<?php /** * @file include/Photo.php * @brief This file contains the Photo class for image processing */ require_once("include/photos.php"); class Photo { private $image; /* * Put back gd stuff, not everybody have Imagick */ private $imagick; private $width; private $height; private $valid; private $type; private $types; /** * @brief supported mimetypes and corresponding file extensions */ static function supportedTypes() { if (class_exists('Imagick')) { // Imagick::queryFormats won't help us a lot there... // At least, not yet, other parts of friendica uses this array $t = array( 'image/jpeg' => 'jpg', 'image/png' => 'png', 'image/gif' => 'gif' ); } else { $t = array(); $t['image/jpeg'] ='jpg'; if (imagetypes() & IMG_PNG) { $t['image/png'] = 'png'; } } return $t; } public function __construct($data, $type=null) { $this->imagick = class_exists('Imagick'); $this->types = $this->supportedTypes(); if (!array_key_exists($type, $this->types)){ $type='image/jpeg'; } $this->type = $type; if ($this->is_imagick() && $this->load_data($data)) { return true; } else { // Failed to load with Imagick, fallback $this->imagick = false; } return $this->load_data($data); } public function __destruct() { if ($this->image) { if ($this->is_imagick()) { $this->image->clear(); $this->image->destroy(); return; } imagedestroy($this->image); } } public function is_imagick() { return $this->imagick; } /** * @brief Maps Mime types to Imagick formats * @return arr With with image formats (mime type as key) */ public function get_FormatsMap() { $m = array( 'image/jpeg' => 'JPG', 'image/png' => 'PNG', 'image/gif' => 'GIF' ); return $m; } private function load_data($data) { if ($this->is_imagick()) { $this->image = new Imagick(); try { $this->image->readImageBlob($data); } catch (Exception $e) { // Imagick couldn't use the data return false; } /* * Setup the image to the format it will be saved to */ $map = $this->get_FormatsMap(); $format = $map[$type]; $this->image->setFormat($format); // Always coalesce, if it is not a multi-frame image it won't hurt anyway $this->image = $this->image->coalesceImages(); /* * setup the compression here, so we'll do it only once */ switch($this->getType()){ case "image/png": $quality = get_config('system', 'png_quality'); if ((! $quality) || ($quality > 9)) { $quality = PNG_QUALITY; } /* * From http://www.imagemagick.org/script/command-line-options.php#quality: * * 'For the MNG and PNG image formats, the quality value sets * the zlib compression level (quality / 10) and filter-type (quality % 10). * The default PNG "quality" is 75, which means compression level 7 with adaptive PNG filtering, * unless the image has a color map, in which case it means compression level 7 with no PNG filtering' */ $quality = $quality * 10; $this->image->setCompressionQuality($quality); break; case "image/jpeg": $quality = get_config('system', 'jpeg_quality'); if ((! $quality) || ($quality > 100)) { $quality = JPEG_QUALITY; } $this->image->setCompressionQuality($quality); } // The 'width' and 'height' properties are only used by non-Imagick routines. $this->width = $this->image->getImageWidth(); $this->height = $this->image->getImageHeight(); $this->valid = true; return true; } $this->valid = false; $this->image = @imagecreatefromstring($data); if ($this->image !== false) { $this->width = imagesx($this->image); $this->height = imagesy($this->image); $this->valid = true; imagealphablending($this->image, false); imagesavealpha($this->image, true); return true; } return false; } public function is_valid() { if ($this->is_imagick()) { return ($this->image !== false); } return $this->valid; } public function getWidth() { if (!$this->is_valid()) { return false; } if ($this->is_imagick()) { return $this->image->getImageWidth(); } return $this->width; } public function getHeight() { if (!$this->is_valid()) { return false; } if ($this->is_imagick()) { return $this->image->getImageHeight(); } return $this->height; } public function getImage() { if (!$this->is_valid()) { return false; } if ($this->is_imagick()) { /* Clean it */ $this->image = $this->image->deconstructImages(); return $this->image; } return $this->image; } public function getType() { if (!$this->is_valid()) { return false; } return $this->type; } public function getExt() { if (!$this->is_valid()) { return false; } return $this->types[$this->getType()]; } public function scaleImage($max) { if (!$this->is_valid()) { return false; } $width = $this->getWidth(); $height = $this->getHeight(); $dest_width = $dest_height = 0; if ((! $width)|| (! $height)) { return false; } if ($width > $max && $height > $max) { // very tall image (greater than 16:9) // constrain the width - let the height float. if ((($height * 9) / 16) > $width) { $dest_width = $max; $dest_height = intval(($height * $max) / $width); } elseif ($width > $height) { // else constrain both dimensions $dest_width = $max; $dest_height = intval(($height * $max) / $width); } else { $dest_width = intval(($width * $max) / $height); $dest_height = $max; } } else { if ($width > $max) { $dest_width = $max; $dest_height = intval(($height * $max) / $width); } else { if ($height > $max) { // very tall image (greater than 16:9) // but width is OK - don't do anything if ((($height * 9) / 16) > $width) { $dest_width = $width; $dest_height = $height; } else { $dest_width = intval(($width * $max) / $height); $dest_height = $max; } } else { $dest_width = $width; $dest_height = $height; } } } if ($this->is_imagick()) { /* * If it is not animated, there will be only one iteration here, * so don't bother checking */ // Don't forget to go back to the first frame $this->image->setFirstIterator(); do { // FIXME - implement horizantal bias for scaling as in followin GD functions // to allow very tall images to be constrained only horizontally. $this->image->scaleImage($dest_width, $dest_height); } while ($this->image->nextImage()); // These may not be necessary any more $this->width = $this->image->getImageWidth(); $this->height = $this->image->getImageHeight(); return; } $dest = imagecreatetruecolor($dest_width, $dest_height); imagealphablending($dest, false); imagesavealpha($dest, true); if ($this->type=='image/png') { imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha } imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height); if ($this->image) { imagedestroy($this->image); } $this->image = $dest; $this->width = imagesx($this->image); $this->height = imagesy($this->image); } public function rotate($degrees) { if (!$this->is_valid()) { return false; } if ($this->is_imagick()) { $this->image->setFirstIterator(); do { $this->image->rotateImage(new ImagickPixel(), -$degrees); // ImageMagick rotates in the opposite direction of imagerotate() } while ($this->image->nextImage()); return; } $this->image = imagerotate($this->image,$degrees,0); $this->width = imagesx($this->image); $this->height = imagesy($this->image); } public function flip($horiz = true, $vert = false) { if (!$this->is_valid()) { return false; } if ($this->is_imagick()) { $this->image->setFirstIterator(); do { if ($horiz) { $this->image->flipImage(); } if ($vert) { $this->image->flopImage(); } } while ($this->image->nextImage()); return; } $w = imagesx($this->image); $h = imagesy($this->image); $flipped = imagecreate($w, $h); if ($horiz) { for ($x = 0; $x < $w; $x++) { imagecopy($flipped, $this->image, $x, 0, $w - $x - 1, 0, 1, $h); } } if ($vert) { for ($y = 0; $y < $h; $y++) { imagecopy($flipped, $this->image, 0, $y, 0, $h - $y - 1, $w, 1); } } $this->image = $flipped; } public function orient($filename) { if ($this->is_imagick()) { // based off comment on http://php.net/manual/en/imagick.getimageorientation.php $orientation = $this->image->getImageOrientation(); switch ($orientation) { case imagick::ORIENTATION_BOTTOMRIGHT: $this->image->rotateimage("#000", 180); break; case imagick::ORIENTATION_RIGHTTOP: $this->image->rotateimage("#000", 90); break; case imagick::ORIENTATION_LEFTBOTTOM: $this->image->rotateimage("#000", -90); break; } $this->image->setImageOrientation(imagick::ORIENTATION_TOPLEFT); return true; } // based off comment on http://php.net/manual/en/function.imagerotate.php if (!$this->is_valid()) { return false; } if ((!function_exists('exif_read_data')) || ($this->getType() !== 'image/jpeg')) { return; } $exif = @exif_read_data($filename,null,true); if (!$exif) { return; } $ort = $exif['IFD0']['Orientation']; switch($ort) { case 1: // nothing break; case 2: // horizontal flip $this->flip(); break; case 3: // 180 rotate left $this->rotate(180); break; case 4: // vertical flip $this->flip(false, true); break; case 5: // vertical flip + 90 rotate right $this->flip(false, true); $this->rotate(-90); break; case 6: // 90 rotate right $this->rotate(-90); break; case 7: // horizontal flip + 90 rotate right $this->flip(); $this->rotate(-90); break; case 8: // 90 rotate left $this->rotate(90); break; } // logger('exif: ' . print_r($exif,true)); return $exif; } public function scaleImageUp($min) { if (!$this->is_valid()) { return false; } $width = $this->getWidth(); $height = $this->getHeight(); $dest_width = $dest_height = 0; if ((!$width)|| (!$height)) { return false; } if ($width < $min && $height < $min) { if ($width > $height) { $dest_width = $min; $dest_height = intval(($height * $min) / $width); } else { $dest_width = intval(($width * $min) / $height); $dest_height = $min; } } else { if ($width < $min) { $dest_width = $min; $dest_height = intval(($height * $min) / $width); } else { if ($height < $min) { $dest_width = intval(($width * $min) / $height); $dest_height = $min; } else { $dest_width = $width; $dest_height = $height; } } } if ($this->is_imagick()) { return $this->scaleImage($dest_width, $dest_height); } $dest = imagecreatetruecolor($dest_width, $dest_height); imagealphablending($dest, false); imagesavealpha($dest, true); if ($this->type=='image/png') { imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha } imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dest_width, $dest_height, $width, $height); if ($this->image) { imagedestroy($this->image); } $this->image = $dest; $this->width = imagesx($this->image); $this->height = imagesy($this->image); } public function scaleImageSquare($dim) { if (!$this->is_valid()) { return false; } if ($this->is_imagick()) { $this->image->setFirstIterator(); do { $this->image->scaleImage($dim, $dim); } while ($this->image->nextImage()); return; } $dest = imagecreatetruecolor($dim, $dim); imagealphablending($dest, false); imagesavealpha($dest, true); if ($this->type=='image/png') { imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha } imagecopyresampled($dest, $this->image, 0, 0, 0, 0, $dim, $dim, $this->width, $this->height); if ($this->image) { imagedestroy($this->image); } $this->image = $dest; $this->width = imagesx($this->image); $this->height = imagesy($this->image); } public function cropImage($max, $x, $y, $w, $h) { if (!$this->is_valid()) { return false; } if ($this->is_imagick()) { $this->image->setFirstIterator(); do { $this->image->cropImage($w, $h, $x, $y); /* * We need to remove the canva, * or the image is not resized to the crop: * http://php.net/manual/en/imagick.cropimage.php#97232 */ $this->image->setImagePage(0, 0, 0, 0); } while ($this->image->nextImage()); return $this->scaleImage($max); } $dest = imagecreatetruecolor($max, $max); imagealphablending($dest, false); imagesavealpha($dest, true); if ($this->type=='image/png') { imagefill($dest, 0, 0, imagecolorallocatealpha($dest, 0, 0, 0, 127)); // fill with alpha } imagecopyresampled($dest, $this->image, 0, 0, $x, $y, $max, $max, $w, $h); if ($this->image) { imagedestroy($this->image); } $this->image = $dest; $this->width = imagesx($this->image); $this->height = imagesy($this->image); } public function saveImage($path) { if (!$this->is_valid()) { return false; } $string = $this->imageString(); $a = get_app(); $stamp1 = microtime(true); file_put_contents($path, $string); $a->save_timestamp($stamp1, "file"); } public function imageString() { if (!$this->is_valid()) { return false; } if ($this->is_imagick()) { /* Clean it */ $this->image = $this->image->deconstructImages(); $string = $this->image->getImagesBlob(); return $string; } $quality = false; ob_start(); // Enable interlacing imageinterlace($this->image, true); switch($this->getType()){ case "image/png": $quality = get_config('system', 'png_quality'); if ((!$quality) || ($quality > 9)) { $quality = PNG_QUALITY; } imagepng($this->image, null, $quality); break; case "image/jpeg": $quality = get_config('system', 'jpeg_quality'); if ((!$quality) || ($quality > 100)) { $quality = JPEG_QUALITY; } imagejpeg($this->image, null, $quality); } $string = ob_get_contents(); ob_end_clean(); return $string; } public function store($uid, $cid, $rid, $filename, $album, $scale, $profile = 0, $allow_cid = '', $allow_gid = '', $deny_cid = '', $deny_gid = '') { $r = q("SELECT `guid` FROM `photo` WHERE `resource-id` = '%s' AND `guid` != '' LIMIT 1", dbesc($rid) ); if (dbm::is_result($r)) { $guid = $r[0]['guid']; } else { $guid = get_guid(); } $x = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d AND `contact-id` = %d AND `scale` = %d LIMIT 1", dbesc($rid), intval($uid), intval($cid), intval($scale) ); if (dbm::is_result($x)) { $r = q("UPDATE `photo` SET `uid` = %d, `contact-id` = %d, `guid` = '%s', `resource-id` = '%s', `created` = '%s', `edited` = '%s', `filename` = '%s', `type` = '%s', `album` = '%s', `height` = %d, `width` = %d, `datasize` = %d, `data` = '%s', `scale` = %d, `profile` = %d, `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s' WHERE `id` = %d", intval($uid), intval($cid), dbesc($guid), dbesc($rid), dbesc(datetime_convert()), dbesc(datetime_convert()), dbesc(basename($filename)), dbesc($this->getType()), dbesc($album), intval($this->getHeight()), intval($this->getWidth()), dbesc(strlen($this->imageString())), dbesc($this->imageString()), intval($scale), intval($profile), dbesc($allow_cid), dbesc($allow_gid), dbesc($deny_cid), dbesc($deny_gid), intval($x[0]['id']) ); } else { $r = q("INSERT INTO `photo` (`uid`, `contact-id`, `guid`, `resource-id`, `created`, `edited`, `filename`, type, `album`, `height`, `width`, `datasize`, `data`, `scale`, `profile`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`) VALUES (%d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, '%s', %d, %d, '%s', '%s', '%s', '%s')", intval($uid), intval($cid), dbesc($guid), dbesc($rid), dbesc(datetime_convert()), dbesc(datetime_convert()), dbesc(basename($filename)), dbesc($this->getType()), dbesc($album), intval($this->getHeight()), intval($this->getWidth()), dbesc(strlen($this->imageString())), dbesc($this->imageString()), intval($scale), intval($profile), dbesc($allow_cid), dbesc($allow_gid), dbesc($deny_cid), dbesc($deny_gid) ); } return $r; } } /** * Guess image mimetype from filename or from Content-Type header * * @arg $filename string Image filename * @arg $fromcurl boolean Check Content-Type header from curl request */ function guess_image_type($filename, $fromcurl=false) { logger('Photo: guess_image_type: '.$filename . ($fromcurl?' from curl headers':''), LOGGER_DEBUG); $type = null; if ($fromcurl) { $a = get_app(); $headers=array(); $h = explode("\n",$a->get_curl_headers()); foreach ($h as $l) { list($k,$v) = array_map("trim", explode(":", trim($l), 2)); $headers[$k] = $v; } if (array_key_exists('Content-Type', $headers)) $type = $headers['Content-Type']; } if (is_null($type)){ // Guessing from extension? Isn't that... dangerous? if (class_exists('Imagick') && file_exists($filename) && is_readable($filename)) { /** * Well, this not much better, * but at least it comes from the data inside the image, * we won't be tricked by a manipulated extension */ $image = new Imagick($filename); $type = $image->getImageMimeType(); $image->setInterlaceScheme(Imagick::INTERLACE_PLANE); } else { $ext = pathinfo($filename, PATHINFO_EXTENSION); $types = Photo::supportedTypes(); $type = "image/jpeg"; foreach ($types as $m => $e){ if ($ext == $e) { $type = $m; } } } } logger('Photo: guess_image_type: type='.$type, LOGGER_DEBUG); return $type; } /** * @brief Updates the avatar links in a contact only if needed * * @param string $avatar Link to avatar picture * @param int $uid User id of contact owner * @param int $cid Contact id * @param bool $force force picture update * * @return array Returns array of the different avatar sizes */ function update_contact_avatar($avatar, $uid, $cid, $force = false) { $r = q("SELECT `avatar`, `photo`, `thumb`, `micro` FROM `contact` WHERE `id` = %d LIMIT 1", intval($cid)); if (!dbm::is_result($r)) { return false; } else { $data = array($r[0]["photo"], $r[0]["thumb"], $r[0]["micro"]); } if (($r[0]["avatar"] != $avatar) OR $force) { $photos = import_profile_photo($avatar, $uid, $cid, true); if ($photos) { q("UPDATE `contact` SET `avatar` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s', `avatar-date` = '%s' WHERE `id` = %d", dbesc($avatar), dbesc($photos[0]), dbesc($photos[1]), dbesc($photos[2]), dbesc(datetime_convert()), intval($cid)); return $photos; } } return $data; } function import_profile_photo($photo, $uid, $cid, $quit_on_error = false) { $r = q("SELECT `resource-id` FROM `photo` WHERE `uid` = %d AND `contact-id` = %d AND `scale` = 4 AND `album` = 'Contact Photos' LIMIT 1", intval($uid), intval($cid) ); if (dbm::is_result($r) && strlen($r[0]['resource-id'])) { $hash = $r[0]['resource-id']; } else { $hash = photo_new_resource(); } $photo_failure = false; $filename = basename($photo); $img_str = fetch_url($photo, true); if ($quit_on_error AND ($img_str == "")) { return false; } $type = guess_image_type($photo, true); $img = new Photo($img_str, $type); if ($img->is_valid()) { $img->scaleImageSquare(175); $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 4); if ($r === false) $photo_failure = true; $img->scaleImage(80); $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 5); if ($r === false) $photo_failure = true; $img->scaleImage(48); $r = $img->store($uid, $cid, $hash, $filename, 'Contact Photos', 6); if ($r === false) { $photo_failure = true; } $photo = App::get_baseurl() . '/photo/' . $hash . '-4.' . $img->getExt(); $thumb = App::get_baseurl() . '/photo/' . $hash . '-5.' . $img->getExt(); $micro = App::get_baseurl() . '/photo/' . $hash . '-6.' . $img->getExt(); } else { $photo_failure = true; } if ($photo_failure AND $quit_on_error) { return false; } if ($photo_failure) { $photo = App::get_baseurl() . '/images/person-175.jpg'; $thumb = App::get_baseurl() . '/images/person-80.jpg'; $micro = App::get_baseurl() . '/images/person-48.jpg'; } return(array($photo,$thumb,$micro)); } function get_photo_info($url) { $data = array(); $data = Cache::get($url); if (is_null($data) OR !$data OR !is_array($data)) { $img_str = fetch_url($url, true, $redirects, 4); $filesize = strlen($img_str); if (function_exists("getimagesizefromstring")) { $data = getimagesizefromstring($img_str); } else { $tempfile = tempnam(get_temppath(), "cache"); $a = get_app(); $stamp1 = microtime(true); file_put_contents($tempfile, $img_str); $a->save_timestamp($stamp1, "file"); $data = getimagesize($tempfile); unlink($tempfile); } if ($data) { $data["size"] = $filesize; } Cache::set($url, $data); } return $data; } function scale_image($width, $height, $max) { $dest_width = $dest_height = 0; if ((!$width) || (!$height)) { return false; } if ($width > $max && $height > $max) { // very tall image (greater than 16:9) // constrain the width - let the height float. if ((($height * 9) / 16) > $width) { $dest_width = $max; $dest_height = intval(($height * $max) / $width); } elseif ($width > $height) { // else constrain both dimensions $dest_width = $max; $dest_height = intval(($height * $max) / $width); } else { $dest_width = intval(($width * $max) / $height); $dest_height = $max; } } else { if ($width > $max) { $dest_width = $max; $dest_height = intval(($height * $max) / $width); } else { if ($height > $max) { // very tall image (greater than 16:9) // but width is OK - don't do anything if ((($height * 9) / 16) > $width) { $dest_width = $width; $dest_height = $height; } else { $dest_width = intval(($width * $max) / $height); $dest_height = $max; } } else { $dest_width = $width; $dest_height = $height; } } } return array("width" => $dest_width, "height" => $dest_height); } function store_photo(App $a, $uid, $imagedata = "", $url = "") { $r = q("SELECT `user`.`nickname`, `user`.`page-flags`, `contact`.`id` FROM `user` INNER JOIN `contact` on `user`.`uid` = `contact`.`uid` WHERE `user`.`uid` = %d AND `user`.`blocked` = 0 AND `contact`.`self` = 1 LIMIT 1", intval($uid)); if (!dbm::is_result($r)) { logger("Can't detect user data for uid ".$uid, LOGGER_DEBUG); return(array()); } $page_owner_nick = $r[0]['nickname']; /// @TODO /// $default_cid = $r[0]['id']; /// $community_page = (($r[0]['page-flags'] == PAGE_COMMUNITY) ? true : false); if ((strlen($imagedata) == 0) AND ($url == "")) { logger("No image data and no url provided", LOGGER_DEBUG); return(array()); } elseif (strlen($imagedata) == 0) { logger("Uploading picture from ".$url, LOGGER_DEBUG); $stamp1 = microtime(true); $imagedata = @file_get_contents($url); $a->save_timestamp($stamp1, "file"); } $maximagesize = get_config('system', 'maximagesize'); if (($maximagesize) && (strlen($imagedata) > $maximagesize)) { logger("Image exceeds size limit of ".$maximagesize, LOGGER_DEBUG); return(array()); } /* $r = q("select sum(octet_length(data)) as total from photo where uid = %d and scale = 0 and album != 'Contact Photos' ", intval($uid) ); $limit = service_class_fetch($uid,'photo_upload_limit'); if (($limit !== false) && (($r[0]['total'] + strlen($imagedata)) > $limit)) { logger("Image exceeds personal limit of uid ".$uid, LOGGER_DEBUG); return(array()); } */ $tempfile = tempnam(get_temppath(), "cache"); $stamp1 = microtime(true); file_put_contents($tempfile, $imagedata); $a->save_timestamp($stamp1, "file"); $data = getimagesize($tempfile); if (!isset($data["mime"])) { unlink($tempfile); logger("File is no picture", LOGGER_DEBUG); return(array()); } $ph = new Photo($imagedata, $data["mime"]); if (!$ph->is_valid()) { unlink($tempfile); logger("Picture is no valid picture", LOGGER_DEBUG); return(array()); } $ph->orient($tempfile); unlink($tempfile); $max_length = get_config('system', 'max_image_length'); if (! $max_length) { $max_length = MAX_IMAGE_LENGTH; } if ($max_length > 0) { $ph->scaleImage($max_length); } $width = $ph->getWidth(); $height = $ph->getHeight(); $hash = photo_new_resource(); $smallest = 0; // Pictures are always public by now //$defperm = '<'.$default_cid.'>'; $defperm = ""; $visitor = 0; $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 0, 0, $defperm); if (!$r) { logger("Picture couldn't be stored", LOGGER_DEBUG); return(array()); } $image = array("page" => App::get_baseurl().'/photos/'.$page_owner_nick.'/image/'.$hash, "full" => App::get_baseurl()."/photo/{$hash}-0.".$ph->getExt()); if ($width > 800 || $height > 800) { $image["large"] = App::get_baseurl()."/photo/{$hash}-0.".$ph->getExt(); } if ($width > 640 || $height > 640) { $ph->scaleImage(640); $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 1, 0, $defperm); if ($r) { $image["medium"] = App::get_baseurl()."/photo/{$hash}-1.".$ph->getExt(); } } if ($width > 320 || $height > 320) { $ph->scaleImage(320); $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 2, 0, $defperm); if ($r) { $image["small"] = App::get_baseurl()."/photo/{$hash}-2.".$ph->getExt(); } } if ($width > 160 AND $height > 160) { $x = 0; $y = 0; $min = $ph->getWidth(); if ($min > 160) { $x = ($min - 160) / 2; } if ($ph->getHeight() < $min) { $min = $ph->getHeight(); if ($min > 160) { $y = ($min - 160) / 2; } } $min = 160; $ph->cropImage(160, $x, $y, $min, $min); $r = $ph->store($uid, $visitor, $hash, $tempfile, t('Wall Photos'), 3, 0, $defperm); if ($r) { $image["thumb"] = App::get_baseurl()."/photo/{$hash}-3.".$ph->getExt(); } } // Set the full image as preview image. This will be overwritten, if the picture is larger than 640. $image["preview"] = $image["full"]; // Deactivated, since that would result in a cropped preview, if the picture wasn't larger than 320 //if (isset($image["thumb"])) // $image["preview"] = $image["thumb"]; // Unsure, if this should be activated or deactivated //if (isset($image["small"])) // $image["preview"] = $image["small"]; if (isset($image["medium"])) { $image["preview"] = $image["medium"]; } return($image); }