-
- /**
- * Guess image mimetype from filename or from Content-Type header
- *
- * @param string $filename Image filename
- * @param boolean $fromcurl Check Content-Type header from curl request
- * @param string $header passed headers to take into account
- *
- * @return object
- * @throws \ImagickException
- */
- public static function guessType($filename, $fromcurl = false, $header = '')
- {
- Logger::log('Image: guessType: '.$filename . ($fromcurl?' from curl headers':''), Logger::DEBUG);
- $type = null;
- if ($fromcurl) {
- $headers=[];
- $h = explode("\n", $header);
- foreach ($h as $l) {
- $data = array_map("trim", explode(":", trim($l), 2));
- if (count($data) > 1) {
- list($k,$v) = $data;
- $headers[$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 = self::supportedTypes();
- $type = "image/jpeg";
- foreach ($types as $m => $e) {
- if ($ext == $e) {
- $type = $m;
- }
- }
- }
- }
- Logger::log('Image: guessType: type='.$type, Logger::DEBUG);
- return $type;
- }
-
- /**
- * @param string $url url
- * @return object
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- public static function getInfoFromURL($url)
- {
- $data = [];
-
- if (empty($url)) {
- return $data;
- }
-
- $data = Cache::get($url);
-
- if (is_null($data) || !$data || !is_array($data)) {
- $img_str = Network::fetchUrl($url, true, $redirects, 4);
-
- if (!$img_str) {
- return false;
- }
-
- $filesize = strlen($img_str);
-
- try {
- 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);
- $a->getProfiler()->saveTimestamp($stamp1, "file");
-
- $data = getimagesize($tempfile);
- unlink($tempfile);
- }
- } catch (Exception $e) {
- return false;
- }
-
- if ($data) {
- $data["size"] = $filesize;
- }
-
- Cache::set($url, $data);
- }
-
- return $data;
- }
-
- /**
- * @param integer $width width
- * @param integer $height height
- * @param integer $max max
- * @return array
- */
- public static function getScalingDimensions($width, $height, $max)
- {
- if ((!$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 ["width" => $dest_width, "height" => $dest_height];
- }
-
- /**
- * @brief This function is used by the fromgplus addon
- * @param App $a App
- * @param integer $uid user id
- * @param string $imagedata optional, default empty
- * @param string $url optional, default empty
- * @return array
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- * @throws \ImagickException
- */
- public static function storePhoto(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 (!DBA::isResult($r)) {
- Logger::log("Can't detect user data for uid ".$uid, Logger::DEBUG);
- return([]);
- }
-
- $page_owner_nick = $r[0]['nickname'];
-
- /// @TODO
- /// $default_cid = $r[0]['id'];
- /// $community_page = (($r[0]['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
-
- if ((strlen($imagedata) == 0) && ($url == "")) {
- Logger::log("No image data and no url provided", Logger::DEBUG);
- return([]);
- } elseif (strlen($imagedata) == 0) {
- Logger::log("Uploading picture from ".$url, Logger::DEBUG);
-
- $stamp1 = microtime(true);
- $imagedata = @file_get_contents($url);
- $a->getProfiler()->saveTimestamp($stamp1, "file");
- }
-
- $maximagesize = Config::get('system', 'maximagesize');
-
- if (($maximagesize) && (strlen($imagedata) > $maximagesize)) {
- Logger::log("Image exceeds size limit of ".$maximagesize, Logger::DEBUG);
- return([]);
- }
-
- $tempfile = tempnam(get_temppath(), "cache");
-
- $stamp1 = microtime(true);
- file_put_contents($tempfile, $imagedata);
- $a->getProfiler()->saveTimestamp($stamp1, "file");
-
- $data = getimagesize($tempfile);
-
- if (!isset($data["mime"])) {
- unlink($tempfile);
- Logger::log("File is no picture", Logger::DEBUG);
- return([]);
- }
-
- $Image = new Image($imagedata, $data["mime"]);
-
- if (!$Image->isValid()) {
- unlink($tempfile);
- Logger::log("Picture is no valid picture", Logger::DEBUG);
- return([]);
- }
-
- $Image->orient($tempfile);
- unlink($tempfile);
-
- $max_length = Config::get('system', 'max_image_length');
- if (! $max_length) {
- $max_length = MAX_IMAGE_LENGTH;
- }
-
- if ($max_length > 0) {
- $Image->scaleDown($max_length);
- }
-
- $width = $Image->getWidth();
- $height = $Image->getHeight();
-
- $hash = Photo::newResource();
-
- // Pictures are always public by now
- //$defperm = '<'.$default_cid.'>';
- $defperm = "";
- $visitor = 0;
-
- $r = Photo::store($Image, $uid, $visitor, $hash, $tempfile, L10n::t('Wall Photos'), 0, 0, $defperm);
-
- if (!$r) {
- Logger::log("Picture couldn't be stored", Logger::DEBUG);
- return([]);
- }
-
- $image = ["page" => System::baseUrl().'/photos/'.$page_owner_nick.'/image/'.$hash,
- "full" => System::baseUrl()."/photo/{$hash}-0.".$Image->getExt()];
-
- if ($width > 800 || $height > 800) {
- $image["large"] = System::baseUrl()."/photo/{$hash}-0.".$Image->getExt();
- }
-
- if ($width > 640 || $height > 640) {
- $Image->scaleDown(640);
- $r = Photo::store($Image, $uid, $visitor, $hash, $tempfile, L10n::t('Wall Photos'), 1, 0, $defperm);
- if ($r) {
- $image["medium"] = System::baseUrl()."/photo/{$hash}-1.".$Image->getExt();
- }
- }
-
- if ($width > 320 || $height > 320) {
- $Image->scaleDown(320);
- $r = Photo::store($Image, $uid, $visitor, $hash, $tempfile, L10n::t('Wall Photos'), 2, 0, $defperm);
- if ($r) {
- $image["small"] = System::baseUrl()."/photo/{$hash}-2.".$Image->getExt();
- }
- }
-
- if ($width > 160 && $height > 160) {
- $x = 0;
- $y = 0;
-
- $min = $Image->getWidth();
- if ($min > 160) {
- $x = ($min - 160) / 2;
- }
-
- if ($Image->getHeight() < $min) {
- $min = $Image->getHeight();
- if ($min > 160) {
- $y = ($min - 160) / 2;
- }
- }
-
- $min = 160;
- $Image->crop(160, $x, $y, $min, $min);
-
- $r = Photo::store($Image, $uid, $visitor, $hash, $tempfile, L10n::t('Wall Photos'), 3, 0, $defperm);
- if ($r) {
- $image["thumb"] = System::baseUrl()."/photo/{$hash}-3.".$Image->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);
- }