[platal.git] / classes / plupload.php

<?php
/***************************************************************************
 *  Copyright (C) 2003-2008 Polytechnique.org                              *
 *  http://opensource.polytechnique.org/                                   *
 *                                                                         *
 *  This program is free software; you can redistribute it and/or modify   *
 *  it under the terms of the GNU General Public License as published by   *
 *  the Free Software Foundation; either version 2 of the License, or      *
 *  (at your option) any later version.                                    *
 *                                                                         *
 *  This program is distributed in the hope that it will be useful,        *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
 *  GNU General Public License for more details.                           *
 *                                                                         *
 *  You should have received a copy of the GNU General Public License      *
 *  along with this program; if not, write to the Free Software            *
 *  Foundation, Inc.,                                                      *
 *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
 ***************************************************************************/

/** Class to store per user and per category files
 */
class PlUpload
{
    private $forlife;
    private $category;
    private $file_id;

    private $filename;
    private $type;

    static public $lastError;

    /** For images
     */
    private $x;
    private $y;

    public function __construct($forlife, $category, $filename = null)
    {
        $this->file_id  = $filename;
        $this->category = $category;
        $this->forlife  = $forlife;
        $this->filename = $this->makeFilename($this->file_id);
        $this->checkContentType();
    }

    private function makeFilename($file_id)
    {
        global $globals;
        $filename = $globals->spoolroot . '/spool/uploads/temp/';
        if (!file_exists($filename)) {
            if (!mkdir($filename)) {
                trigger_error('can\'t create upload directory: ' . $filename, E_USER_ERROR);
            }
        }
        $filename .= $this->forlife . '--' . $this->category;
        if ($file_id) {
            $filename .= '--' . $file_id;
        }
        return $filename;
    }

    private function checkContentType()
    {
        if ($this->exists()) {
            $this->type = trim(mime_content_type($this->filename));
            if ($this->type == 'text/plain') { // Workaround a bug of php 5.2.0+etch10 (mime_content_type fallback is 'text/plain')
                $this->type = trim(exec("file -bi " . escapeshellarg($this->filename)));
            }
        }
    }

    public function upload(array &$file)
    {
        if (@$file['error']) {
            PlUpload::$lastError = 'Erreur de téléchargement de ' . $file['name'] . ' : ';
            switch ($file['error']) {
              case UPLOAD_ERR_INI_SIZE: case UPLOAD_ERR_FORM_SIZE:
                PlUpload::$lastError .= 'le fichier est trop gros (limite : ' . ini_get('upload_max_filesize') . ')';
                break;
              case UPLOAD_ERR_PARTIAL: case UPLOAD_ERR_NO_FILE:
                PlUpload::$lastError .= 'le fichier n\'a pas été transmis intégralement';
                break;
              default:
                PlUpload::$lastError .= 'erreur interne';
                break;
            }
            return false;
        }
        if (!is_uploaded_file($file['tmp_name'])) {
            return false;
        } else if (!move_uploaded_file($file['tmp_name'], $this->filename)) {
            return false;
        }
        $this->checkContentType();
        return true;
    }

    public function copyFrom($filename)
    {
        if (!copy($filename, $this->filename)) {
            return false;
        }
        $this->checkContentType();
        return true;
    }

    public function download($url)
    {
        if (!$url || @parse_url($url) === false) {
            trigger_error('malformed URL given', E_USER_NOTICE);
            return false;
        }
        $data = file_get_contents($url);
        if (!$data) {
            return false;
        }
        if (!file_put_contents($this->filename, $data)) {
            return false;
        }
        $this->checkContentType();
        return true;
    }

    static public function &get(array &$file, $forlife, $category, $uniq = false)
    {
        $upload = new PlUpload($forlife, $category, $uniq ? null : $file['name']);
        if (!$upload->upload($file)) {
            $upload = null;
        }
        return $upload;
    }

    public function rm()
    {
        @unlink($this->filename);
        @clearstatcache();
    }

    public function rename($fn)
    {
        if (!$this->file_id) {
            return false;
        }
        $filename = $this->makeFilename($fn);
        if (rename($this->filename)) {
            $this->filename = $filename;
            $this->file_id  = $fn;
            clearstatcache();
            return true;
        }
        return false;
    }

    public function exists()
    {
        return file_exists($this->filename);
    }

    static public function listRawFiles($forlife = '*', $category = '*', $uniq = false, $basename = false)
    {
        global $globals;
        $filename = $globals->spoolroot . '/spool/uploads/temp/';
        $filename .= $forlife . '--' . $category;
        if (!$uniq) {
            $filename .= '--*';
        }
        $files = glob($filename);
        if ($basename) {
            $files = array_map('basename', $files);
        }
        return $files;
    }

    static public function listFilenames($forlife = '*', $category = '*')
    {
        $files = PlUpload::listRawFiles($forlife, $category, false, true);
        foreach ($files as &$name) {
            list($forlife, $cat, $fn) = explode('--', $name, 3);
            $name = $fn;
        }
        return $files;
    }

    static public function &listFiles($forlife = '*', $category = '*', $uniq = false)
    {
        $res   = array();
        $files = PlUpload::listRawFiles($forlife, $category, $uniq, true);
        foreach ($files as $name) {
            list($forlife, $cat, $fn) = explode('--', $name, 3);
            $res[$fn] = new PlUpload($forlife, $cat, $fn);
        }
        return $res;
    }

    static public function clear($user = '*', $category = '*', $uniq = false)
    {
        $files = PlUpload::listRawFiles($user, $category, $uniq, false);
        array_map('unlink', $files);
    }

    public function contentType()
    {
        return $this->type;
    }

    public function isType($type, $subtype = null)
    {
        list($mytype, $mysubtype) = explode('/', $this->type);
        if ($mytype != $type || ($subtype && $mysubtype != $subtype)) {
            return false;
        }
        return true;
    }

    public function imageInfo()
    {
        static $map;
        if (!isset($map)) {
            $tmpmap = array (IMG_GIF => 'gif', IMG_JPG => 'jpeg', IMG_PNG => 'png', IMG_WBMP => 'bmp', IMG_XPM => 'xpm');
            $map = array();
            $supported = imagetypes();
            foreach ($tmpmap as $type=>$mime) {
                if ($supported & $type) {
                    $map[$type] = $mime;
                }
            }
        }
        $array = getimagesize($this->filename);
        $array[2] = @$map[$array[2]];
        if (!$array[2]) {
            list($image, $type) = explode('/', $array['mime']);
            $array[2] = $type;
        }
        if (!$array[2]) {
            trigger_error('unknown image type', E_USER_NOTICE);
            return null;
        }
        return $array;
    }

    public function resizeImage($max_x = -1, $max_y = -1, $min_x = 0, $min_y = 0, $maxsize = -1)
    {
        if (!$this->exists() || strpos($this->type, 'image/') !== 0) {
            trigger_error('not an image', E_USER_NOTICE);
            return false;
        }
        $image_infos = $this->imageInfo();
        if (!$image_infos) {
            trigger_error('invalid image', E_USER_NOTICE);
            return false;
        }
        list($this->x, $this->y, $mimetype) = $image_infos;
        if ($max_x == -1) {
            $max_x = $this->x;
        }
        if ($max_y == -1) {
            $max_y = $this->y;
        }
        if ($maxsize == -1) {
            $maxsize = filesize($this->filename);
        }
        if (filesize($this->filename) > $maxsize || $this->x > $max_x || $this->y > $max_y
                                                 || $this->x < $min_x || $this->y < $min_y) {
            $img = imagecreatefromstring(file_get_contents($this->filename));
            if (!$img) {
                trigger_error('too large image, can\'t be resized', E_USER_NOTICE);
                return false;
            }

            $nx = $this->x;
            $ny = $this->y;
            if ($nx > $max_x) {
                $ny = intval($ny*$max_x/$nx);
                $nx = $max_x;
            }
            if ($ny > $max_y) {
                $nx = intval($nx*$max_y/$ny);
                $ny = $max_y;
            }
            if ($nx < $min_x) {
                $ny = intval($ny*$min_x/$nx);
                $nx = $min_x;
            }
            if ($ny < $min_y) {
                $nx = intval($nx * $min_y/$ny);
                $ny = $min_y;
            }

            $comp = 90;
            do {
                $img2 = imagecreatetruecolor($nx, $ny);
                imagecopyresampled($img2, $img, 0, 0, 0, 0, $nx, $ny, $this->x, $this->y);
                imagejpeg($img2, $this->filename, $comp);
                $comp --;
                clearstatcache();
            } while (filesize($this->filename) > $maxsize && $comp > 0);
            $this->type = 'image/jpeg';
            $this->x    = $nx;
            $this->y    = $ny;
        }
        return true;
    }

    public function getContents()
    {
        if ($this->exists()) {
            return file_get_contents($this->filename);
        }
        return null;
    }
}
// vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
?>
Commit	Line	Data
abe7e055	1	<?php
abe7e055	2	/***************************************************************************
179afa7f	3	* Copyright (C) 2003-2008 Polytechnique.org *
abe7e055	4	* http://opensource.polytechnique.org/ *
	5	* *
	6	* This program is free software; you can redistribute it and/or modify *
	7	* it under the terms of the GNU General Public License as published by *
	8	* the Free Software Foundation; either version 2 of the License, or *
	9	* (at your option) any later version. *
	10	* *
	11	* This program is distributed in the hope that it will be useful, *
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
	14	* GNU General Public License for more details. *
	15	* *
	16	* You should have received a copy of the GNU General Public License *
	17	* along with this program; if not, write to the Free Software *
	18	* Foundation, Inc., *
	19	* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
	20	***************************************************************************/
	21
	22	/** Class to store per user and per category files
	23	*/
	24	class PlUpload
	25	{
	26	private $forlife;
	27	private $category;
	28	private $file_id;
	29
	30	private $filename;
	31	private $type;
	32
380d35f4 FB	33	static public $lastError;
380d35f4 FB	34
abe7e055	35	/** For images
	36	*/
	37	private $x;
	38	private $y;
	39
	40	public function __construct($forlife, $category, $filename = null)
	41	{
	42	$this->file_id = $filename;
	43	$this->category = $category;
	44	$this->forlife = $forlife;
	45	$this->filename = $this->makeFilename($this->file_id);
	46	$this->checkContentType();
	47	}
	48
	49	private function makeFilename($file_id)
	50	{
	51	global $globals;
	52	$filename = $globals->spoolroot . '/spool/uploads/temp/';
	53	if (!file_exists($filename)) {
	54	if (!mkdir($filename)) {
	55	trigger_error('can\'t create upload directory: ' . $filename, E_USER_ERROR);
	56	}
	57	}
fac5d9eb	58	$filename .= $this->forlife . '--' . $this->category;
abe7e055	59	if ($file_id) {
fac5d9eb	60	$filename .= '--' . $file_id;
abe7e055	61	}
	62	return $filename;
	63	}
	64
	65	private function checkContentType()
	66	{
	67	if ($this->exists()) {
	68	$this->type = trim(mime_content_type($this->filename));
fa3300aa FB	69	if ($this->type == 'text/plain') { // Workaround a bug of php 5.2.0+etch10 (mime_content_type fallback is 'text/plain')
	70	$this->type = trim(exec("file -bi " . escapeshellarg($this->filename)));
	71	}
abe7e055	72	}
	73	}
	74
	75	public function upload(array &$file)
	76	{
380d35f4 FB	77	if (@$file['error']) {
	78	PlUpload::$lastError = 'Erreur de téléchargement de ' . $file['name'] . ' : ';
	79	switch ($file['error']) {
	80	case UPLOAD_ERR_INI_SIZE: case UPLOAD_ERR_FORM_SIZE:
	81	PlUpload::$lastError .= 'le fichier est trop gros (limite : ' . ini_get('upload_max_filesize') . ')';
	82	break;
	83	case UPLOAD_ERR_PARTIAL: case UPLOAD_ERR_NO_FILE:
	84	PlUpload::$lastError .= 'le fichier n\'a pas été transmis intégralement';
	85	break;
	86	default:
	87	PlUpload::$lastError .= 'erreur interne';
	88	break;
	89	}
	90	return false;
	91	}
abe7e055	92	if (!is_uploaded_file($file['tmp_name'])) {
	93	return false;
	94	} else if (!move_uploaded_file($file['tmp_name'], $this->filename)) {
	95	return false;
	96	}
eaf30d86	97	$this->checkContentType();
abe7e055	98	return true;
	99	}
	100
	101	public function copyFrom($filename)
	102	{
	103	if (!copy($filename, $this->filename)) {
	104	return false;
	105	}
	106	$this->checkContentType();
	107	return true;
	108	}
	109
	110	public function download($url)
	111	{
02838718	112	if (!$url \|\| @parse_url($url) === false) {
	113	trigger_error('malformed URL given', E_USER_NOTICE);
	114	return false;
	115	}
abe7e055	116	$data = file_get_contents($url);
	117	if (!$data) {
	118	return false;
	119	}
	120	if (!file_put_contents($this->filename, $data)) {
	121	return false;
	122	}
	123	$this->checkContentType();
	124	return true;
	125	}
	126
	127	static public function &get(array &$file, $forlife, $category, $uniq = false)
	128	{
	129	$upload = new PlUpload($forlife, $category, $uniq ? null : $file['name']);
	130	if (!$upload->upload($file)) {
	131	$upload = null;
	132	}
	133	return $upload;
	134	}
	135
	136	public function rm()
	137	{
	138	@unlink($this->filename);
f62bd784	139	@clearstatcache();
abe7e055	140	}
	141
	142	public function rename($fn)
	143	{
	144	if (!$this->file_id) {
	145	return false;
	146	}
	147	$filename = $this->makeFilename($fn);
	148	if (rename($this->filename)) {
	149	$this->filename = $filename;
	150	$this->file_id = $fn;
	151	clearstatcache();
	152	return true;
	153	}
	154	return false;
	155	}
	156
	157	public function exists()
	158	{
	159	return file_exists($this->filename);
	160	}
	161
da419622	162	static public function listRawFiles($forlife = '', $category = '', $uniq = false, $basename = false)
abe7e055	163	{
	164	global $globals;
	165	$filename = $globals->spoolroot . '/spool/uploads/temp/';
fac5d9eb	166	$filename .= $forlife . '--' . $category;
da419622	167	if (!$uniq) {
fac5d9eb	168	$filename .= '--*';
da419622	169	}
abe7e055	170	$files = glob($filename);
abe7e055	171	if ($basename) {
da419622	172	$files = array_map('basename', $files);
	173	}
	174	return $files;
	175	}
	176
	177	static public function listFilenames($forlife = '', $category = '')
	178	{
	179	$files = PlUpload::listRawFiles($forlife, $category, false, true);
	180	foreach ($files as &$name) {
fac5d9eb	181	list($forlife, $cat, $fn) = explode('--', $name, 3);
da419622	182	$name = $fn;
abe7e055	183	}
	184	return $files;
	185	}
	186
da419622	187	static public function &listFiles($forlife = '', $category = '', $uniq = false)
	188	{
	189	$res = array();
	190	$files = PlUpload::listRawFiles($forlife, $category, $uniq, true);
	191	foreach ($files as $name) {
fac5d9eb	192	list($forlife, $cat, $fn) = explode('--', $name, 3);
da419622	193	$res[$fn] = new PlUpload($forlife, $cat, $fn);
	194	}
	195	return $res;
	196	}
	197
	198	static public function clear($user = '', $category = '', $uniq = false)
abe7e055	199	{
da419622	200	$files = PlUpload::listRawFiles($user, $category, $uniq, false);
da419622	201	array_map('unlink', $files);
abe7e055	202	}
	203
	204	public function contentType()
	205	{
	206	return $this->type;
	207	}
	208
02838718	209	public function isType($type, $subtype = null)
	210	{
	211	list($mytype, $mysubtype) = explode('/', $this->type);
	212	if ($mytype != $type \|\| ($subtype && $mysubtype != $subtype)) {
	213	return false;
	214	}
	215	return true;
	216	}
	217
abe7e055	218	public function imageInfo()
abe7e055	219	{
02838718	220	static $map;
02838718	221	if (!isset($map)) {
9e1b4320	222	$tmpmap = array (IMG_GIF => 'gif', IMG_JPG => 'jpeg', IMG_PNG => 'png', IMG_WBMP => 'bmp', IMG_XPM => 'xpm');
	223	$map = array();
	224	$supported = imagetypes();
	225	foreach ($tmpmap as $type=>$mime) {
	226	if ($supported & $type) {
	227	$map[$type] = $mime;
	228	}
	229	}
02838718	230	}
	231	$array = getimagesize($this->filename);
	232	$array[2] = @$map[$array[2]];
	233	if (!$array[2]) {
ff95a302 FB	234	list($image, $type) = explode('/', $array['mime']);
	235	$array[2] = $type;
	236	}
	237	if (!$array[2]) {
02838718	238	trigger_error('unknown image type', E_USER_NOTICE);
	239	return null;
	240	}
	241	return $array;
abe7e055	242	}
	243
	244	public function resizeImage($max_x = -1, $max_y = -1, $min_x = 0, $min_y = 0, $maxsize = -1)
	245	{
	246	if (!$this->exists() \|\| strpos($this->type, 'image/') !== 0) {
	247	trigger_error('not an image', E_USER_NOTICE);
	248	return false;
	249	}
	250	$image_infos = $this->imageInfo();
02838718	251	if (!$image_infos) {
abe7e055	252	trigger_error('invalid image', E_USER_NOTICE);
	253	return false;
	254	}
	255	list($this->x, $this->y, $mimetype) = $image_infos;
abe7e055	256	if ($max_x == -1) {
	257	$max_x = $this->x;
	258	}
	259	if ($max_y == -1) {
	260	$max_y = $this->y;
	261	}
	262	if ($maxsize == -1) {
	263	$maxsize = filesize($this->filename);
	264	}
	265	if (filesize($this->filename) > $maxsize \|\| $this->x > $max_x \|\| $this->y > $max_y
	266	\|\| $this->x < $min_x \|\| $this->y < $min_y) {
	267	$img = imagecreatefromstring(file_get_contents($this->filename));
	268	if (!$img) {
	269	trigger_error('too large image, can\'t be resized', E_USER_NOTICE);
	270	return false;
	271	}
	272
	273	$nx = $this->x;
	274	$ny = $this->y;
	275	if ($nx > $max_x) {
	276	$ny = intval($ny*$max_x/$nx);
	277	$nx = $max_x;
	278	}
	279	if ($ny > $max_y) {
	280	$nx = intval($nx*$max_y/$ny);
	281	$ny = $max_y;
	282	}
	283	if ($nx < $min_x) {
	284	$ny = intval($ny*$min_x/$nx);
	285	$nx = $min_x;
	286	}
	287	if ($ny < $min_y) {
	288	$nx = intval($nx * $min_y/$ny);
	289	$ny = $min_y;
	290	}
	291
	292	$comp = 90;
	293	do {
	294	$img2 = imagecreatetruecolor($nx, $ny);
	295	imagecopyresampled($img2, $img, 0, 0, 0, 0, $nx, $ny, $this->x, $this->y);
	296	imagejpeg($img2, $this->filename, $comp);
	297	$comp --;
	298	clearstatcache();
	299	} while (filesize($this->filename) > $maxsize && $comp > 0);
	300	$this->type = 'image/jpeg';
	301	$this->x = $nx;
	302	$this->y = $ny;
	303	}
	304	return true;
	305	}
	306
	307	public function getContents()
	308	{
	309	if ($this->exists()) {
	310	return file_get_contents($this->filename);
	311	}
	312	return null;
	313	}
	314	}
	315	// vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
	316	?>