initial sabre upgrade (needs lots of work - to wit: authentication, redo the browser interface, and rework event export/import)

1 files changed, 430 insertions, 0 deletions

diff --git a/vendor/sabre/dav/lib/CalDAV/CalendarHome.php b/vendor/sabre/dav/lib/CalDAV/CalendarHome.php
new file mode 100644
index 000000000..a53f829e2
--- /dev/null
+++ b/vendor/sabre/dav/lib/CalDAV/CalendarHome.php
@@ -0,0 +1,430 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\MkCol;
+use Sabre\DAVACL;
+use Sabre\HTTP\URLUtil;
+
+/**
+ * The CalendarHome represents a node that is usually in a users'
+ * calendar-homeset.
+ *
+ * It contains all the users' calendars, and can optionally contain a
+ * notifications collection, calendar subscriptions, a users' inbox, and a
+ * users' outbox.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CalendarHome implements DAV\IExtendedCollection, DAVACL\IACL {
+
+    /**
+     * CalDAV backend
+     *
+     * @var Sabre\CalDAV\Backend\BackendInterface
+     */
+    protected $caldavBackend;
+
+    /**
+     * Principal information
+     *
+     * @var array
+     */
+    protected $principalInfo;
+
+    /**
+     * Constructor
+     *
+     * @param Backend\BackendInterface $caldavBackend
+     * @param mixed $userUri
+     */
+    function __construct(Backend\BackendInterface $caldavBackend, $principalInfo) {
+
+        $this->caldavBackend = $caldavBackend;
+        $this->principalInfo = $principalInfo;
+
+    }
+
+    /**
+     * Returns the name of this object
+     *
+     * @return string
+     */
+    function getName() {
+
+        list(, $name) = URLUtil::splitPath($this->principalInfo['uri']);
+        return $name;
+
+    }
+
+    /**
+     * Updates the name of this object
+     *
+     * @param string $name
+     * @return void
+     */
+    function setName($name) {
+
+        throw new DAV\Exception\Forbidden();
+
+    }
+
+    /**
+     * Deletes this object
+     *
+     * @return void
+     */
+    function delete() {
+
+        throw new DAV\Exception\Forbidden();
+
+    }
+
+    /**
+     * Returns the last modification date
+     *
+     * @return int
+     */
+    function getLastModified() {
+
+        return null;
+
+    }
+
+    /**
+     * Creates a new file under this object.
+     *
+     * This is currently not allowed
+     *
+     * @param string $filename
+     * @param resource $data
+     * @return void
+     */
+    function createFile($filename, $data = null) {
+
+        throw new DAV\Exception\MethodNotAllowed('Creating new files in this collection is not supported');
+
+    }
+
+    /**
+     * Creates a new directory under this object.
+     *
+     * This is currently not allowed.
+     *
+     * @param string $filename
+     * @return void
+     */
+    function createDirectory($filename) {
+
+        throw new DAV\Exception\MethodNotAllowed('Creating new collections in this collection is not supported');
+
+    }
+
+    /**
+     * Returns a single calendar, by name
+     *
+     * @param string $name
+     * @return Calendar
+     */
+    function getChild($name) {
+
+        // Special nodes
+        if ($name === 'inbox' && $this->caldavBackend instanceof Backend\SchedulingSupport) {
+            return new Schedule\Inbox($this->caldavBackend, $this->principalInfo['uri']);
+        }
+        if ($name === 'outbox' && $this->caldavBackend instanceof Backend\SchedulingSupport) {
+            return new Schedule\Outbox($this->principalInfo['uri']);
+        }
+        if ($name === 'notifications' && $this->caldavBackend instanceof Backend\NotificationSupport) {
+            return new Notifications\Collection($this->caldavBackend, $this->principalInfo['uri']);
+        }
+
+        // Calendars
+        foreach ($this->caldavBackend->getCalendarsForUser($this->principalInfo['uri']) as $calendar) {
+            if ($calendar['uri'] === $name) {
+                if ($this->caldavBackend instanceof Backend\SharingSupport) {
+                    if (isset($calendar['{http://calendarserver.org/ns/}shared-url'])) {
+                        return new SharedCalendar($this->caldavBackend, $calendar);
+                    } else {
+                        return new ShareableCalendar($this->caldavBackend, $calendar);
+                    }
+                } else {
+                    return new Calendar($this->caldavBackend, $calendar);
+                }
+            }
+        }
+
+        if ($this->caldavBackend instanceof Backend\SubscriptionSupport) {
+            foreach ($this->caldavBackend->getSubscriptionsForUser($this->principalInfo['uri']) as $subscription) {
+                if ($subscription['uri'] === $name) {
+                    return new Subscriptions\Subscription($this->caldavBackend, $subscription);
+                }
+            }
+
+        }
+
+        throw new NotFound('Node with name \'' . $name . '\' could not be found');
+
+    }
+
+    /**
+     * Checks if a calendar exists.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function childExists($name) {
+
+        try {
+            return !!$this->getChild($name);
+        } catch (NotFound $e) {
+            return false;
+        }
+
+    }
+
+    /**
+     * Returns a list of calendars
+     *
+     * @return array
+     */
+    function getChildren() {
+
+        $calendars = $this->caldavBackend->getCalendarsForUser($this->principalInfo['uri']);
+        $objs = [];
+        foreach ($calendars as $calendar) {
+            if ($this->caldavBackend instanceof Backend\SharingSupport) {
+                if (isset($calendar['{http://calendarserver.org/ns/}shared-url'])) {
+                    $objs[] = new SharedCalendar($this->caldavBackend, $calendar);
+                } else {
+                    $objs[] = new ShareableCalendar($this->caldavBackend, $calendar);
+                }
+            } else {
+                $objs[] = new Calendar($this->caldavBackend, $calendar);
+            }
+        }
+
+        if ($this->caldavBackend instanceof Backend\SchedulingSupport) {
+            $objs[] = new Schedule\Inbox($this->caldavBackend, $this->principalInfo['uri']);
+            $objs[] = new Schedule\Outbox($this->principalInfo['uri']);
+        }
+
+        // We're adding a notifications node, if it's supported by the backend.
+        if ($this->caldavBackend instanceof Backend\NotificationSupport) {
+            $objs[] = new Notifications\Collection($this->caldavBackend, $this->principalInfo['uri']);
+        }
+
+        // If the backend supports subscriptions, we'll add those as well,
+        if ($this->caldavBackend instanceof Backend\SubscriptionSupport) {
+            foreach ($this->caldavBackend->getSubscriptionsForUser($this->principalInfo['uri']) as $subscription) {
+                $objs[] = new Subscriptions\Subscription($this->caldavBackend, $subscription);
+            }
+        }
+
+        return $objs;
+
+    }
+
+    /**
+     * Creates a new calendar or subscription.
+     *
+     * @param string $name
+     * @param MkCol $mkCol
+     * @throws DAV\Exception\InvalidResourceType
+     * @return void
+     */
+    function createExtendedCollection($name, MkCol $mkCol) {
+
+        $isCalendar = false;
+        $isSubscription = false;
+        foreach ($mkCol->getResourceType() as $rt) {
+            switch ($rt) {
+                case '{DAV:}collection' :
+                case '{http://calendarserver.org/ns/}shared-owner' :
+                    // ignore
+                    break;
+                case '{urn:ietf:params:xml:ns:caldav}calendar' :
+                    $isCalendar = true;
+                    break;
+                case '{http://calendarserver.org/ns/}subscribed' :
+                    $isSubscription = true;
+                    break;
+                default :
+                    throw new DAV\Exception\InvalidResourceType('Unknown resourceType: ' . $rt);
+            }
+        }
+
+        $properties = $mkCol->getRemainingValues();
+        $mkCol->setRemainingResultCode(201);
+
+        if ($isSubscription) {
+            if (!$this->caldavBackend instanceof Backend\SubscriptionSupport) {
+                throw new DAV\Exception\InvalidResourceType('This backend does not support subscriptions');
+            }
+            $this->caldavBackend->createSubscription($this->principalInfo['uri'], $name, $properties);
+
+        } elseif ($isCalendar) {
+            $this->caldavBackend->createCalendar($this->principalInfo['uri'], $name, $properties);
+
+        } else {
+            throw new DAV\Exception\InvalidResourceType('You can only create calendars and subscriptions in this collection');
+
+        }
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->principalInfo['uri'];
+
+    }
+
+    /**
+     * Returns a group principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getGroup() {
+
+        return null;
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        return [
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->principalInfo['uri'],
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => $this->principalInfo['uri'],
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->principalInfo['uri'] . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => $this->principalInfo['uri'] . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->principalInfo['uri'] . '/calendar-proxy-read',
+                'protected' => true,
+            ],
+
+        ];
+
+    }
+
+    /**
+     * Updates the ACL
+     *
+     * This method will receive a list of new ACE's.
+     *
+     * @param array $acl
+     * @return void
+     */
+    function setACL(array $acl) {
+
+        throw new DAV\Exception\MethodNotAllowed('Changing ACL is not yet supported');
+
+    }
+
+    /**
+     * Returns the list of supported privileges for this node.
+     *
+     * The returned data structure is a list of nested privileges.
+     * See Sabre\DAVACL\Plugin::getDefaultSupportedPrivilegeSet for a simple
+     * standard structure.
+     *
+     * If null is returned from this method, the default privilege set is used,
+     * which is fine for most common usecases.
+     *
+     * @return array|null
+     */
+    function getSupportedPrivilegeSet() {
+
+        return null;
+
+    }
+
+    /**
+     * This method is called when a user replied to a request to share.
+     *
+     * This method should return the url of the newly created calendar if the
+     * share was accepted.
+     *
+     * @param string href The sharee who is replying (often a mailto: address)
+     * @param int status One of the SharingPlugin::STATUS_* constants
+     * @param string $calendarUri The url to the calendar thats being shared
+     * @param string $inReplyTo The unique id this message is a response to
+     * @param string $summary A description of the reply
+     * @return null|string
+     */
+    function shareReply($href, $status, $calendarUri, $inReplyTo, $summary = null) {
+
+        if (!$this->caldavBackend instanceof Backend\SharingSupport) {
+            throw new DAV\Exception\NotImplemented('Sharing support is not implemented by this backend.');
+        }
+
+        return $this->caldavBackend->shareReply($href, $status, $calendarUri, $inReplyTo, $summary);
+
+    }
+
+    /**
+     * Searches through all of a users calendars and calendar objects to find
+     * an object with a specific UID.
+     *
+     * This method should return the path to this object, relative to the
+     * calendar home, so this path usually only contains two parts:
+     *
+     * calendarpath/objectpath.ics
+     *
+     * If the uid is not found, return null.
+     *
+     * This method should only consider * objects that the principal owns, so
+     * any calendars owned by other principals that also appear in this
+     * collection should be ignored.
+     *
+     * @param string $uid
+     * @return string|null
+     */
+    function getCalendarObjectByUID($uid) {
+
+        return $this->caldavBackend->getCalendarObjectByUID($this->principalInfo['uri'], $uid);
+
+    }
+
+}