78 lines
1.9 KiB
Nix
78 lines
1.9 KiB
Nix
{pkgs, ...}:
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with import <stockholm/lib>;
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let
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secret = (import <secrets/elchos-token.nix>);
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in {
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systemd.services.elchos-irctoken2 = {
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startAt = "*:0/5";
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serviceConfig = {
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RuntimeMaxSec = "20";
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};
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script = ''
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set -euf
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now=$(date -u +%Y-%m-%dT%H:%M)
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sleep 5
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sec=$(cat /tmp/irc-secret)
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message="The current secret is $sec"
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echo "$message"
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LOGNAME=sec-announcer
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HOSTNAME=$(${pkgs.systemd}/bin/hostnamectl --transient)
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IRC_SERVER=irc.hackint.org
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IRC_PORT=6667
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IRC_NICK=$HOSTNAME-$$
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IRC_CHANNEL='#eloop'
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export IRC_CHANNEL # for privmsg_cat
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echo2() { echo "$*"; echo "$*" >&2; }
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privmsg_cat() { ${pkgs.gawk}/bin/awk '{ print "PRIVMSG "ENVIRON["IRC_CHANNEL"]" :"$0 }'; }
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tmpdir="$(mktemp -d irc-announce_XXXXXXXX)"
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cd "$tmpdir"
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mkfifo ircin
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trap "
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rm ircin
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cd '$OLDPWD'
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rmdir '$tmpdir'
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trap - EXIT INT QUIT
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" EXIT INT QUIT
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{
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echo2 "USER $LOGNAME 0 * :$LOGNAME@$HOSTNAME"
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echo2 "NICK $IRC_NICK"
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# wait for MODE message
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${pkgs.gnused}/bin/sed -un '/^:[^ ]* MODE /q'
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echo2 "JOIN $IRC_CHANNEL"
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printf '%s' "$message" \
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| privmsg_cat
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echo2 "PART $IRC_CHANNEL"
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# wait for PART confirmation
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sed -un '/:'"$IRC_NICK"'![^ ]* PART /q'
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echo2 'QUIT :Gone to have lunch'
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} < ircin \
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| ${pkgs.netcat}/bin/netcat "$IRC_SERVER" "$IRC_PORT" |tee -a ircin
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'';
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};
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systemd.services.elchos-create-token = {
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startAt = "*:0/30";
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serviceConfig = {
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RuntimeMaxSec = "20";
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};
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script = ''
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set -euf
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now=$(date -u +%Y-%m-%dT%H:%M)
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sec=$(echo -n "${secret}$now" | md5sum | cut -d\ -f1)
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message="The secret valid for 30 minutes is $sec"
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echo -n "$sec" > /tmp/irc-secret
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echo "token for $now (UTC) is $sec"
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'';
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};
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}
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