Michael TelatynskiandGitHub
030b7e90bf
* Enable `@typescript-eslint/explicit-member-accessibility` on /src * Prettier * Enable `@typescript-eslint/explicit-function-return-type` in /src * Fix types * tsc strict fixes * Delint * Fix test * Fix bad merge
106 lines
3.8 KiB
TypeScript
106 lines
3.8 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import PermalinkConstructor, { PermalinkParts } from "./PermalinkConstructor";
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/**
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* Generates matrix: scheme permalinks
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*/
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export default class MatrixSchemePermalinkConstructor extends PermalinkConstructor {
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public constructor() {
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super();
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}
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private encodeEntity(entity: string): string {
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if (entity[0] === "!") {
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return `roomid/${entity.slice(1)}`;
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} else if (entity[0] === "#") {
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return `r/${entity.slice(1)}`;
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} else if (entity[0] === "@") {
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return `u/${entity.slice(1)}`;
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} else if (entity[0] === "$") {
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return `e/${entity.slice(1)}`;
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}
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throw new Error("Cannot encode entity: " + entity);
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}
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public forEvent(roomId: string, eventId: string, serverCandidates: string[]): string {
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return (
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`matrix:${this.encodeEntity(roomId)}` +
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`/${this.encodeEntity(eventId)}${this.encodeServerCandidates(serverCandidates)}`
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);
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}
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public forRoom(roomIdOrAlias: string, serverCandidates: string[]): string {
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return `matrix:${this.encodeEntity(roomIdOrAlias)}${this.encodeServerCandidates(serverCandidates)}`;
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}
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public forUser(userId: string): string {
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return `matrix:${this.encodeEntity(userId)}`;
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}
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public forEntity(entityId: string): string {
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return `matrix:${this.encodeEntity(entityId)}`;
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}
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public isPermalinkHost(testHost: string): boolean {
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// TODO: Change API signature to accept the URL for checking
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return testHost === "";
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}
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public encodeServerCandidates(candidates: string[]): string {
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if (!candidates || candidates.length === 0) return "";
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return `?via=${candidates.map((c) => encodeURIComponent(c)).join("&via=")}`;
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}
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public parsePermalink(fullUrl: string): PermalinkParts {
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if (!fullUrl || !fullUrl.startsWith("matrix:")) {
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throw new Error("Does not appear to be a permalink");
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}
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const parts = fullUrl.substring("matrix:".length).split("/");
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const identifier = parts[0];
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const entityNoSigil = parts[1];
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if (identifier === "u") {
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// Probably a user, no further parsing needed.
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return PermalinkParts.forUser(`@${entityNoSigil}`);
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} else if (identifier === "r" || identifier === "roomid") {
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const sigil = identifier === "r" ? "#" : "!";
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if (parts.length === 2) {
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// room without event permalink
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const [roomId, query = ""] = entityNoSigil.split("?");
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const via = query.split(/&?via=/g).filter((p) => !!p);
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return PermalinkParts.forRoom(`${sigil}${roomId}`, via);
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}
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if (parts[2] === "e") {
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// event permalink
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const eventIdAndQuery = parts.length > 3 ? parts.slice(3).join("/") : "";
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const [eventId, query = ""] = eventIdAndQuery.split("?");
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const via = query.split(/&?via=/g).filter((p) => !!p);
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return PermalinkParts.forEvent(`${sigil}${entityNoSigil}`, `$${eventId}`, via);
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}
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throw new Error("Faulty room permalink");
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} else {
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throw new Error("Unknown entity type in permalink");
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}
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}
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}
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