78 lines
2.0 KiB
JavaScript
78 lines
2.0 KiB
JavaScript
const fs = require('fs')
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const path = require('path')
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const SRIToolbox = require('sri-toolbox')
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const getFileContentType = require('./getFileContentType')
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const getFileStats = require('./getFileStats')
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const getFileType = require('./getFileType')
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function getEntries(dir, file, maximumDepth) {
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return new Promise(function (resolve, reject) {
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fs.readdir(path.join(dir, file), function (error, files) {
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if (error) {
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reject(error)
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} else {
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resolve(
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Promise.all(
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files.map(function (f) {
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return getFileStats(path.join(dir, file, f))
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})
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).then(function (statsArray) {
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return Promise.all(statsArray.map(function (stats, index) {
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return getMetadataRecursive(dir, path.join(file, files[index]), stats, maximumDepth - 1)
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}))
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})
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)
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}
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})
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})
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}
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function formatTime(time) {
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return new Date(time).toISOString()
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}
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function getIntegrity(file) {
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return new Promise(function (resolve, reject) {
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fs.readFile(file, function (error, data) {
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if (error) {
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reject(error)
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} else {
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resolve(SRIToolbox.generate({ algorithms: [ 'sha384' ] }, data))
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}
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})
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})
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}
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function getMetadataRecursive(dir, file, stats, maximumDepth) {
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const metadata = {
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lastModified: formatTime(stats.mtime),
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contentType: getFileContentType(file),
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path: file,
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size: stats.size,
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type: getFileType(stats)
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}
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if (stats.isFile()) {
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return getIntegrity(path.join(dir, file)).then(function (integrity) {
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metadata.integrity = integrity
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return metadata
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})
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}
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if (!stats.isDirectory() || maximumDepth === 0)
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return Promise.resolve(metadata)
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return getEntries(dir, file, maximumDepth).then(function (files) {
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metadata.files = files
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return metadata
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})
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}
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function getMetadata(baseDir, path, stats, maximumDepth, callback) {
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getMetadataRecursive(baseDir, path, stats, maximumDepth).then(function (metadata) {
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callback(null, metadata)
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}, callback)
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}
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module.exports = getMetadata
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