4nhokanko_archive.rb

#############################################################
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##                                                         ##
## _  _   _   _   ___ ____    ____    _    ____ _  ___ _ _ ##
##| || | | \ | | |_ _/ ___|  | __ )  / \  / ___| |/ / | | |##
##| || |_|  \| |  | |\___ \  |  _ \ / _ \| |   | ' /| | | |##
##|__   _| |\  |  | | ___) | | |_) / ___ \ |___| . \|_|_|_|##
##   |_| |_| \_| |___|____/  |____/_/   \_\____|_|\_(_|_|_)##
##                                                         ##
##                                                         ##
#############################################################
#############################################################

# This script is to download the drawings written
# by:	4n(https://danbooru.donmai.us/artists/65485)
# from: 4n様保管庫(http://hatoyt.web.fc2.com/4n)

require "open-uri"
require "fileutils"
require "nokogiri"

def checkMkdir(test)
        unless FileTest.exist?(test)
                FileUtils.mkdir_p(test)
                p "SaveDIR(#{test}) CREATED!"
        end
end

image_PATH=[]

42.times do | i |

		before,after=i*10+1,i*10+10
		before="01" if i==0
		p uri_EACHPAGE="http://hatoyt.web.fc2.com/4n/#{before}-#{after}.htm"
		
		begin; source=Nokogiri::HTML.parse(URI.open(uri_EACHPAGE).read)
			rescue; retry
		end
		
		image_PATH<< source.xpath("//*/p/img[@src]").map{|_|
			_='http://hatoyt.web.fc2.com/4n/'+_[:src]
		}

end

# remove recursive arraies
image_PATH.each_slice(2).map(&:last)

# create save directory
save_PATH="#{__dir__}/4n_archive_images"

checkMkdir(save_PATH)

flag=true
image_PATH.each do | _ |;_.each{ | image_URI |

	# give a filename & its saving path
	file_NAME=File.basename(image_URI)
	file_PATH="#{save_PATH}/#{'%02d' % (image_PATH.index(_)+1)}"

	checkMkdir(file_PATH)

	if FileTest.exist?(file_PATH+'/'+file_NAME)

		# already retrieved for past more than one time
		p "EXIST!"

	else

		# save a image
                File.open(file_PATH+'/'+file_NAME, 'wb') do | f |
			
			begin; image_DATA=URI.open(image_URI).read
				rescue;retry
			end

                        f.write(image_DATA)
			p "SAVED!(#{file_NAME})"

                end

	end

};end

4nhokanko_archive_ALLinONE.rb

#############################################################
#############################################################
##                                                         ##
## _  _   _   _   ___ ____    ____    _    ____ _  ___ _ _ ##
##| || | | \ | | |_ _/ ___|  | __ )  / \  / ___| |/ / | | |##
##| || |_|  \| |  | |\___ \  |  _ \ / _ \| |   | ' /| | | |##
##|__   _| |\  |  | | ___) | | |_) / ___ \ |___| . \|_|_|_|##
##   |_| |_| \_| |___|____/  |____/_/   \_\____|_|\_(_|_|_)##
##                                                         ##
##                                                         ##
#############################################################
#############################################################

# This script is to download the drawings written
# by:	4n(https://danbooru.donmai.us/artists/65485)
# from: 4n様保管庫(http://hatoyt.web.fc2.com/4n)

require "open-uri"
require "fileutils"
require "nokogiri"

def checkMkdir(test)
        unless FileTest.exist?(test)
                FileUtils.mkdir_p(test)
                p "SaveDIR(#{test}) CREATED!"
        end
end

image_PATH=[]

42.times do | i |

		before,after=i*10+1,i*10+10
		before="01" if i==0
		p uri_EACHPAGE="http://hatoyt.web.fc2.com/4n/#{before}-#{after}.htm"
		
		begin; source=Nokogiri::HTML.parse(URI.open(uri_EACHPAGE).read)
			rescue; retry
		end
		
		image_PATH<< source.xpath("//*/p/img[@src]").map{|_|
			_='http://hatoyt.web.fc2.com/4n/'+_[:src]
		}

end

# remove recursive arraies
image_PATH.each_slice(2).map(&:last)

# create save directory
save_PATH="#{__dir__}/4n_archive_images"

checkMkdir(save_PATH)

flag=true
image_PATH.each do | _ |;_.each{ | image_URI |

	# give a filename & its saving path
	file_NAME=File.basename(image_URI)
	file_PATH="#{save_PATH}/ALL"

	if flag; checkMkdir(file_PATH); flag=false; end

	if FileTest.exist?(file_PATH+'/'+file_NAME)

		# already retrieved for past more than one time
		p "EXIST!"

	else

		# save a image
                File.open(file_PATH+'/'+file_NAME, 'wb') do | f |
			
			begin; image_DATA=URI.open(image_URI).read
				rescue;retry
			end

                        f.write(image_DATA)
			                  p "SAVED!(#{file_NAME})"

                end

	end

};end