PropIDUtils.cpp revision baa3858d3f5d128a5c8466b700098109edcad5f2 
1// PropIDUtils.cpp
2
3#include "StdAfx.h"
4
5#include "Common/IntToString.h"
6
7#include "Windows/FileFind.h"
8#include "Windows/PropVariantConversions.h"
9
10#include "../../PropID.h"
11
12#include "PropIDUtils.h"
13
14using namespace NWindows;
15
16void ConvertUInt32ToHex(UInt32 value, wchar_t *s)
17{
18  for (int i = 0; i < 8; i++)
19  {
20    int t = value & 0xF;
21    value >>= 4;
22    s[7 - i] = (wchar_t)((t < 10) ? (L'0' + t) : (L'A' + (t - 10)));
23  }
24  s[8] = L'\0';
25}
26
27static const char g_WinAttrib[17] = "RHS8DAdNTsrCOnE_";
28/*
290 READONLY
301 HIDDEN
313 SYSTEM
32
334 DIRECTORY
345 ARCHIVE
356 DEVICE
367 NORMAL
378 TEMPORARY
389 SPARSE_FILE
3910 REPARSE_POINT
4011 COMPRESSED
4112 OFFLINE
4213 NOT_CONTENT_INDEXED
4314 ENCRYPTED
44
4516 VIRTUAL
46*/
47
48static const char kPosixTypes[16] = { '0', 'p', 'c', '3', 'd', '5', 'b', '7', '-', '9', 'l', 'B', 's', 'D', 'E', 'F' };
49#define MY_ATTR_CHAR(a, n, c) ((a )& (1 << (n))) ? c : L'-';
50
51UString ConvertPropertyToString(const PROPVARIANT &prop, PROPID propID, bool full)
52{
53  switch(propID)
54  {
55    case kpidCTime:
56    case kpidATime:
57    case kpidMTime:
58    {
59      if (prop.vt != VT_FILETIME)
60        break;
61      FILETIME localFileTime;
62      if ((prop.filetime.dwHighDateTime == 0 &&
63          prop.filetime.dwLowDateTime == 0) ||
64          !::FileTimeToLocalFileTime(&prop.filetime, &localFileTime))
65        return UString();
66      return ConvertFileTimeToString(localFileTime, true, full);
67    }
68    case kpidCRC:
69    {
70      if (prop.vt != VT_UI4)
71        break;
72      wchar_t temp[12];
73      ConvertUInt32ToHex(prop.ulVal, temp);
74      return temp;
75    }
76    case kpidAttrib:
77    {
78      if (prop.vt != VT_UI4)
79        break;
80      UInt32 a = prop.ulVal;
81      wchar_t sz[32];
82      int pos = 0;
83      for (int i = 0; i < 16; i++)
84        if (a & (1 << i) && i != 7)
85          sz[pos++] = g_WinAttrib[i];
86      sz[pos] = '\0';
87      return sz;
88    }
89    case kpidPosixAttrib:
90    {
91      if (prop.vt != VT_UI4)
92        break;
93      UString res;
94      UInt32 a = prop.ulVal;
95      wchar_t temp[16];
96
97      temp[0] = kPosixTypes[(a >> 12) & 0xF];
98      for (int i = 6; i >= 0; i -= 3)
99      {
100        temp[7 - i] = MY_ATTR_CHAR(a, i + 2, L'r');
101        temp[8 - i] = MY_ATTR_CHAR(a, i + 1, L'w');
102        temp[9 - i] = MY_ATTR_CHAR(a, i + 0, L'x');
103      }
104      if ((a & 0x800) != 0) temp[3] = ((a & (1 << 6)) ? 's' : 'S');
105      if ((a & 0x400) != 0) temp[6] = ((a & (1 << 3)) ? 's' : 'S');
106      if ((a & 0x200) != 0) temp[9] = ((a & (1 << 0)) ? 't' : 'T');
107      temp[10] = 0;
108      res = temp;
109
110      a &= ~(UInt32)0xFFFF;
111      if (a != 0)
112      {
113        ConvertUInt32ToHex(a, temp);
114        res = UString(temp) + L' ' + res;
115      }
116      return res;
117    }
118  }
119  return ConvertPropVariantToString(prop);
120}
121