+
+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($imagedata) == 0) && ($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 && $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);
+}