3 signal-cli is a commandline interface for
[libsignal-service-java](https://github.com/WhisperSystems/libsignal-service-java). It supports registering, verifying, sending and receiving messages. To be able to receiving messages signal-cli uses a
[patched libsignal-service-java](https://github.com/AsamK/libsignal-service-java), because libsignal-service-java
[does not yet support registering for the websocket support](https://github.com/WhisperSystems/libsignal-service-java/pull/5) nor
[provisioning as a slave device](https://github.com/WhisperSystems/libsignal-service-java/pull/21). For registering you need a phone number where you can receive SMS or incoming calls.
4 It is primarily intended to be used on servers to notify admins of important events. For this use-case, it has a dbus interface, that can be used to send messages from any programming language that has dbus bindings.
8 You can
[build signal-cli](#building) yourself, or use the [provided binary files](https://github.com/AsamK/signal-cli/releases/latest), which should work on Linux, macOS and Windows. For Arch Linux there is also a
[package in AUR](https://aur.archlinux.org/packages/signal-cli/). You need to have at least JRE
7 installed, to run signal-cli.
10 ### Install system-wide on Linux
11 See
[latest version](https://github.com/AsamK/signal-cli/releases).
13 export VERSION=<latest version, format "x.y.z">
14 wget https://github.com/AsamK/signal-cli/releases/download/v"${VERSION}"/signal-cli-"${VERSION}".tar.gz
15 sudo tar xf signal-cli-"${VERSION}".tar.gz -C /opt
16 sudo ln -sf /opt/signal-cli-"${VERSION}"/bin/signal-cli /usr/local/bin/
21 usage: signal-cli [-h] [-v] [--config CONFIG] [-u USERNAME | --dbus | --dbus-system] {link,addDevice,listDevices,removeDevice,register,verify,send,quitGroup,updateGroup,listIdentities,trust,receive,daemon} ...
23 * Register a number (with SMS verification)
25 signal-cli -u USERNAME register
27 * Register a number (with voice verification)
29 signal-cli -u USERNAME register -v
31 * Verify the number using the code received via SMS or voice
33 signal-cli -u USERNAME verify CODE
35 * Send a message to one or more recipients
37 signal-cli -u USERNAME send -m "This is a message" [RECIPIENT [RECIPIENT ...]] [-a [ATTACHMENT [ATTACHMENT ...]]]
39 * Pipe the message content from another process.
41 uname -a | signal-cli -u USERNAME send [RECIPIENT [RECIPIENT ...]]
45 signal-cli -u USERNAME receive
51 signal-cli -u USERNAME updateGroup -n "Group name" -m [MEMBER [MEMBER ...]]
55 signal-cli -u USERNAME updateGroup -g GROUP_ID -n "New group name" -a "AVATAR_IMAGE_FILE"
57 * Add member to a group
59 signal-cli -u USERNAME updateGroup -g GROUP_ID -m "NEW_MEMBER"
63 signal-cli -u USERNAME quitGroup -g GROUP_ID
65 * Send a message to a group
67 signal-cli -u USERNAME send -m "This is a message" -g GROUP_ID
69 * Linking other devices (Provisioning)
71 * Connect to another device
73 signal-cli link -n "optional device name"
75 This shows a "tsdevice:/…" link, if you want to connect to another signal-cli instance, you can just use this link. If you want to link to and Android device, create a QR code with the link (e.g. with
[qrencode](https://fukuchi.org/works/qrencode/)) and scan that in the Signal Android app.
79 signal-cli -u USERNAME addDevice --uri "tsdevice:/…"
81 The "tsdevice:/…" link is the one shown by the new signal-cli instance or contained in the QR code shown in Signal-Desktop or similar apps.
82 Only the master device (that was registered directly, not linked) can add new devices.
84 * Manage linked devices
86 signal-cli -u USERNAME listDevices
88 signal-cli -u USERNAME removeDevice -d DEVICE_ID
94 signal-cli -u USERNAME listIdentities
96 * View known keys of one number
98 signal-cli -u USERNAME listIdentities -n NUMBER
100 * Trust new key, after having verified it
102 signal-cli -u USERNAME trust -v FINGER_PRINT NUMBER
104 * Trust new key, without having verified it. Only use this if you don't care about security
106 signal-cli -u USERNAME trust -a NUMBER
110 signal-cli can run in daemon mode and provides an experimental dbus interface.
111 For dbus support you need jni/unix-java.so installed on your system (Debian: libunixsocket-java ArchLinux: libmatthew-unix-java (AUR)).
113 * Run in daemon mode (dbus session bus)
115 signal-cli -u USERNAME daemon
117 * Send a message via dbus
119 signal-cli --dbus send -m "Message" [RECIPIENT [RECIPIENT ...]] [-a [ATTACHMENT [ATTACHMENT ...]]]
123 To run on the system bus you need to take some additional steps.
124 It’s advisable to run signal-cli as a separate unix user, the following steps assume you created a user named *signal-cli*.
125 These steps, executed as root, should work on all distributions using systemd.
128 cp data/org.asamk.Signal.conf /etc/dbus-1/system.d/
129 cp data/org.asamk.Signal.service /usr/share/dbus-1/system-services/
130 cp data/signal.service /etc/systemd/system/
131 sed -i -e "s|%dir%|<INSERT_INSTALL_PATH>|" -e "s|%number%|<INSERT_YOUR_NUMBER>|" /etc/systemd/system/signal.service
132 systemctl daemon-reload
133 systemctl enable signal.service
134 systemctl reload dbus.service
137 Then just execute the send command from above, the service will be autostarted by dbus the first time it is requested.
141 The password and cryptographic keys are created when registering and stored in the current users home directory:
143 $HOME/.config/signal/data/
145 For legacy users, the old config directory is used as a fallback:
147 $HOME/.config/textsecure/data/
151 This project uses
[Gradle](http://gradle.org) for building and maintaining
152 dependencies. If you have a recent gradle version installed, you can replace
`./gradlew` with
`gradle` in the following steps.
154 1. Checkout the source somewhere on your filesystem with
156 git clone https://github.com/AsamK/signal-cli.git
162 3. Create shell wrapper in *build/install/signal-cli/bin*:
164 ./gradlew installDist
166 4. Create tar file in *build/distributions*:
171 If you use a version of the Oracle JRE and get an InvalidKeyException you need to enable unlimited strength crypto. See https://stackoverflow.com/questions/
6481627/java-security-illegal-key-size-or-default-parameters for instructions.
175 This project uses libsignal-service-java from Open Whisper Systems:
177 https://github.com/WhisperSystems/libsignal-service-java
179 Licensed under the GPLv3: http://www.gnu.org/licenses/gpl-
3.0.html