Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
if(! class_exists("Photo")) {
class Photo {
private $image;
private $width;
private $height;
private $valid;
private $type;
private $types;
/**
* supported mimetypes and corresponding file extensions
*/
static function supportedTypes() {
$t = array();
$t['image/jpeg'] ='jpg';
if (imagetypes() & IMG_PNG) $t['image/png'] = 'png';
return $t;
}
public function __construct($data, $type="image/jpeg") {
$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)
imagedestroy($this->image);
}
public function is_valid() {
return $this->valid;
}
public function getWidth() {
return $this->width;
}
public function getHeight() {
return $this->height;
}
public function getImage() {
return $this->image;
}
public function getType() {
return $this->type;
}
public function getExt() {
return $this->types[$this->type];
}
public function scaleImage($max) {
$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) {
$this->image = imagerotate($this->image,$degrees,0);
$this->width = imagesx($this->image);
$this->height = imagesy($this->image);
}
public function flip($horiz = true, $vert = false) {
$w = imagesx($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( (! function_exists('exif_read_data')) || ($this->getType() === 'image/png') )
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) {
$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) {
$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) {
$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($path) {
switch($this->type){
case "image/png":
$quality = get_config('system','png_quality');
if((! $quality) || ($quality > 9))
$quality = PNG_QUALITY;
imagepng($this->image, $path, $quality);
break;
default:
$quality = get_config('system','jpeg_quality');
if((! $quality) || ($quality > 100))
$quality = JPEG_QUALITY;
imagejpeg($this->image,$path,$quality);
}
}
public function imageString() {
ob_start();
switch($this->type){
case "image/png":
$quality = get_config('system','png_quality');
if((! $quality) || ($quality > 9))
$quality = PNG_QUALITY;
imagepng($this->image,NULL, $quality);
break;
default:
$quality = get_config('system','jpeg_quality');
if((! $quality) || ($quality > 100))
$quality = JPEG_QUALITY;
imagejpeg($this->image,NULL,$quality);
}
$s = ob_get_contents();
ob_end_clean();
return $s;
}
public function store($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($this->type),
dbesc($album),
intval($this->height),
intval($this->width),
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($this->type),
dbesc($album),
intval($this->height),
intval($this->width),
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)){
$ext = pathinfo($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);
// 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));
}