Son CV dans un terminal web en Javascript!
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90 lines
2.7 KiB
90 lines
2.7 KiB
1 year ago
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'use strict'
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var crypto = require('crypto')
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function randomString (size) {
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var bits = (size + 1) * 6
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var buffer = crypto.randomBytes(Math.ceil(bits / 8))
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var string = buffer.toString('base64').replace(/\+/g, '-').replace(/\//g, '_').replace(/=/g, '')
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return string.slice(0, size)
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}
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function calculatePayloadHash (payload, algorithm, contentType) {
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var hash = crypto.createHash(algorithm)
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hash.update('hawk.1.payload\n')
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hash.update((contentType ? contentType.split(';')[0].trim().toLowerCase() : '') + '\n')
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hash.update(payload || '')
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hash.update('\n')
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return hash.digest('base64')
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}
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exports.calculateMac = function (credentials, opts) {
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var normalized = 'hawk.1.header\n' +
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opts.ts + '\n' +
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opts.nonce + '\n' +
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(opts.method || '').toUpperCase() + '\n' +
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opts.resource + '\n' +
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opts.host.toLowerCase() + '\n' +
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opts.port + '\n' +
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(opts.hash || '') + '\n'
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if (opts.ext) {
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normalized = normalized + opts.ext.replace('\\', '\\\\').replace('\n', '\\n')
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}
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normalized = normalized + '\n'
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if (opts.app) {
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normalized = normalized + opts.app + '\n' + (opts.dlg || '') + '\n'
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}
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var hmac = crypto.createHmac(credentials.algorithm, credentials.key).update(normalized)
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var digest = hmac.digest('base64')
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return digest
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}
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exports.header = function (uri, method, opts) {
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var timestamp = opts.timestamp || Math.floor((Date.now() + (opts.localtimeOffsetMsec || 0)) / 1000)
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var credentials = opts.credentials
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if (!credentials || !credentials.id || !credentials.key || !credentials.algorithm) {
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return ''
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}
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if (['sha1', 'sha256'].indexOf(credentials.algorithm) === -1) {
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return ''
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}
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var artifacts = {
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ts: timestamp,
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nonce: opts.nonce || randomString(6),
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method: method,
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resource: uri.pathname + (uri.search || ''),
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host: uri.hostname,
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port: uri.port || (uri.protocol === 'http:' ? 80 : 443),
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hash: opts.hash,
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ext: opts.ext,
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app: opts.app,
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dlg: opts.dlg
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}
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if (!artifacts.hash && (opts.payload || opts.payload === '')) {
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artifacts.hash = calculatePayloadHash(opts.payload, credentials.algorithm, opts.contentType)
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}
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var mac = exports.calculateMac(credentials, artifacts)
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var hasExt = artifacts.ext !== null && artifacts.ext !== undefined && artifacts.ext !== ''
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var header = 'Hawk id="' + credentials.id +
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'", ts="' + artifacts.ts +
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'", nonce="' + artifacts.nonce +
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(artifacts.hash ? '", hash="' + artifacts.hash : '') +
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(hasExt ? '", ext="' + artifacts.ext.replace(/\\/g, '\\\\').replace(/"/g, '\\"') : '') +
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'", mac="' + mac + '"'
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if (artifacts.app) {
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header = header + ', app="' + artifacts.app + (artifacts.dlg ? '", dlg="' + artifacts.dlg : '') + '"'
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}
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return header
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}
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