1 files changed, 185 insertions, 0 deletions
diff --git a/facebook.py b/facebook.py
new file mode 100644
index 0000000..c774ecf
--- /dev/null
+++ b/facebook.py
@@ -0,0 +1,185 @@
+
+import re
+import requests
+
+
+class FbAuthenticationError(Exception):
+    pass
+
+
+class FacebookAPI(object):
+
+    def __init__(self, email, password):
+        """Create a new Facebook interface."""
+
+        self._email = email
+        self._password = password
+
+        self._session = None
+
+        self._login()
+
+
+    def _build_login_params(self, content):
+        """Parse HTML code to get POST login parameters."""
+
+        params = {}
+
+        # Get the form parameters
+
+        input_exp = re.compile('<input[^>]*>')
+
+        type_exp = re.compile('type="hidden"')
+        id_exp = re.compile('id="([^"]*)"')
+        name_exp = re.compile('name="([^"]*)"')
+        value_exp = re.compile('value="([^"]*)"')
+
+        form = re.compile('<form.*</form>').search(content).group()
+
+        for inp in input_exp.findall(form):
+
+            match = type_exp.search(inp)
+
+            if match is None:
+                continue
+
+            name = name_exp.search(inp)
+
+            if name is None:
+                continue
+            else:
+                name = name.group(1)
+
+            value = value_exp.search(inp)
+
+            if value is None:
+                value = ''
+            else:
+                value = value.group(1)
+
+            params[name] = value
+
+        # Extend with user login
+
+        params["email"] = self._email
+        params["pass"] = self._password
+        params["login"] = "1"
+
+        return params
+
+
+    def _login(self):
+        """Log into Facebook services."""
+
+        headers = {
+            "Host": "www.facebook.com",
+            "User-agent": "Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0",
+            "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
+            "Accept-Language": "en-US,en;q=0.5",
+            "Accept-Encoding": "gzip, deflate",
+            "DNT": "1",
+            "Connection": "keep-alive",
+            "Cache-Control": "max-age=0",
+        }
+
+        self._session = requests.Session()
+        self._session.headers.update(headers)
+
+        response = self._session.post('https://www.facebook.com/login.php', data={})
+
+        params = self._build_login_params(str(response.content))
+
+        response = self._session.post('https://www.facebook.com/login.php', data=params)
+
+        #print('headers', response.headers)
+        #print('cookies', requests.utils.dict_from_cookiejar(self._session.cookies))
+
+        # If c_user cookie is present, login was successful
+
+        if not('c_user' in self._session.cookies):
+            raise FbAuthenticationError()
+
+
+    def get_user_id(self):
+        """Get the identifier for the registered user."""
+
+        if not('c_user' in self._session.cookies):
+            raise FbAuthenticationError()
+
+        return self._session.cookies['c_user']
+
+
+    def _build_access_params(self, content):
+        """Parse HTML code to get POST access parameters."""
+
+        params = {}
+
+        # Get the form parameters
+
+        input_exp = re.compile('<input[^>]*>')
+
+        type_exp = re.compile('type="hidden"')
+        id_exp = re.compile('id="([^"]*)"')
+        name_exp = re.compile('name="([^"]*)"')
+        value_exp = re.compile('value="([^"]*)"')
+
+        form = re.compile('platformDialogForm.*form>').search(content).group()
+
+        form = form.replace('\\u003C', '<')
+        form = form.replace('\\', '')
+
+        for inp in input_exp.findall(form):
+
+            match = type_exp.search(inp)
+
+            if match is None:
+                continue
+
+            name = name_exp.search(inp)
+
+            if name is None:
+                continue
+            else:
+                name = name.group(1)
+
+            value = value_exp.search(inp)
+
+            if value is None:
+                value = ''
+            else:
+                value = value.group(1)
+
+            params[name] = value
+
+        return params
+
+
+    def get_tinder_token(self):
+        """Get an access token for Tinder."""
+
+        # Cf. https://developers.facebook.com/docs/facebook-login/manually-build-a-login-flow
+
+        params = {
+            "redirect_uri": "fb464891386855067://authorize/",
+            "scope": "user_birthday,user_photos,user_education_history,email,user_relationship_details" \
+                     + ",user_friends,user_work_history,user_likes",
+            "response_type": "token,signed_request",
+            "client_id": "464891386855067"
+        }
+
+        url = 'https://www.facebook.com/v2.6/dialog/oauth'
+
+        response = self._session.get(url, params=params)
+
+        params = self._build_access_params(str(response.content))
+
+        response = self._session.post('https://www.facebook.com/v2.6/dialog/oauth/confirm?dpr=1', data=params)
+
+        token_exp = re.compile('access_token=([^&]*)&')
+
+        match = token_exp.search(str(response.content))
+
+        if match is None:
+            raise FbAuthenticationError
+
+        return match.group(1)