refactor(internet): remove weigths in userAgent (#1761)

Author: xDivisionByZerox

src/modules/internet/user-agent.ts

@@ -54,30 +54,6 @@ type Browser = 'chrome' | 'iexplorer' | 'firefox' | 'safari' | 'opera';
  * @param faker An existing faker instance.
  */
 export function generate(faker: Faker): string {
-  const weightedKeyFromObject = <T extends Record<string, number>>(
-    obj: T
-  ): keyof T => {
-    //returns a random key from the passed object; keys are weighted by the decimal probability in their value
-    const rand = faker.number.int(100) / 100;
-    let min = 0;
-    let max = 0;
-    let return_val: string;
-
-    for (const key in obj) {
-      if (Object.prototype.hasOwnProperty.call(obj, key)) {
-        max = obj[key] + min;
-        return_val = key;
-        if (rand >= min && rand <= max) {
-          break;
-        }
-
-        min = min + obj[key];
-      }
-    }
-
-    return return_val;
-  };
-
   const randomLang = (): string =>
     faker.helpers.arrayElement([
       'AB',
@@ -179,39 +155,29 @@ export function generate(faker: Faker): string {
     ]);
 
   const randomBrowserAndOS = (): [Browser, OS] => {
-    const browser: Browser = weightedKeyFromObject({
-      chrome: 0.45132810566,
-      iexplorer: 0.27477061836,
-      firefox: 0.19384170608,
-      safari: 0.06186781118,
-      opera: 0.01574236955,
-    });
-    const os: OS = weightedKeyFromObject(
-      {
-        chrome: { win: 0.89, mac: 0.09, lin: 0.02 },
-        firefox: { win: 0.83, mac: 0.16, lin: 0.01 },
-        opera: { win: 0.91, mac: 0.03, lin: 0.06 },
-        safari: { win: 0.04, mac: 0.96 },
-        iexplorer: { win: 1 },
-      }[browser]
-    );
+    const browserToOsMap = {
+      chrome: ['win', 'mac', 'lin'],
+      firefox: ['win', 'mac', 'lin'],
+      opera: ['win', 'mac', 'lin'],
+      safari: ['win', 'mac'],
+      iexplorer: ['win'],
+    } satisfies Record<Browser, OS[]>;
+    const browser: Browser = faker.helpers.objectKey(browserToOsMap);
+    const os: OS = faker.helpers.arrayElement(browserToOsMap[browser]);
 
     return [browser, os];
   };
 
-  const randomProc = (arch: OS): string => {
-    const procs = {
-      lin: ['i686', 'x86_64'],
-      mac: { Intel: 0.48, PPC: 0.01, 'U; Intel': 0.48, 'U; PPC': 0.01 },
-      win: ['', 'WOW64', 'Win64; x64'],
-    };
-    const archValue = procs[arch];
-    const proc = Array.isArray(archValue)
-      ? faker.helpers.arrayElement(archValue)
-      : weightedKeyFromObject(archValue);
-
-    return proc;
-  };
+  const randomProc = (arch: OS): string =>
+    faker.helpers.arrayElement(
+      (
+        {
+          lin: ['i686', 'x86_64'],
+          mac: ['Intel', 'PPC', 'U; Intel', 'U; PPC'],
+          win: ['', 'WOW64', 'Win64; x64'],
+        } satisfies Record<OS, string[]>
+      )[arch]
+    );
 
   const randomRevision = (dots: number): string => {
     let return_val = '';

test/__snapshots__/internet.spec.ts.snap

@@ -68,7 +68,7 @@ exports[`internet > 42 > url > with slash appended 1`] = `"https://hasty-sherbet
 
 exports[`internet > 42 > url > without slash appended and with http protocol 1`] = `"http://hasty-sherbet.org"`;
 
-exports[`internet > 42 > userAgent 1`] = `"Mozilla/5.0 (Windows; U; Windows NT 6.2) AppleWebKit/538.0.2 (KHTML, like Gecko) Chrome/29.0.815.0 Safari/538.0.2"`;
+exports[`internet > 42 > userAgent 1`] = `"Mozilla/5.0 (X11; Linux x86_64; rv:15.1) Gecko/20100101 Firefox/15.1.7"`;
 
 exports[`internet > 42 > userName > noArgs 1`] = `"Garnet.Schinner73"`;
 
@@ -148,7 +148,7 @@ exports[`internet > 1211 > url > with slash appended 1`] = `"https://vicious-inf
 
 exports[`internet > 1211 > url > without slash appended and with http protocol 1`] = `"http://vicious-infrastructure.org"`;
 
-exports[`internet > 1211 > userAgent 1`] = `"Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_6 rv:3.0; PT) AppleWebKit/538.2.0 (KHTML, like Gecko) Version/4.1.0 Safari/538.2.0"`;
+exports[`internet > 1211 > userAgent 1`] = `"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.3; Trident/4.0)"`;
 
 exports[`internet > 1211 > userName > noArgs 1`] = `"Tito_Koelpin22"`;
 
@@ -228,7 +228,7 @@ exports[`internet > 1337 > url > with slash appended 1`] = `"https://fair-mile.c
 
 exports[`internet > 1337 > url > without slash appended and with http protocol 1`] = `"http://fair-mile.com"`;
 
-exports[`internet > 1337 > userAgent 1`] = `"Mozilla/5.0 (Windows; U; Windows NT 6.1) AppleWebKit/532.0.0 (KHTML, like Gecko) Chrome/13.0.832.0 Safari/532.0.0"`;
+exports[`internet > 1337 > userAgent 1`] = `"Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.7.0; rv:6.2) Gecko/20100101 Firefox/6.2.2"`;
 
 exports[`internet > 1337 > userName > noArgs 1`] = `"Devyn21"`;