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
|
/*
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version
2 of the License, or (at your option) any later version.
*/
#include <QString>
#include <QByteArray>
#include <QFileInfo>
#include <QFile>
#define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1
#include <md5.h>
#include <files.h>
#include <filters.h>
#include <hex.h>
#include "helper.h"
namespace Helper {
const QString mimeType(const QString &path){
QString retval;
magic_t mc = magic_open(MAGIC_MIME_TYPE);
QByteArray name = path.toUtf8();
if(mc){
magic_load(mc, 0);
const char* magic_c = magic_file(mc, name.constData());
retval = QString(magic_c);
magic_close(mc);
}
if(retval.toLower().startsWith("application/octet-stream")){
magic_t mc = magic_open(MAGIC_NONE);
if(mc){
magic_load(mc, 0);
const char* magic_c = magic_file(mc, name.constData());
QString desc(magic_c);
magic_close(mc);
if(desc.toLower().contains("mpeg sequence") || desc.toLower().contains("microsoft asf")){
retval = "video/";
}
}
return retval;
}
}
const QString md5Sum(const QString &path){
QFileInfo info(path);
if(!info.exists() || !info.isFile()){
return QString();
}
using namespace CryptoPP;
Weak::MD5 hash;
std::string res;
QString retval;
if(info.size() < (5 * 1024 * 1024)){
FileSource f(qPrintable(path), true, new HashFilter(hash, new HexEncoder(new StringSink(res))));
retval = QString::fromStdString(res).toLower();
}else{
QFile file(path);
file.open(QIODevice::ReadOnly);
int offset = info.size() / 3;
file.seek(offset);
int numBytes = 512 * 1024;
char *data = new char[numBytes];
int read = file.read(data, numBytes);
if(read != numBytes){
delete [] data;
return QString();
}
StringSource s((byte*)data, numBytes, true, new HashFilter(hash, new HexEncoder(new StringSink(res))));
retval = QString::fromStdString(res).toLower();
delete [] data;
}
return retval;
}
}
|
