<?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
if (!defined('MEDIAWIKI')) {
// Eclipse helper - will be ignored in production
- require_once ("ApiBase.php");
+ require_once ('ApiBase.php');
}
+/**
+ * This is the abstract base class for API formatters.
+ *
+ * @addtogroup API
+ */
abstract class ApiFormatBase extends ApiBase {
- private $mIsHtml, $mFormat, $mOriginalFormat;
+ private $mIsHtml, $mFormat, $mUnescapeAmps;
/**
- * Constructor
+ * Create a new instance of the formatter.
+ * If the format name ends with 'fm', wrap its output in the proper HTML.
*/
public function __construct($main, $format) {
- parent :: __construct($main);
+ parent :: __construct($main, $format);
- $this->mOriginalFormat = $format;
$this->mIsHtml = (substr($format, -2, 2) === 'fm'); // ends with 'fm'
if ($this->mIsHtml)
$this->mFormat = substr($format, 0, -2); // remove ending 'fm'
/**
* Overriding class returns the mime type that should be sent to the client.
- * This method is not called if GetIsHtml() returns true.
+ * This method is not called if getIsHtml() returns true.
* @return string
*/
- public abstract function GetMimeType();
+ public abstract function getMimeType();
- public function GetNeedsRawData() {
+ /**
+ * If formatter outputs data results as is, the results must first be sanitized.
+ * An XML formatter on the other hand uses special tags, such as "_element" for special handling,
+ * and thus needs to override this function to return true.
+ */
+ public function getNeedsRawData() {
return false;
}
+ /**
+ * Specify whether or not ampersands should be escaped to '&' when rendering. 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 boolean Whether or not ampersands should be escaped.
+ */
+ public function setUnescapeAmps ( $b ) {
+ $this->mUnescapeAmps = $b;
+ }
+
/**
* Returns true when an HTML filtering printer should be used.
* The default implementation assumes that formats ending with 'fm'
* should be formatted in HTML.
*/
- public function GetIsHtml() {
+ public function getIsHtml() {
return $this->mIsHtml;
}
* This method must be the first outputing method during execution.
* A help screen's header is printed for the HTML-based output
*/
- function InitPrinter($isError) {
- $isHtml = $this->GetIsHtml();
- $mime = $isHtml ? 'text/html' : $this->GetMimeType();
- header("Content-Type: $mime; charset=utf-8;");
+ function initPrinter($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: $mime; charset=utf-8");
if ($isHtml) {
?>
- <html>
- <head>
- <title>MediaWiki API</title>
- </head>
- <body>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html>
+<head>
+ <title>MediaWiki API</title>
+</head>
+<body>
<?php
- if (!$isError) {
+ if( !$isError ) {
?>
- <br/>
- <small>
- This result is being shown in <?=$this->mFormat?> format,
- which might not be suitable for your application.<br/>
- See <a href="api.php">API help</a> for more information.<br/>
- </small>
+<br/>
+<small>
+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/>
+See <a href='http://www.mediawiki.org/wiki/API'>complete documentation</a>, or
+<a href='<?php echo( $script ); ?>'>API help</a> for more information.
+</small>
<?php
}
?>
- <pre>
+<pre>
<?php
/**
* Finish printing. Closes HTML tags.
*/
- public function ClosePrinter() {
- if ($this->GetIsHtml()) {
+ public function closePrinter() {
+ if ($this->getIsHtml()) {
?>
- </pre>
- </body>
+
+</pre>
+</body>
+</html>
<?php
}
}
- public function PrintText($text) {
- if ($this->GetIsHtml())
- echo $this->FormatHTML($text);
+ /**
+ * 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'.
+ */
+ public function printText($text) {
+ if ($this->getIsHtml())
+ echo $this->formatHTML($text);
else
echo $text;
}
/**
* Prety-print various elements in HTML format, such as xml tags and URLs.
- * This method also replaces any "<" with <
+ * This method also replaces any '<' with <
*/
- protected function FormatHTML($text) {
- // encode all tags as safe blue strings
- $text = ereg_replace('\<([^>]+)\>', '<font color=blue><\1></font>', $text);
+ protected function formatHTML($text) {
+ // 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
- $text = ereg_replace("[a-zA-Z]+://[^ '()<\n]+", '<a href="\\0">\\0</a>', $text);
+ $protos = "http|https|ftp|gopher";
+ $text = ereg_replace("($protos)://[^ \\'\"()<\n]+", '<a href="\\0">\\0</a>', $text);
// identify requests to api.php
- $text = ereg_replace("api\\.php\\?[^ ()<\n\t]+", '<a href="\\0">\\0</a>', $text);
+ $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);
+
+ /* 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&si=namespaces&format=' . $this->mOriginalFormat;
+ protected function getExamples() {
+ return 'api.php?action=query&meta=siteinfo&siprop=namespaces&format=' . $this->getModuleName();
+ }
+
+ protected function getDescription() {
+ return $this->getIsHtml() ? ' (pretty-print in HTML)' : '';
+ }
+
+ public static function getBaseVersion() {
+ return __CLASS__ . ': $Id$';
+ }
+}
+
+/**
+ * This printer is used to wrap an instance of the Feed class
+ * @addtogroup API
+ */
+class ApiFormatFeedWrapper extends ApiFormatBase {
+
+ public function __construct($main) {
+ parent :: __construct($main, 'feed');
+ }
+
+ /**
+ * Call this method to initialize output data. See self::execute()
+ */
+ 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;
+ }
+
+ /**
+ * Feed does its own headers
+ */
+ public function getMimeType() {
+ return null;
+ }
+
+ /**
+ * Optimization - no need to sanitize data that will not be needed
+ */
+ public function getNeedsRawData() {
+ 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 = $data['_feed'];
+ $items = $data['_feeditems'];
+
+ $feed->outHeader();
+ foreach ($items as & $item)
+ $feed->outItem($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', '');
+ }
+ }
+
+ public function getVersion() {
+ return __CLASS__ . ': $Id$';
}
}
-?>
\ No newline at end of file