120 lines
3.5 KiB
PHP
120 lines
3.5 KiB
PHP
<?php
|
|
/*
|
|
* Name: Handle SVG
|
|
* Author: Shish <webmaster@shishnet.org>
|
|
* Link: http://code.shishnet.org/shimmie2/
|
|
* Description: Handle SVG files. (No thumbnail is generated for SVG files)
|
|
*/
|
|
|
|
class SVGFileHandler implements Extension {
|
|
var $theme;
|
|
|
|
public function get_priority() {return 50;}
|
|
|
|
public function receive_event(Event $event) {
|
|
if(is_null($this->theme)) $this->theme = get_theme_object($this);
|
|
|
|
if(($event instanceof DataUploadEvent) && $this->supported_ext($event->type) && $this->check_contents($event->tmpname)) {
|
|
$hash = $event->hash;
|
|
$ha = substr($hash, 0, 2);
|
|
if(!move_upload_to_archive($event)) return;
|
|
send_event(new ThumbnailGenerationEvent($event->hash, $event->type));
|
|
$image = $this->create_image_from_data(warehouse_path("images", $hash), $event->metadata);
|
|
if(is_null($image)) {
|
|
throw new UploadException("SVG handler failed to create image object from data");
|
|
}
|
|
$iae = new ImageAdditionEvent($event->user, $image);
|
|
send_event($iae);
|
|
$event->image_id = $iae->image->id;
|
|
}
|
|
|
|
if(($event instanceof ThumbnailGenerationEvent) && $this->supported_ext($event->type)) {
|
|
$hash = $event->hash;
|
|
$ha = substr($hash, 0, 2);
|
|
|
|
global $config;
|
|
|
|
// if($config->get_string("thumb_engine") == "convert") {
|
|
// $w = $config->get_int("thumb_width");
|
|
// $h = $config->get_int("thumb_height");
|
|
// $q = $config->get_int("thumb_quality");
|
|
// $mem = $config->get_int("thumb_max_memory") / 1024 / 1024; // IM takes memory in MB
|
|
//
|
|
// exec("convert images/{$ha}/{$hash}[0] -geometry {$w}x{$h} -quality {$q} jpg:thumbs/{$ha}/{$hash}");
|
|
// }
|
|
// else {
|
|
copy("ext/handle_svg/thumb.jpg", warehouse_path("thumbs", $hash));
|
|
// }
|
|
}
|
|
|
|
if(($event instanceof DisplayingImageEvent) && $this->supported_ext($event->image->ext)) {
|
|
global $page;
|
|
$this->theme->display_image($page, $event->image);
|
|
}
|
|
|
|
if(($event instanceof PageRequestEvent) && $event->page_matches("get_svg")) {
|
|
global $config, $database, $page;
|
|
$id = int_escape($event->get_arg(0));
|
|
$image = Image::by_id($id);
|
|
$hash = $image->hash;
|
|
|
|
$page->set_type("image/svg+xml");
|
|
$page->set_mode("data");
|
|
$page->set_data(file_get_contents(warehouse_path("images", $hash)));
|
|
}
|
|
}
|
|
|
|
private function supported_ext($ext) {
|
|
$exts = array("svg");
|
|
return in_array(strtolower($ext), $exts);
|
|
}
|
|
|
|
private function create_image_from_data($filename, $metadata) {
|
|
global $config;
|
|
|
|
$image = new Image();
|
|
|
|
$msp = new MiniSVGParser($filename);
|
|
$image->width = $msp->width;
|
|
$image->height = $msp->height;
|
|
|
|
$image->filesize = $metadata['size'];
|
|
$image->hash = $metadata['hash'];
|
|
$image->filename = $metadata['filename'];
|
|
$image->ext = $metadata['extension'];
|
|
$image->tag_array = Tag::explode($metadata['tags']);
|
|
$image->source = $metadata['source'];
|
|
|
|
return $image;
|
|
}
|
|
|
|
private function check_contents($file) {
|
|
if(!file_exists($file)) return false;
|
|
|
|
$msp = new MiniSVGParser($file);
|
|
return $msp->valid;
|
|
}
|
|
}
|
|
|
|
class MiniSVGParser {
|
|
var $valid=false, $width=0, $height=0;
|
|
|
|
function MiniSVGParser($file) {
|
|
$xml_parser = xml_parser_create();
|
|
xml_set_element_handler($xml_parser, array($this, "startElement"), array($this, "endElement"));
|
|
$this->valid = xml_parse($xml_parser, file_get_contents($file), true);
|
|
xml_parser_free($xml_parser);
|
|
}
|
|
|
|
function startElement($parser, $name, $attrs) {
|
|
if($name == "SVG") {
|
|
$this->width = int_escape($attrs["WIDTH"]);
|
|
$this->height = int_escape($attrs["HEIGHT"]);
|
|
}
|
|
}
|
|
|
|
function endElement($parser, $name) {
|
|
}
|
|
}
|
|
?>
|