From 0b02a6d123b2014705998c94ddf3d460948d3eac Mon Sep 17 00:00:00 2001
From: redmatrix <git@macgirvin.com>
Date: Tue, 10 May 2016 17:26:44 -0700
Subject: initial sabre upgrade (needs lots of work - to wit: authentication,
 redo the browser interface, and rework event export/import)

---
 .../dav/lib/DAVACL/Xml/Property/Principal.php      | 196 +++++++++++++++++++++
 1 file changed, 196 insertions(+)
 create mode 100644 vendor/sabre/dav/lib/DAVACL/Xml/Property/Principal.php

(limited to 'vendor/sabre/dav/lib/DAVACL/Xml/Property/Principal.php')

diff --git a/vendor/sabre/dav/lib/DAVACL/Xml/Property/Principal.php b/vendor/sabre/dav/lib/DAVACL/Xml/Property/Principal.php
new file mode 100644
index 000000000..d32249d8b
--- /dev/null
+++ b/vendor/sabre/dav/lib/DAVACL/Xml/Property/Principal.php
@@ -0,0 +1,196 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * Principal property
+ *
+ * The principal property represents a principal from RFC3744 (ACL).
+ * The property can be used to specify a principal or pseudo principals.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Principal extends DAV\Xml\Property\Href {
+
+    /**
+     * To specify a not-logged-in user, use the UNAUTHENTICATED principal
+     */
+    const UNAUTHENTICATED = 1;
+
+    /**
+     * To specify any principal that is logged in, use AUTHENTICATED
+     */
+    const AUTHENTICATED = 2;
+
+    /**
+     * Specific principals can be specified with the HREF
+     */
+    const HREF = 3;
+
+    /**
+     * Everybody, basically
+     */
+    const ALL = 4;
+
+    /**
+     * Principal-type
+     *
+     * Must be one of the UNAUTHENTICATED, AUTHENTICATED or HREF constants.
+     *
+     * @var int
+     */
+    protected $type;
+
+    /**
+     * Creates the property.
+     *
+     * The 'type' argument must be one of the type constants defined in this class.
+     *
+     * 'href' is only required for the HREF type.
+     *
+     * @param int $type
+     * @param string|null $href
+     */
+    function __construct($type, $href = null) {
+
+        $this->type = $type;
+        if ($type === self::HREF && is_null($href)) {
+            throw new DAV\Exception('The href argument must be specified for the HREF principal type.');
+        }
+        if ($href) {
+            $href = rtrim($href, '/') . '/';
+            parent::__construct($href);
+        }
+
+    }
+
+    /**
+     * Returns the principal type
+     *
+     * @return int
+     */
+    function getType() {
+
+        return $this->type;
+
+    }
+
+
+    /**
+     * The xmlSerialize metod is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializble should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        switch ($this->type) {
+
+            case self::UNAUTHENTICATED :
+                $writer->writeElement('{DAV:}unauthenticated');
+                break;
+            case self::AUTHENTICATED :
+                $writer->writeElement('{DAV:}authenticated');
+                break;
+            case self::HREF :
+                parent::xmlSerialize($writer);
+                break;
+            case self::ALL :
+                $writer->writeElement('{DAV:}all');
+                break;
+        }
+
+    }
+
+    /**
+     * Generate html representation for this value.
+     *
+     * The html output is 100% trusted, and no effort is being made to sanitize
+     * it. It's up to the implementor to sanitize user provided values.
+     *
+     * The output must be in UTF-8.
+     *
+     * The baseUri parameter is a url to the root of the application, and can
+     * be used to construct local links.
+     *
+     * @param HtmlOutputHelper $html
+     * @return string
+     */
+    function toHtml(HtmlOutputHelper $html) {
+
+        switch ($this->type) {
+
+            case self::UNAUTHENTICATED :
+                return '<em>unauthenticated</em>';
+            case self::AUTHENTICATED :
+                return '<em>authenticated</em>';
+            case self::HREF :
+                return parent::toHtml($html);
+            case self::ALL :
+                return '<em>all</em>';
+        }
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called staticly, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $tree = $reader->parseInnerTree()[0];
+
+        switch ($tree['name']) {
+            case '{DAV:}unauthenticated' :
+                return new self(self::UNAUTHENTICATED);
+            case '{DAV:}authenticated' :
+                return new self(self::AUTHENTICATED);
+            case '{DAV:}href':
+                return new self(self::HREF, $tree['value']);
+            case '{DAV:}all':
+                return new self(self::ALL);
+            default :
+                throw new BadRequest('Unknown or unsupported principal type: ' . $tree['name']);
+        }
+
+    }
+
+}
-- 
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