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<!DOCTYPE html>
<html lang="hr">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Email Verifikacija - Demo</title>
<!-- Bootstrap CSS -->
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.0/font/bootstrap-icons.css">
<style>
body {
background: #f5f5f5;
padding: 50px 20px;
}
.demo-container {
max-width: 1000px;
margin: 0 auto;
background: white;
padding: 40px;
border-radius: 10px;
box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.demo-header {
border-bottom: 3px solid #667eea;
padding-bottom: 20px;
margin-bottom: 30px;
}
.feature-card {
border: 1px solid #dee2e6;
border-radius: 8px;
padding: 20px;
margin-bottom: 20px;
transition: all 0.3s;
}
.feature-card:hover {
box-shadow: 0 5px 15px rgba(0,0,0,0.1);
transform: translateY(-2px);
}
.flow-diagram {
background: #f8f9fa;
padding: 30px;
border-radius: 8px;
margin: 30px 0;
}
.step {
display: flex;
align-items: center;
margin: 15px 0;
}
.step-number {
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
color: white;
width: 40px;
height: 40px;
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
font-weight: bold;
margin-right: 15px;
}
.code-snippet {
background: #282c34;
color: #abb2bf;
padding: 20px;
border-radius: 8px;
overflow-x: auto;
margin: 15px 0;
}
.badge-custom {
background: #667eea;
color: white;
padding: 5px 10px;
border-radius: 5px;
font-size: 12px;
}
</style>
</head>
<body>
<div class="demo-container">
<div class="demo-header">
<h1><i class="bi bi-envelope-check-fill"></i> Email Verifikacija - Dokumentacija</h1>
<p class="lead">Potvrda registracije 6-znamenkastim kodom poslana na email</p>
</div>
<!-- Description -->
<div class="alert alert-info">
<h5><i class="bi bi-info-circle"></i> Što je implementirano?</h5>
<p class="mb-0">
Kompletan sustav email verifikacije gdje korisnik nakon registracije dobiva <strong>6-znamenkasti kod</strong>
na svoj email. Kod mora unijeti unutar <strong>15 minuta</strong> kako bi aktivirao račun.
Sustav uključuje rate limiting, automatsko slanje emailova, i mogućnost ponovnog slanja koda.
</p>
</div>
<!-- Features Grid -->
<h3 class="mt-4 mb-3">🚀 Funkcionalnosti</h3>
<div class="row">
<div class="col-md-6">
<div class="feature-card">
<h5><i class="bi bi-shield-check text-success"></i> Sigurnosne mjere</h5>
<ul>
<li>6-znamenkasti numerički kod</li>
<li>Kod vrijedi 15 minuta</li>
<li>Jedan kod po računu</li>
<li>Rate limiting (1 min između zahtjeva)</li>
</ul>
</div>
</div>
<div class="col-md-6">
<div class="feature-card">
<h5><i class="bi bi-envelope-fill text-primary"></i> Email funkcionalnosti</h5>
<ul>
<li>HTML formatiran email</li>
<li>Responsive dizajn</li>
<li>Brand styling (gradient)</li>
<li>Email logging za debug</li>
</ul>
</div>
</div>
<div class="col-md-6">
<div class="feature-card">
<h5><i class="bi bi-ui-checks text-warning"></i> UX optimizacije</h5>
<ul>
<li>Auto-focus na sljedeći digit</li>
<li>Paste support (kopiranje cijelog koda)</li>
<li>Backspace navigacija</li>
<li>Auto-submit kada se unesu svi digiti</li>
</ul>
</div>
</div>
<div class="col-md-6">
<div class="feature-card">
<h5><i class="bi bi-arrow-clockwise text-info"></i> Resend funkcionalnost</h5>
<ul>
<li>Ponovno slanje koda</li>
<li>60s cooldown timer</li>
<li>Generiranje novog koda</li>
<li>Visual countdown</li>
</ul>
</div>
</div>
</div>
<!-- Flow Diagram -->
<h3 class="mt-5 mb-3">📊 Proces verifikacije</h3>
<div class="flow-diagram">
<div class="step">
<div class="step-number">1</div>
<div>
<strong>Registracija</strong><br>
Korisnik ispuni formu na register.php
</div>
</div>
<div class="step">
<div class="step-number">2</div>
<div>
<strong>Generiranje koda</strong><br>
Backend generira 6-znamenkasti kod i sprema u bazu
</div>
</div>
<div class="step">
<div class="step-number">3</div>
<div>
<strong>Slanje emaila</strong><br>
EmailService šalje HTML email s kodom na korisnikov email
</div>
</div>
<div class="step">
<div class="step-number">4</div>
<div>
<strong>Preusmjeravanje</strong><br>
Korisnik se automatski preusmjerava na verify.php
</div>
</div>
<div class="step">
<div class="step-number">5</div>
<div>
<strong>Unos koda</strong><br>
Korisnik unosi 6 znamenki u odvojena polja
</div>
</div>
<div class="step">
<div class="step-number">6</div>
<div>
<strong>Verifikacija</strong><br>
API provjerava kod i aktivira račun ako je ispravan
</div>
</div>
<div class="step">
<div class="step-number">7</div>
<div>
<strong>Prijava</strong><br>
Korisnik je automatski prijavljen i preusmjeren na index.php
</div>
</div>
</div>
<!-- Database Structure -->
<h3 class="mt-5 mb-3">🗄️ Struktura baze podataka</h3>
<div class="code-snippet">
<pre><code>CREATE TABLE users (
id INT(11) AUTO_INCREMENT PRIMARY KEY,
username VARCHAR(50) NOT NULL UNIQUE,
email VARCHAR(255) NOT NULL UNIQUE,
password VARCHAR(255) NOT NULL,
<span style="color: #61afef">verification_code VARCHAR(6) DEFAULT NULL</span>,
<span style="color: #61afef">is_verified TINYINT(1) DEFAULT 0</span>,
<span style="color: #61afef">verification_expires DATETIME DEFAULT NULL</span>,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);</code></pre>
</div>
<!-- API Endpoints -->
<h3 class="mt-5 mb-3">🔌 API Endpoints</h3>
<div class="accordion" id="apiAccordion">
<!-- Register User -->
<div class="accordion-item">
<h2 class="accordion-header">
<button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#api1">
<span class="badge-custom me-2">POST</span> api/register_user.php
</button>
</h2>
<div id="api1" class="accordion-collapse collapse show" data-bs-parent="#apiAccordion">
<div class="accordion-body">
<p><strong>Opis:</strong> Registracija novog korisnika i slanje verifikacijskog emaila</p>
<p><strong>Parameters:</strong></p>
<ul>
<li><code>username</code> - Korisničko ime (3-30 znakova)</li>
<li><code>email</code> - Email adresa</li>
<li><code>password</code> - Lozinka (min 6 znakova)</li>
<li><code>confirmPassword</code> - Potvrda lozinke</li>
</ul>
<p><strong>Response:</strong></p>
<div class="code-snippet">
<pre><code>{
"success": true,
"message": "Registracija uspješna! Provjerite email...",
"user_id": 1,
"email": "user@example.com",
"requires_verification": true
}</code></pre>
</div>
</div>
</div>
</div>
<!-- Verify Code -->
<div class="accordion-item">
<h2 class="accordion-header">
<button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#api2">
<span class="badge-custom me-2">POST</span> api/verify_code.php
</button>
</h2>
<div id="api2" class="accordion-collapse collapse" data-bs-parent="#apiAccordion">
<div class="accordion-body">
<p><strong>Opis:</strong> Verifikacija 6-znamenkastog koda i aktivacija računa</p>
<p><strong>Parameters:</strong></p>
<ul>
<li><code>email</code> - Email adresa korisnika</li>
<li><code>code</code> - 6-znamenkasti kod</li>
</ul>
<p><strong>Response (success):</strong></p>
<div class="code-snippet">
<pre><code>{
"success": true,
"message": "Račun uspješno verificiran!",
"username": "ivan_horvat"
}</code></pre>
</div>
<p><strong>Response (error - expired):</strong></p>
<div class="code-snippet">
<pre><code>{
"success": false,
"message": "Verifikacijski kod je istekao",
"expired": true
}</code></pre>
</div>
</div>
</div>
</div>
<!-- Resend Code -->
<div class="accordion-item">
<h2 class="accordion-header">
<button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#api3">
<span class="badge-custom me-2">POST</span> api/resend_code.php
</button>
</h2>
<div id="api3" class="accordion-collapse collapse" data-bs-parent="#apiAccordion">
<div class="accordion-body">
<p><strong>Opis:</strong> Ponovno slanje verifikacijskog koda</p>
<p><strong>Parameters:</strong></p>
<ul>
<li><code>email</code> - Email adresa korisnika</li>
</ul>
<p><strong>Rate Limiting:</strong> Max 1 zahtjev po minuti</p>
<p><strong>Response:</strong></p>
<div class="code-snippet">
<pre><code>{
"success": true,
"message": "Novi verifikacijski kod je poslan!",
"expires_in": "15 minuta"
}</code></pre>
</div>
</div>
</div>
</div>
</div>
<!-- Files Created -->
<h3 class="mt-5 mb-3">📁 Kreirane datoteke</h3>
<div class="table-responsive">
<table class="table table-bordered">
<thead class="table-dark">
<tr>
<th>Datoteka</th>
<th>Opis</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>lib/EmailService.php</code></td>
<td>Klasa za slanje verifikacijskih emailova</td>
</tr>
<tr>
<td><code>api/register_user.php</code></td>
<td>Ažurirano - generira kod i šalje email</td>
</tr>
<tr>
<td><code>api/verify_code.php</code></td>
<td>API za provjeru koda i aktivaciju računa</td>
</tr>
<tr>
<td><code>api/resend_code.php</code></td>
<td>API za ponovno slanje koda</td>
</tr>
<tr>
<td><code>verify.php</code></td>
<td>Stranica za unos verifikacijskog koda</td>
</tr>
<tr>
<td><code>register.php</code></td>
<td>Ažurirano - AJAX submit i redirect na verify.php</td>
</tr>
<tr>
<td><code>instalacija.php</code></td>
<td>Ažurirano - dodana polja za verifikaciju</td>
</tr>
</tbody>
</table>
</div>
<!-- Email Configuration -->
<h3 class="mt-5 mb-3">📧 Konfiguracija emaila</h3>
<div class="alert alert-warning">
<h5><i class="bi bi-exclamation-triangle"></i> Važna napomena o slanju emailova</h5>
<p>Trenutna implementacija koristi PHP <code>mail()</code> funkciju za demo svrhe. Za <strong>produkcijsko okruženje</strong>, preporučuje se:</p>
<ol>
<li><strong>PHPMailer</strong> - Install via Composer: <code>composer require phpmailer/phpmailer</code></li>
<li><strong>SMTP konfiguracija</strong> - Koristite Gmail, SendGrid, Mailgun ili sl.</li>
<li><strong>Email logging</strong> - Trenutno se logira u <code>logs/email_log.txt</code></li>
</ol>
<p class="mb-0">Za lokalno testiranje bez SMTP servera, možete koristiti <strong>MailHog</strong> ili <strong>Mailtrap</strong>.</p>
</div>
<!-- Testing Instructions -->
<h3 class="mt-5 mb-3">🧪 Kako testirati?</h3>
<div class="alert alert-success">
<ol>
<li>Pokrenite <code>instalacija.php</code> da ažurirate tablicu</li>
<li>Otvorite <code>register.php</code> i registrirajte se</li>
<li>Bit ćete preusmjereni na <code>verify.php</code></li>
<li>Provjerite email (ili logs/email_log.txt ako mail() ne radi)</li>
<li>Unesite 6-znamenkasti kod</li>
<li>Račun će biti aktiviran i prijavljeni ste automatski</li>
</ol>
</div>
<!-- Security Notes -->
<h3 class="mt-5 mb-3">🔒 Sigurnosne napomene</h3>
<ul>
<li>✓ Kod vrijedi samo 15 minuta (sprječava replay attacks)</li>
<li>✓ Rate limiting na resend (1 zahtjev/min)</li>
<li>✓ Kod se briše nakon uspješne verifikacije</li>
<li>✓ is_verified flag sprječava login neverificiranih korisnika</li>
<li>✓ Prepared statements u svim upitima</li>
<li>✓ Email adresa se htmlspecialchars() pri prikazu</li>
</ul>
<!-- Back Links -->
<div class="text-center mt-5">
<a href="register.php" class="btn btn-primary me-2">
<i class="bi bi-person-plus"></i> Registracija
</a>
<a href="ajax_demo.php" class="btn btn-secondary me-2">
<i class="bi bi-code-square"></i> AJAX Demo
</a>
<a href="index.php" class="btn btn-outline-secondary">
<i class="bi bi-house"></i> Početna
</a>
</div>
</div>
<!-- Bootstrap JS -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
</body>
</html>