epoxy-tls/README.md
Toshit Chawda cef912f86b
readme
2024-06-28 06:35:02 -07:00

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# epoxy
Epoxy is an encrypted proxy for browser javascript. It allows you to make requests that bypass CORS without compromising security, by running SSL/TLS inside webassembly.
## Using the client
Epoxy must be run from within a web worker and must be served with the [security headers needed for `SharedArrayBuffer`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer#security_requirements). Here is a simple usage example:
```javascript
import epoxy from "./epoxy-module-bundled.js";
import ROOTS from "./pkg/certs-module.js";
// or
// importScripts("epoxy-bundled.js");
// importScripts("certs.js");
const { EpoxyClient, EpoxyClientOptions } = await epoxy();
let options = new EpoxyClientOptions();
options.user_agent = navigator.userAgent;
let client = await new EpoxyClient("wss://localhost:4000", ROOTS, options);
let response = await client.fetch("https://httpbin.org/get");
console.log(await response.text());
```
See `client/demo.js` for more examples.
## Using the server
```
$ cargo r -r --bin epoxy-server -- --help
Implementation of the Wisp protocol in Rust, made for epoxy.
Usage: epoxy-server [OPTIONS]
Options:
--prefix <PREFIX> [default: ]
-p, --port <PORT> [default: 4000]
-b, --host <HOST> [default: 0.0.0.0]
-u, --unix-socket
-h, --help Print help
-V, --version Print version
```
You can listen on a unix socket by passing the `--unix-socket` flag and the unix socket path in the `--host` flag. Example:
```
cargo r -r -- -u -b "/home/user/epoxy-socket"
```
## Building
> [!IMPORTANT]
> Rust nightly is required.
### Server
```
cargo b -r --bin epoxy-server
```
The executable will be placed at `target/release/epoxy-server`.
### Client
> [!IMPORTANT]
> Building the client is only supported on Linux.
Make sure you have the `wasm32-unknown-unknown` rust target, the `rust-std` component, and the `wasm-bindgen`, `wasm-opt`, and `base64` binaries installed.
In the `client` directory:
```
bash build.sh
```
To host a local server with the required headers:
```
python3 serve.py
```