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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";
// 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();
$maxfilesize = get_plugin_setting('maxfilesize','tidypics');
if (!$maxfilesize)
$maxfilesize = 5; // default to 5 MB if not set
$maxfilesize = 1024 * 1024 * $maxfilesize; // convert to bytes from MBs
$image_lib = get_plugin_setting('image_lib', 'tidypics');
if (!$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('Too many large images - try to upload fewer or smaller images');
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('No images were selected. Please try again');
forward(get_input('forward_url', $_SERVER['HTTP_REFERER']));
}
$uploaded_images = array();
$not_uploaded = array();
$error_msgs = array();
foreach($_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($error_msgs, 'Image was too large in MB');
}
else {
array_push($error_msgs, 'Unknown upload error');
}
continue;
}
//make sure file is an image
if ($mime != 'image/jpeg' && $mime != 'image/gif' && $mime != 'image/png' && $mime != 'image/pjpeg') {
array_push($not_uploaded, $sent_file['name']);
array_push($error_msgs, 'Not a known image type');
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, 'Image was too large in MB');
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 = 5 * $imginfo[0] * $imginfo[1];
$mem_avail = $mem_avail - memory_get_peak_usage() - 4194304; // 4 MB buffer
if ($mem_required > $mem_avail) {
array_push($not_uploaded, $sent_file['name']);
array_push($error_msgs, 'Image was too large in pixels');
trigger_error('Tidypics warning: image memory size too large for resizing so rejecting', E_USER_WARNING);
continue;
}
} else if ($image_lib === 'ImageMagick') { // this will be for PHP ImageMagick
/*
$mem_required = 5 * $imginfo[0] * $imginfo[1];
$mem_avail = $mem_avail - memory_get_peak_usage() - 4194304; // 4 MB buffer
if ($mem_required > $mem_avail) {
array_push($not_uploaded, $sent_file['name']);
trigger_error('Tidypics warning: image memory size too large for resizing so rejecting', E_USER_WARNING);
continue;
}
*/
}
//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->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, 'Unknown error saving the image on server');
continue;
}
if ($image_lib === 'GD') {
if (tp_create_gd_thumbnails($file, $prefix, $filestorename) != true) {
trigger_error('Tidypics warning: failed to create thumbnails', E_USER_WARNING);
}
} else if ($image_lib === 'ToDo:ImageMagick') { // ImageMagick PHP
/*
if (tp_create_imagick_thumbnails($file, $prefix, $filestorename) != true) {
trigger_error('Tidypics warning: failed to create thumbnails', E_USER_WARNING);
}
*/
} else { // ImageMagick command line
$thumbs = tp_create_imagick_cmdline_thumbnails($file, $prefix, $filestorename);
if(!count($thumbs)) {
trigger_error('Tidypics warning: failed to create thumbnails', E_USER_WARNING);
}
$album = get_entity($container_guid);
$user = get_user_entity_as_row($album->owner_guid);
$username = $user->username;
$im_path = get_plugin_setting('convert_command', 'tidypics');
if(!$im_path) {
$im_path = "/usr/bin/";
}
if(substr($im_path, strlen($im_path)-1, 1) != "/") $im_path .= "/";
$viewer = get_loggedin_user();
$watermark_text = get_plugin_setting('watermark_text', 'tidypics');
$watermark_text = str_replace("%username%", $viewer->username, $watermark_text);
$watermark_text = str_replace("%sitename%", $CONFIG->sitename, $watermark_text);
if( $watermark_text ) { //get this value from the plugin settings
if( $thumbs["thumblarge"] ) {
$ext = ".png";
$watermark_filename = strtolower($watermark_text);
$watermark_filename = preg_replace("/[^\w-]+/", "-", $watermark_filename);
$watermark_filename = trim($watermark_filename, '-');
$user_stamp_base = strtolower(dirname(__FILE__) . "/" . $viewer->name . "_" . $watermark_filename . "_stamp");
$user_stamp_base = preg_replace("/[^\w-]+/", "-", $user_stamp_base);
$user_stamp_base = trim($user_stamp_base, '-');
if( !file_exists( $user_stamp_base . $ext )) { //create the watermark if it doesn't exist
$commands = array();
$commands[] = $im_path . 'convert -size 300x50 xc:grey30 -pointsize 20 -gravity center -draw "fill grey70 text 0,0 \''. $watermark_text . '\'" "'. $user_stamp_base . '_fgnd' . $ext . '"';
$commands[] = $im_path . 'convert -size 300x50 xc:black -pointsize 20 -gravity center -draw "fill white text 1,1 \''. $watermark_text . '\' text 0,0 \''. $watermark_text . '\' fill black text -1,-1 \''. $watermark_text . '\'" +matte ' . $user_stamp_base . '_mask' . $ext;
$commands[] = $im_path . 'composite -compose CopyOpacity "' . $user_stamp_base . "_mask" . $ext . '" "' . $user_stamp_base . '_fgnd' . $ext . '" "' . $user_stamp_base . $ext . '"';
$commands[] = $im_path . 'mogrify -trim +repage "' . $user_stamp_base . $ext . '"';
$commands[] = 'rm "' . $user_stamp_base . '_mask' . $ext . '"';
$commands[] = 'rm "' . $user_stamp_fgnd . '_mask' . $ext . '"';
foreach( $commands as $command ) {
exec( $command );
}
}
//apply the watermark
$commands = array();
$commands[] = $im_path . 'composite -gravity south -geometry +0+10 "' . $user_stamp_base . $ext . '" "' . $thumbs["thumblarge"] . '" "' . $thumbs["thumblarge"] . '_watermarked"';
$commands[] = "mv \"$thumbs[thumblarge]" . "_watermarked\" \"$thumbs[thumblarge]\"";
foreach( $commands as $command ) {
exec( $command );
}
}
}
} // end of image library selector
array_push($uploaded_images, $file->guid);
unset($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("images:saved"));
}
// successful upload so check if this is a new album and throw river event if so
$album = get_entity($container_guid);
if ($album->new_album == 1) {
if (function_exists('add_to_river'))
add_to_river('river/object/album/create', 'create', $album->owner_guid, $album->guid);
$album->new_album = 0;
}
// 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/edit_multi.php?files=' . implode('-', $uploaded_images));
?>
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