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
|
# -*- coding: utf-8 -*-
#
# AWL simulator - common utility functions
#
# Copyright 2012-2014 Michael Buesch <m@bues.ch>
#
# 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.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from __future__ import division, absolute_import, print_function, unicode_literals
from awlsim.common.compat import *
from awlsim.common.enumeration import *
from awlsim.common.exceptions import *
import sys
import os
import random
import base64
import binascii
class Logging(object):
EnumGen.start
LOG_NONE = EnumGen.item
LOG_ERROR = EnumGen.item
LOG_WARNING = EnumGen.item
LOG_INFO = EnumGen.item
LOG_VERBOSE = EnumGen.item
LOG_DEBUG = EnumGen.item
EnumGen.end
loglevel = LOG_INFO
prefix = ""
@classmethod
def setLoglevel(cls, loglevel):
if loglevel not in (cls.LOG_NONE,
cls.LOG_ERROR,
cls.LOG_WARNING,
cls.LOG_INFO,
cls.LOG_VERBOSE,
cls.LOG_DEBUG):
raise AwlSimError("Invalid log level '%d'" % loglevel)
cls.loglevel = loglevel
@classmethod
def setPrefix(cls, prefix):
cls.prefix = prefix
@classmethod
def __print(cls, stream, text):
try:
if cls.prefix:
stream.write(cls.prefix)
stream.write(text)
stream.write("\n")
stream.flush()
except RuntimeError:
pass #Ignore
@classmethod
def printDebug(cls, text):
if cls.loglevel >= cls.LOG_DEBUG:
cls.__print(sys.stdout, text)
@classmethod
def printVerbose(cls, text):
if cls.loglevel >= cls.LOG_VERBOSE:
cls.__print(sys.stdout, text)
@classmethod
def printInfo(cls, text):
if cls.loglevel >= cls.LOG_INFO:
cls.__print(sys.stdout, text)
@classmethod
def printWarning(cls, text):
if cls.loglevel >= cls.LOG_WARNING:
cls.__print(sys.stderr, text)
@classmethod
def printError(cls, text):
if cls.loglevel >= cls.LOG_ERROR:
cls.__print(sys.stderr, text)
def printDebug(text):
Logging.printDebug(text)
def printVerbose(text):
Logging.printVerbose(text)
def printInfo(text):
Logging.printInfo(text)
def printWarning(text):
Logging.printWarning(text)
def printError(text):
Logging.printError(text)
def awlFileRead(filename, encoding="latin_1"):
try:
fd = open(filename, "rb")
data = fd.read()
if encoding != "binary":
data = data.decode(encoding)
fd.close()
except (IOError, UnicodeError) as e:
raise AwlParserError("Failed to read '%s': %s" %\
(filename, str(e)))
return data
def awlFileWrite(filename, data, encoding="latin_1"):
if encoding != "binary":
data = "\r\n".join(data.splitlines()) + "\r\n"
for count in range(1000):
tmpFile = "%s-%d-%d.tmp" %\
(filename, random.randint(0, 0xFFFF), count)
if not os.path.exists(tmpFile):
break
else:
raise AwlParserError("Could not create temporary file")
try:
fd = open(tmpFile, "wb")
if encoding != "binary":
data = data.encode(encoding)
fd.write(data)
fd.flush()
fd.close()
if not osIsPosix:
# Can't use safe rename on non-POSIX.
# Must unlink first.
try:
os.unlink(filename)
except OSError as e:
pass
os.rename(tmpFile, filename)
except (IOError, OSError, UnicodeError) as e:
raise AwlParserError("Failed to write file:\n" + str(e))
finally:
try:
os.unlink(tmpFile)
except (IOError, OSError):
pass
# Call a callable and suppress all exceptions,
# except for really fatal coding exceptions.
def CALL_NOEX(_callable, *args, **kwargs):
try:
return _callable(*args, **kwargs)
except (SyntaxError, NameError, AttributeError) as e:
raise
except ValueError as e:
import re
if re.match(r'.*takes exactly \d+ argument \(\d+ given\).*', str(e)) or\
re.match(r'.*missing \d+ required positional argument.*', str(e)) or\
re.match(r'.*takes \d+ positional argument but \d+ were given.*', str(e)):
raise
except Exception as e:
pass
return None
# Return a generator over all elements of all iterables
# passed to allElementsIn().
def allElementsIn(*iterables):
for iterable in iterables:
for element in iterable:
yield element
def strToBase64(string, ignoreErrors=False):
"""Convert a string to a base64 encoded ascii string.
Throws ValueError on errors, if ignoreErrors is False."""
try:
b = string.encode("utf-8", "ignore" if ignoreErrors else "strict")
return base64.b64encode(b).decode("ascii")
except (UnicodeError, binascii.Error, TypeError) as e:
if ignoreErrors:
return ""
raise ValueError
def base64ToStr(b64String, ignoreErrors=False):
"""Convert a base64 encoded ascii string to utf-8 string.
Throws ValueError on errors, if ignoreErrors is False."""
try:
b = b64String.encode("ascii",
"ignore" if ignoreErrors else "strict")
return base64.b64decode(b).decode("utf-8",
"ignore" if ignoreErrors else "strict")
except (UnicodeError, binascii.Error, TypeError) as e:
if ignoreErrors:
return ""
raise ValueError
|
