1 files changed, 103 insertions, 0 deletions
diff --git a/django_authopenid/external_login.py b/django_authopenid/external_login.py
new file mode 100644
index 00000000..bd49c009
--- /dev/null
+++ b/django_authopenid/external_login.py
@@ -0,0 +1,103 @@
+#this file contains stub functions that can be extended to support
+#connect legacy login with external site
+import settings
+from django_authopenid.models import ExternalLoginData
+import httplib
+import urllib
+import Cookie
+import cookielib
+from django import forms
+import xml.dom.minidom as xml
+import logging
+
+def login(request,user):
+    """performs the additional external login operation
+    """
+    pass
+
+def set_login_cookies(response,user):
+    #should be unique value by design
+    try:
+        eld = ExternalLoginData.objects.get(user=user)
+
+        data = eld.external_session_data
+        dom = xml.parseString(data)
+        login_response = dom.getElementsByTagName('login')[0]
+        userid = login_response.getAttribute('lguserid') 
+        username = login_response.getAttribute('lgusername')
+        token = login_response.getAttribute('lgtoken')
+        prefix = login_response.getAttribute('cookieprefix').decode('utf-8')
+        sessionid = login_response.getAttribute('sessionid')
+
+        c = {}
+        c[prefix + 'UserName'] = username
+        c[prefix + 'UserID'] = userid
+        c[prefix + 'Token'] = token
+        c[prefix + '_session'] = sessionid
+
+        #custom code that copies cookies from external site
+        #not sure how to set paths and domain of cookies here
+        for key in c:
+            if c[key]:
+                response.set_cookie(str(key),value=str(c[key]))
+    except ExternalLoginData.DoesNotExist:
+        #this must be an OpenID login
+        pass
+
+#function to perform external logout, if needed
+def logout(request):
+    pass
+
+#should raise User.DoesNotExist or pass
+def clean_username(username):
+    return username
+
+def check_password(username,password):
+    """connects to external site and submits username/password pair
+    return True or False depending on correctness of login
+    saves remote unique id and remote session data in table ExternalLoginData
+    may raise forms.ValidationError
+    """
+    host = settings.EXTERNAL_LEGACY_LOGIN_HOST
+    port = settings.EXTERNAL_LEGACY_LOGIN_PORT
+    ext_site = httplib.HTTPConnection(host,port)
+
+    #custom code. this one does authentication through
+    #MediaWiki API
+    params = urllib.urlencode({'action':'login','format':'xml',
+            'lgname':username,'lgpassword':password})
+    headers = {"Content-type": "application/x-www-form-urlencoded",
+                'User-Agent':"User-Agent':'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7",
+              "Accept": "text/xml"}
+    ext_site.request("POST","/wiki/api.php",params,headers)
+    response = ext_site.getresponse()
+    if response.status != 200:
+        raise forms.ValidationError('error ' + response.status + ' ' + response.reason)
+    data = response.read().strip()
+    ext_site.close()
+
+    dom = xml.parseString(data)
+    login = dom.getElementsByTagName('login')[0]
+    result = login.getAttribute('result')
+    
+    if result == 'Success':
+        username = login.getAttribute('lgusername')
+        try:
+            eld = ExternalLoginData.objects.get(external_username=username)
+        except ExternalLoginData.DoesNotExist:
+            eld = ExternalLoginData()
+        eld.external_username = username
+        eld.external_session_data = data
+        eld.save()
+        return True 
+    else:
+        error = login.getAttribute('details')
+        raise forms.ValidationError(error)
+    return False 
+
+def createuser(username,email,password):
+    pass
+
+#retrieve email address
+def get_email(username,password):
+    return ''