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business_card_puzzle

simple website that checks the solution to my business card puzzle

change directory:

cd frontend

install dependencies:

npm install

run the app:

(linux)

SET DEBUG=frontend:* & npm start

(windows Powershell)

$env:DEBUG='frontend:*'; npm start

how to run tests

npm run test

docker

build locally

docker build -t wisehackermonkey/businesscardpuzzle .
docker login
docker push wisehackermonkey/businesscardpuzzle:latest

build locally (docker-compose)

cd /path/to/project/dir/
docker-compose -f docker-compose.local.yml build
docker-compose -f docker-compose.local.yml up

docker publish

Docker push image docker hub

docker login
docker push wisehackermonkey/businesscardpuzzle:latest

setup

create a file called .env

with the contents Similar to this NOTE: flags must be unique

touch .env

FLAG1=1234567890
FLAG2=0987654321
FLAG3=1111111111
PORT=3000

run

docker-compose --env-file .\.env build

docker-compose  up
OR 
docker-compose --env-file .\.env up

deploy (docker-compose)

git clone https://github.com/wisehackermonkey/business_card_puzzle.git
cd business_card_puzzle/
touch .env
# MODIFY THE FLAG values to match your desired values
echo "FLAG1=123456789
FLAG2=999999999
FLAG3=111111111
PORT=3000">>.env

OPTIONS

1) use the envirmental variable file you just created

docker-compose -f docker-compose.local.yml --env-file .\.env up

2) run with docker image prebuild

docker-compose  --env-file .\.env up

3)

docker-compose  up -d

deploy (just docker)

link about how env files work with docker Environment variables in Compose | Docker Documentation
docker pull wisehackermonkey/businesscardpuzzle:latest
touch .env

echo "FLAG1=123456789
FLAG2=999999999
FLAG3=111111111
PORT=3000">>.env
docker run -it -p 3000:3000 --env-file ./.env wisehackermonkey/businesscardpuzzle:latest

Logging the application

try 1

Centralize Your Docker Logging With Syslog 

sudo apt install rsyslog rsyslog-doc
code /etc/rsyslog.conf

added
$ModLoad imtcp $InputTCPServerRun 514
$imjournalRatelimitInterval 0
$imjournalRatelimitBurst 0
code /etc/systemd/journald.conf

mkdir -p /root/logs
code /etc/rsyslog.d/docker_daemon.conf
"
$template DockerLogs, "/root/logs/daemon.log"
if $programname startswith 'dockerd' then -?DockerLogs
& stop
"
code /etc/rsyslog.d/docker_container.conf
"
DockerContainerLogs,"/root/logs/%hostname%_%syslogtag:R,ERE,1,ZERO:.*container_name/([^\[]+)--end%.log"
if $syslogtag contains 'container_name'  then -?DockerContainerLogs
& stop
"

try 2

git clone https://github.com/m0wfo/le-docker.git
cd le-docker/
docker build -t le/example .
docker run -i -t le/example /bin/bash

try 3

docker file

FROM ubuntu
RUN apt update && apt install rsyslog -y
RUN echo '$ModLoad imudp \n\
$UDPServerRun 514 \n\
$ModLoad imtcp \n\
$InputTCPServerRun 514 \n\
$template RemoteStore, "/var/log/remote/%$year%/%$Month%/%$Day%/%$Hour%.log" \n\
:source, !isequal, "localhost" -?RemoteStore \n\
:source, isequal, "last" ~ ' > /etc/rsyslog.conf
ENTRYPOINT ["rsyslogd", "-n"]

run

docker build -t mysyslog .

docker run  --cap-add SYSLOG --restart always -v /var/log:/var/log -p 514:514 -p 514:514/udp --name rsyslog mysyslog

--cap-add SYSLOG --> Allow container to perform privileged syslog(2) operations.
--restart always --> Restart container regardless of the exit status
-v /var/log:/var/log --> Mount host /var/log directory in container /var/log directory 
-p 514:514         --> Bind Host TCP 514 port to contaainer TCP 514 port 
-p 514:514/udp     --> Bind Host UDP 514 port to contaainer UDP 514 port

add to docker compose

syslogserver: 
    image: mysyslog 
    hostname: syslog 
    container_name: syslog 
    restart: always
    volumes: 
      - "/var/log:/var/log" 
    ports: 
      - 514:514
      - 514:514/udp
    cap_add:
      - SYSLOG

run

docker-compose down
docker-compose build
docker-compose up
docker run --log-driver syslog --log-opt syslog-address=tcp://localhost:514 alpine echo hello world

installing ui

docker run -it -e SYSLOG_USERNAME=admin -e SYSLOG_PASSWORD=1234 -p 8080:80 -p 514:514/udp pbertera/syslogserver

adding log driver to may conainer

version: '3.4'

services:
  businesscardpuzzle:
<--snip-->
    logging:
      driver: "syslog"
      options:
        syslog-address: 'tcp://localhost:514'

  syslogserver:
      restart: always
      env_file: 
        - .env
      ports:
          - '7331:80'
          - '514:514/udp'
      image: pbertera/syslogserver

docker-compose down
docker-compose up
 code docker-compose.logs.yml

version: '3.4'

services:
  syslogserver:
      restart: always
      env_file: 
        - .env
      ports:
          - '8080:80'
          - '514:514/udp'
      image: pbertera/syslogserver
docker-compose --file docker-compose.logs.yml up -d
docker-compose up

try 4

docker run -it \
  --name=logarr \
  --restart=on-failure \
  -v ${PWD}/config:/config \
  -v ${PWD}/logs:/var/log/logarrlogs \
  -e TZ=America/Los_Angeles \
  -p 6666:80 \
  monitorr/logarr

try 5

docker run --detach --volume=/var/run/docker.sock:/var/run/docker.sock -p 8080:8080 amir20/dozzle

Rate Limiting

made possible with : express-rate-limit - npm which was super easy!!!

how to test ratelimiting

install "hey" rakyll/hey: HTTP load generator, ApacheBench (ab) replacement, formerly known as rakyll/boom

### on server
docker-compose -f docker-compose.local.yml up
### on another computer
hey -n 1000 -c 100 http://localhost:3000/check/?flag1=1337&flag2=1337&flag3=1337

For my website
hey -n 1000 -c 100 http://www.orancollins.com:3000/check/?flag1=1337&flag2=1337&flag3=1337
with url encoding
hey -n 1000 -c 100   http://www.orancollins.com:3000/check/?flag1=1337%26flag2=1337%26flag=1337

results it works! 900 out of 1000 went to 'sorry you have been ratelimited'

Update: turns out 100 requests per minute was way too lenent! Now its 5 per minute, my friend tried it and he was totally able to bruteforce it really easily.

TODO

  • add audio when you win via webaudio api
  • add email me when someone wins
  • fail sound
  • [] sound toggle use input:checkbox
  • fix order check issue
  • [] add logging