friendica/include/Photo.php
Domovoy 689e3028bf Use getImageFormat to know the image format in the constructor.
Since we don't load the image with Imagick constructor, we need to use the [get|set]imageXXX methods.
We should be able to handle the image as if it was loaded from Imagick constructor, so that we don't get lost between the image and its frames.

Also added a debug log so that we get some info on unhandled mime types.
2012-07-22 15:24:41 +02:00

685 lines
21 KiB
PHP

<?php
if(! class_exists("Photo")) {
class Photo {
private $image;
private $ext;
/**
* Put back gd stuff, not everybody have Imagick
*/
private $imagick;
private $width;
private $height;
private $valid;
private $type;
private $types;
/**
* supported mimetypes and corresponding file extensions
*/
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 = array(
'image/jpeg' => 'jpg',
'image/png' => 'png',
'image/gif' => 'gif'
);
} else {
$t = array();
$t['image/jpeg'] ='jpg';
if (imagetypes() & IMG_PNG) $t['image/png'] = 'png';
}
return $t;
}
public function __construct($data, $type=null) {
$this->imagick = class_exists('Imagick');
if($this->is_imagick()) {
$this->image = new Imagick();
$this->image->readImageBlob($data);
// If it is a gif, it may be animated, get it ready for any future operations
if($this->image->getImageFormat() !== "GIF") $this->image = $this->image->coalesceImages();
$this->ext = strtolower($this->image->getImageFormat());
} else {
$this->types = $this->supportedTypes();
if (!array_key_exists($type,$this->types)){
$type='image/jpeg';
}
$this->valid = false;
$this->type = $type;
$this->image = @imagecreatefromstring($data);
if($this->image !== FALSE) {
$this->width = imagesx($this->image);
$this->height = imagesy($this->image);
$this->valid = true;
imagealphablending($this->image, false);
imagesavealpha($this->image, true);
}
}
}
public function __destruct() {
if($this->image) {
if($this->is_imagick()) {
$this->image->clear();
$this->image->destroy();
return;
}
imagedestroy($this->image);
}
}
public function is_imagick() {
return $this->imagick;
}
public function is_valid() {
if($this->is_imagick())
return ($this->image !== FALSE);
return $this->valid;
}
public function getWidth() {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick())
return $this->image->getImageWidth();
return $this->width;
}
public function getHeight() {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick())
return $this->image->getImageHeight();
return $this->height;
}
public function getImage() {
if(!$this->is_valid())
return FALSE;
/* Clean it */
if($this->is_imagick()) {
$this->image = $this->image->deconstructImages();
return $this->image;
}
return $this->image;
}
public function getType() {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick()) {
return $this->image->getImageMimeType();
}
return $this->type;
}
public function getExt() {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick())
return $this->ext;
return $this->types[$this->type];
}
public function scaleImage($max) {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick()) {
/**
* If it is not animated, there will be only one iteration here,
* so don't bother checking
*/
// Don't forget to go back to the first frame for any further operation
$this->image->setFirstIterator();
do {
$this->image->resizeImage($max, $max, imagick::FILTER_LANCZOS, 1, true);
} while ($this->image->nextImage());
return;
}
$width = $this->width;
$height = $this->height;
$dest_width = $dest_height = 0;
if((! $width)|| (! $height))
return FALSE;
if($width > $max && $height > $max) {
if($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 ) {
$dest_width = intval(( $width * $max ) / $height);
$dest_height = $max;
}
else {
$dest_width = $width;
$dest_height = $height;
}
}
}
$dest = imagecreatetruecolor( $dest_width, $dest_height );
imagealphablending($dest, false);
imagesavealpha($dest, true);
if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
if($this->image)
imagedestroy($this->image);
$this->image = $dest;
$this->width = imagesx($this->image);
$this->height = imagesy($this->image);
}
public function rotate($degrees) {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick()) {
$this->image->setFirstIterator();
do {
$this->image->rotateImage(new ImagickPixel(), $degrees);
} while ($this->image->nextImage());
return;
}
$this->image = imagerotate($this->image,$degrees,0);
$this->width = imagesx($this->image);
$this->height = imagesy($this->image);
}
public function flip($horiz = true, $vert = false) {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick()) {
$this->image->setFirstIterator();
do {
if($horiz) $this->image->flipImage();
if($vert) $this->image->flopImage();
} while ($this->image->nextImage());
return;
}
$w = imagesx($this->image);
$h = imagesy($this->image);
$flipped = imagecreate($w, $h);
if($horiz) {
for ($x = 0; $x < $w; $x++) {
imagecopy($flipped, $this->image, $x, 0, $w - $x - 1, 0, 1, $h);
}
}
if($vert) {
for ($y = 0; $y < $h; $y++) {
imagecopy($flipped, $this->image, 0, $y, 0, $h - $y - 1, $w, 1);
}
}
$this->image = $flipped;
}
public function orient($filename) {
// based off comment on http://php.net/manual/en/function.imagerotate.php
if(!$this->is_valid())
return FALSE;
if( (! function_exists('exif_read_data')) || ($this->getType() !== 'image/jpeg') )
return;
$exif = exif_read_data($filename);
$ort = $exif['Orientation'];
switch($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
$this->rotate(90);
break;
}
}
public function scaleImageUp($min) {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick())
return $this->scaleImage($min);
$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;
}
}
}
$dest = imagecreatetruecolor( $dest_width, $dest_height );
imagealphablending($dest, false);
imagesavealpha($dest, true);
if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
if($this->image)
imagedestroy($this->image);
$this->image = $dest;
$this->width = imagesx($this->image);
$this->height = imagesy($this->image);
}
public function scaleImageSquare($dim) {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick()) {
$this->image->setFirstIterator();
do {
$this->image->resizeImage($dim, $dim, imagick::FILTER_LANCZOS, 1, false);
} while ($this->image->nextImage());
return;
}
$dest = imagecreatetruecolor( $dim, $dim );
imagealphablending($dest, false);
imagesavealpha($dest, true);
if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dim, $dim, $this->width, $this->height);
if($this->image)
imagedestroy($this->image);
$this->image = $dest;
$this->width = imagesx($this->image);
$this->height = imagesy($this->image);
}
public function cropImage($max,$x,$y,$w,$h) {
if(!$this->is_valid())
return FALSE;
if($this->is_imagick()) {
$this->image->setFirstIterator();
do {
$this->image->cropImage($w, $h, $x, $y);
/**
* We need to remove the canva,
* or the image is not resized to the crop:
* http://php.net/manual/en/imagick.cropimage.php#97232
*/
$this->image->setImagePage(0, 0, 0, 0);
} while ($this->image->nextImage());
return $this->scaleImage($max);
}
$dest = imagecreatetruecolor( $max, $max );
imagealphablending($dest, false);
imagesavealpha($dest, true);
if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
imagecopyresampled($dest, $this->image, 0, 0, $x, $y, $max, $max, $w, $h);
if($this->image)
imagedestroy($this->image);
$this->image = $dest;
$this->width = imagesx($this->image);
$this->height = imagesy($this->image);
}
public function saveImage($path) {
if(!$this->is_valid())
return FALSE;
$string = $this->imageString();
file_put_contents($path, $string);
}
public function imageString() {
if(!$this->is_valid())
return FALSE;
$quality = FALSE;
/**
* Hmmm, for Imagick
* we should do the conversion/compression at the initialisation i think
* This method may be called several times,
* and there is no need to do that more than once
*/
if(!$this->is_imagick()) ob_start();
switch($this->getType()){
case "image/png":
$quality = get_config('system','png_quality');
if((! $quality) || ($quality > 9))
$quality = PNG_QUALITY;
if($this->is_imagick()) {
/**
* From http://www.imagemagick.org/script/command-line-options.php#quality:
*
* 'For the MNG and PNG image formats, the quality value sets
* the zlib compression level (quality / 10) and filter-type (quality % 10).
* The default PNG "quality" is 75, which means compression level 7 with adaptive PNG filtering,
* unless the image has a color map, in which case it means compression level 7 with no PNG filtering'
*/
$quality = $quality * 10;
} else imagepng($this->image,NULL, $quality);
break;
case "image/gif":
// We change nothing here, do we?
break;
default:
// Convert to jpeg by default
$quality = get_config('system','jpeg_quality');
if((! $quality) || ($quality > 100))
$quality = JPEG_QUALITY;
if($this->is_imagick()) {
$this->image->setImageFormat('jpeg');
logger('Photo: imageString: Unhandled mime type ('. $this->getType() .'), Imagick format is "'. $this->image->getImageFormat() .'"', LOGGER_DEBUG);
}
else imagejpeg($this->image,NULL,$quality);
}
if($this->is_imagick()) {
if($quality !== FALSE) {
// Do we need to iterate for animations?
$this->image->setImageCompressionQuality($quality);
$this->image->stripImage();
}
$string = $this->image->getImagesBlob();
} else {
$string = ob_get_contents();
ob_end_clean();
}
return $string;
}
public function store($uid, $cid, $rid, $filename, $album, $scale, $profile = 0, $allow_cid = '', $allow_gid = '', $deny_cid = '', $deny_gid = '') {
$r = q("select `guid` from photo where `resource-id` = '%s' and `guid` != '' limit 1",
dbesc($rid)
);
if(count($r))
$guid = $r[0]['guid'];
else
$guid = get_guid();
$x = q("select id from photo where `resource-id` = '%s' and uid = %d and `contact-id` = %d and `scale` = %d limit 1",
dbesc($rid),
intval($uid),
intval($cid),
intval($scale)
);
if(count($x)) {
$r = q("UPDATE `photo`
set `uid` = %d,
`contact-id` = %d,
`guid` = '%s',
`resource-id` = '%s',
`created` = '%s',
`edited` = '%s',
`filename` = '%s',
`type` = '%s',
`album` = '%s',
`height` = %d,
`width` = %d,
`data` = '%s',
`scale` = %d,
`profile` = %d,
`allow_cid` = '%s',
`allow_gid` = '%s',
`deny_cid` = '%s',
`deny_gid` = '%s'
where id = %d limit 1",
intval($uid),
intval($cid),
dbesc($guid),
dbesc($rid),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc(basename($filename)),
dbesc($this->getType()),
dbesc($album),
intval($this->getHeight()),
intval($this->getWidth()),
dbesc($this->imageString()),
intval($scale),
intval($profile),
dbesc($allow_cid),
dbesc($allow_gid),
dbesc($deny_cid),
dbesc($deny_gid),
intval($x[0]['id'])
);
}
else {
$r = q("INSERT INTO `photo`
( `uid`, `contact-id`, `guid`, `resource-id`, `created`, `edited`, `filename`, type, `album`, `height`, `width`, `data`, `scale`, `profile`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid` )
VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', %d, %d, '%s', '%s', '%s', '%s' )",
intval($uid),
intval($cid),
dbesc($guid),
dbesc($rid),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc(basename($filename)),
dbesc($this->getType()),
dbesc($album),
intval($this->getHeight()),
intval($this->getWidth()),
dbesc($this->imageString()),
intval($scale),
intval($profile),
dbesc($allow_cid),
dbesc($allow_gid),
dbesc($deny_cid),
dbesc($deny_gid)
);
}
return $r;
}
}}
/**
* Guess image mimetype from filename or from Content-Type header
*
* @arg $filename string Image filename
* @arg $fromcurl boolean Check Content-Type header from curl request
*/
function guess_image_type($filename, $fromcurl=false) {
logger('Photo: guess_image_type: '.$filename . ($fromcurl?' from curl headers':''), LOGGER_DEBUG);
$type = null;
if ($fromcurl) {
$a = get_app();
$headers=array();
$h = explode("\n",$a->get_curl_headers());
foreach ($h as $l) {
list($k,$v) = array_map("trim", explode(":", trim($l), 2));
$headers[$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($this->is_imagick()) {
/**
* 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();
} else {
$ext = pathinfo($filename, PATHINFO_EXTENSION);
$types = Photo::supportedTypes();
$type = "image/jpeg";
foreach ($types as $m=>$e){
if ($ext==$e) $type = $m;
}
}
}
logger('Photo: guess_image_type: type='.$type, LOGGER_DEBUG);
return $type;
}
function import_profile_photo($photo,$uid,$cid) {
$a = get_app();
$r = q("select `resource-id` from photo where `uid` = %d and `contact-id` = %d and `scale` = 4 and `album` = 'Contact Photos' limit 1",
intval($uid),
intval($cid)
);
if(count($r)) {
$hash = $r[0]['resource-id'];
}
else {
$hash = photo_new_resource();
}
$photo_failure = false;
$filename = basename($photo);
$img_str = fetch_url($photo,true);
if($this->is_imagick()) $type = null;
else {
// guess mimetype from headers or filename
$type = guess_image_type($photo,true);
}
$img = new Photo($img_str, $type);
if($img->is_valid()) {
$img->scaleImageSquare(175);
$r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 4 );
if($r === false)
$photo_failure = true;
$img->scaleImage(80);
$r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 5 );
if($r === false)
$photo_failure = true;
$img->scaleImage(48);
$r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 6 );
if($r === false)
$photo_failure = true;
$photo = $a->get_baseurl() . '/photo/' . $hash . '-4.' . $img->getExt();
$thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.' . $img->getExt();
$micro = $a->get_baseurl() . '/photo/' . $hash . '-6.' . $img->getExt();
}
else
$photo_failure = true;
if($photo_failure) {
$photo = $a->get_baseurl() . '/images/person-175.jpg';
$thumb = $a->get_baseurl() . '/images/person-80.jpg';
$micro = $a->get_baseurl() . '/images/person-48.jpg';
}
return(array($photo,$thumb,$micro));
}