Is there any way I can programmatically authorize to upload multiple files to Dreamwidth by a script

[ari_linn]

I have about 100 files that I want to upload to Dreamwidth. I want to do it with a script, if it's possible. I checked what happens in my browser when I'm logged in and uploading a file at https://www.dreamwidth.org/file/new , and it was pretty much the following request:

POST https://www.dreamwidth.org/api/v1/file/new 
Content-Type: multipart/form-data
Cookies: ljuniq=THISTOKENCHANGESWITHEVERYREQUEST;
BMLschemepref=celerity-local;
__utma=SOMETOKEN;ljmastersession=YETANOTHERTOKEN;
ljloggedin=FINALTOKEN

FILE BODY

My problem now is: how do I get the whole cookies/authorization stuff, or at least THISTOKENCHANGESWITHEVERYREQUEST token (other stuff seems to be reused? can I hijack my current session and simply use cookies from it in my script?) Is there any way to do it programmatically?