initial commit

tests/integration/auth_ip_authorization_flow_test.go

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+/*
+ * Copyright (C) 2026 Fluxer Contributors
+ *
+ * This file is part of Fluxer.
+ *
+ * Fluxer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Fluxer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package integration
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+	"time"
+)
+
+// TestAuthIPAuthorizationFlow validates the complete IP authorization flow:
+// 1. User registers from IP A
+// 2. User attempts to login from IP B (new IP)
+// 3. Login is blocked with 403 and returns IP authorization ticket
+// 4. User retrieves IP authorization token from email
+// 5. User authorizes the new IP with the token
+// 6. User can now login from IP B successfully
+func TestAuthIPAuthorizationFlow(t *testing.T) {
+	client := newTestClient(t)
+	originalIP := client.clientIP
+
+	email := fmt.Sprintf("ip-auth-flow-%d@example.com", time.Now().UnixNano())
+	password := uniquePassword()
+
+	reg := registerTestUser(t, client, email, password)
+	clearTestEmails(t, client)
+
+	newIP := "10.20.30.40"
+	if newIP == originalIP {
+		newIP = "10.20.30.41"
+	}
+	clientFromNewIP := &testClient{
+		baseURL:    client.baseURL,
+		httpClient: client.httpClient,
+		clientIP:   newIP,
+	}
+
+	loginReq := loginRequest{
+		Email:    email,
+		Password: password,
+	}
+
+	resp, err := clientFromNewIP.postJSON("/auth/login", loginReq)
+	if err != nil {
+		t.Fatalf("failed to call login endpoint from new IP: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusForbidden {
+		body := readResponseBody(resp)
+		t.Fatalf("expected login from new IP to return 403, got %d: %s", resp.StatusCode, body)
+	}
+
+	var ipAuthResp struct {
+		Code                    string `json:"code"`
+		Ticket                  string `json:"ticket"`
+		IPAuthorizationRequired bool   `json:"ip_authorization_required"`
+		Email                   string `json:"email"`
+		ResendAvailableIn       int    `json:"resend_available_in"`
+		Message                 string `json:"message"`
+	}
+	decodeJSONResponse(t, resp, &ipAuthResp)
+
+	if !ipAuthResp.IPAuthorizationRequired {
+		t.Fatalf("expected ip_authorization_required to be true")
+	}
+	if ipAuthResp.Ticket == "" {
+		t.Fatalf("expected ticket to be present in response")
+	}
+	if ipAuthResp.Email != email {
+		t.Fatalf("expected email to match registered email, got %s", ipAuthResp.Email)
+	}
+
+	emailData := waitForEmail(t, client, "ip_authorization", email)
+	authToken, ok := emailData.Metadata["token"]
+	if !ok || authToken == "" {
+		t.Fatalf("expected ip authorization token in email metadata")
+	}
+
+	resp, err = clientFromNewIP.postJSON("/auth/authorize-ip", map[string]string{"token": authToken})
+	if err != nil {
+		t.Fatalf("failed to authorize IP: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusNoContent {
+		body := readResponseBody(resp)
+		t.Fatalf("expected IP authorization to succeed with 204, got %d: %s", resp.StatusCode, body)
+	}
+
+	resp, err = clientFromNewIP.postJSON("/auth/login", loginReq)
+	if err != nil {
+		t.Fatalf("failed to login after IP authorization: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		body := readResponseBody(resp)
+		t.Fatalf("expected login to succeed after IP authorization, got %d: %s", resp.StatusCode, body)
+	}
+
+	var loginResp loginResponse
+	decodeJSONResponse(t, resp, &loginResp)
+
+	if loginResp.Token == "" {
+		t.Fatalf("expected login response to include token")
+	}
+	if loginResp.UserID != reg.UserID {
+		t.Fatalf("expected login user_id %s to match registration %s", loginResp.UserID, reg.UserID)
+	}
+}