Save video metadata and improve video OpenGraph tags (#6481)

* Save metadata from video attachments, put correct dimensions into OG tags

* Add twitter:player for videos

* Fix code style and test

Gemfile

@@ -20,6 +20,7 @@ gem 'fog-local', '~> 0.4', require: false
 gem 'fog-openstack', '~> 0.1', require: false
 gem 'paperclip', '~> 5.1'
 gem 'paperclip-av-transcoder', '~> 0.6'
+gem 'streamio-ffmpeg', '~> 3.0'
 
 gem 'active_model_serializers', '~> 0.10'
 gem 'addressable', '~> 2.5'

Gemfile.lock

@@ -547,6 +547,8 @@ GEM
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     statsd-ruby (1.2.1)
+    streamio-ffmpeg (3.0.2)
+      multi_json (~> 1.8)
     strong_migrations (0.1.9)
       activerecord (>= 3.2.0)
     temple (0.8.0)
@@ -707,6 +709,7 @@ DEPENDENCIES
   simple_form (~> 3.4)
   simplecov (~> 0.14)
   sprockets-rails (~> 3.2)
+  streamio-ffmpeg (~> 3.0)
   strong_migrations
   tty-command
   tty-prompt

app/controllers/media_controller.rb

@@ -3,20 +3,26 @@
 class MediaController < ApplicationController
   include Authorization
 
-  before_action :verify_permitted_status
+  before_action :set_media_attachment
+  before_action :verify_permitted_status!
 
   def show
-    redirect_to media_attachment.file.url(:original)
+    redirect_to @media_attachment.file.url(:original)
+  end
+
+  def player
+    @body_classes = 'player'
+    raise ActiveRecord::RecordNotFound unless @media_attachment.video? || @media_attachment.gifv?
   end
 
   private
 
-  def media_attachment
+  def set_media_attachment
-    MediaAttachment.attached.find_by!(shortcode: params[:id])
+    @media_attachment = MediaAttachment.attached.find_by!(shortcode: params[:id] || params[:medium_id])
   end
 
-  def verify_permitted_status
+  def verify_permitted_status!
-    authorize media_attachment.status, :show?
+    authorize @media_attachment.status, :show?
   rescue Mastodon::NotPermittedError
     # Reraise in order to get a 404 instead of a 403 error code
     raise ActiveRecord::RecordNotFound

app/javascript/styles/mastodon/basics.scss

@@ -47,6 +47,10 @@ body {
     padding-bottom: 0;
   }
 
+  &.player {
+    text-align: center;
+  }
+
   &.embed {
     background: transparent;
     margin: 0;

app/javascript/styles/mastodon/stream_entries.scss

@@ -65,6 +65,10 @@
     }
   }
 
+  .media-gallery__gifv__label {
+    bottom: 9px;
+  }
+
   .status.light {
     padding: 14px 14px 14px (48px + 14px * 2);
     position: relative;
@@ -258,12 +262,12 @@
   .media-spoiler {
     background: $ui-primary-color;
     color: $white;
-    transition: all 100ms linear;
+    transition: all 40ms linear;
 
     &:hover,
     &:active,
     &:focus {
-      background: darken($ui-primary-color, 5%);
+      background: darken($ui-primary-color, 2%);
       color: unset;
     }
   }

app/models/media_attachment.rb

@@ -160,21 +160,37 @@ class MediaAttachment < ApplicationRecord
     meta = {}
 
     file.queued_for_write.each do |style, file|
-      begin
+      meta[style] = style == :small || image? ? image_geometry(file) : video_metadata(file)
+    end
+
+    meta
+  end
+
+  def image_geometry(file)
     geo = Paperclip::Geometry.from_file file
 
-        meta[style] = {
+    {
       width:  geo.width.to_i,
       height: geo.height.to_i,
       size: "#{geo.width.to_i}x#{geo.height.to_i}",
       aspect: geo.width.to_f / geo.height.to_f,
     }
   rescue Paperclip::Errors::NotIdentifiedByImageMagickError
-        meta[style] = {}
+    {}
-      end
   end
 
-    meta
+  def video_metadata(file)
+    movie = FFMPEG::Movie.new(file.path)
+
+    return {} unless movie.valid?
+
+    {
+      width: movie.width,
+      height: movie.height,
+      frame_rate: movie.frame_rate,
+      duration: movie.duration,
+      bitrate: movie.bitrate,
+    }
   end
 
   def appropriate_extension

app/views/media/player.html.haml

@@ -0,0 +1,2 @@
+%video{ poster: @media_attachment.file.url(:small), preload: 'auto', autoplay: 'autoplay', muted: 'muted', loop: 'loop', controls: 'controls', style: "width: #{@media_attachment.file.meta.dig('original', 'width')}px; height: #{@media_attachment.file.meta.dig('original', 'height')}px" }
+  %source{ src: @media_attachment.file.url(:original), type: @media_attachment.file_content_type }

app/views/stream_entries/_og_image.html.haml

@@ -1,22 +1,33 @@
 - if activity.is_a?(Status) && activity.media_attachments.any?
+  - player_card = false
   - activity.media_attachments.each do |media|
     - if media.image?
       = opengraph 'og:image', full_asset_url(media.file.url(:original))
       = opengraph 'og:image:type', media.file_content_type
       - unless media.file.meta.nil?
-        = opengraph 'og:image:width', media.file.meta['original']['width']
+        = opengraph 'og:image:width', media.file.meta.dig('original', 'width')
-        = opengraph 'og:image:height', media.file.meta['original']['height']
+        = opengraph 'og:image:height', media.file.meta.dig('original', 'height')
-    - elsif media.video?
+    - elsif media.video? || media.gifv?
+      - player_card = true
       = opengraph 'og:image', full_asset_url(media.file.url(:small))
       = opengraph 'og:image:type', 'image/png'
       - unless media.file.meta.nil?
-        = opengraph 'og:image:width', media.file.meta['small']['width']
+        = opengraph 'og:image:width', media.file.meta.dig('small', 'width')
-        = opengraph 'og:image:height', media.file.meta['small']['height']
+        = opengraph 'og:image:height', media.file.meta.dig('small', 'height')
       = opengraph 'og:video', full_asset_url(media.file.url(:original))
+      = opengraph 'og:video:secure_url', full_asset_url(media.file.url(:original))
       = opengraph 'og:video:type', media.file_content_type
+      = opengraph 'twitter:player', medium_player_url(media)
+      = opengraph 'twitter:player:stream', full_asset_url(media.file.url(:original))
+      = opengraph 'twitter:player:stream:content_type', media.file_content_type
       - unless media.file.meta.nil?
-        = opengraph 'og:video:width', media.file.meta['small']['width']
+        = opengraph 'og:video:width', media.file.meta.dig('original', 'width')
-        = opengraph 'og:video:height', media.file.meta['small']['height']
+        = opengraph 'og:video:height', media.file.meta.dig('original', 'height')
+        = opengraph 'twitter:player:width', media.file.meta.dig('original', 'width')
+        = opengraph 'twitter:player:height', media.file.meta.dig('original', 'height')
+  - if player_card
+    = opengraph 'twitter:card', 'player'
+  - else
     = opengraph 'twitter:card', 'summary_large_image'
 - else
   = opengraph 'og:image', full_asset_url(account.avatar.url(:original))

config/brakeman.ignore

@@ -7,7 +7,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 143,
+      "line": 147,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).inbox_url, Account.find(params[:id]).inbox_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -26,7 +26,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 149,
+      "line": 153,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).shared_inbox_url, Account.find(params[:id]).shared_inbox_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -45,7 +45,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 54,
+      "line": 57,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).url, Account.find(params[:id]).url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -67,7 +67,7 @@
       "line": 3,
       "link": "http://brakemanscanner.org/docs/warning_types/dynamic_render_path/",
       "code": "render(action => \"stream_entries/#{Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity_type.downcase}\", { Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity_type.downcase.to_sym => Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity, :centered => true })",
-      "render_path": [{"type":"controller","class":"StatusesController","method":"embed","line":41,"file":"app/controllers/statuses_controller.rb"}],
+      "render_path": [{"type":"controller","class":"StatusesController","method":"embed","line":45,"file":"app/controllers/statuses_controller.rb"}],
       "location": {
         "type": "template",
         "template": "stream_entries/embed"
@@ -102,7 +102,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 152,
+      "line": 156,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).followers_url, Account.find(params[:id]).followers_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -121,7 +121,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 127,
+      "line": 130,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).salmon_url, Account.find(params[:id]).salmon_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -140,10 +140,10 @@
       "check_name": "Render",
       "message": "Render path contains parameter value",
       "file": "app/views/admin/custom_emojis/index.html.haml",
-      "line": 31,
+      "line": 45,
       "link": "http://brakemanscanner.org/docs/warning_types/dynamic_render_path/",
       "code": "render(action => filtered_custom_emojis.eager_load(:local_counterpart).page(params[:page]), {})",
-      "render_path": [{"type":"controller","class":"Admin::CustomEmojisController","method":"index","line":10,"file":"app/controllers/admin/custom_emojis_controller.rb"}],
+      "render_path": [{"type":"controller","class":"Admin::CustomEmojisController","method":"index","line":11,"file":"app/controllers/admin/custom_emojis_controller.rb"}],
       "location": {
         "type": "template",
         "template": "admin/custom_emojis/index"
@@ -179,7 +179,7 @@
       "check_name": "Render",
       "message": "Render path contains parameter value",
       "file": "app/views/admin/accounts/index.html.haml",
-      "line": 64,
+      "line": 67,
       "link": "http://brakemanscanner.org/docs/warning_types/dynamic_render_path/",
       "code": "render(action => filtered_accounts.page(params[:page]), {})",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"index","line":12,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -191,6 +191,45 @@
       "confidence": "Weak",
       "note": ""
     },
+    {
+      "warning_type": "Cross-Site Request Forgery",
+      "warning_code": 7,
+      "fingerprint": "ab491f72606337a348482d006eb67a3b1616685fd48644d5ac909bbcd62a5000",
+      "check_name": "ForgerySetting",
+      "message": "'protect_from_forgery' should be called in WellKnown::HostMetaController",
+      "file": "app/controllers/well_known/host_meta_controller.rb",
+      "line": 4,
+      "link": "http://brakemanscanner.org/docs/warning_types/cross-site_request_forgery/",
+      "code": null,
+      "render_path": null,
+      "location": {
+        "type": "controller",
+        "controller": "WellKnown::HostMetaController"
+      },
+      "user_input": null,
+      "confidence": "High",
+      "note": ""
+    },
+    {
+      "warning_type": "Redirect",
+      "warning_code": 18,
+      "fingerprint": "ba699ddcc6552c422c4ecd50d2cd217f616a2446659e185a50b05a0f2dad8d33",
+      "check_name": "Redirect",
+      "message": "Possible unprotected redirect",
+      "file": "app/controllers/media_controller.rb",
+      "line": 10,
+      "link": "http://brakemanscanner.org/docs/warning_types/redirect/",
+      "code": "redirect_to(MediaAttachment.attached.find_by!(:shortcode => ((params[:id] or params[:medium_id]))).file.url(:original))",
+      "render_path": null,
+      "location": {
+        "type": "method",
+        "class": "MediaController",
+        "method": "show"
+      },
+      "user_input": "MediaAttachment.attached.find_by!(:shortcode => ((params[:id] or params[:medium_id]))).file.url(:original)",
+      "confidence": "High",
+      "note": ""
+    },
     {
       "warning_type": "Cross-Site Scripting",
       "warning_code": 4,
@@ -198,7 +237,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 116,
+      "line": 119,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).remote_url, Account.find(params[:id]).remote_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -249,6 +288,25 @@
       "confidence": "Weak",
       "note": ""
     },
+    {
+      "warning_type": "Cross-Site Request Forgery",
+      "warning_code": 7,
+      "fingerprint": "d4278f04e807ec58a23925f8ab31fad5e84692f2fb9f2f57e7931aff05d57cf8",
+      "check_name": "ForgerySetting",
+      "message": "'protect_from_forgery' should be called in WellKnown::WebfingerController",
+      "file": "app/controllers/well_known/webfinger_controller.rb",
+      "line": 4,
+      "link": "http://brakemanscanner.org/docs/warning_types/cross-site_request_forgery/",
+      "code": null,
+      "render_path": null,
+      "location": {
+        "type": "controller",
+        "controller": "WellKnown::WebfingerController"
+      },
+      "user_input": null,
+      "confidence": "High",
+      "note": ""
+    },
     {
       "warning_type": "Cross-Site Scripting",
       "warning_code": 4,
@@ -256,7 +314,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 146,
+      "line": 150,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).outbox_url, Account.find(params[:id]).outbox_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -275,10 +333,10 @@
       "check_name": "Render",
       "message": "Render path contains parameter value",
       "file": "app/views/stream_entries/show.html.haml",
-      "line": 21,
+      "line": 24,
       "link": "http://brakemanscanner.org/docs/warning_types/dynamic_render_path/",
       "code": "render(partial => \"stream_entries/#{Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity_type.downcase}\", { :locals => ({ Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity_type.downcase.to_sym => Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity, :include_threads => true }) })",
-      "render_path": [{"type":"controller","class":"StatusesController","method":"show","line":20,"file":"app/controllers/statuses_controller.rb"}],
+      "render_path": [{"type":"controller","class":"StatusesController","method":"show","line":22,"file":"app/controllers/statuses_controller.rb"}],
       "location": {
         "type": "template",
         "template": "stream_entries/show"
@@ -288,6 +346,6 @@
       "note": ""
     }
   ],
-  "updated": "2017-11-19 20:34:18 +0100",
+  "updated": "2018-02-16 06:42:53 +0100",
   "brakeman_version": "4.0.1"
 }

config/routes.rb

@@ -103,7 +103,10 @@ Rails.application.routes.draw do
     resources :sessions, only: [:destroy]
   end
 
-  resources :media,  only: [:show]
+  resources :media, only: [:show] do
+    get :player
+  end
+
   resources :tags,   only: [:show]
   resources :emojis, only: [:show]
   resources :invites, only: [:index, :create, :destroy]

spec/models/media_attachment_spec.rb

@@ -92,7 +92,6 @@ RSpec.describe MediaAttachment, type: :model do
     it 'sets meta' do
       expect(media.file.meta["original"]["width"]).to eq 128
       expect(media.file.meta["original"]["height"]).to eq 128
-      expect(media.file.meta["original"]["aspect"]).to eq 1.0
     end
   end