Sandro Kalbermatter kalsan
kalsan
/ method_accessible_hash.rb
Last active
March 1, 2023 14:12
MethodAccessibleHash, a possible replacement for OpenStruct
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| # OpenStruct has caveats and security problems and even leads to a rubocop offense: | |
| # https://ruby-doc.org/stdlib-3.1.0/libdoc/ostruct/rdoc/OpenStruct.html#class-OpenStruct-label-Caveats | |
| # https://msp-greg.github.io/rubocop/RuboCop/Cop/Style/OpenStructUse.html | |
| # | |
| # It's time to replace it. The feature I loved most about OpenStruct was being able to retrieve | |
| # values by calling a method instead of having to use hash access syntax. | |
| # The recommended way to go is Struct, but it is much more cumbersome than OpenStruct was. | |
| # So here's MethodAccessibleHash that allows to do that, but without OpenStruct's security problems. | |
| # | |
| # This revision adds writers, direct creation from Hash, as well as enhanced merging. |
kalsan
/ nginx-location-proxy_pass-and-slashes.txt
Last active
October 2, 2020 15:01
Examples demonstrating how Nginx treats slashes in `location` and `proxy_pass` statements
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| How Nginx treats slashes in `location` and `proxy_pass` statements: | |
| Base URL: https://www.my.web.site/pre/fix/page.html | |
| Our decuced rules, apply for each block A-C: | |
| 1: Location is passed on without change | |
| 2: Location is removed, '/' is added | |
| 3: Location is removed, 'pre/fix' is added | |
| 4: Location is removed, 'pre/fix/' is added |
kalsan
/ interruptable-idle.bash
Created
June 7, 2020 16:01
A small bash script that does nothing but can be interrupted quickly with SIGTERM. Great as an ENTRYPOINT to keep a Docker container running while developing / debugging.
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| #!/bin/bash | |
| pid= | |
| trap '[[ $pid ]] && kill "$pid"' EXIT | |
| sleep infinity & pid=$! | |
| wait | |
| pid= |
kalsan
/ proof_class_attribute_not_threadsafe.rb
Created
October 11, 2016 08:23
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| # This file demonstrates that attributes created by class_attribute (in Rails' ActiveSupport) are not thread-safe. | |
| # On my system, the test fails sometimes when setting count to 1_000 and always with a count of 10_000. | |
| # Expected exception: NameError: Undefined method setting for 'BugTest::MyClass' | |
| # Note: Occurs on jruby only. | |
| # See issue https://github.com/rails/rails/issues/26758 | |
| begin | |
| require 'bundler/inline' | |
| rescue LoadError => e | |
| $stderr.puts 'Bundler version 1.10 or later is required. Please update your Bundler' |