Changes for Python client to login and exchange webapp server data

gramps/webapp/client.py

@@ -0,0 +1,49 @@
+from __future__ import print_function
+
+import urllib2
+import urllib
+
+import logging
+LOG = logging.getLogger(".web")
+
+PATH_TO_LOGIN = "login/"
+
+def login(base_address, username=None, password=None):
+    # fetch the login page in order to get the csrf token
+    cookieHandler = urllib2.HTTPCookieProcessor()
+    opener = urllib2.build_opener(urllib2.HTTPSHandler(), cookieHandler)
+    urllib2.install_opener(opener)
+    login_url = base_address + PATH_TO_LOGIN
+    LOG.info("login_url: " + login_url)
+    login_page = opener.open(login_url)
+    # attempt to get the csrf token from the cookie jar
+    csrf_cookie = None
+    for cookie in cookieHandler.cookiejar:
+        if cookie.name == 'csrftoken':
+             csrf_cookie = cookie
+             break
+    if not cookie:
+        raise IOError("No csrf cookie found")
+    LOG.info( "found csrf cookie: " + str(csrf_cookie))
+    LOG.info( "csrf_token = %s" % csrf_cookie.value)
+    # login using the usr, pwd, and csrf token
+    login_data = urllib.urlencode(dict(
+        username=username, password=password,
+        csrfmiddlewaretoken=csrf_cookie.value))
+    LOG.info("login_data: %s" % login_data)
+    LOG.info("login_url: %s" % login_url)
+    req = urllib2.Request(login_url, login_data)
+    req.add_header('Referer', login_url)
+    response = urllib2.urlopen(req)
+    # <--- 403: FORBIDDEN here
+    LOG.info('response url:\n' + str(response.geturl()) + '\n')
+    LOG.info('response info:\n' + str(response.info()) + '\n')
+    # should redirect to the welcome page here, if back at log in - refused
+    url = response.geturl()
+    LOG.info("url:", url)
+    LOG.info("login_url:", login_url)
+    if url == login_url:
+        return None
+    LOG.info('\t%s is logged in' % username)
+    # save the cookies/opener for further actions
+    return opener 

gramps/webapp/settings.py

@@ -163,3 +163,7 @@ DEFAULT_CHARSET = "utf-8"
 LOGGING_CONFIG = None
 AUTH_USER_MODEL = 'auth.User'
 ## End Changes for Django 1.5.4
+
+LOGIN_URL = "/login/"
+LOGOUT_URL = "/logout"
+LOGIN_REDIRECT_URL = "/"