wget to login to website

[jackvull]

I cannot get wget to successfully login to a page. I try to submit the details by POST to a login form but it doesn't pick up the correct page afterwards, just the standard page when not logged in.
I picked up the form name from the source on this page, not sure if it's the correct one or not.

I am trying to retrieve the HTML from the page every 10mins and if something has changed then to send me an email with the updated page.

[root@serve~]# wget --post-data='username=DUMMYUSER&password=DUMMYPASSWORD' --save-cookies=my-cookies.txt --keep-session-cookies [url]https://www.example.com/widget_month.php[/url]
--2010-01-18 14:51:32-- [url]https://www.example.com/widget_month.php[/url]
Resolving [url]www.example.com[/url]... 72.29.XX.XX
Connecting to [url]www.example.com¦72.29.XX.XX¦:443[/url]... connected.
HTTP request sent, awaiting response... 200 OK
Length: 15559 (15K) [text/html]
Saving to: `widget_month.php'
100%[===========================================================================>] 15,559 63.6K/s in 0.2s
2010-01-18 14:51:33 (63.6 KB/s) - `widget_month.php' saved [15559/15559]
[root@server ~]# wget [url]https://www.example.com/widget_watch_list.php[/url]
--2010-01-18 14:52:16-- [url]https://www.example.com/widget_watch_list.php[/url]
Resolving [url]www.example.com[/url]... 72.29.XX.XX
Connecting to [url]www.example.com¦72.29.XX.XX¦:443[/url]... connected.
HTTP request sent, awaiting response... 200 OK
Length: 17008 (17K) [text/html]
Saving to: `widget_watch_list.php'
100%[===========================================================================>] 17,008 72.3K/s in 0.2s
2010-01-18 14:52:17 (72.3 KB/s) - `widget_watch_list.php' saved [17008/17008]
[root@server ~]# nano widget_watch_list.php
[root@server ~]#

[edited by: phranque at 9:11 pm (utc) on Jan. 18, 2010]
[edit reason] exemplified urls & obscured ips & fix sidescroll [/edit]

[phranque]

perhaps the form requires a session cookie to work.
try requesting the login page while saving the cookie and then provide that cookie when you post the form.