454 lines
13 KiB
PHP
454 lines
13 KiB
PHP
<?php
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if(! class_exists("Photo")) {
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class Photo {
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private $image;
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private $ext;
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/**
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* supported mimetypes and corresponding file extensions
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*/
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static function supportedTypes() {
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/**
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* Imagick::queryFormats won't help us a lot there...
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* At least, not yet, other parts of friendica uses this array
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*/
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$t = array(
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'image/jpeg' => 'jpg',
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'image/png' => 'png',
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'image/gif' => 'gif'
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);
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return $t;
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}
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public function __construct($data, $type=null) {
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$this->image = new Imagick();
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$this->image->readImageBlob($data);
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// If it is a gif, it may be animated, get it ready for any future operations
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if($this->image->getFormat() !== "GIF") $this->image = $this->image->coalesceImages();
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$this->ext = strtolower($this->image->getImageFormat());
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}
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public function __destruct() {
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if($this->image) {
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$this->image->clear();
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$this->image->destroy();
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}
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}
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public function is_valid() {
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return ($this->image !== FALSE);
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}
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public function getWidth() {
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if(!$this->is_valid())
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return FALSE;
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return $this->image->getImageWidth();
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}
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public function getHeight() {
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if(!$this->is_valid())
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return FALSE;
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return $this->image->getImageHeight();
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}
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public function getImage() {
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if(!$this->is_valid())
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return FALSE;
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/* Clean it */
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$this->image = $this->image->deconstructImages();
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return $this->image;
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}
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public function getType() {
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if(!$this->is_valid())
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return FALSE;
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// This should do the trick (see supportedTypes above)
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return 'image/'. $this->getExt();
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}
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public function getExt() {
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if(!$this->is_valid())
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return FALSE;
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return $this->ext;
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}
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public function scaleImage($max) {
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if(!$this->is_valid())
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return FALSE;
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/**
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* If it is not animated, there will be only one iteration here,
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* so don't bother checking
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*/
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// Don't forget to go back to the first frame for any further operation
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$this->image->setFirstIterator();
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do {
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$this->image->resizeImage($max, $max, imagick::FILTER_LANCZOS, 1, true);
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} while ($this->image->nextImage());
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}
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public function rotate($degrees) {
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if(!$this->is_valid())
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return FALSE;
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$this->image->setFirstIterator();
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do {
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$this->image->rotateImage(new ImagickPixel(), $degrees);
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} while ($this->image->nextImage());
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}
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public function flip($horiz = true, $vert = false) {
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if(!$this->is_valid())
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return FALSE;
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$this->image->setFirstIterator();
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do {
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if($horiz) $this->image->flipImage();
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if($vert) $this->image->flopImage();
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} while ($this->image->nextImage());
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}
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public function orient($filename) {
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// based off comment on http://php.net/manual/en/function.imagerotate.php
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if(!$this->is_valid())
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return FALSE;
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if( (! function_exists('exif_read_data')) || ($this->getType() !== 'image/jpeg') )
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return;
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$exif = exif_read_data($filename);
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$ort = $exif['Orientation'];
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switch($ort)
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{
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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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$this->rotate(90);
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break;
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}
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}
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public function scaleImageUp($min) {
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if(!$this->is_valid())
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return FALSE;
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$this->scaleImage($min);
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}
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public function scaleImageSquare($dim) {
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if(!$this->is_valid())
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return FALSE;
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$this->image->setFirstIterator();
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do {
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$this->image->resizeImage($max, $max, imagick::FILTER_LANCZOS, 1, false);
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} while ($this->image->nextImage());
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}
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public function cropImage($max,$x,$y,$w,$h) {
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if(!$this->is_valid())
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return FALSE;
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$this->image->setFirstIterator();
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do {
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$this->image->cropImage($w, $h, $x, $y);
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/**
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* We need to remove the canva,
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* or the image is not resized to the crop:
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* http://php.net/manual/en/imagick.cropimage.php#97232
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*/
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$this->image->setImagePage(0, 0, 0, 0);
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} while ($this->image->nextImage());
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$this->scaleImage($max);
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}
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public function saveImage($path) {
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if(!$this->is_valid())
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return FALSE;
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$string = $this->imageString();
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file_put_contents($path, $string);
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}
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public function imageString() {
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if(!$this->is_valid())
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return FALSE;
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$quality = FALSE;
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/**
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* Hmmm,
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* we should do the conversion/compression at the initialisation i think
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* This method may be called several times,
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* and there is no need to do that more than once
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*/
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switch($this->image->getImageFormat()){
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case "PNG":
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$quality = get_config('system','png_quality');
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if((! $quality) || ($quality > 9))
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$quality = PNG_QUALITY;
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/**
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* From http://www.imagemagick.org/script/command-line-options.php#quality:
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*
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* 'For the MNG and PNG image formats, the quality value sets
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* the zlib compression level (quality / 10) and filter-type (quality % 10).
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* The default PNG "quality" is 75, which means compression level 7 with adaptive PNG filtering,
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* unless the image has a color map, in which case it means compression level 7 with no PNG filtering'
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*/
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$quality = $quality * 10;
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break;
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case "GIF":
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// We change nothing here, do we?
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break;
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default:
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// Convert to jpeg by default
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$quality = get_config('system','jpeg_quality');
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if((! $quality) || ($quality > 100))
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$quality = JPEG_QUALITY;
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$this->image->setImageFormat('jpeg');
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}
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if($quality !== FALSE) {
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// Do we need to iterate for animations?
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$this->image->setImageCompressionQuality($quality);
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$this->image->stripImage();
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}
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$string = $this->image->getImagesBlob();
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return $string;
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}
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public function store($uid, $cid, $rid, $filename, $album, $scale, $profile = 0, $allow_cid = '', $allow_gid = '', $deny_cid = '', $deny_gid = '') {
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$r = q("select `guid` from photo where `resource-id` = '%s' and `guid` != '' limit 1",
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dbesc($rid)
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);
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if(count($r))
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$guid = $r[0]['guid'];
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else
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$guid = get_guid();
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$x = q("select id from photo where `resource-id` = '%s' and uid = %d and `contact-id` = %d and `scale` = %d limit 1",
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dbesc($rid),
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intval($uid),
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intval($cid),
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intval($scale)
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);
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if(count($x)) {
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$r = q("UPDATE `photo`
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set `uid` = %d,
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`contact-id` = %d,
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`guid` = '%s',
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`resource-id` = '%s',
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`created` = '%s',
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`edited` = '%s',
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`filename` = '%s',
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`type` = '%s',
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`album` = '%s',
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`height` = %d,
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`width` = %d,
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`data` = '%s',
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`scale` = %d,
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`profile` = %d,
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`allow_cid` = '%s',
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`allow_gid` = '%s',
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`deny_cid` = '%s',
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`deny_gid` = '%s'
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where id = %d limit 1",
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intval($uid),
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intval($cid),
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dbesc($guid),
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dbesc($rid),
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dbesc(datetime_convert()),
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dbesc(datetime_convert()),
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dbesc(basename($filename)),
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dbesc($this->getType()),
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dbesc($album),
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intval($this->getHeight()),
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intval($this->getWidth()),
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dbesc($this->imageString()),
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intval($scale),
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intval($profile),
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dbesc($allow_cid),
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dbesc($allow_gid),
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dbesc($deny_cid),
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dbesc($deny_gid),
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intval($x[0]['id'])
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);
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}
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else {
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$r = q("INSERT INTO `photo`
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( `uid`, `contact-id`, `guid`, `resource-id`, `created`, `edited`, `filename`, type, `album`, `height`, `width`, `data`, `scale`, `profile`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid` )
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VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', %d, %d, '%s', '%s', '%s', '%s' )",
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intval($uid),
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intval($cid),
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dbesc($guid),
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dbesc($rid),
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dbesc(datetime_convert()),
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dbesc(datetime_convert()),
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dbesc(basename($filename)),
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dbesc($this->getType()),
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dbesc($album),
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intval($this->getHeight()),
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intval($this->getWidth()),
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dbesc($this->imageString()),
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intval($scale),
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intval($profile),
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dbesc($allow_cid),
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dbesc($allow_gid),
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dbesc($deny_cid),
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dbesc($deny_gid)
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);
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}
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return $r;
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}
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}}
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/**
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* Guess image mimetype from filename or from Content-Type header
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*
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* @arg $filename string Image filename
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* @arg $fromcurl boolean Check Content-Type header from curl request
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*/
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function guess_image_type($filename, $fromcurl=false) {
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logger('Photo: guess_image_type: '.$filename . ($fromcurl?' from curl headers':''), LOGGER_DEBUG);
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$type = null;
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if ($fromcurl) {
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$a = get_app();
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$headers=array();
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$h = explode("\n",$a->get_curl_headers());
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foreach ($h as $l) {
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list($k,$v) = array_map("trim", explode(":", trim($l), 2));
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$headers[$k] = $v;
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}
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if (array_key_exists('Content-Type', $headers))
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$type = $headers['Content-Type'];
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}
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if (is_null($type)){
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// Guessing from extension? Isn't that... dangerous?
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/*$ext = pathinfo($filename, PATHINFO_EXTENSION);
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$types = Photo::supportedTypes();
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$type = "image/jpeg";
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foreach ($types as $m=>$e){
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if ($ext==$e) $type = $m;
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}*/
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/**
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* Well, this not much better,
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* but at least it comes from the data inside the image,
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* we won't be tricked by a manipulated extension
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*/
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$image = new Imagick($filename);
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$type = 'image/'. strtolower($image->getImageFormat());
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}
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logger('Photo: guess_image_type: type='.$type, LOGGER_DEBUG);
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return $type;
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}
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function import_profile_photo($photo,$uid,$cid) {
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$a = get_app();
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$r = q("select `resource-id` from photo where `uid` = %d and `contact-id` = %d and `scale` = 4 and `album` = 'Contact Photos' limit 1",
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intval($uid),
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intval($cid)
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);
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if(count($r)) {
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$hash = $r[0]['resource-id'];
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}
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else {
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$hash = photo_new_resource();
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}
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$photo_failure = false;
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$filename = basename($photo);
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$img_str = fetch_url($photo,true);
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$img = new Photo($img_str);
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if($img->is_valid()) {
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$img->scaleImageSquare(175);
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$r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 4 );
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if($r === false)
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$photo_failure = true;
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$img->scaleImage(80);
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$r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 5 );
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if($r === false)
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$photo_failure = true;
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$img->scaleImage(48);
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$r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 6 );
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if($r === false)
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$photo_failure = true;
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$photo = $a->get_baseurl() . '/photo/' . $hash . '-4.' . $img->getExt();
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$thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.' . $img->getExt();
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$micro = $a->get_baseurl() . '/photo/' . $hash . '-6.' . $img->getExt();
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}
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else
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$photo_failure = true;
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if($photo_failure) {
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$photo = $a->get_baseurl() . '/images/person-175.jpg';
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$thumb = $a->get_baseurl() . '/images/person-80.jpg';
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$micro = $a->get_baseurl() . '/images/person-48.jpg';
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}
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return(array($photo,$thumb,$micro));
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}
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