source: extensions/Google2Piwigo/include/Zend/Gdata/MediaMimeStream.php @ 17475

Revision 17475, 5.5 KB checked in by mistic100, 7 years ago (diff)

new extension: Google2Piwigo

Line 
1<?php
2
3/**
4 * Zend Framework
5 *
6 * LICENSE
7 *
8 * This source file is subject to the new BSD license that is bundled
9 * with this package in the file LICENSE.txt.
10 * It is also available through the world-wide-web at this URL:
11 * http://framework.zend.com/license/new-bsd
12 * If you did not receive a copy of the license and are unable to
13 * obtain it through the world-wide-web, please send an email
14 * to license@zend.com so we can send you a copy immediately.
15 *
16 * @category   Zend
17 * @package    Zend_Gdata
18 * @subpackage Gdata
19 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
20 * @license    http://framework.zend.com/license/new-bsd     New BSD License
21 * @version    $Id: MediaMimeStream.php 24594 2012-01-05 21:27:01Z matthew $
22 */
23
24/**
25*  @see Zend_Gdata_MimeFile
26*/
27require_once 'Zend/Gdata/MimeFile.php';
28
29/**
30* @see Zend_Gdata_MimeBodyString
31*/
32require_once 'Zend/Gdata/MimeBodyString.php';
33
34
35/**
36 * A streaming Media MIME class that allows for buffered read operations.
37 *
38 * @category   Zend
39 * @package    Zend_Gdata
40 * @subpackage Gdata
41 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
42 * @license    http://framework.zend.com/license/new-bsd     New BSD License
43 */
44class Zend_Gdata_MediaMimeStream
45{
46
47    /**
48     * A valid MIME boundary.
49     *
50     * @var string
51     */
52    protected $_boundaryString = null;
53
54    /**
55     * A handle to the file that is part of the message.
56     *
57     * @var resource
58     */
59    protected $_fileHandle = null;
60
61    /**
62     * The current part being read from.
63     * @var integer
64     */
65    protected $_currentPart = 0;
66
67    /**
68     * The size of the MIME message.
69     * @var integer
70     */
71    protected $_totalSize = 0;
72
73    /**
74     * An array of all the parts to be sent. Array members are either a
75     * MimeFile or a MimeBodyString object.
76     * @var array
77     */
78    protected $_parts = null;
79
80    /**
81     * Create a new MimeMediaStream object.
82     *
83     * @param string $xmlString The string corresponding to the XML section
84     *               of the message, typically an atom entry or feed.
85     * @param string $filePath The path to the file that constitutes the binary
86     *               part of the message.
87     * @param string $fileContentType The valid internet media type of the file.
88     * @throws Zend_Gdata_App_IOException If the file cannot be read or does
89     *         not exist. Also if mbstring.func_overload has been set > 1.
90     */
91    public function __construct($xmlString = null, $filePath = null,
92        $fileContentType = null)
93    {
94        if (!file_exists($filePath) || !is_readable($filePath)) {
95            require_once 'Zend/Gdata/App/IOException.php';
96            throw new Zend_Gdata_App_IOException('File to be uploaded at ' .
97                $filePath . ' does not exist or is not readable.');
98        }
99
100        $this->_fileHandle = fopen($filePath, 'rb', TRUE);
101        $this->_boundaryString = '=_' . md5(microtime(1) . rand(1,20));
102        $entry = $this->wrapEntry($xmlString, $fileContentType);
103        $closingBoundary = new Zend_Gdata_MimeBodyString("\r\n--{$this->_boundaryString}--\r\n");
104        $file = new Zend_Gdata_MimeFile($this->_fileHandle);
105        $this->_parts = array($entry, $file, $closingBoundary);
106
107        $fileSize = filesize($filePath);
108        $this->_totalSize = $entry->getSize() + $fileSize
109          + $closingBoundary->getSize();
110
111    }
112
113    /**
114     * Sandwiches the entry body into a MIME message
115     *
116     * @return void
117     */
118    private function wrapEntry($entry, $fileMimeType)
119    {
120        $wrappedEntry = "--{$this->_boundaryString}\r\n";
121        $wrappedEntry .= "Content-Type: application/atom+xml\r\n\r\n";
122        $wrappedEntry .= $entry;
123        $wrappedEntry .= "\r\n--{$this->_boundaryString}\r\n";
124        $wrappedEntry .= "Content-Type: $fileMimeType\r\n\r\n";
125        return new Zend_Gdata_MimeBodyString($wrappedEntry);
126    }
127
128    /**
129     * Read a specific chunk of the the MIME multipart message.
130     *
131     * @param integer $bufferSize The size of the chunk that is to be read,
132     *                            must be lower than MAX_BUFFER_SIZE.
133     * @return string A corresponding piece of the message. This could be
134     *                binary or regular text.
135     */
136    public function read($bytesRequested)
137    {
138        if($this->_currentPart >= count($this->_parts)) {
139          return FALSE;
140        }
141
142        $activePart = $this->_parts[$this->_currentPart];
143        $buffer = $activePart->read($bytesRequested);
144
145        while(strlen($buffer) < $bytesRequested) {
146          $this->_currentPart += 1;
147          $nextBuffer = $this->read($bytesRequested - strlen($buffer));
148          if($nextBuffer === FALSE) {
149            break;
150          }
151          $buffer .= $nextBuffer;
152        }
153
154        return $buffer;
155    }
156
157    /**
158     * Return the total size of the mime message.
159     *
160     * @return integer Total size of the message to be sent.
161     */
162    public function getTotalSize()
163    {
164        return $this->_totalSize;
165    }
166
167    /**
168     * Close the internal file that we are streaming to the socket.
169     *
170     * @return void
171     */
172    public function closeFileHandle()
173    {
174        if ($this->_fileHandle !== null) {
175            fclose($this->_fileHandle);
176        }
177    }
178
179    /**
180     * Return a Content-type header that includes the current boundary string.
181     *
182     * @return string A valid HTTP Content-Type header.
183     */
184    public function getContentType()
185    {
186        return 'multipart/related;boundary="' .
187            $this->_boundaryString . '"' . "\r\n";
188    }
189
190}
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