vcs.maemo.org Git - hermes/blob - package/src/org/maemo/hermes/engine/facebook/service.py

   1 import org.maemo.hermes.engine.service
   2
   3 from org.maemo.hermes.engine.names import canonical
   4 from org.maemo.hermes.engine.friend import Friend
   5
   6 class Service(org.maemo.hermes.engine.service.Service):
   7     """Facebook backend for Hermes.
   8
   9        Copyright (c) Andrew Flegg <andrew@bleb.org> 2010.
  10        Copyright (c) Fredrik Wendt <fredrik@wendt.se> 2010.
  11        Released under the Artistic Licence."""
  12
  13     attrs = ['uid', 'name', 'pic_big', 'birthday_date', 'profile_url', 'first_name', 'last_name', 'website']
  14
  15
  16     # -----------------------------------------------------------------------
  17     def __init__(self, facebook, autocreate=False, gui_callback=None):
  18         """Initialise the Facebook service, finding Facebook API keys in gconf and
  19            having a gui_callback available."""
  20
  21         self._gui = gui_callback
  22         self._autocreate = autocreate
  23         self.fb = facebook
  24
  25         self._friends_by_name = {}
  26         self._friends_by_url = {}
  27         self._friends_by_contact = {}
  28         self._contacts_by_friend = {}
  29         self._friends_without_contact = set()
  30         self._known_urls = set()
  31
  32
  33     # -----------------------------------------------------------------------
  34     def get_name(self):
  35         return "Facebook"
  36
  37
  38     # -----------------------------------------------------------------------
  39     def get_friends(self):
  40         return self._contacts_by_friend.keys()
  41
  42
  43     def get_contacts_with_match(self):
  44         return self._friends_by_contact
  45
  46     def get_unmatched_friends(self):
  47         return self._friends_by_name.values()
  48
  49
  50     # -----------------------------------------------------------------------
  51     def pre_process_contact(self, contact):
  52         """Registers URLs of all previous mappings, and makes sure that any Friends with those
  53            URLs don't get match by name."""
  54         for url in contact.get_urls():
  55             self._known_urls.add(url)
  56
  57
  58     # -----------------------------------------------------------------------
  59     def process_friends(self):
  60
  61         def if_defined(data, key, callback):
  62             if key in data and data[key]:
  63                 callback(data[key])
  64
  65         friends_data = self._get_friends_data()
  66         for data in friends_data:
  67             key = canonical(data['name']) # FIXME: deal with name collision
  68             friend = self._create_friend(data['name'])
  69
  70             if 'profile_url' not in data:
  71                 data['profile_url'] = "http://www.facebook.com/profile.php?id=" + str(data['uid'])
  72
  73             if_defined(data, 'website', friend.add_url)
  74             if_defined(data, 'profile_url', friend.add_url)
  75             if_defined(data, 'birthday_date', friend.set_birthday_date)
  76
  77             if_defined(data, 'pic_big', friend.set_photo_url)
  78
  79             if friend.has_birthday_date(): # FIXME: remove this, either you want to add your contacts or not?
  80                 self._friends_without_contact.add(friend)
  81             url = data['profile_url']
  82             self._friends_by_url[url] = friend
  83
  84             if url not in self._known_urls:
  85                 self._friends_by_name[key] = friend
  86
  87
  88     # -----------------------------------------------------------------------
  89     def process_contact(self, contact):
  90         if self._friends_by_contact.has_key(contact):
  91             return
  92
  93         matched_friend = None
  94         # we might get a hit if the friend has setup a URL with another service,
  95         # such as putting the id link to Facebook on the Twitter account's profile
  96         for url in contact.get_urls():
  97             if url in self._friends_by_url:
  98                 matched_friend = self._friends_by_url[url]
  99                 self._register_match(contact, matched_friend)
 100                 print contact.get_name(), " -> match by url -> ", matched_friend
 101                 break
 102
 103         if not matched_friend:
 104             for id in contact.get_identifiers():
 105                 if id in self._friends_by_name:
 106                     matched_friend = self._friends_by_name.pop(id)
 107                     self._register_match(contact, matched_friend)
 108                     print contact.get_name(), " -> match by name -> ", matched_friend
 109                     break
 110
 111
 112     # -----------------------------------------------------------------------
 113     def _register_match(self, contact, friend):
 114         self._friends_without_contact.discard(friend)
 115         self._friends_by_contact[contact] = friend
 116         self._contacts_by_friend[friend] = contact
 117
 118     # -----------------------------------------------------------------------
 119     def _get_friends_data(self):
 120         """Returns a list of dicts, where each dict represents a friend/contact"""
 121
 122         return self.fb.users.getInfo(self.fb.friends.get(), Service.attrs)