63 lines
3.1 KiB
JavaScript
63 lines
3.1 KiB
JavaScript
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import { NodeHttpHandler } from "@smithy/node-http-handler";
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import { CredentialsProviderError } from "@smithy/property-provider";
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import fs from "fs/promises";
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import { checkUrl } from "./checkUrl";
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import { createGetRequest, getCredentials } from "./requestHelpers";
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import { retryWrapper } from "./retry-wrapper";
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const AWS_CONTAINER_CREDENTIALS_RELATIVE_URI = "AWS_CONTAINER_CREDENTIALS_RELATIVE_URI";
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const DEFAULT_LINK_LOCAL_HOST = "http://169.254.170.2";
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const AWS_CONTAINER_CREDENTIALS_FULL_URI = "AWS_CONTAINER_CREDENTIALS_FULL_URI";
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const AWS_CONTAINER_AUTHORIZATION_TOKEN_FILE = "AWS_CONTAINER_AUTHORIZATION_TOKEN_FILE";
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const AWS_CONTAINER_AUTHORIZATION_TOKEN = "AWS_CONTAINER_AUTHORIZATION_TOKEN";
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export const fromHttp = (options = {}) => {
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options.logger?.debug("@aws-sdk/credential-provider-http - fromHttp");
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let host;
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const relative = options.awsContainerCredentialsRelativeUri ?? process.env[AWS_CONTAINER_CREDENTIALS_RELATIVE_URI];
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const full = options.awsContainerCredentialsFullUri ?? process.env[AWS_CONTAINER_CREDENTIALS_FULL_URI];
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const token = options.awsContainerAuthorizationToken ?? process.env[AWS_CONTAINER_AUTHORIZATION_TOKEN];
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const tokenFile = options.awsContainerAuthorizationTokenFile ?? process.env[AWS_CONTAINER_AUTHORIZATION_TOKEN_FILE];
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const warn = options.logger?.constructor?.name === "NoOpLogger" || !options.logger ? console.warn : options.logger.warn;
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if (relative && full) {
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warn("@aws-sdk/credential-provider-http: " +
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"you have set both awsContainerCredentialsRelativeUri and awsContainerCredentialsFullUri.");
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warn("awsContainerCredentialsFullUri will take precedence.");
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}
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if (token && tokenFile) {
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warn("@aws-sdk/credential-provider-http: " +
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"you have set both awsContainerAuthorizationToken and awsContainerAuthorizationTokenFile.");
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warn("awsContainerAuthorizationToken will take precedence.");
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}
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if (full) {
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host = full;
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}
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else if (relative) {
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host = `${DEFAULT_LINK_LOCAL_HOST}${relative}`;
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}
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else {
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throw new CredentialsProviderError(`No HTTP credential provider host provided.
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Set AWS_CONTAINER_CREDENTIALS_FULL_URI or AWS_CONTAINER_CREDENTIALS_RELATIVE_URI.`, { logger: options.logger });
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}
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const url = new URL(host);
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checkUrl(url, options.logger);
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const requestHandler = new NodeHttpHandler({
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requestTimeout: options.timeout ?? 1000,
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connectionTimeout: options.timeout ?? 1000,
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});
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return retryWrapper(async () => {
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const request = createGetRequest(url);
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if (token) {
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request.headers.Authorization = token;
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}
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else if (tokenFile) {
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request.headers.Authorization = (await fs.readFile(tokenFile)).toString();
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}
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try {
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const result = await requestHandler.handle(request);
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return getCredentials(result.response);
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}
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catch (e) {
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throw new CredentialsProviderError(String(e), { logger: options.logger });
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}
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}, options.maxRetries ?? 3, options.timeout ?? 1000);
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};
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