[Revo] New Plugin: AutoFixImageSize

if ($dimensions = getimagesize($config['base_path'].$filename, $info))

[2011-06-03 18:00:54] (ERROR @ /myweb/core/cache/includes/elements/modplugin/2.include.cache.php : 36) PHP warning: getimagesize(/myweb/http://www.adobe.com/images/shared/download_buttons/get_adobe_flash_player.png) [<a href='function.getimagesize'>function.getimagesize</a>]:

// find all img elements with a src attribute
preg_match_all('|\<img.*?src=[",\'](.*?)[",\'].*?[^>]+\>|i', $str, $filenames);

<?php
/**
 * @name AutoFixImageSize
 * @version 1.0.0 rc2
 * @author Gerrit van Aaken <[email protected]> April–June 2011
 *
 * @license GPLv2
 *
 * Fixes img elements with wrong width/height attributes. 
 * Uses phpThumbOf for generating correctly sized physical image files.
 *
 * Must be executed at "OnWebPagePrerender"
 */

// get parsed document as string
$str = $modx->resource->_output;

// get configuration from global object
$config = $modx->getConfig();

// find all img elements with a src attribute
preg_match_all('|\<img.*?src=[",\'](.*?)[",\'].*?[^>]+\>|i', $str, $filenames);

// loop through all found img elements
foreach($filenames[1] as $i => $filename) {
  
  $img_old = $filenames[0][$i];
  $allowcaching = false; // pessimistic
  
  // is file already cached?
  if (strpos($filename,"connector.php?") == false) {

    // check if external caching is allowed
    if (substr($filename,0,7) == "http://" || substr($filename,0,8) == "https://") {
      $pre = "";
      if ($config['setting_phpthumb_nohotlink_enabled']) {
        foreach (explode(",", $config['setting_phpthumb_nohotlink_valid_domains']) as $alldomain) {
          if ( strpos(strtolower($filename), strtolower(trim($alldomain))) != false) {
            $allowcaching = true;
          }
        } 
      } else {
        $allowcaching = true;
      }
    } else {
      $pre = $config['base_path'];
      $allowcaching = true;
    }
  }
  
  // do we have physical access to the file?
  if ($allowcaching && $dimensions = getimagesize($pre.$filename, $info)) {

    // find width and height attribut and save value
    preg_match_all('|width=[",\']([0-9]+?)[",\']|i', $filenames[0][$i], $widths);
    $width = $widths[1][0];
    preg_match_all('|height=[",\']([0-9]+?)[",\']|i', $filenames[0][$i], $heights);
    $height = $heights[1][0];

    // if resizing needed...
    if (($width && $width != $dimensions[0]) || ($height && $height != $dimensions[1])) {

      // prepare resizing metadata
      $filetype = strtolower(substr($filename, strrpos($filename,".")+1));
      $image = array();
      $image['input'] = $filename;
      $image['options'] = "f=".$filetype."&h=".$height."&w=".$width; 

      // perform physical resizing and caching via phpthumbof
      $cacheurl = $modx->runSnippet('phpthumbof',$image);

      // set freshly cached image file location into old src attribute
      $img_new = str_replace($filename, $cacheurl, $img_old);  

      // replace old image element with new one on whole page content
      $str = str_replace($img_old, $img_new, $str);  
    }
  }
}

// exchange the output string with the replaced one
$modx->resource->_output = $str;

[2011-06-04 00:44:09] (ERROR @ /myweb/core/cache/includes/elements/modplugin/2.include.cache.php : 57) PHP warning: getimagesize() [<a href='function.getimagesize'>function.getimagesize</a>]: URL file-access is disabled in the server configuration
[2011-06-04 00:44:09] (ERROR @ /myweb/core/cache/includes/elements/modplugin/2.include.cache.php : 57) PHP warning: getimagesize(http://www.adobe.com/images/shared/download_buttons/get_adobe_flash_player.png) [<a href='function.getimagesize'>function.getimagesize</a>]: failed to open stream: no suitable wrapper could be found

if ($allowcaching && $dimensions = getimagesize($pre.$filename, $info)) {

if ($config['setting_phpthumb_nohotlink_enabled']) {
        // NOT TRUE
      } else {
        $allowcaching = true; // BECOMES TRUE
      }

<?php
/**
 * @name AutoFixImageSize
 * @version 1.0.0 rc2
 * @author Gerrit van Aaken <[email protected]> April–June 2011
 *
 * @license GPLv2
 *
 * Fixes img elements with wrong width/height attributes. 
 * Uses phpThumbOf for generating correctly sized physical image files.
 *
 * Must be executed at "OnWebPagePrerender"
 */

// $modx->setDebug(E_USER_ERROR);
// $modx->setLogLevel(modX::LOG_LEVEL_DEBUG);

// get parsed document as string
$str = $modx->resource->_output;

// get configuration from global object
$config = $modx->getConfig();

// find all img elements with a src attribute
preg_match_all('|\<img.*?src=[",\'](.*?)[",\'].*?[^>]+\>|i', $str, $filenames);

// loop through all found img elements
foreach($filenames[1] as $i => $filename) {
  
  $img_old = $filenames[0][$i];
  $allowcaching = false; // pessimistic

// $modx->log(modX::LOG_LEVEL_DEBUG, 'Prevent hotlinking: '.$config['phpthumb_nohotlink_enabled']);
  
  // is file already cached?
  if (strpos($filename,"phpthumb") == false) {

    // check if external caching is allowed
    if (substr($filename,0,7) == "http://" || substr($filename,0,8) == "https://") {
      $pre = "";
      if ($config['phpthumb_nohotlink_enabled']) {
        foreach (explode(",", $config['phpthumb_nohotlink_valid_domains']) as $alldomain) {
          if ( strpos(strtolower($filename), strtolower(trim($alldomain))) != false) {
            $allowcaching = true;
          }
        } 
      } else {
        $allowcaching = true;
      }
    } else {
      $pre = $config['base_path'];
      $allowcaching = true;
    }
  }
  
  // do we have physical access to the file?
  if ($allowcaching && $dimensions = getimagesize($pre.$filename, $info)) {

    // find width and height attribut and save value
    preg_match_all('|width=[",\']([0-9]+?)[",\']|i', $filenames[0][$i], $widths);
    $width = $widths[1][0];
    preg_match_all('|height=[",\']([0-9]+?)[",\']|i', $filenames[0][$i], $heights);
    $height = $heights[1][0];

    // if resizing needed...
    if (($width && $width != $dimensions[0]) || ($height && $height != $dimensions[1])) {

      // prepare resizing metadata
      $filetype = strtolower(substr($filename, strrpos($filename,".")+1));
      $image = array();
      $image['input'] = $filename;
      $image['options'] = "f=".$filetype."&h=".$height."&w=".$width; 

      // perform physical resizing and caching via phpthumbof
      $cacheurl = $modx->runSnippet('phpthumbof',$image);

      // set freshly cached image file location into old src attribute
      $img_new = str_replace($filename, $cacheurl, $img_old);  

      // replace old image element with new one on whole page content
      $str = str_replace($img_old, $img_new, $str);  
    }
  }
}

// exchange the output string with the replaced one
$modx->resource->_output = $str;

if ($allowcaching && $dimensions = getimagesize($pre.$filename, $info)) {

$filename = str_replace('%20', ' ', $filename);

$filename = str_replace(' ', '%20', $filename);

$image['options'] = "f=".$filetype."&h=".$height."&w=".$width;