Initial Release of the calendar plugin

dav/SabreDAV/lib/Sabre/DAV/FSExt/Directory.php

@@ -0,0 +1,157 @@
+<?php
+
+/**
+ * Directory class
+ *
+ * @package Sabre
+ * @subpackage DAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class Sabre_DAV_FSExt_Directory extends Sabre_DAV_FSExt_Node implements Sabre_DAV_ICollection, Sabre_DAV_IQuota {
+
+    /**
+     * Creates a new file in the directory
+     *
+     * Data will either be supplied as a stream resource, or in certain cases
+     * as a string. Keep in mind that you may have to support either.
+     *
+     * After successful creation of the file, you may choose to return the ETag
+     * of the new file here.
+     *
+     * The returned ETag must be surrounded by double-quotes (The quotes should
+     * be part of the actual string).
+     *
+     * If you cannot accurately determine the ETag, you should not return it.
+     * If you don't store the file exactly as-is (you're transforming it
+     * somehow) you should also not return an ETag.
+     *
+     * This means that if a subsequent GET to this new file does not exactly
+     * return the same contents of what was submitted here, you are strongly
+     * recommended to omit the ETag.
+     *
+     * @param string $name Name of the file
+     * @param resource|string $data Initial payload
+     * @return null|string
+     */
+    public function createFile($name, $data = null) {
+
+        // We're not allowing dots
+        if ($name=='.' || $name=='..') throw new Sabre_DAV_Exception_Forbidden('Permission denied to . and ..');
+        $newPath = $this->path . '/' . $name;
+        file_put_contents($newPath,$data);
+
+        return '"' . md5_file($newPath) . '"';
+
+    }
+
+    /**
+     * Creates a new subdirectory
+     *
+     * @param string $name
+     * @return void
+     */
+    public function createDirectory($name) {
+
+        // We're not allowing dots
+        if ($name=='.' || $name=='..') throw new Sabre_DAV_Exception_Forbidden('Permission denied to . and ..');
+        $newPath = $this->path . '/' . $name;
+        mkdir($newPath);
+
+    }
+
+    /**
+     * Returns a specific child node, referenced by its name
+     *
+     * This method must throw Sabre_DAV_Exception_NotFound if the node does not
+     * exist.
+     *
+     * @param string $name
+     * @throws Sabre_DAV_Exception_NotFound
+     * @return Sabre_DAV_INode
+     */
+    public function getChild($name) {
+
+        $path = $this->path . '/' . $name;
+
+        if (!file_exists($path)) throw new Sabre_DAV_Exception_NotFound('File could not be located');
+        if ($name=='.' || $name=='..') throw new Sabre_DAV_Exception_Forbidden('Permission denied to . and ..');
+
+        if (is_dir($path)) {
+
+            return new Sabre_DAV_FSExt_Directory($path);
+
+        } else {
+
+            return new Sabre_DAV_FSExt_File($path);
+
+        }
+
+    }
+
+    /**
+     * Checks if a child exists.
+     *
+     * @param string $name
+     * @return bool
+     */
+    public function childExists($name) {
+
+        if ($name=='.' || $name=='..')
+            throw new Sabre_DAV_Exception_Forbidden('Permission denied to . and ..');
+
+        $path = $this->path . '/' . $name;
+        return file_exists($path);
+
+    }
+
+    /**
+     * Returns an array with all the child nodes
+     *
+     * @return Sabre_DAV_INode[]
+     */
+    public function getChildren() {
+
+        $nodes = array();
+        foreach(scandir($this->path) as $node) if($node!='.' && $node!='..' && $node!='.sabredav') $nodes[] = $this->getChild($node);
+        return $nodes;
+
+    }
+
+    /**
+     * Deletes all files in this directory, and then itself
+     *
+     * @return bool
+     */
+    public function delete() {
+
+        // Deleting all children
+        foreach($this->getChildren() as $child) $child->delete();
+
+        // Removing resource info, if its still around
+        if (file_exists($this->path . '/.sabredav')) unlink($this->path . '/.sabredav');
+
+        // Removing the directory itself
+        rmdir($this->path);
+
+        return parent::delete();
+
+    }
+
+    /**
+     * Returns available diskspace information
+     *
+     * @return array
+     */
+    public function getQuotaInfo() {
+
+        return array(
+            disk_total_space($this->path)-disk_free_space($this->path),
+            disk_free_space($this->path)
+            );
+
+    }
+
+}
+

dav/SabreDAV/lib/Sabre/DAV/FSExt/File.php

@@ -0,0 +1,117 @@
+<?php
+
+/**
+ * File class
+ *
+ * @package Sabre
+ * @subpackage DAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class Sabre_DAV_FSExt_File extends Sabre_DAV_FSExt_Node implements Sabre_DAV_PartialUpdate_IFile {
+
+    /**
+     * Updates the data
+     *
+     * data is a readable stream resource.
+     *
+     * @param resource|string $data
+     * @return string
+     */
+    public function put($data) {
+
+        file_put_contents($this->path,$data);
+        return '"' . md5_file($this->path) . '"';
+
+    }
+
+    /**
+     * Updates the data at a given offset
+     *
+     * The data argument is a readable stream resource.
+     * The offset argument is a 0-based offset where the data should be
+     * written.
+     *
+     * param resource|string $data
+     * @return void
+     */
+    public function putRange($data, $offset) {
+
+        $f = fopen($this->path, 'c');
+        fseek($f,$offset-1);
+        if (is_string($data)) {
+            fwrite($f, $data);
+        } else {
+            stream_copy_to_stream($data,$f);
+        }
+        fclose($f);
+        return '"' . md5_file($this->path) . '"';
+
+    }
+
+    /**
+     * Returns the data
+     *
+     * @return resource
+     */
+    public function get() {
+
+        return fopen($this->path,'r');
+
+    }
+
+    /**
+     * Delete the current file
+     *
+     * @return bool
+     */
+    public function delete() {
+
+        unlink($this->path);
+        return parent::delete();
+
+    }
+
+    /**
+     * Returns the ETag for a file
+     *
+     * An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
+     * The ETag is an arbitrary string, but MUST be surrounded by double-quotes.
+     *
+     * Return null if the ETag can not effectively be determined
+     *
+     * @return string|null
+     */
+    public function getETag() {
+
+        return '"' . md5_file($this->path). '"';
+
+    }
+
+    /**
+     * Returns the mime-type for a file
+     *
+     * If null is returned, we'll assume application/octet-stream
+     *
+     * @return string|null
+     */
+    public function getContentType() {
+
+        return null;
+
+    }
+
+    /**
+     * Returns the size of the file, in bytes
+     *
+     * @return int
+     */
+    public function getSize() {
+
+        return filesize($this->path);
+
+    }
+
+}
+

dav/SabreDAV/lib/Sabre/DAV/FSExt/Node.php

@@ -0,0 +1,212 @@
+<?php
+
+/**
+ * Base node-class
+ *
+ * The node class implements the method used by both the File and the Directory classes
+ *
+ * @package Sabre
+ * @subpackage DAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+abstract class Sabre_DAV_FSExt_Node extends Sabre_DAV_FS_Node implements Sabre_DAV_IProperties {
+
+    /**
+     * Updates properties on this node,
+     *
+     * @param array $properties
+     * @see Sabre_DAV_IProperties::updateProperties
+     * @return bool|array
+     */
+    public function updateProperties($properties) {
+
+        $resourceData = $this->getResourceData();
+
+        foreach($properties as $propertyName=>$propertyValue) {
+
+            // If it was null, we need to delete the property
+            if (is_null($propertyValue)) {
+                if (isset($resourceData['properties'][$propertyName])) {
+                    unset($resourceData['properties'][$propertyName]);
+                }
+            } else {
+                $resourceData['properties'][$propertyName] = $propertyValue;
+            }
+
+        }
+
+        $this->putResourceData($resourceData);
+        return true;
+    }
+
+    /**
+     * Returns a list of properties for this nodes.;
+     *
+     * The properties list is a list of propertynames the client requested, encoded as xmlnamespace#tagName, for example: http://www.example.org/namespace#author
+     * If the array is empty, all properties should be returned
+     *
+     * @param array $properties
+     * @return array
+     */
+    function getProperties($properties) {
+
+        $resourceData = $this->getResourceData();
+
+        // if the array was empty, we need to return everything
+        if (!$properties) return $resourceData['properties'];
+
+        $props = array();
+        foreach($properties as $property) {
+            if (isset($resourceData['properties'][$property])) $props[$property] = $resourceData['properties'][$property];
+        }
+
+        return $props;
+
+    }
+
+    /**
+     * Returns the path to the resource file
+     *
+     * @return string
+     */
+    protected function getResourceInfoPath() {
+
+        list($parentDir) = Sabre_DAV_URLUtil::splitPath($this->path);
+        return $parentDir . '/.sabredav';
+
+    }
+
+    /**
+     * Returns all the stored resource information
+     *
+     * @return array
+     */
+    protected function getResourceData() {
+
+        $path = $this->getResourceInfoPath();
+        if (!file_exists($path)) return array('properties' => array());
+
+        // opening up the file, and creating a shared lock
+        $handle = fopen($path,'r');
+        flock($handle,LOCK_SH);
+        $data = '';
+
+        // Reading data until the eof
+        while(!feof($handle)) {
+            $data.=fread($handle,8192);
+        }
+
+        // We're all good
+        fclose($handle);
+
+        // Unserializing and checking if the resource file contains data for this file
+        $data = unserialize($data);
+        if (!isset($data[$this->getName()])) {
+            return array('properties' => array());
+        }
+
+        $data = $data[$this->getName()];
+        if (!isset($data['properties'])) $data['properties'] = array();
+        return $data;
+
+    }
+
+    /**
+     * Updates the resource information
+     *
+     * @param array $newData
+     * @return void
+     */
+    protected function putResourceData(array $newData) {
+
+        $path = $this->getResourceInfoPath();
+
+        // opening up the file, and creating a shared lock
+        $handle = fopen($path,'a+');
+        flock($handle,LOCK_EX);
+        $data = '';
+
+        rewind($handle);
+
+        // Reading data until the eof
+        while(!feof($handle)) {
+            $data.=fread($handle,8192);
+        }
+
+        // Unserializing and checking if the resource file contains data for this file
+        $data = unserialize($data);
+        $data[$this->getName()] = $newData;
+        ftruncate($handle,0);
+        rewind($handle);
+
+        fwrite($handle,serialize($data));
+        fclose($handle);
+
+    }
+
+    /**
+     * Renames the node
+     *
+     * @param string $name The new name
+     * @return void
+     */
+    public function setName($name) {
+
+        list($parentPath, ) = Sabre_DAV_URLUtil::splitPath($this->path);
+        list(, $newName) = Sabre_DAV_URLUtil::splitPath($name);
+        $newPath = $parentPath . '/' . $newName;
+
+        // We're deleting the existing resourcedata, and recreating it
+        // for the new path.
+        $resourceData = $this->getResourceData();
+        $this->deleteResourceData();
+
+        rename($this->path,$newPath);
+        $this->path = $newPath;
+        $this->putResourceData($resourceData);
+
+
+    }
+
+    /**
+     * @return bool
+     */
+    public function deleteResourceData() {
+
+        // When we're deleting this node, we also need to delete any resource information
+        $path = $this->getResourceInfoPath();
+        if (!file_exists($path)) return true;
+
+        // opening up the file, and creating a shared lock
+        $handle = fopen($path,'a+');
+        flock($handle,LOCK_EX);
+        $data = '';
+
+        rewind($handle);
+
+        // Reading data until the eof
+        while(!feof($handle)) {
+            $data.=fread($handle,8192);
+        }
+
+        // Unserializing and checking if the resource file contains data for this file
+        $data = unserialize($data);
+        if (isset($data[$this->getName()])) unset($data[$this->getName()]);
+        ftruncate($handle,0);
+        rewind($handle);
+        fwrite($handle,serialize($data));
+        fclose($handle);
+
+        return true;
+    }
+
+    public function delete() {
+
+        return $this->deleteResourceData();
+
+    }
+
+}
+