Add feature to search users by IP address (#1059)

* Allows admins to search users by IP address
* Closes #1054

tests/admin/test_users.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from tests.helpers import (
+    create_ctfd,
+    destroy_ctfd,
+    login_as_user,
+    gen_user,
+    gen_tracking,
+)
+
+
+def test_admin_user_ip_search():
+    """Can an admin search user IPs"""
+    app = create_ctfd()
+    with app.app_context():
+        u1 = gen_user(app.db, name="user1", email="user1@ctfd.io")
+        gen_tracking(app.db, user_id=u1.id, ip="1.1.1.1")
+
+        u2 = gen_user(app.db, name="user2", email="user2@ctfd.io")
+        gen_tracking(app.db, user_id=u2.id, ip="2.2.2.2")
+
+        u3 = gen_user(app.db, name="user3", email="user3@ctfd.io")
+        gen_tracking(app.db, user_id=u3.id, ip="3.3.3.3")
+
+        u4 = gen_user(app.db, name="user4", email="user4@ctfd.io")
+        gen_tracking(app.db, user_id=u4.id, ip="3.3.3.3")
+        gen_tracking(app.db, user_id=u4.id, ip="4.4.4.4")
+
+        with login_as_user(app, name="admin", password="password") as admin:
+            r = admin.get("/admin/users?field=ip&q=1.1.1.1")
+            resp = r.get_data(as_text=True)
+            assert "user1" in resp
+            assert "user2" not in resp
+            assert "user3" not in resp
+
+            r = admin.get("/admin/users?field=ip&q=2.2.2.2")
+            resp = r.get_data(as_text=True)
+            assert "user1" not in resp
+            assert "user2" in resp
+            assert "user3" not in resp
+
+            r = admin.get("/admin/users?field=ip&q=3.3.3.3")
+            resp = r.get_data(as_text=True)
+            assert "user1" not in resp
+            assert "user2" not in resp
+            assert "user3" in resp
+            assert "user4" in resp
+    destroy_ctfd(app)