Index

  1. \SetaPDF
    1. Core
    2. Core
      1. Parser
        1. CrossReferenceTable
        2. CrossReferenceTable
        3. Pdf
        4. Pdf
        5. Content
        6. CorruptedCrossReferenceTable
        7. Exception
        8. RawPdf

SetaPDF_Core_Parser_CorruptedCrossReferenceTable A PDF cross reference parser for corrupted pdfs

File: /SetaPDF v2/Core/Parser/CorruptedCrossReferenceTable.php

Class hierarchy

Implements

Summary

Methods

Properties

Properties

$_lastObjectOffset

protected int SetaPDF_Core_Parser_CorruptedCrossReferenceTable::$_lastObjectOffset

The offset of the last found object

$_matchedPositions

protected null SetaPDF_Core_Parser_CorruptedCrossReferenceTable::$_matchedPositions = array(...)

$_maxObjId

protected integer SetaPDF_Core_Document_CrossReferenceTable::$_maxObjId = 0

The greatest used object id

$_objectOffsets

protected array SetaPDF_Core_Document_CrossReferenceTable::$_objectOffsets = array(...)

The cross-reference content

$_parser

protected SetaPDF_Core_Parser_Pdf SetaPDF_Core_Parser_CorruptedCrossReferenceTable::$_parser

The PDF parser instance

$_parserObjectOffsets

protected array SetaPDF_Core_Parser_CorruptedCrossReferenceTable::$_parserObjectOffsets = array()

Object offsets in the parser File

$_pointerToXref

protected integer SetaPDF_Core_Document_CrossReferenceTable::$_pointerToXref

The pointer to the last written xref table

$_trailer

protected SetaPDF_Core_Type_Dictionary SetaPDF_Core_Parser_CorruptedCrossReferenceTable::$_trailer

The trailer dictionary

$_updatedOffsets

protected array SetaPDF_Core_Document_CrossReferenceTable::$_updatedOffsets = array()

Updated offsets


Methods

__construct()

public SetaPDF_Core_Parser_CorruptedCrossReferenceTable::__construct ()

The constructor.

Parameters
$parser : SetaPDF_Core_Parser_Pdf
 
Exceptions

Throws SetaPDF_Core_Exception

Throws SetaPDF_Core_Parser_CrossReferenceTable_Exception

Throws SetaPDF_Core_Parser_Pdf_InvalidTokenException

_extractObjectIds()

protected SetaPDF_Core_Parser_CorruptedCrossReferenceTable::_extractObjectIds (
string $buffer, int $start
): int

Extracts object ids and their offsets from a buffer.

Parameters
$buffer : string
 
$start : int
 

_extractTrailers()

protected SetaPDF_Core_Parser_CorruptedCrossReferenceTable::_extractTrailers (
string $buffer, int $start
): void

Extracts trailer information from a buffer.

Parameters
$buffer : string
 
$start : int
 
Exceptions

Throws SetaPDF_Core_Exception

_matchKeywords()

protected SetaPDF_Core_Parser_CorruptedCrossReferenceTable::_matchKeywords (
string $buffer, int $start
): void

Extracts offsets for specific keywords from a buffer.

Parameters
$buffer : string
 
$start : int
 

_screen()

protected SetaPDF_Core_Parser_CorruptedCrossReferenceTable::_screen (
void
): void

Screens the file for objects and keywords.

Exceptions

Throws SetaPDF_Core_Exception

cleanUp()

public SetaPDF_Core_Document_CrossReferenceTable::cleanUp (
void
): void

Release memory and cycled references.

deleteObject()

public SetaPDF_Core_Document_CrossReferenceTable::deleteObject (
integer $objectId
): void

Mark an object as deleted.

Parameters
$objectId : integer
 

ensureTrailer()

public SetaPDF_Core_Parser_CorruptedCrossReferenceTable::ensureTrailer (
void
): void

Ensures that a trailer dictionary exists or is created.

Exceptions

Throws SetaPDF_Core_Parser_CrossReferenceTable_Exception

Throws SetaPDF_Core_Type_IndirectReference_Exception

Throws SetaPDF_Core_Type_Exception

getCompressedStream()

public SetaPDF_Core_Document_CrossReferenceTable::getCompressedStream (
SetaPDF_Core_Type_Dictionary $value, integer $newPointerToXref [, boolean $onlyUpdated = true ]
): boolean|SetaPDF_Core_Type_Stream

Get the cross reference as a compressed stream object.

Parameters
$value : SetaPDF_Core_Type_Dictionary
 
$newPointerToXref : integer
 
$onlyUpdated : boolean
 

getDefinedObjectIds()

public SetaPDF_Core_Parser_CorruptedCrossReferenceTable::getDefinedObjectIds (
void
): array

Get all defined object ids.

getDefiniedObjectIds()

public SetaPDF_Core_Document_CrossReferenceTable::getDefiniedObjectIds (
void
): array

Alias for getDefinedObjectIds()

getGenerationNumberByObjectId()

public SetaPDF_Core_Parser_CorruptedCrossReferenceTable::getGenerationNumberByObjectId (
integer $objectId
): integer|boolean

Get the generation number by an object id.

Parameters
$objectId : integer
 
Exceptions

Throws SetaPDF_Core_Type_Exception

getOffsetFor()

public SetaPDF_Core_Document_CrossReferenceTable::getOffsetFor (
integer $objectId [, integer|null $generation = 0 ]
): integer|array|boolean

Get an offset for an object.

Parameters
$objectId : integer
 
$generation : integer|null
 

getParserOffsetFor()

public SetaPDF_Core_Parser_CorruptedCrossReferenceTable::getParserOffsetFor (
int $objectId [, int|null $generation = null [, integer &$objectGeneration = null ]]
): false|array

Returns the offset position for a specific object.

Parameters
$objectId : int
 
$generation : int|null
 
$objectGeneration : integer

The final generation number, resolved if no generation number was given.

getPointerToXref()

public SetaPDF_Core_Document_CrossReferenceTable::getPointerToXref (
void
): integer

Returns the offset of the last written xref table.

getSize()

public SetaPDF_Core_Document_CrossReferenceTable::getSize (
void
): integer

Get the size of the cross-reference table.

getTrailer()

public SetaPDF_Core_Parser_CorruptedCrossReferenceTable::getTrailer (
void
): SetaPDF_Core_Type_Dictionary

Returns the trailer dictionary.

isCompressed()

public SetaPDF_Core_Parser_CorruptedCrossReferenceTable::isCompressed (
void
): boolean

Check if the xref table uses compressed xref streams.

isOffsetUpdated()

public SetaPDF_Core_Document_CrossReferenceTable::isOffsetUpdated (
integer $objectId
): boolean

Checks if an objects offset is updated.

Parameters
$objectId : integer
 

offsetsUpdated()

public SetaPDF_Core_Document_CrossReferenceTable::offsetsUpdated (
void
): bool

Checks whether any offset was updated or not.

setOffsetFor()

public SetaPDF_Core_Document_CrossReferenceTable::setOffsetFor (
integer $objectId, integer $generation, integer|array $offset
): void

Set an object offset.

Parameters
$objectId : integer
 
$generation : integer
 
$offset : integer|array
 

updateSize()

public SetaPDF_Core_Document_CrossReferenceTable::updateSize (
integer $objectId
): void

Updates the size value of this cross-reference table.

Parameters
$objectId : integer
 

writeNormal()

public SetaPDF_Core_Document_CrossReferenceTable::writeNormal (
SetaPDF_Core_Writer_WriterInterface $writer [, boolean $onlyUpdated = true ]
): integer

Writes the cross reference to a writer.

Parameters
$writer : SetaPDF_Core_Writer_WriterInterface
 
$onlyUpdated : boolean
 

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