90 lines
2.5 KiB
Markdown
90 lines
2.5 KiB
Markdown
---
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title: P2P Matrix
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nav_exclude: true
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---
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# P2P Matrix
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These are the instructions for setting up P2P Dendrite, current as of May 2020. There's both Go stuff and JS stuff to do to set this up.
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## Dendrite
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### Build
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- The `main` branch has a WASM-only binary for dendrite: `./cmd/dendritejs`.
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- Build it and copy assets to riot-web.
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```
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./build-dendritejs.sh
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cp bin/main.wasm ../riot-web/src/vector/dendrite.wasm
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```
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### Test
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To check that the Dendrite side is working well as Wasm, you can run the
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Wasm-specific tests:
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```
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./test-dendritejs.sh
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```
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## Rendezvous
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This is how peers discover each other and communicate.
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By default, Dendrite uses the Matrix-hosted websocket star relay server at TODO `/dns4/ws-star.discovery.libp2p.io/tcp/443/wss/p2p-websocket-star`.
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This is currently hard-coded in `./cmd/dendritejs/main.go` - you can also use a local one if you run your own relay:
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```
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npm install --global libp2p-websocket-star-rendezvous
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rendezvous --port=9090 --host=127.0.0.1
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```
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Then use `/ip4/127.0.0.1/tcp/9090/ws/p2p-websocket-star/`.
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## Riot-web
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You need to check out this repo:
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```
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git clone git@github.com:matrix-org/go-http-js-libp2p.git
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```
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Make sure to `yarn install` in the repo. Then:
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- `$ cp "$(go env GOROOT)/misc/wasm/wasm_exec.js" ./src/vector/`
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- Comment out the lines in `wasm_exec.js` which contains:
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```
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if (!global.fs && global.require) {
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global.fs = require("fs");
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}
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```
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- Add the diff at <https://github.com/vector-im/riot-web/compare/matthew/p2p?expand=1> - ignore the `package.json` stuff.
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- Add the following symlinks: they HAVE to be symlinks as the diff in `webpack.config.js` references specific paths.
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```
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cd node_modules
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ln -s ../../go-http-js-libp2p
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```
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NB: If you don't run the server with `yarn start` you need to make sure your server is sending the header `Service-Worker-Allowed: /`.
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TODO: Make a Docker image with all of this in it and a volume mount for `dendrite.wasm`.
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## Running
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You need a Chrome and a Firefox running to test locally as service workers don't work in incognito tabs.
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- For Chrome, use `chrome://serviceworker-internals/` to unregister/see logs.
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- For Firefox, use `about:debugging#/runtime/this-firefox` to unregister. Use the console window to see logs.
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Assuming you've `yarn start`ed Riot-Web, go to `http://localhost:8080` and register with `http://localhost:8080` as your HS URL.
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You can:
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- join rooms by room alias e.g `/join #foo:bar`.
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- invite specific users to a room.
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- explore the published room list. All members of the room can re-publish aliases (unlike Synapse).
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