Web Push Notifications (#3243)

* feat: Register push subscription

* feat: Notify when mentioned

* feat: Boost, favourite, reply, follow, follow request

* feat: Notification interaction

* feat: Handle change of public key

* feat: Unsubscribe if things go wrong

* feat: Do not send normal notifications if push is enabled

* feat: Focus client if open

* refactor: Move push logic to WebPushSubscription

* feat: Better title and body

* feat: Localize messages

* chore: Fix lint errors

* feat: Settings

* refactor: Lazy load

* fix: Check if push settings exist

* feat: Device-based preferences

* refactor: Simplify logic

* refactor: Pull request feedback

* refactor: Pull request feedback

* refactor: Create /api/web/push_subscriptions endpoint

* feat: Spec PushSubscriptionController

* refactor: WebPushSubscription => Web::PushSubscription

* feat: Spec Web::PushSubscription

* feat: Display first media attachment

* feat: Support direction

* fix: Stuff broken while rebasing

* refactor: Integration with session activations

* refactor: Cleanup

* refactor: Simplify implementation

* feat: Set VAPID keys via environment

* chore: Comments

* fix: Crash when no alerts

* fix: Set VAPID keys in testing environment

* fix: Follow link

* feat: Notification actions

* fix: Delete previous subscription

* chore: Temporary logs

* refactor: Move migration to a later date

* fix: Fetch the correct session activation and misc bugs

* refactor: Move migration to a later date

* fix: Remove follow request (no notifications)

* feat: Send administrator contact to push service

* feat: Set time-to-live

* fix: Do not show sensitive images

* fix: Reducer crash in error handling

* feat: Add badge

* chore: Fix lint error

* fix: Checkbox label overlap

* fix: Check for payload support

* fix: Rename action "type" (crash in latest Chrome)

* feat: Action to expand notification

* fix: Lint errors

* fix: Unescape notification body

* fix: Do not allow boosting if the status is hidden

* feat: Add VAPID keys to the production sample environment

* fix: Strip HTML tags from status

* refactor: Better error messages

* refactor: Handle browser not implementing the VAPID protocol (Samsung Internet)

* fix: Error when target_status is nil

* fix: Handle lack of image

* fix: Delete reference to invalid subscriptions

* feat: Better error handling

* fix: Unescape HTML characters after tags are striped

* refactor: Simpify code

* fix: Modify to work with #4091

* Sort strings alphabetically

* i18n: Updated Polish translation

it annoys me that it's not fully localized :P

* refactor: Use current_session in PushSubscriptionController

* fix: Rebase mistake

* fix: Set cacheName to mastodon

* refactor: Pull request feedback

* refactor: Remove logging statements

* chore(yarn): Fix conflicts with master

* chore(yarn): Copy latest from master

* chore(yarn): Readd offline-plugin

* refactor: Use save! and update!

* refactor: Send notifications async

* fix: Allow retry when push fails

* fix: Save track for failed pushes

* fix: Minify sw.js

* fix: Remove account_id from fabricator

3 files changed, 28 insertions, 1 deletions

diff --git a/db/migrate/20170713175513_create_web_push_subscriptions.rb b/db/migrate/20170713175513_create_web_push_subscriptions.rb
new file mode 100644
index 000000000..4e5c2ba00
--- /dev/null
+++ b/db/migrate/20170713175513_create_web_push_subscriptions.rb
@@ -0,0 +1,12 @@
+class CreateWebPushSubscriptions < ActiveRecord::Migration[5.1]
+  def change
+    create_table :web_push_subscriptions do |t|
+      t.string :endpoint, null: false
+      t.string :key_p256dh, null: false
+      t.string :key_auth, null: false
+      t.json :data
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/migrate/20170713190709_add_web_push_subscription_to_session_activations.rb b/db/migrate/20170713190709_add_web_push_subscription_to_session_activations.rb
new file mode 100644
index 000000000..d69cdfa50
--- /dev/null
+++ b/db/migrate/20170713190709_add_web_push_subscription_to_session_activations.rb
@@ -0,0 +1,5 @@
+class AddWebPushSubscriptionToSessionActivations < ActiveRecord::Migration[5.1]
+  def change
+    add_column :session_activations, :web_push_subscription_id, :integer
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index d6e572703..b2c59a0f6 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170713112503) do
+ActiveRecord::Schema.define(version: 20170713190709) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -258,6 +258,7 @@ ActiveRecord::Schema.define(version: 20170713112503) do
     t.string "user_agent", default: "", null: false
     t.inet "ip"
     t.integer "access_token_id"
+    t.integer "web_push_subscription_id"
     t.index ["session_id"], name: "index_session_activations_on_session_id", unique: true
     t.index ["user_id"], name: "index_session_activations_on_user_id"
   end
@@ -371,6 +372,15 @@ ActiveRecord::Schema.define(version: 20170713112503) do
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
   end
 
+  create_table "web_push_subscriptions", force: :cascade do |t|
+    t.string "endpoint", null: false
+    t.string "key_p256dh", null: false
+    t.string "key_auth", null: false
+    t.json "data"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
   create_table "web_settings", id: :serial, force: :cascade do |t|
     t.integer "user_id"
     t.json "data"