-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathBulkMediaImport.aspx
1049 lines (930 loc) · 48.3 KB
/
BulkMediaImport.aspx
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="Sitecore.Data" %>
<%@ Import Namespace="Sitecore.Data.Items" %>
<%@ Import Namespace="Sitecore.Globalization" %>
<%@ Import Namespace="System" %>
<%@ Import Namespace="System.Collections.Generic" %>
<%@ Import Namespace="System.Linq" %>
<%@ Import Namespace="System.Text" %>
<%@ Import Namespace="System.Web" %>
<%@ Import Namespace="System.Web.UI" %>
<%@ Import Namespace="System.Web.UI.WebControls" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.IO.Compression" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Bulk Media Update Tool</title>
<style>
body {
font-family: verdana, arial, sans-serif;
}
table.table-style-three {
font-family: verdana, arial, sans-serif;
font-size: 11px;
color: #333333;
border-width: 1px;
border-color: #3A3A3A;
border-collapse: collapse;
}
table.table-style-three th {
border-width: 1px;
padding: 8px;
border-style: solid;
border-color: #FFA6A6;
background-color: #D56A6A;
color: #ffffff;
}
table.table-style-three tr:hover td {
cursor: pointer;
}
table.table-style-three tr:nth-child(even) td {
background-color: #F7CFCF;
}
table.table-style-three td {
border-width: 1px;
padding: 8px;
border-style: solid;
border-color: #FFA6A6;
background-color: #ffffff;
}
</style>
<script language="CS" runat="server">
/// <summary>
/// Unique class for compression/decompression file. Represents a Zip file.
/// </summary>
#if NETSTANDARD
/// <summary>
/// Extension method for covering missing Close() method in .Net Standard
/// </summary>
public static class StreamExtension
{
public static void Close(this Stream stream)
{
stream.Dispose();
GC.SuppressFinalize(stream);
}
}
#endif
/// <summary>
/// Unique class for compression/decompression file. Represents a Zip file.
/// </summary>
public class ZipStorer : IDisposable
{
/// <summary>
/// Compression method enumeration
/// </summary>
public enum Compression : ushort
{
/// <summary>Uncompressed storage</summary>
Store = 0,
/// <summary>Deflate compression method</summary>
Deflate = 8
}
/// <summary>
/// Represents an entry in Zip file directory
/// </summary>
public struct ZipFileEntry
{
/// <summary>Compression method</summary>
public Compression Method;
/// <summary>Full path and filename as stored in Zip</summary>
public string FilenameInZip;
/// <summary>Original file size</summary>
public uint FileSize;
/// <summary>Compressed file size</summary>
public uint CompressedSize;
/// <summary>Offset of header information inside Zip storage</summary>
public uint HeaderOffset;
/// <summary>Offset of file inside Zip storage</summary>
public uint FileOffset;
/// <summary>Size of header information</summary>
public uint HeaderSize;
/// <summary>32-bit checksum of entire file</summary>
public uint Crc32;
/// <summary>Last modification time of file</summary>
public DateTime ModifyTime;
/// <summary>User comment for file</summary>
public string Comment;
/// <summary>True if UTF8 encoding for filename and comments, false if default (CP 437)</summary>
public bool EncodeUTF8;
/// <summary>Overriden method</summary>
/// <returns>Filename in Zip</returns>
public override string ToString()
{
return this.FilenameInZip;
}
}
#region Public fields
/// <summary>True if UTF8 encoding for filename and comments, false if default (CP 437)</summary>
public bool EncodeUTF8 = false;
/// <summary>Force deflate algotithm even if it inflates the stored file. Off by default.</summary>
public bool ForceDeflating = false;
#endregion
#region Private fields
// List of files to store
private List<ZipFileEntry> Files = new List<ZipFileEntry>();
// Filename of storage file
private string FileName;
// Stream object of storage file
private Stream ZipFileStream;
// General comment
private string Comment = "";
// Central dir image
private byte[] CentralDirImage = null;
// Existing files in zip
private ushort ExistingFiles = 0;
// File access for Open method
private FileAccess Access;
// leave the stream open after the ZipStorer object is disposed
private bool leaveOpen;
// Static CRC32 Table
private static UInt32[] CrcTable = null;
// Default filename encoder
private static Encoding DefaultEncoding = Encoding.GetEncoding(437);
#endregion
#region Public methods
// Static constructor. Just invoked once in order to create the CRC32 lookup table.
static ZipStorer()
{
// Generate CRC32 table
CrcTable = new UInt32[256];
for (int i = 0; i < CrcTable.Length; i++)
{
UInt32 c = (UInt32)i;
for (int j = 0; j < 8; j++)
{
if ((c & 1) != 0)
c = 3988292384 ^ (c >> 1);
else
c >>= 1;
}
CrcTable[i] = c;
}
}
/// <summary>
/// Method to create a new storage file
/// </summary>
/// <param name="_filename">Full path of Zip file to create</param>
/// <param name="_comment">General comment for Zip file</param>
/// <returns>A valid ZipStorer object</returns>
public static ZipStorer Create(string _filename, string _comment)
{
Stream stream = new FileStream(_filename, FileMode.Create, FileAccess.ReadWrite);
ZipStorer zip = Create(stream, _comment);
zip.Comment = _comment;
zip.FileName = _filename;
return zip;
}
/// <summary>
/// Method to create a new zip storage in a stream
/// </summary>
/// <param name="_stream"></param>
/// <param name="_comment"></param>
/// <param name="_leaveOpen">true to leave the stream open after the ZipStorer object is disposed; otherwise, false (default).</param>
/// <returns>A valid ZipStorer object</returns>
public static ZipStorer Create(Stream _stream, string _comment, bool _leaveOpen = false)
{
ZipStorer zip = new ZipStorer();
zip.Comment = _comment;
zip.ZipFileStream = _stream;
zip.Access = FileAccess.Write;
zip.leaveOpen = _leaveOpen;
return zip;
}
/// <summary>
/// Method to open an existing storage file
/// </summary>
/// <param name="_filename">Full path of Zip file to open</param>
/// <param name="_access">File access mode as used in FileStream constructor</param>
/// <returns>A valid ZipStorer object</returns>
public static ZipStorer Open(string _filename, FileAccess _access)
{
Stream stream = (Stream)new FileStream(_filename, FileMode.Open, _access == FileAccess.Read ? FileAccess.Read : FileAccess.ReadWrite);
ZipStorer zip = Open(stream, _access);
zip.FileName = _filename;
return zip;
}
/// <summary>
/// Method to open an existing storage from stream
/// </summary>
/// <param name="_stream">Already opened stream with zip contents</param>
/// <param name="_access">File access mode for stream operations</param>
/// <param name="_leaveOpen">true to leave the stream open after the ZipStorer object is disposed; otherwise, false (default).</param>
/// <returns>A valid ZipStorer object</returns>
public static ZipStorer Open(Stream _stream, FileAccess _access, bool _leaveOpen = false)
{
if (!_stream.CanSeek && _access != FileAccess.Read)
throw new InvalidOperationException("Stream cannot seek");
ZipStorer zip = new ZipStorer();
//zip.FileName = _filename;
zip.ZipFileStream = _stream;
zip.Access = _access;
zip.leaveOpen = _leaveOpen;
if (zip.ReadFileInfo())
return zip;
throw new System.IO.InvalidDataException();
}
/// <summary>
/// Add full contents of a file into the Zip storage
/// </summary>
/// <param name="_method">Compression method</param>
/// <param name="_pathname">Full path of file to add to Zip storage</param>
/// <param name="_filenameInZip">Filename and path as desired in Zip directory</param>
/// <param name="_comment">Comment for stored file</param>
public void AddFile(Compression _method, string _pathname, string _filenameInZip, string _comment)
{
if (Access == FileAccess.Read)
throw new InvalidOperationException("Writing is not alowed");
using (var stream = new FileStream(_pathname, FileMode.Open, FileAccess.Read))
{
AddStream(_method, _filenameInZip, stream, File.GetLastWriteTime(_pathname), _comment);
}
}
/// <summary>
/// Add full contents of a stream into the Zip storage
/// </summary>
/// <param name="_method">Compression method</param>
/// <param name="_filenameInZip">Filename and path as desired in Zip directory</param>
/// <param name="_source">Stream object containing the data to store in Zip</param>
/// <param name="_modTime">Modification time of the data to store</param>
/// <param name="_comment">Comment for stored file</param>
public void AddStream(Compression _method, string _filenameInZip, Stream _source, DateTime _modTime, string _comment)
{
if (Access == FileAccess.Read)
throw new InvalidOperationException("Writing is not alowed");
// Prepare the fileinfo
ZipFileEntry zfe = new ZipFileEntry();
zfe.Method = _method;
zfe.EncodeUTF8 = this.EncodeUTF8;
zfe.FilenameInZip = NormalizedFilename(_filenameInZip);
zfe.Comment = _comment ?? "";
// Even though we write the header now, it will have to be rewritten, since we don't know compressed size or crc.
zfe.Crc32 = 0; // to be updated later
zfe.HeaderOffset = (uint)this.ZipFileStream.Position; // offset within file of the start of this local record
zfe.ModifyTime = _modTime;
// Write local header
WriteLocalHeader(ref zfe);
zfe.FileOffset = (uint)this.ZipFileStream.Position;
// Write file to zip (store)
Store(ref zfe, _source);
_source.Close();
this.UpdateCrcAndSizes(ref zfe);
Files.Add(zfe);
}
/// <summary>
/// Updates central directory (if pertinent) and close the Zip storage
/// </summary>
/// <remarks>This is a required step, unless automatic dispose is used</remarks>
public void Close()
{
if (this.Access != FileAccess.Read)
{
uint centralOffset = (uint)this.ZipFileStream.Position;
uint centralSize = 0;
if (this.CentralDirImage != null)
this.ZipFileStream.Write(CentralDirImage, 0, CentralDirImage.Length);
for (int i = 0; i < Files.Count; i++)
{
long pos = this.ZipFileStream.Position;
this.WriteCentralDirRecord(Files[i]);
centralSize += (uint)(this.ZipFileStream.Position - pos);
}
if (this.CentralDirImage != null)
this.WriteEndRecord(centralSize + (uint)CentralDirImage.Length, centralOffset);
else
this.WriteEndRecord(centralSize, centralOffset);
}
if (this.ZipFileStream != null && !this.leaveOpen)
{
this.ZipFileStream.Flush();
this.ZipFileStream.Dispose();
this.ZipFileStream = null;
}
}
/// <summary>
/// Read all the file records in the central directory
/// </summary>
/// <returns>List of all entries in directory</returns>
public List<ZipFileEntry> ReadCentralDir()
{
if (this.CentralDirImage == null)
throw new InvalidOperationException("Central directory currently does not exist");
List<ZipFileEntry> result = new List<ZipFileEntry>();
for (int pointer = 0; pointer < this.CentralDirImage.Length;)
{
uint signature = BitConverter.ToUInt32(CentralDirImage, pointer);
if (signature != 0x02014b50)
break;
bool encodeUTF8 = (BitConverter.ToUInt16(CentralDirImage, pointer + 8) & 0x0800) != 0;
ushort method = BitConverter.ToUInt16(CentralDirImage, pointer + 10);
uint modifyTime = BitConverter.ToUInt32(CentralDirImage, pointer + 12);
uint crc32 = BitConverter.ToUInt32(CentralDirImage, pointer + 16);
uint comprSize = BitConverter.ToUInt32(CentralDirImage, pointer + 20);
uint fileSize = BitConverter.ToUInt32(CentralDirImage, pointer + 24);
ushort filenameSize = BitConverter.ToUInt16(CentralDirImage, pointer + 28);
ushort extraSize = BitConverter.ToUInt16(CentralDirImage, pointer + 30);
ushort commentSize = BitConverter.ToUInt16(CentralDirImage, pointer + 32);
uint headerOffset = BitConverter.ToUInt32(CentralDirImage, pointer + 42);
uint headerSize = (uint)(46 + filenameSize + extraSize + commentSize);
Encoding encoder = encodeUTF8 ? Encoding.UTF8 : DefaultEncoding;
ZipFileEntry zfe = new ZipFileEntry();
zfe.Method = (Compression)method;
zfe.FilenameInZip = encoder.GetString(CentralDirImage, pointer + 46, filenameSize);
zfe.FileOffset = GetFileOffset(headerOffset);
zfe.FileSize = fileSize;
zfe.CompressedSize = comprSize;
zfe.HeaderOffset = headerOffset;
zfe.HeaderSize = headerSize;
zfe.Crc32 = crc32;
zfe.ModifyTime = DosTimeToDateTime(modifyTime) ?? DateTime.Now;
if (commentSize > 0)
zfe.Comment = encoder.GetString(CentralDirImage, pointer + 46 + filenameSize + extraSize, commentSize);
result.Add(zfe);
pointer += (46 + filenameSize + extraSize + commentSize);
}
return result;
}
/// <summary>
/// Copy the contents of a stored file into a physical file
/// </summary>
/// <param name="_zfe">Entry information of file to extract</param>
/// <param name="_filename">Name of file to store uncompressed data</param>
/// <returns>True if success, false if not.</returns>
/// <remarks>Unique compression methods are Store and Deflate</remarks>
public bool ExtractFile(ZipFileEntry _zfe, string _filename)
{
// Make sure the parent directory exist
string path = Path.GetDirectoryName(_filename);
if (!Directory.Exists(path))
Directory.CreateDirectory(path);
// Check it is directory. If so, do nothing
if (Directory.Exists(_filename))
return true;
bool result;
using (var output = new FileStream(_filename, FileMode.Create, FileAccess.Write))
{
result = ExtractFile(_zfe, output);
}
if (result)
{
File.SetCreationTime(_filename, _zfe.ModifyTime);
File.SetLastWriteTime(_filename, _zfe.ModifyTime);
}
return result;
}
/// <summary>
/// Copy the contents of a stored file into an opened stream
/// </summary>
/// <param name="_zfe">Entry information of file to extract</param>
/// <param name="_stream">Stream to store the uncompressed data</param>
/// <returns>True if success, false if not.</returns>
/// <remarks>Unique compression methods are Store and Deflate</remarks>
public bool ExtractFile(ZipFileEntry _zfe, Stream _stream)
{
if (!_stream.CanWrite)
throw new InvalidOperationException("Stream cannot be written");
// check signature
byte[] signature = new byte[4];
this.ZipFileStream.Seek(_zfe.HeaderOffset, SeekOrigin.Begin);
this.ZipFileStream.Read(signature, 0, 4);
if (BitConverter.ToUInt32(signature, 0) != 0x04034b50)
return false;
// Select input stream for inflating or just reading
Stream inStream;
if (_zfe.Method == Compression.Store)
inStream = this.ZipFileStream;
else if (_zfe.Method == Compression.Deflate)
inStream = new DeflateStream(this.ZipFileStream, CompressionMode.Decompress, true);
else
return false;
// Buffered copy
byte[] buffer = new byte[16384];
this.ZipFileStream.Seek(_zfe.FileOffset, SeekOrigin.Begin);
uint bytesPending = _zfe.FileSize;
while (bytesPending > 0)
{
int bytesRead = inStream.Read(buffer, 0, (int)Math.Min(bytesPending, buffer.Length));
_stream.Write(buffer, 0, bytesRead);
bytesPending -= (uint)bytesRead;
}
_stream.Flush();
if (_zfe.Method == Compression.Deflate)
inStream.Dispose();
return true;
}
#if NET45
/// <summary>
/// Copy the contents of a stored file into an opened stream
/// </summary>
/// <param name="_zfe">Entry information of file to extract</param>
/// <param name="_stream">Stream to store the uncompressed data</param>
/// <returns>True if success, false if not.</returns>
/// <remarks>Unique compression methods are Store and Deflate</remarks>
public async Task<bool> ExtractFileAsync(ZipFileEntry _zfe, Stream _stream)
{
if (!_stream.CanWrite)
throw new InvalidOperationException("Stream cannot be written");
// check signature
byte[] signature = new byte[4];
this.ZipFileStream.Seek(_zfe.HeaderOffset, SeekOrigin.Begin);
await this.ZipFileStream.ReadAsync(signature, 0, 4).ConfigureAwait(false);
if (BitConverter.ToUInt32(signature, 0) != 0x04034b50)
return false;
// Select input stream for inflating or just reading
Stream inStream;
if (_zfe.Method == Compression.Store)
inStream = this.ZipFileStream;
else if (_zfe.Method == Compression.Deflate)
inStream = new DeflateStream(this.ZipFileStream, CompressionMode.Decompress, true);
else
return false;
// Buffered copy
byte[] buffer = new byte[16384];
this.ZipFileStream.Seek(_zfe.FileOffset, SeekOrigin.Begin);
uint bytesPending = _zfe.FileSize;
while (bytesPending > 0)
{
int bytesRead = await inStream.ReadAsync(buffer, 0, (int)Math.Min(bytesPending, buffer.Length)).ConfigureAwait(false);
await _stream.WriteAsync(buffer, 0, bytesRead).ConfigureAwait(false);
bytesPending -= (uint)bytesRead;
}
_stream.Flush();
if (_zfe.Method == Compression.Deflate)
inStream.Dispose();
return true;
}
#endif
/// <summary>
/// Copy the contents of a stored file into a byte array
/// </summary>
/// <param name="_zfe">Entry information of file to extract</param>
/// <param name="_file">Byte array with uncompressed data</param>
/// <returns>True if success, false if not.</returns>
/// <remarks>Unique compression methods are Store and Deflate</remarks>
public bool ExtractFile(ZipFileEntry _zfe, out byte[] _file)
{
using (MemoryStream ms = new MemoryStream())
{
if (ExtractFile(_zfe, ms))
{
_file = ms.ToArray();
return true;
}
else
{
_file = null;
return false;
}
}
}
/// <summary>
/// Removes one of many files in storage. It creates a new Zip file.
/// </summary>
/// <param name="_zip">Reference to the current Zip object</param>
/// <param name="_zfes">List of Entries to remove from storage</param>
/// <returns>True if success, false if not</returns>
/// <remarks>This method only works for storage of type FileStream</remarks>
public static bool RemoveEntries(ref ZipStorer _zip, List<ZipFileEntry> _zfes)
{
if (!(_zip.ZipFileStream is FileStream))
throw new InvalidOperationException("RemoveEntries is allowed just over streams of type FileStream");
//Get full list of entries
var fullList = _zip.ReadCentralDir();
//In order to delete we need to create a copy of the zip file excluding the selected items
var tempZipName = Path.GetTempFileName();
var tempEntryName = Path.GetTempFileName();
try
{
var tempZip = ZipStorer.Create(tempZipName, string.Empty);
foreach (ZipFileEntry zfe in fullList)
{
if (!_zfes.Contains(zfe))
{
if (_zip.ExtractFile(zfe, tempEntryName))
{
tempZip.AddFile(zfe.Method, tempEntryName, zfe.FilenameInZip, zfe.Comment);
}
}
}
_zip.Close();
tempZip.Close();
File.Delete(_zip.FileName);
File.Move(tempZipName, _zip.FileName);
_zip = ZipStorer.Open(_zip.FileName, _zip.Access);
}
catch
{
return false;
}
finally
{
if (File.Exists(tempZipName))
File.Delete(tempZipName);
if (File.Exists(tempEntryName))
File.Delete(tempEntryName);
}
return true;
}
#endregion
#region Private methods
// Calculate the file offset by reading the corresponding local header
private uint GetFileOffset(uint _headerOffset)
{
byte[] buffer = new byte[2];
this.ZipFileStream.Seek(_headerOffset + 26, SeekOrigin.Begin);
this.ZipFileStream.Read(buffer, 0, 2);
ushort filenameSize = BitConverter.ToUInt16(buffer, 0);
this.ZipFileStream.Read(buffer, 0, 2);
ushort extraSize = BitConverter.ToUInt16(buffer, 0);
return (uint)(30 + filenameSize + extraSize + _headerOffset);
}
/* Local file header:
local file header signature 4 bytes (0x04034b50)
version needed to extract 2 bytes
general purpose bit flag 2 bytes
compression method 2 bytes
last mod file time 2 bytes
last mod file date 2 bytes
crc-32 4 bytes
compressed size 4 bytes
uncompressed size 4 bytes
filename length 2 bytes
extra field length 2 bytes
filename (variable size)
extra field (variable size)
*/
private void WriteLocalHeader(ref ZipFileEntry _zfe)
{
long pos = this.ZipFileStream.Position;
Encoding encoder = _zfe.EncodeUTF8 ? Encoding.UTF8 : DefaultEncoding;
byte[] encodedFilename = encoder.GetBytes(_zfe.FilenameInZip);
this.ZipFileStream.Write(new byte[] { 80, 75, 3, 4, 20, 0 }, 0, 6); // No extra header
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)(_zfe.EncodeUTF8 ? 0x0800 : 0)), 0, 2); // filename and comment encoding
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)_zfe.Method), 0, 2); // zipping method
this.ZipFileStream.Write(BitConverter.GetBytes(DateTimeToDosTime(_zfe.ModifyTime)), 0, 4); // zipping date and time
this.ZipFileStream.Write(new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0, 12); // unused CRC, un/compressed size, updated later
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)encodedFilename.Length), 0, 2); // filename length
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)0), 0, 2); // extra length
this.ZipFileStream.Write(encodedFilename, 0, encodedFilename.Length);
_zfe.HeaderSize = (uint)(this.ZipFileStream.Position - pos);
}
/* Central directory's File header:
central file header signature 4 bytes (0x02014b50)
version made by 2 bytes
version needed to extract 2 bytes
general purpose bit flag 2 bytes
compression method 2 bytes
last mod file time 2 bytes
last mod file date 2 bytes
crc-32 4 bytes
compressed size 4 bytes
uncompressed size 4 bytes
filename length 2 bytes
extra field length 2 bytes
file comment length 2 bytes
disk number start 2 bytes
internal file attributes 2 bytes
external file attributes 4 bytes
relative offset of local header 4 bytes
filename (variable size)
extra field (variable size)
file comment (variable size)
*/
private void WriteCentralDirRecord(ZipFileEntry _zfe)
{
Encoding encoder = _zfe.EncodeUTF8 ? Encoding.UTF8 : DefaultEncoding;
byte[] encodedFilename = encoder.GetBytes(_zfe.FilenameInZip);
byte[] encodedComment = encoder.GetBytes(_zfe.Comment);
this.ZipFileStream.Write(new byte[] { 80, 75, 1, 2, 23, 0xB, 20, 0 }, 0, 8);
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)(_zfe.EncodeUTF8 ? 0x0800 : 0)), 0, 2); // filename and comment encoding
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)_zfe.Method), 0, 2); // zipping method
this.ZipFileStream.Write(BitConverter.GetBytes(DateTimeToDosTime(_zfe.ModifyTime)), 0, 4); // zipping date and time
this.ZipFileStream.Write(BitConverter.GetBytes(_zfe.Crc32), 0, 4); // file CRC
this.ZipFileStream.Write(BitConverter.GetBytes(_zfe.CompressedSize), 0, 4); // compressed file size
this.ZipFileStream.Write(BitConverter.GetBytes(_zfe.FileSize), 0, 4); // uncompressed file size
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)encodedFilename.Length), 0, 2); // Filename in zip
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)0), 0, 2); // extra length
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)encodedComment.Length), 0, 2);
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)0), 0, 2); // disk=0
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)0), 0, 2); // file type: binary
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)0), 0, 2); // Internal file attributes
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)0x8100), 0, 2); // External file attributes (normal/readable)
this.ZipFileStream.Write(BitConverter.GetBytes(_zfe.HeaderOffset), 0, 4); // Offset of header
this.ZipFileStream.Write(encodedFilename, 0, encodedFilename.Length);
this.ZipFileStream.Write(encodedComment, 0, encodedComment.Length);
}
/* End of central dir record:
end of central dir signature 4 bytes (0x06054b50)
number of this disk 2 bytes
number of the disk with the
start of the central directory 2 bytes
total number of entries in
the central dir on this disk 2 bytes
total number of entries in
the central dir 2 bytes
size of the central directory 4 bytes
offset of start of central
directory with respect to
the starting disk number 4 bytes
zipfile comment length 2 bytes
zipfile comment (variable size)
*/
private void WriteEndRecord(uint _size, uint _offset)
{
Encoding encoder = this.EncodeUTF8 ? Encoding.UTF8 : DefaultEncoding;
byte[] encodedComment = encoder.GetBytes(this.Comment);
this.ZipFileStream.Write(new byte[] { 80, 75, 5, 6, 0, 0, 0, 0 }, 0, 8);
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)Files.Count + ExistingFiles), 0, 2);
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)Files.Count + ExistingFiles), 0, 2);
this.ZipFileStream.Write(BitConverter.GetBytes(_size), 0, 4);
this.ZipFileStream.Write(BitConverter.GetBytes(_offset), 0, 4);
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)encodedComment.Length), 0, 2);
this.ZipFileStream.Write(encodedComment, 0, encodedComment.Length);
}
// Copies all source file into storage file
private void Store(ref ZipFileEntry _zfe, Stream _source)
{
byte[] buffer = new byte[16384];
int bytesRead;
uint totalRead = 0;
Stream outStream;
long posStart = this.ZipFileStream.Position;
long sourceStart = _source.CanSeek ? _source.Position : 0;
if (_zfe.Method == Compression.Store)
outStream = this.ZipFileStream;
else
outStream = new DeflateStream(this.ZipFileStream, CompressionMode.Compress, true);
_zfe.Crc32 = 0 ^ 0xffffffff;
do
{
bytesRead = _source.Read(buffer, 0, buffer.Length);
totalRead += (uint)bytesRead;
if (bytesRead > 0)
{
outStream.Write(buffer, 0, bytesRead);
for (uint i = 0; i < bytesRead; i++)
{
_zfe.Crc32 = ZipStorer.CrcTable[(_zfe.Crc32 ^ buffer[i]) & 0xFF] ^ (_zfe.Crc32 >> 8);
}
}
} while (bytesRead > 0);
outStream.Flush();
if (_zfe.Method == Compression.Deflate)
outStream.Dispose();
_zfe.Crc32 ^= 0xffffffff;
_zfe.FileSize = totalRead;
_zfe.CompressedSize = (uint)(this.ZipFileStream.Position - posStart);
// Verify for real compression
if (_zfe.Method == Compression.Deflate && !this.ForceDeflating && _source.CanSeek && _zfe.CompressedSize > _zfe.FileSize)
{
// Start operation again with Store algorithm
_zfe.Method = Compression.Store;
this.ZipFileStream.Position = posStart;
this.ZipFileStream.SetLength(posStart);
_source.Position = sourceStart;
this.Store(ref _zfe, _source);
}
}
/* DOS Date and time:
MS-DOS date. The date is a packed value with the following format. Bits Description
0-4 Day of the month (131)
5-8 Month (1 = January, 2 = February, and so on)
9-15 Year offset from 1980 (add 1980 to get actual year)
MS-DOS time. The time is a packed value with the following format. Bits Description
0-4 Second divided by 2
5-10 Minute (059)
11-15 Hour (023 on a 24-hour clock)
*/
private uint DateTimeToDosTime(DateTime _dt)
{
return (uint)(
(_dt.Second / 2) | (_dt.Minute << 5) | (_dt.Hour << 11) |
(_dt.Day << 16) | (_dt.Month << 21) | ((_dt.Year - 1980) << 25));
}
private DateTime? DosTimeToDateTime(uint _dt)
{
int year = (int)(_dt >> 25) + 1980;
int month = (int)(_dt >> 21) & 15;
int day = (int)(_dt >> 16) & 31;
int hours = (int)(_dt >> 11) & 31;
int minutes = (int)(_dt >> 5) & 63;
int seconds = (int)(_dt & 31) * 2;
if (month == 0 || day == 0)
return null;
return new DateTime(year, month, day, hours, minutes, seconds);
}
/* CRC32 algorithm
The 'magic number' for the CRC is 0xdebb20e3.
The proper CRC pre and post conditioning is used, meaning that the CRC register is
pre-conditioned with all ones (a starting value of 0xffffffff) and the value is post-conditioned by
taking the one's complement of the CRC residual.
If bit 3 of the general purpose flag is set, this field is set to zero in the local header and the correct
value is put in the data descriptor and in the central directory.
*/
private void UpdateCrcAndSizes(ref ZipFileEntry _zfe)
{
long lastPos = this.ZipFileStream.Position; // remember position
this.ZipFileStream.Position = _zfe.HeaderOffset + 8;
this.ZipFileStream.Write(BitConverter.GetBytes((ushort)_zfe.Method), 0, 2); // zipping method
this.ZipFileStream.Position = _zfe.HeaderOffset + 14;
this.ZipFileStream.Write(BitConverter.GetBytes(_zfe.Crc32), 0, 4); // Update CRC
this.ZipFileStream.Write(BitConverter.GetBytes(_zfe.CompressedSize), 0, 4); // Compressed size
this.ZipFileStream.Write(BitConverter.GetBytes(_zfe.FileSize), 0, 4); // Uncompressed size
this.ZipFileStream.Position = lastPos; // restore position
}
// Replaces backslashes with slashes to store in zip header
private string NormalizedFilename(string _filename)
{
string filename = _filename.Replace('\\', '/');
int pos = filename.IndexOf(':');
if (pos >= 0)
filename = filename.Remove(0, pos + 1);
return filename.Trim('/');
}
// Reads the end-of-central-directory record
private bool ReadFileInfo()
{
if (this.ZipFileStream.Length < 22)
return false;
try
{
this.ZipFileStream.Seek(-17, SeekOrigin.End);
BinaryReader br = new BinaryReader(this.ZipFileStream);
do
{
this.ZipFileStream.Seek(-5, SeekOrigin.Current);
UInt32 sig = br.ReadUInt32();
if (sig == 0x06054b50)
{
this.ZipFileStream.Seek(6, SeekOrigin.Current);
UInt16 entries = br.ReadUInt16();
Int32 centralSize = br.ReadInt32();
UInt32 centralDirOffset = br.ReadUInt32();
UInt16 commentSize = br.ReadUInt16();
// check if comment field is the very last data in file
if (this.ZipFileStream.Position + commentSize != this.ZipFileStream.Length)
return false;
// Copy entire central directory to a memory buffer
this.ExistingFiles = entries;
this.CentralDirImage = new byte[centralSize];
this.ZipFileStream.Seek(centralDirOffset, SeekOrigin.Begin);
this.ZipFileStream.Read(this.CentralDirImage, 0, centralSize);
// Leave the pointer at the begining of central dir, to append new files
this.ZipFileStream.Seek(centralDirOffset, SeekOrigin.Begin);
return true;
}
} while (this.ZipFileStream.Position > 0);
}
catch { }
return false;
}
#endregion
#region IDisposable Members
/// <summary>
/// Closes the Zip file stream
/// </summary>
public void Dispose()
{
this.Close();
}
#endregion
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
if (Sitecore.Context.User.IsAuthenticated == false)
{
Response.Redirect("login.aspx?returnUrl=bulkmediaimport.aspx");
}
}
protected void btnPublish_Click(object sender, EventArgs e)
{
int count = 0;
StringBuilder sb = new StringBuilder();
sb.Append("Summary:").Append("<br/>");
if (uploadedFile.HasFile)
{
string strDB = drpDB.SelectedItem.Value;
Database db = null;
string spath = Server.MapPath("~/temp");
if (!string.IsNullOrEmpty(txtMediaParentPath.Text))
{
// Make sure we can connect to the Sitecore db
db = Database.GetDatabase(strDB);
if (db != null)
{
// Get the parent media folder from database
var parentMediaFolderItem = db.GetItem(txtMediaParentPath.Text);
if (parentMediaFolderItem != null && parentMediaFolderItem.HasChildren)
{
try
{
ZipStorer zip = ZipStorer.Open(uploadedFile.PostedFile.InputStream, FileAccess.ReadWrite);
// Read the central directory collection
List<ZipStorer.ZipFileEntry> dir = zip.ReadCentralDir();
// Look for the desired file
foreach (ZipStorer.ZipFileEntry entry in dir)
{
try
{
var _filename = spath + "\\bulkmedia\\" + entry.FilenameInZip;
bool success = zip.ExtractFile(entry, _filename);
if (success)
{
var nameToMatchMedia = System.IO.Path.GetFileNameWithoutExtension(_filename);
var imageItem = parentMediaFolderItem.Children.Where(i => i.Name == nameToMatchMedia).FirstOrDefault();
if (imageItem != null)
{
Sitecore.Resources.Media.Media imageMedia = Sitecore.Resources.Media.MediaManager.GetMedia((MediaItem)imageItem);
if (imageMedia != null)
{
var extension = _filename.Split('.')[1];
try
{
using (var output = new FileStream(_filename, System.IO.FileMode.Open))
{
imageMedia.SetStream(output, extension);
}
}
catch (Exception ex)
{
sb.Append(ex.Message).Append("<br />");
}
}
}
}
}
catch (Exception ex)
{
sb.Append(ex.Message);
}
//var lastImageName = System.IO.Path.GetFileNameWithoutExtension(entry.FilenameInZip);
//var imageItem = parentMediaFolderItem.Children.Where(i => i.Name == lastImageName).FirstOrDefault();
//if (imageItem != null)
//{
// Sitecore.Resources.Media.Media imageMedia = Sitecore.Resources.Media.MediaManager.GetMedia((MediaItem)imageItem);
// if (imageMedia != null)
// {
// // imageMedia.SetStream(entry., extension);
// }
//}
}
}
catch (Exception ex)
{
sb.Append(ex.StackTrace).Append("<br />");
}
//zip.Close();
}
}
}
}
else
{
sb.Append("Please select a zip file:").Append("<br/>");