1 files changed, 57 insertions, 0 deletions
diff --git a/webext/firefox/content.js b/webext/firefox/content.js
new file mode 100644
index 0000000..9db4005
--- /dev/null
+++ b/webext/firefox/content.js
@@ -0,0 +1,57 @@
+// Content script: detects login/change-password forms and can fill them
+
+function findLoginForms() {
+  const forms = Array.from(document.querySelectorAll('form'));
+  const results = [];
+  for (const f of forms) {
+    const inputs = Array.from(f.querySelectorAll('input'));
+    const hasPassword = inputs.some(i => (i.type || '').toLowerCase() === 'password');
+    const username = inputs.find(i => ['text','email','tel','username'].includes((i.type || '').toLowerCase()) || /user|email|login/i.test(i.name || i.id || ''));
+    const password = inputs.find(i => (i.type || '').toLowerCase() === 'password');
+    if (hasPassword && (username || password)) {
+      results.push({
+        action: f.getAttribute('action') || location.href,
+        usernameName: username && (username.name || username.id) || null,
+        passwordName: password && (password.name || password.id) || null,
+      });
+    }
+  }
+  return results;
+}
+
+function fillCredentials(payload) {
+  const { username, password } = payload || {};
+  if (!username && !password) return false;
+  // Try to fill the first reasonable form
+  const forms = Array.from(document.querySelectorAll('form'));
+  for (const f of forms) {
+    const inputs = Array.from(f.querySelectorAll('input'));
+    const u = inputs.find(i => ['text','email','tel','username'].includes((i.type || '').toLowerCase()) || /user|email|login/i.test(i.name || i.id || ''));
+    const p = inputs.find(i => (i.type || '').toLowerCase() === 'password');
+    if (u || p) {
+      if (u && username) {
+        u.focus();
+        u.value = username;
+        u.dispatchEvent(new Event('input', { bubbles: true }));
+      }
+      if (p && password) {
+        p.focus();
+        p.value = password;
+        p.dispatchEvent(new Event('input', { bubbles: true }));
+      }
+      return true;
+    }
+  }
+  return false;
+}
+
+browser.runtime.onMessage.addListener((message) => {
+  if (!message || !message.type) return;
+  if (message.type === 'SCAN_FORMS') {
+    return Promise.resolve({ forms: findLoginForms() });
+  }
+  if (message.type === 'FILL_CREDENTIALS') {
+    const ok = fillCredentials(message.payload || {});
+    return Promise.resolve({ ok });
+  }
+});