+global\upload::upload()

Complexity

Conditions	120
Paths	> 20000

Size

Total Lines	474
Code Lines	368

Duplication

Lines	0
Ratio	0 %

<?php
    function upload($file, $lang = 'en_GB') {

        $this->version            = '0.31';

        $this->file_src_name      = '';
        $this->file_src_name_body = '';
        $this->file_src_name_ext  = '';
        $this->file_src_mime      = '';
        $this->file_src_size      = '';

The property $file_src_size was declared of type double, but '' is of type string. Maybe add a type cast?

        $this->file_src_error     = '';
        $this->file_src_pathname  = '';
        $this->file_src_temp      = '';

        $this->file_dst_path      = '';
        $this->file_dst_name      = '';
        $this->file_dst_name_body = '';
        $this->file_dst_name_ext  = '';
        $this->file_dst_pathname  = '';

        $this->image_src_x        = null;
        $this->image_src_y        = null;
        $this->image_src_bits     = null;
        $this->image_src_type     = null;
        $this->image_src_pixels   = null;
        $this->image_dst_x        = 0;
        $this->image_dst_y        = 0;

        $this->uploaded           = true;
        $this->no_upload_check    = false;
        $this->processed          = true;
        $this->error              = '';
        $this->log                = '';
        $this->allowed            = array();
        $this->forbidden          = array();
        $this->file_is_image      = false;
        $this->init();
        $info                     = null;
        $mime_from_browser        = null;

        // sets default language
        $this->translation        = array();
        $this->translation['file_error']                  = 'File error. Please try again.';
        $this->translation['local_file_missing']          = 'Local file doesn\'t exist.';
        $this->translation['local_file_not_readable']     = 'Local file is not readable.';
        $this->translation['uploaded_too_big_ini']        = 'File upload error (the uploaded file exceeds the upload_max_filesize directive in php.ini).';
        $this->translation['uploaded_too_big_html']       = 'File upload error (the uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the html form).';
        $this->translation['uploaded_partial']            = 'File upload error (the uploaded file was only partially uploaded).';
        $this->translation['uploaded_missing']            = 'File upload error (no file was uploaded).';
        $this->translation['uploaded_no_tmp_dir']         = 'File upload error (missing a temporary folder).';
        $this->translation['uploaded_cant_write']         = 'File upload error (failed to write file to disk).';
        $this->translation['uploaded_err_extension']      = 'File upload error (file upload stopped by extension).';
        $this->translation['uploaded_unknown']            = 'File upload error (unknown error code).';
        $this->translation['try_again']                   = 'File upload error. Please try again.';
        $this->translation['file_too_big']                = 'File too big.';
        $this->translation['no_mime']                     = 'MIME type can\'t be detected.';
        $this->translation['incorrect_file']              = 'Incorrect type of file.';
        $this->translation['image_too_wide']              = 'Image too wide.';
        $this->translation['image_too_narrow']            = 'Image too narrow.';
        $this->translation['image_too_high']              = 'Image too tall.';
        $this->translation['image_too_short']             = 'Image too short.';
        $this->translation['ratio_too_high']              = 'Image ratio too high (image too wide).';
        $this->translation['ratio_too_low']               = 'Image ratio too low (image too high).';
        $this->translation['too_many_pixels']             = 'Image has too many pixels.';
        $this->translation['not_enough_pixels']           = 'Image has not enough pixels.';
        $this->translation['file_not_uploaded']           = 'File not uploaded. Can\'t carry on a process.';
        $this->translation['already_exists']              = '%s already exists. Please change the file name.';
        $this->translation['temp_file_missing']           = 'No correct temp source file. Can\'t carry on a process.';
        $this->translation['source_missing']              = 'No correct uploaded source file. Can\'t carry on a process.';
        $this->translation['destination_dir']             = 'Destination directory can\'t be created. Can\'t carry on a process.';
        $this->translation['destination_dir_missing']     = 'Destination directory doesn\'t exist. Can\'t carry on a process.';
        $this->translation['destination_path_not_dir']    = 'Destination path is not a directory. Can\'t carry on a process.';
        $this->translation['destination_dir_write']       = 'Destination directory can\'t be made writeable. Can\'t carry on a process.';
        $this->translation['destination_path_write']      = 'Destination path is not a writeable. Can\'t carry on a process.';
        $this->translation['temp_file']                   = 'Can\'t create the temporary file. Can\'t carry on a process.';
        $this->translation['source_not_readable']         = 'Source file is not readable. Can\'t carry on a process.';
        $this->translation['no_create_support']           = 'No create from %s support.';
        $this->translation['create_error']                = 'Error in creating %s image from source.';
        $this->translation['source_invalid']              = 'Can\'t read image source. Not an image?.';
        $this->translation['gd_missing']                  = 'GD doesn\'t seem to be present.';
        $this->translation['watermark_no_create_support'] = 'No create from %s support, can\'t read watermark.';
        $this->translation['watermark_create_error']      = 'No %s read support, can\'t create watermark.';
        $this->translation['watermark_invalid']           = 'Unknown image format, can\'t read watermark.';
        $this->translation['file_create']                 = 'No %s create support.';
        $this->translation['no_conversion_type']          = 'No conversion type defined.';
        $this->translation['copy_failed']                 = 'Error copying file on the server. copy() failed.';
        $this->translation['reading_failed']              = 'Error reading the file.';

        // determines the language
        $this->lang               = $lang;
        if ($this->lang != 'en_GB' && file_exists(dirname(__FILE__).'/lang') && file_exists(dirname(__FILE__).'/lang/class.upload.' . $lang . '.php')) {
            $translation = null;
            include(dirname(__FILE__).'/lang/class.upload.' . $lang . '.php');
            if (is_array($translation)) {
                $this->translation = array_merge($this->translation, $translation);
            } else {
                $this->lang = 'en_GB';
            }
        }


        // determines the supported MIME types, and matching image format
        $this->image_supported = array();
        if ($this->gdversion()) {
            if (imagetypes() & IMG_GIF) {
                $this->image_supported['image/gif'] = 'gif';
            }
            if (imagetypes() & IMG_JPG) {
                $this->image_supported['image/jpg'] = 'jpg';
                $this->image_supported['image/jpeg'] = 'jpg';
                $this->image_supported['image/pjpeg'] = 'jpg';
            }
            if (imagetypes() & IMG_PNG) {
                $this->image_supported['image/png'] = 'png';
                $this->image_supported['image/x-png'] = 'png';
            }
            if (imagetypes() & IMG_WBMP) {
                $this->image_supported['image/bmp'] = 'bmp';
                $this->image_supported['image/x-ms-bmp'] = 'bmp';
                $this->image_supported['image/x-windows-bmp'] = 'bmp';
            }
        }

        // display some system information
        if (empty($this->log)) {
            $this->log .= '<b>system information</b><br />';
            if (function_exists('ini_get_all')) {
                $inis = ini_get_all();
                $open_basedir = (array_key_exists('open_basedir', $inis) && array_key_exists('local_value', $inis['open_basedir']) && !empty($inis['open_basedir']['local_value'])) ? $inis['open_basedir']['local_value'] : false;
            } else {
                $open_basedir = false;
            }
            $gd           = $this->gdversion() ? $this->gdversion(true) : 'GD not present';
            $supported    = trim((in_array('png', $this->image_supported) ? 'png' : '') . ' ' . (in_array('jpg', $this->image_supported) ? 'jpg' : '') . ' ' . (in_array('gif', $this->image_supported) ? 'gif' : '') . ' ' . (in_array('bmp', $this->image_supported) ? 'bmp' : ''));
            $this->log .= '-&nbsp;class version           : ' . $this->version . '<br />';
            $this->log .= '-&nbsp;operating system        : ' . PHP_OS . '<br />';
            $this->log .= '-&nbsp;PHP version             : ' . PHP_VERSION . '<br />';
            $this->log .= '-&nbsp;GD version              : ' . $gd . '<br />';
            $this->log .= '-&nbsp;supported image types   : ' . (!empty($supported) ? $supported : 'none') . '<br />';
            $this->log .= '-&nbsp;open_basedir            : ' . (!empty($open_basedir) ? $open_basedir : 'no restriction') . '<br />';
            $this->log .= '-&nbsp;upload_max_filesize     : ' . $this->file_max_size_raw . ' (' . $this->file_max_size . ' bytes)<br />';
            $this->log .= '-&nbsp;language                : ' . $this->lang . '<br />';
        }

        if (!$file) {

The expression $file of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using empty($expr) instead to make it clear that you intend to check for an array without elements.

            $this->uploaded = false;
            $this->error = $this->translate('file_error');
        }

        // check if we sent a local filename rather than a $_FILE element
        if (!is_array($file)) {
            if (empty($file)) {
                $this->uploaded = false;
                $this->error = $this->translate('file_error');
            } else {
                $this->no_upload_check = TRUE;
                // this is a local filename, i.e.not uploaded
                $this->log .= '<b>' . $this->translate("source is a local file") . ' ' . $file . '</b><br />';

                if ($this->uploaded && !file_exists($file)) {
                    $this->uploaded = false;
                    $this->error = $this->translate('local_file_missing');
                }

                if ($this->uploaded && !is_readable($file)) {
                    $this->uploaded = false;
                    $this->error = $this->translate('local_file_not_readable');
                }

                if ($this->uploaded) {
                    $this->file_src_pathname   = $file;
                    $this->file_src_name       = basename($file);
                    $this->log .= '- local file name OK<br />';
                    preg_match('/\.([^\.]*$)/', $this->file_src_name, $extension);
                    if (is_array($extension) && sizeof($extension) > 0) {
                        $this->file_src_name_ext      = strtolower($extension[1]);
                        $this->file_src_name_body     = substr($this->file_src_name, 0, ((strlen($this->file_src_name) - strlen($this->file_src_name_ext)))-1);
                    } else {
                        $this->file_src_name_ext      = '';
                        $this->file_src_name_body     = $this->file_src_name;
                    }
                    $this->file_src_size = (file_exists($file) ? filesize($file) : 0);

The property $file_src_size was declared of type double, but file_exists($file) ? filesize($file) : 0 is of type integer. Maybe add a type cast?

                }
                $this->file_src_error = 0;

The property $file_src_error was declared of type string, but 0 is of type integer. Maybe add a type cast?

            }
        } else {
            // this is an element from $_FILE, i.e. an uploaded file
            $this->log .= '<b>source is an uploaded file</b><br />';
            if ($this->uploaded) {
                $this->file_src_error         = trim($file['error']);
                switch($this->file_src_error) {
                    case UPLOAD_ERR_OK:
                        // all is OK
                        $this->log .= '- upload OK<br />';
                        break;
                    case UPLOAD_ERR_INI_SIZE:
                        $this->uploaded = false;
                        $this->error = $this->translate('uploaded_too_big_ini');
                        break;
                    case UPLOAD_ERR_FORM_SIZE:
                        $this->uploaded = false;
                        $this->error = $this->translate('uploaded_too_big_html');
                        break;
                    case UPLOAD_ERR_PARTIAL:
                        $this->uploaded = false;
                        $this->error = $this->translate('uploaded_partial');
                        break;
                    case UPLOAD_ERR_NO_FILE:
                        $this->uploaded = false;
                        $this->error = $this->translate('uploaded_missing');
                        break;
                    case @UPLOAD_ERR_NO_TMP_DIR:
                        $this->uploaded = false;
                        $this->error = $this->translate('uploaded_no_tmp_dir');
                        break;
                    case @UPLOAD_ERR_CANT_WRITE:
                        $this->uploaded = false;
                        $this->error = $this->translate('uploaded_cant_write');
                        break;
                    case @UPLOAD_ERR_EXTENSION:
                        $this->uploaded = false;
                        $this->error = $this->translate('uploaded_err_extension');
                        break;
                    default:
                        $this->uploaded = false;
                        $this->error = $this->translate('uploaded_unknown') . ' ('.$this->file_src_error.')';
                }
            }

            if ($this->uploaded) {
                $this->file_src_pathname   = $file['tmp_name'];
                $this->file_src_name       = $file['name'];
                if ($this->file_src_name == '') {
                    $this->uploaded = false;
                    $this->error = $this->translate('try_again');
                }
            }

            if ($this->uploaded) {
                $this->log .= '- file name OK<br />';
                preg_match('/\.([^\.]*$)/', $this->file_src_name, $extension);
                if (is_array($extension) && sizeof($extension) > 0) {
                    $this->file_src_name_ext      = strtolower($extension[1]);
                    $this->file_src_name_body     = substr($this->file_src_name, 0, ((strlen($this->file_src_name) - strlen($this->file_src_name_ext)))-1);
                } else {
                    $this->file_src_name_ext      = '';
                    $this->file_src_name_body     = $this->file_src_name;
                }
                $this->file_src_size = $file['size'];
                $mime_from_browser = $file['type'];
            }
        }

        if ($this->uploaded) {
            $this->log .= '<b>determining MIME type</b><br />';
            $this->file_src_mime = null;

            // checks MIME type with Fileinfo PECL extension
            if (!$this->file_src_mime || !is_string($this->file_src_mime) || empty($this->file_src_mime) || strpos($this->file_src_mime, '/') === FALSE) {
                if ($this->mime_fileinfo) {
                    $this->log .= '- Checking MIME type with Fileinfo PECL extension<br />';
                    if (function_exists('finfo_open')) {
                        if ($this->mime_fileinfo !== '') {
                            if ($this->mime_fileinfo === true) {
                                if (getenv('MAGIC') === FALSE) {
                                    if (substr(PHP_OS, 0, 3) == 'WIN') {
                                        $path = realpath(ini_get('extension_dir') . '/../') . 'extras/magic';
                                    } else {
                                        $path = '/usr/share/file/magic';
                                    }
                                    $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;MAGIC path defaults to ' . $path . '<br />';
                                } else {
                                    $path = getenv('MAGIC');
                                    $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;MAGIC path is set to ' . $path . ' from MAGIC variable<br />';
                                }
                            } else {
                                $path = $this->mime_fileinfo;
                                $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;MAGIC path is set to ' . $path . '<br />';
                            }
                            $f = @finfo_open(FILEINFO_MIME, $path);
                        } else {
                            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;MAGIC path will not be used<br />';
                            $f = @finfo_open(FILEINFO_MIME);
                        }
                        if (is_resource($f)) {
                            $mime = finfo_file($f, realpath($this->file_src_pathname));
                            finfo_close($f);
                            $this->file_src_mime = $mime;
                            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;MIME type detected as ' . $this->file_src_mime . ' by Fileinfo PECL extension<br />';
                            if (preg_match("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", $this->file_src_mime)) {
                                $this->file_src_mime = preg_replace("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", '$1/$2', $this->file_src_mime);

It seems like preg_replace('/^([\\.-\\w]+)\\/([\\.-\\w]+)(.*)$/i', '$1/$2', $this->file_src_mime) can also be of type array<integer,string>. However, the property $file_src_mime is declared as type string. Maybe add an additional type check?

                                $this->log .= '-&nbsp;MIME validated as ' . $this->file_src_mime . '<br />';
                            } else {
                                $this->file_src_mime = null;
                            }
                        } else {
                            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;Fileinfo PECL extension failed (finfo_open)<br />';
                        }
                    } elseif (@class_exists('finfo')) {
                        $f = new finfo( FILEINFO_MIME );
                        if ($f) {
                            $this->file_src_mime = $f->file(realpath($this->file_src_pathname));
                            $this->log .= '- MIME type detected as ' . $this->file_src_mime . ' by Fileinfo PECL extension<br />';
                            if (preg_match("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", $this->file_src_mime)) {
                                $this->file_src_mime = preg_replace("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", '$1/$2', $this->file_src_mime);
                                $this->log .= '-&nbsp;MIME validated as ' . $this->file_src_mime . '<br />';
                            } else {
                                $this->file_src_mime = null;
                            }
                        } else {
                            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;Fileinfo PECL extension failed (finfo)<br />';
                        }
                    } else {
                        $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;Fileinfo PECL extension not available<br />';
                    }
                } else {
                    $this->log .= '- Fileinfo PECL extension deactivated<br />';
                }
            }

            // checks MIME type with shell if unix access is authorized
            if (!$this->file_src_mime || !is_string($this->file_src_mime) || empty($this->file_src_mime) || strpos($this->file_src_mime, '/') === FALSE) {
                if ($this->mime_file) {
                    $this->log .= '- Checking MIME type with UNIX file() command<br />';
                    if (substr(PHP_OS, 0, 3) != 'WIN') {
                        if (function_exists('exec')) {
                            if (strlen($mime = @exec("file -bi ".escapeshellarg($this->file_src_pathname))) != 0) {
                                $this->file_src_mime = trim($mime);
                                $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;MIME type detected as ' . $this->file_src_mime . ' by UNIX file() command<br />';
                                if (preg_match("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", $this->file_src_mime)) {
                                    $this->file_src_mime = preg_replace("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", '$1/$2', $this->file_src_mime);
                                    $this->log .= '-&nbsp;MIME validated as ' . $this->file_src_mime . '<br />';
                                } else {
                                    $this->file_src_mime = null;
                                }
                            } else {
                                $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;UNIX file() command failed<br />';
                            }
                        } else {
                            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;PHP exec() function is disabled<br />';
                        }
                    } else {
                        $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;UNIX file() command not availabled<br />';
                    }
                } else {
                    $this->log .= '- UNIX file() command is deactivated<br />';
                }
            }

            // checks MIME type with mime_magic
            if (!$this->file_src_mime || !is_string($this->file_src_mime) || empty($this->file_src_mime) || strpos($this->file_src_mime, '/') === FALSE) {
                if ($this->mime_magic) {
                    $this->log .= '- Checking MIME type with mime.magic file (mime_content_type())<br />';
                    if (function_exists('mime_content_type')) {
                        $this->file_src_mime = mime_content_type($this->file_src_pathname);
                        $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;MIME type detected as ' . $this->file_src_mime . ' by mime_content_type()<br />';
                        if (preg_match("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", $this->file_src_mime)) {
                            $this->file_src_mime = preg_replace("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", '$1/$2', $this->file_src_mime);
                            $this->log .= '-&nbsp;MIME validated as ' . $this->file_src_mime . '<br />';
                        } else {
                            $this->file_src_mime = null;
                        }
                    } else {
                        $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;mime_content_type() is not available<br />';
                    }
                } else {
                    $this->log .= '- mime.magic file (mime_content_type()) is deactivated<br />';
                }
            }

            // checks MIME type with getimagesize()
            if (!$this->file_src_mime || !is_string($this->file_src_mime) || empty($this->file_src_mime) || strpos($this->file_src_mime, '/') === FALSE) {
                if ($this->mime_getimagesize) {
                    $this->log .= '- Checking MIME type with getimagesize()<br />';
                    $info = getimagesize($this->file_src_pathname);
                    if (is_array($info) && array_key_exists('mime', $info)) {
                        $this->file_src_mime = trim($info['mime']);
                        if (empty($this->file_src_mime)) {
                            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;MIME empty, guessing from type<br />';
                            $mime = (is_array($info) && array_key_exists(2, $info) ? $info[2] : null); // 1 = GIF, 2 = JPG, 3 = PNG
                            $this->file_src_mime = ($mime==IMAGETYPE_GIF ? 'image/gif' : ($mime==IMAGETYPE_JPEG ? 'image/jpeg' : ($mime==IMAGETYPE_PNG ? 'image/png' : ($mime==IMAGETYPE_BMP ? 'image/bmp' : null))));
                        }
                        $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;MIME type detected as ' . $this->file_src_mime . ' by PHP getimagesize() function<br />';
                        if (preg_match("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", $this->file_src_mime)) {
                            $this->file_src_mime = preg_replace("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", '$1/$2', $this->file_src_mime);
                            $this->log .= '-&nbsp;MIME validated as ' . $this->file_src_mime . '<br />';
                        } else {
                            $this->file_src_mime = null;
                        }
                    } else {
                        $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;getimagesize() failed<br />';
                    }
                } else {
                    $this->log .= '- getimagesize() is deactivated<br />';
                }
            }

            // default to MIME from browser (or Flash)
            if (!empty($mime_from_browser) && !$this->file_src_mime || !is_string($this->file_src_mime) || empty($this->file_src_mime)) {
                $this->file_src_mime =$mime_from_browser;
                $this->log .= '- MIME type detected as ' . $this->file_src_mime . ' by browser<br />';
                if (preg_match("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", $this->file_src_mime)) {
                    $this->file_src_mime = preg_replace("/^([\.-\w]+)\/([\.-\w]+)(.*)$/i", '$1/$2', $this->file_src_mime);
                    $this->log .= '-&nbsp;MIME validated as ' . $this->file_src_mime . '<br />';
                } else {
                    $this->file_src_mime = null;
                }
            }

            // we need to work some magic if we upload via Flash
            if ($this->file_src_mime == 'application/octet-stream' || !$this->file_src_mime || !is_string($this->file_src_mime) || empty($this->file_src_mime) || strpos($this->file_src_mime, '/') === FALSE) {
                if ($this->file_src_mime == 'application/octet-stream') $this->log .= '- Flash may be rewriting MIME as application/octet-stream<br />';
                $this->log .= '- Try to guess MIME type from file extension (' . $this->file_src_name_ext . '): ';
                if (array_key_exists($this->file_src_name_ext, $this->mime_types)) $this->file_src_mime = $this->mime_types[$this->file_src_name_ext];
                if ($this->file_src_mime == 'application/octet-stream') {
                    $this->log .= 'doesn\'t look like anything known<br />';
                } else {
                    $this->log .= 'MIME type set to ' . $this->file_src_mime . '<br />';
                }
            }

            if (!$this->file_src_mime || !is_string($this->file_src_mime) || empty($this->file_src_mime) || strpos($this->file_src_mime, '/') === FALSE) {
                $this->log .= '- MIME type couldn\'t be detected! (' . (string) $this->file_src_mime . ')<br />';
            }

            // determine whether the file is an image
            if ($this->file_src_mime && is_string($this->file_src_mime) && !empty($this->file_src_mime) && array_key_exists($this->file_src_mime, $this->image_supported)) {
                $this->file_is_image = true;
                $this->image_src_type = $this->image_supported[$this->file_src_mime];
            }

            // if the file is an image, we gather some useful data
            if ($this->file_is_image) {
                if ($h = fopen($this->file_src_pathname, 'r')) {
                    fclose($h);
                    $info = getimagesize($this->file_src_pathname);
                    if (is_array($info)) {
                        $this->image_src_x    = $info[0];
                        $this->image_src_y    = $info[1];
                        $this->image_dst_x    = $this->image_src_x;
                        $this->image_dst_y    = $this->image_src_y;
                        $this->image_src_pixels = $this->image_src_x * $this->image_src_y;
                        $this->image_src_bits = array_key_exists('bits', $info) ? $info['bits'] : null;
                    } else {
                        $this->file_is_image = false;
                        $this->uploaded = false;
                        $this->log .= '- can\'t retrieve image information, image may have been tampered with<br />';
                        $this->error = $this->translate('source_invalid');
                    }
                } else {
                    $this->log .= '- can\'t read source file directly. open_basedir restriction in place?<br />';
                }
            }

            $this->log .= '<b>source variables</b><br />';
            $this->log .= '- You can use all these before calling process()<br />';
            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;file_src_name         : ' . $this->file_src_name . '<br />';
            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;file_src_name_body    : ' . $this->file_src_name_body . '<br />';
            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;file_src_name_ext     : ' . $this->file_src_name_ext . '<br />';
            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;file_src_pathname     : ' . $this->file_src_pathname . '<br />';
            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;file_src_mime         : ' . $this->file_src_mime . '<br />';
            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;file_src_size         : ' . $this->file_src_size . ' (max= ' . $this->file_max_size . ')<br />';
            $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;file_src_error        : ' . $this->file_src_error . '<br />';

            if ($this->file_is_image) {
                $this->log .= '- source file is an image<br />';
                $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;image_src_x           : ' . $this->image_src_x . '<br />';
                $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;image_src_y           : ' . $this->image_src_y . '<br />';
                $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;image_src_pixels      : ' . $this->image_src_pixels . '<br />';
                $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;image_src_type        : ' . $this->image_src_type . '<br />';
                $this->log .= '&nbsp;&nbsp;&nbsp;&nbsp;image_src_bits        : ' . $this->image_src_bits . '<br />';
            }
        }

    }