freaCMS/app/modules/ceimage.php

<?php

namespace Modules;

class CEimage
{
    public $r;
    public $b;
    public $structs;
    public $content;
    public $domains;
    
    function __construct($request,$body=[],$structs=false,$content=false,$domains=false) {
        $this->r = $request;
        $this->b = $body;
        $this->structs = &$structs;
        $this->content = &$content;
        $this->domains = &$domains;
    }
    
    function is_width($string) {
        $pattern="/^[0-9]+%$/";
        if (preg_match($pattern,$string)) {
            return true;
        } else {
            return false;
        }
    }
    function index() {
        $md = new \freaParsedown();
        $request = $this->r;
        $body = $this->b;
        $key=$request[1];
        $image="";
        $width=null;
        $format=false;
        $new="";
        
        // see if we can find image
        if ( is_file($request[1])) {
            $image= $request[1];
        } else if ($this->structs) {
            foreach($this->structs as $domain=>$destination) {
                if(array_key_exists($key, $this->structs[$domain]['pic'])) {
                    $image = $this->structs[$domain]['pic'][$key];
                    unset($this->structs[$domain]['pic'][$key]);
                    unset($this->content[$this->domains[$domain]][$key]);
                    break;
                }
            }
        }

        // image positioning
        if (count($request) >= 3) {
            if( in_array($request[2],array('left','right','full','auto'))) {
                $class = $request[2];
            } else {
                $class = 'left';
            }
        } else {
            $class = 'left';
        }
        if (isset($request[3])) {
            if (self::is_width($request[3])) {
                $width=$request[3];
            } elseif (in_array($request[3], ['png','jpg','jpeg','nocache'])) {
                $format=$request[3];
            }
        }

        if ($image) {


            $gallery = "gallery";
            // image orientation?
            $img = new \Image($image);
//          $ratio = "landscape";
            $ratio = ($img->width() >= $img->height())
                   ? "landscape"
                   : "portrait"
                   ;
            unset($img);
            
            $cached = new CachedImage($image,$format);

            // identify if caption contains a copyright note
            // if so, indicate with a class
            foreach ($body as $k=>$line) {
                if (strpos($line,"©") !== FALSE
                    || strpos($line,"&copy;") !== FALSE) {
                    $body[$k] = sprintf("<span class=\"copyright\">%s</span>",$line);
                }
            }
                    
            $new=sprintf("<div class='content_element_image %s'>"
                         ."<div class=\"media %s\" %s><a href=\"%s\" class=\"$gallery\"><img src=\"%s\" alt=\"user supplied image\" /></a></div>"
                         ."<img src=\"%s\" style=\"display:none;\" alt=\"user supplied image\" />"
                         ."<div class=\"caption\">%s</div>"
                         ."</div>",
                         $class,
                         $ratio,
                         ($width ? "style=\"flex-basis:$width;\"" : ''),
                         $cached->get_src(1600),
                         $cached->get_src(1600),
                         $cached->get_src(1600),
                         $md->text(implode("\n",$body))
            );
            unset($cached);
        } else {
            // image not found
            $new=sprintf("<div class='content_element_image %s'>\n"
                         ."<div class=\"media %s\">\n"
                         ."<div class=\"caption\">\n%s\n</div>\n"
                         ."</div>\n",
                         $class,
                         "landscape",
                         $md->text(implode("\n",$body))
            );
        }
        
        return $new;
    }
}