From b72b335f3e8a06efbafd2f60d40ccae3ec14be5a Mon Sep 17 00:00:00 2001
From: PupperWoff <pupperwoff@protonmail.com>
Date: Thu, 9 Nov 2017 20:24:49 +0100
Subject: [PATCH] Added function: Option to disable GETs on boards

---
 inc/config.php    | 22 ++++++++++++++++++
 inc/functions.php | 58 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+)

diff --git a/inc/config.php b/inc/config.php
index c64567be..a9145f4a 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -1983,6 +1983,28 @@
 	//$config['public_stat']['date'] = '%m/%d/%y (%a) %l %P';
 	$config['public_stats']['date'] = '<time datetime="%Y-%m-%dT%H:%M:%SZ">%Y-%m-%dT%H:%M:%S</time>';
 
+/*
+ * ====================
+ *  Deny GET settings
+ * ====================
+ */
+
+	// Set to true if you want to disable all GETs globaly (can also be set for each board in it's config)
+	$config['post_GETs']['disable'] = false;
+
+	// Allow MODS to get the GET if they manage to post at the right time
+	$config['post_GETs']['not_disabled_for_mods'] = false;
+
+	// Minimum length of number to be considered a GET number
+	$config['post_GETs']['minimum_length'] = 5;
+
+	// Post ID that ends in a sequense of repeating number that has "repeating_digits_count" of the same number.
+	$config['post_GETs']['repeating_digits'] = true;
+	$config['post_GETs']['repeating_digits_count'] = 4;
+
+	// Post ID that is made up of consecutive digits starting with 1, e.g. 12345, 123456 ... 1234567890.
+	$config['post_GETs']['sequential_digits'] = true;
+
 /*
  * ====================
  *  Other/uncategorized
diff --git a/inc/functions.php b/inc/functions.php
index 417253a6..c64f22a9 100755
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -1267,6 +1267,17 @@ function post(array $post) {
 	// Save Post ID
 	$postID = $pdo->lastInsertId();
 
+	// Skip GETS
+	if(postGETCheck($postID)){
+		// Delete current post entry
+		$query = prepare(sprintf("DELETE FROM ``posts_%s`` WHERE `id` = :id", $board['uri']));
+		$query->bindValue(':id', $postID, PDO::PARAM_INT);
+		$query->execute() or error(db_error($query));
+
+		// Create a new post entry and return new ID
+		return post($post);
+	}
+
 	// Add file-hashes to database
 	if($post['has_file'])
 	{
@@ -1292,6 +1303,53 @@ function post(array $post) {
 	return $postID;
 }
 
+
+
+function postGETCheck($postID)
+{
+	global $config, $mod;
+
+	if (!$config['post_GETs']['disable'] || ($config['post_GETs']['not_disabled_for_mods'] && $mod && $mod['type'] >= MOD))
+		return false;
+
+	//
+	// Post ID that ends in a sequense of repeating number that has "repeating_digits_count" of the same number.
+	//
+	// \b[0-9]+([0-9])\1{4,}\b
+	//
+	// Explanation:
+	// ^(?=.{4,}$)	# Number must be of five or more digits
+	// \b      		# match word boundary
+	// [1-9]* 		# match zero or more instances of digit 1-9
+	// ([0-9]){3,}	# match three more instances of same number at the end (four or more total)
+	// \b      		# match word boundary
+	//
+	if($config['post_GETs']['repeating_digits']) {
+		// if(preg_match('/^(?=.{4,}$)\b[1-9]*([0-9])\1{3,}\b/', $postID))
+		if(preg_match('/^(?=.{' . ($config['post_GETs']['minimum_length'] - 1) . ',10}$)\b[0-9]+([0-9])\1{' . ($config['post_GETs']['repeating_digits_count'] - 1) . ',}\b/', $postID))
+			return true;
+	}
+
+	//
+	// Post ID that is made up of consecutive digits starting with 1 ex. 12345, 123456 ... 1234567890.
+	//
+	// \b(123|1234|12345|123456|123457|12345678|123456789|1234567890)\b
+	//
+	// Explanation:
+	// ^(?=.{5,}$)		# Number must be of five or more digits
+	// \b(123|1234|..	# Match 1234, or, 12345, or ...
+	//
+	if($config['post_GETs']['sequential_digits']) {
+		if(preg_match('/^(?=.{' . ($config['post_GETs']['minimum_length'] - 1) . ',10}$)\b(123|1234|12345|123456|1234567|12345678|123456789|1234567890){1}\b/', $postID))
+			return true;
+	}
+
+	// If post ID was not a GET number return false
+	return false; 
+}
+
+
+
 function bumpThread($id) {
 	global $config, $board, $build_pages;