Remove federtaed argument
This commit is contained in:
Jorik Schellekens
parent
14e22d41dc
commit
5b2c36833c
3 changed files with 205 additions and 227 deletions
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@ -1,3 +1,5 @@
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/* eslint-disable no-fallthrough */
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import {
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parseHash,
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parsePermalink,
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@ -7,59 +9,43 @@ import {
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toURL,
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} from "./parser";
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import { LinkDiscriminator } from "./types";
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import { LinkKind } from "./types";
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function identifierType(id: string) {
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return identifyTypeFromRegex(id, verifiers, LinkDiscriminator.ParseFailed);
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}
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const identifierType = (id: string): LinkKind =>
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identifyTypeFromRegex(id, verifiers, LinkKind.ParseFailed);
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it("types identifiers correctly", () => {
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expect(identifierType("@user:matrix.org")).toEqual(LinkDiscriminator.UserId);
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expect(identifierType("!room:matrix.org")).toEqual(LinkDiscriminator.RoomId);
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expect(identifierType("@user:matrix.org")).toEqual(LinkKind.UserId);
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expect(identifierType("!room:matrix.org")).toEqual(LinkKind.RoomId);
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expect(identifierType("!somewhere:example.org/$event:example.org")).toEqual(
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LinkDiscriminator.Permalink
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LinkKind.Permalink
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);
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expect(identifierType("+group:matrix.org")).toEqual(
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LinkDiscriminator.GroupId
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);
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expect(identifierType("#alias:matrix.org")).toEqual(LinkDiscriminator.Alias);
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expect(identifierType("+group:matrix.org")).toEqual(LinkKind.GroupId);
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expect(identifierType("#alias:matrix.org")).toEqual(LinkKind.Alias);
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});
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it("types garbage as such", () => {
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expect(identifierType("sdfa;fdlkja")).toEqual(LinkDiscriminator.ParseFailed);
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expect(identifierType("$event$matrix.org")).toEqual(
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LinkDiscriminator.ParseFailed
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);
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expect(identifierType("/user:matrix.org")).toEqual(
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LinkDiscriminator.ParseFailed
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);
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expect(identifierType("sdfa;fdlkja")).toEqual(LinkKind.ParseFailed);
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expect(identifierType("$event$matrix.org")).toEqual(LinkKind.ParseFailed);
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expect(identifierType("/user:matrix.org")).toEqual(LinkKind.ParseFailed);
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});
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it("parses vias", () => {
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it("parses args correctly", () => {
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expect(
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parseArgs("via=example.org&via=alt.example.org")
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).toHaveProperty("vias", ["example.org", "alt.example.org"]);
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});
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it("parses sharer", () => {
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expect(parseArgs("sharer=blah")).toHaveProperty("sharer", "blah");
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});
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it("parses client", () => {
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expect(parseArgs("client=blah.com")).toHaveProperty("client", "blah.com");
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});
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it("parses federated", () => {
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expect(parseArgs("federated=true")).toHaveProperty("federated", true);
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expect(parseArgs("federated=false")).toHaveProperty("federated", false);
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});
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it("parses permalinks", () => {
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expect(parsePermalink("!somewhere:example.org/$event:example.org")).toEqual({
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roomKind: LinkDiscriminator.RoomId,
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expect(parsePermalink("!somewhere:example.org/$event:example.org")).toEqual(
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{
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roomKind: LinkKind.RoomId,
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roomLink: "!somewhere:example.org",
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eventId: "$event:example.org",
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});
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}
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);
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});
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it("formats links correctly", () => {
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@ -70,7 +56,7 @@ it("formats links correctly", () => {
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const parse = parseHash(bigLink);
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switch (parse.kind) {
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case LinkDiscriminator.ParseFailed:
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case LinkKind.ParseFailed:
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fail("Parse failed");
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default:
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expect(toURL(origin, parse).toString()).toEqual(prefix + bigLink);
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@ -1,13 +1,98 @@
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import forEach from "lodash/forEach";
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import {
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LinkDiscriminator,
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LinkKind,
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SafeLink,
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Link,
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LinkContent,
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Arguments,
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Permalink,
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} from "./types";
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/*
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* Verifiers are regexes which will match valid
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* identifiers to their type. (This is a lie, they
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* can return anything)
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*/
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type Verifier<A> = [RegExp, A];
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export const roomVerifiers: Verifier<LinkKind.Alias | LinkKind.RoomId>[] = [
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[/^#([^/:]+?):(.+)$/, LinkKind.Alias],
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[/^!([^/:]+?):(.+)$/, LinkKind.RoomId],
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];
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export const verifiers: Verifier<LinkKind>[] = [
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[/^[!#]([^/:]+?):(.+?)\/\$([^/:]+?):(.+?)$/, LinkKind.Permalink],
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[/^@([^/:]+?):(.+)$/, LinkKind.UserId],
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[/^\+([^/:]+?):(.+)$/, LinkKind.GroupId],
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...roomVerifiers,
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];
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/*
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* identifyTypeFromRegex applies the verifiers to the identifier and
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* returns the identifier's type
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*/
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export function identifyTypeFromRegex<T, F>(
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identifier: string,
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verifiers: Verifier<T>[],
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fail: F
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): T | F {
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if (identifier !== encodeURI(identifier)) {
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return fail;
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}
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return verifiers.reduce<T | F>((kind, verifier) => {
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if (kind !== fail) {
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return kind;
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}
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if (identifier.match(verifier[0])) {
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return verifier[1];
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}
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return kind;
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}, fail);
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}
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/*
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* Parses a permalink.
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* Assumes the permalink is correct.
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*/
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export function parsePermalink(identifier: string): Permalink {
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const [roomLink, eventId] = identifier.split("/");
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const roomKind = identifyTypeFromRegex(
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roomLink,
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roomVerifiers,
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// This is hacky but we're assuming identifier is a valid permalink
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LinkKind.Alias
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);
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return {
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roomKind,
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roomLink,
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eventId,
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};
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}
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/*
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* Repalces null with undefined
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*/
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function bottomExchange<T>(nullable: T | null): T | undefined {
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if (nullable === null) return undefined;
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return nullable;
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}
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/*
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* parseArgs parses the <extra args> part of matrix.to links
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*/
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export function parseArgs(args: string): Arguments {
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const params = new URLSearchParams(args);
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return {
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vias: params.getAll("via"),
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client: bottomExchange(params.get("client")),
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sharer: bottomExchange(params.get("sharer")),
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};
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}
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/*
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* parseLink takes a striped matrix.to hash link (without the '#/' prefix)
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* and parses into a Link. If the parse failed the result will
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@ -19,16 +104,16 @@ export function parseHash(hash: string): Link {
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const kind = identifyTypeFromRegex(
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identifier,
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verifiers,
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LinkDiscriminator.ParseFailed
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LinkKind.ParseFailed
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);
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let parsedLink: LinkContent = {
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const parsedLink: LinkContent = {
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identifier,
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arguments: parseArgs(args),
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originalLink: hash,
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};
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if (kind === LinkDiscriminator.Permalink) {
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if (kind === LinkKind.Permalink) {
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const { roomKind, roomLink, eventId } = parsePermalink(identifier);
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return {
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@ -46,68 +131,25 @@ export function parseHash(hash: string): Link {
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};
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}
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/*
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* Parses a permalink.
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* Assumes the permalink is correct.
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*/
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export function parsePermalink(identifier: string) {
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const [roomLink, eventId] = identifier.split("/");
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const roomKind = identifyTypeFromRegex(
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roomLink,
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roomVerifiers,
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// This is hacky but we're assuming identifier is a valid permalink
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LinkDiscriminator.Alias
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);
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return {
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roomKind,
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roomLink,
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eventId,
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};
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}
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/*
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* parseArgs parses the <extra args> part of matrix.to links
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*/
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export function parseArgs(args: string): Arguments {
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const params = new URLSearchParams(args);
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const _federated = params.get("federated");
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const federated = _federated !== null ? _federated === "true" : null;
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return {
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vias: params.getAll("via"),
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federated: bottomExchange(federated),
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client: bottomExchange(params.get("client")),
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sharer: bottomExchange(params.get("sharer")),
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};
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}
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/*
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* Repalces null with undefined
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*/
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function bottomExchange<T>(nullable: T | null): T | undefined {
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if (nullable === null) return undefined;
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return nullable;
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}
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/*
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* toURI converts a Link to a url. It's recommended
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* to use the original link instead of toURI if it existed.
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* This is handy function in case the Link was constructed.
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*/
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export function toURL(origin: string, link: SafeLink): URL {
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switch (link.kind) {
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case LinkDiscriminator.GroupId:
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case LinkDiscriminator.UserId:
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case LinkDiscriminator.RoomId:
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case LinkDiscriminator.Alias:
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case LinkDiscriminator.Permalink:
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const params = new URLSearchParams();
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const url = new URL(origin);
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switch (link.kind) {
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case LinkKind.GroupId:
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case LinkKind.UserId:
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case LinkKind.RoomId:
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case LinkKind.Alias:
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case LinkKind.Permalink:
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forEach(link.arguments, (value, key) => {
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if (value === undefined) {
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// do nothing
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} else if (key === "vias") {
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(<string[]>(<unknown>value)).forEach((via) =>
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(value as string[]).forEach((via) =>
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params.append("via", via)
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);
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} else {
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@ -115,53 +157,7 @@ export function toURL(origin: string, link: SafeLink): URL {
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}
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});
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const url = new URL(origin);
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url.hash = `/${link.identifier}?${params.toString()}`;
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}
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return url;
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}
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}
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/*
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* Verifiers are regexes which will match valid
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* identifiers to their type. (This is a lie, they
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* can return anything)
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*/
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type Verifier<A> = [RegExp, A];
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export const roomVerifiers: Verifier<
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LinkDiscriminator.Alias | LinkDiscriminator.RoomId
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>[] = [
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[/^#([^\/:]+?):(.+)$/, LinkDiscriminator.Alias],
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[/^!([^\/:]+?):(.+)$/, LinkDiscriminator.RoomId],
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];
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export const verifiers: Verifier<LinkDiscriminator>[] = [
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[/^[\!#]([^\/:]+?):(.+?)\/\$([^\/:]+?):(.+?)$/, LinkDiscriminator.Permalink],
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[/^@([^\/:]+?):(.+)$/, LinkDiscriminator.UserId],
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[/^\+([^\/:]+?):(.+)$/, LinkDiscriminator.GroupId],
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...roomVerifiers,
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];
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/*
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* identifyTypeFromRegex applies the verifiers to the identifier and
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* returns the identifier's type
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*/
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export function identifyTypeFromRegex<T, F>(
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identifier: string,
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verifiers: Verifier<T>[],
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fail: F
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): T | F {
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if (identifier !== encodeURI(identifier)) {
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return fail;
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}
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return verifiers.reduce<T | F>((discriminator, verifier) => {
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if (discriminator !== fail) {
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return discriminator;
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}
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if (identifier.match(verifier[0])) {
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return verifier[1];
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}
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return discriminator;
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}, fail);
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}
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@ -2,10 +2,6 @@ export interface Arguments {
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vias: string[];
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// Schemeless http identifier
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client?: string;
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// Indicates whether a room exists on a federating server (assumed to be the
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// default), or if the client must connect via the server identified by the
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// room ID or event ID
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federated?: boolean;
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// MXID
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sharer?: string;
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}
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@ -16,7 +12,7 @@ export interface LinkContent {
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originalLink: string;
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}
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export enum LinkDiscriminator {
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export enum LinkKind {
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Alias = "ALIAS",
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RoomId = "ROOM_ID",
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UserId = "USER_ID",
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@ -26,30 +22,30 @@ export enum LinkDiscriminator {
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}
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export interface Alias extends LinkContent {
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kind: LinkDiscriminator.Alias;
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kind: LinkKind.Alias;
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}
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export interface RoomId extends LinkContent {
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kind: LinkDiscriminator.RoomId;
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kind: LinkKind.RoomId;
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}
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export interface UserId extends LinkContent {
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kind: LinkDiscriminator.UserId;
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kind: LinkKind.UserId;
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}
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export interface GroupId extends LinkContent {
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kind: LinkDiscriminator.GroupId;
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kind: LinkKind.GroupId;
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}
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export interface Permalink extends LinkContent {
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kind: LinkDiscriminator.Permalink;
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roomKind: LinkDiscriminator.RoomId | LinkDiscriminator.Alias;
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kind: LinkKind.Permalink;
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roomKind: LinkKind.RoomId | LinkKind.Alias;
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roomLink: string;
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eventId: string;
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}
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export interface ParseFailed {
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kind: LinkDiscriminator.ParseFailed;
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kind: LinkKind.ParseFailed;
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originalLink: string;
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}
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