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vendor/spatie/laravel-permission/src/WildcardPermission.php

@@ -0,0 +1,124 @@
+<?php
+
+namespace Spatie\Permission;
+
+use Illuminate\Support\Collection;
+use Spatie\Permission\Exceptions\WildcardPermissionNotProperlyFormatted;
+
+class WildcardPermission
+{
+    /** @var string */
+    const WILDCARD_TOKEN = '*';
+
+    /** @var string */
+    const PART_DELIMITER = '.';
+
+    /** @var string */
+    const SUBPART_DELIMITER = ',';
+
+    /** @var string */
+    protected $permission;
+
+    /** @var Collection */
+    protected $parts;
+
+    /**
+     * @param string $permission
+     */
+    public function __construct(string $permission)
+    {
+        $this->permission = $permission;
+        $this->parts = collect();
+
+        $this->setParts();
+    }
+
+    /**
+     * @param string|WildcardPermission $permission
+     *
+     * @return bool
+     */
+    public function implies($permission): bool
+    {
+        if (is_string($permission)) {
+            $permission = new self($permission);
+        }
+
+        $otherParts = $permission->getParts();
+
+        $i = 0;
+        foreach ($otherParts as $otherPart) {
+            if ($this->getParts()->count() - 1 < $i) {
+                return true;
+            }
+
+            if (! $this->parts->get($i)->contains(self::WILDCARD_TOKEN)
+                && ! $this->containsAll($this->parts->get($i), $otherPart)) {
+                return false;
+            }
+
+            $i++;
+        }
+
+        for ($i; $i < $this->parts->count(); $i++) {
+            if (! $this->parts->get($i)->contains(self::WILDCARD_TOKEN)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @param Collection $part
+     * @param Collection $otherPart
+     *
+     * @return bool
+     */
+    protected function containsAll(Collection $part, Collection $otherPart): bool
+    {
+        foreach ($otherPart->toArray() as $item) {
+            if (! $part->contains($item)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @return Collection
+     */
+    public function getParts(): Collection
+    {
+        return $this->parts;
+    }
+
+    /**
+     * Sets the different parts and subparts from permission string.
+     *
+     * @return void
+     */
+    protected function setParts(): void
+    {
+        if (empty($this->permission) || $this->permission == null) {
+            throw WildcardPermissionNotProperlyFormatted::create($this->permission);
+        }
+
+        $parts = collect(explode(self::PART_DELIMITER, $this->permission));
+
+        $parts->each(function ($item, $key) {
+            $subParts = collect(explode(self::SUBPART_DELIMITER, $item));
+
+            if ($subParts->isEmpty() || $subParts->contains('')) {
+                throw WildcardPermissionNotProperlyFormatted::create($this->permission);
+            }
+
+            $this->parts->add($subParts);
+        });
+
+        if ($this->parts->isEmpty()) {
+            throw WildcardPermissionNotProperlyFormatted::create($this->permission);
+        }
+    }
+}