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callumj/hci.rb

Created October 23, 2011 14:20
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  1. callumj revised this gist Oct 23, 2011. No changes.
  2. callumj created this gist Oct 23, 2011.
    42 changes: 42 additions & 0 deletions hci.rb
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,42 @@
    require 'uri'
    require 'net/http'
    require 'fileutils'

    BASE = "http://openclassroom.stanford.edu/MainFolder/courses/HCI/videos/"

    for l in 1..42 do

    for p in 1..20 do
    uri = "CS147L" + l.to_s + "P" + p.to_s + ".flv"
    uri_obj = URI.parse(BASE + uri)
    success = false
    count = 0
    while (!(File.exists?(uri)) && !(File.exists?("#{uri}.lock")) && !success) do
    begin
    FileUtils.touch("#{uri}.lock")
    res = Net::HTTP.start(uri_obj.host, uri_obj.port) do |http|
    head_data = http.head(uri_obj.path)
    if head_data.code.eql?("200")
    puts "Getting contents of #{uri}"
    http.get(uri_obj.path)
    else
    nil
    end
    end
    if (res != nil && res.body != nil)
    puts "Writing #{uri} to file"
    open(uri, "wb") { |file| file.write(res.body) }
    end
    success = true
    rescue
    puts "Pull failed, retrying"
    count = count + 1
    success = true if count > 5
    end

    FileUtils.rm_f("#{uri}.lock") if File.exists?("#{uri}.lock")
    end

    puts "File #{uri} in place" if File.exists?(uri)
    end
    end
    42 changes: 42 additions & 0 deletions web.rb
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,42 @@
    require 'uri'
    require 'net/http'
    require 'fileutils'

    BASE = "http://openclassroom.stanford.edu/MainFolder/courses/WebApplications/videos/"

    for l in 1..42 do

    for p in 1..20 do
    uri = "CS142L" + l.to_s + "P" + p.to_s + ".flv"
    uri_obj = URI.parse(BASE + uri)
    success = false
    count = 0
    while (!(File.exists?(uri)) && !(File.exists?("#{uri}.lock")) && !success) do
    begin
    FileUtils.touch("#{uri}.lock")
    res = Net::HTTP.start(uri_obj.host, uri_obj.port) do |http|
    head_data = http.head(uri_obj.path)
    if head_data.code.eql?("200")
    puts "Getting contents of #{uri}"
    http.get(uri_obj.path)
    else
    nil
    end
    end
    if (res != nil && res.body != nil)
    puts "Writing #{uri} to file"
    open(uri, "wb") { |file| file.write(res.body) }
    end
    success = true
    rescue
    puts "Pull failed, retrying"
    count = count + 1
    success = true if count > 5
    end

    FileUtils.rm_f("#{uri}.lock") if File.exists?("#{uri}.lock")
    end

    puts "File #{uri} in place" if File.exists?(uri)
    end
    end