ILIAS  Release_5_0_x_branch Revision 61816
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Public Member Functions | Data Fields
OLE_PPS_Root Class Reference
+ Inheritance diagram for OLE_PPS_Root:
+ Collaboration diagram for OLE_PPS_Root:

Public Member Functions

 OLE_PPS_Root ($time_1st, $time_2nd, $raChild)
 Constructor.
 setTempDir ($dir)
 Sets the temp dir used for storing the OLE file.
 save ($filename)
 Method for saving the whole OLE container (including files).
 _calcSize (&$raList)
 Calculate some numbers.
 _adjust2 ($i2)
 Helper function for caculating a magic value for block sizes.
 _saveHeader ($iSBDcnt, $iBBcnt, $iPPScnt)
 Save OLE header.
 _saveBigData ($iStBlk, &$raList)
 Saving big data (PPS's with data bigger than OLE_DATA_SIZE_SMALL)
 _makeSmallData (&$raList)
 get small data (PPS's with data smaller than OLE_DATA_SIZE_SMALL)
 _savePps (&$raList)
 Saves all the PPS's WKs.
 _saveBbd ($iSbdSize, $iBsize, $iPpsCnt)
 Saving Big Block Depot.
- Public Member Functions inherited from OLE_PPS
 OLE_PPS ($No, $name, $type, $prev, $next, $dir, $time_1st, $time_2nd, $data, $children)
 The constructor.
 _DataLen ()
 Returns the amount of data saved for this PPS.
 _getPpsWk ()
 Returns a string with the PPS's WK (What is a WK?)
 _savePpsSetPnt (&$pps_array)
 Updates index and pointers to previous, next and children PPS's for this PPS.
- Public Member Functions inherited from PEAR
 PEAR ($error_class=null)
 Constructor.
 _PEAR ()
 Destructor (the emulated type of...).
& getStaticProperty ($class, $var)
 If you have a class that's mostly/entirely static, and you need static properties, you can use this method to simulate them.
 registerShutdownFunc ($func, $args=array())
 Use this function to register a shutdown method for static classes.
 isError ($data, $code=null)
 Tell whether a value is a PEAR error.
 setErrorHandling ($mode=null, $options=null)
 Sets how errors generated by this object should be handled.
 expectError ($code= '*')
 This method is used to tell which errors you expect to get.
 popExpect ()
 This method pops one element off the expected error codes stack.
 _checkDelExpect ($error_code)
 This method checks unsets an error code if available.
 delExpect ($error_code)
 This method deletes all occurences of the specified element from the expected error codes stack.
& raiseError ($message=null, $code=null, $mode=null, $options=null, $userinfo=null, $error_class=null, $skipmsg=false)
 This method is a wrapper that returns an instance of the configured error class with this object's default error handling applied.
& throwError ($message=null, $code=null, $userinfo=null)
 Simpler form of raiseError with fewer options.
 staticPushErrorHandling ($mode, $options=null)
 staticPopErrorHandling ()
 pushErrorHandling ($mode, $options=null)
 Push a new error handler on top of the error handler options stack.
 popErrorHandling ()
 Pop the last error handler used.
 loadExtension ($ext)
 OS independant PHP extension load.

Data Fields

 $_tmp_dir
- Data Fields inherited from OLE_PPS
 $No
 $Name
 $Type
 $PrevPps
 $NextPps
 $DirPps
 $Time1st
 $Time2nd
 $_StartBlock
 $Size
 $_data
 $children = array()
 $ole
- Data Fields inherited from PEAR
 $_debug = false
 $_default_error_mode = null
 $_default_error_options = null
 $_default_error_handler = ''
 $_error_class = 'PEAR_Error'
 $_expected_errors = array()

Detailed Description

Definition at line 33 of file Root.php.

Member Function Documentation

OLE_PPS_Root::_adjust2 (   $i2)

Helper function for caculating a magic value for block sizes.

private

Parameters
integer$i2The argument
See Also
save()
Returns
integer

Definition at line 186 of file Root.php.

Referenced by save().

{
$iWk = log($i2)/log(2);
return ($iWk > floor($iWk))? floor($iWk)+1:$iWk;
}

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OLE_PPS_Root::_calcSize ( &  $raList)

Calculate some numbers.

private

Parameters
array$raListReference to an array of PPS's
Returns
array The array of numbers

Definition at line 148 of file Root.php.

References OLE_DATA_SIZE_SMALL, OLE_LONG_INT_SIZE, OLE_PPS_SIZE, and OLE_PPS_TYPE_FILE.

Referenced by save().

{
// Calculate Basic Setting
list($iSBDcnt, $iBBcnt, $iPPScnt) = array(0,0,0);
$iSmallLen = 0;
$iSBcnt = 0;
for ($i = 0; $i < count($raList); $i++) {
if ($raList[$i]->Type == OLE_PPS_TYPE_FILE) {
$raList[$i]->Size = $raList[$i]->_DataLen();
if ($raList[$i]->Size < OLE_DATA_SIZE_SMALL) {
$iSBcnt += floor($raList[$i]->Size / $this->_SMALL_BLOCK_SIZE)
+ (($raList[$i]->Size % $this->_SMALL_BLOCK_SIZE)? 1: 0);
} else {
$iBBcnt += (floor($raList[$i]->Size / $this->_BIG_BLOCK_SIZE) +
(($raList[$i]->Size % $this->_BIG_BLOCK_SIZE)? 1: 0));
}
}
}
$iSmallLen = $iSBcnt * $this->_SMALL_BLOCK_SIZE;
$iSlCnt = floor($this->_BIG_BLOCK_SIZE / OLE_LONG_INT_SIZE);
$iSBDcnt = floor($iSBcnt / $iSlCnt) + (($iSBcnt % $iSlCnt)? 1:0);
$iBBcnt += (floor($iSmallLen / $this->_BIG_BLOCK_SIZE) +
(( $iSmallLen % $this->_BIG_BLOCK_SIZE)? 1: 0));
$iCnt = count($raList);
$iBdCnt = $this->_BIG_BLOCK_SIZE / OLE_PPS_SIZE;
$iPPScnt = (floor($iCnt/$iBdCnt) + (($iCnt % $iBdCnt)? 1: 0));
return array($iSBDcnt, $iBBcnt, $iPPScnt);
}

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OLE_PPS_Root::_makeSmallData ( &  $raList)

get small data (PPS's with data smaller than OLE_DATA_SIZE_SMALL)

private

Parameters
array&$raListReference to array of PPS's

Definition at line 327 of file Root.php.

References OLE_DATA_SIZE_SMALL, OLE_LONG_INT_SIZE, and OLE_PPS_TYPE_FILE.

Referenced by save().

{
$sRes = '';
$FILE = $this->_FILEH_;
$iSmBlk = 0;
for ($i = 0; $i < count($raList); $i++) {
// Make SBD, small data string
if ($raList[$i]->Type == OLE_PPS_TYPE_FILE) {
if ($raList[$i]->Size <= 0) {
continue;
}
if ($raList[$i]->Size < OLE_DATA_SIZE_SMALL) {
$iSmbCnt = floor($raList[$i]->Size / $this->_SMALL_BLOCK_SIZE)
+ (($raList[$i]->Size % $this->_SMALL_BLOCK_SIZE)? 1: 0);
// Add to SBD
for ($j = 0; $j < ($iSmbCnt-1); $j++) {
fwrite($FILE, pack("V", $j+$iSmBlk+1));
}
fwrite($FILE, pack("V", -2));
// Add to Data String(this will be written for RootEntry)
if ($raList[$i]->_PPS_FILE) {
fseek($raList[$i]->_PPS_FILE, 0); // To The Top
while ($sBuff = fread($raList[$i]->_PPS_FILE, 4096)) {
$sRes .= $sBuff;
}
} else {
$sRes .= $raList[$i]->_data;
}
if ($raList[$i]->Size % $this->_SMALL_BLOCK_SIZE) {
for ($j = 0; $j < ($this->_SMALL_BLOCK_SIZE - ($raList[$i]->Size % $this->_SMALL_BLOCK_SIZE)); $j++) {
$sRes .= "\x00";
}
}
// Set for PPS
$raList[$i]->_StartBlock = $iSmBlk;
$iSmBlk += $iSmbCnt;
}
}
}
$iSbCnt = floor($this->_BIG_BLOCK_SIZE / OLE_LONG_INT_SIZE);
if ($iSmBlk % $iSbCnt) {
for ($i = 0; $i < ($iSbCnt - ($iSmBlk % $iSbCnt)); $i++) {
fwrite($FILE, pack("V", -1));
}
}
return $sRes;
}

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OLE_PPS_Root::_saveBbd (   $iSbdSize,
  $iBsize,
  $iPpsCnt 
)

Saving Big Block Depot.

private

Parameters
integer$iSbdSize
integer$iBsize
integer$iPpsCnt

Definition at line 407 of file Root.php.

References OLE_LONG_INT_SIZE.

Referenced by save().

{
$FILE = $this->_FILEH_;
// Calculate Basic Setting
$iBbCnt = $this->_BIG_BLOCK_SIZE / OLE_LONG_INT_SIZE;
$i1stBdL = ($this->_BIG_BLOCK_SIZE - 0x4C) / OLE_LONG_INT_SIZE;
$iBdExL = 0;
$iAll = $iBsize + $iPpsCnt + $iSbdSize;
$iAllW = $iAll;
$iBdCntW = floor($iAllW / $iBbCnt) + (($iAllW % $iBbCnt)? 1: 0);
$iBdCnt = floor(($iAll + $iBdCntW) / $iBbCnt) + ((($iAllW+$iBdCntW) % $iBbCnt)? 1: 0);
// Calculate BD count
if ($iBdCnt >$i1stBdL) {
while (1) {
$iBdExL++;
$iAllW++;
$iBdCntW = floor($iAllW / $iBbCnt) + (($iAllW % $iBbCnt)? 1: 0);
$iBdCnt = floor(($iAllW + $iBdCntW) / $iBbCnt) + ((($iAllW+$iBdCntW) % $iBbCnt)? 1: 0);
if ($iBdCnt <= ($iBdExL*$iBbCnt+ $i1stBdL)) {
break;
}
}
}
// Making BD
// Set for SBD
if ($iSbdSize > 0) {
for ($i = 0; $i < ($iSbdSize - 1); $i++) {
fwrite($FILE, pack("V", $i+1));
}
fwrite($FILE, pack("V", -2));
}
// Set for B
for ($i = 0; $i < ($iBsize - 1); $i++) {
fwrite($FILE, pack("V", $i+$iSbdSize+1));
}
fwrite($FILE, pack("V", -2));
// Set for PPS
for ($i = 0; $i < ($iPpsCnt - 1); $i++) {
fwrite($FILE, pack("V", $i+$iSbdSize+$iBsize+1));
}
fwrite($FILE, pack("V", -2));
// Set for BBD itself ( 0xFFFFFFFD : BBD)
for ($i = 0; $i < $iBdCnt; $i++) {
fwrite($FILE, pack("V", 0xFFFFFFFD));
}
// Set for ExtraBDList
for ($i = 0; $i < $iBdExL; $i++) {
fwrite($FILE, pack("V", 0xFFFFFFFC));
}
// Adjust for Block
if (($iAllW + $iBdCnt) % $iBbCnt) {
for ($i = 0; $i < ($iBbCnt - (($iAllW + $iBdCnt) % $iBbCnt)); $i++) {
fwrite($FILE, pack("V", -1));
}
}
// Extra BDList
if ($iBdCnt > $i1stBdL) {
$iN=0;
$iNb=0;
for ($i = $i1stBdL;$i < $iBdCnt; $i++, $iN++) {
if ($iN >= ($iBbCnt - 1)) {
$iN = 0;
$iNb++;
fwrite($FILE, pack("V", $iAll+$iBdCnt+$iNb));
}
fwrite($FILE, pack("V", $iBsize+$iSbdSize+$iPpsCnt+$i));
}
if (($iBdCnt-$i1stBdL) % ($iBbCnt-1)) {
for ($i = 0; $i < (($iBbCnt - 1) - (($iBdCnt - $i1stBdL) % ($iBbCnt - 1))); $i++) {
fwrite($FILE, pack("V", -1));
}
}
fwrite($FILE, pack("V", -2));
}
}

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OLE_PPS_Root::_saveBigData (   $iStBlk,
&  $raList 
)

Saving big data (PPS's with data bigger than OLE_DATA_SIZE_SMALL)

private

Parameters
integer$iStBlk
array&$raListReference to array of PPS's

Definition at line 277 of file Root.php.

References OLE_DATA_SIZE_SMALL, OLE_PPS_TYPE_DIR, and OLE_PPS_TYPE_ROOT.

Referenced by save().

{
$FILE = $this->_FILEH_;
// cycle through PPS's
for ($i = 0; $i < count($raList); $i++) {
if ($raList[$i]->Type != OLE_PPS_TYPE_DIR) {
$raList[$i]->Size = $raList[$i]->_DataLen();
if (($raList[$i]->Size >= OLE_DATA_SIZE_SMALL) ||
(($raList[$i]->Type == OLE_PPS_TYPE_ROOT) && isset($raList[$i]->_data)))
{
// Write Data
if (isset($raList[$i]->_PPS_FILE)) {
$iLen = 0;
fseek($raList[$i]->_PPS_FILE, 0); // To The Top
while($sBuff = fread($raList[$i]->_PPS_FILE, 4096)) {
$iLen += strlen($sBuff);
fwrite($FILE, $sBuff);
}
} else {
fwrite($FILE, $raList[$i]->_data);
}
if ($raList[$i]->Size % $this->_BIG_BLOCK_SIZE) {
for ($j = 0; $j < ($this->_BIG_BLOCK_SIZE - ($raList[$i]->Size % $this->_BIG_BLOCK_SIZE)); $j++) {
fwrite($FILE, "\x00");
}
}
// Set For PPS
$raList[$i]->_StartBlock = $iStBlk;
$iStBlk +=
(floor($raList[$i]->Size / $this->_BIG_BLOCK_SIZE) +
(($raList[$i]->Size % $this->_BIG_BLOCK_SIZE)? 1: 0));
}
// Close file for each PPS, and unlink it
if (isset($raList[$i]->_PPS_FILE)) {
@fclose($raList[$i]->_PPS_FILE);
$raList[$i]->_PPS_FILE = null;
@unlink($raList[$i]->_tmp_filename);
}
}
}
}

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OLE_PPS_Root::_saveHeader (   $iSBDcnt,
  $iBBcnt,
  $iPPScnt 
)

Save OLE header.

private

Parameters
integer$iSBDcnt
integer$iBBcnt
integer$iPPScnt

Definition at line 200 of file Root.php.

References OLE_LONG_INT_SIZE.

Referenced by save().

{
$FILE = $this->_FILEH_;
// Calculate Basic Setting
$iBlCnt = $this->_BIG_BLOCK_SIZE / OLE_LONG_INT_SIZE;
$i1stBdL = ($this->_BIG_BLOCK_SIZE - 0x4C) / OLE_LONG_INT_SIZE;
$iBdExL = 0;
$iAll = $iBBcnt + $iPPScnt + $iSBDcnt;
$iAllW = $iAll;
$iBdCntW = floor($iAllW / $iBlCnt) + (($iAllW % $iBlCnt)? 1: 0);
$iBdCnt = floor(($iAll + $iBdCntW) / $iBlCnt) + ((($iAllW+$iBdCntW) % $iBlCnt)? 1: 0);
// Calculate BD count
if ($iBdCnt > $i1stBdL) {
while (1) {
$iBdExL++;
$iAllW++;
$iBdCntW = floor($iAllW / $iBlCnt) + (($iAllW % $iBlCnt)? 1: 0);
$iBdCnt = floor(($iAllW + $iBdCntW) / $iBlCnt) + ((($iAllW+$iBdCntW) % $iBlCnt)? 1: 0);
if ($iBdCnt <= ($iBdExL*$iBlCnt+ $i1stBdL)) {
break;
}
}
}
// Save Header
fwrite($FILE,
"\xD0\xCF\x11\xE0\xA1\xB1\x1A\xE1"
. "\x00\x00\x00\x00"
. "\x00\x00\x00\x00"
. "\x00\x00\x00\x00"
. "\x00\x00\x00\x00"
. pack("v", 0x3b)
. pack("v", 0x03)
. pack("v", -2)
. pack("v", 9)
. pack("v", 6)
. pack("v", 0)
. "\x00\x00\x00\x00"
. "\x00\x00\x00\x00"
. pack("V", $iBdCnt)
. pack("V", $iBBcnt+$iSBDcnt) //ROOT START
. pack("V", 0)
. pack("V", 0x1000)
. pack("V", 0) //Small Block Depot
. pack("V", 1)
);
// Extra BDList Start, Count
if ($iBdCnt < $i1stBdL) {
fwrite($FILE,
pack("V", -2). // Extra BDList Start
pack("V", 0) // Extra BDList Count
);
} else {
fwrite($FILE, pack("V", $iAll+$iBdCnt) . pack("V", $iBdExL));
}
// BDList
for ($i = 0; $i < $i1stBdL && $i < $iBdCnt; $i++) {
fwrite($FILE, pack("V", $iAll+$i));
}
if ($i < $i1stBdL) {
for ($j = 0; $j < ($i1stBdL-$i); $j++) {
fwrite($FILE, (pack("V", -1)));
}
}
}

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OLE_PPS_Root::_savePps ( &  $raList)

Saves all the PPS's WKs.

private

Parameters
array$raListReference to an array with all PPS's

Definition at line 383 of file Root.php.

References OLE_PPS\_getPpsWk(), and OLE_PPS_SIZE.

Referenced by save().

{
// Save each PPS WK
for ($i = 0; $i < count($raList); $i++) {
fwrite($this->_FILEH_, $raList[$i]->_getPpsWk());
}
// Adjust for Block
$iCnt = count($raList);
$iBCnt = $this->_BIG_BLOCK_SIZE / OLE_PPS_SIZE;
if ($iCnt % $iBCnt) {
for ($i = 0; $i < (($iBCnt - ($iCnt % $iBCnt)) * OLE_PPS_SIZE); $i++) {
fwrite($this->_FILEH_, "\x00");
}
}
}

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OLE_PPS_Root::OLE_PPS_Root (   $time_1st,
  $time_2nd,
  $raChild 
)

Constructor.

public

Parameters
integer$time_1stA timestamp
integer$time_2ndA timestamp

Definition at line 48 of file Root.php.

References OLE\Asc2Ucs(), OLE_PPS\OLE_PPS(), OLE_PPS_TYPE_ROOT, and System\tmpdir().

{
$this->_tmp_dir = System::tmpdir();
$this->OLE_PPS(
null,
OLE::Asc2Ucs('Root Entry'),
OLE_PPS_TYPE_ROOT,
null,
null,
null,
$time_1st,
$time_2nd,
null,
$raChild);
}

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OLE_PPS_Root::save (   $filename)

Method for saving the whole OLE container (including files).

In fact, if called with an empty argument (or '-'), it saves to a temporary file and then outputs it's contents to stdout.

Parameters
string$filenameThe name of the file where to save the OLE container public
Returns
mixed true on success, PEAR_Error on failure

Definition at line 89 of file Root.php.

References $filename, _adjust2(), _calcSize(), _makeSmallData(), _saveBbd(), _saveBigData(), _saveHeader(), _savePps(), OLE_PPS\_savePpsSetPnt(), and PEAR\raiseError().

{
// Initial Setting for saving
$this->_BIG_BLOCK_SIZE = pow(2,
((isset($this->_BIG_BLOCK_SIZE))? $this->_adjust2($this->_BIG_BLOCK_SIZE) : 9));
$this->_SMALL_BLOCK_SIZE= pow(2,
((isset($this->_SMALL_BLOCK_SIZE))? $this->_adjust2($this->_SMALL_BLOCK_SIZE): 6));
// Open temp file if we are sending output to stdout
if (($filename == '-') || ($filename == '')) {
$this->_tmp_filename = tempnam($this->_tmp_dir, "OLE_PPS_Root");
$this->_FILEH_ = @fopen($this->_tmp_filename,"w+b");
if ($this->_FILEH_ == false) {
return $this->raiseError("Can't create temporary file.");
}
} else {
$this->_FILEH_ = @fopen($filename, "wb");
if ($this->_FILEH_ == false) {
return $this->raiseError("Can't open $filename. It may be in use or protected.");
}
}
// Make an array of PPS's (for Save)
$aList = array();
$this->_savePpsSetPnt($aList);
// calculate values for header
list($iSBDcnt, $iBBcnt, $iPPScnt) = $this->_calcSize($aList); //, $rhInfo);
// Save Header
$this->_saveHeader($iSBDcnt, $iBBcnt, $iPPScnt);
// Make Small Data string (write SBD)
$this->_data = $this->_makeSmallData($aList);
// Write BB
$this->_saveBigData($iSBDcnt, $aList);
// Write PPS
$this->_savePps($aList);
// Write Big Block Depot and BDList and Adding Header informations
$this->_saveBbd($iSBDcnt, $iBBcnt, $iPPScnt);
// Close File, send it to stdout if necessary
if (($filename == '-') || ($filename == '')) {
fseek($this->_FILEH_, 0);
fpassthru($this->_FILEH_);
@fclose($this->_FILEH_);
// Delete the temporary file.
@unlink($this->_tmp_filename);
} else {
@fclose($this->_FILEH_);
}
return true;
}

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OLE_PPS_Root::setTempDir (   $dir)

Sets the temp dir used for storing the OLE file.

public

Parameters
string$dirThe dir to be used as temp dir
Returns
true if given dir is valid, false otherwise

Definition at line 71 of file Root.php.

{
if (is_dir($dir)) {
$this->_tmp_dir = $dir;
return true;
}
return false;
}

Field Documentation

OLE_PPS_Root::$_tmp_dir

Definition at line 39 of file Root.php.

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