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https://github.com/valerio-vaccaro/raspberrypi_pinserver

Blind Pin Server installation for Raspberry Pi Zero
https://github.com/valerio-vaccaro/raspberrypi_pinserver

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Blind Pin Server installation for Raspberry Pi Zero

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README 

        
# Raspberrypi Pinserver



Blockstream Blind Pin Server installation for Raspberry Pi Zero.



## Hardware needed

- Raspberry Pi Zero WH

- UPS Lite V1.2 UPS

- Waveshare 2.9inch e-Paper Module



## Install Docker



Install Docker on your board.



```

curl -sSL https://get.docker.com | sh

sudo usermod -aG docker pi

sudo apt-get install -y libffi-dev libssl-dev

sudo apt-get install -y python3 python3-pip

sudo apt-get remove python-configparser

sudo pip3 -v install docker-compose

```



## Install Pinserver



Create the image for the pin server and create the server keys.



```

git clone https://github.com/valerio-vaccaro/blind_pin_server.git pinserver

cd pinserver

git checkout raspberry_pi_zero

cd -



python -m venv -p python3 venv

. venv/bin/activate

pip install --require-hashes -r pinserver/requirements.txt

python -m pinserver.generateserverkey

docker build -f pinserver/Dockerfile pinserver/ -t dockerized_pinserver

mkdir pinsdir

chmod 0777 pinsdir

```



(Optional) Start the docker that contain pin server.



```

cd /opt

docker run -v $PWD/server_private_key.key:/server_private_key.key -v $PWD/pinsdir:/pins -p 8096:8096 dockerized_pinserver

```



## Install tor



Install tor and configure on port 8096.



```

sudo apt -y install tor

sudo sed -i -r 's/#HiddenServiceDir \/var\/lib\/tor\/hidden_service\//HiddenServiceDir \/var\/lib\/tor\/hidden_service\//' /etc/tor/torrc

sudo sed -i -r 's/#HiddenServicePort 80 127.0.0.1:80/HiddenServicePort 8096 127.0.0.1:8096/' /etc/tor/torrc

sudo /etc/init.d/tor restart



```



## Install apache and web page



Install apache in order to share server pubkey and minimal config page.



```

cd /opt

git clone https://github.com/valerio-vaccaro/raspberrypi_pinserver.git

sudo apt install -y apache2 php libapache2-mod-php

cp /opt/server_public_key.pub /var/www/html/

cp -r /opt/raspberrypi_pinserver/web/* /var/www/html/

```



Give www-data user sudo priviledges (used for shutdown script).



```

sudo echo "www-data ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/010_www-data-nopasswd

```



## Install Power



Enable I2C interface from raspi-config and test using the following program.



```

git clone https://github.com/linshuqin329/UPS-Lite

sudo pip3 install smbus

```



(Optional) Check functionalities



```

cd /opt/UPS-Lite

python3 UPS_Lite.py

```



## Install e-ink display



Enable SPI interface from raspi-config and install drivers.



```

wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.60.tar.gz

tar zxvf bcm2835-1.60.tar.gz

cd bcm2835-1.60/

./configure

make

make check

sudo make install



sudo apt-get update

sudo apt-get install python3-pip python3-pil python3-numpy

sudo pip3 install RPi.GPIO spidev qrcode psutil



git clone https://github.com/waveshare/e-Paper

cd e-Paper/RaspberryPi_JetsonNano/python

sudo pip3 install .

```



Install start and stop scripts.



```

vim /etc/systemd/system/start_and_stop.service

```



and copy the following contents



```

[Unit]

Description=Run Scripts at Start and Stop



[Service]

Type=oneshot

RemainAfterExit=true

ExecStart=/opt/raspberrypi_pinserver/start.sh

ExecStop=/opt/raspberrypi_pinserver/stop.sh



[Install]

WantedBy=multi-user.target

```



and enable the script.



```

systemctl enable start_and_stop

```



Optionally test the display with examples.



```

cd examples

python3 epd_2in13_test.py

```



## Start



Start docker and display scripts with pm2.



```

sudo apt install -y nodejs npm

sudo npm install -g pm2

sudo pm2 start /opt/raspberrypi_pinserver/docker.sh

sudo pm2 start /opt/raspberrypi_pinserver/display.sh

sudo pm2 save

sudo pm2 startup

```



## Client



Create a couple of keys for your client and store in the `client/keys` folder.



Download the server public key on client directory (only on local network, for example we will use the ip 192.168.8.151, the ip associated with your board is present in the eink).



```

cd client/key

wget http://192.168.8.151/server_public_key.pub

cd ..

```



Configure the example, set the pinserver_url var with the tor url (the same you can read in the qrcode on eink) and port 8096.



Execute the example, you will need a running tor proxy.



```

python3 main_pinserver_client.py

```