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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| <?php | ||
| # *** LICENSE *** | ||
| # This file is part of BlogoText. | ||
| # http://lehollandaisvolant.net/blogotext/ | ||
| # | ||
| # 2006 Frederic Nassar. | ||
| # 2010-2015 Timo Van Neerden <[email protected]> | ||
| # | ||
| # BlogoText is free software. | ||
| # You can redistribute it under the terms of the MIT / X11 Licence. | ||
| # | ||
| # *** LICENSE *** | ||
|
|
||
| if (!isset($_GET['w'], $_GET['q'])) { | ||
| header("HTTP/1.0 400 Bad Request"); exit; | ||
| } | ||
|
|
||
| $expire = time() -60*60*24*7*365 ; // default: 1 year | ||
|
|
||
| if ($_GET['w'] == 'favicon') { | ||
| // target dir | ||
| $target_dir = 'favicons'; | ||
| // source file | ||
| $domain = parse_url($_GET['q'], PHP_URL_HOST); // full URL given? | ||
| if ($domain === NULL) { $domain = parse_url($_GET['q'], PHP_URL_PATH); } // or only domain name? | ||
| if ($domain === NULL) { header("HTTP/1.0 400 Bad Request"); exit; } // or some unusable crap? | ||
| $source_file = 'http://www.google.com/s2/favicons?domain='.$domain; | ||
| // dest file | ||
| $target_file = $target_dir.'/'.md5($domain).'.png'; | ||
| // expiration delay | ||
| $expire = time() -60*60*24*7*365 ; // default: 1 year | ||
| } | ||
|
|
||
| elseif ($_GET['w'] == 'gravatar') { | ||
| // target dir | ||
| $target_dir = 'gravatar'; | ||
| // source file | ||
| if (strlen($_GET['q']) !== 32) { header("HTTP/1.0 400 Bad Request"); exit; } // g is 32 character long ? if no, die. | ||
| $hash = preg_replace("[^a-f0-9]", "", $_GET['q'] ); // strip out anything that doesn't belong in a md5 hash | ||
| if (strlen($hash) != 32) { header("HTTP/1.0 400 Bad Request"); exit; } // still 32 characters ? if no, given hash wasn't genuine. die. | ||
| $target_file = $hash.'.png'; | ||
| $s = (isset($_GET['s']) and is_numeric($_GET['s'])) ? htmlspecialchars($_GET['s']) : 48; // try to get size | ||
| $d = (isset($_GET['d'])) ? htmlspecialchars($_GET['d']) : 'monsterid'; // try to get substitute image | ||
| $source_file = 'http://www.gravatar.com/avatar/'.$hash.'?s='.$s.'&d='.$d; | ||
| // dest file | ||
| $target_file = $target_dir.'/'.md5($hash).'.png'; | ||
| // expiration delay | ||
| $expire = time() -60*60*24*30 ; // default: 30 days | ||
| } | ||
|
|
||
| else { | ||
| // wrong request: returning error 400. | ||
| header("HTTP/1.0 400 Bad Request"); exit; | ||
| } | ||
|
|
||
| /* processing : | ||
| - testing cache file | ||
| - gathering source file | ||
| - converting to PNG and saving | ||
| - sending image to browser | ||
| */ | ||
|
|
||
| // cached file existing & expired : mark to remove it | ||
| $force_new = FALSE; | ||
| if (file_exists($target_file) and filemtime($target_file) < $expire) { | ||
| $force_new = TRUE; | ||
| } | ||
|
|
||
| // no cached file or expired | ||
| if (!file_exists($target_file) or $force_new === TRUE) { | ||
| // request | ||
| $curl_handle = curl_init(); | ||
| curl_setopt($curl_handle, CURLOPT_URL, $source_file); | ||
| curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, 1); | ||
| $file_content = curl_exec($curl_handle); | ||
| curl_close($curl_handle); | ||
| if ($file_content == NULL) { // impossible request | ||
| header("HTTP/1.0 404 Not Found"); exit; | ||
| } | ||
| // new request is a succes, delete old and save new file | ||
| if ($force_new === TRUE) { | ||
| unlink($target_file); | ||
| } | ||
| if (!is_dir($target_dir)) { mkdir($target_dir); } | ||
| file_put_contents($target_file, $file_content); | ||
|
|
||
| // testing format | ||
| $imagecheck = getimagesize($target_file); | ||
| if ($imagecheck['mime'] !== 'image/png') { | ||
| imagepng(imagecreatefromjpeg($target_file), $target_file.'2'); // if not, creating PNG and replacing | ||
| rename($target_file.'2', $target_file); | ||
| } | ||
| } | ||
|
|
||
| // send file to browser | ||
| header('Content-Type: image/png'); | ||
| header('Last-Modified: '.gmdate('D, d M Y H:i:s', filemtime($target_file)).' GMT'); | ||
| header('Content-Length: ' . filesize($target_file)); | ||
| header('Cache-Control: public, max-age=2628000'); | ||
| readfile($target_file); | ||
| exit; |
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