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<?php /** * Image manipulation helper * * @package Joomla * @subpackage Fabrik.helpers * @copyright Copyright (C) 2005-2016 Media A-Team, Inc. - All rights reserved. * @license GNU/GPL http://www.gnu.org/copyleft/gpl.html / // No direct access defined('_JEXEC') or die('Restricted access'); /* * Image manipulation class * * @package Joomla * @subpackage Fabrik.helpers * @copyright Copyright (C) 2005-2016 Media A-Team, Inc. - All rights reserved. * @license GNU/GPL http://www.gnu.org/copyleft/gpl.html * @since 1.0 / class FabimageHelper { /* * Get an array of available graphics libraries * * @return array / public static function getLibs() { $libs = array(); $gds = self::testGD(); foreach ($gds as $key => $val) { $libs[] = JHTML::_('select.option', $key, $val); } $im = self::testImagemagick(); foreach ($im as $key => $val) { $libs[] = JHTML::_('select.option', $key, $val); } return $libs; } /* * load in the correct image library * * @param string $lib image lib to load * * @return Fabimage image lib / public static function loadLib($lib) { $class = "Fabimage" . $lib; if (class_exists($class)) { return new $class; } else { throw new RuntimeException("Fabrik: can't load image class: $class"); } } /* * Test if the GD library is available * * @return array / protected static function testGD() { $gd = array(); $output = ''; $gdVersion = null; $gdInfo = null; //$GDfuncList = get_extension_funcs('gd'); if (function_exists('gd_info')) { $gdInfo = gd_info(); $gdVersion = $gdInfo['GD Version']; } else { ob_start(); @phpinfo(INFO_MODULES); $output = ob_get_contents(); ob_end_clean(); $matches[1] = ''; if ($output !== '') { if (preg_match("/GD Version[ \t](<[^>]+>[ \t])+([^<>]+)/s", $output, $matches)) { $gdVersion = $matches[2]; } else { return $gd; } } } if (function_exists('imagecreatetruecolor') && function_exists('imagecreatefromjpeg')) { $gdVersion = isset($gdVersion) ? $gdVersion : 2; $gd['gd2'] = "GD: " . $gdVersion; } elseif (function_exists('imagecreatefromjpeg')) { $gdVersion = isset($gdVersion) ? $gdVersion : 1; $gd['gd1'] = "GD: " . $gdVersion; } return $gd; } /* * Test if Imagemagick is installed on the server * * @return array / protected static function testImagemagick() { if (function_exists('NewMagickWand')) { $im['IM'] = 'Magick wand'; } else { $status = ''; $output = array(); @exec('convert -version', $output, $status); $im = array(); if (!$status && class_exists('Imagick')) { if (preg_match("/imagemagick[ \t]+([0-9\.]+)/i", $output[0], $matches)) { $im['IM'] = $matches[0]; } } unset($output, $status); } return $im; } } /* * 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 Fabimage { /* * 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: return false; } } /* * 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) { /* * $$$ @FIXME we may need to find something other than file_get_contents($src) * to use for this, as it requires allow_url_fopen to be enabled in PHP to fetch a URL, * which a lot of shared hosts don't allow. * * -Rob - well JFile::read is deprecated and in the code it says to use file_get_contents * The Joomla updater won't work with out file_get_contents so I think we should make it a requirement * Wiki updated here - http://fabrikar.com/forums/index.php?wiki/prerequisites/ * * hugh - Okie Dokie. / /* * $$$ @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 (!JFolder::exists($folder)) { JFolder::create($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 $res = false; // Check for cached version if (JFile::exists($cacheFile)) { // Check its age- Google T&C allow you to store for no more than 30 days. $createDate = JFactory::getDate(filemtime($cacheFile)); $now = JFactory::getDate(); $interval = $now->diff($createDate); $daysOld = (float) $interval->format('%R%a'); if ($daysOld < -$lifeTime) { // Remove out of date JFile::delete($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) { $pos = JString::strpos($value, '/'); if ($pos === false) { return sprintf($format, $value); } else { $bits = explode('/', $value, 2); $base = FArrayHelper::getValue($bits, 0); $divider = FArrayHelper::getValue($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); } } /** * GD image manipulation class * * @package Joomla * @subpackage Fabrik.helpers * @copyright Copyright (C) 2005-2016 Media A-Team, Inc. - All rights reserved. * @license GNU/GPL http://www.gnu.org/copyleft/gpl.html * @since 1.0 / class FabimageGD extends Fabimage { /* * Create an image object from a file path * * @param string $file file to create image from * * @throws Exception * * @return array (image, header string) / public function imageFromFile($file) { $img = false; $ext = JString::strtolower(end(explode('.', $file))); if ($ext == 'jpg' \|\| $ext == 'jpeg') { $img = @imagecreatefromjpeg($file); $header = "image/jpeg"; } elseif ($ext == 'png') { $img = @imagecreatefrompng($file); $header = "image/png"; // Only if your version of GD includes GIF support } elseif ($ext == 'gif') { if (function_exists('imagecreatefromgif')) { $img = @imagecreatefromgif($file); $header = "image/gif"; } else { throw new Exception("imagecreate from gif not available"); } } return array($img, $header); } /* * Create a gd image from a file * * @param string $source path to file * * @return image / protected function imageCreateFrom($source) { $ext = JString::strtolower(JFile::getExt($source)); switch ($ext) { case 'jpg': case 'jpeg': $source = imagecreatefromjpeg($source); break; case 'png': $source = imagecreatefrompng($source); break; case 'gif': $source = imagecreatefromgif($source); break; } return $source; } /* * Convert an image object into a file * * @param string $destCropFile file path * @param object $image image object to save * * @return bool True on success / public function imageToFile($destCropFile, $image) { $ext = JString::strtolower(JFile::getExt($destCropFile)); ob_start(); switch ($ext) { case 'jpg': case 'jpeg': $source = imagejpeg($image, null, 100); break; case 'png': $source = imagepng($image, null); break; case 'gif': $source = imagegif($image, null); break; } $image_p = ob_get_contents(); ob_end_clean(); return JFile::write($destCropFile, $image_p); } /* * Rotate an image * * @param string $source filepath * @param string $dest output path, if empty defaults to source * @param int $degrees number of degrees to rotate * * @return array (image object, rotated images width, rotated images height) / public function rotate($source, $dest = '', $degrees = 0) { if (empty($dest)) { $dest = $source; } $source = $this->imageCreateFrom($source); $app = JFactory::getApplication(); // Rotates the image $rotate = imagerotate($source, $degrees, 0); if ($rotate === false) { $app->enqueueMessage('Image rotation failed', 'notice'); } $this->imageToFile($dest, $rotate); list($width, $height) = getimagesize($dest); return array($rotate, $width, $height); } / * Check for EXIF orientation data, and rotate image accordingly * * @param string path to image file / public function rotateImageFromExif($src, $dest) { if (function_exists('exif_read_data')) { $exif = exif_read_data($src); if ($exif && isset($exif['Orientation'])) { $orientation = $exif['Orientation']; if ($orientation != 1) { $deg = 0; switch ($orientation) { case 3: $deg = 180; break; case 6: $deg = 270; break; case 8: $deg = 90; break; } if ($deg) { self::rotate($src, $dest, $deg); } } } } } /* * Scale an image * * @param string $file file to scale * @param string $dest save location * @param int $percentage scale percentage * @param int $destX start scale from x coord * @param int $destY start scale from y coord * * @return object image / public function scale($file, $dest = '', $percentage = 100, $destX = 0, $destY = 0) { list($image, $header) = $this->imageFromFile($file); jimport('joomla.filesystem.file'); list($width, $height) = getimagesize($file); $new_width = $width ((float) $percentage / 100); $new_height = $height * ((float) $percentage / 100); $image_p = imagecreatetruecolor($new_width, $new_height); imagecopyresampled($image_p, $image, $destX, $destY, 0, 0, $new_width, $new_height, $width, $height); if ($dest != '') { $this->imageToFile($dest, $image_p); } return $image_p; } /** * 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 $quality Percentage image save quality 100 = no compression, 0 = max compression * * @throws Error * * @return object image / public function resize($maxWidth, $maxHeight, $origFile, $destFile, $quality = 100) { // Check if the file exists if (!$this->storage->exists($origFile)) { throw new RuntimeException("Fabrik: no file found for $origFile"); } // Load image list($img, $header) = $this->imageFromFile($origFile); if (!$img) { return $img; } $ext = JString::strtolower(end(explode('.', $origFile))); // If an image was successfully loaded, test the image for size if ($img) { // Handle image transparency for original image if (function_exists('imagealphablending')) { imagealphablending($img, false); imagesavealpha($img, true); } // Get image size and scale ratio $width = imagesx($img); $height = imagesy($img); $scale = min($maxWidth / $width, $maxHeight / $height); // If the image is larger than the max shrink it if ($scale < 1) { $new_width = floor($scale $width); $new_height = floor($scale * $height); // Create a new temporary image $tmp_img = imagecreatetruecolor($new_width, $new_height); // Handle image transparency for resized image if (function_exists('imagealphablending')) { imagealphablending($tmp_img, false); imagesavealpha($tmp_img, true); } // Copy and resize old image into new image imagecopyresampled($tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height); imagedestroy($img); $img = $tmp_img; } } // Create error image if necessary if (!$img) { throw new Error("resize: no image created for $origFile, extension = $ext, destination = $destFile"); } // Save the file $this->writeImg($img, $destFile, $header, $quality); $this->thumbPath = $destFile; } /** * Crop an image to specific dimensions * * @param string $origFile path to image to crop from * @param string $destFile path to cropped file * @param int $srcX x coord on $origFile to start crop from * @param int $srcY y coord on $origFile to start crop from * @param int $dstW cropped image width * @param int $dstH cropped image height * @param int $dstX destination x coord of destination point * @param int $dstY destination y coord of destination point * @param string $bg hex background colour * * @return void / public function crop($origFile, $destFile, $srcX, $srcY, $dstW, $dstH, $dstX = 0, $dstY = 0, $bg = '#FFFFFF') { // Convert hex to rgb colours. list($r, $g, $b) = sscanf($bg, '#%2x%2x%2x'); list($origImg, $header) = $this->imageFromFile($origFile); $destImg = imagecreatetruecolor($dstW, $dstH); $bg = imagecolorallocate($destImg, $r, $g, $b); // Draw a bg rectangle imagefilledrectangle($destImg, 0, 0, (int) $dstW, (int) $dstH, $bg); $this->writeImg($destImg, $destFile, $header); $srcW = imagesx($destImg); $srcH = imagesy($destImg); $origW = imagesx($origImg); $origH = imagesy($origImg); // If the orig image is smaller than the destination then increase its canvas and fill it with the bg if ($origW < $srcW \|\| $origH < $srcH) { $srcBg = imagecreatetruecolor($srcW, $srcH); imagefilledrectangle($srcBg, 0, 0, (int) $srcW, (int) $srcH, $bg); imagecopyresampled($srcBg, $origImg, 0, 0, 0, 0, $origW, $origH, $origW, $origH); $origImg = $srcBg; } imagecopyresampled($destImg, $origImg, $dstX, $dstY, $srcX, $srcY, $dstW, $dstH, $srcW, $srcH); $this->writeImg($destImg, $destFile, $header); } /* * Write an image to the server * * @param object $img image object * @param string $destFile file path to save to * @param string $header image type * @param int $quality Percentage image save quality 100 = no compression, 0 = max compression * * @throws Error * * @return void / public function writeImg($img, $destFile, $header, $quality = 100) { if ($quality < 0) { $quality = 0; } if ($quality > 100) { $quality = 100; } if ($header == "image/jpeg") { ob_start(); imagejpeg($img, null, $quality); $image = ob_get_contents(); ob_end_clean(); $this->storage->write($destFile, $image); } else { if ($header == "image/png") { $quality = round((100 - $quality) 9 / 100); ob_start(); imagepng($img, null, $quality); $image = ob_get_contents(); ob_end_clean(); $this->storage->write($destFile, $image); } else { if (function_exists("imagegif")) { ob_start(); imagegif($img, null, $quality); $image = ob_get_contents(); ob_end_clean(); $this->storage->write($destFile, $image); } else { throw new Error('trying to save a gif by imagegif support not present in the GD library'); } } } } } /** * GD2 image manipulation class * * @package Joomla * @subpackage Fabrik.helpers * @copyright Copyright (C) 2005-2016 Media A-Team, Inc. - All rights reserved. * @license GNU/GPL http://www.gnu.org/copyleft/gpl.html * @since 1.0 / class FabimageGD2 extends FabimageGD { /* * 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) { $app = JFactory::getApplication(); // Check if the file exists if (!$this->storage->exists($origFile)) { throw new RuntimeException("no file found for $origFile"); } // Load image $img = null; $ext = $this->getImgType($origFile); if (!$ext) { return; } ini_set('display_errors', true); $memory = ini_get('memory_limit'); $intMemory = FabrikString::rtrimword($memory, 'M'); if ($intMemory < 50) { ini_set('memory_limit', '50M'); } if ($ext == 'jpg' \|\| $ext == 'jpeg') { $img = imagecreatefromjpeg($origFile); $header = "image/jpeg"; } elseif ($ext == 'png') { $img = imagecreatefrompng($origFile); $header = "image/png"; // Only if your version of GD includes GIF support } elseif ($ext == 'gif') { if (function_exists('imagecreatefromgif')) { $img = imagecreatefromgif($origFile); $header = "image/gif"; } else { $app->enqueueMessage("imagecreate from gif not available"); } } // If an image was successfully loaded, test the image for size if ($img) { // Handle image transparency for original image if (function_exists('imagealphablending')) { imagealphablending($img, false); imagesavealpha($img, true); } // Get image size and scale ratio $width = imagesx($img); $height = imagesy($img); $scale = min($maxWidth / $width, $maxHeight / $height); // If the image is larger than the max shrink it if ($scale < 1) { $new_width = floor($scale $width); $new_height = floor($scale * $height); // Create a new temporary image $tmp_img = imagecreatetruecolor($new_width, $new_height); // handle transparency for tmp image if (function_exists('imagealphablending')) { imagealphablending($tmp_img, false); imagesavealpha($tmp_img, true); } // Copy and resize old image into new image imagecopyresampled($tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height); imagedestroy($img); $img = $tmp_img; } } if (!$img) { $app->enqueueMessage("no image created for $origFile, extension = $ext , destination = $destFile "); } /* save the file * write them out to output buffer first so that we can use JFile to write them to the server (potential using J ftp layer) / if ($header == "image/jpeg") { ob_start(); imagejpeg($img, null, $quality); $image = ob_get_contents(); ob_end_clean(); $this->storage->write($destFile, $image); } else { if ($header == "image/png") { ob_start(); $quality = round((100 - $quality) 9 / 100); imagepng($img, null, $quality); $image = ob_get_contents(); ob_end_clean(); $this->storage->write($destFile, $image); } else { if (function_exists("imagegif")) { ob_start(); imagegif($img, null, $quality); $image = ob_get_contents(); ob_end_clean(); $this->storage->write($destFile, $image); } else { $app->enqueueMessage("GD gif support not available: could not resize image"); } } } $this->thumbPath = $destFile; ini_set('memory_limit', $memory); } } /** * Image magic image manipulation class * * @package Joomla * @subpackage Fabrik.helpers * @copyright Copyright (C) 2005-2016 Media A-Team, Inc. - All rights reserved. * @license GNU/GPL http://www.gnu.org/copyleft/gpl.html * @since 1.0 / class FabimageIM extends Fabimage { /* * 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) { $ext = $this->getImgType($origFile); if (!$ext) { // False so not an image type so cant resize // $$$ hugh - testing making thumbs for PDF's, so need a little tweak here $origInfo = pathinfo($origFile); if (JString::strtolower($origInfo['extension']) != 'pdf') { return; } } ini_set('display_errors', true); // See if the imagick image lib is installed if (class_exists('Imagick')) { / $$$ hugh - having a go at handling PDF thumbnails, which should work as long as the server * has ghostscript (GS) installed. Don't have a generic test for GS being available, so * it'll just fail if no GS. / $origInfo = pathinfo($origFile); if (JString::strtolower($origInfo['extension']) == 'pdf') { $pdfThumbType = 'png'; // OK, it's a PDF, so first we need to add the page number we want to the source filename $pdfFile = $origFile . '[0]'; if (is_callable('exec')) { $destFile = str_replace('.pdf', '.png', $destFile); // Output File $convert = "convert " . $pdfFile . " -colorspace RGB -resize " . $maxWidth . " " . $destFile; // Command creating exec($convert); // Execution of complete command. } else { // Now just load it, set format, resize, save and garbage collect. // Hopefully IM will call the right delegate (ghostscript) to load the PDF. $im = new Imagick($pdfFile); $im->setImageFormat($pdfThumbType); $im->thumbnailImage($maxWidth, $maxHeight, true); $im->writeImage($destFile); // as destroy() is deprecated $im->clear(); } } else { $im = new Imagick; / Read the image file / $im->readImage($origFile); / Thumbnail the image ( width 100, preserve dimensions ) / $im->thumbnailImage($maxWidth, $maxHeight, true); / Write the thumbnail to disk / $im->writeImage($destFile); / Free resources associated to the Imagick object */ $im->destroy(); } $this->thumbPath = $destFile; } else { $resource = NewMagickWand(); if (!MagickReadImage($resource, $origFile)) { echo "ERROR!"; print_r(MagickGetException($resource)); } $resource = MagickTransformImage($resource, '0x0', $maxWidth . 'x' . $maxWidth); $this->thumbPath = $destFile; MagickWriteImage($resource, $destFile); } } }

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