<?php
-
/*
* Created on Sep 5, 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
* http://www.gnu.org/copyleft/gpl.html
*/
+/**
+ * This abstract class implements many basic API functions, and is the base of all API classes.
+ * The class functions are divided into several areas of functionality:
+ *
+ * Module parameters: Derived classes can define getAllowedParams() to specify which parameters to expect,
+ * how to parse and validate them.
+ *
+ * Profiling: various methods to allow keeping tabs on various tasks and their time costs
+ *
+ * Self-documentation: code to allow api to document its own state.
+ *
+ * @addtogroup API
+ */
abstract class ApiBase {
// These constants allow modules to specify exactly how to treat incomming parameters.
const PARAM_DFLT = 0;
const PARAM_ISMULTI = 1;
const PARAM_TYPE = 2;
- const PARAM_MAX1 = 3;
+ const PARAM_MAX = 3;
const PARAM_MAX2 = 4;
const PARAM_MIN = 5;
+ const LIMIT_BIG1 = 500; // Fast query, std user limit
+ const LIMIT_BIG2 = 5000; // Fast query, bot/sysop limit
+ const LIMIT_SML1 = 50; // Slow query, std user limit
+ const LIMIT_SML2 = 500; // Slow query, bot/sysop limit
+
private $mMainModule, $mModuleName, $mParamPrefix;
/**
*/
public function __construct($mainModule, $moduleName, $paramPrefix = '') {
$this->mMainModule = $mainModule;
- $this->mModuleName = $moduleName;
+ $this->mModuleName = $moduleName;
$this->mParamPrefix = $paramPrefix;
}
*/
public abstract function execute();
- /**
- * Get the name of the query being executed by this instance
- */
- public function getModuleName() {
- return $this->mModuleName;
- }
+ /**
+ * Get the name of the module being executed by this instance
+ */
+ public function getModuleName() {
+ return $this->mModuleName;
+ }
+
+ /**
+ * Get parameter prefix (usually two letters or an empty string).
+ */
+ public function getParamPrefix() {
+ return $this->mParamPrefix;
+ }
+
+ /**
+ * Get the name of the module as shown in the profiler log
+ */
+ public function getModuleProfileName($db = false) {
+ if ($db)
+ return 'API:' . $this->mModuleName . '-DB';
+ else
+ return 'API:' . $this->mModuleName;
+ }
/**
* Get main module
return $this->getResult()->getData();
}
+ /**
+ * If the module may only be used with a certain format module,
+ * it should override this method to return an instance of that formatter.
+ * A value of null means the default format will be used.
+ */
+ public function getCustomPrinter() {
+ return null;
+ }
+
/**
* Generates help message for this module, or false if there is no description
*/
if ($this->getMain()->getShowVersions()) {
$versions = $this->getVersion();
- if (is_array($versions))
+ $pattern = '(\$.*) ([0-9a-z_]+\.php) (.*\$)';
+ $replacement = '\\0' . "\n " . 'http://svn.wikimedia.org/viewvc/mediawiki/trunk/phase3/includes/api/\\2';
+
+ if (is_array($versions)) {
+ foreach ($versions as &$v)
+ $v = eregi_replace($pattern, $replacement, $v);
$versions = implode("\n ", $versions);
+ }
+ else
+ $versions = eregi_replace($pattern, $replacement, $versions);
+
$msg .= "Version:\n $versions\n";
}
}
$paramsDescription = $this->getParamDescription();
$msg = '';
- foreach (array_keys($params) as $paramName) {
+ $paramPrefix = "\n" . str_repeat(' ', 19);
+ foreach ($params as $paramName => $paramSettings) {
$desc = isset ($paramsDescription[$paramName]) ? $paramsDescription[$paramName] : '';
if (is_array($desc))
- $desc = implode("\n" . str_repeat(' ', 19), $desc);
+ $desc = implode($paramPrefix, $desc);
+
+ @ $type = $paramSettings[self :: PARAM_TYPE];
+ if (isset ($type)) {
+ if (isset ($paramSettings[self :: PARAM_ISMULTI]))
+ $prompt = 'Values (separate with \'|\'): ';
+ else
+ $prompt = 'One value: ';
+
+ if (is_array($type)) {
+ $choices = array();
+ $nothingPrompt = false;
+ foreach ($type as $t)
+ if ($t=='')
+ $nothingPrompt = 'Can be empty, or ';
+ else
+ $choices[] = $t;
+ $desc .= $paramPrefix . $nothingPrompt . $prompt . implode(', ', $choices);
+ } else {
+ switch ($type) {
+ case 'namespace':
+ // Special handling because namespaces are type-limited, yet they are not given
+ $desc .= $paramPrefix . $prompt . implode(', ', ApiBase :: getValidNamespaces());
+ break;
+ case 'limit':
+ $desc .= $paramPrefix . "No more than {$paramSettings[self :: PARAM_MAX]} ({$paramSettings[self :: PARAM_MAX2]} for bots) allowed.";
+ break;
+ case 'integer':
+ $hasMin = isset($paramSettings[self :: PARAM_MIN]);
+ $hasMax = isset($paramSettings[self :: PARAM_MAX]);
+ if ($hasMin || $hasMax) {
+ if (!$hasMax)
+ $intRangeStr = "The value must be no less than {$paramSettings[self :: PARAM_MIN]}";
+ elseif (!$hasMin)
+ $intRangeStr = "The value must be no more than {$paramSettings[self :: PARAM_MAX]}";
+ else
+ $intRangeStr = "The value must be between {$paramSettings[self :: PARAM_MIN]} and {$paramSettings[self :: PARAM_MAX]}";
+
+ $desc .= $paramPrefix . $intRangeStr;
+ }
+ break;
+ }
+ }
+ }
+
+ $default = is_array($paramSettings) ? (isset ($paramSettings[self :: PARAM_DFLT]) ? $paramSettings[self :: PARAM_DFLT] : null) : $paramSettings;
+ if (!is_null($default) && $default !== false)
+ $desc .= $paramPrefix . "Default: $default";
+
$msg .= sprintf(" %-14s - %s\n", $this->encodeParamName($paramName), $desc);
}
return $msg;
protected function getParamDescription() {
return false;
}
-
+
/**
* This method mangles parameter name based on the prefix supplied to the constructor.
* Override this method to change parameter name during runtime
return $this->getParameterFromSettings($paramName, $paramSettings);
}
+ public static function getValidNamespaces() {
+ static $mValidNamespaces = null;
+ if (is_null($mValidNamespaces)) {
+
+ global $wgContLang;
+ $mValidNamespaces = array ();
+ foreach (array_keys($wgContLang->getNamespaces()) as $ns) {
+ if ($ns >= 0)
+ $mValidNamespaces[] = $ns;
+ }
+ }
+ return $mValidNamespaces;
+ }
+
/**
* Using the settings determine the value for the given parameter
* @param $paramName String: parameter name
* @param $paramSettings Mixed: default value or an array of settings using PARAM_* constants.
- */
+ */
protected function getParameterFromSettings($paramName, $paramSettings) {
// Some classes may decide to change parameter names
- $paramName = $this->encodeParamName($paramName);
+ $encParamName = $this->encodeParamName($paramName);
if (!is_array($paramSettings)) {
$default = $paramSettings;
if ($type == 'boolean') {
if (isset ($default) && $default !== false) {
// Having a default value of anything other than 'false' is pointless
- ApiBase :: dieDebug(__METHOD__, "Boolean param $paramName's default is set to '$default'");
+ ApiBase :: dieDebug(__METHOD__, "Boolean param $encParamName's default is set to '$default'");
}
- $value = $this->getMain()->getRequest()->getCheck($paramName);
+ $value = $this->getMain()->getRequest()->getCheck($encParamName);
} else {
- $value = $this->getMain()->getRequest()->getVal($paramName, $default);
+ $value = $this->getMain()->getRequest()->getVal($encParamName, $default);
+
+ if (isset ($value) && $type == 'namespace')
+ $type = ApiBase :: getValidNamespaces();
}
-
+
if (isset ($value) && ($multi || is_array($type)))
- $value = $this->parseMultiValue($paramName, $value, $multi, is_array($type) ? $type : null);
+ $value = $this->parseMultiValue($encParamName, $value, $multi, is_array($type) ? $type : null);
// More validation only when choices were not given
// choices were validated in parseMultiValue()
- if (!is_array($type) && isset ($value)) {
-
- switch ($type) {
- case 'NULL' : // nothing to do
- break;
- case 'string' : // nothing to do
- break;
- case 'integer' : // Force everything using intval()
- $value = is_array($value) ? array_map('intval', $value) : intval($value);
- break;
- case 'limit' :
- if (!isset ($paramSettings[self :: PARAM_MAX1]) || !isset ($paramSettings[self :: PARAM_MAX2]))
- ApiBase :: dieDebug(__METHOD__, "MAX1 or MAX2 are not defined for the limit $paramName");
- if ($multi)
- ApiBase :: dieDebug(__METHOD__, "Multi-values not supported for $paramName");
- $min = isset ($paramSettings[self :: PARAM_MIN]) ? $paramSettings[self :: PARAM_MIN] : 0;
- $value = intval($value);
- $this->validateLimit($paramName, $value, $min, $paramSettings[self :: PARAM_MAX1], $paramSettings[self :: PARAM_MAX2]);
- break;
- case 'boolean' :
- if ($multi)
- ApiBase :: dieDebug(__METHOD__, "Multi-values not supported for $paramName");
- break;
- case 'timestamp' :
- if ($multi)
- ApiBase :: dieDebug(__METHOD__, "Multi-values not supported for $paramName");
- if (!preg_match('/^[0-9]{14}$/', $value))
- $this->dieUsage("Invalid value '$value' for timestamp parameter $paramName", "badtimestamp_{$valueName}");
- break;
- default :
- ApiBase :: dieDebug(__METHOD__, "Param $paramName's type is unknown - $type");
-
+ if (isset ($value)) {
+ if (!is_array($type)) {
+ switch ($type) {
+ case 'NULL' : // nothing to do
+ break;
+ case 'string' : // nothing to do
+ break;
+ case 'integer' : // Force everything using intval() and optionally validate limits
+
+ $value = is_array($value) ? array_map('intval', $value) : intval($value);
+ $min = isset ($paramSettings[self :: PARAM_MIN]) ? $paramSettings[self :: PARAM_MIN] : null;
+ $max = isset ($paramSettings[self :: PARAM_MAX]) ? $paramSettings[self :: PARAM_MAX] : null;
+
+ if (!is_null($min) || !is_null($max)) {
+ $values = is_array($value) ? $value : array($value);
+ foreach ($values as $v) {
+ $this->validateLimit($paramName, $v, $min, $max);
+ }
+ }
+ break;
+ case 'limit' :
+ if (!isset ($paramSettings[self :: PARAM_MAX]) || !isset ($paramSettings[self :: PARAM_MAX2]))
+ ApiBase :: dieDebug(__METHOD__, "MAX1 or MAX2 are not defined for the limit $encParamName");
+ if ($multi)
+ ApiBase :: dieDebug(__METHOD__, "Multi-values not supported for $encParamName");
+ $min = isset ($paramSettings[self :: PARAM_MIN]) ? $paramSettings[self :: PARAM_MIN] : 0;
+ $value = intval($value);
+ $this->validateLimit($paramName, $value, $min, $paramSettings[self :: PARAM_MAX], $paramSettings[self :: PARAM_MAX2]);
+ break;
+ case 'boolean' :
+ if ($multi)
+ ApiBase :: dieDebug(__METHOD__, "Multi-values not supported for $encParamName");
+ break;
+ case 'timestamp' :
+ if ($multi)
+ ApiBase :: dieDebug(__METHOD__, "Multi-values not supported for $encParamName");
+ $value = wfTimestamp(TS_UNIX, $value);
+ if ($value === 0)
+ $this->dieUsage("Invalid value '$value' for timestamp parameter $encParamName", "badtimestamp_{$encParamName}");
+ $value = wfTimestamp(TS_MW, $value);
+ break;
+ case 'user' :
+ $title = Title::makeTitleSafe( NS_USER, $value );
+ if ( is_null( $title ) )
+ $this->dieUsage("Invalid value $user for user parameter $encParamName", "baduser_{$encParamName}");
+ $value = $title->getText();
+ break;
+ default :
+ ApiBase :: dieDebug(__METHOD__, "Param $encParamName's type is unknown - $type");
+ }
}
+
+ // There should never be any duplicate values in a list
+ if (is_array($value))
+ $value = array_unique($value);
}
- // There should never be any duplicate values in a list
- if (is_array($value))
- $value = array_unique($value);
-
return $value;
}
if (is_array($allowedValues)) {
$unknownValues = array_diff($valuesList, $allowedValues);
if ($unknownValues) {
- $this->dieUsage('Unrecognised value' . (count($unknownValues) > 1 ? "s '" : " '") . implode("', '", $unknownValues) . "' for parameter '$valueName'", "unknown_$valueName");
+ $this->dieUsage('Unrecognised value' . (count($unknownValues) > 1 ? "s" : "") . " for parameter '$valueName'", "unknown_$valueName");
}
}
/**
* Validate the value against the minimum and user/bot maximum limits. Prints usage info on failure.
*/
- function validateLimit($varname, $value, $min, $max, $botMax) {
- global $wgUser;
-
- if ($value < $min) {
- $this->dieUsage("$varname may not be less than $min (set to $value)", $varname);
+ function validateLimit($paramName, $value, $min, $max, $botMax = null) {
+ if (!is_null($min) && $value < $min) {
+ $this->dieUsage($this->encodeParamName($paramName) . " may not be less than $min (set to $value)", $paramName);
}
- if ($this->getMain()->isBot()) {
- if ($value > $botMax) {
- $this->dieUsage("$varname may not be over $botMax (set to $value) for bots", $varname);
+ // Optimization: do not check user's bot status unless really needed -- skips db query
+ // assumes $botMax >= $max
+ if (!is_null($max) && $value > $max) {
+ if (!is_null($botMax) && ($this->getMain()->isBot() || $this->getMain()->isSysop())) {
+ if ($value > $botMax) {
+ $this->dieUsage($this->encodeParamName($paramName) . " may not be over $botMax (set to $value) for bots or sysops", $paramName);
+ }
+ } else {
+ $this->dieUsage($this->encodeParamName($paramName) . " may not be over $max (set to $value) for users", $paramName);
}
}
- elseif ($value > $max) {
- $this->dieUsage("$varname may not be over $max (set to $value) for users", $varname);
- }
}
/**
if ($this->mTimeIn !== 0)
ApiBase :: dieDebug(__METHOD__, 'called twice without calling profileOut()');
$this->mTimeIn = microtime(true);
+ wfProfileIn($this->getModuleProfileName());
}
/**
$this->mModuleTime += microtime(true) - $this->mTimeIn;
$this->mTimeIn = 0;
+ wfProfileOut($this->getModuleProfileName());
+ }
+
+ /**
+ * When modules crash, sometimes it is needed to do a profileOut() regardless
+ * of the profiling state the module was in. This method does such cleanup.
+ */
+ public function safeProfileOut() {
+ if ($this->mTimeIn !== 0) {
+ if ($this->mDBTimeIn !== 0)
+ $this->profileDBOut();
+ $this->profileOut();
+ }
}
/**
if ($this->mDBTimeIn !== 0)
ApiBase :: dieDebug(__METHOD__, 'called twice without calling profileDBOut()');
$this->mDBTimeIn = microtime(true);
+ wfProfileIn($this->getModuleProfileName(true));
}
/**
$this->mDBTime += $time;
$this->getMain()->mDBTime += $time;
+ wfProfileOut($this->getModuleProfileName(true));
}
/**
ApiBase :: dieDebug(__METHOD__, 'called without calling profileDBOut() first');
return $this->mDBTime;
}
+
+ public static function debugPrint($value, $name = 'unknown', $backtrace = false) {
+ print "\n\n<pre><b>Debuging value '$name':</b>\n\n";
+ var_export($value);
+ if ($backtrace)
+ print "\n" . wfBacktrace();
+ print "\n</pre>\n";
+ }
public abstract function getVersion();
-
+
public static function getBaseVersion() {
return __CLASS__ . ': $Id$';
}
}
-?>
\ No newline at end of file
+
dépôts / lhc / web / wiklou.git / blobdiff