-<?php\r
-\r
-\r
-/*\r
- * Created on Sep 5, 2006\r
- *\r
- * API for MediaWiki 1.8+\r
- *\r
- * Copyright (C) 2006 Yuri Astrakhan <FirstnameLastname@gmail.com>\r
- *\r
- * This program is free software; you can redistribute it and/or modify\r
- * it under the terms of the GNU General Public License as published by\r
- * the Free Software Foundation; either version 2 of the License, or\r
- * (at your option) any later version.\r
- *\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License along\r
- * with this program; if not, write to the Free Software Foundation, Inc.,\r
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\r
- * http://www.gnu.org/copyleft/gpl.html\r
- */\r
-\r
-// Multi-valued enums, limit the values user can supply for the parameter\r
-define('GN_ENUM_DFLT', 'dflt');\r
-define('GN_ENUM_ISMULTI', 'multi');\r
-define('GN_ENUM_TYPE', 'type');\r
-define('GN_ENUM_MAX1', 'max1');\r
-define('GN_ENUM_MAX2', 'max2');\r
-define('GN_ENUM_MIN', 'min');\r
-\r
-abstract class ApiBase {\r
-\r
- private $mMainModule;\r
-\r
- /**\r
- * Constructor\r
- */\r
- public function __construct($mainModule) {\r
- $this->mMainModule = $mainModule;\r
- }\r
-\r
- /**\r
- * Executes this module\r
- */\r
- abstract function execute();\r
-\r
- /**\r
- * Get main module\r
- */\r
- public function getMain() {\r
- return $this->mMainModule;\r
- }\r
-\r
- /**\r
- * If this module's $this is the same as $this->mMainModule, its the root, otherwise no\r
- */\r
- public function isMain() {\r
- return $this === $this->mMainModule;\r
- }\r
-\r
- /**\r
- * Get result object\r
- */\r
- public function getResult() {\r
- // Main module has getResult() method overriden\r
- // Safety - avoid infinite loop:\r
- if ($this->isMain())\r
- $this->dieDebug(__METHOD__ .\r
- ' base method was called on main module. ');\r
- return $this->getMain()->getResult();\r
- }\r
-\r
- /**\r
- * Generates help message for this module, or false if there is no description\r
- */\r
- public function makeHelpMsg() {\r
-\r
- static $lnPrfx = "\n ";\r
-\r
- $msg = $this->getDescription();\r
-\r
- if ($msg !== false) {\r
-\r
- if (!is_array($msg))\r
- $msg = array (\r
- $msg\r
- );\r
- $msg = $lnPrfx . implode($lnPrfx, $msg) . "\n";\r
-\r
- // Parameters\r
- $paramsMsg = $this->makeHelpMsgParameters();\r
- if ($paramsMsg !== false) {\r
- $msg .= "Parameters:\n$paramsMsg";\r
- }\r
-\r
- // Examples\r
- $examples = $this->getExamples();\r
- if ($examples !== false) {\r
- if (!is_array($examples))\r
- $examples = array (\r
- $examples\r
- );\r
- $msg .= 'Example' . (count($examples) > 1 ? 's' : '') . ":\n ";\r
- $msg .= implode($lnPrfx, $examples) . "\n";\r
- }\r
- }\r
-\r
- return $msg;\r
- }\r
-\r
- public function makeHelpMsgParameters() {\r
- $params = $this->getAllowedParams();\r
- if ($params !== false) {\r
- \r
- $paramsDescription = $this->getParamDescription();\r
- $msg = '';\r
- foreach (array_keys($params) as $paramName) {\r
- $desc = isset ($paramsDescription[$paramName]) ? $paramsDescription[$paramName] : '';\r
- if (is_array($desc))\r
- $desc = implode("\n" . str_repeat(' ', 19), $desc);\r
- $msg .= sprintf(" %-14s - %s\n", $paramName, $desc);\r
- }\r
- return $msg;\r
- \r
- }\r
- else\r
- return false; \r
- }\r
-\r
- /**\r
- * Returns the description string for this module\r
- */\r
- protected function getDescription() {\r
- return false;\r
- }\r
-\r
- /**\r
- * Returns usage examples for this module. Return null if no examples are available.\r
- */\r
- protected function getExamples() {\r
- return false;\r
- }\r
-\r
- /**\r
- * Returns an array of allowed parameters (keys) => default value for that parameter\r
- */\r
- protected function getAllowedParams() {\r
- return false;\r
- }\r
-\r
- /**\r
- * Returns the description string for the given parameter.\r
- */\r
- protected function getParamDescription() {\r
- return false;\r
- }\r
-\r
- /**\r
- * Using getAllowedParams(), makes an array of the values provided by the user,\r
- * with key being the name of the variable, and value - validated value from user or default.\r
- * This method can be used to generate local variables using extract().\r
- */\r
- public function extractRequestParams() {\r
- $params = $this->getAllowedParams();\r
- $results = array ();\r
-\r
- foreach ($params as $paramName => $paramSettings)\r
- $results[$paramName] = $this->getParameter($paramName, $paramSettings);\r
-\r
- return $results;\r
- }\r
-\r
- public function getParameter($paramName, $paramSettings){\r
- global $wgRequest;\r
-\r
- if (!is_array($paramSettings)) {\r
- $default = $paramSettings;\r
- $multi = false;\r
- $type = gettype($paramSettings);\r
- } else {\r
- $default = isset ($paramSettings[GN_ENUM_DFLT]) ? $paramSettings[GN_ENUM_DFLT] : null;\r
- $multi = isset ($paramSettings[GN_ENUM_ISMULTI]) ? $paramSettings[GN_ENUM_ISMULTI] : false;\r
- $type = isset ($paramSettings[GN_ENUM_TYPE]) ? $paramSettings[GN_ENUM_TYPE] : null;\r
-\r
- // When type is not given, and no choices, the type is the same as $default\r
- if (!isset ($type)) {\r
- if (isset ($default))\r
- $type = gettype($default);\r
- else\r
- $type = 'NULL'; // allow everything\r
- }\r
- }\r
-\r
- if ($type == 'boolean') {\r
- if (isset ($default) && $default !== false) {\r
- // Having a default value of anything other than 'false' is pointless\r
- $this->dieDebug("Boolean param $paramName's default is set to '$default'");\r
- }\r
-\r
- $value = $wgRequest->getCheck($paramName);\r
- } else\r
- $value = $wgRequest->getVal($paramName, $default);\r
-\r
- if (isset ($value) && ($multi || is_array($type)))\r
- $value = $this->parseMultiValue($paramName, $value, $multi, is_array($type) ? $type : null);\r
-\r
- // More validation only when choices were not given\r
- // choices were validated in parseMultiValue()\r
- if (!is_array($type) && isset ($value)) {\r
-\r
- switch ($type) {\r
- case 'NULL' : // nothing to do\r
- break;\r
- case 'string' : // nothing to do\r
- break;\r
- case 'integer' : // Force everything using intval()\r
- $value = is_array($value) ? array_map('intval', $value) : intval($value);\r
- break;\r
- case 'limit' :\r
- if (!isset ($paramSettings[GN_ENUM_MAX1]) || !isset ($paramSettings[GN_ENUM_MAX2]))\r
- $this->dieDebug("MAX1 or MAX2 are not defined for the limit $paramName");\r
- if ($multi)\r
- $this->dieDebug("Multi-values not supported for $paramName");\r
- $min = isset ($paramSettings[GN_ENUM_MIN]) ? $paramSettings[GN_ENUM_MIN] : 0;\r
- $value = intval($value);\r
- $this->validateLimit($paramName, $value, $min, $paramSettings[GN_ENUM_MAX1], $paramSettings[GN_ENUM_MAX2]);\r
- break;\r
- case 'boolean' :\r
- if ($multi)\r
- $this->dieDebug("Multi-values not supported for $paramName");\r
- break;\r
- case 'timestamp' :\r
- if ($multi)\r
- $this->dieDebug("Multi-values not supported for $paramName");\r
- $value = $this->prepareTimestamp($value); // Adds quotes around timestamp \r
- break;\r
- default :\r
- $this->dieDebug("Param $paramName's type is unknown - $type");\r
-\r
- }\r
- }\r
-\r
- return $value; \r
- }\r
- \r
- /**\r
- * Return an array of values that were given in a "a|b|c" notation,\r
- * after it optionally validates them against the list allowed values.\r
- * \r
- * @param valueName - The name of the parameter (for error reporting)\r
- * @param value - The value being parsed\r
- * @param allowMultiple - Can $value contain more than one value separated by '|'?\r
- * @param allowedValues - An array of values to check against. If null, all values are accepted.\r
- * @return (allowMultiple ? an_array_of_values : a_single_value) \r
- */\r
- protected function parseMultiValue($valueName, $value, $allowMultiple, $allowedValues) {\r
- $valuesList = explode('|', $value);\r
- if (!$allowMultiple && count($valuesList) != 1) {\r
- $possibleValues = is_array($allowedValues) ? "of '" . implode("', '", $allowedValues) . "'" : '';\r
- $this->dieUsage("Only one $possibleValues is allowed for parameter '$valueName'", "multival_$valueName");\r
- }\r
- if (is_array($allowedValues)) {\r
- $unknownValues = array_diff($valuesList, $allowedValues);\r
- if ($unknownValues) {\r
- $this->dieUsage("Unrecognised value" . (count($unknownValues) > 1 ? "s '" : " '") . implode("', '", $unknownValues) . "' for parameter '$valueName'", "unknown_$valueName");\r
- }\r
- }\r
-\r
- return $allowMultiple ? $valuesList : $valuesList[0];\r
- }\r
-\r
- /**\r
- * Validate the proper format of the timestamp string (14 digits), and add quotes to it.\r
- */\r
- function prepareTimestamp($value) {\r
- if (preg_match('/^[0-9]{14}$/', $value)) {\r
- return $this->db->addQuotes($value);\r
- } else {\r
- $this->dieUsage('Incorrect timestamp format', 'badtimestamp');\r
- }\r
- }\r
-\r
- /**\r
- * Validate the value against the minimum and user/bot maximum limits. Prints usage info on failure.\r
- */\r
- function validateLimit($varname, $value, $min, $max, $botMax) {\r
- global $wgUser;\r
-\r
- if ($value < $min) {\r
- $this->dieUsage("$varname may not be less than $min (set to $value)", $varname);\r
- }\r
-\r
- if ($this->getMain()->isBot()) {\r
- if ($value > $botMax) {\r
- $this->dieUsage("$varname may not be over $botMax (set to $value) for bots", $varname);\r
- }\r
- } else {\r
- if ($value > $max) {\r
- $this->dieUsage("$varname may not be over $max (set to $value) for users", $varname);\r
- }\r
- }\r
- }\r
-\r
- /**\r
- * Call main module's error handler \r
- */\r
- public function dieUsage($description, $errorCode, $httpRespCode = 0) {\r
- $this->getMain()->mainDieUsage($description, $errorCode, $httpRespCode);\r
- }\r
-\r
- /**\r
- * Internal code errors should be reported with this method\r
- */\r
- protected function dieDebug($message) {\r
- wfDebugDieBacktrace("Internal error in '{get_class($this)}': $message");\r
- }\r
- \r
- /**\r
- * Profiling: total module execution time\r
- */\r
- private $mTimeIn = 0, $mModuleTime = 0; \r
- \r
- /**\r
- * Start module profiling\r
- */\r
- public function profileIn()\r
- {\r
- if ($this->mTimeIn !== 0)\r
- $this->dieDebug(__FUNCTION__ . ' called twice without calling profileOut()');\r
- $this->mTimeIn = microtime(true);\r
- }\r
- \r
- /**\r
- * End module profiling\r
- */\r
- public function profileOut()\r
- {\r
- if ($this->mTimeIn === 0)\r
- $this->dieDebug(__FUNCTION__ . ' called without calling profileIn() first');\r
- if ($this->mDBTimeIn !== 0)\r
- $this->dieDebug(__FUNCTION__ . ' must be called after database profiling is done with profileDBOut()');\r
-\r
- $this->mModuleTime += microtime(true) - $this->mTimeIn;\r
- $this->mTimeIn = 0;\r
- }\r
- \r
- /**\r
- * Total time the module was executed\r
- */\r
- public function getProfileTime()\r
- {\r
- if ($this->mTimeIn !== 0)\r
- $this->dieDebug(__FUNCTION__ . ' called without calling profileOut() first');\r
- return $this->mModuleTime;\r
- }\r
- \r
- /**\r
- * Profiling: database execution time\r
- */\r
- private $mDBTimeIn = 0, $mDBTime = 0; \r
- \r
- /**\r
- * Start module profiling\r
- */\r
- public function profileDBIn()\r
- {\r
- if ($this->mTimeIn === 0)\r
- $this->dieDebug(__FUNCTION__ . ' must be called while profiling the entire module with profileIn()');\r
- if ($this->mDBTimeIn !== 0)\r
- $this->dieDebug(__FUNCTION__ . ' called twice without calling profileDBOut()');\r
- $this->mDBTimeIn = microtime(true);\r
- }\r
- \r
- /**\r
- * End database profiling\r
- */\r
- public function profileDBOut()\r
- {\r
- if ($this->mTimeIn === 0)\r
- $this->dieDebug(__FUNCTION__ . ' must be called while profiling the entire module with profileIn()');\r
- if ($this->mDBTimeIn === 0)\r
- $this->dieDebug(__FUNCTION__ . ' called without calling profileDBIn() first');\r
-\r
- $time = microtime(true) - $this->mDBTimeIn;\r
- $this->mDBTimeIn = 0;\r
-\r
- $this->mDBTime += $time;\r
- $this->getMain()->mDBTime += $time;\r
- }\r
- \r
- /**\r
- * Total time the module used the database\r
- */\r
- public function getProfileDBTime()\r
- {\r
- if ($this->mDBTimeIn !== 0)\r
- $this->dieDebug(__FUNCTION__ . ' called without calling profileDBOut() first');\r
- return $this->mDBTime;\r
- }\r
-}\r
-?>
\ No newline at end of file
+<?php
+
+/*
+ * Created on Sep 5, 2006
+ *
+ * API for MediaWiki 1.8+
+ *
+ * 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
+ * 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
+ */
+
+/**
+ * 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.
+ *
+ * @ingroup 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_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, $mModulePrefix;
+
+ /**
+ * Constructor
+ */
+ public function __construct($mainModule, $moduleName, $modulePrefix = '') {
+ $this->mMainModule = $mainModule;
+ $this->mModuleName = $moduleName;
+ $this->mModulePrefix = $modulePrefix;
+ }
+
+ /*****************************************************************************
+ * ABSTRACT METHODS *
+ *****************************************************************************/
+
+ /**
+ * Evaluates the parameters, performs the requested query, and sets up the
+ * result. Concrete implementations of ApiBase must override this method to
+ * provide whatever functionality their module offers. Implementations must
+ * not produce any output on their own and are not expected to handle any
+ * errors.
+ *
+ * The execute method will be invoked directly by ApiMain immediately before
+ * the result of the module is output. Aside from the constructor, implementations
+ * should assume that no other methods will be called externally on the module
+ * before the result is processed.
+ *
+ * The result data should be stored in the result object referred to by
+ * "getResult()". Refer to ApiResult.php for details on populating a result
+ * object.
+ */
+ public abstract function execute();
+
+ /**
+ * Returns a String that identifies the version of the extending class. Typically
+ * includes the class name, the svn revision, timestamp, and last author. May
+ * be severely incorrect in many implementations!
+ */
+ public abstract function getVersion();
+
+ /**
+ * 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 getModulePrefix() {
+ return $this->mModulePrefix;
+ }
+
+ /**
+ * Get the name of the module as shown in the profiler log
+ */
+ public function getModuleProfileName($db = false) {
+ if ($db)
+ return 'API:' . $this->mModuleName . '-DB';
+ else
+ return 'API:' . $this->mModuleName;
+ }
+
+ /**
+ * Get main module
+ */
+ public function getMain() {
+ return $this->mMainModule;
+ }
+
+ /**
+ * Returns true if this module is the main module ($this === $this->mMainModule),
+ * false otherwise.
+ */
+ public function isMain() {
+ return $this === $this->mMainModule;
+ }
+
+ /**
+ * Get the result object. Please refer to the documentation in ApiResult.php
+ * for details on populating and accessing data in a result object.
+ */
+ public function getResult() {
+ // Main module has getResult() method overriden
+ // Safety - avoid infinite loop:
+ if ($this->isMain())
+ ApiBase :: dieDebug(__METHOD__, 'base method was called on main module. ');
+ return $this->getMain()->getResult();
+ }
+
+ /**
+ * Get the result data array
+ */
+ public function & getResultData() {
+ return $this->getResult()->getData();
+ }
+
+ /**
+ * Set warning section for this module. Users should monitor this section to
+ * notice any changes in API.
+ */
+ public function setWarning($warning) {
+ # If there is a warning already, append it to the existing one
+ $data =& $this->getResult()->getData();
+ if(isset($data['warnings'][$this->getModuleName()]))
+ {
+ $warning = "{$data['warnings'][$this->getModuleName()]['*']}\n$warning";
+ unset($data['warnings'][$this->getModuleName()]);
+ }
+ $msg = array();
+ ApiResult :: setContent($msg, $warning);
+ $this->getResult()->addValue('warnings', $this->getModuleName(), $msg);
+ }
+
+ /**
+ * 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
+ */
+ public function makeHelpMsg() {
+
+ static $lnPrfx = "\n ";
+
+ $msg = $this->getDescription();
+
+ if ($msg !== false) {
+
+ if (!is_array($msg))
+ $msg = array (
+ $msg
+ );
+ $msg = $lnPrfx . implode($lnPrfx, $msg) . "\n";
+
+ if ($this->mustBePosted())
+ $msg .= "\nThis module only accepts POST requests.\n";
+
+ // Parameters
+ $paramsMsg = $this->makeHelpMsgParameters();
+ if ($paramsMsg !== false) {
+ $msg .= "Parameters:\n$paramsMsg";
+ }
+
+ // Examples
+ $examples = $this->getExamples();
+ if ($examples !== false) {
+ if (!is_array($examples))
+ $examples = array (
+ $examples
+ );
+ $msg .= 'Example' . (count($examples) > 1 ? 's' : '') . ":\n ";
+ $msg .= implode($lnPrfx, $examples) . "\n";
+ }
+
+ if ($this->getMain()->getShowVersions()) {
+ $versions = $this->getVersion();
+ $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";
+ }
+ }
+
+ return $msg;
+ }
+
+ /**
+ * Generates the parameter descriptions for this module, to be displayed in the
+ * module's help.
+ */
+ public function makeHelpMsgParameters() {
+ $params = $this->getAllowedParams();
+ if ($params !== false) {
+
+ $paramsDescription = $this->getParamDescription();
+ $msg = '';
+ $paramPrefix = "\n" . str_repeat(' ', 19);
+ foreach ($params as $paramName => $paramSettings) {
+ $desc = isset ($paramsDescription[$paramName]) ? $paramsDescription[$paramName] : '';
+ if (is_array($desc))
+ $desc = implode($paramPrefix, $desc);
+
+ $type = isset($paramSettings[self :: PARAM_TYPE])? $paramSettings[self :: PARAM_TYPE] : null;
+ if (isset ($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 $msg;
+
+ } else
+ return false;
+ }
+
+ /**
+ * Returns the description string for this module
+ */
+ protected function getDescription() {
+ return false;
+ }
+
+ /**
+ * Returns usage examples for this module. Return null if no examples are available.
+ */
+ protected function getExamples() {
+ return false;
+ }
+
+ /**
+ * Returns an array of allowed parameters (keys) => default value for that parameter
+ */
+ protected function getAllowedParams() {
+ return false;
+ }
+
+ /**
+ * Returns the description string for the given parameter.
+ */
+ protected function getParamDescription() {
+ return false;
+ }
+
+ /**
+ * This method mangles parameter name based on the prefix supplied to the constructor.
+ * Override this method to change parameter name during runtime
+ */
+ public function encodeParamName($paramName) {
+ return $this->mModulePrefix . $paramName;
+ }
+
+ /**
+ * Using getAllowedParams(), makes an array of the values provided by the user,
+ * with key being the name of the variable, and value - validated value from user or default.
+ * This method can be used to generate local variables using extract().
+ * limit=max will not be parsed if $parseMaxLimit is set to false; use this
+ * when the max limit is not definite, e.g. when getting revisions.
+ */
+ public function extractRequestParams($parseMaxLimit = true) {
+ $params = $this->getAllowedParams();
+ $results = array ();
+
+ foreach ($params as $paramName => $paramSettings)
+ $results[$paramName] = $this->getParameterFromSettings($paramName, $paramSettings, $parseMaxLimit);
+
+ return $results;
+ }
+
+ /**
+ * Get a value for the given parameter
+ */
+ protected function getParameter($paramName, $parseMaxLimit = true) {
+ $params = $this->getAllowedParams();
+ $paramSettings = $params[$paramName];
+ return $this->getParameterFromSettings($paramName, $paramSettings, $parseMaxLimit);
+ }
+
+ /**
+ * Returns an array of the namespaces (by integer id) that exist on the
+ * wiki. Used primarily in help documentation.
+ */
+ 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.
+ * @param $parseMaxLimit Boolean: parse limit when max is given?
+ */
+ protected function getParameterFromSettings($paramName, $paramSettings, $parseMaxLimit) {
+
+ // Some classes may decide to change parameter names
+ $encParamName = $this->encodeParamName($paramName);
+
+ if (!is_array($paramSettings)) {
+ $default = $paramSettings;
+ $multi = false;
+ $type = gettype($paramSettings);
+ } else {
+ $default = isset ($paramSettings[self :: PARAM_DFLT]) ? $paramSettings[self :: PARAM_DFLT] : null;
+ $multi = isset ($paramSettings[self :: PARAM_ISMULTI]) ? $paramSettings[self :: PARAM_ISMULTI] : false;
+ $type = isset ($paramSettings[self :: PARAM_TYPE]) ? $paramSettings[self :: PARAM_TYPE] : null;
+
+ // When type is not given, and no choices, the type is the same as $default
+ if (!isset ($type)) {
+ if (isset ($default))
+ $type = gettype($default);
+ else
+ $type = 'NULL'; // allow everything
+ }
+ }
+
+ if ($type == 'boolean') {
+ if (isset ($default) && $default !== false) {
+ // Having a default value of anything other than 'false' is pointless
+ ApiBase :: dieDebug(__METHOD__, "Boolean param $encParamName's default is set to '$default'");
+ }
+
+ $value = $this->getMain()->getRequest()->getCheck($encParamName);
+ } else {
+ $value = $this->getMain()->getRequest()->getVal($encParamName, $default);
+
+ if (isset ($value) && $type == 'namespace')
+ $type = ApiBase :: getValidNamespaces();
+ }
+
+ if (isset ($value) && ($multi || is_array($type)))
+ $value = $this->parseMultiValue($encParamName, $value, $multi, is_array($type) ? $type : null);
+
+ // More validation only when choices were not given
+ // choices were validated in parseMultiValue()
+ if (isset ($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;
+ if( $value == 'max' ) {
+ if( $parseMaxLimit ) {
+ $value = $this->getMain()->canApiHighLimits() ? $paramSettings[self :: PARAM_MAX2] : $paramSettings[self :: PARAM_MAX];
+ $this->getResult()->addValue( 'limits', $this->getModuleName(), $value );
+ $this->validateLimit($paramName, $value, $min, $paramSettings[self :: PARAM_MAX], $paramSettings[self :: PARAM_MAX2]);
+ }
+ }
+ else {
+ $value = intval($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 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);
+ }
+
+ return $value;
+ }
+
+ /**
+ * Return an array of values that were given in a 'a|b|c' notation,
+ * after it optionally validates them against the list allowed values.
+ *
+ * @param valueName - The name of the parameter (for error reporting)
+ * @param value - The value being parsed
+ * @param allowMultiple - Can $value contain more than one value separated by '|'?
+ * @param allowedValues - An array of values to check against. If null, all values are accepted.
+ * @return (allowMultiple ? an_array_of_values : a_single_value)
+ */
+ protected function parseMultiValue($valueName, $value, $allowMultiple, $allowedValues) {
+ if( trim($value) === "" )
+ return array();
+ $sizeLimit = $this->mMainModule->canApiHighLimits() ? self::LIMIT_SML2 : self::LIMIT_SML1;
+ $valuesList = explode('|', $value, $sizeLimit + 1);
+ if( count($valuesList) == $sizeLimit + 1 ) {
+ $junk = array_pop($valuesList); // kill last jumbled param
+ // Set a warning too
+ $this->setWarning("Too many values supplied for parameter '$valueName': the limit is $sizeLimit");
+ }
+ if (!$allowMultiple && count($valuesList) != 1) {
+ $possibleValues = is_array($allowedValues) ? "of '" . implode("', '", $allowedValues) . "'" : '';
+ $this->dieUsage("Only one $possibleValues is allowed for parameter '$valueName'", "multival_$valueName");
+ }
+ if (is_array($allowedValues)) {
+ # Check for unknown values
+ $unknown = array_diff($valuesList, $allowedValues);
+ if(!empty($unknown))
+ {
+ if($allowMultiple)
+ {
+ $s = count($unknown) > 1 ? "s" : "";
+ $vals = implode(", ", $unknown);
+ $this->setWarning("Unrecognized value$s for parameter '$valueName': $vals");
+ }
+ else
+ $this->dieUsage("Unrecognized value for parameter '$valueName': {$valuesList[0]}", "unknown_$valueName");
+ }
+ # Now throw them out
+ $valuesList = array_intersect($valuesList, $allowedValues);
+ }
+
+ return $allowMultiple ? $valuesList : $valuesList[0];
+ }
+
+ /**
+ * Validate the value against the minimum and user/bot maximum limits. Prints usage info on failure.
+ */
+ function validateLimit($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)", $paramName);
+ }
+
+ // Minimum is always validated, whereas maximum is checked only if not running in internal call mode
+ if ($this->getMain()->isInternalMode())
+ return;
+
+ // 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) && $this->getMain()->canApiHighLimits()) {
+ if ($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", $paramName);
+ }
+ }
+ }
+
+ /**
+ * Call main module's error handler
+ */
+ public function dieUsage($description, $errorCode, $httpRespCode = 0) {
+ throw new UsageException($description, $this->encodeParamName($errorCode), $httpRespCode);
+ }
+
+ /**
+ * Array that maps message keys to error messages. $1 and friends are replaced.
+ */
+ public static $messageMap = array(
+ // This one MUST be present, or dieUsageMsg() will recurse infinitely
+ 'unknownerror' => array('code' => 'unknownerror', 'info' => "Unknown error: ``\$1''"),
+ 'unknownerror-nocode' => array('code' => 'unknownerror', 'info' => 'Unknown error'),
+
+ // Messages from Title::getUserPermissionsErrors()
+ 'ns-specialprotected' => array('code' => 'unsupportednamespace', 'info' => "Pages in the Special namespace can't be edited"),
+ 'protectedinterface' => array('code' => 'protectednamespace-interface', 'info' => "You're not allowed to edit interface messages"),
+ 'namespaceprotected' => array('code' => 'protectednamespace', 'info' => "You're not allowed to edit pages in the ``\$1'' namespace"),
+ 'customcssjsprotected' => array('code' => 'customcssjsprotected', 'info' => "You're not allowed to edit custom CSS and JavaScript pages"),
+ 'cascadeprotected' => array('code' => 'cascadeprotected', 'info' =>"The page you're trying to edit is protected because it's included in a cascade-protected page"),
+ 'protectedpagetext' => array('code' => 'protectedpage', 'info' => "The ``\$1'' right is required to edit this page"),
+ 'protect-cantedit' => array('code' => 'cantedit', 'info' => "You can't protect this page because you can't edit it"),
+ 'badaccess-group0' => array('code' => 'permissiondenied', 'info' => "Permission denied"), // Generic permission denied message
+ 'badaccess-groups' => array('code' => 'permissiondenied', 'info' => "Permission denied"),
+ 'titleprotected' => array('code' => 'protectedtitle', 'info' => "This title has been protected from creation"),
+ 'nocreate-loggedin' => array('code' => 'cantcreate', 'info' => "You don't have permission to create new pages"),
+ 'nocreatetext' => array('code' => 'cantcreate-anon', 'info' => "Anonymous users can't create new pages"),
+ 'movenologintext' => array('code' => 'cantmove-anon', 'info' => "Anonymous users can't move pages"),
+ 'movenotallowed' => array('code' => 'cantmove', 'info' => "You don't have permission to move pages"),
+ 'confirmedittext' => array('code' => 'confirmemail', 'info' => "You must confirm your e-mail address before you can edit"),
+ 'blockedtext' => array('code' => 'blocked', 'info' => "You have been blocked from editing"),
+ 'autoblockedtext' => array('code' => 'autoblocked', 'info' => "Your IP address has been blocked automatically, because it was used by a blocked user"),
+
+ // Miscellaneous interface messages
+ 'actionthrottledtext' => array('code' => 'ratelimited', 'info' => "You've exceeded your rate limit. Please wait some time and try again"),
+ 'alreadyrolled' => array('code' => 'alreadyrolled', 'info' => "The page you tried to rollback was already rolled back"),
+ 'cantrollback' => array('code' => 'onlyauthor', 'info' => "The page you tried to rollback only has one author"),
+ 'readonlytext' => array('code' => 'readonly', 'info' => "The wiki is currently in read-only mode"),
+ 'sessionfailure' => array('code' => 'badtoken', 'info' => "Invalid token"),
+ 'cannotdelete' => array('code' => 'cantdelete', 'info' => "Couldn't delete ``\$1''. Maybe it was deleted already by someone else"),
+ 'notanarticle' => array('code' => 'missingtitle', 'info' => "The page you requested doesn't exist"),
+ 'selfmove' => array('code' => 'selfmove', 'info' => "Can't move a page to itself"),
+ 'immobile_namespace' => array('code' => 'immobilenamespace', 'info' => "You tried to move pages from or to a namespace that is protected from moving"),
+ 'articleexists' => array('code' => 'articleexists', 'info' => "The destination article already exists and is not a redirect to the source article"),
+ 'protectedpage' => array('code' => 'protectedpage', 'info' => "You don't have permission to perform this move"),
+ 'hookaborted' => array('code' => 'hookaborted', 'info' => "The modification you tried to make was aborted by an extension hook"),
+ 'cantmove-titleprotected' => array('code' => 'protectedtitle', 'info' => "The destination article has been protected from creation"),
+ 'imagenocrossnamespace' => array('code' => 'nonfilenamespace', 'info' => "Can't move a file to a non-file namespace"),
+ 'imagetypemismatch' => array('code' => 'filetypemismatch', 'info' => "The new file extension doesn't match its type"),
+ // 'badarticleerror' => shouldn't happen
+ // 'badtitletext' => shouldn't happen
+ 'ip_range_invalid' => array('code' => 'invalidrange', 'info' => "Invalid IP range"),
+ 'range_block_disabled' => array('code' => 'rangedisabled', 'info' => "Blocking IP ranges has been disabled"),
+ 'nosuchusershort' => array('code' => 'nosuchuser', 'info' => "The user you specified doesn't exist"),
+ 'badipaddress' => array('code' => 'invalidip', 'info' => "Invalid IP address specified"),
+ 'ipb_expiry_invalid' => array('code' => 'invalidexpiry', 'info' => "Invalid expiry time"),
+ 'ipb_already_blocked' => array('code' => 'alreadyblocked', 'info' => "The user you tried to block was already blocked"),
+ 'ipb_blocked_as_range' => array('code' => 'blockedasrange', 'info' => "IP address ``\$1'' was blocked as part of range ``\$2''. You can't unblock the IP invidually, but you can unblock the range as a whole."),
+ 'ipb_cant_unblock' => array('code' => 'cantunblock', 'info' => "The block you specified was not found. It may have been unblocked already"),
+
+ // API-specific messages
+ 'missingparam' => array('code' => 'no$1', 'info' => "The \$1 parameter must be set"),
+ 'invalidtitle' => array('code' => 'invalidtitle', 'info' => "Bad title ``\$1''"),
+ 'invaliduser' => array('code' => 'invaliduser', 'info' => "Invalid username ``\$1''"),
+ 'invalidexpiry' => array('code' => 'invalidexpiry', 'info' => "Invalid expiry time"),
+ 'pastexpiry' => array('code' => 'pastexpiry', 'info' => "Expiry time is in the past"),
+ 'create-titleexists' => array('code' => 'create-titleexists', 'info' => "Existing titles can't be protected with 'create'"),
+ 'missingtitle-createonly' => array('code' => 'missingtitle-createonly', 'info' => "Missing titles can only be protected with 'create'"),
+ 'cantblock' => array('code' => 'cantblock', 'info' => "You don't have permission to block users"),
+ 'canthide' => array('code' => 'canthide', 'info' => "You don't have permission to hide user names from the block log"),
+ 'cantblock-email' => array('code' => 'cantblock-email', 'info' => "You don't have permission to block users from sending e-mail through the wiki"),
+ 'unblock-notarget' => array('code' => 'notarget', 'info' => "Either the id or the user parameter must be set"),
+ 'unblock-idanduser' => array('code' => 'idanduser', 'info' => "The id and user parameters can't be used together"),
+ 'cantunblock' => array('code' => 'permissiondenied', 'info' => "You don't have permission to unblock users"),
+ 'cannotundelete' => array('code' => 'cantundelete', 'info' => "Couldn't undelete: the requested revisions may not exist, or may have been undeleted already"),
+ 'permdenied-undelete' => array('code' => 'permissiondenied', 'info' => "You don't have permission to restore deleted revisions"),
+ 'createonly-exists' => array('code' => 'articleexists', 'info' => "The article you tried to create has been created already"),
+ 'nocreate-missing' => array('code' => 'missingtitle', 'info' => "The article you tried to edit doesn't exist"),
+
+ // ApiEditPage messages
+ 'noimageredirect-anon' => array('code' => 'noimageredirect-anon', 'info' => "Anonymous users can't create image redirects"),
+ 'noimageredirect-logged' => array('code' => 'noimageredirect', 'info' => "You don't have permission to create image redirects"),
+ 'spamdetected' => array('code' => 'spamdetected', 'info' => "Your edit was refused because it contained a spam fragment: ``\$1''"),
+ 'filtered' => array('code' => 'filtered', 'info' => "The filter callback function refused your edit"),
+ 'contenttoobig' => array('code' => 'contenttoobig', 'info' => "The content you supplied exceeds the article size limit of \$1 bytes"),
+ 'noedit-anon' => array('code' => 'noedit-anon', 'info' => "Anonymous users can't edit pages"),
+ 'noedit' => array('code' => 'noedit', 'info' => "You don't have permission to edit pages"),
+ 'wasdeleted' => array('code' => 'pagedeleted', 'info' => "The page has been deleted since you fetched its timestamp"),
+ 'blankpage' => array('code' => 'emptypage', 'info' => "Creating new, empty pages is not allowed"),
+ 'editconflict' => array('code' => 'editconflict', 'info' => "Edit conflict detected"),
+ 'hashcheckfailed' => array('code' => 'badmd5', 'info' => "The supplied MD5 hash was incorrect"),
+ 'missingtext' => array('code' => 'notext', 'info' => "One of the text, appendtext and prependtext parameters must be set"),
+ );
+
+ /**
+ * Output the error message related to a certain array
+ * @param array $error Element of a getUserPermissionsErrors()
+ */
+ public function dieUsageMsg($error) {
+ $key = array_shift($error);
+ if(isset(self::$messageMap[$key]))
+ $this->dieUsage(wfMsgReplaceArgs(self::$messageMap[$key]['info'], $error), wfMsgReplaceArgs(self::$messageMap[$key]['code'], $error));
+ // If the key isn't present, throw an "unknown error"
+ $this->dieUsageMsg(array('unknownerror', $key));
+ }
+
+ /**
+ * Internal code errors should be reported with this method
+ */
+ protected static function dieDebug($method, $message) {
+ wfDebugDieBacktrace("Internal error in $method: $message");
+ }
+
+ /**
+ * Indicates if API needs to check maxlag
+ */
+ public function shouldCheckMaxlag() {
+ return true;
+ }
+
+ /**
+ * Indicates if this module requires edit mode
+ */
+ public function isEditMode() {
+ return false;
+ }
+
+ /**
+ * Indicates whether this module must be called with a POST request
+ */
+ public function mustBePosted() {
+ return false;
+ }
+
+
+ /**
+ * Profiling: total module execution time
+ */
+ private $mTimeIn = 0, $mModuleTime = 0;
+
+ /**
+ * Start module profiling
+ */
+ public function profileIn() {
+ if ($this->mTimeIn !== 0)
+ ApiBase :: dieDebug(__METHOD__, 'called twice without calling profileOut()');
+ $this->mTimeIn = microtime(true);
+ wfProfileIn($this->getModuleProfileName());
+ }
+
+ /**
+ * End module profiling
+ */
+ public function profileOut() {
+ if ($this->mTimeIn === 0)
+ ApiBase :: dieDebug(__METHOD__, 'called without calling profileIn() first');
+ if ($this->mDBTimeIn !== 0)
+ ApiBase :: dieDebug(__METHOD__, 'must be called after database profiling is done with profileDBOut()');
+
+ $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();
+ $this->profileOut();
+ }
+ }
+
+ /**
+ * Total time the module was executed
+ */
+ public function getProfileTime() {
+ if ($this->mTimeIn !== 0)
+ ApiBase :: dieDebug(__METHOD__, 'called without calling profileOut() first');
+ return $this->mModuleTime;
+ }
+
+ /**
+ * Profiling: database execution time
+ */
+ private $mDBTimeIn = 0, $mDBTime = 0;
+
+ /**
+ * Start module profiling
+ */
+ public function profileDBIn() {
+ if ($this->mTimeIn === 0)
+ ApiBase :: dieDebug(__METHOD__, 'must be called while profiling the entire module with profileIn()');
+ if ($this->mDBTimeIn !== 0)
+ ApiBase :: dieDebug(__METHOD__, 'called twice without calling profileDBOut()');
+ $this->mDBTimeIn = microtime(true);
+ wfProfileIn($this->getModuleProfileName(true));
+ }
+
+ /**
+ * End database profiling
+ */
+ public function profileDBOut() {
+ if ($this->mTimeIn === 0)
+ ApiBase :: dieDebug(__METHOD__, 'must be called while profiling the entire module with profileIn()');
+ if ($this->mDBTimeIn === 0)
+ ApiBase :: dieDebug(__METHOD__, 'called without calling profileDBIn() first');
+
+ $time = microtime(true) - $this->mDBTimeIn;
+ $this->mDBTimeIn = 0;
+
+ $this->mDBTime += $time;
+ $this->getMain()->mDBTime += $time;
+ wfProfileOut($this->getModuleProfileName(true));
+ }
+
+ /**
+ * Total time the module used the database
+ */
+ public function getProfileDBTime() {
+ if ($this->mDBTimeIn !== 0)
+ 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";
+ }
+
+
+ /**
+ * Returns a String that identifies the version of this class.
+ */
+ public static function getBaseVersion() {
+ return __CLASS__ . ': $Id$';
+ }
+}