Class: EasyYouTube

Inherits:
Object
  • Object
show all
Defined in:
lib/easy_youtube.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

.create_embeded_url(video_id, width = 420, height = 315) ⇒ Object 



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# File 'lib/easy_youtube.rb', line 30

def self.create_embeded_url(video_id, width = 420, height = 315)
  %(<iframe width="#{width}" height="#{height}" src="http://www.youtube.com/embed/#{video_id}" frameborder="0" allowfullscreen></iframe>)
end

.create_regular_url(video_id) ⇒ Object 



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# File 'lib/easy_youtube.rb', line 38

def self.create_regular_url(video_id)
  "http://www.youtube.com/watch?v=#{video_id}"
end

.create_shortened_url(video_id) ⇒ Object 



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# File 'lib/easy_youtube.rb', line 46

def self.create_shortened_url(video_id)
  "http://youtu.be/#{ video_id }"      
end

.extract_video_id(youtube_url) ⇒ Object 



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# File 'lib/easy_youtube.rb', line 13

def self.extract_video_id(youtube_url)
  return nil if has_invalid_chars?(youtube_url)
  URL_FORMATS.values.each do |format_regex|
    match = format_regex.match(youtube_url)
    return match[:id] if match
  end
  return nil
end

.has_invalid_chars?(youtube_url) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/easy_youtube.rb', line 22

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

.valid_id?(id) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/easy_youtube.rb', line 50

def self.valid_id?(id)
  if id
    response = Net::HTTP.get("gdata.youtube.com", "/feeds/api/videos/#{id}")
    if ["Invalid id", "Video not found"].include? response
      false
    else
      true
    end
  else
    false
  end
end

.valid_youtube_url?(youtube_url) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/easy_youtube.rb', line 63

def self.valid_youtube_url?(youtube_url)
  if has_invalid_chars?(youtube_url)
    false
  else
    valid_id?(extract_video_id(youtube_url))
  end
end

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



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# File 'lib/easy_youtube.rb', line 26

def self.youtube_embed_url(youtube_url, width = 420, height = 315)
  create_embeded_url(extract_video_id(youtube_url), width, height)
end

.youtube_regular_url(youtube_url) ⇒ Object 



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

def self.youtube_regular_url(youtube_url)
  create_regular_url(extract_video_id(youtube_url))
end

.youtube_shortened_url(youtube_url) ⇒ Object 



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# File 'lib/easy_youtube.rb', line 42

def self.youtube_shortened_url(youtube_url)
  create_shortened_url(extract_video_id(youtube_url))
end