Send invitation emails with OpenSlides login.

CHANGELOG

@@ -71,6 +71,7 @@ Users:
   default is now disabled [#3400].
 - Hide password in change password view [#3417].
 - Added a change presence view [#3496].
+- New feature to send invitation emails with OpenSlides login [#3503].
 
 Core:
 - No reload on logoff. OpenSlides is now a full single page

openslides/agenda/static/templates/agenda/item-list.html

@@ -159,7 +159,7 @@
       <div class="col-xs-11 main-header">
         <span class="form-inline text-right pull-right">
           <!-- clear all filters -->
-          <span class="sort-spacer pointer" ng-click="filter.reset()"
+          <span class="sort-spacer pointer" ng-click="filter.reset(isSelectMode)"
             ng-if="filter.areFiltersSet()" ng-disabled="isSelectMode"
             ng-class="{'disabled': isSelectMode}">
             <i class="fa fa-times-circle"></i>

openslides/assignments/static/templates/assignments/assignment-list.html

@@ -93,7 +93,7 @@
       <div class="col-xs-11 main-header">
         <span class="form-inline text-right pull-right">
           <!-- clear all filters -->
-          <span class="sort-spacer pointer" ng-click="filter.reset()"
+          <span class="sort-spacer pointer" ng-click="filter.reset(isSelectMode)"
             ng-if="filter.areFiltersSet()" ng-disabled="isSelectMode"
             ng-class="{'disabled': isSelectMode}">
             <i class="fa fa-times-circle"></i>

openslides/core/static/js/core/base.js

@@ -709,8 +709,9 @@ angular.module('OpenSlidesApp.core', [
                     message += gettextCatalog.getString("The server didn't respond.");
                 } else if (error.data.detail) {
                     message += error.data.detail;
-                } else if (error.status === 500) {
+                } else if (error.status > 500) { // Some kind of server error.
-                    message += gettextCatalog.getString("A server error occurred. Please check the system logs.");
+                    message += gettextCatalog.getString("A server error occurred (%%code%%). Please check the system logs.");
+                    message = message.replace('%%code%%', error.status);
                 } else {
                     for (var e in error.data) {
                         message += e + ': ' + error.data[e] + ' ';

openslides/core/static/js/core/site.js

@@ -535,7 +535,10 @@ angular.module('OpenSlidesApp.core.site', [
                 areFiltersSet = areFiltersSet || (self.filterString !== '');
                 return areFiltersSet !== false;
             };
-            self.reset = function () {
+            self.reset = function (danger) {
+                if (danger) {
+                    return;
+                }
                 _.forEach(self.multiselectFilters, function (filterList, filter) {
                     self.multiselectFilters[filter] = [];
                 });

openslides/global_settings.py

@@ -47,6 +47,11 @@ TEMPLATES = [
     },
 ]
 
+# Email
+# https://docs.djangoproject.com/en/1.10/topics/email/
+
+EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
+EMAIL_TIMEOUT = 5  # Timeout in seconds for blocking operations like the connection attempt
 
 # Internationalization
 # https://docs.djangoproject.com/en/1.10/topics/i18n/

openslides/mediafiles/static/templates/mediafiles/mediafile-list.html

@@ -160,7 +160,7 @@
       <div class="col-xs-11 main-header">
         <span class="form-inline text-right pull-right">
           <!-- reset Filters -->
-          <span class="sort-spacer pointer" ng-click="filter.reset()"
+          <span class="sort-spacer pointer" ng-click="filter.reset(isSelectMode)"
             ng-if="filter.areFiltersSet()" ng-disabled="isSelectMode"
             ng-class="{'disabled': isSelectMode}">
             <i class="fa fa-times-circle"></i>

openslides/motions/static/js/motions/site.js

@@ -1165,8 +1165,8 @@ angular.module('OpenSlidesApp.motions.site', [
             $scope.filter.operateMultiselectFilter('state', id, danger);
             updateStateFilter();
         };
-        $scope.resetFilters = function () {
+        $scope.resetFilters = function (danger) {
-            $scope.filter.reset();
+            $scope.filter.reset(danger);
             updateStateFilter();
         };
         // Sorting

openslides/motions/static/templates/motions/motion-list.html

@@ -396,7 +396,7 @@
         <!-- show all selected multiselectoptions -->
         <div>
           <!-- clear all filters -->
-          <span class="spacer-left-lg pointer" ng-click="resetFilters()"
+          <span class="spacer-left-lg pointer" ng-click="resetFilters(isSelectMode)"
             ng-if="filter.areFiltersSet()" ng-disabled="isSelectMode"
             ng-class="{'disabled': isSelectMode}">
             <i class="fa fa-times-circle"></i>

openslides/users/config_variables.py

@@ -1,3 +1,5 @@
+from textwrap import dedent
+
 from openslides.core.config import ConfigVariable
 
 
@@ -90,3 +92,43 @@ def get_config_variables():
         weight=570,
         group='Participants',
         subgroup='PDF')
+
+    # Email
+
+    yield ConfigVariable(
+        name='users_email_sender',
+        default_value='noreply@yourdomain.com',
+        input_type='string',
+        label='Email sender',
+        weight=600,
+        group='Participants',
+        subgroup='Email')
+
+    yield ConfigVariable(
+        name='users_email_subject',
+        default_value='Your login for {event_name}',
+        input_type='string',
+        label='Email subject',
+        help_text='You can use {event_name} as a placeholder.',
+        weight=605,
+        group='Participants',
+        subgroup='Email')
+
+    yield ConfigVariable(
+        name='users_email_body',
+        default_value=dedent('''\
+            Dear {name},
+
+            this is your OpenSlides login for the event "{event_name}":
+
+                {url}
+                username: {username}
+                password: {password}
+
+            This email was generated automatically.'''),
+        input_type='text',
+        label='Email body',
+        help_text='Use these placeholders: {name}, {event_name}, {url}, {username}, {password}. The url referrs to the system url.',
+        weight=610,
+        group='Participants',
+        subgroup='Email')

openslides/users/migrations/0006_user_email.py

@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.8 on 2017-11-28 08:15
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0005_personalnote_rework'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='email',
+            field=models.EmailField(blank=True, max_length=254),
+        ),
+        migrations.AddField(
+            model_name='user',
+            name='last_email_send',
+            field=models.DateTimeField(blank=True, null=True),
+        ),
+    ]

openslides/users/models.py

@@ -1,3 +1,5 @@
+import smtplib
+
 from random import choice
 
 from django.contrib.auth.hashers import make_password
@@ -9,10 +11,14 @@ from django.contrib.auth.models import (
     Permission,
     PermissionsMixin,
 )
+from django.core import mail
+from django.core.exceptions import ValidationError
 from django.db import models
 from django.db.models import Prefetch, Q
+from django.utils import timezone
 from jsonfield import JSONField
 
+from ..core.config import config
 from ..core.models import Projector
 from ..utils.collection import CollectionElement
 from ..utils.models import RESTModelMixin
@@ -136,6 +142,12 @@ class User(RESTModelMixin, PermissionsMixin, AbstractBaseUser):
         max_length=255,
         blank=True)
 
+    email = models.EmailField(blank=True)
+
+    last_email_send = models.DateTimeField(
+        blank=True,
+        null=True)
+
     # TODO: Try to remove the default argument in the following fields.
 
     structure_level = models.CharField(
@@ -228,6 +240,53 @@ class User(RESTModelMixin, PermissionsMixin, AbstractBaseUser):
         """
         raise RuntimeError('Do not use user.has_perm() but use openslides.utils.auth.has_perm')
 
+    def send_invitation_email(self, connection, skip_autoupdate=False):
+        """
+        Sends an invitation email to the users. Returns True on success, False on failiure.
+        May raise an ValidationError, if something went wrong.
+        """
+        if not self.email:
+            return False
+
+        # Custom dict class that for formatstrings with entries like {not_existent}
+        # no error is raised and this is replaced with ''.
+        class format_dict(dict):
+            def __missing__(self, key):
+                return ''
+
+        message_format = format_dict({
+            'name': str(self),
+            'event_name': config['general_event_name'],
+            'url': config['users_pdf_url'],
+            'username': self.username,
+            'password': self.default_password})
+        message = config['users_email_body'].format(**message_format)
+
+        subject_format = format_dict({'event_name': config['general_event_name']})
+        subject = config['users_email_subject'].format(**subject_format)
+
+        # Create an email and send it.
+        email = mail.EmailMessage(subject, message, config['users_email_sender'], [self.email])
+        try:
+            count = connection.send_messages([email])
+        except smtplib.SMTPDataError as e:
+            error = e.smtp_code
+            helptext = ''
+            if error == 554:
+                helptext = ' Is the email sender correct?'
+            connection.close()
+            raise ValidationError({'detail': 'Error {}. Cannot send email.{}'.format(error, helptext)})
+        except smtplib.SMTPRecipientsRefused:
+            pass  # Run into returning false later
+        else:
+            if count == 1:
+                self.email_send = True
+                self.last_email_send = timezone.now()
+                self.save(skip_autoupdate=skip_autoupdate)
+                return True
+
+        return False
+
 
 class GroupManager(_GroupManager):
     """

openslides/users/serializers.py

@@ -29,6 +29,8 @@ USERCANSEESERIALIZER_FIELDS = (
 
 
 USERCANSEEEXTRASERIALIZER_FIELDS = USERCANSEESERIALIZER_FIELDS + (
+    'email',
+    'last_email_send',
     'comment',
     'is_active',
 )
@@ -51,6 +53,7 @@ class UserFullSerializer(ModelSerializer):
     class Meta:
         model = User
         fields = USERCANSEEEXTRASERIALIZER_FIELDS + ('default_password',)
+        read_only_fields = ('last_email_send',)
 
     def validate(self, data):
         """

openslides/users/static/js/users/csv.js

@@ -12,7 +12,7 @@ angular.module('OpenSlidesApp.users.csv', [])
     function ($filter, Group, gettextCatalog, CsvDownload) {
         var makeHeaderline = function () {
             var headerline = ['Title', 'Given name', 'Surname', 'Structure level', 'Participant number', 'Groups',
-                'Comment', 'Is active', 'Is present', 'Is a committee', 'Initial password'];
+                'Comment', 'Is active', 'Is present', 'Is a committee', 'Initial password', 'Email'];
             return _.map(headerline, function (entry) {
                 return gettextCatalog.getString(entry);
             });
@@ -38,6 +38,7 @@ angular.module('OpenSlidesApp.users.csv', [])
                     row.push(user.is_present ? '1' : '0');
                     row.push(user.is_committee ? '1' : '0');
                     row.push('"' + user.default_password + '"');
+                    row.push('"' + user.email + '"');
                     csvRows.push(row);
                 });
                 CsvDownload(csvRows, 'users-export.csv');
@@ -58,10 +59,10 @@ angular.module('OpenSlidesApp.users.csv', [])
 
                 var csvRows = [makeHeaderline(),
                     // example entries
-                    ['Dr.', 'Max', 'Mustermann', 'Berlin','1234567890', csvGroups, 'xyz', '1', '1', '', ''],
+                    ['Dr.', 'Max', 'Mustermann', 'Berlin','1234567890', csvGroups, 'xyz', '1', '1', '', 'initialPassword', ''],
-                    ['', 'John', 'Doe', 'Washington','75/99/8-2', csvGroup, 'abc', '1', '1', '', ''],
+                    ['', 'John', 'Doe', 'Washington','75/99/8-2', csvGroup, 'abc', '1', '1', '', '', 'john.doe@email.com'],
-                    ['', 'Fred', 'Bloggs', 'London', '', '', '', '', '', '', ''],
+                    ['', 'Fred', 'Bloggs', 'London', '', '', '', '', '', '', '', ''],
-                    ['', '', 'Executive Board', '', '', '', '', '', '', '1', ''],
+                    ['', '', 'Executive Board', '', '', '', '', '', '', '1', '', ''],
 
                 ];
                 CsvDownload(csvRows, 'users-example.csv');

openslides/users/static/js/users/site.js

@@ -306,6 +306,13 @@ angular.module('OpenSlidesApp.users.site', [
                         }
                     ]
                 },
+                {
+                    key: 'email',
+                    type: 'input',
+                    templateOptions: {
+                        label: gettextCatalog.getString('Email')
+                    },
+                },
                 {
                     className: "row",
                     fieldGroup: [
@@ -457,6 +464,13 @@ angular.module('OpenSlidesApp.users.site', [
                         required: true
                     },
                 },
+                {
+                    key: 'email',
+                    type: 'input',
+                    templateOptions: {
+                        label: gettextCatalog.getString('Email')
+                    },
+                },
                 {
                     key: 'about_me',
                     type: 'editor',
@@ -621,6 +635,8 @@ angular.module('OpenSlidesApp.users.site', [
              display_name: gettext('Structure level')},
             {name: 'comment',
              display_name: gettext('Comment')},
+            {name: 'last_email_send',
+             display_name: gettext('Last email send')},
         ];
 
         // pagination
@@ -735,6 +751,33 @@ angular.module('OpenSlidesApp.users.site', [
                 User.save(user);
             });
         };
+        // Send invitation emails
+        $scope.sendInvitationEmails = function () {
+            var user_ids = _
+                .chain($scope.usersFiltered)
+                .filter(function (user) {
+                    return user.selected;
+                })
+                .map(function (user) {
+                    return user.id;
+                })
+                .value();
+            $http.post('/rest/users/user/mass_invite_email/', {
+                user_ids: user_ids,
+            }).then(function (success) {
+                $scope.alert = {
+                    msg: gettextCatalog.getString('Send %num% emails sucessfully.').replace('%num%', success.data.count),
+                    type: 'success',
+                    show: true,
+                };
+                $scope.isSelectMode = false;
+                $scope.uncheckAll();
+            }, function (error) {
+                $scope.alert = ErrorMessage.forAlert(error);
+                $scope.isSelectMode = false;
+                $scope.uncheckAll();
+            });
+        };
 
         // Export as PDF
         $scope.pdfExportUserList = function () {
@@ -1077,7 +1120,7 @@ angular.module('OpenSlidesApp.users.site', [
         };
 
         var FIELDS = ['title', 'first_name', 'last_name', 'structure_level', 'number',
-        'groups', 'comment', 'is_active', 'is_present', 'is_committee', 'default_password'];
+        'groups', 'comment', 'is_active', 'is_present', 'is_committee', 'default_password', 'email'];
         $scope.users = [];
         $scope.onCsvChange = function (csv) {
             $scope.csvImporting = false;
@@ -1721,6 +1764,14 @@ angular.module('OpenSlidesApp.users.site', [
         gettext('WEP');
         gettext('WPA/WPA2');
         gettext('No encryption');
+        gettext('Email');
+        gettext('Email sender');
+        gettext('Email subject');
+        gettext('Your login for {event_name}');
+        gettext('You can use {event_name} as a placeholder.');
+        gettext('Email body');
+        gettext('Dear {name},\n\nthis is your OpenSlides login for the event "{event_name}":\n    {url}\n    username: {username}\n    password: {password}\n\nThis email was generated automatically.');
+        gettext('Use these placeholders: {name}, {event_name}, {url}, {username}, {password}. The url referrs to the system url.');
     }
 ]);
 

openslides/users/static/templates/users/user-detail.html

@@ -32,6 +32,10 @@
         </div>
       <label translate>Participant number</label>
         {{ user.number }}
+      <label translate>Email</label>
+        {{ user.email }}
+      <label ng-if="user.last_email_send" translate>Last email send</label>
+        {{ user.last_email_send | date: 'yyyy-MM-dd HH:mm:ss' }}
       <label translate>About me</label>
         <div ng-bind-html="user.about_me | trusted"></div>
     </fieldset>

openslides/users/static/templates/users/user-import.html

@@ -58,6 +58,7 @@
           <translate>Is present</translate>,
           <translate>Is committee</translate>,
           <translate>Initial password</translate>
+          <translate>Email</translate>
         </code>
       <li translate>At least given name or surname have to be filled in. All
         other fields are optional and may be empty.
@@ -83,7 +84,8 @@
             <th translate>Is active
             <th translate>Is present
             <th translate>Is committee
-            <th translate>Initial password</th>
+            <th translate>Initial password
+            <th translate>Email
             <th ng-if="duplicates > 0">
               <i class="fa fa-exclamation-triangle text-danger"></i>
               <strong class="text-danger" ng-if="duplicates == 1">1 <translate>duplicate</translate></strong>
@@ -158,6 +160,8 @@
                 ng-click="user.is_committee = !user.is_committee"></i>
             <td>
               {{ user.default_password }}
+            <td>
+              {{ user.email }}
             <td ng-if="duplicates > 0">
                 <div ng-if="user.duplicate" uib-tooltip="{{ user.duplicate_info }}" uib-dropdown>
                   <button id="UserAction{{ $index }}" type="button" class="btn btn-default btn-sm"

openslides/users/static/templates/users/user-list.html

@@ -25,6 +25,9 @@
 </div>
 
 <div class="details">
+  <div uib-alert ng-show="alert.show" ng-class="'alert-' + (alert.type || 'warning')" close="alert={}">
+    {{ alert.msg }}
+  </div>
   <div class="row">
     <div class="col-sm-6">
       <!-- select mode -->
@@ -80,6 +83,7 @@
         <option value="is_active" translate>Set/Unset 'is active'</option>
         <option value="is_present" translate>Set/Unset 'is present'</option>
         <option value="is_committee" translate>Set/Unset 'is a committee'</option>
+        <option value="send_invite_email" translate>Send invitation emails</option>
       </select>
       <!-- delete button -->
       <a ng-show="selectedAction == 'delete'"
@@ -129,6 +133,11 @@
         <span ng-if="selectedAction == 'is_present'" translate>Is not present</span>
         <span ng-if="selectedAction == 'is_committee'" translate>Is not a committee</span>
       </a>
+      <!-- send_invite_email -->
+      <a ng-show="selectedAction == 'send_invite_email'" class="btn btn-default btn-sm"
+        ng-click="sendInvitationEmails()">
+        <translate>Send invitation emails</translate>
+      </a>
     </div>
   </div>
 
@@ -172,7 +181,7 @@
       <div class="col-xs-11 main-header">
         <span class="form-inline text-right pull-right">
           <!-- reset Filters -->
-          <span class="sort-spacer pointer" ng-click="filter.reset()"
+          <span class="sort-spacer pointer" ng-click="filter.reset(isSelectMode)"
             ng-if="filter.areFiltersSet()" ng-disabled="isSelectMode"
             ng-class="{'disabled': isSelectMode}">
             <i class="fa fa-times-circle"></i>
@@ -414,6 +423,13 @@
                 {{ user.comment | limitTo:25}}{{ user.comment.length > 25 ? '...' : '' }}
               </div>
             </div>
+
+            <div os-perms="users.can_manage" ng-show="user.last_email_send">
+              <div uib-tooltip="{{ 'Last email send to the user' | translate }}" tooltip-placement="top-left">
+                <i class="fa fa-envelope"></i>
+                {{ user.last_email_send | date: 'yyyy-MM-dd HH:mm:ss' }}
+              </div>
+            </div>
           </small>
         </div>
         <div style="width: 40%;" class="pull-right" os-perms="users.can_see_extra_data">

openslides/users/views.py

@@ -1,10 +1,13 @@
+import smtplib
 from typing import List  # noqa
 
+from django.conf import settings
 from django.contrib.auth import login as auth_login
 from django.contrib.auth import logout as auth_logout
 from django.contrib.auth import update_session_auth_hash
 from django.contrib.auth.forms import AuthenticationForm
 from django.contrib.auth.password_validation import validate_password
+from django.core import mail
 from django.core.exceptions import ValidationError as DjangoValidationError
 from django.db import transaction
 from django.utils.encoding import force_text
@@ -59,7 +62,7 @@ class UserViewSet(ModelViewSet):
             result = has_perm(self.request.user, 'users.can_see_name')
         elif self.action in ('update', 'partial_update'):
             result = self.request.user.is_authenticated()
-        elif self.action in ('create', 'destroy', 'reset_password', 'mass_import'):
+        elif self.action in ('create', 'destroy', 'reset_password', 'mass_import', 'mass_invite_email'):
             result = (has_perm(self.request.user, 'users.can_see_name') and
                       has_perm(self.request.user, 'users.can_see_extra_data') and
                       has_perm(self.request.user, 'users.can_manage'))
@@ -165,6 +168,44 @@ class UserViewSet(ModelViewSet):
             'detail': _('{number} users successfully imported.').format(number=len(created_users)),
             'importedTrackIds': imported_track_ids})
 
+    @list_route(methods=['post'])
+    def mass_invite_email(self, request):
+        """
+        Endpoint to send invitation emails to all given users (by id). Returns the
+        number of emails send.
+        """
+        user_ids = request.data.get('user_ids')
+        if not isinstance(user_ids, list):
+            raise ValidationError({'detail': 'User_ids has to be a list.'})
+        for user_id in user_ids:
+            if not isinstance(user_id, int):
+                raise ValidationError({'detail': 'User_id has to be an int.'})
+        users = User.objects.filter(pk__in=user_ids)
+
+        # Sending Emails. Keep track, which users gets an email.
+        # First, try to open the connection to the smtp server.
+        connection = mail.get_connection(fail_silently=False)
+        try:
+            connection.open()
+        except ConnectionRefusedError:
+            raise ValidationError({'detail': 'Cannot connect to SMTP server on {}:{}'.format(
+                settings.EMAIL_HOST,
+                settings.EMAIL_PORT)})
+        except smtplib.SMTPException as e:
+            raise ValidationError({'detail': '{}: {}'.format(e.errno, e.strerror)})
+
+        success_users = []
+        try:
+            for user in users:
+                if user.send_invitation_email(connection, skip_autoupdate=True):
+                    success_users.append(user)
+        except DjangoValidationError as e:
+            raise ValidationError(e.message_dict)
+
+        connection.close()
+        inform_changed_data(success_users)
+        return Response({'count': len(success_users)})
+
 
 class GroupViewSetMetadata(SimpleMetadata):
     """

openslides/utils/settings.py.tpl

@@ -43,6 +43,13 @@ SECRET_KEY = %(secret_key)r
 
 DEBUG = %(debug)s
 
+# Email settings
+# For SSL/TLS specific settings see https://docs.djangoproject.com/en/1.11/topics/email/#smtp-backend
+
+EMAIL_HOST = 'localhost'
+EMAIL_PORT = 587
+EMAIL_HOST_USER = ''
+EMAIL_HOST_PASSWORD = ''
 
 # Database
 # https://docs.djangoproject.com/en/1.10/ref/settings/#databases

tests/integration/users/test_viewset.py

@@ -1,3 +1,4 @@
+from django.core import mail
 from django.core.urlresolvers import reverse
 from django_redis import get_redis_connection
 from rest_framework import status
@@ -336,6 +337,30 @@ class UserMassImport(TestCase):
         self.assertEqual(User.objects.count(), 3)
 
 
+class UserSendIntivationEmail(TestCase):
+    """
+    Tests sending an email to the user.
+    """
+    email = "admin@test-domain.com"
+
+    def setUp(self):
+        self.client = APIClient()
+        self.client.login(username='admin', password='admin')
+        self.admin = User.objects.get()
+        self.admin.email = self.email
+        self.admin.save()
+
+    def test_email_sending(self):
+        response = self.client.post(
+            reverse('user-mass-invite-email'),
+            {'user_ids': [self.admin.pk]},
+            format='json')
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.data['count'], 1)
+        self.assertEqual(len(mail.outbox), 1)
+        self.assertEqual(mail.outbox[0].to[0], self.email)
+
+
 class GroupMetadata(TestCase):
     def test_options_request_as_anonymous_user_activated(self):
         config['general_system_enable_anonymous'] = True

tests/settings.py

@@ -10,6 +10,7 @@ from openslides.global_settings import *  # noqa
 
 OPENSLIDES_USER_DATA_PATH = os.path.realpath(os.path.dirname(os.path.abspath(__file__)))
 
+EMAIL_BACKEND = 'django.core.mail.backends.locmem.EmailBackend'
 
 # OpenSlides plugins