Youtube helper

Youtube embed helper.md

# Helpers for better embedding and manipulation of videos
# Place this code in app/helpers/videos_helper.rb
# Then from any view you can add:
#
#    <%= get_video_iframe('http://the.video.url') %>
#
# Optionally you can add width and height.
#
#    <%= get_video_iframe('http://the.video.url', '1600px', '900px') %>
#
# Thanks to https://stackoverflow.com/a/27878890/1498118
#
# for use sanitize in console ->  include ActionView::Helpers::SanitizeHelper

module VideosHelper

  require 'net/http'

  # Regex to find YouTube's and Vimeo's video ID
  YOUTUBE_REGEX = %r(^(http[s]*:\/\/)?(www.)?(youtube.com|youtu.be)\/(watch\?v=){0,1}([a-zA-Z0-9_-]{11}))
  VIMEO_REGEX = %r(^https?:\/\/(?:.*?)\.?(vimeo)\.com\/(\d+).*$)

  # Finds YouTube's video ID from given URL or [nil] if URL is invalid
  # The video ID matches the RegEx \[a-zA-Z0-9_-]{11}\
  def find_youtube_id url 
    url = sanitize url
    matches = YOUTUBE_REGEX.match url.to_str
    if matches
      matches[6] || matches[5]
    end
  end

  # Get YouTube video iframe from given URL
  def get_youtube_iframe url, width, height
    youtube_id = find_youtube_id url

    result = %(<iframe title="YouTube video player" width="#{width}"
                height="#{height}" src="//www.youtube.com/embed/#{ youtube_id }"
                frameborder="0" allowfullscreen></iframe>)
    result.html_safe
  end

  # Finds Vimeo's video ID from given URL or [nil] if URL is invalid
  def find_vimeo_id url
    url = sanitize url
    matches = VIMEO_REGEX.match url.to_str
    matches[2] if matches
  end

  # Get Vimeo video iframe from given URL
  def get_vimeo_iframe url, width, height
    vimeo_id = find_vimeo_id url
    uri = "https://vimeo.com/api/oembed.json?url=https%3A//vimeo.com/#{ vimeo_id }&width=#{ width }&height=#{ height }"
    # see -> https://stackoverflow.com/a/4581095/1498118
    response = Net::HTTP.get( URI.parse( uri ))
    json = JSON.parse response
    json['html'].html_safe
  end

  # Main function
  # Return a video iframe
  # If the url provided is not a valid YouTube or Vimeo url it returns [nil]
  def get_video_iframe(url, width = "560px", height = "315px")
    if find_vimeo_id(url)
      get_vimeo_iframe(url, width, height) 
    elsif find_youtube_id(url)
      get_youtube_iframe(url, width, height) 
    end
  end
end

 def youtube_id(youtube_url)
    regex = /(?:youtube(?:-nocookie)?\.com\/(?:[^\/\n\s]+\/\S+\/|(?:v|e(?:mbed)?)\/|\S*?[?&]v=)|youtu\.be\/)([a-zA-Z0-9_-]{11})/
    match = regex.match(youtube_url)
    if match && !match[1].blank?
      match[1]
    else
      nil
    end
  end
  
  
    def video_embed(video_url)

    # REGEX PARA EXTRAER EL ID DEL VIDEO
    regex_id = /(?:youtube(?:-nocookie)?\.com\/(?:[^\/\n\s]+\/\S+\/|(?:v|e(?:mbed)?)\/|\S*?[?&]v=)|youtu\.be\/|vimeo\.com\/)([a-zA-Z0-9_-]{8,11})/
    match_id = regex_id.match(video_url)
    video_id = ""
    if match_id && !match_id[1].blank?
      video_id = match_id[1]
    end

    # REGEX PARA EXTRAER EL PROVEEDOR - YOUTUBE/VIMEO
    regex_prov = /(youtube|youtu\.be|vimeo)/
    match_prov = regex_prov.match(video_url)
    video_prov = ""
    if match_prov && !match_prov[1].blank?
      video_prov = case match_prov[1]
                     when "youtube"
                       :youtube
                     when "youtu.be"
                       :youtube
                     when "vimeo"
                       :vimeo
      end
    end

    case video_prov
      when :youtube
        "https://www.youtube.com/embed/#{video_id}"
      when :vimeo
        "https://player.vimeo.com/video/#{video_id}"
    end

  end