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matrix-sms-bridge

This is a matrix bridge, which allows you to bridge matrix rooms to SMS with one telephone number only. It is build on top of matrix-spring-boot-sdk and written in kotlin.

You need help? Ask your questions in #matrix-sms-bridge:imbitbu.de

Features:

User Guide

Automated room creation

Create a room with you and @smsBot:yourHomeServer.org only. Now you can write sms send --help which gives you a help, how to use this command.

Example: sms send -t 01749292923 "Hello World" creates a new room with the telephone number and writes "Hello World" for you. If there already is a room with this telephone number, and you are participating, then "Hello World" will be sent to that room.

Invite telephone number to matrix room

The virtual matrix users, which represents SMS numbers, have the following pattern:

@sms_49123456789:yourHomeServer.org

The number 49123456789 represents the international german telephone number +49123456789.

You can invite these users to every room, independently of the room members. So you can also invite more than one SMS number to rooms with more than one real matrix users.

Write to telephone numbers

After a room invite the virtual matrix users automatically join the room and every message to this room will be sent as SMS to the telephone number. The SMS contains a token (e.g. "#3"), which can be used in the answer of the SMS to route it back to the matrix room.

What if the SMS user has no token?

The bridge can be configured to route all SMS without a valid token to a default matrix room. Note that you must invite @smsbot:yourHomeServer to this room.

Admin Guide

Configure Application Service

The Application Service gets configured with a yaml-file:

matrix:
  bridge:
    sms:
      # (optional) SMS messages without a valid token are routed to this room.
      # Note that you must invite @smsbot:yourHomeServer to this room.
      defaultRoomId: "!jNkGzAFIPWxxXLmhso:matrix-local"
      # (optional) Allows to map SMS messages without token, when there is only one room with this number. Default is true.
      # allowMappingWithoutToken: true
      # The default region to use for telephone numbers.
      defaultRegion: DE
      # (optional) The default timezone to use for `sms send` `-a` argument
      defaultTimeZone: Europe/Berlin
      # (optional) Allows you to enable one room alias for one telephone number. Default is false.
      # singleModeEnabled: false
      # (optional) In this section you can override the default templates.
      # templates:
        # See SmsBridgeProperties.kt for the keys.
  bot:
    # The domain-part of matrix-ids. E. g. example.org when your userIds look like @unicorn:example.org
    serverName: matrix-local
    # Database settings
    migration:
      url: jdbc:h2:file:/data/db/testdb
      username: sa
    database:
      url: r2dbc:h2:file:////data/db/testdb
      username: sa
  client:
    homeServer:
      # The hostname of your Homeserver.
      hostname: matrix-synapse
      # (optional) The port of your Homeserver. Default is 443.
      port: 8008
      # (optional) Use http or https. Default is true (so uses https).
      secure: false
    # The token to authenticate against the Homeserver.
    token: asToken
  appservice:
    # A unique token for Homeservers to use to authenticate requests to this application service.
    hsToken: hsToken

Configure HomeServer

Add this to your synapse homeserver.yaml:

app_service_config_files:
  - /path/to/sms-bridge-appservice.yaml

sms-bridge-appservice.yaml looks like:

id: "SMS Bridge"
url: "http://url-to-sms-bridge:8080"
as_token: asToken
hs_token: hsToken
sender_localpart: "smsbot"
namespaces:
  users:
    - exclusive: true
      regex: "^@sms_.+:yourHomeServerDomain$"
  aliases:
    - exclusive: true
      regex: "^#sms_.+:yourHomeServerDomain$"
  rooms: []

Configure Provider

If you want your SMS gateway provider to be supported, look into the package provider to see how you can add your own provider to this bridge.

android-sms-gateway-server

You need to add some properties to the Application Service yaml-file:

matrix:
  bridge:
    sms:
      provider:
        android:
          # (optional) default is disabled
          enabled: true
          # The url to the android-sms-gateway-server
          baseUrl: https://192.168.25.26:9090
          # The username of the gateway
          username: admin
          # The password of the gateway
          password: 123
          # (optional) if you use a self signed certificate, you can add the public key here
          trustStore:
            path: /data/matrix-sms-bridge-android.p12
            password: 123
            type: PKCS12

Gammu

First you need to add some properties to the Application Service yaml-file:

matrix:
  bridge:
    sms:
      provider:
        gammu:
          # (optional) default is disabled
          enabled: true
          # (optional) Path to the Gammu-Inbox directory. Default is "/data/spool/inbox".
          inboxPath: "/data/spool/inbox"
          # (optional) Path to the directory, where to put processed messages. Default is "/data/spool/inbox_processed".
          inboxProcessedPath: "/data/spool/inbox_processed"

Your gammu-smsdrc should look like this:

[gammu]
Device = /dev/ttyModem
LogFile = /data/log/gammu.log
debugLevel = 1

[smsd]
Service = files
LoopSleep = 3
InboxPath = /data/spool/inbox/
OutboxPath = /data/spool/outbox/
SentSMSPath = /data/spool/sent/
ErrorSMSPath = /data/spool/error/
InboxFormat = detail
OutboxFormat = detail
TransmitFormat = auto
debugLevel = 1
LogFile = /data/log/smsd.log
DeliveryReport = log
DeliveryReportDelay = 7200
HangupCalls = 1
CheckBattery = 0

Using Docker container

There are two types of docker-containers. One, that is bundled with Gammu and one without:

To see, how a docker setup of the bridge could look like, have a look at the examples.