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wp-content/plugins/shortpixel-image-optimiser/build/shortpixel/PackageLoader.php

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+<?php
+namespace ShortPixel\Build;
+
+class PackageLoader
+{
+  public $dir;
+  public $composerFile  = false;
+
+  public function __construct()
+  {
+
+  }
+
+  public function setComposerFile($filePath)
+  {
+    $this->composerFile = json_decode(file_get_contents($filePath),1);
+  }
+
+  public function getComposerFile($filePath = false )
+  {
+    if (! $this->composerFile)
+      $this->composerFile = json_decode(file_get_contents($this->dir."/composer.json"), 1);
+
+      return $this->composerFile;
+  }
+
+    public function load($dir)
+    {
+        $this->dir = $dir;
+        $composer = $this->getComposerFile();
+
+
+        if(isset($composer["autoload"]["psr-4"])){
+            $this->loadPSR4($composer['autoload']['psr-4']);
+        }
+        if(isset($composer["autoload"]["psr-0"])){
+            $this->loadPSR0($composer['autoload']['psr-0']);
+        }
+        if(isset($composer["autoload"]["files"])){
+            $this->loadFiles($composer["autoload"]["files"]);
+        }
+    }
+
+    public function loadFiles($files){
+        foreach($files as $file){
+            $fullpath = $this->dir."/".$file;
+            if(file_exists($fullpath)){
+                include_once($fullpath);
+            }
+        }
+    }
+
+    public function loadPSR4($namespaces)
+    {
+        $this->loadPSR($namespaces, true);
+    }
+
+    public function loadPSR0($namespaces)
+    {
+        $this->loadPSR($namespaces, false);
+    }
+
+    public function loadPSR($namespaces, $psr4)
+    {
+        $dir = $this->dir;
+        // Foreach namespace specified in the composer, load the given classes
+        foreach ($namespaces as $namespace => $classpaths) {
+            if (!is_array($classpaths)) {
+                $classpaths = array($classpaths);
+            }
+            spl_autoload_register(function ($classname) use ($namespace, $classpaths, $dir, $psr4) {
+                // Check if the namespace matches the class we are looking for
+                if (preg_match("#^".preg_quote($namespace)."#", $classname)) {
+                    // Remove the namespace from the file path since it's psr4
+                    if ($psr4) {
+                        $classname = str_replace($namespace, "", $classname);
+                    }
+
+                    //  $filename = preg_replace("#\\\\#", "", $classname).".php";
+                    // This is fix for nested classes which were losing a /
+                    $filename = ltrim($classname .'.php', '\\');
+                    $filename = str_replace('\\','/', $filename);
+
+                    foreach ($classpaths as $classpath) {
+                      $fullpath = trailingslashit($dir) . trailingslashit($classpath) .$filename;
+                        if (file_exists($fullpath)) {
+                            include_once $fullpath;
+                        }
+                    }
+                }
+            });
+        }
+    }
+}