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WebRTC数据通道服务器向客户端进行UDP通信。目前有可能吗？

[英]WebRTC Data Channel server to clients UDP communication. Is it currently possible?

原文 2014-03-15 02:49:31 4 2 javascript/ node.js/ udp/ webrtc

Is it possible to use WebRTC Data Channels on Node.js in a way that mimics the functionality of WebSockets except using UDP? 是否可以在Node.js上使用WebRTC数据通道，以模仿除了使用UDP之外的WebSockets的功能？

In essence I want to have a server running Node.js with which browser clients can establish a full duplex bi directional UDP connection via JavaScript. 本质上，我希望有一个运行Node.js的服务器，浏览器客户端可以通过JavaScript建立全双工双向UDP连接。

My question is the same as this one from 8 months ago. 我的问题是一样的这一个从8个月前。 I repost it because the only answer was : 我重新发布它是因为唯一的答案是：

Yes, in theory you should be able to to do this. 是的，理论上你应该能够做到这一点。 However, you'll need a node module that supports WebRTC data channels, so that you can connect to it like any other peer. 但是，您需要一个支持WebRTC数据通道的节点模块，以便您可以像任何其他对等方一样连接到它。 Unfortunately, scanning through the current modules, I don't see one that implements the data channel. 不幸的是，扫描当前模块，我没有看到实现数据通道的模块。

Any of you know of such a module ? 你们谁知道这样的模块？ In my search I found some node modules with the words "webrtc" and "datachannel", but they didn't look like what was needed, they looked like they were meant for specific needs. 在我的搜索中，我发现了一些带有“webrtc”和“datachannel”字样的节点模块，但它们看起来并不像需要的东西，它们看起来像是出于特定需求。

2 个解决方案

This project is very active, and seem to undertake the mission of importing the entire WebRTC stack into node.js There's also this project but it looks pretty inactive. 这个项目非常活跃，似乎承担了将整个WebRTC堆栈导入node.js的任务。还有这个项目，但它看起来非常不活跃。

Would love to know if that was satisfying and if you're doing such a project (as in the question) please link to github :) 很想知道这是否令人满意，如果你正在做这样的项目（如在问题中）请链接到github :)

We have implemented the exact same thing: a server/client way of using WebRTC. 我们实现了完全相同的东西：服务器/客户端使用WebRTC的方式。 Besides we also implemented data port multiplexing, so that server would only need to expose one data port for all rtcdata channels. 此外，我们还实现了数据端口多路复用，因此服务器只需要为所有rtcdata通道公开一个数据端口。

A quick summary of how it is achieved: 快速总结如何实现：

We implemented in nodejs, using wrtc library. 我们使用wrtc库在nodejs中实现。 But the same principal could be applied to other implementations. 但是同样的原则可以应用于其他实现。
The server exposes a control port, so that the client will exchange SDPs with the server for establishing their data channel. 服务器公开控制端口，以便客户端与服务器交换SDP以建立其数据通道。
To support data port multiplexing, At the server, we modify both peer's SDK, so that 为了支持数据端口多路复用，我们在服务器上修改了对等的SDK，以便这样做
1. Client will always connect to the same server ip:data_port 客户端将始终连接到同一服务器ip：data_port
2. We implement a UDP data proxy inside the server, so that it can be the bridge between the server webrtc engine and the client. 我们在服务器内部实现UDP数据代理，这样它就可以成为服务器webrtc引擎和客户端之间的桥梁。