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
|
// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Core.WindowsInstaller.Unbind
{
using System;
using System.Collections;
using System.Collections.Specialized;
using System.Globalization;
using System.IO;
using WixToolset.Core.Native;
using WixToolset.Data;
using WixToolset.Data.WindowsInstaller;
using WixToolset.Data.WindowsInstaller.Rows;
using WixToolset.Msi;
internal class ExtractCabinetsCommand
{
public ExtractCabinetsCommand(Output output, Database database, string inputFilePath, string exportBasePath, string intermediateFolder)
{
this.Output = output;
this.Database = database;
this.InputFilePath = inputFilePath;
this.ExportBasePath = exportBasePath;
this.IntermediateFolder = intermediateFolder;
}
private Output Output { get; }
private Database Database { get; }
private string InputFilePath { get; }
private string ExportBasePath { get; }
private string IntermediateFolder { get; }
public void Execute()
{
string databaseBasePath = Path.GetDirectoryName(this.InputFilePath);
StringCollection cabinetFiles = new StringCollection();
SortedList embeddedCabinets = new SortedList();
// index all of the cabinet files
if (OutputType.Module == this.Output.Type)
{
embeddedCabinets.Add(0, "MergeModule.CABinet");
}
else if (null != this.Output.Tables["Media"])
{
foreach (MediaRow mediaRow in this.Output.Tables["Media"].Rows)
{
if (null != mediaRow.Cabinet)
{
if (OutputType.Product == this.Output.Type ||
(OutputType.Transform == this.Output.Type && RowOperation.Add == mediaRow.Operation))
{
if (mediaRow.Cabinet.StartsWith("#", StringComparison.Ordinal))
{
embeddedCabinets.Add(mediaRow.DiskId, mediaRow.Cabinet.Substring(1));
}
else
{
cabinetFiles.Add(Path.Combine(databaseBasePath, mediaRow.Cabinet));
}
}
}
}
}
// extract the embedded cabinet files from the database
if (0 < embeddedCabinets.Count)
{
using (View streamsView = this.Database.OpenView("SELECT `Data` FROM `_Streams` WHERE `Name` = ?"))
{
foreach (int diskId in embeddedCabinets.Keys)
{
using (Record record = new Record(1))
{
record.SetString(1, (string)embeddedCabinets[diskId]);
streamsView.Execute(record);
}
using (Record record = streamsView.Fetch())
{
if (null != record)
{
// since the cabinets are stored in case-sensitive streams inside the msi, but the file system is not case-sensitive,
// embedded cabinets must be extracted to a canonical file name (like their diskid) to ensure extraction will always work
string cabinetFile = Path.Combine(this.IntermediateFolder, String.Concat("Media", Path.DirectorySeparatorChar, diskId.ToString(CultureInfo.InvariantCulture), ".cab"));
// ensure the parent directory exists
Directory.CreateDirectory(Path.GetDirectoryName(cabinetFile));
using (FileStream fs = File.Create(cabinetFile))
{
int bytesRead;
byte[] buffer = new byte[512];
while (0 != (bytesRead = record.GetStream(1, buffer, buffer.Length)))
{
fs.Write(buffer, 0, bytesRead);
}
}
cabinetFiles.Add(cabinetFile);
}
else
{
// TODO: warning about missing embedded cabinet
}
}
}
}
}
// extract the cabinet files
if (0 < cabinetFiles.Count)
{
string fileDirectory = Path.Combine(this.ExportBasePath, "File");
// delete the directory and its files to prevent cab extraction due to an existing file
if (Directory.Exists(fileDirectory))
{
Directory.Delete(fileDirectory, true);
}
// ensure the directory exists or extraction will fail
Directory.CreateDirectory(fileDirectory);
foreach (string cabinetFile in cabinetFiles)
{
try
{
var cabinet = new Cabinet(cabinetFile);
cabinet.Extract(fileDirectory);
}
catch (FileNotFoundException)
{
throw new WixException(WixErrors.FileNotFound(new SourceLineNumber(this.InputFilePath), cabinetFile));
}
}
}
}
}
}
|
