media-backend

media.ccc.de webfrontend meta data editor and API.

Install

Ruby Version

ruby 2.0.0, 2.1.1

Deployment Instructions

Copy and edit the configuration file config/initializers/media_backend.rb.example to config/initializers/media_backend.rb.

recordings_base_dir: '/srv/recordings/cdn',
images_base_dir: '/srv/www/cdn',
tmp_dir: '/tmp'

You need to create a secret token for sessions:

cp config/initializers/secret_token.rb.example config/initializers/secret_token.rb
rake secret

And another one for devise:

cp config/initializers/devise_secret_token.rb.example config/initializers/devise_secret_token.rb
rake secret

Database Creation

Setup your database in config/database.yml needed.

rake db:setup

Services (job queues, cache servers, search engines, etc.)

bin/delayed_job start

Start a Server

To get the backend up and running:

export RAILS_ENV=production
bundle install
rake db:setup
rake assets:precompile
gem install passenger
passenger start -p 8023

Trigger nanoc

Nanoc is triggered via sudo

Cmnd_Alias FRONTED = /srv/www/media-frontend/media-frontend/bin/frontend-wrapper
media-backend ALL = (media-frontend) NOPASSWD: FRONTEND

First Login

Login as user admin@example.org with password media123. Change these values after the first login.

REST - API

All API calls need to use the JSON format.

Most REST operations work as expected. Examples for resource creation are listed on the applications dashboard page.

You can use the API to register a new conference. The conference acronym and the URL of the schedule.xml are required. However folders and access rights need to be setup manually, before you can upload images and videos.

curl -H "CONTENT-TYPE: application/json" -d '{
    "api_key":"4","acronym":"frab123",
    "recordings_path":"conference/frab123",
    "images_path":"events/frab",
    "webgen_location":"event/frab/frab123",
    "aspect_ratio":"16:9",
    "title":null,
    "schedule_url":"http://progam/schedule.xml"
  }' "http://localhost:3000/api/conferences"

You can add images to an event, like the poster image. The event is identified by its guid and the conference acronym.

curl -H "CONTENT-TYPE: application/json" -d '{
    "api_key":"4",
    "acronym":"frab123",
    "guid":"123",
    "slug":"123",
    "poster_url":"http://koeln.ccc.de/images/chaosknoten_preview.jpg",
    "thumb_url":"http://koeln.ccc.de/images/chaosknoten.jpg"
  }' "http://localhost:3000/api/events"

Recordings are added by specifiying the parent events guid, an URL and a filename. The recording length is specified in seconds.

curl -H "CONTENT-TYPE: application/json" -d '{
    "api_key":"4",
    "guid":"123",
    "recording":{
      "original_url":"file:///tmp/123",
      "filename":"some.mp4",
      "folder":"mp4",
      "folder":"video/mp4",
      "size":"12",
      "length":"3600"
      }
  }' "http://localhost:3000/api/recordings"

Download event images again, after event was created.

curl -H "CONTENT-TYPE: application/json" -d '{
    "api_key":"4",
    "guid":"123",
    "poster_url":"http://koeln.ccc.de/images/chaosknoten_preview.jpg",
    "thumb_url":"http://koeln.ccc.de/images/chaosknoten.jpg"
  }' "http://localhost:3000/api/events/download"

Download recordings again, after recording was created.

curl -H "CONTENT-TYPE: application/json" -d '{
    "api_key":"4",
    "guid":"123"
  }' "http://localhost:3000/api/recordings/download"

Create news items

/api/news

Generate the site

/api/conferences/run_compile

Update promoted flag of events by view count

/api/events/update_promoted

Public JSON API

/public/conferences
/public/conferences/:id
/public/events
/public/events/:id
/public/recordings
/public/recordings/:id
/public/mirrors

Example:

curl -H "CONTENT-TYPE: application/json" http://localhost:3000/public/conferences