diff -r 5b37998e522e -r 162c1de6545a web/lib/Zend/Pdf/Element/Object/Stream.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Pdf/Element/Object/Stream.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,453 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Pdf
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Stream.php 22909 2010-08-27 19:57:48Z alexander $
+ */
+
+
+/** Internally used classes */
+require_once 'Zend/Pdf/Element/Stream.php';
+require_once 'Zend/Pdf/Element/Dictionary.php';
+require_once 'Zend/Pdf/Element/Numeric.php';
+
+
+/** Zend_Pdf_Element_Object */
+require_once 'Zend/Pdf/Element/Object.php';
+
+/**
+ * PDF file 'stream object' element implementation
+ *
+ * @category   Zend
+ * @package    Zend_Pdf
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Pdf_Element_Object_Stream extends Zend_Pdf_Element_Object
+{
+    /**
+     * StreamObject dictionary
+     * Required enries:
+     * Length
+     *
+     * @var Zend_Pdf_Element_Dictionary
+     */
+    private $_dictionary;
+
+    /**
+     * Flag which signals, that stream is decoded
+     *
+     * @var boolean
+     */
+    private $_streamDecoded;
+
+    /**
+     * Stored original stream object dictionary.
+     * Used to decode stream at access time.
+     *
+     * The only properties affecting decoding are sored here.
+     *
+     * @var array|null
+     */
+    private $_initialDictionaryData = null;
+
+    /**
+     * Object constructor
+     *
+     * @param mixed $val
+     * @param integer $objNum
+     * @param integer $genNum
+     * @param Zend_Pdf_ElementFactory $factory
+     * @param Zend_Pdf_Element_Dictionary|null $dictionary
+     * @throws Zend_Pdf_Exception
+     */
+    public function __construct($val, $objNum, $genNum, Zend_Pdf_ElementFactory $factory, $dictionary = null)
+    {
+        parent::__construct(new Zend_Pdf_Element_Stream($val), $objNum, $genNum, $factory);
+
+        if ($dictionary === null) {
+            $this->_dictionary    = new Zend_Pdf_Element_Dictionary();
+            $this->_dictionary->Length = new Zend_Pdf_Element_Numeric(strlen( $val ));
+            $this->_streamDecoded = true;
+        } else {
+            $this->_dictionary    = $dictionary;
+            $this->_streamDecoded = false;
+        }
+    }
+
+
+    /**
+     * Extract dictionary data which are used to store information and to normalize filters
+     * information before defiltering.
+     *
+     * @return array
+     */
+    private function _extractDictionaryData()
+    {
+        $dictionaryArray = array();
+
+        $dictionaryArray['Filter']      = array();
+        $dictionaryArray['DecodeParms'] = array();
+        if ($this->_dictionary->Filter === null) {
+            // Do nothing.
+        } else if ($this->_dictionary->Filter->getType() == Zend_Pdf_Element::TYPE_ARRAY) {
+            foreach ($this->_dictionary->Filter->items as $id => $filter) {
+                $dictionaryArray['Filter'][$id]      = $filter->value;
+                $dictionaryArray['DecodeParms'][$id] = array();
+
+                if ($this->_dictionary->DecodeParms !== null ) {
+                    if ($this->_dictionary->DecodeParms->items[$id] !== null &&
+                        $this->_dictionary->DecodeParms->items[$id]->value !== null ) {
+                        foreach ($this->_dictionary->DecodeParms->items[$id]->getKeys() as $paramKey) {
+                            $dictionaryArray['DecodeParms'][$id][$paramKey] =
+                                  $this->_dictionary->DecodeParms->items[$id]->$paramKey->value;
+                        }
+                    }
+                }
+            }
+        } else if ($this->_dictionary->Filter->getType() != Zend_Pdf_Element::TYPE_NULL) {
+            $dictionaryArray['Filter'][0]      = $this->_dictionary->Filter->value;
+            $dictionaryArray['DecodeParms'][0] = array();
+            if ($this->_dictionary->DecodeParms !== null ) {
+                foreach ($this->_dictionary->DecodeParms->getKeys() as $paramKey) {
+                    $dictionaryArray['DecodeParms'][0][$paramKey] =
+                          $this->_dictionary->DecodeParms->$paramKey->value;
+                }
+            }
+        }
+
+        if ($this->_dictionary->F !== null) {
+            $dictionaryArray['F'] = $this->_dictionary->F->value;
+        }
+
+        $dictionaryArray['FFilter']      = array();
+        $dictionaryArray['FDecodeParms'] = array();
+        if ($this->_dictionary->FFilter === null) {
+            // Do nothing.
+        } else if ($this->_dictionary->FFilter->getType() == Zend_Pdf_Element::TYPE_ARRAY) {
+            foreach ($this->_dictionary->FFilter->items as $id => $filter) {
+                $dictionaryArray['FFilter'][$id]      = $filter->value;
+                $dictionaryArray['FDecodeParms'][$id] = array();
+
+                if ($this->_dictionary->FDecodeParms !== null ) {
+                    if ($this->_dictionary->FDecodeParms->items[$id] !== null &&
+                        $this->_dictionary->FDecodeParms->items[$id]->value !== null) {
+                        foreach ($this->_dictionary->FDecodeParms->items[$id]->getKeys() as $paramKey) {
+                            $dictionaryArray['FDecodeParms'][$id][$paramKey] =
+                                  $this->_dictionary->FDecodeParms->items[$id]->items[$paramKey]->value;
+                        }
+                    }
+                }
+            }
+        } else {
+            $dictionaryArray['FFilter'][0]      = $this->_dictionary->FFilter->value;
+            $dictionaryArray['FDecodeParms'][0] = array();
+            if ($this->_dictionary->FDecodeParms !== null ) {
+                foreach ($this->_dictionary->FDecodeParms->getKeys() as $paramKey) {
+                    $dictionaryArray['FDecodeParms'][0][$paramKey] =
+                          $this->_dictionary->FDecodeParms->items[$paramKey]->value;
+                }
+            }
+        }
+
+        return $dictionaryArray;
+    }
+
+    /**
+     * Decode stream
+     *
+     * @throws Zend_Pdf_Exception
+     */
+    private function _decodeStream()
+    {
+        if ($this->_initialDictionaryData === null) {
+            $this->_initialDictionaryData = $this->_extractDictionaryData();
+        }
+
+        /**
+         * All applied stream filters must be processed to decode stream.
+         * If we don't recognize any of applied filetrs an exception should be thrown here
+         */
+        if (isset($this->_initialDictionaryData['F'])) {
+            /** @todo Check, how external files can be processed. */
+            require_once 'Zend/Pdf/Exception.php';
+            throw new Zend_Pdf_Exception('External filters are not supported now.');
+        }
+
+        foreach ($this->_initialDictionaryData['Filter'] as $id => $filterName ) {
+            $valueRef = &$this->_value->value->getRef();
+            $this->_value->value->touch();
+            switch ($filterName) {
+                case 'ASCIIHexDecode':
+                    require_once 'Zend/Pdf/Filter/AsciiHex.php';
+                    $valueRef = Zend_Pdf_Filter_AsciiHex::decode($valueRef);
+                    break;
+
+                case 'ASCII85Decode':
+                    require_once 'Zend/Pdf/Filter/Ascii85.php';
+                    $valueRef = Zend_Pdf_Filter_Ascii85::decode($valueRef);
+                    break;
+
+                case 'FlateDecode':
+                    require_once 'Zend/Pdf/Filter/Compression/Flate.php';
+                    $valueRef = Zend_Pdf_Filter_Compression_Flate::decode($valueRef,
+                                                                          $this->_initialDictionaryData['DecodeParms'][$id]);
+                    break;
+
+                case 'LZWDecode':
+                    require_once 'Zend/Pdf/Filter/Compression/Lzw.php';
+                    $valueRef = Zend_Pdf_Filter_Compression_Lzw::decode($valueRef,
+                                                                        $this->_initialDictionaryData['DecodeParms'][$id]);
+                    break;
+
+                case 'RunLengthDecode':
+                    require_once 'Zend/Pdf/Filter/RunLength.php';
+                    $valueRef = Zend_Pdf_Filter_RunLength::decode($valueRef);
+                    break;
+
+                default:
+                    require_once 'Zend/Pdf/Exception.php';
+                    throw new Zend_Pdf_Exception('Unknown stream filter: \'' . $filterName . '\'.');
+            }
+        }
+
+        $this->_streamDecoded = true;
+    }
+
+    /**
+     * Encode stream
+     *
+     * @throws Zend_Pdf_Exception
+     */
+    private function _encodeStream()
+    {
+        /**
+         * All applied stream filters must be processed to encode stream.
+         * If we don't recognize any of applied filetrs an exception should be thrown here
+         */
+        if (isset($this->_initialDictionaryData['F'])) {
+            /** @todo Check, how external files can be processed. */
+            require_once 'Zend/Pdf/Exception.php';
+            throw new Zend_Pdf_Exception('External filters are not supported now.');
+        }
+
+        $filters = array_reverse($this->_initialDictionaryData['Filter'], true);
+
+        foreach ($filters as $id => $filterName ) {
+            $valueRef = &$this->_value->value->getRef();
+            $this->_value->value->touch();
+            switch ($filterName) {
+                case 'ASCIIHexDecode':
+                    require_once 'Zend/Pdf/Filter/AsciiHex.php';
+                    $valueRef = Zend_Pdf_Filter_AsciiHex::encode($valueRef);
+                    break;
+
+                case 'ASCII85Decode':
+                    require_once 'Zend/Pdf/Filter/Ascii85.php';
+                    $valueRef = Zend_Pdf_Filter_Ascii85::encode($valueRef);
+                    break;
+
+                case 'FlateDecode':
+                    require_once 'Zend/Pdf/Filter/Compression/Flate.php';
+                    $valueRef = Zend_Pdf_Filter_Compression_Flate::encode($valueRef,
+                                                                          $this->_initialDictionaryData['DecodeParms'][$id]);
+                    break;
+
+                case 'LZWDecode':
+                    require_once 'Zend/Pdf/Filter/Compression/Lzw.php';
+                    $valueRef = Zend_Pdf_Filter_Compression_Lzw::encode($valueRef,
+                                                                        $this->_initialDictionaryData['DecodeParms'][$id]);
+                    break;
+
+                 case 'RunLengthDecode':
+                    require_once 'Zend/Pdf/Filter/RunLength.php';
+                    $valueRef = Zend_Pdf_Filter_RunLength::encode($valueRef);
+                    break;
+
+               default:
+                    require_once 'Zend/Pdf/Exception.php';
+                    throw new Zend_Pdf_Exception('Unknown stream filter: \'' . $filterName . '\'.');
+            }
+        }
+
+        $this->_streamDecoded = false;
+    }
+
+    /**
+     * Get handler
+     *
+     * @param string $property
+     * @return mixed
+     * @throws Zend_Pdf_Exception
+     */
+    public function __get($property)
+    {
+        if ($property == 'dictionary') {
+            /**
+             * If stream is not decoded yet, then store original decoding options (do it only once).
+             */
+            if (( !$this->_streamDecoded ) && ($this->_initialDictionaryData === null)) {
+                $this->_initialDictionaryData = $this->_extractDictionaryData();
+            }
+
+            return $this->_dictionary;
+        }
+
+        if ($property == 'value') {
+            if (!$this->_streamDecoded) {
+                $this->_decodeStream();
+            }
+
+            return $this->_value->value->getRef();
+        }
+
+        require_once 'Zend/Pdf/Exception.php';
+        throw new Zend_Pdf_Exception('Unknown stream object property requested.');
+    }
+
+
+    /**
+     * Set handler
+     *
+     * @param string $property
+     * @param  mixed $value
+     */
+    public function __set($property, $value)
+    {
+        if ($property == 'value') {
+            $valueRef = &$this->_value->value->getRef();
+            $valueRef = $value;
+            $this->_value->value->touch();
+
+            $this->_streamDecoded = true;
+
+            return;
+        }
+
+        require_once 'Zend/Pdf/Exception.php';
+        throw new Zend_Pdf_Exception('Unknown stream object property: \'' . $property . '\'.');
+    }
+
+
+    /**
+     * Treat stream data as already encoded
+     */
+    public function skipFilters()
+    {
+        $this->_streamDecoded = false;
+    }
+
+
+    /**
+     * Call handler
+     *
+     * @param string $method
+     * @param array  $args
+     * @return mixed
+     */
+    public function __call($method, $args)
+    {
+        if (!$this->_streamDecoded) {
+            $this->_decodeStream();
+        }
+
+        switch (count($args)) {
+            case 0:
+                return $this->_value->$method();
+            case 1:
+                return $this->_value->$method($args[0]);
+            default:
+                require_once 'Zend/Pdf/Exception.php';
+                throw new Zend_Pdf_Exception('Unsupported number of arguments');
+        }
+    }
+
+    /**
+     * Detach PDF object from the factory (if applicable), clone it and attach to new factory.
+     *
+     * @param Zend_Pdf_ElementFactory $factory  The factory to attach
+     * @param array &$processed  List of already processed indirect objects, used to avoid objects duplication
+     * @param integer $mode  Cloning mode (defines filter for objects cloning)
+     * @returns Zend_Pdf_Element
+     */
+    public function makeClone(Zend_Pdf_ElementFactory $factory, array &$processed, $mode)
+    {
+        $id = spl_object_hash($this);
+        if (isset($processed[$id])) {
+            // Do nothing if object is already processed
+            // return it
+            return $processed[$id];
+        }
+
+        $streamValue      = $this->_value;
+        $streamDictionary = $this->_dictionary->makeClone($factory, $processed, $mode);
+
+        // Make new empty instance of stream object and register it in $processed container
+        $processed[$id] = $clonedObject = $factory->newStreamObject('');
+
+        // Copy current object data and state
+        $clonedObject->_dictionary            = $this->_dictionary->makeClone($factory, $processed, $mode);
+        $clonedObject->_value                 = $this->_value->makeClone($factory, $processed, $mode);
+        $clonedObject->_initialDictionaryData = $this->_initialDictionaryData;
+        $clonedObject->_streamDecoded         = $this->_streamDecoded;
+
+        return  $clonedObject;
+    }
+
+    /**
+     * Dump object to a string to save within PDF file
+     *
+     * $factory parameter defines operation context.
+     *
+     * @param Zend_Pdf_ElementFactory $factory
+     * @return string
+     */
+    public function dump(Zend_Pdf_ElementFactory $factory)
+    {
+        $shift = $factory->getEnumerationShift($this->_factory);
+
+        if ($this->_streamDecoded) {
+            $this->_initialDictionaryData = $this->_extractDictionaryData();
+            $this->_encodeStream();
+        } else if ($this->_initialDictionaryData != null) {
+            $newDictionary   = $this->_extractDictionaryData();
+
+            if ($this->_initialDictionaryData !== $newDictionary) {
+                $this->_decodeStream();
+                $this->_initialDictionaryData = $newDictionary;
+                $this->_encodeStream();
+            }
+        }
+
+        // Update stream length
+        $this->dictionary->Length->value = $this->_value->length();
+
+        return  $this->_objNum + $shift . " " . $this->_genNum . " obj \n"
+             .  $this->dictionary->toString($factory) . "\n"
+             .  $this->_value->toString($factory) . "\n"
+             . "endobj\n";
+    }
+
+    /**
+     * Clean up resources, used by object
+     */
+    public function cleanUp()
+    {
+        $this->_dictionary = null;
+        $this->_value      = null;
+    }
+}