stockholm/lass/2configs/go.nix

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2018-04-28 15:26:43 +00:00
{ config, lib, pkgs, ... }:
{
krebs.go = {
enable = true;
};
services.nginx = {
enable = true;
virtualHosts.go = {
locations."/".extraConfig = ''
proxy_set_header Host go.lassul.us;
proxy_pass http://localhost:1337;
'';
serverAliases = [
"go.lassul.us"
];
};
};
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krebs.htgen.go = {
port = 3333;
script = ''. ${pkgs.writeDash "go" ''
find_item() {
if test ''${#1} -ge 7; then
set -- "$(find "$STATEDIR/items" -mindepth 1 -maxdepth 1 \
-regex "$STATEDIR/items/$1[0-9A-Za-z]*$")"
if test -n "$1" && test $(echo "$1" | wc -l) = 1; then
echo "$1"
return 0
fi
fi
return 1
}
STATEDIR=$HOME
mkdir -p $STATEDIR/items
case "$Method $Request_URI" in
"GET /"*)
if item=$(find_item ''${Request_URI#/}); then
uri=$(cat "$item")
printf 'HTTP/1.1 302 Found\r\n'
printf 'Content-Type: text/plain\r\n'
printf 'Connection: closed\r\n'
printf 'Location: %s\r\n' "$uri"
printf '\r\n'
exit
fi
;;
"POST /") #{ "uri": "http://nixos.org" }
uri=$(mktemp -t htgen.$$.content.XXXXXXXX)
trap "rm $uri >&2" EXIT
head -c $req_content_length \
| grep -Eo 'https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)' \
> $uri
sha256=$(sha256sum -b $uri | cut -d\ -f1)
base32=$(${pkgs.nixStable}/bin/nix-hash --to-base32 --type sha256 $sha256)
item=$STATEDIR/items/$base32
ref=http://$req_host/$base32
if ! test -e $item; then
mkdir -v -p $STATEDIR/items >&2
cp -v $uri $item >&2
fi
base32short=$(echo $base32 | cut -b-7)
if item=$(find_item $base32short); then
ref=$(echo "http://$req_host/$base32short")
fi
printf 'HTTP/1.1 200 OK\r\n'
printf 'Content-Type: text/plain; charset=UTF-8\r\n'
printf 'Connection: close\r\n'
printf '\r\n'
printf '%s\n' "$ref"
exit
;;
esac
''}'';
};
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}