Add an OSM authentication provider

[osqa.git] / forum_modules / osmauth / forms.py

diff --git a/forum_modules/osmauth/forms.py b/forum_modules/osmauth/forms.py
new file mode 100644 (file)
index 0000000..c59475e
--- /dev/null
+++ b/forum_modules/osmauth/forms.py
@@ -0,0 +1,72 @@
+from osm import OpenStreetMapAPI
+from forum.forms import NextUrlField, UserNameField, SetPasswordForm
+from django.utils.translation import ugettext as _
+from django import forms
+
+class OpenStreetMapLoginForm(forms.Form):
+    """ osm account signin form """
+    next = NextUrlField()
+    username = UserNameField(required=False, skip_clean=True)
+    password = forms.CharField(max_length=128,
+                               widget=forms.widgets.PasswordInput(attrs={'class':'required login'}),
+                               required=False)
+
+    def __init__(self, data=None, files=None, auto_id='id_%s',
+                 prefix=None, initial=None):
+        super(OpenStreetMapLoginForm, self).__init__(data, files, auto_id,
+                                                     prefix, initial)
+        self.user_details = None
+
+    def _clean_nonempty_field(self, field):
+        value = None
+        if field in self.cleaned_data:
+            value = self.cleaned_data[field].strip()
+            if value == '':
+                value = None
+        self.cleaned_data[field] = value
+        return value
+
+    def clean_username(self):
+        return self._clean_nonempty_field('username')
+
+    def clean_password(self):
+        return self._clean_nonempty_field('password')
+
+    def clean(self):
+        error_list = []
+        username = self.cleaned_data['username']
+        password = self.cleaned_data['password']
+
+        self.user_details = None
+        if username and password:
+            api = OpenStreetMapAPI(username, password)
+
+            try:
+                self.user_details = api.user_details()
+            except:
+                del self.cleaned_data['username']
+                del self.cleaned_data['password']
+                error_list.insert(0, (_("Please enter valid username and password "
+                "(both are case-sensitive).")))
+                error_list.insert(0, _('Login failed.'))
+
+        elif password == None and username == None:
+            error_list.append(_('Please enter username and password'))
+        elif password == None:
+            error_list.append(_('Please enter your password'))
+        elif username == None:
+            error_list.append(_('Please enter user name'))
+        if len(error_list) > 0:
+            self._errors['__all__'] = forms.util.ErrorList(error_list)
+
+        return self.cleaned_data
+
+    def get_user(self):
+        """ get authenticated user """
+        return "http://www.openstreetmap.org/user/%s" % self.user_details["id"]
+
+    def get_user_data(self):
+        """ get user data for authenticated user """
+        return {
+            "username": self.user_details["display_name"]
+        }