function pdfthumb_create_thumb in PDFThumb 7

Create the PDF Covers. And insert the generated image to the media librarie.

Parameters

object $fid: The file_id from file to convert

Return value

object Drupal file object or NULL.

1 call to pdfthumb_create_thumb()

pdfthumb_process in ./pdfthumb.module

Find a PDF field for generate a thumb after saving or updating a node

File

./pdfthumb.module, line 252

Give a way to create pdf thumbnails.

Code

function pdfthumb_create_thumb($fid) {
  $file = file_load($fid);

  /*$file_directory_temp = file_directory_temp();
    $lastCharacterTempPath = substr(file_directory_temp(), -1);

    if ($lastCharacterTempPath == "/") {
      $file_directory_temp = substr(file_directory_temp(), 0, -1);
    }
    */
  if ($file->filemime == "application/pdf") {
    $src = drupal_realpath($file->uri) . "[0]";
    $dest = file_directory_temp() . "/" . $file->filename . ".png";
    if (file_exists($dest)) {
      unlink($dest);
    }

    //$exec = variable_get('pdfthumb_convertpath', NULL) . " " . escapeshellarg($src) . " " . escapeshellarg($dest);
    $exec = escapeshellcmd(variable_get('pdfthumb_convertpath', NULL)) . " " . escapeshellarg($src) . " " . escapeshellarg($dest);
    if (function_exists("exec")) {
      exec($exec, $array, $status);
    }
    elseif (function_exists("system")) {
      system($exec, $status);
    }
    elseif (function_exists("passthru")) {
      passthru($exec, $status);
    }
    if ($status == 0) {
      global $user;
      $file_uri = file_unmanaged_move($dest);
      $file = new stdClass();
      $file->uid = $user->uid;
      $file->status = 1;
      $file->filename = drupal_basename($dest);
      $file->uri = $file_uri;
      $file->filemime = file_get_mimetype($dest);
      $pdf_thumb = file_save($file);
      if (variable_get('pdfthumb_link_files', NULL)) {
        $fields = array(
          'pdffid' => $pdf_thumb->fid,
          'fid' => $fid,
        );
        drupal_write_record('pdfthumb', $fields);
      }
      return $pdf_thumb;
    }
    else {
      drupal_set_message(t("Error while creating PDF Thumbnails."), "error");
      watchdog("pdfthumb", "Error during the converstion from the file @src to @dest with the command @exec", array(
        '@src' => $src,
        '@dest' => $dest,
        '@exec' => $exec,
      ), WATCHDOG_WARNING);
      return NULL;
    }
  }
  else {
    return NULL;
  }
}