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Copyright (c) 2012-2014 Jeffrey Mealo
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associateddocumentation files (the 'Software'), to deal in the Software without restriction, including without limitationthe rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, andto permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of theSoftware.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THEWARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS ORCOPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OROTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Based loosely on Luka Pusic's PHP Script: http://360percents.com/posts/php-random-user-agent-generator/
The license for that script is as follows:
'THE BEER-WARE LICENSE' (Revision 42):
<pusic93@gmail.com> wrote this file. As long as you retain this notice you can do whatever you want with this stuff.If we meet some day, and you think this stuff is worth it, you can buy me a beer in return. Luka Pusic
*/import { Faker } from "../lib/mod.ts";
function rnd(a: any, b?: any) { // calling rnd() with no arguments is identical to rnd(0, 100) a = a || 0; b = b || 100; if (typeof b === "number" && typeof a === "number") { // 9/2018 - Added faker random to ensure mersenne and seed const faker = new Faker({}); return faker.random.number({ min: a, max: b }); } if (Object.prototype.toString.call(a) === "[object Array]") { // returns a random element from array (a), even weighting return a[Math.floor(Math.random() * a.length)]; } if (a && typeof a === "object") { // returns a random key from the passed object keys are weighted by the decimal probability in their value return (function (obj) { const rand = rnd(0, 100) / 100; let min = 0, max = 0, return_val; for (const key in obj) { if (obj.hasOwnProperty(key)) { max = obj[key] + min; return_val = key; if (rand >= min && rand <= max) { break; } min = min + obj[key]; } } return return_val; }(a)); } throw new TypeError( "Invalid arguments passed to rnd. (" + (b ? a + ", " + b : a) + ")", );}function randomLang() { return rnd([ "AB", "AF", "AN", "AR", "AS", "AZ", "BE", "BG", "BN", "BO", "BR", "BS", "CA", "CE", "CO", "CS", "CU", "CY", "DA", "DE", "EL", "EN", "EO", "ES", "ET", "EU", "FA", "FI", "FJ", "FO", "FR", "FY", "GA", "GD", "GL", "GV", "HE", "HI", "HR", "HT", "HU", "HY", "ID", "IS", "IT", "JA", "JV", "KA", "KG", "KO", "KU", "KW", "KY", "LA", "LB", "LI", "LN", "LT", "LV", "MG", "MK", "MN", "MO", "MS", "MT", "MY", "NB", "NE", "NL", "NN", "NO", "OC", "PL", "PT", "RM", "RO", "RU", "SC", "SE", "SK", "SL", "SO", "SQ", "SR", "SV", "SW", "TK", "TR", "TY", "UK", "UR", "UZ", "VI", "VO", "YI", "ZH", ]);}function randomBrowserAndOS() { const browser = rnd({ chrome: .45132810566, iexplorer: .27477061836, firefox: .19384170608, safari: .06186781118, opera: .01574236955, }); const os: { [key: string]: { [key: string]: number } | string[]; } = { chrome: { win: .89, mac: .09, lin: .02 }, firefox: { win: .83, mac: .16, lin: .01 }, opera: { win: .91, mac: .03, lin: .06 }, safari: { win: .04, mac: .96 }, iexplorer: ["win"], }; return [browser, rnd(os[browser])];}function randomProc(arch: string) { const procs: { [key: string]: { [key: string]: number } | string[]; } = { lin: ["i686", "x86_64"], mac: { "Intel": .48, "PPC": .01, "U Intel": .48, "U PPC": .01 }, win: ["", "WOW64", "Win64 x64"], }; return rnd(procs[arch]);}function randomRevision(dots: number) { let return_val = ""; // generate a random revision // dots = 2 returns .x.y where x & y are between 0 and 9 for (let x = 0; x < dots; x++) { return_val += "." + rnd(0, 9); } return return_val;}const version_string = { net() { return [rnd(1, 4), rnd(0, 9), rnd(10000, 99999), rnd(0, 9)].join("."); }, nt() { return rnd(5, 6) + "." + rnd(0, 3); }, ie() { return rnd(7, 11); }, trident() { return rnd(3, 7) + "." + rnd(0, 1); }, osx(delim?: string) { return [10, rnd(5, 10), rnd(0, 9)].join(delim || "."); }, chrome() { return [rnd(13, 39), 0, rnd(800, 899), 0].join("."); }, presto() { return "2.9." + rnd(160, 190); }, presto2() { return rnd(10, 12) + ".00"; }, safari() { return rnd(531, 538) + "." + rnd(0, 2) + "." + rnd(0, 2); },};const browsers: { [key: string]: Function } = { firefox(arch: string) { // https://developer.mozilla.org/en-US/docs/Gecko_user_agent_string_reference const firefox_ver = rnd(5, 15) + randomRevision(2), gecko_ver = "Gecko/20100101 Firefox/" + firefox_ver, proc = randomProc(arch), os_ver = (arch === "win") ? "(Windows NT " + version_string.nt() + ((proc) ? " " + proc : "") : (arch === "mac") ? "(Macintosh " + proc + " Mac OS X " + version_string.osx() : "(X11 Linux " + proc; return "Mozilla/5.0 " + os_ver + " rv:" + firefox_ver.slice(0, -2) + ") " + gecko_ver; }, iexplorer() { const ver = version_string.ie(); if (ver >= 11) { // http://msdn.microsoft.com/en-us/library/ie/hh869301(v=vs.85).aspx return "Mozilla/5.0 (Windows NT 6." + rnd(1, 3) + " Trident/7.0 " + rnd(["Touch ", ""]) + "rv:11.0) like Gecko"; } // http://msdn.microsoft.com/en-us/library/ie/ms537503(v=vs.85).aspx return "Mozilla/5.0 (compatible MSIE " + ver + ".0 Windows NT " + version_string.nt() + " Trident/" + version_string.trident() + ((rnd(0, 1) === 1) ? " .NET CLR " + version_string.net() : "") + ")"; }, opera(arch: string) { // http://www.opera.com/docs/history/ const presto_ver = " Presto/" + version_string.presto() + " Version/" + version_string.presto2() + ")", os_ver = (arch === "win") ? "(Windows NT " + version_string.nt() + " U " + randomLang() + presto_ver : (arch === "lin") ? "(X11 Linux " + randomProc(arch) + " U " + randomLang() + presto_ver : "(Macintosh Intel Mac OS X " + version_string.osx() + " U " + randomLang() + " Presto/" + version_string.presto() + " Version/" + version_string.presto2() + ")"; return "Opera/" + rnd(9, 14) + "." + rnd(0, 99) + " " + os_ver; }, safari(arch: string) { const safari = version_string.safari(), ver = rnd(4, 7) + "." + rnd(0, 1) + "." + rnd(0, 10), os_ver = (arch === "mac") ? "(Macintosh " + randomProc("mac") + " Mac OS X " + version_string.osx("_") + " rv:" + rnd(2, 6) + ".0 " + randomLang() + ") " : "(Windows U Windows NT " + version_string.nt() + ")"; return "Mozilla/5.0 " + os_ver + "AppleWebKit/" + safari + " (KHTML, like Gecko) Version/" + ver + " Safari/" + safari; }, chrome(arch: string) { const safari = version_string.safari(), os_ver = (arch === "mac") ? "(Macintosh " + randomProc("mac") + " Mac OS X " + version_string.osx("_") + ") " : (arch === "win") ? "(Windows U Windows NT " + version_string.nt() + ")" : "(X11 Linux " + randomProc(arch); return "Mozilla/5.0 " + os_ver + " AppleWebKit/" + safari + " (KHTML, like Gecko) Chrome/" + version_string.chrome() + " Safari/" + safari; },};export function generate() { const [browser, os] = randomBrowserAndOS(); return browsers[browser](os);}