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create_task.php
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create_task.php
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<?php
session_start();
require 'config.php';
// Generate CSRF token
if (empty($_SESSION['csrf_token'])) {
$_SESSION['csrf_token'] = bin2hex(random_bytes(32));
}
$pdo = new PDO("mysql:host=$host;dbname=$dbname", $db_username, $db_password);
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
if (!isset($_SESSION['user_id']) && !isset($_COOKIE['rememberMe'])) {
header('Location: login.php');
exit();
} elseif (!isset($_SESSION['user_id']) && isset($_COOKIE['rememberMe'])) {
$rememberToken = $_COOKIE['rememberMe'];
$userStmt = $pdo->prepare("SELECT id, name, role, timezone FROM users WHERE remember_token = ?");
$userStmt->execute([$rememberToken]);
$userDetails = $userStmt->fetch();
if ($userDetails) {
$_SESSION['user_id'] = $userDetails['id'];
} else {
header('Location: login.php');
exit();
}
}
if (isset($_SESSION['user_id'])) {
$groupStmt = $pdo->prepare("SELECT g.id, g.name FROM user_groups g INNER JOIN group_memberships m ON g.id = m.group_id WHERE m.user_id = ?");
$groupStmt->execute([$_SESSION['user_id']]);
$groups = $groupStmt->fetchAll();
if (!isset($_SESSION['timezone'])) {
$userTimezoneQuery = $pdo->prepare("SELECT timezone FROM users WHERE id = ?");
$userTimezoneQuery->execute([$_SESSION['user_id']]);
$userTimezoneResult = $userTimezoneQuery->fetch();
$_SESSION['timezone'] = $userTimezoneResult['timezone'] ?? 'UTC';
}
}
$errorMessage = '';
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
if ($_POST['csrf_token'] !== $_SESSION['csrf_token']) {
$errorMessage = 'CSRF token mismatch.';
} else {
$taskName = filter_input(INPUT_POST, 'taskName', FILTER_SANITIZE_STRING);
// Retrieve raw post data
$rawTaskDetails = $_POST['taskDetails'] ?? '';
// Allowed tags for Quill 'snow' theme
$allowedTags = '<p><strong><em><u><a><ul><ol><li><br><h1><h2><h3><blockquote><code><div><s><strike>';
// Sanitize the task details
$taskDetails = strip_tags($rawTaskDetails, $allowedTags);
$dueDate = filter_input(INPUT_POST, 'dueDate', FILTER_SANITIZE_STRING);
$dueTime = filter_input(INPUT_POST, 'dueTime', FILTER_SANITIZE_STRING);
$reminderPreference = filter_input(INPUT_POST, 'reminderPreference', FILTER_SANITIZE_STRING);
$isChecklist = isset($_POST['isChecklist']) ? 1 : 0;
$checklistItems = $_POST['checklist'] ?? [];
$groupId = !empty($_POST['group_id']) ? $_POST['group_id'] : null;
$receiveCompletionEmail = isset($_POST['receiveCompletionEmail']) ? 1 : 0;
if (empty($taskName)) {
$errorMessage = 'Please enter a task name.';
} else {
$userTimezone = new DateTimeZone($_SESSION['timezone']);
$dueDateTime = new DateTime("$dueDate $dueTime", $userTimezone);
$dueDateTime->setTimezone(new DateTimeZone('UTC'));
$reminderPreference = !empty($reminderPreference) ? $reminderPreference : NULL;
$stmt = $pdo->prepare("INSERT INTO tasks (user_id, group_id, summary, due_date, reminder_preference, details, receive_completion_email) VALUES (?, ?, ?, ?, ?, ?, ?)");
$stmt->execute([$_SESSION['user_id'], $groupId, $taskName, $dueDateTime->format('Y-m-d H:i:s'), $reminderPreference, $taskDetails, $receiveCompletionEmail]);
$taskId = $pdo->lastInsertId();
if ($isChecklist) {
$checklistStmt = $pdo->prepare("INSERT INTO checklist_items (task_id, content) VALUES (?, ?)");
foreach ($checklistItems as $itemContent) {
// Sanitize each checklist item individually
$itemContent = strip_tags($itemContent, $allowedTags);
if (!empty($itemContent)) {
$checklistStmt->execute([$taskId, $itemContent]);
}
}
}
header('Location: main.php');
exit();
}
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Create Task</title>
<link rel="stylesheet" href="stylesheet.css">
<!-- Include Quill library from CDN -->
<link href="https://cdn.quilljs.com/1.3.7/quill.snow.css" rel="stylesheet">
<!-- Include DOMPurify from its CDN -->
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/purify.min.js"></script>
</head>
<body>
<div class="container">
<h1>Create New Task</h1>
<form action="" method="post">
<!-- CSRF Token -->
<input type="hidden" name="csrf_token" value="<?php echo htmlspecialchars($_SESSION['csrf_token']); ?>">
<!-- Task Name -->
<div class="form-group">
<label for="taskName">Task Name:</label>
<input type="text" id="taskName" name="taskName" required>
</div>
<!-- Checklist Toggle -->
<div class="form-group">
<input type="checkbox" id="isChecklist" name="isChecklist" onchange="toggleTaskType()">
<label for="isChecklist">Is this a checklist?</label>
</div>
<!-- Task Details (Rich Text Editor) -->
<div id="taskDetailsContainer" class="form-group">
<label for="taskDetails">Task Details:</label>
<div id="editor"></div>
<textarea name="taskDetails" id="taskDetails" style="display:none;"></textarea>
</div>
<!-- Checklist Container -->
<div id="checklistContainer" class="form-group" style="display:none;">
<label>Checklist Items:</label>
<div id="checklistItems"></div>
<button type="button" onclick="addChecklistItem()">Add Checklist Item</button>
</div>
<!-- Due Date and Time -->
<div class="form-group">
<label for="dueDate">Due Date:</label>
<input type="date" id="dueDate" name="dueDate">
<label for="dueTime">Time:</label>
<input type="time" id="dueTime" name="dueTime">
</div>
<!-- Reminder Preference -->
<div class="form-group">
<label for="reminderPreference">Reminder Preference:</label>
<select id="reminderPreference" name="reminderPreference">
<option value="">None</option>
<option value="15m">15 minutes before</option>
<option value="30m">30 minutes before</option>
<option value="1h">1 hour before</option>
<option value="2h">2 hours before</option>
<option value="4h">4 hours before</option>
<option value="12h">12 hours before</option>
<option value="24h">24 hours before</option>
</select>
</div>
<!-- Completion Email Preference -->
<div class="form-group">
<input type="checkbox" id="receiveCompletionEmail" name="receiveCompletionEmail">
<label for="receiveCompletionEmail">Receive email upon task completion</label>
</div>
<!-- Group Assignment Dropdown -->
<?php if (!empty($groups)): ?>
<div class="form-group">
<label for="group_id">Assign to Group:</label>
<select id="group_id" name="group_id">
<option value="">None</option>
<?php foreach ($groups as $group): ?>
<option value="<?php echo $group['id']; ?>"><?php echo htmlspecialchars($group['name']); ?></option>
<?php endforeach; ?>
</select>
</div>
<?php endif; ?>
<!-- Form Buttons -->
<button type="submit" class="btn">Create Task</button>
<button type="button" class="btn" onclick="window.location.href='main.php'">Cancel Task</button>
</form>
<?php if ($errorMessage): ?>
<div class="error-message"><?php echo $errorMessage; ?></div>
<?php endif; ?>
</div>
<!-- Include Quill JS -->
<script src="https://cdn.quilljs.com/1.3.6/quill.min.js"></script>
<script>
var quill = new Quill('#editor', {
theme: 'snow',
modules: {
toolbar: [
[{ 'header': [1, 2, false] }],
['bold', 'italic', 'underline', 'strike'],
[{'list': 'ordered'}, {'list': 'bullet'}],
[{'indent': '-1'}, {'indent': '+1'}],
[{'size': ['small', false, 'large', 'huge']}],
[{'align': []}],
['link'],
['clean']
]
}
});
// Set the default text alignment to center
quill.format('align', 'center');
document.querySelector('form').onsubmit = function() {
var html = quill.root.innerHTML;
var cleanHtml = DOMPurify.sanitize(html);
document.querySelector('textarea[name="taskDetails"]').value = cleanHtml;
};
function toggleTaskType() {
var isChecklist = document.getElementById('isChecklist').checked;
var checklistContainer = document.getElementById('checklistContainer');
if (isChecklist) {
checklistContainer.style.display = 'block';
if (document.getElementById('checklistItems').children.length === 0) {
addChecklistItem();
}
} else {
checklistContainer.style.display = 'none';
}
}
function addChecklistItem() {
var checklistItems = document.getElementById('checklistItems');
var newItem = document.createElement('input');
newItem.setAttribute('type', 'text');
newItem.setAttribute('name', 'checklist[]');
checklistItems.appendChild(newItem);
}
</script>
</body>
</html>