107 lines
3.0 KiB
JavaScript
107 lines
3.0 KiB
JavaScript
var AWS = require('../core');
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var os = require('os');
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var path = require('path');
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function parseFile(filename, isConfig) {
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var content = AWS.util.ini.parse(AWS.util.readFileSync(filename));
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var tmpContent = {};
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Object.keys(content).forEach(function(profileName) {
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var profileContent = content[profileName];
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profileName = isConfig ? profileName.replace(/^profile\s/, '') : profileName;
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Object.defineProperty(tmpContent, profileName, {
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value: profileContent,
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enumerable: true
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});
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});
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return tmpContent;
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}
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/**
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* Ini file loader class the same as that used in the SDK. It loads and
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* parses config and credentials files in .ini format and cache the content
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* to assure files are only read once.
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* Note that calling operations on the instance instantiated from this class
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* won't affect the behavior of SDK since SDK uses an internal singleton of
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* this class.
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* @!macro nobrowser
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*/
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AWS.IniLoader = AWS.util.inherit({
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constructor: function IniLoader() {
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this.resolvedProfiles = {};
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},
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/** Remove all cached files. Used after config files are updated. */
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clearCachedFiles: function clearCachedFiles() {
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this.resolvedProfiles = {};
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},
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/**
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* Load configurations from config/credentials files and cache them
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* for later use. If no file is specified it will try to load default
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* files.
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* @param options [map] information describing the file
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* @option options filename [String] ('~/.aws/credentials' or defined by
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* AWS_SHARED_CREDENTIALS_FILE process env var or '~/.aws/config' if
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* isConfig is set to true)
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* path to the file to be read.
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* @option options isConfig [Boolean] (false) True to read config file.
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* @return [map<String,String>] object containing contents from file in key-value
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* pairs.
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*/
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loadFrom: function loadFrom(options) {
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options = options || {};
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var isConfig = options.isConfig === true;
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var filename = options.filename || this.getDefaultFilePath(isConfig);
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if (!this.resolvedProfiles[filename]) {
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var fileContent = this.parseFile(filename, isConfig);
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Object.defineProperty(this.resolvedProfiles, filename, { value: fileContent });
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}
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return this.resolvedProfiles[filename];
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},
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/**
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* @api private
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*/
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parseFile: parseFile,
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/**
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* @api private
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*/
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getDefaultFilePath: function getDefaultFilePath(isConfig) {
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return path.join(
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this.getHomeDir(),
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'.aws',
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isConfig ? 'config' : 'credentials'
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);
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},
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/**
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* @api private
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*/
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getHomeDir: function getHomeDir() {
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var env = process.env;
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var home = env.HOME ||
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env.USERPROFILE ||
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(env.HOMEPATH ? ((env.HOMEDRIVE || 'C:/') + env.HOMEPATH) : null);
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if (home) {
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return home;
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}
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if (typeof os.homedir === 'function') {
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return os.homedir();
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}
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throw AWS.util.error(
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new Error('Cannot load credentials, HOME path not set')
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);
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}
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});
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var IniLoader = AWS.IniLoader;
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module.exports = {
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IniLoader: IniLoader,
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parseFile: parseFile,
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};
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