23 files changed, 489 insertions, 65 deletions

diff --git a/client/src/app/+admin/admin.component.html b/client/src/app/+admin/admin.component.html
index 9a3d90c18..0d06aaedc 100644
--- a/client/src/app/+admin/admin.component.html
+++ b/client/src/app/+admin/admin.component.html
@@ -5,7 +5,7 @@
     </a>
 
     <a i18n *ngIf="hasServerFollowRight()" routerLink="/admin/follows" routerLinkActive="active" class="title-page">
-      Manage follows
+      Follows & redundancies
     </a>
 
     <a i18n *ngIf="hasVideoAbusesRight() || hasVideoBlacklistRight()" routerLink="/admin/moderation" routerLinkActive="active" class="title-page">
diff --git a/client/src/app/+admin/admin.module.ts b/client/src/app/+admin/admin.module.ts
index 9c56b5750..fdbe70314 100644
--- a/client/src/app/+admin/admin.module.ts
+++ b/client/src/app/+admin/admin.module.ts
@@ -5,7 +5,7 @@ import { TableModule } from 'primeng/table'
 import { SharedModule } from '../shared'
 import { AdminRoutingModule } from './admin-routing.module'
 import { AdminComponent } from './admin.component'
-import { FollowersListComponent, FollowingAddComponent, FollowsComponent } from './follows'
+import { FollowersListComponent, FollowingAddComponent, FollowsComponent, VideoRedundanciesListComponent } from './follows'
 import { FollowingListComponent } from './follows/following-list/following-list.component'
 import { UserCreateComponent, UserListComponent, UserPasswordComponent, UsersComponent, UserUpdateComponent } from './users'
 import {
@@ -16,7 +16,6 @@ import {
 } from './moderation'
 import { ModerationComponent } from '@app/+admin/moderation/moderation.component'
 import { RedundancyCheckboxComponent } from '@app/+admin/follows/shared/redundancy-checkbox.component'
-import { RedundancyService } from '@app/+admin/follows/shared/redundancy.service'
 import { InstanceAccountBlocklistComponent, InstanceServerBlocklistComponent } from '@app/+admin/moderation/instance-blocklist'
 import { JobsComponent } from '@app/+admin/system/jobs/jobs.component'
 import { JobService, LogsComponent, LogsService, SystemComponent } from '@app/+admin/system'
@@ -27,13 +26,18 @@ import { PluginSearchComponent } from '@app/+admin/plugins/plugin-search/plugin-
 import { PluginShowInstalledComponent } from '@app/+admin/plugins/plugin-show-installed/plugin-show-installed.component'
 import { SelectButtonModule } from 'primeng/selectbutton'
 import { PluginApiService } from '@app/+admin/plugins/shared/plugin-api.service'
+import { VideoRedundancyInformationComponent } from '@app/+admin/follows/video-redundancies-list/video-redundancy-information.component'
+import { ChartModule } from 'primeng/chart'
 
 @NgModule({
   imports: [
     AdminRoutingModule,
+
+    SharedModule,
+
     TableModule,
     SelectButtonModule,
-    SharedModule
+    ChartModule
   ],
 
   declarations: [
@@ -44,6 +48,8 @@ import { PluginApiService } from '@app/+admin/plugins/shared/plugin-api.service'
     FollowersListComponent,
     FollowingListComponent,
     RedundancyCheckboxComponent,
+    VideoRedundanciesListComponent,
+    VideoRedundancyInformationComponent,
 
     UsersComponent,
     UserCreateComponent,
@@ -78,7 +84,6 @@ import { PluginApiService } from '@app/+admin/plugins/shared/plugin-api.service'
   ],
 
   providers: [
-    RedundancyService,
     JobService,
     LogsService,
     DebugService,
diff --git a/client/src/app/+admin/follows/follows.component.html b/client/src/app/+admin/follows/follows.component.html
index 21d477132..46581daf9 100644
--- a/client/src/app/+admin/follows/follows.component.html
+++ b/client/src/app/+admin/follows/follows.component.html
@@ -1,5 +1,5 @@
 <div class="admin-sub-header">
-  <div i18n class="form-sub-title">Manage follows</div>
+  <div i18n class="form-sub-title">Follows & redundancies</div>
 
   <div class="admin-sub-nav">
     <a i18n routerLink="following-list" routerLinkActive="active">Following</a>
@@ -7,7 +7,9 @@
     <a i18n routerLink="following-add" routerLinkActive="active">Follow</a>
 
     <a i18n routerLink="followers-list" routerLinkActive="active">Followers</a>
+
+    <a i18n routerLink="video-redundancies-list" routerLinkActive="active">Video redundancies</a>
   </div>
 </div>
 
-<router-outlet></router-outlet>
\ No newline at end of file
+<router-outlet></router-outlet>
diff --git a/client/src/app/+admin/follows/follows.routes.ts b/client/src/app/+admin/follows/follows.routes.ts
index e84c79e82..298733eb0 100644
--- a/client/src/app/+admin/follows/follows.routes.ts
+++ b/client/src/app/+admin/follows/follows.routes.ts
@@ -6,6 +6,7 @@ import { FollowingAddComponent } from './following-add'
 import { FollowersListComponent } from './followers-list'
 import { UserRight } from '../../../../../shared'
 import { FollowingListComponent } from './following-list/following-list.component'
+import { VideoRedundanciesListComponent } from '@app/+admin/follows/video-redundancies-list'
 
 export const FollowsRoutes: Routes = [
   {
@@ -47,6 +48,10 @@ export const FollowsRoutes: Routes = [
             title: 'Add follow'
           }
         }
+      },
+      {
+        path: 'video-redundancies-list',
+        component: VideoRedundanciesListComponent
       }
     ]
   }
diff --git a/client/src/app/+admin/follows/index.ts b/client/src/app/+admin/follows/index.ts
index e94f33710..4fcb35cb1 100644
--- a/client/src/app/+admin/follows/index.ts
+++ b/client/src/app/+admin/follows/index.ts
@@ -1,5 +1,6 @@
 export * from './following-add'
 export * from './followers-list'
 export * from './following-list'
+export * from './video-redundancies-list'
 export * from './follows.component'
 export * from './follows.routes'
diff --git a/client/src/app/+admin/follows/shared/redundancy-checkbox.component.ts b/client/src/app/+admin/follows/shared/redundancy-checkbox.component.ts
index fa1da26bf..9d7883d97 100644
--- a/client/src/app/+admin/follows/shared/redundancy-checkbox.component.ts
+++ b/client/src/app/+admin/follows/shared/redundancy-checkbox.component.ts
@@ -1,7 +1,7 @@
 import { Component, Input } from '@angular/core'
 import { Notifier } from '@app/core'
 import { I18n } from '@ngx-translate/i18n-polyfill'
-import { RedundancyService } from '@app/+admin/follows/shared/redundancy.service'
+import { RedundancyService } from '@app/shared/video/redundancy.service'
 
 @Component({
   selector: 'my-redundancy-checkbox',
diff --git a/client/src/app/+admin/follows/shared/redundancy.service.ts b/client/src/app/+admin/follows/shared/redundancy.service.ts
deleted file mode 100644
index 87ae01c04..000000000
--- a/client/src/app/+admin/follows/shared/redundancy.service.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-import { catchError, map } from 'rxjs/operators'
-import { HttpClient } from '@angular/common/http'
-import { Injectable } from '@angular/core'
-import { RestExtractor } from '@app/shared'
-import { environment } from '../../../../environments/environment'
-
-@Injectable()
-export class RedundancyService {
-  static BASE_USER_SUBSCRIPTIONS_URL = environment.apiUrl + '/api/v1/server/redundancy'
-
-  constructor (
-    private authHttp: HttpClient,
-    private restExtractor: RestExtractor
-  ) { }
-
-  updateRedundancy (host: string, redundancyAllowed: boolean) {
-    const url = RedundancyService.BASE_USER_SUBSCRIPTIONS_URL + '/' + host
-
-    const body = { redundancyAllowed }
-
-    return this.authHttp.put(url, body)
-               .pipe(
-                 map(this.restExtractor.extractDataBool),
-                 catchError(err => this.restExtractor.handleError(err))
-               )
-  }
-
-}
diff --git a/client/src/app/+admin/follows/video-redundancies-list/index.ts b/client/src/app/+admin/follows/video-redundancies-list/index.ts
new file mode 100644
index 000000000..6a7c7f483
--- /dev/null
+++ b/client/src/app/+admin/follows/video-redundancies-list/index.ts
@@ -0,0 +1 @@
+export * from './video-redundancies-list.component'
diff --git a/client/src/app/+admin/follows/video-redundancies-list/video-redundancies-list.component.html b/client/src/app/+admin/follows/video-redundancies-list/video-redundancies-list.component.html
new file mode 100644
index 000000000..80c66ec60
--- /dev/null
+++ b/client/src/app/+admin/follows/video-redundancies-list/video-redundancies-list.component.html
@@ -0,0 +1,82 @@
+<div class="admin-sub-header">
+  <div i18n class="form-sub-title">Video redundancies list</div>
+
+  <div class="select-filter-block">
+    <label for="displayType" i18n>Display</label>
+
+    <div class="peertube-select-container">
+      <select id="displayType" name="displayType" [(ngModel)]="displayType" (ngModelChange)="onDisplayTypeChanged()">
+        <option value="my-videos">My videos duplicated by remote instances</option>
+        <option value="remote-videos">Remote videos duplicated by my instance</option>
+      </select>
+    </div>
+  </div>
+</div>
+
+<p-table
+  [value]="videoRedundancies" [lazy]="true" [paginator]="true" [totalRecords]="totalRecords" [rows]="rowsPerPage"
+  [sortField]="sort.field" [sortOrder]="sort.order" (onLazyLoad)="loadLazy($event)" dataKey="id"
+>
+  <ng-template pTemplate="header">
+    <tr>
+      <th i18n *ngIf="isDisplayingRemoteVideos()">Strategy</th>
+      <th i18n pSortableColumn="name">Video name <p-sortIcon field="name"></p-sortIcon></th>
+      <th i18n>Video URL</th>
+      <th i18n *ngIf="isDisplayingRemoteVideos()">Total size</th>
+      <th></th>
+    </tr>
+  </ng-template>
+
+  <ng-template pTemplate="body" let-redundancy>
+    <tr class="expander" [pRowToggler]="redundancy">
+      <td *ngIf="isDisplayingRemoteVideos()">{{ getRedundancyStrategy(redundancy) }}</td>
+
+      <td>{{ redundancy.name }}</td>
+
+      <td>
+        <a target="_blank" rel="noopener noreferrer" [href]="redundancy.url">{{ redundancy.url }}</a>
+      </td>
+
+      <td *ngIf="isDisplayingRemoteVideos()">{{ getTotalSize(redundancy) | bytes: 1 }}</td>
+
+      <td class="action-cell">
+        <my-delete-button (click)="removeRedundancy(redundancy)"></my-delete-button>
+      </td>
+    </tr>
+  </ng-template>
+
+  <ng-template pTemplate="rowexpansion" let-redundancy>
+    <tr>
+      <td colspan="2">
+        <div *ngFor="let file of redundancy.redundancies.files" class="expansion-block">
+          <my-video-redundancy-information [redundancyElement]="file"></my-video-redundancy-information>
+        </div>
+      </td>
+    </tr>
+
+    <tr>
+      <td colspan="2">
+        <div *ngFor="let playlist of redundancy.redundancies.streamingPlaylists">
+          <my-video-redundancy-information [redundancyElement]="playlist"></my-video-redundancy-information>
+        </div>
+      </td>
+    </tr>
+  </ng-template>
+</p-table>
+
+
+<div class="redundancies-charts" *ngIf="isDisplayingRemoteVideos()">
+  <div class="form-sub-title" i18n>Enabled strategies stats</div>
+
+  <div class="chart-blocks">
+
+    <div *ngIf="noRedundancies" i18n class="no-results">
+      No redundancy strategy is enabled on your instance.
+    </div>
+
+    <div class="chart-block" *ngFor="let r of redundanciesGraphsData">
+      <p-chart type="pie" [data]="r.graphData" [options]="r.options" width="300px" height="300px"></p-chart>
+    </div>
+
+  </div>
+</div>
diff --git a/client/src/app/+admin/follows/video-redundancies-list/video-redundancies-list.component.scss b/client/src/app/+admin/follows/video-redundancies-list/video-redundancies-list.component.scss
new file mode 100644
index 000000000..05018c281
--- /dev/null
+++ b/client/src/app/+admin/follows/video-redundancies-list/video-redundancies-list.component.scss
@@ -0,0 +1,37 @@
+@import '_variables';
+@import '_mixins';
+
+.expansion-block {
+  margin-bottom: 20px;
+}
+
+.admin-sub-header {
+  align-items: flex-end;
+
+  .select-filter-block {
+    &:not(:last-child) {
+      margin-right: 10px;
+    }
+
+    label {
+      margin-bottom: 2px;
+    }
+
+    .peertube-select-container {
+      @include peertube-select-container(auto);
+    }
+  }
+}
+
+.redundancies-charts {
+  margin-top: 50px;
+
+  .chart-blocks {
+    display: flex;
+    justify-content: center;
+
+    .chart-block {
+      margin: 0 20px;
+    }
+  }
+}
diff --git a/client/src/app/+admin/follows/video-redundancies-list/video-redundancies-list.component.ts b/client/src/app/+admin/follows/video-redundancies-list/video-redundancies-list.component.ts
new file mode 100644
index 000000000..4b41d1d86
--- /dev/null
+++ b/client/src/app/+admin/follows/video-redundancies-list/video-redundancies-list.component.ts
@@ -0,0 +1,178 @@
+import { Component, OnInit } from '@angular/core'
+import { Notifier, ServerService } from '@app/core'
+import { SortMeta } from 'primeng/api'
+import { ConfirmService } from '../../../core/confirm/confirm.service'
+import { RestPagination, RestTable } from '../../../shared'
+import { I18n } from '@ngx-translate/i18n-polyfill'
+import { VideoRedundanciesTarget, VideoRedundancy } from '@shared/models'
+import { peertubeLocalStorage } from '@app/shared/misc/peertube-web-storage'
+import { VideosRedundancyStats } from '@shared/models/server'
+import { BytesPipe } from 'ngx-pipes'
+import { RedundancyService } from '@app/shared/video/redundancy.service'
+
+@Component({
+  selector: 'my-video-redundancies-list',
+  templateUrl: './video-redundancies-list.component.html',
+  styleUrls: [ './video-redundancies-list.component.scss' ]
+})
+export class VideoRedundanciesListComponent extends RestTable implements OnInit {
+  private static LOCAL_STORAGE_DISPLAY_TYPE = 'video-redundancies-list-display-type'
+
+  videoRedundancies: VideoRedundancy[] = []
+  totalRecords = 0
+  rowsPerPage = 10
+
+  sort: SortMeta = { field: 'name', order: 1 }
+  pagination: RestPagination = { count: this.rowsPerPage, start: 0 }
+  displayType: VideoRedundanciesTarget = 'my-videos'
+
+  redundanciesGraphsData: { stats: VideosRedundancyStats, graphData: object, options: object }[] = []
+
+  noRedundancies = false
+
+  private bytesPipe: BytesPipe
+
+  constructor (
+    private notifier: Notifier,
+    private confirmService: ConfirmService,
+    private redundancyService: RedundancyService,
+    private serverService: ServerService,
+    private i18n: I18n
+  ) {
+    super()
+
+    this.bytesPipe = new BytesPipe()
+  }
+
+  ngOnInit () {
+    this.loadSelectLocalStorage()
+
+    this.initialize()
+
+    this.serverService.getServerStats()
+        .subscribe(res => {
+          const redundancies = res.videosRedundancy
+
+          if (redundancies.length === 0) this.noRedundancies = true
+
+          for (const r of redundancies) {
+            this.buildPieData(r)
+          }
+        })
+  }
+
+  isDisplayingRemoteVideos () {
+    return this.displayType === 'remote-videos'
+  }
+
+  getTotalSize (redundancy: VideoRedundancy) {
+    return redundancy.redundancies.files.reduce((a, b) => a + b.size, 0) +
+      redundancy.redundancies.streamingPlaylists.reduce((a, b) => a + b.size, 0)
+  }
+
+  onDisplayTypeChanged () {
+    this.pagination.start = 0
+    this.saveSelectLocalStorage()
+
+    this.loadData()
+  }
+
+  getRedundancyStrategy (redundancy: VideoRedundancy) {
+    if (redundancy.redundancies.files.length !== 0) return redundancy.redundancies.files[0].strategy
+    if (redundancy.redundancies.streamingPlaylists.length !== 0) return redundancy.redundancies.streamingPlaylists[0].strategy
+
+    return ''
+  }
+
+  buildPieData (stats: VideosRedundancyStats) {
+    const totalSize = stats.totalSize
+      ? stats.totalSize - stats.totalUsed
+      : stats.totalUsed
+
+    if (totalSize === 0) return
+
+    this.redundanciesGraphsData.push({
+      stats,
+      graphData: {
+        labels: [ this.i18n('Used'), this.i18n('Available') ],
+        datasets: [
+          {
+            data: [ stats.totalUsed, totalSize ],
+            backgroundColor: [
+              '#FF6384',
+              '#36A2EB'
+            ],
+            hoverBackgroundColor: [
+              '#FF6384',
+              '#36A2EB'
+            ]
+          }
+        ]
+      },
+      options: {
+        title: {
+          display: true,
+          text: stats.strategy
+        },
+
+        tooltips: {
+          callbacks: {
+            label: (tooltipItem: any, data: any) => {
+              const dataset = data.datasets[tooltipItem.datasetIndex]
+              let label = data.labels[tooltipItem.index]
+              if (label) label += ': '
+              else label = ''
+
+              label += this.bytesPipe.transform(dataset.data[tooltipItem.index], 1)
+              return label
+            }
+          }
+        }
+      }
+    })
+  }
+
+  async removeRedundancy (redundancy: VideoRedundancy) {
+    const message = this.i18n('Do you really want to remove this video redundancy?')
+    const res = await this.confirmService.confirm(message, this.i18n('Remove redundancy'))
+    if (res === false) return
+
+    this.redundancyService.removeVideoRedundancies(redundancy)
+      .subscribe(
+        () => {
+          this.notifier.success(this.i18n('Video redundancies removed!'))
+          this.loadData()
+        },
+
+        err => this.notifier.error(err.message)
+      )
+
+  }
+
+  protected loadData () {
+    const options = {
+      pagination: this.pagination,
+      sort: this.sort,
+      target: this.displayType
+    }
+
+    this.redundancyService.listVideoRedundancies(options)
+                      .subscribe(
+                        resultList => {
+                          this.videoRedundancies = resultList.data
+                          this.totalRecords = resultList.total
+                        },
+
+                        err => this.notifier.error(err.message)
+                      )
+  }
+
+  private loadSelectLocalStorage () {
+    const displayType = peertubeLocalStorage.getItem(VideoRedundanciesListComponent.LOCAL_STORAGE_DISPLAY_TYPE)
+    if (displayType) this.displayType = displayType as VideoRedundanciesTarget
+  }
+
+  private saveSelectLocalStorage () {
+    peertubeLocalStorage.setItem(VideoRedundanciesListComponent.LOCAL_STORAGE_DISPLAY_TYPE, this.displayType)
+  }
+}
diff --git a/client/src/app/+admin/follows/video-redundancies-list/video-redundancy-information.component.html b/client/src/app/+admin/follows/video-redundancies-list/video-redundancy-information.component.html
new file mode 100644
index 000000000..a379520e3
--- /dev/null
+++ b/client/src/app/+admin/follows/video-redundancies-list/video-redundancy-information.component.html
@@ -0,0 +1,24 @@
+<div>
+  <span class="label">Url</span>
+  <a target="_blank" rel="noopener noreferrer" [href]="redundancyElement.fileUrl">{{ redundancyElement.fileUrl }}</a>
+</div>
+
+<div>
+  <span class="label">Created on</span>
+  <span>{{ redundancyElement.createdAt | date: 'medium' }}</span>
+</div>
+
+<div>
+  <span class="label">Expires on</span>
+  <span>{{ redundancyElement.expiresOn | date: 'medium' }}</span>
+</div>
+
+<div>
+  <span class="label">Size</span>
+  <span>{{ redundancyElement.size | bytes: 1 }}</span>
+</div>
+
+<div *ngIf="redundancyElement.strategy">
+  <span class="label">Strategy</span>
+  <span>{{ redundancyElement.strategy }}</span>
+</div>
diff --git a/client/src/app/+admin/follows/video-redundancies-list/video-redundancy-information.component.scss b/client/src/app/+admin/follows/video-redundancies-list/video-redundancy-information.component.scss
new file mode 100644
index 000000000..6b09fbb01
--- /dev/null
+++ b/client/src/app/+admin/follows/video-redundancies-list/video-redundancy-information.component.scss
@@ -0,0 +1,8 @@
+@import '_variables';
+@import '_mixins';
+
+.label {
+  display: inline-block;
+  min-width: 100px;
+  font-weight: $font-semibold;
+}
diff --git a/client/src/app/+admin/follows/video-redundancies-list/video-redundancy-information.component.ts b/client/src/app/+admin/follows/video-redundancies-list/video-redundancy-information.component.ts
new file mode 100644
index 000000000..6f3090c08
--- /dev/null
+++ b/client/src/app/+admin/follows/video-redundancies-list/video-redundancy-information.component.ts
@@ -0,0 +1,11 @@
+import { Component, Input } from '@angular/core'
+import { FileRedundancyInformation, StreamingPlaylistRedundancyInformation } from '@shared/models'
+
+@Component({
+  selector: 'my-video-redundancy-information',
+  templateUrl: './video-redundancy-information.component.html',
+  styleUrls: [ './video-redundancy-information.component.scss' ]
+})
+export class VideoRedundancyInformationComponent {
+  @Input() redundancyElement: FileRedundancyInformation | StreamingPlaylistRedundancyInformation
+}
diff --git a/client/src/app/+admin/system/jobs/jobs.component.ts b/client/src/app/+admin/system/jobs/jobs.component.ts
index 20c8ea71a..bc40452cf 100644
--- a/client/src/app/+admin/system/jobs/jobs.component.ts
+++ b/client/src/app/+admin/system/jobs/jobs.component.ts
@@ -16,8 +16,8 @@ import { JobTypeClient } from '../../../../types/job-type-client.type'
   styleUrls: [ './jobs.component.scss' ]
 })
 export class JobsComponent extends RestTable implements OnInit {
-  private static JOB_STATE_LOCAL_STORAGE_STATE = 'jobs-list-state'
-  private static JOB_STATE_LOCAL_STORAGE_TYPE = 'jobs-list-type'
+  private static LOCAL_STORAGE_STATE = 'jobs-list-state'
+  private static LOCAL_STORAGE_TYPE = 'jobs-list-type'
 
   jobState: JobStateClient = 'waiting'
   jobStates: JobStateClient[] = [ 'active', 'completed', 'failed', 'waiting', 'delayed' ]
@@ -34,7 +34,8 @@ export class JobsComponent extends RestTable implements OnInit {
     'video-file-import',
     'video-import',
     'videos-views',
-    'activitypub-refresher'
+    'activitypub-refresher',
+    'video-redundancy'
   ]
 
   jobs: Job[] = []
@@ -77,15 +78,15 @@ export class JobsComponent extends RestTable implements OnInit {
   }
 
   private loadJobStateAndType () {
-    const state = peertubeLocalStorage.getItem(JobsComponent.JOB_STATE_LOCAL_STORAGE_STATE)
+    const state = peertubeLocalStorage.getItem(JobsComponent.LOCAL_STORAGE_STATE)
     if (state) this.jobState = state as JobState
 
-    const type = peertubeLocalStorage.getItem(JobsComponent.JOB_STATE_LOCAL_STORAGE_TYPE)
+    const type = peertubeLocalStorage.getItem(JobsComponent.LOCAL_STORAGE_TYPE)
     if (type) this.jobType = type as JobType
   }
 
   private saveJobStateAndType () {
-    peertubeLocalStorage.setItem(JobsComponent.JOB_STATE_LOCAL_STORAGE_STATE, this.jobState)
-    peertubeLocalStorage.setItem(JobsComponent.JOB_STATE_LOCAL_STORAGE_TYPE, this.jobType)
+    peertubeLocalStorage.setItem(JobsComponent.LOCAL_STORAGE_STATE, this.jobState)
+    peertubeLocalStorage.setItem(JobsComponent.LOCAL_STORAGE_TYPE, this.jobType)
   }
 }
diff --git a/client/src/app/core/server/server.service.ts b/client/src/app/core/server/server.service.ts
index cdcbcb528..1f6cfb596 100644
--- a/client/src/app/core/server/server.service.ts
+++ b/client/src/app/core/server/server.service.ts
@@ -9,6 +9,7 @@ import { VideoConstant } from '../../../../../shared/models/videos'
 import { isDefaultLocale, peertubeTranslate } from '../../../../../shared/models/i18n'
 import { getDevLocale, isOnDevLocale } from '@app/shared/i18n/i18n-utils'
 import { sortBy } from '@app/shared/misc/utils'
+import { ServerStats } from '@shared/models/server'
 
 @Injectable()
 export class ServerService {
@@ -16,6 +17,8 @@ export class ServerService {
   private static BASE_VIDEO_URL = environment.apiUrl + '/api/v1/videos/'
   private static BASE_VIDEO_PLAYLIST_URL = environment.apiUrl + '/api/v1/video-playlists/'
   private static BASE_LOCALE_URL = environment.apiUrl + '/client/locales/'
+  private static BASE_STATS_URL = environment.apiUrl + '/api/v1/server/stats'
+
   private static CONFIG_LOCAL_STORAGE_KEY = 'server-config'
 
   configReloaded = new Subject<void>()
@@ -235,6 +238,10 @@ export class ServerService {
     return this.localeObservable.pipe(first())
   }
 
+  getServerStats () {
+    return this.http.get<ServerStats>(ServerService.BASE_STATS_URL)
+  }
+
   private loadAttributeEnum <T extends string | number> (
     baseUrl: string,
     attributeName: 'categories' | 'licences' | 'languages' | 'privacies',
diff --git a/client/src/app/shared/images/global-icon.component.ts b/client/src/app/shared/images/global-icon.component.ts
index 806aca347..b6e641228 100644
--- a/client/src/app/shared/images/global-icon.component.ts
+++ b/client/src/app/shared/images/global-icon.component.ts
@@ -1,6 +1,5 @@
 import { ChangeDetectionStrategy, Component, ElementRef, Input, OnInit } from '@angular/core'
 import { HooksService } from '@app/core/plugins/hooks.service'
-import { I18n } from '@ngx-translate/i18n-polyfill'
 
 const icons = {
   'add': require('!!raw-loader?!../../../assets/images/global/add.svg'),
diff --git a/client/src/app/shared/instance/instance-statistics.component.ts b/client/src/app/shared/instance/instance-statistics.component.ts
index 8ec728f05..40aa8a4c0 100644
--- a/client/src/app/shared/instance/instance-statistics.component.ts
+++ b/client/src/app/shared/instance/instance-statistics.component.ts
@@ -1,9 +1,6 @@
-import { map } from 'rxjs/operators'
-import { HttpClient } from '@angular/common/http'
 import { Component, OnInit } from '@angular/core'
-import { I18n } from '@ngx-translate/i18n-polyfill'
 import { ServerStats } from '@shared/models/server'
-import { environment } from '../../../environments/environment'
+import { ServerService } from '@app/core'
 
 @Component({
   selector: 'my-instance-statistics',
@@ -11,27 +8,15 @@ import { environment } from '../../../environments/environment'
   styleUrls: [ './instance-statistics.component.scss' ]
 })
 export class InstanceStatisticsComponent implements OnInit {
-  private static BASE_STATS_URL = environment.apiUrl + '/api/v1/server/stats'
-
   serverStats: ServerStats = null
 
   constructor (
-    private http: HttpClient,
-    private i18n: I18n
+    private serverService: ServerService
   ) {
   }
 
   ngOnInit () {
-    this.getStats()
-      .subscribe(
-        res => {
-          this.serverStats = res
-        }
-      )
-  }
-
-  getStats () {
-    return this.http
-      .get<ServerStats>(InstanceStatisticsComponent.BASE_STATS_URL)
+    this.serverService.getServerStats()
+        .subscribe(res => this.serverStats = res)
   }
 }
diff --git a/client/src/app/shared/shared.module.ts b/client/src/app/shared/shared.module.ts
index b2eb13f73..d06d37d8c 100644
--- a/client/src/app/shared/shared.module.ts
+++ b/client/src/app/shared/shared.module.ts
@@ -98,6 +98,7 @@ import { FollowService } from '@app/shared/instance/follow.service'
 import { MultiSelectModule } from 'primeng/multiselect'
 import { FeatureBooleanComponent } from '@app/shared/instance/feature-boolean.component'
 import { InputReadonlyCopyComponent } from '@app/shared/forms/input-readonly-copy.component'
+import { RedundancyService } from '@app/shared/video/redundancy.service'
 
 @NgModule({
   imports: [
@@ -300,6 +301,7 @@ import { InputReadonlyCopyComponent } from '@app/shared/forms/input-readonly-cop
     UserNotificationService,
 
     FollowService,
+    RedundancyService,
 
     I18n
   ]
diff --git a/client/src/app/shared/video/redundancy.service.ts b/client/src/app/shared/video/redundancy.service.ts
new file mode 100644
index 000000000..fb918d73b
--- /dev/null
+++ b/client/src/app/shared/video/redundancy.service.ts
@@ -0,0 +1,73 @@
+import { catchError, map, toArray } from 'rxjs/operators'
+import { HttpClient, HttpParams } from '@angular/common/http'
+import { Injectable } from '@angular/core'
+import { RestExtractor, RestPagination, RestService } from '@app/shared/rest'
+import { SortMeta } from 'primeng/api'
+import { ResultList, Video, VideoRedundanciesTarget, VideoRedundancy } from '@shared/models'
+import { concat, Observable } from 'rxjs'
+import { environment } from '../../../environments/environment'
+
+@Injectable()
+export class RedundancyService {
+  static BASE_REDUNDANCY_URL = environment.apiUrl + '/api/v1/server/redundancy'
+
+  constructor (
+    private authHttp: HttpClient,
+    private restService: RestService,
+    private restExtractor: RestExtractor
+  ) { }
+
+  updateRedundancy (host: string, redundancyAllowed: boolean) {
+    const url = RedundancyService.BASE_REDUNDANCY_URL + '/' + host
+
+    const body = { redundancyAllowed }
+
+    return this.authHttp.put(url, body)
+               .pipe(
+                 map(this.restExtractor.extractDataBool),
+                 catchError(err => this.restExtractor.handleError(err))
+               )
+  }
+
+  listVideoRedundancies (options: {
+    pagination: RestPagination,
+    sort: SortMeta,
+    target?: VideoRedundanciesTarget
+  }): Observable<ResultList<VideoRedundancy>> {
+    const { pagination, sort, target } = options
+
+    let params = new HttpParams()
+    params = this.restService.addRestGetParams(params, pagination, sort)
+
+    if (target) params = params.append('target', target)
+
+    return this.authHttp.get<ResultList<VideoRedundancy>>(RedundancyService.BASE_REDUNDANCY_URL + '/videos', { params })
+               .pipe(
+                 catchError(res => this.restExtractor.handleError(res))
+               )
+  }
+
+  addVideoRedundancy (video: Video) {
+    return this.authHttp.post(RedundancyService.BASE_REDUNDANCY_URL + '/videos', { videoId: video.id })
+      .pipe(
+        catchError(res => this.restExtractor.handleError(res))
+      )
+  }
+
+  removeVideoRedundancies (redundancy: VideoRedundancy) {
+    const observables = redundancy.redundancies.streamingPlaylists.map(r => r.id)
+      .concat(redundancy.redundancies.files.map(r => r.id))
+      .map(id => this.removeRedundancy(id))
+
+    return concat(...observables)
+      .pipe(toArray())
+  }
+
+  private removeRedundancy (redundancyId: number) {
+    return this.authHttp.delete(RedundancyService.BASE_REDUNDANCY_URL + '/videos/' + redundancyId)
+               .pipe(
+                 map(this.restExtractor.extractDataBool),
+                 catchError(res => this.restExtractor.handleError(res))
+               )
+  }
+}
diff --git a/client/src/app/shared/video/video-actions-dropdown.component.ts b/client/src/app/shared/video/video-actions-dropdown.component.ts
index afdeab18d..390d74c52 100644
--- a/client/src/app/shared/video/video-actions-dropdown.component.ts
+++ b/client/src/app/shared/video/video-actions-dropdown.component.ts
@@ -14,6 +14,7 @@ import { VideoBlacklistComponent } from '@app/shared/video/modals/video-blacklis
 import { VideoBlacklistService } from '@app/shared/video-blacklist'
 import { ScreenService } from '@app/shared/misc/screen.service'
 import { VideoCaption } from '@shared/models'
+import { RedundancyService } from '@app/shared/video/redundancy.service'
 
 export type VideoActionsDisplayType = {
   playlist?: boolean
@@ -22,6 +23,7 @@ export type VideoActionsDisplayType = {
   blacklist?: boolean
   delete?: boolean
   report?: boolean
+  duplicate?: boolean
 }
 
 @Component({
@@ -46,7 +48,8 @@ export class VideoActionsDropdownComponent implements OnChanges {
     update: true,
     blacklist: true,
     delete: true,
-    report: true
+    report: true,
+    duplicate: true
   }
   @Input() placement = 'left'
 
@@ -74,6 +77,7 @@ export class VideoActionsDropdownComponent implements OnChanges {
     private screenService: ScreenService,
     private videoService: VideoService,
     private blocklistService: BlocklistService,
+    private redundancyService: RedundancyService,
     private i18n: I18n
   ) { }
 
@@ -144,6 +148,10 @@ export class VideoActionsDropdownComponent implements OnChanges {
     return this.video && this.video instanceof VideoDetails && this.video.downloadEnabled
   }
 
+  canVideoBeDuplicated () {
+    return this.video.canBeDuplicatedBy(this.user)
+  }
+
   /* Action handlers */
 
   async unblacklistVideo () {
@@ -186,6 +194,18 @@ export class VideoActionsDropdownComponent implements OnChanges {
         )
   }
 
+  duplicateVideo () {
+    this.redundancyService.addVideoRedundancy(this.video)
+      .subscribe(
+        () => {
+          const message = this.i18n('This video will be duplicated by your instance.')
+          this.notifier.success(message)
+        },
+
+        err => this.notifier.error(err.message)
+      )
+  }
+
   onVideoBlacklisted () {
     this.videoBlacklisted.emit()
   }
@@ -234,6 +254,12 @@ export class VideoActionsDropdownComponent implements OnChanges {
           isDisplayed: () => this.authService.isLoggedIn() && this.displayOptions.blacklist && this.isVideoUnblacklistable()
         },
         {
+          label: this.i18n('Duplicate (redundancy)'),
+          handler: () => this.duplicateVideo(),
+          isDisplayed: () => this.authService.isLoggedIn() && this.displayOptions.duplicate && this.canVideoBeDuplicated(),
+          iconName: 'cloud-download'
+        },
+        {
           label: this.i18n('Delete'),
           handler: () => this.removeVideo(),
           isDisplayed: () => this.authService.isLoggedIn() && this.displayOptions.delete && this.isVideoRemovable(),
diff --git a/client/src/app/shared/video/video-miniature.component.ts b/client/src/app/shared/video/video-miniature.component.ts
index 598a7a983..1dfb3eec7 100644
--- a/client/src/app/shared/video/video-miniature.component.ts
+++ b/client/src/app/shared/video/video-miniature.component.ts
@@ -64,7 +64,8 @@ export class VideoMiniatureComponent implements OnInit {
     update: true,
     blacklist: true,
     delete: true,
-    report: true
+    report: true,
+    duplicate: false
   }
   showActions = false
   serverConfig: ServerConfig
diff --git a/client/src/app/shared/video/video.model.ts b/client/src/app/shared/video/video.model.ts
index fb98d5382..9eeaf41b0 100644
--- a/client/src/app/shared/video/video.model.ts
+++ b/client/src/app/shared/video/video.model.ts
@@ -152,4 +152,8 @@ export class Video implements VideoServerModel {
   isUpdatableBy (user: AuthUser) {
     return user && this.isLocal === true && (this.account.name === user.username || user.hasRight(UserRight.UPDATE_ANY_VIDEO))
   }
+
+  canBeDuplicatedBy (user: AuthUser) {
+    return user && this.isLocal === false && user.hasRight(UserRight.MANAGE_VIDEOS_REDUNDANCIES)
+  }
 }