feat(email): isolate is free email fn

Author: douglasduteil

package-lock.json

@@ -42,6 +42,7 @@
     "@fullhuman/postcss-purgecss": "^6.0.0",
     "@gouvfr/dsfr": "^1.12.1",
     "@numerique-gouv/crisp": "https://github.com/douglasduteil/crisp/releases/download/v1.6.1/douglasduteil-crisp-1.6.1.tgz",
+    "@numerique-gouv/moncomptepro.free-email": "workspace:*",
     "@panva/jose": "^1.9.3",
     "@sentry/node": "^7.112.2",
     "@sentry/tracing": "^7.114.0",

package.json

@@ -0,0 +1,2 @@
+dist
+tsconfig.tsbuildinfo

packages/free-email/.gitignore

@@ -0,0 +1,43 @@
+{
+  "name": "@numerique-gouv/moncomptepro.free-email",
+  "version": "0.0.0",
+  "private": true,
+  "type": "module",
+  "exports": {
+    ".": {
+      "require": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.js"
+      },
+      "import": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.js"
+      },
+      "types": "./dist/index.d.ts",
+      "default": "./dist/index.js"
+    },
+    "./data/*": {
+      "require": {
+        "types": "./dist/data/*.d.ts",
+        "default": "./dist/data/*.js"
+      },
+      "import": {
+        "types": "./dist/data/*.d.ts",
+        "default": "./dist/data/*.js"
+      },
+      "types": "./dist/data/*.d.ts",
+      "default": "./dist/data/*.js"
+    }
+  },
+  "scripts": {
+    "build": "tsc --build",
+    "dev": "npm run build -- --watch --preserveWatchOutput",
+    "check": "npm run build -- --noEmit"
+  },
+  "dependencies": {
+    "is-disposable-email-domain": "^1.0.7"
+  },
+  "devDependencies": {
+    "@tsconfig/node22": "^22.0.0"
+  }
+}

packages/free-email/package.json

@@ -0,0 +1,11 @@
+//
+
+import { isFree } from "is-disposable-email-domain";
+import mostUsedFreeEmailDomains from "./data/most-used-free-email-domains";
+
+//
+
+export function isAFreeDomain(domain: string) {
+  // heavily inspired from https://stackoverflow.com/questions/71232973/check-email-domain-type-personal-email-or-company-email#answer-72640757
+  return isFree(domain) || mostUsedFreeEmailDomains.includes(domain);
+}

src/data/most-used-free-email-domains.ts renamed to packages/free-email/src/data/most-used-free-email-domains.ts

@@ -0,0 +1,15 @@
+{
+  "compilerOptions": {
+    "composite": true,
+    "declaration": true,
+    "declarationMap": true,
+    "outDir": "./dist",
+    "rootDir": "src",
+    "types": ["./types"],
+    "module": "Preserve",
+    "moduleResolution": "Bundler",
+    "verbatimModuleSyntax": true
+  },
+  "extends": "@tsconfig/node22/tsconfig.json",
+  "references": []
+}

packages/free-email/src/index.ts

@@ -0,0 +1,5 @@
+//
+
+declare module "is-disposable-email-domain" {
+  function isFree(email: string): boolean;
+}

packages/free-email/tsconfig.json

@@ -1,6 +1,6 @@
+import mostUsedFreeEmailDomains from "@numerique-gouv/moncomptepro.free-email/data/most-used-free-email-domains";
 import { run as spellCheckEmail } from "@zootools/email-spell-checker";
 import gouvfrDomains from "../data/gouvfr-domains";
-import mostUsedFreeEmailDomains from "../data/most-used-free-email-domains";
 import otherGouvDomains from "../data/other-gouv-domains";
 
 // Display an email suggestion for most used public domains

packages/free-email/types/index.d.ts

@@ -1,11 +1,11 @@
-// heavily inspired from https://stackoverflow.com/questions/71232973/check-email-domain-type-personal-email-or-company-email#answer-72640757
-import { isFree } from "is-disposable-email-domain";
+//
+
+import { isAFreeDomain } from "@numerique-gouv/moncomptepro.free-email";
 import { parse_host } from "tld-extract";
 import {
   FEATURE_CONSIDER_ALL_EMAIL_DOMAINS_AS_FREE,
   FEATURE_CONSIDER_ALL_EMAIL_DOMAINS_AS_NON_FREE,
 } from "../config/env";
-import mostUsedFreeEmailDomains from "../data/most-used-free-email-domains";
 
 export const isAFreeEmailProvider = (domain: string) => {
   if (FEATURE_CONSIDER_ALL_EMAIL_DOMAINS_AS_FREE) {
@@ -16,7 +16,7 @@ export const isAFreeEmailProvider = (domain: string) => {
     return false;
   }
 
-  return isFree(domain) || mostUsedFreeEmailDomains.includes(domain);
+  return isAFreeDomain(domain);
 };
 
 export const getEmailDomain = (email: string) => {