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Diffstat (limited to 'extlib/HTTP/Request2/MultipartBody.php')
| -rw-r--r-- | extlib/HTTP/Request2/MultipartBody.php | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/extlib/HTTP/Request2/MultipartBody.php b/extlib/HTTP/Request2/MultipartBody.php new file mode 100644 index 000000000..d8afd8344 --- /dev/null +++ b/extlib/HTTP/Request2/MultipartBody.php @@ -0,0 +1,274 @@ +<?php
+/**
+ * Helper class for building multipart/form-data request body
+ *
+ * PHP version 5
+ *
+ * LICENSE:
+ *
+ * Copyright (c) 2008, 2009, Alexey Borzov <avb@php.net>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * The names of the authors may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category HTTP
+ * @package HTTP_Request2
+ * @author Alexey Borzov <avb@php.net>
+ * @license http://opensource.org/licenses/bsd-license.php New BSD License
+ * @version CVS: $Id: MultipartBody.php 287306 2009-08-14 15:22:52Z avb $
+ * @link http://pear.php.net/package/HTTP_Request2
+ */
+
+/**
+ * Class for building multipart/form-data request body
+ *
+ * The class helps to reduce memory consumption by streaming large file uploads
+ * from disk, it also allows monitoring of upload progress (see request #7630)
+ *
+ * @category HTTP
+ * @package HTTP_Request2
+ * @author Alexey Borzov <avb@php.net>
+ * @version Release: 0.4.1
+ * @link http://tools.ietf.org/html/rfc1867
+ */
+class HTTP_Request2_MultipartBody
+{
+ /**
+ * MIME boundary
+ * @var string
+ */
+ private $_boundary;
+
+ /**
+ * Form parameters added via {@link HTTP_Request2::addPostParameter()}
+ * @var array
+ */
+ private $_params = array();
+
+ /**
+ * File uploads added via {@link HTTP_Request2::addUpload()}
+ * @var array
+ */
+ private $_uploads = array();
+
+ /**
+ * Header for parts with parameters
+ * @var string
+ */
+ private $_headerParam = "--%s\r\nContent-Disposition: form-data; name=\"%s\"\r\n\r\n";
+
+ /**
+ * Header for parts with uploads
+ * @var string
+ */
+ private $_headerUpload = "--%s\r\nContent-Disposition: form-data; name=\"%s\"; filename=\"%s\"\r\nContent-Type: %s\r\n\r\n";
+
+ /**
+ * Current position in parameter and upload arrays
+ *
+ * First number is index of "current" part, second number is position within
+ * "current" part
+ *
+ * @var array
+ */
+ private $_pos = array(0, 0);
+
+
+ /**
+ * Constructor. Sets the arrays with POST data.
+ *
+ * @param array values of form fields set via {@link HTTP_Request2::addPostParameter()}
+ * @param array file uploads set via {@link HTTP_Request2::addUpload()}
+ * @param bool whether to append brackets to array variable names
+ */
+ public function __construct(array $params, array $uploads, $useBrackets = true)
+ {
+ $this->_params = self::_flattenArray('', $params, $useBrackets);
+ foreach ($uploads as $fieldName => $f) {
+ if (!is_array($f['fp'])) {
+ $this->_uploads[] = $f + array('name' => $fieldName);
+ } else {
+ for ($i = 0; $i < count($f['fp']); $i++) {
+ $upload = array(
+ 'name' => ($useBrackets? $fieldName . '[' . $i . ']': $fieldName)
+ );
+ foreach (array('fp', 'filename', 'size', 'type') as $key) {
+ $upload[$key] = $f[$key][$i];
+ }
+ $this->_uploads[] = $upload;
+ }
+ }
+ }
+ }
+
+ /**
+ * Returns the length of the body to use in Content-Length header
+ *
+ * @return integer
+ */
+ public function getLength()
+ {
+ $boundaryLength = strlen($this->getBoundary());
+ $headerParamLength = strlen($this->_headerParam) - 4 + $boundaryLength;
+ $headerUploadLength = strlen($this->_headerUpload) - 8 + $boundaryLength;
+ $length = $boundaryLength + 6;
+ foreach ($this->_params as $p) {
+ $length += $headerParamLength + strlen($p[0]) + strlen($p[1]) + 2;
+ }
+ foreach ($this->_uploads as $u) {
+ $length += $headerUploadLength + strlen($u['name']) + strlen($u['type']) +
+ strlen($u['filename']) + $u['size'] + 2;
+ }
+ return $length;
+ }
+
+ /**
+ * Returns the boundary to use in Content-Type header
+ *
+ * @return string
+ */
+ public function getBoundary()
+ {
+ if (empty($this->_boundary)) {
+ $this->_boundary = '--' . md5('PEAR-HTTP_Request2-' . microtime());
+ }
+ return $this->_boundary;
+ }
+
+ /**
+ * Returns next chunk of request body
+ *
+ * @param integer Amount of bytes to read
+ * @return string Up to $length bytes of data, empty string if at end
+ */
+ public function read($length)
+ {
+ $ret = '';
+ $boundary = $this->getBoundary();
+ $paramCount = count($this->_params);
+ $uploadCount = count($this->_uploads);
+ while ($length > 0 && $this->_pos[0] <= $paramCount + $uploadCount) {
+ $oldLength = $length;
+ if ($this->_pos[0] < $paramCount) {
+ $param = sprintf($this->_headerParam, $boundary,
+ $this->_params[$this->_pos[0]][0]) .
+ $this->_params[$this->_pos[0]][1] . "\r\n";
+ $ret .= substr($param, $this->_pos[1], $length);
+ $length -= min(strlen($param) - $this->_pos[1], $length);
+
+ } elseif ($this->_pos[0] < $paramCount + $uploadCount) {
+ $pos = $this->_pos[0] - $paramCount;
+ $header = sprintf($this->_headerUpload, $boundary,
+ $this->_uploads[$pos]['name'],
+ $this->_uploads[$pos]['filename'],
+ $this->_uploads[$pos]['type']);
+ if ($this->_pos[1] < strlen($header)) {
+ $ret .= substr($header, $this->_pos[1], $length);
+ $length -= min(strlen($header) - $this->_pos[1], $length);
+ }
+ $filePos = max(0, $this->_pos[1] - strlen($header));
+ if ($length > 0 && $filePos < $this->_uploads[$pos]['size']) {
+ $ret .= fread($this->_uploads[$pos]['fp'], $length);
+ $length -= min($length, $this->_uploads[$pos]['size'] - $filePos);
+ }
+ if ($length > 0) {
+ $start = $this->_pos[1] + ($oldLength - $length) -
+ strlen($header) - $this->_uploads[$pos]['size'];
+ $ret .= substr("\r\n", $start, $length);
+ $length -= min(2 - $start, $length);
+ }
+
+ } else {
+ $closing = '--' . $boundary . "--\r\n";
+ $ret .= substr($closing, $this->_pos[1], $length);
+ $length -= min(strlen($closing) - $this->_pos[1], $length);
+ }
+ if ($length > 0) {
+ $this->_pos = array($this->_pos[0] + 1, 0);
+ } else {
+ $this->_pos[1] += $oldLength;
+ }
+ }
+ return $ret;
+ }
+
+ /**
+ * Sets the current position to the start of the body
+ *
+ * This allows reusing the same body in another request
+ */
+ public function rewind()
+ {
+ $this->_pos = array(0, 0);
+ foreach ($this->_uploads as $u) {
+ rewind($u['fp']);
+ }
+ }
+
+ /**
+ * Returns the body as string
+ *
+ * Note that it reads all file uploads into memory so it is a good idea not
+ * to use this method with large file uploads and rely on read() instead.
+ *
+ * @return string
+ */
+ public function __toString()
+ {
+ $this->rewind();
+ return $this->read($this->getLength());
+ }
+
+
+ /**
+ * Helper function to change the (probably multidimensional) associative array
+ * into the simple one.
+ *
+ * @param string name for item
+ * @param mixed item's values
+ * @param bool whether to append [] to array variables' names
+ * @return array array with the following items: array('item name', 'item value');
+ */
+ private static function _flattenArray($name, $values, $useBrackets)
+ {
+ if (!is_array($values)) {
+ return array(array($name, $values));
+ } else {
+ $ret = array();
+ foreach ($values as $k => $v) {
+ if (empty($name)) {
+ $newName = $k;
+ } elseif ($useBrackets) {
+ $newName = $name . '[' . $k . ']';
+ } else {
+ $newName = $name;
+ }
+ $ret = array_merge($ret, self::_flattenArray($newName, $v, $useBrackets));
+ }
+ return $ret;
+ }
+ }
+}
+?>
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