include/Photo.php

   1 <?php
   2
   3 if(! class_exists("Photo")) {
   4 class Photo {
   5
   6         private $image;
   7         private $width;
   8         private $height;
   9         private $valid;
  10         private $type;
  11         private $types;
  12
  13         /**
  14          * supported mimetypes and corresponding file extensions
  15          */
  16         static function supportedTypes() {
  17                 $t = array();
  18                 $t['image/jpeg'] ='jpg';
  19                 if (imagetypes() & IMG_PNG) $t['image/png'] = 'png';
  20                 return $t;
  21         }
  22
  23         public function __construct($data, $type="image/jpeg") {
  24
  25                 $this->types = $this->supportedTypes();
  26                 if (!array_key_exists($type,$this->types)){
  27                         $type='image/jpeg';
  28                 }
  29                 $this->valid = false;
  30                 $this->type = $type;
  31                 $this->image = @imagecreatefromstring($data);
  32                 if($this->image !== FALSE) {
  33                         $this->width  = imagesx($this->image);
  34                         $this->height = imagesy($this->image);
  35                         $this->valid  = true;
  36                         imagealphablending($this->image, false);
  37                         imagesavealpha($this->image, true);
  38                 }
  39         }
  40
  41         public function __destruct() {
  42                 if($this->image)
  43                         imagedestroy($this->image);
  44         }
  45
  46         public function is_valid() {
  47                 return $this->valid;
  48         }
  49
  50         public function getWidth() {
  51                 return $this->width;
  52         }
  53
  54         public function getHeight() {
  55                 return $this->height;
  56         }
  57
  58         public function getImage() {
  59                 return $this->image;
  60         }
  61
  62         public function getType() {
  63                 return $this->type;
  64         }
  65         public function getExt() {
  66                 return $this->types[$this->type];
  67         }
  68
  69         public function scaleImage($max) {
  70
  71                 $width = $this->width;
  72                 $height = $this->height;
  73
  74                 $dest_width = $dest_height = 0;
  75
  76                 if((! $width)|| (! $height))
  77                         return FALSE;
  78
  79                 if($width > $max && $height > $max) {
  80                         if($width > $height) {
  81                                 $dest_width = $max;
  82                                 $dest_height = intval(( $height * $max ) / $width);
  83                         }
  84                         else {
  85                                 $dest_width = intval(( $width * $max ) / $height);
  86                                 $dest_height = $max;
  87                         }
  88                 }
  89                 else {
  90                         if( $width > $max ) {
  91                                 $dest_width = $max;
  92                                 $dest_height = intval(( $height * $max ) / $width);
  93                         }
  94                         else {
  95                                 if( $height > $max ) {
  96                                         $dest_width = intval(( $width * $max ) / $height);
  97                                         $dest_height = $max;
  98                                 }
  99                                 else {
 100                                         $dest_width = $width;
 101                                         $dest_height = $height;
 102                                 }
 103                         }
 104                 }
 105
 106
 107                 $dest = imagecreatetruecolor( $dest_width, $dest_height );
 108                 imagealphablending($dest, false);
 109                 imagesavealpha($dest, true);
 110                 if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 111                 imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
 112                 if($this->image)
 113                         imagedestroy($this->image);
 114                 $this->image = $dest;
 115                 $this->width  = imagesx($this->image);
 116                 $this->height = imagesy($this->image);
 117
 118         }
 119
 120         public function rotate($degrees) {
 121                 $this->image  = imagerotate($this->image,$degrees,0);
 122                 $this->width  = imagesx($this->image);
 123                 $this->height = imagesy($this->image);
 124         }
 125
 126
 127
 128         public function scaleImageUp($min) {
 129
 130                 $width = $this->width;
 131                 $height = $this->height;
 132
 133                 $dest_width = $dest_height = 0;
 134
 135                 if((! $width)|| (! $height))
 136                         return FALSE;
 137
 138                 if($width < $min && $height < $min) {
 139                         if($width > $height) {
 140                                 $dest_width = $min;
 141                                 $dest_height = intval(( $height * $min ) / $width);
 142                         }
 143                         else {
 144                                 $dest_width = intval(( $width * $min ) / $height);
 145                                 $dest_height = $min;
 146                         }
 147                 }
 148                 else {
 149                         if( $width < $min ) {
 150                                 $dest_width = $min;
 151                                 $dest_height = intval(( $height * $min ) / $width);
 152                         }
 153                         else {
 154                                 if( $height < $min ) {
 155                                         $dest_width = intval(( $width * $min ) / $height);
 156                                         $dest_height = $min;
 157                                 }
 158                                 else {
 159                                         $dest_width = $width;
 160                                         $dest_height = $height;
 161                                 }
 162                         }
 163                 }
 164
 165
 166                 $dest = imagecreatetruecolor( $dest_width, $dest_height );
 167                 imagealphablending($dest, false);
 168                 imagesavealpha($dest, true);
 169                 if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 170                 imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
 171                 if($this->image)
 172                         imagedestroy($this->image);
 173                 $this->image = $dest;
 174                 $this->width  = imagesx($this->image);
 175                 $this->height = imagesy($this->image);
 176
 177         }
 178
 179
 180
 181         public function scaleImageSquare($dim) {
 182
 183                 $dest = imagecreatetruecolor( $dim, $dim );
 184                 imagealphablending($dest, false);
 185                 imagesavealpha($dest, true);
 186                 if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 187                 imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dim, $dim, $this->width, $this->height);
 188                 if($this->image)
 189                         imagedestroy($this->image);
 190                 $this->image = $dest;
 191                 $this->width  = imagesx($this->image);
 192                 $this->height = imagesy($this->image);
 193         }
 194
 195
 196         public function cropImage($max,$x,$y,$w,$h) {
 197                 $dest = imagecreatetruecolor( $max, $max );
 198                 imagealphablending($dest, false);
 199                 imagesavealpha($dest, true);
 200                 if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 201                 imagecopyresampled($dest, $this->image, 0, 0, $x, $y, $max, $max, $w, $h);
 202                 if($this->image)
 203                         imagedestroy($this->image);
 204                 $this->image = $dest;
 205                 $this->width  = imagesx($this->image);
 206                 $this->height = imagesy($this->image);
 207         }
 208
 209         public function saveImage($path) {
 210                 switch($this->type){
 211                         case "image/png":
 212                                 $quality = get_config('system','png_quality');
 213                                 if((! $quality) || ($quality > 9))
 214                                         $quality = PNG_QUALITY;
 215                                 imagepng($this->image, $path, $quality);
 216                                 break;
 217                         default:
 218                                 $quality = get_config('system','jpeg_quality');
 219                                 if((! $quality) || ($quality > 100))
 220                                         $quality = JPEG_QUALITY;
 221                                 imagejpeg($this->image,$path,$quality);
 222                 }
 223
 224         }
 225
 226         public function imageString() {
 227                 ob_start();
 228                 switch($this->type){
 229                         case "image/png":
 230                                 $quality = get_config('system','png_quality');
 231                                 if((! $quality) || ($quality > 9))
 232                                         $quality = PNG_QUALITY;
 233                                 imagepng($this->image,NULL, $quality);
 234                                 break;
 235                         default:
 236                                 $quality = get_config('system','jpeg_quality');
 237                                 if((! $quality) || ($quality > 100))
 238                                         $quality = JPEG_QUALITY;
 239
 240                                 imagejpeg($this->image,NULL,$quality);
 241                 }
 242                 $s = ob_get_contents();
 243                 ob_end_clean();
 244                 return $s;
 245         }
 246
 247
 248
 249         public function store($uid, $cid, $rid, $filename, $album, $scale, $profile = 0, $allow_cid = '', $allow_gid = '', $deny_cid = '', $deny_gid = '') {
 250
 251                 $r = q("select `guid` from photo where `resource-id` = '%s' and `guid` != '' limit 1",
 252                         dbesc($rid)
 253                 );
 254                 if(count($r))
 255                         $guid = $r[0]['guid'];
 256                 else
 257                         $guid = get_guid();
 258
 259                 $r = q("INSERT INTO `photo`
 260                         ( `uid`, `contact-id`, `guid`, `resource-id`, `created`, `edited`, `filename`, type, `album`, `height`, `width`, `data`, `scale`, `profile`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid` )
 261                         VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', %d, %d, '%s', '%s', '%s', '%s' )",
 262                         intval($uid),
 263                         intval($cid),
 264                         dbesc($guid),
 265                         dbesc($rid),
 266                         dbesc(datetime_convert()),
 267                         dbesc(datetime_convert()),
 268                         dbesc(basename($filename)),
 269                         dbesc($this->type),
 270                         dbesc($album),
 271                         intval($this->height),
 272                         intval($this->width),
 273                         dbesc($this->imageString()),
 274                         intval($scale),
 275                         intval($profile),
 276                         dbesc($allow_cid),
 277                         dbesc($allow_gid),
 278                         dbesc($deny_cid),
 279                         dbesc($deny_gid)
 280                 );
 281                 return $r;
 282         }
 283
 284
 285
 286
 287
 288 }}
 289
 290
 291 /**
 292  * Guess image mimetype from filename or from Content-Type header
 293  *
 294  * @arg $filename string Image filename
 295  * @arg $fromcurl boolean Check Content-Type header from curl request
 296  */
 297 function guess_image_type($filename, $fromcurl=false) {
 298     logger('Photo: guess_image_type: '.$filename . ($fromcurl?' from curl headers':''), LOGGER_DEBUG);
 299         $type = null;
 300         if ($fromcurl) {
 301                 $a = get_app();
 302                 $headers=array();
 303                 $h = explode("\n",$a->get_curl_headers());
 304                 foreach ($h as $l) {
 305                         list($k,$v) = array_map("trim", explode(":", trim($l), 2));
 306                         $headers[$k] = $v;
 307                 }
 308                 if (array_key_exists('Content-Type', $headers))
 309                         $type = $headers['Content-Type'];
 310         }
 311         if (is_null($type)){
 312                 $ext = pathinfo($filename, PATHINFO_EXTENSION);
 313                 $types = Photo::supportedTypes();
 314                 $type = "image/jpeg";
 315                 foreach ($types as $m=>$e){
 316                         if ($ext==$e) $type = $m;
 317                 }
 318
 319         }
 320     logger('Photo: guess_image_type: type='.$type, LOGGER_DEBUG);
 321         return $type;
 322
 323 }
 324
 325 function import_profile_photo($photo,$uid,$cid) {
 326
 327         $a = get_app();
 328
 329         $photo_failure = false;
 330
 331         $filename = basename($photo);
 332         $img_str = fetch_url($photo,true);
 333
 334         // guess mimetype from headers or filename
 335         $type = guess_image_type($photo,true);
 336
 337
 338         $img = new Photo($img_str, $type);
 339         if($img->is_valid()) {
 340
 341                 $img->scaleImageSquare(175);
 342
 343                 $hash = photo_new_resource();
 344
 345                 $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 4 );
 346
 347                 if($r === false)
 348                         $photo_failure = true;
 349
 350                 $img->scaleImage(80);
 351
 352                 $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 5 );
 353
 354                 if($r === false)
 355                         $photo_failure = true;
 356
 357                 $img->scaleImage(48);
 358
 359                 $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 6 );
 360
 361                 if($r === false)
 362                         $photo_failure = true;
 363
 364
 365
 366                 $photo = $a->get_baseurl() . '/photo/' . $hash . '-4.' . $img->getExt();
 367                 $thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.' . $img->getExt();
 368                 $micro = $a->get_baseurl() . '/photo/' . $hash . '-6.' . $img->getExt();
 369         }
 370         else
 371                 $photo_failure = true;
 372
 373         if($photo_failure) {
 374                 $photo = $a->get_baseurl() . '/images/person-175.jpg';
 375                 $thumb = $a->get_baseurl() . '/images/person-80.jpg';
 376                 $micro = $a->get_baseurl() . '/images/person-48.jpg';
 377         }
 378
 379         return(array($photo,$thumb,$micro));
 380
 381 }