Timthumb Vulnerability Scanner - Version 1.54

Version Description

  • Removed references to codegarage.com
  • Fixed trailing whitespace
Download this release

Release Info

Developer peterebutler
Plugin Icon wp plugin Timthumb Vulnerability Scanner
Version 1.54
Comparing to
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Code changes from version 1.53 to 1.54

Files changed (15) hide show
  1. cg-tvs-admin-panel-display.php +10 -59
  2. class-cg-tvs-filescanner.php +0 -0
  3. class-cg-tvs-plugin.php +33 -55
  4. trunk/index.php → index.php +0 -0
  5. locker_logo.png +0 -0
  6. readme.txt +4 -2
  7. timthumb-vulnerability-scanner.php +2 -2
  8. trunk/cg-tvs-admin-panel-display.php +0 -174
  9. trunk/cg-tvs-timthumb-latest.txt +0 -1244
  10. trunk/class-cg-tvs-filescanner.php +0 -99
  11. trunk/class-cg-tvs-plugin.php +0 -328
  12. trunk/locker_logo.png +0 -0
  13. trunk/readme.txt +0 -79
  14. trunk/screenshot-1.png +0 -0
  15. trunk/timthumb-vulnerability-scanner.php +0 -31
cg-tvs-admin-panel-display.php CHANGED
@@ -18,7 +18,7 @@ if ( !current_user_can('manage_options') ){
18
  <li><a href="tools.php?page=cg-timthumb-scanner" <?php if($_GET['tab'] != 'options'): ?>class="current"<?php endif; ?>>Scan for Issues</a> | </li>
19
  <li><a href="tools.php?page=cg-timthumb-scanner&tab=options" <?php if($_GET['tab'] == 'options'): ?>class="current"<?php endif; ?>>Options</a></li>
20
  </ul>
21
- <?php
22
  switch($_GET['tab']){
23
  case 'options':
24
  ?>
@@ -67,10 +67,10 @@ if ( !current_user_can('manage_options') ){
67
  <table class="widefat">
68
  <thead>
69
  <tr>
70
- <th class="manage-column column-cb check-column" id="cb"><input type="checkbox"></th>
71
- <th>Status</th>
72
- <th>Version</th>
73
- <th>Filename</th>
74
  <th>Full Path</th>
75
  </tr>
76
  </thead>
@@ -99,15 +99,14 @@ if ( !current_user_can('manage_options') ){
99
  </p>
100
  </form>
101
  <?php endif; ?>
102
-
103
  <?php if(!empty($this->suspicious_files)): ?>
104
  <h3 style="color:#ff0000">Suspicious Files</h3>
105
  <p>These files likely indicate that hackers have <strong>already</strong> compromised your system. They should be deleted. Please note: No files listed here does <strong>NOT</strong> guarantee you haven't already been compromised, but files listed here almost certainly means you have.</p>
106
- <p>If your server has been compromised, your best bet is to hire a professional to clean your site up (<a href="http://codegarage.com/hack-cleanup">Click here for more info</a> - even if all you want is a little advice).</p>
107
  <table class="widefat">
108
  <thead>
109
  <tr>
110
- <th>Filename</th>
111
  <th>Full Path</th>
112
  </tr>
113
  </thead>
@@ -118,57 +117,9 @@ if ( !current_user_can('manage_options') ){
118
  </tr>
119
  <?php endforeach; ?>
120
  </table>
121
- <?php if(empty($this->suspicious_files)): ?>
122
- <p><strong>Worried that you're already hacked?</strong> <a href="http://codegarage.com/hack-cleanup">Get in touch with us</a>.</p>
123
- <?php endif; ?>
124
  <?php endif; ?>
125
-
126
  </div>
127
- <?php
128
  break;
129
- } ?>
130
-
131
-
132
- <div style="float:right;width:33%;">
133
- <div class="postbox metabox-holder" style="padding-top:0px">
134
- <h3 class="hndle" style="text-align:center"><a href="http://codegarage.com/"><img src="<?php echo WP_PLUGIN_URL; ?>/<?php echo basename( dirname( __FILE__ ) ); ?>/locker_logo.png"></a></h3>
135
- <div class="inside">
136
- <p><strong>Tired of worrying about your WordPress sites?</strong></p>
137
- <p><a href="http://codegarage.com/?ref=tvs" target="_blank" >Locker</a> from <a href="http://codegarage.com/?ref=tvs" target="_blank" >Code Garage</a> provides rock solid daily backups and hack monitoring and cleanup (for malicious code and vulnerabilities like this one), as well as personal, one on one support when you need it.</p>
138
- <p style="text-align:center;padding-top:15px;"><a href="http://codegarage.com/?ref=tvs" target="_blank" class="button-primary">Click here to learn more</a></p>
139
- </div>
140
- </div>
141
-
142
- <div class="postbox metabox-holder" style="padding-top:0px">
143
- <h3 class="hndle" >Stay Informed</h3>
144
- <div class="inside">
145
- <p>Stay up to date on best practices and stay ahead of new vulnerabilities that could threaten your site.</p>
146
- <h4>WP Security Newsletter</h4>
147
- <!-- Begin MailChimp Signup Form -->
148
- <style type="text/css">
149
- #mce-EMAIL{background:#fff;
150
- border:1px solid #ccc;
151
- padding:5px;
152
- font-size:14px;
153
- width:70%;
154
- margin-bottom:10px; }
155
- </style>
156
- <div id="mc_embed_signup">
157
- <form action="http://codegarage.us1.list-manage1.com/subscribe/post?u=18eaf7659266bae84144eef88&amp;id=0029c09237" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank">
158
- <label for="mce-EMAIL"></label>
159
- <div >
160
- <input type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="email address" required>
161
- <input type="submit" value="Subscribe" name="subscribe" id="mc-embedded-subscribe" class="button-secondary">
162
- </div>
163
- </form>
164
- <!--End mc_embed_signup-->
165
- <h4>Codegarage on Twitter</h4>
166
- <a href="https://twitter.com/yourcodegarage" class="twitter-follow-button" data-show-count="false">Follow @yourcodegarage</a>
167
- <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script>
168
- <h4><a href="http://codegarage.com/blog/?src=tvs" >Codegarage Blog</a></h4>
169
- </div>
170
- </div>
171
- </div>
172
- </div>
173
- </div>
174
-
18
  <li><a href="tools.php?page=cg-timthumb-scanner" <?php if($_GET['tab'] != 'options'): ?>class="current"<?php endif; ?>>Scan for Issues</a> | </li>
19
  <li><a href="tools.php?page=cg-timthumb-scanner&tab=options" <?php if($_GET['tab'] == 'options'): ?>class="current"<?php endif; ?>>Options</a></li>
20
  </ul>
21
+ <?php
22
  switch($_GET['tab']){
23
  case 'options':
24
  ?>
67
  <table class="widefat">
68
  <thead>
69
  <tr>
70
+ <th class="manage-column column-cb check-column" id="cb"><input type="checkbox"></th>
71
+ <th>Status</th>
72
+ <th>Version</th>
73
+ <th>Filename</th>
74
  <th>Full Path</th>
75
  </tr>
76
  </thead>
99
  </p>
100
  </form>
101
  <?php endif; ?>
102
+
103
  <?php if(!empty($this->suspicious_files)): ?>
104
  <h3 style="color:#ff0000">Suspicious Files</h3>
105
  <p>These files likely indicate that hackers have <strong>already</strong> compromised your system. They should be deleted. Please note: No files listed here does <strong>NOT</strong> guarantee you haven't already been compromised, but files listed here almost certainly means you have.</p>
 
106
  <table class="widefat">
107
  <thead>
108
  <tr>
109
+ <th>Filename</th>
110
  <th>Full Path</th>
111
  </tr>
112
  </thead>
117
  </tr>
118
  <?php endforeach; ?>
119
  </table>
 
 
 
120
  <?php endif; ?>
121
+
122
  </div>
123
+ <?php
124
  break;
125
+ } ?>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
class-cg-tvs-filescanner.php CHANGED
File without changes
class-cg-tvs-plugin.php CHANGED
@@ -9,13 +9,13 @@ class CG_TVS_Plugin{
9
  var $script_safe_version;
10
  var $last_version_check;
11
  var $scan_daily;
12
-
13
  var $last_scan;
14
  var $script_instances;
15
  var $suspicious_files;
16
 
17
  var $plugin_base;
18
-
19
  var $current_timthumb_src_version;
20
  var $on_admin_page = false;
21
 
@@ -36,11 +36,11 @@ class CG_TVS_Plugin{
36
  $this->scan_daily = $storage_array['scan_daily'];
37
 
38
  $this->scan_summary = $storage_array['scan_summary'];
39
-
40
  }else{
41
- $this->script_latest_version = '2.8.5';
42
  $this->script_safe_version = '2.8.2';
43
-
44
  $this->last_version_check = 0;
45
 
46
  $this->script_instances = array();
@@ -53,15 +53,11 @@ class CG_TVS_Plugin{
53
 
54
  $this->save();
55
  }
56
- if($this->last_version_check < time()-86400){
57
- $this->get_fresh_data();
58
- $this->save();
59
- }
60
  $this->plugin_base_dir = trailingslashit(dirname(__FILE__));
61
-
62
  if( $this->scan_summary['Outdated'] > 0 && !$this->on_admin_page ){
63
  $this->show_message( $this->scan_summary['Outdated']." outdated Timthumb "._n('file', 'files', $this->scan_summary['Outdated'])." found. <a href=\"tools.php?page=cg-timthumb-scanner\">Fix "._n('it', 'them', $this->scan_summary['Outdated'])." here</a>.", $error = false );
64
- }
65
  if( $this->scan_summary['Vulnerable'] > 0 && !$this->on_admin_page ){
66
  $this->show_message( $this->scan_summary['Vulnerable']." vulnerable Timthumb "._n('file', 'files', $this->scan_summary['Vulnerable'])." found. <a href=\"tools.php?page=cg-timthumb-scanner\">Fix "._n('it', 'them', $this->scan_summary['Vulnerable'])." here</a>.", $error = true );
67
  }
@@ -70,8 +66,8 @@ class CG_TVS_Plugin{
70
  function add_menus(){
71
  add_management_page( 'Timthumb Scanner', 'Timthumb Scanner', 'manage_options', 'cg-timthumb-scanner', array(&$this, 'admin_panel_controller' ) );
72
  }
73
-
74
-
75
  function activate(){
76
  $this->init();
77
  // Clear out older version data
@@ -79,30 +75,12 @@ class CG_TVS_Plugin{
79
  delete_option( 'cg_tvs_vulnerable_files' );
80
  delete_option( 'cg_tvs_safe_files' );
81
  }
82
-
83
  function deactivate(){
84
  wp_clear_scheduled_hook('cg_tvs_daily_scan');
85
  delete_option( 'cg_tvs_data' );
86
  }
87
-
88
- function get_fresh_data(){
89
- include_once(ABSPATH . WPINC . '/class-IXR.php');
90
- $ixr_client = new IXR_Client('http://codegarage.com/comm.php');
91
- if(!$ixr_client->query('request.TimthumbInfo')){
92
- // request failed. Handle this.
93
- $this->show_message('Updated script information request failed.');
94
- }else{
95
- $response = $ixr_client->getResponse();
96
- if(!empty($response['latest_version'])){
97
- $this->script_latest_version = $response['latest_version'];
98
- }
99
- if(!empty($response['latest_version'])){
100
- $this->script_safe_version = $response['safe_version'];
101
- }
102
- }
103
- $this->last_version_check = time();
104
- }
105
-
106
  function scan( $scan_base = WP_CONTENT_DIR ){
107
  // We need to make sure we're using uniform directory separators
108
  // to match filenames
@@ -126,7 +104,7 @@ class CG_TVS_Plugin{
126
  $this->show_message('Scan completed.');
127
  $this->save();
128
  }
129
-
130
  /*
131
  function get_version_float($version){
132
  // Convert version string into a float
@@ -135,12 +113,12 @@ class CG_TVS_Plugin{
135
  for( $position = 1; $position<count($version_parts); ++$position ){
136
  $version .= intval($version_parts[$position]);
137
  }
138
-
139
  return floatval($version);
140
-
141
  }
142
  */
143
-
144
  function get_version_status($version){
145
 
146
  if( version_compare( $version, $this->script_safe_version, '<' ) ){
@@ -170,11 +148,11 @@ class CG_TVS_Plugin{
170
  if($backup == 'with-backup'){
171
  $this->backup_file( $file );
172
  }
173
-
174
  if(FALSE === $latest_src = $this->get_timthumb_src()){
175
  $this->show_message('We can\'t read updated timthumb source file, so we can\'t update the selected files. Try checking permissions on the plugin folder and the file "cg-tvs-timthumb-latest.txt", if it exists.');
176
  }
177
-
178
 
179
  if( FALSE !== $fw = @fopen( $file, 'w' ) ) {
180
  if ( fwrite( $fw, $latest_src ) ) {
@@ -187,13 +165,13 @@ class CG_TVS_Plugin{
187
  return;
188
  }
189
  }
190
-
191
  function get_timthumb_src_version(){
192
  $current_src = $this->get_timthumb_src();
193
  preg_match( "~define\s*\(\s*[\'|\"]VERSION[\'|\"],\s*[\'|\"]([^\'|\"]*)~", $current_src, $matches );
194
  $this->current_timthumb_src_version = $matches[1];
195
  }
196
-
197
  function download_new_timthumb_src(){
198
  $tmp_filename = download_url( 'http://timthumb.googlecode.com/svn/trunk/timthumb.php' );
199
  if ( is_wp_error( $tmp_filename ) ) {
@@ -212,7 +190,7 @@ class CG_TVS_Plugin{
212
  return false;
213
  }
214
  }
215
-
216
  function get_timthumb_src(){
217
  $src_file_path = $this->plugin_base_dir . 'cg-tvs-timthumb-latest.txt';
218
  if ( FALSE !== $fr = @fopen( $src_file_path, 'r' ) ) {
@@ -223,31 +201,31 @@ class CG_TVS_Plugin{
223
  }
224
  return $latest_src;
225
  }
226
-
227
  function backup_file( $path ){
228
  $backup_path = $this->plugin_base_dir . '/backups' . $path;
229
  wp_mkdir_p( dirname( $backup_path ) );
230
  copy($path, $backup_path);
231
  }
232
-
233
  function save(){
234
  $storage_array['script_latest_version'] = $this->script_latest_version;
235
  $storage_array['script_safe_version'] = $this->script_safe_version;
236
  $storage_array['last_version_check'] = $this->last_version_check;
237
-
238
  $storage_array['script_instances'] = $this->script_instances;
239
  $storage_array['suspicious_files'] = $this->suspicious_files;
240
  $storage_array['last_scan'] = $this->last_scan;
241
  $storage_array['scan_daily'] = $this->scan_daily;
242
-
243
  $storage_array['scan_summary'] = $this->scan_summary;
244
  update_option( 'cg_tvs_data', $storage_array );
245
 
246
  }
247
-
248
  function show_message( $message, $error = false )
249
  {
250
-
251
  if(!is_admin() || DOING_CRON === TRUE){
252
  return;
253
  }
@@ -257,7 +235,7 @@ class CG_TVS_Plugin{
257
  else {
258
  echo '<div id="message" class="updated fade">';
259
  }
260
-
261
  echo "<p><strong>$message</strong></p></div>";
262
  }
263
 
@@ -265,7 +243,7 @@ class CG_TVS_Plugin{
265
  if ( ! current_user_can( 'manage_options' ) ) {
266
  wp_die( __( 'You do not have sufficient permissions to access this page.' ) );
267
  }
268
-
269
  if(!is_writeable($this->plugin_base_dir)){
270
  $this->show_message('The plugin directory (at '.$this->plugin_base_dir.') is not writeable. Because of this, we can\'t download an updated copy of timthumb to use. Try changing permissions on this directory to 755 (or in certain cases, 777)', 'error');
271
  }
@@ -292,7 +270,7 @@ class CG_TVS_Plugin{
292
  case 'fixall':
293
  $nonce = $_GET['_wpnonce'];
294
  if ( wp_verify_nonce( $nonce, 'fix_all_timthumb_files' ) ) {
295
- $vulnerable_files = $this->get_vulnerable_files();
296
  if ( is_array( $vulnerable_files ) && ! empty( $vulnerable_files ) ) {
297
  foreach ( $vulnerable_files as $file ) {
298
  $this->fix_file( $file );
@@ -308,7 +286,7 @@ class CG_TVS_Plugin{
308
  $this->scan_daily = true;
309
  if ( !wp_next_scheduled( 'cg_tvs_daily_scan' ) ) {
310
  wp_schedule_event(time(), 'daily', 'cg_tvs_daily_scan');
311
- }
312
  }else{
313
  $this->scan_daily = false;
314
  wp_clear_scheduled_hook('cg_tvs_daily_scan');
@@ -317,12 +295,12 @@ class CG_TVS_Plugin{
317
  break;
318
  }
319
  }
320
-
321
  if(!empty($this->suspicious_files)){
322
- $this->show_message('<strong>Oh no!</strong> Files on your site indicate that your server has already been compromised by the timthumb vulnerability. <a href="http://codegarage.com/hack-cleanup">Get help here</a>', 'error');
323
  }
324
 
325
  include_once 'cg-tvs-admin-panel-display.php';
326
  }
327
-
328
  }
9
  var $script_safe_version;
10
  var $last_version_check;
11
  var $scan_daily;
12
+
13
  var $last_scan;
14
  var $script_instances;
15
  var $suspicious_files;
16
 
17
  var $plugin_base;
18
+
19
  var $current_timthumb_src_version;
20
  var $on_admin_page = false;
21
 
36
  $this->scan_daily = $storage_array['scan_daily'];
37
 
38
  $this->scan_summary = $storage_array['scan_summary'];
39
+
40
  }else{
41
+ $this->script_latest_version = '2.8.11';
42
  $this->script_safe_version = '2.8.2';
43
+
44
  $this->last_version_check = 0;
45
 
46
  $this->script_instances = array();
53
 
54
  $this->save();
55
  }
 
 
 
 
56
  $this->plugin_base_dir = trailingslashit(dirname(__FILE__));
57
+
58
  if( $this->scan_summary['Outdated'] > 0 && !$this->on_admin_page ){
59
  $this->show_message( $this->scan_summary['Outdated']." outdated Timthumb "._n('file', 'files', $this->scan_summary['Outdated'])." found. <a href=\"tools.php?page=cg-timthumb-scanner\">Fix "._n('it', 'them', $this->scan_summary['Outdated'])." here</a>.", $error = false );
60
+ }
61
  if( $this->scan_summary['Vulnerable'] > 0 && !$this->on_admin_page ){
62
  $this->show_message( $this->scan_summary['Vulnerable']." vulnerable Timthumb "._n('file', 'files', $this->scan_summary['Vulnerable'])." found. <a href=\"tools.php?page=cg-timthumb-scanner\">Fix "._n('it', 'them', $this->scan_summary['Vulnerable'])." here</a>.", $error = true );
63
  }
66
  function add_menus(){
67
  add_management_page( 'Timthumb Scanner', 'Timthumb Scanner', 'manage_options', 'cg-timthumb-scanner', array(&$this, 'admin_panel_controller' ) );
68
  }
69
+
70
+
71
  function activate(){
72
  $this->init();
73
  // Clear out older version data
75
  delete_option( 'cg_tvs_vulnerable_files' );
76
  delete_option( 'cg_tvs_safe_files' );
77
  }
78
+
79
  function deactivate(){
80
  wp_clear_scheduled_hook('cg_tvs_daily_scan');
81
  delete_option( 'cg_tvs_data' );
82
  }
83
+
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
84
  function scan( $scan_base = WP_CONTENT_DIR ){
85
  // We need to make sure we're using uniform directory separators
86
  // to match filenames
104
  $this->show_message('Scan completed.');
105
  $this->save();
106
  }
107
+
108
  /*
109
  function get_version_float($version){
110
  // Convert version string into a float
113
  for( $position = 1; $position<count($version_parts); ++$position ){
114
  $version .= intval($version_parts[$position]);
115
  }
116
+
117
  return floatval($version);
118
+
119
  }
120
  */
121
+
122
  function get_version_status($version){
123
 
124
  if( version_compare( $version, $this->script_safe_version, '<' ) ){
148
  if($backup == 'with-backup'){
149
  $this->backup_file( $file );
150
  }
151
+
152
  if(FALSE === $latest_src = $this->get_timthumb_src()){
153
  $this->show_message('We can\'t read updated timthumb source file, so we can\'t update the selected files. Try checking permissions on the plugin folder and the file "cg-tvs-timthumb-latest.txt", if it exists.');
154
  }
155
+
156
 
157
  if( FALSE !== $fw = @fopen( $file, 'w' ) ) {
158
  if ( fwrite( $fw, $latest_src ) ) {
165
  return;
166
  }
167
  }
168
+
169
  function get_timthumb_src_version(){
170
  $current_src = $this->get_timthumb_src();
171
  preg_match( "~define\s*\(\s*[\'|\"]VERSION[\'|\"],\s*[\'|\"]([^\'|\"]*)~", $current_src, $matches );
172
  $this->current_timthumb_src_version = $matches[1];
173
  }
174
+
175
  function download_new_timthumb_src(){
176
  $tmp_filename = download_url( 'http://timthumb.googlecode.com/svn/trunk/timthumb.php' );
177
  if ( is_wp_error( $tmp_filename ) ) {
190
  return false;
191
  }
192
  }
193
+
194
  function get_timthumb_src(){
195
  $src_file_path = $this->plugin_base_dir . 'cg-tvs-timthumb-latest.txt';
196
  if ( FALSE !== $fr = @fopen( $src_file_path, 'r' ) ) {
201
  }
202
  return $latest_src;
203
  }
204
+
205
  function backup_file( $path ){
206
  $backup_path = $this->plugin_base_dir . '/backups' . $path;
207
  wp_mkdir_p( dirname( $backup_path ) );
208
  copy($path, $backup_path);
209
  }
210
+
211
  function save(){
212
  $storage_array['script_latest_version'] = $this->script_latest_version;
213
  $storage_array['script_safe_version'] = $this->script_safe_version;
214
  $storage_array['last_version_check'] = $this->last_version_check;
215
+
216
  $storage_array['script_instances'] = $this->script_instances;
217
  $storage_array['suspicious_files'] = $this->suspicious_files;
218
  $storage_array['last_scan'] = $this->last_scan;
219
  $storage_array['scan_daily'] = $this->scan_daily;
220
+
221
  $storage_array['scan_summary'] = $this->scan_summary;
222
  update_option( 'cg_tvs_data', $storage_array );
223
 
224
  }
225
+
226
  function show_message( $message, $error = false )
227
  {
228
+
229
  if(!is_admin() || DOING_CRON === TRUE){
230
  return;
231
  }
235
  else {
236
  echo '<div id="message" class="updated fade">';
237
  }
238
+
239
  echo "<p><strong>$message</strong></p></div>";
240
  }
241
 
243
  if ( ! current_user_can( 'manage_options' ) ) {
244
  wp_die( __( 'You do not have sufficient permissions to access this page.' ) );
245
  }
246
+
247
  if(!is_writeable($this->plugin_base_dir)){
248
  $this->show_message('The plugin directory (at '.$this->plugin_base_dir.') is not writeable. Because of this, we can\'t download an updated copy of timthumb to use. Try changing permissions on this directory to 755 (or in certain cases, 777)', 'error');
249
  }
270
  case 'fixall':
271
  $nonce = $_GET['_wpnonce'];
272
  if ( wp_verify_nonce( $nonce, 'fix_all_timthumb_files' ) ) {
273
+ $vulnerable_files = $this->get_vulnerable_files();
274
  if ( is_array( $vulnerable_files ) && ! empty( $vulnerable_files ) ) {
275
  foreach ( $vulnerable_files as $file ) {
276
  $this->fix_file( $file );
286
  $this->scan_daily = true;
287
  if ( !wp_next_scheduled( 'cg_tvs_daily_scan' ) ) {
288
  wp_schedule_event(time(), 'daily', 'cg_tvs_daily_scan');
289
+ }
290
  }else{
291
  $this->scan_daily = false;
292
  wp_clear_scheduled_hook('cg_tvs_daily_scan');
295
  break;
296
  }
297
  }
298
+
299
  if(!empty($this->suspicious_files)){
300
+ $this->show_message('<strong>Oh no!</strong> Files on your site indicate that your server has already been compromised by the timthumb vulnerability.', 'error');
301
  }
302
 
303
  include_once 'cg-tvs-admin-panel-display.php';
304
  }
305
+
306
  }
trunk/index.php → index.php RENAMED
File without changes
locker_logo.png DELETED
Binary file
readme.txt CHANGED
@@ -38,8 +38,6 @@ The entire wp-content directory (even if it's not called wp-content) is scanned,
38
 
39
  No. This plugin exists to make sure your door is locked, not drag the burglers out of your house. It will run some cursory checks to see if a hacker has likely already hit your site, but has no functionality to clean up the problem.
40
 
41
- If you've already been hacked, all is not lost - there are people out there who will clean up your site for a fee. Get in touch here: http://codegarage.com/hack-cleanup
42
-
43
 
44
  == Screenshots ==
45
 
@@ -47,6 +45,10 @@ If you've already been hacked, all is not lost - there are people out there who
47
 
48
  == Changelog ==
49
 
 
 
 
 
50
  = 1.53 =
51
  * Blocked direct access to all PHP plugin files
52
  * Made sure alerts are only shown when user is viewing in admin
38
 
39
  No. This plugin exists to make sure your door is locked, not drag the burglers out of your house. It will run some cursory checks to see if a hacker has likely already hit your site, but has no functionality to clean up the problem.
40
 
 
 
41
 
42
  == Screenshots ==
43
 
45
 
46
  == Changelog ==
47
 
48
+ = 1.54 =
49
+ * Removed references to codegarage.com
50
+ * Fixed trailing whitespace
51
+
52
  = 1.53 =
53
  * Blocked direct access to all PHP plugin files
54
  * Made sure alerts are only shown when user is viewing in admin
timthumb-vulnerability-scanner.php CHANGED
@@ -4,8 +4,8 @@ Plugin Name: TimThumb Vulnerability Scanner
4
  Plugin URI: http://codegarage.com/blog/plugins/timthumb-vulnerability-scanner
5
  Description: Keep your instances of Timthumb up to date and free from vulnerabilities simply. Bonus - checks for obvious signs of compromised sites.
6
  Author: Peter Butler
7
- Version: 1.53
8
- Author URI: http://codegarage.com/
9
  */
10
 
11
  if ( ! defined('ABSPATH') ) {
4
  Plugin URI: http://codegarage.com/blog/plugins/timthumb-vulnerability-scanner
5
  Description: Keep your instances of Timthumb up to date and free from vulnerabilities simply. Bonus - checks for obvious signs of compromised sites.
6
  Author: Peter Butler
7
+ Version: 1.54
8
+ Author URI: http://peterbutler.me/
9
  */
10
 
11
  if ( ! defined('ABSPATH') ) {
trunk/cg-tvs-admin-panel-display.php DELETED
@@ -1,174 +0,0 @@
1
- <?php
2
- // Direct calls to this file are Forbidden when core files are not present
3
- if ( !function_exists('add_action') ){
4
- header('Status: 403 Forbidden');
5
- header('HTTP/1.1 403 Forbidden');
6
- die();
7
- }
8
-
9
- if ( !current_user_can('manage_options') ){
10
- header('Status: 403 Forbidden');
11
- header('HTTP/1.1 403 Forbidden');
12
- die();
13
- }
14
- ?>
15
- <div class="wrap">
16
- <h2>Timthumb Scanner</h2>
17
- <ul class="subsubsub">
18
- <li><a href="tools.php?page=cg-timthumb-scanner" <?php if($_GET['tab'] != 'options'): ?>class="current"<?php endif; ?>>Scan for Issues</a> | </li>
19
- <li><a href="tools.php?page=cg-timthumb-scanner&tab=options" <?php if($_GET['tab'] == 'options'): ?>class="current"<?php endif; ?>>Options</a></li>
20
- </ul>
21
- <?php
22
- switch($_GET['tab']){
23
- case 'options':
24
- ?>
25
- <div style="width:65%;min-width:500px;float:left;clear:both;">
26
- <div class="postbox metabox-holder">
27
- <h3>Options</h3>
28
- <form action="" method="post">
29
- <input type="hidden" name="cg-tvs-action" value="update-options">
30
- <?php wp_nonce_field( 'update_tvs_options'); ?>
31
- <table class="form-table">
32
- <tr>
33
- <th><label for="scan-daily">Automatically run this scan daily</label></th>
34
- <td><input id="scan-daily" name="scan-daily" type="checkbox" <?php if($this->scan_daily):?> checked="checked"<?php endif; ?>></td>
35
- </tr>
36
- <tr>
37
- <th><input type="submit" class="button-primary"></th>
38
- </tr>
39
- </table>
40
- </form>
41
- </div>
42
- </div>
43
- <?php
44
- break;
45
- case 'scan':
46
- default:
47
- ?>
48
- <div style="width:65%;min-width:500px;float:left;clear:both;">
49
- <div class="postbox metabox-holder">
50
- <h3 class="hndle">1. Scan</h3>
51
- <form action="" method="post">
52
- <input type="hidden" name="cg-tvs-action" value="scan">
53
- <div class="inside">
54
- <p>When you click "Scan", we'll scan all of the php in your wp-content directory looking for the timthumb script. We'll check the version of every found file to see if the file is outdated or unsafe. Outdated or unsafe files can be 1 click updated to the latest version.</p>
55
- <p style="text-align:center;padding-top:15px;"><input type="submit" class="button-primary" value="Scan!"></p>
56
- </div>
57
- </form>
58
- </div>
59
- <h3>Scan Results</h3>
60
- <?php if($this->last_scan == 0): ?>
61
- <p>It doesn't look like you've run a scan yet. Click the "Scan!" button above to get started.</p>
62
- <?php else: ?>
63
- <p>The latest version of the Timthumb script is <strong><?php echo $this->script_latest_version; ?></strong>. The oldest safe version is version <strong><?php echo $this->script_safe_version; ?></strong>. Last scan run <?php echo human_time_diff($this->last_scan) ?> ago.</p>
64
- <form action="" method="post">
65
- <input type="hidden" name="cg-tvs-action" value="fix">
66
- <?php wp_nonce_field( 'fix_timthumb_files'); ?>
67
- <table class="widefat">
68
- <thead>
69
- <tr>
70
- <th class="manage-column column-cb check-column" id="cb"><input type="checkbox"></th>
71
- <th>Status</th>
72
- <th>Version</th>
73
- <th>Filename</th>
74
- <th>Full Path</th>
75
- </tr>
76
- </thead>
77
- <?php if(empty($this->script_instances)): ?>
78
- <tr>
79
- <td colspan="5" style="text-align:center"><strong style="color:forestgreen">No instances of timthumb were found on your server.</strong></td>
80
- </tr>
81
- <?php else: ?>
82
- <?php foreach($this->script_instances as $key=>$instance): ?>
83
- <tr class="<?php if($alternate > 0){ echo 'alternate'; $alternate = -1; }else{ $alternate = 1; } ?>">
84
- <?php if($this->get_version_status($instance['version']) == 'Up to Date'): ?>
85
- <th scope="row" class="check-column">&nbsp;</th>
86
- <?php else: ?>
87
- <th scope="row" class="check-column"><input type="checkbox" name="fix[]" value="<?php echo $key; ?>"></td>
88
- <?php endif; ?>
89
- <td><?php echo $this->display_version_status($instance['version']); ?></td>
90
- <td><?php echo $instance['version']; ?></td>
91
- <td><?php echo basename($instance['path']); ?></td>
92
- <td><?php echo $instance['path']; ?></td>
93
- </tr>
94
- <?php endforeach; ?>
95
- <?php endif; ?>
96
- </table>
97
- <p>
98
- <input type="submit" class="button-primary" value="Upgrade Selected Files">
99
- </p>
100
- </form>
101
- <?php endif; ?>
102
-
103
- <?php if(!empty($this->suspicious_files)): ?>
104
- <h3 style="color:#ff0000">Suspicious Files</h3>
105
- <p>These files likely indicate that hackers have <strong>already</strong> compromised your system. They should be deleted. Please note: No files listed here does <strong>NOT</strong> guarantee you haven't already been compromised, but files listed here almost certainly means you have.</p>
106
- <p>If your server has been compromised, your best bet is to hire a professional to clean your site up (<a href="http://codegarage.com/hack-cleanup">Click here for more info</a> - even if all you want is a little advice).</p>
107
- <table class="widefat">
108
- <thead>
109
- <tr>
110
- <th>Filename</th>
111
- <th>Full Path</th>
112
- </tr>
113
- </thead>
114
- <?php foreach($this->suspicious_files as $key=>$file): ?>
115
- <tr class="<?php if($alternate > 0){ echo 'alternate'; $alternate = -1; }else{ $alternate = 1; } ?>">
116
- <td><?php echo basename($file); ?></td>
117
- <td><?php echo $file; ?></td>
118
- </tr>
119
- <?php endforeach; ?>
120
- </table>
121
- <?php if(empty($this->suspicious_files)): ?>
122
- <p><strong>Worried that you're already hacked?</strong> <a href="http://codegarage.com/hack-cleanup">Get in touch with us</a>.</p>
123
- <?php endif; ?>
124
- <?php endif; ?>
125
-
126
- </div>
127
- <?php
128
- break;
129
- } ?>
130
-
131
-
132
- <div style="float:right;width:33%;">
133
- <div class="postbox metabox-holder" style="padding-top:0px">
134
- <h3 class="hndle" style="text-align:center"><a href="http://codegarage.com/"><img src="<?php echo WP_PLUGIN_URL; ?>/<?php echo basename( dirname( __FILE__ ) ); ?>/locker_logo.png"></a></h3>
135
- <div class="inside">
136
- <p><strong>Tired of worrying about your WordPress sites?</strong></p>
137
- <p><a href="http://codegarage.com/?ref=tvs" target="_blank" >Locker</a> from <a href="http://codegarage.com/?ref=tvs" target="_blank" >Code Garage</a> provides rock solid daily backups and hack monitoring and cleanup (for malicious code and vulnerabilities like this one), as well as personal, one on one support when you need it.</p>
138
- <p style="text-align:center;padding-top:15px;"><a href="http://codegarage.com/?ref=tvs" target="_blank" class="button-primary">Click here to learn more</a></p>
139
- </div>
140
- </div>
141
-
142
- <div class="postbox metabox-holder" style="padding-top:0px">
143
- <h3 class="hndle" >Stay Informed</h3>
144
- <div class="inside">
145
- <p>Stay up to date on best practices and stay ahead of new vulnerabilities that could threaten your site.</p>
146
- <h4>WP Security Newsletter</h4>
147
- <!-- Begin MailChimp Signup Form -->
148
- <style type="text/css">
149
- #mce-EMAIL{background:#fff;
150
- border:1px solid #ccc;
151
- padding:5px;
152
- font-size:14px;
153
- width:70%;
154
- margin-bottom:10px; }
155
- </style>
156
- <div id="mc_embed_signup">
157
- <form action="http://codegarage.us1.list-manage1.com/subscribe/post?u=18eaf7659266bae84144eef88&amp;id=0029c09237" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank">
158
- <label for="mce-EMAIL"></label>
159
- <div >
160
- <input type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="email address" required>
161
- <input type="submit" value="Subscribe" name="subscribe" id="mc-embedded-subscribe" class="button-secondary">
162
- </div>
163
- </form>
164
- <!--End mc_embed_signup-->
165
- <h4>Codegarage on Twitter</h4>
166
- <a href="https://twitter.com/yourcodegarage" class="twitter-follow-button" data-show-count="false">Follow @yourcodegarage</a>
167
- <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script>
168
- <h4><a href="http://codegarage.com/blog/?src=tvs" >Codegarage Blog</a></h4>
169
- </div>
170
- </div>
171
- </div>
172
- </div>
173
- </div>
174
-
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
trunk/cg-tvs-timthumb-latest.txt DELETED
@@ -1,1244 +0,0 @@
1
- <?php
2
- /**
3
- * TimThumb by Ben Gillbanks and Mark Maunder
4
- * Based on work done by Tim McDaniels and Darren Hoyt
5
- * http://code.google.com/p/timthumb/
6
- *
7
- * GNU General Public License, version 2
8
- * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
9
- *
10
- * Examples and documentation available on the project homepage
11
- * http://www.binarymoon.co.uk/projects/timthumb/
12
- *
13
- * $Rev$
14
- */
15
-
16
- /*
17
- * --- TimThumb CONFIGURATION ---
18
- * To edit the configs it is best to create a file called timthumb-config.php
19
- * and define variables you want to customize in there. It will automatically be
20
- * loaded by timthumb. This will save you having to re-edit these variables
21
- * everytime you download a new version
22
- */
23
- define ('VERSION', '2.8.10'); // Version of this script
24
- //Load a config file if it exists. Otherwise, use the values below
25
- if( file_exists(dirname(__FILE__) . '/timthumb-config.php')) require_once('timthumb-config.php');
26
- if(! defined('DEBUG_ON') ) define ('DEBUG_ON', false); // Enable debug logging to web server error log (STDERR)
27
- if(! defined('DEBUG_LEVEL') ) define ('DEBUG_LEVEL', 1); // Debug level 1 is less noisy and 3 is the most noisy
28
- if(! defined('MEMORY_LIMIT') ) define ('MEMORY_LIMIT', '30M'); // Set PHP memory limit
29
- if(! defined('BLOCK_EXTERNAL_LEECHERS') ) define ('BLOCK_EXTERNAL_LEECHERS', false); // If the image or webshot is being loaded on an external site, display a red "No Hotlinking" gif.
30
-
31
- //Image fetching and caching
32
- if(! defined('ALLOW_EXTERNAL') ) define ('ALLOW_EXTERNAL', TRUE); // Allow image fetching from external websites. Will check against ALLOWED_SITES if ALLOW_ALL_EXTERNAL_SITES is false
33
- if(! defined('ALLOW_ALL_EXTERNAL_SITES') ) define ('ALLOW_ALL_EXTERNAL_SITES', false); // Less secure.
34
- if(! defined('FILE_CACHE_ENABLED') ) define ('FILE_CACHE_ENABLED', TRUE); // Should we store resized/modified images on disk to speed things up?
35
- if(! defined('FILE_CACHE_TIME_BETWEEN_CLEANS')) define ('FILE_CACHE_TIME_BETWEEN_CLEANS', 86400); // How often the cache is cleaned
36
-
37
- if(! defined('FILE_CACHE_MAX_FILE_AGE') ) define ('FILE_CACHE_MAX_FILE_AGE', 86400); // How old does a file have to be to be deleted from the cache
38
- if(! defined('FILE_CACHE_SUFFIX') ) define ('FILE_CACHE_SUFFIX', '.timthumb.txt'); // What to put at the end of all files in the cache directory so we can identify them
39
- if(! defined('FILE_CACHE_PREFIX') ) define ('FILE_CACHE_PREFIX', 'timthumb'); // What to put at the beg of all files in the cache directory so we can identify them
40
- if(! defined('FILE_CACHE_DIRECTORY') ) define ('FILE_CACHE_DIRECTORY', './cache'); // Directory where images are cached. Left blank it will use the system temporary directory (which is better for security)
41
- if(! defined('MAX_FILE_SIZE') ) define ('MAX_FILE_SIZE', 10485760); // 10 Megs is 10485760. This is the max internal or external file size that we'll process.
42
- if(! defined('CURL_TIMEOUT') ) define ('CURL_TIMEOUT', 20); // Timeout duration for Curl. This only applies if you have Curl installed and aren't using PHP's default URL fetching mechanism.
43
- if(! defined('WAIT_BETWEEN_FETCH_ERRORS') ) define ('WAIT_BETWEEN_FETCH_ERRORS', 3600); //Time to wait between errors fetching remote file
44
-
45
- //Browser caching
46
- if(! defined('BROWSER_CACHE_MAX_AGE') ) define ('BROWSER_CACHE_MAX_AGE', 864000); // Time to cache in the browser
47
- if(! defined('BROWSER_CACHE_DISABLE') ) define ('BROWSER_CACHE_DISABLE', false); // Use for testing if you want to disable all browser caching
48
-
49
- //Image size and defaults
50
- if(! defined('MAX_WIDTH') ) define ('MAX_WIDTH', 1500); // Maximum image width
51
- if(! defined('MAX_HEIGHT') ) define ('MAX_HEIGHT', 1500); // Maximum image height
52
- if(! defined('NOT_FOUND_IMAGE') ) define ('NOT_FOUND_IMAGE', ''); // Image to serve if any 404 occurs
53
- if(! defined('ERROR_IMAGE') ) define ('ERROR_IMAGE', ''); // Image to serve if an error occurs instead of showing error message
54
- if(! defined('PNG_IS_TRANSPARENT') ) define ('PNG_IS_TRANSPARENT', FALSE); //42 Define if a png image should have a transparent background color. Use False value if you want to display a custom coloured canvas_colour
55
- if(! defined('DEFAULT_Q') ) define ('DEFAULT_Q', 90); // Default image quality. Allows overrid in timthumb-config.php
56
- if(! defined('DEFAULT_ZC') ) define ('DEFAULT_ZC', 1); // Default zoom/crop setting. Allows overrid in timthumb-config.php
57
- if(! defined('DEFAULT_F') ) define ('DEFAULT_F', ''); // Default image filters. Allows overrid in timthumb-config.php
58
- if(! defined('DEFAULT_S') ) define ('DEFAULT_S', 0); // Default sharpen value. Allows overrid in timthumb-config.php
59
- if(! defined('DEFAULT_CC') ) define ('DEFAULT_CC', 'ffffff'); // Default canvas colour. Allows overrid in timthumb-config.php
60
-
61
-
62
- //Image compression is enabled if either of these point to valid paths
63
-
64
- //These are now disabled by default because the file sizes of PNGs (and GIFs) are much smaller than we used to generate.
65
- //They only work for PNGs. GIFs and JPEGs are not affected.
66
- if(! defined('OPTIPNG_ENABLED') ) define ('OPTIPNG_ENABLED', false);
67
- if(! defined('OPTIPNG_PATH') ) define ('OPTIPNG_PATH', '/usr/bin/optipng'); //This will run first because it gives better compression than pngcrush.
68
- if(! defined('PNGCRUSH_ENABLED') ) define ('PNGCRUSH_ENABLED', false);
69
- if(! defined('PNGCRUSH_PATH') ) define ('PNGCRUSH_PATH', '/usr/bin/pngcrush'); //This will only run if OPTIPNG_PATH is not set or is not valid
70
-
71
- /*
72
- -------====Website Screenshots configuration - BETA====-------
73
-
74
- If you just want image thumbnails and don't want website screenshots, you can safely leave this as is.
75
-
76
- If you would like to get website screenshots set up, you will need root access to your own server.
77
-
78
- Enable ALLOW_ALL_EXTERNAL_SITES so you can fetch any external web page. This is more secure now that we're using a non-web folder for cache.
79
- Enable BLOCK_EXTERNAL_LEECHERS so that your site doesn't generate thumbnails for the whole Internet.
80
-
81
- Instructions to get website screenshots enabled on Ubuntu Linux:
82
-
83
- 1. Install Xvfb with the following command: sudo apt-get install subversion libqt4-webkit libqt4-dev g++ xvfb
84
- 2. Go to a directory where you can download some code
85
- 3. Check-out the latest version of CutyCapt with the following command: svn co https://cutycapt.svn.sourceforge.net/svnroot/cutycapt
86
- 4. Compile CutyCapt by doing: cd cutycapt/CutyCapt
87
- 5. qmake
88
- 6. make
89
- 7. cp CutyCapt /usr/local/bin/
90
- 8. Test it by running: xvfb-run --server-args="-screen 0, 1024x768x24" CutyCapt --url="http://markmaunder.com/" --out=test.png
91
- 9. If you get a file called test.png with something in it, it probably worked. Now test the script by accessing it as follows:
92
- 10. http://yoursite.com/path/to/timthumb.php?src=http://markmaunder.com/&webshot=1
93
-
94
- Notes on performance:
95
- The first time a webshot loads, it will take a few seconds.
96
- From then on it uses the regular timthumb caching mechanism with the configurable options above
97
- and loading will be very fast.
98
-
99
- --ADVANCED USERS ONLY--
100
- If you'd like a slight speedup (about 25%) and you know Linux, you can run the following command which will keep Xvfb running in the background.
101
- nohup Xvfb :100 -ac -nolisten tcp -screen 0, 1024x768x24 > /dev/null 2>&1 &
102
- Then set WEBSHOT_XVFB_RUNNING = true below. This will save your server having to fire off a new Xvfb server and shut it down every time a new shot is generated.
103
- You will need to take responsibility for keeping Xvfb running in case it crashes. (It seems pretty stable)
104
- You will also need to take responsibility for server security if you're running Xvfb as root.
105
-
106
-
107
- */
108
- if(! defined('WEBSHOT_ENABLED') ) define ('WEBSHOT_ENABLED', false); //Beta feature. Adding webshot=1 to your query string will cause the script to return a browser screenshot rather than try to fetch an image.
109
- if(! defined('WEBSHOT_CUTYCAPT') ) define ('WEBSHOT_CUTYCAPT', '/usr/local/bin/CutyCapt'); //The path to CutyCapt.
110
- if(! defined('WEBSHOT_XVFB') ) define ('WEBSHOT_XVFB', '/usr/bin/xvfb-run'); //The path to the Xvfb server
111
- if(! defined('WEBSHOT_SCREEN_X') ) define ('WEBSHOT_SCREEN_X', '1024'); //1024 works ok
112
- if(! defined('WEBSHOT_SCREEN_Y') ) define ('WEBSHOT_SCREEN_Y', '768'); //768 works ok
113
- if(! defined('WEBSHOT_COLOR_DEPTH') ) define ('WEBSHOT_COLOR_DEPTH', '24'); //I haven't tested anything besides 24
114
- if(! defined('WEBSHOT_IMAGE_FORMAT') ) define ('WEBSHOT_IMAGE_FORMAT', 'png'); //png is about 2.5 times the size of jpg but is a LOT better quality
115
- if(! defined('WEBSHOT_TIMEOUT') ) define ('WEBSHOT_TIMEOUT', '20'); //Seconds to wait for a webshot
116
- if(! defined('WEBSHOT_USER_AGENT') ) define ('WEBSHOT_USER_AGENT', "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.18) Gecko/20110614 Firefox/3.6.18"); //I hate to do this, but a non-browser robot user agent might not show what humans see. So we pretend to be Firefox
117
- if(! defined('WEBSHOT_JAVASCRIPT_ON') ) define ('WEBSHOT_JAVASCRIPT_ON', true); //Setting to false might give you a slight speedup and block ads. But it could cause other issues.
118
- if(! defined('WEBSHOT_JAVA_ON') ) define ('WEBSHOT_JAVA_ON', false); //Have only tested this as fase
119
- if(! defined('WEBSHOT_PLUGINS_ON') ) define ('WEBSHOT_PLUGINS_ON', true); //Enable flash and other plugins
120
- if(! defined('WEBSHOT_PROXY') ) define ('WEBSHOT_PROXY', ''); //In case you're behind a proxy server.
121
- if(! defined('WEBSHOT_XVFB_RUNNING') ) define ('WEBSHOT_XVFB_RUNNING', false); //ADVANCED: Enable this if you've got Xvfb running in the background.
122
-
123
-
124
- // If ALLOW_EXTERNAL is true and ALLOW_ALL_EXTERNAL_SITES is false, then external images will only be fetched from these domains and their subdomains.
125
- if(! isset($ALLOWED_SITES)){
126
- $ALLOWED_SITES = array (
127
- 'flickr.com',
128
- 'staticflickr.com',
129
- 'picasa.com',
130
- 'img.youtube.com',
131
- 'upload.wikimedia.org',
132
- 'photobucket.com',
133
- 'imgur.com',
134
- 'imageshack.us',
135
- 'tinypic.com',
136
- );
137
- }
138
- // -------------------------------------------------------------
139
- // -------------- STOP EDITING CONFIGURATION HERE --------------
140
- // -------------------------------------------------------------
141
-
142
- timthumb::start();
143
-
144
- class timthumb {
145
- protected $src = "";
146
- protected $is404 = false;
147
- protected $docRoot = "";
148
- protected $lastURLError = false;
149
- protected $localImage = "";
150
- protected $localImageMTime = 0;
151
- protected $url = false;
152
- protected $myHost = "";
153
- protected $isURL = false;
154
- protected $cachefile = '';
155
- protected $errors = array();
156
- protected $toDeletes = array();
157
- protected $cacheDirectory = '';
158
- protected $startTime = 0;
159
- protected $lastBenchTime = 0;
160
- protected $cropTop = false;
161
- protected $salt = "";
162
- protected $fileCacheVersion = 1; //Generally if timthumb.php is modifed (upgraded) then the salt changes and all cache files are recreated. This is a backup mechanism to force regen.
163
- protected $filePrependSecurityBlock = "<?php die('Execution denied!'); //"; //Designed to have three letter mime type, space, question mark and greater than symbol appended. 6 bytes total.
164
- protected static $curlDataWritten = 0;
165
- protected static $curlFH = false;
166
- public static function start(){
167
- $tim = new timthumb();
168
- $tim->handleErrors();
169
- $tim->securityChecks();
170
- if($tim->tryBrowserCache()){
171
- exit(0);
172
- }
173
- $tim->handleErrors();
174
- if(FILE_CACHE_ENABLED && $tim->tryServerCache()){
175
- exit(0);
176
- }
177
- $tim->handleErrors();
178
- $tim->run();
179
- $tim->handleErrors();
180
- exit(0);
181
- }
182
- public function __construct(){
183
- global $ALLOWED_SITES;
184
- $this->startTime = microtime(true);
185
- date_default_timezone_set('UTC');
186
- $this->debug(1, "Starting new request from " . $this->getIP() . " to " . $_SERVER['REQUEST_URI']);
187
- $this->calcDocRoot();
188
- //On windows systems I'm assuming fileinode returns an empty string or a number that doesn't change. Check this.
189
- $this->salt = @filemtime(__FILE__) . '-' . @fileinode(__FILE__);
190
- $this->debug(3, "Salt is: " . $this->salt);
191
- if(FILE_CACHE_DIRECTORY){
192
- if(! is_dir(FILE_CACHE_DIRECTORY)){
193
- @mkdir(FILE_CACHE_DIRECTORY);
194
- if(! is_dir(FILE_CACHE_DIRECTORY)){
195
- $this->error("Could not create the file cache directory.");
196
- return false;
197
- }
198
- }
199
- $this->cacheDirectory = FILE_CACHE_DIRECTORY;
200
- if (!touch($this->cacheDirectory . '/index.html')) {
201
- $this->error("Could not create the index.html file - to fix this create an empty file named index.html file in the cache directory.");
202
- }
203
- } else {
204
- $this->cacheDirectory = sys_get_temp_dir();
205
- }
206
- //Clean the cache before we do anything because we don't want the first visitor after FILE_CACHE_TIME_BETWEEN_CLEANS expires to get a stale image.
207
- $this->cleanCache();
208
-
209
- $this->myHost = preg_replace('/^www\./i', '', $_SERVER['HTTP_HOST']);
210
- $this->src = $this->param('src');
211
- $this->url = parse_url($this->src);
212
- $this->src = preg_replace('/https?:\/\/(?:www\.)?' . $this->myHost . '/i', '', $this->src);
213
-
214
- if(strlen($this->src) <= 3){
215
- $this->error("No image specified");
216
- return false;
217
- }
218
- if(BLOCK_EXTERNAL_LEECHERS && array_key_exists('HTTP_REFERER', $_SERVER) && (! preg_match('/^https?:\/\/(?:www\.)?' . $this->myHost . '(?:$|\/)/i', $_SERVER['HTTP_REFERER']))){
219
- // base64 encoded red image that says 'no hotlinkers'
220
- // nothing to worry about! :)
221
- $imgData = base64_decode("R0lGODlhUAAMAIAAAP8AAP///yH5BAAHAP8ALAAAAABQAAwAAAJpjI+py+0Po5y0OgAMjjv01YUZ\nOGplhWXfNa6JCLnWkXplrcBmW+spbwvaVr/cDyg7IoFC2KbYVC2NQ5MQ4ZNao9Ynzjl9ScNYpneb\nDULB3RP6JuPuaGfuuV4fumf8PuvqFyhYtjdoeFgAADs=");
222
- header('Content-Type: image/gif');
223
- header('Content-Length: ' . sizeof($imgData));
224
- header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
225
- header("Pragma: no-cache");
226
- header('Expires: ' . gmdate ('D, d M Y H:i:s', time()));
227
- echo $imgData;
228
- return false;
229
- exit(0);
230
- }
231
- if(preg_match('/^https?:\/\/[^\/]+/i', $this->src)){
232
- $this->debug(2, "Is a request for an external URL: " . $this->src);
233
- $this->isURL = true;
234
- } else {
235
- $this->debug(2, "Is a request for an internal file: " . $this->src);
236
- }
237
- if($this->isURL && (! ALLOW_EXTERNAL)){
238
- $this->error("You are not allowed to fetch images from an external website.");
239
- return false;
240
- }
241
- if($this->isURL){
242
- if(ALLOW_ALL_EXTERNAL_SITES){
243
- $this->debug(2, "Fetching from all external sites is enabled.");
244
- } else {
245
- $this->debug(2, "Fetching only from selected external sites is enabled.");
246
- $allowed = false;
247
- foreach($ALLOWED_SITES as $site){
248
- if ((strtolower(substr($this->url['host'],-strlen($site)-1)) === strtolower(".$site")) || (strtolower($this->url['host'])===strtolower($site))) {
249
- $this->debug(3, "URL hostname {$this->url['host']} matches $site so allowing.");
250
- $allowed = true;
251
- }
252
- }
253
- if(! $allowed){
254
- return $this->error("You may not fetch images from that site. To enable this site in timthumb, you can either add it to \$ALLOWED_SITES and set ALLOW_EXTERNAL=true. Or you can set ALLOW_ALL_EXTERNAL_SITES=true, depending on your security needs.");
255
- }
256
- }
257
- }
258
-
259
- $cachePrefix = ($this->isURL ? '_ext_' : '_int_');
260
- if($this->isURL){
261
- $arr = explode('&', $_SERVER ['QUERY_STRING']);
262
- asort($arr);
263
- $this->cachefile = $this->cacheDirectory . '/' . FILE_CACHE_PREFIX . $cachePrefix . md5($this->salt . implode('', $arr) . $this->fileCacheVersion) . FILE_CACHE_SUFFIX;
264
- } else {
265
- $this->localImage = $this->getLocalImagePath($this->src);
266
- if(! $this->localImage){
267
- $this->debug(1, "Could not find the local image: {$this->localImage}");
268
- $this->error("Could not find the internal image you specified.");
269
- $this->set404();
270
- return false;
271
- }
272
- $this->debug(1, "Local image path is {$this->localImage}");
273
- $this->localImageMTime = @filemtime($this->localImage);
274
- //We include the mtime of the local file in case in changes on disk.
275
- $this->cachefile = $this->cacheDirectory . '/' . FILE_CACHE_PREFIX . $cachePrefix . md5($this->salt . $this->localImageMTime . $_SERVER ['QUERY_STRING'] . $this->fileCacheVersion) . FILE_CACHE_SUFFIX;
276
- }
277
- $this->debug(2, "Cache file is: " . $this->cachefile);
278
-
279
- return true;
280
- }
281
- public function __destruct(){
282
- foreach($this->toDeletes as $del){
283
- $this->debug(2, "Deleting temp file $del");
284
- @unlink($del);
285
- }
286
- }
287
- public function run(){
288
- if($this->isURL){
289
- if(! ALLOW_EXTERNAL){
290
- $this->debug(1, "Got a request for an external image but ALLOW_EXTERNAL is disabled so returning error msg.");
291
- $this->error("You are not allowed to fetch images from an external website.");
292
- return false;
293
- }
294
- $this->debug(3, "Got request for external image. Starting serveExternalImage.");
295
- if($this->param('webshot')){
296
- if(WEBSHOT_ENABLED){
297
- $this->debug(3, "webshot param is set, so we're going to take a webshot.");
298
- $this->serveWebshot();
299
- } else {
300
- $this->error("You added the webshot parameter but webshots are disabled on this server. You need to set WEBSHOT_ENABLED == true to enable webshots.");
301
- }
302
- } else {
303
- $this->debug(3, "webshot is NOT set so we're going to try to fetch a regular image.");
304
- $this->serveExternalImage();
305
-
306
- }
307
- } else {
308
- $this->debug(3, "Got request for internal image. Starting serveInternalImage()");
309
- $this->serveInternalImage();
310
- }
311
- return true;
312
- }
313
- protected function handleErrors(){
314
- if($this->haveErrors()){
315
- if(NOT_FOUND_IMAGE && $this->is404()){
316
- if($this->serveImg(NOT_FOUND_IMAGE)){
317
- exit(0);
318
- } else {
319
- $this->error("Additionally, the 404 image that is configured could not be found or there was an error serving it.");
320
- }
321
- }
322
- if(ERROR_IMAGE){
323
- if($this->serveImg(ERROR_IMAGE)){
324
- exit(0);
325
- } else {
326
- $this->error("Additionally, the error image that is configured could not be found or there was an error serving it.");
327
- }
328
- }
329
- $this->serveErrors();
330
- exit(0);
331
- }
332
- return false;
333
- }
334
- protected function tryBrowserCache(){
335
- if(BROWSER_CACHE_DISABLE){ $this->debug(3, "Browser caching is disabled"); return false; }
336
- if(!empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) ){
337
- $this->debug(3, "Got a conditional get");
338
- $mtime = false;
339
- //We've already checked if the real file exists in the constructor
340
- if(! is_file($this->cachefile)){
341
- //If we don't have something cached, regenerate the cached image.
342
- return false;
343
- }
344
- if($this->localImageMTime){
345
- $mtime = $this->localImageMTime;
346
- $this->debug(3, "Local real file's modification time is $mtime");
347
- } else if(is_file($this->cachefile)){ //If it's not a local request then use the mtime of the cached file to determine the 304
348
- $mtime = @filemtime($this->cachefile);
349
- $this->debug(3, "Cached file's modification time is $mtime");
350
- }
351
- if(! $mtime){ return false; }
352
-
353
- $iftime = strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']);
354
- $this->debug(3, "The conditional get's if-modified-since unixtime is $iftime");
355
- if($iftime < 1){
356
- $this->debug(3, "Got an invalid conditional get modified since time. Returning false.");
357
- return false;
358
- }
359
- if($iftime < $mtime){ //Real file or cache file has been modified since last request, so force refetch.
360
- $this->debug(3, "File has been modified since last fetch.");
361
- return false;
362
- } else { //Otherwise serve a 304
363
- $this->debug(3, "File has not been modified since last get, so serving a 304.");
364
- header ($_SERVER['SERVER_PROTOCOL'] . ' 304 Not Modified');
365
- $this->debug(1, "Returning 304 not modified");
366
- return true;
367
- }
368
- }
369
- return false;
370
- }
371
- protected function tryServerCache(){
372
- $this->debug(3, "Trying server cache");
373
- if(file_exists($this->cachefile)){
374
- $this->debug(3, "Cachefile {$this->cachefile} exists");
375
- if($this->isURL){
376
- $this->debug(3, "This is an external request, so checking if the cachefile is empty which means the request failed previously.");
377
- if(filesize($this->cachefile) < 1){
378
- $this->debug(3, "Found an empty cachefile indicating a failed earlier request. Checking how old it is.");
379
- //Fetching error occured previously
380
- if(time() - @filemtime($this->cachefile) > WAIT_BETWEEN_FETCH_ERRORS){
381
- $this->debug(3, "File is older than " . WAIT_BETWEEN_FETCH_ERRORS . " seconds. Deleting and returning false so app can try and load file.");
382
- @unlink($this->cachefile);
383
- return false; //to indicate we didn't serve from cache and app should try and load
384
- } else {
385
- $this->debug(3, "Empty cachefile is still fresh so returning message saying we had an error fetching this image from remote host.");
386
- $this->set404();
387
- $this->error("An error occured fetching image.");
388
- return false;
389
- }
390
- }
391
- } else {
392
- $this->debug(3, "Trying to serve cachefile {$this->cachefile}");
393
- }
394
- if($this->serveCacheFile()){
395
- $this->debug(3, "Succesfully served cachefile {$this->cachefile}");
396
- return true;
397
- } else {
398
- $this->debug(3, "Failed to serve cachefile {$this->cachefile} - Deleting it from cache.");
399
- //Image serving failed. We can't retry at this point, but lets remove it from cache so the next request recreates it
400
- @unlink($this->cachefile);
401
- return true;
402
- }
403
- }
404
- }
405
- protected function error($err){
406
- $this->debug(3, "Adding error message: $err");
407
- $this->errors[] = $err;
408
- return false;
409
-
410
- }
411
- protected function haveErrors(){
412
- if(sizeof($this->errors) > 0){
413
- return true;
414
- }
415
- return false;
416
- }
417
- protected function serveErrors(){
418
- header ($_SERVER['SERVER_PROTOCOL'] . ' 400 Bad Request');
419
- $html = '<ul>';
420
- foreach($this->errors as $err){
421
- $html .= '<li>' . htmlentities($err) . '</li>';
422
- }
423
- $html .= '</ul>';
424
- echo '<h1>A TimThumb error has occured</h1>The following error(s) occured:<br />' . $html . '<br />';
425
- echo '<br />Query String : ' . htmlentities ($_SERVER['QUERY_STRING']);
426
- echo '<br />TimThumb version : ' . VERSION . '</pre>';
427
- }
428
- protected function serveInternalImage(){
429
- $this->debug(3, "Local image path is $this->localImage");
430
- if(! $this->localImage){
431
- $this->sanityFail("localImage not set after verifying it earlier in the code.");
432
- return false;
433
- }
434
- $fileSize = filesize($this->localImage);
435
- if($fileSize > MAX_FILE_SIZE){
436
- $this->error("The file you specified is greater than the maximum allowed file size.");
437
- return false;
438
- }
439
- if($fileSize <= 0){
440
- $this->error("The file you specified is <= 0 bytes.");
441
- return false;
442
- }
443
- $this->debug(3, "Calling processImageAndWriteToCache() for local image.");
444
- if($this->processImageAndWriteToCache($this->localImage)){
445
- $this->serveCacheFile();
446
- return true;
447
- } else {
448
- return false;
449
- }
450
- }
451
- protected function cleanCache(){
452
- if (FILE_CACHE_TIME_BETWEEN_CLEANS < 0) {
453
- return;
454
- }
455
- $this->debug(3, "cleanCache() called");
456
- $lastCleanFile = $this->cacheDirectory . '/timthumb_cacheLastCleanTime.touch';
457
-
458
- //If this is a new timthumb installation we need to create the file
459
- if(! is_file($lastCleanFile)){
460
- $this->debug(1, "File tracking last clean doesn't exist. Creating $lastCleanFile");
461
- if (!touch($lastCleanFile)) {
462
- $this->error("Could not create cache clean timestamp file.");
463
- }
464
- return;
465
- }
466
- if(@filemtime($lastCleanFile) < (time() - FILE_CACHE_TIME_BETWEEN_CLEANS) ){ //Cache was last cleaned more than 1 day ago
467
- $this->debug(1, "Cache was last cleaned more than " . FILE_CACHE_TIME_BETWEEN_CLEANS . " seconds ago. Cleaning now.");
468
- // Very slight race condition here, but worst case we'll have 2 or 3 servers cleaning the cache simultaneously once a day.
469
- if (!touch($lastCleanFile)) {
470
- $this->error("Could not create cache clean timestamp file.");
471
- }
472
- $files = glob($this->cacheDirectory . '/*' . FILE_CACHE_SUFFIX);
473
- if ($files) {
474
- $timeAgo = time() - FILE_CACHE_MAX_FILE_AGE;
475
- foreach($files as $file){
476
- if(@filemtime($file) < $timeAgo){
477
- $this->debug(3, "Deleting cache file $file older than max age: " . FILE_CACHE_MAX_FILE_AGE . " seconds");
478
- @unlink($file);
479
- }
480
- }
481
- }
482
- return true;
483
- } else {
484
- $this->debug(3, "Cache was cleaned less than " . FILE_CACHE_TIME_BETWEEN_CLEANS . " seconds ago so no cleaning needed.");
485
- }
486
- return false;
487
- }
488
- protected function processImageAndWriteToCache($localImage){
489
- $sData = getimagesize($localImage);
490
- $origType = $sData[2];
491
- $mimeType = $sData['mime'];
492
-
493
- $this->debug(3, "Mime type of image is $mimeType");
494
- if(! preg_match('/^image\/(?:gif|jpg|jpeg|png)$/i', $mimeType)){
495
- return $this->error("The image being resized is not a valid gif, jpg or png.");
496
- }
497
-
498
- if (!function_exists ('imagecreatetruecolor')) {
499
- return $this->error('GD Library Error: imagecreatetruecolor does not exist - please contact your webhost and ask them to install the GD library');
500
- }
501
-
502
- if (function_exists ('imagefilter') && defined ('IMG_FILTER_NEGATE')) {
503
- $imageFilters = array (
504
- 1 => array (IMG_FILTER_NEGATE, 0),
505
- 2 => array (IMG_FILTER_GRAYSCALE, 0),
506
- 3 => array (IMG_FILTER_BRIGHTNESS, 1),
507
- 4 => array (IMG_FILTER_CONTRAST, 1),
508
- 5 => array (IMG_FILTER_COLORIZE, 4),
509
- 6 => array (IMG_FILTER_EDGEDETECT, 0),
510
- 7 => array (IMG_FILTER_EMBOSS, 0),
511
- 8 => array (IMG_FILTER_GAUSSIAN_BLUR, 0),
512
- 9 => array (IMG_FILTER_SELECTIVE_BLUR, 0),
513
- 10 => array (IMG_FILTER_MEAN_REMOVAL, 0),
514
- 11 => array (IMG_FILTER_SMOOTH, 0),
515
- );
516
- }
517
-
518
- // get standard input properties
519
- $new_width = (int) abs ($this->param('w', 0));
520
- $new_height = (int) abs ($this->param('h', 0));
521
- $zoom_crop = (int) $this->param('zc', DEFAULT_ZC);
522
- $quality = (int) abs ($this->param('q', DEFAULT_Q));
523
- $align = $this->cropTop ? 't' : $this->param('a', 'c');
524
- $filters = $this->param('f', DEFAULT_F);
525
- $sharpen = (bool) $this->param('s', DEFAULT_S);
526
- $canvas_color = $this->param('cc', DEFAULT_CC);
527
- $canvas_trans = (bool) $this->param('ct', '1');
528
-
529
- // set default width and height if neither are set already
530
- if ($new_width == 0 && $new_height == 0) {
531
- $new_width = 100;
532
- $new_height = 100;
533
- }
534
-
535
- // ensure size limits can not be abused
536
- $new_width = min ($new_width, MAX_WIDTH);
537
- $new_height = min ($new_height, MAX_HEIGHT);
538
-
539
- // set memory limit to be able to have enough space to resize larger images
540
- $this->setMemoryLimit();
541
-
542
- // open the existing image
543
- $image = $this->openImage ($mimeType, $localImage);
544
- if ($image === false) {
545
- return $this->error('Unable to open image.');
546
- }
547
-
548
- // Get original width and height
549
- $width = imagesx ($image);
550
- $height = imagesy ($image);
551
- $origin_x = 0;
552
- $origin_y = 0;
553
-
554
- // generate new w/h if not provided
555
- if ($new_width && !$new_height) {
556
- $new_height = floor ($height * ($new_width / $width));
557
- } else if ($new_height && !$new_width) {
558
- $new_width = floor ($width * ($new_height / $height));
559
- }
560
-
561
- // scale down and add borders
562
- if ($zoom_crop == 3) {
563
-
564
- $final_height = $height * ($new_width / $width);
565
-
566
- if ($final_height > $new_height) {
567
- $new_width = $width * ($new_height / $height);
568
- } else {
569
- $new_height = $final_height;
570
- }
571
-
572
- }
573
-
574
- // create a new true color image
575
- $canvas = imagecreatetruecolor ($new_width, $new_height);
576
- imagealphablending ($canvas, false);
577
-
578
- if (strlen($canvas_color) == 3) { //if is 3-char notation, edit string into 6-char notation
579
- $canvas_color = str_repeat(substr($canvas_color, 0, 1), 2) . str_repeat(substr($canvas_color, 1, 1), 2) . str_repeat(substr($canvas_color, 2, 1), 2);
580
- } else if (strlen($canvas_color) != 6) {
581
- $canvas_color = DEFAULT_CC; // on error return default canvas color
582
- }
583
-
584
- $canvas_color_R = hexdec (substr ($canvas_color, 0, 2));
585
- $canvas_color_G = hexdec (substr ($canvas_color, 2, 2));
586
- $canvas_color_B = hexdec (substr ($canvas_color, 4, 2));
587
-
588
- // Create a new transparent color for image
589
- // If is a png and PNG_IS_TRANSPARENT is false then remove the alpha transparency
590
- // (and if is set a canvas color show it in the background)
591
- if(preg_match('/^image\/png$/i', $mimeType) && !PNG_IS_TRANSPARENT && $canvas_trans){
592
- $color = imagecolorallocatealpha ($canvas, $canvas_color_R, $canvas_color_G, $canvas_color_B, 127);
593
- }else{
594
- $color = imagecolorallocatealpha ($canvas, $canvas_color_R, $canvas_color_G, $canvas_color_B, 0);
595
- }
596
-
597
-
598
- // Completely fill the background of the new image with allocated color.
599
- imagefill ($canvas, 0, 0, $color);
600
-
601
- // scale down and add borders
602
- if ($zoom_crop == 2) {
603
-
604
- $final_height = $height * ($new_width / $width);
605
-
606
- if ($final_height > $new_height) {
607
-
608
- $origin_x = $new_width / 2;
609
- $new_width = $width * ($new_height / $height);
610
- $origin_x = round ($origin_x - ($new_width / 2));
611
-
612
- } else {
613
-
614
- $origin_y = $new_height / 2;
615
- $new_height = $final_height;
616
- $origin_y = round ($origin_y - ($new_height / 2));
617
-
618
- }
619
-
620
- }
621
-
622
- // Restore transparency blending
623
- imagesavealpha ($canvas, true);
624
-
625
- if ($zoom_crop > 0) {
626
-
627
- $src_x = $src_y = 0;
628
- $src_w = $width;
629
- $src_h = $height;
630
-
631
- $cmp_x = $width / $new_width;
632
- $cmp_y = $height / $new_height;
633
-
634
- // calculate x or y coordinate and width or height of source
635
- if ($cmp_x > $cmp_y) {
636
-
637
- $src_w = round ($width / $cmp_x * $cmp_y);
638
- $src_x = round (($width - ($width / $cmp_x * $cmp_y)) / 2);
639
-
640
- } else if ($cmp_y > $cmp_x) {
641
-
642
- $src_h = round ($height / $cmp_y * $cmp_x);
643
- $src_y = round (($height - ($height / $cmp_y * $cmp_x)) / 2);
644
-
645
- }
646
-
647
- // positional cropping!
648
- if ($align) {
649
- if (strpos ($align, 't') !== false) {
650
- $src_y = 0;
651
- }
652
- if (strpos ($align, 'b') !== false) {
653
- $src_y = $height - $src_h;
654
- }
655
- if (strpos ($align, 'l') !== false) {
656
- $src_x = 0;
657
- }
658
- if (strpos ($align, 'r') !== false) {
659
- $src_x = $width - $src_w;
660
- }
661
- }
662
-
663
- imagecopyresampled ($canvas, $image, $origin_x, $origin_y, $src_x, $src_y, $new_width, $new_height, $src_w, $src_h);
664
-
665
- } else {
666
-
667
- // copy and resize part of an image with resampling
668
- imagecopyresampled ($canvas, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
669
-
670
- }
671
-
672
- if ($filters != '' && function_exists ('imagefilter') && defined ('IMG_FILTER_NEGATE')) {
673
- // apply filters to image
674
- $filterList = explode ('|', $filters);
675
- foreach ($filterList as $fl) {
676
-
677
- $filterSettings = explode (',', $fl);
678
- if (isset ($imageFilters[$filterSettings[0]])) {
679
-
680
- for ($i = 0; $i < 4; $i ++) {
681
- if (!isset ($filterSettings[$i])) {
682
- $filterSettings[$i] = null;
683
- } else {
684
- $filterSettings[$i] = (int) $filterSettings[$i];
685
- }
686
- }
687
-
688
- switch ($imageFilters[$filterSettings[0]][1]) {
689
-
690
- case 1:
691
-
692
- imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1]);
693
- break;
694
-
695
- case 2:
696
-
697
- imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2]);
698
- break;
699
-
700
- case 3:
701
-
702
- imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2], $filterSettings[3]);
703
- break;
704
-
705
- case 4:
706
-
707
- imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2], $filterSettings[3], $filterSettings[4]);
708
- break;
709
-
710
- default:
711
-
712
- imagefilter ($canvas, $imageFilters[$filterSettings[0]][0]);
713
- break;
714
-
715
- }
716
- }
717
- }
718
- }
719
-
720
- // sharpen image
721
- if ($sharpen && function_exists ('imageconvolution')) {
722
-
723
- $sharpenMatrix = array (
724
- array (-1,-1,-1),
725
- array (-1,16,-1),
726
- array (-1,-1,-1),
727
- );
728
-
729
- $divisor = 8;
730
- $offset = 0;
731
-
732
- imageconvolution ($canvas, $sharpenMatrix, $divisor, $offset);
733
-
734
- }
735
- //Straight from Wordpress core code. Reduces filesize by up to 70% for PNG's
736
- if ( (IMAGETYPE_PNG == $origType || IMAGETYPE_GIF == $origType) && function_exists('imageistruecolor') && !imageistruecolor( $image ) && imagecolortransparent( $image ) > 0 ){
737
- imagetruecolortopalette( $canvas, false, imagecolorstotal( $image ) );
738
- }
739
-
740
- $imgType = "";
741
- $tempfile = tempnam($this->cacheDirectory, 'timthumb_tmpimg_');
742
- if(preg_match('/^image\/(?:jpg|jpeg)$/i', $mimeType)){
743
- $imgType = 'jpg';
744
- imagejpeg($canvas, $tempfile, $quality);
745
- } else if(preg_match('/^image\/png$/i', $mimeType)){
746
- $imgType = 'png';
747
- imagepng($canvas, $tempfile, floor($quality * 0.09));
748
- } else if(preg_match('/^image\/gif$/i', $mimeType)){
749
- $imgType = 'gif';
750
- imagegif($canvas, $tempfile);
751
- } else {
752
- return $this->sanityFail("Could not match mime type after verifying it previously.");
753
- }
754
-
755
- if($imgType == 'png' && OPTIPNG_ENABLED && OPTIPNG_PATH && @is_file(OPTIPNG_PATH)){
756
- $exec = OPTIPNG_PATH;
757
- $this->debug(3, "optipng'ing $tempfile");
758
- $presize = filesize($tempfile);
759
- $out = `$exec -o1 $tempfile`; //you can use up to -o7 but it really slows things down
760
- clearstatcache();
761
- $aftersize = filesize($tempfile);
762
- $sizeDrop = $presize - $aftersize;
763
- if($sizeDrop > 0){
764
- $this->debug(1, "optipng reduced size by $sizeDrop");
765
- } else if($sizeDrop < 0){
766
- $this->debug(1, "optipng increased size! Difference was: $sizeDrop");
767
- } else {
768
- $this->debug(1, "optipng did not change image size.");
769
- }
770
- } else if($imgType == 'png' && PNGCRUSH_ENABLED && PNGCRUSH_PATH && @is_file(PNGCRUSH_PATH)){
771
- $exec = PNGCRUSH_PATH;
772
- $tempfile2 = tempnam($this->cacheDirectory, 'timthumb_tmpimg_');
773
- $this->debug(3, "pngcrush'ing $tempfile to $tempfile2");
774
- $out = `$exec $tempfile $tempfile2`;
775
- $todel = "";
776
- if(is_file($tempfile2)){
777
- $sizeDrop = filesize($tempfile) - filesize($tempfile2);
778
- if($sizeDrop > 0){
779
- $this->debug(1, "pngcrush was succesful and gave a $sizeDrop byte size reduction");
780
- $todel = $tempfile;
781
- $tempfile = $tempfile2;
782
- } else {
783
- $this->debug(1, "pngcrush did not reduce file size. Difference was $sizeDrop bytes.");
784
- $todel = $tempfile2;
785
- }
786
- } else {
787
- $this->debug(3, "pngcrush failed with output: $out");
788
- $todel = $tempfile2;
789
- }
790
- @unlink($todel);
791
- }
792
-
793
- $this->debug(3, "Rewriting image with security header.");
794
- $tempfile4 = tempnam($this->cacheDirectory, 'timthumb_tmpimg_');
795
- $context = stream_context_create ();
796
- $fp = fopen($tempfile,'r',0,$context);
797
- file_put_contents($tempfile4, $this->filePrependSecurityBlock . $imgType . ' ?' . '>'); //6 extra bytes, first 3 being image type
798
- file_put_contents($tempfile4, $fp, FILE_APPEND);
799
- fclose($fp);
800
- @unlink($tempfile);
801
- $this->debug(3, "Locking and replacing cache file.");
802
- $lockFile = $this->cachefile . '.lock';
803
- $fh = fopen($lockFile, 'w');
804
- if(! $fh){
805
- return $this->error("Could not open the lockfile for writing an image.");
806
- }
807
- if(flock($fh, LOCK_EX)){
808
- @unlink($this->cachefile); //rename generally overwrites, but doing this in case of platform specific quirks. File might not exist yet.
809
- rename($tempfile4, $this->cachefile);
810
- flock($fh, LOCK_UN);
811
- fclose($fh);
812
- @unlink($lockFile);
813
- } else {
814
- fclose($fh);
815
- @unlink($lockFile);
816
- @unlink($tempfile4);
817
- return $this->error("Could not get a lock for writing.");
818
- }
819
- $this->debug(3, "Done image replace with security header. Cleaning up and running cleanCache()");
820
- imagedestroy($canvas);
821
- imagedestroy($image);
822
- return true;
823
- }
824
- protected function calcDocRoot(){
825
- $docRoot = @$_SERVER['DOCUMENT_ROOT'];
826
- if (defined('LOCAL_FILE_BASE_DIRECTORY')) {
827
- $docRoot = LOCAL_FILE_BASE_DIRECTORY;
828
- }
829
- if(!isset($docRoot)){
830
- $this->debug(3, "DOCUMENT_ROOT is not set. This is probably windows. Starting search 1.");
831
- if(isset($_SERVER['SCRIPT_FILENAME'])){
832
- $docRoot = str_replace( '\\', '/', substr($_SERVER['SCRIPT_FILENAME'], 0, 0-strlen($_SERVER['PHP_SELF'])));
833
- $this->debug(3, "Generated docRoot using SCRIPT_FILENAME and PHP_SELF as: $docRoot");
834
- }
835
- }
836
- if(!isset($docRoot)){
837
- $this->debug(3, "DOCUMENT_ROOT still is not set. Starting search 2.");
838
- if(isset($_SERVER['PATH_TRANSLATED'])){
839
- $docRoot = str_replace( '\\', '/', substr(str_replace('\\\\', '\\', $_SERVER['PATH_TRANSLATED']), 0, 0-strlen($_SERVER['PHP_SELF'])));
840
- $this->debug(3, "Generated docRoot using PATH_TRANSLATED and PHP_SELF as: $docRoot");
841
- }
842
- }
843
- if($docRoot && $_SERVER['DOCUMENT_ROOT'] != '/'){ $docRoot = preg_replace('/\/$/', '', $docRoot); }
844
- $this->debug(3, "Doc root is: " . $docRoot);
845
- $this->docRoot = $docRoot;
846
-
847
- }
848
- protected function getLocalImagePath($src){
849
- $src = ltrim($src, '/'); //strip off the leading '/'
850
- if(! $this->docRoot){
851
- $this->debug(3, "We have no document root set, so as a last resort, lets check if the image is in the current dir and serve that.");
852
- //We don't support serving images outside the current dir if we don't have a doc root for security reasons.
853
- $file = preg_replace('/^.*?([^\/\\\\]+)$/', '$1', $src); //strip off any path info and just leave the filename.
854
- if(is_file($file)){
855
- return $this->realpath($file);
856
- }
857
- return $this->error("Could not find your website document root and the file specified doesn't exist in timthumbs directory. We don't support serving files outside timthumb's directory without a document root for security reasons.");
858
- } //Do not go past this point without docRoot set
859
-
860
- //Try src under docRoot
861
- if(file_exists ($this->docRoot . '/' . $src)) {
862
- $this->debug(3, "Found file as " . $this->docRoot . '/' . $src);
863
- $real = $this->realpath($this->docRoot . '/' . $src);
864
- if(stripos($real, $this->docRoot) === 0){
865
- return $real;
866
- } else {
867
- $this->debug(1, "Security block: The file specified occurs outside the document root.");
868
- //allow search to continue
869
- }
870
- }
871
- //Check absolute paths and then verify the real path is under doc root
872
- $absolute = $this->realpath('/' . $src);
873
- if($absolute && file_exists($absolute)){ //realpath does file_exists check, so can probably skip the exists check here
874
- $this->debug(3, "Found absolute path: $absolute");
875
- if(! $this->docRoot){ $this->sanityFail("docRoot not set when checking absolute path."); }
876
- if(stripos($absolute, $this->docRoot) === 0){
877
- return $absolute;
878
- } else {
879
- $this->debug(1, "Security block: The file specified occurs outside the document root.");
880
- //and continue search
881
- }
882
- }
883
-
884
- $base = $this->docRoot;
885
-
886
- // account for Windows directory structure
887
- if (strstr($_SERVER['SCRIPT_FILENAME'],':')) {
888
- $sub_directories = explode('\\', str_replace($this->docRoot, '', $_SERVER['SCRIPT_FILENAME']));
889
- } else {
890
- $sub_directories = explode('/', str_replace($this->docRoot, '', $_SERVER['SCRIPT_FILENAME']));
891
- }
892
-
893
- foreach ($sub_directories as $sub){
894
- $base .= $sub . '/';
895
- $this->debug(3, "Trying file as: " . $base . $src);
896
- if(file_exists($base . $src)){
897
- $this->debug(3, "Found file as: " . $base . $src);
898
- $real = $this->realpath($base . $src);
899
- if(stripos($real, $this->realpath($this->docRoot)) === 0){
900
- return $real;
901
- } else {
902
- $this->debug(1, "Security block: The file specified occurs outside the document root.");
903
- //And continue search
904
- }
905
- }
906
- }
907
- return false;
908
- }
909
- protected function realpath($path){
910
- //try to remove any relative paths
911
- $remove_relatives = '/\w+\/\.\.\//';
912
- while(preg_match($remove_relatives,$path)){
913
- $path = preg_replace($remove_relatives, '', $path);
914
- }
915
- //if any remain use PHP realpath to strip them out, otherwise return $path
916
- //if using realpath, any symlinks will also be resolved
917
- return preg_match('#^\.\./|/\.\./#', $path) ? realpath($path) : $path;
918
- }
919
- protected function toDelete($name){
920
- $this->debug(3, "Scheduling file $name to delete on destruct.");
921
- $this->toDeletes[] = $name;
922
- }
923
- protected function serveWebshot(){
924
- $this->debug(3, "Starting serveWebshot");
925
- $instr = "Please follow the instructions at http://code.google.com/p/timthumb/ to set your server up for taking website screenshots.";
926
- if(! is_file(WEBSHOT_CUTYCAPT)){
927
- return $this->error("CutyCapt is not installed. $instr");
928
- }
929
- if(! is_file(WEBSHOT_XVFB)){
930
- return $this->Error("Xvfb is not installed. $instr");
931
- }
932
- $cuty = WEBSHOT_CUTYCAPT;
933
- $xv = WEBSHOT_XVFB;
934
- $screenX = WEBSHOT_SCREEN_X;
935
- $screenY = WEBSHOT_SCREEN_Y;
936
- $colDepth = WEBSHOT_COLOR_DEPTH;
937
- $format = WEBSHOT_IMAGE_FORMAT;
938
- $timeout = WEBSHOT_TIMEOUT * 1000;
939
- $ua = WEBSHOT_USER_AGENT;
940
- $jsOn = WEBSHOT_JAVASCRIPT_ON ? 'on' : 'off';
941
- $javaOn = WEBSHOT_JAVA_ON ? 'on' : 'off';
942
- $pluginsOn = WEBSHOT_PLUGINS_ON ? 'on' : 'off';
943
- $proxy = WEBSHOT_PROXY ? ' --http-proxy=' . WEBSHOT_PROXY : '';
944
- $tempfile = tempnam($this->cacheDirectory, 'timthumb_webshot');
945
- $url = $this->src;
946
- if(! preg_match('/^https?:\/\/[a-zA-Z0-9\.\-]+/i', $url)){
947
- return $this->error("Invalid URL supplied.");
948
- }
949
- $url = preg_replace('/[^A-Za-z0-9\-\.\_\~:\/\?\#\[\]\@\!\$\&\'\(\)\*\+\,\;\=]+/', '', $url); //RFC 3986
950
- //Very important we don't allow injection of shell commands here. URL is between quotes and we are only allowing through chars allowed by a the RFC
951
- // which AFAIKT can't be used for shell injection.
952
- if(WEBSHOT_XVFB_RUNNING){
953
- putenv('DISPLAY=:100.0');
954
- $command = "$cuty $proxy --max-wait=$timeout --user-agent=\"$ua\" --javascript=$jsOn --java=$javaOn --plugins=$pluginsOn --js-can-open-windows=off --url=\"$url\" --out-format=$format --out=$tempfile";
955
- } else {
956
- $command = "$xv --server-args=\"-screen 0, {$screenX}x{$screenY}x{$colDepth}\" $cuty $proxy --max-wait=$timeout --user-agent=\"$ua\" --javascript=$jsOn --java=$javaOn --plugins=$pluginsOn --js-can-open-windows=off --url=\"$url\" --out-format=$format --out=$tempfile";
957
- }
958
- $this->debug(3, "Executing command: $command");
959
- $out = `$command`;
960
- $this->debug(3, "Received output: $out");
961
- if(! is_file($tempfile)){
962
- $this->set404();
963
- return $this->error("The command to create a thumbnail failed.");
964
- }
965
- $this->cropTop = true;
966
- if($this->processImageAndWriteToCache($tempfile)){
967
- $this->debug(3, "Image processed succesfully. Serving from cache");
968
- return $this->serveCacheFile();
969
- } else {
970
- return false;
971
- }
972
- }
973
- protected function serveExternalImage(){
974
- if(! preg_match('/^https?:\/\/[a-zA-Z0-9\-\.]+/i', $this->src)){
975
- $this->error("Invalid URL supplied.");
976
- return false;
977
- }
978
- $tempfile = tempnam($this->cacheDirectory, 'timthumb');
979
- $this->debug(3, "Fetching external image into temporary file $tempfile");
980
- $this->toDelete($tempfile);
981
- #fetch file here
982
- if(! $this->getURL($this->src, $tempfile)){
983
- @unlink($this->cachefile);
984
- touch($this->cachefile);
985
- $this->debug(3, "Error fetching URL: " . $this->lastURLError);
986
- $this->error("Error reading the URL you specified from remote host." . $this->lastURLError);
987
- return false;
988
- }
989
-
990
- $mimeType = $this->getMimeType($tempfile);
991
- if(! preg_match("/^image\/(?:jpg|jpeg|gif|png)$/i", $mimeType)){
992
- $this->debug(3, "Remote file has invalid mime type: $mimeType");
993
- @unlink($this->cachefile);
994
- touch($this->cachefile);
995
- $this->error("The remote file is not a valid image.");
996
- return false;
997
- }
998
- if($this->processImageAndWriteToCache($tempfile)){
999
- $this->debug(3, "Image processed succesfully. Serving from cache");
1000
- return $this->serveCacheFile();
1001
- } else {
1002
- return false;
1003
- }
1004
- }
1005
- public static function curlWrite($h, $d){
1006
- fwrite(self::$curlFH, $d);
1007
- self::$curlDataWritten += strlen($d);
1008
- if(self::$curlDataWritten > MAX_FILE_SIZE){
1009
- return 0;
1010
- } else {
1011
- return strlen($d);
1012
- }
1013
- }
1014
- protected function serveCacheFile(){
1015
- $this->debug(3, "Serving {$this->cachefile}");
1016
- if(! is_file($this->cachefile)){
1017
- $this->error("serveCacheFile called in timthumb but we couldn't find the cached file.");
1018
- return false;
1019
- }
1020
- $fp = fopen($this->cachefile, 'rb');
1021
- if(! $fp){ return $this->error("Could not open cachefile."); }
1022
- fseek($fp, strlen($this->filePrependSecurityBlock), SEEK_SET);
1023
- $imgType = fread($fp, 3);
1024
- fseek($fp, 3, SEEK_CUR);
1025
- if(ftell($fp) != strlen($this->filePrependSecurityBlock) + 6){
1026
- @unlink($this->cachefile);
1027
- return $this->error("The cached image file seems to be corrupt.");
1028
- }
1029
- $imageDataSize = filesize($this->cachefile) - (strlen($this->filePrependSecurityBlock) + 6);
1030
- $this->sendImageHeaders($imgType, $imageDataSize);
1031
- $bytesSent = @fpassthru($fp);
1032
- fclose($fp);
1033
- if($bytesSent > 0){
1034
- return true;
1035
- }
1036
- $content = file_get_contents ($this->cachefile);
1037
- if ($content != FALSE) {
1038
- $content = substr($content, strlen($this->filePrependSecurityBlock) + 6);
1039
- echo $content;
1040
- $this->debug(3, "Served using file_get_contents and echo");
1041
- return true;
1042
- } else {
1043
- $this->error("Cache file could not be loaded.");
1044
- return false;
1045
- }
1046
- }
1047
- protected function sendImageHeaders($mimeType, $dataSize){
1048
- if(! preg_match('/^image\//i', $mimeType)){
1049
- $mimeType = 'image/' . $mimeType;
1050
- }
1051
- if(strtolower($mimeType) == 'image/jpg'){
1052
- $mimeType = 'image/jpeg';
1053
- }
1054
- $gmdate_expires = gmdate ('D, d M Y H:i:s', strtotime ('now +10 days')) . ' GMT';
1055
- $gmdate_modified = gmdate ('D, d M Y H:i:s') . ' GMT';
1056
- // send content headers then display image
1057
- header ('Content-Type: ' . $mimeType);
1058
- header ('Accept-Ranges: none'); //Changed this because we don't accept range requests
1059
- header ('Last-Modified: ' . $gmdate_modified);
1060
- header ('Content-Length: ' . $dataSize);
1061
- if(BROWSER_CACHE_DISABLE){
1062
- $this->debug(3, "Browser cache is disabled so setting non-caching headers.");
1063
- header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
1064
- header("Pragma: no-cache");
1065
- header('Expires: ' . gmdate ('D, d M Y H:i:s', time()));
1066
- } else {
1067
- $this->debug(3, "Browser caching is enabled");
1068
- header('Cache-Control: max-age=' . BROWSER_CACHE_MAX_AGE . ', must-revalidate');
1069
- header('Expires: ' . $gmdate_expires);
1070
- }
1071
- return true;
1072
- }
1073
- protected function securityChecks(){
1074
- }
1075
- protected function param($property, $default = ''){
1076
- if (isset ($_GET[$property])) {
1077
- return $_GET[$property];
1078
- } else {
1079
- return $default;
1080
- }
1081
- }
1082
- protected function openImage($mimeType, $src){
1083
- switch ($mimeType) {
1084
- case 'image/jpeg':
1085
- $image = imagecreatefromjpeg ($src);
1086
- break;
1087
-
1088
- case 'image/png':
1089
- $image = imagecreatefrompng ($src);
1090
- break;
1091
-
1092
- case 'image/gif':
1093
- $image = imagecreatefromgif ($src);
1094
- break;
1095
-
1096
- default:
1097
- $this->error("Unrecognised mimeType");
1098
- }
1099
-
1100
- return $image;
1101
- }
1102
- protected function getIP(){
1103
- $rem = @$_SERVER["REMOTE_ADDR"];
1104
- $ff = @$_SERVER["HTTP_X_FORWARDED_FOR"];
1105
- $ci = @$_SERVER["HTTP_CLIENT_IP"];
1106
- if(preg_match('/^(?:192\.168|172\.16|10\.|127\.)/', $rem)){
1107
- if($ff){ return $ff; }
1108
- if($ci){ return $ci; }
1109
- return $rem;
1110
- } else {
1111
- if($rem){ return $rem; }
1112
- if($ff){ return $ff; }
1113
- if($ci){ return $ci; }
1114
- return "UNKNOWN";
1115
- }
1116
- }
1117
- protected function debug($level, $msg){
1118
- if(DEBUG_ON && $level <= DEBUG_LEVEL){
1119
- $execTime = sprintf('%.6f', microtime(true) - $this->startTime);
1120
- $tick = sprintf('%.6f', 0);
1121
- if($this->lastBenchTime > 0){
1122
- $tick = sprintf('%.6f', microtime(true) - $this->lastBenchTime);
1123
- }
1124
- $this->lastBenchTime = microtime(true);
1125
- error_log("TimThumb Debug line " . __LINE__ . " [$execTime : $tick]: $msg");
1126
- }
1127
- }
1128
- protected function sanityFail($msg){
1129
- return $this->error("There is a problem in the timthumb code. Message: Please report this error at <a href='http://code.google.com/p/timthumb/issues/list'>timthumb's bug tracking page</a>: $msg");
1130
- }
1131
- protected function getMimeType($file){
1132
- $info = getimagesize($file);
1133
- if(is_array($info) && $info['mime']){
1134
- return $info['mime'];
1135
- }
1136
- return '';
1137
- }
1138
- protected function setMemoryLimit(){
1139
- $inimem = ini_get('memory_limit');
1140
- $inibytes = timthumb::returnBytes($inimem);
1141
- $ourbytes = timthumb::returnBytes(MEMORY_LIMIT);
1142
- if($inibytes < $ourbytes){
1143
- ini_set ('memory_limit', MEMORY_LIMIT);
1144
- $this->debug(3, "Increased memory from $inimem to " . MEMORY_LIMIT);
1145
- } else {
1146
- $this->debug(3, "Not adjusting memory size because the current setting is " . $inimem . " and our size of " . MEMORY_LIMIT . " is smaller.");
1147
- }
1148
- }
1149
- protected static function returnBytes($size_str){
1150
- switch (substr ($size_str, -1))
1151
- {
1152
- case 'M': case 'm': return (int)$size_str * 1048576;
1153
- case 'K': case 'k': return (int)$size_str * 1024;
1154
- case 'G': case 'g': return (int)$size_str * 1073741824;
1155
- default: return $size_str;
1156
- }
1157
- }
1158
- protected function getURL($url, $tempfile){
1159
- $this->lastURLError = false;
1160
- $url = preg_replace('/ /', '%20', $url);
1161
- if(function_exists('curl_init')){
1162
- $this->debug(3, "Curl is installed so using it to fetch URL.");
1163
- self::$curlFH = fopen($tempfile, 'w');
1164
- if(! self::$curlFH){
1165
- $this->error("Could not open $tempfile for writing.");
1166
- return false;
1167
- }
1168
- self::$curlDataWritten = 0;
1169
- $this->debug(3, "Fetching url with curl: $url");
1170
- $curl = curl_init($url);
1171
- curl_setopt ($curl, CURLOPT_TIMEOUT, CURL_TIMEOUT);
1172
- curl_setopt ($curl, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.122 Safari/534.30");
1173
- curl_setopt ($curl, CURLOPT_RETURNTRANSFER, TRUE);
1174
- curl_setopt ($curl, CURLOPT_HEADER, 0);
1175
- curl_setopt ($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
1176
- curl_setopt ($curl, CURLOPT_WRITEFUNCTION, 'timthumb::curlWrite');
1177
- @curl_setopt ($curl, CURLOPT_FOLLOWLOCATION, true);
1178
- @curl_setopt ($curl, CURLOPT_MAXREDIRS, 10);
1179
-
1180
- $curlResult = curl_exec($curl);
1181
- fclose(self::$curlFH);
1182
- $httpStatus = curl_getinfo($curl, CURLINFO_HTTP_CODE);
1183
- if($httpStatus == 404){
1184
- $this->set404();
1185
- }
1186
- if($curlResult){
1187
- curl_close($curl);
1188
- return true;
1189
- } else {
1190
- $this->lastURLError = curl_error($curl);
1191
- curl_close($curl);
1192
- return false;
1193
- }
1194
- } else {
1195
- $img = @file_get_contents ($url);
1196
- if($img === false){
1197
- $err = error_get_last();
1198
- if(is_array($err) && $err['message']){
1199
- $this->lastURLError = $err['message'];
1200
- } else {
1201
- $this->lastURLError = $err;
1202
- }
1203
- if(preg_match('/404/', $this->lastURLError)){
1204
- $this->set404();
1205
- }
1206
-
1207
- return false;
1208
- }
1209
- if(! file_put_contents($tempfile, $img)){
1210
- $this->error("Could not write to $tempfile.");
1211
- return false;
1212
- }
1213
- return true;
1214
- }
1215
-
1216
- }
1217
- protected function serveImg($file){
1218
- $s = getimagesize($file);
1219
- if(! ($s && $s['mime'])){
1220
- return false;
1221
- }
1222
- header ('Content-Type: ' . $s['mime']);
1223
- header ('Content-Length: ' . filesize($file) );
1224
- header ('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
1225
- header ("Pragma: no-cache");
1226
- $bytes = @readfile($file);
1227
- if($bytes > 0){
1228
- return true;
1229
- }
1230
- $content = @file_get_contents ($file);
1231
- if ($content != FALSE){
1232
- echo $content;
1233
- return true;
1234
- }
1235
- return false;
1236
-
1237
- }
1238
- protected function set404(){
1239
- $this->is404 = true;
1240
- }
1241
- protected function is404(){
1242
- return $this->is404;
1243
- }
1244
- }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
trunk/class-cg-tvs-filescanner.php DELETED
@@ -1,99 +0,0 @@
1
- <?php
2
- if ( ! defined('ABSPATH') ) {
3
- die('Please do not load this file directly.');
4
- }
5
-
6
-
7
- class CG_FileScanner {
8
-
9
- public $base_dir;
10
- public $errors;
11
- public $inventory;
12
- public $instances;
13
- public $suspicious_files;
14
-
15
- function __construct( $base_dir ) {
16
- if ( is_file( $base_dir ) || is_dir( $base_dir ) ) {
17
- $this->base_dir = $base_dir;
18
- } else {
19
- die();
20
- }
21
- }
22
-
23
- function generate_inventory() {
24
- $this->inventory = $this->get_dir_contents( $this->base_dir, true );
25
- }
26
-
27
- function get_dir_contents( $path ) {
28
- $inventory = array();
29
- if ( ! $dir_handle = @opendir( $path ) ) {
30
- $this->errors[] = "Couldn't open $path";
31
- return false;
32
- }
33
- while ( $file = readdir( $dir_handle ) ) {
34
- if ( $file == '.' || $file == '..' ) continue;
35
- $fullpath = $path . DIRECTORY_SEPARATOR . $file;
36
- if ( is_dir( $fullpath ) ) {
37
- $inventory = @array_merge( $inventory, $this->get_dir_contents( $fullpath ) );
38
- } else {
39
- $inventory[] = $fullpath;
40
- }
41
- }
42
- closedir( $dir_handle );
43
- return $inventory;
44
- }
45
-
46
-
47
- function scan_inventory_timthumb() {
48
- foreach( $this->inventory as $path ) {
49
- $path_parts = pathinfo( $path );
50
- // Don't scan this plugin's files
51
- if( preg_match( '~^' . preg_quote( dirname(__FILE__) ) . "~", $path ) ) {
52
- continue;
53
- }
54
- if( $path_parts['extension'] == 'php' ) {
55
- if( $file_handle = @fopen( $path, 'r' ) ) {
56
- $contents = @fread( $file_handle, filesize( $path ) );
57
- if ( preg_match( "~TimThumb script created by Tim McDaniels and Darren Hoyt|TimThumb script created by Ben Gillbanks\, originally created by Tim McDaniels and Darren Hoyt|TimThumb by Ben Gillbanks~", $contents ) ) {
58
- // We have a timthumb script. Now check to see what version it is.
59
- preg_match( "~define\s*\(\s*[\'|\"]VERSION[\'|\"],\s*[\'|\"]([^\'|\"]*)~", $contents, $matches );
60
- $instance['path'] = $path;
61
- if(!empty($matches[1])){
62
- $instance['version'] = $matches[1];
63
- }else{
64
- $instance['version'] = 0;
65
- }
66
- $this->instances[] = $instance;
67
- unset($instance);
68
- }
69
- }
70
- }
71
- }
72
- }
73
-
74
- function check_for_intrusion_files(){
75
- // This is far from foolproof. All we're going to do is
76
- // look at each copy of timthumb, and check for a cache folder in the same directory
77
- // then look for php files inside of that.
78
- // This could be improved to try to actually read the DIRECTORY_CACHE constant
79
- // from each timthumb file, assuming they haven't already been altered.
80
- // I don't know how common it is to actually alter this value.
81
- if(!empty($this->instances)){
82
- foreach($this->instances as $instance){
83
- if(is_dir(dirname($instance['path']).'/cache')){
84
- // We have a cache dir. Run through the cache files
85
- // to see if we have any php files.
86
- $cache_files = $this->get_dir_contents(dirname($instance['path']).'/cache');
87
- foreach($cache_files as $cache_file){
88
- $path_parts = pathinfo($cache_file);
89
- if($path_parts['extension'] == 'php' && $path_parts['basename'] != 'index.php'){
90
- $this->suspicious_files[] = $cache_file;
91
- }
92
- }
93
- }
94
- }
95
- }
96
- }
97
-
98
- }
99
- ?>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
trunk/class-cg-tvs-plugin.php DELETED
@@ -1,328 +0,0 @@
1
- <?php
2
- if ( ! defined('ABSPATH') ) {
3
- die('Please do not load this file directly.');
4
- }
5
-
6
- class CG_TVS_Plugin{
7
-
8
- var $script_latest_version;
9
- var $script_safe_version;
10
- var $last_version_check;
11
- var $scan_daily;
12
-
13
- var $last_scan;
14
- var $script_instances;
15
- var $suspicious_files;
16
-
17
- var $plugin_base;
18
-
19
- var $current_timthumb_src_version;
20
- var $on_admin_page = false;
21
-
22
- function init(){
23
- global $pagenow;
24
- if($pagenow == 'tools.php' && $_GET['page'] == 'cg-timthumb-scanner'){
25
- $this->on_admin_page = true;
26
- }
27
- $storage_array = get_option( 'cg_tvs_data' );
28
- if(is_array($storage_array)){
29
- $this->script_latest_version = $storage_array['script_latest_version'];
30
- $this->script_safe_version = $storage_array['script_safe_version'];
31
- $this->last_version_check = $storage_array['last_version_check'];
32
-
33
- $this->script_instances = $storage_array['script_instances'];
34
- $this->suspicious_files = $storage_array['suspicious_files'];
35
- $this->last_scan = $storage_array['last_scan'];
36
- $this->scan_daily = $storage_array['scan_daily'];
37
-
38
- $this->scan_summary = $storage_array['scan_summary'];
39
-
40
- }else{
41
- $this->script_latest_version = '2.8.5';
42
- $this->script_safe_version = '2.8.2';
43
-
44
- $this->last_version_check = 0;
45
-
46
- $this->script_instances = array();
47
- $this->suspicious_files = array();
48
- $this->last_scan = 0;
49
- $this->scan_daily = true;
50
- $this->scan_summary['Vulnerable'] = 0;
51
- $this->scan_summary['Outdated'] = 0;
52
- $this->scan_summary['Up to Date'] = 0;
53
-
54
- $this->save();
55
- }
56
- if($this->last_version_check < time()-86400){
57
- $this->get_fresh_data();
58
- $this->save();
59
- }
60
- $this->plugin_base_dir = trailingslashit(dirname(__FILE__));
61
-
62
- if( $this->scan_summary['Outdated'] > 0 && !$this->on_admin_page ){
63
- $this->show_message( $this->scan_summary['Outdated']." outdated Timthumb "._n('file', 'files', $this->scan_summary['Outdated'])." found. <a href=\"tools.php?page=cg-timthumb-scanner\">Fix "._n('it', 'them', $this->scan_summary['Outdated'])." here</a>.", $error = false );
64
- }
65
- if( $this->scan_summary['Vulnerable'] > 0 && !$this->on_admin_page ){
66
- $this->show_message( $this->scan_summary['Vulnerable']." vulnerable Timthumb "._n('file', 'files', $this->scan_summary['Vulnerable'])." found. <a href=\"tools.php?page=cg-timthumb-scanner\">Fix "._n('it', 'them', $this->scan_summary['Vulnerable'])." here</a>.", $error = true );
67
- }
68
- }
69
-
70
- function add_menus(){
71
- add_management_page( 'Timthumb Scanner', 'Timthumb Scanner', 'manage_options', 'cg-timthumb-scanner', array(&$this, 'admin_panel_controller' ) );
72
- }
73
-
74
-
75
- function activate(){
76
- $this->init();
77
- // Clear out older version data
78
- delete_option( 'cg_tvs_last_checked' );
79
- delete_option( 'cg_tvs_vulnerable_files' );
80
- delete_option( 'cg_tvs_safe_files' );
81
- }
82
-
83
- function deactivate(){
84
- wp_clear_scheduled_hook('cg_tvs_daily_scan');
85
- delete_option( 'cg_tvs_data' );
86
- }
87
-
88
- function get_fresh_data(){
89
- include_once(ABSPATH . WPINC . '/class-IXR.php');
90
- $ixr_client = new IXR_Client('http://codegarage.com/comm.php');
91
- if(!$ixr_client->query('request.TimthumbInfo')){
92
- // request failed. Handle this.
93
- $this->show_message('Updated script information request failed.');
94
- }else{
95
- $response = $ixr_client->getResponse();
96
- if(!empty($response['latest_version'])){
97
- $this->script_latest_version = $response['latest_version'];
98
- }
99
- if(!empty($response['latest_version'])){
100
- $this->script_safe_version = $response['safe_version'];
101
- }
102
- }
103
- $this->last_version_check = time();
104
- }
105
-
106
- function scan( $scan_base = WP_CONTENT_DIR ){
107
- // We need to make sure we're using uniform directory separators
108
- // to match filenames
109
- $scan_base = str_replace('/', DIRECTORY_SEPARATOR, $scan_base);
110
- require_once 'class-cg-tvs-filescanner.php';
111
- $scanner = new CG_FileScanner( $scan_base );
112
- $scanner->generate_inventory();
113
- $scanner->scan_inventory_timthumb();
114
- $scanner->check_for_intrusion_files();
115
- $this->last_scan = time();
116
- $this->script_instances = $scanner->instances;
117
- $this->suspicious_files = $scanner->suspicious_files;
118
- $this->scan_summary['Vulnerable'] = 0;
119
- $this->scan_summary['Outdated'] = 0;
120
- $this->scan_summary['Up to Date'] = 0;
121
- if(is_array($scanner->instances)){
122
- foreach($scanner->instances as $file){
123
- $this->scan_summary[$this->get_version_status($file['version'])]++;
124
- }
125
- }
126
- $this->show_message('Scan completed.');
127
- $this->save();
128
- }
129
-
130
- /*
131
- function get_version_float($version){
132
- // Convert version string into a float
133
- $version_parts = explode('.', $version);
134
- $version = intval($version_parts[0]).'.';
135
- for( $position = 1; $position<count($version_parts); ++$position ){
136
- $version .= intval($version_parts[$position]);
137
- }
138
-
139
- return floatval($version);
140
-
141
- }
142
- */
143
-
144
- function get_version_status($version){
145
-
146
- if( version_compare( $version, $this->script_safe_version, '<' ) ){
147
- return "Vulnerable";
148
- }
149
- if( version_compare( $version, $this->script_latest_version, '<' ) ){
150
- return "Outdated";
151
- }else{
152
- return "Up to Date";
153
- }
154
- }
155
- function display_version_status($version){
156
- $status = $this->get_version_status($version);
157
- switch($status){
158
- case 'Vulnerable':
159
- return "<span style='color:red'>Vulnerable</span>";
160
- break;
161
- case 'Outdated':
162
- return "<span style='color:#FFCC00'>Outdated</span>";
163
- break;
164
- case 'Up to Date':
165
- return "<span style='color:forestgreen'>Up to Date</span>";
166
- break;
167
- }
168
- }
169
- function fix_file( $file, $backup = 'without-backup' ) {
170
- if($backup == 'with-backup'){
171
- $this->backup_file( $file );
172
- }
173
-
174
- if(FALSE === $latest_src = $this->get_timthumb_src()){
175
- $this->show_message('We can\'t read updated timthumb source file, so we can\'t update the selected files. Try checking permissions on the plugin folder and the file "cg-tvs-timthumb-latest.txt", if it exists.');
176
- }
177
-
178
-
179
- if( FALSE !== $fw = @fopen( $file, 'w' ) ) {
180
- if ( fwrite( $fw, $latest_src ) ) {
181
- $this->show_message( 'File <strong>' . basename( $file ) . '</strong> at <em>' . $file . '</em> successfully upgraded.' );
182
- } else {
183
- $this->show_message( 'Unknown file write error.', true );
184
- }
185
- } else {
186
- $this->show_message( 'CAN\'T OPEN VULNERABLE FILE FOR WRITING', true );
187
- return;
188
- }
189
- }
190
-
191
- function get_timthumb_src_version(){
192
- $current_src = $this->get_timthumb_src();
193
- preg_match( "~define\s*\(\s*[\'|\"]VERSION[\'|\"],\s*[\'|\"]([^\'|\"]*)~", $current_src, $matches );
194
- $this->current_timthumb_src_version = $matches[1];
195
- }
196
-
197
- function download_new_timthumb_src(){
198
- $tmp_filename = download_url( 'http://timthumb.googlecode.com/svn/trunk/timthumb.php' );
199
- if ( is_wp_error( $tmp_filename ) ) {
200
- $this->show_message( 'Error downloading updated copy of timthumb.php. Can\'t fix outdated files.' );
201
- return false;
202
- }
203
- @unlink($this->plugin_base_dir . 'cg-tvs-timthumb-latest.txt');
204
- rename($tmp_filename, $this->plugin_base_dir . 'cg-tvs-timthumb-latest.txt');
205
- @unlink($tmp_filename);
206
- if(is_file($this->plugin_base_dir . 'cg-tvs-timthumb-latest.txt')){
207
- $this->get_timthumb_src_version();
208
- $this->show_message( 'Updated copy of timthumb downloaded successfully.' );
209
- return true;
210
- }else{
211
- $this->show_message( 'Error downloading updated copy of timthumb.php. Can\'t fix outdated files.' );
212
- return false;
213
- }
214
- }
215
-
216
- function get_timthumb_src(){
217
- $src_file_path = $this->plugin_base_dir . 'cg-tvs-timthumb-latest.txt';
218
- if ( FALSE !== $fr = @fopen( $src_file_path, 'r' ) ) {
219
- $latest_src = fread( $fr, filesize( $src_file_path ) );
220
- fclose($fr);
221
- } else {
222
- return false;
223
- }
224
- return $latest_src;
225
- }
226
-
227
- function backup_file( $path ){
228
- $backup_path = $this->plugin_base_dir . '/backups' . $path;
229
- wp_mkdir_p( dirname( $backup_path ) );
230
- copy($path, $backup_path);
231
- }
232
-
233
- function save(){
234
- $storage_array['script_latest_version'] = $this->script_latest_version;
235
- $storage_array['script_safe_version'] = $this->script_safe_version;
236
- $storage_array['last_version_check'] = $this->last_version_check;
237
-
238
- $storage_array['script_instances'] = $this->script_instances;
239
- $storage_array['suspicious_files'] = $this->suspicious_files;
240
- $storage_array['last_scan'] = $this->last_scan;
241
- $storage_array['scan_daily'] = $this->scan_daily;
242
-
243
- $storage_array['scan_summary'] = $this->scan_summary;
244
- update_option( 'cg_tvs_data', $storage_array );
245
-
246
- }
247
-
248
- function show_message( $message, $error = false )
249
- {
250
-
251
- if(!is_admin() || DOING_CRON === TRUE){
252
- return;
253
- }
254
- if ($error) {
255
- echo '<div id="message" class="error">';
256
- }
257
- else {
258
- echo '<div id="message" class="updated fade">';
259
- }
260
-
261
- echo "<p><strong>$message</strong></p></div>";
262
- }
263
-
264
- function admin_panel_controller(){
265
- if ( ! current_user_can( 'manage_options' ) ) {
266
- wp_die( __( 'You do not have sufficient permissions to access this page.' ) );
267
- }
268
-
269
- if(!is_writeable($this->plugin_base_dir)){
270
- $this->show_message('The plugin directory (at '.$this->plugin_base_dir.') is not writeable. Because of this, we can\'t download an updated copy of timthumb to use. Try changing permissions on this directory to 755 (or in certain cases, 777)', 'error');
271
- }
272
-
273
- if ( isset( $_REQUEST['cg-tvs-action'] ) ) {
274
- switch ( $_REQUEST['cg-tvs-action'] ) {
275
- case 'scan':
276
- $this->scan();
277
- break;
278
- case 'fix':
279
- $this->get_timthumb_src_version();
280
- if(version_compare($this->current_timthumb_src_version, $this->script_latest_version, '<')){
281
- $this->download_new_timthumb_src();
282
- }
283
- if ( wp_verify_nonce( $_POST['_wpnonce'], 'fix_timthumb_files' ) ) {
284
- if( is_array( $_POST['fix'] ) && !empty( $_POST['fix'] ) ){
285
- foreach( $_POST['fix'] as $file_id ) {
286
- $this->fix_file( $this->script_instances[intval($file_id)]['path'] );
287
- }
288
- }
289
- $this->scan(); // Re-scan site
290
- }
291
- break;
292
- case 'fixall':
293
- $nonce = $_GET['_wpnonce'];
294
- if ( wp_verify_nonce( $nonce, 'fix_all_timthumb_files' ) ) {
295
- $vulnerable_files = $this->get_vulnerable_files();
296
- if ( is_array( $vulnerable_files ) && ! empty( $vulnerable_files ) ) {
297
- foreach ( $vulnerable_files as $file ) {
298
- $this->fix_file( $file );
299
- }
300
- $this->scan(); // Re-scan site
301
- }
302
- }
303
- break;
304
- case 'update-options':
305
- $nonce = $_POST['_wpnonce'];
306
- if ( wp_verify_nonce( $nonce, 'update_tvs_options' ) ) {
307
- if($_POST['scan-daily']){
308
- $this->scan_daily = true;
309
- if ( !wp_next_scheduled( 'cg_tvs_daily_scan' ) ) {
310
- wp_schedule_event(time(), 'daily', 'cg_tvs_daily_scan');
311
- }
312
- }else{
313
- $this->scan_daily = false;
314
- wp_clear_scheduled_hook('cg_tvs_daily_scan');
315
- }
316
- }
317
- break;
318
- }
319
- }
320
-
321
- if(!empty($this->suspicious_files)){
322
- $this->show_message('<strong>Oh no!</strong> Files on your site indicate that your server has already been compromised by the timthumb vulnerability. <a href="http://codegarage.com/hack-cleanup">Get help here</a>', 'error');
323
- }
324
-
325
- include_once 'cg-tvs-admin-panel-display.php';
326
- }
327
-
328
- }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
trunk/locker_logo.png DELETED
Binary file
trunk/readme.txt DELETED
@@ -1,79 +0,0 @@
1
- === Timthumb Vulnerability Scanner ===
2
- Contributors: peterebutler
3
- Tags: security, scanning, timthumb, hack, vulnerability
4
- Requires at least: 3.0
5
- Tested up to: 3.3.1
6
- Stable tag: trunk
7
-
8
- Scans your wp-content directory for vulnerable instances of timthumb.php, and optionally upgrades them to a safe version.
9
-
10
- == Description ==
11
-
12
- The recent Timthumb.php vulnerability (discussed [here](http://markmaunder.com/2011/08/02/technical-details-and-scripts-of-the-wordpress-timthumb-php-hack/)) has left scores of unsuspecting bloggers hacked. It's the perfect combination of not so easy to fix for the technically disinclined, and easy to find and exploit for the malicious - resulting in a disastrous number of compromised sites.
13
-
14
- The Timthumb Vulnerability Scanner plugin will scan your entire wp-content directory for instances of any outdated and insecure version of the timthumb script, and give you the option to automatically upgrade them with a single click. Doing so will protect you from hackers looking to exploit this particular vulnerability.
15
-
16
- After new, lesser vulnerabilities were found, it became apparent that the plugin needs to be dynamic - able to keep you up to date with the latest version of timthumb, without requiring a plugin upgrade. The plugin now checks for the latest available version of timthumb routinely (each time you visit the scanner page, but no more than once a day), and can download and install the latest version, rather than the one included with the plugin. Scans are run daily (unless you disable them via the options link on the scanner page) via wp-cron to keep up with any new plugins or themes you've installed.
17
-
18
- More info at [CodeGarage](http://codegarage.com/blog/2011/09/wordpress-timthumb-vulnerability-scanner-plugin/).
19
-
20
- Special thanks to [Jacob Gillespie](http://jacobwg.com/) for help with the bulk upgrade feature.
21
- == Installation ==
22
-
23
- 1. Upload the `timthumb-vulnerability-scanner to the `/wp-content/plugins/` directory (alternatively, you could use the backend WordPress plugin installer, or install directly from the repository)
24
- 1. Activate the plugin through the 'Plugins' menu in WordPress
25
- 1. Visit the "Timthumb Scanner" page under the "Tools" Menu
26
-
27
- == Frequently Asked Questions ==
28
-
29
- = What does this look for specifically? =
30
-
31
- The scanner checks for all instances of timthumb it can find. It doesn't just check filename - it looks for code inside the file, ensuring that regardless of what a theme or plugin developer has named the file, it will be caught.
32
-
33
- = Where does it look for them? =
34
-
35
- The entire wp-content directory (even if it's not called wp-content) is scanned, including plugins, themes, and uploads.
36
-
37
- = I think I've already been hacked - will this clean it up? =
38
-
39
- No. This plugin exists to make sure your door is locked, not drag the burglers out of your house. It will run some cursory checks to see if a hacker has likely already hit your site, but has no functionality to clean up the problem.
40
-
41
- If you've already been hacked, all is not lost - there are people out there who will clean up your site for a fee. Get in touch here: http://codegarage.com/hack-cleanup
42
-
43
-
44
- == Screenshots ==
45
-
46
- 1. After clicking "Scan!", you'll be presented with a list of all instances of timthumb on your server. Outdated or Unsafe instances are marked as such. Clicking "Upgrade Selected Files" will update selected files to the latest available version of timthumb available on http://code.google.com/p/timthumb/.
47
-
48
- == Changelog ==
49
-
50
- = 1.53 =
51
- * Blocked direct access to all PHP plugin files
52
- * Made sure alerts are only shown when user is viewing in admin
53
-
54
- = 1.52 =
55
- * Added support for Windows servers
56
- * Fixed bug with version check which implied 2.8.10 was older than 2.8.5
57
-
58
- = 1.5 =
59
- * Added a daily automatic scan
60
- * Added alerts across the admin section when vulnerable or outdated files are found
61
- * Fixed issue with updating timthumb src file
62
-
63
- = 1.4 =
64
- * Largely rewrote codebase to clean up code.
65
- * Added functionality to download latest version of timthumb rather than relying on static version included in plugin.
66
- * Added functionality to check if there is a newer version of timthumb available.
67
- * Added scan to find obvious evidence of intrusion using timthumb exploit.
68
-
69
- = 1.3 =
70
- * Updated formatting to conform with WP coding standards, added bulk upgrade feature (Thanks to [Jacob Gillespie](http://jacobwg.com/)!).
71
-
72
- = 1.2 =
73
- * Updated scanner to more reliably find versions of timthumb - avoids conflict with plugin "Category Icons".
74
-
75
- = 1.1 =
76
- * Updated scanner to find *really* old versions of timthumb.
77
-
78
- = 1.0 =
79
- * Initial Commit.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
trunk/screenshot-1.png DELETED
Binary file
trunk/timthumb-vulnerability-scanner.php DELETED
@@ -1,31 +0,0 @@
1
- <?php
2
- /*
3
- Plugin Name: TimThumb Vulnerability Scanner
4
- Plugin URI: http://codegarage.com/blog/plugins/timthumb-vulnerability-scanner
5
- Description: Keep your instances of Timthumb up to date and free from vulnerabilities simply. Bonus - checks for obvious signs of compromised sites.
6
- Author: Peter Butler
7
- Version: 1.53
8
- Author URI: http://codegarage.com/
9
- */
10
-
11
- if ( ! defined('ABSPATH') ) {
12
- die('Please do not load this file directly.');
13
- }
14
-
15
- include_once 'class-cg-tvs-plugin.php';
16
- $CG_TVS_Plugin = new CG_TVS_Plugin();
17
- if(is_admin()){
18
- $CG_TVS_Plugin->init();
19
- }
20
- add_action( 'admin_menu', array($CG_TVS_Plugin, 'add_menus' ) );
21
- register_activation_hook( __FILE__, array($CG_TVS_Plugin, 'activate' ) );
22
- register_deactivation_hook( __FILE__, array($CG_TVS_Plugin, 'deactivate' ) );
23
-
24
- // For automatic daily scans
25
- add_action('cg_tvs_daily_scan', 'cg_tvs_daily_scan');
26
-
27
- function cg_tvs_daily_scan() {
28
- global $CG_TVS_Plugin;
29
- $CG_TVS_Plugin->init();
30
- $CG_TVS_Plugin->scan();
31
- }