Form cleanup and better password hashing

1 files changed, 62 insertions, 7 deletions

diff --git a/create_topic.php b/create_topic.php
index 2953646..278d0fa 100644
--- a/create_topic.php
+++ b/create_topic.php
@@ -9,12 +9,11 @@ if (!isset($_SESSION['signed_in'])) {
 } 
 ?>
 
-<form action="includes/topic_inc.php" method="post">
+<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="post">
 	<label for="topic_subject">Subject: </label><br>
 	<input type="text" name="topic_subject"><br>
 	<label for="topic_cat">Category: </label><br>
-	<select name="topic_cat">';
-		<?php
+	<?php
 		include_once 'includes/db_inc.php';
 
 		$sql = "SELECT cat_id, cat_name, cat_description FROM categories";
@@ -28,11 +27,14 @@ if (!isset($_SESSION['signed_in'])) {
 			die('There are currently no categories to post to.');
 		} 
 
+		echo '<select name="topic_cat">';
+
 		while ($row = mysqli_fetch_assoc($result)) {
 			echo '<option value="' . $row['cat_id'] . '">' . $row['cat_name'] . '</option>';
 		}
-		?>
-	</select><br>
+
+		echo '</select><br>';
+	?>
 	<label for="post_content">Write your post: </label><br>
 	<textarea name="post_content"></textarea><br>
 	<input type="submit" name="submit">
@@ -40,5 +42,58 @@ if (!isset($_SESSION['signed_in'])) {
 </section>
 
 <?php
-include 'footer.php';
-?>
\ No newline at end of file
+include_once 'includes/db_inc.php';
+
+function create_topic($dbc, $topic_subject, $topic_cat, $topic_author) {
+	$sql = "INSERT INTO topics(topic_subject, topic_date, topic_cat, topic_author) VALUES(?, NOW(), ?, ?);";
+	$stmt = mysqli_stmt_init($dbc);
+
+	if (!mysqli_stmt_prepare($stmt, $sql)) {
+		die('Could not create topic due to internal error: ' . mysqli_error($dbc));
+	}
+
+	mysqli_stmt_bind_param($stmt, "sii", $topic_subject, $topic_cat, $topic_author);
+	mysqli_stmt_execute($stmt);
+	mysqli_stmt_close($stmt);
+}
+
+function create_post($dbc, $post_content, $post_topic, $post_author) {
+	$sql = "INSERT INTO posts(post_content, post_date, post_topic, post_author) VALUES(?, NOW(), ?, ?);";
+	$stmt = mysqli_stmt_init($dbc);
+
+	if (!mysqli_stmt_prepare($stmt, $sql)) {
+		die('Could not create topic due to internal error: ' . mysqli_error($dbc));
+	}
+
+	mysqli_stmt_bind_param($stmt, "sii", $post_content, $post_topic, $post_author);
+	mysqli_stmt_execute($stmt);
+	mysqli_stmt_close($stmt);
+}
+
+function validate($data)  {
+	$data = trim($data);
+	$data = stripslashes($data);
+	$data = htmlspecialchars($data);
+	return $data;
+}
+
+if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+	$post_content = validate($_POST['post_content']);
+	$topic_subject = validate($_POST['topic_subject']);
+	$topic_cat = validate($_POST['topic_cat']);
+	$user_id = validate($_SESSION['user_id']);
+
+	create_topic($dbc, $topic_subject, $topic_cat, $user_id);
+	$topic_id = mysqli_insert_id($dbc);
+	create_post($dbc, $post_content, $topic_id, $user_id);
+
+	if (!$post_result) {
+		echo 'An error occurred creating your post: ' . mysqli_error($dbc);
+	}
+
+	header("Location: topic.php?id=" . $topic_id);
+}
+
+?>
+
+<?php include_once 'footer.php';?>
\ No newline at end of file