From e334c472fb4be44feec3a73402fc4a2b062cbfc0 Mon Sep 17 00:00:00 2001 From: admin Date: Sat, 21 Oct 2006 19:44:22 +0000 Subject: --- system/libraries/Upload.php | 418 ++++++++++++++++++++++---------------------- 1 file changed, 209 insertions(+), 209 deletions(-) (limited to 'system/libraries/Upload.php') diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php index 09a479431..1a0b0fc8f 100644 --- a/system/libraries/Upload.php +++ b/system/libraries/Upload.php @@ -7,7 +7,7 @@ * @package CodeIgniter * @author Rick Ellis * @copyright Copyright (c) 2006, pMachine, Inc. - * @license http://www.codeignitor.com/user_guide/license.html + * @license http://www.codeignitor.com/user_guide/license.html * @link http://www.codeigniter.com * @since Version 1.0 * @filesource @@ -17,7 +17,7 @@ /** * File Uploading Class - * + * * @package CodeIgniter * @subpackage Libraries * @category Uploads @@ -43,7 +43,7 @@ class CI_Upload { var $image_width = ''; var $image_height = ''; var $image_type = ''; - var $image_size_str = ''; + var $image_size_str = ''; var $error_msg = array(); var $mimes = array(); var $remove_spaces = TRUE; @@ -75,7 +75,7 @@ class CI_Upload { * @return void */ function initialize($config = array()) - { + { foreach ($config as $key => $val) { $method = 'set_'.$key; @@ -98,41 +98,41 @@ class CI_Upload { * @access public * @return bool */ - function do_upload($field = 'userfile') - { + function do_upload($field = 'userfile') + { // Is $_FILES[$field] set? If not, no reason to continue. - if ( ! isset($_FILES[$field])) - { + if ( ! isset($_FILES[$field])) + { $this->set_error('upload_userfile_not_set'); return FALSE; - } - + } + // Is the upload path valid? if ( ! $this->validate_upload_path()) { return FALSE; } - + // Was the file able to be uploaded? If not, determine the reason why. - if ( ! is_uploaded_file($_FILES[$field]['tmp_name'])) - { - $error = ( ! isset($_FILES[$field]['error'])) ? 4 : $_FILES[$field]['error']; - - switch($error) - { - case 1 : $this->set_error('upload_file_exceeds_limit'); - break; - case 3 : $this->set_error('upload_file_partial'); - break; - case 4 : $this->set_error('upload_no_file_selected'); - break; - default : $this->set_error('upload_no_file_selected'); - break; - } - - return FALSE; - } - + if ( ! is_uploaded_file($_FILES[$field]['tmp_name'])) + { + $error = ( ! isset($_FILES[$field]['error'])) ? 4 : $_FILES[$field]['error']; + + switch($error) + { + case 1 : $this->set_error('upload_file_exceeds_limit'); + break; + case 3 : $this->set_error('upload_file_partial'); + break; + case 4 : $this->set_error('upload_no_file_selected'); + break; + default : $this->set_error('upload_no_file_selected'); + break; + } + + return FALSE; + } + // Set the uploaded data as class variables $this->file_temp = $_FILES[$field]['tmp_name']; $this->file_name = $_FILES[$field]['name']; @@ -148,36 +148,36 @@ class CI_Upload { } // Is the file type allowed to be uploaded? - if ( ! $this->is_allowed_filetype()) - { + if ( ! $this->is_allowed_filetype()) + { $this->set_error('upload_invalid_filetype'); return FALSE; - } + } // Is the file size within the allowed maximum? - if ( ! $this->is_allowed_filesize()) - { + if ( ! $this->is_allowed_filesize()) + { $this->set_error('upload_invalid_filesize'); - return FALSE; - } - + return FALSE; + } + // Are the image dimensions within the allowed size? // Note: This can fail if the server has an open_basdir restriction. - if ( ! $this->is_allowed_dimensions()) - { + if ( ! $this->is_allowed_dimensions()) + { $this->set_error('upload_invalid_dimensions'); - return FALSE; - } - + return FALSE; + } + // Sanitize the file name for security - $this->file_name = $this->clean_file_name($this->file_name); - + $this->file_name = $this->clean_file_name($this->file_name); + // Remove white spaces in the name - if ($this->remove_spaces == TRUE) - { - $this->file_name = preg_replace("/\s+/", "_", $this->file_name); - } - + if ($this->remove_spaces == TRUE) + { + $this->file_name = preg_replace("/\s+/", "_", $this->file_name); + } + /* * Validate the file name * This function appends an number onto the end of @@ -195,7 +195,7 @@ class CI_Upload { return FALSE; } } - + /* * Move the file to the final destination * To deal with different server configurations @@ -204,42 +204,42 @@ class CI_Upload { * reliably work in most environments */ if ( ! @copy($this->file_temp, $this->file_path.$this->file_name)) - { + { if ( ! @move_uploaded_file($this->file_temp, $this->file_path.$this->file_name)) { $this->set_error('upload_destination_error'); return FALSE; } - } + } /* * Run the file through the XSS hacking filter * This helps prevent malicious code from being - * embedded within a file. Scripts can easily + * embedded within a file. Scripts can easily * be disguised as images or other file types. */ if ($this->xss_clean == TRUE) { $this->do_xss_clean(); } - + /* * Set the finalized image dimensions * This sets the image width/height (assuming the * file was an image). We use this information * in the "data" function. */ - $this->set_image_properties($this->file_path.$this->file_name); - + $this->set_image_properties($this->file_path.$this->file_name); + return TRUE; - } + } // -------------------------------------------------------------------- /** - * Finalized Data Array + * Finalized Data Array * - * Returns an associative array containing all of the information + * Returns an associative array containing all of the information * related to the upload, allowing the developer easy access in one array. * * @access public @@ -267,24 +267,24 @@ class CI_Upload { // -------------------------------------------------------------------- /** - * Set Upload Path + * Set Upload Path * * @access public * @param string * @return void */ - function set_upload_path($path) - { + function set_upload_path($path) + { $this->file_path = $path; } // -------------------------------------------------------------------- /** - * Set the file name + * Set the file name * - * This function takes a filename/path as input and looks for the - * existence of a file with the same name. If found, it will append a + * This function takes a filename/path as input and looks for the + * existence of a file with the same name. If found, it will append a * number to the end of the filename to avoid overwriting a pre-existing file. * * @access public @@ -331,58 +331,58 @@ class CI_Upload { // -------------------------------------------------------------------- /** - * Set Maximum File Size + * Set Maximum File Size * * @access public * @param integer * @return void */ - function set_max_filesize($n) - { - $this->max_size = ( ! eregi("^[[:digit:]]+$", $n)) ? 0 : $n; - } + function set_max_filesize($n) + { + $this->max_size = ( ! eregi("^[[:digit:]]+$", $n)) ? 0 : $n; + } // -------------------------------------------------------------------- /** - * Set Maximum Image Width + * Set Maximum Image Width * * @access public * @param integer * @return void */ - function set_max_width($n) - { - $this->max_width = ( ! eregi("^[[:digit:]]+$", $n)) ? 0 : $n; - } + function set_max_width($n) + { + $this->max_width = ( ! eregi("^[[:digit:]]+$", $n)) ? 0 : $n; + } // -------------------------------------------------------------------- /** - * Set Maximum Image Height + * Set Maximum Image Height * * @access public * @param integer * @return void */ - function set_max_height($n) - { - $this->max_height = ( ! eregi("^[[:digit:]]+$", $n)) ? 0 : $n; - } + function set_max_height($n) + { + $this->max_height = ( ! eregi("^[[:digit:]]+$", $n)) ? 0 : $n; + } // -------------------------------------------------------------------- /** - * Set Allowed File Types + * Set Allowed File Types * * @access public * @param string * @return void */ - function set_allowed_types($types) - { - $this->allowed_types = explode('|', $types); - } + function set_allowed_types($types) + { + $this->allowed_types = explode('|', $types); + } // -------------------------------------------------------------------- @@ -395,26 +395,26 @@ class CI_Upload { * @param string * @return void */ - function set_image_properties($path = '') - { - if ( ! $this->is_image()) - { - return; - } - - if (function_exists('getimagesize')) - { - if (FALSE !== ($D = @getimagesize($path))) - { + function set_image_properties($path = '') + { + if ( ! $this->is_image()) + { + return; + } + + if (function_exists('getimagesize')) + { + if (FALSE !== ($D = @getimagesize($path))) + { $types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png'); - + $this->image_width = $D['0']; $this->image_height = $D['1']; $this->image_type = ( ! isset($types[$D['2']])) ? 'unknown' : $types[$D['2']]; $this->image_size_str = $D['3']; // string containing height and width } - } - } + } + } // -------------------------------------------------------------------- @@ -441,21 +441,21 @@ class CI_Upload { * @access public * @return bool */ - function is_image() - { - $img_mimes = array( - 'image/gif', - 'image/jpg', - 'image/jpe', - 'image/jpeg', - 'image/pjpeg', - 'image/png', - 'image/x-png' - ); - + function is_image() + { + $img_mimes = array( + 'image/gif', + 'image/jpg', + 'image/jpe', + 'image/jpeg', + 'image/pjpeg', + 'image/png', + 'image/x-png' + ); + return (in_array($this->file_type, $img_mimes, TRUE)) ? TRUE : FALSE; - } + } // -------------------------------------------------------------------- @@ -465,36 +465,36 @@ class CI_Upload { * @access public * @return bool */ - function is_allowed_filetype() - { - if (count($this->allowed_types) == 0) - { + function is_allowed_filetype() + { + if (count($this->allowed_types) == 0) + { $this->set_error('upload_no_file_types'); return FALSE; - } - - foreach ($this->allowed_types as $val) - { - $mime = $this->mimes_types(strtolower($val)); - - if (is_array($mime)) - { - if (in_array($this->file_type, $mime, TRUE)) - { - return TRUE; - } - } - else - { + } + + foreach ($this->allowed_types as $val) + { + $mime = $this->mimes_types(strtolower($val)); + + if (is_array($mime)) + { + if (in_array($this->file_type, $mime, TRUE)) + { + return TRUE; + } + } + else + { if ($mime == $this->file_type) { return TRUE; } - } - } - - return FALSE; - } + } + } + + return FALSE; + } // -------------------------------------------------------------------- @@ -504,17 +504,17 @@ class CI_Upload { * @access public * @return bool */ - function is_allowed_filesize() - { - if ($this->max_size != 0 AND $this->file_size > $this->max_size) - { - return FALSE; - } - else - { - return TRUE; - } - } + function is_allowed_filesize() + { + if ($this->max_size != 0 AND $this->file_size > $this->max_size) + { + return FALSE; + } + else + { + return TRUE; + } + } // -------------------------------------------------------------------- @@ -524,37 +524,37 @@ class CI_Upload { * @access public * @return bool */ - function is_allowed_dimensions() - { - if ( ! $this->is_image()) - { - return TRUE; - } - - if (function_exists('getimagesize')) - { - $D = @getimagesize($this->file_temp); - - if ($this->max_width > 0 AND $D['0'] > $this->max_width) - { - return FALSE; - } - - if ($this->max_height > 0 AND $D['1'] > $this->max_height) - { - return FALSE; - } - - return TRUE; - } - - return TRUE; - } + function is_allowed_dimensions() + { + if ( ! $this->is_image()) + { + return TRUE; + } + + if (function_exists('getimagesize')) + { + $D = @getimagesize($this->file_temp); + + if ($this->max_width > 0 AND $D['0'] > $this->max_width) + { + return FALSE; + } + + if ($this->max_height > 0 AND $D['1'] > $this->max_height) + { + return FALSE; + } + + return TRUE; + } + + return TRUE; + } // -------------------------------------------------------------------- /** - * Validate Upload Path + * Validate Upload Path * * Verifies that it is a valid upload path with proper permissions. * @@ -562,34 +562,34 @@ class CI_Upload { * @access public * @return bool */ - function validate_upload_path() - { - if ($this->file_path == '') - { + function validate_upload_path() + { + if ($this->file_path == '') + { $this->set_error('upload_no_filepath'); return FALSE; - } - + } + if (function_exists('realpath') AND @realpath($this->file_path) !== FALSE) { - $this->file_path = str_replace("\\", "/", realpath($this->file_path)); + $this->file_path = str_replace("\\", "/", realpath($this->file_path)); } - - if ( ! @is_dir($this->file_path)) - { + + if ( ! @is_dir($this->file_path)) + { $this->set_error('upload_no_filepath'); return FALSE; - } - - if ( ! is_writable($this->file_path)) - { + } + + if ( ! is_writable($this->file_path)) + { $this->set_error('upload_not_writable'); return FALSE; - } - + } + $this->file_path = preg_replace("/(.+?)\/*$/", "\\1/", $this->file_path); return TRUE; - } + } // -------------------------------------------------------------------- @@ -617,7 +617,7 @@ class CI_Upload { */ function clean_file_name($filename) { - $bad = array( + $bad = array( "", "'", @@ -636,21 +636,21 @@ class CI_Upload { "%253c", // < "%3e", // > "%0e", // > - "%28", // ( - "%29", // ) + "%28", // ( + "%29", // ) "%2528", // ( "%26", // & "%24", // $ "%3f", // ? "%3b", // ; "%3d" // = - ); - - foreach ($bad as $val) - { - $filename = str_replace($val, '', $filename); - } - + ); + + foreach ($bad as $val) + { + $filename = str_replace($val, '', $filename); + } + return $filename; } @@ -659,7 +659,7 @@ class CI_Upload { /** * Runs the file through the XSS clean function * - * This prevents people from embedding malicious code in their files. + * This prevents people from embedding malicious code in their files. * I'm not sure that it won't negatively affect certain files in unexpected ways, * but so far I haven't found that it causes trouble. * @@ -670,7 +670,7 @@ class CI_Upload { { $file = $this->file_path.$this->file_name; - if (filesize($file) == 0) + if (filesize($file) == 0) { return FALSE; } @@ -680,16 +680,16 @@ class CI_Upload { return FALSE; } - flock($fp, LOCK_EX); + flock($fp, LOCK_EX); - $data = fread($fp, filesize($file)); + $data = fread($fp, filesize($file)); $CI =& get_instance(); $data = $CI->input->xss_clean($data); - fwrite($fp, $data); - flock($fp, LOCK_UN); - fclose($fp); + fwrite($fp, $data); + flock($fp, LOCK_UN); + fclose($fp); } // -------------------------------------------------------------------- -- cgit v1.2.3-24-g4f1b