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mainapp.php
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<?php
session_start();
if(isset($_SESSION[userId])) {
$currentUserId = $_SESSION['userId'];
$currentUserName = $_SESSION['username'];
}
else {
header("Location: ./signin.php");
exit();
}
$host = "localhost";
$user = "first_year";
$database = "first_year";
$passwd = "first_year";
$con = new mysqli($host, $user, $passwd, $database);
if($con->connect_errno) {
die("Can not connect: ".$con->connect_error);
}
$user_table = "mihir_users";
$message_table = "mihir_messages";
$sql = "SELECT * FROM $user_table WHERE username = '$currentUserName'";
$query = mysqli_query($con, $sql);
$result = mysqli_fetch_array($query);
if(empty($result['email']) || empty($result['phone']) || empty($result['sex']) || empty($result['image']) || empty($result['fname']) || empty($result['lname'])) {
header("Location: ./profile.php?error=emptyfields");
exit();
}
?>
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>PHPMessenger</title>
<link rel="stylesheet" href="./css/mainapp.css">
<link href="https://fonts.googleapis.com/css?family=Poppins:400,500,600,700,800,900&display=swap" rel="stylesheet">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script type="text/javascript">
var currentDisplayingContactId = "";
$(document).ready(function() {
$('.user-icon').click(function() {
$('.user-dropdown').toggleClass("hidden");
});
$('.send-button').click(function() {
var typed_message = $('#type-message').val();
if(typed_message == "") {
alert("Empty message.");
}
else {
$('#type-message').val("");
if(currentDisplayingContactId == "") {
alert("No contact selected.");
}
else {
$.ajax({
url: "sendMessage.php",
type: "POST",
data: {sent_by: <?php echo $currentUserId; ?>, sent_to: currentDisplayingContactId, message: typed_message}, //sent_by should be the user id and sent_to should be the contact id
success: function(data) {
$('.just-for-alert').html(data);
}
});
}
}
});
$(window).on('keypress', function(event) {
if(event.which == 13) {
var typed_message = $('#type-message').val();
if(typed_message == "") {
alert("Empty message.");
}
else {
$('#type-message').val("");
if(currentDisplayingContactId == "") {
alert("No contact selected.");
}
else {
$.ajax({
url: "sendMessage.php",
type: "POST",
data: {sent_by: <?php echo $currentUserId; ?>, sent_to: currentDisplayingContactId, message: typed_message}, //sent_by should be the user id and sent_to should be the contact id
success: function(data) {
$('.just-for-alert').html(data);
}
});
}
}
}
});
$('.contact').click(function() {
var contactid = $(this).val();
currentDisplayingContactId = contactid;
$('.messages').html("");
$.ajax({
url: "getMessages.php",
type: "POST",
data: {userId: <?php echo $currentUserId; ?>, contactId: contactid},
success: function(messages) {
$('.messages').html(messages);
}
});
$.ajax({
url: "navContact.php",
type: "POST",
data: {contactId: contactid},
success: function(info) {
$('.selectedContact').html(info);
}
});
});
setInterval(function(){
if(currentDisplayingContactId != "") {
$.ajax({
url: "getMessages.php",
type: "POST",
data: {userId: <?php echo $currentUserId; ?>, contactId: currentDisplayingContactId},
success: function(messages) {
$('.messages').html(messages);
}
});
}
}, 500);
});
</script>
</body>
</head>
<body>
<div class="page-container">
<div class="navbar">
<a href="#" class="logo">
<div class="logo-container">
<div class="logo-image">
<img class="navContactImage" src="./photos/logo.png" alt="PHPMessenger Logo">
</div>
<div class="logo-name">
PHPMessenger
</div>
</div>
</a>
<div class="selectedContact">
</div>
<div class="user-icon">
<?php
$sql = "SELECT image FROM mihir_users WHERE username = '$currentUserName'";
$query = mysqli_query($con, $sql);
$num_rows = mysqli_num_rows($query);
for($i = 0; $i < $num_rows; $i++) {
$result = mysqli_fetch_array($query);
$img = $result['image'];
echo '<img class="navContactImage" src="data:image;base64,'.$img.'">';
}
?>
</div>
<div class="user-dropdown hidden">
<div class="profile dropdown-button">
<p><a href="./profile.php">Profile</a></p>
</div>
<div class="logout dropdown-button">
<p><a href="./logout.php">Logout</a></p>
</div>
</div>
</div>
<div class="main">
<div class="contacts">
<?php
$sql = "SELECT username, id, image from $user_table WHERE id != $currentUserId";
$result = $con->query($sql);
if($result->num_rows > 0) {
while ($row = $result->fetch_assoc()) {
?>
<button class="contact" value="<?php echo $row['id']; ?>">
<div class="contact-image">
<?php echo '<img class="navContactImage" src="data:image;base64,'.$row['image'].'">'; ?>
</div>
<div class="contact-name">
<?php echo $row['username']; ?>
</div>
<div class="contact-status">
</div>
</button>
<?php
}
}
?>
</div>
<div class="main-separator-line">
</div>
<div class="message-container">
<div class="messages">
</div>
<div class="message-type-send">
<div class="send-form">
<input class="type-message" id="type-message" type="text" name="message" placeholder="Type a message" autocomplete="off">
<button class="send-button" type="button" name="send-message-button">Send</button>
</div>
</form>
</div>
</div>
</div>
<div class="just-for-alert">
</div>
</div>
</html>