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71 lines
2.2 KiB
71 lines
2.2 KiB
4 weeks ago
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const dateFormat = require('dateformat');
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const urlUtil = require('url');
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const signHelper = require('../../common/signUtils');
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const { setSTSToken } = require('../utils/setSTSToken');
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const { isFunction } = require('../utils/isFunction');
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const { getStandardRegion } = require('../utils/getStandardRegion');
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const proto = exports;
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/**
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* signatureUrlV4
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*
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* @param {string} method
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* @param {number} expires
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* @param {Object} [request]
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* @param {Object} [request.headers]
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* @param {Object} [request.queries]
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* @param {string} [objectName]
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* @param {string[]} [additionalHeaders]
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*/
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proto.signatureUrlV4 = async function signatureUrlV4(method, expires, request, objectName, additionalHeaders) {
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const headers = (request && request.headers) || {};
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const queries = { ...((request && request.queries) || {}) };
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const date = new Date();
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const formattedDate = dateFormat(date, "UTC:yyyymmdd'T'HHMMss'Z'");
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const onlyDate = formattedDate.split('T')[0];
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const fixedAdditionalHeaders = signHelper.fixAdditionalHeaders(additionalHeaders);
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const region = getStandardRegion(this.options.region);
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if (fixedAdditionalHeaders.length > 0) {
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queries['x-oss-additional-headers'] = fixedAdditionalHeaders.join(';');
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}
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queries['x-oss-credential'] = `${this.options.accessKeyId}/${onlyDate}/${region}/oss/aliyun_v4_request`;
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queries['x-oss-date'] = formattedDate;
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queries['x-oss-expires'] = expires;
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queries['x-oss-signature-version'] = 'OSS4-HMAC-SHA256';
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if (this.options.stsToken && isFunction(this.options.refreshSTSToken)) {
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await setSTSToken.call(this);
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}
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if (this.options.stsToken) {
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queries['x-oss-security-token'] = this.options.stsToken;
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}
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const canonicalRequest = signHelper.getCanonicalRequest(
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method,
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{
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headers,
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queries
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},
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this.options.bucket,
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objectName,
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fixedAdditionalHeaders
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);
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const stringToSign = signHelper.getStringToSign(region, formattedDate, canonicalRequest);
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queries['x-oss-signature'] = signHelper.getSignatureV4(this.options.accessKeySecret, onlyDate, region, stringToSign);
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const signedUrl = urlUtil.parse(
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this._getReqUrl({
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bucket: this.options.bucket,
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object: objectName
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})
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);
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signedUrl.query = { ...queries };
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return signedUrl.format();
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};
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