include/Photo.php

   1 <?php
   2 /**
   3  * @file include/Photo.php
   4  * @brief This file contains the Photo class for image processing
   5  */
   6
   7 use Friendica\App;
   8 use Friendica\Core\Config;
   9 use Friendica\Core\System;
  10 use Friendica\Database\DBM;
  11
  12 require_once("include/photos.php");
  13
  14 class Photo {
  15
  16         private $image;
  17
  18         /*
  19          * Put back gd stuff, not everybody have Imagick
  20          */
  21         private $imagick;
  22         private $width;
  23         private $height;
  24         private $valid;
  25         private $type;
  26         private $types;
  27
  28         /**
  29          * @brief supported mimetypes and corresponding file extensions
  30          */
  31         public static function supportedTypes() {
  32                 if (class_exists('Imagick')) {
  33
  34                         // Imagick::queryFormats won't help us a lot there...
  35                         // At least, not yet, other parts of friendica uses this array
  36                         $t = array(
  37                                 'image/jpeg' => 'jpg',
  38                                 'image/png' => 'png',
  39                                 'image/gif' => 'gif'
  40                         );
  41                 } else {
  42                         $t = array();
  43                         $t['image/jpeg'] ='jpg';
  44                         if (imagetypes() & IMG_PNG) {
  45                                 $t['image/png'] = 'png';
  46                         }
  47                 }
  48
  49                 return $t;
  50         }
  51
  52         public function __construct($data, $type=null) {
  53                 $this->imagick = class_exists('Imagick');
  54                 $this->types = static::supportedTypes();
  55                 if (!array_key_exists($type, $this->types)){
  56                         $type='image/jpeg';
  57                 }
  58                 $this->type = $type;
  59
  60                 if ($this->is_imagick() && $this->load_data($data)) {
  61                         return true;
  62                 } else {
  63                         // Failed to load with Imagick, fallback
  64                         $this->imagick = false;
  65                 }
  66                 return $this->load_data($data);
  67         }
  68
  69         public function __destruct() {
  70                 if ($this->image) {
  71                         if ($this->is_imagick()) {
  72                                 $this->image->clear();
  73                                 $this->image->destroy();
  74                                 return;
  75                         }
  76                         if (is_resource($this->image)) {
  77                                 imagedestroy($this->image);
  78                         }
  79                 }
  80         }
  81
  82         public function is_imagick() {
  83                 return $this->imagick;
  84         }
  85
  86         /**
  87          * @brief Maps Mime types to Imagick formats
  88          * @return arr With with image formats (mime type as key)
  89          */
  90         public function get_FormatsMap() {
  91                 $m = array(
  92                         'image/jpeg' => 'JPG',
  93                         'image/png' => 'PNG',
  94                         'image/gif' => 'GIF'
  95                 );
  96                 return $m;
  97         }
  98
  99         private function load_data($data) {
 100                 if ($this->is_imagick()) {
 101                         $this->image = new Imagick();
 102                         try {
 103                                 $this->image->readImageBlob($data);
 104                         } catch (Exception $e) {
 105                                 // Imagick couldn't use the data
 106                                 return false;
 107                         }
 108
 109                         /*
 110                          * Setup the image to the format it will be saved to
 111                          */
 112                         $map = $this->get_FormatsMap();
 113                         $format = $map[$type];
 114                         $this->image->setFormat($format);
 115
 116                         // Always coalesce, if it is not a multi-frame image it won't hurt anyway
 117                         $this->image = $this->image->coalesceImages();
 118
 119                         /*
 120                          * setup the compression here, so we'll do it only once
 121                          */
 122                         switch($this->getType()){
 123                                 case "image/png":
 124                                         $quality = Config::get('system', 'png_quality');
 125                                         if ((! $quality) || ($quality > 9)) {
 126                                                 $quality = PNG_QUALITY;
 127                                         }
 128                                         /*
 129                                          * From http://www.imagemagick.org/script/command-line-options.php#quality:
 130                                          *
 131                                          * 'For the MNG and PNG image formats, the quality value sets
 132                                          * the zlib compression level (quality / 10) and filter-type (quality % 10).
 133                                          * The default PNG "quality" is 75, which means compression level 7 with adaptive PNG filtering,
 134                                          * unless the image has a color map, in which case it means compression level 7 with no PNG filtering'
 135                                          */
 136                                         $quality = $quality * 10;
 137                                         $this->image->setCompressionQuality($quality);
 138                                         break;
 139                                 case "image/jpeg":
 140                                         $quality = Config::get('system', 'jpeg_quality');
 141                                         if ((! $quality) || ($quality > 100)) {
 142                                                 $quality = JPEG_QUALITY;
 143                                         }
 144                                         $this->image->setCompressionQuality($quality);
 145                         }
 146
 147                         // The 'width' and 'height' properties are only used by non-Imagick routines.
 148                         $this->width  = $this->image->getImageWidth();
 149                         $this->height = $this->image->getImageHeight();
 150                         $this->valid  = true;
 151
 152                         return true;
 153                 }
 154
 155                 $this->valid = false;
 156                 $this->image = @imagecreatefromstring($data);
 157                 if ($this->image !== false) {
 158                         $this->width  = imagesx($this->image);
 159                         $this->height = imagesy($this->image);
 160                         $this->valid  = true;
 161                         imagealphablending($this->image, false);
 162                         imagesavealpha($this->image, true);
 163
 164                         return true;
 165                 }
 166
 167                 return false;
 168         }
 169
 170         public function is_valid() {
 171                 if ($this->is_imagick()) {
 172                         return ($this->image !== false);
 173                 }
 174                 return $this->valid;
 175         }
 176
 177         public function getWidth() {
 178                 if (!$this->is_valid()) {
 179                         return false;
 180                 }
 181
 182                 if ($this->is_imagick()) {
 183                         return $this->image->getImageWidth();
 184                 }
 185                 return $this->width;
 186         }
 187
 188         public function getHeight() {
 189                 if (!$this->is_valid()) {
 190                         return false;
 191                 }
 192
 193                 if ($this->is_imagick()) {
 194                         return $this->image->getImageHeight();
 195                 }
 196                 return $this->height;
 197         }
 198
 199         public function getImage() {
 200                 if (!$this->is_valid()) {
 201                         return false;
 202                 }
 203
 204                 if ($this->is_imagick()) {
 205                         /* Clean it */
 206                         $this->image = $this->image->deconstructImages();
 207                         return $this->image;
 208                 }
 209                 return $this->image;
 210         }
 211
 212         public function getType() {
 213                 if (!$this->is_valid()) {
 214                         return false;
 215                 }
 216
 217                 return $this->type;
 218         }
 219
 220         public function getExt() {
 221                 if (!$this->is_valid()) {
 222                         return false;
 223                 }
 224
 225                 return $this->types[$this->getType()];
 226         }
 227
 228         public function scaleImage($max) {
 229                 if (!$this->is_valid()) {
 230                         return false;
 231                 }
 232
 233                 $width = $this->getWidth();
 234                 $height = $this->getHeight();
 235
 236                 $dest_width = $dest_height = 0;
 237
 238                 if ((! $width)|| (! $height)) {
 239                         return false;
 240                 }
 241
 242                 if ($width > $max && $height > $max) {
 243
 244                         // very tall image (greater than 16:9)
 245                         // constrain the width - let the height float.
 246
 247                         if ((($height * 9) / 16) > $width) {
 248                                 $dest_width = $max;
 249                                 $dest_height = intval(($height * $max) / $width);
 250                         } elseif ($width > $height) {
 251                                 // else constrain both dimensions
 252                                 $dest_width = $max;
 253                                 $dest_height = intval(($height * $max) / $width);
 254                         } else {
 255                                 $dest_width = intval(($width * $max) / $height);
 256                                 $dest_height = $max;
 257                         }
 258                 } else {
 259                         if ($width > $max) {
 260                                 $dest_width = $max;
 261                                 $dest_height = intval(($height * $max) / $width);
 262                         } else {
 263                                 if ($height > $max) {
 264
 265                                         // very tall image (greater than 16:9)
 266                                         // but width is OK - don't do anything
 267
 268                                         if ((($height * 9) / 16) > $width) {
 269                                                 $dest_width = $width;
 270                                                 $dest_height = $height;
 271                                         } else {
 272                                                 $dest_width = intval(($width * $max) / $height);
 273                                                 $dest_height = $max;
 274                                         }
 275                                 } else {
 276                                         $dest_width = $width;
 277                                         $dest_height = $height;
 278                                 }
 279                         }
 280                 }
 281
 282
 283                 if ($this->is_imagick()) {
 284                         /*
 285                          * If it is not animated, there will be only one iteration here,
 286                          * so don't bother checking
 287                          */
 288                         // Don't forget to go back to the first frame
 289                         $this->image->setFirstIterator();
 290                         do {
 291
 292                                 // FIXME - implement horizantal bias for scaling as in followin GD functions
 293                                 // to allow very tall images to be constrained only horizontally.
 294
 295                                 $this->image->scaleImage($dest_width, $dest_height);
 296                         } while ($this->image->nextImage());
 297
 298                         // These may not be necessary any more
 299                         $this->width  = $this->image->getImageWidth();
 300                         $this->height = $this->image->getImageHeight();
 301
 302                         return;
 303                 }
 304
 305
 306                 $dest = imagecreatetruecolor($dest_width, $dest_height);
 307                 imagealphablending($dest, false);
 308                 imagesavealpha($dest, true);
 309                 if ($this->type=='image/png') {
 310                         imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 311                 }
 312                 imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
 313                 if ($this->image) {
 314                         imagedestroy($this->image);
 315                 }
 316                 $this->image = $dest;
 317                 $this->width  = imagesx($this->image);
 318                 $this->height = imagesy($this->image);
 319         }
 320
 321         public function rotate($degrees) {
 322                 if (!$this->is_valid()) {
 323                         return false;
 324                 }
 325
 326                 if ($this->is_imagick()) {
 327                         $this->image->setFirstIterator();
 328                         do {
 329                                 $this->image->rotateImage(new ImagickPixel(), -$degrees); // ImageMagick rotates in the opposite direction of imagerotate()
 330                         } while ($this->image->nextImage());
 331                         return;
 332                 }
 333
 334                 // if script dies at this point check memory_limit setting in php.ini
 335                 $this->image  = imagerotate($this->image,$degrees,0);
 336                 $this->width  = imagesx($this->image);
 337                 $this->height = imagesy($this->image);
 338         }
 339
 340         public function flip($horiz = true, $vert = false) {
 341                 if (!$this->is_valid()) {
 342                         return false;
 343                 }
 344
 345                 if ($this->is_imagick()) {
 346                         $this->image->setFirstIterator();
 347                         do {
 348                                 if ($horiz) {
 349                                         $this->image->flipImage();
 350                                 }
 351                                 if ($vert) {
 352                                         $this->image->flopImage();
 353                                 }
 354                         } while ($this->image->nextImage());
 355                         return;
 356                 }
 357
 358                 $w = imagesx($this->image);
 359                 $h = imagesy($this->image);
 360                 $flipped = imagecreate($w, $h);
 361                 if ($horiz) {
 362                         for ($x = 0; $x < $w; $x++) {
 363                                 imagecopy($flipped, $this->image, $x, 0, $w - $x - 1, 0, 1, $h);
 364                         }
 365                 }
 366                 if ($vert) {
 367                         for ($y = 0; $y < $h; $y++) {
 368                                 imagecopy($flipped, $this->image, 0, $y, 0, $h - $y - 1, $w, 1);
 369                         }
 370                 }
 371                 $this->image = $flipped;
 372         }
 373
 374         public function orient($filename) {
 375                 if ($this->is_imagick()) {
 376                         // based off comment on http://php.net/manual/en/imagick.getimageorientation.php
 377                         $orientation = $this->image->getImageOrientation();
 378                         switch ($orientation) {
 379                         case imagick::ORIENTATION_BOTTOMRIGHT:
 380                                 $this->image->rotateimage("#000", 180);
 381                                 break;
 382                         case imagick::ORIENTATION_RIGHTTOP:
 383                                 $this->image->rotateimage("#000", 90);
 384                                 break;
 385                         case imagick::ORIENTATION_LEFTBOTTOM:
 386                                 $this->image->rotateimage("#000", -90);
 387                                 break;
 388                         }
 389
 390                         $this->image->setImageOrientation(imagick::ORIENTATION_TOPLEFT);
 391                         return true;
 392                 }
 393                 // based off comment on http://php.net/manual/en/function.imagerotate.php
 394
 395                 if (!$this->is_valid()) {
 396                         return false;
 397                 }
 398
 399                 if ((!function_exists('exif_read_data')) || ($this->getType() !== 'image/jpeg')) {
 400                         return;
 401                 }
 402
 403                 $exif = @exif_read_data($filename,null,true);
 404                 if (!$exif) {
 405                         return;
 406                 }
 407
 408                 $ort = $exif['IFD0']['Orientation'];
 409
 410                 switch($ort)
 411                 {
 412                         case 1: // nothing
 413                                 break;
 414
 415                         case 2: // horizontal flip
 416                                 $this->flip();
 417                                 break;
 418
 419                         case 3: // 180 rotate left
 420                                 $this->rotate(180);
 421                                 break;
 422
 423                         case 4: // vertical flip
 424                                 $this->flip(false, true);
 425                                 break;
 426
 427                         case 5: // vertical flip + 90 rotate right
 428                                 $this->flip(false, true);
 429                                 $this->rotate(-90);
 430                                 break;
 431
 432                         case 6: // 90 rotate right
 433                                 $this->rotate(-90);
 434                                 break;
 435
 436                         case 7: // horizontal flip + 90 rotate right
 437                                 $this->flip();
 438                                 $this->rotate(-90);
 439                                 break;
 440
 441                         case 8: // 90 rotate left
 442                                 $this->rotate(90);
 443                                 break;
 444                 }
 445
 446                 //      logger('exif: ' . print_r($exif,true));
 447                 return $exif;
 448
 449         }
 450
 451
 452
 453         public function scaleImageUp($min) {
 454                 if (!$this->is_valid()) {
 455                         return false;
 456                 }
 457
 458
 459                 $width = $this->getWidth();
 460                 $height = $this->getHeight();
 461
 462                 $dest_width = $dest_height = 0;
 463
 464                 if ((!$width)|| (!$height)) {
 465                         return false;
 466                 }
 467
 468                 if ($width < $min && $height < $min) {
 469                         if ($width > $height) {
 470                                 $dest_width = $min;
 471                                 $dest_height = intval(($height * $min) / $width);
 472                         } else {
 473                                 $dest_width = intval(($width * $min) / $height);
 474                                 $dest_height = $min;
 475                         }
 476                 } else {
 477                         if ($width < $min) {
 478                                 $dest_width = $min;
 479                                 $dest_height = intval(($height * $min) / $width);
 480                         } else {
 481                                 if ($height < $min) {
 482                                         $dest_width = intval(($width * $min) / $height);
 483                                         $dest_height = $min;
 484                                 } else {
 485                                         $dest_width = $width;
 486                                         $dest_height = $height;
 487                                 }
 488                         }
 489                 }
 490
 491                 if ($this->is_imagick()) {
 492                         return $this->scaleImage($dest_width, $dest_height);
 493                 }
 494
 495                 $dest = imagecreatetruecolor($dest_width, $dest_height);
 496                 imagealphablending($dest, false);
 497                 imagesavealpha($dest, true);
 498                 if ($this->type=='image/png') {
 499                         imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 500                 }
 501                 imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height);
 502                 if ($this->image) {
 503                         imagedestroy($this->image);
 504                 }
 505                 $this->image = $dest;
 506                 $this->width  = imagesx($this->image);
 507                 $this->height = imagesy($this->image);
 508         }
 509
 510
 511
 512         public function scaleImageSquare($dim) {
 513                 if (!$this->is_valid()) {
 514                         return false;
 515                 }
 516
 517                 if ($this->is_imagick()) {
 518                         $this->image->setFirstIterator();
 519                         do {
 520                                 $this->image->scaleImage($dim, $dim);
 521                         } while ($this->image->nextImage());
 522                         return;
 523                 }
 524
 525                 $dest = imagecreatetruecolor($dim, $dim);
 526                 imagealphablending($dest, false);
 527                 imagesavealpha($dest, true);
 528                 if ($this->type=='image/png') {
 529                         imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 530                 }
 531                 imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dim, $dim, $this->width, $this->height);
 532                 if ($this->image) {
 533                         imagedestroy($this->image);
 534                 }
 535                 $this->image = $dest;
 536                 $this->width  = imagesx($this->image);
 537                 $this->height = imagesy($this->image);
 538         }
 539
 540
 541         public function cropImage($max, $x, $y, $w, $h) {
 542                 if (!$this->is_valid()) {
 543                         return false;
 544                 }
 545
 546                 if ($this->is_imagick()) {
 547                         $this->image->setFirstIterator();
 548                         do {
 549                                 $this->image->cropImage($w, $h, $x, $y);
 550                                 /*
 551                                  * We need to remove the canva,
 552                                  * or the image is not resized to the crop:
 553                                  * http://php.net/manual/en/imagick.cropimage.php#97232
 554                                  */
 555                                 $this->image->setImagePage(0, 0, 0, 0);
 556                         } while ($this->image->nextImage());
 557                         return $this->scaleImage($max);
 558                 }
 559
 560                 $dest = imagecreatetruecolor($max, $max);
 561                 imagealphablending($dest, false);
 562                 imagesavealpha($dest, true);
 563                 if ($this->type=='image/png') {
 564                         imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha
 565                 }
 566                 imagecopyresampled($dest, $this->image, 0, 0, $x, $y, $max, $max, $w, $h);
 567                 if ($this->image) {
 568                         imagedestroy($this->image);
 569                 }
 570                 $this->image = $dest;
 571                 $this->width  = imagesx($this->image);
 572                 $this->height = imagesy($this->image);
 573         }
 574
 575         public function saveImage($path) {
 576                 if (!$this->is_valid()) {
 577                         return false;
 578                 }
 579
 580                 $string = $this->imageString();
 581
 582                 $a = get_app();
 583
 584                 $stamp1 = microtime(true);
 585                 file_put_contents($path, $string);
 586                 $a->save_timestamp($stamp1, "file");
 587         }
 588
 589         public function imageString() {
 590                 if (!$this->is_valid()) {
 591                         return false;
 592                 }
 593
 594                 if ($this->is_imagick()) {
 595                         /* Clean it */
 596                         $this->image = $this->image->deconstructImages();
 597                         $string = $this->image->getImagesBlob();
 598                         return $string;
 599                 }
 600
 601                 $quality = false;
 602
 603                 ob_start();
 604
 605                 // Enable interlacing
 606                 imageinterlace($this->image, true);
 607
 608                 switch($this->getType()){
 609                         case "image/png":
 610                                 $quality = Config::get('system', 'png_quality');
 611                                 if ((!$quality) || ($quality > 9)) {
 612                                         $quality = PNG_QUALITY;
 613                                 }
 614                                 imagepng($this->image, null, $quality);
 615                                 break;
 616                         case "image/jpeg":
 617                                 $quality = Config::get('system', 'jpeg_quality');
 618                                 if ((!$quality) || ($quality > 100)) {
 619                                         $quality = JPEG_QUALITY;
 620                                 }
 621                                 imagejpeg($this->image, null, $quality);
 622                 }
 623                 $string = ob_get_contents();
 624                 ob_end_clean();
 625
 626                 return $string;
 627         }
 628
 629
 630
 631         public function store($uid, $cid, $rid, $filename, $album, $scale, $profile = 0, $allow_cid = '', $allow_gid = '', $deny_cid = '', $deny_gid = '', $desc = '') {
 632
 633                 $r = dba::select('photo', array('guid'), array("`resource-id` = ? AND `guid` != ?", $rid, ''), array('limit' => 1));
 634                 if (DBM::is_result($r)) {
 635                         $guid = $r['guid'];
 636                 } else {
 637                         $guid = get_guid();
 638                 }
 639
 640                 $x = dba::select('photo', array('id'), array('resource-id' => $rid, 'uid' => $uid, 'contact-id' => $cid, 'scale' => $scale), array('limit' => 1));
 641
 642                 $fields = array('uid' => $uid, 'contact-id' => $cid, 'guid' => $guid, 'resource-id' => $rid, 'created' => datetime_convert(), 'edited' => datetime_convert(),
 643                                 'filename' => basename($filename), 'type' => $this->getType(), 'album' => $album, 'height' => $this->getHeight(), 'width' => $this->getWidth(),
 644                                 'datasize' => strlen($this->imageString()), 'data' => $this->imageString(), 'scale' => $scale, 'profile' => $profile,
 645                                 'allow_cid' => $allow_cid, 'allow_gid' => $allow_gid, 'deny_cid' => $deny_cid, 'deny_gid' => $deny_gid, 'desc' => $desc);
 646
 647                 if (DBM::is_result($x)) {
 648                         $r = dba::update('photo', $fields, array('id' => $x['id']));
 649                 } else {
 650                         $r = dba::insert('photo', $fields);
 651                 }
 652
 653                 return $r;
 654         }
 655 }
 656
 657
 658 /**
 659  * Guess image mimetype from filename or from Content-Type header
 660  *
 661  * @arg $filename string Image filename
 662  * @arg $fromcurl boolean Check Content-Type header from curl request
 663  */
 664 function guess_image_type($filename, $fromcurl=false) {
 665         logger('Photo: guess_image_type: '.$filename . ($fromcurl?' from curl headers':''), LOGGER_DEBUG);
 666         $type = null;
 667         if ($fromcurl) {
 668                 $a = get_app();
 669                 $headers=array();
 670                 $h = explode("\n",$a->get_curl_headers());
 671                 foreach ($h as $l) {
 672                         list($k,$v) = array_map("trim", explode(":", trim($l), 2));
 673                         $headers[$k] = $v;
 674                 }
 675                 if (array_key_exists('Content-Type', $headers))
 676                         $type = $headers['Content-Type'];
 677         }
 678         if (is_null($type)){
 679                 // Guessing from extension? Isn't that... dangerous?
 680                 if (class_exists('Imagick') && file_exists($filename) && is_readable($filename)) {
 681                         /**
 682                          * Well, this not much better,
 683                          * but at least it comes from the data inside the image,
 684                          * we won't be tricked by a manipulated extension
 685                          */
 686                         $image = new Imagick($filename);
 687                         $type = $image->getImageMimeType();
 688                         $image->setInterlaceScheme(Imagick::INTERLACE_PLANE);
 689                 } else {
 690                         $ext = pathinfo($filename, PATHINFO_EXTENSION);
 691                         $types = Photo::supportedTypes();
 692                         $type = "image/jpeg";
 693                         foreach ($types as $m => $e){
 694                                 if ($ext == $e) {
 695                                         $type = $m;
 696                                 }
 697                         }
 698                 }
 699         }
 700         logger('Photo: guess_image_type: type='.$type, LOGGER_DEBUG);
 701         return $type;
 702
 703 }
 704
 705 /**
 706  * @brief Updates the avatar links in a contact only if needed
 707  *
 708  * @param string $avatar Link to avatar picture
 709  * @param int $uid User id of contact owner
 710  * @param int $cid Contact id
 711  * @param bool $force force picture update
 712  *
 713  * @return array Returns array of the different avatar sizes
 714  */
 715 function update_contact_avatar($avatar, $uid, $cid, $force = false) {
 716         $r = q("SELECT `avatar`, `photo`, `thumb`, `micro`, `nurl` FROM `contact` WHERE `id` = %d LIMIT 1", intval($cid));
 717         if (!DBM::is_result($r)) {
 718                 return false;
 719         } else {
 720                 $data = array($r[0]["photo"], $r[0]["thumb"], $r[0]["micro"]);
 721         }
 722
 723         if (($r[0]["avatar"] != $avatar) || $force) {
 724                 $photos = import_profile_photo($avatar, $uid, $cid, true);
 725
 726                 if ($photos) {
 727                         q("UPDATE `contact` SET `avatar` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s', `avatar-date` = '%s' WHERE `id` = %d",
 728                                 dbesc($avatar), dbesc($photos[0]), dbesc($photos[1]), dbesc($photos[2]),
 729                                 dbesc(datetime_convert()), intval($cid));
 730
 731                         // Update the public contact (contact id = 0)
 732                         if ($uid != 0) {
 733                                 $pcontact = dba::select('contact', array('id'), array('nurl' => $r[0]['nurl']), array('limit' => 1));
 734                                 if (DBM::is_result($pcontact)) {
 735                                         update_contact_avatar($avatar, 0, $pcontact['id'], $force);
 736                                 }
 737                         }
 738
 739                         return $photos;
 740                 }
 741         }
 742
 743         return $data;
 744 }
 745
 746 function import_profile_photo($photo, $uid, $cid, $quit_on_error = false) {
 747
 748         $r = q("SELECT `resource-id` FROM `photo` WHERE `uid` = %d AND `contact-id` = %d AND `scale` = 4 AND `album` = 'Contact Photos' LIMIT 1",
 749                 intval($uid),
 750                 intval($cid)
 751         );
 752         if (DBM::is_result($r) && strlen($r[0]['resource-id'])) {
 753                 $hash = $r[0]['resource-id'];
 754         } else {
 755                 $hash = photo_new_resource();
 756         }
 757
 758         $photo_failure = false;
 759
 760         $filename = basename($photo);
 761         $img_str = fetch_url($photo, true);
 762
 763         if ($quit_on_error && ($img_str == "")) {
 764                 return false;
 765         }
 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
 793                 $suffix = '?ts='.time();
 794
 795                 $photo = System::baseUrl() . '/photo/' . $hash . '-4.' . $img->getExt() . $suffix;
 796                 $thumb = System::baseUrl() . '/photo/' . $hash . '-5.' . $img->getExt() . $suffix;
 797                 $micro = System::baseUrl() . '/photo/' . $hash . '-6.' . $img->getExt() . $suffix;
 798
 799                 // Remove the cached photo
 800                 $a = get_app();
 801                 $basepath = $a->get_basepath();
 802
 803                 if (is_dir($basepath."/photo")) {
 804                         $filename = $basepath.'/photo/'.$hash.'-4.'.$img->getExt();
 805                         if (file_exists($filename)) {
 806                                 unlink($filename);
 807                         }
 808                         $filename = $basepath.'/photo/'.$hash.'-5.'.$img->getExt();
 809                         if (file_exists($filename)) {
 810                                 unlink($filename);
 811                         }
 812                         $filename = $basepath.'/photo/'.$hash.'-6.'.$img->getExt();
 813                         if (file_exists($filename)) {
 814                                 unlink($filename);
 815                         }
 816                 }
 817         } else {
 818                 $photo_failure = true;
 819         }
 820
 821         if ($photo_failure && $quit_on_error) {
 822                 return false;
 823         }
 824
 825         if ($photo_failure) {
 826                 $photo = System::baseUrl() . '/images/person-175.jpg';
 827                 $thumb = System::baseUrl() . '/images/person-80.jpg';
 828                 $micro = System::baseUrl() . '/images/person-48.jpg';
 829         }
 830
 831         return(array($photo,$thumb,$micro));
 832
 833 }
 834
 835 function get_photo_info($url) {
 836         $data = array();
 837
 838         $data = Cache::get($url);
 839
 840         if (is_null($data) || !$data || !is_array($data)) {
 841                 $img_str = fetch_url($url, true, $redirects, 4);
 842                 $filesize = strlen($img_str);
 843
 844                 if (function_exists("getimagesizefromstring")) {
 845                         $data = getimagesizefromstring($img_str);
 846                 } else {
 847                         $tempfile = tempnam(get_temppath(), "cache");
 848
 849                         $a = get_app();
 850                         $stamp1 = microtime(true);
 851                         file_put_contents($tempfile, $img_str);
 852                         $a->save_timestamp($stamp1, "file");
 853
 854                         $data = getimagesize($tempfile);
 855                         unlink($tempfile);
 856                 }
 857
 858                 if ($data) {
 859                         $data["size"] = $filesize;
 860                 }
 861
 862                 Cache::set($url, $data);
 863         }
 864
 865         return $data;
 866 }
 867
 868 function scale_image($width, $height, $max) {
 869
 870         $dest_width = $dest_height = 0;
 871
 872         if ((!$width) || (!$height)) {
 873                 return false;
 874         }
 875
 876         if ($width > $max && $height > $max) {
 877
 878                 // very tall image (greater than 16:9)
 879                 // constrain the width - let the height float.
 880
 881                 if ((($height * 9) / 16) > $width) {
 882                         $dest_width = $max;
 883                         $dest_height = intval(($height * $max) / $width);
 884                 } elseif ($width > $height) {
 885                         // else constrain both dimensions
 886                         $dest_width = $max;
 887                         $dest_height = intval(($height * $max) / $width);
 888                 } else {
 889                         $dest_width = intval(($width * $max) / $height);
 890                         $dest_height = $max;
 891                 }
 892         } else {
 893                 if ($width > $max) {
 894                         $dest_width = $max;
 895                         $dest_height = intval(($height * $max) / $width);
 896                 } else {
 897                         if ($height > $max) {
 898
 899                                 // very tall image (greater than 16:9)
 900                                 // but width is OK - don't do anything
 901
 902                                 if ((($height * 9) / 16) > $width) {
 903                                         $dest_width = $width;
 904                                         $dest_height = $height;
 905                                 } else {
 906                                         $dest_width = intval(($width * $max) / $height);
 907                                         $dest_height = $max;
 908                                 }
 909                         } else {
 910                                 $dest_width = $width;
 911                                 $dest_height = $height;
 912                         }
 913                 }
 914         }
 915         return array("width" => $dest_width, "height" => $dest_height);
 916 }
 917
 918 function store_photo(App $a, $uid, $imagedata = "", $url = "") {
 919         $r = q("SELECT `user`.`nickname`, `user`.`page-flags`, `contact`.`id` FROM `user` INNER JOIN `contact` on `user`.`uid` = `contact`.`uid`
 920                 WHERE `user`.`uid` = %d AND `user`.`blocked` = 0 AND `contact`.`self` = 1 LIMIT 1",
 921                 intval($uid));
 922
 923         if (!DBM::is_result($r)) {
 924                 logger("Can't detect user data for uid ".$uid, LOGGER_DEBUG);
 925                 return(array());
 926         }
 927
 928         $page_owner_nick  = $r[0]['nickname'];
 929
 930         /// @TODO
 931         /// $default_cid      = $r[0]['id'];
 932         /// $community_page   = (($r[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
 933
 934         if ((strlen($imagedata) == 0) && ($url == "")) {
 935                 logger("No image data and no url provided", LOGGER_DEBUG);
 936                 return(array());
 937         } elseif (strlen($imagedata) == 0) {
 938                 logger("Uploading picture from ".$url, LOGGER_DEBUG);
 939
 940                 $stamp1 = microtime(true);
 941                 $imagedata = @file_get_contents($url);
 942                 $a->save_timestamp($stamp1, "file");
 943         }
 944
 945         $maximagesize = Config::get('system', 'maximagesize');
 946
 947         if (($maximagesize) && (strlen($imagedata) > $maximagesize)) {
 948                 logger("Image exceeds size limit of ".$maximagesize, LOGGER_DEBUG);
 949                 return(array());
 950         }
 951
 952         $tempfile = tempnam(get_temppath(), "cache");
 953
 954         $stamp1 = microtime(true);
 955         file_put_contents($tempfile, $imagedata);
 956         $a->save_timestamp($stamp1, "file");
 957
 958         $data = getimagesize($tempfile);
 959
 960         if (!isset($data["mime"])) {
 961                 unlink($tempfile);
 962                 logger("File is no picture", LOGGER_DEBUG);
 963                 return(array());
 964         }
 965
 966         $ph = new Photo($imagedata, $data["mime"]);
 967
 968         if (!$ph->is_valid()) {
 969                 unlink($tempfile);
 970                 logger("Picture is no valid picture", LOGGER_DEBUG);
 971                 return(array());
 972         }
 973
 974         $ph->orient($tempfile);
 975         unlink($tempfile);
 976
 977         $max_length = Config::get('system', 'max_image_length');
 978         if (! $max_length) {
 979                 $max_length = MAX_IMAGE_LENGTH;
 980         }
 981         if ($max_length > 0) {
 982                 $ph->scaleImage($max_length);
 983         }
 984
 985         $width = $ph->getWidth();
 986         $height = $ph->getHeight();
 987
 988         $hash = photo_new_resource();
 989
 990         $smallest = 0;
 991
 992         // Pictures are always public by now
 993         //$defperm = '<'.$default_cid.'>';
 994         $defperm = "";
 995         $visitor = 0;
 996
 997         $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 0, 0, $defperm);
 998
 999         if (!$r) {
1000                 logger("Picture couldn't be stored", LOGGER_DEBUG);
1001                 return(array());
1002         }
1003
1004         $image = array("page" => System::baseUrl().'/photos/'.$page_owner_nick.'/image/'.$hash,
1005                         "full" => System::baseUrl()."/photo/{$hash}-0.".$ph->getExt());
1006
1007         if ($width > 800 || $height > 800) {
1008                 $image["large"] = System::baseUrl()."/photo/{$hash}-0.".$ph->getExt();
1009         }
1010
1011         if ($width > 640 || $height > 640) {
1012                 $ph->scaleImage(640);
1013                 $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 1, 0, $defperm);
1014                 if ($r) {
1015                         $image["medium"] = System::baseUrl()."/photo/{$hash}-1.".$ph->getExt();
1016                 }
1017         }
1018
1019         if ($width > 320 || $height > 320) {
1020                 $ph->scaleImage(320);
1021                 $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 2, 0, $defperm);
1022                 if ($r) {
1023                         $image["small"] = System::baseUrl()."/photo/{$hash}-2.".$ph->getExt();
1024                 }
1025         }
1026
1027         if ($width > 160 && $height > 160) {
1028                 $x = 0;
1029                 $y = 0;
1030
1031                 $min = $ph->getWidth();
1032                 if ($min > 160) {
1033                         $x = ($min - 160) / 2;
1034                 }
1035
1036                 if ($ph->getHeight() < $min) {
1037                         $min = $ph->getHeight();
1038                         if ($min > 160) {
1039                                 $y = ($min - 160) / 2;
1040                         }
1041                 }
1042
1043                 $min = 160;
1044                 $ph->cropImage(160, $x, $y, $min, $min);
1045
1046                 $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 3, 0, $defperm);
1047                 if ($r) {
1048                         $image["thumb"] = System::baseUrl()."/photo/{$hash}-3.".$ph->getExt();
1049                 }
1050         }
1051
1052         // Set the full image as preview image. This will be overwritten, if the picture is larger than 640.
1053         $image["preview"] = $image["full"];
1054
1055         // Deactivated, since that would result in a cropped preview, if the picture wasn't larger than 320
1056         //if (isset($image["thumb"]))
1057         //      $image["preview"] = $image["thumb"];
1058
1059         // Unsure, if this should be activated or deactivated
1060         //if (isset($image["small"]))
1061         //      $image["preview"] = $image["small"];
1062
1063         if (isset($image["medium"])) {
1064                 $image["preview"] = $image["medium"];
1065         }
1066
1067         return($image);
1068 }