A foreign repository for a remote MediaWiki accessible through api.php requests. More...

Inheritance diagram for ForeignAPIRepo:

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Collaboration diagram for ForeignAPIRepo:

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Public Member Functions
	__construct ( $info)

	canCacheThumbs ()
	Are we locally caching the thumbnails?

	enumFiles ( $callback)

	fetchImageQuery ( $query)
	Make an API query in the foreign repo, caching results.

	fileExistsBatch (array $files)

	findBySha1 ( $hash)

	getFileProps ( $virtualUrl)

	getImageInfo ( $data)

	getInfo ()
	Get information about the repo - overrides/extends the parent class's information.

	getThumbError ( $name, $width=-1, $height=-1, $otherParams='', $lang=null)

	getThumbUrlFromCache ( $name, $width, $height, $params="")
	Return the imageurl from cache if possible.

	getZonePath ( $zone)
	Get the local directory corresponding to one of the basic zones.

	getZoneUrl ( $zone, $ext=null)

	httpGetCached ( $attribute, $query, $cacheTTL=3600)
	HTTP GET request to a mediawiki API (with caching)

	newFile ( $title, $time=false)
	Per docs in FileRepo, this needs to return false if we don't support versioned files.

Public Member Functions inherited from FileRepo
	__construct (array $info=null)

	backendSupportsUnicodePaths ()

	canTransformLocally ()
	Returns true if the repository can transform files locally.

	canTransformVia404 ()
	Returns true if the repository can transform files via a 404 handler.

	checkRedirect ( $title)
	Checks if there is a redirect named as $title.

	cleanDir ( $dir)
	Deletes a directory if empty.

	cleanupBatch (array $files, $flags=0)
	Deletes a batch of files.

	cleanupDeletedBatch (array $storageKeys)
	Delete files in the deleted directory if they are not referenced in the filearchive table.

	concatenate (array $srcPaths, $dstPath, $flags=0)
	Concatenate a list of temporary files into a target file location.

	delete ( $srcRel, $archiveRel)
	Move a file to the deletion archive.

	deleteBatch (array $sourceDestPairs)
	Move a group of files to the deletion archive.

	fileExists ( $file)
	Checks existence of a file.

	findBySha1s (array $hashes)
	Get an array of arrays or iterators of file objects for files that have the given SHA-1 content hashes.

	findFile ( $title, $options=[])
	Find an instance of the named file created at the specified time Returns false if the file does not exist.

	findFileFromKey ( $sha1, $options=[])
	Find an instance of the file with this key, created at the specified time Returns false if the file does not exist.

	findFiles (array $items, $flags=0)
	Find many files at once.

	findFilesByPrefix ( $prefix, $limit)
	Return an array of files where the name starts with $prefix.

	freeTemp ( $virtualUrl)
	Remove a temporary file or mark it for garbage collection.

	getBackend ()
	Get the file backend instance.

	getDeletedHashPath ( $key)
	Get a relative path for a deletion archive key, e.g.

	getDescriptionRenderUrl ( $name, $lang=null)
	Get the URL of the content-only fragment of the description page.

	getDescriptionStylesheetUrl ()
	Get the URL of the stylesheet to apply to description pages.

	getDescriptionUrl ( $name)
	Get the URL of an image description page.

	getDisplayName ()
	Get the human-readable name of the repo.

	getFileSha1 ( $virtualUrl)
	Get the sha1 (base 36) of a file with a given virtual URL/storage path.

	getFileSize ( $virtualUrl)
	Get the size of a file with a given virtual URL/storage path.

	getFileTimestamp ( $virtualUrl)
	Get the timestamp of a file with a given virtual URL/storage path.

	getHashLevels ()
	Get the number of hash directory levels.

	getHashPath ( $name)
	Get a relative path including trailing slash, e.g.

	getLocalCacheKey ( $kClassSuffix,... $components)
	Get a site-local, repository-qualified, WAN cache key.

	getLocalCopy ( $virtualUrl)
	Get a local FS copy of a file with a given virtual URL/storage path.

	getLocalReference ( $virtualUrl)
	Get a local FS file with a given virtual URL/storage path.

	getName ()
	Get the name of this repository, as specified by $info['name]' to the constructor.

	getNameFromTitle ( $title)
	Get the name of a file from its title.

	getReadOnlyReason ()
	Get an explanatory message if this repo is read-only.

	getRootDirectory ()
	Get the public zone root storage directory of the repository.

	getSharedCacheKey ( $kClassSuffix,... $components)
	Get a global, repository-qualified, WAN cache key.

	getTempHashPath ( $suffix)
	Get a relative path including trailing slash, e.g.

	getTempRepo ()
	Get a temporary private FileRepo associated with this repo.

	getThumbProxySecret ()
	Get the secret key for the proxied thumb service.

	getThumbProxyUrl ()
	Get the URL thumb.php requests are being proxied to.

	getThumbScriptUrl ()
	Get the URL of thumb.php.

	getUploadStash (UserIdentity $user=null)
	Get an UploadStash associated with this repo.

	getVirtualUrl ( $suffix=false)
	Get a URL referring to this repository, with the private mwrepo protocol.

	hasSha1Storage ()
	Returns whether or not storage is SHA-1 based.

	invalidateImageRedirect ( $title)
	Invalidates image redirect cache related to that image Doesn't do anything for repositories that don't support image redirects.

	isLocal ()
	Returns true if this the local file repository.

	makeUrl ( $query='', $entry='index')
	Make an url to this repo.

	nameForThumb ( $name)
	Get the portion of the file that contains the origin file name.

	newFatal ( $message,... $parameters)
	Create a new fatal error.

	newGood ( $value=null)
	Create a new good result.

	paranoidClean ( $param)
	Path disclosure protection function.

	passThrough ( $param)
	Path disclosure protection function.

	publish ( $src, $dstRel, $archiveRel, $flags=0, array $options=[])
	Copy or move a file either from a storage path, virtual URL, or file system path, into this repository at the specified destination location.

	publishBatch (array $ntuples, $flags=0)
	Publish a batch of files.

	quickCleanDir ( $dir)
	Deletes a directory if empty.

	quickImport ( $src, $dst, $options=null)
	Import a file from the local file system into the repo.

	quickImportBatch (array $triples)
	Import a batch of files from the local file system into the repo.

	quickPurge ( $path)
	Purge a file from the repo.

	quickPurgeBatch (array $paths)
	Purge a batch of files from the repo.

	resolveVirtualUrl ( $url)
	Get the backend storage path corresponding to a virtual URL.

	store ( $srcPath, $dstZone, $dstRel, $flags=0)
	Store a file to a given destination.

	storeBatch (array $triplets, $flags=0)
	Store a batch of files.

	storeTemp ( $originalName, $srcPath)
	Pick a random name in the temp zone and store a file to it.

	streamFileWithStatus ( $virtualUrl, $headers=[], $optHeaders=[])
	Attempt to stream a file with the given virtual URL/storage path.

	supportsSha1URLs ()
	Returns whether or not repo supports having originals SHA-1s in the thumb URLs.

	validateFilename ( $filename)
	Determine if a relative path is valid, i.e.

Static Public Member Functions
static	getUserAgent ()
	The user agent the ForeignAPIRepo will use.

static	httpGet ( $url, $timeout='default', $options=[], &$mtime=false)

Static Public Member Functions inherited from FileRepo
static	isVirtualUrl ( $url)
	Determine if a string is an mwrepo:// URL.

Protected Member Functions
	assertWritableRepo ()

Protected Member Functions inherited from FileRepo
	enumFilesInStorage ( $callback)
	Call a callback function for every public file in the repository.

	getZoneLocation ( $zone)
	The storage container and base path of a zone.

	initDirectory ( $dir)
	Creates a directory with the appropriate zone permissions.

	initZones ( $doZones=[])
	Ensure that a single zone or list of zones is defined for usage.

	resolveToStoragePathIfVirtual ( $path)
	If a path is a virtual URL, resolve it to a storage path.

Static Protected Member Functions
static	getIIProps ()

Static Protected Member Functions inherited from FileRepo
static	getHashPathForLevel ( $name, $levels)

Protected Attributes
int	$apiMetadataExpiry = 14400
	API metadata cache time.

int	$apiThumbCacheExpiry = 86400
	Check back with Commons after this expiry.

int	$fileCacheExpiry = 2592000
	Redownload thumbnail files after this expiry.

	$fileFactory = [ ForeignAPIFile::class, 'newFromTitle' ]

array	$mFileExists = []

Protected Attributes inherited from FileRepo
int	$abbrvThreshold
	File names over this size will use the short form of thumbnail names.

string	$articleUrl
	Equivalent to $wgArticlePath, e.g.

FileBackend	$backend

int	$deletedHashLevels
	The number of directory levels for hash-based division of deleted files.

string	$descBaseUrl
	URL of image description pages, e.g.

bool	$disableLocalTransform = false
	Disable local image scaling.

null string	$favicon = null
	The URL to a favicon (optional, may be a server-local path URL).

callable	$fileFactory = [ UnregisteredLocalFile::class, 'newFromTitle' ]
	Override these in the base class.

callable false	$fileFactoryKey = false
	Override these in the base class.

int	$hashLevels
	The number of directory levels for hash-based division of files.

bool	$hasSha1Storage = false

bool	$initialCapital
	Equivalent to $wgCapitalLinks (or $wgCapitalLinkOverrides[NS_FILE], determines whether filenames implicitly start with a capital letter.

bool	$isPrivate
	Whether all zones should be private (e.g.

callable false	$oldFileFactory = false
	Override these in the base class.

callable false	$oldFileFactoryKey = false
	Override these in the base class.

string	$pathDisclosureProtection = 'simple'
	May be 'paranoid' to remove all parameters from error messages, 'none' to leave the paths in unchanged, or 'simple' to replace paths with placeholders.

string	$scriptDirUrl
	URL of the MediaWiki installation, equivalent to $wgScriptPath, e.g.

bool	$supportsSha1URLs = false

string	$thumbProxySecret
	Secret key to pass as an X-Swift-Secret header to the proxied thumb service.

string	$thumbProxyUrl
	URL of where to proxy thumb.php requests to.

string	$thumbScriptUrl
	URL of thumb.php.

string false	$thumbUrl
	The base thumbnail URL.

bool	$transformVia404
	Whether to skip media file transformation on parse and rely on a 404 handler instead.

string false	$url
	Public zone URL.

WANObjectCache	$wanCache

array	$zones = []
	Map of zones to config.

Additional Inherited Members
Public Attributes inherited from FileRepo
int	$descriptionCacheExpiry

bool	$fetchDescription
	Whether to fetch commons image description pages and display them on the local wiki.

string	$name

const	DELETE_SOURCE = 1

const	NAME_AND_TIME_ONLY = 1

const	OVERWRITE = 2

const	OVERWRITE_SAME = 4

const	SKIP_LOCKING = 8

Detailed Description

A foreign repository for a remote MediaWiki accessible through api.php requests.

Example config:: $wgForeignFileRepos[] = [

'class' => ForeignAPIRepo::class,

'name' => 'shared',

'apibase' => 'https://en.wikipedia.org/w/api.php',

'fetchDescription' => true, // Optional

'descriptionCacheExpiry' => 3600,

];

$wgForeignFileRepos
$wgForeignFileRepos
Config variable stub for the ForeignFileRepos setting, for use by phpdoc and IDEs.
Definition config-vars.php:287

Definition at line 43 of file ForeignAPIRepo.php.

Constructor & Destructor Documentation

◆ __construct()

ForeignAPIRepo::__construct ( $info )

Parameters

array | null $info

Definition at line 86 of file ForeignAPIRepo.php.

References canCacheThumbs().

Member Function Documentation

◆ assertWritableRepo()

ForeignAPIRepo::assertWritableRepo ( )

protected

Exceptions

MWException

Reimplemented from FileRepo.

Definition at line 629 of file ForeignAPIRepo.php.

◆ canCacheThumbs()

ForeignAPIRepo::canCacheThumbs ( )

Are we locally caching the thumbnails?

Returns: bool

Definition at line 484 of file ForeignAPIRepo.php.

Referenced by __construct(), and getThumbUrlFromCache().

◆ enumFiles()

ForeignAPIRepo::enumFiles ( $callback )

Parameters

callable $callback

Exceptions

MWException

Reimplemented from FileRepo.

Definition at line 621 of file ForeignAPIRepo.php.

◆ fetchImageQuery()

ForeignAPIRepo::fetchImageQuery ( $query )

Make an API query in the foreign repo, caching results.

Parameters

array $query

Returns: array|null

Implements IForeignRepoWithMWApi.

Definition at line 208 of file ForeignAPIRepo.php.

References httpGetCached().

Referenced by fileExistsBatch(), findBySha1(), and getThumbError().

◆ fileExistsBatch()

ForeignAPIRepo::fileExistsBatch ( array $files )

Parameters

string[] $files

Returns: array

Reimplemented from FileRepo.

Definition at line 143 of file ForeignAPIRepo.php.

References $file, fetchImageQuery(), FileBackend\isStoragePath(), and wfWarn().

◆ findBySha1()

ForeignAPIRepo::findBySha1 ( $hash )

Parameters

string $hash

Returns: ForeignAPIFile[]

Reimplemented from FileRepo.

Definition at line 256 of file ForeignAPIRepo.php.

References fetchImageQuery(), ForeignAPIFile\getProps(), and NS_FILE.

◆ getFileProps()

ForeignAPIRepo::getFileProps ( $virtualUrl )

Parameters

string $virtualUrl

Returns: array

Reimplemented from FileRepo.

Definition at line 198 of file ForeignAPIRepo.php.

◆ getIIProps()

static ForeignAPIRepo::getIIProps ( )

staticprotected

Returns: string

Since: 1.23

Definition at line 576 of file ForeignAPIRepo.php.

◆ getImageInfo()

ForeignAPIRepo::getImageInfo ( $data )

Parameters

array $data

Returns: bool|array

Definition at line 236 of file ForeignAPIRepo.php.

Referenced by getThumbError().

◆ getInfo()

ForeignAPIRepo::getInfo ( )

Get information about the repo - overrides/extends the parent class's information.

Returns: array

Since: 1.22

Reimplemented from FileRepo.

Definition at line 503 of file ForeignAPIRepo.php.

References httpGetCached().

◆ getThumbError()

ForeignAPIRepo::getThumbError	(	$name,
		$width = -1,
		$height = -1,
		$otherParams = '',
		$lang = null )

Parameters

string	$name
int	$width
int	$height
string	$otherParams
string \| null	$lang	Language code for language of error

Returns: bool|MediaTransformError

Since: 1.22

Definition at line 316 of file ForeignAPIRepo.php.

References $lang, FileRepo\$name, fetchImageQuery(), FileRepo\getDisplayName(), getImageInfo(), and wfDebug().

◆ getThumbUrlFromCache()

ForeignAPIRepo::getThumbUrlFromCache	(	$name,
		$width,
		$height,
		$params = "" )

Return the imageurl from cache if possible.

If the url has been requested today, get it from cache Otherwise retrieve remote thumb url, check for local file.

Parameters

string	$name	Is a dbkey form of a title
int	$width
int	$height
string	$params	Other rendering parameters (page number, etc) from handler's makeParamString.

Returns: bool|string

Definition at line 358 of file ForeignAPIRepo.php.

References $apiThumbCacheExpiry, FileRepo\$backend, FileRepo\$name, canCacheThumbs(), FileBackend\fileExists(), FileRepo\getBackend(), FileBackend\getFileTimestamp(), FileRepo\getHashPath(), FileRepo\getLocalCacheKey(), getZonePath(), getZoneUrl(), httpGet(), FileBackend\prepare(), FileBackend\quickCreate(), FileRepo\validateFilename(), wfDebug(), and wfTimestamp().

◆ getUserAgent()

static ForeignAPIRepo::getUserAgent ( )

static

The user agent the ForeignAPIRepo will use.

Returns: string

Definition at line 492 of file ForeignAPIRepo.php.

Referenced by httpGet().

◆ getZonePath()

ForeignAPIRepo::getZonePath ( $zone )

Get the local directory corresponding to one of the basic zones.

Parameters

string $zone

Returns: bool|null|string

Reimplemented from FileRepo.

Definition at line 471 of file ForeignAPIRepo.php.

Referenced by getThumbUrlFromCache().

◆ getZoneUrl()

ForeignAPIRepo::getZoneUrl	(		$zone,
			$ext = null )

See also: FileRepo::getZoneUrl()

Parameters

string	$zone
string \| null	$ext	Optional file extension

Returns: string

Reimplemented from FileRepo.

Definition at line 455 of file ForeignAPIRepo.php.

References $ext, FileRepo\$thumbUrl, and FileRepo\$url.

Referenced by getThumbUrlFromCache().

◆ httpGet()

static ForeignAPIRepo::httpGet	(		$url,
			$timeout = 'default',
			$options = [],
		&	$mtime = false )

static

Parameters

string	$url
string	$timeout
array	$options
int \| false	&$mtime	Resulting Last-Modified UNIX timestamp if received

Returns: string|false

Definition at line 537 of file ForeignAPIRepo.php.

References FileRepo\$url, getUserAgent(), PROTO_HTTP, wfDebug(), wfExpandUrl(), and wfTimestamp().

Referenced by getThumbUrlFromCache(), and httpGetCached().

◆ httpGetCached()

ForeignAPIRepo::httpGetCached	(	$attribute,
		$query,
		$cacheTTL = 3600 )

HTTP GET request to a mediawiki API (with caching)

Parameters

string	$attribute	Used in cache key creation, mostly
array	$query	The query parameters for the API request
int	$cacheTTL	Time to live for the memcached caching

Returns: string|null

Definition at line 587 of file ForeignAPIRepo.php.

References FileRepo\$url, httpGet(), FileRepo\makeUrl(), and wfAppendQuery().

Referenced by fetchImageQuery(), and getInfo().

◆ newFile()

ForeignAPIRepo::newFile	(		$title,
			$time = false )

Per docs in FileRepo, this needs to return false if we don't support versioned files.

Well, we don't.

Parameters

PageIdentity \| LinkTarget \| string	$title
string \| bool	$time

Returns: File|false

Reimplemented from FileRepo.

Definition at line 131 of file ForeignAPIRepo.php.

References $title.

Member Data Documentation

◆ $apiMetadataExpiry

int ForeignAPIRepo::$apiMetadataExpiry = 14400

protected

API metadata cache time.

Since: 1.38

This is often the performance bottleneck for ForeignAPIRepo. For each file used, we must fetch file metadata for it and every high-dpi variant, in serial, during the parse. This is slow if a page has many files, with RTT of the handshake often being significant. The metadata rarely changes, but if a new version of the file was uploaded, it might be displayed incorrectly until its metadata entry falls out of cache.

Definition at line 75 of file ForeignAPIRepo.php.

◆ $apiThumbCacheExpiry

int ForeignAPIRepo::$apiThumbCacheExpiry = 86400

protected

Check back with Commons after this expiry.

Definition at line 59 of file ForeignAPIRepo.php.

Referenced by getThumbUrlFromCache().

◆ $fileCacheExpiry

int ForeignAPIRepo::$fileCacheExpiry = 2592000

protected

Redownload thumbnail files after this expiry.

Definition at line 62 of file ForeignAPIRepo.php.

◆ $fileFactory

ForeignAPIRepo::$fileFactory = [ ForeignAPIFile::class, 'newFromTitle' ]

protected

Definition at line 57 of file ForeignAPIRepo.php.

◆ $mFileExists

array ForeignAPIRepo::$mFileExists = []

protected

Definition at line 78 of file ForeignAPIRepo.php.

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

includes/filerepo/ForeignAPIRepo.php

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ assertWritableRepo()

◆ canCacheThumbs()

◆ enumFiles()

◆ fetchImageQuery()

◆ fileExistsBatch()

◆ findBySha1()

◆ getFileProps()

◆ getIIProps()

◆ getImageInfo()

◆ getInfo()

◆ getThumbError()

◆ getThumbUrlFromCache()

◆ getUserAgent()

◆ getZonePath()

◆ getZoneUrl()

◆ httpGet()

◆ httpGetCached()

◆ newFile()

Member Data Documentation

◆ $apiMetadataExpiry

◆ $apiThumbCacheExpiry

◆ $fileCacheExpiry

◆ $fileFactory

◆ $mFileExists