Adding cookie or header to picture links?

vidmard · 2011-01-03 11:35

I'm fairly new to both XBMC and Python and I have started working on Zenfolio (http://www.zenfolio.com) add-on. I have basic funcionality in place and I can browse galleries and view images

The problem I'm facing now is related to security. I can only browse public photos. Zenfolio has really nice JSON API which lets me login and browse through hierarchy and so on. But when I need to download original sized photo, request should have a custom http header or cookie. Here is a quote from Zenfolio docs...
[INDENT]
If access to a photo is restricted, the application needs to provide the authentication token or the keyring along with the GET request in a manner similar to the Zenfolio API calls. To specify the authentication token, the application should include an X-Zenfolio-Token header or a zf_token cookie. To specify the keyring, the application should include an X-Zenfolio-Keyring header or a zf_keyring cookie. See the Authentication and Using the Keyring chapters for more information.
http://www.zenfolio.com/zf/help/api/guide/download
[/INDENT]

Currently I'm accessing photos by adding a link to ListItem and marking it as isFolder = False. I don't see a way to add cookie/header. Should I download image and cache it and providing link to local image? I would rather not do that, if possible.

Any examples, links or suggestions for a solution are welcome!

anarchintosh · 2011-01-04 18:15

here are some the methods you need, might be a little messy:

PHP Code:

import cookielib,sys,os,urllib,urllib2

def openfile(filename):
     fh = open(filename, 'r')
     contents=fh.read()
     fh.close()
     return contents

def xbmcpath(path,filename):
     translatedpath = os.path.join(xbmc.translatePath( path ), ''+filename+'')
     return translatedpath

scriptname='name of your script'
scriptdatapath='special://profile/addon_data/'+scriptname



mycookie = xbmcpath(scriptdatapath,'cookies.lwp')
print 'Cookie path: '+mycookie 

then this is what you use when you want to load a page with a cookie.

PHP Code:

req = urllib2.Request(url)
req.add_header('User-Agent', 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3')
#if you need to add a referrer user        req.add_header('Referer', 'http://page-that-you-want-to-refer')
cj = cookielib.LWPCookieJar()
cooky=cj.load(mycookie)
print cooky
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cooky))
response = opener.open(req) 

i've forgotten exactly how to save a cookie from a url with urllib, but heres the code i use to log into megaupload and save the cookie. it uses the mechanize module....

PHP Code:

# Browser
               br = mechanize.Browser()

               # Cookie Jar
               cj = cookielib.LWPCookieJar()
               br.set_cookiejar(cj)

               # Browser options
               br.set_handle_equiv(True)
               br.set_handle_gzip(True)
               br.set_handle_redirect(True)
               br.set_handle_referer(True)
               br.set_handle_robots(False)

               # Follows refresh 0 but not hangs on refresh > 0
               br.set_handle_refresh(mechanize._http.HTTPRefreshProcessor(), max_time=1)

               # User-Agent
               br.addheaders = [('User-agent', 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008071615 Fedora/3.0.1-1.fc9 Firefox/3.0.1')]

               # The site we will navigate into, handling it's session
               br.open('http://www.megaupload.com/?c=login')

               # Select the first (index zero) form
               br.select_form('loginfrm')

               #User credentials
               br.form['username'] = megauser
               br.form['password'] = megapass
               br.submit()

               #check if login worked
               loginerror="Username and password do not match" in br.response().read()
               cj.save(megacookie) 

it's all mostly a google away, this page might help

vidmard · 2011-01-05 01:28

Tnx, anarchintosh. But if I read your code snippets correctly, this solution is helpful when pulling stuff locally for pasing or storing. What I was asking if I couple somehow "inject" cookie or customer http header when XBMC is downloading JPG image when user clicks on listitem/folder/item created my my addon.

In meanwhile, support from Zenfolio did great job and told me how to URL encode authentication, so my problem is solved without cookies/header.

Unbehagen · 2011-02-26 09:09

This thing might help you out: http://forum.xbmc.org/showthread.php?tid=95369

Unbehagen Skilled Python Coder Posts: 342 Joined: Jul 2007 Reputation: 3 Location: Bremen, Germany	2011-02-26 09:09 Post: #4 This thing might help you out: http://forum.xbmc.org/showthread.php?tid=95369
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