fixes #298, ldap email addresses created by rhodecode automatically during first login didn't get converted to lower case, which lead to lookup failures and than wrong checks for uniqueness. Fixed that by putting a setter on db model column that will enforce converting to lowercase.

rhodecode/model/db.py

@@ -265,7 +265,7 b' class User(Base, BaseModel):'
     admin = Column("admin", Boolean(), nullable=True, unique=None, default=False)
     name = Column("name", String(length=255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)
     lastname = Column("lastname", String(length=255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)
-    email = Column("email", String(length=255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)
+    _email = Column("email", String(length=255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)
     last_login = Column("last_login", DateTime(timezone=False), nullable=True, unique=None, default=None)
     ldap_dn = Column("ldap_dn", String(length=255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)
     api_key = Column("api_key", String(length=255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)
@@ -281,6 +281,14 b' class User(Base, BaseModel):'
 
     notifications = relationship('UserNotification',)
 
+    @hybrid_property
+    def email(self):
+        return self._email
+
+    @email.setter
+    def email(self, val):
+        self._email = val.lower() if val else None
+
     @property
     def full_name(self):
         return '%s %s' % (self.name, self.lastname)
@@ -324,7 +332,10 b' class User(Base, BaseModel):'
         return q.scalar()
 
     @classmethod
-    def get_by_email(cls, email, cache=False):
+    def get_by_email(cls, email, case_insensitive=False, cache=False):
+        if case_insensitive:
+            q = cls.query().filter(cls.email.ilike(email))
+        else:
         q = cls.query().filter(cls.email == email)
 
         if cache:

rhodecode/model/forms.py

@@ -416,7 +416,7 b' def UniqSystemEmail(old_data):'
         def to_python(self, value, state):
             value = value.lower()
             if old_data.get('email') != value:
-                user = User.query().filter(User.email == value).scalar()
+                user = User.get_by_email(value, case_insensitive=True)
                 if user:
                     raise formencode.Invalid(
                                     _("This e-mail address is already taken"),
@@ -428,7 +428,7 b' def UniqSystemEmail(old_data):'
 class ValidSystemEmail(formencode.validators.FancyValidator):
     def to_python(self, value, state):
         value = value.lower()
-        user = User.query().filter(User.email == value).scalar()
+        user = User.get_by_email(value, case_insensitive=True)
         if  user is None:
             raise formencode.Invalid(_("This e-mail address doesn't exist.") ,
                                      value, state)