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

6 files changed, 622 insertions, 0 deletions

diff --git a/vendor/sabre/xml/lib/Element/Base.php b/vendor/sabre/xml/lib/Element/Base.php
new file mode 100644
index 000000000..f59ba49a0
--- /dev/null
+++ b/vendor/sabre/xml/lib/Element/Base.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+
+/**
+ * The Base XML element is the standard parser & generator that's used by the
+ * XML reader and writer.
+ *
+ * It spits out a simple PHP array structure during deserialization, that can
+ * also be directly injected back into Writer::write.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Base implements Xml\Element {
+
+    /**
+     * PHP value to serialize.
+     *
+     * @var mixed
+     */
+    protected $value;
+
+    /**
+     * Constructor
+     *
+     * @param mixed $value
+     */
+    function __construct($value = null) {
+
+        $this->value = $value;
+
+    }
+
+    /**
+     * 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 XmlSerializable 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(Xml\Writer $writer) {
+
+        $writer->write($this->value);
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statictly, 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 Xml\Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Xml\Reader $reader) {
+
+        $subTree = $reader->parseInnerTree();
+        return $subTree;
+
+    }
+
+}
diff --git a/vendor/sabre/xml/lib/Element/Cdata.php b/vendor/sabre/xml/lib/Element/Cdata.php
new file mode 100644
index 000000000..5f42c4c6e
--- /dev/null
+++ b/vendor/sabre/xml/lib/Element/Cdata.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+
+/**
+ * CDATA element.
+ *
+ * This element allows you to easily inject CDATA.
+ *
+ * Note that we strongly recommend avoiding CDATA nodes, unless you definitely
+ * know what you're doing, or you're working with unchangable systems that
+ * require CDATA.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Cdata implements Xml\XmlSerializable
+{
+    /**
+     * CDATA element value.
+     *
+     * @var string
+     */
+    protected $value;
+
+    /**
+     * Constructor
+     *
+     * @param string $value
+     */
+    function __construct($value)
+    {
+        $this->value = $value;
+    }
+
+    /**
+     * 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(Xml\Writer $writer) {
+
+        $writer->writeCData($this->value);
+
+    }
+
+}
diff --git a/vendor/sabre/xml/lib/Element/Elements.php b/vendor/sabre/xml/lib/Element/Elements.php
new file mode 100644
index 000000000..9eefd1bf8
--- /dev/null
+++ b/vendor/sabre/xml/lib/Element/Elements.php
@@ -0,0 +1,108 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+use Sabre\Xml\Deserializer;
+use Sabre\Xml\Serializer;
+
+/**
+ * 'Elements' is a simple list of elements, 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",
+ * ];
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Elements implements Xml\Element {
+
+    /**
+     * Value to serialize
+     *
+     * @var array
+     */
+    protected $value;
+
+    /**
+     * Constructor
+     *
+     * @param array $value
+     */
+    function __construct(array $value = []) {
+
+        $this->value = $value;
+
+    }
+
+    /**
+     * 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(Xml\Writer $writer) {
+
+        Serializer\enum($writer, $this->value);
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statictly, 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->parseSubTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Xml\Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Xml\Reader $reader) {
+
+        return Deserializer\enum($reader);
+
+    }
+
+}
diff --git a/vendor/sabre/xml/lib/Element/KeyValue.php b/vendor/sabre/xml/lib/Element/KeyValue.php
new file mode 100644
index 000000000..7ce53bf4c
--- /dev/null
+++ b/vendor/sabre/xml/lib/Element/KeyValue.php
@@ -0,0 +1,108 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+use Sabre\Xml\Deserializer;
+
+/**
+ * 'KeyValue' parses out all child elements from a single node, and outputs a
+ * key=>value struct.
+ *
+ * Attributes will be removed, and duplicate child elements are discarded.
+ * Complex values within the elements will be parsed by the 'standard' parser.
+ *
+ * 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,
+ * ];
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class KeyValue implements Xml\Element {
+
+    /**
+     * Value to serialize
+     *
+     * @var array
+     */
+    protected $value;
+
+    /**
+     * Constructor
+     *
+     * @param array $value
+     */
+    function __construct(array $value = []) {
+
+        $this->value = $value;
+
+    }
+
+    /**
+     * 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(Xml\Writer $writer) {
+
+        $writer->write($this->value);
+
+    }
+
+    /**
+     * 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 Xml\Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Xml\Reader $reader) {
+
+        return Deserializer\keyValue($reader);
+
+    }
+
+}
diff --git a/vendor/sabre/xml/lib/Element/Uri.php b/vendor/sabre/xml/lib/Element/Uri.php
new file mode 100644
index 000000000..8f45c0027
--- /dev/null
+++ b/vendor/sabre/xml/lib/Element/Uri.php
@@ -0,0 +1,104 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+
+/**
+ * Uri element.
+ *
+ * This represents a single uri. An example of how this may be encoded:
+ *
+ *    <link>/foo/bar</link>
+ *    <d:href xmlns:d="DAV:">http://example.org/hi</d:href>
+ *
+ * If the uri is relative, it will be automatically expanded to an absolute
+ * url during writing and reading, if the contextUri property is set on the
+ * reader and/or writer.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Uri implements Xml\Element {
+
+    /**
+     * Uri element value.
+     *
+     * @var string
+     */
+    protected $value;
+
+    /**
+     * Constructor
+     *
+     * @param string $value
+     */
+    function __construct($value)
+    {
+        $this->value = $value;
+    }
+
+    /**
+     * 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(Xml\Writer $writer) {
+
+        $writer->text(
+            \Sabre\Uri\resolve(
+                $writer->contextUri,
+                $this->value
+            )
+        );
+
+    }
+
+    /**
+     * This method is called during xml parsing.
+     *
+     * This method is called statically, 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->parseSubTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Xml\Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Xml\Reader $reader) {
+
+        return new self(
+            \Sabre\Uri\resolve(
+                $reader->contextUri,
+                $reader->readText()
+            )
+        );
+
+    }
+
+}
diff --git a/vendor/sabre/xml/lib/Element/XmlFragment.php b/vendor/sabre/xml/lib/Element/XmlFragment.php
new file mode 100644
index 000000000..0abfac132
--- /dev/null
+++ b/vendor/sabre/xml/lib/Element/XmlFragment.php
@@ -0,0 +1,147 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+use Sabre\Xml\Element;
+
+/**
+ * The XmlFragment element allows you to extract a portion of your xml tree,
+ * and get a well-formed xml string.
+ *
+ * This goes a bit beyond `innerXml` and friends, as we'll also match all the
+ * correct namespaces.
+ *
+ * Please note that the XML fragment:
+ *
+ * 1. Will not have an <?xml declaration.
+ * 2. Or a DTD
+ * 3. It will have all the relevant xmlns attributes.
+ * 4. It may not have a root element.
+ */
+class XmlFragment implements Element {
+
+    protected $xml;
+
+    function __construct($xml) {
+
+        $this->xml = $xml;
+
+    }
+
+    function getXml() {
+
+        return $this->xml;
+
+    }
+
+    /**
+     * 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) {
+
+        $reader = new Reader();
+
+        // Wrapping the xml in a container, so root-less values can still be
+        // parsed.
+        $xml = <<<XML
+<?xml version="1.0"?>
+<xml-fragment xmlns="http://sabre.io/ns">{$this->getXml()}</xml-fragment>
+XML;
+
+        $reader->xml($xml);
+
+        while ($reader->read()) {
+
+            if ($reader->depth < 1) {
+                // Skipping the root node.
+                continue;
+            }
+
+            switch ($reader->nodeType) {
+
+                case Reader::ELEMENT :
+                    $writer->startElement(
+                        $reader->getClark()
+                    );
+                    $empty = $reader->isEmptyElement;
+                    while ($reader->moveToNextAttribute()) {
+                        switch ($reader->namespaceURI) {
+                            case '' :
+                                $writer->writeAttribute($reader->localName, $reader->value);
+                                break;
+                            case 'http://www.w3.org/2000/xmlns/' :
+                                // Skip namespace declarations
+                                break;
+                            default :
+                                $writer->writeAttribute($reader->getClark(), $reader->value);
+                                break;
+                        }
+                    }
+                    if ($empty) {
+                        $writer->endElement();
+                    }
+                    break;
+                case Reader::CDATA :
+                case Reader::TEXT :
+                    $writer->text(
+                        $reader->value
+                    );
+                    break;
+                case Reader::END_ELEMENT :
+                    $writer->endElement();
+                    break;
+
+            }
+
+        }
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statictly, 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.
+     *
+     * 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) {
+
+        $result = new self($reader->readInnerXml());
+        $reader->next();
+        return $result;
+
+    }
+
+}