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<?php
/**
* Elgg multi-image uploader action
*
* This will upload up to 10 images at at time to an album
*/
global $CONFIG;
include dirname(dirname(__FILE__)) . "/lib/resize.php";
include dirname(dirname(__FILE__)) . "/lib/exif.php";
// Make sure we're logged in
gatekeeper();
// Get common variables
$access_id = (int) get_input("access_id");
$container_guid = (int) get_input('container_guid', 0);
if (!$container_guid)
$container_guid == $_SESSION['user']->getGUID();
$album = get_entity($container_guid);
$maxfilesize = (float) get_plugin_setting('maxfilesize','tidypics');
if (!$maxfilesize)
$maxfilesize = 5; // default to 5 MB if not set
$maxfilesize = 1024 * 1024 * $maxfilesize; // convert to bytes from MBs
$quota = get_plugin_setting('quota','tidypics');
$quota = 1024 * 1024 * $quota;
$image_repo_size_md = get_metadata_byname($album->container_guid, "image_repo_size");
$image_repo_size = (int)$image_repo_size_md->value;
$image_lib = get_plugin_setting('image_lib', 'tidypics');
if (!$image_lib)
$image_lib = "GD";
// post limit exceeded
if (count($_FILES) == 0) {
trigger_error('Tidypics warning: user exceeded post limit on image upload', E_USER_WARNING);
register_error(elgg_echo('tidypics:exceedpostlimit'));
forward(get_input('forward_url', $_SERVER['HTTP_REFERER']));
}
// test to make sure at least 1 image was selected by user
$num_images = 0;
foreach($_FILES as $key => $sent_file) {
if (!empty($sent_file['name']))
$num_images++;
}
if ($num_images == 0) {
// have user try again
register_error(elgg_echo('tidypics:noimages'));
forward(get_input('forward_url', $_SERVER['HTTP_REFERER']));
}
$uploaded_images = array();
$not_uploaded = array();
$error_msgs = array();
$img_river_view = get_plugin_setting('img_river_view', 'tidypics');
$accepted_formats = array(
'image/jpeg',
'image/png',
'image/gif',
'image/pjpeg',
'image/x-png',
);
foreach($_FILES as $key => $sent_file) {
// skip empty entries
if (empty($sent_file['name']))
continue;
$name = $sent_file['name'];
$mime = $sent_file['type'];
if ($sent_file['error']) {
array_push($not_uploaded, $sent_file['name']);
if ($sent_file['error'] == 1) {
trigger_error('Tidypics warning: image exceed server php upload limit', E_USER_WARNING);
array_push($error_msgs, elgg_echo('tidypics:image_mem'));
}
else {
array_push($error_msgs, elgg_echo('tidypics:unk_error'));
}
continue;
}
//make sure file is an image
if (!in_array($mime, $accepted_formats)) {
array_push($not_uploaded, $sent_file['name']);
array_push($error_msgs, elgg_echo('tidypics:not_image'));
continue;
}
// check quota
if ($quota) {
if ($image_repo_size + $sent_file['size'] > $quota) {
array_push($not_uploaded, $sent_file['name']);
array_push($error_msgs, elgg_echo('tidypics:exceed_quota'));
continue;
}
}
// make sure file does not exceed memory limit
if ($sent_file['size'] > $maxfilesize) {
array_push($not_uploaded, $sent_file['name']);
array_push($error_msgs, elgg_echo('tidypics:image_mem'));
continue;
}
// make sure the in memory image size does not exceed memory available - GD only
$imginfo = getimagesize($sent_file['tmp_name']);
$mem_avail = ini_get('memory_limit');
$mem_avail = rtrim($mem_avail, 'M');
$mem_avail = $mem_avail * 1024 * 1024;
if ($image_lib == 'GD') {
$mem_required = ceil(5.35 * $imginfo[0] * $imginfo[1]);
$mem_used = memory_get_usage();
$mem_avail = $mem_avail - $mem_used - 2097152; // 2 MB buffer
if ($mem_required > $mem_avail) {
array_push($not_uploaded, $sent_file['name']);
array_push($error_msgs, elgg_echo('tidypics:image_pixels'));
trigger_error('Tidypics warning: image memory size too large for resizing so rejecting', E_USER_WARNING);
continue;
}
} else if ($image_lib == 'ImageMagickPHP') {
// haven't been able to determine a limit like there is for GD
}
//this will save to users folder in /image/ and organize by photo album
$prefix = "image/" . $container_guid . "/";
$file = new ElggFile();
$filestorename = strtolower(time().$name);
$file->setFilename($prefix.$filestorename);
$file->setMimeType($mime);
$file->originalfilename = $name;
$file->subtype="image";
$file->simpletype="image";
$file->access_id = $access_id;
if ($container_guid) {
$file->container_guid = $container_guid;
}
$file->open("write");
$file->write(get_uploaded_file($key));
$file->close();
$result = $file->save();
if (!$result) {
array_push($not_uploaded, $sent_file['name']);
array_push($error_msgs, elgg_echo('tidypics:save_error'));
continue;
}
//get and store the exif data
td_get_exif($file);
// resize photos to create thumbnails
if ($image_lib == 'ImageMagick') { // ImageMagick command line
if (tp_create_imagick_cmdline_thumbnails($file, $prefix, $filestorename) != true) {
trigger_error('Tidypics warning: failed to create thumbnails - ImageMagick command line', E_USER_WARNING);
}
} else if ($image_lib == 'ImageMagickPHP') { // ImageMagick PHP
if (tp_create_imagick_thumbnails($file, $prefix, $filestorename) != true) {
trigger_error('Tidypics warning: failed to create thumbnails - ImageMagick PHP', E_USER_WARNING);
}
} else {
if (tp_create_gd_thumbnails($file, $prefix, $filestorename) != true) {
trigger_error('Tidypics warning: failed to create thumbnails - GD', E_USER_WARNING);
}
} // end of image library selector
//keep one file handy so we can add a notice to the river if single image option selected
if(!$file_for_river) {
$file_for_river = $file;
}
array_push($uploaded_images, $file->guid);
// update user/group size for checking quota
$image_repo_size += $sent_file['size'];
// successful upload so check if this is a new album and throw river event/notification if so
if ($album->new_album == TP_NEW_ALBUM) {
$album->new_album = TP_OLD_ALBUM;
// we throw the notification manually here so users are not told about the new album until there
// is at least a few photos in it
object_notifications('create', 'object', $album);
if (function_exists('add_to_river'))
add_to_river('river/object/album/create', 'create', $album->owner_guid, $album->guid);
}
if ($img_river_view == "all") {
add_to_river('river/object/image/create', 'create', $file->getObjectOwnerGUID(), $file->getGUID());
}
unset($file); // may not be needed but there seems to be a memory leak
} //end of for loop
if (count($not_uploaded) > 0) {
if (count($uploaded_images) > 0)
$error = sprintf(elgg_echo("tidypics:partialuploadfailure"), count($not_uploaded), count($not_uploaded) + count($uploaded_images)) . '<br />';
else
$error = elgg_echo("tidypics:completeuploadfailure") . '<br />';
$num_failures = count($not_uploaded);
for ($i = 0; $i < $num_failures; $i++) {
$error .= "{$not_uploaded[$i]}: {$error_msgs[$i]} <br />";
}
register_error($error);
if (count($uploaded_images) == 0)
forward(get_input('forward_url', $_SERVER['HTTP_REFERER'])); //upload failed, so forward to previous page
else {
// some images did upload so we fall through
}
} else {
system_message(elgg_echo('tidypics:upl_success'));
}
if (count($uploaded_images) && $img_river_view == "1") {
if (function_exists('add_to_river')) {
add_to_river('river/object/image/create', 'create', $file_for_river->getObjectOwnerGUID(), $file_for_river->getGUID());
}
}
// update image repo size
create_metadata($album->container_guid, "image_repo_size", $image_repo_size, 'integer', $album->container_guid);
// plugins can register to be told when a Tidypics album has had images added
trigger_elgg_event('upload', 'tp_album', $album);
//forward to multi-image edit page
forward($CONFIG->wwwroot . 'mod/tidypics/pages/edit_multiple.php?files=' . implode('-', $uploaded_images));
?>
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