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577 lines
18 KiB
PHP
577 lines
18 KiB
PHP
<?php
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namespace Code\Photo;
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use App;
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use Imagick;
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use Code\Lib\Channel;
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/**
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* @brief Abstract photo driver class.
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*
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* Inheritance seems not to be the best design pattern for such photo drivers.
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*/
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abstract class PhotoDriver
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{
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/**
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* @brief This variable keeps the image.
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*
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* For GD it is a PHP image resource.
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* For ImageMagick it is an \Imagick object.
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*
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* @var resource|Imagick
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*/
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protected $image;
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/**
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* @var int
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*/
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protected $width;
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/**
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* @var int
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*/
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protected $height;
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/**
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* @var bool
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*/
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protected $valid;
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/**
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* @brief The mimetype of the image.
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*
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* @var string
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*/
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protected $type;
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/**
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* @brief Supported mimetypes by the used photo driver.
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*
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* @var array
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*/
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protected $types;
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/**
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* @brief Return an array with supported mimetypes.
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*
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* @return array
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* Associative array with mimetype as key and file extension as value.
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*/
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abstract public function supportedTypes();
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abstract protected function load($data, $type);
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abstract protected function destroy();
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abstract protected function setDimensions();
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/**
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* @brief Return the current image.
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*
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* @fixme Shouldn't his method be protected, because outside of the current
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* driver it makes no sense at all because of the different return values.
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*
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* @return bool|resource|Imagick
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* false on failure, a PHP image resource for GD driver, an \Imagick object
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* for ImageMagick driver.
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*/
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abstract public function getImage();
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abstract public function doScaleImage($new_width, $new_height);
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abstract public function rotate($degrees);
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abstract public function flip($horiz = true, $vert = false);
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/**
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* @brief Crops the image.
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*
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* @param int $maxx width of the new image
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* @param int $maxy height of the new image
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* @param int $x x-offset for region
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* @param int $y y-offset for region
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* @param int $w width of region
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* @param int $h height of region
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*
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* @return bool|void false on failure
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*/
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abstract public function cropImageRect($maxx, $maxy, $x, $y, $w, $h);
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/**
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* @brief Return a binary string from the image resource.
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*
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* @return string A Binary String.
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*/
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abstract public function imageString($animations = true);
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abstract public function clearexif();
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/**
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* @brief PhotoDriver constructor.
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*
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* @param string $data Image
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* @param string $type mimetype
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*/
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public function __construct($data, $type = '')
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{
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$this->types = $this->supportedTypes();
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if (! array_key_exists($type, $this->types)) {
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$type = 'image/jpeg';
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}
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$this->type = $type;
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$this->valid = false;
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$this->load($data, $type);
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}
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public function __destruct()
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{
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if ($this->is_valid()) {
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$this->destroy();
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}
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}
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/**
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* @brief Is it a valid image object.
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*
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* @return bool
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*/
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public function is_valid()
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{
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return $this->valid;
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}
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/**
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* @brief Get the width of the image.
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*
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* @return bool|number Width of image in pixels, or false on failure
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*/
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public function getWidth()
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{
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if (! $this->is_valid()) {
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return false;
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}
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return $this->width;
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}
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/**
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* @brief Get the height of the image.
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*
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* @return bool|number Height of image in pixels, or false on failure
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*/
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public function getHeight()
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{
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if (! $this->is_valid()) {
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return false;
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}
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return $this->height;
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}
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/**
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* @brief Saves the image resource to a file in filesystem.
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*
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* @param string $path Path and filename where to save the image
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* @return bool False on failure, otherwise true
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*/
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public function saveImage($path, $animated = true)
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{
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if (! $this->is_valid()) {
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return false;
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}
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return (file_put_contents($path, $this->imageString($animated)) ? true : false);
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}
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/**
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* @brief Return mimetype of the image resource.
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*
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* @return bool|string False on failure, otherwise mimetype.
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*/
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public function getType()
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{
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if (! $this->is_valid()) {
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return false;
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}
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return $this->type;
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}
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/**
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* @brief Return file extension of the image resource.
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*
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* @return bool|string False on failure, otherwise file extension.
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*/
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public function getExt()
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{
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if (! $this->is_valid()) {
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return false;
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}
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return $this->types[$this->getType()];
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}
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/**
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* @brief Scale image to max pixel size in either dimension.
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*
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* @param int $max maximum pixel size in either dimension
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* @param bool $float_height (optional)
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* If true allow height to float to any length on tall images, constraining
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* only the width
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* @return bool|void false on failure, otherwise void
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*/
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public function scaleImage($max, $float_height = true)
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{
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if (! $this->is_valid()) {
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return false;
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}
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$width = $this->width;
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$height = $this->height;
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$dest_width = $dest_height = 0;
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if (! ($width && $height)) {
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return false;
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}
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if ($width > $max && $height > $max) {
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// very tall image (greater than 16:9)
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// constrain the width - let the height float.
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if (((($height * 9) / 16) > $width) && ($float_height)) {
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$dest_width = $max;
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$dest_height = intval(($height * $max) / $width);
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} // else constrain both dimensions
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elseif ($width > $height) {
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$dest_width = $max;
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$dest_height = intval(($height * $max) / $width);
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} else {
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$dest_width = intval(($width * $max) / $height);
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$dest_height = $max;
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}
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} else {
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if ($width > $max) {
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$dest_width = $max;
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$dest_height = intval(($height * $max) / $width);
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} else {
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if ($height > $max) {
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// very tall image (greater than 16:9)
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// but width is OK - don't do anything
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if (((($height * 9) / 16) > $width) && ($float_height)) {
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$dest_width = $width;
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$dest_height = $height;
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} else {
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$dest_width = intval(($width * $max) / $height);
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$dest_height = $max;
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}
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} else {
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$dest_width = $width;
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$dest_height = $height;
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}
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}
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}
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$this->doScaleImage($dest_width, $dest_height);
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}
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public function scaleImageUp($min)
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{
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if (! $this->is_valid()) {
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return false;
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}
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$width = $this->width;
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$height = $this->height;
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$dest_width = $dest_height = 0;
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if (! ($width && $height)) {
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return false;
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}
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if ($width < $min && $height < $min) {
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if ($width > $height) {
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$dest_width = $min;
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$dest_height = intval(($height * $min) / $width);
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} else {
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$dest_width = intval(($width * $min) / $height);
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$dest_height = $min;
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}
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} else {
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if ($width < $min) {
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$dest_width = $min;
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$dest_height = intval(($height * $min) / $width);
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} else {
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if ($height < $min) {
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$dest_width = intval(($width * $min) / $height);
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$dest_height = $min;
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} else {
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$dest_width = $width;
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$dest_height = $height;
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}
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}
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}
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$this->doScaleImage($dest_width, $dest_height);
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return true;
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}
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/**
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* @brief Scales image to a square.
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*
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* @param int $dim Pixel of square image
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* @return bool|void false on failure, otherwise void
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*/
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public function scaleImageSquare($dim)
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{
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if (! $this->is_valid()) {
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return false;
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}
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$this->doScaleImage($dim, $dim);
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}
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/**
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* @brief Crops a square image.
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*
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* @see cropImageRect()
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*
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* @param int $max size of the new image
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* @param int $x x-offset for region
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* @param int $y y-offset for region
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* @param int $w width of region
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* @param int $h height of region
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*
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* @return bool|void false on failure
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*/
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public function cropImage($max, $x, $y, $w, $h)
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{
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if (! $this->is_valid()) {
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return false;
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}
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$this->cropImageRect($max, $max, $x, $y, $w, $h);
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}
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/**
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* @brief Reads exif data from a given filename.
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*
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* @param string $filename
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* @return bool|array
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*/
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public function exif($filename)
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{
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if ((! function_exists('exif_read_data')) || (! in_array($this->getType(), ['image/jpeg', 'image/tiff']))) {
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return false;
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}
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$f = @fopen($filename, 'rb');
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if ($f) {
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// exif_read_data accepts a stream resource in php > 7.2
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$x = @exif_read_data($f, null, true);
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fclose($f);
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return $x;
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}
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return false;
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}
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/**
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* @brief Orients current image based on exif orientation information.
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*
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* @param array $exif
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* @return bool true if oriented, otherwise false
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*/
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public function orient($exif)
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{
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if (! ($this->is_valid() && $exif)) {
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return false;
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}
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$ort = ((array_key_exists('IFD0', $exif)) ? $exif['IFD0']['Orientation'] : $exif['Orientation']);
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if (! $ort) {
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return false;
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}
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switch ($ort) {
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case 1: // nothing
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break;
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case 2: // horizontal flip
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$this->flip();
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break;
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case 3: // 180 rotate left
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$this->rotate(180);
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break;
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case 4: // vertical flip
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$this->flip(false, true);
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break;
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case 5: // vertical flip + 90 rotate right
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$this->flip(false, true);
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$this->rotate(-90);
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break;
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case 6: // 90 rotate right
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$this->rotate(-90);
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break;
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case 7: // horizontal flip + 90 rotate right
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$this->flip();
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$this->rotate(-90);
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break;
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case 8: // 90 rotate left
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$this->rotate(90);
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break;
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default:
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break;
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}
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return true;
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}
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/**
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* @brief Save photo to database.
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*
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* @param array $arr
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* @param bool $skipcheck (optional) default false
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* @return bool|array
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*/
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public function save($arr, $skipcheck = false)
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{
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if (! ($skipcheck || $this->is_valid())) {
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logger('Attempt to store invalid photo.');
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return false;
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}
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$p = [];
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$p['aid'] = ((intval($arr['aid'])) ? intval($arr['aid']) : 0);
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$p['uid'] = ((intval($arr['uid'])) ? intval($arr['uid']) : 0);
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$p['xchan'] = (($arr['xchan']) ? $arr['xchan'] : '');
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$p['resource_id'] = (($arr['resource_id']) ? $arr['resource_id'] : '');
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$p['filename'] = (($arr['filename']) ? $arr['filename'] : '');
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$p['mimetype'] = (($arr['mimetype']) ? $arr['mimetype'] : $this->getType());
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$p['album'] = (($arr['album']) ? $arr['album'] : '');
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$p['imgscale'] = ((intval($arr['imgscale'])) ? intval($arr['imgscale']) : 0);
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$p['allow_cid'] = (($arr['allow_cid']) ? $arr['allow_cid'] : '');
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$p['allow_gid'] = (($arr['allow_gid']) ? $arr['allow_gid'] : '');
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$p['deny_cid'] = (($arr['deny_cid']) ? $arr['deny_cid'] : '');
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$p['deny_gid'] = (($arr['deny_gid']) ? $arr['deny_gid'] : '');
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$p['edited'] = (($arr['edited']) ? $arr['edited'] : datetime_convert());
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$p['title'] = (($arr['title']) ? $arr['title'] : '');
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$p['description'] = (($arr['description']) ? $arr['description'] : '');
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$p['photo_usage'] = intval($arr['photo_usage']);
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$p['os_storage'] = ((isset($arr['os_storage'])) ? intval($arr['os_storage']) : 1);
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$p['os_path'] = $arr['os_path'];
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$p['os_syspath'] = ((array_key_exists('os_syspath', $arr)) ? $arr['os_syspath'] : '');
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$p['display_path'] = (($arr['display_path']) ? $arr['display_path'] : '');
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$p['width'] = (($arr['width']) ? $arr['width'] : $this->getWidth());
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$p['height'] = (($arr['height']) ? $arr['height'] : $this->getHeight());
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$p['expires'] = (($arr['expires']) ? $arr['expires'] : gmdate('Y-m-d H:i:s', time() + get_config('system', 'photo_cache_time', 86400)));
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$p['profile'] = ((array_key_exists('profile', $arr)) ? intval($arr['profile']) : 0);
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if (! intval($p['imgscale'])) {
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logger('save: ' . print_r($arr, true), LOGGER_DATA);
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}
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$x = q("select id, created from photo where resource_id = '%s' and uid = %d and xchan = '%s' and imgscale = %d limit 1", dbesc($p['resource_id']), intval($p['uid']), dbesc($p['xchan']), intval($p['imgscale']));
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if ($x) {
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$p['created'] = (($x['created']) ? $x['created'] : $p['edited']);
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$r = q(
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"UPDATE photo set
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aid = %d,
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uid = %d,
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xchan = '%s',
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resource_id = '%s',
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created = '%s',
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edited = '%s',
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filename = '%s',
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mimetype = '%s',
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album = '%s',
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height = %d,
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width = %d,
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content = '%s',
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os_storage = %d,
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filesize = %d,
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imgscale = %d,
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photo_usage = %d,
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title = '%s',
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description = '%s',
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os_path = '%s',
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display_path = '%s',
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allow_cid = '%s',
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allow_gid = '%s',
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deny_cid = '%s',
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deny_gid = '%s',
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expires = '%s',
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profile = %d
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where id = %d",
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intval($p['aid']),
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intval($p['uid']),
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dbesc($p['xchan']),
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dbesc($p['resource_id']),
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dbescdate($p['created']),
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dbescdate($p['edited']),
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dbesc(basename($p['filename'])),
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dbesc($p['mimetype']),
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dbesc($p['album']),
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intval($p['height']),
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intval($p['width']),
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(intval($p['os_storage']) ? dbescbin($p['os_syspath']) : dbescbin($this->imageString())),
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intval($p['os_storage']),
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(intval($p['os_storage']) ? @filesize($p['os_syspath']) : strlen($this->imageString())),
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intval($p['imgscale']),
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intval($p['photo_usage']),
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dbesc($p['title']),
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dbesc($p['description']),
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dbesc($p['os_path']),
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dbesc($p['display_path']),
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dbesc($p['allow_cid']),
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dbesc($p['allow_gid']),
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dbesc($p['deny_cid']),
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dbesc($p['deny_gid']),
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dbescdate($p['expires']),
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intval($p['profile']),
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intval($x[0]['id'])
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);
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} else {
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$p['created'] = (($arr['created']) ? $arr['created'] : $p['edited']);
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$r = q("INSERT INTO photo
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( aid, uid, xchan, resource_id, created, edited, filename, mimetype, album, height, width, content, os_storage, filesize, imgscale, photo_usage, title, description, os_path, display_path, allow_cid, allow_gid, deny_cid, deny_gid, expires, profile )
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VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', %d, %d, %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d)", intval($p['aid']), intval($p['uid']), dbesc($p['xchan']), dbesc($p['resource_id']), dbescdate($p['created']), dbescdate($p['edited']), dbesc(basename($p['filename'])), dbesc($p['mimetype']), dbesc($p['album']), intval($p['height']), intval($p['width']), (intval($p['os_storage']) ? dbescbin($p['os_syspath']) : dbescbin($this->imageString())), intval($p['os_storage']), (intval($p['os_storage']) ? @filesize($p['os_syspath']) : strlen($this->imageString())), intval($p['imgscale']), intval($p['photo_usage']), dbesc($p['title']), dbesc($p['description']), dbesc($p['os_path']), dbesc($p['display_path']), dbesc($p['allow_cid']), dbesc($p['allow_gid']), dbesc($p['deny_cid']), dbesc($p['deny_gid']), dbescdate($p['expires']), intval($p['profile']));
|
|
}
|
|
logger('Photo save imgscale ' . $p['imgscale'] . ' returned ' . intval($r));
|
|
|
|
return $r;
|
|
}
|
|
|
|
/**
|
|
* @brief Stores thumbnail to database or filesystem.
|
|
*
|
|
* @param array $arr
|
|
* @param int $scale
|
|
* @param bool $animated
|
|
* @return bool|array
|
|
*/
|
|
|
|
public function storeThumbnail($arr, $scale = 0, $animated = true)
|
|
{
|
|
|
|
$arr['imgscale'] = $scale;
|
|
|
|
if (boolval(get_config('system', 'filesystem_storage_thumbnails', 1)) && $scale > 0) {
|
|
$channel = Channel::from_id($arr['uid']);
|
|
$arr['os_storage'] = 1;
|
|
$arr['os_syspath'] = 'store/' . $channel['channel_address'] . '/' . $arr['os_path'] . '-' . $scale;
|
|
if (! $this->saveImage($arr['os_syspath'], $animated)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (! $this->save($arr)) {
|
|
if (array_key_exists('os_syspath', $arr)) {
|
|
@unlink($arr['os_syspath']);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|