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
254
255
256
257
258
259
260
261
|
import re
from typing import Iterable, Tuple, Optional
from debputy.architecture_support import DpkgArchitectureBuildProcessValuesTable
from debputy.exceptions import PureVirtualPathError, TestPathWithNonExistentFSPathError
from debputy.intermediate_manifest import PathType
from debputy.manifest_parser.base_types import SymbolicMode, OctalMode, FileSystemMode
from debputy.manifest_parser.util import AttributePath
from debputy.packages import BinaryPackage
from debputy.path_matcher import (
MATCH_ANYTHING,
MatchRule,
ExactFileSystemPath,
DirectoryBasedMatch,
MatchRuleType,
BasenameGlobMatch,
)
from debputy.substitution import Substitution
from debputy.types import VP
from debputy.util import _normalize_path, perl_module_dirs
# Imported from dh_fixperms
_PERMISSION_NORMALIZATION_SOURCE_DEFINITION = "permission normalization"
attribute_path = AttributePath.builtin_path()[
_PERMISSION_NORMALIZATION_SOURCE_DEFINITION
]
_STD_FILE_MODE = OctalMode(0o644)
_PATH_FILE_MODE = OctalMode(0o755)
_HAS_BIN_SHBANG_RE = re.compile(rb"^#!\s*/(?:usr/)?s?bin", re.ASCII)
class _UsrShareDocMatchRule(DirectoryBasedMatch):
def __init__(self) -> None:
super().__init__(
MatchRuleType.ANYTHING_BENEATH_DIR,
_normalize_path("usr/share/doc", with_prefix=True),
path_type=PathType.FILE,
)
def finditer(self, fs_root: VP, *, ignore_paths=None) -> Iterable[VP]:
doc_dir = fs_root.lookup(self._directory)
if doc_dir is None:
return
for path_in_doc_dir in doc_dir.iterdir:
if ignore_paths is not None and ignore_paths(path_in_doc_dir):
continue
if path_in_doc_dir.is_file:
yield path_in_doc_dir
for subpath in path_in_doc_dir.iterdir:
if subpath.name == "examples" and subpath.is_dir:
continue
if ignore_paths is not None:
yield from (
f
for f in subpath.all_paths()
if f.is_file and not ignore_paths(f)
)
else:
yield from (f for f in subpath.all_paths() if f.is_file)
def describe_match_short(self) -> str:
return f"All files beneath {self._directory}/ except .../<pkg>/examples"
def describe_match_exact(self) -> str:
return self.describe_match_short()
class _ShebangScriptFiles(MatchRule):
def __init__(self) -> None:
super().__init__(MatchRuleType.GENERIC_GLOB)
def finditer(self, fs_root: VP, *, ignore_paths=None) -> Iterable[VP]:
for p in fs_root.all_paths():
if not p.is_file or (ignore_paths and ignore_paths(p)):
continue
try:
with p.open(byte_io=True) as fd:
c = fd.read(32)
except (PureVirtualPathError, TestPathWithNonExistentFSPathError):
continue
if _HAS_BIN_SHBANG_RE.match(c):
yield p
@property
def path_type(self) -> Optional[PathType]:
return PathType.FILE
def _full_pattern(self) -> str:
return "built-in - not a valid pattern"
def describe_match_short(self) -> str:
return "All scripts with a absolute #!-line for /(s)bin or /usr/(s)bin"
def describe_match_exact(self) -> str:
return self.describe_match_short()
USR_SHARE_DOC_MATCH_RULE = _UsrShareDocMatchRule()
SHEBANG_SCRIPTS = _ShebangScriptFiles()
del _UsrShareDocMatchRule
del _ShebangScriptFiles
def builtin_mode_normalization_rules(
dpkg_architecture_variables: DpkgArchitectureBuildProcessValuesTable,
dctrl_bin: BinaryPackage,
substitution: Substitution,
) -> Iterable[Tuple[MatchRule, FileSystemMode]]:
yield from (
(
MatchRule.from_path_or_glob(
x,
_PERMISSION_NORMALIZATION_SOURCE_DEFINITION,
path_type=PathType.FILE,
),
_STD_FILE_MODE,
)
for x in (
"*.so.*",
"*.so",
"*.la",
"*.a",
"*.js",
"*.css",
"*.scss",
"*.sass",
"*.jpeg",
"*.jpg",
"*.png",
"*.gif",
"*.cmxs",
"*.node",
)
)
yield from (
(
MatchRule.recursive_beneath_directory(
x,
_PERMISSION_NORMALIZATION_SOURCE_DEFINITION,
path_type=PathType.FILE,
),
_STD_FILE_MODE,
)
for x in (
"usr/share/man",
"usr/include",
"usr/share/applications",
"usr/share/lintian/overrides",
)
)
# The dh_fixperms tool recuses for these directories, but probably should not (see #1006927)
yield from (
(
MatchRule.from_path_or_glob(
f"{x}/*",
_PERMISSION_NORMALIZATION_SOURCE_DEFINITION,
path_type=PathType.FILE,
),
_PATH_FILE_MODE,
)
for x in (
"usr/bin",
"usr/bin/mh",
"bin",
"usr/sbin",
"sbin",
"usr/games",
"usr/libexec",
"etc/init.d",
)
)
yield (
# Strictly speaking, dh_fixperms does a recursive search but in practice, it does not matter.
MatchRule.from_path_or_glob(
"etc/sudoers.d/*",
_PERMISSION_NORMALIZATION_SOURCE_DEFINITION,
path_type=PathType.FILE,
),
OctalMode(0o440),
)
# The reportbug rule
yield (
ExactFileSystemPath(
substitution.substitute(
_normalize_path("usr/share/bug/{{PACKAGE}}"),
_PERMISSION_NORMALIZATION_SOURCE_DEFINITION,
)
),
OctalMode(0o755),
)
yield (
MatchRule.recursive_beneath_directory(
"usr/share/bug/{{PACKAGE}}",
_PERMISSION_NORMALIZATION_SOURCE_DEFINITION,
path_type=PathType.FILE,
substitution=substitution,
),
OctalMode(0o644),
)
yield (
ExactFileSystemPath(
substitution.substitute(
_normalize_path("usr/share/bug/{{PACKAGE}}/script"),
_PERMISSION_NORMALIZATION_SOURCE_DEFINITION,
)
),
OctalMode(0o755),
)
yield (
USR_SHARE_DOC_MATCH_RULE,
OctalMode(0o0644),
)
yield from (
(
BasenameGlobMatch(
"*.pm",
only_when_in_directory=perl_dir,
path_type=PathType.FILE,
recursive_match=True,
),
SymbolicMode.parse_filesystem_mode(
"a-x",
attribute_path['"*.pm'],
),
)
for perl_dir in perl_module_dirs(dpkg_architecture_variables, dctrl_bin)
)
yield (
BasenameGlobMatch(
"*.ali",
only_when_in_directory=_normalize_path("usr/lib"),
path_type=PathType.FILE,
recursive_match=True,
),
SymbolicMode.parse_filesystem_mode(
"a-w",
attribute_path['"*.ali"'],
),
)
yield (
SHEBANG_SCRIPTS,
_PATH_FILE_MODE,
)
yield (
MATCH_ANYTHING,
SymbolicMode.parse_filesystem_mode(
"go=rX,u+rw,a-s",
attribute_path["**/*"],
),
)
|
