535 lines
15 KiB
PHP
535 lines
15 KiB
PHP
<?php
|
|
|
|
namespace Zotlabs\Photo;
|
|
|
|
/**
|
|
* @brief Abstract photo driver class.
|
|
*
|
|
* Inheritance seems not to be the best design pattern for such photo drivers.
|
|
*/
|
|
abstract class PhotoDriver {
|
|
|
|
/**
|
|
* @brief This variable keeps the image.
|
|
*
|
|
* For GD it is a PHP image resource.
|
|
* For ImageMagick it is an \Imagick object.
|
|
*
|
|
* @var resource|\Imagick
|
|
*/
|
|
protected $image;
|
|
|
|
/**
|
|
* @var integer
|
|
*/
|
|
protected $width;
|
|
|
|
/**
|
|
* @var integer
|
|
*/
|
|
protected $height;
|
|
|
|
/**
|
|
* @var boolean
|
|
*/
|
|
protected $valid;
|
|
|
|
/**
|
|
* @brief The mimetype of the image.
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $type;
|
|
|
|
/**
|
|
* @brief Supported mimetypes by the used photo driver.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $types;
|
|
|
|
/**
|
|
* @brief Return an array with supported mimetypes.
|
|
*
|
|
* @return array
|
|
* Associative array with mimetype as key and file extension as value.
|
|
*/
|
|
abstract public function supportedTypes();
|
|
|
|
abstract protected function load($data, $type);
|
|
|
|
abstract protected function destroy();
|
|
|
|
abstract protected function setDimensions();
|
|
|
|
/**
|
|
* @brief Return the current image.
|
|
*
|
|
* @fixme Shouldn't his method be protected, because outside of the current
|
|
* driver it makes no sense at all because of the different return values.
|
|
*
|
|
* @return boolean|resource|\Imagick
|
|
* false on failure, a PHP image resource for GD driver, an \Imagick object
|
|
* for ImageMagick driver.
|
|
*/
|
|
abstract public function getImage();
|
|
|
|
abstract public function doScaleImage($new_width, $new_height);
|
|
|
|
abstract public function rotate($degrees);
|
|
|
|
abstract public function flip($horiz = true, $vert = false);
|
|
|
|
/**
|
|
* @brief Crops the image.
|
|
*
|
|
* @param int $maxx width of the new image
|
|
* @param int $maxy height of the new image
|
|
* @param int $x x-offset for region
|
|
* @param int $y y-offset for region
|
|
* @param int $w width of region
|
|
* @param int $h height of region
|
|
*
|
|
* @return boolean|void false on failure
|
|
*/
|
|
abstract public function cropImageRect($maxx, $maxy, $x, $y, $w, $h);
|
|
|
|
/**
|
|
* @brief Return a binary string from the image resource.
|
|
*
|
|
* @return string A Binary String.
|
|
*/
|
|
abstract public function imageString();
|
|
|
|
abstract public function clearexif();
|
|
|
|
|
|
/**
|
|
* @brief PhotoDriver constructor.
|
|
*
|
|
* @param string $data Image
|
|
* @param string $type mimetype
|
|
*/
|
|
public function __construct($data, $type = '') {
|
|
$this->types = $this->supportedTypes();
|
|
if(! array_key_exists($type, $this->types)) {
|
|
$type = 'image/jpeg';
|
|
}
|
|
$this->type = $type;
|
|
$this->valid = false;
|
|
$this->load($data, $type);
|
|
}
|
|
|
|
public function __destruct() {
|
|
if($this->is_valid())
|
|
$this->destroy();
|
|
}
|
|
|
|
/**
|
|
* @brief Is it a valid image object.
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function is_valid() {
|
|
return $this->valid;
|
|
}
|
|
|
|
/**
|
|
* @brief Get the width of the image.
|
|
*
|
|
* @return boolean|number Width of image in pixels, or false on failure
|
|
*/
|
|
public function getWidth() {
|
|
if(! $this->is_valid())
|
|
return false;
|
|
|
|
return $this->width;
|
|
}
|
|
|
|
/**
|
|
* @brief Get the height of the image.
|
|
*
|
|
* @return boolean|number Height of image in pixels, or false on failure
|
|
*/
|
|
public function getHeight() {
|
|
if(! $this->is_valid())
|
|
return false;
|
|
|
|
return $this->height;
|
|
}
|
|
|
|
/**
|
|
* @brief Saves the image resource to a file in filesystem.
|
|
*
|
|
* @param string $path Path and filename where to save the image
|
|
* @return boolean False on failure, otherwise true
|
|
*/
|
|
public function saveImage($path) {
|
|
if(! $this->is_valid())
|
|
return false;
|
|
|
|
return (file_put_contents($path, $this->imageString()) ? true : false);
|
|
}
|
|
|
|
/**
|
|
* @brief Return mimetype of the image resource.
|
|
*
|
|
* @return boolean|string False on failure, otherwise mimetype.
|
|
*/
|
|
public function getType() {
|
|
if(! $this->is_valid())
|
|
return false;
|
|
|
|
return $this->type;
|
|
}
|
|
|
|
/**
|
|
* @brief Return file extension of the image resource.
|
|
*
|
|
* @return boolean|string False on failure, otherwise file extension.
|
|
*/
|
|
public function getExt() {
|
|
if(! $this->is_valid())
|
|
return false;
|
|
|
|
return $this->types[$this->getType()];
|
|
}
|
|
|
|
/**
|
|
* @brief Scale image to max pixel size in either dimension.
|
|
*
|
|
* @param int $max maximum pixel size in either dimension
|
|
* @param boolean $float_height (optional)
|
|
* If true allow height to float to any length on tall images, constraining
|
|
* only the width
|
|
* @return boolean|void false on failure, otherwise void
|
|
*/
|
|
public function scaleImage($max, $float_height = true) {
|
|
if(! $this->is_valid())
|
|
return false;
|
|
|
|
$width = $this->width;
|
|
$height = $this->height;
|
|
|
|
$dest_width = $dest_height = 0;
|
|
|
|
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) > $width) && ($float_height)) {
|
|
$dest_width = $max;
|
|
$dest_height = intval(($height * $max) / $width);
|
|
} // else constrain both dimensions
|
|
elseif($width > $height) {
|
|
$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) > $width) && ($float_height)) {
|
|
$dest_width = $width;
|
|
$dest_height = $height;
|
|
} else {
|
|
$dest_width = intval(($width * $max) / $height);
|
|
$dest_height = $max;
|
|
}
|
|
} else {
|
|
$dest_width = $width;
|
|
$dest_height = $height;
|
|
}
|
|
}
|
|
}
|
|
$this->doScaleImage($dest_width, $dest_height);
|
|
}
|
|
|
|
public function scaleImageUp($min) {
|
|
if(! $this->is_valid()) {
|
|
return false;
|
|
}
|
|
|
|
$width = $this->width;
|
|
$height = $this->height;
|
|
|
|
$dest_width = $dest_height = 0;
|
|
|
|
if((! $width) || (! $height))
|
|
return false;
|
|
|
|
if($width < $min && $height < $min) {
|
|
if($width > $height) {
|
|
$dest_width = $min;
|
|
$dest_height = intval(($height * $min) / $width);
|
|
} else {
|
|
$dest_width = intval(($width * $min) / $height);
|
|
$dest_height = $min;
|
|
}
|
|
} else {
|
|
if($width < $min) {
|
|
$dest_width = $min;
|
|
$dest_height = intval(($height * $min) / $width);
|
|
} else {
|
|
if($height < $min) {
|
|
$dest_width = intval(($width * $min) / $height);
|
|
$dest_height = $min;
|
|
} else {
|
|
$dest_width = $width;
|
|
$dest_height = $height;
|
|
}
|
|
}
|
|
}
|
|
$this->doScaleImage($dest_width, $dest_height);
|
|
}
|
|
|
|
/**
|
|
* @brief Scales image to a square.
|
|
*
|
|
* @param int $dim Pixel of square image
|
|
* @return boolean|void false on failure, otherwise void
|
|
*/
|
|
public function scaleImageSquare($dim) {
|
|
if(! $this->is_valid())
|
|
return false;
|
|
|
|
$this->doScaleImage($dim, $dim);
|
|
}
|
|
|
|
/**
|
|
* @brief Crops a square image.
|
|
*
|
|
* @see cropImageRect()
|
|
*
|
|
* @param int $max size of the new image
|
|
* @param int $x x-offset for region
|
|
* @param int $y y-offset for region
|
|
* @param int $w width of region
|
|
* @param int $h height of region
|
|
*
|
|
* @return boolean|void false on failure
|
|
*/
|
|
public function cropImage($max, $x, $y, $w, $h) {
|
|
if(! $this->is_valid())
|
|
return false;
|
|
|
|
$this->cropImageRect($max, $max, $x, $y, $w, $h);
|
|
}
|
|
|
|
/**
|
|
* @brief Reads exif data from a given filename.
|
|
*
|
|
* @param string $filename
|
|
* @return boolean|array
|
|
*/
|
|
public function exif($filename) {
|
|
if((! function_exists('exif_read_data'))
|
|
|| (! in_array($this->getType(), ['image/jpeg', 'image/tiff'])))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* PHP 7.2 allows you to use a stream resource, which should reduce/avoid
|
|
* memory exhaustion on large images.
|
|
*/
|
|
|
|
if(version_compare(PHP_VERSION, '7.2.0') >= 0) {
|
|
$f = @fopen($filename, 'rb');
|
|
} else {
|
|
$f = $filename;
|
|
}
|
|
|
|
if($f) {
|
|
return @exif_read_data($f, null, true);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @brief Orients current image based on exif orientation information.
|
|
*
|
|
* @param array $exif
|
|
* @return boolean true if oriented, otherwise false
|
|
*/
|
|
public function orient($exif) {
|
|
if(! ($this->is_valid() && $exif)) {
|
|
return false;
|
|
}
|
|
|
|
$ort = ((array_key_exists('IFD0', $exif)) ? $exif['IFD0']['Orientation'] : $exif['Orientation']);
|
|
|
|
if(! $ort) {
|
|
return false;
|
|
}
|
|
|
|
switch($ort) {
|
|
case 1 : // nothing
|
|
break;
|
|
case 2 : // horizontal flip
|
|
$this->flip();
|
|
break;
|
|
case 3 : // 180 rotate left
|
|
$this->rotate(180);
|
|
break;
|
|
case 4 : // vertical flip
|
|
$this->flip(false, true);
|
|
break;
|
|
case 5 : // vertical flip + 90 rotate right
|
|
$this->flip(false, true);
|
|
$this->rotate(-90);
|
|
break;
|
|
case 6 : // 90 rotate right
|
|
$this->rotate(-90);
|
|
break;
|
|
case 7 : // horizontal flip + 90 rotate right
|
|
$this->flip();
|
|
$this->rotate(-90);
|
|
break;
|
|
case 8 : // 90 rotate left
|
|
$this->rotate(90);
|
|
break;
|
|
default :
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Save photo to database.
|
|
*
|
|
* @param array $arr
|
|
* @param boolean $skipcheck (optional) default false
|
|
* @return boolean|array
|
|
*/
|
|
public function save($arr, $skipcheck = false) {
|
|
if(! ($skipcheck || $this->is_valid())) {
|
|
logger('Attempt to store invalid photo.');
|
|
return false;
|
|
}
|
|
|
|
$p = [];
|
|
|
|
$p['aid'] = ((intval($arr['aid'])) ? intval($arr['aid']) : 0);
|
|
$p['uid'] = ((intval($arr['uid'])) ? intval($arr['uid']) : 0);
|
|
$p['xchan'] = (($arr['xchan']) ? $arr['xchan'] : '');
|
|
$p['resource_id'] = (($arr['resource_id']) ? $arr['resource_id'] : '');
|
|
$p['filename'] = (($arr['filename']) ? $arr['filename'] : '');
|
|
$p['mimetype'] = (($arr['mimetype']) ? $arr['mimetype'] : $this->getType());
|
|
$p['album'] = (($arr['album']) ? $arr['album'] : '');
|
|
$p['imgscale'] = ((intval($arr['imgscale'])) ? intval($arr['imgscale']) : 0);
|
|
$p['allow_cid'] = (($arr['allow_cid']) ? $arr['allow_cid'] : '');
|
|
$p['allow_gid'] = (($arr['allow_gid']) ? $arr['allow_gid'] : '');
|
|
$p['deny_cid'] = (($arr['deny_cid']) ? $arr['deny_cid'] : '');
|
|
$p['deny_gid'] = (($arr['deny_gid']) ? $arr['deny_gid'] : '');
|
|
$p['edited'] = (($arr['edited']) ? $arr['edited'] : datetime_convert());
|
|
$p['title'] = (($arr['title']) ? $arr['title'] : '');
|
|
$p['description'] = (($arr['description']) ? $arr['description'] : '');
|
|
$p['photo_usage'] = intval($arr['photo_usage']);
|
|
$p['os_storage'] = intval($arr['os_storage']);
|
|
$p['os_path'] = $arr['os_path'];
|
|
$p['os_syspath'] = ((array_key_exists('os_syspath', $arr)) ? $arr['os_syspath'] : '');
|
|
$p['display_path'] = (($arr['display_path']) ? $arr['display_path'] : '');
|
|
$p['width'] = (($arr['width']) ? $arr['width'] : $this->getWidth());
|
|
$p['height'] = (($arr['height']) ? $arr['height'] : $this->getHeight());
|
|
$p['expires'] = (($arr['expires']) ? $arr['expires'] : gmdate('Y-m-d H:i:s', time() + get_config('system', 'photo_cache_time', 86400)));
|
|
$p['profile'] = ((array_key_exists('profile', $arr)) ? intval($arr['profile']) : 0);
|
|
|
|
if(! intval($p['imgscale']))
|
|
logger('save: ' . print_r($arr, true), LOGGER_DATA);
|
|
|
|
$x = q("select id, created from photo where resource_id = '%s' and uid = %d and xchan = '%s' and imgscale = %d limit 1", dbesc($p['resource_id']), intval($p['uid']), dbesc($p['xchan']), intval($p['imgscale']));
|
|
|
|
if($x) {
|
|
$p['created'] = (($x['created']) ? $x['created'] : $p['edited']);
|
|
$r = q("UPDATE photo set
|
|
aid = %d,
|
|
uid = %d,
|
|
xchan = '%s',
|
|
resource_id = '%s',
|
|
created = '%s',
|
|
edited = '%s',
|
|
filename = '%s',
|
|
mimetype = '%s',
|
|
album = '%s',
|
|
height = %d,
|
|
width = %d,
|
|
content = '%s',
|
|
os_storage = %d,
|
|
filesize = %d,
|
|
imgscale = %d,
|
|
photo_usage = %d,
|
|
title = '%s',
|
|
description = '%s',
|
|
os_path = '%s',
|
|
display_path = '%s',
|
|
allow_cid = '%s',
|
|
allow_gid = '%s',
|
|
deny_cid = '%s',
|
|
deny_gid = '%s',
|
|
expires = '%s',
|
|
profile = %d
|
|
where id = %d",
|
|
intval($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($p['profile']), intval($x[0]['id']));
|
|
} else {
|
|
$p['created'] = (($arr['created']) ? $arr['created'] : $p['edited']);
|
|
$r = q("INSERT INTO photo
|
|
( aid, uid, xchan, resource_id, created, edited, filename, mimetype, album, height, width, content, os_storage, filesize, imgscale, photo_usage, title, description, os_path, display_path, allow_cid, allow_gid, deny_cid, deny_gid, expires, profile )
|
|
VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', %d, %d, %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d)", intval($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 $arr
|
|
* @param scale int
|
|
* @return boolean
|
|
*/
|
|
public function storeThumbnail($arr, $scale = 0) {
|
|
|
|
// We only process thumbnails here
|
|
if($scale == 0)
|
|
return false;
|
|
|
|
$arr['imgscale'] = $scale;
|
|
|
|
if(boolval(get_config('system','filesystem_storage_thumbnails', 0))) {
|
|
$channel = channelx_by_n($arr['uid']);
|
|
$arr['os_storage'] = 1;
|
|
$arr['os_syspath'] = 'store/' . $channel['channel_address'] . '/' . $arr['os_path'] . '-' . $scale;
|
|
if(! $this->saveImage($arr['os_syspath']))
|
|
return false;
|
|
}
|
|
else
|
|
$arr['os_storage'] = 0;
|
|
|
|
if(! $this->save($arr)) {
|
|
if(array_key_exists('os_syspath', $arr))
|
|
@unlink($arr['os_syspath']);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
}
|