gistfile1.php

<?php
//...

	public function filter_final_output($buffer)
        {
                $regex = '%http://[^/]+?\.static\.flickr\.com/[0-9a-f/_]+\w?\.(jpg|png|gif)%i';
                if(preg_match_all($regex, $buffer, $matches, PREG_SET_ORDER)) {
                        foreach($matches as $match) {
                                $hashfile = 'flickr.static.' . md5($match[0]) . '.' . $match[1];
                                if(!file_exists(HABARI_PATH . '/user/files/' . $hashfile)) {
                                        $flickrimg = file_get_contents($match[0]);
                                        file_put_contents(Site::get_dir('user', '/files/') . $hashfile, $flickrimg);
                                }
                                $buffer = str_replace($match[0], Site::get_url('user') . '/files/' . $hashfile, $buffer);
                        }
                }

                $regex = '#http://' . preg_quote(Site::get_url('hostname')) . '(/[\\w/.]+?\\.(?:jpg|jpeg|png|gif|css|js))#';
                $buffer = preg_replace($regex, 'http://' . Site::get_url('hostname') . '.owenw.com$1', $buffer);

                return $buffer;
        }