import type { OptionsWithUri } from 'request'; import type { IDataObject, IExecuteFunctions, ILoadOptionsFunctions, JsonObject, } from 'n8n-workflow'; import { NodeApiError, NodeOperationError } from 'n8n-workflow'; import { v4 as uuid } from 'uuid'; export async function matrixApiRequest( this: IExecuteFunctions | ILoadOptionsFunctions, method: string, resource: string, body: string | object = {}, query: object = {}, headers: IDataObject | undefined = undefined, option: IDataObject = {}, ) { let options: OptionsWithUri = { method, headers: headers || { 'Content-Type': 'application/json; charset=utf-8', }, body, qs: query, uri: '', json: true, }; options = Object.assign({}, options, option); if (Object.keys(body).length === 0) { delete options.body; } if (Object.keys(query).length === 0) { delete options.qs; } try { const credentials = await this.getCredentials('matrixApi'); options.uri = `${credentials.homeserverUrl}/_matrix/${ //@ts-ignore option.overridePrefix || 'client' }/r0${resource}`; options.headers!.Authorization = `Bearer ${credentials.accessToken}`; const response = await this.helpers.request(options); // When working with images, the request cannot be JSON (it's raw binary data) // But the output is JSON so we have to parse it manually. //@ts-ignore return options.overridePrefix === 'media' ? JSON.parse(response as string) : response; } catch (error) { throw new NodeApiError(this.getNode(), error as JsonObject); } } export async function handleMatrixCall( this: IExecuteFunctions, item: IDataObject, index: number, resource: string, operation: string, ): Promise { if (resource === 'account') { if (operation === 'me') { return matrixApiRequest.call(this, 'GET', '/account/whoami'); } } else if (resource === 'room') { if (operation === 'create') { const name = this.getNodeParameter('roomName', index) as string; const preset = this.getNodeParameter('preset', index) as string; const roomAlias = this.getNodeParameter('roomAlias', index) as string; const body: IDataObject = { name, preset, }; if (roomAlias) { body.room_alias_name = roomAlias; } return matrixApiRequest.call(this, 'POST', '/createRoom', body); } else if (operation === 'join') { const roomIdOrAlias = this.getNodeParameter('roomIdOrAlias', index) as string; return matrixApiRequest.call(this, 'POST', `/rooms/${roomIdOrAlias}/join`); } else if (operation === 'leave') { const roomId = this.getNodeParameter('roomId', index) as string; return matrixApiRequest.call(this, 'POST', `/rooms/${roomId}/leave`); } else if (operation === 'invite') { const roomId = this.getNodeParameter('roomId', index) as string; const userId = this.getNodeParameter('userId', index) as string; const body: IDataObject = { user_id: userId, }; return matrixApiRequest.call(this, 'POST', `/rooms/${roomId}/invite`, body); } else if (operation === 'kick') { const roomId = this.getNodeParameter('roomId', index) as string; const userId = this.getNodeParameter('userId', index) as string; const reason = this.getNodeParameter('reason', index) as string; const body: IDataObject = { user_id: userId, reason, }; return matrixApiRequest.call(this, 'POST', `/rooms/${roomId}/kick`, body); } } else if (resource === 'message') { if (operation === 'create') { const roomId = this.getNodeParameter('roomId', index) as string; const text = this.getNodeParameter('text', index, '') as string; const messageType = this.getNodeParameter('messageType', index) as string; const messageFormat = this.getNodeParameter('messageFormat', index) as string; const body: IDataObject = { msgtype: messageType, body: text, }; if (messageFormat === 'org.matrix.custom.html') { const fallbackText = this.getNodeParameter('fallbackText', index, '') as string; body.format = messageFormat; body.formatted_body = text; body.body = fallbackText; } const messageId = uuid(); return matrixApiRequest.call( this, 'PUT', `/rooms/${roomId}/send/m.room.message/${messageId}`, body, ); } else if (operation === 'getAll') { const roomId = this.getNodeParameter('roomId', index) as string; const returnAll = this.getNodeParameter('returnAll', index); const otherOptions = this.getNodeParameter('otherOptions', index) as IDataObject; const returnData: IDataObject[] = []; if (returnAll) { let responseData; let from; do { const qs: IDataObject = { dir: 'b', // Get latest messages first - doesn't return anything if we use f without a previous token. from, }; if (otherOptions.filter) { qs.filter = otherOptions.filter; } responseData = await matrixApiRequest.call( this, 'GET', `/rooms/${roomId}/messages`, {}, qs, ); returnData.push.apply(returnData, responseData.chunk as IDataObject[]); from = responseData.end; } while (responseData.chunk.length > 0); } else { const limit = this.getNodeParameter('limit', index); const qs: IDataObject = { dir: 'b', // GetfallbackText latest messages first - doesn't return anything if we use f without a previous token. limit, }; if (otherOptions.filter) { qs.filter = otherOptions.filter; } const responseData = await matrixApiRequest.call( this, 'GET', `/rooms/${roomId}/messages`, {}, qs, ); returnData.push.apply(returnData, responseData.chunk as IDataObject[]); } return returnData; } } else if (resource === 'event') { if (operation === 'get') { const roomId = this.getNodeParameter('roomId', index) as string; const eventId = this.getNodeParameter('eventId', index) as string; return matrixApiRequest.call(this, 'GET', `/rooms/${roomId}/event/${eventId}`); } } else if (resource === 'media') { if (operation === 'upload') { const roomId = this.getNodeParameter('roomId', index) as string; const mediaType = this.getNodeParameter('mediaType', index) as string; const binaryPropertyName = this.getNodeParameter('binaryPropertyName', index); const additionalFields = this.getNodeParameter('additionalFields', index); let body; const qs: IDataObject = {}; const headers: IDataObject = {}; const { fileName, mimeType } = this.helpers.assertBinaryData(index, binaryPropertyName); body = await this.helpers.getBinaryDataBuffer(index, binaryPropertyName); if (additionalFields.fileName) { qs.filename = additionalFields.fileName as string; } else { qs.filename = fileName; } headers['Content-Type'] = mimeType; headers.accept = 'application/json,text/*;q=0.99'; const uploadRequestResult = await matrixApiRequest.call( this, 'POST', '/upload', body, qs, headers, { overridePrefix: 'media', json: false, }, ); body = { msgtype: `m.${mediaType}`, body: qs.filename, url: uploadRequestResult.content_uri, }; const messageId = uuid(); return matrixApiRequest.call( this, 'PUT', `/rooms/${roomId}/send/m.room.message/${messageId}`, body, ); } } else if (resource === 'roomMember') { if (operation === 'getAll') { const roomId = this.getNodeParameter('roomId', index) as string; const filters = this.getNodeParameter('filters', index); const qs: IDataObject = { membership: filters.membership ? filters.membership : '', not_membership: filters.notMembership ? filters.notMembership : '', }; const roomMembersResponse = await matrixApiRequest.call( this, 'GET', `/rooms/${roomId}/members`, {}, qs, ); return roomMembersResponse.chunk; } } throw new NodeOperationError(this.getNode(), 'Not implemented yet'); }