modules/logotool/logo.php

<?php
// $Id$

/**
 * Create an image and display a message in it (for error reporting)
 */
function logotool_display_error($text = "Error Creating Logo") {
  $im = imagecreate(181, 20);
  $bg = imagecolorallocate($im, 255, 255, 255);
  $textcolor = imagecolorallocate($im, 255, 0, 0);
  imagestring($im, 5, 2, 1, $text, $textcolor);
  header("Content-type: image/png");
  imagepng($im);
  imagedestroy($im);
} // logotool_display_error

// Include a few Drupal files and allow us to access 'variable_get'
include_once('./includes/image.inc');
include_once('./includes/file.inc');
include_once('./includes/bootstrap.inc');
drupal_bootstrap(DRUPAL_BOOTSTRAP_LATE_PAGE_CACHE);
define('LT_CWD', file_directory_path().'/logos');

// Check whether there's a logo path supplied (and make sure it resides in the logos directory to prevent exploits)
// else use the logo contained in the logotool_logo variable
$logo = $_GET['logo'] ? $_GET['logo'] : variable_get('logotool_logo', '');
$logo = realpath(file_check_location(sprintf("%s/%s", variable_get('logotool_folder', LT_CWD), $logo), variable_get('logotool_folder', LT_CWD)));

// If logo doesn't exist return an error
if (!$logo && variable_get('logotool_logo', '') != variable_get('logotool_path', 'misc/druplicon.png')) {
  logotool_display_error("Logo Not Found");
  return;
}
elseif (!$logo && variable_get('logotool_logo', '') == variable_get('logotool_path', 'misc/druplicon.png')) {
  $logo = variable_get('logotool_path', 'misc/druplicon.png');
}

// Return image information
$info = image_get_info($logo);

// If file is not an image file (or is unsupported) then return an error
if (!$info['mime_type']) {
  logotool_display_error("Unsupported Filetype");
  return;
}

// Display headers so browser knows we're outputting an image
$headers = array('Content-Type: '.$info['mime_type']);
foreach ($headers as $header) {
  header($header);
}

// Output image
$im = @readfile($logo);

// If there's been a problem, report it
if (!$im) logotool_display_error();
1	<?php
2	// $Id$
3
4	/**
5	* Create an image and display a message in it (for error reporting)
6	*/
7	function logotool_display_error($text = "Error Creating Logo") {
8	$im = imagecreate(181, 20);
9	$bg = imagecolorallocate($im, 255, 255, 255);
10	$textcolor = imagecolorallocate($im, 255, 0, 0);
11	imagestring($im, 5, 2, 1, $text, $textcolor);
12	header("Content-type: image/png");
13	imagepng($im);
14	imagedestroy($im);
15	} // logotool_display_error
16
17	// Include a few Drupal files and allow us to access 'variable_get'
18	include_once('./includes/image.inc');
19	include_once('./includes/file.inc');
20	include_once('./includes/bootstrap.inc');
21	drupal_bootstrap(DRUPAL_BOOTSTRAP_LATE_PAGE_CACHE);
22	define('LT_CWD', file_directory_path().'/logos');
23
24	// Check whether there's a logo path supplied (and make sure it resides in the logos directory to prevent exploits)
25	// else use the logo contained in the logotool_logo variable
26	$logo = $_GET['logo'] ? $_GET['logo'] : variable_get('logotool_logo', '');
27	$logo = realpath(file_check_location(sprintf("%s/%s", variable_get('logotool_folder', LT_CWD), $logo), variable_get('logotool_folder', LT_CWD)));
28
29	// If logo doesn't exist return an error
30	if (!$logo && variable_get('logotool_logo', '') != variable_get('logotool_path', 'misc/druplicon.png')) {
31	logotool_display_error("Logo Not Found");
32	return;
33	}
34	elseif (!$logo && variable_get('logotool_logo', '') == variable_get('logotool_path', 'misc/druplicon.png')) {
35	$logo = variable_get('logotool_path', 'misc/druplicon.png');
36	}
37
38	// Return image information
39	$info = image_get_info($logo);
40
41	// If file is not an image file (or is unsupported) then return an error
42	if (!$info['mime_type']) {
43	logotool_display_error("Unsupported Filetype");
44	return;
45	}
46
47	// Display headers so browser knows we're outputting an image
48	$headers = array('Content-Type: '.$info['mime_type']);
49	foreach ($headers as $header) {
50	header($header);
51	}
52
53	// Output image
54	$im = @readfile($logo);
55
56	// If there's been a problem, report it
57	if (!$im) logotool_display_error();