Install Java 17
Ubuntu:
sudo add-apt-repository ppa:linuxuprising/java -y
sudo apt update
sudo apt-get install oracle-java17-installer oracle-java17-set-default
Install Signal-cli
Download latest version directly from releases: https://github.com/AsamK/signal-cli/releases.
Extract it and try to run signal-cli -u [PHONE NUMBER] receive.
If libsignal fails to load because architectures don't match, go to https://github.com/exquo/signal-libs-build/releases.
Short version of Signal-cli guide https://github.com/AsamK/signal-cli/wiki/Provide-native-lib-for-libsignal:
Choose your architecture and download latest version (dpkg --print-architecture).
Go to signal-cli/lib, remove included versions of libraries and add downloaded ones:
zip -d signal-client-java-*.jar libsignal_jni.so
zip -u signal-client-java-*.jar libsignal_jni.so
Log in to Signal
As main device (not tested!)
signal-cli --config /var/lib/signal-cli -u [PHONE NUMBER] register
signal-cli --config /var/lib/signal-cli -u [PHONE NUMBER] verify [CODE FROM SMS]
As secondary device
signal-cli --config /var/lib/signal-cli link -n "[DEVICE NAME]"
Copy printed link, paste it into QR generator and scan using Signal app on mobile.
Create DBus service
https://github.com/AsamK/signal-cli/wiki/DBus-service
Write bot
Install python dependencies:
pip install git+https://github.com/LEW21/pydbus.git
pip install PyGObject
pip install pycairo
Simple echo bot:
from pydbus import SystemBus
from gi.repository import GLib
import base64
bus = SystemBus()
loop = GLib.MainLoop()
signal = bus.get('org.asamk.Signal')
def send_message(source, groupID, text, attachments=[]):
if len(groupID) == 0:
signal.sendMessage(text, attachments, [source])
else:
signal.sendGroupMessage(text, attachments, groupID)
def msgRcv (timestamp, source, groupID, message, attachments):
send_message(source, groupID, 'text', ['attachment_file_path'])
signal.onMessageReceived = msgRcv
print("START")
loop.run()