mirror of
https://github.com/n8n-io/n8n.git
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240 lines
8.1 KiB
TypeScript
240 lines
8.1 KiB
TypeScript
import {
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OptionsWithUri,
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} from 'request';
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import { IDataObject } from 'n8n-workflow';
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import {
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BINARY_ENCODING,
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IExecuteFunctions,
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IExecuteSingleFunctions,
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ILoadOptionsFunctions,
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} from 'n8n-core';
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import * as _ from 'lodash';
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import * as uuid from 'uuid/v4';
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interface MessageResponse {
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chunk: Message[];
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}
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interface Message {
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content: object;
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room_id: string;
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sender: string;
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type: string;
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user_id: string;
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}
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export async function matrixApiRequest(this: IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions, method: string, resource: string, body: string | object = {}, query: object = {}, headers: {} | undefined = undefined, option: {} = {}): Promise<any> { // tslint:disable-line:no-any
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let options: OptionsWithUri = {
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method,
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headers: headers || {
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'Content-Type': 'application/json; charset=utf-8',
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},
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body,
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qs: query,
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uri: '',
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json: true,
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};
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options = Object.assign({}, options, option);
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if (Object.keys(body).length === 0) {
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delete options.body;
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}
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if (Object.keys(query).length === 0) {
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delete options.qs;
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}
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try {
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let response: any; // tslint:disable-line:no-any
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const credentials = this.getCredentials('matrixApi');
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if (credentials === undefined) {
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throw new Error('No credentials got returned!');
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}
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//@ts-ignore
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options.uri = `${credentials.homeserverUrl}/_matrix/${option.overridePrefix || 'client'}/r0${resource}`;
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options.headers!.Authorization = `Bearer ${credentials.accessToken}`;
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//@ts-ignore
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response = await this.helpers.request(options);
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// When working with images, the request cannot be JSON (it's raw binary data)
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// But the output is JSON so we have to parse it manually.
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//@ts-ignore
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return options.overridePrefix === 'media' ? JSON.parse(response) : response;
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} catch (error) {
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if (error.statusCode === 401) {
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// Return a clear error
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throw new Error('Matrix credentials are not valid!');
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}
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if (error.response && error.response.body && error.response.body.error) {
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// Try to return the error prettier
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throw new Error(`Matrix error response [${error.statusCode}]: ${error.response.body.error}`);
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}
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// If that data does not exist for some reason return the actual error
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throw error;
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}
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}
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export async function handleMatrixCall(this: IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions, item: IDataObject, index: number, resource: string, operation: string): Promise<any> { // tslint:disable-line:no-any
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if (resource === 'account') {
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if (operation === 'me') {
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return await matrixApiRequest.call(this, 'GET', '/account/whoami');
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}
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}
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else if (resource === 'room') {
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if (operation === 'create') {
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const name = this.getNodeParameter('roomName', index) as string;
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const preset = this.getNodeParameter('preset', index) as string;
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const roomAlias = this.getNodeParameter('roomAlias', index) as string;
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const body: IDataObject = {
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name,
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preset,
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};
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if (roomAlias) {
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body.room_alias_name = roomAlias;
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}
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return await matrixApiRequest.call(this, 'POST', `/createRoom`, body);
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} else if (operation === 'join') {
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const roomIdOrAlias = this.getNodeParameter('roomIdOrAlias', index) as string;
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return await matrixApiRequest.call(this, 'POST', `/rooms/${roomIdOrAlias}/join`);
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} else if (operation === 'leave') {
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const roomId = this.getNodeParameter('roomId', index) as string;
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return await matrixApiRequest.call(this, 'POST', `/rooms/${roomId}/leave`);
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} else if (operation === 'invite') {
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const roomId = this.getNodeParameter('roomId', index) as string;
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const userId = this.getNodeParameter('userId', index) as string;
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const body: IDataObject = {
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user_id: userId,
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};
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return await matrixApiRequest.call(this, 'POST', `/rooms/${roomId}/invite`, body);
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} else if (operation === 'kick') {
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const roomId = this.getNodeParameter('roomId', index) as string;
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const userId = this.getNodeParameter('userId', index) as string;
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const reason = this.getNodeParameter('reason', index) as string;
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const body: IDataObject = {
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user_id: userId,
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reason,
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};
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return await matrixApiRequest.call(this, 'POST', `/rooms/${roomId}/kick`, body);
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}
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} else if (resource === 'message') {
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if (operation === 'create') {
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const roomId = this.getNodeParameter('roomId', index) as string;
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const text = this.getNodeParameter('text', index) as string;
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const body: IDataObject = {
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msgtype: 'm.text',
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body: text,
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};
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const messageId = uuid();
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return await matrixApiRequest.call(this, 'PUT', `/rooms/${roomId}/send/m.room.message/${messageId}`, body);
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} else if (operation === 'getAll') {
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const roomId = this.getNodeParameter('roomId', index) as string;
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const returnAll = this.getNodeParameter('returnAll', index) as boolean;
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const otherOptions = this.getNodeParameter('otherOptions', index) as IDataObject;
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const returnData: IDataObject[] = [];
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if (returnAll) {
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let responseData;
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let from;
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do {
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const qs: IDataObject = {
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dir: 'b', // Get latest messages first - doesn't return anything if we use f without a previous token.
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from,
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};
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if (otherOptions.filter) {
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qs.filter = otherOptions.filter;
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}
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responseData = await matrixApiRequest.call(this, 'GET', `/rooms/${roomId}/messages`, {}, qs);
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returnData.push.apply(returnData, responseData.chunk);
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from = responseData.end;
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} while (responseData.chunk.length > 0);
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} else {
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const limit = this.getNodeParameter('limit', index) as number;
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const qs: IDataObject = {
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dir: 'b', // Get latest messages first - doesn't return anything if we use f without a previous token.
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limit,
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};
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if (otherOptions.filter) {
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qs.filter = otherOptions.filter;
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}
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const responseData = await matrixApiRequest.call(this, 'GET', `/rooms/${roomId}/messages`, {}, qs);
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returnData.push.apply(returnData, responseData.chunk);
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}
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return returnData;
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}
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} else if (resource === 'event') {
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if (operation === 'get') {
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const roomId = this.getNodeParameter('roomId', index) as string;
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const eventId = this.getNodeParameter('eventId', index) as string;
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return await matrixApiRequest.call(this, 'GET', `/rooms/${roomId}/event/${eventId}`);
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}
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} else if (resource === 'media') {
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if (operation === 'upload') {
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const roomId = this.getNodeParameter('roomId', index) as string;
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const mediaType = this.getNodeParameter('mediaType', index) as string;
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const binaryPropertyName = this.getNodeParameter('binaryPropertyName', index) as string;
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let body;
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const qs: IDataObject = {};
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const headers: IDataObject = {};
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let filename;
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if (item.binary === undefined
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//@ts-ignore
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|| item.binary[binaryPropertyName] === undefined) {
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throw new Error(`No binary data property "${binaryPropertyName}" does not exists on item!`);
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}
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//@ts-ignore
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qs.filename = item.binary[binaryPropertyName].fileName;
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//@ts-ignore
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filename = item.binary[binaryPropertyName].fileName;
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//@ts-ignore
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body = Buffer.from(item.binary[binaryPropertyName].data, BINARY_ENCODING);
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//@ts-ignore
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headers['Content-Type'] = item.binary[binaryPropertyName].mimeType;
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headers['accept'] = 'application/json,text/*;q=0.99';
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const uploadRequestResult = await matrixApiRequest.call(this, 'POST', `/upload`, body, qs, headers, {
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overridePrefix: 'media',
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json: false,
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});
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body = {
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msgtype: `m.${mediaType}`,
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body: filename,
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url: uploadRequestResult.content_uri,
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};
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const messageId = uuid();
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return await matrixApiRequest.call(this, 'PUT', `/rooms/${roomId}/send/m.room.message/${messageId}`, body);
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}
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} else if (resource === 'roomMember') {
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if (operation === 'getAll') {
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const roomId = this.getNodeParameter('roomId', index) as string;
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const filters = this.getNodeParameter('filters', index) as IDataObject;
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const qs: IDataObject = {
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membership: filters.membership ? filters.membership : '',
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not_membership: filters.notMembership ? filters.notMembership : '',
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};
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const roomMembersResponse = await matrixApiRequest.call(this, 'GET', `/rooms/${roomId}/members`, {}, qs);
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return roomMembersResponse.chunk;
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}
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}
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throw new Error('Not implemented yet');
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}
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