119 lines
1.8 KiB
Bash
Executable File
119 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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dir="$( cd "$( dirname "$0" )" && pwd )"
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touch $dir/lockfile
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if [ -z "$1" ]; then
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echo "invalid args"
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exit
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fi
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if [ -z "$2" ]; then
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echo "invalid args"
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exit
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fi
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lang=$1
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epoch=$(date +%s%N)
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basepath="/var/lib/lxc/piston/rootfs"
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filepath="/tmp/$epoch/code.code"
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argpath="/tmp/$epoch/args.args"
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arg=$(basename $argpath)
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# write arg file
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mkdir -p $basepath/tmp/$epoch
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chmod 777 $basepath/tmp/$epoch
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cat $2 > $basepath$filepath
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echo "${@:3}" > $basepath$argpath
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# process incrementor
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exec 200>$dir/lockfile
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flock -x 200
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oldinc=$(cat $dir/i | awk '{$1=$1};1')
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newinc=$(expr $oldinc + 1)
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if (( newinc >= 151 )); then
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newinc=1
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echo 1 > $dir/i
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else
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echo $newinc > $dir/i
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fi
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exec 200>&-
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bin=
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case "$lang" in
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"python2")
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bin=python2
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;;
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"python" | "python3")
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bin=python3
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;;
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"ruby")
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bin=ruby
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;;
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"javascript" | "js" | "node")
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bin=node
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;;
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"c")
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bin=c
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;;
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"cpp" | "c++")
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bin=cpp
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;;
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"go")
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bin=go
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;;
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"c#" | "csharp" | "cs")
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bin=csharp
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;;
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"r")
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bin=r
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;;
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"php")
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bin=php
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;;
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"nasm" | "asm")
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bin=nasm
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;;
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"java")
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bin=java
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;;
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"swift")
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bin=swift
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;;
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"brainfuck" | "bf")
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bin=brainfuck
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;;
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"rust")
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bin=rust
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;;
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"elisp" | "el")
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bin=emacs
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;;
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"bash")
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bin=bash
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;;
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"typescript" | "ts")
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bin=typescript
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;;
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*)
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echo "invalid language"
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exit
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esac
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# runner
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timeout -s KILL 10 \
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lxc-attach -n piston -- \
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/bin/bash -c "\
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PATH=/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin \
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bash /exec/$bin $newinc $epoch 2>&1 | head -c 65536"
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# process janitor
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lxc-attach -n piston -- \
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/bin/bash -c "\
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for i in {1..100}; do pkill -u runner$newinc --signal SIGKILL; done ;\
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find /tmp -user runner$newinc -exec /bin/rm -rf {} \;\
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" > /dev/null 2>&1 &
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rm -rf $basepath/tmp/$epoch
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