Initial LinkedSign platform

android_react/src/utils/files.js

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+import * as FileSystem from 'expo-file-system';
+import * as Sharing from 'expo-sharing';
+
+export const downloadAndShareFile = async ({ url, token, filename }) => {
+  const targetUri = `${FileSystem.cacheDirectory}${filename}`;
+  const result = await FileSystem.downloadAsync(url, targetUri, {
+    headers: {
+      Authorization: `Bearer ${token}`,
+    },
+  });
+
+  if (await Sharing.isAvailableAsync()) {
+    await Sharing.shareAsync(result.uri);
+  }
+
+  return result.uri;
+};

android_react/src/utils/passwordRules.js

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+export const getPasswordChecks = (password = '') => ([
+  { key: 'length', label: 'Al menos 8 caracteres', valid: password.length >= 8 },
+  { key: 'upper', label: 'Una mayúscula', valid: /[A-Z]/.test(password) },
+  { key: 'lower', label: 'Una minúscula', valid: /[a-z]/.test(password) },
+  { key: 'number', label: 'Un número', valid: /\d/.test(password) },
+  { key: 'special', label: 'Un carácter especial', valid: /[^A-Za-z0-9]/.test(password) },
+]);
+
+export const isPasswordStrong = (password = '') =>
+  getPasswordChecks(password).every((rule) => rule.valid);