first commit

packages/nodes-base/nodes/Aws/Transcribe/GenericFunctions.ts

@@ -0,0 +1,128 @@
+import type { Request } from 'aws4';
+import { sign } from 'aws4';
+import get from 'lodash/get';
+import type {
+	ICredentialDataDecryptedObject,
+	IDataObject,
+	IExecuteFunctions,
+	IHookFunctions,
+	IHttpRequestMethods,
+	ILoadOptionsFunctions,
+	IRequestOptions,
+	IWebhookFunctions,
+	JsonObject,
+} from 'n8n-workflow';
+import { NodeApiError } from 'n8n-workflow';
+import { URL } from 'url';
+
+function getEndpointForService(
+	service: string,
+	credentials: ICredentialDataDecryptedObject,
+): string {
+	let endpoint;
+	if (service === 'lambda' && credentials.lambdaEndpoint) {
+		endpoint = credentials.lambdaEndpoint;
+	} else if (service === 'sns' && credentials.snsEndpoint) {
+		endpoint = credentials.snsEndpoint;
+	} else {
+		endpoint = `https://${service}.${credentials.region}.amazonaws.com`;
+	}
+	return (endpoint as string).replace('{region}', credentials.region as string);
+}
+
+export async function awsApiRequest(
+	this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions | IWebhookFunctions,
+	service: string,
+	method: IHttpRequestMethods,
+	path: string,
+	body?: string,
+	headers?: object,
+): Promise<any> {
+	const credentials = await this.getCredentials('aws');
+
+	// Concatenate path and instantiate URL object so it parses correctly query strings
+	const endpoint = new URL(getEndpointForService(service, credentials) + path);
+
+	// Sign AWS API request with the user credentials
+	const signOpts = { headers: headers || {}, host: endpoint.host, method, path, body } as Request;
+	const securityHeaders = {
+		accessKeyId: `${credentials.accessKeyId}`.trim(),
+		secretAccessKey: `${credentials.secretAccessKey}`.trim(),
+		sessionToken: credentials.temporaryCredentials
+			? `${credentials.sessionToken}`.trim()
+			: undefined,
+	};
+
+	sign(signOpts, securityHeaders);
+
+	const options: IRequestOptions = {
+		headers: signOpts.headers,
+		method,
+		uri: endpoint.href,
+		body: signOpts.body,
+	};
+
+	try {
+		return await this.helpers.request(options);
+	} catch (error) {
+		throw new NodeApiError(this.getNode(), error as JsonObject); // no XML parsing needed
+	}
+}
+
+export async function awsApiRequestREST(
+	this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions,
+	service: string,
+	method: IHttpRequestMethods,
+	path: string,
+	body?: string,
+	headers?: object,
+): Promise<any> {
+	const response = await awsApiRequest.call(this, service, method, path, body, headers);
+	try {
+		return JSON.parse(response as string);
+	} catch (error) {
+		return response;
+	}
+}
+
+export async function awsApiRequestRESTAllItems(
+	this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions,
+	propertyName: string,
+	service: string,
+	method: IHttpRequestMethods,
+	path: string,
+	body?: string,
+	query: IDataObject = {},
+	_headers: IDataObject = {},
+	_option: IDataObject = {},
+	_region?: string,
+): Promise<any> {
+	const returnData: IDataObject[] = [];
+
+	let responseData;
+
+	const propertyNameArray = propertyName.split('.');
+
+	do {
+		responseData = await awsApiRequestREST.call(this, service, method, path, body, query);
+
+		if (get(responseData, [propertyNameArray[0], propertyNameArray[1], 'NextToken'])) {
+			query.NextToken = get(responseData, [
+				propertyNameArray[0],
+				propertyNameArray[1],
+				'NextToken',
+			]);
+		}
+		if (get(responseData, propertyName)) {
+			if (Array.isArray(get(responseData, propertyName))) {
+				returnData.push.apply(returnData, get(responseData, propertyName) as IDataObject[]);
+			} else {
+				returnData.push(get(responseData, propertyName) as IDataObject);
+			}
+		}
+	} while (
+		get(responseData, [propertyNameArray[0], propertyNameArray[1], 'NextToken']) !== undefined
+	);
+
+	return returnData;
+}