Get notified when new booking hours is available at Politihuset Grønland or Politihuset Sandvika

date-compare.sh

#!/bin/bash

first_is_earlier() {
  y1=$(date -jf '%d.%m.%y%y' "$1" +'%Y' 2> /dev/null)
  y2=$(date -jf '%d.%m.%y%y' "$2" +'%Y' 2> /dev/null)
  m1=$(date -jf '%d.%m.%y%y' "$1" +'%m' 2> /dev/null)
  m2=$(date -jf '%d.%m.%y%y' "$2" +'%m' 2> /dev/null)
  d1=$(date -jf '%d.%m.%y%y' "$1" +'%d' 2> /dev/null)
  d2=$(date -jf '%d.%m.%y%y' "$2" +'%d' 2> /dev/null)
  if [ $y2 -gt $y1 ] ; then
    return 0
  fi
  if [ $m2 -gt $m1 ] ; then
    return 0
  fi
  if [ $d2 -gt $d1 ] ; then
    return 0
  fi
  return 1
}

test_first_is_earlier() {
  if first_is_earlier $1 $2; then
    echo "$1 IS earlier than $2";
  else
    echo "$1 IS NOT earlier than $2";
  fi
}

# day
echo "" && echo "day IS earlier"
test_first_is_earlier 05.05.2018 21.05.2018
test_first_is_earlier 15.05.2018 21.05.2018

echo "" && echo "day IS NOT earlier"
test_first_is_earlier 21.05.2018 21.05.2018
test_first_is_earlier 22.05.2018 21.05.2018
test_first_is_earlier 22.05.2018 15.05.2018

echo "" && echo "month IS earlier"
test_first_is_earlier 21.04.2018 21.05.2018
test_first_is_earlier 21.01.2018 21.05.2018
test_first_is_earlier 21.02.2018 21.12.2018

echo "" && echo "month IS NOT earlier"
test_first_is_earlier 21.05.2018 21.05.2018
test_first_is_earlier 21.06.2018 21.05.2018
test_first_is_earlier 21.11.2018 21.01.2018

echo "" && echo "year IS earlier"
test_first_is_earlier 21.05.2018 21.05.2019
test_first_is_earlier 21.05.2018 21.05.2020
test_first_is_earlier 21.05.2018 21.05.2022

echo "" && echo "year IS NOT earlier"
test_first_is_earlier 21.05.2018 21.05.2018
test_first_is_earlier 21.05.2019 21.05.2018

last-known-date.txt

28.05.2018

passtime.sh

#!/bin/bash

CLEAR='\033[0m'
RED='\033[0;31m'
YELLOW='\033[38;5;208m'
ORANGE='\033[0;33m'
GREEN='\033[0;32m'
LIGHTGREY='\033[38;5;244m'
GREY='\033[38;5;237m'

function welcome() {
  if [ -z "$QUIET" ]; then
  printf """$LIGHTGREY\
                           __  _
    ____  ____ ___________/ /_(_)___ ___  ___     Get notified when new
   / __ \/ __ \`/ ___/ ___/ __/ / __ \`__ \/ _ \\    booking hours is available
  / /_/ / /_/ (__  |__  ) /_/ / / / / / /  __/    at Politihuset Grønland or
 / .___/\__,_/____/____/\__/_/_/ /_/ /_/\___/     Politihuset Sandvika
/_/

$CLEAR"""
  fi
}

function usage() {
  if [ -n "$1" ]; then
    echo -e "${RED}👉 $1${CLEAR}\n";
  fi
  echo "Usage: $0 [-n number-of-people] [-s section-id] [-c cache-file]"
  echo "  -n, --number-of-people   The number of people"
  echo "  -s, --section-id         Which Police station are you going to? (1 => Grønland, 2 => Sandvika)"
  echo "  -c, --cache-file         A path for a cache file to store the date"
  echo "  -q, --quiet              Only print available date"
  echo ""
  echo "Example: $0 --number-of-people 2 --section-id 1 --cache-file last-known-date.txt"
  exit 1
}

welcome

# parse params
while [[ "$#" > 0 ]]; do case $1 in
  -n|--number-of-people) NUMBER_OF_PEOPLE="$2"; shift;shift;;
  -s|--section-id) SECTION_ID="$2";shift;shift;;
  -c|--cache-file) CACHED_DATE_FILE="$2";shift;shift;;
  -q|--quiet) QUIET=1;shift;;
  *) usage "Unknown parameter passed: $1"; shift; shift;;
esac; done

# verify params
if [ -z "$NUMBER_OF_PEOPLE" ]; then usage "Number of people is not set"; fi;
if [ -z "$SECTION_ID" ]; then usage "Section id is not set."; fi;
if [ -z "$CACHED_DATE_FILE" ]; then usage "Cache file for storing the last known date is not set. Needed in order to compare and be certain that a booking has been cancelled."; fi;

function output_start() {
  if [ -z "$QUIET" ]; then echo -ne "\r${GREY}[~] $@...${CLEAR}"; fi
}

function output_success() {
  if [ -z "$QUIET" ]; then echo -e "\r${GREEN}[+] $@ (SUCCESS)${CLEAR}"; fi
}

function output_failed() {
  echo -e "\r${RED}[!] $@ (FAILED)${CLEAR}";
  exit 1;
}

clean_up() {
  rm $COOKIE_FILE 2> /dev/null
  rm $TEMP_FILE 2> /dev/null
}

fatal_error() {
  clean_up;
  echo $1;
  exit 1;
}

echo_request_id() {
  cat $1 | grep '<input name="__RequestVerificationToken" type="hidden" value="' | sed -n -e 's/.*__RequestVerificationToken" type="hidden" value="//p' | sed -n -e 's/".*//p' | head -1
}

assert_valid_req_id() {
  if [ ${#1} = "172" ] ; then
    output_success "$2"
  else
    output_failed "$2"
  fi
}

first_date_is_earlier() {
  y1=$(date -jf '%d.%m.%y%y' "$1" +'%Y' 2> /dev/null)
  y2=$(date -jf '%d.%m.%y%y' "$2" +'%Y' 2> /dev/null)
  m1=$(date -jf '%d.%m.%y%y' "$1" +'%m' 2> /dev/null)
  m2=$(date -jf '%d.%m.%y%y' "$2" +'%m' 2> /dev/null)
  d1=$(date -jf '%d.%m.%y%y' "$1" +'%d' 2> /dev/null)
  d2=$(date -jf '%d.%m.%y%y' "$2" +'%d' 2> /dev/null)
  if [ $y2 -gt $y1 ] ; then
    return 0
  fi
  if [ $m2 -gt $m1 ] ; then
    return 0
  fi
  if [ $d2 -gt $d1 ] ; then
    return 0
  fi
  return 1
}

partial_curl() {
  curl \
    -H 'Origin: https://pass.oslo.politi.no' \
    -H 'Host: pass.oslo.politi.no' \
    -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' \
    -H 'Accept-Language: nb-no' \
    -H 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/604.5.6 (KHTML, like Gecko) Version/11.0.3 Safari/604.5.6' \
    -H 'Referer: https://pass.oslo.politi.no/Booking/Booking/Index/Pass' \
    --compressed 'https://pass.oslo.politi.no/Booking/Booking/Index/Pass' \
    --silent -L \
    -c $COOKIE_FILE -b $COOKIE_FILE \
    -o $TEMP_FILE \
    $@
}

COOKIE_FILE=$(mktemp)
TEMP_FILE=$(mktemp)

output_start "Start session"
partial_curl
REQ_ID=`echo_request_id $TEMP_FILE`
assert_valid_req_id $REQ_ID "Start session"

output_start "Start booking"
rm $TEMP_FILE 2> /dev/null
partial_curl \
  --data "__RequestVerificationToken=$REQ_ID&FormId=1&ServiceGroupId=1&NextButtonID20=Booke+time" \
  --compressed 'https://pass.oslo.politi.no/Booking/Booking/Next/Pass' \
  -o $TEMP_FILE
REQ_ID=`echo_request_id $TEMP_FILE`
assert_valid_req_id $REQ_ID "Start booking"

output_start "Accept terms of agreement"
rm $TEMP_FILE 2> /dev/null
partial_curl \
  --data "__RequestVerificationToken=$REQ_ID&AgreementText=Samtykke+for+lagring+av+personopplysninger.%0D%0A%0D%0AFor+%C3%A5+kunne+bestille+elektronisk+time+m%C3%A5+du+samtykke+til+at+navn%2C%0D%0Ae-postadresse+og+mobiltelefonnummer+lagres.%0D%0ADine+opplysninger+blir+automatisk+slettet+dagen+etter+at+du+har+v%C3%A6rt+hos+oss.%0D%0A%0D%0AJeg+samtykker+til+at+navn%2C+e-postadresse+og+mobiltelefonnummer+lagres.%0D%0A%0D%0AVelg+antall+personer+%28ogs%C3%A5+barn%29+som+bestillingen+gjelder+%28hvor+mange+som+skal+ha+pass%29.&AcceptInformationStorage=true&AcceptInformationStorage=false&NumberOfPeople=$NUMBER_OF_PEOPLE&Next=Neste" \
  --compressed 'https://pass.oslo.politi.no/Booking/Booking/Next/Pass' \
  -o $TEMP_FILE
REQ_ID=`echo_request_id $TEMP_FILE`
assert_valid_req_id $REQ_ID "Accept terms of agreement"

output_start "Fetch dates"
rm $TEMP_FILE 2> /dev/null
TODAY=`date +%d.%m.%Y`
partial_curl \
  --data "__RequestVerificationToken=$REQ_ID&FormId=1&RegionId=0&SectionId=$SECTION_ID&ServiceTypeId=1&FromDateString=$TODAY&TimeSearchFirstAvailableButton=Vis+f%C3%B8rste+ledige+tidspunkt" \
  --compressed 'https://pass.oslo.politi.no/Booking/Booking/Next/Pass' \
  -o $TEMP_FILE
REQ_ID=`echo_request_id $TEMP_FILE`
assert_valid_req_id $REQ_ID "Fetch dates"

FIRST_DATE=`cat $TEMP_FILE | grep '<th id="' | sed -n -e 's/                <th id="//p' | sed -n -e 's/">//p' | head -1 | sed -n -e 's/[^0-9.]//gp'`
CACHED_DATE=`cat $CACHED_DATE_FILE 2> /dev/null`

echo "$FIRST_DATE" > $CACHED_DATE_FILE

if [ -z "$QUIET" ]; then
  echo ""
  if [ ${#CACHED_DATE} = "0" ] ; then
      echo -e "First available date is $FIRST_DATE (cache is empty)"
  else
    echo -e "First available date is $FIRST_DATE (cached $CACHED_DATE)"
  fi
  if first_date_is_earlier $FIRST_DATE $CACHED_DATE; then
    echo -e "${GREEN}🎉 Congrats! We got a new date available! 🎉${CLEAR}"
  else
    echo "Current available date is not earlier than cached..."
  fi
else
  echo "$FIRST_DATE"
fi

clean_up

if first_date_is_earlier $FIRST_DATE $CACHED_DATE; then
  output_start "Send SMS"
  curl 'https://api.twilio.com/2010-04-01/Accounts/ACf60817ef55bfc9f6f650363a2269c581/Messages.json' -X POST \
  --data-urlencode 'To=+123123' \
  --data-urlencode 'From=+123123' \
  --data-urlencode "Body=Nyeste dato er $FIRST_DATE" \
  -u 123:312 \
  --silent -L -f > /dev/null \
  && output_success "Send SMS" \
  || output_failed "Send SMS"
  exit 0;
else
  exit 1;
fi