RubyConf AU: Sinatra in SIX lines

How to do crazy stuff in Ruby

Video: https://vimeo.com/61087285

1. Sinatra in SIX Lines How to do crazy stuff with ruby %w.rack  )lt  INT  TERM..map{|l|trap(l){$r.stop}rescue  require  l};puts  "==  Almost  Sinatra/No  Version  has  taken  the  stage  on  4567  for  development  with  backup  from  Webrick" $n=Module.new{extend  Rack;a,D,S,q=Builder.new,Object.method(:define_method),/@@  *([^\n]+)\n(((?!@@)[^\n]*\n)*)/m %w[get  post  put  delete].map{|m|D.(m){|u,&b|a.map(u){run-­‐>(e){[200,{"Content-­‐Type"=>"text/html"},[a.instance_eval(&b)]]}}}} Tilt.mappings.map{|k,v|D.(k){|n,*o|$t||=(h={};File.read(caller[0][/^[^:]+/]).scan(S){|a,b|h[a]=b};h);v[0].new(*o){n=="#{n}"?n:$t[n.to_s]}.render(a,o[0].try(:[],:locals)||{})}} %w[set  enable  disable  configure  helpers  use  register].map{|m|D.(m){|*_,&b|b.try  :[]}};END{Handler.get("webrick").run(a,Port:4567){|s|$r=s}} %w[params  session].map{|m|D.(m){q.send  m}};a.use  Session::Cookie;a.use  Lock;D.(:before){|&b|a.use  Rack::Config,&b};before{|e|q=Request.new  e;q.params.dup.map{|k,v|params[k.to_sym]=v}}}
2. Konstantin @konstan(nhaase  aka  rkh
5. Sinatra Rack,  Tilt,  Rubinius,  ...
6. “second to K&R, the most lagom technical book I’ve read.” Peter  Cooper  (Ruby  Inside) discount code: AUTHD 50% off ebook ($6.50) 40% OFF PRINT
7. Realtime Rails and Ruby is  in  the  other  room
8. Seriously, you will learn nothing in here at  least  nothing  useful
9. You have been warned
10. I’ve got 99 slides but a meme aint one of them
11. Prepare for strange code slides
12. In the beginning Matz gave us Ruby
13. ·ͭ΋ͱΏ͖ͻΖ
14. http://c2.com/cgi/wiki?WhyWeHateRuby http://wiki.theory.org/ YourLanguageSucks#Ruby_sucks_because: http://www.rubyist.net/~matz/slides/rc2003/index.html
15. Obfuscation and  other  fun  things  you  can  do  with  to  code
16. Until programmers stop acting like obfuscation is morally hazardous, they’re not artists, just kids who don’t want their food to touch. why  the  lucky  s(ff
17. !?!
18. !?! # => false
19. ?:??::??
20. ?:??::??
21. ?:??::?? # => “:”
22. eval \ '51966'+[46,1935634292,32,49,54].pack('clC3')
23. eval \ '51966'+[46,1935634292,32,49,54].pack('clC3') # => “cafe”
24. eval \ '51966'+['.',1935634292, ' ', '1', '6'].pack('ala3') # => “cafe”
25. eval \ '51966'+['.', 'to_s', ' ', '1', '6'].pack('A4') # => “cafe”
26. 51966.to_s(16) # => “cafe”
27. 0xcaFE # => “cafe”
28. enter the heredocs
31. Distraction
34. Yusuke Endoh mamememo.blogspot.com
35. v=0000;eval$s=%q~d=%!^Lcf<LK8, _@7gj*LJ=c5nM)Tp1g0%Xv.,S[<>YoP 4ZojjV)O>qIH1/n[|2yE[>:ieC "%.#% :::##" 97N-A&Kj_K_><wS5rtWk@*a+Y5 yH?b[F^e7C/56j|pmRe+:)B "##% ::##########" O98(Zh)'Iof*nm.,$C5Nyt= PPu01Avw^<IiQ=5$'D-y? "##: ###############" g6`YT+qLw9k^ch|K'),tc 6ygIL8xI#LNz3v}T=4W "# #. .####:#######" lL27FZ0ij)7TQCI)P7u }RT5-iJbbG5P-DHB<. " ##### # :############" R,YvZ_rnv6ky-G+4U' $*are@b4U351Q-ug5 " #######################" 00x8RR%`Om7VDp4M5 PFixrPvl&<p[]1IJ " ############:#### %#####" EGgDt8Lm#;bc4zS^ y]0`_PstfUxOC(q " .#############:##% .## ." /,}.YOIFj(k&q_V zcaAi?]^lCVYp!; " %% .################. #. " ;s="v=%04o;ev"% (;v=(v-($*+[45, ":####: :##############% : " ])[n=0].to_i;)% 360)+"al$s=%q#{ "%######. ######### " ;;"%c"%126+$s<< 126}";d.gsub!(/ "##########. #######% " |\s|".*"/,"");; require"zlib"|| "########### :######. " ;d=d.unpack"C*" d.map{|c|n=(n|| ":#########: .######: . " )*90+(c-2)%91}; e=["%x"%n].pack " :#######% :###### #: " &&"H*";e=Zlib:: Inflate.inflate( " ######% .####% :: " &&e).unpack("b*" )[0];22.times{|y| " ####% %### " ;w=(Math.sqrt(1-( (y*2.0-21)/22)**(; " .###: .#% " ;2))*23).floor;(w* 2-1).times{|x|u=(e+ " %## " )[y*z=360,z]*2;u=u[ 90*x/w+v+90,90/w];s[( " #. " ;y*80)+120-w+x]=(""<< 32<<".:%#")[4*u.count(( " . " ;"0"))/u.size]}};;puts\ s+";_ The Qlobe#{" "*18+ ( "# :#######" ;"Copyright(C).Yusuke End\ oh, 2010")}";exit~;_ The Qlobe Copyright(C).Yusuke Endoh, 2010
36. v=0473;eval$s=%q~d=%!^Lcf<LK8, _@7gj*LJ=c5nM)Tp1g0%Xv.,S[<>YoP 4ZojjV)O>qIH1/n[|2yE[>:ieC "###%.#% ::" 97N-A&Kj_K_><wS5rtWk@*a+Y5 yH?b[F^e7C/56j|pmRe+:)B "#####%##. .:#####" O98(Zh)'Iof*nm.,$C5Nyt= PPu01Avw^<IiQ=5$'D-y? "#####%###: ########" g6`YT+qLw9k^ch|K'),tc 6ygIL8xI#LNz3v}T=4W "%######## #. .####" lL27FZ0ij)7TQCI)P7u }RT5-iJbbG5P-DHB<. " :####### ##### # :###" R,YvZ_rnv6ky-G+4U' $*are@b4U351Q-ug5 " :### : :#############" 00x8RR%`Om7VDp4M5 PFixrPvl&<p[]1IJ " %#... ############:##" EGgDt8Lm#;bc4zS^ y]0`_PstfUxOC(q " .###: %############:##" /,}.YOIFj(k&q_V zcaAi?]^lCVYp!; " :. %% .################" ;s="v=%04o;ev"% (;v=(v-($*+[45, " :####: :##############%" ])[n=0].to_i;)% 360)+"al$s=%q#{ " %######. ######### " ;;"%c"%126+$s<< 126}";d.gsub!(/ " ##########. #######% " |\s|".*"/,"");; require"zlib"|| " ########### :######. " ;d=d.unpack"C*" d.map{|c|n=(n|| " :#########: .######: ." )*90+(c-2)%91}; e=["%x"%n].pack " ########. ######%:#" &&"H*";e=Zlib:: Inflate.inflate( " ######% .####% ::" &&e).unpack("b*" )[0];22.times{|y| " :####. .###: " ;w=(Math.sqrt(1-( (y*2.0-21)/22)**(; " .###: .#% " ;2))*23).floor;(w* 2-1).times{|x|u=(e+ " %## " )[y*z=360,z]*2;u=u[ 90*x/w+v+90,90/w];s[( " #. " ;y*80)+120-w+x]=(""<< 32<<".:%#")[4*u.count(( " : " ;"0"))/u.size]}};;puts\ s+";_ The Qlobe#{" "*18+ ( "#### :####" ;"Copyright(C).Yusuke End\ oh, 2010")}";exit~;_ The Qlobe Copyright(C).Yusuke Endoh, 2010
37. v=0416;eval$s=%q~d=%!^Lcf<LK8, _@7gj*LJ=c5nM)Tp1g0%Xv.,S[<>YoP 4ZojjV)O>qIH1/n[|2yE[>:ieC ".#####%.#% " 97N-A&Kj_K_><wS5rtWk@*a+Y5 yH?b[F^e7C/56j|pmRe+:)B " .#####%##% :" O98(Zh)'Iof*nm.,$C5Nyt= PPu01Avw^<IiQ=5$'D-y? " #####%###: #" g6`YT+qLw9k^ch|K'),tc 6ygIL8xI#LNz3v}T=4W " %######## #." lL27FZ0ij)7TQCI)P7u }RT5-iJbbG5P-DHB<. " :####### ###" R,YvZ_rnv6ky-G+4U' $*are@b4U351Q-ug5 " ###: : ####" 00x8RR%`Om7VDp4M5 PFixrPvl&<p[]1IJ " %#... #####" EGgDt8Lm#;bc4zS^ y]0`_PstfUxOC(q " %### .#####" /,}.YOIFj(k&q_V zcaAi?]^lCVYp!; " :. %% .#####" ;s="v=%04o;ev"% (;v=(v-($*+[45, " :####: :####" ])[n=0].to_i;)% 360)+"al$s=%q#{ " %######. " ;;"%c"%126+$s<< 126}";d.gsub!(/ " ##########. " |\s|".*"/,"");; require"zlib"|| " ########### " ;d=d.unpack"C*" d.map{|c|n=(n|| " :#########: " )*90+(c-2)%91}; e=["%x"%n].pack " :#######% " &&"H*";e=Zlib:: Inflate.inflate( " ######% " &&e).unpack("b*" )[0];22.times{|y| " ####% " ;w=(Math.sqrt(1-( (y*2.0-21)/22)**(; " .###: " ;2))*23).floor;(w* 2-1).times{|x|u=(e+ " %## " )[y*z=360,z]*2;u=u[ 90*x/w+v+90,90/w];s[( " #. " ;y*80)+120-w+x]=(""<< 32<<".:%#")[4*u.count(( " . " ;"0"))/u.size]}};;puts\ s+";_ The Qlobe#{" "*18+ ( " .##### :#" ;"Copyright(C).Yusuke End\ oh, 2010")}";exit~;_ The Qlobe Copyright(C).Yusuke Endoh, 2010
38. v=0341;eval$s=%q~d=%!^Lcf<LK8, _@7gj*LJ=c5nM)Tp1g0%Xv.,S[<>YoP 4ZojjV)O>qIH1/n[|2yE[>:ieC "#% .#####%." 97N-A&Kj_K_><wS5rtWk@*a+Y5 yH?b[F^e7C/56j|pmRe+:)B " : %#####%##. " O98(Zh)'Iof*nm.,$C5Nyt= PPu01Avw^<IiQ=5$'D-y? " #####%###: " g6`YT+qLw9k^ch|K'),tc 6ygIL8xI#LNz3v}T=4W " %######## " lL27FZ0ij)7TQCI)P7u }RT5-iJbbG5P-DHB<. " :####### " R,YvZ_rnv6ky-G+4U' $*are@b4U351Q-ug5 " :### : " 00x8RR%`Om7VDp4M5 PFixrPvl&<p[]1IJ " %#... " EGgDt8Lm#;bc4zS^ y]0`_PstfUxOC(q " .###: " /,}.YOIFj(k&q_V zcaAi?]^lCVYp!; " :. %% " ;s="v=%04o;ev"% (;v=(v-($*+[45, " :####: " ])[n=0].to_i;)% 360)+"al$s=%q#{ " %######. " ;;"%c"%126+$s<< 126}";d.gsub!(/ " ##########" |\s|".*"/,"");; require"zlib"|| "% ##########" ;d=d.unpack"C*" d.map{|c|n=(n|| " :#########" )*90+(c-2)%91}; e=["%x"%n].pack " ########" &&"H*";e=Zlib:: Inflate.inflate( "#. ######%" &&e).unpack("b*" )[0];22.times{|y| "## :####. " ;w=(Math.sqrt(1-( (y*2.0-21)/22)**(; "#. .###: " ;2))*23).floor;(w* 2-1).times{|x|u=(e+ "% . %## " )[y*z=360,z]*2;u=u[ 90*x/w+v+90,90/w];s[( " . #. " ;y*80)+120-w+x]=(""<< 32<<".:%#")[4*u.count(( " : " ;"0"))/u.size]}};;puts\ s+";_ The Qlobe#{" "*18+ ( "#. .##### " ;"Copyright(C).Yusuke End\ oh, 2010")}";exit~;_ The Qlobe Copyright(C).Yusuke Endoh, 2010
39. v=0264;eval$s=%q~d=%!^Lcf<LK8, _@7gj*LJ=c5nM)Tp1g0%Xv.,S[<>YoP 4ZojjV)O>qIH1/n[|2yE[>:ieC "####% .####" 97N-A&Kj_K_><wS5rtWk@*a+Y5 yH?b[F^e7C/56j|pmRe+:)B "##### : .#####" O98(Zh)'Iof*nm.,$C5Nyt= PPu01Avw^<IiQ=5$'D-y? "######. #####%" g6`YT+qLw9k^ch|K'),tc 6ygIL8xI#LNz3v}T=4W "####: . %######" lL27FZ0ij)7TQCI)P7u }RT5-iJbbG5P-DHB<. "#### . :######" R,YvZ_rnv6ky-G+4U' $*are@b4U351Q-ug5 "####% ###: " 00x8RR%`Om7VDp4M5 PFixrPvl&<p[]1IJ "### %#..." EGgDt8Lm#;bc4zS^ y]0`_PstfUxOC(q "## .. %###" /,}.YOIFj(k&q_V zcaAi?]^lCVYp!; ":#. . :" ;s="v=%04o;ev"% (;v=(v-($*+[45, ": : : " ])[n=0].to_i;)% 360)+"al$s=%q#{ "% %#: " ;;"%c"%126+$s<< 126}";d.gsub!(/ "#::#.: %#% " |\s|".*"/,"");; require"zlib"|| " : :#% " ;d=d.unpack"C*" d.map{|c|n=(n|| " :% : " )*90+(c-2)%91}; e=["%x"%n].pack " %###%% " &&"H*";e=Zlib:: Inflate.inflate( " ########. " &&e).unpack("b*" )[0];22.times{|y| " ########. " ;w=(Math.sqrt(1-( (y*2.0-21)/22)**(; " ##:%###. " ;2))*23).floor;(w* 2-1).times{|x|u=(e+ " %% . " )[y*z=360,z]*2;u=u[ 90*x/w+v+90,90/w];s[( " . " ;y*80)+120-w+x]=(""<< 32<<".:%#")[4*u.count(( " " ;"0"))/u.size]}};;puts\ s+";_ The Qlobe#{" "*18+ ( "####. .###" ;"Copyright(C).Yusuke End\ oh, 2010")}";exit~;_ The Qlobe Copyright(C).Yusuke Endoh, 2010
40. v=0207;eval$s=%q~d=%!^Lcf<LK8, _@7gj*LJ=c5nM)Tp1g0%Xv.,S[<>YoP 4ZojjV)O>qIH1/n[|2yE[>:ieC "#######% .#" 97N-A&Kj_K_><wS5rtWk@*a+Y5 yH?b[F^e7C/56j|pmRe+:)B "##########: : " O98(Zh)'Iof*nm.,$C5Nyt= PPu01Avw^<IiQ=5$'D-y? "#############. " g6`YT+qLw9k^ch|K'),tc 6ygIL8xI#LNz3v}T=4W "############: . " lL27FZ0ij)7TQCI)P7u }RT5-iJbbG5P-DHB<. "############# . " R,YvZ_rnv6ky-G+4U' $*are@b4U351Q-ug5 "############## " 00x8RR%`Om7VDp4M5 PFixrPvl&<p[]1IJ "# %######### " EGgDt8Lm#;bc4zS^ y]0`_PstfUxOC(q " %#: %##: : " /,}.YOIFj(k&q_V zcaAi?]^lCVYp!; " #. .:#. . " ;s="v=%04o;ev"% (;v=(v-($*+[45, " : : : : " ])[n=0].to_i;)% 360)+"al$s=%q#{ " :% %#: " ;;"%c"%126+$s<< 126}";d.gsub!(/ " #::#.: %#% " |\s|".*"/,"");; require"zlib"|| " : :#% " ;d=d.unpack"C*" d.map{|c|n=(n|| " :% : " )*90+(c-2)%91}; e=["%x"%n].pack " .###%# " &&"H*";e=Zlib:: Inflate.inflate( " ########. " &&e).unpack("b*" )[0];22.times{|y| " :######## " ;w=(Math.sqrt(1-( (y*2.0-21)/22)**(; " ##:%###. " ;2))*23).floor;(w* 2-1).times{|x|u=(e+ " %% . " )[y*z=360,z]*2;u=u[ 90*x/w+v+90,90/w];s[( " . " ;y*80)+120-w+x]=(""<< 32<<".:%#")[4*u.count(( " " ;"0"))/u.size]}};;puts\ s+";_ The Qlobe#{" "*18+ ( "#######. ." ;"Copyright(C).Yusuke End\ oh, 2010")}";exit~;_ The Qlobe Copyright(C).Yusuke Endoh, 2010
41. v=0132;eval$s=%q~d=%!^Lcf<LK8, _@7gj*LJ=c5nM)Tp1g0%Xv.,S[<>YoP 4ZojjV)O>qIH1/n[|2yE[>:ieC ":::#######%" 97N-A&Kj_K_><wS5rtWk@*a+Y5 yH?b[F^e7C/56j|pmRe+:)B "################ : " O98(Zh)'Iof*nm.,$C5Nyt= PPu01Avw^<IiQ=5$'D-y? "####################. " g6`YT+qLw9k^ch|K'),tc 6ygIL8xI#LNz3v}T=4W " .####:############: . " lL27FZ0ij)7TQCI)P7u }RT5-iJbbG5P-DHB<. "# # :################# . " R,YvZ_rnv6ky-G+4U' $*are@b4U351Q-ug5 "#######################% " 00x8RR%`Om7VDp4M5 PFixrPvl&<p[]1IJ "######:#### %######### " EGgDt8Lm#;bc4zS^ y]0`_PstfUxOC(q "#######:##% .## .### .. " /,}.YOIFj(k&q_V zcaAi?]^lCVYp!; "##########. #. .:#. . " ;s="v=%04o;ev"% (;v=(v-($*+[45, "#########% : : : : " ])[n=0].to_i;)% 360)+"al$s=%q#{ "######### :% %#: " ;;"%c"%126+$s<< 126}";d.gsub!(/ "#######% #::#.: %#% " |\s|".*"/,"");; require"zlib"|| ":######. : :#% " ;d=d.unpack"C*" d.map{|c|n=(n|| ".######: . :% : " )*90+(c-2)%91}; e=["%x"%n].pack ":###### #: %###%% " &&"H*";e=Zlib:: Inflate.inflate( ".####% :: ########. " &&e).unpack("b*" )[0];22.times{|y| " %### ########. " ;w=(Math.sqrt(1-( (y*2.0-21)/22)**(; " .#% ##:%###. " ;2))*23).floor;(w* 2-1).times{|x|u=(e+ " %% . " )[y*z=360,z]*2;u=u[ 90*x/w+v+90,90/w];s[( " . " ;y*80)+120-w+x]=(""<< 32<<".:%#")[4*u.count(( " " ;"0"))/u.size]}};;puts\ s+";_ The Qlobe#{" "*18+ ( "##########." ;"Copyright(C).Yusuke End\ oh, 2010")}";exit~;_ The Qlobe Copyright(C).Yusuke Endoh, 2010
42. v=0055;eval$s=%q~d=%!^Lcf<LK8, _@7gj*LJ=c5nM)Tp1g0%Xv.,S[<>YoP 4ZojjV)O>qIH1/n[|2yE[>:ieC "% :::#####" 97N-A&Kj_K_><wS5rtWk@*a+Y5 yH?b[F^e7C/56j|pmRe+:)B " .:################" O98(Zh)'Iof*nm.,$C5Nyt= PPu01Avw^<IiQ=5$'D-y? " ######################" g6`YT+qLw9k^ch|K'),tc 6ygIL8xI#LNz3v}T=4W " #. .####:############: " lL27FZ0ij)7TQCI)P7u }RT5-iJbbG5P-DHB<. " ##### # :################# . " R,YvZ_rnv6ky-G+4U' $*are@b4U351Q-ug5 " :############################ " 00x8RR%`Om7VDp4M5 PFixrPvl&<p[]1IJ " ############:#### %######### " EGgDt8Lm#;bc4zS^ y]0`_PstfUxOC(q " %############:### %#: %##: : " /,}.YOIFj(k&q_V zcaAi?]^lCVYp!; " .################. #. .:#. . " ;s="v=%04o;ev"% (;v=(v-($*+[45, " :##############% : : : : " ])[n=0].to_i;)% 360)+"al$s=%q#{ " ######### :% %#: " ;;"%c"%126+$s<< 126}";d.gsub!(/ " #######% #::#.: %#" |\s|".*"/,"");; require"zlib"|| " :######. : :" ;d=d.unpack"C*" d.map{|c|n=(n|| " .######: . :% " )*90+(c-2)%91}; e=["%x"%n].pack " ######%:# .###%" &&"H*";e=Zlib:: Inflate.inflate( " .####% :: ######" &&e).unpack("b*" )[0];22.times{|y| " .###: :#####" ;w=(Math.sqrt(1-( (y*2.0-21)/22)**(; " .#% ##:%#" ;2))*23).floor;(w* 2-1).times{|x|u=(e+ " " )[y*z=360,z]*2;u=u[ 90*x/w+v+90,90/w];s[( " " ;y*80)+120-w+x]=(""<< 32<<".:%#")[4*u.count(( " " ;"0"))/u.size]}};;puts\ s+";_ The Qlobe#{" "*18+ ( ":##########" ;"Copyright(C).Yusuke End\ oh, 2010")}";exit~;_ The Qlobe Copyright(C).Yusuke Endoh, 2010
43. v=0000;eval$s=%q~d=%!^Lcf<LK8, _@7gj*LJ=c5nM)Tp1g0%Xv.,S[<>YoP 4ZojjV)O>qIH1/n[|2yE[>:ieC "%.#% :::##" 97N-A&Kj_K_><wS5rtWk@*a+Y5 yH?b[F^e7C/56j|pmRe+:)B "##% ::##########" O98(Zh)'Iof*nm.,$C5Nyt= PPu01Avw^<IiQ=5$'D-y? "##: ###############" g6`YT+qLw9k^ch|K'),tc 6ygIL8xI#LNz3v}T=4W "# #. .####:#######" lL27FZ0ij)7TQCI)P7u }RT5-iJbbG5P-DHB<. " ##### # :############" R,YvZ_rnv6ky-G+4U' $*are@b4U351Q-ug5 " #######################" 00x8RR%`Om7VDp4M5 PFixrPvl&<p[]1IJ " ############:#### %#####" EGgDt8Lm#;bc4zS^ y]0`_PstfUxOC(q " .#############:##% .## ." /,}.YOIFj(k&q_V zcaAi?]^lCVYp!; " %% .################. #. " ;s="v=%04o;ev"% (;v=(v-($*+[45, ":####: :##############% : " ])[n=0].to_i;)% 360)+"al$s=%q#{ "%######. ######### " ;;"%c"%126+$s<< 126}";d.gsub!(/ "##########. #######% " |\s|".*"/,"");; require"zlib"|| "########### :######. " ;d=d.unpack"C*" d.map{|c|n=(n|| ":#########: .######: . " )*90+(c-2)%91}; e=["%x"%n].pack " :#######% :###### #: " &&"H*";e=Zlib:: Inflate.inflate( " ######% .####% :: " &&e).unpack("b*" )[0];22.times{|y| " ####% %### " ;w=(Math.sqrt(1-( (y*2.0-21)/22)**(; " .###: .#% " ;2))*23).floor;(w* 2-1).times{|x|u=(e+ " %## " )[y*z=360,z]*2;u=u[ 90*x/w+v+90,90/w];s[( " #. " ;y*80)+120-w+x]=(""<< 32<<".:%#")[4*u.count(( " . " ;"0"))/u.size]}};;puts\ s+";_ The Qlobe#{" "*18+ ( "# :#######" ;"Copyright(C).Yusuke End\ oh, 2010")}";exit~;_ The Qlobe Copyright(C).Yusuke Endoh, 2010
44. Flip Flops Ruby  at  its  best
49. 3 4 5
53. 3 4 5 ...
54. Ruby issue #5400 Can  we  please  remove  flip  flops?
55. “Nobody knows them. Nobody uses them. Let's just get rid of flip-flops, shall we?” Magnus  Holm
56. “Hello, I'm one of the few users of flip-flop.” Yusuke  Endoh
58. “Sorry for off-topic. I have no objection to deletion.” Yusuke  Endoh
60. lib/compiler/ast/control_flow.rb
61. github.com / rkh / almost-sinatra more  popular  than  a  pair  of  socks
62. As little code as possible just  six  lines
63. Obfuscation was never the goal just  a  by-­‐product
64. %w.rack  )lt  INT  TERM..map{|l|trap(l){$r.stop}rescue  require  l};puts  "==  Almost  Sinatra/No  Version  has  taken  the  stage  on  4567  for  development  with  backup  from  Webrick" $n=Module.new{extend  Rack;a,D,S,q=Builder.new,Object.method(:define_method),/@@  *([^\n]+)\n(((?!@@)[^\n]*\n)*)/m %w[get  post  put  delete].map{|m|D.(m){|u,&b|a.map(u){run-­‐>(e){[200,{"Content-­‐Type"=>"text/html"},[a.instance_eval(&b)]]}}}} Tilt.mappings.map{|k,v|D.(k){|n,*o|$t||=(h={};File.read(caller[0][/^[^:]+/]).scan(S){|a,b|h[a]=b};h);v[0].new(*o){n=="#{n}"?n:$t[n.to_s]}.render(a,o[0].try(:[],:locals)||{})}} %w[set  enable  disable  configure  helpers  use  register].map{|m|D.(m){|*_,&b|b.try  :[]}};END{Handler.get("webrick").run(a,Port:4567){|s|$r=s}} %w[params  session].map{|m|D.(m){q.send  m}};a.use  Session::Cookie;a.use  Lock;D.(:before){|&b|a.use  Rack::Config,&b};before{|e|q=Request.new  e;q.params.dup.map{|k,v|params[k.to_sym]=v}}} the code
65. What works?
70. http://blog.udzura.jp/2011/12/02/ruby-advent- calendar-2011-almost-sinatra/ http://wtf.tw/etc/almost-sinatra.txt http://rubysource.com/code-safari-almost-sinatra- almost-readable/ https://gist.github.com/udzura/1403717
71. Simplify and compress
80. %w.rack  )lt  backports  INT  TERM..map{|l|trap(l){$r.stop}rescue  require  l} $n=Sinatra=Module.new{extend  Rack;a,D,S,$p,q,Applica)on=Builder.new,Object.method(:define_method),/@@  *([^\n]+)\n(((?!@@)[^\n]*\n)*)/m,4567,a %w[get  post  put  delete].map{|m|D.(m){|u,&b|a.map(u){run-­‐>(e){[200,{"Content-­‐Type"=>"text/html"},[a.instance_eval(&b)]]}}}} Tilt.mappings.map{|k,v|D.(k){|n,*o|$t||=(h={};File.read(caller[0][/^[^:]+/]).scan(S){|a,b|h[a]=b};h);v[0].new(*o){n.to_s==n  ?n:$t[n.to_s]}.render(a,o[0].try(:[],:locals)||{})}} %w[set  enable  disable  configure  helpers  use  register].map{|m|D.(m){|*_,&b|b.try  :[]}};END{Handler.get("webrick").run(a,Port:$p){|s|$r=s}} %w[params  session].map{|m|D.(m){q.send  m}};a.use  Session::Cookie;a.use  Lock D.(:before){|&b|a.use  Rack::Config,&b};before{|e|q=Request.new  e;q.params.dup.map{|k,v|params[k.to_sym]=v}}} puts  "==  almost  #$n/No  Version  has  taken  the  stage  on  #$p  for  development  with  backup  from  Webrick" the code
81. Fake it ‘till you make it
82. %w.rack  )lt  backports  INT  TERM..map{|l|trap(l){$r.stop}rescue  require  l} $n=Sinatra=Module.new{ extend  Rack; a,D,S,$p,q,Applica)on =Builder.new, Object.method(:define_method),/@@  *([^\n]+)\n(((?!@@)[^\n]*\n)*)/m,4567,a %w[ get  post  put  delete].map{|m|D.(m){|u,&b| a.map(u){run-­‐>(e){ [200,{"Content-­‐Type"=>"text/html"}, [a.instance_eval(&b)]]}}}} Tilt.mappings.map{|k,v|D.(k){|n,*o|$t||=(h={};File.read(caller[0][/^[^:]+/]).scan(S){|a,b|h[a]=b};h);v[0].new(*o){n.to_s==n  ?n:$t[n.to_s]}.render(a,o[0].try(:[],:locals)||{})}} %w[set  enable  disable  configure  helpers  use  register].map{|m|D.(m){|*_,&b|b.try  :[]}};END{Handler.get("webrick").run(a,Port:$p){|s|$r=s}} %w[params  session].map{|m|D.(m){q.send  m}}; a.use  Session::Cookie;a.use  Lock D.(:before){|&b|a.use  Rack::Config,&b};before{|e|q=Request.new  e;q.params.dup.map{|k,v|params[k.to_sym]=v}}} puts  "==  almost  #$n/No  Version  has  taken  the  stage  on  #$p  for  development  with  backup  from  Webrick"
83. %w.rack  )lt  backports  INT  TERM..map{|l|trap(l){$r.stop}rescue  require  l} $n=Sinatra=Module.new{extend  Rack;a, D,S,$p,q,Applica)on =Builder.new, Object.method(:define_method) ,/@@  *([^\n]+)\n(((?!@@)[^\n]*\n)*)/m,4567,a %w [get  post  put  delete].map{|m| D.(m){|u,&b|a.map(u){run-­‐>(e){[200,{"Content-­‐Type"=>"text/html"},[a.instance_eval(&b)]]}}}} Tilt.mappings.map{|k,v| D.(k){|n,*o| $t||=(h={};File.read(caller[0][/^[^:]+/]).scan(S){|a,b|h[a]=b};h);v[0].new(*o){n.to_s==n  ?n:$t[n.to_s]}.render(a,o[0].try(:[],:locals)||{})}} %w[ set  enable  disable  configure  helpers  use  register]. map{|m| D.(m){|*_,&b|b.try  :[]}};END{Handler.get("webrick").run(a,Port:$p){|s|$r=s}} %w[ params  session].map{|m| D.(m){q.send  m}};a.use  Session::Cookie;a.use  Lock D.(:before){|&b|a.use  Rack::Config,&b}; before{|e|q=Request.new  e;q.params.dup.map{|k,v|params[k.to_sym]=v}}} puts  "==  almost  #$n/No  Version  has  taken  the  stage  on  #$p  for  development  with  backup  from  Webrick"
84. %w.rack  )lt  backports  INT  TERM..map{|l|trap(l){$r.stop}rescue  require  l} $n=Sinatra=Module.new{extend  Rack;a,D, S,$p,q,Applica)on =Builder.new,Object.method(:define_method), /@@  *([^\n]+)\n(((?!@@)[^\n]*\n)*)/m,4567,a %w[get  post  put  delete].map{|m|D.(m){|u,&b|a.map(u){run-­‐>(e){[200,{"Content-­‐Type"=>"text/html"},[a.instance_eval(&b)]]}}}} Tilt.mappings.map{|k,v|D.(k){|n,*o| $t||=(h={};File.read(caller[0][/^[^:]+/]) .scan(S){|a,b|h[a]=b};h); v[0].new(*o){n.to_s==n  ?n:$t[n.to_s]}. render(a,o[0].try(:[],:locals)||{})}} %w[set  enable  disable  configure  helpers  use  register].map{|m|D.(m){|*_,&b|b.try  :[]}};END{Handler.get("webrick").run(a,Port:$p){|s|$r=s}} %w[params  session].map{|m|D.(m){q.send  m}};a.use  Session::Cookie;a.use  Lock D.(:before){|&b|a.use  Rack::Config,&b};before{|e|q=Request.new  e;q.params.dup.map{|k,v|params[k.to_sym]=v}}} puts  "==  almost  #$n/No  Version  has  taken  the  stage  on  #$p  for  development  with  backup  from  Webrick"
85. %w.rack  )lt  backports  INT  TERM..map{|l|trap(l){$r.stop}rescue  require  l} $n=Sinatra=Module.new {extend  Rack; a,D,S, $p,q,Applica)on =Builder.new, Object.method(:define_method),/@@  *([^\n]+)\n(((?!@@)[^\n]*\n)*)/m, 4567,a %w[get  post  put  delete].map{|m|D.(m){|u,&b|a.map(u){run-­‐>(e){[200,{"Content-­‐Type"=>"text/html"},[a.instance_eval(&b)]]}}}} Tilt.mappings.map{|k,v|D.(k){|n,*o|$t||=(h={};File.read(caller[0][/^[^:]+/]).scan(S){|a,b|h[a]=b};h);v[0]. new(*o){n.to_s==n  ?n:$t[n.to_s]}.render(a,o[0].try(:[],:locals)||{})}} %w[set  enable  disable  configure  helpers  use  register].map{|m|D.(m){|*_,&b|b.try  :[]}}; END{Handler.get("webrick"). run(a,Port:$p){|s|$r=s}} %w[params  session].map{|m|D.(m){q.send  m}};a.use  Session::Cookie;a.use  Lock D.(:before){|&b|a.use  Rack::Config,&b};before{|e|q=Request.new  e;q.params.dup.map{|k,v|params[k.to_sym]=v}}} puts  "==  almost  #$n/No  Version  has  taken  the  stage  on #$p  for  development  with  backup  from  Webrick"
86. It’s all about fun!
87. “From now on, I’ll start quoting myself.” Konstan(n  Haase
88. “If your app does not run with Almost Sinatra, please open a Sinatra issue.” Konstan(n  Haase
89. “Versions are to Software what Subversion is to Git.” Konstan(n  Haase
90. “don't include tests. tests just bloat the code base. just commit, the users will complain if you break anything.” Konstan(n  Haase
91. What else?
92. Almost Rack Proof  that  Rack  is  simpler  than  Sinatra. Lines  must  be  the  same  length,  no  more  than  120   characters  per  line.  No  more  than  three  lines  of  code.
95. Almost Rack Protection Protects  you  against  most  opportunisIc  aJacks. Goes  well  with  almost-­‐sinatra,  almost-­‐rack  or  Ruby  on   Rails.
96. SQL injection NoSQL injection Cross Site Scripting Broken Authentication / Session Management Insecure Direct Object References Login spoofing Cross Site Request Forgery Security Misconfiguration Insecure Cryptographic Storage Failure to Restrict URL Access Race condition (except in your Rack handler) Insufficient Transport Layer Protection Unvalidated Redirects and Forwards Windows Metafile vulnerability Password cracking Malicious File Execution Reflection attack Mass-Assignment Bugs CRIME Arbitrary code execution Buffer overflow Metasploit Data breach Frame injection Y2K bug Timing Attacks Remote file inclusion Some DoS attacks Off-by-one error Shoulder surfing Most other CVEs
97. Security is no joke clean,  readable  code
99. Simply reject every Request problem  solved
100. Conclusion
101. Seriously?
102. Thank You @konstan(nhaase