greencrab/libpurple-signald

Pidgin libpurple bridge to signald.

A libpurple/Pidgin plugin for signald (signal, formerly textsecure).

signald is written by Finn Herzfeld.

An unofficial IRC channel exists on Libera.chat called ##purple-signald for those who use it.

Windows users and Linux users averse to signald may take a peek at purple-signal.

Attention: As of September 2021, this plug-in is falling apart. I am annoyed by the number of protocol and API changes and I lack motivation keeping up with them.

Getting Started

See HOWTO.

Known Issues

There have been reports of incoming offline-messages getting lost. As far as I observed, they are not lost but delayed and delivered after a restart of signald.

Features

• Core features:

  • Receive messages
  • Send messages

• Additional features contributed by Hermann Kraus:

  • Receive files
  • Receive images
  • Send images
  • Receive buddy list from server

  Note: When signald is being run as a system service, downloaded files may not be accessible directly to the user. Do not forget to add yourself to the signald group.

• Additional features contributed by Torsten:

  • Link with the master device
    Note: For linking with the master device, qrencode needs to be installed.
  • Automatically start signald
    Note: For automatically starting signald as a child proces, signald needs to be in $PATH.
  • Group Avatars

• Additional features contributed by Brett Kosinski:

  • Support for group chats.
  • Fine-grained attachment handling (for bitlbee).

Missing Features

• signald configuration (i.e. initial number registration)
• Deleting buddies from the server
• Updating contact details
• Contact colors
• Expiring messages
• Messages with quotes

Security Considerations

UUIDs are used for local file access. If someone manages to forge UUIDs, bypassing all checks in Signal and signald, the wrong local files might be accessed, but I do not see that happening realistically.