Class: Cherrypicker::Megavideo

Inherits:
PluginBase show all
Defined in:
lib/cherrypicker/plugins/megavideo.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from PluginBase

inherited

Constructor Details

#initialize(link, opts = {}) ⇒ Megavideo

Returns a new instance of Megavideo.



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# File 'lib/cherrypicker/plugins/megavideo.rb', line 13

def initialize(link, opts={})
  o = {
    :location => nil,
  }.merge(opts)

  @link         = link
  @filename     = ""
  @location     = o[:location]
  @download_url = ""
  @size         = 0

  video_id = @link[/v[\/=](\w*)&?/, 1]

  #credit http://stackoverflow.com/questions/5748876/build-array-of-flashvars-using-hpricot
  html = open("http://megavideo.com/?v=#{video_id}").read
  flashvars = Hash[ html.scan( /flashvars\.(\w+)\s*=\s*["']?(.+?)["']?;/ ) ]

  key_s =  flashvars["s"]
  key_un = flashvars["un"]
  key_k1 = flashvars["k1"]
  key_k2 = flashvars["k2"]

title = flashvars["title"]
@size = flashvars["size"].to_i * 1024 * 1024

@download_url = "http://www#{key_s}.megavideo.com/files/#{decrypt(key_un,key_k1,key_k2)}/#{title}.flv"
@filename = title + ".flv"
end

Instance Attribute Details

#download_url ⇒ Object

Returns the value of attribute download_url.



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# File 'lib/cherrypicker/plugins/megavideo.rb', line 7

def download_url
  @download_url
end

#filename ⇒ Object

Returns the value of attribute filename.



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# File 'lib/cherrypicker/plugins/megavideo.rb', line 7

def filename
  @filename
end

#link ⇒ Object

Returns the value of attribute link.



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# File 'lib/cherrypicker/plugins/megavideo.rb', line 7

def link
  @link
end

#location ⇒ Object

Returns the value of attribute location.



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# File 'lib/cherrypicker/plugins/megavideo.rb', line 7

def location
  @location
end

Class Method Details

.matches_provider?(url) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cherrypicker/plugins/megavideo.rb', line 9

def self.matches_provider?(url)
  url.include?("megavideo.com")
end

Instance Method Details

#decrypt(un, k1, k2) ⇒ Object

credit userscripts.org/scripts/review/42944



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# File 'lib/cherrypicker/plugins/megavideo.rb', line 42

def decrypt(un,k1,k2) #credit http://userscripts.org/scripts/review/42944
  k1 = k1.to_i
  k2 = k2.to_i

  #convert the hex "un" to binary
  location1 = Array.new
  un.each_char do |char|
    #puts "#{char} => #{char.to_i(16).to_s(2)}"
    location1 << ("000" + char.to_i(16).to_s(2))[-4,4]
  end

  location1 = location1.join("").split("")

  location6 = Array.new
  0.upto(383) do |n|
    k1 = (k1 * 11 + 77213) % 81371
    k2 = (k2 * 17 + 92717) % 192811
    location6[n] = (k1 + k2) % 128
  end

  location3 = Array.new
  location4 = Array.new
  location5 = Array.new
  location8 = Array.new

  256.downto(0) do |n|
    location5 = location6[n]
    location4 = n % 128		
    location8 = location1[location5]
    location1[location5] = location1[location4]
    location1[location4] = location8
  end

  0.upto(127) do |n|
    location1[n] = location1[n].to_i ^ location6[n+256] & 1
  end

  location12 = location1.join("")
  location7 = Array.new

  n = 0
  while (n < location12.length) do
    location9 = location12[n,4]
    location7 << location9
    n+=4
  end

  result = ""
  location7.each do |bin|
    result = result + bin.to_i(2).to_s(16)
  end
  result
end

#download ⇒ Object 



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# File 'lib/cherrypicker/plugins/megavideo.rb', line 96

def download
  Cherrypicker::download_file(@download_url, :location => @location, :size => @size)
end