diff --git a/list b/list deleted file mode 100755 index 230d84f..0000000 --- a/list +++ /dev/null @@ -1,4 +0,0 @@ -#!/bin/bash - -cd /tilde/bin -ls | tr '\t' '\n' diff --git a/tilde b/tilde index 7db5920..a3b1775 100755 --- a/tilde +++ b/tilde @@ -1,74 +1,272 @@ -#!/usr/bin/python2 -import argparse,sys,os,subprocess +#!/bin/bash +# --------------------------------------------------------------------------- +# tilde - manage user-submitted scripts and apps -class TildeContrib(object): - def __init__(self,progdir): - self.progdir=progdir - pass +# Copyright 2018, Ben Harris - def __getattr__(self,k): - if k in ("list"): - return object.__getattr__(self,k) - return lambda x: os.system("/tilde/bin/{} {}".format(k," ".join(x))) +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. - def list(self, x, inc=True): - cs = filter(None,subprocess.check_output(['/tilde/special/list']).split("\n")) - f = " ".join(x) if len(x)>0 else "" - ret = [] - for c in cs: - if f in c: - ret.append(c) - if inc: - ret.extend(["list"]) - return ret +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License at for +# more details. -class TildeLauncher: +# Usage: tilde [-h|--help] - COMMANDS = ["help","contrib"] +# --------------------------------------------------------------------------- - USAGE = dict(help="\n Displays this menu",contrib=" \n Your gateway to programs made by teammates,\n for teammates!") +PROGNAME=${0##*/} +VERSION="0.0.1" - def __init__(self,prog_dir): - self.progdir = prog_dir - self.tc = TildeContrib(prog_dir) - def base(self): - print """ Welcome to tilde.team :) this program is your gateway to team-specific - commands and features. Run tilde help to see the sort of things you can do.""" +clean_up() { # Perform pre-exit housekeeping + return +} - def help(self,argv): - commands_to_display = [] - if len(argv)==0: - commands_to_display = self.COMMANDS - else: - commands_to_display = [i for i in argv if i in self.COMMANDS] - for cmd in commands_to_display: - print "tilde {}{}".format(cmd,self.USAGE[cmd]) - def contrib(self,argv): - if not argv: - argv = ["list"] # default to listing - if argv[0]=="list": - print "Commands:" - for c in self.tc.list(argv[1:]): - print " tilde contrib "+c -# elif argv[0]=="bootstrap": -# for c in self.tc.list([],False): -# print("alias {0}=\"tilde contrib {0}\"".format(c)) - else: - getattr(self.tc,argv[0])(argv[1:]) +error_exit() { + echo -e "${1:-"unknown Error"}" >&2 + clean_up + exit 1 +} -# def chat(self,argv): -# os.system("/tilde/special/chat") -if __name__=="__main__": - tl = TildeLauncher("/tilde/bin") - argv = sys.argv[1:] - if len(argv)==0: - tl.base() - else: - if not hasattr(tl,argv[0]): - print " Unknown command %s!" - tl.help([]) +graceful_exit() { + clean_up + exit +} + + +signal_exit() { # Handle trapped signals + case $1 in + INT) + error_exit "program interrupted by user" ;; + TERM) + echo -e "\n$PROGNAME: program terminated" >&2 + graceful_exit ;; + *) + error_exit "$PROGNAME: terminating on unknown signal" ;; + esac +} + + +prompt_confirm() { + while true; do + read -r -n 1 -p "${1:-continue?} [y/n]: " REPLY + case $REPLY in + [yY]) echo ; return 0 ;; + [nN]) echo ; return 1 ;; + *) printf " \033[31m %s \n\033[0m" "invalid input" + esac + done +} + + +usage() { + echo -e "\nusage: $PROGNAME [help|list|submit|about|script_name]\n" + echo " $PROGNAME list - show a list of approved userscripts" + echo " $PROGNAME submit - start the submission flow for your own script" + [[ $(id -u) == 0 ]] && { + echo " $PROGNAME approve - enter the approval queue" + echo " $PROGNAME revoke - send a script back to the author and remove from /tilde/bin" + } + echo " $PROGNAME about - get the description for script_name" + echo " $PROGNAME - run script_name with all remaining args are passed to the script" + + if [[ :$PATH: != *:"/tilde/bin":* ]] ; then + echo -e "\nadd /tilde/bin to your PATH to use approved scripts without this wrapper" + echo "if you're using bash, run the following to add it quickly" + echo " echo 'export PATH=\$PATH:/tilde/bin' >> ~/.bashrc && source ~/.bashrc" + fi +} + + +help_message() { + cat <<- _EOF_ +$PROGNAME ver. $VERSION +wrapper for user-submitted scripts +supports user submission and admin approval +$(usage) +_EOF_ + return +} + + +verify_script_name() { + [[ $1 == "" ]] && error_exit "please start over and enter the script name" + [[ $(type -P "$1") ]] && + [[ -x $HOME/bin/$1 ]] || + error_exit "$1 already exists. rename your script and try again." + [[ -x /tilde/bin/$1 ]] && error_exit "$1 is already taken. rename your script and try again." + case $1 in + about|description|list|ls|submit|about|help|apropos|submit|approve) + error_exit "$1 is a subcommand of tilde. rename your script and try again." ;; + *) + return ;; + esac +} + + +submission_checklist() { + cat <<- _EOF_ +requirements for submitting a user script or program: + + - placed in your ~/bin + - executable + - responds to help or --help + - no name collisions with existing scripts or $PROGNAME subcommands + +_EOF_ +} + + +mail_body() { + cat <<- _EOF_ +Subject: tilde script submission from $USER +From: $USER@tilde.team +To: ben@tilde.team + +tilde script submission from $USER + +script name: $1 + +description: +----------------------------------------------------------------------- + +$2 + +----------------------------------------------------------------------- +you'll find the script and description in: /tilde/pending-submissions/$USER/$1 + +run this to see the approval queue: +sudo tilde approve +_EOF_ +} + + +# Trap signals +trap "signal_exit TERM" TERM HUP +trap "signal_exit INT" INT + +# Check for root UID + + +# Parse command-line +case $1 in + -h | --help | help) + help_message; graceful_exit ;; + + -v | --version) + echo $VERSION ;; + + -* | --*) + usage + error_exit "Unknown option $1" ;; + + list | ls) + echo -e "available scripts:\n" + for scr in /tilde/bin/*; do + script_name=$(basename $scr) + target=$(readlink -f "$scr") + echo "$script_name by "$(stat -c '%U' $target) + cat /tilde/descriptions/$script_name + echo "" + done ;; + + about | apropos | description) + if [[ -f /tilde/descriptions/$2 ]]; then + cat /tilde/descriptions/$2 + else + echo "$2 not found. try $PROGNAME list to see available user scripts." + fi + ;; + + submit) + echo "hello, $USER! so it's time to submit your script?" + submission_checklist + prompt_confirm "are you ready to continue?" || graceful_exit + echo -n "enter the name of your script: " + read script_name + + verify_script_name $script_name + + if [[ -x $HOME/bin/$script_name ]]; then + echo "cool, found your script" + [[ -x /tilde/pending-submissions/$USER/$script_name/$script_name ]] && error_exit "you've already submitted $script_name" + else + error_exit "$script_name not found in ~/bin" + fi + + echo "enter a description of your script: " + read description + echo -e "\nyour script, along with your description will be sent to the admins for approval" + prompt_confirm "ready to submit?" || graceful_exit + + # submit now + mkdir -p /tilde/pending-submissions/$USER/$script_name + ln -s $HOME/bin/$script_name /tilde/pending-submissions/$USER/$script_name/$script_name + echo $description > /tilde/pending-submissions/$USER/$script_name/description.txt + mail_body $script_name "$description" | sendmail ben + echo "script submitted. thanks! :)" ;; + + approve) + [[ $(id -u) != 0 ]] && error_exit "re-run this as sudo to access the approval queue" + + echo -e "welcome to the approval queue\n\n" + + for user in /tilde/pending-submissions/*; do + for scr in $user/*; do + user=$(basename $user) + script_name=$(basename $scr) + [[ -f $scr/approved ]] && continue + script=$scr/$script_name + echo "$script_name by $user" + cat $scr/description.txt + prompt_confirm "approve?" || continue + + sudo ln -s $(readlink -f $script) /tilde/bin/$script_name + sudo cp $scr/description.txt /tilde/descriptions/$script_name + sudo touch $scr/approved + sudo chmod 664 /tilde/descriptions/* + echo "your submission of $script_name has been approved and is now available at /tilde/bin/$script_name" | sendmail $user + done + done + echo "~~done for now~~" ;; + + revoke) + [[ $(id -u) != 0 ]] && error_exit "re-run this as sudo to access the revoke menu" + [[ -f /tilde/bin/$2 ]] || error_exit "$2 isn't an approved script" + + prompt_confirm "revoke $2?" + echo -n "please provide a reason: " + read reason + + original_script=$(readlink -f /tilde/bin/$2) + author=$(stat -c '%U' $original_script) + sudo rm /tilde/{bin,descriptions}/$2 + sudo rm -rf /tilde/pending-submissions/$author/$2 + + echo -e "your script $2 has been returned because: $reason\nfeel free to resubmit" | sendmail $author + echo "$2 revoked and returned to author" ;; + + *) + if [[ -f /tilde/bin/$1 ]]; then + prog=/tilde/bin/$1 + shift + $prog "$@" + graceful_exit + else + [[ $1 == "" ]] || echo -e "$1 not found. try $PROGNAME list to see what's available\n" + help_message; graceful_exit; + fi ;; + +esac + +# Main logic + +graceful_exit - getattr(tl,argv[0])(argv[1:])