42 lines
1.0 KiB
JavaScript
42 lines
1.0 KiB
JavaScript
const { checkEnv } = require('../utils/checkEnv');
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const proto = exports;
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/**
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* head
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* @param {String} name - object name
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* @param {Object} options
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* @param {{res}}
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*/
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proto.head = async function head(name, options = {}) {
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checkEnv(
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'Because HeadObject has gzip enabled, head cannot get the file size correctly. If you need to get the file size, please use getObjectMeta'
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);
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options.subres = Object.assign({}, options.subres);
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if (options.versionId) {
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options.subres.versionId = options.versionId;
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}
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const params = this._objectRequestParams('HEAD', name, options);
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params.successStatuses = [200, 304];
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const result = await this.request(params);
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const data = {
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meta: null,
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res: result.res,
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status: result.status
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};
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if (result.status === 200) {
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Object.keys(result.headers).forEach(k => {
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if (k.indexOf('x-oss-meta-') === 0) {
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if (!data.meta) {
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data.meta = {};
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}
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data.meta[k.substring(11)] = result.headers[k];
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}
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});
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}
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return data;
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};
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