- /**
- * Return the facebook image
- *
- * @desc Generate image in jpeg format or load it from cache
- *
- * @param string $pathInfo The request path info
- * @param array $parameters The image parameters
- * @return array The image array
- */
- protected function getFacebookImage(string $pathInfo, array $parameters = []): array {
- //Get asset package
- //XXX: require asset package to be public
- $package = $this->container->get('rapsys_pack.path_package');
-
- //Set texts
- $texts = $parameters['texts'] ?? [];
-
- //Set default source
- $source = $parameters['source'] ?? 'png/facebook.png';
-
- //Set default source
- $updated = $parameters['updated'] ?? strtotime('last week');
-
- //Set source path
- $src = $this->config['path']['public'].'/'.$source;
-
- //Set cache path
- //XXX: remove extension and store as png anyway
- $cache = $this->config['path']['cache'].'/facebook/'.substr($source, 0, strrpos($source, '.')).'.'.$this->config['facebook']['width'].'x'.$this->config['facebook']['height'].'.png';
-
- //Set destination path
- //XXX: format <public>/facebook<pathinfo>.jpeg
- //XXX: was <public>/facebook/<controller>/<action>.<locale>.jpeg
- $dest = $this->config['path']['public'].'/facebook'.$pathInfo.'.jpeg';
-
- //With up to date generated image
- if (
- is_file($dest) &&
- ($stat = stat($dest)) &&
- $stat['mtime'] >= $updated
- ) {
- //Get image size
- list ($width, $height) = getimagesize($dest);
-
- //Iterate each text
- foreach($texts as $text => $data) {
- //With canonical text
- if (!empty($data['canonical'])) {
- //Prevent canonical to finish in alt
- unset($texts[$text]);
- }
- }
-
- //Return image data
- return [
- 'og:image' => $package->getAbsoluteUrl('@RapsysAir/facebook/'.$stat['mtime'].$pathInfo.'.jpeg'),
- 'og:image:alt' => str_replace("\n", ' ', implode(' - ', array_keys($texts))),
- 'og:image:height' => $height,
- 'og:image:width' => $width
- ];
- //With image candidate
- } elseif (is_file($src)) {
- //Create image object
- $image = new \Imagick();
-
- //With cache image
- if (is_file($cache)) {
- //Read image
- $image->readImage($cache);
- //Without we generate it
- } else {
- //Check target directory
- if (!is_dir($dir = dirname($cache))) {
- //Create filesystem object
- $filesystem = new Filesystem();
-
- try {
- //Create dir
- //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
- $filesystem->mkdir($dir, 0775);
- } catch (IOExceptionInterface $e) {
- //Throw error
- throw new \Exception(sprintf('Output directory "%s" do not exists and unable to create it', $dir), 0, $e);
- }
- }
-
- //Read image
- $image->readImage($src);
-
- //Crop using aspect ratio
- //XXX: for better result upload image directly in aspect ratio :)
- $image->cropThumbnailImage($this->config['facebook']['width'], $this->config['facebook']['height']);
-
- //Strip image exif data and properties
- $image->stripImage();
-
- //Save cache image
- if (!$image->writeImage($cache)) {
- //Throw error
- throw new \Exception(sprintf('Unable to write image "%s"', $cache));
- }
- }
- //Check target directory
- if (!is_dir($dir = dirname($dest))) {
- //Create filesystem object
- $filesystem = new Filesystem();
-
- try {
- //Create dir
- //XXX: set as 0775, symfony umask (0022) will reduce rights (0755)
- $filesystem->mkdir($dir, 0775);
- } catch (IOExceptionInterface $e) {
- //Throw error
- throw new \Exception(sprintf('Output directory "%s" do not exists and unable to create it', $dir), 0, $e);
- }
- }
-
- //Get image width
- $width = $image->getImageWidth();
-
- //Get image height
- $height = $image->getImageHeight();
-
- //Create draw
- $draw = new \ImagickDraw();
-
- //Set stroke antialias
- $draw->setStrokeAntialias(true);
-
- //Set text antialias
- $draw->setTextAntialias(true);
-
- //Set font aliases
- $fonts = [
- 'irishgrover' => $this->config['path']['public'].'/ttf/irishgrover.v10.ttf',
- 'droidsans' => $this->config['path']['public'].'/ttf/droidsans.regular.ttf',
- 'dejavusans' => $this->config['path']['public'].'/ttf/dejavusans.2.37.ttf',
- 'labelleaurore' => $this->config['path']['public'].'/ttf/labelleaurore.v10.ttf'
- ];
-
- //Set align aliases
- $aligns = [
- 'left' => \Imagick::ALIGN_LEFT,
- 'center' => \Imagick::ALIGN_CENTER,
- 'right' => \Imagick::ALIGN_RIGHT
- ];
-
- //Set default font
- $defaultFont = 'dejavusans';
-
- //Set default align
- $defaultAlign = 'center';
-
- //Set default size
- $defaultSize = 60;
-
- //Set default stroke
- $defaultStroke = '#00c3f9';
-
- //Set default width
- $defaultWidth = 15;
-
- //Set default fill
- $defaultFill = 'white';
-
- //Init counter
- $i = 1;
-
- //Set text count
- $count = count($texts);
-
- //Draw each text stroke
- foreach($texts as $text => $data) {
- //Set font
- $draw->setFont($fonts[$data['font']??$defaultFont]);
-
- //Set font size
- $draw->setFontSize($data['size']??$defaultSize);
-
- //Set stroke width
- $draw->setStrokeWidth($data['width']??$defaultWidth);
-
- //Set text alignment
- $draw->setTextAlignment($align = ($aligns[$data['align']??$defaultAlign]));
-
- //Get font metrics
- $metrics = $image->queryFontMetrics($draw, $text);
-
- //Without y
- if (empty($data['y'])) {
- //Position verticaly each text evenly
- $texts[$text]['y'] = $data['y'] = (($height + 100) / (count($texts) + 1) * $i) - 50;
- }
-
- //Without x
- if (empty($data['x'])) {
- if ($align == \Imagick::ALIGN_CENTER) {
- $texts[$text]['x'] = $data['x'] = $width/2;
- } elseif ($align == \Imagick::ALIGN_LEFT) {
- $texts[$text]['x'] = $data['x'] = 50;
- } elseif ($align == \Imagick::ALIGN_RIGHT) {
- $texts[$text]['x'] = $data['x'] = $width - 50;
- }
- }
-
- //Center verticaly
- //XXX: add ascender part then center it back by half of textHeight
- //TODO: maybe add a boundingbox ???
- $texts[$text]['y'] = $data['y'] += $metrics['ascender'] - $metrics['textHeight']/2;
-
- //Set stroke color
- $draw->setStrokeColor(new \ImagickPixel($data['stroke']??$defaultStroke));
-
- //Set fill color
- $draw->setFillColor(new \ImagickPixel($data['stroke']??$defaultStroke));
-
- //Add annotation
- $draw->annotation($data['x'], $data['y'], $text);
-
- //Increase counter
- $i++;
- }
-
- //Create stroke object
- $stroke = new \Imagick();
-
- //Add new image
- $stroke->newImage($width, $height, new \ImagickPixel('transparent'));
-
- //Draw on image
- $stroke->drawImage($draw);
-
- //Blur image
- //XXX: blur the stroke canvas only
- $stroke->blurImage(5,3);
-
- //Set opacity to 0.5
- //XXX: see https://www.php.net/manual/en/image.evaluateimage.php
- $stroke->evaluateImage(\Imagick::EVALUATE_DIVIDE, 1.5, \Imagick::CHANNEL_ALPHA);
-
- //Compose image
- $image->compositeImage($stroke, \Imagick::COMPOSITE_OVER, 0, 0);
-
- //Clear stroke
- $stroke->clear();
-
- //Destroy stroke
- unset($stroke);
-
- //Clear draw
- $draw->clear();
-
- //Set text antialias
- $draw->setTextAntialias(true);
-
- //Draw each text
- foreach($texts as $text => $data) {
- //Set font
- $draw->setFont($fonts[$data['font']??$defaultFont]);
-
- //Set font size
- $draw->setFontSize($data['size']??$defaultSize);
-
- //Set text alignment
- $draw->setTextAlignment($aligns[$data['align']??$defaultAlign]);
-
- //Set fill color
- $draw->setFillColor(new \ImagickPixel($data['fill']??$defaultFill));
-
- //Add annotation
- $draw->annotation($data['x'], $data['y'], $text);
-
- //With canonical text
- if (!empty($data['canonical'])) {
- //Prevent canonical to finish in alt
- unset($texts[$text]);
- }
- }
-
- //Draw on image
- $image->drawImage($draw);
-
- //Strip image exif data and properties
- $image->stripImage();
-
- //Set image format
- $image->setImageFormat('jpeg');
-
- //Save image
- if (!$image->writeImage($dest)) {
- //Throw error
- throw new \Exception(sprintf('Unable to write image "%s"', $dest));
- }
-
- //Get dest stat
- $stat = stat($dest);
-
- //Return image data
- return [
- 'og:image' => $package->getAbsoluteUrl('@RapsysAir/facebook/'.$stat['mtime'].$pathInfo.'.jpeg'),
- 'og:image:alt' => str_replace("\n", ' ', implode(' - ', array_keys($texts))),
- 'og:image:height' => $height,
- 'og:image:width' => $width
- ];
- }
-
- //Return empty array without image
- return [];
- }
-
Rapsys Git / airbundle / commitdiff