91 lines
3 KiB
JavaScript
91 lines
3 KiB
JavaScript
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const logger = require('winston');
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// const { postToStats, sendGoogleAnalytics } = require('../controllers/statsController.js');
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module.exports = {
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REGEXP_INVALID_URI: /[^A-Za-z0-9-]/g,
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REGEXP_ADDRESS : /^b(?=[^0OIl]{32,33})[0-9A-Za-z]{32,33}$/,
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CHANNEL_CHAR : '@',
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parseIdentifier : function (identifier) {
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logger.debug('parsing identifier:', identifier);
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const componentsRegex = new RegExp(
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'([^:$#/]*)' + // value (stops at the first separator or end)
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'([:$#]?)([^/]*)' // modifier separator, modifier (stops at the first path separator or end)
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);
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const [proto, value, modifierSeperator, modifier] = componentsRegex
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.exec(identifier)
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.map(match => match || null);
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logger.debug(`${proto}, ${value}, ${modifierSeperator}, ${modifier}`);
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// Validate and process name
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const isChannel = value.startsWith(module.exports.CHANNEL_CHAR);
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const channelName = isChannel ? value : null;
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let claimId;
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if (isChannel) {
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if (!channelName) {
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throw new Error('No channel name after @.');
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}
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const nameBadChars = (channelName).match(module.exports.REGEXP_INVALID_URI);
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if (nameBadChars) {
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throw new Error(`Invalid characters in channel name: ${nameBadChars.join(', ')}.`);
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}
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} else {
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claimId = value;
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}
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// Validate and process modifier
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let channelClaimId;
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if (modifierSeperator) {
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if (!modifier) {
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throw new Error(`No modifier provided after separator ${modifierSeperator}.`);
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}
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if (modifierSeperator === ':') {
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channelClaimId = modifier;
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} else {
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throw new Error(`The ${modifierSeperator} modifier is not currently supported.`);
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}
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}
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return {
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isChannel,
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channelName,
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channelClaimId,
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claimId,
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};
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},
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parseName: function (name) {
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logger.debug('parsing name:', name);
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const componentsRegex = new RegExp(
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'([^:$#/.]*)' + // name (stops at the first modifier)
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'([:$#.]?)([^/]*)' // modifier separator, modifier (stops at the first path separator or end)
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);
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const [proto, claimName, modifierSeperator, modifier] = componentsRegex
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.exec(name)
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.map(match => match || null);
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logger.debug(`${proto}, ${claimName}, ${modifierSeperator}, ${modifier}`);
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// Validate and process name
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if (!claimName) {
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throw new Error('No claim name provided before .');
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}
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const nameBadChars = (claimName).match(module.exports.REGEXP_INVALID_URI);
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if (nameBadChars) {
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throw new Error(`Invalid characters in claim name: ${nameBadChars.join(', ')}.`);
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}
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// Validate and process modifier
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let isServeRequest = false;
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if (modifierSeperator) {
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if (!modifier) {
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throw new Error(`No file extension provided after separator ${modifierSeperator}.`);
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}
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if (modifierSeperator !== '.') {
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throw new Error(`The ${modifierSeperator} modifier is not supported in the claim name`);
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}
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isServeRequest = true;
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}
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return {
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claimName,
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isServeRequest,
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};
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},
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};
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