ILIAS  release_5-1 Revision 5.0.0-5477-g43f3e3fab5f
Public Member Functions
getid3_szip Class Reference

getID3() by James Heinrich info@.nosp@m.geti.nosp@m.d3.or.nosp@m.g // More...

+ Inheritance diagram for getid3_szip:
+ Collaboration diagram for getid3_szip:

Public Member Functions

 getid3_szip (&$fd, &$ThisFileInfo)
 
 Analyze ()
 
- Public Member Functions inherited from getid3_handler
 __construct (getID3 $getid3, $call_module=null)
 
 Analyze ()
 
 AnalyzeString ($string)
 
 setStringMode ($string)
 
 saveAttachment ($name, $offset, $length, $image_mime=null)
 

Additional Inherited Members

- Protected Member Functions inherited from getid3_handler
 ftell ()
 
 fread ($bytes)
 
 fseek ($bytes, $whence=SEEK_SET)
 
 feof ()
 
 isDependencyFor ($module)
 
 error ($text)
 
 warning ($text)
 
 notice ($text)
 
- Protected Attributes inherited from getid3_handler
 $getid3
 
 $data_string_flag = false
 
 $data_string = ''
 
 $data_string_position = 0
 
 $data_string_length = 0
 

Detailed Description

getID3() by James Heinrich info@.nosp@m.geti.nosp@m.d3.or.nosp@m.g //

Definition at line 17 of file module.archive.szip.php.

Member Function Documentation

◆ Analyze()

getid3_szip::Analyze ( )

Reimplemented from getid3_handler.

Definition at line 21 of file module.archive.szip.php.

21 {
22 $info = &$this->getid3->info;
23
24 $this->fseek($info['avdataoffset']);
25 $SZIPHeader = $this->fread(6);
26 if (substr($SZIPHeader, 0, 4) != "SZ\x0A\x04") {
27 $info['error'][] = 'Expecting "53 5A 0A 04" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes(substr($SZIPHeader, 0, 4)).'"';
28 return false;
29 }
30 $info['fileformat'] = 'szip';
31 $info['szip']['major_version'] = getid3_lib::BigEndian2Int(substr($SZIPHeader, 4, 1));
32 $info['szip']['minor_version'] = getid3_lib::BigEndian2Int(substr($SZIPHeader, 5, 1));
33$info['error'][] = 'SZIP parsing not enabled in this version of getID3() ['.$this->getid3->version().']';
34return false;
35
36 while (!$this->feof()) {
37 $NextBlockID = $this->fread(2);
38 switch ($NextBlockID) {
39 case 'SZ':
40 // Note that szip files can be concatenated, this has the same effect as
41 // concatenating the files. this also means that global header blocks
42 // might be present between directory/data blocks.
43 $this->fseek(4, SEEK_CUR);
44 break;
45
46 case 'BH':
47 $BHheaderbytes = getid3_lib::BigEndian2Int($this->fread(3));
48 $BHheaderdata = $this->fread($BHheaderbytes);
49 $BHheaderoffset = 0;
50 while (strpos($BHheaderdata, "\x00", $BHheaderoffset) > 0) {
51 //filename as \0 terminated string (empty string indicates end)
52 //owner as \0 terminated string (empty is same as last file)
53 //group as \0 terminated string (empty is same as last file)
54 //3 byte filelength in this block
55 //2 byte access flags
56 //4 byte creation time (like in unix)
57 //4 byte modification time (like in unix)
58 //4 byte access time (like in unix)
59
60 $BHdataArray['filename'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, "\x00"));
61 $BHheaderoffset += (strlen($BHdataArray['filename']) + 1);
62
63 $BHdataArray['owner'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, "\x00"));
64 $BHheaderoffset += (strlen($BHdataArray['owner']) + 1);
65
66 $BHdataArray['group'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, "\x00"));
67 $BHheaderoffset += (strlen($BHdataArray['group']) + 1);
68
69 $BHdataArray['filelength'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 3));
70 $BHheaderoffset += 3;
71
72 $BHdataArray['access_flags'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 2));
73 $BHheaderoffset += 2;
74
75 $BHdataArray['creation_time'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4));
76 $BHheaderoffset += 4;
77
78 $BHdataArray['modification_time'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4));
79 $BHheaderoffset += 4;
80
81 $BHdataArray['access_time'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4));
82 $BHheaderoffset += 4;
83
84 $info['szip']['BH'][] = $BHdataArray;
85 }
86 break;
87
88 default:
89 break 2;
90 }
91 }
92
93 return true;
94
95 }
getid3_handler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: getid3.php:1697
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_handler\feof
feof()
Definition: getid3.php:1727
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
getid3_lib\PrintHexBytes
PrintHexBytes($string, $hex=true, $spaces=true, $htmlsafe=true)
Definition: getid3.lib.php:17
$info
$info
Definition: example_052.php:80

References $info, getid3_lib\BigEndian2Int(), getid3_handler\feof(), getid3_handler\fread(), getid3_handler\fseek(), and getid3_lib\PrintHexBytes().

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◆ getid3_szip()

getid3_szip::getid3_szip ( &  $fd,
&  $ThisFileInfo 
)

Definition at line 20 of file module.archive.szip.php.

20 {
21
22 fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
23 $SZIPHeader = fread($fd, 6);
24 if (substr($SZIPHeader, 0, 4) != 'SZ'."\x0A\x04") {
25 $ThisFileInfo['error'][] = 'Expecting "SZ[x0A][x04]" at offset '.$ThisFileInfo['avdataoffset'].', found "'.substr($SZIPHeader, 0, 4).'"';
26 return false;
27 }
28
29 $ThisFileInfo['fileformat'] = 'szip';
30
31 $ThisFileInfo['szip']['major_version'] = getid3_lib::BigEndian2Int(substr($SZIPHeader, 4, 1));
32 $ThisFileInfo['szip']['minor_version'] = getid3_lib::BigEndian2Int(substr($SZIPHeader, 5, 1));
33
34 while (!feof($fd)) {
35 $NextBlockID = fread($fd, 2);
36 switch ($NextBlockID) {
37 case 'SZ':
38 // Note that szip files can be concatenated, this has the same effect as
39 // concatenating the files. this also means that global header blocks
40 // might be present between directory/data blocks.
41 fseek($fd, 4, SEEK_CUR);
42 break;
43
44 case 'BH':
45 $BHheaderbytes = getid3_lib::BigEndian2Int(fread($fd, 3));
46 $BHheaderdata = fread($fd, $BHheaderbytes);
47 $BHheaderoffset = 0;
48 while (strpos($BHheaderdata, "\x00", $BHheaderoffset) > 0) {
49 //filename as \0 terminated string (empty string indicates end)
50 //owner as \0 terminated string (empty is same as last file)
51 //group as \0 terminated string (empty is same as last file)
52 //3 byte filelength in this block
53 //2 byte access flags
54 //4 byte creation time (like in unix)
55 //4 byte modification time (like in unix)
56 //4 byte access time (like in unix)
57
58 $BHdataArray['filename'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, "\x00"));
59 $BHheaderoffset += (strlen($BHdataArray['filename']) + 1);
60
61 $BHdataArray['owner'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, "\x00"));
62 $BHheaderoffset += (strlen($BHdataArray['owner']) + 1);
63
64 $BHdataArray['group'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, "\x00"));
65 $BHheaderoffset += (strlen($BHdataArray['group']) + 1);
66
67 $BHdataArray['filelength'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 3));
68 $BHheaderoffset += 3;
69
70 $BHdataArray['access_flags'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 2));
71 $BHheaderoffset += 2;
72
73 $BHdataArray['creation_time'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4));
74 $BHheaderoffset += 4;
75
76 $BHdataArray['modification_time'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4));
77 $BHheaderoffset += 4;
78
79 $BHdataArray['access_time'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4));
80 $BHheaderoffset += 4;
81
82 $ThisFileInfo['szip']['BH'][] = $BHdataArray;
83 }
84 break;
85
86 default:
87 break 2;
88 }
89 }
90
91 return true;
92
93 }

References getid3_lib\BigEndian2Int(), getid3_handler\feof(), getid3_handler\fread(), and getid3_handler\fseek().

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