// Initialise common code
require (dirname(__FILE__) . '/includes/WebStart.php');
-/**
- * When no format parameter is given, this format will be used
- */
-define('API_DEFAULT_FORMAT', 'xmlfm');
-
-/**
- * Location of all api-related files (must end with a slash '/')
- */
-define('API_DIR', 'includes/api/');
-
-/**
- * List of classes and containing files.
- */
-$wgApiAutoloadClasses = array (
-
- 'ApiMain' => API_DIR . 'ApiMain.php',
-
- // Utility classes
- 'ApiBase' => API_DIR . 'ApiBase.php',
- 'ApiQueryBase' => API_DIR . 'ApiQueryBase.php',
- 'ApiResult' => API_DIR . 'ApiResult.php',
- 'ApiPageSet' => API_DIR . 'ApiPageSet.php',
-
- // Formats
- 'ApiFormatBase' => API_DIR . 'ApiFormatBase.php',
- 'ApiFormatYaml' => API_DIR . 'ApiFormatYaml.php',
- 'ApiFormatXml' => API_DIR . 'ApiFormatXml.php',
- 'ApiFormatJson' => API_DIR . 'ApiFormatJson.php',
-
- // Modules (action=...) - should match the $apiModules list
- 'ApiHelp' => API_DIR . 'ApiHelp.php',
- 'ApiLogin' => API_DIR . 'ApiLogin.php',
- 'ApiQuery' => API_DIR . 'ApiQuery.php',
-
- // Query items (meta/prop/list=...)
- 'ApiQuerySiteinfo' => API_DIR . 'ApiQuerySiteinfo.php',
- 'ApiQueryInfo' => API_DIR . 'ApiQueryInfo.php',
- 'ApiQueryRevisions' => API_DIR . 'ApiQueryRevisions.php',
- 'ApiQueryAllpages' => API_DIR . 'ApiQueryAllpages.php',
- 'ApiQueryWatchlist' => API_DIR . 'ApiQueryWatchlist.php'
-);
-
-/**
- * List of available modules: action name => module class
- * The class must also be listed in the $wgApiAutoloadClasses array.
- */
-$wgApiModules = array (
- 'help' => 'ApiHelp',
- 'login' => 'ApiLogin',
- 'query' => 'ApiQuery'
-);
-
-/**
- * List of available formats: format name => format class
- * The class must also be listed in the $wgApiAutoloadClasses array.
- */
-$wgApiFormats = array (
- 'json' => 'ApiFormatJson',
- 'jsonfm' => 'ApiFormatJson',
- 'xml' => 'ApiFormatXml',
- 'xmlfm' => 'ApiFormatXml',
- 'yaml' => 'ApiFormatYaml',
- 'yamlfm' => 'ApiFormatYaml'
-);
-
wfProfileIn('api.php');
// Verify that the API has not been disabled
die(-1);
}
-$wgAutoloadClasses = array_merge($wgAutoloadClasses, $wgApiAutoloadClasses);
-
-$processor = new ApiMain($wgRequestTime, $wgApiModules, $wgApiFormats, $wgEnableWriteAPI);
+$processor = new ApiMain($wgRequest, $wgEnableWriteAPI);
$processor->execute();
wfProfileOut('api.php');
require_once ('ApiBase.php');
}
+
+/**
+ * This is the main API class, used for both external and internal processing.
+ */
class ApiMain extends ApiBase {
+ /**
+ * When no format parameter is given, this format will be used
+ */
+ const API_DEFAULT_FORMAT = 'xmlfm';
+
+ /**
+ * List of available modules: action name => module class
+ */
+ private static $Modules = array (
+ 'help' => 'ApiHelp',
+ 'login' => 'ApiLogin',
+ 'query' => 'ApiQuery',
+ 'opensearch' => 'ApiOpenSearch'
+ );
+
+ /**
+ * List of available formats: format name => format class
+ */
+ private static $Formats = array (
+ 'json' => 'ApiFormatJson',
+ 'jsonfm' => 'ApiFormatJson',
+ 'xml' => 'ApiFormatXml',
+ 'xmlfm' => 'ApiFormatXml',
+ 'yaml' => 'ApiFormatYaml',
+ 'yamlfm' => 'ApiFormatYaml'
+ );
+
private $mPrinter, $mModules, $mModuleNames, $mFormats, $mFormatNames;
- private $mApiStartTime, $mResult, $mShowVersions, $mEnableWrite;
+ private $mResult, $mShowVersions, $mEnableWrite, $mRequest, $mInternalMode;
/**
* Constructor
- * $apiStartTime - time of the originating call for profiling purposes
- * $modules - an array of actions (keys) and classes that handle them (values)
+ * @param $request object - if this is an instance of FauxRequest, errors are thrown and no printing occurs
+ * @param $enableWrite bool should be set to true if the api may modify data
*/
- public function __construct($apiStartTime, $modules, $formats, $enableWrite) {
+ public function __construct($request, $enableWrite = false) {
// Special handling for the main module: $parent === $this
parent :: __construct($this, 'main');
- $this->mModules = $modules;
- $this->mModuleNames = array_keys($modules);
- $this->mFormats = $formats;
- $this->mFormatNames = array_keys($formats);
- $this->mApiStartTime = $apiStartTime;
+ $this->mModules =& self::$Modules;
+ $this->mModuleNames = array_keys($this->mModules); // todo: optimize
+ $this->mFormats =& self::$Formats;
+ $this->mFormatNames = array_keys($this->mFormats); // todo: optimize
+
$this->mResult = new ApiResult($this);
$this->mShowVersions = false;
$this->mEnableWrite = $enableWrite;
- // Initialize Error handler
- set_exception_handler( array($this, 'exceptionHandler') );
+ $this->mRequest =& $request;
+
+ $this->mInternalMode = ($request instanceof FauxRequest);
}
- public function & getResult() {
- return $this->mResult;
+ public function & getRequest() {
+ return $this->mRequest;
}
- public function getShowVersions() {
- return $this->mShowVersions;
+ public function & getResult() {
+ return $this->mResult;
}
public function requestWriteMode() {
'statement is included in the site\'s LocalSettings.php file', 'readonly');
}
- protected function getAllowedParams() {
- return array (
- 'format' => array (
- ApiBase :: PARAM_DFLT => API_DEFAULT_FORMAT,
- ApiBase :: PARAM_TYPE => $this->mFormatNames
- ),
- 'action' => array (
- ApiBase :: PARAM_DFLT => 'help',
- ApiBase :: PARAM_TYPE => $this->mModuleNames
- ),
- 'version' => false
- );
- }
-
- protected function getParamDescription() {
- return array (
- 'format' => 'The format of the output',
- 'action' => 'What action you would like to perform',
- 'version' => 'When showing help, include version for each module'
- );
- }
-
public function execute() {
$this->profileIn();
+ if($this->mInternalMode)
+ $this->executeAction();
+ else
+ $this->executeActionWithErrorHandling();
+ $this->profileOut();
+ }
+
+ protected function executeActionWithErrorHandling() {
- // Experimental -- in case an error occurs during data output,
+ // In case an error occurs during data output,
// this clear the output buffer and print just the error information
ob_start();
try {
- $action = $format = $version = null;
- extract($this->extractRequestParams());
- $this->mShowVersions = $version;
-
- // Create an appropriate printer
- $this->mPrinter = new $this->mFormats[$format] ($this, $format);
-
- // Instantiate and execute module requested by the user
- $module = new $this->mModules[$action] ($this, $action);
- $module->profileIn();
- $module->execute();
- $module->profileOut();
- $this->printResult(false);
-
- } catch (UsageException $e) {
- $this->printError();
+ $this->executeAction();
+ } catch (Exception $e) {
+ //
+ // Handle any kind of exception by outputing properly formatted error message.
+ // If this fails, an unhandled exception should be thrown so that global error
+ // handler will process and log it.
+ //
+
+ // Printer may not be initialized if the extractRequestParams() fails for the main module
+ if (!isset ($this->mPrinter)) {
+ $format = self :: API_DEFAULT_FORMAT;
+ $this->mPrinter = new $this->mFormats[$format] ($this, $format);
+ }
+
+ if ($e instanceof UsageException) {
+ //
+ // User entered incorrect parameters - print usage screen
+ //
+ $httpRespCode = $e->getCode();
+ $errMessage = array (
+ 'code' => $e->getCodeString(),
+ 'info' => $e->getMessage()
+ );
+ ApiResult :: setContent($errMessage, $this->makeHelpMsg());
+
+ } else {
+ //
+ // Something is seriously wrong
+ //
+ $httpRespCode = 0;
+ $errMessage = array (
+ 'code' => 'internal_api_error',
+ 'info' => "Exception Caught: {$e->getMessage()}"
+ );
+ ApiResult :: setContent($errMessage, "\n\n{$e->getTraceAsString()}\n\n");
+ }
+
+ $headerStr = 'MediaWiki-API-Error: ' . $errMessage['code'];
+ if ($e->getCode() === 0)
+ header($headerStr, true);
+ else
+ header($headerStr, true, $e->getCode());
+
+ // Reset and print just the error message
+ ob_clean();
+ $this->mResult->Reset();
+ $this->mResult->addValue(null, 'error', $errMessage);
+ $this->printResult(true);
}
ob_end_flush();
- $this->profileOut();
}
+ /**
+ * Execute the actual module, without any error handling
+ */
+ protected function executeAction() {
+ $action = $format = $version = null;
+ extract($this->extractRequestParams());
+ $this->mShowVersions = $version;
+
+ // Instantiate the module requested by the user
+ $module = new $this->mModules[$action] ($this, $action);
+
+ if (!$this->mInternalMode) {
+ if ($module instanceof ApiFormatBase) {
+ // The requested module will print data in its own format
+ $this->mPrinter = $module;
+ } else {
+ // Create an appropriate printer
+ $this->mPrinter = new $this->mFormats[$format] ($this, $format);
+ }
+ }
+
+ // Execute
+ $module->profileIn();
+ $module->execute();
+ $module->profileOut();
+
+ if (!$this->mInternalMode) {
+ // Print result data
+ $this->printResult(false);
+ }
+ }
+
/**
* Internal printer
*/
- private function printResult($isError) {
+ protected function printResult($isError) {
$printer = $this->mPrinter;
$printer->profileIn();
$printer->initPrinter($isError);
if (!$printer->getNeedsRawData())
$this->getResult()->SanitizeData();
- $printer->execute();
+ $printer->executePrinter();
$printer->closePrinter();
$printer->profileOut();
}
-
- private function printError() {
- // Printer may not be initialized if the extractRequestParams() fails for the main module
- if (!isset ($this->mPrinter))
- $this->mPrinter = new $this->mFormats[API_DEFAULT_FORMAT] ($this, API_DEFAULT_FORMAT);
-
- // In case of an error, reset anythnig that was printed before
- ob_clean();
-
- $this->printResult(true);
+
+ protected function getAllowedParams() {
+ return array (
+ 'format' => array (
+ ApiBase :: PARAM_DFLT => ApiMain :: API_DEFAULT_FORMAT,
+ ApiBase :: PARAM_TYPE => $this->mFormatNames
+ ),
+ 'action' => array (
+ ApiBase :: PARAM_DFLT => 'help',
+ ApiBase :: PARAM_TYPE => $this->mModuleNames
+ ),
+ 'version' => false
+ );
+ }
+
+ protected function getParamDescription() {
+ return array (
+ 'format' => 'The format of the output',
+ 'action' => 'What action you would like to perform',
+ 'version' => 'When showing help, include version for each module'
+ );
}
protected function getDescription() {
);
}
- public function mainDieUsage($description, $errorCode, $httpRespCode = 0) {
- if ($httpRespCode === 0)
- header($errorCode, true);
- else
- header($errorCode, true, $httpRespCode);
-
- $this->makeErrorMessage($description, $errorCode);
-
- throw new UsageException($description, $errorCode);
- }
-
- public function makeErrorMessage($description, $errorCode, $customContent = null) {
- $this->mResult->Reset();
- $data = array (
- 'code' => $errorCode,
- 'info' => $description
- );
-
- ApiResult :: setContent($data,
- is_null($customContent) ? $this->makeHelpMsg() : $customContent);
-
- $this->mResult->addValue(null, 'error', $data);
- }
-
/**
* Override the parent to generate help messages for all available modules.
*/
return $msg;
}
-
- /**
- * Exception handler which simulates the appropriate catch() handling:
- *
- * try {
- * ...
- * } catch ( MWException $e ) {
- * dieUsage()
- * } catch ( Exception $e ) {
- * echo $e->__toString();
- * }
- *
- *
- *
- *
- * !!!!!!!!!!!!! REVIEW needed !!!!!!!!!!!!!!!!!!
- *
- * this method needs to be reviewed/cleaned up
- *
- *
- *
- */
- public function exceptionHandler( $e ) {
- global $wgFullyInitialised;
- if ( is_a( $e, 'MWException' ) ) {
- try {
- $msg = "Exception Caught: {$e->getMessage()}";
- $this->makeErrorMessage($msg, 'internal_api_error', "\n\n{$e->getTraceAsString()}\n\n");
- $this->printError();
- } catch (Exception $e2) {
- echo $e->__toString();
- }
- } else {
- echo $e->__toString();
- }
-
- // Final cleanup, similar to wfErrorExit()
- if ( $wgFullyInitialised ) {
- try {
- wfLogProfilingData(); // uses $wgRequest, hence the $wgFullyInitialised condition
- } catch ( Exception $e ) {}
- }
-
- // Exit value should be nonzero for the benefit of shell jobs
- exit( 1 );
- }
-
private $mIsBot = null;
public function isBot() {
return $this->mIsBot;
}
+ public function getShowVersions() {
+ return $this->mShowVersions;
+ }
+
public function getVersion() {
$vers = array ();
$vers[] = __CLASS__ . ': $Id$';
*/
class UsageException extends Exception {
- private $codestr;
+ private $mCodestr;
- public function __construct($message, $codestr) {
- parent :: __construct($message);
- $this->codestr = $codestr;
+ public function __construct($message, $codestr, $code = 0) {
+ parent :: __construct($message, $code);
+ $this->mCodestr = $codestr;
+ }
+ public function getCodeString() {
+ return $this->mCodestr;
}
public function __toString() {
- return "{$this->codestr}: {$this->message}";
+ return "{$this->getCodeString()}: {$this->getMessage()}";
}
}
?>
\ No newline at end of file
--- /dev/null
+<?php
+
+
+/*
+ * Created on Oct 13, 2006
+ *
+ * API for MediaWiki 1.8+
+ *
+ * Copyright (C) 2006 Yuri Astrakhan <FirstnameLastname@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.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+if (!defined('MEDIAWIKI')) {
+ // Eclipse helper - will be ignored in production
+ require_once ("ApiFormatBase.php");
+}
+
+class ApiOpenSearch extends ApiFormatBase {
+
+ private $mResult = array();
+
+ public function __construct($main, $action) {
+ parent :: __construct($main, 'opensearch');
+ }
+
+ public function getMimeType() {
+ return 'application/json';
+ }
+
+ public function execute() {
+ $command = null;
+ extract($this->ExtractRequestParams());
+
+ // Prepare nested request
+ $params = new FauxRequest(array (
+ 'action' => 'query',
+ 'list' => 'allpages',
+ 'apnamespace' => 0,
+ 'aplimit' => 10,
+ 'apprefix' => $command
+ ));
+
+ // Execute
+ $module = new ApiMain($params);
+ $module->execute();
+
+ // Get clean data
+ $result =& $module->getResult();
+ $result->SanitizeData();
+ $data = $result->GetData();
+
+ // Reformat useful data for future printing
+ $result = array();
+ foreach ($data['query']['allpages'] as $pageid => &$pageinfo) {
+ $result[] = $pageinfo['title'];
+ }
+
+ $this->mResult = array($command, $result);
+ }
+
+ public function executePrinter() {
+ $json = new Services_JSON();
+ $this->printText($json->encode($this->mResult, true));
+ }
+
+ protected function GetAllowedParams() {
+ return array (
+ 'command' => null
+ );
+ }
+
+ protected function GetParamDescription() {
+ return array (
+ 'command' => 'Search string'
+ );
+ }
+
+ protected function GetDescription() {
+ return 'This module implements OpenSearch protocol';
+ }
+
+ protected function GetExamples() {
+ return array (
+ 'api.php?action=opensearch&command=Te'
+ );
+ }
+
+ public function getVersion() {
+ return __CLASS__ . ': $Id$';
+ }
+}
+?>
\ No newline at end of file