abstract class ApiFormatBase extends ApiBase {
private $mIsHtml, $mFormat, $mUnescapeAmps, $mHelp, $mCleared;
+ private $mBufferResult = false, $mBuffer;
/**
- * Create a new instance of the formatter.
- * If the format name ends with 'fm', wrap its output in the proper HTML.
- */
+ * 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);
public abstract function getMimeType();
/**
- * 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.
+ * Whether this formatter needs raw data such as _element tags
+ * @return bool
*/
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.
+ * Get the internal format name
+ * @return string
+ */
+ public function getFormat() {
+ return $this->mFormat;
+ }
+
+ /**
+ * Specify whether or not sequences like " 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 boolean Whether or not ampersands should be escaped.
+ * @param $b bool Whether or not ampersands should be escaped.
*/
public function setUnescapeAmps ( $b ) {
$this->mUnescapeAmps = $b;
}
/**
- * Returns true when an HTML filtering printer should be used.
+ * 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();
}
/**
- * 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'.
+ * 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
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;
+ }
/**
- * Says pretty-printer that it should use *bold* and $italics$ formatting
- */
+ * 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) {
+ 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";
+ $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);
+ $text = preg_replace("#(($protos).*?)(")?([ \\'\"<>\n]|<|>|")#", '<a href="\\1">\\1</a>\\3\\4', $text);
// identify requests to api.php
$text = preg_replace("#api\\.php\\?[^ \\()<\n\t]+#", '<a href="\\0">\\0</a>', $text);
if( $this->mHelp ) {
// make strings inside * bold
- $text = ereg_replace("\\*[^<>\n]+\\*", '<b>\\0</b>', $text);
+ $text = preg_replace("#\\*[^<>\n]+\\*#", '<b>\\0</b>', $text);
// make strings inside $ italic
- $text = ereg_replace("\\$[^<>\n]+\\$", '<b><i>\\0</i></b>', $text);
+ $text = preg_replace("#\\$[^<>\n]+\\$#", '<b><i>\\0</i></b>', $text);
}
/* Temporary fix for bad links in help messages. As a special case,
return $text;
}
- /**
- * Returns usage examples for this format.
- */
protected function getExamples() {
return 'api.php?action=query&meta=siteinfo&siprop=namespaces&format=' . $this->getModuleName();
}
}
/**
- * Call this method to initialize output data. See self::execute()
+ * 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();
}
/**
/**
* 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
+ * $result['_feed'] - an instance of one of the $wgFeedClasses classes
+ * $result['_feeditems'] - an array of FeedItem instances
*/
public function execute() {
$data = $this->getResultData();
$feed->outItem($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__ . ': $Id$';
}
-}
+}
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