ks3/lib/ks3.js

本代码库为`金山云存储KS3`服务.主要提供`KS3 nodejs SDK`和`命令行工具`.

var debug = require('debug')('app')
var auth = require('./auth')
var iam = require('./api/iam')
var config = require('./../config')
var util = require('./util')
var sts = require('./sts')
var initOptions = require('./initOptions')
var advance = require('./advance')

function checkRegionValid (region) {
	return Object.keys(config.ENDPOINT).indexOf(region) > -1
}

// 原参数：ak, sk, bucket, region
function KS3(opts = {}) {
	let options = {}
	const args = arguments
	// 参数大于2个时为旧版创建方式  否则是新版的创建方式
	if (args.length >= 2) {
		const [ ak = '', sk = '', bucket = '', region = config.region ] = arguments
		options =  {
			ak, sk, bucket, region
		}
		if (region) {
			if (!checkRegionValid(region)) throw new Error('region is not legal, please check params')
			options.endpoint = config.ENDPOINT[region]
		}
	} else {
		options = opts
	}
	if (!options.inited) options = initOptions(options)

    const { region, endpoint, secure } = options

	var core = this;

	for (let v in options) {
		core[v] = options[v]
	}

	if (region) {
		config.setRegion(region);
	}

	config.baseUrl = endpoint
	config.protocol = secure ? 'https' : 'http'
	const arr = ['service', 'bucket', 'object', 'upload', 'download', 'advance']
	arr.forEach(function(name) {
        var api = ['advance'].indexOf(name) > -1 ? require('./' + name) : require('./api/' + name);
		core[name] = {};
		// 绑定this到各自函数身上
		for (var attr in api) {
			core[name][attr] = (function(attr) {
				return function() {
					var args = Array.prototype.slice.call(arguments);
                    return util.apiWrapper.call(core, name, api[attr], args)
				}
			})(attr)
		}
	});
}

/**
 * 填充信息
 */
KS3.version = require('../package.json').version;


KS3.prototype = {
	// 进行配置
	config: function(cfg) {
		for (var it in cfg) {
			// 全局配置 需要当前版本信息
			if (it == 'ua') {
				config[it] += (cfg[it]? ` ${cfg[it]}` : '')
			} else {
				config[it] = cfg[it];
			}
		}
	},
	request: require('./request'),
};

KS3.util = util
KS3.auth = auth
KS3.iam = iam
KS3.STS = sts
KS3.advance = advance
module.exports = KS3;