Class: YouTubeRails

Inherits:
Object
  • Object
show all
Defined in:
lib/youtube_rails.rb

Constant Summary collapse

URL_FORMATS = 
{
    regular: /^(https?:\/\/)?(www\.)?youtube.com\/watch\?(.*\&)?v=(?<id>[^&]+)/,
    shortened: /^(https?:\/\/)?(www\.)?youtu.be\/(?<id>[^&]+)/,
    embed: /^(https?:\/\/)?(www\.)?youtube.com\/embed\/(?<id>[^&]+)/,
    embed_as3: /^(https?:\/\/)?(www\.)?youtube.com\/v\/(?<id>[^?]+)/,
    chromeless_as3: /^(https?:\/\/)?(www\.)?youtube.com\/apiplayer\?video_id=(?<id>[^&]+)/
}
INVALID_CHARS = 
/[^a-zA-Z0-9\:\/\?\=\&\$\-\_\.\+\!\*\'\(\)\,]/

Class Method Summary collapse

Class Method Details

.extract_video_id(youtube_url) ⇒ Object 



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# File 'lib/youtube_rails.rb', line 16

def self.extract_video_id(youtube_url)
  return nil if has_invalid_chars?(youtube_url)

  URL_FORMATS.values.inject(nil) do |result, format_regex|
    match = format_regex.match(youtube_url)
    match ? match[:id] : result
  end
end

.extract_video_image(youtube_url, version = 'default') ⇒ Object 



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# File 'lib/youtube_rails.rb', line 44

def self.extract_video_image(youtube_url, version = 'default')
  vid_id = extract_video_id(youtube_url)
  case version
    when 'default'
      "https://i.ytimg.com/vi/#{ vid_id }/default.jpg"
    when 'medium'
      "https://i.ytimg.com/vi/#{ vid_id }/mqdefault.jpg"
    when 'high'
      "https://i.ytimg.com/vi/#{ vid_id }/hqdefault.jpg"
    when 'maximum'
      "https://i.ytimg.com/vi/#{ vid_id }/sddefault.jpg"
  end
end

.has_invalid_chars?(youtube_url) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/youtube_rails.rb', line 12

def self.has_invalid_chars?(youtube_url)
  !INVALID_CHARS.match(youtube_url).nil?
end

.youtube_embed_url(youtube_url, width = 420, height = 315, options = {}) ⇒ Object 



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# File 'lib/youtube_rails.rb', line 25

def self.youtube_embed_url(youtube_url, width = 420, height = 315, options = {})
  %(<iframe width="#{width}" height="#{height}" src="#{ youtube_embed_url_only(youtube_url, options) }" frameborder="0" allowfullscreen></iframe>)
end

.youtube_embed_url_only(youtube_url, options = {}) ⇒ Object 



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# File 'lib/youtube_rails.rb', line 39

def self.youtube_embed_url_only(youtube_url, options = {})
  vid_id = extract_video_id(youtube_url)
 "http#{'s' if options[:ssl]}://www.youtube.com/embed/#{ vid_id }#{'?rel=0' if options[:suggestion]}"
end

.youtube_regular_url(youtube_url, options = {}) ⇒ Object 



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# File 'lib/youtube_rails.rb', line 29

def self.youtube_regular_url(youtube_url, options = {})
  vid_id = extract_video_id(youtube_url)
  "http#{'s' if options[:ssl]}://www.youtube.com/watch?v=#{ vid_id }"
end

.youtube_shortened_url(youtube_url, options = {}) ⇒ Object 



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# File 'lib/youtube_rails.rb', line 34

def self.youtube_shortened_url(youtube_url, options = {})
  vid_id = extract_video_id(youtube_url)
  "http#{'s' if options[:ssl]}://youtu.be/#{ vid_id }"
end