openvk/Web/Models/Entities/Photo.php

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<?php declare(strict_types=1);
namespace openvk\Web\Models\Entities;
use MessagePack\MessagePack;
use openvk\Web\Models\Entities\Album;
use openvk\Web\Models\Repositories\Albums;
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use Chandler\Database\DatabaseConnection as DB;
use Nette\InvalidStateException as ISE;
use Nette\Utils\Image;
class Photo extends Media
{
protected $tableName = "photos";
protected $fileExtension = "jpeg";
const ALLOWED_SIDE_MULTIPLIER = 7;
private function resizeImage(string $filename, string $outputDir, \SimpleXMLElement $size): array
{
$res = [false];
$image = Image::fromFile($filename);
$requiresProportion = ((string) $size["requireProp"]) != "none";
if($requiresProportion) {
$props = explode(":", (string) $size["requireProp"]);
$px = (int) $props[0];
$py = (int) $props[1];
if(($image->getWidth() / $image->getHeight()) > ($px / $py)) {
# For some weird reason using resize with EXACT flag causes system to consume an unholy amount of RAM
$image->crop(0, 0, "100%", (int) ceil(($px * $image->getWidth()) / $py));
$res[0] = true;
}
}
if(isset($size["maxSize"])) {
$maxSize = (int) $size["maxSize"];
$image->resize($maxSize, $maxSize, Image::SHRINK_ONLY | Image::FIT);
} else if(isset($size["maxResolution"])) {
$resolution = explode("x", (string) $size["maxResolution"]);
$image->resize((int) $resolution[0], (int) $resolution[1], Image::SHRINK_ONLY | Image::FIT);
} else {
throw new \RuntimeException("Malformed size description: " . (string) $size["id"]);
}
$res[1] = $image->getWidth();
$res[2] = $image->getHeight();
if($res[1] <= 300 || $res[2] <= 300)
$image->save("$outputDir/" . (string) $size["id"] . ".gif");
else
$image->save("$outputDir/" . (string) $size["id"] . ".jpeg");
imagedestroy($image->getImageResource());
unset($image);
return $res;
}
private function saveImageResizedCopies(string $filename, string $hash): void
{
$dir = dirname($this->pathFromHash($hash));
$dir = "$dir/$hash" . "_cropped";
if(!is_dir($dir))
mkdir($dir);
$sizes = simplexml_load_file(OPENVK_ROOT . "/data/photosizes.xml");
if(!$sizes)
throw new \RuntimeException("Could not load photosizes.xml!");
$sizesMeta = [];
foreach($sizes->Size as $size)
$sizesMeta[(string) $size["id"]] = $this->resizeImage($filename, $dir, $size);
$sizesMeta = MessagePack::pack($sizesMeta);
$this->stateChanges("sizes", $sizesMeta);
}
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protected function saveFile(string $filename, string $hash): bool
{
$image = Image::fromFile($filename);
if(($image->height >= ($image->width * Photo::ALLOWED_SIDE_MULTIPLIER)) || ($image->width >= ($image->height * Photo::ALLOWED_SIDE_MULTIPLIER)))
throw new ISE("Invalid layout: image is too wide/short");
$image->resize(8192, 4320, Image::SHRINK_ONLY | Image::FIT);
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$image->save($this->pathFromHash($hash), 92, Image::JPEG);
$this->saveImageResizedCopies($filename, $hash);
$this->getDimensions(); # propagate dimensions info in DB
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return true;
}
function crop(real $left, real $top, real $width, real $height): void
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{
if(isset($this->changes["hash"]))
$hash = $this->changes["hash"];
else if(!is_null($this->getRecord()))
$hash = $this->getRecord()->hash;
else
throw new ISE("Cannot crop uninitialized image. Please call setFile(\$_FILES[...]) first.");
$image = Image::fromFile($this->pathFromHash($hash));
$image->crop($left, $top, $width, $height);
$image->save($this->pathFromHash($hash));
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}
function isolate(): void
{
if(is_null($this->getRecord()))
throw new ISE("Cannot isolate unpresisted image. Please save() it first.");
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DB::i()->getContext()->table("album_relations")->where("media", $this->getRecord()->id)->delete();
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}
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function getSizes(bool $upgrade = false, bool $forceUpdate = false): ?array
{
$sizes = $this->getRecord()->sizes;
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if(!$sizes || $forceUpdate) {
if($forceUpdate || $upgrade || OPENVK_ROOT_CONF["openvk"]["preferences"]["photos"]["upgradeStructure"]) {
$hash = $this->getRecord()->hash;
$this->saveImageResizedCopies($this->pathFromHash($hash), $hash);
$this->save();
return $this->getSizes();
}
return NULL;
}
$res = [];
$sizes = MessagePack::unpack($sizes);
foreach($sizes as $id => $meta) {
$url = $this->getURL();
$url = str_replace(".$this->fileExtension", "_cropped/$id.", $url);
$url .= ($meta[1] <= 300 || $meta[2] <= 300) ? "gif" : "jpeg";
$res[$id] = (object) [
"url" => $url,
"width" => $meta[1],
"height" => $meta[2],
"crop" => $meta[0]
];
}
[$x, $y] = $this->getDimensions();
$res["UPLOADED_MAXRES"] = (object) [
"url" => $this->getURL(),
"width" => $x,
"height" => $y,
"crop" => false
];
return $res;
}
function getVkApiSizes(): ?array
{
$res = [];
$sizes = $this->getSizes();
if(!$sizes)
return NULL;
$manifest = simplexml_load_file(OPENVK_ROOT . "/data/photosizes.xml");
if(!$manifest)
return NULL;
$mappings = [];
foreach($manifest->Size as $size)
$mappings[(string) $size["id"]] = (string) $size["vkId"];
foreach($sizes as $id => $meta)
$res[$mappings[$id] ?? $id] = $meta;
return $res;
}
function getURLBySizeId(string $size): string
{
$sizes = $this->getSizes();
if(!$sizes)
return $this->getURL();
$size = $sizes[$size];
if(!$size)
return $this->getURL();
return $size->url;
}
function getDimensions(): array
{
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$x = $this->getRecord()->width;
$y = $this->getRecord()->height;
if(!$x) { # no sizes in database
$hash = $this->getRecord()->hash;
$image = Image::fromFile($this->pathFromHash($hash));
$x = $image->getWidth();
$y = $image->getHeight();
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$this->stateChanges("width", $x);
$this->stateChanges("height", $y);
$this->save();
}
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return [$x, $y];
}
function getAlbum(): ?Album
{
return (new Albums)->getAlbumByPhotoId($this);
}
function toVkApiStruct(): object
{
$res = (object) [];
$res->id = $res->pid = $this->getId();
$res->owner_id = $res->user_id = $this->getOwner()->getId()->getId();
$res->aid = $res->album_id = NULL;
$res->width = $this->getDimensions()[0];
$res->height = $this->getDimensions()[1];
$res->date = $res->created = $this->getPublicationTime()->timestamp();
$res->sizes = $this->getVkApiSizes();
$res->src_small = $res->photo_75 = $this->getURLBySizeId("miniscule");
$res->src = $res->photo_130 = $this->getURLBySizeId("tiny");
$res->src_big = $res->photo_604 = $this->getURLBySizeId("normal");
$res->src_xbig = $res->photo_807 = $this->getURLBySizeId("large");
$res->src_xxbig = $res->photo_1280 = $this->getURLBySizeId("larger");
$res->src_xxxbig = $res->photo_2560 = $this->getURLBySizeId("original");
$res->src_original = $res->url = $this->getURLBySizeId("UPLOADED_MAXRES");
return $res;
}
static function fastMake(int $owner, string $description = "", array $file, ?Album $album = NULL, bool $anon = false): Photo
{
$photo = new static;
$photo->setOwner($owner);
$photo->setDescription(iconv_substr($description, 0, 36) . "...");
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$photo->setAnonymous($anon);
$photo->setCreated(time());
$photo->setFile($file);
$photo->save();
if(!is_null($album))
$album->addPhoto($photo);
return $photo;
}
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}