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

1 files changed, 255 insertions, 0 deletions

diff --git a/vendor/sabre/xml/lib/Deserializer/functions.php b/vendor/sabre/xml/lib/Deserializer/functions.php
new file mode 100644
index 000000000..fe88a6db8
--- /dev/null
+++ b/vendor/sabre/xml/lib/Deserializer/functions.php
@@ -0,0 +1,255 @@
+<?php
+
+namespace Sabre\Xml\Deserializer;
+
+use Sabre\Xml\Reader;
+
+/**
+ * This class provides a number of 'deserializer' helper functions.
+ * These can be used to easily specify custom deserializers for specific
+ * XML elements.
+ *
+ * You can either use these functions from within the $elementMap in the
+ * Service or Reader class, or you can call them from within your own
+ * deserializer functions.
+ */
+
+/*
+ * The 'keyValue' deserializer parses all child elements, and outputs them as
+ * a "key=>value" array.
+ *
+ * For example, keyvalue will parse:
+ *
+ * <?xml version="1.0"?>
+ * <s:root xmlns:s="http://sabredav.org/ns">
+ *   <s:elem1>value1</s:elem1>
+ *   <s:elem2>value2</s:elem2>
+ *   <s:elem3 />
+ * </s:root>
+ *
+ * Into:
+ *
+ * [
+ *   "{http://sabredav.org/ns}elem1" => "value1",
+ *   "{http://sabredav.org/ns}elem2" => "value2",
+ *   "{http://sabredav.org/ns}elem3" => null,
+ * ];
+ *
+ * If you specify the 'namespace' argument, the deserializer will remove
+ * the namespaces of the keys that match that namespace.
+ *
+ * For example, if you call keyValue like this:
+ *
+ * keyValue($reader, 'http://sabredav.org/ns')
+ *
+ * it's output will instead be:
+ *
+ * [
+ *   "elem1" => "value1",
+ *   "elem2" => "value2",
+ *   "elem3" => null,
+ * ];
+ *
+ * Attributes will be removed from the top-level elements. If elements with
+ * the same name appear twice in the list, only the last one will be kept.
+ *
+ *
+ * @param Reader $reader
+ * @param string $namespace
+ * @return array
+ */
+function keyValue(Reader $reader, $namespace = null) {
+
+    // If there's no children, we don't do anything.
+    if ($reader->isEmptyElement) {
+        $reader->next();
+        return [];
+    }
+
+    $values = [];
+
+    $reader->read();
+    do {
+
+        if ($reader->nodeType === Reader::ELEMENT) {
+            if ($namespace !== null && $reader->namespaceURI === $namespace) {
+                $values[$reader->localName] = $reader->parseCurrentElement()['value'];
+            } else {
+                $clark = $reader->getClark();
+                $values[$clark] = $reader->parseCurrentElement()['value'];
+            }
+        } else {
+            $reader->read();
+        }
+    } while ($reader->nodeType !== Reader::END_ELEMENT);
+
+    $reader->read();
+
+    return $values;
+
+}
+
+/**
+ * The 'enum' deserializer parses elements into a simple list
+ * without values or attributes.
+ *
+ * For example, Elements will parse:
+ *
+ * <?xml version="1.0"? >
+ * <s:root xmlns:s="http://sabredav.org/ns">
+ *   <s:elem1 />
+ *   <s:elem2 />
+ *   <s:elem3 />
+ *   <s:elem4>content</s:elem4>
+ *   <s:elem5 attr="val" />
+ * </s:root>
+ *
+ * Into:
+ *
+ * [
+ *   "{http://sabredav.org/ns}elem1",
+ *   "{http://sabredav.org/ns}elem2",
+ *   "{http://sabredav.org/ns}elem3",
+ *   "{http://sabredav.org/ns}elem4",
+ *   "{http://sabredav.org/ns}elem5",
+ * ];
+ *
+ * This is useful for 'enum'-like structures.
+ *
+ * If the $namespace argument is specified, it will strip the namespace
+ * for all elements that match that.
+ *
+ * For example,
+ *
+ * enum($reader, 'http://sabredav.org/ns')
+ *
+ * would return:
+ *
+ * [
+ *   "elem1",
+ *   "elem2",
+ *   "elem3",
+ *   "elem4",
+ *   "elem5",
+ * ];
+ *
+ * @param Reader $reader
+ * @param string $namespace
+ * @return string[]
+ */
+function enum(Reader $reader, $namespace = null) {
+
+    // If there's no children, we don't do anything.
+    if ($reader->isEmptyElement) {
+        $reader->next();
+        return [];
+    }
+    $reader->read();
+    $currentDepth = $reader->depth;
+
+    $values = [];
+    do {
+
+        if ($reader->nodeType !== Reader::ELEMENT) {
+            continue;
+        }
+        if (!is_null($namespace) && $namespace === $reader->namespaceURI) {
+            $values[] = $reader->localName;
+        } else {
+            $values[] = $reader->getClark();
+        }
+
+    } while ($reader->depth >= $currentDepth && $reader->next());
+
+    $reader->next();
+    return $values;
+
+}
+
+/**
+ * The valueObject deserializer turns an xml element into a PHP object of
+ * a specific class.
+ *
+ * This is primarily used by the mapValueObject function from the Service
+ * class, but it can also easily be used for more specific situations.
+ *
+ * @param Reader $reader
+ * @param string $className
+ * @param string $namespace
+ * @return object
+ */
+function valueObject(Reader $reader, $className, $namespace) {
+
+    $valueObject = new $className();
+    if ($reader->isEmptyElement) {
+        $reader->next();
+        return $valueObject;
+    }
+
+    $defaultProperties = get_class_vars($className);
+
+    $reader->read();
+    do {
+
+        if ($reader->nodeType === Reader::ELEMENT && $reader->namespaceURI == $namespace) {
+
+            if (property_exists($valueObject, $reader->localName)) {
+                if (is_array($defaultProperties[$reader->localName])) {
+                    $valueObject->{$reader->localName}[] = $reader->parseCurrentElement()['value'];
+                } else {
+                    $valueObject->{$reader->localName} = $reader->parseCurrentElement()['value'];
+                }
+            } else {
+                // Ignore property
+                $reader->next();
+            }
+        } else {
+            $reader->read();
+        }
+    } while ($reader->nodeType !== Reader::END_ELEMENT);
+
+    $reader->read();
+    return $valueObject;
+
+}
+
+/*
+ * This deserializer helps you deserialize xml structures that look like
+ * this:
+ *
+ * <collection>
+ *    <item>...</item>
+ *    <item>...</item>
+ *    <item>...</item>
+ * </collection>
+ *
+ * Many XML documents use  patterns like that, and this deserializer
+ * allow you to get all the 'items' as an array.
+ *
+ * In that previous example, you would register the deserializer as such:
+ *
+ * $reader->elementMap['{}collection'] = function($reader) {
+ *     return repeatingElements($reader, '{}item');
+ * }
+ *
+ * The repeatingElements deserializer simply returns everything as an array.
+ *
+ * @param Reader $reader
+ * @param string $childElementName Element name in clark-notation
+ * @return array
+ */
+function repeatingElements(Reader $reader, $childElementName) {
+
+    $result = [];
+
+    foreach ($reader->parseGetElements() as $element) {
+
+        if ($element['name'] === $childElementName) {
+            $result[] = $element['value'];
+        }
+
+    }
+
+    return $result;
+
+}