Merge branch 'next' into develop

33 files changed, 303 insertions, 151 deletions

diff --git a/client/src/app/+about/about-instance/contact-admin-modal.component.ts b/client/src/app/+about/about-instance/contact-admin-modal.component.ts
index a528faa20..37e9feacb 100644
--- a/client/src/app/+about/about-instance/contact-admin-modal.component.ts
+++ b/client/src/app/+about/about-instance/contact-admin-modal.component.ts
@@ -11,8 +11,7 @@ import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
 import { InstanceService } from '@app/shared/shared-instance'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
 import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
-import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
-import { HTMLServerConfig } from '@shared/models'
+import { HTMLServerConfig, HttpStatusCode } from '@shared/models'
 
 type Prefill = {
   subject?: string
diff --git a/client/src/app/+accounts/accounts.component.ts b/client/src/app/+accounts/accounts.component.ts
index c69b04a01..5b59f3cd0 100644
--- a/client/src/app/+accounts/accounts.component.ts
+++ b/client/src/app/+accounts/accounts.component.ts
@@ -13,8 +13,7 @@ import {
   VideoService
 } from '@app/shared/shared-main'
 import { AccountReportComponent } from '@app/shared/shared-moderation'
-import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
-import { User, UserRight } from '@shared/models'
+import { HttpStatusCode, User, UserRight } from '@shared/models'
 import { AccountSearchComponent } from './account-search/account-search.component'
 
 @Component({
diff --git a/client/src/app/+admin/admin.component.ts b/client/src/app/+admin/admin.component.ts
index dd92ed2ca..4b6fab6ed 100644
--- a/client/src/app/+admin/admin.component.ts
+++ b/client/src/app/+admin/admin.component.ts
@@ -26,12 +26,12 @@ export class AdminComponent implements OnInit {
       label: $localize`Federation`,
       children: [
         {
-          label: $localize`Instances you follow`,
+          label: $localize`Following`,
           routerLink: '/admin/follows/following-list',
           iconName: 'following'
         },
         {
-          label: $localize`Instances following you`,
+          label: $localize`Followers`,
           routerLink: '/admin/follows/followers-list',
           iconName: 'follower'
         },
diff --git a/client/src/app/+admin/admin.module.ts b/client/src/app/+admin/admin.module.ts
index a7fe20b07..1ea7b9784 100644
--- a/client/src/app/+admin/admin.module.ts
+++ b/client/src/app/+admin/admin.module.ts
@@ -25,7 +25,7 @@ import {
   EditVODTranscodingComponent
 } from './config'
 import { ConfigService } from './config/shared/config.service'
-import { FollowersListComponent, FollowsComponent, VideoRedundanciesListComponent } from './follows'
+import { FollowersListComponent, FollowModalComponent, FollowsComponent, VideoRedundanciesListComponent } from './follows'
 import { FollowingListComponent } from './follows/following-list/following-list.component'
 import { RedundancyCheckboxComponent } from './follows/shared/redundancy-checkbox.component'
 import { VideoRedundancyInformationComponent } from './follows/video-redundancies-list/video-redundancy-information.component'
@@ -68,6 +68,7 @@ import { UserCreateComponent, UserListComponent, UserPasswordComponent, UsersCom
     FollowsComponent,
     FollowersListComponent,
     FollowingListComponent,
+    FollowModalComponent,
     RedundancyCheckboxComponent,
     VideoRedundanciesListComponent,
     VideoRedundancyInformationComponent,
diff --git a/client/src/app/+admin/follows/followers-list/followers-list.component.html b/client/src/app/+admin/follows/followers-list/followers-list.component.html
index c2e9a4df6..08459634d 100644
--- a/client/src/app/+admin/follows/followers-list/followers-list.component.html
+++ b/client/src/app/+admin/follows/followers-list/followers-list.component.html
@@ -1,6 +1,6 @@
 <h1>
   <my-global-icon iconName="follower" aria-hidden="true"></my-global-icon>
-  <ng-container i18n>Instances following you</ng-container>
+  <ng-container i18n>Followers of your instance</ng-container>
 </h1>
 
 <p-table
@@ -21,7 +21,7 @@
   <ng-template pTemplate="header">
     <tr>
       <th style="width: 150px;" i18n>Actions</th>
-      <th i18n>Follower handle</th>
+      <th i18n>Follower</th>
       <th style="width: 100px;" i18n pSortableColumn="state">State <p-sortIcon field="state"></p-sortIcon></th>
       <th style="width: 100px;" i18n pSortableColumn="score">Score <p-sortIcon field="score"></p-sortIcon></th>
       <th style="width: 150px;" i18n pSortableColumn="createdAt">Created <p-sortIcon field="createdAt"></p-sortIcon></th>
diff --git a/client/src/app/+admin/follows/following-list/follow-modal.component.html b/client/src/app/+admin/follows/following-list/follow-modal.component.html
new file mode 100644
index 000000000..d0761b718
--- /dev/null
+++ b/client/src/app/+admin/follows/following-list/follow-modal.component.html
@@ -0,0 +1,42 @@
+<ng-template #modal>
+  <div class="modal-header">
+    <h4 i18n class="modal-title">Follow</h4>
+
+    <my-global-icon iconName="cross" aria-label="Close" role="button" (click)="hide()"></my-global-icon>
+  </div>
+
+  <div class="modal-body">
+    <form novalidate [formGroup]="form" (ngSubmit)="submit()">
+      <div class="form-group">
+        <label i18n for="hostsOrHandles">1 host (without "http://"), account handle or channel handle per line</label>
+
+        <textarea
+          [placeholder]="placeholder" formControlName="hostsOrHandles" type="text" id="hostsOrHandles" name="hostsOrHandles"
+          class="form-control" [ngClass]="{ 'input-error': formErrors['hostsOrHandles'] }" ngbAutofocus
+        ></textarea>
+
+        <div *ngIf="formErrors.hostsOrHandles" class="form-error">
+          {{ formErrors.hostsOrHandles }}
+
+          <div *ngIf="form.controls['hostsOrHandles'].errors.validHostsOrHandles">
+            {{ form.controls['hostsOrHandles'].errors.validHostsOrHandles.value }}
+          </div>
+        </div>
+      </div>
+
+      <div i18n *ngIf="httpEnabled() === false"  class="alert alert-warning">
+        It seems that you are not on a HTTPS server. Your webserver needs to have TLS activated in order to follow servers.
+      </div>
+
+      <div class="form-group inputs">
+        <input
+          type="button" role="button" i18n-value value="Cancel" class="peertube-button grey-button"
+          (click)="hide()" (key.enter)="hide()"
+        >
+
+        <input type="submit" i18n-value value="Follow" class="peertube-button orange-button" [disabled]="!form.valid" />
+      </div>
+    </form>
+  </div>
+
+</ng-template>
diff --git a/client/src/app/+admin/follows/following-list/follow-modal.component.scss b/client/src/app/+admin/follows/following-list/follow-modal.component.scss
new file mode 100644
index 000000000..9621a566f
--- /dev/null
+++ b/client/src/app/+admin/follows/following-list/follow-modal.component.scss
@@ -0,0 +1,3 @@
+textarea {
+  height: 200px;
+}
diff --git a/client/src/app/+admin/follows/following-list/follow-modal.component.ts b/client/src/app/+admin/follows/following-list/follow-modal.component.ts
new file mode 100644
index 000000000..dc6909200
--- /dev/null
+++ b/client/src/app/+admin/follows/following-list/follow-modal.component.ts
@@ -0,0 +1,69 @@
+import { Component, EventEmitter, OnInit, Output, ViewChild } from '@angular/core'
+import { Notifier } from '@app/core'
+import { splitAndGetNotEmpty, UNIQUE_HOSTS_OR_HANDLE_VALIDATOR } from '@app/shared/form-validators/host-validators'
+import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
+import { InstanceFollowService } from '@app/shared/shared-instance'
+import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
+import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
+
+@Component({
+  selector: 'my-follow-modal',
+  templateUrl: './follow-modal.component.html',
+  styleUrls: [ './follow-modal.component.scss' ]
+})
+export class FollowModalComponent extends FormReactive implements OnInit {
+  @ViewChild('modal', { static: true }) modal: NgbModal
+
+  @Output() newFollow = new EventEmitter<void>()
+
+  placeholder = 'example.com\nchocobozzz@example.com\nchocobozzz_channel@example.com'
+
+  private openedModal: NgbModalRef
+
+  constructor (
+    protected formValidatorService: FormValidatorService,
+    private modalService: NgbModal,
+    private followService: InstanceFollowService,
+    private notifier: Notifier
+  ) {
+    super()
+  }
+
+  ngOnInit () {
+    this.buildForm({
+      hostsOrHandles: UNIQUE_HOSTS_OR_HANDLE_VALIDATOR
+    })
+  }
+
+  openModal () {
+    this.openedModal = this.modalService.open(this.modal, { centered: true })
+  }
+
+  hide () {
+    this.openedModal.close()
+  }
+
+  submit () {
+    this.addFollowing()
+
+    this.form.reset()
+    this.hide()
+  }
+
+  httpEnabled () {
+    return window.location.protocol === 'https:'
+  }
+
+  private async addFollowing () {
+    const hostsOrHandles = splitAndGetNotEmpty(this.form.value['hostsOrHandles'])
+
+    this.followService.follow(hostsOrHandles).subscribe(
+      () => {
+        this.notifier.success($localize`Follow request(s) sent!`)
+        this.newFollow.emit()
+      },
+
+      err => this.notifier.error(err.message)
+    )
+  }
+}
diff --git a/client/src/app/+admin/follows/following-list/following-list.component.html b/client/src/app/+admin/follows/following-list/following-list.component.html
index e7c0c9088..75b0efca8 100644
--- a/client/src/app/+admin/follows/following-list/following-list.component.html
+++ b/client/src/app/+admin/follows/following-list/following-list.component.html
@@ -1,6 +1,6 @@
 <h1>
   <my-global-icon iconName="following" aria-hidden="true"></my-global-icon>
-  <ng-container i18n>Instances you follow</ng-container>
+  <ng-container i18n>Your instance subscriptions</ng-container>
 </h1>
 
 <p-table
@@ -13,9 +13,9 @@
   <ng-template pTemplate="caption">
     <div class="caption">
       <div class="left-buttons">
-        <a class="follow-button" (click)="addDomainsToFollow()" (key.enter)="addDomainsToFollow()">
+        <a class="follow-button" (click)="openFollowModal()" (key.enter)="openFollowModal()">
           <my-global-icon iconName="following" aria-hidden="true"></my-global-icon>
-          <ng-container i18n>Follow instances</ng-container>
+          <ng-container i18n>Follow</ng-container>
         </a>
       </div>
 
@@ -28,7 +28,7 @@
   <ng-template pTemplate="header">
     <tr>
       <th style="width: 150px;" i18n>Action</th>
-      <th i18n>Host</th>
+      <th i18n>Following</th>
       <th style="width: 100px;" i18n pSortableColumn="state">State <p-sortIcon field="state"></p-sortIcon></th>
       <th style="width: 150px;" i18n pSortableColumn="createdAt">Created <p-sortIcon field="createdAt"></p-sortIcon></th>
       <th style="width: 160px;" i18n pSortableColumn="redundancyAllowed">Redundancy allowed <p-sortIcon field="redundancyAllowed"></p-sortIcon></th>
@@ -41,8 +41,8 @@
         <my-delete-button label="Unfollow" i18n-label (click)="removeFollowing(follow)"></my-delete-button>
       </td>
       <td>
-        <a [href]="'https://' + follow.following.host" i18n-title title="Open instance in a new tab" target="_blank" rel="noopener noreferrer">
-          {{ follow.following.host }}
+        <a [href]="follow.following.url" i18n-title title="Open instance in a new tab" target="_blank" rel="noopener noreferrer">
+          {{ follow.following.name + '@' + follow.following.host }}
           <span class="glyphicon glyphicon-new-window"></span>
         </a>
       </td>
@@ -57,6 +57,7 @@
       <td>{{ follow.createdAt | date: 'short' }}</td>
       <td>
         <my-redundancy-checkbox
+          *ngIf="isInstanceFollowing(follow)"
           [host]="follow.following.host" [redundancyAllowed]="follow.following.hostRedundancyAllowed"
         ></my-redundancy-checkbox>
       </td>
@@ -75,10 +76,4 @@
   </ng-template>
 </p-table>
 
-<my-batch-domains-modal #batchDomainsModal i18n-action action="Follow domains" (domains)="addFollowing($event)">
-  <ng-container ngProjectAs="warning">
-    <div i18n *ngIf="httpEnabled() === false"  class="alert alert-warning">
-      It seems that you are not on a HTTPS server. Your webserver needs to have TLS activated in order to follow servers.
-    </div>
-  </ng-container>
-</my-batch-domains-modal>
+<my-follow-modal #followModal></my-follow-modal>
diff --git a/client/src/app/+admin/follows/following-list/following-list.component.ts b/client/src/app/+admin/follows/following-list/following-list.component.ts
index b63fe08c0..ba62dfa23 100644
--- a/client/src/app/+admin/follows/following-list/following-list.component.ts
+++ b/client/src/app/+admin/follows/following-list/following-list.component.ts
@@ -4,13 +4,14 @@ import { ConfirmService, Notifier, RestPagination, RestTable } from '@app/core'
 import { InstanceFollowService } from '@app/shared/shared-instance'
 import { BatchDomainsModalComponent } from '@app/shared/shared-moderation'
 import { ActorFollow } from '@shared/models'
+import { FollowModalComponent } from './follow-modal.component'
 
 @Component({
   templateUrl: './following-list.component.html',
   styleUrls: [ '../follows.component.scss', './following-list.component.scss' ]
 })
 export class FollowingListComponent extends RestTable implements OnInit {
-  @ViewChild('batchDomainsModal') batchDomainsModal: BatchDomainsModalComponent
+  @ViewChild('followModal') followModal: FollowModalComponent
 
   following: ActorFollow[] = []
   totalRecords = 0
@@ -33,23 +34,12 @@ export class FollowingListComponent extends RestTable implements OnInit {
     return 'FollowingListComponent'
   }
 
-  addDomainsToFollow () {
-    this.batchDomainsModal.openModal()
+  openFollowModal () {
+    this.followModal.openModal()
   }
 
-  httpEnabled () {
-    return window.location.protocol === 'https:'
-  }
-
-  async addFollowing (hosts: string[]) {
-    this.followService.follow(hosts).subscribe(
-      () => {
-        this.notifier.success($localize`Follow request(s) sent!`)
-        this.reloadData()
-      },
-
-      err => this.notifier.error(err.message)
-    )
+  isInstanceFollowing (follow: ActorFollow) {
+    return follow.following.name === 'peertube'
   }
 
   async removeFollowing (follow: ActorFollow) {
diff --git a/client/src/app/+admin/follows/following-list/index.ts b/client/src/app/+admin/follows/following-list/index.ts
index a70d46a7e..88be0ed4c 100644
--- a/client/src/app/+admin/follows/following-list/index.ts
+++ b/client/src/app/+admin/follows/following-list/index.ts
@@ -1 +1,2 @@
+export * from './follow-modal.component'
 export * from './following-list.component'
diff --git a/client/src/app/+admin/follows/follows.routes.ts b/client/src/app/+admin/follows/follows.routes.ts
index cd70daf77..3843b42b5 100644
--- a/client/src/app/+admin/follows/follows.routes.ts
+++ b/client/src/app/+admin/follows/follows.routes.ts
@@ -25,7 +25,7 @@ export const FollowsRoutes: Routes = [
         component: FollowingListComponent,
         data: {
           meta: {
-            title: $localize`Following list`
+            title: $localize`Following`
           }
         }
       },
@@ -34,7 +34,7 @@ export const FollowsRoutes: Routes = [
         component: FollowersListComponent,
         data: {
           meta: {
-            title: $localize`Followers list`
+            title: $localize`Followers`
           }
         }
       },
diff --git a/client/src/app/+login/login.component.html b/client/src/app/+login/login.component.html
index 5f5b0f565..27793ff0c 100644
--- a/client/src/app/+login/login.component.html
+++ b/client/src/app/+login/login.component.html
@@ -28,6 +28,10 @@
             <div *ngIf="formErrors.username" class="form-error">
               {{ formErrors.username }}
             </div>
+
+            <div *ngIf="hasUsernameUppercase()" i18n class="form-warning">
+              ⚠️ Most email addresses do not include capital letters.
+            </div>
           </div>
 
           <div class="form-group">
diff --git a/client/src/app/+login/login.component.ts b/client/src/app/+login/login.component.ts
index d8ad49081..9731383af 100644
--- a/client/src/app/+login/login.component.ts
+++ b/client/src/app/+login/login.component.ts
@@ -141,6 +141,10 @@ The link will expire within 1 hour.`
     this.accordion = instanceAboutAccordion.accordion
   }
 
+  hasUsernameUppercase () {
+    return this.form.value['username'].match(/[A-Z]/)
+  }
+
   private loadExternalAuthToken (username: string, token: string) {
     this.isAuthenticatedWithExternalAuth = true
 
diff --git a/client/src/app/+my-library/+my-video-channels/my-video-channel-create.component.ts b/client/src/app/+my-library/+my-video-channels/my-video-channel-create.component.ts
index b3265210f..433475f66 100644
--- a/client/src/app/+my-library/+my-video-channels/my-video-channel-create.component.ts
+++ b/client/src/app/+my-library/+my-video-channels/my-video-channel-create.component.ts
@@ -1,3 +1,5 @@
+import { of } from 'rxjs'
+import { switchMap } from 'rxjs/operators'
 import { Component, OnInit } from '@angular/core'
 import { Router } from '@angular/router'
 import { AuthService, Notifier } from '@app/core'
@@ -9,11 +11,8 @@ import {
 } from '@app/shared/form-validators/video-channel-validators'
 import { FormValidatorService } from '@app/shared/shared-forms'
 import { VideoChannel, VideoChannelService } from '@app/shared/shared-main'
-import { VideoChannelCreate } from '@shared/models'
-import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
+import { HttpStatusCode, VideoChannelCreate } from '@shared/models'
 import { MyVideoChannelEdit } from './my-video-channel-edit'
-import { switchMap } from 'rxjs/operators'
-import { of } from 'rxjs'
 
 @Component({
   templateUrl: './my-video-channel-edit.component.html',
diff --git a/client/src/app/+my-library/+my-video-channels/my-video-channels.component.ts b/client/src/app/+my-library/+my-video-channels/my-video-channels.component.ts
index 67b3ee496..b6a2f592d 100644
--- a/client/src/app/+my-library/+my-video-channels/my-video-channels.component.ts
+++ b/client/src/app/+my-library/+my-video-channels/my-video-channels.component.ts
@@ -45,9 +45,9 @@ export class MyVideoChannelsComponent {
 It will delete ${videoChannel.videosCount} videos uploaded in this channel, and you will not be able to create another
 channel with the same name (${videoChannel.name})!`,
 
-      $localize`Please type the display name of the video channel (${videoChannel.displayName}) to confirm`,
+      $localize`Please type the name of the video channel (${videoChannel.name}) to confirm`,
 
-      videoChannel.displayName,
+      videoChannel.name,
 
       $localize`Delete`
     )
diff --git a/client/src/app/+page-not-found/page-not-found.component.ts b/client/src/app/+page-not-found/page-not-found.component.ts
index 639e5db78..10645a634 100644
--- a/client/src/app/+page-not-found/page-not-found.component.ts
+++ b/client/src/app/+page-not-found/page-not-found.component.ts
@@ -1,7 +1,8 @@
 import { Component, OnInit } from '@angular/core'
 import { Title } from '@angular/platform-browser'
 import { Router } from '@angular/router'
-import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
+import { HttpStatusCode } from '@shared/models'
+
 @Component({
   selector: 'my-page-not-found',
   templateUrl: './page-not-found.component.html',
diff --git a/client/src/app/+video-channels/video-channels.component.ts b/client/src/app/+video-channels/video-channels.component.ts
index 3833d9c54..6479644f1 100644
--- a/client/src/app/+video-channels/video-channels.component.ts
+++ b/client/src/app/+video-channels/video-channels.component.ts
@@ -7,7 +7,7 @@ import { AuthService, MarkdownService, Notifier, RestExtractor, ScreenService }
 import { ListOverflowItem, VideoChannel, VideoChannelService, VideoService } from '@app/shared/shared-main'
 import { SupportModalComponent } from '@app/shared/shared-support-modal'
 import { SubscribeButtonComponent } from '@app/shared/shared-user-subscription'
-import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
+import { HttpStatusCode } from '@shared/models'
 
 @Component({
   templateUrl: './video-channels.component.html',
diff --git a/client/src/app/+videos/+video-edit/video-add-components/video-upload.component.ts b/client/src/app/+videos/+video-edit/video-add-components/video-upload.component.ts
index 627de33c0..e9420fe62 100644
--- a/client/src/app/+videos/+video-edit/video-add-components/video-upload.component.ts
+++ b/client/src/app/+videos/+video-edit/video-add-components/video-upload.component.ts
@@ -7,8 +7,7 @@ import { genericUploadErrorHandler, scrollToTop } from '@app/helpers'
 import { FormValidatorService } from '@app/shared/shared-forms'
 import { BytesPipe, Video, VideoCaptionService, VideoEdit, VideoService } from '@app/shared/shared-main'
 import { LoadingBarService } from '@ngx-loading-bar/core'
-import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
-import { VideoPrivacy } from '@shared/models'
+import { HttpStatusCode, VideoPrivacy } from '@shared/models'
 import { UploaderXFormData } from './uploaderx-form-data'
 import { VideoSend } from './video-send'
 
diff --git a/client/src/app/+videos/+video-watch/video-watch.component.ts b/client/src/app/+videos/+video-watch/video-watch.component.ts
index d078844c3..7460ae3fc 100644
--- a/client/src/app/+videos/+video-watch/video-watch.component.ts
+++ b/client/src/app/+videos/+video-watch/video-watch.component.ts
@@ -21,8 +21,15 @@ import { isXPercentInViewport, scrollToTop } from '@app/helpers'
 import { Video, VideoCaptionService, VideoDetails, VideoService } from '@app/shared/shared-main'
 import { SubscribeButtonComponent } from '@app/shared/shared-user-subscription'
 import { VideoPlaylist, VideoPlaylistService } from '@app/shared/shared-video-playlist'
-import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
-import { HTMLServerConfig, PeerTubeProblemDocument, ServerErrorCode, VideoCaption, VideoPrivacy, VideoState } from '@shared/models'
+import {
+  HTMLServerConfig,
+  HttpStatusCode,
+  PeerTubeProblemDocument,
+  ServerErrorCode,
+  VideoCaption,
+  VideoPrivacy,
+  VideoState
+} from '@shared/models'
 import { cleanupVideoWatch, getStoredTheater, getStoredVideoWatchHistory } from '../../../assets/player/peertube-player-local-storage'
 import {
   CustomizationOptions,
diff --git a/client/src/app/core/auth/auth.service.ts b/client/src/app/core/auth/auth.service.ts
index cdf13186b..60bd72c60 100644
--- a/client/src/app/core/auth/auth.service.ts
+++ b/client/src/app/core/auth/auth.service.ts
@@ -6,12 +6,11 @@ import { Injectable } from '@angular/core'
 import { Router } from '@angular/router'
 import { Notifier } from '@app/core/notification/notifier.service'
 import { objectToUrlEncoded, peertubeLocalStorage } from '@root-helpers/index'
-import { MyUser as UserServerModel, OAuthClientLocal, User, UserLogin, UserRefreshToken } from '@shared/models'
+import { HttpStatusCode, MyUser as UserServerModel, OAuthClientLocal, User, UserLogin, UserRefreshToken } from '@shared/models'
 import { environment } from '../../../environments/environment'
 import { RestExtractor } from '../rest/rest-extractor.service'
 import { AuthStatus } from './auth-status.model'
 import { AuthUser } from './auth-user.model'
-import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
 
 interface UserLoginWithUsername extends UserLogin {
   access_token: string
diff --git a/client/src/app/core/rest/rest-extractor.service.ts b/client/src/app/core/rest/rest-extractor.service.ts
index 08ab49512..2a926e68f 100644
--- a/client/src/app/core/rest/rest-extractor.service.ts
+++ b/client/src/app/core/rest/rest-extractor.service.ts
@@ -2,8 +2,7 @@ import { throwError as observableThrowError } from 'rxjs'
 import { Injectable } from '@angular/core'
 import { Router } from '@angular/router'
 import { dateToHuman } from '@app/helpers'
-import { ResultList } from '@shared/models'
-import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
+import { HttpStatusCode, ResultList } from '@shared/models'
 
 @Injectable()
 export class RestExtractor {
diff --git a/client/src/app/helpers/utils.ts b/client/src/app/helpers/utils.ts
index 94f6def26..edcaf50e0 100644
--- a/client/src/app/helpers/utils.ts
+++ b/client/src/app/helpers/utils.ts
@@ -3,7 +3,7 @@ import { SelectChannelItem } from 'src/types/select-options-item.model'
 import { DatePipe } from '@angular/common'
 import { HttpErrorResponse } from '@angular/common/http'
 import { Notifier } from '@app/core'
-import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
+import { HttpStatusCode } from '@shared/models'
 import { environment } from '../../environments/environment'
 import { AuthService } from '../core/auth'
 
diff --git a/client/src/app/shared/form-validators/batch-domains-validators.ts b/client/src/app/shared/form-validators/batch-domains-validators.ts
deleted file mode 100644
index 423d1337f..000000000
--- a/client/src/app/shared/form-validators/batch-domains-validators.ts
+++ /dev/null
@@ -1,60 +0,0 @@
-import { AbstractControl, FormControl, ValidatorFn, Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.model'
-import { validateHost } from './host'
-
-export function getNotEmptyHosts (hosts: string) {
-  return hosts
-    .split('\n')
-    .filter((host: string) => host && host.length !== 0) // Eject empty hosts
-}
-
-const validDomains: ValidatorFn = (control: FormControl) => {
-  if (!control.value) return null
-
-  const newHostsErrors = []
-  const hosts = getNotEmptyHosts(control.value)
-
-  for (const host of hosts) {
-    if (validateHost(host) === false) {
-      newHostsErrors.push($localize`${host} is not valid`)
-    }
-  }
-
-  /* Is not valid. */
-  if (newHostsErrors.length !== 0) {
-    return {
-      'validDomains': {
-        reason: 'invalid',
-        value: newHostsErrors.join('. ') + '.'
-      }
-    }
-  }
-
-  /* Is valid. */
-  return null
-}
-
-const isHostsUnique: ValidatorFn = (control: AbstractControl) => {
-  if (!control.value) return null
-
-  const hosts = getNotEmptyHosts(control.value)
-
-  if (hosts.every((host: string) => hosts.indexOf(host) === hosts.lastIndexOf(host))) {
-    return null
-  } else {
-    return {
-      'uniqueDomains': {
-        reason: 'invalid'
-      }
-    }
-  }
-}
-
-export const DOMAINS_VALIDATOR: BuildFormValidator = {
-  VALIDATORS: [Validators.required, validDomains, isHostsUnique],
-  MESSAGES: {
-    'required': $localize`Domain is required.`,
-    'validDomains': $localize`Domains entered are invalid.`,
-    'uniqueDomains': $localize`Domains entered contain duplicates.`
-  }
-}
diff --git a/client/src/app/shared/form-validators/host-validators.ts b/client/src/app/shared/form-validators/host-validators.ts
new file mode 100644
index 000000000..d750113ef
--- /dev/null
+++ b/client/src/app/shared/form-validators/host-validators.ts
@@ -0,0 +1,105 @@
+import { AbstractControl, ValidatorFn, Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+function validateHost (value: string) {
+  // Thanks to http://stackoverflow.com/a/106223
+  const HOST_REGEXP = new RegExp(
+    '^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$'
+  )
+
+  return HOST_REGEXP.test(value)
+}
+
+function validateHandle (value: string) {
+  if (!value) return false
+
+  return value.includes('@')
+}
+
+const validHosts: ValidatorFn = (control: AbstractControl) => {
+  if (!control.value) return null
+
+  const errors = []
+  const hosts = splitAndGetNotEmpty(control.value)
+
+  for (const host of hosts) {
+    if (validateHost(host) === false) {
+      errors.push($localize`${host} is not valid`)
+    }
+  }
+
+  // valid
+  if (errors.length === 0) return null
+
+  return {
+    'validHosts': {
+      reason: 'invalid',
+      value: errors.join('. ') + '.'
+    }
+  }
+}
+
+const validHostsOrHandles: ValidatorFn = (control: AbstractControl) => {
+  if (!control.value) return null
+
+  const errors = []
+  const lines = splitAndGetNotEmpty(control.value)
+
+  for (const line of lines) {
+    if (validateHost(line) === false && validateHandle(line) === false) {
+      errors.push($localize`${line} is not valid`)
+    }
+  }
+
+  // valid
+  if (errors.length === 0) return null
+
+  return {
+    'validHostsOrHandles': {
+      reason: 'invalid',
+      value: errors.join('. ') + '.'
+    }
+  }
+}
+
+// ---------------------------------------------------------------------------
+
+export function splitAndGetNotEmpty (value: string) {
+  return value
+    .split('\n')
+    .filter(line => line && line.length !== 0) // Eject empty hosts
+}
+
+export const unique: ValidatorFn = (control: AbstractControl) => {
+  if (!control.value) return null
+
+  const hosts = splitAndGetNotEmpty(control.value)
+
+  if (hosts.every((host: string) => hosts.indexOf(host) === hosts.lastIndexOf(host))) {
+    return null
+  }
+
+  return {
+    'unique': {
+      reason: 'invalid'
+    }
+  }
+}
+
+export const UNIQUE_HOSTS_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required, validHosts, unique ],
+  MESSAGES: {
+    'required': $localize`Domain is required.`,
+    'validHosts': $localize`Hosts entered are invalid.`,
+    'unique': $localize`Hosts entered contain duplicates.`
+  }
+}
+
+export const UNIQUE_HOSTS_OR_HANDLE_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required, validHostsOrHandles, unique ],
+  MESSAGES: {
+    'required': $localize`Domain is required.`,
+    'validHostsOrHandles': $localize`Hosts or handles are invalid.`,
+    'unique': $localize`Hosts or handles contain duplicates.`
+  }
+}
diff --git a/client/src/app/shared/form-validators/host.ts b/client/src/app/shared/form-validators/host.ts
deleted file mode 100644
index c18a35f9b..000000000
--- a/client/src/app/shared/form-validators/host.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-export function validateHost (value: string) {
-  // Thanks to http://stackoverflow.com/a/106223
-  const HOST_REGEXP = new RegExp(
-    '^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$'
-  )
-
-  return HOST_REGEXP.test(value)
-}
diff --git a/client/src/app/shared/form-validators/index.ts b/client/src/app/shared/form-validators/index.ts
index f621f03a4..0b605719c 100644
--- a/client/src/app/shared/form-validators/index.ts
+++ b/client/src/app/shared/form-validators/index.ts
@@ -1,7 +1,6 @@
 export * from './form-validator.model'
-export * from './host'
 
-// Don't re export const variables because webpack 4 cannot do tree shaking with them
+// Don't re export const variables because webpack cannot do tree shaking with them
 // export * from './abuse-validators'
 // export * from './batch-domains-validators'
 // export * from './custom-config-validators'
diff --git a/client/src/app/shared/shared-instance/instance-follow.service.ts b/client/src/app/shared/shared-instance/instance-follow.service.ts
index e52660140..af44020cf 100644
--- a/client/src/app/shared/shared-instance/instance-follow.service.ts
+++ b/client/src/app/shared/shared-instance/instance-follow.service.ts
@@ -4,7 +4,7 @@ import { catchError, map } from 'rxjs/operators'
 import { HttpClient, HttpParams } from '@angular/common/http'
 import { Injectable } from '@angular/core'
 import { RestExtractor, RestPagination, RestService } from '@app/core'
-import { ActivityPubActorType, ActorFollow, FollowState, ResultList } from '@shared/models'
+import { ActivityPubActorType, ActorFollow, FollowState, ResultList, ServerFollowCreate } from '@shared/models'
 import { environment } from '../../../environments/environment'
 
 @Injectable()
@@ -64,9 +64,10 @@ export class InstanceFollowService {
                )
   }
 
-  follow (notEmptyHosts: string[]) {
-    const body = {
-      hosts: notEmptyHosts
+  follow (hostsOrHandles: string[]) {
+    const body: ServerFollowCreate = {
+      handles: hostsOrHandles.filter(v => v.includes('@')),
+      hosts: hostsOrHandles.filter(v => !v.includes('@'))
     }
 
     return this.authHttp.post(InstanceFollowService.BASE_APPLICATION_URL + '/following', body)
@@ -77,7 +78,9 @@ export class InstanceFollowService {
   }
 
   unfollow (follow: ActorFollow) {
-    return this.authHttp.delete(InstanceFollowService.BASE_APPLICATION_URL + '/following/' + follow.following.host)
+    const handle = follow.following.name + '@' + follow.following.host
+
+    return this.authHttp.delete(InstanceFollowService.BASE_APPLICATION_URL + '/following/' + handle)
                .pipe(
                  map(this.restExtractor.extractDataBool),
                  catchError(res => this.restExtractor.handleError(res))
diff --git a/client/src/app/shared/shared-main/auth/auth-interceptor.service.ts b/client/src/app/shared/shared-main/auth/auth-interceptor.service.ts
index 5bcad36d0..a75c8a25c 100644
--- a/client/src/app/shared/shared-main/auth/auth-interceptor.service.ts
+++ b/client/src/app/shared/shared-main/auth/auth-interceptor.service.ts
@@ -1,11 +1,11 @@
 import { Observable, of, throwError as observableThrowError } from 'rxjs'
 import { catchError, switchMap } from 'rxjs/operators'
-import { HTTP_INTERCEPTORS, HttpEvent, HttpHandler, HttpInterceptor, HttpRequest, HttpErrorResponse } from '@angular/common/http'
+import { HTTP_INTERCEPTORS, HttpErrorResponse, HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http'
 import { Injectable, Injector } from '@angular/core'
-import { AuthService } from '@app/core/auth/auth.service'
 import { Router } from '@angular/router'
-import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
-import { OAuth2ErrorCode, PeerTubeProblemDocument, ServerErrorCode } from '@shared/models/server'
+import { AuthService } from '@app/core/auth/auth.service'
+import { HttpStatusCode } from '@shared/models'
+import { OAuth2ErrorCode, PeerTubeProblemDocument } from '@shared/models/server'
 
 @Injectable()
 export class AuthInterceptor implements HttpInterceptor {
diff --git a/client/src/app/shared/shared-moderation/batch-domains-modal.component.html b/client/src/app/shared/shared-moderation/batch-domains-modal.component.html
index 6a3c65721..8306a96bc 100644
--- a/client/src/app/shared/shared-moderation/batch-domains-modal.component.html
+++ b/client/src/app/shared/shared-moderation/batch-domains-modal.component.html
@@ -1,6 +1,6 @@
 <ng-template #modal>
   <div class="modal-header">
-    <h4 i18n class="modal-title">{{ action }}</h4>
+    <h4 class="modal-title">{{ action }}</h4>
 
     <my-global-icon iconName="cross" aria-label="Close" role="button" (click)="hide()"></my-global-icon>
   </div>
@@ -11,15 +11,15 @@
         <label i18n for="hosts">1 host (without "http://") per line</label>
 
         <textarea
-          [placeholder]="placeholder" formControlName="domains" type="text" id="hosts" name="hosts"
-          class="form-control" [ngClass]="{ 'input-error': formErrors['domains'] }" ngbAutofocus
+          [placeholder]="placeholder" formControlName="hosts" type="text" id="hosts" name="hosts"
+          class="form-control" [ngClass]="{ 'input-error': formErrors['hosts'] }" ngbAutofocus
         ></textarea>
 
-        <div *ngIf="formErrors.domains" class="form-error">
-          {{ formErrors.domains }}
+        <div *ngIf="formErrors.hosts" class="form-error">
+          {{ formErrors.hosts }}
 
-          <div *ngIf="form.controls['domains'].errors.validDomains">
-            {{ form.controls['domains'].errors.validDomains.value }}
+          <div *ngIf="form.controls['hosts'].errors.validHosts">
+            {{ form.controls['hosts'].errors.validHosts.value }}
           </div>
         </div>
       </div>
diff --git a/client/src/app/shared/shared-moderation/batch-domains-modal.component.ts b/client/src/app/shared/shared-moderation/batch-domains-modal.component.ts
index 6edbb6023..20be728f6 100644
--- a/client/src/app/shared/shared-moderation/batch-domains-modal.component.ts
+++ b/client/src/app/shared/shared-moderation/batch-domains-modal.component.ts
@@ -2,7 +2,7 @@ import { Component, EventEmitter, Input, OnInit, Output, ViewChild } from '@angu
 import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
 import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
-import { DOMAINS_VALIDATOR, getNotEmptyHosts } from '../form-validators/batch-domains-validators'
+import { splitAndGetNotEmpty, UNIQUE_HOSTS_VALIDATOR } from '../form-validators/host-validators'
 
 @Component({
   selector: 'my-batch-domains-modal',
@@ -28,7 +28,7 @@ export class BatchDomainsModalComponent extends FormReactive implements OnInit {
     if (!this.action) this.action = $localize`Process domains`
 
     this.buildForm({
-      domains: DOMAINS_VALIDATOR
+      hosts: UNIQUE_HOSTS_VALIDATOR
     })
   }
 
@@ -41,9 +41,7 @@ export class BatchDomainsModalComponent extends FormReactive implements OnInit {
   }
 
   submit () {
-    this.domains.emit(
-      getNotEmptyHosts(this.form.controls['domains'].value)
-    )
+    this.domains.emit(splitAndGetNotEmpty(this.form.controls['hosts'].value))
     this.form.reset()
     this.hide()
   }
diff --git a/client/src/sass/application.scss b/client/src/sass/application.scss
index 30d487b11..bd834db70 100644
--- a/client/src/sass/application.scss
+++ b/client/src/sass/application.scss
@@ -123,12 +123,16 @@ code {
   vertical-align: middle;
 }
 
-.form-error {
+.form-error,
+.form-warning {
   display: block;
-  color: $red;
   margin-top: 5px;
 }
 
+.form-error {
+  color: $red;
+}
+
 .input-error,
 my-input-toggle-hidden ::ng-deep input {
   border-color: $red !important;
diff --git a/client/src/standalone/videos/embed.ts b/client/src/standalone/videos/embed.ts
index e59d8b940..97437ce45 100644
--- a/client/src/standalone/videos/embed.ts
+++ b/client/src/standalone/videos/embed.ts
@@ -1,9 +1,9 @@
 import './embed.scss'
 import videojs from 'video.js'
 import { peertubeTranslate } from '../../../../shared/core-utils/i18n'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
   HTMLServerConfig,
+  HttpStatusCode,
   OAuth2ErrorCode,
   ResultList,
   UserRefreshToken,