Class: MossRuby

Inherits:
Object
  • Object
show all
Defined in:
lib/moss_ruby.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(userid, server = "moss.stanford.edu", port = 7690) ⇒ MossRuby

Returns a new instance of MossRuby.



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# File 'lib/moss_ruby.rb', line 49

def initialize(userid, server = "moss.stanford.edu", port = 7690)
	@options = {
		max_matches:            10,
		directory_submission:   false,
		show_num_matches:       250,
		experimental_server:    false,
		comment:                "",
		language:               "c"
	}
	@server = server
	@port = port
	@userid = userid
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/moss_ruby.rb', line 33

def options
  @options
end

#port ⇒ Object

Returns the value of attribute port.



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# File 'lib/moss_ruby.rb', line 32

def port
  @port
end

#server ⇒ Object

Returns the value of attribute server.



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

def server
  @server
end

#userid ⇒ Object

Returns the value of attribute userid.



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

def userid
  @userid
end

Class Method Details

.add_base_file(hash, file) ⇒ Object 



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# File 'lib/moss_ruby.rb', line 39

def self.add_base_file ( hash, file )
	hash[:base_files] << file
	hash
end

.add_file(hash, file) ⇒ Object 



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# File 'lib/moss_ruby.rb', line 44

def self.add_file ( hash, file )
	hash[:files] << file
	hash
end

.empty_file_hash ⇒ Object 



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# File 'lib/moss_ruby.rb', line 35

def self.empty_file_hash
	{ base_files: Array.new, files: Array.new }
end

Instance Method Details

#check(files_dict, callback = nil) ⇒ Object 



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# File 'lib/moss_ruby.rb', line 75

def check(files_dict, callback=nil)
	# Chech that the files_dict contains valid filenames
	files_dict[:base_files].each do |file_search|
		if Dir.glob(file_search).length == 0
			raise "Unable to locate base file(s) matching #{file_search}"
		end
	end

	if files_dict[:files].length == 0
		return
	end

	files_dict[:files].each do |file_search|
		if Dir.glob(file_search).length == 0
			raise "Unable to locate base file(s) matching #{file_search}"
		end
	end

	# Connect to the server
	callback.call('Connecting to MOSS') unless callback.nil?
	moss_server = TCPTimeout::TCPSocket.new @server, @port, connect_timeout: 10, write_timeout: 9, read_timeout: 300
	begin
		# Send header details
		callback.call(' - Sending configuration details') unless callback.nil?
		moss_server.write "moss #{@userid}\n"
		moss_server.write "directory #{@options[:directory_submission] ? 1 : 0 }\n"
		moss_server.write "X #{@options[:experimental_server] ? 1 : 0}\n"
		moss_server.write "maxmatches #{@options[:max_matches]}\n"
		moss_server.write "show #{@options[:show_num_matches]}\n"

		# Send language option
		moss_server.write "language #{@options[:language]}\n"

		callback.call(' - Checking language') unless callback.nil?
		line = gets(moss_server)
		if line.strip() != "yes"
			moss_server.write "end\n"
			raise "Invalid language option."
		end

		count = 1
		processing = files_dict[:base_files]
		processing.each do |file_search|
			callback.call(" - Sending base files #{count} of #{processing.count} - #{file_search}") unless callback.nil?
			files = Dir.glob(file_search)
			file_count = 1
			files.each do |file|
				callback.call("   - Base file #{file_count} of #{files.count} - #{file}") unless callback.nil?
				upload_file moss_server, file
				file_count += 1
			end
			count += 1
		end

		idx = 1
		count = 1
		processing = files_dict[:files]
		processing.each do |file_search|
			callback.call(" - Sending files #{count} of #{processing.count} - #{file_search}") unless callback.nil?
			files = Dir.glob(file_search)
			file_count = 1
			files.each do |file|
				callback.call("   - File #{idx} = #{file_count} of #{files.count} - #{file}") unless callback.nil?
				upload_file moss_server, file, idx
				idx += 1
				file_count += 1
			end
		end

		callback.call(" - Waiting for server response") unless callback.nil?
		moss_server.write "query 0 #{@options[:comment]}\n"

		result = gets(moss_server)

		moss_server.write "end\n"
		return result.strip()
	ensure
		moss_server.close
	end
end

#extract_results(uri, min_pct = 10, callback = nil) ⇒ Object 



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# File 'lib/moss_ruby.rb', line 156

def extract_results(uri, min_pct = 10, callback = nil)
	result = Array.new
	begin
		match = -1
		match_file = Array.new
		data = Array.new
		to_fetch = get_matches(uri, min_pct, callback)
		to_fetch.each do |id|
			match += 1
			callback.call("Checking match #{match + 1} (id #{id})") unless callback.nil?

			# read the two match files
			match_url = "#{uri}/match#{id}-top.html"
			match_top = URI.open(match_url).read().encode('UTF-8', 'binary', invalid: :replace, undef: :replace, replace: '?')

			callback.call(" - checking match #{match} percents") unless callback.nil?
			top = read_pcts match_top

			next if Integer(top[:pct0]) < min_pct && Integer(top[:pct1]) < min_pct

			callback.call(" - fetching #{match} html") unless callback.nil?

			match_file[0] = URI.open("#{uri}/match#{id}-0.html").read().encode('UTF-8', 'binary', invalid: :replace, undef: :replace, replace: '?')
			match_file[1] = URI.open("#{uri}/match#{id}-1.html").read().encode('UTF-8', 'binary', invalid: :replace, undef: :replace, replace: '?')

			# puts match_top
			# puts "---FILE0\n\n"
			# puts match_file[0]
			# puts "---FILE1\n\n"
			# puts match_file[1]

			callback.call(" - extracting data for #{match}") unless callback.nil?

			data[0] = read_data match_file[0]
			data[1] = read_data match_file[1]

			callback.call(" - adding #{match} result") unless callback.nil?
			result << [
				{
					filename: 	data[0][:filename],
					html:  		strip_a("<PRE>#{data[0][:html]}</PRE>"),
					pct:  		Integer(top[:pct0]),
					url: 		match_url,
					part_url: 	"#{uri}/match#{id}-0.html"
				},
				{
					filename: 	data[1][:filename],
					html:  		strip_a("<PRE>#{data[1][:html]}</PRE>"),
					pct:  		Integer(top[:pct1]),
					url: 		match_url,
					part_url: 	"#{uri}/match#{id}-1.html"
				}
			]
		end
	rescue OpenURI::HTTPError
		#end when there are no more matches -- indicated by 404 when accessing matches-n-top.html
	end

	result
end

#upload_file(moss_server, file, id = 0) ⇒ Object 



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

def upload_file (moss_server, file, id = 0)
	filename = file.strip.encode('UTF-8', invalid: :replace, undef: :replace, replace: '').gsub /[^\w\-\/.]/, '_'

	content = IO.read(file)
	size = content.bytes.length

	if size > 0
		moss_server.write "file #{id} #{@options[:language]} #{size} #{filename}\n"
		moss_server.write content
	end
end