[FEATURE] Add config and use composer autoloader.

We use composer already to install SabreDAV. Include config
composer.(json|lock) to install and manage more dependencies
in future.
Also provide PSR-4 autoloading for our namespaced classes, e.g.
"Zotlabs\". To regenerate autoloader maps use:
$ composer install --optimize-autoloader --no-dev

We could also remove the whole vendor/ folder from our repository, but
that would need changes in deployment and how to install hubs and needs
more discussion first.

2 files changed, 13 insertions, 4 deletions

diff --git a/vendor/sabre/vobject/lib/Recur/EventIterator.php b/vendor/sabre/vobject/lib/Recur/EventIterator.php
index 86c996aec..f91c336bc 100644
--- a/vendor/sabre/vobject/lib/Recur/EventIterator.php
+++ b/vendor/sabre/vobject/lib/Recur/EventIterator.php
@@ -325,7 +325,7 @@ class EventIterator implements \Iterator {
         $index = [];
         foreach ($this->overriddenEvents as $key => $event) {
             $stamp = $event->DTSTART->getDateTime($this->timeZone)->getTimeStamp();
-            $index[$stamp] = $key;
+            $index[$stamp][] = $key;
         }
         krsort($index);
         $this->counter = 0;
@@ -372,8 +372,9 @@ class EventIterator implements \Iterator {
         // overridden event may cut ahead.
         if ($this->overriddenEventsIndex) {
 
-            $offset = end($this->overriddenEventsIndex);
+            $offsets = end($this->overriddenEventsIndex);
             $timestamp = key($this->overriddenEventsIndex);
+            $offset = end($offsets);
             if (!$nextDate || $timestamp < $nextDate->getTimeStamp()) {
                 // Overridden event comes first.
                 $this->currentOverriddenEvent = $this->overriddenEvents[$offset];
@@ -383,7 +384,10 @@ class EventIterator implements \Iterator {
                 $this->currentDate = $this->currentOverriddenEvent->DTSTART->getDateTime($this->timeZone);
 
                 // Ensuring that this item will only be used once.
-                array_pop($this->overriddenEventsIndex);
+                array_pop($this->overriddenEventsIndex[$timestamp]);
+                if (!$this->overriddenEventsIndex[$timestamp]) {
+                    array_pop($this->overriddenEventsIndex);
+                }
 
                 // Exit point!
                 return;
@@ -451,7 +455,7 @@ class EventIterator implements \Iterator {
     /**
      * Overridden event index.
      *
-     * Key is timestamp, value is the index of the item in the $overriddenEvent
+     * Key is timestamp, value is the list of indexes of the item in the $overriddenEvent
      * property.
      *
      * @var array
diff --git a/vendor/sabre/vobject/lib/Recur/RRuleIterator.php b/vendor/sabre/vobject/lib/Recur/RRuleIterator.php
index 402e2de83..4c89f3ce4 100644
--- a/vendor/sabre/vobject/lib/Recur/RRuleIterator.php
+++ b/vendor/sabre/vobject/lib/Recur/RRuleIterator.php
@@ -718,6 +718,11 @@ class RRuleIterator implements Iterator {
 
                 case 'BYMONTH' :
                     $this->byMonth = (array)$value;
+                    foreach ($this->byMonth as $byMonth) {
+                        if (!is_numeric($byMonth) || (int)$byMonth < 1 || (int)$byMonth > 12) {
+                            throw new InvalidDataException('BYMONTH in RRULE must have value(s) betweeen 1 and 12!');
+                        }
+                    }
                     break;
 
                 case 'BYSETPOS' :