<?php
-
/*
* Created on Sep 19, 2006
*
* API for MediaWiki 1.8+
*
- * Copyright (C) 2006 Yuri Astrakhan <FirstnameLastname@gmail.com>
+ * Copyright (C) 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
require_once ('ApiBase.php');
}
+/**
+ * This is the abstract base class for API formatters.
+ *
+ * @ingroup API
+ */
abstract class ApiFormatBase extends ApiBase {
- private $mIsHtml, $mFormat;
+ private $mIsHtml, $mFormat, $mUnescapeAmps, $mHelp, $mCleared;
+ private $mBufferResult = false, $mBuffer;
/**
- * Constructor
- */
+ * Constructor
+ * If $format ends with 'fm', pretty-print the output in HTML.
+ * @param $main ApiMain
+ * @param $format string Format name
+ */
public function __construct($main, $format) {
parent :: __construct($main, $format);
else
$this->mFormat = $format;
$this->mFormat = strtoupper($this->mFormat);
+ $this->mCleared = false;
}
/**
*/
public abstract function getMimeType();
+ /**
+ * Whether this formatter needs raw data such as _element tags
+ * @return bool
+ */
public function getNeedsRawData() {
return false;
}
/**
- * Returns true when an HTML filtering printer should be used.
- * The default implementation assumes that formats ending with 'fm'
- * should be formatted in HTML.
+ * Get the internal format name
+ * @return string
+ */
+ public function getFormat() {
+ return $this->mFormat;
+ }
+
+ /**
+ * Specify whether or not sequences like &quot; should be unescaped
+ * to " . This should only be set to true for the help message
+ * when rendered in the default (xmlfm) format. This is a temporary
+ * special-case fix that should be removed once the help has been
+ * reworked to use a fully HTML interface.
+ *
+ * @param $b bool Whether or not ampersands should be escaped.
+ */
+ public function setUnescapeAmps ( $b ) {
+ $this->mUnescapeAmps = $b;
+ }
+
+ /**
+ * Returns true when the HTML pretty-printer should be used.
+ * The default implementation assumes that formats ending with 'fm'
+ * should be formatted in HTML.
+ * @return bool
*/
public function getIsHtml() {
return $this->mIsHtml;
}
+
+ /**
+ * Whether this formatter can format the help message in a nice way.
+ * By default, this returns the same as getIsHtml().
+ * When action=help is set explicitly, the help will always be shown
+ * @return bool
+ */
+ public function getWantsHelp() {
+ return $this->getIsHtml();
+ }
/**
- * Initialize the printer function and prepares the output headers, etc.
+ * Initialize the printer function and prepare the output headers, etc.
* This method must be the first outputing method during execution.
* A help screen's header is printed for the HTML-based output
+ * @param $isError bool Whether an error message is printed
*/
function initPrinter($isError) {
$isHtml = $this->getIsHtml();
$mime = $isHtml ? 'text/html' : $this->getMimeType();
+ $script = wfScript( 'api' );
// Some printers (ex. Feed) do their own header settings,
// in which case $mime will be set to null
if (is_null($mime))
return; // skip any initialization
- header("Content-Type: $mime; charset=utf-8;");
+ header("Content-Type: $mime; charset=utf-8");
if ($isHtml) {
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
- <title>MediaWiki API</title>
+<?php if ($this->mUnescapeAmps) {
+?> <title>MediaWiki API</title>
+<?php } else {
+?> <title>MediaWiki API Result</title>
+<?php } ?>
</head>
<body>
<?php
- if (!$isError) {
+ if( !$isError ) {
?>
<br/>
<small>
-You are looking at the HTML representation of the <?=$this->mFormat?> format.<br/>
+You are looking at the HTML representation of the <?php echo( $this->mFormat ); ?> format.<br/>
HTML is good for debugging, but probably is not suitable for your application.<br/>
-Please see "format" parameter documentation at the <a href='api.php'>API help</a>
-for more information.
+See <a href='http://www.mediawiki.org/wiki/API'>complete documentation</a>, or
+<a href='<?php echo( $script ); ?>'>API help</a> for more information.
</small>
<?php
}
}
+ /**
+ * The main format printing function. Call it to output the result
+ * string to the user. This function will automatically output HTML
+ * when format name ends in 'fm'.
+ * @param $text string
+ */
public function printText($text) {
- if ($this->getIsHtml())
+ if ($this->mBufferResult) {
+ $this->mBuffer = $text;
+ } elseif ($this->getIsHtml()) {
echo $this->formatHTML($text);
- else
+ } else {
+ // For non-HTML output, clear all errors that might have been
+ // displayed if display_errors=On
+ // Do this only once, of course
+ if(!$this->mCleared)
+ {
+ ob_clean();
+ $this->mCleared = true;
+ }
echo $text;
+ }
+ }
+
+ /**
+ * Get the contents of the buffer.
+ */
+ public function getBuffer() {
+ return $this->mBuffer;
+ }
+ /**
+ * Set the flag to buffer the result instead of printing it.
+ */
+ public function setBufferResult( $value ) {
+ $this->mBufferResult = $value;
+ }
+
+ /**
+ * Sets whether the pretty-printer should format *bold* and $italics$
+ * @param $help bool
+ */
+ public function setHelp( $help = true ) {
+ $this->mHelp = true;
}
/**
- * Prety-print various elements in HTML format, such as xml tags and URLs.
- * This method also replaces any '<' with <
+ * Prety-print various elements in HTML format, such as xml tags and
+ * URLs. This method also escapes characters like <
+ * @param $text string
+ * @return string
*/
protected function formatHTML($text) {
- // encode all tags as safe blue strings
- $text = ereg_replace('\<([^>]+)\>', '<span style="color:blue;"><\1></span>', $text);
+ global $wgUrlProtocols;
+
+ // Escape everything first for full coverage
+ $text = htmlspecialchars($text);
+
+ // encode all comments or tags as safe blue strings
+ $text = preg_replace('/\<(!--.*?--|.*?)\>/', '<span style="color:blue;"><\1></span>', $text);
// identify URLs
- $protos = "http|https|ftp|gopher";
- $text = ereg_replace("($protos)://[^ '\"()<\n]+", '<a href="\\0">\\0</a>', $text);
+ $protos = implode("|", $wgUrlProtocols);
+ # This regex hacks around bug 13218 (" included in the URL)
+ $text = preg_replace("#(($protos).*?)(")?([ \\'\"<>\n]|<|>|")#", '<a href="\\1">\\1</a>\\3\\4', $text);
// identify requests to api.php
- $text = ereg_replace("api\\.php\\?[^ ()<\n\t]+", '<a href="\\0">\\0</a>', $text);
- // make strings inside * bold
- $text = ereg_replace("\\*[^<>\n]+\\*", '<b>\\0</b>', $text);
- // make strings inside $ italic
- $text = ereg_replace("\\$[^<>\n]+\\$", '<b><i>\\0</i></b>', $text);
+ $text = preg_replace("#api\\.php\\?[^ \\()<\n\t]+#", '<a href="\\0">\\0</a>', $text);
+ if( $this->mHelp ) {
+ // make strings inside * bold
+ $text = preg_replace("#\\*[^<>\n]+\\*#", '<b>\\0</b>', $text);
+ // make strings inside $ italic
+ $text = preg_replace("#\\$[^<>\n]+\\$#", '<b><i>\\0</i></b>', $text);
+ }
+
+ /* Temporary fix for bad links in help messages. As a special case,
+ * XML-escaped metachars are de-escaped one level in the help message
+ * for legibility. Should be removed once we have completed a fully-html
+ * version of the help message. */
+ if ( $this->mUnescapeAmps )
+ $text = preg_replace( '/&(amp|quot|lt|gt);/', '&\1;', $text );
return $text;
}
- /**
- * Returns usage examples for this format.
- */
protected function getExamples() {
return 'api.php?action=query&meta=siteinfo&siprop=namespaces&format=' . $this->getModuleName();
}
- protected function getDescription() {
+ public function getDescription() {
return $this->getIsHtml() ? ' (pretty-print in HTML)' : '';
}
}
/**
- * This printer is used to wrap an instance of the Feed class
+ * This printer is used to wrap an instance of the Feed class
+ * @ingroup API
*/
class ApiFormatFeedWrapper extends ApiFormatBase {
}
/**
- * Call this method to initialize output data
+ * Call this method to initialize output data. See execute()
+ * @param $result ApiResult
+ * @param $feed object an instance of one of the $wgFeedClasses classes
+ * @param $feedItems array of FeedItem objects
*/
public static function setResult($result, $feed, $feedItems) {
// Store output in the Result data.
// This way we can check during execution if any error has occured
- $data = & $result->getData();
- $data['_feed'] = $feed;
- $data['_feeditems'] = $feedItems;
+ // Disable size checking for this because we can't continue
+ // cleanly; size checking would cause more problems than it'd
+ // solve
+ $result->disableSizeCheck();
+ $result->addValue(null, '_feed', $feed);
+ $result->addValue(null, '_feeditems', $feedItems);
+ $result->enableSizeCheck();
}
/**
return true;
}
+ /**
+ * This class expects the result data to be in a custom format set by self::setResult()
+ * $result['_feed'] - an instance of one of the $wgFeedClasses classes
+ * $result['_feeditems'] - an array of FeedItem instances
+ */
public function execute() {
$data = $this->getResultData();
if (isset ($data['_feed']) && isset ($data['_feeditems'])) {
$feed->outItem($item);
$feed->outFooter();
} else {
- // Error has occured, print something usefull
- // TODO: make this error more informative using ApiBase :: dieDebug() or similar
- wfHttpError(500, 'Internal Server Error', '');
+ // Error has occured, print something useful
+ ApiBase::dieDebug( __METHOD__, 'Invalid feed class/item' );
}
}
-
+
public function getVersion() {
return __CLASS__ . ': $Id$';
}
-}
-?>
+}
\ No newline at end of file