-
- /**
- * Return the facebook image
- *
- * Generate simple image in jpeg format or load it from cache
- *
- * @TODO: move to a svg merging system ?
- *
- * @param string $path The request path info
- * @param array $texts The image texts
- * @param int $updated The updated timestamp
- * @param ?string $source The image source
- * @param ?int $height The height
- * @param ?int $width The width
- * @return array The image array
- */
- public function getImage(string $path, array $texts, int $updated, ?string $source = null, ?int $height = null, ?int $width = null): array {
- //Without source
- if ($source === null && $this->config['facebook']['source'] === null) {
- //Return empty image data
- return [];
- //Without local source
- } elseif ($source === null) {
- //Set local source
- $source = $this->config['facebook']['source'];
- }
-
- //Without width
- if ($width === null) {
- //Set width from config
- $width = $this->config['facebook']['width'];
- }
-
- //Without height
- if ($height === null) {
- //Set height from config
- $height = $this->config['facebook']['height'];
- }
-
- //Set path file
- $facebook = $this->config['cache'].'/'.$this->config['prefixes']['facebook'].$path.'.jpeg';
-
- //Without existing path
- if (!is_dir($dir = dirname($facebook))) {
- //Create filesystem object
- $filesystem = new Filesystem();
-
- try {
- //Create path
- //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 path "%s" do not exists and unable to create it', $dir), 0, $e);
- }
- }
-
- //With path file
- if (is_file($facebook) && ($mtime = stat($facebook)['mtime']) && $mtime >= $updated) {
- #XXX: we used to drop texts with $data['canonical'] === true !!!
-
- //Set short path
- $short = $this->slugger->short($path);
-
- //Set hash
- $hash = $this->slugger->serialize([$short, $height, $width]);
-
- //Return image data
- return [
- 'og:image' => $this->router->generate('rapsyspack_facebook', ['hash' => $hash, 'path' => $short, 'height' => $height, 'width' => $width, 'u' => $mtime], UrlGeneratorInterface::ABSOLUTE_URL),
- 'og:image:alt' => str_replace("\n", ' ', implode(' - ', array_keys($texts))),
- 'og:image:height' => $height,
- 'og:image:width' => $width
- ];
- }
-
- //Set cache path
- $cache = $this->config['cache'].'/'.$this->config['prefixes']['facebook'].$path.'.png';
-
- //Without cache path
- if (!is_dir($dir = dirname($cache))) {
- //Create filesystem object
- $filesystem = new Filesystem();
-
- try {
- //Create path
- //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);
- }
- }
-
- //Create image object
- $image = new \Imagick();
-
- //Without cache image
- if (!is_file($cache) || stat($cache)['mtime'] < stat($source)['mtime']) {
- //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, $e);
- }
- }
-
- //Without source
- if (!is_file($source)) {
- //Throw error
- throw new \Exception(sprintf('Source file "%s" do not exists', $source));
- }
-
- //Convert to absolute path
- $source = realpath($source);
-
- //Read image
- //XXX: Imagick::readImage only supports absolute path
- $image->readImage($source);
-
- //Crop using aspect ratio
- //XXX: for better result upload image directly in aspect ratio :)
- $image->cropThumbnailImage($width, $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));
- }
- //With cache
- } else {
- //Read image
- $image->readImage($cache);
- }
-
- //Create draw
- $draw = new \ImagickDraw();
-
- //Set stroke antialias
- $draw->setStrokeAntialias(true);
-
- //Set text antialias
- $draw->setTextAntialias(true);
-
- //Set align aliases
- $aligns = [
- 'left' => \Imagick::ALIGN_LEFT,
- 'center' => \Imagick::ALIGN_CENTER,
- 'right' => \Imagick::ALIGN_RIGHT
- ];
-
- //Init counter
- $i = 1;
-
- //Set text count
- $count = count($texts);
-
- //Draw each text stroke
- foreach($texts as $text => $data) {
- //Set font
- $draw->setFont($this->config['fonts'][$data['font']??$this->config['facebook']['font']]);
-
- //Set font size
- $draw->setFontSize($data['size']??$this->config['facebook']['size']);
-
- //Set stroke width
- $draw->setStrokeWidth($data['thickness']??$this->config['facebook']['thickness']);
-
- //Set text alignment
- $draw->setTextAlignment($align = ($aligns[$data['align']??$this->config['facebook']['align']]));
-
- //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['border']??$this->config['facebook']['border']));
-
- //Set fill color
- $draw->setFillColor(new \ImagickPixel($data['fill']??$this->config['facebook']['fill']));
-
- //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
- $draw->setFont($this->config['fonts'][$data['font']??$this->config['facebook']['font']]);
-
- //Set font size
- $draw->setFontSize($data['size']??$this->config['facebook']['size']);
-
- //Set text alignment
- $draw->setTextAlignment($aligns[$data['align']??$this->config['facebook']['align']]);
-
- //Set fill color
- $draw->setFillColor(new \ImagickPixel($data['fill']??$this->config['facebook']['fill']));
-
- //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');
-
- //Set progressive jpeg
- $image->setInterlaceScheme(\Imagick::INTERLACE_PLANE);
-
- //Save image
- if (!$image->writeImage($facebook)) {
- //Throw error
- throw new \Exception(sprintf('Unable to write image "%s"', $facebook));
- }
-
- //Set short path
- $short = $this->slugger->short($path);
-
- //Set hash
- $hash = $this->slugger->serialize([$short, $height, $width]);
-
- //Return image data
- return [
- 'og:image' => $this->router->generate('rapsyspack_facebook', ['hash' => $hash, 'path' => $short, 'height' => $height, 'width' => $width, 'u' => stat($facebook)['mtime']], UrlGeneratorInterface::ABSOLUTE_URL),
- 'og:image:alt' => str_replace("\n", ' ', implode(' - ', array_keys($texts))),
- 'og:image:height' => $height,
- 'og:image:width' => $width
- ];
- }
Rapsys Git / packbundle / commitdiff