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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;
require_once(dirname(__FILE__)."/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']));
}
$not_uploaded = array();
$uploaded_images = array();
foreach($_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);
continue;
}
//make sure file is an image
if ($mime != 'image/jpeg' && $mime != 'image/gif' && $mime != 'image/png' && $mime != 'image/pjpeg') {
array_push($not_uploaded, $sent_file['name']);
continue;
}
// make sure file does not exceed memory limit
if ($sent_file['size'] > $maxfilesize) {
array_push($not_uploaded, $sent_file['name']);
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, $sent_file['name']);
trigger_error('Tidypics warning: image memory size too large for resizing so rejecting', E_USER_WARNING);
continue;
}
} else if ($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, $sent_file['name']);
continue;
}
// successfully saved image
array_push($uploaded_images, $file->guid);
if ($image_lib === 'GD') {
// Generate thumbnails
$thumbnail = get_resized_image_from_existing_file( $file->getFilenameOnFilestore(),
$CONFIG->tidypics->image_thumb_width,
$CONFIG->tidypics->image_thumb_height,
true);
if ($thumbnail) {
$thumb = new ElggFile();
$thumb->setMimeType($mime);
$thumb->setFilename($prefix."thumb".$filestorename);
$thumb->open("write");
if ($thumb->write($thumbnail)) {
$file->thumbnail = $prefix."thumb".$filestorename;
} else {
$thumb->delete();
}
$thumb->close();
}
unset($thumbnail);
unset($thumb);
$thumbsmall = get_resized_image_from_existing_file( $file->getFilenameOnFilestore(),
$CONFIG->tidypics->image_small_width,
$CONFIG->tidypics->image_small_height,
true);
if ($thumbsmall) {
$thumb = new ElggFile();
$thumb->setMimeType($mime);
$thumb->setFilename($prefix."smallthumb".$filestorename);
$thumb->open("write");
if ($thumb->write($thumbsmall)) {
$file->smallthumb = $prefix."smallthumb".$filestorename;
} else {
$thumb->delete();
}
$thumb->close();
}
unset($thumbsmall);
unset($thumb);
$thumblarge = get_resized_image_from_existing_file( $file->getFilenameOnFilestore(),
$CONFIG->tidypics->image_large_width,
$CONFIG->tidypics->image_large_height,
false);
if ($thumblarge) {
$thumb = new ElggFile();
$thumb->setMimeType($mime);
$thumb->setFilename($prefix."largethumb".$filestorename);
$thumb->open("write");
if ($thumb->write($thumblarge)) {
$file->largethumb = $prefix."largethumb".$filestorename;
} else {
$thumb->delete();
}
$thumb->close();
}
unset($thumblarge);
unset($thumb);
unset($file);
} else {
//gfroese: build the actual thumbnails now
$album = get_entity($container_guid);
$user = get_user_entity_as_row($album->owner_guid);
$username = $user->username;
try {
$thumblarge = tp_resize($file->getFilenameOnFilestore(),
"largethumb",
$CONFIG->tidypics->image_large_width,
$CONFIG->tidypics->image_large_height,
false);
} catch (Exception $e) { $thumblarge = false; }
try {
$thumbsmall = tp_resize($file->getFilenameOnFilestore(),
"smallthumb",
$CONFIG->tidypics->image_small_width,
$CONFIG->tidypics->image_small_height,
true);
} catch (Exception $e) { $thumbsmall = false; }
try {
$thumbnail = tp_resize($file->getFilenameOnFilestore(),
"thumb",
$CONFIG->tidypics->image_thumb_width,
$CONFIG->tidypics->image_thumb_height,
true);
} catch (Exception $e) { $thumbnail = false; }
if ($thumbnail) {
$thumb = new ElggFile();
$thumb->setMimeType($mime);
$thumb->setFilename($prefix."thumb".$filestorename);
$file->thumbnail = $prefix."thumb".$filestorename;
}
if ($thumbsmall) {
$thumb = new ElggFile();
$thumb->setMimeType($mime);
$thumb->setFilename($prefix."smallthumb".$filestorename);
$file->smallthumb = $prefix."smallthumb".$filestorename;
}
if ($thumblarge) {
$thumb = new ElggFile();
$thumb->setMimeType($mime);
$thumb->setFilename($prefix."largethumb".$filestorename);
$file->largethumb = $prefix."largethumb".$filestorename;
}
$im_path = get_plugin_setting('convert_command', 'tidypics');
if(!$im_path) {
$im_path = "/usr/bin/";
}
if(substr($im_path, strlen($im_path)-1, 1) != "/") $im_path .= "/";
$watermark_text = get_plugin_setting('watermark_text', 'tidypics');
if( $watermark_text ) { //get this value from the plugin settings
if( $thumblarge ) {
$ext = ".png";
$watermark_filename = strtolower($watermark_text);
$watermark_filename = preg_replace("/[^\w-]+/", "-", $watermark_filename);
$watermark_filename = trim($watermark_filename, '-');
$viewer = get_loggedin_user();
$user_stamp_base = dirname(__FILE__) . "/" . $viewer->name . "_" . $watermark_filename . "_stamp";
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 . ' ' . $thumblarge . ' ' . $thumblarge . '_watermarked';
$commands[] = "mv $thumblarge" . "_watermarked $thumblarge";
foreach( $commands as $command ) {
exec( $command );
}
}
}
} // end of image library selector
} //end of for loop
if (count($not_uploaded) == 0) {
system_message(elgg_echo("images:saved"));
} else {
$error = elgg_echo("image:uploadfailed") . '<br />';
foreach($not_uploaded as $im_name){
$error .= ' [' . $im_name . '] ';
}
$error .= ' ' . elgg_echo("image:notimage");
register_error($error);
} //end of upload check
if (count($uploaded_images)>0) {
// 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);
$album->new_album = 0;
}
forward($CONFIG->wwwroot . 'mod/tidypics/edit_multi.php?files=' . implode('-', $uploaded_images)); //forward to multi-image edit page
} else {
forward(get_input('forward_url', $_SERVER['HTTP_REFERER'])); //upload failed, so forward to previous page
}
?>
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