<?php
/**
- * @file src/Object/Image.php
- * @brief This file contains the Image class for image processing
+ * @copyright Copyright (C) 2010-2021, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
*/
+
namespace Friendica\Object;
use Exception;
-use Friendica\Core\Cache;
-use Friendica\Core\Config;
-use Friendica\Core\Logger;
-use Friendica\Core\System;
-use Friendica\Util\Network;
+use Friendica\DI;
+use Friendica\Util\Images;
use Imagick;
use ImagickPixel;
private $types;
/**
- * @brief supported mimetypes and corresponding file extensions
- * @return array
- */
- public static function supportedTypes()
- {
- if (class_exists('Imagick')) {
- // Imagick::queryFormats won't help us a lot there...
- // At least, not yet, other parts of friendica uses this array
- $t = [
- 'image/jpeg' => 'jpg',
- 'image/png' => 'png',
- 'image/gif' => 'gif'
- ];
- } else {
- $t = [];
- $t['image/jpeg'] ='jpg';
- if (imagetypes() & IMG_PNG) {
- $t['image/png'] = 'png';
- }
- }
-
- return $t;
- }
-
- /**
- * @brief Constructor
+ * Constructor
* @param string $data
* @param boolean $type optional, default null
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
public function __construct($data, $type = null)
{
$this->imagick = class_exists('Imagick');
- $this->types = static::supportedTypes();
+ $this->types = Images::supportedTypes();
if (!array_key_exists($type, $this->types)) {
- $type='image/jpeg';
+ $type = 'image/jpeg';
}
$this->type = $type;
}
/**
- * @brief Destructor
+ * Destructor
+ *
* @return void
*/
public function __destruct()
return $this->imagick;
}
- /**
- * @brief Maps Mime types to Imagick formats
- * @return array With with image formats (mime type as key)
- */
- public static function getFormatsMap()
- {
- $m = [
- 'image/jpeg' => 'JPG',
- 'image/png' => 'PNG',
- 'image/gif' => 'GIF'
- ];
- return $m;
- }
-
/**
* @param string $data data
* @return boolean
/*
* Setup the image to the format it will be saved to
*/
- $map = self::getFormatsMap();
+ $map = Images::getFormatsMap();
$format = $map[$this->type];
$this->image->setFormat($format);
// Always coalesce, if it is not a multi-frame image it won't hurt anyway
- $this->image = $this->image->coalesceImages();
+ try {
+ $this->image = $this->image->coalesceImages();
+ } catch (Exception $e) {
+ return false;
+ }
/*
* setup the compression here, so we'll do it only once
*/
switch ($this->getType()) {
case "image/png":
- $quality = Config::get('system', 'png_quality');
- if ((! $quality) || ($quality > 9)) {
- $quality = PNG_QUALITY;
- }
+ $quality = DI::config()->get('system', 'png_quality');
/*
* From http://www.imagemagick.org/script/command-line-options.php#quality:
*
$this->image->setCompressionQuality($quality);
break;
case "image/jpeg":
- $quality = Config::get('system', 'jpeg_quality');
- if ((! $quality) || ($quality > 100)) {
- $quality = JPEG_QUALITY;
- }
+ $quality = DI::config()->get('system', 'jpeg_quality');
$this->image->setCompressionQuality($quality);
}
}
if ($this->isImagick()) {
- /* Clean it */
- $this->image = $this->image->deconstructImages();
- return $this->image;
+ try {
+ /* Clean it */
+ $this->image = $this->image->deconstructImages();
+ return $this->image;
+ } catch (Exception $e) {
+ return false;
+ }
}
return $this->image;
}
break;
}
- // Logger::log('exif: ' . print_r($exif,true));
return $exif;
}
}
/**
- * @brief Scale image to target dimensions
+ * Scale image to target dimensions
*
* @param int $dest_width
* @param int $dest_height
do {
// FIXME - implement horizontal bias for scaling as in following GD functions
// to allow very tall images to be constrained only horizontally.
- $this->image->scaleImage($dest_width, $dest_height);
+ try {
+ $this->image->scaleImage($dest_width, $dest_height);
+ } catch (Exception $e) {
+ // Imagick couldn't use the data
+ return false;
+ }
} while ($this->image->nextImage());
// These may not be necessary anymore
return true;
}
+ /**
+ * Convert a GIF to a PNG to make it static
+ */
+ public function toStatic()
+ {
+ if ($this->type != 'image/gif') {
+ return;
+ }
+
+ if ($this->isImagick()) {
+ $this->type == 'image/png';
+ $this->image->setFormat('png');
+ }
+ }
+
/**
* @param integer $max maximum
* @param integer $x x coordinate
}
/**
- * @param string $path file path
- * @return mixed
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- public function saveToFilePath($path)
- {
- if (!$this->isValid()) {
- return false;
- }
-
- $string = $this->asString();
-
- $a = \get_app();
-
- $stamp1 = microtime(true);
- file_put_contents($path, $string);
- $a->getProfiler()->saveTimestamp($stamp1, "file", System::callstack());
- }
-
- /**
- * @brief Magic method allowing string casting of an Image object
+ * Magic method allowing string casting of an Image object
*
* Ex: $data = $Image->asString();
* can be replaced by
}
if ($this->isImagick()) {
- /* Clean it */
- $this->image = $this->image->deconstructImages();
- $string = $this->image->getImagesBlob();
- return $string;
+ try {
+ /* Clean it */
+ $this->image = $this->image->deconstructImages();
+ $string = $this->image->getImagesBlob();
+ return $string;
+ } catch (Exception $e) {
+ return false;
+ }
}
ob_start();
switch ($this->getType()) {
case "image/png":
- $quality = Config::get('system', 'png_quality');
- if ((!$quality) || ($quality > 9)) {
- $quality = PNG_QUALITY;
- }
+ $quality = DI::config()->get('system', 'png_quality');
imagepng($this->image, null, $quality);
break;
case "image/jpeg":
- $quality = Config::get('system', 'jpeg_quality');
- if ((!$quality) || ($quality > 100)) {
- $quality = JPEG_QUALITY;
- }
+ $quality = DI::config()->get('system', 'jpeg_quality');
imagejpeg($this->image, null, $quality);
}
$string = ob_get_contents();
return $string;
}
-
- /**
- * Guess image mimetype from filename or from Content-Type header
- *
- * @param string $filename Image filename
- * @param boolean $fromcurl Check Content-Type header from curl request
- * @param string $header passed headers to take into account
- *
- * @return object
- * @throws \ImagickException
- */
- public static function guessType($filename, $fromcurl = false, $header = '')
- {
- Logger::log('Image: guessType: '.$filename . ($fromcurl?' from curl headers':''), Logger::DEBUG);
- $type = null;
- if ($fromcurl) {
- $headers=[];
- $h = explode("\n", $header);
- foreach ($h as $l) {
- $data = array_map("trim", explode(":", trim($l), 2));
- if (count($data) > 1) {
- list($k,$v) = $data;
- $headers[$k] = $v;
- }
- }
- if (array_key_exists('Content-Type', $headers))
- $type = $headers['Content-Type'];
- }
- if (is_null($type)) {
- // Guessing from extension? Isn't that... dangerous?
- if (class_exists('Imagick') && file_exists($filename) && is_readable($filename)) {
- /**
- * Well, this not much better,
- * but at least it comes from the data inside the image,
- * we won't be tricked by a manipulated extension
- */
- $image = new Imagick($filename);
- $type = $image->getImageMimeType();
- $image->setInterlaceScheme(Imagick::INTERLACE_PLANE);
- } else {
- $ext = pathinfo($filename, PATHINFO_EXTENSION);
- $types = self::supportedTypes();
- $type = "image/jpeg";
- foreach ($types as $m => $e) {
- if ($ext == $e) {
- $type = $m;
- }
- }
- }
- }
- Logger::log('Image: guessType: type='.$type, Logger::DEBUG);
- return $type;
- }
-
- /**
- * @param string $url url
- * @return object
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- public static function getInfoFromURL($url)
- {
- $data = [];
-
- if (empty($url)) {
- return $data;
- }
-
- $data = Cache::get($url);
-
- if (is_null($data) || !$data || !is_array($data)) {
- $img_str = Network::fetchUrl($url, true, $redirects, 4);
-
- if (!$img_str) {
- return false;
- }
-
- $filesize = strlen($img_str);
-
- try {
- if (function_exists("getimagesizefromstring")) {
- $data = @getimagesizefromstring($img_str);
- } else {
- $tempfile = tempnam(get_temppath(), "cache");
-
- $a = \get_app();
- $stamp1 = microtime(true);
- file_put_contents($tempfile, $img_str);
- $a->getProfiler()->saveTimestamp($stamp1, "file", System::callstack());
-
- $data = getimagesize($tempfile);
- unlink($tempfile);
- }
- } catch (Exception $e) {
- return false;
- }
-
- if ($data) {
- $data["size"] = $filesize;
- }
-
- Cache::set($url, $data);
- }
-
- return $data;
- }
-
- /**
- * @param integer $width width
- * @param integer $height height
- * @param integer $max max
- * @return array
- */
- public static function getScalingDimensions($width, $height, $max)
- {
- if ((!$width) || (!$height)) {
- return false;
- }
-
- if ($width > $max && $height > $max) {
- // very tall image (greater than 16:9)
- // constrain the width - let the height float.
-
- if ((($height * 9) / 16) > $width) {
- $dest_width = $max;
- $dest_height = intval(($height * $max) / $width);
- } elseif ($width > $height) {
- // else constrain both dimensions
- $dest_width = $max;
- $dest_height = intval(($height * $max) / $width);
- } else {
- $dest_width = intval(($width * $max) / $height);
- $dest_height = $max;
- }
- } else {
- if ($width > $max) {
- $dest_width = $max;
- $dest_height = intval(($height * $max) / $width);
- } else {
- if ($height > $max) {
- // very tall image (greater than 16:9)
- // but width is OK - don't do anything
-
- if ((($height * 9) / 16) > $width) {
- $dest_width = $width;
- $dest_height = $height;
- } else {
- $dest_width = intval(($width * $max) / $height);
- $dest_height = $max;
- }
- } else {
- $dest_width = $width;
- $dest_height = $height;
- }
- }
- }
- return ["width" => $dest_width, "height" => $dest_height];
- }
}
projects / friendica.git / blobdiff