include/Photo.php

   1 <?php
   2
   3 if(! class_exists("Photo")) {
   4 class Photo {
   5
   6     private $image;
   7
   8     /**
   9      * Put back gd stuff, not everybody have Imagick
  10      */
  11     private $imagick;
  12     private $width;
  13     private $height;
  14     private $valid;
  15     private $type;
  16     private $types;
  17
  18     /**
  19      * supported mimetypes and corresponding file extensions
  20      */
  21     static function supportedTypes() {
  22         if(class_exists('Imagick')) {
  23             /**
  24              * Imagick::queryFormats won't help us a lot there...
  25              * At least, not yet, other parts of friendica uses this array
  26              */
  27             $t = array(
  28                 'image/jpeg' => 'jpg',
  29                 'image/png' => 'png',
  30                 'image/gif' => 'gif'
  31             );
  32         } else {
  33             $t = array();
  34             $t['image/jpeg'] ='jpg';
  35             if (imagetypes() & IMG_PNG) $t['image/png'] = 'png';
  36         }
  37
  38         return $t;
  39     }
  40
  41     public function __construct($data, $type=null) {
  42         $this->imagick = class_exists('Imagick');
  43         $this->types = $this->supportedTypes();
  44         if (!array_key_exists($type,$this->types)){
  45             $type='image/jpeg';
  46         }
  47         $this->type = $type;
  48
  49         if($this->is_imagick() && $this->load_data($data)) {
  50                         return true;
  51                 } else {
  52                         // Failed to load with Imagick, fallback
  53                         $this->imagick = false;
  54                 }
  55                 return $this->load_data($data);
  56     }
  57
  58     public function __destruct() {
  59         if($this->image) {
  60             if($this->is_imagick()) {
  61                 $this->image->clear();
  62                 $this->image->destroy();
  63                 return;
  64             }
  65             imagedestroy($this->image);
  66         }
  67     }
  68
  69     public function is_imagick() {
  70         return $this->imagick;
  71     }
  72
  73     /**
  74      * Maps Mime types to Imagick formats
  75      */
  76     public function get_FormatsMap() {
  77         $m = array(
  78             'image/jpeg' => 'JPG',
  79             'image/png' => 'PNG',
  80             'image/gif' => 'GIF'
  81         );
  82         return $m;
  83     }
  84
  85     private function load_data($data) {
  86                 if($this->is_imagick()) {
  87                         $this->image = new Imagick();
  88             try {
  89                                 $this->image->readImageBlob($data);
  90                         }
  91                         catch (Exception $e) {
  92                                 // Imagick couldn't use the data
  93                                 return false;
  94                         }
  95
  96             /**
  97              * Setup the image to the format it will be saved to
  98              */
  99             $map = $this->get_FormatsMap();
 100             $format = $map[$type];
 101             $this->image->setFormat($format);
 102
 103             // Always coalesce, if it is not a multi-frame image it won't hurt anyway
 104             $this->image = $this->image->coalesceImages();
 105
 106             /**
 107              * setup the compression here, so we'll do it only once
 108              */
 109             switch($this->getType()){
 110                 case "image/png":
 111                     $quality = get_config('system','png_quality');
 112                     if((! $quality) || ($quality > 9))
 113                         $quality = PNG_QUALITY;
 114                     /**
 115                      * From http://www.imagemagick.org/script/command-line-options.php#quality:
 116                      *
 117                      * 'For the MNG and PNG image formats, the quality value sets
 118                      * the zlib compression level (quality / 10) and filter-type (quality % 10).
 119                      * The default PNG "quality" is 75, which means compression level 7 with adaptive PNG filtering,
 120                      * unless the image has a color map, in which case it means compression level 7 with no PNG filtering'
 121                      */
 122                     $quality = $quality * 10;
 123                     $this->image->setCompressionQuality($quality);
 124                     break;
 125                 case "image/jpeg":
 126                     $quality = get_config('system','jpeg_quality');
 127                     if((! $quality) || ($quality > 100))
 128                         $quality = JPEG_QUALITY;
 129                     $this->image->setCompressionQuality($quality);
 130             }
 131
 132                         // The 'width' and 'height' properties are only used by non-Imagick routines.
 133                         $this->width  = $this->image->getImageWidth();
 134                         $this->height = $this->image->getImageHeight();
 135                         $this->valid  = true;
 136
 137                         return true;
 138                 }
 139
 140                 $this->valid = false;
 141                 $this->image = @imagecreatefromstring($data);
 142                 if($this->image !== FALSE) {
 143                         $this->width  = imagesx($this->image);
 144                         $this->height = imagesy($this->image);
 145                         $this->valid  = true;
 146                         imagealphablending($this->image, false);
 147                         imagesavealpha($this->image, true);
 148
 149                         return true;
 150                 }
 151
 152                 return false;
 153         }
 154
 155     public function is_valid() {
 156         if($this->is_imagick())
 157             return ($this->image !== FALSE);
 158         return $this->valid;
 159     }
 160
 161     public function getWidth() {
 162         if(!$this->is_valid())
 163             return FALSE;
 164
 165         if($this->is_imagick())
 166             return $this->image->getImageWidth();
 167         return $this->width;
 168     }
 169
 170     public function getHeight() {
 171         if(!$this->is_valid())
 172             return FALSE;
 173
 174         if($this->is_imagick())
 175             return $this->image->getImageHeight();
 176         return $this->height;
 177     }
 178
 179     public function getImage() {
 180         if(!$this->is_valid())
 181             return FALSE;
 182
 183         if($this->is_imagick()) {
 184             /* Clean it */
 185             $this->image = $this->image->deconstructImages();
 186             return $this->image;
 187         }
 188         return $this->image;
 189     }
 190
 191     public function getType() {
 192         if(!$this->is_valid())
 193             return FALSE;
 194
 195         return $this->type;
 196     }
 197
 198     public function getExt() {
 199         if(!$this->is_valid())
 200             return FALSE;
 201
 202         return $this->types[$this->getType()];
 203     }
 204
 205     public function scaleImage($max) {
 206         if(!$this->is_valid())
 207             return FALSE;
 208
 209         $width = $this->getWidth();
 210         $height = $this->getHeight();
 211
 212         $dest_width = $dest_height = 0;
 213
 214         if((! $width)|| (! $height))
 215             return FALSE;
 216
 217         if($width > $max && $height > $max) {
 218
 219                         // very tall image (greater than 16:9)
 220                         // constrain the width - let the height float.
 221
 222                         if((($height * 9) / 16) > $width) {
 223                                 $dest_width = $max;
 224                 $dest_height = intval(( $height * $max ) / $width);
 225                         }
 226
 227                         // else constrain both dimensions
 228
 229                         elseif($width > $height) {
 230                 $dest_width = $max;
 231                 $dest_height = intval(( $height * $max ) / $width);
 232             }
 233             else {
 234                 $dest_width = intval(( $width * $max ) / $height);
 235                 $dest_height = $max;
 236             }
 237         }
 238         else {
 239             if( $width > $max ) {
 240                 $dest_width = $max;
 241                 $dest_height = intval(( $height * $max ) / $width);
 242             }
 243             else {
 244                 if( $height > $max ) {
 245
 246                                         // very tall image (greater than 16:9)
 247                                         // but width is OK - don't do anything
 248
 249                                         if((($height * 9) / 16) > $width) {
 250                                                 $dest_width = $width;
 251                                 $dest_height = $height;
 252                                         }
 253                                         else {
 254                             $dest_width = intval(( $width * $max ) / $height);
 255                         $dest_height = $max;
 256                                         }
 257                 }
 258                 else {
 259                     $dest_width = $width;
 260                     $dest_height = $height;
 261                 }
 262             }
 263         }
 264
 265
 266         if($this->is_imagick()) {
 267                         /**
 268                          * If it is not animated, there will be only one iteration here,
 269                          * so don't bother checking
 270                          */
 271                         // Don't forget to go back to the first frame
 272                         $this->image->setFirstIterator();
 273                         do {
 274
 275                                 // FIXME - implement horizantal bias for scaling as in followin GD functions
 276                                 // to allow very tall images to be constrained only horizontally.
 277
 278                                 $this->image->scaleImage($dest_width, $dest_height);
 279                         } while ($this->image->nextImage());
 280
 281                         // These may not be necessary any more
 282                         $this->width  = $this->image->getImageWidth();
 283                         $this->height = $this->image->getImageHeight();
 284
 285                         return;
 286         }
 287
 288
 289         $dest = imagecreatetruecolor( $dest_width, $dest_height );
 290         imagealphablending($dest, false);
 291         imagesavealpha($dest, true);
 292         if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 293         imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
 294         if($this->image)
 295             imagedestroy($this->image);
 296         $this->image = $dest;
 297         $this->width  = imagesx($this->image);
 298         $this->height = imagesy($this->image);
 299     }
 300
 301     public function rotate($degrees) {
 302         if(!$this->is_valid())
 303             return FALSE;
 304
 305         if($this->is_imagick()) {
 306             $this->image->setFirstIterator();
 307             do {
 308                 $this->image->rotateImage(new ImagickPixel(), -$degrees); // ImageMagick rotates in the opposite direction of imagerotate()
 309             } while ($this->image->nextImage());
 310             return;
 311         }
 312
 313         $this->image  = imagerotate($this->image,$degrees,0);
 314         $this->width  = imagesx($this->image);
 315         $this->height = imagesy($this->image);
 316     }
 317
 318     public function flip($horiz = true, $vert = false) {
 319         if(!$this->is_valid())
 320             return FALSE;
 321
 322         if($this->is_imagick()) {
 323             $this->image->setFirstIterator();
 324             do {
 325                 if($horiz) $this->image->flipImage();
 326                 if($vert) $this->image->flopImage();
 327             } while ($this->image->nextImage());
 328             return;
 329         }
 330
 331         $w = imagesx($this->image);
 332         $h = imagesy($this->image);
 333         $flipped = imagecreate($w, $h);
 334         if($horiz) {
 335             for ($x = 0; $x < $w; $x++) {
 336                 imagecopy($flipped, $this->image, $x, 0, $w - $x - 1, 0, 1, $h);
 337             }
 338         }
 339         if($vert) {
 340             for ($y = 0; $y < $h; $y++) {
 341                 imagecopy($flipped, $this->image, 0, $y, 0, $h - $y - 1, $w, 1);
 342             }
 343         }
 344         $this->image = $flipped;
 345     }
 346
 347     public function orient($filename) {
 348         if ($this->is_imagick()) {
 349                 // based off comment on http://php.net/manual/en/imagick.getimageorientation.php
 350                 $orientation = $this->image->getImageOrientation();
 351                 switch ($orientation) {
 352                 case imagick::ORIENTATION_BOTTOMRIGHT:
 353                     $this->image->rotateimage("#000", 180);
 354                     break;
 355                 case imagick::ORIENTATION_RIGHTTOP:
 356                     $this->image->rotateimage("#000", 90);
 357                     break;
 358                 case imagick::ORIENTATION_LEFTBOTTOM:
 359                     $this->image->rotateimage("#000", -90);
 360                     break;
 361                 }
 362
 363                 $this->image->setImageOrientation(imagick::ORIENTATION_TOPLEFT);
 364                 return TRUE;
 365         }
 366         // based off comment on http://php.net/manual/en/function.imagerotate.php
 367
 368         if(!$this->is_valid())
 369                 return FALSE;
 370
 371         if( (! function_exists('exif_read_data')) || ($this->getType() !== 'image/jpeg') )
 372                 return;
 373
 374         $exif = @exif_read_data($filename,null,true);
 375         if(! $exif)
 376                 return;
 377
 378         $ort = $exif['IFD0']['Orientation'];
 379
 380         switch($ort)
 381         {
 382             case 1: // nothing
 383                 break;
 384
 385             case 2: // horizontal flip
 386                 $this->flip();
 387                 break;
 388
 389             case 3: // 180 rotate left
 390                 $this->rotate(180);
 391                 break;
 392
 393             case 4: // vertical flip
 394                 $this->flip(false, true);
 395                 break;
 396
 397             case 5: // vertical flip + 90 rotate right
 398                 $this->flip(false, true);
 399                 $this->rotate(-90);
 400                 break;
 401
 402             case 6: // 90 rotate right
 403                 $this->rotate(-90);
 404                 break;
 405
 406             case 7: // horizontal flip + 90 rotate right
 407                 $this->flip();
 408                 $this->rotate(-90);
 409                 break;
 410
 411             case 8:    // 90 rotate left
 412                 $this->rotate(90);
 413                 break;
 414         }
 415
 416         //      logger('exif: ' . print_r($exif,true));
 417         return $exif;
 418
 419     }
 420
 421
 422
 423     public function scaleImageUp($min) {
 424         if(!$this->is_valid())
 425             return FALSE;
 426
 427
 428         $width = $this->getWidth();
 429         $height = $this->getHeight();
 430
 431         $dest_width = $dest_height = 0;
 432
 433         if((! $width)|| (! $height))
 434             return FALSE;
 435
 436         if($width < $min && $height < $min) {
 437             if($width > $height) {
 438                 $dest_width = $min;
 439                 $dest_height = intval(( $height * $min ) / $width);
 440             }
 441             else {
 442                 $dest_width = intval(( $width * $min ) / $height);
 443                 $dest_height = $min;
 444             }
 445         }
 446         else {
 447             if( $width < $min ) {
 448                 $dest_width = $min;
 449                 $dest_height = intval(( $height * $min ) / $width);
 450             }
 451             else {
 452                 if( $height < $min ) {
 453                     $dest_width = intval(( $width * $min ) / $height);
 454                     $dest_height = $min;
 455                 }
 456                 else {
 457                     $dest_width = $width;
 458                     $dest_height = $height;
 459                 }
 460             }
 461         }
 462
 463         if($this->is_imagick())
 464             return $this->scaleImage($dest_width,$dest_height);
 465
 466         $dest = imagecreatetruecolor( $dest_width, $dest_height );
 467         imagealphablending($dest, false);
 468         imagesavealpha($dest, true);
 469         if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 470         imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
 471         if($this->image)
 472             imagedestroy($this->image);
 473         $this->image = $dest;
 474         $this->width  = imagesx($this->image);
 475         $this->height = imagesy($this->image);
 476     }
 477
 478
 479
 480     public function scaleImageSquare($dim) {
 481         if(!$this->is_valid())
 482             return FALSE;
 483
 484         if($this->is_imagick()) {
 485             $this->image->setFirstIterator();
 486             do {
 487                 $this->image->scaleImage($dim, $dim);
 488             } while ($this->image->nextImage());
 489             return;
 490         }
 491
 492         $dest = imagecreatetruecolor( $dim, $dim );
 493         imagealphablending($dest, false);
 494         imagesavealpha($dest, true);
 495         if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 496         imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dim, $dim, $this->width, $this->height);
 497         if($this->image)
 498             imagedestroy($this->image);
 499         $this->image = $dest;
 500         $this->width  = imagesx($this->image);
 501         $this->height = imagesy($this->image);
 502     }
 503
 504
 505     public function cropImage($max,$x,$y,$w,$h) {
 506         if(!$this->is_valid())
 507             return FALSE;
 508
 509                 if($this->is_imagick()) {
 510                         $this->image->setFirstIterator();
 511                         do {
 512                                 $this->image->cropImage($w, $h, $x, $y);
 513                                 /**
 514                                  * We need to remove the canva,
 515                                  * or the image is not resized to the crop:
 516                                  * http://php.net/manual/en/imagick.cropimage.php#97232
 517                                  */
 518                                 $this->image->setImagePage(0, 0, 0, 0);
 519                         } while ($this->image->nextImage());
 520                         return $this->scaleImage($max);
 521                 }
 522
 523         $dest = imagecreatetruecolor( $max, $max );
 524         imagealphablending($dest, false);
 525         imagesavealpha($dest, true);
 526         if ($this->type=='image/png') imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 527         imagecopyresampled($dest, $this->image, 0, 0, $x, $y, $max, $max, $w, $h);
 528         if($this->image)
 529             imagedestroy($this->image);
 530         $this->image = $dest;
 531         $this->width  = imagesx($this->image);
 532         $this->height = imagesy($this->image);
 533     }
 534
 535     public function saveImage($path) {
 536         if(!$this->is_valid())
 537             return FALSE;
 538
 539         $string = $this->imageString();
 540
 541         $a = get_app();
 542
 543         $stamp1 = microtime(true);
 544         file_put_contents($path, $string);
 545         $a->save_timestamp($stamp1, "file");
 546     }
 547
 548     public function imageString() {
 549         if(!$this->is_valid())
 550             return FALSE;
 551
 552         if($this->is_imagick()) {
 553             /* Clean it */
 554             $this->image = $this->image->deconstructImages();
 555             $string = $this->image->getImagesBlob();
 556             return $string;
 557         }
 558
 559         $quality = FALSE;
 560
 561         ob_start();
 562
 563         // Enable interlacing
 564         imageinterlace($this->image, true);
 565
 566         switch($this->getType()){
 567             case "image/png":
 568                 $quality = get_config('system','png_quality');
 569                 if((! $quality) || ($quality > 9))
 570                     $quality = PNG_QUALITY;
 571                 imagepng($this->image,NULL, $quality);
 572                 break;
 573             case "image/jpeg":
 574                 $quality = get_config('system','jpeg_quality');
 575                 if((! $quality) || ($quality > 100))
 576                     $quality = JPEG_QUALITY;
 577                 imagejpeg($this->image,NULL,$quality);
 578         }
 579         $string = ob_get_contents();
 580         ob_end_clean();
 581
 582         return $string;
 583     }
 584
 585
 586
 587     public function store($uid, $cid, $rid, $filename, $album, $scale, $profile = 0, $allow_cid = '', $allow_gid = '', $deny_cid = '', $deny_gid = '') {
 588
 589         $r = q("select `guid` from photo where `resource-id` = '%s' and `guid` != '' limit 1",
 590             dbesc($rid)
 591         );
 592         if(count($r))
 593             $guid = $r[0]['guid'];
 594         else
 595             $guid = get_guid();
 596
 597         $x = q("select id from photo where `resource-id` = '%s' and uid = %d and `contact-id` = %d and `scale` = %d limit 1",
 598                 dbesc($rid),
 599                 intval($uid),
 600                 intval($cid),
 601                 intval($scale)
 602         );
 603         if(count($x)) {
 604             $r = q("UPDATE `photo`
 605                 set `uid` = %d,
 606                 `contact-id` = %d,
 607                 `guid` = '%s',
 608                 `resource-id` = '%s',
 609                 `created` = '%s',
 610                 `edited` = '%s',
 611                 `filename` = '%s',
 612                 `type` = '%s',
 613                 `album` = '%s',
 614                 `height` = %d,
 615                 `width` = %d,
 616                                 `datasize` = %d,
 617                 `data` = '%s',
 618                 `scale` = %d,
 619                 `profile` = %d,
 620                 `allow_cid` = '%s',
 621                 `allow_gid` = '%s',
 622                 `deny_cid` = '%s',
 623                 `deny_gid` = '%s'
 624                 where id = %d",
 625
 626                 intval($uid),
 627                 intval($cid),
 628                 dbesc($guid),
 629                 dbesc($rid),
 630                 dbesc(datetime_convert()),
 631                 dbesc(datetime_convert()),
 632                 dbesc(basename($filename)),
 633                 dbesc($this->getType()),
 634                 dbesc($album),
 635                 intval($this->getHeight()),
 636                 intval($this->getWidth()),
 637                                 dbesc(strlen($this->imageString())),
 638                 dbesc($this->imageString()),
 639                 intval($scale),
 640                 intval($profile),
 641                 dbesc($allow_cid),
 642                 dbesc($allow_gid),
 643                 dbesc($deny_cid),
 644                 dbesc($deny_gid),
 645                 intval($x[0]['id'])
 646             );
 647         }
 648         else {
 649             $r = q("INSERT INTO `photo`
 650                 ( `uid`, `contact-id`, `guid`, `resource-id`, `created`, `edited`, `filename`, type, `album`, `height`, `width`, `datasize`, `data`, `scale`, `profile`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid` )
 651                 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, '%s', %d, %d, '%s', '%s', '%s', '%s' )",
 652                 intval($uid),
 653                 intval($cid),
 654                 dbesc($guid),
 655                 dbesc($rid),
 656                 dbesc(datetime_convert()),
 657                 dbesc(datetime_convert()),
 658                 dbesc(basename($filename)),
 659                 dbesc($this->getType()),
 660                 dbesc($album),
 661                 intval($this->getHeight()),
 662                 intval($this->getWidth()),
 663                                 dbesc(strlen($this->imageString())),
 664                 dbesc($this->imageString()),
 665                 intval($scale),
 666                 intval($profile),
 667                 dbesc($allow_cid),
 668                 dbesc($allow_gid),
 669                 dbesc($deny_cid),
 670                 dbesc($deny_gid)
 671             );
 672         }
 673         return $r;
 674     }
 675 }}
 676
 677
 678 /**
 679  * Guess image mimetype from filename or from Content-Type header
 680  *
 681  * @arg $filename string Image filename
 682  * @arg $fromcurl boolean Check Content-Type header from curl request
 683  */
 684 function guess_image_type($filename, $fromcurl=false) {
 685     logger('Photo: guess_image_type: '.$filename . ($fromcurl?' from curl headers':''), LOGGER_DEBUG);
 686     $type = null;
 687     if ($fromcurl) {
 688         $a = get_app();
 689         $headers=array();
 690         $h = explode("\n",$a->get_curl_headers());
 691         foreach ($h as $l) {
 692             list($k,$v) = array_map("trim", explode(":", trim($l), 2));
 693             $headers[$k] = $v;
 694         }
 695         if (array_key_exists('Content-Type', $headers))
 696             $type = $headers['Content-Type'];
 697     }
 698     if (is_null($type)){
 699         // Guessing from extension? Isn't that... dangerous?
 700         if(class_exists('Imagick') && file_exists($filename) && is_readable($filename)) {
 701             /**
 702              * Well, this not much better,
 703              * but at least it comes from the data inside the image,
 704              * we won't be tricked by a manipulated extension
 705              */
 706             $image = new Imagick($filename);
 707             $type = $image->getImageMimeType();
 708             $image->setInterlaceScheme(Imagick::INTERLACE_PLANE);
 709         } else {
 710             $ext = pathinfo($filename, PATHINFO_EXTENSION);
 711             $types = Photo::supportedTypes();
 712             $type = "image/jpeg";
 713             foreach ($types as $m=>$e){
 714                 if ($ext==$e) $type = $m;
 715             }
 716         }
 717     }
 718     logger('Photo: guess_image_type: type='.$type, LOGGER_DEBUG);
 719     return $type;
 720
 721 }
 722
 723 function update_contact_avatar($avatar,$uid,$cid) {
 724
 725         $r = q("SELECT `avatar`, `photo`, `thumb`, `micro` FROM `contact` WHERE `id` = %d LIMIT 1", intval($cid));
 726         if (!$r)
 727                 return false;
 728         else
 729                 $data = array($r[0]["photo"], $r[0]["thumb"], $r[0]["micro"]);
 730
 731         if ($r[0]["avatar"] != $avatar) {
 732                 $photos = import_profile_photo($avatar,$uid,$cid, true);
 733
 734                 if ($photos) {
 735                         q("UPDATE `contact` SET `avatar` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s', `avatar-date` = '%s' WHERE `id` = %d",
 736                                 dbesc($avatar), dbesc($photos[0]), dbesc($photos[1]), dbesc($photos[2]),
 737                                 dbesc(datetime_convert()), intval($cid));
 738                         return $photos;
 739                 }
 740         }
 741
 742         return $data;
 743 }
 744
 745 function import_profile_photo($photo,$uid,$cid, $quit_on_error = false) {
 746
 747         $a = get_app();
 748
 749         $r = q("select `resource-id` from photo where `uid` = %d and `contact-id` = %d and `scale` = 4 and `album` = 'Contact Photos' limit 1",
 750                 intval($uid),
 751                 intval($cid)
 752         );
 753         if(count($r) && strlen($r[0]['resource-id'])) {
 754                 $hash = $r[0]['resource-id'];
 755         } else {
 756                 $hash = photo_new_resource();
 757         }
 758
 759         $photo_failure = false;
 760
 761         $filename = basename($photo);
 762         $img_str = fetch_url($photo,true);
 763
 764         if ($quit_on_error AND ($img_str == ""))
 765                 return false;
 766
 767         $type = guess_image_type($photo,true);
 768         $img = new Photo($img_str, $type);
 769         if($img->is_valid()) {
 770
 771                 $img->scaleImageSquare(175);
 772
 773                 $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 4 );
 774
 775                 if($r === false)
 776                         $photo_failure = true;
 777
 778                 $img->scaleImage(80);
 779
 780                 $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 5 );
 781
 782                 if($r === false)
 783                         $photo_failure = true;
 784
 785                 $img->scaleImage(48);
 786
 787                 $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 6 );
 788
 789                 if($r === false)
 790                         $photo_failure = true;
 791
 792                 $photo = $a->get_baseurl() . '/photo/' . $hash . '-4.' . $img->getExt();
 793                 $thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.' . $img->getExt();
 794                 $micro = $a->get_baseurl() . '/photo/' . $hash . '-6.' . $img->getExt();
 795         } else
 796                 $photo_failure = true;
 797
 798         if($photo_failure AND $quit_on_error)
 799                 return false;
 800
 801         if($photo_failure) {
 802                 $photo = $a->get_baseurl() . '/images/person-175.jpg';
 803                 $thumb = $a->get_baseurl() . '/images/person-80.jpg';
 804                 $micro = $a->get_baseurl() . '/images/person-48.jpg';
 805         }
 806
 807         return(array($photo,$thumb,$micro));
 808
 809 }
 810
 811 function get_photo_info($url) {
 812         $data = array();
 813
 814         $data = Cache::get($url);
 815
 816         if (is_null($data)) {
 817                 $img_str = fetch_url($url, true, $redirects, 4);
 818
 819                 $filesize = strlen($img_str);
 820
 821                 if (function_exists("getimagesizefromstring"))
 822                         $data = getimagesizefromstring($img_str);
 823                 else {
 824                         $tempfile = tempnam(get_temppath(), "cache");
 825
 826                         $a = get_app();
 827                         $stamp1 = microtime(true);
 828                         file_put_contents($tempfile, $img_str);
 829                         $a->save_timestamp($stamp1, "file");
 830
 831                         $data = getimagesize($tempfile);
 832                         unlink($tempfile);
 833                 }
 834
 835                 if ($data)
 836                         $data["size"] = $filesize;
 837
 838                 Cache::set($url, serialize($data));
 839         } else
 840                 $data = unserialize($data);
 841
 842         return $data;
 843 }
 844
 845 function scale_image($width, $height, $max) {
 846
 847         $dest_width = $dest_height = 0;
 848
 849         if((!$width) || (!$height))
 850                 return FALSE;
 851
 852         if($width > $max && $height > $max) {
 853
 854                 // very tall image (greater than 16:9)
 855                 // constrain the width - let the height float.
 856
 857                 if((($height * 9) / 16) > $width) {
 858                         $dest_width = $max;
 859                         $dest_height = intval(( $height * $max ) / $width);
 860                 } elseif($width > $height) {
 861                         // else constrain both dimensions
 862                         $dest_width = $max;
 863                         $dest_height = intval(( $height * $max ) / $width);
 864                 }  else {
 865                         $dest_width = intval(( $width * $max ) / $height);
 866                         $dest_height = $max;
 867                 }
 868         } else {
 869                 if( $width > $max ) {
 870                         $dest_width = $max;
 871                         $dest_height = intval(( $height * $max ) / $width);
 872                 }  else {
 873                         if( $height > $max ) {
 874
 875                                 // very tall image (greater than 16:9)
 876                                 // but width is OK - don't do anything
 877
 878                                 if((($height * 9) / 16) > $width) {
 879                                         $dest_width = $width;
 880                                         $dest_height = $height;
 881                                 } else {
 882                                         $dest_width = intval(( $width * $max ) / $height);
 883                                         $dest_height = $max;
 884                                 }
 885                         } else {
 886                                 $dest_width = $width;
 887                                 $dest_height = $height;
 888                         }
 889                 }
 890         }
 891         return array("width" => $dest_width, "height" => $dest_height);
 892 }
 893
 894 function store_photo($a, $uid, $imagedata = "", $url = "") {
 895         $r = q("SELECT `user`.`nickname`, `user`.`page-flags`, `contact`.`id` FROM `user` INNER JOIN `contact` on `user`.`uid` = `contact`.`uid`
 896                 WHERE `user`.`uid` = %d AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
 897                 intval($uid));
 898
 899         if(!count($r)) {
 900                 logger("Can't detect user data for uid ".$uid, LOGGER_DEBUG);
 901                 return(array());
 902         }
 903
 904         $page_owner_nick  = $r[0]['nickname'];
 905
 906         /// @TODO
 907         /// $default_cid      = $r[0]['id'];
 908         /// $community_page   = (($r[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
 909
 910         if ((strlen($imagedata) == 0) AND ($url == "")) {
 911                 logger("No image data and no url provided", LOGGER_DEBUG);
 912                 return(array());
 913         } elseif (strlen($imagedata) == 0) {
 914                 logger("Uploading picture from ".$url, LOGGER_DEBUG);
 915
 916                 $stamp1 = microtime(true);
 917                 $imagedata = @file_get_contents($url);
 918                 $a->save_timestamp($stamp1, "file");
 919         }
 920
 921         $maximagesize = get_config('system','maximagesize');
 922
 923         if(($maximagesize) && (strlen($imagedata) > $maximagesize)) {
 924                 logger("Image exceeds size limit of ".$maximagesize, LOGGER_DEBUG);
 925                 return(array());
 926         }
 927
 928 /*
 929         $r = q("select sum(octet_length(data)) as total from photo where uid = %d and scale = 0 and album != 'Contact Photos' ",
 930                 intval($uid)
 931         );
 932
 933         $limit = service_class_fetch($uid,'photo_upload_limit');
 934
 935         if(($limit !== false) && (($r[0]['total'] + strlen($imagedata)) > $limit)) {
 936                 logger("Image exceeds personal limit of uid ".$uid, LOGGER_DEBUG);
 937                 return(array());
 938         }
 939 */
 940
 941         $tempfile = tempnam(get_temppath(), "cache");
 942
 943         $stamp1 = microtime(true);
 944         file_put_contents($tempfile, $imagedata);
 945         $a->save_timestamp($stamp1, "file");
 946
 947         $data = getimagesize($tempfile);
 948
 949         if (!isset($data["mime"])) {
 950                 unlink($tempfile);
 951                 logger("File is no picture", LOGGER_DEBUG);
 952                 return(array());
 953         }
 954
 955         $ph = new Photo($imagedata, $data["mime"]);
 956
 957         if(!$ph->is_valid()) {
 958                 unlink($tempfile);
 959                 logger("Picture is no valid picture", LOGGER_DEBUG);
 960                 return(array());
 961         }
 962
 963         $ph->orient($tempfile);
 964         unlink($tempfile);
 965
 966         $max_length = get_config('system','max_image_length');
 967         if(! $max_length)
 968                 $max_length = MAX_IMAGE_LENGTH;
 969         if($max_length > 0)
 970                 $ph->scaleImage($max_length);
 971
 972         $width = $ph->getWidth();
 973         $height = $ph->getHeight();
 974
 975         $hash = photo_new_resource();
 976
 977         $smallest = 0;
 978
 979         // Pictures are always public by now
 980         //$defperm = '<'.$default_cid.'>';
 981         $defperm = "";
 982         $visitor   = 0;
 983
 984         $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 0, 0, $defperm);
 985
 986         if(!$r) {
 987                 logger("Picture couldn't be stored", LOGGER_DEBUG);
 988                 return(array());
 989         }
 990
 991         $image = array("page" => $a->get_baseurl().'/photos/'.$page_owner_nick.'/image/'.$hash,
 992                         "full" => $a->get_baseurl()."/photo/{$hash}-0.".$ph->getExt());
 993
 994         if($width > 800 || $height > 800)
 995                 $image["large"] = $a->get_baseurl()."/photo/{$hash}-0.".$ph->getExt();
 996
 997         if($width > 640 || $height > 640) {
 998                 $ph->scaleImage(640);
 999                 $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 1, 0, $defperm);
1000                 if($r)
1001                         $image["medium"] = $a->get_baseurl()."/photo/{$hash}-1.".$ph->getExt();
1002         }
1003
1004         if($width > 320 || $height > 320) {
1005                 $ph->scaleImage(320);
1006                 $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 2, 0, $defperm);
1007                 if($r)
1008                         $image["small"] = $a->get_baseurl()."/photo/{$hash}-2.".$ph->getExt();
1009         }
1010
1011         if($width > 160 AND $height > 160) {
1012                 $x = 0;
1013                 $y = 0;
1014
1015                 $min = $ph->getWidth();
1016                 if ($min > 160)
1017                         $x = ($min - 160) / 2;
1018
1019                 if ($ph->getHeight() < $min) {
1020                         $min = $ph->getHeight();
1021                         if ($min > 160)
1022                                 $y = ($min - 160) / 2;
1023                 }
1024
1025                 $min = 160;
1026                 $ph->cropImage(160, $x, $y, $min, $min);
1027
1028                 $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 3, 0, $defperm);
1029                 if($r)
1030                         $image["thumb"] = $a->get_baseurl()."/photo/{$hash}-3.".$ph->getExt();
1031         }
1032
1033         // Set the full image as preview image. This will be overwritten, if the picture is larger than 640.
1034         $image["preview"] = $image["full"];
1035
1036         // Deactivated, since that would result in a cropped preview, if the picture wasn't larger than 320
1037         //if (isset($image["thumb"]))
1038         //      $image["preview"] = $image["thumb"];
1039
1040         // Unsure, if this should be activated or deactivated
1041         //if (isset($image["small"]))
1042         //      $image["preview"] = $image["small"];
1043
1044         if (isset($image["medium"]))
1045                 $image["preview"] = $image["medium"];
1046
1047         return($image);
1048 }
1049