The elixir-captcha from davidqhr

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This is a Elixir lib for generating captcha. It drawing captcha image with C code. No dependencies.

License: MIT License

Makefile 0.67% Elixir 8.87% C 90.47%

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elixir-captcha's Issues

Captcha.get() can fail due to Port.open message split

This thing drives me nuts. The same Dockerfile compiles okay locally, but the gives me the following when compiled by CI remotely.

In short, Port.open for some unknown reason could return two messages instead of one.

Erlang/OTP 20 [erts-9.3.3.3] [source] [64-bit] [smp:1:1] [ds:1:1:10] [async-threads:10] [hipe] [kernel-poll:false]             

Interactive Elixir (1.6.6) - press Ctrl+C to exit (type h() ENTER for help)
iex(xxxx@127.0.0.1)3> Port.open({:spawn, Path.join(:code.priv_dir(:captcha), "captcha")}, [:binary])         
#Port<0.7418>
iex(xxxx@127.0.0.1)4> flush                                                                         
{#Port<0.7418>, {:data, "upadm"}}
{#Port<0.7418>,
 {:data,
  <<71, 73, 70, 56, 57, 97, 200, 0, 70, 0, 131, 0, 0, 233, 30, 99, 233, 30, 99,
    233, 30, 99, 233, 30, 99, 233, 30, 99, 233, 30, 99, 233, 30, 99, 233, 30,
    99, 233, 30, 99, 233, 30, 99, 233, 30, 99, ...>>}}

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