hexo/node_modules/ali-oss/lib/common/object/calculatePostSignature.js

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2023-10-03 11:14:36 +08:00
const { policy2Str } = require('../utils/policy2Str');
const signHelper = require('../signUtils');
const { isObject } = require('../utils/isObject');
const proto = exports;
/**
* @param {Object or JSON} policy specifies the validity of the fields in the request.
* @return {Object} params
* {String} params.OSSAccessKeyId
* {String} params.Signature
* {String} params.policy JSON text encoded with UTF-8 and Base64.
*/
proto.calculatePostSignature = function calculatePostSignature(policy) {
if (!isObject(policy) && typeof policy !== 'string') {
throw new Error('policy must be JSON string or Object');
}
if (!isObject(policy)) {
try {
JSON.stringify(JSON.parse(policy));
} catch (error) {
throw new Error('policy must be JSON string or Object');
}
}
policy = Buffer.from(policy2Str(policy), 'utf8').toString('base64');
const Signature = signHelper.computeSignature(this.options.accessKeySecret, policy);
const query = {
OSSAccessKeyId: this.options.accessKeyId,
Signature,
policy
};
return query;
};