out-of-your-element/matrix/mreq.js

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// @ts-check
const fetch = require("node-fetch").default
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const mixin = require("mixin-deep")
const passthrough = require("../passthrough")
const { sync } = passthrough
/** @type {import("./read-registration")} */
const reg = sync.require("./read-registration.js")
const baseUrl = "https://matrix.cadence.moe/_matrix"
class MatrixServerError extends Error {
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constructor(data, opts) {
super(data.error || data.errcode)
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this.data = data
/** @type {string} */
this.errcode = data.errcode
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this.opts = opts
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}
}
/**
* @param {string} method
* @param {string} url
* @param {any} [body]
* @param {any} [extra]
*/
async function mreq(method, url, body, extra = {}) {
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const opts = mixin({
method,
body: (body == undefined || Object.is(body.constructor, Object)) ? JSON.stringify(body) : body,
headers: {
Authorization: `Bearer ${reg.as_token}`
}
}, extra)
// console.log(baseUrl + url, opts)
const res = await fetch(baseUrl + url, opts)
const root = await res.json()
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if (!res.ok || root.errcode) throw new MatrixServerError(root, opts)
return root
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}
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/**
* JavaScript doesn't have Racket-like parameters with dynamic scoping, so
* do NOT do anything else at the same time as this.
* @template T
* @param {string} token
* @param {(...arg: any[]) => Promise<T>} callback
* @returns {Promise<T>}
*/
async function withAccessToken(token, callback) {
const prevToken = reg.as_token
reg.as_token = token
try {
return await callback()
} finally {
reg.as_token = prevToken
}
}
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module.exports.MatrixServerError = MatrixServerError
module.exports.mreq = mreq
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module.exports.withAccessToken = withAccessToken