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main.php
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main.php
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<?php
require "connect.php";
require "sanitize.php";
session_start();
if ($_SERVER['REQUEST_METHOD'] === 'POST')
{
//###########################user to be added###################################
$fname = $_POST["firstname"];
$lname = $_POST["lastname"];
$uname = $_POST["username"];
$pword = md5($_POST["password"]);
//#################################login info###################################
$LoginName = check_input($_POST["LoginName"]);
$LoginPwd = check_input(md5($_POST["LoginPwd"]));
$login = $_POST["login"];
//#######################message details to be sent############################
$subj = $_POST["subject"];
$recps = $_POST["recipients"];
$body = $_POST["body"];
//##############################id of message read##############################
$read_id = $_POST["read_id"];
$getmail = $_POST["getmail"];
//##############################indicate logout is true#########################
$Logout = $_POST["logout"];
//######################check login info in db and respose too ajax request############################################################
if(isset($LoginName) && isset($LoginPwd) && isset($login)){
$sql = "SELECT * FROM users WHERE username = '$LoginName' AND password_digest = '$LoginPwd';";
$stmt = $db->query($sql);
$res = $stmt->fetch();
if($res != null)
{
$_SESSION["username"] = $res["username"];
$_SESSION["user_id"] = $res["id"];
echo "home.html";
}
else
{
echo "No User Found";
}
}
//#############################add a user to db and response to ajax saying user is added################################################
if (isset($uname) && isset($pword) && isset($fname) && isset($lname) && !isset($login))
{
$fname = check_input($fname);$lname = check_input($lname);$uname = check_input($uname);$pword = check_input($pword);
$sql = "INSERT INTO users(firstname, lastname, username, password_digest) VALUES('$fname', '$lname', '$uname', '$pword');";
$res = $db->query($sql);
if(res == true)
{
echo 'Successfully Added User';
}
}
//#########################add a message to db and response to ajax saying message is sent################################################
if (isset($recps) && isset($subj) && isset($body))
{
//##############################get id of sender################################
$sender_id = $_SESSION["user_id"];
//###################get current date and time##################################
$sent_date = date("Y-m-d h:i:s");
//##############################split strings by comma##########################
$recps = explode(",", $recps);
//insert message for each recipient
foreach($recps as $recp){
//get id of recipient
$stmt_2 = $db->query("SELECT id FROM users WHERE username = '$recp'");
$res_ = $stmt_2->fetch();
$recp_id = $res_["id"];
$sql = "INSERT INTO messages (recipient_ids, user_id, subject, body, date_sent) VALUES('$recp_id', '$sender_id', '$subj', '$body', '$sent_date');";
$db->exec($sql);
}
echo 'Message Sent';
}
//###############################get messages from db for user logged in###################################
if (isset($getmail))
{
//use user id of login user to retrieve messages
$recp = $_SESSION["user_id"];
$sql1 = "SELECT * FROM messages WHERE recipient_ids = '$recp' ORDER BY date_sent LIMIT 10;";
$stmt = $db->query($sql1);
$res = $stmt->fetchAll(PDO::FETCH_ASSOC);
$sql2 = "SELECT message_id FROM messages_read;";
$stmt2 = $db->query($sql2);
$res2 = $stmt2->fetchAll(PDO::FETCH_COLUMN, 0);
if(count($res) == 0)
{
echo "<h2>No Mail Found</h2>";
}
else
{
foreach($res as $mail)
{
$sql = "SELECT username FROM users WHERE id = '" . $mail["user_id"] . "';";
$new = $db->query($sql);
$sendr = $new->fetch();
if (in_array($mail["id"], $res2)){
echo '<div class="mail read">';
echo '<p>------Message Read------</p>';
}
else
{
echo '<div class="mail unread">';
}
echo '<p>FROM: ' . $sendr["username"] . ' , ' .'SUBJECT: ' . $mail["subject"] .'</p>';
echo '<p class="recv">MESSAGE: ' . $mail["body"] . '</p>';
echo '<input type="submit" class="showbutton" value="Read"/>';
echo '<p class="hide">' . $mail["id"] . '</p>';
echo '</div>';
}
}
}
//##########################################add read messages to the message_read table###########################################
if(isset($read_id)){
$read_date = date("Y/m/d");
$userid = $_SESSION["user_id"];
$stat = $db->query("SELECT message_id FROM messages_read;");
$arr = $stat->fetchAll(PDO::FETCH_COLUMN, 0);
//so that message is only added to messages_read once
if (in_array($read_id, $arr) == false){
$sql = "INSERT INTO messages_read(message_id, reader_id, date_read) VALUES('$read_id', '$userid', '$read_date');";
$db->exec($sql);
echo "Read";
}
}
//#################################logout#######################################
if($Logout == "true")
{
session_unset();
session_destroy();
}
}
?>