Podgląd pliku: / books / includes / okladki.php
<?php
/*****************************************************
* System biblioteczny *
*****************************************************
* Wersja: 1.3 Stable *
* Data: 17.06.2012 (15:07) *
* Autor: Jacek Kowalski (http://jacekk.info) *
* *
* Utwor rozprowadzany na licencji *
* http://creativecommons.org/licenses/by-nc-sa/2.5/ *
*****************************************************/
class okladki {
static function znajdz($KOD, $ISBN, $dir = 'covers') {
if(strlen($KOD)<=8 && ctype_digit($KOD)) {
validate::KOD($KOD);
if(file_exists('./'.$dir.'/own/'.$KOD)) {
return './'.$dir.'/own/'.$KOD;
}
}
if(strlen($ISBN)==13) {
validate::EAN($ISBN);
if(substr($ISBN, 0, 3)=='978') {
$ISBN10 = convert::ISBN13_to_ISBN10($ISBN);
}
else
{
$ISBN10 = $ISBN;
}
if(file_exists('./'.$dir.'/own/'.$ISBN)) {
return './'.$dir.'/own/'.$ISBN;
}
if(self::librarything($ISBN, $dir)!==FALSE) {
return './'.$dir.'/'.$ISBN;
}
}
return FALSE;
}
static function librarything($ISBN, $dir = 'covers') {
if(!function_exists('curl_init') || !ksiazki::$LT_API) {
return FALSE;
}
// Okładkę już mamy
if(file_exists('./'.$dir.'/'.$ISBN)) {
if(filesize('./'.$dir.'/'.$ISBN)>0) {
return NULL;
}
// Negatywne cache'owanie
if(filesize('./'.$dir.'/'.$ISBN)==0 AND filemtime('./'.$dir.'/'.$ISBN)+(30*24*60*60) > time()) {
return FALSE;
}
}
$get = 'http://www.librarything.com/devkey/'.ksiazki::$LT_API.'/'.($dir=='covers_big' ? 'large' : 'small').'/isbn/'.$ISBN10;
$curl = curl_init($get);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
$img = @curl_exec($curl);
$code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
$type = curl_getinfo($curl, CURLINFO_CONTENT_TYPE);
if($code != 200 || substr($type, 0, 6) != 'image/' || $img == FALSE || strlen($img) < 100) {
// Negatywne cache'owanie
touch('./'.$dir.'/'.$ISBN);
return FALSE;
}
else
{
file_put_contents('./'.$dir.'/'.$ISBN, $img);
return TRUE;
}
}
static function przenies($SKOD, $SISBN, $KOD, $ISBN) {
foreach(array('covers', 'covers_big') as $where) {
$nowaokl = self::znajdz($KOD, $ISBN, $where);
if(!$nowaokl) {
$staraokl = self::znajdz($SKOD, $SISBN, $where);
if(!$staraokl) {
continue;
}
if($nowaokl == $staraokl) {
continue;
}
if(!empty($ISBN)) {
if(strpos($staraokl, '/own/')) {
rename($staraokl, './'.$where.'/own/'.$ISBN);
}
else
{
rename($staraokl, './'.$where.'/'.$ISBN);
}
}
else
{
rename($staraokl, './'.$where.'/own/'.$KOD);
}
}
}
if($KOD != $SKOD) {
self::usun($SKOD, '');
}
}
static function usun($KOD, $ISBN) {
if($ISBN) {
@unlink('./covers/'.$ISBN);
@unlink('./covers_big/'.$ISBN);
@unlink('./covers/own/'.$ISBN);
@unlink('./covers_big/own/'.$ISBN);
}
else
{
@unlink('./covers/own/'.$KOD);
@unlink('./covers_big/own/'.$KOD);
}
}
static function upload($files, $KOD, $ISBN) {
if($ISBN) {
$DANE = $ISBN;
}
else
{
$DANE = $KOD;
}
if(is_uploaded_file($files['tmp_name'])) {
okladki::skaluj($files['tmp_name'], 500, 500, './covers_big/own/'.$DANE);
okladki::skaluj($files['tmp_name'], 53, 80, './covers/own/'.$DANE);
if(file_exists('./covers/'.$DANE)) {
unlink('./covers/'.$DANE);
}
}
}
static function skaluj($file, $max_width, $max_height, $outfile) {
list($width, $height, $type) = getimagesize($file);
switch($type) {
case IMAGETYPE_JPEG:
$image = imagecreatefromjpeg($file);
break;
case IMAGETYPE_PNG:
$image = imagecreatefrompng($file);
break;
case IMAGETYPE_GIF:
$image = imagecreatefromgif($file);
break;
case IMAGETYPE_XBM:
$image = imagecreatefromxpm($file);
break;
default:
error::add('Nieznany format obrazka: '.$type.'!');
return FALSE;
break;
}
if ($width > $max_width OR $height > $max_height) {
if($width*$max_height > $height*$max_width) {
$new_width = $max_width;
$new_height = round( ($new_width / $width) * $height );
}
else
{
$new_height = $max_height;
$new_width = round( ($new_height / $height) * $width );
}
$new_image = imagecreatetruecolor($new_width, $new_height);
imagecopyresampled($new_image, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
return imagejpeg($new_image, $outfile, 100);
}
else
{
return imagejpeg($image, $outfile, 100);
}
}
}
?>
Browse Code © 2010 by Jacek Kowalski