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Noia webrtc-direct implementation: use WebRTC rtcdatachannel in a server/client fashion.

License: GNU Lesser General Public License v2.1

HTML 5.55% JavaScript 1.54% TypeScript 92.91%

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Create webrtc-direct server/client classes

Specification

*server (noia node uses) *
   server = new WebRTCDirect.Server({ control_port: ... })
   server.on("connection", channel => {
       conn.on("data|error|closed", event => { ... })
       conn.send(data: Buffer);
   })

* client (browser and webrtc-enabled apps uses) *
   client = new WebRTCDirect.Client({ server_address: '{ip/domain}:{control_port} })
   client.on("established", ...)
   client.request(req);
   client.on("connection_failed", ...)
   client.on("data", ...)
   client.close();
   client.on("closed", ...)
   client.on("error", ...)

References

minimal demo: https://github.com/decentral-ee/server-rtcdatachannel-example
more complex: https://github.com/libp2p/js-libp2p-webrtc-direct

Implement the data ports multiplexing

For webrtc-direct server:

Internal STUN server should return always the same public_ip/public_data_port to the webrtc stack
A proxy service that maps external client connections to the webrtc peer connection.

[BUG (FF?)] - ICE failed, add a STUN server and see about:webrtc for more details

I have no ideas if this belongs here. Chrome works perfectly but Firefox give me this error.

Session statistic

ICE restarts: 0
ICE rollbacks: 0
All Raw Candidates
▼ show raw candidates
SDP
Local SDP (Answer)

v=0

o=mozilla...THIS_IS_SDPARTA-62.0 6866766487362527213 0 IN IP4 0.0.0.0

s=-

t=0 0

a=sendrecv

a=fingerprint:sha-256 A7:C5:BD:7E:EB:1F:BD:80:D7:6C:FF:25:88:32:11:C9:E3:85:70:95:8A:09:06:3F:85:A3:A0:71:E8:3B:B4:48

a=group:BUNDLE data

a=ice-options:trickle

a=msid-semantic:WMS *

m=application 47176 DTLS/SCTP 5000

c=IN IP4 192.168.1.4

a=candidate:0 1 UDP 2122252543 192.168.1.4 47176 typ host

a=candidate:1 1 TCP 2105524479 192.168.1.4 9 typ host tcptype active

a=sendrecv

a=end-of-candidates

a=ice-pwd:8a9ccbe078d78c82c8079ac59a078f25

a=ice-ufrag:ada25e7f

a=mid:data

a=sctpmap:5000 webrtc-datachannel 256

a=setup:active

a=max-message-size:1073741823

Remote SDP (Offer)

v=0

o=- 8485368344310746573 2 IN IP4 127.0.0.1

s=-

t=0 0

a=sendrecv

a=group:BUNDLE data

a=msid-semantic:WMS

m=application 9 DTLS/SCTP 5000

c=IN IP4 0.0.0.0

a=candidate:3022624816 1 udp 2122260223 127.0.0.1 60123 typ host generation 0 ufrag 7O3T network-id 3 network-cost 50

a=sendrecv

a=fingerprint:sha-256 AA:8E:C9:B2:A3:AD:4B:2B:7A:A2:6E:4F:E1:6E:D8:67:96:31:62:7A:71:49:23:30:2D:56:DC:B7:CD:DD:F2:C0

a=ice-options:trickle

a=ice-pwd:G/wR62G0x742UwrTiJkA0/84

a=ice-ufrag:7O3T

a=mid:data

a=sctpmap:5000 webrtc-datachannel 1024

a=setup:actpass

RTP Stats

Connection log

Exit UDP socket connected

UDP socket error:Internal error at /builds/worker/workspace/build/src/dom/network/UDPSocketParent.cpp:286 this=0x7fdff4114400

/builds/worker/workspace/build/src/media/mtransport/third_party/nICEr/src/net/nr_socket_multi_tcp.c:617 function nr_socket_multi_tcp_listen failed with error 3

ICE(PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html)): failed to create passive TCP host candidate: 3

ICE(PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html)): peer (PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html):default) no streams with non-empty check lists

ICE(PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html)): peer (PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html):default) no streams with pre-answer requests

ICE(PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html)): peer (PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html):default) no checks to start

ICE(PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html)): peer (PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html):default) pairing local trickle ICE candidate host(IP4:192.168.1.4:47176/UDP)

ICE(PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html)): peer (PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html):default) pairing local trickle ICE candidate host(IP4:192.168.1.4:56777/TCP) active

ICE(PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html)): peer (PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html):default) Trickle grace period is over; marking every component with only failed pairs as failed.

ICE-PEER(PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html):default)/STREAM(0-1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html) aLevel=0)/COMP(1): All pairs are failed, and grace period has elapsed. Marking component as failed.

ICE-PEER(PC:1536702298721082 (id=4294967312 url=http://webrtc.local/echo.html):default): all checks completed success=0 fail=1

+++++++ END ++++++++

Create Ze WebRTC Direct Library

Use WebRTC rtcdatachannel in a server/client fashion.

Purpose:

Allow server to expose two ports to the public:
- webrtc_direct_control_port
- webrtc_direct_data_port
Allow websites to download data from p2p nodes without relying on the PKI infrustructure.

Requirements:

Separated into Server and Client classes
On server side: Create an internal stun server that can be configured to return a fixed public server ip and optionally a fixed public webrtc-direct data port for multiplexing purpose
On server side: When multiplexing is enabled, a proxy server is implemented to map client connections and webrtc connections

[FT] fallback to ws

If webRTC is not supported, I guess I should add a webSocket fallback in client/src/client.ts#21 ?

Could be nice for iOS users

Measure performance of the server

Measure how long it takes to open a new channel
Measure how many channels can be served simultaneously
Measure how much bandwidth can be served simultaneously
Measure with both multiplexing on and off

Implement STUN server within the library

Eliminate the dependencies of public stun servers
New parameter for server: server = new WebRTCDirect.Server({ control_port: ..., public_ip: ... })

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