From f229815dc0de3864ea9f5320440a58eb6dfe38eb Mon Sep 17 00:00:00 2001 From: M_Viper Date: Sun, 10 Mar 2024 15:31:23 +0000 Subject: [PATCH] Dateien nach "includes/PHPExcel/Classes/PHPExcel/Reader/Excel5" hochladen --- .../Classes/PHPExcel/Reader/Excel5/Escher.php | 640 ++++++++++++++++++ .../Classes/PHPExcel/Reader/Excel5/MD5.php | 221 ++++++ .../Classes/PHPExcel/Reader/Excel5/RC4.php | 88 +++ 3 files changed, 949 insertions(+) create mode 100644 includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/Escher.php create mode 100644 includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/MD5.php create mode 100644 includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/RC4.php diff --git a/includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/Escher.php b/includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/Escher.php new file mode 100644 index 0000000..8dc5e90 --- /dev/null +++ b/includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/Escher.php @@ -0,0 +1,640 @@ +_object = $object; + } + + /** + * Load Escher stream data. May be a partial Escher stream. + * + * @param string $data + */ + public function load($data) + { + $this->_data = $data; + + // total byte size of Excel data (workbook global substream + sheet substreams) + $this->_dataSize = strlen($this->_data); + + $this->_pos = 0; + + // Parse Escher stream + while ($this->_pos < $this->_dataSize) { + + // offset: 2; size: 2: Record Type + $fbt = PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos + 2); + + switch ($fbt) { + case self::DGGCONTAINER: $this->_readDggContainer(); break; + case self::DGG: $this->_readDgg(); break; + case self::BSTORECONTAINER: $this->_readBstoreContainer(); break; + case self::BSE: $this->_readBSE(); break; + case self::BLIPJPEG: $this->_readBlipJPEG(); break; + case self::BLIPPNG: $this->_readBlipPNG(); break; + case self::OPT: $this->_readOPT(); break; + case self::TERTIARYOPT: $this->_readTertiaryOPT(); break; + case self::SPLITMENUCOLORS: $this->_readSplitMenuColors(); break; + case self::DGCONTAINER: $this->_readDgContainer(); break; + case self::DG: $this->_readDg(); break; + case self::SPGRCONTAINER: $this->_readSpgrContainer(); break; + case self::SPCONTAINER: $this->_readSpContainer(); break; + case self::SPGR: $this->_readSpgr(); break; + case self::SP: $this->_readSp(); break; + case self::CLIENTTEXTBOX: $this->_readClientTextbox(); break; + case self::CLIENTANCHOR: $this->_readClientAnchor(); break; + case self::CLIENTDATA: $this->_readClientData(); break; + default: $this->_readDefault(); break; + } + } + + return $this->_object; + } + + /** + * Read a generic record + */ + private function _readDefault() + { + // offset 0; size: 2; recVer and recInstance + $verInstance = PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos); + + // offset: 2; size: 2: Record Type + $fbt = PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos + 2); + + // bit: 0-3; mask: 0x000F; recVer + $recVer = (0x000F & $verInstance) >> 0; + + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + } + + /** + * Read DggContainer record (Drawing Group Container) + */ + private function _readDggContainer() + { + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + + // record is a container, read contents + $dggContainer = new PHPExcel_Shared_Escher_DggContainer(); + $this->_object->setDggContainer($dggContainer); + $reader = new PHPExcel_Reader_Excel5_Escher($dggContainer); + $reader->load($recordData); + } + + /** + * Read Dgg record (Drawing Group) + */ + private function _readDgg() + { + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + } + + /** + * Read BstoreContainer record (Blip Store Container) + */ + private function _readBstoreContainer() + { + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + + // record is a container, read contents + $bstoreContainer = new PHPExcel_Shared_Escher_DggContainer_BstoreContainer(); + $this->_object->setBstoreContainer($bstoreContainer); + $reader = new PHPExcel_Reader_Excel5_Escher($bstoreContainer); + $reader->load($recordData); + } + + /** + * Read BSE record + */ + private function _readBSE() + { + // offset: 0; size: 2; recVer and recInstance + + // bit: 4-15; mask: 0xFFF0; recInstance + $recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4; + + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + + // add BSE to BstoreContainer + $BSE = new PHPExcel_Shared_Escher_DggContainer_BstoreContainer_BSE(); + $this->_object->addBSE($BSE); + + $BSE->setBLIPType($recInstance); + + // offset: 0; size: 1; btWin32 (MSOBLIPTYPE) + $btWin32 = ord($recordData[0]); + + // offset: 1; size: 1; btWin32 (MSOBLIPTYPE) + $btMacOS = ord($recordData[1]); + + // offset: 2; size: 16; MD4 digest + $rgbUid = substr($recordData, 2, 16); + + // offset: 18; size: 2; tag + $tag = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 18); + + // offset: 20; size: 4; size of BLIP in bytes + $size = PHPExcel_Reader_Excel5::_GetInt4d($recordData, 20); + + // offset: 24; size: 4; number of references to this BLIP + $cRef = PHPExcel_Reader_Excel5::_GetInt4d($recordData, 24); + + // offset: 28; size: 4; MSOFO file offset + $foDelay = PHPExcel_Reader_Excel5::_GetInt4d($recordData, 28); + + // offset: 32; size: 1; unused1 + $unused1 = ord($recordData{32}); + + // offset: 33; size: 1; size of nameData in bytes (including null terminator) + $cbName = ord($recordData{33}); + + // offset: 34; size: 1; unused2 + $unused2 = ord($recordData{34}); + + // offset: 35; size: 1; unused3 + $unused3 = ord($recordData{35}); + + // offset: 36; size: $cbName; nameData + $nameData = substr($recordData, 36, $cbName); + + // offset: 36 + $cbName, size: var; the BLIP data + $blipData = substr($recordData, 36 + $cbName); + + // record is a container, read contents + $reader = new PHPExcel_Reader_Excel5_Escher($BSE); + $reader->load($blipData); + } + + /** + * Read BlipJPEG record. Holds raw JPEG image data + */ + private function _readBlipJPEG() + { + // offset: 0; size: 2; recVer and recInstance + + // bit: 4-15; mask: 0xFFF0; recInstance + $recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4; + + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + + $pos = 0; + + // offset: 0; size: 16; rgbUid1 (MD4 digest of) + $rgbUid1 = substr($recordData, 0, 16); + $pos += 16; + + // offset: 16; size: 16; rgbUid2 (MD4 digest), only if $recInstance = 0x46B or 0x6E3 + if (in_array($recInstance, array(0x046B, 0x06E3))) { + $rgbUid2 = substr($recordData, 16, 16); + $pos += 16; + } + + // offset: var; size: 1; tag + $tag = ord($recordData{$pos}); + $pos += 1; + + // offset: var; size: var; the raw image data + $data = substr($recordData, $pos); + + $blip = new PHPExcel_Shared_Escher_DggContainer_BstoreContainer_BSE_Blip(); + $blip->setData($data); + + $this->_object->setBlip($blip); + } + + /** + * Read BlipPNG record. Holds raw PNG image data + */ + private function _readBlipPNG() + { + // offset: 0; size: 2; recVer and recInstance + + // bit: 4-15; mask: 0xFFF0; recInstance + $recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4; + + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + + $pos = 0; + + // offset: 0; size: 16; rgbUid1 (MD4 digest of) + $rgbUid1 = substr($recordData, 0, 16); + $pos += 16; + + // offset: 16; size: 16; rgbUid2 (MD4 digest), only if $recInstance = 0x46B or 0x6E3 + if ($recInstance == 0x06E1) { + $rgbUid2 = substr($recordData, 16, 16); + $pos += 16; + } + + // offset: var; size: 1; tag + $tag = ord($recordData{$pos}); + $pos += 1; + + // offset: var; size: var; the raw image data + $data = substr($recordData, $pos); + + $blip = new PHPExcel_Shared_Escher_DggContainer_BstoreContainer_BSE_Blip(); + $blip->setData($data); + + $this->_object->setBlip($blip); + } + + /** + * Read OPT record. This record may occur within DggContainer record or SpContainer + */ + private function _readOPT() + { + // offset: 0; size: 2; recVer and recInstance + + // bit: 4-15; mask: 0xFFF0; recInstance + $recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4; + + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + + $this->_readOfficeArtRGFOPTE($recordData, $recInstance); + } + + /** + * Read TertiaryOPT record + */ + private function _readTertiaryOPT() + { + // offset: 0; size: 2; recVer and recInstance + + // bit: 4-15; mask: 0xFFF0; recInstance + $recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4; + + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + } + + /** + * Read SplitMenuColors record + */ + private function _readSplitMenuColors() + { + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + } + + /** + * Read DgContainer record (Drawing Container) + */ + private function _readDgContainer() + { + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + + // record is a container, read contents + $dgContainer = new PHPExcel_Shared_Escher_DgContainer(); + $this->_object->setDgContainer($dgContainer); + $reader = new PHPExcel_Reader_Excel5_Escher($dgContainer); + $escher = $reader->load($recordData); + } + + /** + * Read Dg record (Drawing) + */ + private function _readDg() + { + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + } + + /** + * Read SpgrContainer record (Shape Group Container) + */ + private function _readSpgrContainer() + { + // context is either context DgContainer or SpgrContainer + + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + + // record is a container, read contents + $spgrContainer = new PHPExcel_Shared_Escher_DgContainer_SpgrContainer(); + + if ($this->_object instanceof PHPExcel_Shared_Escher_DgContainer) { + // DgContainer + $this->_object->setSpgrContainer($spgrContainer); + } else { + // SpgrContainer + $this->_object->addChild($spgrContainer); + } + + $reader = new PHPExcel_Reader_Excel5_Escher($spgrContainer); + $escher = $reader->load($recordData); + } + + /** + * Read SpContainer record (Shape Container) + */ + private function _readSpContainer() + { + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // add spContainer to spgrContainer + $spContainer = new PHPExcel_Shared_Escher_DgContainer_SpgrContainer_SpContainer(); + $this->_object->addChild($spContainer); + + // move stream pointer to next record + $this->_pos += 8 + $length; + + // record is a container, read contents + $reader = new PHPExcel_Reader_Excel5_Escher($spContainer); + $escher = $reader->load($recordData); + } + + /** + * Read Spgr record (Shape Group) + */ + private function _readSpgr() + { + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + } + + /** + * Read Sp record (Shape) + */ + private function _readSp() + { + // offset: 0; size: 2; recVer and recInstance + + // bit: 4-15; mask: 0xFFF0; recInstance + $recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4; + + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + } + + /** + * Read ClientTextbox record + */ + private function _readClientTextbox() + { + // offset: 0; size: 2; recVer and recInstance + + // bit: 4-15; mask: 0xFFF0; recInstance + $recInstance = (0xFFF0 & PHPExcel_Reader_Excel5::_GetInt2d($this->_data, $this->_pos)) >> 4; + + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + } + + /** + * Read ClientAnchor record. This record holds information about where the shape is anchored in worksheet + */ + private function _readClientAnchor() + { + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + + // offset: 2; size: 2; upper-left corner column index (0-based) + $c1 = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 2); + + // offset: 4; size: 2; upper-left corner horizontal offset in 1/1024 of column width + $startOffsetX = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 4); + + // offset: 6; size: 2; upper-left corner row index (0-based) + $r1 = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 6); + + // offset: 8; size: 2; upper-left corner vertical offset in 1/256 of row height + $startOffsetY = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 8); + + // offset: 10; size: 2; bottom-right corner column index (0-based) + $c2 = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 10); + + // offset: 12; size: 2; bottom-right corner horizontal offset in 1/1024 of column width + $endOffsetX = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 12); + + // offset: 14; size: 2; bottom-right corner row index (0-based) + $r2 = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 14); + + // offset: 16; size: 2; bottom-right corner vertical offset in 1/256 of row height + $endOffsetY = PHPExcel_Reader_Excel5::_GetInt2d($recordData, 16); + + // set the start coordinates + $this->_object->setStartCoordinates(PHPExcel_Cell::stringFromColumnIndex($c1) . ($r1 + 1)); + + // set the start offsetX + $this->_object->setStartOffsetX($startOffsetX); + + // set the start offsetY + $this->_object->setStartOffsetY($startOffsetY); + + // set the end coordinates + $this->_object->setEndCoordinates(PHPExcel_Cell::stringFromColumnIndex($c2) . ($r2 + 1)); + + // set the end offsetX + $this->_object->setEndOffsetX($endOffsetX); + + // set the end offsetY + $this->_object->setEndOffsetY($endOffsetY); + } + + /** + * Read ClientData record + */ + private function _readClientData() + { + $length = PHPExcel_Reader_Excel5::_GetInt4d($this->_data, $this->_pos + 4); + $recordData = substr($this->_data, $this->_pos + 8, $length); + + // move stream pointer to next record + $this->_pos += 8 + $length; + } + + /** + * Read OfficeArtRGFOPTE table of property-value pairs + * + * @param string $data Binary data + * @param int $n Number of properties + */ + private function _readOfficeArtRGFOPTE($data, $n) { + + $splicedComplexData = substr($data, 6 * $n); + + // loop through property-value pairs + for ($i = 0; $i < $n; ++$i) { + // read 6 bytes at a time + $fopte = substr($data, 6 * $i, 6); + + // offset: 0; size: 2; opid + $opid = PHPExcel_Reader_Excel5::_GetInt2d($fopte, 0); + + // bit: 0-13; mask: 0x3FFF; opid.opid + $opidOpid = (0x3FFF & $opid) >> 0; + + // bit: 14; mask 0x4000; 1 = value in op field is BLIP identifier + $opidFBid = (0x4000 & $opid) >> 14; + + // bit: 15; mask 0x8000; 1 = this is a complex property, op field specifies size of complex data + $opidFComplex = (0x8000 & $opid) >> 15; + + // offset: 2; size: 4; the value for this property + $op = PHPExcel_Reader_Excel5::_GetInt4d($fopte, 2); + + if ($opidFComplex) { + $complexData = substr($splicedComplexData, 0, $op); + $splicedComplexData = substr($splicedComplexData, $op); + + // we store string value with complex data + $value = $complexData; + } else { + // we store integer value + $value = $op; + } + + $this->_object->setOPT($opidOpid, $value); + } + } + +} diff --git a/includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/MD5.php b/includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/MD5.php new file mode 100644 index 0000000..097e975 --- /dev/null +++ b/includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/MD5.php @@ -0,0 +1,221 @@ +reset(); + } + + + /** + * Reset the MD5 stream context + */ + public function reset() + { + $this->a = 0x67452301; + $this->b = 0xEFCDAB89; + $this->c = 0x98BADCFE; + $this->d = 0x10325476; + } + + + /** + * Get MD5 stream context + * + * @return string + */ + public function getContext() + { + $s = ''; + foreach (array('a', 'b', 'c', 'd') as $i) { + $v = $this->{$i}; + $s .= chr($v & 0xff); + $s .= chr(($v >> 8) & 0xff); + $s .= chr(($v >> 16) & 0xff); + $s .= chr(($v >> 24) & 0xff); + } + + return $s; + } + + + /** + * Add data to context + * + * @param string $data Data to add + */ + public function add($data) + { + $words = array_values(unpack('V16', $data)); + + $A = $this->a; + $B = $this->b; + $C = $this->c; + $D = $this->d; + + $F = array('PHPExcel_Reader_Excel5_MD5','F'); + $G = array('PHPExcel_Reader_Excel5_MD5','G'); + $H = array('PHPExcel_Reader_Excel5_MD5','H'); + $I = array('PHPExcel_Reader_Excel5_MD5','I'); + + /* ROUND 1 */ + self::step($F, $A, $B, $C, $D, $words[0], 7, 0xd76aa478); + self::step($F, $D, $A, $B, $C, $words[1], 12, 0xe8c7b756); + self::step($F, $C, $D, $A, $B, $words[2], 17, 0x242070db); + self::step($F, $B, $C, $D, $A, $words[3], 22, 0xc1bdceee); + self::step($F, $A, $B, $C, $D, $words[4], 7, 0xf57c0faf); + self::step($F, $D, $A, $B, $C, $words[5], 12, 0x4787c62a); + self::step($F, $C, $D, $A, $B, $words[6], 17, 0xa8304613); + self::step($F, $B, $C, $D, $A, $words[7], 22, 0xfd469501); + self::step($F, $A, $B, $C, $D, $words[8], 7, 0x698098d8); + self::step($F, $D, $A, $B, $C, $words[9], 12, 0x8b44f7af); + self::step($F, $C, $D, $A, $B, $words[10], 17, 0xffff5bb1); + self::step($F, $B, $C, $D, $A, $words[11], 22, 0x895cd7be); + self::step($F, $A, $B, $C, $D, $words[12], 7, 0x6b901122); + self::step($F, $D, $A, $B, $C, $words[13], 12, 0xfd987193); + self::step($F, $C, $D, $A, $B, $words[14], 17, 0xa679438e); + self::step($F, $B, $C, $D, $A, $words[15], 22, 0x49b40821); + + /* ROUND 2 */ + self::step($G, $A, $B, $C, $D, $words[1], 5, 0xf61e2562); + self::step($G, $D, $A, $B, $C, $words[6], 9, 0xc040b340); + self::step($G, $C, $D, $A, $B, $words[11], 14, 0x265e5a51); + self::step($G, $B, $C, $D, $A, $words[0], 20, 0xe9b6c7aa); + self::step($G, $A, $B, $C, $D, $words[5], 5, 0xd62f105d); + self::step($G, $D, $A, $B, $C, $words[10], 9, 0x02441453); + self::step($G, $C, $D, $A, $B, $words[15], 14, 0xd8a1e681); + self::step($G, $B, $C, $D, $A, $words[4], 20, 0xe7d3fbc8); + self::step($G, $A, $B, $C, $D, $words[9], 5, 0x21e1cde6); + self::step($G, $D, $A, $B, $C, $words[14], 9, 0xc33707d6); + self::step($G, $C, $D, $A, $B, $words[3], 14, 0xf4d50d87); + self::step($G, $B, $C, $D, $A, $words[8], 20, 0x455a14ed); + self::step($G, $A, $B, $C, $D, $words[13], 5, 0xa9e3e905); + self::step($G, $D, $A, $B, $C, $words[2], 9, 0xfcefa3f8); + self::step($G, $C, $D, $A, $B, $words[7], 14, 0x676f02d9); + self::step($G, $B, $C, $D, $A, $words[12], 20, 0x8d2a4c8a); + + /* ROUND 3 */ + self::step($H, $A, $B, $C, $D, $words[5], 4, 0xfffa3942); + self::step($H, $D, $A, $B, $C, $words[8], 11, 0x8771f681); + self::step($H, $C, $D, $A, $B, $words[11], 16, 0x6d9d6122); + self::step($H, $B, $C, $D, $A, $words[14], 23, 0xfde5380c); + self::step($H, $A, $B, $C, $D, $words[1], 4, 0xa4beea44); + self::step($H, $D, $A, $B, $C, $words[4], 11, 0x4bdecfa9); + self::step($H, $C, $D, $A, $B, $words[7], 16, 0xf6bb4b60); + self::step($H, $B, $C, $D, $A, $words[10], 23, 0xbebfbc70); + self::step($H, $A, $B, $C, $D, $words[13], 4, 0x289b7ec6); + self::step($H, $D, $A, $B, $C, $words[0], 11, 0xeaa127fa); + self::step($H, $C, $D, $A, $B, $words[3], 16, 0xd4ef3085); + self::step($H, $B, $C, $D, $A, $words[6], 23, 0x04881d05); + self::step($H, $A, $B, $C, $D, $words[9], 4, 0xd9d4d039); + self::step($H, $D, $A, $B, $C, $words[12], 11, 0xe6db99e5); + self::step($H, $C, $D, $A, $B, $words[15], 16, 0x1fa27cf8); + self::step($H, $B, $C, $D, $A, $words[2], 23, 0xc4ac5665); + + /* ROUND 4 */ + self::step($I, $A, $B, $C, $D, $words[0], 6, 0xf4292244); + self::step($I, $D, $A, $B, $C, $words[7], 10, 0x432aff97); + self::step($I, $C, $D, $A, $B, $words[14], 15, 0xab9423a7); + self::step($I, $B, $C, $D, $A, $words[5], 21, 0xfc93a039); + self::step($I, $A, $B, $C, $D, $words[12], 6, 0x655b59c3); + self::step($I, $D, $A, $B, $C, $words[3], 10, 0x8f0ccc92); + self::step($I, $C, $D, $A, $B, $words[10], 15, 0xffeff47d); + self::step($I, $B, $C, $D, $A, $words[1], 21, 0x85845dd1); + self::step($I, $A, $B, $C, $D, $words[8], 6, 0x6fa87e4f); + self::step($I, $D, $A, $B, $C, $words[15], 10, 0xfe2ce6e0); + self::step($I, $C, $D, $A, $B, $words[6], 15, 0xa3014314); + self::step($I, $B, $C, $D, $A, $words[13], 21, 0x4e0811a1); + self::step($I, $A, $B, $C, $D, $words[4], 6, 0xf7537e82); + self::step($I, $D, $A, $B, $C, $words[11], 10, 0xbd3af235); + self::step($I, $C, $D, $A, $B, $words[2], 15, 0x2ad7d2bb); + self::step($I, $B, $C, $D, $A, $words[9], 21, 0xeb86d391); + + $this->a = ($this->a + $A) & 0xffffffff; + $this->b = ($this->b + $B) & 0xffffffff; + $this->c = ($this->c + $C) & 0xffffffff; + $this->d = ($this->d + $D) & 0xffffffff; + } + + + private static function F($X, $Y, $Z) + { + return (($X & $Y) | ((~ $X) & $Z)); // X AND Y OR NOT X AND Z + } + + + private static function G($X, $Y, $Z) + { + return (($X & $Z) | ($Y & (~ $Z))); // X AND Z OR Y AND NOT Z + } + + + private static function H($X, $Y, $Z) + { + return ($X ^ $Y ^ $Z); // X XOR Y XOR Z + } + + + private static function I($X, $Y, $Z) + { + return ($Y ^ ($X | (~ $Z))) ; // Y XOR (X OR NOT Z) + } + + + private static function step($func, &$A, $B, $C, $D, $M, $s, $t) + { + $A = ($A + call_user_func($func, $B, $C, $D) + $M + $t) & 0xffffffff; + $A = self::rotate($A, $s); + $A = ($B + $A) & 0xffffffff; + } + + + private static function rotate($decimal, $bits) + { + $binary = str_pad(decbin($decimal), 32, "0", STR_PAD_LEFT); + return bindec(substr($binary, $bits).substr($binary, 0, $bits)); + } +} \ No newline at end of file diff --git a/includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/RC4.php b/includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/RC4.php new file mode 100644 index 0000000..199ee19 --- /dev/null +++ b/includes/PHPExcel/Classes/PHPExcel/Reader/Excel5/RC4.php @@ -0,0 +1,88 @@ +i = 0; $this->i < 256; $this->i++) { + $this->s[$this->i] = $this->i; + } + + $this->j = 0; + for ($this->i = 0; $this->i < 256; $this->i++) { + $this->j = ($this->j + $this->s[$this->i] + ord($key[$this->i % $len])) % 256; + $t = $this->s[$this->i]; + $this->s[$this->i] = $this->s[$this->j]; + $this->s[$this->j] = $t; + } + $this->i = $this->j = 0; + } + + /** + * Symmetric decryption/encryption function + * + * @param string $data Data to encrypt/decrypt + * + * @return string + */ + public function RC4($data) + { + $len = strlen($data); + for ($c = 0; $c < $len; $c++) { + $this->i = ($this->i + 1) % 256; + $this->j = ($this->j + $this->s[$this->i]) % 256; + $t = $this->s[$this->i]; + $this->s[$this->i] = $this->s[$this->j]; + $this->s[$this->j] = $t; + + $t = ($this->s[$this->i] + $this->s[$this->j]) % 256; + + $data[$c] = chr(ord($data[$c]) ^ $this->s[$t]); + } + return $data; + } +}