Class: Purple::Getter::Getter_wget

Inherits:
Generic
  • Object
show all
Defined in:
lib/purple/getter_wget.rb

Instance Attribute Summary

Attributes inherited from Generic

#content_type, #length, #thread, #uri

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Getter_wget

Returns a new instance of Getter_wget.



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# File 'lib/purple/getter_wget.rb', line 6

def initialize *args
    super
    @done = "0"
end

Instance Method Details

#get ⇒ Object 



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# File 'lib/purple/getter_wget.rb', line 11

def get
    @thread = Thread.new do
        filename = File.basename uri.path
        Open3.popen3 "wget --progress dot -O '#{@destdir}/#{filename}' #{@uri.to_s} 2>&1" do
            |pw, pr, pe|
            parse_input pw, pr, pe
        end
    end
end

#get_status ⇒ Object 



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# File 'lib/purple/getter_wget.rb', line 21

def get_status
    [@status, @done]
end

#parse_input(pw, pr, pe) ⇒ Object

wget specific methods



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# File 'lib/purple/getter_wget.rb', line 27

def parse_input pw, pr, pe
    #puts "DEBUG Getter_wget#parse_input: Start"

    loop do
        # Start line
        2.times { pr.gets }

        # Host lookup
        #puts "DEBUG Getter_wget#parse_input: Host lookup"
        line = pr.gets
        #puts "->#{line}"
        if line =~ /failed:/
            @status = 'Host lookup failed'
            return
        end

        # Connecting
        #puts "DEBUG Getter_wget#parse_input: Connecting"
        line = pr.gets
        #puts "->#{line}"
        md = /^Connecting to (.*?)... (.*?)$/.match line
        #puts "DEBUG Getter_wget#parse_input: md[2]=#{md[2].inspect}"

        unless 'connected.' == md[2]
            @status = 'Connection failed'
            return
        end

        # Request
        #puts "DEBUG Getter_wget#parse_input: Sending request"
        line = pr.gets
        #puts "->#{line}"
        md = /HTTP request sent, awaiting response... (.*)/.match line
        case md[1]
        when '200 OK'
            # Okay. Continue
        when /^3\d{2}/
            # Redirection
            pr.gets # Location line
            redo
        else
            @status = md[1]
            return
        end

        break
    end

    # Content details
    line = pr.gets
    #puts "->#{line}"
    md = /Length: (.*?) \[(.*?)\]/.match line
    @length = md[1].gsub(',', '').to_i
    @content_type = md[2]

    # Empty line
    pr.gets

    # Data incoming
    pr.each do |line|
        #puts "->#{line}"
             
        md = / *([0-9]+)K[ \.]+([0-9]+)% +([0-9\.,]+ KB\/s)/.match line
        #puts (md ? "DEBUG #{md.to_a.inspect}" : "DEBUG nil")
        if md
            @done = md[2]
            @rate = md[3]
            next
        end

        if "100" == @done
            @status = "Done"
        end
        pr.read
    end
end