friendica/mod/photos.php

<?php

require_once('Photo.php');

function photos_init(&$a) {

	if($a->argc > 1) {
		$nick = $a->argv[1];
		$r = q("SELECT * FROM `user` WHERE `nickname` = '%s' LIMIT 1",
			dbesc($nick)
		);

		if(! count($r))
			return;

		$a->data['user'] = $r[0];

		$albums = q("SELECT distinct(`album`) AS `album` FROM `photo` WHERE `uid` = %d",
			intval($a->data['user']['uid'])
		);

		if(count($albums)) {
			$a->data['albums'] = $albums;

			$o .= '<h4><a href="' . $a->get_baseurl() . '/profile/' . $a->data['user']['nickname'] . '">' . $a->data['user']['username'] . '</a></h4>';
			$o .= '<h4>' . '<a href="' . $a->get_baseurl() . '/photos/' . $a->data['user']['nickname'] . '">' . t('Photo Albums') . '</a></h4>';
		
			$o .= '<ul>';
			foreach($albums as $album) {
				if((! strlen($album['album'])) || ($album['album'] == t('Contact Photos')))
					continue;
				$o .= '<li>' . '<a href="photos/' . $a->argv[1] . '/album/' . bin2hex($album['album']) . '" />' . $album['album'] . '</a></li>'; 
			}
			$o .= '</ul>';
		}
		$a->page['aside'] .= $o;
	}


}




function photos_post(&$a) {


        if(! local_user()) {
                notice( t('Permission denied.') . EOL );
                killme();
        }

	$r = q("SELECT * FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid` WHERE `user`.`uid` = %d AND `self` = 1 LIMIT 1",
		intval($_SESSION['uid'])
	);

	$contact_record = $r[0];	

	if(! x($_FILES,'userfile'))
		killme();

	if($_POST['partitionCount'])
		$java_upload = true;
	else
		$java_upload = false;

	$album =  notags(trim($_POST['album']));
	$newalbum = notags(trim($_POST['newalbum']));

	if(! strlen($album)) {
		if(strlen($newalbum))
			$album = $newalbum;
		else
			$album = datetime_convert('UTC',date_default_timezone_get(),'now', 'Y');
	}

	$src      = $_FILES['userfile']['tmp_name'];
	$filename = basename($_FILES['userfile']['name']);
	$filesize = intval($_FILES['userfile']['size']);

	$imagedata = @file_get_contents($src);
	$ph = new Photo($imagedata);

	if(! ($image = $ph->getImage())) {
		notice( t('Unable to process image.') . EOL );
		@unlink($src);
		killme();
	}

	@unlink($src);

	$width = $ph->getWidth();
	$height = $ph->getHeight();

	$smallest = 0;

	$photo_hash = hash('md5',uniqid(mt_rand(),true));
	
	$r = $ph->store($_SESSION['uid'], 0, $photo_hash, $filename, $album, 0 );

	if(! $r) {
		notice( t('Image upload failed.') . EOL );
		killme();
	}

	if($width > 640 || $height > 640) {
		$ph->scaleImage(640);
		$ph->store($_SESSION['uid'], 0, $photo_hash, $filename, $album, 1 );
		$smallest = 1;
	}

	if($width > 320 || $height > 320) {
		$ph->scaleImage(320);
		$ph->store($_SESSION['uid'], 0, $photo_hash, $filename, $album, 2 );
		$smallest = 2;
	}
	
	$basename = basename($filename);

	// Create item container

	$body = '[url=' . $a->get_baseurl() . '/photos/' . $contact_record['nickname'] . '/image/' . $photo_hash . ']' 
		. '[img]' . $a->get_baseurl() . "/photo/{$photo_hash}-{$smallest}.jpg" . '[/img]' 
		. '[/url]';

			do {
			$dups = false;
			$item_hash = random_string();

			$uri = "urn:X-dfrn:" . $a->get_hostname() . ':' . $profile_uid . ':' . $item_hash;

			$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
			dbesc($uri));
			if(count($r))
				$dups = true;
		} while($dups == true);


		$r = q("INSERT INTO `item` (`uid`, `type`, `resource-id`, `contact-id`,`owner-name`,`owner-link`,`owner-avatar`, `created`,
			`edited`, `uri`, `parent-uri`, `title`, `body`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`)
			VALUES( %d, '%s', '%s', %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )",
			intval($_SESSION['uid']),
			dbesc('photo'),
			dbesc($photo_hash),			
			intval($contact_record['id']),
			dbesc($contact_record['name']),
			dbesc($contact_record['url']),
			dbesc($contact_record['thumb']),
			datetime_convert(),
			datetime_convert(),
			dbesc($uri),
			dbesc($uri),
			dbesc($title),
			dbesc($body),
			dbesc($str_contact_allow),
			dbesc($str_group_allow),
			dbesc($str_contact_deny),
			dbesc($str_group_deny)

		);
		if($r) {

			$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
				dbesc($uri)
			);
			if(count($r))
				q("UPDATE `item` SET `parent` = %d, `last-child` = 1 WHERE `id` = %d LIMIT 1",
				intval($r[0]['id']),
				intval($r[0]['id'])
			);
	
		}

	// if album has no featured photo, promote one.


	if(! $java_upload) {
		goaway($a->get_baseurl() . '/' . $_SESSION['photo_return']);
		return; // NOTREACHED
	}

	killme();
	return; // NOTREACHED

}



function photos_content(&$a) {

	// URLs:
	// photos/name
	// photos/name/upload
	// photos/name/album/xxxxx
	// photos/name/album/xxxxx/edit
	// photos/name/album/xxxxx/drop
	// photos/name/image/xxxxx
	// photos/name/image/xxxxx/edit
	// photos/name/image/xxxxx/drop

	if(! x($a->data,'user')) {
		notice( t('No photos selected') . EOL );
		return;
	}

	$_SESSION['photo_return'] = $a->cmd;

	//
	// Parse arguments 
	//

	if($a->argc > 3) {
		$datatype = $a->argv[2];
		$datum = $a->argv[3];
	}
	elseif(($a->argc > 2) && ($a->argv[2] == 'upload'))
		$datatype = 'upload';
	else
		$datatype = 'summary';

	if($a->argc > 4)
		$cmd = $a->argv[4];
	else
		$cmd = 'view';

	//
	// Setup permissions structures
	//

	$owner_uid = $a->data['user']['uid'];

	if(remote_user()) {
		$contact_id = $_SESSION['visitor_id'];
		$groups = init_groups_visitor($contact_id);
	}

	// default permissions - anonymous user

	$sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' AND `deny_cid` = '' AND `deny_gid` = '' ";

	// Profile owner - everything is visible

	if(local_user() && ($_SESSION['uid'] == $owner_uid)) {
		$sql_extra = ''; 	
	}
	elseif(remote_user()) {
		// authenticated visitor - here lie dragons
		$gs = '<<>>'; // should be impossible to match
		if(count($groups)) {
			foreach($groups as $g)
				$gs .= '|<' . intval($g) . '>';
		} 
		$sql_extra = sprintf(
			" AND ( `allow_cid` = '' OR `allow_cid` REGEXP '<%d>' ) 
			  AND ( `deny_cid`  = '' OR  NOT `deny_cid` REGEXP '<%d>' ) 
			  AND ( `allow_gid` = '' OR `allow_gid` REGEXP '%s' )
			  AND ( `deny_gid`  = '' OR NOT `deny_gid` REGEXP '%s') ",

			intval($_SESSION['visitor_id']),
			intval($_SESSION['visitor_id']),
			dbesc($gs),
			dbesc($gs)
		);
	}

	//
	// dispatch request
	//


	if($datatype == 'upload') {
		if( ! (local_user() && ($_SESSION['uid'] == $a->data['user']['uid']))) {
			notice( t('Permission denied.'));
			return;
		}
		$albumselect = '<select id="photos-upload-album-select" name="album" size="4">';

		$albumselect .= '<option value="" selected="selected" >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</option>';
		if(count($a->data['albums'])) {
			foreach($a->data['albums'] as $album) {
				if(($album['album'] == '') || ($album['album'] == t('Contact Photos')))
					continue;
				$albumselect .= '<option value="' . $album['album'] . '">' . $album['album'] . '</option>';
			}
		}
		$albumselect .= '</select>';
		$tpl = file_get_contents('view/photos_upload.tpl');
		$o .= replace_macros($tpl,array(
			'$pagename' => t('Upload Photos'),
			'$sessid' => session_id(),
			'$newalbum' => t('New album name: '),
			'$existalbumtext' => t('or existing album name: '),
			'$filestext' => t('Select files to upload: '),
			'$albumselect' => $albumselect,
			'$archive' => $a->get_baseurl() . '/jumploader_z.jar',
			'$nojava' => t('Use the following controls only if the Java uploader (above) fails to launch.'),
			'$uploadurl' => $a->get_baseurl() . '/photos',
			'$submit' => t('Submit')
		));

		return $o; 

	}

	if($datatype == 'album') {

		$album = hex2bin($datum);

		$r = q("SELECT `resource-id`, max(`scale`) AS `scale` FROM `photo` WHERE `uid` = %d AND `album` = '%s' 
			$sql_extra GROUP BY `resource-id`",
			intval($a->data['user']['uid']),
			dbesc($album)
		);
		if(count($r))
			$a->set_pager_total(count($r));


		$r = q("SELECT `resource-id`, max(`scale`) AS `scale` FROM `photo` WHERE `uid` = %d AND `album` = '%s' 
			$sql_extra GROUP BY `resource-id` LIMIT %d , %d",
			intval($a->data['user']['uid']),
			dbesc($album),
			intval($a->pager['start']),
			intval($a->pager['itemspage'])
		);

		$o .= '<h3>' . $album . '</h3>';

		$tpl = file_get_contents('view/photo_album.tpl');
		if(count($r))
			foreach($r as $rr) {
				$o .= replace_macros($tpl,array(
					'$id' => $rr['id'],
					'$photolink' => $a->get_baseurl() . '/photos/' . $a->data['user']['nickname'] . '/image/' . $rr['resource-id'],
					'$phototitle' => t('View Photo'),
					'$imgsrc' => $a->get_baseurl() . '/photo/' . $rr['resource-id'] . '-' . $rr['scale'] . '.jpg',
					'$imgalt' => $rr['filename']
				));

		}
		$o .= '<div id="photo-album-end"></div>';
		return $o;

	}	


	if($datatype == 'image') {

		// fetch item containing image, then comments
		$r = q("SELECT * FROM `photo` WHERE `uid` = %d AND `resource-id` = '%s' 
			$sql_extra ORDER BY `scale` ASC ",
			intval($a->data['user']['uid']),
			dbesc($datum)
		);

		if(! count($r)) {
			notice( t('Photo not available') . EOL );
			return;
		}

		if(count($r) == 1)
			$hires = $lores = $r[0];
		if(count($r) > 1) {
			$hires = $r[0];
			$lores = $r[1];
		}

		$o .= '<a href="' . $a->get_baseurl() . '/photo/' 
			. $hires['resource-id'] . '-' . $hires['scale'] . '.jpg" title="' 
			. t('View Full Size') . '" ><img src="' . $a->get_baseurl() . '/photo/' 
			. $lores['resource-id'] . '-' . $lores['scale'] . '.jpg' . '" /></a>';


		return $o;
	}

	// Default - show recent photos with upload link (if applicable)

	$r = q("SELECT `resource-id`, max(`scale`) AS `scale` FROM `photo` WHERE `uid` = %d AND `album` != '%s' 
		$sql_extra GROUP BY `resource-id`",
		intval($a->data['user']['uid']),
		dbesc( t('Contact Photos'))
	);
	if(count($r))
		$a->set_pager_total(count($r));


	$r = q("SELECT `resource-id`, `album`, max(`scale`) AS `scale` FROM `photo` WHERE `uid` = %d AND `album` != '%s' 
		$sql_extra GROUP BY `resource-id` ORDER BY `created` DESC LIMIT %d , %d",
		intval($a->data['user']['uid']),
		dbesc( t('Contact Photos')),
		intval($a->pager['start']),
		intval($a->pager['itemspage'])
	);

	$o .= '<h3>' . t('Recent Photos') . '</h3>';

	if( local_user() && ($_SESSION['uid'] == $a->data['user']['uid'])) {
		$o .= '<div id="photo-top-links"><a id="photo-top-upload-link" href="'. $a->get_baseurl() . '/photos/' 
			. $a->data['user']['nickname'] . '/upload' . '">' . t('Upload New Photos') . '</a></div>';
	}

	$tpl = file_get_contents('view/photo_top.tpl');
	if(count($r)) {
		foreach($r as $rr) {
			$o .= replace_macros($tpl,array(
				'$id' => $rr['id'],
				'$photolink' => $a->get_baseurl() . '/photos/' . $a->data['user']['nickname'] 
					. '/image/' . $rr['resource-id'],
				'$phototitle' => t('View Photo'),
				'$imgsrc' => $a->get_baseurl() . '/photo/' 
					. $rr['resource-id'] . '-' . $rr['scale'] . '.jpg',
				'$albumlink' => $a->get_baseurl . '/photos/' 
					. $a->data['user']['nickname'] . '/album/' . bin2hex($rr['album']),
				'$albumname' => $rr['album'],
				'$albumalt' => t('View Album'),
				'$imgalt' => $rr['filename']
			));

		}
		$o .= '<div id="photo-top-end"></div>';
	}
	return $o;
}