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112 lines
3.7 KiB
TypeScript
112 lines
3.7 KiB
TypeScript
import { OpenGroupV2Room } from '../../data/opengroups';
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import { OpenGroupRequestCommonType } from '../opengroupV2/ApiUtil';
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const protocolRegex = new RegExp('(https?://)?');
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const dot = '\\.';
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const qMark = '\\?';
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const hostnameRegex = new RegExp(
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`(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])${dot})*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])`
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);
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const portRegex = '(:[0-9]+)?';
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// roomIds allows between 2 and 64 of '0-9' or 'a-z' or '_' chars
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export const roomIdV2Regex = '[0-9a-z_]{2,64}';
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export const publicKeyRegex = '[0-9a-z]{64}';
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export const publicKeyParam = 'public_key=';
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export const openGroupV2ServerUrlRegex = new RegExp(
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`${protocolRegex.source}${hostnameRegex.source}${portRegex}`
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);
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/**
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* Regex to use to check if a string is a v2open completeURL with pubkey.
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* Be aware that the /g flag is not set as .test() will otherwise return alternating result
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*
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* see https://stackoverflow.com/a/9275499/1680951
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*/
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export const openGroupV2CompleteURLRegex = new RegExp(
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`${openGroupV2ServerUrlRegex.source}\/${roomIdV2Regex}${qMark}${publicKeyParam}${publicKeyRegex}`,
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'm'
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);
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/**
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* Just a constant to have less `publicChat:` everywhere.
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* This is the prefix used to identify our open groups in the conversation database (v1 or v2)
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* Note: It does already have the ':' included
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*/
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export const openGroupPrefix = 'publicChat:';
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/**
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* Just a regex to match a public chat (i.e. a string starting with publicChat:)
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*/
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export const openGroupPrefixRegex = new RegExp(`^${openGroupPrefix}`);
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export const openGroupV2ConversationIdRegex = new RegExp(
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`${openGroupPrefix}${roomIdV2Regex}@${protocolRegex.source}${hostnameRegex.source}${portRegex}`
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);
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/**
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* This function returns a full url on an open group v2 room used for sync messages for instance.
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* This is basically what the QRcode encodes
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*
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*/
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export function getCompleteUrlFromRoom(roomInfos: OpenGroupV2Room) {
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// serverUrl has the port and protocol already
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return `${roomInfos.serverUrl}/${roomInfos.roomId}?${publicKeyParam}${roomInfos.serverPublicKey}`;
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}
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/**
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* Prefix server with https:// if it's not already prefixed with http or https.
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*/
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export function prefixify(server: string, hasSSL: boolean = true): string {
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const hasPrefix = server.match('^https?://');
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if (hasPrefix) {
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return server;
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}
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return `http${hasSSL ? 's' : ''}://${server}`;
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}
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/**
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* No sql access. Just how our open groupv2 url looks like.
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* ServerUrl can have the protocol and port included, or not
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* @returns `${openGroupPrefix}${roomId}@${serverUrl}`
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*/
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export function getOpenGroupV2ConversationId(serverUrl: string, roomId: string) {
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if (!roomId.match(roomIdV2Regex)) {
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throw new Error('getOpenGroupV2ConversationId: Invalid roomId');
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}
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if (!serverUrl.match(openGroupV2ServerUrlRegex)) {
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throw new Error('getOpenGroupV2ConversationId: Invalid serverUrl');
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}
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return `${openGroupPrefix}${roomId}@${serverUrl}`;
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}
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/**
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* No sql access. Just plain string logic
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*/
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export function getOpenGroupV2FromConversationId(
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conversationId: string
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): OpenGroupRequestCommonType {
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if (isOpenGroupV2(conversationId)) {
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const atIndex = conversationId.indexOf('@');
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const roomId = conversationId.slice(openGroupPrefix.length, atIndex);
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const serverUrl = conversationId.slice(atIndex + 1);
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return {
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serverUrl,
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roomId,
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};
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}
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throw new Error('Not a v2 open group convo id');
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}
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/**
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* Check if this conversation id corresponds to an OpenGroupV2 conversation.
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* No access to database are made. Only regex matches
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* @param conversationId the convo id to evaluate
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* @returns true if this conversation id matches the Opengroupv2 conversation id regex
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*/
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export function isOpenGroupV2(conversationId: string) {
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return openGroupV2ConversationIdRegex.test(conversationId);
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}
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