| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>this is a fin title · CodePen</title> | |
| <style> |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>this is a fin title · CodePen</title> | |
| <style> |
| class Slug | |
| def self.substituion | |
| { | |
| '0' => 'c', | |
| '1' => '0', | |
| '2' => 'd', | |
| '3' => '3', | |
| '4' => 'p', | |
| '5' => 'e', |
###The Problem:
How do you create URLs that are short, easy to remember, and unique? Also, how do you store 60M rows so they are easily accessable?
###Getting the data
Get all 5 letter permutations for the letters between a and z as well as A through F.
###The Source
| grant { | |
| permission java.lang.RuntimePermission "accessDeclaredMembers"; | |
| permission java.util.PropertyPermission "jruby.*", "read"; | |
| permission java.util.PropertyPermission "jruby.*", "write"; | |
| permission java.util.PropertyPermission "java.io.tmpdir", "read"; | |
| permission java.util.PropertyPermission "*", "read"; | |
| permission java.util.PropertyPermission "*", "write"; | |
| permission java.lang.RuntimePermission "getClassLoader"; | |
| permission java.lang.RuntimePermission "getProtectionDomain"; |
| require 'haml' | |
| require 'java' | |
| class JRubySecurityManager < java.lang.SecurityManager | |
| def checkPermission(perm) | |
| puts perm.inspect | |
| #puts perm | |
| end | |
| #def checkWrite(f) |
###Background
My table looks like this:
id (int), hash_value (text)
with the following settings:
InnoDB
utf8
| 1c1 | |
| < File.stuff | |
| --- | |
| > stuff |
| eval ("File.read('/tmp/blah.rb')") | |
| eval("File.read('/tmp/blah.rb')") | |
| eval "File.read('/tmp/blah.rb')" | |
| x = "Fil"+"e.read('/tmp/blah.rb'" | |
| eval(x) | |
| eval (x) | |
| eval x | |
| eval x |
| mysql> show variables like 'collation%'; | |
| +----------------------+-------------------+ | |
| | Variable_name | Value | | |
| +----------------------+-------------------+ | |
| | collation_connection | latin1_swedish_ci | | |
| | collation_database | latin1_swedish_ci | | |
| | collation_server | latin1_swedish_ci | | |
| +----------------------+-------------------+ | |
| 3 rows in set (0.00 sec) |