summaryrefslogtreecommitdiff
path: root/includes/api/ApiFormatWddx.php
blob: ec3dc2d9765e271257b574fca4128f28a78206c5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
<?php
/**
 *
 *
 * Created on Oct 22, 2006
 *
 * Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com"
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 */

/**
 * API WDDX output formatter
 * @deprecated since 1.24
 * @ingroup API
 */
class ApiFormatWddx extends ApiFormatBase {

	public function getMimeType() {
		return 'text/xml';
	}

	public function execute() {
		$this->markDeprecated();

		if ( !$this->getIsHtml() && !static::useSlowPrinter() ) {
			$this->printText( wddx_serialize_value( $this->getResultData() ) );
		} else {
			// Don't do newlines and indentation if we weren't asked
			// for pretty output
			$nl = ( $this->getIsHtml() ? "\n" : '' );
			$indstr = ' ';
			$this->printText( "<?xml version=\"1.0\"?>$nl" );
			$this->printText( "<wddxPacket version=\"1.0\">$nl" );
			$this->printText( "$indstr<header/>$nl" );
			$this->printText( "$indstr<data>$nl" );
			$this->slowWddxPrinter( $this->getResultData(), 4 );
			$this->printText( "$indstr</data>$nl" );
			$this->printText( "</wddxPacket>$nl" );
		}
	}

	public static function useSlowPrinter() {
		if ( !function_exists( 'wddx_serialize_value' ) ) {
			return true;
		}

		// Some versions of PHP have a broken wddx_serialize_value, see
		// PHP bug 45314. Test encoding an affected character (U+00A0)
		// to avoid this.
		$expected =
			"<wddxPacket version='1.0'><header/><data><string>\xc2\xa0</string></data></wddxPacket>";
		if ( wddx_serialize_value( "\xc2\xa0" ) !== $expected ) {
			return true;
		}

		// Some versions of HHVM don't correctly encode ampersands.
		$expected =
			"<wddxPacket version='1.0'><header/><data><string>&amp;</string></data></wddxPacket>";
		if ( wddx_serialize_value( '&' ) !== $expected ) {
			return true;
		}

		// Some versions of HHVM don't correctly encode empty arrays as subvalues.
		$expected =
			"<wddxPacket version='1.0'><header/><data><array length='1'><array length='0'></array></array></data></wddxPacket>";
		if ( wddx_serialize_value( array( array() ) ) !== $expected ) {
			return true;
		}

		// Some versions of HHVM don't correctly encode associative arrays with numeric keys.
		$expected =
			"<wddxPacket version='1.0'><header/><data><struct><var name='2'><number>1</number></var></struct></data></wddxPacket>";
		if ( wddx_serialize_value( array( 2 => 1 ) ) !== $expected ) {
			return true;
		}

		return false;
	}

	/**
	 * Recursively go through the object and output its data in WDDX format.
	 * @param mixed $elemValue
	 * @param int $indent
	 */
	function slowWddxPrinter( $elemValue, $indent = 0 ) {
		$indstr = ( $this->getIsHtml() ? str_repeat( ' ', $indent ) : '' );
		$indstr2 = ( $this->getIsHtml() ? str_repeat( ' ', $indent + 2 ) : '' );
		$nl = ( $this->getIsHtml() ? "\n" : '' );
		if ( is_array( $elemValue ) ) {
			// Check whether we've got an associative array (<struct>)
			// or a regular array (<array>)
			$cnt = count( $elemValue );
			if ( $cnt == 0 || array_keys( $elemValue ) === range( 0, $cnt - 1 ) ) {
				// Regular array
				$this->printText( $indstr . Xml::element( 'array', array(
					'length' => $cnt ), null ) . $nl );
				foreach ( $elemValue as $subElemValue ) {
					$this->slowWddxPrinter( $subElemValue, $indent + 2 );
				}
				$this->printText( "$indstr</array>$nl" );
			} else {
				// Associative array (<struct>)
				$this->printText( "$indstr<struct>$nl" );
				foreach ( $elemValue as $subElemName => $subElemValue ) {
					$this->printText( $indstr2 . Xml::element( 'var', array(
						'name' => $subElemName
					), null ) . $nl );
					$this->slowWddxPrinter( $subElemValue, $indent + 4 );
					$this->printText( "$indstr2</var>$nl" );
				}
				$this->printText( "$indstr</struct>$nl" );
			}
		} elseif ( is_int( $elemValue ) || is_float( $elemValue ) ) {
			$this->printText( $indstr . Xml::element( 'number', null, $elemValue ) . $nl );
		} elseif ( is_string( $elemValue ) ) {
			$this->printText( $indstr . Xml::element( 'string', null, $elemValue ) . $nl );
		} elseif ( is_bool( $elemValue ) ) {
			$this->printText( $indstr . Xml::element( 'boolean',
				array( 'value' => $elemValue ? 'true' : 'false' ) ) . $nl
			);
		} else {
			ApiBase::dieDebug( __METHOD__, 'Unknown type ' . gettype( $elemValue ) );
		}
	}

	public function getDescription() {
		return 'DEPRECATED! Output data in WDDX format' . parent::getDescription();
	}
}