Instance homepage support (#4007)

* Prepare homepage parsers

* Add ability to update instance hompage

* Add ability to set homepage as landing page

* Add homepage preview in admin

* Dynamically update left menu for homepage

* Inject home content in homepage

* Add videos list and channel miniature custom markup

* Remove unused elements in markup service

3 files changed, 37 insertions, 2 deletions

diff --git a/server/initializers/constants.ts b/server/initializers/constants.ts
index 4cf7dcf0a..919f9ea6e 100644
--- a/server/initializers/constants.ts
+++ b/server/initializers/constants.ts
@@ -24,7 +24,7 @@ import { CONFIG, registerConfigChangedHandler } from './config'
 
 // ---------------------------------------------------------------------------
 
-const LAST_MIGRATION_VERSION = 645
+const LAST_MIGRATION_VERSION = 650
 
 // ---------------------------------------------------------------------------
 
diff --git a/server/initializers/database.ts b/server/initializers/database.ts
index 75a13ec8b..38e7a76d0 100644
--- a/server/initializers/database.ts
+++ b/server/initializers/database.ts
@@ -44,6 +44,7 @@ import { VideoStreamingPlaylistModel } from '../models/video/video-streaming-pla
 import { VideoTagModel } from '../models/video/video-tag'
 import { VideoViewModel } from '../models/video/video-view'
 import { CONFIG } from './config'
+import { ActorCustomPageModel } from '@server/models/account/actor-custom-page'
 
 require('pg').defaults.parseInt8 = true // Avoid BIGINT to be converted to string
 
@@ -141,7 +142,8 @@ async function initDatabaseModels (silent: boolean) {
     ThumbnailModel,
     TrackerModel,
     VideoTrackerModel,
-    PluginModel
+    PluginModel,
+    ActorCustomPageModel
   ])
 
   // Check extensions exist in the database
diff --git a/server/initializers/migrations/0650-actor-custom-pages.ts b/server/initializers/migrations/0650-actor-custom-pages.ts
new file mode 100644
index 000000000..1338327e8
--- /dev/null
+++ b/server/initializers/migrations/0650-actor-custom-pages.ts
@@ -0,0 +1,33 @@
+import * as Sequelize from 'sequelize'
+
+async function up (utils: {
+  transaction: Sequelize.Transaction
+  queryInterface: Sequelize.QueryInterface
+  sequelize: Sequelize.Sequelize
+  db: any
+}): Promise<void> {
+  {
+    const query = `
+    CREATE TABLE IF NOT EXISTS "actorCustomPage" (
+      "id" serial,
+      "content" TEXT,
+      "type" varchar(255) NOT NULL,
+      "actorId" integer NOT NULL REFERENCES "actor" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
+      "createdAt" timestamp WITH time zone NOT NULL,
+      "updatedAt" timestamp WITH time zone NOT NULL,
+      PRIMARY KEY ("id")
+    );
+    `
+
+    await utils.sequelize.query(query)
+  }
+}
+
+function down (options) {
+  throw new Error('Not implemented.')
+}
+
+export {
+  up,
+  down
+}