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<?php /** * @package Joomla * @subpackage Fabrik.image * @copyright Copyright (C) 2005-2020 Media A-Team, Inc. - All rights reserved. * @license GNU/GPL http://www.gnu.org/copyleft/gpl.html / namespace Fabrik\Helpers\Image; defined('_JEXEC') or die; use Joomla\CMS\Factory; use Joomla\CMS\Filesystem\File; use Joomla\CMS\Filesystem\Folder; use Fabrik\Helpers\ArrayHelper; use Fabrik\Helpers\StringHelper; /* * Base image manipulation class * * @package Joomla * @subpackage Fabrik.helpers * @copyright Copyright (C) 2005 Fabrik. All rights reserved. * @license GNU General Public License version 2 or later; see LICENSE.txt * @since 1.0 / class Image { /* * Thumbnail image path * * @var string / protected $thumbPath = null; /* * Storage class file/amazons3 etc. * * @var object / public $storage = null; /* * Set the filesystem storage manager * * @param object &$storage storage object * * @return void / public function setStorage(&$storage) { $this->storage = $storage; } /* * Get the image type git/jpg/png * * @param string $filename image file path * * @return string / public function getImgType($filename) { $info = getimagesize($filename); switch ($info[2]) { case 1: return 'gif'; break; case 2: return 'jpg'; break; case 3: return 'png'; break; default: $pathInfo = pathInfo($filename); if (ArrayHelper::getValue($pathInfo, 'extension', '') === 'pdf') { return 'pdf'; }; return false; break; } } /* * Resize an image to a specific width/height * * @param int $maxWidth maximum image Width (px) * @param int $maxHeight maximum image Height (px) * @param string $origFile current images folder path (must have trailing end slash) * @param string $destFile destination folder path for resized image (must have trailing end slash) * @param int $quality Percentage image save quality 100 = no compression, 0 = max compression * * @return object image / public function resize($maxWidth, $maxHeight, $origFile, $destFile, $quality = 100) { } /* * Grab an image from a remote URI and store in cache, then serve cached image * * @param string $src Remote URI to image * @param string $path Local folder to store the image in e.g. 'cache/com_fabrik/images' * @param string $file Local filename * @param integer $lifeTime Number of days to cache the image for * * @return boolean\|string Local URI to cached image / public static function cacheRemote($src, $path, $file, $lifeTime = 29) { /* * $$$ @FIXME we may need to find something other than file_get_contents($src) * to use for this, as it requires allow_url_fopen to be enabled in PHP to fetch a URL, * which a lot of shared hosts don't allow. * * -Rob - well File::read is deprecated and in the code it says to use file_get_contents * The Joomla updater won't work with out file_get_contents so I think we should make it a requirement * Wiki updated here - http://fabrikar.com/forums/index.php?wiki/prerequisites/ * * hugh - Okie Dokie. / /* * $$$ @FIXME - hugh - as we're producing files with names like: * * center=34.732267,-86.587593.zoom=10.size=300x250.maptype=roadmap.mobile=true.markers=34.732267,-86.587593.sensor=false.png * * ... we should probably clean $file, replace non alphanumeric chars with * underscores, as filenames with things like commas, = signs etc. could be problematic, both in * the file system, and on the IMG URL. * * EDIT - hopefully just md5()'ing the file should fix the above, needed to do it as we finally had * someone report a problem with invalid file name, see ... * * https://github.com/Fabrik/fabrik/pull/1307 * * So ... just preserve original extension (if any) and append it to md5() of file name. / $ext = pathinfo($file, PATHINFO_EXTENSION); $file = md5($file); if (!empty($ext)) { $file .= '.' . $ext; } $folder = JPATH_SITE . '/' . ltrim($path, '/'); // For SSL a user agent may need to be set. ini_set('user_agent', 'Mozilla/4.0 (compatible; MSIE 6.0)'); if (!Folder::exists($folder)) { Folder::create($folder); } // make sure we have one, and only one, / on the end of folder. Really should add a helper for this which looks for legacy \ as well! $folder = rtrim($folder, '/') . '/'; $cacheFile = $folder . $file; // result to test file_put_contents() with $res = false; // Check for cached version if (File::exists($cacheFile)) { // Check its age- Google T&C allow you to store for no more than 30 days. $createDate = Factory::getDate(filemtime($cacheFile)); $now = Factory::getDate(); $interval = $now->diff($createDate); $daysOld = (float) $interval->format('%R%a'); if ($daysOld < -$lifeTime) { // Remove out of date File::delete($cacheFile); // Grab image from Google and store $res = file_put_contents($cacheFile, file_get_contents($src)); } else { $res = true; } } else { // No cached image, grab image from remote URI and store locally $res = file_put_contents($cacheFile, file_get_contents($src)); } if ($res === false) { $src = false; } else { $src = COM_FABRIK_LIVESITE . $path . $file; } return $src; } /* * Exif to number * * @param string $value Value * @param string $format Format * * @return string / public static function exifToNumber($value, $format) { $pos = StringHelper::strpos($value, '/'); if ($pos === false) { return sprintf($format, $value); } else { $bits = explode('/', $value, 2); $base = ArrayHelper::getValue($bits, 0); $divider = ArrayHelper::getValue($bits, 1); return ($divider == 0) ? sprintf($format, 0) : sprintf($format, ($base / $divider)); } } /* * Exif to coordinate * * @param string $reference Reference * @param string $coordinate Coordinates * * @return string / public static function exifToCoordinate($reference, $coordinate) { $prefix = ($reference == 'S' \|\| $reference == 'W') ? '-' : ''; return $prefix . sprintf('%.6F', self::exifToNumber($coordinate[0], '%.6F') + (((self::exifToNumber($coordinate[1], '%.6F') 60) + (self::exifToNumber($coordinate[2], '%.6F'))) / 3600) ); } /** * Get coordinates * * @param string $filename File name * * @return array\|boolean / public static function getExifCoordinates($filename) { if (extension_loaded('exif')) { $exif = exif_read_data($filename, 'EXIF'); if (isset($exif['GPSLatitudeRef']) && isset($exif['GPSLatitude']) && isset($exif['GPSLongitudeRef']) && isset($exif['GPSLongitude'])) { return array(self::exifToCoordinate($exif['GPSLatitudeRef'], $exif['GPSLatitude']), self::exifToCoordinate($exif['GPSLongitudeRef'], $exif['GPSLongitude'])); } } return false; } /* * Set coordinates to DMS * * @param string $coordinate Image coordinate * @param number $pos Position * @param number $neg Negative * * @return string / public static function coordinate2DMS($coordinate, $pos, $neg) { $sign = $coordinate >= 0 ? $pos : $neg; $coordinate = abs($coordinate); $degree = intval($coordinate); $coordinate = ($coordinate - $degree) 60; $minute = intval($coordinate); $second = ($coordinate - $minute) * 60; return sprintf("%s %d° %02d′ %05.2f″", $sign, $degree, $minute, $second); } }

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