display qr code in-place, doesn't require writeable dir and saves space

htdocs/application/config/routes.php

@@ -46,6 +46,7 @@ $route['cron/:any'] = "main/cron";
 $route['view/raw/:any'] = 'main/raw';
 $route['view/rss/:any'] = 'main/rss';
 $route['view/embed/:any'] = 'main/embed';
+$route['view/qr/:any'] = 'main/qr';
 $route['view/download/:any'] = 'main/download';
 $route['view/captcha'] = 'main/captcha';
 $route['view/:any'] = 'main/view';

htdocs/application/controllers/main.php

@@ -8,6 +8,7 @@
  * - raw()
  * - rss()
  * - embed()
+ * - qr()
  * - download()
  * - lists()
  * - trends()
@@ -472,6 +473,13 @@ class Main extends CI_Controller
 		}
 	}
 	
+	function qr() 
+	{
+		$this->load->model('pastes');
+		$data = $this->pastes->getPaste(3);
+		$this->load->view('view/qr', $data);
+	}
+	
 	function download() 
 	{
 		$this->_valid_authentication();

htdocs/application/models/pastes.php

@@ -127,16 +127,6 @@ class Pastes extends CI_Model
 		}
 		$data['ip_address'] = $this->input->ip_address();
 		$this->db->insert('pastes', $data);
-
-		$pngPath = dirname(dirname(dirname(__FILE__))) . '/static/qr/' . $data['pid'] . '.png';
-		if (!file_exists($pngPath)) {
-			require_once(dirname(dirname(__FILE__)) . '/libraries/phpqrcode/qrlib.php');
-			$qrurl = $this->_get_url($data['pid']);
-			if ( $data['snipurl'] !== false ) {
-				$qrurl = $data['snipurl'];
-			}
-			QRcode::png($qrurl, $pngPath);
-		}
 		return 'view/' . $data['pid'];
 	}
 	private 
@@ -250,16 +240,6 @@ class Pastes extends CI_Model
 			$data['hits_updated'] = $row['hits_updated'];
 			$data['snipurl'] = $row['snipurl'];
 			$inreply = $row['replyto'];
-
-			$pngPath = dirname(dirname(dirname(__FILE__))) . '/static/qr/' . $data['pid'] . '.png';
-			if (!file_exists($pngPath)) {
-				require_once(dirname(dirname(__FILE__)) . '/libraries/phpqrcode/qrlib.php');
-				$qrurl = $this->_get_url($data['pid']);
-				if ( $data['snipurl'] != false ) {
-					$qrurl = $data['snipurl'];
-				}
-				QRcode::png($qrurl, $pngPath);
-			}
 		}
 		
 		if ($inreply) 
@@ -597,10 +577,6 @@ class Pastes extends CI_Model
 	{
 		$this->db->where('pid', $pid);
 		$this->db->delete('pastes');
-		$pngPath = dirname(dirname(dirname(__FILE__))) . '/static/qr/' . $pid . '.png';
-		if (file_exists($pngPath)) {
-			unlink($pngPath);
-		}
 		return;
 	}
 	

htdocs/static/qr/index.php

@@ -1,3 +0,0 @@
-<?php
-/* This file prevents Apache from listing the files located in the "qr" folder */
-?> 

htdocs/themes/default/views/view/qr.php

@@ -0,0 +1,14 @@
+<?php
+/**
+ * Class and Function List:
+ * Function list:
+ * Classes list:
+ */
+require_once ('./application/libraries/phpqrcode/qrlib.php');
+$qrurl = $url;
+
+if ($snipurl != false) 
+{
+	$qrurl = $snipurl;
+}
+QRcode::png($qrurl);

htdocs/themes/default/views/view/view.php

@@ -44,7 +44,7 @@ if(isset($insert)){
             </span>
 		</div>
 		<div class="qr">
-			<img src="<?php echo site_url('static/qr/' . $pid . '.png'); ?>">
+			<img src="<?php echo site_url('view/qr/' . $pid); ?>">
 		</div>
 	</div>
 </div>