#!/bin/bash
#
# This script will save debug info to either a gist or /tmp/

# Are we running as root?
if [[ $EUID -ne 0 ]]; then
  echo "This script must be run as root. Please re-run like this:"
  echo
  echo "sudo $0"
  echo
  exit
fi

echo "This script produces a diagnostic log to help the maintainers"
echo "figure out why your Mail-in-a-Box installation isn't working the"
echo "way you expected it to."
echo
echo "It gives you the option to post this log to a *Secret* github gist"
echo "and only those you send the link to will be able to view it."
echo "If you have a github account, and you log in with your github account"
echo "you will be able to delete the secret gist."
echo
echo "This log will contain sensitive information about your installation"
echo "including, but not limited to:"
echo "email addresses"
echo "domain names"
echo "IP addresses"
echo "server security configuration"
echo "etc."
echo
echo "====================================================================="
echo "Do not post this file to the internet if you are not comfortable"
echo "exposing this information publicly to the world forever."
echo "====================================================================="
echo
echo "Once the log has been collected, you will be given the option to post"
echo "the log to https://gist.github.com/ so that others can help you diagnose"
echo "the issues with your Mail-in-a-Box installation"
echo
echo "Should you decide not to post the log to a gist, it will be saved"
echo "to disk and you can scrub it before sharing it."
echo
echo "You are solely responsible for the data you choose to publish"

source /etc/mailinabox.conf # load global vars
TMP_FILE=/tmp/MIAB_debug_$(date -d "today" +"%Y%m%d%H%M%S").log

touch $TMP_FILE;

# MIAB status checks
/root/mailinabox/management/status_checks.py >> $TMP_FILE;
echo >> $TMP_FILE; # newline after status_checks

# all of the commands we want to run.
declare -a commands=("git -C /root/mailinabox status"
                     "uptime"
                     "lsb_release -d"
                     "free -m"
                     "df -h"
                     "ps auxf"
                     "pip3 list"
                     "dpkg --list"
                     "ufw status verbose"
                     "ifconfig"
                     "lsof -i"
                     "dmesg"
                     "cat /etc/hosts"
                     "cat /etc/resolv.conf"
                     "cat /var/log/syslog"
                     "cat /var/log/mail.log"
                     "cat /var/log/boot.log"
                     "cat /var/log/roundcubemail/errors")

function name_and_delineator () {
  CMD_LENGTH=${#1}
  DELINEATOR="";
  for (( c=1; c<=$CMD_LENGTH; c++ ))
  do
     DELINEATOR+="=";
  done
  echo $1 >> $TMP_FILE
  echo $DELINEATOR >> $TMP_FILE;
}

# iterate through each command, announce it, execute it and log it.
for i in "${commands[@]}"
do
  echo "executing: $i and saving output to $TMP_FILE"
  name_and_delineator "$i" # pretty printing
  eval `echo $i` >> $TMP_FILE # execute string as a command, including spaces
  echo >> $TMP_FILE; # newline
done

function post_gist () {
  echo "Posting the debug log to https://gist.github.com at this url:"
  echo $(gist-paste -p -s `echo $TMP_FILE`)
  echo "Please provide this url to help diagnose your issue."
}

# double check that the user wants to post to github.
echo "Do You want to post your debug log on https://gist.github.com?"
echo
echo "It will create a *secret* gist that you can delete later"
echo
echo "Please type 'YES' below, anything else will cancel."
echo -n "Type YES to publish:"
read answer
if echo "$answer" | grep -q "^YES" ;then
  if [ ! -f /root/.gist ]; then
    echo "You will need to log into Github first."
    echo "You can skip this step by pressing <ctrl-c>, but you will not"
    echo "be able to delete the debug log if you do not log in."
    gist-paste --login
    # ask again, just to be sure.
    echo "Are you sure you want to post your debug log on https://gist.github.com?"
    echo "Please type 'YES' below, anything else will cancel."
    echo -n "Type YES to publish:"
    read answer
    if echo "$answer" | grep -q "^YES" ;then
      post_gist
    else
      # logged in to github, but said no on the second request
      echo "Nothing has been posted to gist.github.com"
      echo "Your debug log file is here:"
      echo "$TMP_FILE"
      echo
      echo "You can review and edit the file to remove private information and"
      echo "manually post it to gist.github.com."
    fi
  else
    post_gist
  fi
else # said no to initial request to post to gist.github.com
  echo "Nothing has been posted to gist.github.com"
  echo "Your debug log file is here:"
  echo "$TMP_FILE"
  echo
  echo "You can review and edit the file to remove private information and"
  echo "manually post it to gist.github.com."
fi