entered as a full http protocol URL when
    running the command. I have removed the http protocol prefixes here to keep them from being parsed as a link.)

    curl -d "username=myusername&password=xyz123&login=Log+in& redirect=viewforum.php?f=1&start=0" bogusforums.com/login.php?redirect=viewforum.php&f=1&start=0

    The URL supplied is the URL which, if I am logged out using a particular browser,
    this would take me to a login page, and then once the login data was entered and
    submitted, would normally take me right to the desired forum page.

    I am assuming then, that by posting the data using cURL as I have done, it should
    download the content of that same desired forum page.

    Instead, the output I get is something like this:

    allasso:~ allasso$curl -d "username=myusername&password=xyz123&login=Log+in& redirect=viewforum.php?f=1&start=0" bogusforums.com/login.php?redirect=viewforum.php&f=1&start=0
    [1] 863
    [2] 864

    THEN, if I keep re-entering the same command, it looks like this (notice the numbers
    in brackets seem to increase sequentially):

    allasso:~ allasso$curl -d "username=myusername&password=xyz123&login=Log+in& redirect=viewforum.php?f=1&start=0" bogusforums.com/login.php?redirect=viewforum.php&f=1&start=0
    [3] 865
    [4] 866
    [1] Done curl -d "username=myusername&password=xyz123&login=Log+in& redirect=viewforum.php?f=1&start=0" bogusforums.com/login.php?redirect=viewforum.php
    [2] Done f=1
    allasso:~ allasso$curl -d "username=myusername&password=xyz123&login=Log+in& redirect=viewforum.php?f=1&start=0" bogusforums.com/login.php?redirect=viewforum.php&f=1&start=0
    [5] 867
    [6] 868
    [3] Done curl -d "username=myusername&password=xyz123&login=Log+in& redirect=viewforum.php?f=1&start=0" bogusforums.com.com/login.php?redirect=viewforum.php
    [4] Done f=1

    As I said, I just simply want it to download the same page that shows up when I submit
    data manually from a browser.

    I then tried entering the same information using the -F option instead of -d:

    curl -F "username=myusername&password=xyz123&login=Log+in& redirect=viewforum.php?f=1&start=0" bogusforums.com/login.php?redirect=viewforum.php&f=1&start=0

    This gives me similar output, only this time it will download the login page (not the page I
    wish to be directed to), and then does not exit.

    If I simply press return again, I get this:

    [1]- Done curl -F "username=myusername&password=xyz123&login=Log+in& redirect=viewforum.php?f=1&start=0" bogusforums.com.com/login.php?redirect=viewforum.php
    [2]+ Done f=1

    Anyone know what is going on, and what I need to do to get cURL to get past the login
    page and download the desired page each time?

    Thanks,

    Allasso

  2. #2
    Just Joined!
    Join Date
    Jan 2007
    Posts
    19
    my apologies for the incorrect use of "cURL".

    It should be "curl"

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