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
|
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: cdrom.cc,v 1.20.2.1 2004/01/16 18:58:50 mdz Exp $
/* ######################################################################
CDROM URI method for APT
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
#include <apt-pkg/acquire-method.h>
#include <apt-pkg/cdrom.h>
#include <apt-pkg/cdromutl.h>
#include <apt-pkg/error.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/hashes.h>
#include <sys/stat.h>
#include <unistd.h>
#include <dlfcn.h>
#include <iostream>
#include <apti18n.h>
/*}}}*/
using namespace std;
class CDROMMethod : public pkgAcqMethod
{
bool DatabaseLoaded;
::Configuration Database;
string CurrentID;
string CDROM;
bool MountedByApt;
bool IsCorrectCD(URI want, string MountPath);
virtual bool Fetch(FetchItem *Itm);
string GetID(string Name);
virtual void Exit();
public:
CDROMMethod();
};
// CDROMMethod::CDROMethod - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
CDROMMethod::CDROMMethod() : pkgAcqMethod("1.0",SingleInstance | LocalOnly |
SendConfig | NeedsCleanup |
Removable),
DatabaseLoaded(false),
MountedByApt(false)
{
};
/*}}}*/
// CDROMMethod::Exit - Unmount the disc if necessary /*{{{*/
// ---------------------------------------------------------------------
/* */
void CDROMMethod::Exit()
{
if (MountedByApt == true)
UnmountCdrom(CDROM);
}
/*}}}*/
// CDROMMethod::GetID - Search the database for a matching string /*{{{*/
// ---------------------------------------------------------------------
/* */
string CDROMMethod::GetID(string Name)
{
// Search for an ID
const Configuration::Item *Top = Database.Tree("CD");
if (Top != 0)
Top = Top->Child;
for (; Top != 0;)
{
if (Top->Value == Name)
return Top->Tag;
Top = Top->Next;
}
return string();
}
/*}}}*/
// CDROMMethod::IsCorrectCD /*{{{*/
// ---------------------------------------------------------------------
/* */
bool CDROMMethod::IsCorrectCD(URI want, string MountPath)
{
bool Debug = _config->FindB("Debug::Acquire::cdrom",false);
string NewID;
for (unsigned int Version = 2; Version != 0; Version--)
{
if (IdentCdrom(MountPath,NewID,Version) == false)
return false;
if (Debug == true)
clog << "ID " << Version << " " << NewID << endl;
// A hit
if (Database.Find("CD::" + NewID) == want.Host)
return true;
}
return false;
}
/*}}}*/
// CDROMMethod::Fetch - Fetch a file /*{{{*/
// ---------------------------------------------------------------------
/* */
bool CDROMMethod::Fetch(FetchItem *Itm)
{
URI Get = Itm->Uri;
string File = Get.Path;
FetchResult Res;
bool Debug = _config->FindB("Debug::Acquire::cdrom",false);
/* All IMS queries are returned as a hit, CDROMs are readonly so
time stamps never change */
if (Itm->LastModified != 0)
{
Res.LastModified = Itm->LastModified;
Res.IMSHit = true;
Res.Filename = Itm->DestFile;
URIDone(Res);
return true;
}
// Load the database
if (DatabaseLoaded == false)
{
// Read the database
string DFile = _config->FindFile("Dir::State::cdroms");
if (FileExists(DFile) == true)
{
if (ReadConfigFile(Database,DFile) == false)
return _error->Error(_("Unable to read the cdrom database %s"),
DFile.c_str());
}
DatabaseLoaded = true;
}
// All non IMS queries for package files fail.
if (Itm->IndexFile == true || GetID(Get.Host).empty() == true)
{
Fail(_("Please use apt-cdrom to make this CD-ROM recognized by APT."
" apt-get update cannot be used to add new CD-ROMs"));
return true;
}
// We already have a CD inserted, but it is the wrong one
if (CurrentID.empty() == false && Database.Find("CD::" + CurrentID) != Get.Host)
{
Fail(_("Wrong CD-ROM"),true);
return true;
}
CDROM = _config->FindDir("Acquire::cdrom::mount","/cdrom/");
// auto-detect mode
if (CDROM == "apt-udev-auto/")
{
pkgUdevCdromDevices udev;
if(udev.Dlopen())
{
vector<struct CdromDevice> v = udev.Scan();
for (unsigned int i=0; i < v.size(); i++)
{
if (!v[i].Mounted)
{
if (!FileExists("/media/apt"))
mkdir("/media/apt", 0755);
if(MountCdrom("/media/apt", v[i].DeviceName))
{
if (IsCorrectCD(Get, "/media/apt"))
{
MountedByApt = true;
CDROM = "/media/apt";
break;
} else {
UnmountCdrom("/media/apt");
}
}
} else {
if (IsCorrectCD(Get, v[i].MountPath))
{
CDROM = v[i].MountPath;
break;
}
}
}
}
}
if (CDROM[0] == '.')
CDROM= SafeGetCWD() + '/' + CDROM;
string NewID;
while (CurrentID.empty() == true)
{
bool Hit = false;
if(!IsMounted(CDROM))
MountedByApt = MountCdrom(CDROM);
if (IsCorrectCD(Get, CDROM))
break;
// I suppose this should prompt somehow?
if (_config->FindB("APT::CDROM::NoMount",false) == false &&
UnmountCdrom(CDROM) == false)
return _error->Error(_("Unable to unmount the CD-ROM in %s, it may still be in use."),
CDROM.c_str());
if (MediaFail(Get.Host,CDROM) == false)
{
CurrentID = "FAIL";
return _error->Error(_("Disk not found."));
}
}
// Found a CD
Res.Filename = CDROM + File;
struct stat Buf;
if (stat(Res.Filename.c_str(),&Buf) != 0)
return _error->Error(_("File not found"));
if (NewID.empty() == false)
CurrentID = NewID;
Res.LastModified = Buf.st_mtime;
Res.Size = Buf.st_size;
Hashes Hash;
FileFd Fd(Res.Filename, FileFd::ReadOnly);
Hash.AddFD(Fd.Fd(), Fd.Size());
Res.TakeHashes(Hash);
URIDone(Res);
return true;
}
/*}}}*/
int main()
{
setlocale(LC_ALL, "");
CDROMMethod Mth;
return Mth.Run();
}
|
