added support for user to change email address

mediagoblin/auth/lib.py

@@ -95,7 +95,8 @@ EMAIL_VERIFICATION_TEMPLATE = (
     u"userid={userid}&token={verification_key}")
 
 
-def send_verification_email(user, request):
+def send_verification_email(user, request, email=None,
+                            rendered_email=None):
     """
     Send the verification email to users to activate their accounts.
 
@@ -103,19 +104,23 @@ def send_verification_email(user, request):
     - user: a user object
     - request: the request
     """
-    rendered_email = render_template(
-        request, 'mediagoblin/auth/verification_email.txt',
-        {'username': user.username,
-         'verification_url': EMAIL_VERIFICATION_TEMPLATE.format(
-                host=request.host,
-                uri=request.urlgen('mediagoblin.auth.verify_email'),
-                userid=unicode(user.id),
-                verification_key=user.verification_key)})
+    if not email:
+        email = user.email
+
+    if not rendered_email:
+        rendered_email = render_template(
+            request, 'mediagoblin/auth/verification_email.txt',
+            {'username': user.username,
+            'verification_url': EMAIL_VERIFICATION_TEMPLATE.format(
+                    host=request.host,
+                    uri=request.urlgen('mediagoblin.auth.verify_email'),
+                    userid=unicode(user.id),
+                    verification_key=user.verification_key)})
 
     # TODO: There is no error handling in place
     send_email(
         mg_globals.app_config['email_sender_address'],
-        [user.email],
+        [email],
         # TODO
         # Due to the distributed nature of GNU MediaGoblin, we should
         # find a way to send some additional information about the

mediagoblin/edit/forms.py

@@ -16,9 +16,11 @@
 
 import wtforms
 
-from mediagoblin.tools.text import tag_length_validator, TOO_LONG_TAG_WARNING
+from mediagoblin.tools.text import tag_length_validator
 from mediagoblin.tools.translate import lazy_pass_to_ugettext as _
 from mediagoblin.tools.licenses import licenses_as_choices
+from mediagoblin.auth.forms import normalize_user_or_email_field
+
 
 class EditForm(wtforms.Form):
     title = wtforms.TextField(
@@ -59,6 +61,16 @@ class EditProfileForm(wtforms.Form):
 
 
 class EditAccountForm(wtforms.Form):
+    new_email = wtforms.TextField(
+        _('New email address'),
+        [wtforms.validators.Optional(),
+         normalize_user_or_email_field(allow_user=False)])
+    password = wtforms.PasswordField(
+        _('Password'),
+        [wtforms.validators.Optional(),
+         wtforms.validators.Length(min=5, max=1024)],
+        description=_(
+            'Enter your old password to prove you own this account.'))
     license_preference = wtforms.SelectField(
         _('License preference'),
         [

mediagoblin/edit/routing.py

@@ -26,3 +26,5 @@ add_route('mediagoblin.edit.delete_account', '/edit/account/delete/',
     'mediagoblin.edit.views:delete_account')
 add_route('mediagoblin.edit.pass', '/edit/password/',
     'mediagoblin.edit.views:change_pass')
+add_route('mediagoblin.edit.verify_email', '/edit/verify_email',
+    'mediagoblin.edit.views:verify_email')

mediagoblin/edit/views.py

@@ -23,18 +23,22 @@ from mediagoblin import messages
 from mediagoblin import mg_globals
 
 from mediagoblin.auth import lib as auth_lib
+from mediagoblin.auth.views import email_debug_message
 from mediagoblin.edit import forms
 from mediagoblin.edit.lib import may_edit_media
 from mediagoblin.decorators import (require_active_login, active_user_from_url,
-     get_media_entry_by_id,
-     user_may_alter_collection, get_user_collection)
-from mediagoblin.tools.response import render_to_response, \
-    redirect, redirect_obj
+                            get_media_entry_by_id, user_may_alter_collection,
+                            get_user_collection)
+from mediagoblin.tools.crypto import get_timed_signer_url
+from mediagoblin.tools.response import (render_to_response,
+                                        redirect, redirect_obj, render_404)
 from mediagoblin.tools.translate import pass_to_ugettext as _
+from mediagoblin.tools.template import render_template
 from mediagoblin.tools.text import (
     convert_to_tag_list_of_dicts, media_tags_as_string)
 from mediagoblin.tools.url import slugify
 from mediagoblin.db.util import check_media_slug_used, check_collection_slug_used
+from mediagoblin.db.models import User
 
 import mimetypes
 
@@ -212,6 +216,10 @@ def edit_profile(request, url_user=None):
         {'user': user,
          'form': form})
 
+EMAIL_VERIFICATION_TEMPLATE = (
+    u'{uri}?'
+    u'token={verification_key}')
+
 
 @require_active_login
 def edit_account(request):
@@ -220,27 +228,57 @@ def edit_account(request):
         wants_comment_notification=user.wants_comment_notification,
         license_preference=user.license_preference)
 
-    if request.method == 'POST':
-        form_validated = form.validate()
-
-        if form_validated and \
-                form.wants_comment_notification.validate(form):
+    if request.method == 'POST' and form.validate():
+        if form.wants_comment_notification.validate(form):
             user.wants_comment_notification = \
                 form.wants_comment_notification.data
 
-        if form_validated and \
-                form.license_preference.validate(form):
+        if form.license_preference.validate(form):
             user.license_preference = \
                 form.license_preference.data
 
-        if form_validated and not form.errors:
+        if form.new_email.data:
+            if not form.password.data:
+                form.password.errors.append(
+                    _('This field is required.'))
+            elif not auth_lib.bcrypt_check_password(
+                    form.password.data, user.pw_hash):
+                form.password.errors.append(
+                    _('Wrong password.'))
+            else:
+                new_email = form.new_email.data
+                users_with_email = User.query.filter_by(
+                    email=new_email).count()
+                if users_with_email:
+                    form.new_email.errors.append(
+                        _('Sorry, a user with that email address'
+                          ' already exists.'))
+                else:
+                    verification_key = get_timed_signer_url(
+                        'mail_verification_token').dumps({
+                            'user': user.id,
+                            'email': new_email})
+
+                    rendered_email = render_template(
+                        request, 'mediagoblin/edit/verification.txt',
+                        {'username': user.username,
+                         'verification_url': EMAIL_VERIFICATION_TEMPLATE.format(
+                            uri=request.urlgen('mediagoblin.edit.verify_email',
+                                               qualified=True),
+                            verification_key=verification_key)})
+
+                    email_debug_message(request)
+                    auth_lib.send_verification_email(user, request, new_email,
+                                                     rendered_email)
+
+        if not form.errors:
             user.save()
             messages.add_message(request,
-                messages.SUCCESS,
-                _("Account settings saved"))
+                                 messages.SUCCESS,
+                                 _("Account settings saved"))
             return redirect(request,
-                'mediagoblin.user_pages.user_home',
-                user=user.username)
+                            'mediagoblin.user_pages.user_home',
+                            user=user.username)
 
     return render_to_response(
         request,
@@ -369,3 +407,38 @@ def change_pass(request):
         'mediagoblin/edit/change_pass.html',
         {'form': form,
          'user': user})
+
+
+def verify_email(request):
+    """
+    Email verification view for changing email address
+    """
+    # If no token, we can't do anything
+    if not 'token' in request.GET:
+        return render_404(request)
+
+    # This throws an error, if the thing is faked or expired
+    # should be catched, probably.
+    token = get_timed_signer_url("mail_verification_token") \
+            .loads(request.GET['token'], max_age=10*24*3600)
+
+    user = User.query.filter_by(id=int(token['user'])).first()
+
+    if user:
+        user.email = token['email']
+        user.save()
+
+        messages.add_message(
+            request,
+            messages.SUCCESS,
+            _('Your email address has been verified.'))
+
+    else:
+            messages.add_message(
+                request,
+                messages.ERROR,
+                _('The verification key or user id is incorrect.'))
+
+    return redirect(
+        request, 'mediagoblin.user_pages.user_home',
+        user=user.username)

mediagoblin/templates/mediagoblin/edit/edit_account.html

@@ -46,6 +46,8 @@
           {% trans %}Change your password.{% endtrans %}
         </a>
       </p>
+      {{ wtforms_util.render_field_div(form.new_email) }}
+      {{ wtforms_util.render_field_div(form.password) }}
       <div class="form_field_input">
         <p>{{ form.wants_comment_notification }}
            {{ wtforms_util.render_label(form.wants_comment_notification) }}</p>

mediagoblin/templates/mediagoblin/edit/verification.txt

@@ -0,0 +1,29 @@
+{#
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+-#}
+
+{% trans username=username, verification_url=verification_url|safe -%}
+Hi,
+
+We wanted to verify that you are {{ username }}. If this is the case, then 
+please follow the link below to verify your new email address.
+
+{{ verification_url }}
+
+If you are not {{ username }} or didn't request an email change, you can ignore
+this email.
+{%- endtrans %}