UploadFromChunks Class Reference

Implements uploading from chunks. More...

Inheritance diagram for UploadFromChunks:

Collaboration diagram for UploadFromChunks:

Public Member Functions
	__construct (User $user, $stash=false, $repo=false)
	@noinspection PhpMissingParentConstructorInspection
	addChunk ( $chunkPath, $chunkSize, $offset)
	Add a chunk to the temporary directory.
	concatenateChunks ()
	Append the final chunk and ready file for parent::performUpload()
	continueChunks ( $name, $key, $webRequestUpload)
	Continue chunk uploading.
	getOffset ()
	Get the offset at which the next uploaded chunk will be appended to.
	tryStashFile (User $user, $isPartial=false)
	Like stashFile(), but respects extensions' wishes to prevent the stashing.verifyUpload() must be called before calling this method (unless $isPartial is true).Upload stash exceptions are also caught and converted to an error status. Since 1.28 Stability: stable to override Parameters User $user bool $isPartial Pass true if this is a part of a chunked upload (not a complete file). Returns Status If successful, value is an UploadStashFile instance
Public Member Functions inherited from UploadFromFile
	getSourceType ()
	initialize ( $name, $webRequestUpload)
	Initialize from a filename and a WebRequestUpload.
	initializeFromRequest (&$request)
	verifyUpload ()
Public Member Functions inherited from UploadBase
	__construct ()
	checkSvgScriptCallback ( $element, $attribs, $data=null)
	checkWarnings ( $user=null)
	Check for non fatal problems with the file.
	cleanupTempFile ()
	If we've modified the upload file we need to manually remove it on exit to clean up.
	convertVerifyErrorToStatus ( $error)
	fetchFile ()
	Fetch the file.
	getFileSize ()
	Return the file size.
	getImageInfo ( $result)
	Gets image info about the file just uploaded.
	getLocalFile ()
	Return the local file and initializes if necessary.
	getRealPath ( $srcPath)
	getStashFile ()
	getTempFileSha1Base36 ()
	Get the base 36 SHA1 of the file.
	getTempPath ()
	getTitle ()
	Returns the title of the file to be uploaded.
	getVerificationErrorCode ( $error)
	initializePathInfo ( $name, $tempPath, $fileSize, $removeTempFile=false)
	isEmptyFile ()
	Return true if the file is empty.
	performUpload ( $comment, $pageText, $watch, $user, $tags=[], ?string $watchlistExpiry=null)
	Really perform the upload.
	postProcessUpload ()
	Perform extra steps after a successful upload.
	validateName ()
	Verify that the name is valid and, if necessary, that we can overwrite.
	verifyPermissions (Authority $performer)
	Alias for verifyTitlePermissions.
	verifyTitlePermissions (Authority $performer)
	Check whether the user can edit, upload and create the image.
	zipEntryCallback ( $entry)
	Callback for ZipDirectoryReader to detect Java class files.

Public Attributes
UploadStash	$stash
User	$user
Public Attributes inherited from UploadBase
const	EMPTY_FILE = 3
const	FILE_TOO_LARGE = 12
const	FILENAME_TOO_LONG = 14
const	FILETYPE_BADTYPE = 9
const	FILETYPE_MISSING = 8
const	HOOK_ABORTED = 11
const	ILLEGAL_FILENAME = 5
const	MIN_LENGTH_PARTNAME = 4
const	OK = 0
const	OVERWRITE_EXISTING_FILE = 7
const	SUCCESS = 0
const	VERIFICATION_ERROR = 10
const	WINDOWS_NONASCII_FILENAME = 13

Protected Member Functions
	doStashFile (User $user=null)
	Calls the parent doStashFile and updates the uploadsession table to handle "chunks".
Protected Member Functions inherited from UploadBase
	detectScriptInSvg ( $filename, $partial)
	runUploadStashFileHook (User $user)
	setTempFile ( $tempPath, $fileSize=null)
	verifyFile ()
	Verifies that it's ok to include the uploaded file.
	verifyMimeType ( $mime)
	Verify the MIME type.
	verifyPartialFile ()
	A verification routine suitable for partial files.

Protected Attributes
	$mChunkIndex
	$mFileKey
	$mOffset
	$mVirtualTempPath
Protected Attributes inherited from UploadFromFile
WebRequestUpload	$mUpload = null
Protected Attributes inherited from UploadBase
string[]	$mBlackListedExtensions
string null	$mDesiredDestName
string null	$mDestName
array null	$mFileProps
int null	$mFileSize
string null	$mFilteredName
string null	$mFinalExtension
bool null	$mJavaDetected
LocalFile null	$mLocalFile
bool null	$mRemoveTempFile
string null	$mSourceType
UploadStashFile null	$mStashFile
string null	$mSVGNSError
string null	$mTempPath
	Local file system path to the file to upload (or a local copy)
Title bool	$mTitle = false
int	$mTitleError = 0
TempFSFile null	$tempFileObj
	Wrapper to handle deleting the temp file.

Private Member Functions
	getChunkFileKey ( $index=null)
	getChunkIndex ()
	Get the current Chunk index.
	getChunkStatus ()
	Get the chunk db state and populate update relevant local values.
	getVirtualChunkLocation ( $index)
	Returns the virtual chunk location:
	outputChunk ( $chunkPath)
	Output the chunk to disk.
	updateChunkStatus ()
	Update the chunk db table with the current status:
	verifyChunk ()
	Verify that the chunk isn't really an evil html file.

Private Attributes
LocalRepo	$repo

Additional Inherited Members
Static Public Member Functions inherited from UploadFromFile
static	isValidRequest ( $request)
Static Public Member Functions inherited from UploadBase
static	checkFileExtension ( $ext, $list)
	Perform case-insensitive match against a list of file extensions.
static	checkFileExtensionList ( $ext, $list)
	Perform case-insensitive match against a list of file extensions.
static	checkSvgExternalDTD ( $type, $publicId, $systemId)
	Verify that DTD urls referenced are only the standard dtds.
static	checkSvgPICallback ( $target, $data)
	Callback to filter SVG Processing Instructions.
static	checkXMLEncodingMissmatch ( $file)
	Check a whitelist of xml encodings that are known not to be interpreted differently by the server's xml parser (expat) and some common browsers.
static	createFromRequest (&$request, $type=null)
	Create a form of UploadBase depending on wpSourceType and initializes it.
static	detectScript ( $file, $mime, $extension)
	Heuristic for detecting files that could contain JavaScript instructions or things that may look like HTML to a browser and are thus potentially harmful.
static	detectVirus ( $file)
	Generic wrapper function for a virus scanner program.
static	getExistsWarning ( $file)
	Helper function that does various existence checks for a file.
static	getFilenamePrefixBlacklist ()
	Get a list of blacklisted filename prefixes from [[MediaWiki:Filename-prefix-blacklist]].
static	getMaxPhpUploadSize ()
	Get the PHP maximum uploaded file size, based on ini settings.
static	getMaxUploadSize ( $forType=null)
	Get MediaWiki's maximum uploaded file size for given type of upload, based on $wgMaxUploadSize.
static	getSessionStatus (UserIdentity $user, $statusKey)
	Get the current status of a chunked upload (used for polling)
static	isAllowed (Authority $performer)
	Returns true if the user can use this upload module or else a string identifying the missing permission.
static	isEnabled ()
	Returns true if uploads are enabled.
static	isThrottled ( $user)
	Returns true if the user has surpassed the upload rate limit, false otherwise.
static	isThumbName ( $filename)
	Helper function that checks whether the filename looks like a thumbnail.
static	makeWarningsSerializable ( $warnings)
	Convert the warnings array returned by checkWarnings() to something that can be serialized.
static	setSessionStatus (UserIdentity $user, $statusKey, $value)
	Set the current status of a chunked upload (used for polling)
static	splitExtensions ( $filename)
	Split a file into a base name and all dot-delimited 'extensions' on the end.
static	userCanReUpload (Authority $performer, File $img)
	Check if a user is the last uploader.
static	verifyExtension ( $mime, $extension)
	Checks if the MIME type of the uploaded file matches the file extension.
Static Protected Attributes inherited from UploadBase
static	$safeXmlEncodings

Detailed Description

Implements uploading from chunks.

Author

Michael Dale

Definition at line 33 of file UploadFromChunks.php.

Constructor & Destructor Documentation

__construct()

UploadFromChunks::__construct	(	User	$user,
			$stash = false,
			$repo = false
	)

@noinspection PhpMissingParentConstructorInspection

Setup local pointers to stash, repo and user (similar to UploadFromStash)

Parameters

User	$user
UploadStash | bool	$stash	Default: false
FileRepo | bool	$repo	Default: false

Definition at line 55 of file UploadFromChunks.php.

References $repo, $stash, $user, User\getId(), and wfDebug().

Member Function Documentation

addChunk()

UploadFromChunks::addChunk	(		$chunkPath,
			$chunkSize,
			$offset
	)

Add a chunk to the temporary directory.

Parameters

string	$chunkPath	Path to temporary chunk file
int	$chunkSize	Size of the current chunk
int	$offset	Offset of current chunk ( mutch match database chunk offset )

Returns

Status

Definition at line 227 of file UploadFromChunks.php.

References UploadBase\$mTempPath, UploadBase\getMaxUploadSize(), getOffset(), MWException\msg(), outputChunk(), updateChunkStatus(), and verifyChunk().

concatenateChunks()

UploadFromChunks::concatenateChunks

(

)

Append the final chunk and ready file for parent::performUpload()

Returns

Status

Definition at line 137 of file UploadFromChunks.php.

References $ext, FileRepo\DELETE_SOURCE, FileBackend\extensionFromPath(), getChunkIndex(), getOffset(), UploadBase\getVerificationErrorCode(), getVirtualChunkLocation(), UploadBase\OK, UploadBase\runUploadStashFileHook(), UploadBase\setTempFile(), UploadFromFile\verifyUpload(), wfDebug(), and wfDebugLog().

continueChunks()

UploadFromChunks::continueChunks	(		$name,
			$key,
			$webRequestUpload
	)

Continue chunk uploading.

Parameters

string	$name
string	$key
WebRequestUpload	$webRequestUpload

Definition at line 118 of file UploadFromChunks.php.

References getChunkStatus(), UploadBase\getRealPath(), and UploadBase\initializePathInfo().

doStashFile()

UploadFromChunks::doStashFile ( User  $user = null )

protected

Calls the parent doStashFile and updates the uploadsession table to handle "chunks".

Parameters

User | null

$user

Returns

UploadStashFile Stashed file

Reimplemented from UploadBase.

Definition at line 91 of file UploadFromChunks.php.

References UploadBase\$mStashFile, $user, outputChunk(), and updateChunkStatus().

getChunkFileKey()

UploadFromChunks::getChunkFileKey (   $index = null )

private

Definition at line 365 of file UploadFromChunks.php.

References getChunkIndex().

Referenced by getVirtualChunkLocation(), and outputChunk().

getChunkIndex()

UploadFromChunks::getChunkIndex ( )

private

Get the current Chunk index.

Returns

int Index of the current chunk

Definition at line 311 of file UploadFromChunks.php.

References $mChunkIndex.

Referenced by concatenateChunks(), getChunkFileKey(), and updateChunkStatus().

getChunkStatus()

UploadFromChunks::getChunkStatus ( )

private

Get the chunk db state and populate update relevant local values.

Definition at line 285 of file UploadFromChunks.php.

Referenced by continueChunks().

getOffset()

UploadFromChunks::getOffset

(

)

Get the offset at which the next uploaded chunk will be appended to.

Returns

int Current byte offset of the chunk file set

Definition at line 323 of file UploadFromChunks.php.

References $mOffset.

Referenced by addChunk(), concatenateChunks(), and updateChunkStatus().

getVirtualChunkLocation()

UploadFromChunks::getVirtualChunkLocation (   $index )

private

Returns the virtual chunk location:

Parameters

int

$index

Returns

string

Definition at line 210 of file UploadFromChunks.php.

References getChunkFileKey().

Referenced by concatenateChunks().

outputChunk()

UploadFromChunks::outputChunk (   $chunkPath )

private

Output the chunk to disk.

Parameters

string

$chunkPath

Exceptions

UploadChunkFileException

Returns

Status

Definition at line 338 of file UploadFromChunks.php.

References getChunkFileKey().

Referenced by addChunk(), and doStashFile().

tryStashFile()

UploadFromChunks::tryStashFile	(	User	$user,
			$isPartial = false
	)

Like stashFile(), but respects extensions' wishes to prevent the stashing.verifyUpload() must be called before calling this method (unless $isPartial is true).Upload stash exceptions are also caught and converted to an error status.

Since

1.28

Stability: stable

to override

Parameters

User	$user
bool	$isPartial	Pass true if this is a part of a chunked upload (not a complete file).

Returns

Status If successful, value is an UploadStashFile instance

Reimplemented from UploadBase.

Definition at line 75 of file UploadFromChunks.php.

References $user, MWException\msg(), and verifyChunk().

updateChunkStatus()

UploadFromChunks::updateChunkStatus ( )

private

Update the chunk db table with the current status:

Definition at line 265 of file UploadFromChunks.php.

References getChunkIndex(), getOffset(), and wfDebug().

Referenced by addChunk(), and doStashFile().

verifyChunk()

UploadFromChunks::verifyChunk ( )

private

Verify that the chunk isn't really an evil html file.

Exceptions

UploadChunkVerificationException

Definition at line 378 of file UploadFromChunks.php.

References UploadBase\$mDesiredDestName, $mFileKey, $res, and UploadBase\verifyPartialFile().

Referenced by addChunk(), and tryStashFile().

Member Data Documentation

$mChunkIndex

UploadFromChunks::$mChunkIndex

protected

Definition at line 42 of file UploadFromChunks.php.

Referenced by getChunkIndex().

$mFileKey

UploadFromChunks::$mFileKey

protected

Definition at line 43 of file UploadFromChunks.php.

Referenced by verifyChunk().

$mOffset

UploadFromChunks::$mOffset

protected

Definition at line 41 of file UploadFromChunks.php.

Referenced by getOffset().

$mVirtualTempPath

UploadFromChunks::$mVirtualTempPath

protected

Definition at line 44 of file UploadFromChunks.php.

$repo

LocalRepo UploadFromChunks::$repo

private

Definition at line 35 of file UploadFromChunks.php.

Referenced by __construct().

$stash

UploadStash UploadFromChunks::$stash

Definition at line 37 of file UploadFromChunks.php.

Referenced by __construct().

$user

User UploadFromChunks::$user

Definition at line 39 of file UploadFromChunks.php.

Referenced by __construct(), doStashFile(), and tryStashFile().

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

• includes/upload/UploadFromChunks.php