MIME Type arrays
Posted: Sun Jul 18, 2004 2:36 pm
I am trying to use an array of mime types to check when uploading files. The class I am using woks perfectly apart from checking against more than one mime type. The page calling the class is as follows
The $vtypes line is where I am adding the valid mime types. If I change it to or any other combination I get an error saying Only Array files may be uploaded. The actual upload class is this, I did not write all of this, most is from various other scripts from the net.How can I check more than one mime type or should the actual class be changed to accomadate this.
Code: Select all
$fu = new FileUpload();
$fu->max_filesize(5242880);
$fu->max_image_size(1500, 3000); // ($width, $height)
$vtypes = "image/pjpeg";
$fu->upload("imagefile", $vtypes, ".jpg");
$fu->save_file("uploads/");
if ($fu->error) {
echo $fu->error . "<br>";
} else {
// Successful upload!
print($fu->file['name'] . " was successfully uploaded!<br><br>\n");
// If it's an image, let's display the file
if(stristr($fu->file['type'], "image")) {
echo "<img src="uploads/" . $fu->file['name'] . "" border="0" alt=""><br><br>\n";
}
}Code: Select all
$vtypes = array('image/pjpeg' , 'image/gif' );Code: Select all
<?php
class FileUpload {
var $path;
var $acceptable_file_types;
var $error;
var $max_filesize;
var $max_image_width;
var $max_image_height;
//Class constructor method
function FileUpload() {
$this->error = '';
}
//Sets the maximum file size in bytes
function max_filesize($size) {
$this->max_filesize = (int) ($size);
}
//Sets the maximum image size. Only used if upload is an image file
function max_image_size($width, $height) {
$this->max_image_width = (int) ($width);
$this->max_image_height = (int) ($height);
}
//Checks if file is allowed and uploads to PHP's default directory
function upload($filename='', $accept_type='', $extension='') {
$this->acceptable_file_types = trim($accept_type); // used by error messages
if (!isset($_FILES) || !is_array($_FILES[$filename]) || !$_FILES[$filename]['name']) {
$this->error = $this->get_error(0);
$this->accepted = FALSE;
return FALSE;
}
// Copy PHP's global $_FILES array to a local array
$this->file = $_FILES[$filename];
$this->file['file'] = $filename;
// Initialize empty array elements
if (!isset($this->file['extention'])) $this->file['extention'] = "";
if (!isset($this->file['type'])) $this->file['type'] = "";
if (!isset($this->file['size'])) $this->file['size'] = "";
if (!isset($this->file['width'])) $this->file['width'] = "";
if (!isset($this->file['height'])) $this->file['height'] = "";
if (!isset($this->file['tmp_name'])) $this->file['tmp_name'] = "";
if (!isset($this->file['raw_name'])) $this->file['raw_name'] = "";
// test max size
if($this->max_filesize && ($this->file["size"] > $this->max_filesize)) {
$this->error = $this->get_error(1);
$this->accepted = FALSE;
return FALSE;
}
if(stristr($this->file["type"], "image")) {
/* IMAGES */
$image = getimagesize($this->file["tmp_name"]);
$this->file["width"] = $image[0];
$this->file["height"] = $image[1];
// test max image size
if(($this->max_image_width || $this->max_image_height) && (($this->file["width"] > $this->max_image_width) || ($this->file["height"] > $this->max_image_height))) {
$this->error = $this->get_error(2);
$this->accepted = FALSE;
return FALSE;
}
// Image Type is returned from getimagesize() function
switch($image[2]) {
case 1:
$this->file["extention"] = ".gif"; break;
case 2:
$this->file["extention"] = ".jpg"; break;
case 3:
$this->file["extention"] = ".png"; break;
case 4:
$this->file["extention"] = ".swf"; break;
case 5:
$this->file["extention"] = ".psd"; break;
case 6:
$this->file["extention"] = ".bmp"; break;
case 7:
$this->file["extention"] = ".tif"; break;
case 8:
$this->file["extention"] = ".tif"; break;
default:
$this->file["extention"] = $extention; break;
}
} elseif(!ereg("(\.)([a-z0-9]{3,5})$", $this->file["name"]) && !$extention) {
// Try and autmatically figure out the file type
// For more on mime-types: http://httpd.apache.org/docs/mod/mod_mime_magic.html
switch($this->file["type"]) {
case "text/plain":
$this->file["extention"] = ".txt"; break;
case "text/richtext":
$this->file["extention"] = ".txt"; break;
default:
break;
}
} else {
$this->file["extention"] = $extention;
}
// check to see if the file is of type specified
if($this->acceptable_file_types) {
if(trim($this->file["type"]) && (stristr($this->acceptable_file_types, $this->file["type"]) || stristr($this->file["type"], $this->acceptable_file_types)) ) {
$this->accepted = TRUE;
} else {
$this->accepted = FALSE;
$this->error = $this->get_error(3);
}
} else {
$this->accepted = TRUE;
}
return (bool) $this->accepted;
}
//Cleans the filename and copies file from temp location to $path
function save_file($path) {
if ($this->error) {
return false;
}
if (strlen($path)>0) {
if ($path[strlen($path)-1] != "/") {
$path = $path . "/";
}
}
$this->path = $path;
$copy = "";
$n = 1;
$success = false;
if($this->accepted) {
// Clean up file name (only lowercase letters, numbers and underscores)
$this->file["name"] = ereg_replace("[^a-z0-9._]", "", str_replace(" ", "_", str_replace("%20", "_", strtolower($this->file["name"]))));
// Clean up text file breaks
if(stristr($this->file["type"], "text")) {
$this->cleanup_text_file($this->file["tmp_name"]);
}
// get the raw name of the file (without its extenstion)
if(ereg("(\.)([a-z0-9]{2,5})$", $this->file["name"])) {
$pos = strrpos($this->file["name"], ".");
if(!$this->file["extention"]) {
$this->file["extention"] = substr($this->file["name"], $pos, strlen($this->file["name"]));
}
$this->file['raw_name'] = substr($this->file["name"], 0, $pos);
} else {
$this->file['raw_name'] = $this->file["name"];
if ($this->file["extention"]) {
$this->file["name"] = $this->file["name"] . $this->file["extention"];
}
}
if (move_uploaded_file($this->file["tmp_name"], $this->path . $this->file["name"])) {
$success = true;
} else {
$success = false;
$this->error = $this->get_error(5);
}
if(!$success) { unset($this->file['tmp_name']); }
return (bool) $success;
} else {
$this->error = $this->get_error(3);
return FALSE;
}
}
//Gets the error message if any
function get_error($error_code='') {
$error_message = array();
$error_code = (int) $error_code;
$error_message[0] = "No file was uploaded";
$error_message[1] = "Maximum file size exceeded. File may be no larger than " . $this->max_filesize/1000 . " KB (" . $this->max_filesize . " bytes).";
$error_message[2] = "Maximum image size exceeded. Image may be no more than " . $this->max_image_width . " x " . $this->max_image_height . " pixels.";
$error_message[3] = "Only " . str_replace("|", " or ", $this->acceptable_file_types) . " files may be uploaded.";
$error_message[4] = "File '" . $this->path . $this->file["name"] . "' already exists.";
$error_message[5] = "Permission denied. Unable to copy file to '" . $this->path . "'";
return $error_message[$error_code];
}
}
?>