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

.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 41

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_link?(youtube_url) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/easy_youtube.rb', line 54

def self.valid_youtube_link?(youtube_url)
        if has_invalid_chars?(youtube_url)
                false
        else
          video_id = extract_video_id(youtube_url)
                valid_id?(id)
        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)
 video_id = extract_video_id(youtube_url)
 %(<iframe width="#{width}" height="#{height}" src="http://www.youtube.com/embed/#{video_id}" frameborder="0" allowfullscreen></iframe>)
end

.youtube_regular_url(youtube_url) ⇒ Object 



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# File 'lib/easy_youtube.rb', line 31

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

.youtube_shortened_url(youtube_url) ⇒ Object 



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# File 'lib/easy_youtube.rb', line 36

def self.youtube_shortened_url(youtube_url)
  video_id = extract_video_id(youtube_url)
  "http://youtu.be/#{ video_id }"
end