PrivateBin/js/common.js

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'use strict';
// testing prerequisites
global.assert = require('assert');
global.jsc = require('jsverify');
global.jsdom = require('jsdom-global');
global.cleanup = global.jsdom();
global.URL = require('jsdom-url').URL;
global.fs = require('fs');
global.WebCrypto = require('@peculiar/webcrypto').Crypto;
// application libraries to test
global.$ = global.jQuery = require('./jquery-3.7.0');
global.RawDeflate = require('./rawinflate-0.3').RawDeflate;
global.zlib = require('./zlib-1.3.1').zlib;
require('./prettify');
global.prettyPrint = window.PR.prettyPrint;
global.prettyPrintOne = window.PR.prettyPrintOne;
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global.showdown = require('./showdown-2.1.0');
global.DOMPurify = require('./purify-3.0.8');
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global.baseX = require('./base-x-4.0.0').baseX;
global.Legacy = require('./legacy').Legacy;
require('./bootstrap-3.4.1');
require('./privatebin');
// internal variables
var a2zString = ['a','b','c','d','e','f','g','h','i','j','k','l','m',
'n','o','p','q','r','s','t','u','v','w','x','y','z'],
digitString = ['0','1','2','3','4','5','6','7','8','9'],
alnumString = a2zString.concat(digitString),
hexString = digitString.concat(['a','b','c','d','e','f']),
queryString = alnumString.concat(['+','%','&','.','*','-','_']),
hashString = queryString.concat(['!']),
base64String = alnumString.concat(['+','/','=']).concat(
a2zString.map(function(c) {
return c.toUpperCase();
})
),
schemas = ['ftp','http','https'],
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supportedLanguages = ['ar', 'bg', 'ca', 'co', 'cs', 'de', 'el', 'es', 'et', 'fi', 'fr', 'he', 'hu', 'id', 'it', 'ja', 'jbo', 'lt', 'no', 'nl', 'pl', 'pt', 'oc', 'ru', 'sk', 'sl', 'th', 'tr', 'uk', 'zh'],
mimeTypes = ['image/png', 'application/octet-stream'],
formats = ['plaintext', 'markdown', 'syntaxhighlighting'],
mimeFile = fs.createReadStream('/etc/mime.types'),
mimeLine = '';
// populate mime types from environment
mimeFile.on('data', function(data) {
mimeLine += data;
var index = mimeLine.indexOf('\n');
while (index > -1) {
var line = mimeLine.substring(0, index);
mimeLine = mimeLine.substring(index + 1);
parseMime(line);
index = mimeLine.indexOf('\n');
}
});
mimeFile.on('end', function() {
if (mimeLine.length > 0) {
parseMime(mimeLine);
}
});
function parseMime(line) {
// ignore comments
var index = line.indexOf('#');
if (index > -1) {
line = line.substring(0, index);
}
// ignore bits after tabs
index = line.indexOf('\t');
if (index > -1) {
line = line.substring(0, index);
}
if (line.length > 0) {
mimeTypes.push(line);
}
}
// common testing helper functions
exports.atob = atob;
exports.btoa = btoa;
// provides random lowercase characters from a to z
exports.jscA2zString = function() {
return jsc.elements(a2zString);
};
// provides random lowercase alpha numeric characters (a to z and 0 to 9)
exports.jscAlnumString = function() {
return jsc.elements(alnumString);
};
//provides random characters allowed in hexadecimal notation
exports.jscHexString = function() {
return jsc.elements(hexString);
};
// provides random characters allowed in GET queries
exports.jscQueryString = function() {
return jsc.elements(queryString);
};
// provides random characters allowed in hash queries
exports.jscHashString = function() {
return jsc.elements(hashString);
};
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// provides random characters allowed in base64 encoded strings
exports.jscBase64String = function() {
return jsc.elements(base64String);
};
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// provides a random URL schema supported by the whatwg-url library
exports.jscSchemas = function(withFtp = true) {
return jsc.elements(withFtp ? schemas : schemas.slice(1));
};
// provides a random supported language string
exports.jscSupportedLanguages = function() {
return jsc.elements(supportedLanguages);
};
// provides a random mime type
exports.jscMimeTypes = function() {
return jsc.elements(mimeTypes);
};
// provides a random PrivateBin paste formatter
exports.jscFormats = function() {
return jsc.elements(formats);
};
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// provides random URLs
exports.jscUrl = function(withFragment = true, withQuery = true) {
let url = {
schema: exports.jscSchemas(),
address: jsc.nearray(exports.jscA2zString()),
};
if (withFragment) {
url.fragment = jsc.string;
}
if(withQuery) {
url.query = jsc.array(exports.jscQueryString());
}
return jsc.record(url);
};
exports.urlToString = function (url) {
return url.schema + '://' + url.address.join('') + '/' + (url.query ? '?' +
encodeURI(url.query.join('').replace(/^&+|&+$/gm,'')) : '') +
(url.fragment ? '#' + encodeURI(url.fragment) : '');
};