Am 2008-05-27 14:35:27, schrieb Marco Scholtyssek:
> Hallo Christian,
>
> ich habe curl mal ausprobiert. Jetzt habe ich eine Frage dazu:
>
> Wenn ich ein HTTP-Request per GET übergebe, ist mir klar wie das
> funktioniert, aber wie mache ich das, wenn die Website den HTTP-Request
> per POST erwartet?
----[ man 'wget' ]------------------------------------------------------
--post-data=string
--post-file=file
Use POST as the method for all HTTP requests and send the
specified data in the request body. "--post-data" sends
string as data, whereas "--post-file" sends the contents
of file. Other than that, they work in exactly the same
way.
Please be aware that Wget needs to know the size of the
POST data in advance. Therefore the argument to
"--post-file" must be a regular file; specifying a FIFO or
something like /dev/stdin won't work. It's not quite
clear how to work around this limitation inherent in
HTTP/1.0. Although HTTP/1.1 introduces chunked transfer
that doesn't require knowing the request length in
advance, a client can't use chunked unless it knows it's
talking to an HTTP/1.1 server. And it can't know that
until it receives a response, which in turn requires the
request to have been completed -- a chicken-and-egg prob-
lem.
Note: if Wget is redirected after the POST request is com-
pleted, it will not send the POST data to the redirected
URL. This is because URLs that process POST often respond
with a redirection to a regular page (although that's
technically disallowed), which does not desire or accept
POST. It is not yet clear that this behavior is optimal;
if it doesn't work out, it will be changed.
This example shows how to log to a server using POST and
then proceed to download the desired pages, presumably
only accessible to authorized users:
# Log in to the server. This can be done only once
wget --save-cookies cookies.txt \
--post-data 'user=foo&password=bar' \
http://server.com/auth.php
# Now grab the page or pages we care about.
wget --load-cookies cookies.txt \
-p http://server.com/interesting/article.php
------------------------------------------------------------------------
Thanks, Greetings and nice Day
Michelle Konzack
Systemadministrator
24V Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant
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