From 1ac4dd8171f71402c19460283139dbdc563c4ed5 Mon Sep 17 00:00:00 2001
From: Sabe Jones <sabrecat@gmail.com>
Date: Wed, 7 Nov 2018 15:00:22 -0600
Subject: [PATCH] feat(usernames): invite by username

---
 website/client/assets/scss/modal.scss         |   1 +
 .../client/components/groups/inviteModal.vue  | 310 ++++++++++--------
 .../components/groups/inviteModalOld.vue      | 152 +++++++++
 website/client/components/header/index.vue    |   4 +-
 .../components/settings/verifyUsername.vue    |   3 -
 website/client/store/actions/user.js          |  11 +
 website/common/locales/en/groups.json         |   6 +-
 website/server/controllers/api-v3/groups.js   |  12 +-
 website/server/controllers/api-v3/members.js  |  27 ++
 website/server/libs/invites/index.js          |  22 +-
 10 files changed, 385 insertions(+), 163 deletions(-)
 create mode 100644 website/client/components/groups/inviteModalOld.vue

diff --git a/website/client/assets/scss/modal.scss b/website/client/assets/scss/modal.scss
index 64d9820818..60c0274d13 100644
--- a/website/client/assets/scss/modal.scss
+++ b/website/client/assets/scss/modal.scss
@@ -16,6 +16,7 @@
 }
 
 .modal-dialog {
+  margin: 5.5rem auto 3rem;
   width: auto;
 
   .title {
diff --git a/website/client/components/groups/inviteModal.vue b/website/client/components/groups/inviteModal.vue
index 8d8869f00d..166b75dfaa 100644
--- a/website/client/components/groups/inviteModal.vue
+++ b/website/client/components/groups/inviteModal.vue
@@ -1,152 +1,178 @@
 <template lang="pug">
-b-modal#invite-modal(:title="$t('inviteFriends')", size='lg')
-  .modal-body
-    p.alert.alert-info(v-html="$t('inviteAlertInfo')")
-    .form-horizontal
-      table.table.table-striped
-        thead
-          tr
-            th {{ $t('userId') }}
-        tbody
-          tr(v-for='user in invitees')
-            td
-              input.form-control(type='text', v-model='user.uuid')
-            tr
-              td
-                button.btn.btn-primary.pull-right(@click='addUuid()')
-                  i.glyphicon.glyphicon-plus
-                  | +
-          tr
-            td
-              .col-6.col-offset-6
-                button.btn.btn-primary.btn-block(@click='inviteNewUsers("uuid")') {{sendInviteText}}
-    hr
-    p.alert.alert-info {{ $t('inviteByEmail') }}
-    .form-horizontal
-      table.table.table-striped
-        thead
-          tr
-            th {{ $t('name') }}
-            th {{ $t('email') }}
-        tbody
-          tr(v-for='email in emails')
-            td
-              input.form-control(type='text', v-model='email.name')
-            td
-              input.form-control(type='email', v-model='email.email')
-          tr
-            td(colspan=2)
-              button.btn.btn-primary.pull-right(@click='addEmail()')
-                i.glyphicon.glyphicon-plus
-                | +
-          tr
-            td.form-group(colspan=2)
-              label.col-sm-1.control-label {{ $t('byColon') }}
-              .col-sm-5
-                input.form-control(type='text', v-model='inviter')
-              .col-sm-6
-                button.btn.btn-primary.btn-block(@click='inviteNewUsers("email")') {{sendInviteText}}
+  b-modal#invite-modal(:title='$t(`inviteTo${groupType}`)', :hide-footer='true')
+    div
+      strong {{ $t('inviteEmailUsername') }}
+      .small {{ $t('inviteEmailUsernameInfo') }}
+      .input-group(v-for='(invite, index) in invites')
+        .d-flex.align-items-center.justify-content-center(v-if='index === invites.length - 1 && invite.text.length === 0')
+          .svg-icon.positive-icon(v-html='icons.positiveIcon')
+        input.form-control(
+          type='text',
+          :placeholder='$t("emailOrUsernameInvite")',
+          v-model='invite.text',
+          v-on:change='checkInviteList',
+          :class='{"input-valid": invite.valid, "is-invalid input-invalid": invite.valid === false}',
+        )
+    .modal-footer.d-flex.justify-content-center
+      a.mr-3(@click='close()') {{ $t('cancel') }}
+      button.btn.btn-primary(@click='sendInvites()', :class='{disabled: cannotSubmit}', :disabled='cannotSubmit') {{ $t('sendInvitations') }}
 </template>
 
+<style lang="scss">
+  #invite-modal___BV_modal_outer_ {
+    .modal-content {
+      padding: 0rem 0.25rem;
+    }
+  }
+  #invite-modal___BV_modal_header_.modal-header {
+    border-bottom: 0px;
+  }
+  #invite-modal___BV_modal_header_ {
+    .modal-title {
+      color: #4F2A93;
+      font-size: 24px;
+    }
+  }
+</style>
+
+<style lang="scss" scoped>
+  @import '~client/assets/scss/colors.scss';
+
+  a:not([href]) {
+    color: $blue-10;
+    font-size: 16px;
+  }
+
+  .form-control {
+    border: 0px;
+    color: $gray-50;
+  }
+
+  .input-group {
+    border-radius: 2px;
+    border: solid 1px $gray-400;
+    margin-top: 0.5rem;
+  }
+
+  ::placeholder {
+    color: $gray-200;
+    opacity: 1;
+  }
+
+  .input-group:focus-within {
+    border-color: $purple-500;
+  }
+
+  .modal-footer {
+    border: 0px;
+  }
+
+  .positive-icon {
+    color: $green-10;
+    width: 10px;
+    margin: auto 0rem auto 1rem;
+  }
+
+  .small {
+    color: $gray-200;
+    font-size: 12px;
+    margin: 0.5rem 0rem 1rem;
+  }
+
+</style>
+
 <script>
-import { mapState } from 'client/libs/store';
+  import { mapState } from 'client/libs/store';
+  import clone from 'lodash/clone';
+  import debounce from 'lodash/debounce';
+  import filter from 'lodash/filter';
+  import forEach from 'lodash/forEach';
+  import isEmail from 'validator/lib/isEmail';
+  import isUUID from 'validator/lib/isUUID';
+  import notifications from 'client/mixins/notifications';
+  import positiveIcon from 'assets/svg/positive.svg';
 
-import filter from 'lodash/filter';
-import map from 'lodash/map';
-import notifications from 'client/mixins/notifications';
+  const INVITE_DEFAULTS = {text: '', valid: null};
 
-export default {
-  mixins: [notifications],
-  props: ['group'],
-  data () {
-    return {
-      invitees: [],
-      emails: [],
-    };
-  },
-  computed: {
-    ...mapState({user: 'user.data'}),
-    inviter () {
-      return this.user.profile.name;
+  export default {
+    computed: {
+      ...mapState({user: 'user.data'}),
+      cannotSubmit () {
+        const filteredInvites = filter(this.invites, (invite) => {
+          return invite.text.length > 0 && !invite.valid;
+        });
+        if (filteredInvites.length > 0) return true;
+      },
+      inviter () {
+        return this.user.profile.name;
+      },
     },
-    sendInviteText () {
-      return 'Send Invites';
-      // if (!this.group) return 'Send Invites';
-      // return this.group.sendInviteText;
+    data () {
+      return {
+        invites: [clone(INVITE_DEFAULTS), clone(INVITE_DEFAULTS)],
+        icons: Object.freeze({
+          positiveIcon,
+        }),
+      };
     },
-  },
-  methods: {
-    addUuid () {
-      this.invitees.push({uuid: ''});
+    methods: {
+      checkInviteList: debounce(function checkList () {
+        this.invites = filter(this.invites, (invite) => {
+          return invite.text.length > 0;
+        });
+        if (this.invites[this.invites.length - 1].text.length > 0) this.invites.push(clone(INVITE_DEFAULTS));
+        forEach(this.invites, (value, index) => {
+          if (value.text.length < 1) return this.invites[index].valid = null;
+          if (isEmail(value.text)) return this.invites[index].valid = true;
+          if (isUUID(value.text)) {
+            this.$store.dispatch('user:userLookup', {uuid: value.text})
+              .then(res => {
+                if (res.status === 200) return this.invites[index].valid = true;
+                return this.invites[index].valid = false;
+              });
+          } else {
+            this.$store.dispatch('user:userLookup', {username: value.text})
+              .then(res => {
+                if (res.status === 200) return this.invites[index].valid = true;
+                return this.invites[index].valid = false;
+              });
+          }
+        });
+      }, 500),
+      close () {
+        this.invites = [clone(INVITE_DEFAULTS), clone(INVITE_DEFAULTS)];
+        this.$root.$emit('bv::hide::modal', 'invite-modal');
+      },
+      async sendInvites () {
+        let invitationDetails = {
+          inviter: this.inviter,
+          emails: [],
+          uuids: [],
+          usernames: [],
+        };
+        forEach(this.invites, (invite) => {
+          if (invite.text.length < 1) return;
+          if (isEmail(invite.text)) {
+            invitationDetails.emails.push({email: invite.text});
+          } else if (isUUID(invite.text)) {
+            invitationDetails.uuids.push(invite.text);
+          } else {
+            invitationDetails.usernames.push(invite.text);
+          }
+        });
+        await this.$store.dispatch('guilds:invite', {
+          invitationDetails,
+          groupId: this.group._id,
+        });
+
+        const invitesSent = invitationDetails.emails.length + invitationDetails.uuids.length + invitationDetails.usernames.length;
+        let invitationString = invitesSent > 1 ? 'invitationsSent' : 'invitationSent';
+
+        this.text(this.$t(invitationString));
+        this.close();
+      },
     },
-    addEmail () {
-      this.emails.push({name: '', email: ''});
-    },
-    inviteNewUsers (inviteMethod) {
-      if (!this.group._id) {
-        if (!this.group.name) this.group.name = this.$t('possessiveParty', {name: this.user.profile.name});
-
-        // @TODO: Add dispatch
-        // return Groups.Group.create(this.group)
-        //   .then(function(response) {
-        //     this.group = response.data.data;
-        //     _inviteByMethod(inviteMethod);
-        //   });
-      }
-
-      this.inviteByMethod(inviteMethod);
-    },
-    async inviteByMethod (inviteMethod) {
-      let invitationDetails;
-
-      if (inviteMethod === 'email') {
-        let emails = this.getEmails();
-        invitationDetails = { inviter: this.inviter, emails };
-      } else if (inviteMethod === 'uuid') {
-        let uuids = this.getOnlyUuids();
-        invitationDetails = { uuids };
-      } else {
-        return alert('Invalid invite method.');
-      }
-
-      await this.$store.dispatch('guilds:invite', {
-        invitationDetails,
-        groupId: this.group._id,
-      });
-
-      let invitesSent = invitationDetails.emails || invitationDetails.uuids;
-      let invitationString = invitesSent.length > 1 ? 'invitationsSent' : 'invitationSent';
-
-      this.text(this.$t(invitationString));
-
-      this.invitees = [];
-      this.emails = [];
-
-      // @TODO: This function didn't make it over this.resetInvitees();
-
-      // @TODO: Sync group invites?
-      // if (this.group.type === 'party') {
-      //   this.$router.push('//party');
-      // } else {
-      //   this.$router.push(`/groups/guilds/${this.group._id}`);
-      // }
-      this.$root.$emit('bv::hide::modal', 'invite-modal');
-      // @TODO: error?
-      // _resetInvitees();
-    },
-    getOnlyUuids () {
-      let uuids = map(this.invitees, 'uuid');
-      let filteredUuids = filter(uuids, (id) => {
-        return id !== '';
-      });
-      return filteredUuids;
-    },
-    getEmails () {
-      let emails = filter(this.emails, (obj) => {
-        return obj.email !== '';
-      });
-      return emails;
-    },
-  },
-};
+    mixins: [notifications],
+    props: ['group', 'groupType'],
+  };
 </script>
diff --git a/website/client/components/groups/inviteModalOld.vue b/website/client/components/groups/inviteModalOld.vue
new file mode 100644
index 0000000000..8d8869f00d
--- /dev/null
+++ b/website/client/components/groups/inviteModalOld.vue
@@ -0,0 +1,152 @@
+<template lang="pug">
+b-modal#invite-modal(:title="$t('inviteFriends')", size='lg')
+  .modal-body
+    p.alert.alert-info(v-html="$t('inviteAlertInfo')")
+    .form-horizontal
+      table.table.table-striped
+        thead
+          tr
+            th {{ $t('userId') }}
+        tbody
+          tr(v-for='user in invitees')
+            td
+              input.form-control(type='text', v-model='user.uuid')
+            tr
+              td
+                button.btn.btn-primary.pull-right(@click='addUuid()')
+                  i.glyphicon.glyphicon-plus
+                  | +
+          tr
+            td
+              .col-6.col-offset-6
+                button.btn.btn-primary.btn-block(@click='inviteNewUsers("uuid")') {{sendInviteText}}
+    hr
+    p.alert.alert-info {{ $t('inviteByEmail') }}
+    .form-horizontal
+      table.table.table-striped
+        thead
+          tr
+            th {{ $t('name') }}
+            th {{ $t('email') }}
+        tbody
+          tr(v-for='email in emails')
+            td
+              input.form-control(type='text', v-model='email.name')
+            td
+              input.form-control(type='email', v-model='email.email')
+          tr
+            td(colspan=2)
+              button.btn.btn-primary.pull-right(@click='addEmail()')
+                i.glyphicon.glyphicon-plus
+                | +
+          tr
+            td.form-group(colspan=2)
+              label.col-sm-1.control-label {{ $t('byColon') }}
+              .col-sm-5
+                input.form-control(type='text', v-model='inviter')
+              .col-sm-6
+                button.btn.btn-primary.btn-block(@click='inviteNewUsers("email")') {{sendInviteText}}
+</template>
+
+<script>
+import { mapState } from 'client/libs/store';
+
+import filter from 'lodash/filter';
+import map from 'lodash/map';
+import notifications from 'client/mixins/notifications';
+
+export default {
+  mixins: [notifications],
+  props: ['group'],
+  data () {
+    return {
+      invitees: [],
+      emails: [],
+    };
+  },
+  computed: {
+    ...mapState({user: 'user.data'}),
+    inviter () {
+      return this.user.profile.name;
+    },
+    sendInviteText () {
+      return 'Send Invites';
+      // if (!this.group) return 'Send Invites';
+      // return this.group.sendInviteText;
+    },
+  },
+  methods: {
+    addUuid () {
+      this.invitees.push({uuid: ''});
+    },
+    addEmail () {
+      this.emails.push({name: '', email: ''});
+    },
+    inviteNewUsers (inviteMethod) {
+      if (!this.group._id) {
+        if (!this.group.name) this.group.name = this.$t('possessiveParty', {name: this.user.profile.name});
+
+        // @TODO: Add dispatch
+        // return Groups.Group.create(this.group)
+        //   .then(function(response) {
+        //     this.group = response.data.data;
+        //     _inviteByMethod(inviteMethod);
+        //   });
+      }
+
+      this.inviteByMethod(inviteMethod);
+    },
+    async inviteByMethod (inviteMethod) {
+      let invitationDetails;
+
+      if (inviteMethod === 'email') {
+        let emails = this.getEmails();
+        invitationDetails = { inviter: this.inviter, emails };
+      } else if (inviteMethod === 'uuid') {
+        let uuids = this.getOnlyUuids();
+        invitationDetails = { uuids };
+      } else {
+        return alert('Invalid invite method.');
+      }
+
+      await this.$store.dispatch('guilds:invite', {
+        invitationDetails,
+        groupId: this.group._id,
+      });
+
+      let invitesSent = invitationDetails.emails || invitationDetails.uuids;
+      let invitationString = invitesSent.length > 1 ? 'invitationsSent' : 'invitationSent';
+
+      this.text(this.$t(invitationString));
+
+      this.invitees = [];
+      this.emails = [];
+
+      // @TODO: This function didn't make it over this.resetInvitees();
+
+      // @TODO: Sync group invites?
+      // if (this.group.type === 'party') {
+      //   this.$router.push('//party');
+      // } else {
+      //   this.$router.push(`/groups/guilds/${this.group._id}`);
+      // }
+      this.$root.$emit('bv::hide::modal', 'invite-modal');
+      // @TODO: error?
+      // _resetInvitees();
+    },
+    getOnlyUuids () {
+      let uuids = map(this.invitees, 'uuid');
+      let filteredUuids = filter(uuids, (id) => {
+        return id !== '';
+      });
+      return filteredUuids;
+    },
+    getEmails () {
+      let emails = filter(this.emails, (obj) => {
+        return obj.email !== '';
+      });
+      return emails;
+    },
+  },
+};
+</script>
diff --git a/website/client/components/header/index.vue b/website/client/components/header/index.vue
index dffdef7046..af6f3ad020 100644
--- a/website/client/components/header/index.vue
+++ b/website/client/components/header/index.vue
@@ -1,6 +1,6 @@
 <template lang="pug">
 div
-  invite-modal(:group='inviteModalGroup')
+  invite-modal(:group='inviteModalGroup', :groupType='inviteModalGroupType')
   create-party-modal
   #app-header.row(:class="{'hide-header': $route.name === 'groupPlan'}")
     members-modal(:hide-badge="true")
@@ -115,6 +115,7 @@ export default {
       expandedMember: null,
       currentWidth: 0,
       inviteModalGroup: undefined,
+      inviteModalGroupType: undefined,
     };
   },
   computed: {
@@ -178,6 +179,7 @@ export default {
   mounted () {
     this.$root.$on('inviteModal::inviteToGroup', (group) => {
       this.inviteModalGroup = group;
+      this.inviteModalGroupType = group.type === 'guild' ? 'Guild' : 'Party';
       this.$root.$emit('bv::show::modal', 'invite-modal');
     });
   },
diff --git a/website/client/components/settings/verifyUsername.vue b/website/client/components/settings/verifyUsername.vue
index f48d4836ae..b096c5f033 100644
--- a/website/client/components/settings/verifyUsername.vue
+++ b/website/client/components/settings/verifyUsername.vue
@@ -24,9 +24,6 @@
       padding-left: 2rem;
       padding-right: 2rem;
     }
-    .modal-dialog   {
-      transform: translate(0, 50vh) translate(-5%, -48%);
-    }
   }
 </style>
 
diff --git a/website/client/store/actions/user.js b/website/client/store/actions/user.js
index 9ae2ef3f3c..d15bd3e805 100644
--- a/website/client/store/actions/user.js
+++ b/website/client/store/actions/user.js
@@ -151,3 +151,14 @@ export async function togglePrivateMessagesOpt (store) {
   store.state.user.data.inbox.optOut = !store.state.user.data.inbox.optOut;
   return response;
 }
+
+export async function userLookup (store, params) {
+  let response;
+  if (params.uuid) {
+    response = await axios.get(`/api/v4/members/${params.uuid}`);
+  }
+  if (params.username) {
+    response = await axios.get(`/api/v4/members/username/${params.username}`);
+  }
+  return response;
+}
diff --git a/website/common/locales/en/groups.json b/website/common/locales/en/groups.json
index b8ed626485..e38e5543f9 100644
--- a/website/common/locales/en/groups.json
+++ b/website/common/locales/en/groups.json
@@ -185,7 +185,7 @@
   "inviteExistUser": "Invite Existing Users",
   "byColon": "By:",
   "inviteNewUsers": "Invite New Users",
-  "sendInvitations": "Send Invitations",
+  "sendInvitations": "Send Invites",
   "invitationsSent": "Invitations sent!",
   "invitationSent": "Invitation sent!",
   "invitedFriend": "Invited a Friend",
@@ -367,6 +367,10 @@
   "liked": "Liked",
   "joinGuild": "Join Guild",
   "inviteToGuild": "Invite to Guild",
+  "inviteToParty": "Invite to Party",
+  "inviteEmailUsername": "Invite via Email or Username",
+  "inviteEmailUsernameInfo": "Invite users via a valid email or username. If an email isn't registered yet, we'll invite them to join.",
+  "emailOrUsernameInvite": "Email address or username",
   "messageGuildLeader": "Message Guild Leader",
   "donateGems": "Donate Gems",
   "updateGuild": "Update Guild",
diff --git a/website/server/controllers/api-v3/groups.js b/website/server/controllers/api-v3/groups.js
index fcf437ce0d..e17362c0f6 100644
--- a/website/server/controllers/api-v3/groups.js
+++ b/website/server/controllers/api-v3/groups.js
@@ -17,9 +17,9 @@ import {
 import { removeFromArray } from '../../libs/collectionManipulators';
 import { sendTxn as sendTxnEmail } from '../../libs/email';
 import {
-  _inviteByUUID,
-  _inviteByEmail,
-  _inviteByUserName,
+  inviteByUUID,
+  inviteByEmail,
+  inviteByUserName,
 } from '../../libs/invites';
 import common from '../../../common';
 import payments from '../../libs/payments/payments';
@@ -1038,13 +1038,13 @@ api.inviteToGroup = {
     const results = [];
 
     if (uuids) {
-      const uuidInvites = uuids.map((uuid) => _inviteByUUID(uuid, group, user, req, res));
+      const uuidInvites = uuids.map((uuid) => inviteByUUID(uuid, group, user, req, res));
       const uuidResults = await Promise.all(uuidInvites);
       results.push(...uuidResults);
     }
 
     if (emails) {
-      const emailInvites = emails.map((invite) => _inviteByEmail(invite, group, user, req, res));
+      const emailInvites = emails.map((invite) => inviteByEmail(invite, group, user, req, res));
       user.invitesSent += emails.length;
       await user.save();
       const emailResults = await Promise.all(emailInvites);
@@ -1052,7 +1052,7 @@ api.inviteToGroup = {
     }
 
     if (usernames) {
-      const usernameInvites = usernames.map((username) => _inviteByUserName(username, group, user, req, res));
+      const usernameInvites = usernames.map((username) => inviteByUserName(username, group, user, req, res));
       const usernameResults = await Promise.all(usernameInvites);
       results.push(...usernameResults);
     }
diff --git a/website/server/controllers/api-v3/members.js b/website/server/controllers/api-v3/members.js
index 5a9759d48c..edb26b5571 100644
--- a/website/server/controllers/api-v3/members.js
+++ b/website/server/controllers/api-v3/members.js
@@ -119,6 +119,33 @@ api.getMember = {
   },
 };
 
+api.getMemberByUsername = {
+  method: 'GET',
+  url: '/members/username/:username',
+  middlewares: [],
+  async handler (req, res) {
+    req.checkParams('username', res.t('invalidReqParams')).notEmpty();
+
+    let validationErrors = req.validationErrors();
+    if (validationErrors) throw validationErrors;
+
+    let username = req.params.username.toLowerCase();
+
+    let member = await User
+      .findOne({'auth.local.lowerCaseUsername': username})
+      .select(memberFields)
+      .exec();
+
+    if (!member || !member.flags.verifiedUsername) throw new NotFound(res.t('userNotFound'));
+
+    // manually call toJSON with minimize: true so empty paths aren't returned
+    let memberToJSON = member.toJSON({minimize: true});
+    User.addComputedStatsToJSONObj(memberToJSON.stats, member);
+
+    res.respond(200, memberToJSON);
+  },
+};
+
 /**
  * @api {get} /api/v3/members/:memberId/achievements Get member achievements object
  * @apiName GetMemberAchievements
diff --git a/website/server/libs/invites/index.js b/website/server/libs/invites/index.js
index ef5a51b1f3..d5225338ef 100644
--- a/website/server/libs/invites/index.js
+++ b/website/server/libs/invites/index.js
@@ -100,7 +100,7 @@ async function inviteUserToParty (userToInvite, group, inviter, res) {
   userToInvite.invitations.party = partyInvite;
 }
 
-async function addInvitiationToUser (userToInvite, group, inviter, res) {
+async function addInvitationToUser (userToInvite, group, inviter, res) {
   const publicGuild = group.type === 'guild' && group.privacy === 'public';
 
   if (group.type === 'guild') {
@@ -123,7 +123,7 @@ async function addInvitiationToUser (userToInvite, group, inviter, res) {
   }
 }
 
-async function _inviteByUUID (uuid, group, inviter, req, res) {
+async function inviteByUUID (uuid, group, inviter, req, res) {
   const userToInvite = await User.findById(uuid).exec();
 
   if (!userToInvite) {
@@ -137,10 +137,10 @@ async function _inviteByUUID (uuid, group, inviter, req, res) {
     throw new NotAuthorized(res.t(objections[0], { userId: uuid, username: userToInvite.profile.name}));
   }
 
-  return await addInvitiationToUser(userToInvite, group, inviter, res);
+  return await addInvitationToUser(userToInvite, group, inviter, res);
 }
 
-async function _inviteByEmail (invite, group, inviter, req, res) {
+async function inviteByEmail (invite, group, inviter, req, res) {
   let userReturnInfo;
 
   if (!invite.email) throw new BadRequest(res.t('inviteMissingEmail'));
@@ -154,7 +154,7 @@ async function _inviteByEmail (invite, group, inviter, req, res) {
     .exec();
 
   if (userToContact) {
-    userReturnInfo = await _inviteByUUID(userToContact._id, group, inviter, req, res);
+    userReturnInfo = await inviteByUUID(userToContact._id, group, inviter, req, res);
   } else {
     userReturnInfo = invite.email;
 
@@ -188,7 +188,9 @@ async function _inviteByEmail (invite, group, inviter, req, res) {
   return userReturnInfo;
 }
 
-async function _inviteByUserName (username, group, inviter, req, res) {
+async function inviteByUserName (username, group, inviter, req, res) {
+  if (username.indexOf('@') === 0) username = username.slice(1, username.length);
+  username = username.toLowerCase();
   const userToInvite = await User.findOne({'auth.local.lowerCaseUsername': username}).exec();
 
   if (!userToInvite) {
@@ -199,11 +201,11 @@ async function _inviteByUserName (username, group, inviter, req, res) {
     throw new BadRequest(res.t('cannotInviteSelfToGroup'));
   }
 
-  return await addInvitiationToUser(userToInvite, group, inviter, res);
+  return await addInvitationToUser(userToInvite, group, inviter, res);
 }
 
 module.exports = {
-  _inviteByUUID,
-  _inviteByEmail,
-  _inviteByUserName,
+  inviteByUUID,
+  inviteByEmail,
+  inviteByUserName,
 };