This is the main API class, used for both external and internal processing. More...

Inheritance diagram for ApiMain:

[legend]

Collaboration diagram for ApiMain:

[legend]

Public Member Functions
	__construct ( $context=null, $enableWrite=false)
	Constructs an instance of ApiMain that utilizes the module and format specified by $request. More...

	canApiHighLimits ()
	Check whether the current user is allowed to use high limits. More...

	createPrinterByName ( $format)
	Create an instance of an output formatter by its name. More...

	execute ()
	Execute api request. More...

	getAllowedParams ()
	See ApiBase for description. More...

	getCheck ( $name)
	Get a boolean request value, and register the fact that the parameter was used, for logging. More...

	getContinuationManager ()
	Get the continuation manager. More...

	getErrorFormatter ()
	Get the ApiErrorFormatter object associated with current request. More...

	getModule ()
	Get the API module object. More...

	getModuleManager ()
	Overrides to return this instance's module manager. More...

	getPrinter ()
	Get the result formatter object. More...

	getResult ()
	Get the ApiResult object associated with current request. More...

	getUpload ( $name)
	Get a request upload, and register the fact that it was used, for logging. More...

	getUserAgent ()
	Fetches the user agent used for this request. More...

	getVal ( $name, $default=null)
	Get a request value, and register the fact that it was used, for logging. More...

	isInternalMode ()
	Return true if the API was started by other PHP code using FauxRequest. More...

	isReadMode ()

	lacksSameOriginSecurity ()
	Get the security flag for the current request. More...

	markParamsSensitive ( $params)
	Mark parameters as sensitive. More...

	markParamsUsed ( $params)
	Mark parameters as used. More...

	modifyHelp (array &$help, array $options, array &$tocData)

	setCacheControl ( $directives)
	Set directives (key/value pairs) for the Cache-Control header. More...

	setCacheMaxAge ( $maxage)
	Set how long the response should be cached. More...

	setCacheMode ( $mode)
	Set the type of caching headers which will be sent. More...

	setContinuationManager (ApiContinuationManager $manager=null)
	Set the continuation manager. More...

Public Member Functions inherited from ApiBase
	__construct (ApiMain $mainModule, $moduleName, $modulePrefix='')

	execute ()
	Evaluates the parameters, performs the requested query, and sets up the result. More...

	getModuleManager ()
	Get the module manager, or null if this module has no sub-modules. More...

	getCustomPrinter ()
	If the module may only be used with a certain format module, it should override this method to return an instance of that formatter. More...

	getHelpUrls ()
	Return links to more detailed help pages about the module. More...

	shouldCheckMaxlag ()
	Indicates if this module needs maxlag to be checked. More...

	isReadMode ()
	Indicates whether this module requires read rights. More...

	isWriteMode ()
	Indicates whether this module requires write mode. More...

	mustBePosted ()
	Indicates whether this module must be called with a POST request. More...

	isDeprecated ()
	Indicates whether this module is deprecated. More...

	isInternal ()
	Indicates whether this module is "internal" Internal API modules are not (yet) intended for 3rd party use and may be unstable. More...

	needsToken ()
	Returns the token type this module requires in order to execute. More...

	getConditionalRequestData ( $condition)
	Returns data for HTTP conditional request mechanisms. More...

	getModuleName ()
	Get the name of the module being executed by this instance. More...

	getModulePrefix ()
	Get parameter prefix (usually two letters or an empty string). More...

	getMain ()
	Get the main module. More...

	isMain ()
	Returns true if this module is the main module ($this === $this->mMainModule), false otherwise. More...

	getParent ()
	Get the parent of this module. More...

	lacksSameOriginSecurity ()
	Returns true if the current request breaks the same-origin policy. More...

	getModulePath ()
	Get the path to this module. More...

	getModuleFromPath ( $path)
	Get a module from its module path. More...

	getResult ()
	Get the result object. More...

	getErrorFormatter ()
	Get the error formatter. More...

	getContinuationManager ()
	Get the continuation manager. More...

	setContinuationManager (ApiContinuationManager $manager=null)
	Set the continuation manager. More...

	dynamicParameterDocumentation ()
	Indicate if the module supports dynamically-determined parameters that cannot be included in self::getAllowedParams(). More...

	encodeParamName ( $paramName)
	This method mangles parameter name based on the prefix supplied to the constructor. More...

	extractRequestParams ( $options=[])
	Using getAllowedParams(), this function 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. More...

	requireOnlyOneParameter ( $params, $required)
	Die if none or more than one of a certain set of parameters is set and not false. More...

	requireMaxOneParameter ( $params, $required)
	Die if more than one of a certain set of parameters is set and not false. More...

	requireAtLeastOneParameter ( $params, $required)
	Die if none of a certain set of parameters is set and not false. More...

	requirePostedParameters ( $params, $prefix='prefix')
	Die if any of the specified parameters were found in the query part of the URL rather than the post body. More...

	getTitleOrPageId ( $params, $load=false)
	Get a WikiPage object from a title or pageid param, if possible. More...

	getTitleFromTitleOrPageId ( $params)
	Get a Title object from a title or pageid param, if possible. More...

	validateToken ( $token, array $params)
	Validate the supplied token. More...

	getWatchlistUser ( $params)
	Gets the user for whom to get the watchlist. More...

	errorArrayToStatus (array $errors, User $user=null)
	Turn an array of message keys or key+param arrays into a Status. More...

	addBlockInfoToStatus (StatusValue $status, User $user=null)
	Add block info to block messages in a Status. More...

	addWarning ( $msg, $code=null, $data=null)
	Add a warning for this module. More...

	addDeprecation ( $msg, $feature, $data=[])
	Add a deprecation warning for this module. More...

	addError ( $msg, $code=null, $data=null)
	Add an error for this module without aborting. More...

	addMessagesFromStatus (StatusValue $status, $types=[ 'warning', 'error'], array $filter=[])
	Add warnings and/or errors from a Status. More...

	dieWithError ( $msg, $code=null, $data=null, $httpCode=null)
	Abort execution with an error. More...

	dieWithException ( $exception, array $options=[])
	Abort execution with an error derived from an exception. More...

	dieBlocked (Block $block)
	Throw an ApiUsageException, which will (if uncaught) call the main module's error handler and die with an error message including block info. More...

	dieStatus (StatusValue $status)
	Throw an ApiUsageException based on the Status object. More...

	dieReadOnly ()
	Helper function for readonly errors. More...

	checkUserRightsAny ( $rights, $user=null)
	Helper function for permission-denied errors. More...

	checkTitleUserPermissions (Title $title, $actions, $options=[])
	Helper function for permission-denied errors. More...

	dieWithErrorOrDebug ( $msg, $code=null, $data=null, $httpCode=null)
	Will only set a warning instead of failing if the global $wgDebugAPI is set to true. More...

	logFeatureUsage ( $feature)
	Write logging information for API features to a debug log, for usage analysis. More...

	getFinalSummary ()
	Get final module summary. More...

	getFinalDescription ()
	Get final module description, after hooks have had a chance to tweak it as needed. More...

	getFinalParams ( $flags=0)
	Get final list of parameters, after hooks have had a chance to tweak it as needed. More...

	getFinalParamDescription ()
	Get final parameter descriptions, after hooks have had a chance to tweak it as needed. More...

	modifyHelp (array &$help, array $options, array &$tocData)
	Called from ApiHelp before the pieces are joined together and returned. More...

Public Member Functions inherited from ContextSource
	canUseWikiPage ()
	Check whether a WikiPage object can be get with getWikiPage(). More...

	exportSession ()
	Export the resolved user IP, HTTP headers, user ID, and session ID. More...

	getConfig ()

	getContext ()
	Get the base IContextSource object. More...

	getLanguage ()

	getOutput ()

	getRequest ()

	getSkin ()

	getStats ()

	getTiming ()

	getTitle ()

	getUser ()

	getWikiPage ()
	Get the WikiPage object. More...

	msg ( $key)
	Get a Message object with context set Parameters are the same as wfMessage() More...

	setContext (IContextSource $context)

Static Public Member Functions
static	handleApiBeforeMainException ( $e)
	Handle an exception from the ApiBeforeMain hook. More...

Static Public Member Functions inherited from ApiBase
static	makeMessage ( $msg, IContextSource $context, array $params=null)
	Create a Message from a string or array. More...

static	truncateArray (&$arr, $limit)
	Truncate an array to a certain length. More...

Public Attributes
	$mErrorFormatter = null

	$mResult

	$mSquidMaxage

const	API_DEFAULT_FORMAT = 'jsonfm'
	When no format parameter is given, this format will be used. More...

const	API_DEFAULT_USELANG = 'user'
	When no uselang parameter is given, this language will be used. More...

Public Attributes inherited from ApiBase
string	$mModulePrefix

const	ALL_DEFAULT_STRING = '*'

const	GET_VALUES_FOR_HELP = 1
	getAllowedParams() flag: When set, the result could take longer to generate, but should be more thorough. More...

const	LIMIT_BIG1 = 500
	Fast query, standard limit. More...

const	LIMIT_BIG2 = 5000
	Fast query, apihighlimits limit. More...

const	LIMIT_SML1 = 50
	Slow query, standard limit. More...

const	LIMIT_SML2 = 500
	Slow query, apihighlimits limit. More...

const	PARAM_DFLT = 0
	(null\|boolean\|integer\|string) Default value of the parameter. More...

const	PARAM_ISMULTI = 1
	(boolean) Accept multiple pipe-separated values for this parameter (e.g. More...

const	PARAM_TYPE = 2
	(string\|string[]) Either an array of allowed value strings, or a string type as described below. More...

const	PARAM_MAX = 3
	(integer) Max value allowed for the parameter, for PARAM_TYPE 'integer' and 'limit'. More...

const	PARAM_MAX2 = 4
	(integer) Max value allowed for the parameter for users with the apihighlimits right, for PARAM_TYPE 'limit'. More...

const	PARAM_MIN = 5
	(integer) Lowest value allowed for the parameter, for PARAM_TYPE 'integer' and 'limit'. More...

const	PARAM_ALLOW_DUPLICATES = 6
	(boolean) Allow the same value to be set more than once when PARAM_ISMULTI is true? More...

const	PARAM_DEPRECATED = 7
	(boolean) Is the parameter deprecated (will show a warning)? More...

const	PARAM_REQUIRED = 8
	(boolean) Is the parameter required? More...

const	PARAM_RANGE_ENFORCE = 9
	(boolean) For PARAM_TYPE 'integer', enforce PARAM_MIN and PARAM_MAX? More...

const	PARAM_HELP_MSG = 10
	(string\|array\|Message) Specify an alternative i18n documentation message for this parameter. More...

const	PARAM_HELP_MSG_APPEND = 11
	((string\|array\|Message)[]) Specify additional i18n messages to append to the normal message for this parameter. More...

const	PARAM_HELP_MSG_INFO = 12
	(array) Specify additional information tags for the parameter. More...

const	PARAM_VALUE_LINKS = 13
	(string[]) When PARAM_TYPE is an array, this may be an array mapping those values to page titles which will be linked in the help. More...

const	PARAM_HELP_MSG_PER_VALUE = 14
	((string\|array\|Message)[]) When PARAM_TYPE is an array, this is an array mapping those values to $msg for ApiBase::makeMessage(). More...

const	PARAM_SUBMODULE_MAP = 15
	(string[]) When PARAM_TYPE is 'submodule', map parameter values to submodule paths. More...

const	PARAM_SUBMODULE_PARAM_PREFIX = 16
	(string) When PARAM_TYPE is 'submodule', used to indicate the 'g' prefix added by ApiQueryGeneratorBase (and similar if anything else ever does that). More...

const	PARAM_ALL = 17
	(boolean\|string) When PARAM_TYPE has a defined set of values and PARAM_ISMULTI is true, this allows for an asterisk ('*') to be passed in place of a pipe-separated list of every possible value. More...

const	PARAM_EXTRA_NAMESPACES = 18
	(int[]) When PARAM_TYPE is 'namespace', include these as additional possible values. More...

const	PARAM_SENSITIVE = 19
	(boolean) Is the parameter sensitive? Note 'password'-type fields are always sensitive regardless of the value of this field. More...

const	PARAM_DEPRECATED_VALUES = 20
	(array) When PARAM_TYPE is an array, this indicates which of the values are deprecated. More...

const	PARAM_ISMULTI_LIMIT1 = 21
	(integer) Maximum number of values, for normal users. More...

const	PARAM_ISMULTI_LIMIT2 = 22
	(integer) Maximum number of values, for users with the apihighimits right. More...

const	PARAM_MAX_BYTES = 23
	(integer) Maximum length of a string in bytes (in UTF-8 encoding). More...

const	PARAM_MAX_CHARS = 24
	(integer) Maximum length of a string in characters (unicode codepoints). More...

const	PARAM_TEMPLATE_VARS = 25
	(array) Indicate that this is a templated parameter, and specify replacements. More...

Protected Member Functions
	addRequestedFields ( $force=[])
	Add requested fields to the result. More...

	checkAsserts ( $params)
	Check asserts of the user's rights. More...

	checkConditionalRequestHeaders ( $module)
	Check selected RFC 7232 precondition headers. More...

	checkExecutePermissions ( $module)
	Check for sufficient permissions to execute. More...

	checkMaxLag ( $module, $params)
	Check the max lag if necessary. More...

	checkReadOnly ( $module)
	Check if the DB is read-only for this user. More...

	encodeRequestLogValue ( $s)
	Encode a value in a format suitable for a space-separated log line. More...

	errorMessagesFromException ( $e, $type='error')
	Create an error message for the given exception. More...

	executeAction ()
	Execute the actual module, without any error handling. More...

	executeActionWithErrorHandling ()
	Execute an action, and in case of an error, erase whatever partial results have been accumulated, and replace it with an error message and a help screen. More...

	getExamplesMessages ()

	getParamsUsed ()
	Get the request parameters used in the course of the preceding execute() request. More...

	getSensitiveParams ()
	Get the request parameters that should be considered sensitive. More...

	handleCORS ()
	Check the &origin= query parameter against the Origin: HTTP header and respond appropriately. More...

	handleException ( $e)
	Handle an exception as an API response. More...

	logRequest ( $time, $e=null)
	Log the preceding request. More...

	printResult ( $httpCode=0)
	Print results using the current printer. More...

	reportUnusedParams ()
	Report unused parameters, so the client gets a hint in case it gave us parameters we don't know, for example in case of spelling mistakes or a missing 'g' prefix for generators. More...

	sendCacheHeaders ( $isError)
	Send caching headers. More...

	setRequestExpectations (ApiBase $module)
	Set database connection, query, and write expectations given this module request. More...

	setupExecuteAction ()
	Set up for the execution. More...

	setupExternalResponse ( $module, $params)
	Check POST for external response and setup result printer. More...

	setupModule ()
	Set up the module for response. More...

	substituteResultWithError ( $e)
	Replace the result data with the information about an exception. More...

Protected Member Functions inherited from ApiBase
	getExamplesMessages ()
	Returns usage examples for this module. More...

	getAllowedParams ()
	Returns an array of allowed parameters (parameter name) => (default value) or (parameter name) => (array with PARAM_* constants as keys) Don't call this function directly: use getFinalParams() to allow hooks to modify parameters as needed. More...

	getWebUITokenSalt (array $params)
	Fetch the salt used in the Web UI corresponding to this module. More...

	getDB ()
	Gets a default replica DB connection object. More...

	getParameter ( $paramName, $parseLimit=true)
	Get a value for the given parameter. More...

	getWatchlistValue ( $watchlist, $titleObj, $userOption=null)
	Return true if we're to watch the page, false if not, null if no change. More...

	getParameterFromSettings ( $paramName, $paramSettings, $parseLimit)
	Using the settings determine the value for the given parameter. More...

	handleParamNormalization ( $paramName, $value, $rawValue)
	Handle when a parameter was Unicode-normalized. More...

	explodeMultiValue ( $value, $limit)
	Split a multi-valued parameter string, like explode() More...

	parseMultiValue ( $valueName, $value, $allowMultiple, $allowedValues, $allSpecifier=null, $limit1=null, $limit2=null)
	Return an array of values that were given in a 'a\|b\|c' notation, after it optionally validates them against the list allowed values. More...

	validateLimit ( $paramName, &$value, $min, $max, $botMax=null, $enforceLimits=false)
	Validate the value against the minimum and user/bot maximum limits. More...

	validateTimestamp ( $value, $encParamName)
	Validate and normalize parameters of type 'timestamp'. More...

	setWatch ( $watch, $titleObj, $userOption=null)
	Set a watch (or unwatch) based the based on a watchlist parameter. More...

	useTransactionalTimeLimit ()
	Call wfTransactionalTimeLimit() if this request was POSTed. More...

	filterIDs ( $fields, array $ids)
	Filter out-of-range values from a list of positive integer IDs. More...

	dieContinueUsageIf ( $condition)
	Die with the 'badcontinue' error. More...

	getSummaryMessage ()
	Return the summary message. More...

	getExtendedDescription ()
	Return the extended help text message. More...

	getHelpFlags ()
	Generates the list of flags for the help screen and for action=paraminfo. More...

	getModuleSourceInfo ()
	Returns information about the source of this module, if known. More...

	getDescription ()
	Returns the description string for this module. More...

	getParamDescription ()
	Returns an array of parameter descriptions. More...

	getExamples ()
	Returns usage examples for this module. More...

	getDescriptionMessage ()
	Return the description message. More...

Static Protected Member Functions
static	matchOrigin ( $value, $rules, $exceptions)
	Attempt to match an Origin header against a set of rules and a set of exceptions. More...

static	matchRequestedHeaders ( $requestedHeaders)
	Attempt to validate the value of Access-Control-Request-Headers against a list of headers that we allow the follow up request to send. More...

static	wildcardToRegex ( $wildcard)
	Helper function to convert wildcard string into a regex '*' => '. More...

Static Protected Member Functions inherited from ApiBase
static	dieDebug ( $method, $message)
	Internal code errors should be reported with this method. More...

Private Member Functions
	checkBotReadOnly ()
	Check whether we are readonly for bots. More...

	createErrorPrinter ()
	Create the printer for error output. More...

	getMaxLag ()

Private Attributes
bool null	$lacksSameOriginSecurity = null
	Cached return value from self::lacksSameOriginSecurity() More...

	$mAction

	$mCacheControl = []

	$mCacheMode = 'private'

	$mCanApiHighLimits = null

ApiContinuationManager null	$mContinuationManager

	$mEnableWrite

	$mInternalMode

ApiBase	$mModule

	$mModuleMgr

	$mParamsSensitive = []

	$mParamsUsed = []

static static static ApiFormatBase	$mPrinter

Static Private Attributes
static static	$Formats
	List of available formats: format name => format class. More...

static	$Modules
	List of available modules: action name => module class. More...

static static static	$mRights
	List of user roles that are specifically relevant to the API. More...

Detailed Description

This is the main API class, used for both external and internal processing.

When executed, it will create the requested formatter object, instantiate and execute an object associated with the needed action, and use formatter to print results. In case of an exception, an error message will be printed using the same formatter.

To use API from another application, run it using FauxRequest object, in which case any internal exceptions will not be handled but passed up to the caller. After successful execution, use getResult() for the resulting data.

Definition at line 41 of file ApiMain.php.

Constructor & Destructor Documentation

◆ __construct()

ApiMain::__construct	(	$context = `null`,
		$enableWrite = `false`
	)

Constructs an instance of ApiMain that utilizes the module and format specified by $request.

Parameters

IContextSource \| WebRequest \| null	$context	If this is an instance of FauxRequest, errors are thrown and no printing occurs
bool	$enableWrite	Should be set to true if the api may modify data

Definition at line 170 of file ApiMain.php.

References $code, ContextSource\$context, $request, $wgLang, Language\factory(), ContextSource\getConfig(), ContextSource\getContext(), WikiMap\getCurrentWikiDbDomain(), getErrorFormatter(), ContextSource\getLanguage(), RequestContext\getMain(), ContextSource\getRequest(), getUserAgent(), lacksSameOriginSecurity(), null, Hooks\run(), RequestContext\sanitizeLangCode(), ContextSource\setContext(), User, and wfDebug().

Member Function Documentation

◆ addRequestedFields()

ApiMain::addRequestedFields ( $force = [] )

protected

Add requested fields to the result.

Parameters

string[]

$force Which fields to force even if not requested. Accepted values are:

servedby

Definition at line 1144 of file ApiMain.php.

References ContextSource\getConfig(), getErrorFormatter(), ContextSource\getLanguage(), ApiBase\getParameter(), getResult(), ApiResult\NO_SIZE_CHECK, null, wfHostname(), and wfTimestamp().

Referenced by setupExecuteAction(), and substituteResultWithError().

◆ canApiHighLimits()

ApiMain::canApiHighLimits ( )

Check whether the current user is allowed to use high limits.

Returns: bool

Definition at line 2067 of file ApiMain.php.

References $mCanApiHighLimits, and ContextSource\getUser().

◆ checkAsserts()

ApiMain::checkAsserts ( $params )

protected

Check asserts of the user's rights.

Parameters

array $params

Definition at line 1501 of file ApiMain.php.

References $params, $user, ApiBase\dieWithError(), ContextSource\getUser(), User\newFromName(), and wfEscapeWikiText().

Referenced by executeAction().

◆ checkBotReadOnly()

ApiMain::checkBotReadOnly ( )

private

Check whether we are readonly for bots.

Definition at line 1462 of file ApiMain.php.

References as, ApiBase\dieWithError(), ContextSource\getConfig(), and wfDebugLog().

Referenced by checkReadOnly().

◆ checkConditionalRequestHeaders()

ApiMain::checkConditionalRequestHeaders ( $module )

protected

Check selected RFC 7232 precondition headers.

RFC 7232 envisions a particular model where you send your request to "a resource", and for write requests that you can read "the resource" by changing the method to GET. When the API receives a GET request, it works out even though "the resource" from RFC 7232's perspective might be many resources from MediaWiki's perspective. But it totally fails for a POST, since what HTTP sees as "the resource" is probably just "/api.php" with all the interesting bits in the body.

Therefore, we only support RFC 7232 precondition headers for GET (and HEAD). That means we don't need to bother with If-Match and If-Unmodified-Since since they only apply to modification requests.

And since we don't support Range, If-Range is ignored too.

Since: 1.26

Parameters

ApiBase $module Api module being used

Returns: bool True on success, false should exit immediately

Definition at line 1317 of file ApiMain.php.

References $e, $s, $value, ContextSource\getConfig(), WebRequest\GETHEADER_LIST, ContextSource\getOutput(), ContextSource\getRequest(), ContextSource\getUser(), null, Hooks\run(), wfClearOutputBuffers(), and wfTimestamp().

Referenced by executeAction().

◆ checkExecutePermissions()

ApiMain::checkExecutePermissions ( $module )

protected

Check for sufficient permissions to execute.

Parameters

ApiBase $module An Api module

Definition at line 1415 of file ApiMain.php.

References $user, checkReadOnly(), ApiBase\dieWithError(), ContextSource\getRequest(), ContextSource\getUser(), User\isEveryoneAllowed(), and Hooks\run().

Referenced by executeAction().

◆ checkMaxLag()

ApiMain::checkMaxLag	(	$module,
		$params
	)

protected

Check the max lag if necessary.

Parameters

ApiBase	$module	Api module being used
array	$params	Array an array containing the request parameters.

Returns: bool True on success, false should exit immediately

Definition at line 1271 of file ApiMain.php.

References $params, $response, ApiBase\dieWithError(), ContextSource\getConfig(), getMaxLag(), and ContextSource\getRequest().

Referenced by executeAction().

◆ checkReadOnly()

ApiMain::checkReadOnly ( $module )

protected

Check if the DB is read-only for this user.

Parameters

ApiBase $module An Api module

Definition at line 1446 of file ApiMain.php.

References checkBotReadOnly(), ApiBase\dieReadOnly(), ContextSource\getUser(), and wfReadOnly().

Referenced by checkExecutePermissions().

◆ createErrorPrinter()

ApiMain::createErrorPrinter ( )

private

Create the printer for error output.

Definition at line 991 of file ApiMain.php.

References $value, createPrinterByName(), and ContextSource\getRequest().

Referenced by handleException().

◆ createPrinterByName()

ApiMain::createPrinterByName ( $format )

Create an instance of an output formatter by its name.

Parameters

string $format

Returns: ApiFormatBase

Definition at line 484 of file ApiMain.php.

References ApiBase\dieWithError(), null, and wfEscapeWikiText().

Referenced by ApiFormatRaw\__construct(), createErrorPrinter(), and setupExternalResponse().

◆ encodeRequestLogValue()

ApiMain::encodeRequestLogValue ( $s )

protected

Encode a value in a format suitable for a space-separated log line.

Parameters

string $s

Returns: string

Definition at line 1716 of file ApiMain.php.

References $s.

Referenced by logRequest().

◆ errorMessagesFromException()

ApiMain::errorMessagesFromException	(	$e,
		$type = `'error'`
	)

protected

Create an error message for the given exception.

If an ApiUsageException, errors/warnings will be extracted from the embedded StatusValue.

Any other exception will be returned with a generic code and wrapper text around the exception's (presumably English) message as a single error (no warnings).

Parameters

Exception \| Throwable	$e
string	$type	'error' or 'warning'

Returns: ApiMessage[]

Since: 1.27

Definition at line 1022 of file ApiMain.php.

References $code, $data, $e, $messages, $params, $type, as, ApiMessage\create(), ContextSource\getConfig(), WebRequest\getRequestId(), Message\newFromSpecifier(), and wfEscapeWikiText().

Referenced by logRequest(), and substituteResultWithError().

◆ execute()

ApiMain::execute ( )

Execute api request.

Any errors will be handled if the API was called by the remote client.

Definition at line 498 of file ApiMain.php.

References executeAction(), and executeActionWithErrorHandling().

◆ executeAction()

ApiMain::executeAction ( )

protected

Execute the actual module, without any error handling.

Definition at line 1565 of file ApiMain.php.

References $params, MWDebug\appendDebugInfoToApiResult(), checkAsserts(), checkConditionalRequestHeaders(), checkExecutePermissions(), checkMaxLag(), ContextSource\getContext(), getResult(), printResult(), reportUnusedParams(), Hooks\run(), setRequestExpectations(), setupExecuteAction(), setupExternalResponse(), and setupModule().

Referenced by execute(), and executeActionWithErrorHandling().

◆ executeActionWithErrorHandling()

ApiMain::executeActionWithErrorHandling ( )

protected

Execute an action, and in case of an error, erase whatever partial results have been accumulated, and replace it with an error message and a help screen.

Definition at line 510 of file ApiMain.php.

References $e, $t, executeAction(), ContextSource\getContext(), ContextSource\getRequest(), handleCORS(), handleException(), logRequest(), MediaWiki\preOutputCommit(), and sendCacheHeaders().

Referenced by execute().

◆ getAllowedParams()

ApiMain::getAllowedParams ( )

See ApiBase for description.

Returns: array

Definition at line 1865 of file ApiMain.php.

References null, ApiBase\PARAM_DFLT, and ApiBase\PARAM_TYPE.

◆ getCheck()

ApiMain::getCheck ( $name )

Get a boolean request value, and register the fact that the parameter was used, for logging.

Parameters

string $name

Returns: bool

Definition at line 1790 of file ApiMain.php.

References $name, getVal(), and null.

◆ getContinuationManager()

ApiMain::getContinuationManager ( )

Get the continuation manager.

Returns: ApiContinuationManager|null

Definition at line 359 of file ApiMain.php.

References $mContinuationManager.

◆ getErrorFormatter()

ApiMain::getErrorFormatter ( )

Get the ApiErrorFormatter object associated with current request.

Returns: ApiErrorFormatter

Definition at line 351 of file ApiMain.php.

References $mErrorFormatter.

Referenced by __construct(), addRequestedFields(), and substituteResultWithError().

◆ getExamplesMessages()

ApiMain::getExamplesMessages ( )

protected

Definition at line 1914 of file ApiMain.php.

◆ getMaxLag()

ApiMain::getMaxLag ( )

private

Returns: array

Definition at line 1237 of file ApiMain.php.

References ContextSource\getConfig(), Hooks\runWithoutAbort(), JobQueueGroup\singleton(), and wfHostname().

Referenced by checkMaxLag().

◆ getModule()

ApiMain::getModule ( )

Get the API module object.

Only works after executeAction()

Returns: ApiBase

Definition at line 382 of file ApiMain.php.

References $mModule.

◆ getModuleManager()

ApiMain::getModuleManager ( )

Overrides to return this instance's module manager.

Returns: ApiModuleManager

Definition at line 2079 of file ApiMain.php.

References $mModuleMgr.

Referenced by ApiStructureTest\provideDocumentationExists(), and ApiStructureTest\provideParameterConsistency().

◆ getParamsUsed()

ApiMain::getParamsUsed ( )

protected

Get the request parameters used in the course of the preceding execute() request.

Returns: array

Definition at line 1733 of file ApiMain.php.

Referenced by logRequest(), and reportUnusedParams().

◆ getPrinter()

ApiMain::getPrinter ( )

Get the result formatter object.

Only works after setupExecuteAction()

Returns: ApiFormatBase

Definition at line 391 of file ApiMain.php.

References $mPrinter.

◆ getResult()

ApiMain::getResult ( )

Get the ApiResult object associated with current request.

Returns: ApiResult

Definition at line 308 of file ApiMain.php.

References $mResult.

Referenced by addRequestedFields(), executeAction(), and substituteResultWithError().

◆ getSensitiveParams()

ApiMain::getSensitiveParams ( )

protected

Get the request parameters that should be considered sensitive.

Since: 1.29

Returns: array

Definition at line 1750 of file ApiMain.php.

Referenced by logRequest().

◆ getUpload()

ApiMain::getUpload ( $name )

Get a request upload, and register the fact that it was used, for logging.

Since: 1.21

Parameters

string $name Parameter name

Returns: WebRequestUpload

Definition at line 1801 of file ApiMain.php.

References $name, and ContextSource\getRequest().

◆ getUserAgent()

ApiMain::getUserAgent ( )

Fetches the user agent used for this request.

The value will be the combination of the 'Api-User-Agent' header (if any) and the standard User-Agent header (if any).

Returns: string

Definition at line 2091 of file ApiMain.php.

References ContextSource\getRequest().

Referenced by __construct(), and logRequest().

◆ getVal()

ApiMain::getVal	(	$name,
		$default = `null`
	)

Get a request value, and register the fact that it was used, for logging.

Parameters

string	$name
string \| null	$default

Returns: string|null

Definition at line 1769 of file ApiMain.php.

References $name, $ret, ApiBase\addWarning(), ContextSource\getRequest(), and null.

Referenced by getCheck().

◆ handleApiBeforeMainException()

static ApiMain::handleApiBeforeMainException ( $e )

static

Handle an exception from the ApiBeforeMain hook.

This tries to print the exception as an API response, to be more friendly to clients. If it fails, it will rethrow the exception.

Since: 1.23

Parameters

Exception | Throwable $e

Exceptions

Exception|Throwable

Definition at line 637 of file ApiMain.php.

References $e, false, and RequestContext\getMain().

◆ handleCORS()

ApiMain::handleCORS ( )

protected

Check the &origin= query parameter against the Origin: HTTP header and respond appropriately.

If no origin parameter is present, nothing happens. If an origin parameter is present but doesn't match the Origin header, a 403 status code is set and false is returned. If the parameter and the header do match, the header is checked against $wgCrossSiteAJAXdomains and $wgCrossSiteAJAXdomainExceptions, and if the origin qualifies, the appropriate CORS headers are set. https://www.w3.org/TR/cors/#resource-requests https://www.w3.org/TR/cors/#resource-preflight-requests

Returns: bool False if the caller should abort (403 case), true otherwise (all other cases)

Definition at line 672 of file ApiMain.php.

References $request, $response, ContextSource\getConfig(), ContextSource\getOutput(), ApiBase\getParameter(), ContextSource\getRequest(), and null.

Referenced by executeActionWithErrorHandling().

◆ handleException()

ApiMain::handleException ( $e )

protected

Handle an exception as an API response.

Since: 1.23

Parameters

Exception | Throwable $e

Definition at line 567 of file ApiMain.php.

References $e, $response, ApiBase\addWarning(), as, createErrorPrinter(), ContextSource\getRequest(), ApiUsageException\getStatusValue(), null, printResult(), MWExceptionHandler\rollbackMasterChangesAndLog(), Hooks\run(), setCacheMode(), and substituteResultWithError().

Referenced by executeActionWithErrorHandling().

◆ isInternalMode()

ApiMain::isInternalMode ( )

Return true if the API was started by other PHP code using FauxRequest.

Returns: bool

Definition at line 299 of file ApiMain.php.

References $mInternalMode.

◆ isReadMode()

ApiMain::isReadMode ( )

Returns: bool

Definition at line 1856 of file ApiMain.php.

◆ lacksSameOriginSecurity()

ApiMain::lacksSameOriginSecurity ( )

Get the security flag for the current request.

Returns: bool

Definition at line 316 of file ApiMain.php.

References $lacksSameOriginSecurity, $request, false, ContextSource\getRequest(), null, and Hooks\run().

Referenced by __construct().

◆ logRequest()

ApiMain::logRequest	(	$time,
		$e = `null`
	)

protected

Log the preceding request.

Parameters

float	$time	Time in seconds
Exception \| Throwable \| null	$e	Exception caught while processing the request

Definition at line 1628 of file ApiMain.php.

References $e, $header, $name, $request, $time, $value, as, encodeRequestLogValue(), errorMessagesFromException(), ContextSource\getConfig(), WikiMap\getCurrentWikiDbDomain(), getParamsUsed(), ContextSource\getRequest(), WebRequest\getRequestId(), getSensitiveParams(), ContextSource\getUser(), getUserAgent(), UIDGenerator\newUUIDv1(), null, wfDebugLog(), wfTimestamp(), and wfUrlencode().

Referenced by executeActionWithErrorHandling().

◆ markParamsSensitive()

ApiMain::markParamsSensitive ( $params )

Mark parameters as sensitive.

Since: 1.29

Parameters

string|string[] $params

Definition at line 1759 of file ApiMain.php.

References $params, and array().

◆ markParamsUsed()

ApiMain::markParamsUsed ( $params )

Mark parameters as used.

Parameters

string|string[] $params

Definition at line 1741 of file ApiMain.php.

References $params, and array().

◆ matchOrigin()

static ApiMain::matchOrigin	(	$value,
		$rules,
		$exceptions
	)

staticprotected

Attempt to match an Origin header against a set of rules and a set of exceptions.

Parameters

string	$value	Origin header
array	$rules	Set of wildcard rules
array	$exceptions	Set of wildcard rules

Returns: bool True if $value matches a rule in $rules and doesn't match any rules in $exceptions, false otherwise

Definition at line 792 of file ApiMain.php.

References $value, and as.

◆ matchRequestedHeaders()

static ApiMain::matchRequestedHeaders ( $requestedHeaders )

staticprotected

Attempt to validate the value of Access-Control-Request-Headers against a list of headers that we allow the follow up request to send.

Parameters

string $requestedHeaders Comma separated list of HTTP headers

Returns: bool True if all requested headers are in the list of allowed headers

Definition at line 816 of file ApiMain.php.

References as.

◆ modifyHelp()

ApiMain::modifyHelp	(	array &	$help,
		array	$options,
		array &	$tocData
	)

Definition at line 1923 of file ApiMain.php.

References $header, $help, as, Html\closeElement(), Html\element(), Sanitizer\escapeIdForAttribute(), User\getGroupsWithPermission(), Sanitizer\ID_FALLBACK, Sanitizer\ID_PRIMARY, Message\listParam(), Linker\makeHeadline(), ContextSource\msg(), null, Html\openElement(), and Html\rawElement().

◆ printResult()

ApiMain::printResult ( $httpCode = 0 )

protected

Print results using the current printer.

Parameters

int $httpCode HTTP status code, or 0 to not change

Definition at line 1839 of file ApiMain.php.

References $mPrinter, ApiBase\addWarning(), ContextSource\getConfig(), and ApiFormatBase\initPrinter().

Referenced by executeAction(), and handleException().

◆ reportUnusedParams()

ApiMain::reportUnusedParams ( )

protected

Report unused parameters, so the client gets a hint in case it gave us parameters we don't know, for example in case of spelling mistakes or a missing 'g' prefix for generators.

Definition at line 1811 of file ApiMain.php.

References ApiBase\addWarning(), getParamsUsed(), ContextSource\getRequest(), and Message\listParam().

Referenced by executeAction().

◆ sendCacheHeaders()

ApiMain::sendCacheHeaders ( $isError )

protected

Send caching headers.

Parameters

bool $isError Whether an error response is being output

Since: 1.26 added $isError parameter

Definition at line 873 of file ApiMain.php.

References $name, $out, $response, $value, as, ContextSource\getConfig(), ContextSource\getOutput(), ApiBase\getParameter(), ContextSource\getRequest(), null, and wfTimestamp().

Referenced by executeActionWithErrorHandling().

◆ setCacheControl()

ApiMain::setCacheControl ( $directives )

Set directives (key/value pairs) for the Cache-Control header.

Boolean values will be formatted as such, by including or omitting without an equals sign.

Cache control values set here will only be used if the cache mode is not private, see setCacheMode().

Parameters

array $directives

Definition at line 473 of file ApiMain.php.

References $mCacheControl.

Referenced by setCacheMaxAge().

◆ setCacheMaxAge()

ApiMain::setCacheMaxAge ( $maxage )

Set how long the response should be cached.

Parameters

int $maxage

Definition at line 400 of file ApiMain.php.

References setCacheControl().

◆ setCacheMode()

ApiMain::setCacheMode ( $mode )

Set the type of caching headers which will be sent.

Parameters

string

$mode

One of:

'public': Cache this object in public caches, if the maxage or smaxage parameter is set, or if setCacheMaxAge() was called. If a maximum age is not provided by any of these means, the object will be private.
'private': Cache this object only in private client-side caches.
'anon-public-user-private': Make this object cacheable for logged-out users, but private for logged-in users. IMPORTANT: If this is set, it must be set consistently for a given URL, it cannot be set differently depending on things like the contents of the database, or whether the user is logged in.

If the wiki does not allow anonymous users to read it, the mode set here will be ignored, and private caching headers will always be sent. In other words, the "public" mode is equivalent to saying that the data sent is as public as a page view.

For user-dependent data, the private mode should generally be used. The anon-public-user-private mode should only be used where there is a particularly good performance reason for caching the anonymous response, but where the response to logged-in users may differ, or may contain private data.

If this function is never called, then the default will be the private mode.

Definition at line 432 of file ApiMain.php.

References ApiBase\getParameter(), User\isEveryoneAllowed(), and wfDebug().

Referenced by handleException().

◆ setContinuationManager()

ApiMain::setContinuationManager ( ApiContinuationManager $manager = null )

Set the continuation manager.

Parameters

ApiContinuationManager | null $manager

Definition at line 367 of file ApiMain.php.

References null.

◆ setRequestExpectations()

ApiMain::setRequestExpectations ( ApiBase $module )

protected

Set database connection, query, and write expectations given this module request.

Parameters

ApiBase $module

Definition at line 1609 of file ApiMain.php.

References ContextSource\getConfig(), ContextSource\getRequest(), Profiler\instance(), and ApiBase\isWriteMode().

Referenced by executeAction().

◆ setupExecuteAction()

ApiMain::setupExecuteAction ( )

protected

Set up for the execution.

Returns: array

Definition at line 1175 of file ApiMain.php.

References $params, addRequestedFields(), and ApiBase\extractRequestParams().

Referenced by executeAction().

◆ setupExternalResponse()

ApiMain::setupExternalResponse	(	$module,
		$params
	)

protected

Check POST for external response and setup result printer.

Parameters

ApiBase	$module	An Api module
array	$params	An array with the request parameters

Definition at line 1532 of file ApiMain.php.

References $params, $request, ApiBase\addDeprecation(), createPrinterByName(), ApiBase\dieWithError(), ApiBase\dieWithErrorOrDebug(), ContextSource\getRequest(), ContextSource\getUser(), and null.

Referenced by executeAction().

◆ setupModule()

ApiMain::setupModule ( )

protected

Set up the module for response.

Returns: ApiBase The module that will handle this action

Exceptions

MWException
ApiUsageException

Definition at line 1190 of file ApiMain.php.

References ApiBase\dieWithError(), null, true, and wfEscapeWikiText().

Referenced by executeAction().

◆ substituteResultWithError()

ApiMain::substituteResultWithError ( $e )

protected

Replace the result data with the information about an exception.

Parameters

Exception | Throwable $e

Returns: string[] Error codes

Definition at line 1060 of file ApiMain.php.

References $e, $link, $path, addRequestedFields(), as, errorMessagesFromException(), ContextSource\getConfig(), getErrorFormatter(), MWExceptionHandler\getRedactedTraceAsString(), getResult(), ApiErrorFormatter\isValidApiCode(), ContextSource\msg(), ApiResult\NO_SIZE_CHECK, null, text, wfExpandUrl(), and wfScript().

Referenced by handleException().

◆ wildcardToRegex()

static ApiMain::wildcardToRegex ( $wildcard )

staticprotected

Helper function to convert wildcard string into a regex '*' => '.

*?' '?' => '.'

Parameters

string $wildcard String with wildcards

Returns: string Regular expression

Definition at line 857 of file ApiMain.php.

Member Data Documentation

◆ $Formats

static ApiMain::$Formats

staticprivate

Initial value:

= [

'json' => ApiFormatJson::class

List of available formats: format name => format class.

Definition at line 113 of file ApiMain.php.

◆ $lacksSameOriginSecurity

bool null ApiMain::$lacksSameOriginSecurity = null

private

Cached return value from self::lacksSameOriginSecurity()

Definition at line 161 of file ApiMain.php.

Referenced by lacksSameOriginSecurity().

◆ $mAction

ApiMain::$mAction

private

Definition at line 149 of file ApiMain.php.

◆ $mCacheControl

ApiMain::$mCacheControl = []

private

Definition at line 156 of file ApiMain.php.

Referenced by setCacheControl().

◆ $mCacheMode

ApiMain::$mCacheMode = 'private'

private

Definition at line 155 of file ApiMain.php.

◆ $mCanApiHighLimits

ApiMain::$mCanApiHighLimits = null

private

Definition at line 2061 of file ApiMain.php.

Referenced by canApiHighLimits().

◆ $mContinuationManager

ApiContinuationManager null ApiMain::$mContinuationManager

private

Definition at line 148 of file ApiMain.php.

Referenced by getContinuationManager().

◆ $mEnableWrite

ApiMain::$mEnableWrite

private

Definition at line 150 of file ApiMain.php.

◆ $mErrorFormatter

ApiMain::$mErrorFormatter = null

Definition at line 146 of file ApiMain.php.

Referenced by getErrorFormatter().

◆ $mInternalMode

ApiMain::$mInternalMode

private

Definition at line 151 of file ApiMain.php.

Referenced by isInternalMode().

◆ $mModule

ApiBase ApiMain::$mModule

private

Definition at line 153 of file ApiMain.php.

Referenced by getModule().

◆ $mModuleMgr

ApiMain::$mModuleMgr

private

Definition at line 146 of file ApiMain.php.

Referenced by getModuleManager().

◆ $Modules

ApiMain::$Modules

staticprivate

Initial value:

= [

'login' => ApiLogin::class

List of available modules: action name => module class.

Definition at line 55 of file ApiMain.php.

◆ $mParamsSensitive

ApiMain::$mParamsSensitive = []

private

Definition at line 158 of file ApiMain.php.

◆ $mParamsUsed

ApiMain::$mParamsUsed = []

private

Definition at line 157 of file ApiMain.php.

◆ $mPrinter

static static ApiFormatBase ApiMain::$mPrinter

private

Initial value:

=> []
        ],
        'apihighlimits' => [
            'msg' => 'api-help-right-apihighlimits',
            'params' => [ ApiBase::LIMIT_SML2, ApiBase::LIMIT_BIG2 ]
        ]
    ]

Definition at line 133 of file ApiMain.php.

Referenced by getPrinter(), and printResult().

◆ $mResult

ApiMain::$mResult

Definition at line 146 of file ApiMain.php.

Referenced by getResult().

◆ $mRights

static static ApiMain::$mRights

staticprivate

Initial value:

= [
        'writeapi' => [
            'msg' => 'right-writeapi'

List of user roles that are specifically relevant to the API.

[ 'right' => [ 'msg' => 'Some message with a $1', 'params' => [ $someVarToSubst ] ], ];

Definition at line 130 of file ApiMain.php.

◆ $mSquidMaxage

ApiMain::$mSquidMaxage

Definition at line 151 of file ApiMain.php.

◆ API_DEFAULT_FORMAT

const ApiMain::API_DEFAULT_FORMAT = 'jsonfm'

When no format parameter is given, this format will be used.

Definition at line 45 of file ApiMain.php.

◆ API_DEFAULT_USELANG

const ApiMain::API_DEFAULT_USELANG = 'user'

When no uselang parameter is given, this language will be used.

Definition at line 50 of file ApiMain.php.

The documentation for this class was generated from the following file:

includes/api/ApiMain.php

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Static Protected Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ addRequestedFields()

◆ canApiHighLimits()

◆ checkAsserts()

◆ checkBotReadOnly()

◆ checkConditionalRequestHeaders()

◆ checkExecutePermissions()

◆ checkMaxLag()

◆ checkReadOnly()

◆ createErrorPrinter()

◆ createPrinterByName()

◆ encodeRequestLogValue()

◆ errorMessagesFromException()

◆ execute()

◆ executeAction()

◆ executeActionWithErrorHandling()

◆ getAllowedParams()

◆ getCheck()

◆ getContinuationManager()

◆ getErrorFormatter()

◆ getExamplesMessages()

◆ getMaxLag()

◆ getModule()

◆ getModuleManager()

◆ getParamsUsed()

◆ getPrinter()

◆ getResult()

◆ getSensitiveParams()

◆ getUpload()

◆ getUserAgent()

◆ getVal()

◆ handleApiBeforeMainException()

◆ handleCORS()

◆ handleException()

◆ isInternalMode()

◆ isReadMode()

◆ lacksSameOriginSecurity()

◆ logRequest()

◆ markParamsSensitive()

◆ markParamsUsed()

◆ matchOrigin()

◆ matchRequestedHeaders()

◆ modifyHelp()

◆ printResult()

◆ reportUnusedParams()

◆ sendCacheHeaders()

◆ setCacheControl()

◆ setCacheMaxAge()

◆ setCacheMode()

◆ setContinuationManager()

◆ setRequestExpectations()

◆ setupExecuteAction()

◆ setupExternalResponse()

◆ setupModule()

◆ substituteResultWithError()

◆ wildcardToRegex()

Member Data Documentation

◆ $Formats

◆ $lacksSameOriginSecurity

◆ $mAction

◆ $mCacheControl

◆ $mCacheMode

◆ $mCanApiHighLimits

◆ $mContinuationManager

◆ $mEnableWrite

◆ $mErrorFormatter

◆ $mInternalMode

◆ $mModule

◆ $mModuleMgr