+++ /dev/null
-<?php\r
-/*==============================================================\r
- Photo Album\r
- ==============================================================\r
- Copyright (c) 2006 by Dylan Cheon & Kelvin Wong\r
- Institute for Assistive Technology / University of Victoria\r
- http://www.canassist.ca/ \r
- \r
- This program is free software. You can redistribute it and/or\r
- modify it under the terms of the GNU General Public License \r
- as published by the Free Software Foundation. \r
- ==============================================================\r
- */\r
-// $Id:\r
-\r
-/**\r
- * @desc This file handles all the image upload operations\r
- * @author Dylan Cheon & Kelvin Wong\r
- * @copyright 2006, Institute for Assistive Technology / University of Victoria \r
- * @link http://www.canassist.ca/ \r
- * @license GNU\r
- */\r
-\r
-require_once(PATH.'classes/phpThumb_1.7.2/phpthumb.class.php');\r
-require_once(PATH.'classes/phpThumb_1.7.2/phpthumb.functions.php');\r
-require_once(PATH.'classes/pa.class.php');\r
-require_once(PATH.'define.php');\r
-\r
-/**\r
- * @desc image upload class to upload an image\r
- * @see class Pa\r
- */\r
-\r
-class IMAGE_UPLOAD extends PA{\r
- var $name='';\r
- var $file_size=0;\r
- var $file_tmp_src='';\r
- var $file_type='';\r
- var $thumb_image_name='';\r
- var $view_image_name='';\r
- var $image_copy_required=true;\r
- var $user_input_error=0;\r
- var $user_input_array=Array();\r
- var $temp_folder_path='';\r
- \r
- /**\r
- * @desc image upload constructor\r
- * @param Array $file_array array which contains the image file information (name, size, tmp_src, etc)\r
- * @param String $temp_folder_path temp folder path string to copy the image file in.\r
- */\r
- function IMAGE_UPLOAD($file_array, $temp_folder_path){\r
- parent::init();\r
- $this->setVariable('temp_folder_path', $temp_folder_path);\r
- $this->checkImageFile($file_array);\r
- if (($this->getVariable('user_input_error')==0) && ($this->getVariable('image_copy_required')==true)){ //no error, so process image copy operation\r
- $this->setVariable('name', $file_array['name']);\r
- $this->copyViewImage();\r
- $this->copyThumbImage();\r
- } \r
- }\r
- \r
- /**\r
- * @desc This function checks the given file array is properly set up\r
- * @param Array $file file array\r
- */\r
- function checkImageFile(&$file){\r
- $this->checkImageEmpty($file['name']);\r
- $this->checkValidType($file['type']);\r
- $this->checkValidNameLength($file['name']);\r
- $this->checkValidEscape($file['name']);\r
- $this->checkValidSize($file['size']); \r
- $this->setVariable('file_tmp_src', $file['tmp_name']);\r
- \r
- }\r
- \r
- /**\r
- * @desc This function checks whether the image is submitted empty or not\r
- * @param String $file image name\r
- */\r
- function checkImageEmpty(&$file){\r
- if (empty($file)){\r
- $this->storeUserError("file_empty");\r
- }\r
- }\r
- \r
- /**\r
- * @desc This function stores the user input error \r
- * @param String $string error string\r
- */\r
- function storeUserError($string){\r
- $error_count=$this->getVariable('user_input_error');\r
- $error_array=&$this->user_input_array;\r
- $error_array[$error_count]=&$string;\r
- $this->setVariable('user_input_error', $error_count+1);\r
- }\r
- \r
- /**\r
- * @desc This function checks whether the image size is valid\r
- * @param int $file image size\r
- */\r
- function checkValidSize($file){\r
- $max_size=get_max_file_size(PA::getVariable('course_id'));\r
- if ($max_size==-1){\r
- global $_config;\r
- $max_size=$_config['max_file_size'];\r
- } \r
- if ($file > $max_size){\r
- $this->storeUserError('file_size');\r
- } else {\r
- $this->setVariable('file_size', $file);\r
- }\r
- }\r
- \r
- /**\r
- * @desc This function checks whether the image file name uses invalid escape characters or not\r
- * @param String $file image file name\r
- */\r
- function checkValidEscape(&$file){\r
- if (ereg(INVALID_ESCAPE, $file)){\r
- $this->storeUserError('file_escape');\r
- }\r
- } \r
- \r
- /**\r
- * @desc This function checks whether the image file name length is valid\r
- * @param String $file image name\r
- */\r
- function checkValidNameLength(&$file){\r
- if (count($file)>MAX_FILENAME_LENGTH){\r
- $this->storeUserError('file_length');\r
- }\r
- }\r
- \r
- /**\r
- * @desc This function checks whether the image type is valid\r
- * @param String $type image type string\r
- */\r
- function checkValidType($type){\r
- global $IMAGE_TYPE;\r
- if (in_array($type, $IMAGE_TYPE)){\r
- $this->setVariable('file_type', $type);\r
- } else {\r
- $this->storeUserError('file_type');\r
- }\r
- }\r
- \r
- /**\r
- * @desc This function sets the string value for the class object\r
- * @param String $string string name to be set\r
- * @param mixed $value string value \r
- */\r
- function setVariable($string, $value){\r
- switch ($string){\r
- case 'mode_edit':\r
- case 'image_copy_required':\r
- if (is_bool($value)){\r
- $this->{$string}=$value;\r
- } else {\r
- parent::storeError("string ".$string." is not boolean");\r
- }\r
- break;\r
- case 'file_type':\r
- case 'file_tmp_src':\r
- case 'name':\r
- case 'thumb_image_name':\r
- case 'view_image_name':\r
- case 'temp_folder_path':\r
- if (is_string($value)){\r
- $this->{$string}=$value;\r
- } else {\r
- parent::storeError("string ".$string." is not string");\r
- } \r
- break;\r
- case 'user_input_error':\r
- if (is_int($value)){\r
- $this->{$string}=$value;\r
- } else {\r
- parent::storeError("string ".$string." is not int");\r
- }\r
- break;\r
- }\r
- }\r
- \r
- /**\r
- * @desc This function creates a full-sized image of the image file and copies it to the temp folder\r
- */\r
- function copyViewImage(){\r
- $temp_folder_path=$this->getVariable('temp_folder_path');\r
- $view_image_name=modify_image_name($temp_folder_path, $this->getVariable('name'));\r
- $this->setVariable('view_image_name', $view_image_name); \r
- image_to_this_location($view_image_name, $this->getVariable('file_tmp_src'), $temp_folder_path);\r
- $thumb=new phpThumb();\r
- $view_image_path=AT_CONTENT_DIR.$temp_folder_path.$view_image_name;\r
- $thumb->setSourceFilename($view_image_path);\r
- $size=getimagesize($view_image_path);\r
- /* set size for view image */\r
- if ($size[0]>MAX_IMAGE_WIDTH){\r
- $thumb->w=MAX_IMAGE_WIDTH;\r
- }\r
- if (defined(MAX_IMAGE_HEIGHT) && $size[1]> MAX_IMAGE_HEIGHT){\r
- $thumb->h=MAX_IMAGE_HEIGHT;\r
- }\r
- \r
- $thumb->iar='l';\r
- $thumb->config_output_format='jpeg';\r
- \r
- /* generate for view image */ \r
- if ($thumb->GenerateThumbnail()){\r
- if ($view_image_path){\r
- if (!$thumb->RenderToFile($view_image_path)){\r
- parent::storeError("render operation failed for view image"); \r
- }\r
- } else {\r
- parent::storeError("view image path does not exist");\r
- }\r
- } else {\r
- parent::storeError("View generateThumbnail operation is failed");\r
- }\r
- }\r
- \r
- /**\r
- * @desc This function creates a thumbnail image of the image file and stores it in the temp folder\r
- */ \r
- function copyThumbImage(){\r
- $temp_folder_path=$this->getVariable('temp_folder_path');\r
- $thumb_image_name=insert_into_image_name($this->getVariable('view_image_name'), THUMB_EXT);\r
- $thumb_image_name=modify_image_name($temp_folder_path, $thumb_image_name);\r
- $this->setVariable('thumb_image_name', $thumb_image_name);\r
- $thumb=new phpThumb();\r
- $view_image_path=AT_CONTENT_DIR.$temp_folder_path.$this->getVariable('view_image_name');\r
- $thumb->setSourceFilename($view_image_path);\r
- $size=getimagesize($view_image_path);\r
- /* set size for thumb image */\r
- $thumb->iar='l';\r
- $thumb->config_output_format='jpeg';\r
- \r
- /* set size for thumb image */\r
- $thumb->h=THUMB_IMAGE_HEIGHT;\r
- $thumb->w=THUMB_IMAGE_WIDTH;\r
- \r
- /* generate for thumb image */ \r
- $thumb_image_path=AT_CONTENT_DIR.$temp_folder_path.$thumb_image_name;\r
- if ($thumb->GenerateThumbnail()){\r
- if ($view_image_path){\r
- if (!$thumb->RenderToFile($thumb_image_path)){\r
- parent::storeError("render operation failed for thumb image"); \r
- }\r
- } else {\r
- parent::storeError("view image path does not exist");\r
- }\r
- } else {\r
- parent::storeError("Thumb generateThumbnail operation is failed");\r
- }\r
- }\r
-} \r
-?>\r
projects / atutor.git / blobdiff