/**
* Generate the necessary DataUploadEvent for a given image and tags.
*/
private function add_image($tmpname, $filename, $tags, $source, $rating, $thumbfile)
{
assert(file_exists($tmpname));
$pathinfo = pathinfo($filename);
if (!array_key_exists('extension', $pathinfo)) {
throw new UploadException("File has no extension");
}
$metadata = array();
$metadata['filename'] = $pathinfo['basename'];
$metadata['extension'] = $pathinfo['extension'];
$metadata['tags'] = $tags;
$metadata['source'] = $source;
$event = new DataUploadEvent($tmpname, $metadata);
send_event($event);
if ($event->image_id == -1) {
throw new UploadException("File type not recognised");
} else {
if (class_exists("RatingSetEvent") && in_array($rating, array("s", "q", "e"))) {
$ratingevent = new RatingSetEvent(Image::by_id($event->image_id), $rating);
send_event($ratingevent);
}
if (file_exists($thumbfile)) {
copy($thumbfile, warehouse_path("thumbs", $event->hash));
}
}
}
/**
* Generate the Thumbnail image for particular file.
*
* @param string $hash
* @return bool Returns true on successful thumbnail creation.
*/
protected function create_thumb($hash)
{
global $config;
$ok = false;
switch ($config->get_string("video_thumb_engine")) {
default:
case 'static':
$outname = warehouse_path("thumbs", $hash);
copy("ext/handle_video/thumb.jpg", $outname);
$ok = true;
break;
case 'ffmpeg':
$ffmpeg = escapeshellcmd($config->get_string("thumb_ffmpeg_path"));
$w = (int) $config->get_int("thumb_width");
$h = (int) $config->get_int("thumb_height");
$inname = escapeshellarg(warehouse_path("images", $hash));
$outname = escapeshellarg(warehouse_path("thumbs", $hash));
if ($config->get_bool("video_thumb_ignore_aspect_ratio") == true) {
$cmd = escapeshellcmd("{$ffmpeg} -i {$inname} -ss 00:00:00.0 -f image2 -vframes 1 {$outname}");
} else {
$scale = 'scale="' . escapeshellarg("if(gt(a,{$w}/{$h}),{$w},-1)") . ':' . escapeshellarg("if(gt(a,{$w}/{$h}),-1,{$h})") . '"';
$cmd = "{$ffmpeg} -i {$inname} -vf {$scale} -ss 00:00:00.0 -f image2 -vframes 1 {$outname}";
}
exec($cmd, $output, $returnValue);
if ((int) $returnValue == (int) 1) {
$ok = true;
}
log_debug('handle_video', "Generating thumbnail with command `{$cmd}`, returns {$returnValue}");
break;
}
return $ok;
}
public function onPageRequest(PageRequestEvent $event)
{
global $config, $database, $page;
if ($event->page_matches("get_svg")) {
$id = int_escape($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)));
}
}
public function onImageAddition(ImageAdditionEvent $event)
{
global $config;
$access = $config->get_string("amazon_s3_access");
$secret = $config->get_string("amazon_s3_secret");
$bucket = $config->get_string("amazon_s3_bucket");
if (!empty($bucket)) {
log_debug("amazon_s3", "Mirroring Image #" . $event->image->id . " to S3 #{$bucket}");
$s3 = new S3($access, $secret);
$s3->putBucket($bucket, S3::ACL_PUBLIC_READ);
$s3->putObjectFile(warehouse_path("thumbs", $event->image->hash), $bucket, 'thumbs/' . $event->image->hash, S3::ACL_PUBLIC_READ, array(), array("Content-Type" => "image/jpeg", "Content-Disposition" => "inline; filename=image-" . $event->image->id . ".jpg"));
$s3->putObjectFile(warehouse_path("images", $event->image->hash), $bucket, 'images/' . $event->image->hash, S3::ACL_PUBLIC_READ, array(), array("Content-Type" => $event->image->get_mime_type(), "Content-Disposition" => "inline; filename=image-" . $event->image->id . "." . $event->image->ext));
}
}
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", $hash)));
}
}
protected function create_thumb($hash)
{
$inname = warehouse_path("images", $hash);
$outname = warehouse_path("thumbs", $hash);
global $config;
$ok = false;
switch ($config->get_string("thumb_engine")) {
default:
case 'gd':
$ok = $this->make_thumb_gd($inname, $outname);
break;
case 'convert':
$ok = $this->make_thumb_convert($inname, $outname);
break;
}
return $ok;
}
/**
* @param string $hash
* @return bool
*/
protected function create_thumb($hash)
{
copy("ext/handle_mp3/thumb.jpg", warehouse_path("thumbs", $hash));
return true;
}
private function create_thumb($hash)
{
global $config;
$inname = warehouse_path("images", $hash);
$outname = warehouse_path("thumbs", $hash);
$w = $config->get_int("thumb_width");
$h = $config->get_int("thumb_height");
$q = $config->get_int("thumb_quality");
$mem = $config->get_int("thumb_max_memory") / 1024 / 1024;
// IM takes memory in MB
if ($config->get_bool("ico_convert")) {
// "-limit memory $mem" broken?
exec("convert {$inname}[0] -geometry {$w}x{$h} -quality {$q} jpg:{$outname}");
} else {
copy($inname, $outname);
}
return true;
}
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)) {
if (!move_upload_to_archive($event)) {
return;
}
send_event(new ThumbnailGenerationEvent($event->hash, $event->type));
/* Check if we are replacing an image */
if (array_key_exists('replace', $event->metadata) && isset($event->metadata['replace'])) {
/* hax: This seems like such a dirty way to do this.. */
/* Validate things */
$image_id = int_escape($event->metadata['replace']);
/* Check to make sure the image exists. */
$existing = Image::by_id($image_id);
if (is_null($existing)) {
throw new UploadException("Image to replace does not exist!");
}
if ($existing->hash === $event->metadata['hash']) {
throw new UploadException("The uploaded image is the same as the one to replace.");
}
// even more hax..
$event->metadata['tags'] = $existing->get_tag_list();
$image = $this->create_image_from_data(warehouse_path("images", $event->metadata['hash']), $event->metadata);
if (is_null($image)) {
throw new UploadException("Data handler failed to create image object from data");
}
$ire = new ImageReplaceEvent($image_id, $image);
send_event($ire);
$event->image_id = $image_id;
} else {
$image = $this->create_image_from_data(warehouse_path("images", $event->hash), $event->metadata);
if (is_null($image)) {
throw new UploadException("Data handler failed to create image object from data");
}
$iae = new ImageAdditionEvent($event->user, $image);
send_event($iae);
$event->image_id = $iae->image->id;
// Rating Stuff.
if (!empty($event->metadata['rating'])) {
global $user;
$rating = $event->metadata['rating'];
send_event(new RatingSetEvent($image, $user, $rating));
}
// Locked Stuff.
if (!empty($event->metadata['locked'])) {
$locked = $event->metadata['locked'];
send_event(new LockSetEvent($image, !empty($locked)));
}
}
}
if ($event instanceof ThumbnailGenerationEvent && $this->supported_ext($event->type)) {
$this->create_thumb($event->hash);
}
if ($event instanceof DisplayingImageEvent && $this->supported_ext($event->image->ext)) {
global $page;
$this->theme->display_image($page, $event->image);
}
if ($event instanceof SetupBuildingEvent) {
$sb = $this->setup();
if ($sb) {
$event->panel->add_block($sb);
}
}
}
protected function create_thumb($hash)
{
copy("ext/handle_flash/thumb.jpg", warehouse_path("thumbs", $hash));
}
/**
* Figure out where the thumbnail is on disk.
*
* @return string
*/
public function get_thumb_filename()
{
return warehouse_path("thumbs", $this->hash);
}
private function download_all_images()
{
global $database, $page;
$images = $database->get_all("SELECT hash, ext FROM images");
$filename = data_path('imgdump-' . date('Ymd') . '.zip');
$zip = new ZipArchive();
if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) === TRUE) {
foreach ($images as $img) {
$img_loc = warehouse_path("images", $img["hash"], FALSE);
$zip->addFile($img_loc, $img["hash"] . "." . $img["ext"]);
}
$zip->close();
}
$page->set_mode("redirect");
$page->set_redirect(make_link($filename));
//TODO: Delete file after downloaded?
return false;
// we do want a redirect, but a manual one
}
private function resize_image($image_id, $width, $height)
{
global $config;
global $user;
global $page;
global $database;
if ($height <= 0 && $width <= 0) {
throw new ImageResizeException("Invalid options for height and width. ({$width} x {$height})");
}
$image_obj = Image::by_id($image_id);
$hash = $image_obj->hash;
if (is_null($hash)) {
throw new ImageResizeException("Image does not have a hash associated with it.");
}
$image_filename = warehouse_path("images", $hash);
$info = getimagesize($image_filename);
/* Get the image file type */
$pathinfo = pathinfo($image_obj->filename);
$filetype = strtolower($pathinfo['extension']);
if ($image_obj->width != $info[0] || $image_obj->height != $info[1]) {
throw new ImageResizeException("The image size does not match what is in the database! - Aborting Resize.");
}
/* Check memory usage limits */
$memory_use = filesize($image_filename) * 2 + $width * $height * 4 + 4 * 1024 * 1024;
$memory_limit = get_memory_limit();
if ($memory_use > $memory_limit) {
throw new ImageResizeException("The image is too large to resize given the memory limits. ({$memory_use} > {$memory_limit})");
}
/* Calculate the new size of the image */
if ($height > 0 && $width > 0) {
$new_height = $height;
$new_width = $width;
} else {
// Scale the new image
if ($width == 0) {
$factor = $height / $image_obj->height;
} elseif ($height == 0) {
$factor = $width / $image_obj->width;
} else {
$factor = min($width / $image_obj->width, $height / $image_obj->height);
}
$new_width = round($image_obj->width * $factor);
$new_height = round($image_obj->height * $factor);
}
/* Attempt to load the image */
switch ($info[2]) {
case IMAGETYPE_GIF:
$image = imagecreatefromgif($image_filename);
break;
case IMAGETYPE_JPEG:
$image = imagecreatefromjpeg($image_filename);
break;
case IMAGETYPE_PNG:
$image = imagecreatefrompng($image_filename);
break;
default:
throw new ImageResizeException("Unsupported image type.");
}
/* Resize and resample the image */
$image_resized = imagecreatetruecolor($new_width, $new_height);
if ($info[2] == IMAGETYPE_GIF || $info[2] == IMAGETYPE_PNG) {
$transparency = imagecolortransparent($image);
if ($transparency >= 0) {
$transparent_color = imagecolorsforindex($image, $trnprt_indx);
$transparency = imagecolorallocate($image_resized, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);
imagefill($image_resized, 0, 0, $transparency);
imagecolortransparent($image_resized, $transparency);
} elseif ($info[2] == IMAGETYPE_PNG) {
imagealphablending($image_resized, false);
$color = imagecolorallocatealpha($image_resized, 0, 0, 0, 127);
imagefill($image_resized, 0, 0, $color);
imagesavealpha($image_resized, true);
}
}
imagecopyresampled($image_resized, $image, 0, 0, 0, 0, $new_width, $new_height, $image_obj->width, $image_obj->height);
/* Temp storage while we resize */
$tmp_filename = tempnam("/tmp", 'shimmie_resize');
if (empty($tmp_filename)) {
throw new ImageResizeException("Unable to save temporary image file.");
}
/* Output to the same format as the original image */
switch ($info[2]) {
case IMAGETYPE_GIF:
imagegif($image_resized, $tmp_filename);
break;
case IMAGETYPE_JPEG:
imagejpeg($image_resized, $tmp_filename);
break;
case IMAGETYPE_PNG:
imagepng($image_resized, $tmp_filename);
break;
default:
throw new ImageResizeException("Unsupported image type.");
}
/* Move the new image into the main storage location */
$new_hash = md5_file($tmp_filename);
$new_size = filesize($tmp_filename);
$target = warehouse_path("images", $new_hash);
if (!file_exists(dirname($target))) {
mkdir(dirname($target), 0755, true);
}
if (!@copy($tmp_filename, $target)) {
throw new ImageResizeException("Failed to copy new image file from temporary location ({$tmp_filename}) to archive ({$target})");
}
$new_filename = 'resized-' . $image_obj->filename;
/* Remove temporary file */
@unlink($tmp_filename);
/* Delete original image and thumbnail */
log_debug("image", "Removing image with hash " . $hash);
$image_obj->remove_image_only();
/* Generate new thumbnail */
send_event(new ThumbnailGenerationEvent($new_hash, $filetype));
/* Update the database */
$database->Execute("UPDATE images SET \n\t\t\t\t\tfilename = :filename, filesize = :filesize,\thash = :hash, width = :width, height = :height\n\t\t\t\tWHERE \n\t\t\t\t\tid = :id\n\t\t\t\t", array("filename" => $new_filename, "filesize" => $new_size, "hash" => $new_hash, "width" => $new_width, "height" => $new_height, "id" => $image_id));
log_info("resize", "Resized Image #{$image_id} - New hash: {$new_hash}");
}
protected function create_thumb($hash)
{
// FIXME: scale image, as not all boards use 192x192
copy("ext/handle_flash/thumb.jpg", warehouse_path("thumbs", $hash));
}
/**
* This function could be made much smaller by using the ImageReplaceEvent
* ie: Pretend that we are replacing the image with a resized copy.
*
* @param Image $image_obj
* @param int $width
* @param int $height
* @throws ImageResizeException
*/
private function resize_image(Image $image_obj, $width, $height)
{
global $config, $user, $page, $database;
if ($height <= 0 && $width <= 0) {
throw new ImageResizeException("Invalid options for height and width. ({$width} x {$height})");
}
$hash = $image_obj->hash;
$image_filename = warehouse_path("images", $hash);
$info = getimagesize($image_filename);
/* Get the image file type */
$pathinfo = pathinfo($image_obj->filename);
$filetype = strtolower($pathinfo['extension']);
if ($image_obj->width != $info[0] || $image_obj->height != $info[1]) {
throw new ImageResizeException("The current image size does not match what is set in the database! - Aborting Resize.");
}
/*
Check Memory usage limits
Old check: $memory_use = (filesize($image_filename)*2) + ($width*$height*4) + (4*1024*1024);
New check: memory_use = width * height * (bits per channel) * channels * 2.5
It didn't make sense to compute the memory usage based on the NEW size for the image. ($width*$height*4)
We need to consider the size that we are GOING TO instead.
The factor of 2.5 is simply a rough guideline.
http://stackoverflow.com/questions/527532/reasonable-php-memory-limit-for-image-resize
*/
if (isset($info['bits']) && isset($info['channels'])) {
$memory_use = $info[0] * $info[1] * ($info['bits'] / 8) * $info['channels'] * 2.5 / 1024;
} else {
//
// If we don't have bits and channel info from the image then assume default values
// of 8 bits per color and 4 channels (R,G,B,A) -- ie: regular 24-bit color
//
$memory_use = $info[0] * $info[1] * 1 * 4 * 2.5 / 1024;
}
$memory_limit = get_memory_limit();
if ($memory_use > $memory_limit) {
throw new ImageResizeException("The image is too large to resize given the memory limits. ({$memory_use} > {$memory_limit})");
}
/* Calculate the new size of the image */
if ($height > 0 && $width > 0) {
$new_height = $height;
$new_width = $width;
} else {
// Scale the new image
if ($width == 0) {
$factor = $height / $image_obj->height;
} elseif ($height == 0) {
$factor = $width / $image_obj->width;
} else {
$factor = min($width / $image_obj->width, $height / $image_obj->height);
}
$new_width = round($image_obj->width * $factor);
$new_height = round($image_obj->height * $factor);
}
/* Attempt to load the image */
switch ($info[2]) {
case IMAGETYPE_GIF:
$image = imagecreatefromgif($image_filename);
break;
case IMAGETYPE_JPEG:
$image = imagecreatefromjpeg($image_filename);
break;
case IMAGETYPE_PNG:
$image = imagecreatefrompng($image_filename);
break;
default:
throw new ImageResizeException("Unsupported image type (Only GIF, JPEG, and PNG are supported).");
}
// Handle transparent images
$image_resized = imagecreatetruecolor($new_width, $new_height);
if ($info[2] == IMAGETYPE_GIF) {
$transparency = imagecolortransparent($image);
// If we have a specific transparent color
if ($transparency >= 0) {
// Get the original image's transparent color's RGB values
$transparent_color = imagecolorsforindex($image, $transparency);
// Allocate the same color in the new image resource
$transparency = imagecolorallocate($image_resized, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
// Completely fill the background of the new image with allocated color.
imagefill($image_resized, 0, 0, $transparency);
// Set the background color for new image to transparent
imagecolortransparent($image_resized, $transparency);
}
} elseif ($info[2] == IMAGETYPE_PNG) {
//
// More info here: http://stackoverflow.com/questions/279236/how-do-i-resize-pngs-with-transparency-in-php
//
imagealphablending($image_resized, false);
imagesavealpha($image_resized, true);
$transparent_color = imagecolorallocatealpha($image_resized, 255, 255, 255, 127);
imagefilledrectangle($image_resized, 0, 0, $new_width, $new_height, $transparent_color);
}
// Actually resize the image.
imagecopyresampled($image_resized, $image, 0, 0, 0, 0, $new_width, $new_height, $image_obj->width, $image_obj->height);
/* Temp storage while we resize */
$tmp_filename = tempnam("/tmp", 'shimmie_resize');
if (empty($tmp_filename)) {
throw new ImageResizeException("Unable to save temporary image file.");
}
/* Output to the same format as the original image */
switch ($info[2]) {
case IMAGETYPE_GIF:
imagegif($image_resized, $tmp_filename);
break;
case IMAGETYPE_JPEG:
imagejpeg($image_resized, $tmp_filename);
break;
case IMAGETYPE_PNG:
imagepng($image_resized, $tmp_filename);
break;
default:
throw new ImageResizeException("Failed to save the new image - Unsupported image type.");
}
/* Move the new image into the main storage location */
$new_hash = md5_file($tmp_filename);
$new_size = filesize($tmp_filename);
$target = warehouse_path("images", $new_hash);
if (!@copy($tmp_filename, $target)) {
throw new ImageResizeException("Failed to copy new image file from temporary location ({$tmp_filename}) to archive ({$target})");
}
$new_filename = 'resized-' . $image_obj->filename;
/* Remove temporary file */
@unlink($tmp_filename);
/* Delete original image and thumbnail */
log_debug("image", "Removing image with hash " . $hash);
$image_obj->remove_image_only();
/* Generate new thumbnail */
send_event(new ThumbnailGenerationEvent($new_hash, $filetype));
/* Update the database */
$database->Execute("UPDATE images SET \n\t\t\t\t\tfilename = :filename, filesize = :filesize,\thash = :hash, width = :width, height = :height\n\t\t\t\tWHERE \n\t\t\t\t\tid = :id\n\t\t\t\t", array("filename" => $new_filename, "filesize" => $new_size, "hash" => $new_hash, "width" => $new_width, "height" => $new_height, "id" => $image_obj->id));
log_info("resize", "Resized Image #{$image_obj->id} - New hash: {$new_hash}");
}
/**
* This function could be made much smaller by using the ImageReplaceEvent
* ie: Pretend that we are replacing the image with a resized copy.
*
* @param Image $image_obj
* @param int $width
* @param int $height
* @throws ImageResizeException
*/
private function resize_image(Image $image_obj, $width, $height)
{
global $database;
if ($height <= 0 && $width <= 0) {
throw new ImageResizeException("Invalid options for height and width. ({$width} x {$height})");
}
$hash = $image_obj->hash;
$image_filename = warehouse_path("images", $hash);
$info = getimagesize($image_filename);
/* Get the image file type */
$pathinfo = pathinfo($image_obj->filename);
$filetype = strtolower($pathinfo['extension']);
if ($image_obj->width != $info[0] || $image_obj->height != $info[1]) {
throw new ImageResizeException("The current image size does not match what is set in the database! - Aborting Resize.");
}
$memory_use = $this->calc_memory_use($info);
$memory_limit = get_memory_limit();
if ($memory_use > $memory_limit) {
throw new ImageResizeException("The image is too large to resize given the memory limits. ({$memory_use} > {$memory_limit})");
}
list($new_height, $new_width) = $this->calc_new_size($image_obj, $width, $height);
/* Attempt to load the image */
switch ($info[2]) {
case IMAGETYPE_GIF:
$image = imagecreatefromgif($image_filename);
break;
case IMAGETYPE_JPEG:
$image = imagecreatefromjpeg($image_filename);
break;
case IMAGETYPE_PNG:
$image = imagecreatefrompng($image_filename);
break;
default:
throw new ImageResizeException("Unsupported image type (Only GIF, JPEG, and PNG are supported).");
}
// Handle transparent images
$image_resized = imagecreatetruecolor($new_width, $new_height);
if ($info[2] == IMAGETYPE_GIF) {
$transparency = imagecolortransparent($image);
// If we have a specific transparent color
if ($transparency >= 0) {
// Get the original image's transparent color's RGB values
$transparent_color = imagecolorsforindex($image, $transparency);
// Allocate the same color in the new image resource
$transparency = imagecolorallocate($image_resized, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
// Completely fill the background of the new image with allocated color.
imagefill($image_resized, 0, 0, $transparency);
// Set the background color for new image to transparent
imagecolortransparent($image_resized, $transparency);
}
} elseif ($info[2] == IMAGETYPE_PNG) {
//
// More info here: http://stackoverflow.com/questions/279236/how-do-i-resize-pngs-with-transparency-in-php
//
imagealphablending($image_resized, false);
imagesavealpha($image_resized, true);
$transparent_color = imagecolorallocatealpha($image_resized, 255, 255, 255, 127);
imagefilledrectangle($image_resized, 0, 0, $new_width, $new_height, $transparent_color);
}
// Actually resize the image.
imagecopyresampled($image_resized, $image, 0, 0, 0, 0, $new_width, $new_height, $image_obj->width, $image_obj->height);
/* Temp storage while we resize */
$tmp_filename = tempnam("/tmp", 'shimmie_resize');
if (empty($tmp_filename)) {
throw new ImageResizeException("Unable to save temporary image file.");
}
/* Output to the same format as the original image */
switch ($info[2]) {
case IMAGETYPE_GIF:
imagegif($image_resized, $tmp_filename);
break;
case IMAGETYPE_JPEG:
imagejpeg($image_resized, $tmp_filename);
break;
case IMAGETYPE_PNG:
imagepng($image_resized, $tmp_filename);
break;
default:
throw new ImageResizeException("Failed to save the new image - Unsupported image type.");
}
/* Move the new image into the main storage location */
$new_hash = md5_file($tmp_filename);
$new_size = filesize($tmp_filename);
$target = warehouse_path("images", $new_hash);
if (!@copy($tmp_filename, $target)) {
throw new ImageResizeException("Failed to copy new image file from temporary location ({$tmp_filename}) to archive ({$target})");
}
$new_filename = 'resized-' . $image_obj->filename;
/* Remove temporary file */
@unlink($tmp_filename);
/* Delete original image and thumbnail */
log_debug("image", "Removing image with hash " . $hash);
$image_obj->remove_image_only();
/* Generate new thumbnail */
send_event(new ThumbnailGenerationEvent($new_hash, $filetype));
/* Update the database */
$database->Execute("\n\t\t\tUPDATE images SET filename = :filename, filesize = :filesize, hash = :hash, width = :width, height = :height\n\t\t\tWHERE id = :id\n\t\t", array("filename" => $new_filename, "filesize" => $new_size, "hash" => $new_hash, "width" => $new_width, "height" => $new_height, "id" => $image_obj->id));
log_info("resize", "Resized Image #{$image_obj->id} - New hash: {$new_hash}");
}
/**
* @param DataUploadEvent $event
* @throws UploadException
*/
public function onDataUpload(DataUploadEvent $event)
{
$supported_ext = $this->supported_ext($event->type);
$check_contents = $this->check_contents($event->tmpname);
if ($supported_ext && $check_contents) {
if (!move_upload_to_archive($event)) {
return;
}
send_event(new ThumbnailGenerationEvent($event->hash, $event->type));
/* Check if we are replacing an image */
if (array_key_exists('replace', $event->metadata) && isset($event->metadata['replace'])) {
/* hax: This seems like such a dirty way to do this.. */
/* Validate things */
$image_id = int_escape($event->metadata['replace']);
/* Check to make sure the image exists. */
$existing = Image::by_id($image_id);
if (is_null($existing)) {
throw new UploadException("Image to replace does not exist!");
}
if ($existing->hash === $event->metadata['hash']) {
throw new UploadException("The uploaded image is the same as the one to replace.");
}
// even more hax..
$event->metadata['tags'] = $existing->get_tag_list();
$image = $this->create_image_from_data(warehouse_path("images", $event->metadata['hash']), $event->metadata);
if (is_null($image)) {
throw new UploadException("Data handler failed to create image object from data");
}
$ire = new ImageReplaceEvent($image_id, $image);
send_event($ire);
$event->image_id = $image_id;
} else {
$image = $this->create_image_from_data(warehouse_path("images", $event->hash), $event->metadata);
if (is_null($image)) {
throw new UploadException("Data handler failed to create image object from data");
}
$iae = new ImageAdditionEvent($image);
send_event($iae);
$event->image_id = $iae->image->id;
// Rating Stuff.
if (!empty($event->metadata['rating'])) {
$rating = $event->metadata['rating'];
send_event(new RatingSetEvent($image, $rating));
}
// Locked Stuff.
if (!empty($event->metadata['locked'])) {
$locked = $event->metadata['locked'];
send_event(new LockSetEvent($image, !empty($locked)));
}
}
} elseif ($supported_ext && !$check_contents) {
throw new UploadException("Invalid or corrupted file");
}
}
/**
* This function could be made much smaller by using the ImageReplaceEvent
* ie: Pretend that we are replacing the image with a rotated copy.
*
* @param int $image_id
* @param int $deg
* @throws ImageRotateException
*/
private function rotate_image($image_id, $deg)
{
global $config, $user, $page, $database;
if ($deg <= -360 || $deg >= 360) {
throw new ImageRotateException("Invalid options for rotation angle. ({$deg})");
}
$image_obj = Image::by_id($image_id);
$hash = $image_obj->hash;
if (is_null($hash)) {
throw new ImageRotateException("Image does not have a hash associated with it.");
}
$image_filename = warehouse_path("images", $hash);
if (file_exists($image_filename) == false) {
throw new ImageRotateException("{$image_filename} does not exist.");
}
$info = getimagesize($image_filename);
/* Get the image file type */
$pathinfo = pathinfo($image_obj->filename);
$filetype = strtolower($pathinfo['extension']);
/*
Check Memory usage limits
Old check: $memory_use = (filesize($image_filename)*2) + ($width*$height*4) + (4*1024*1024);
New check: memory_use = width * height * (bits per channel) * channels * 2.5
It didn't make sense to compute the memory usage based on the NEW size for the image. ($width*$height*4)
We need to consider the size that we are GOING TO instead.
The factor of 2.5 is simply a rough guideline.
http://stackoverflow.com/questions/527532/reasonable-php-memory-limit-for-image-resize
*/
$memory_use = $info[0] * $info[1] * ($info['bits'] / 8) * $info['channels'] * 2.5 / 1024;
$memory_limit = get_memory_limit();
if ($memory_use > $memory_limit) {
throw new ImageRotateException("The image is too large to rotate given the memory limits. ({$memory_use} > {$memory_limit})");
}
/* Attempt to load the image */
switch ($info[2]) {
case IMAGETYPE_GIF:
$image = imagecreatefromgif($image_filename);
break;
case IMAGETYPE_JPEG:
$image = imagecreatefromjpeg($image_filename);
break;
case IMAGETYPE_PNG:
$image = imagecreatefrompng($image_filename);
break;
default:
throw new ImageRotateException("Unsupported image type or ");
}
/* Rotate and resample the image */
/*
$image_rotated = imagecreatetruecolor( $new_width, $new_height );
if ( ($info[2] == IMAGETYPE_GIF) || ($info[2] == IMAGETYPE_PNG) ) {
$transparency = imagecolortransparent($image);
if ($transparency >= 0) {
$transparent_color = imagecolorsforindex($image, $trnprt_indx);
$transparency = imagecolorallocate($image_rotated, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);
imagefill($image_rotated, 0, 0, $transparency);
imagecolortransparent($image_rotated, $transparency);
}
elseif ($info[2] == IMAGETYPE_PNG) {
imagealphablending($image_rotated, false);
$color = imagecolorallocatealpha($image_rotated, 0, 0, 0, 127);
imagefill($image_rotated, 0, 0, $color);
imagesavealpha($image_rotated, true);
}
}
*/
$image_rotated = imagerotate($image, $deg, 0);
/* Temp storage while we rotate */
$tmp_filename = tempnam(ini_get('upload_tmp_dir'), 'shimmie_rotate');
if (empty($tmp_filename)) {
throw new ImageRotateException("Unable to save temporary image file.");
}
/* Output to the same format as the original image */
switch ($info[2]) {
case IMAGETYPE_GIF:
imagegif($image_rotated, $tmp_filename);
break;
case IMAGETYPE_JPEG:
imagejpeg($image_rotated, $tmp_filename);
break;
case IMAGETYPE_PNG:
imagepng($image_rotated, $tmp_filename);
break;
default:
throw new ImageRotateException("Unsupported image type.");
}
/* Move the new image into the main storage location */
$new_hash = md5_file($tmp_filename);
$new_size = filesize($tmp_filename);
$target = warehouse_path("images", $new_hash);
if (!@copy($tmp_filename, $target)) {
throw new ImageRotateException("Failed to copy new image file from temporary location ({$tmp_filename}) to archive ({$target})");
}
$new_filename = 'rotated-' . $image_obj->filename;
list($new_width, $new_height) = getimagesize($target);
/* Remove temporary file */
@unlink($tmp_filename);
/* Delete original image and thumbnail */
log_debug("image", "Removing image with hash " . $hash);
$image_obj->remove_image_only();
/* Generate new thumbnail */
send_event(new ThumbnailGenerationEvent($new_hash, $filetype));
/* Update the database */
$database->Execute("UPDATE images SET \n\t\t\t\t\tfilename = :filename, filesize = :filesize,\thash = :hash, width = :width, height = :height\n\t\t\t\tWHERE \n\t\t\t\t\tid = :id\n\t\t\t\t", array("filename" => $new_filename, "filesize" => $new_size, "hash" => $new_hash, "width" => $new_width, "height" => $new_height, "id" => $image_id));
log_info("rotate", "Rotated Image #{$image_id} - New hash: {$new_hash}");
}
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)) {
if (!move_upload_to_archive($event)) {
return;
}
send_event(new ThumbnailGenerationEvent($event->hash, $event->type));
$image = $this->create_image_from_data(warehouse_path("images", $event->hash), $event->metadata);
if (is_null($image)) {
throw new UploadException("Data 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)) {
$this->create_thumb($event->hash);
}
if ($event instanceof DisplayingImageEvent && $this->supported_ext($event->image->ext)) {
global $page;
$this->theme->display_image($page, $event->image);
}
}
<?php
// custom routing for stand-alone mode
if (PHP_SAPI !== 'cli-server') {
die('cli only');
}
// warehouse files
$matches = array();
if (preg_match('/\\/_(images|thumbs)\\/([0-9a-f]{32}).*$/', $_SERVER["REQUEST_URI"], $matches)) {
header('Content-Type: image/jpeg');
print file_get_contents(warehouse_path($matches[1], $matches[2]));
return true;
}
unset($matches);
// use the default handler (serve static files, interpret php files)
if (preg_match('/\\.(?:png|jpg|jpeg|gif|css|js|php)(\\?.*)?$/', $_SERVER["REQUEST_URI"])) {
return false;
}
// all other requests (use shimmie routing based on URL)
$_SERVER["PHP_SELF"] = '/';
$_GET['q'] = $_SERVER["REQUEST_URI"];
require_once "index.php";