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
|
#
# Author:: Bryan McLellan <btm@loftninjas.org>
# Copyright:: Copyright (c) 2014 Chef Software, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'chef/exceptions'
require 'chef/win32/api'
require 'chef/win32/error'
require 'pathname'
class Chef
module ReservedNames::Win32
module API
module Installer
extend Chef::ReservedNames::Win32
extend Chef::ReservedNames::Win32::API
###############################################
# Win32 API Constants
###############################################
###############################################
# Win32 API Bindings
###############################################
ffi_lib 'msi'
=begin
UINT MsiOpenPackage(
_In_ LPCTSTR szPackagePath,
_Out_ MSIHANDLE *hProduct
);
=end
safe_attach_function :msi_open_package, :MsiOpenPackageExA, [ :string, :int, :pointer ], :int
=begin
UINT MsiGetProductProperty(
_In_ MSIHANDLE hProduct,
_In_ LPCTSTR szProperty,
_Out_ LPTSTR lpValueBuf,
_Inout_ DWORD *pcchValueBuf
);
=end
safe_attach_function :msi_get_product_property, :MsiGetProductPropertyA, [ :pointer, :pointer, :pointer, :pointer ], :int
=begin
UINT MsiGetProductInfo(
_In_ LPCTSTR szProduct,
_In_ LPCTSTR szProperty,
_Out_ LPTSTR lpValueBuf,
_Inout_ DWORD *pcchValueBuf
);
=end
safe_attach_function :msi_get_product_info, :MsiGetProductInfoA, [ :pointer, :pointer, :pointer, :pointer ], :int
=begin
UINT MsiCloseHandle(
_In_ MSIHANDLE hAny
);
=end
safe_attach_function :msi_close_handle, :MsiCloseHandle, [ :pointer ], :int
###############################################
# Helpers
###############################################
# Opens a Microsoft Installer (MSI) file from an absolute path and returns the specified property
def get_product_property(package_path, property_name)
pkg_ptr = open_package(package_path)
buffer = 0.chr
buffer_length = FFI::Buffer.new(:long).write_long(0)
# Fetch the length of the property
status = msi_get_product_property(pkg_ptr.read_pointer, property_name, buffer, buffer_length)
# We expect error ERROR_MORE_DATA (234) here because we passed a buffer length of 0
if status != 234
msg = "msi_get_product_property: returned unknown error #{status} when retrieving #{property_name}: "
msg << Chef::ReservedNames::Win32::Error.format_message(status)
raise Chef::Exceptions::Package, msg
end
buffer_length = FFI::Buffer.new(:long).write_long(buffer_length.read_long + 1)
buffer = 0.chr * buffer_length.read_long
# Fetch the property
status = msi_get_product_property(pkg_ptr.read_pointer, property_name, buffer, buffer_length)
if status != 0
msg = "msi_get_product_property: returned unknown error #{status} when retrieving #{property_name}: "
msg << Chef::ReservedNames::Win32::Error.format_message(status)
raise Chef::Exceptions::Package, msg
end
msi_close_handle(pkg_ptr.read_pointer)
return buffer.chomp(0.chr)
end
# Opens a Microsoft Installer (MSI) file from an absolute path and returns a pointer to a handle
# Remember to close the handle with msi_close_handle()
def open_package(package_path)
# MsiOpenPackage expects a perfect absolute Windows path to the MSI
raise ArgumentError, "Provided path '#{package_path}' must be an absolute path" unless Pathname.new(package_path).absolute?
pkg_ptr = FFI::MemoryPointer.new(:pointer, 4)
status = msi_open_package(package_path, 1, pkg_ptr)
case status
when 0
# success
else
raise Chef::Exceptions::Package, "msi_open_package: unexpected status #{status}: #{Chef::ReservedNames::Win32::Error.format_message(status)}"
end
return pkg_ptr
end
# All installed product_codes should have a VersionString
# Returns a version if installed, nil if not installed
def get_installed_version(product_code)
version = 0.chr
version_length = FFI::Buffer.new(:long).write_long(0)
status = msi_get_product_info(product_code, "VersionString", version, version_length)
return nil if status == 1605 # ERROR_UNKNOWN_PRODUCT (0x645)
# We expect error ERROR_MORE_DATA (234) here because we passed a buffer length of 0
if status != 234
msg = "msi_get_product_info: product code '#{product_code}' returned unknown error #{status} when retrieving VersionString: "
msg << Chef::ReservedNames::Win32::Error.format_message(status)
raise Chef::Exceptions::Package, msg
end
# We could fetch the product version now that we know the variable length, but we don't need it here.
version_length = FFI::Buffer.new(:long).write_long(version_length.read_long + 1)
version = 0.chr * version_length.read_long
status = msi_get_product_info(product_code, "VersionString", version, version_length)
if status != 0
msg = "msi_get_product_info: product code '#{product_code}' returned unknown error #{status} when retrieving VersionString: "
msg << Chef::ReservedNames::Win32::Error.format_message(status)
raise Chef::Exceptions::Package, msg
end
version.chomp(0.chr)
end
end
end
end
end
|
