Some users might want to host their own Threema Web instance. Here is a quick overview on how to achieve that.
The following components can be self-hosted:
- Threema Web
- SaltyRTC Server
- STUN / TURN Server
The push relay server could in theory be self-hosted too, but it won't help as the GCM / APNs API keys required to dispatch push notifications are not public.
If you have questions, please open an issue on Github.
Threema Web is a web application written in TypeScript with AngularJS 1. All that is required to host it is a web server that can deliver static content via https. We recommend using Nginx. Additionally, to build the release version yourself, a recent version of npm is required.
Note: The web server needs to set the proper MIME type for *.wasm
(WebAssembly) files. When using Nginx, add the following line to the types in
/etc/nginx/mime.types
:
application/wasm wasm;
If you're using Apache, add the following line to
/etc/apache2/mods-enabled/mime.conf
:
AddType application/wasm .wasm
When using Python, something like this should work.
You can get the source code from Github:
git clone https://github.com/threema-ch/threema-web.git
First, adjust the configuration in src/config.ts
:
- Set
SELF_HOSTED
totrue
- If you host your own SaltyRTC server, adjust the
SALTYRTC_*
variables - If you host your own STUN / TURN server, adjust the
ICE_SERVERS
variable
Make sure that you have the appropriate NodeJS version installed (see the
.nvmrc
file in the repository root).
Then, build the release version of Threema Web:
npm install --production
npm run dist
Finally, unpack the dist/threema-web-[VERSION].tar.gz
archive to your web server directory.
Make sure to serve Threema Web only via https. We also recommend to enable
HSTS, HPKP, CSP and other available security mechanisms in your web server.
If you don't want to build Threema Web yourself, you can also download a
pre-built release with the
SELF_HOSTED
variable set to true
, configured to use the Threema
SaltyRTC/STUN/TURN servers.
Cryptographic signatures are provided for the downloads.
If you're interested in hosting Threema Web through Docker, check out the
docs/docker.md
file for more information.
For instructions on how to run your own SaltyRTC server, see https://github.com/saltyrtc/saltyrtc-server-python
You can run any WebRTC-compliant STUN / TURN server, e.g. coturn.
While you could in theory host your own version of the push server, it won't help much since the GCM / APNs API Keys required to dispatch push notifications to the Threema app are not public.
You can review the code on Github though: https://github.com/threema-ch/push-relay