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Commit | Line | Data |
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451948b2 PH |
1 | from __future__ import unicode_literals |
2 | ||
8c25f81b | 3 | import getpass |
e07e9313 | 4 | import optparse |
8c25f81b PH |
5 | import os |
6 | import subprocess | |
7 | import sys | |
8 | ||
9 | ||
10 | try: | |
11 | import urllib.request as compat_urllib_request | |
12 | except ImportError: # Python 2 | |
13 | import urllib2 as compat_urllib_request | |
14 | ||
15 | try: | |
16 | import urllib.error as compat_urllib_error | |
17 | except ImportError: # Python 2 | |
18 | import urllib2 as compat_urllib_error | |
19 | ||
20 | try: | |
21 | import urllib.parse as compat_urllib_parse | |
22 | except ImportError: # Python 2 | |
23 | import urllib as compat_urllib_parse | |
24 | ||
25 | try: | |
26 | from urllib.parse import urlparse as compat_urllib_parse_urlparse | |
27 | except ImportError: # Python 2 | |
28 | from urlparse import urlparse as compat_urllib_parse_urlparse | |
29 | ||
30 | try: | |
31 | import urllib.parse as compat_urlparse | |
32 | except ImportError: # Python 2 | |
33 | import urlparse as compat_urlparse | |
34 | ||
35 | try: | |
36 | import http.cookiejar as compat_cookiejar | |
37 | except ImportError: # Python 2 | |
38 | import cookielib as compat_cookiejar | |
39 | ||
40 | try: | |
41 | import html.entities as compat_html_entities | |
42 | except ImportError: # Python 2 | |
43 | import htmlentitydefs as compat_html_entities | |
44 | ||
45 | try: | |
46 | import html.parser as compat_html_parser | |
47 | except ImportError: # Python 2 | |
48 | import HTMLParser as compat_html_parser | |
49 | ||
50 | try: | |
51 | import http.client as compat_http_client | |
52 | except ImportError: # Python 2 | |
53 | import httplib as compat_http_client | |
54 | ||
55 | try: | |
56 | from urllib.error import HTTPError as compat_HTTPError | |
57 | except ImportError: # Python 2 | |
58 | from urllib2 import HTTPError as compat_HTTPError | |
59 | ||
60 | try: | |
61 | from urllib.request import urlretrieve as compat_urlretrieve | |
62 | except ImportError: # Python 2 | |
63 | from urllib import urlretrieve as compat_urlretrieve | |
64 | ||
65 | ||
66 | try: | |
67 | from subprocess import DEVNULL | |
68 | compat_subprocess_get_DEVNULL = lambda: DEVNULL | |
69 | except ImportError: | |
70 | compat_subprocess_get_DEVNULL = lambda: open(os.path.devnull, 'w') | |
71 | ||
72 | try: | |
73 | from urllib.parse import unquote as compat_urllib_parse_unquote | |
74 | except ImportError: | |
75 | def compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'): | |
76 | if string == '': | |
77 | return string | |
78 | res = string.split('%') | |
79 | if len(res) == 1: | |
80 | return string | |
81 | if encoding is None: | |
82 | encoding = 'utf-8' | |
83 | if errors is None: | |
84 | errors = 'replace' | |
85 | # pct_sequence: contiguous sequence of percent-encoded bytes, decoded | |
86 | pct_sequence = b'' | |
87 | string = res[0] | |
88 | for item in res[1:]: | |
89 | try: | |
90 | if not item: | |
91 | raise ValueError | |
92 | pct_sequence += item[:2].decode('hex') | |
93 | rest = item[2:] | |
94 | if not rest: | |
95 | # This segment was just a single percent-encoded character. | |
96 | # May be part of a sequence of code units, so delay decoding. | |
97 | # (Stored in pct_sequence). | |
98 | continue | |
99 | except ValueError: | |
100 | rest = '%' + item | |
101 | # Encountered non-percent-encoded characters. Flush the current | |
102 | # pct_sequence. | |
103 | string += pct_sequence.decode(encoding, errors) + rest | |
104 | pct_sequence = b'' | |
105 | if pct_sequence: | |
106 | # Flush the final pct_sequence | |
107 | string += pct_sequence.decode(encoding, errors) | |
108 | return string | |
109 | ||
110 | ||
111 | try: | |
112 | from urllib.parse import parse_qs as compat_parse_qs | |
113 | except ImportError: # Python 2 | |
114 | # HACK: The following is the correct parse_qs implementation from cpython 3's stdlib. | |
115 | # Python 2's version is apparently totally broken | |
116 | ||
117 | def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False, | |
118 | encoding='utf-8', errors='replace'): | |
119 | qs, _coerce_result = qs, unicode | |
120 | pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')] | |
121 | r = [] | |
122 | for name_value in pairs: | |
123 | if not name_value and not strict_parsing: | |
124 | continue | |
125 | nv = name_value.split('=', 1) | |
126 | if len(nv) != 2: | |
127 | if strict_parsing: | |
128 | raise ValueError("bad query field: %r" % (name_value,)) | |
129 | # Handle case of a control-name with no equal sign | |
130 | if keep_blank_values: | |
131 | nv.append('') | |
132 | else: | |
133 | continue | |
134 | if len(nv[1]) or keep_blank_values: | |
135 | name = nv[0].replace('+', ' ') | |
136 | name = compat_urllib_parse_unquote( | |
137 | name, encoding=encoding, errors=errors) | |
138 | name = _coerce_result(name) | |
139 | value = nv[1].replace('+', ' ') | |
140 | value = compat_urllib_parse_unquote( | |
141 | value, encoding=encoding, errors=errors) | |
142 | value = _coerce_result(value) | |
143 | r.append((name, value)) | |
144 | return r | |
145 | ||
146 | def compat_parse_qs(qs, keep_blank_values=False, strict_parsing=False, | |
147 | encoding='utf-8', errors='replace'): | |
148 | parsed_result = {} | |
149 | pairs = _parse_qsl(qs, keep_blank_values, strict_parsing, | |
150 | encoding=encoding, errors=errors) | |
151 | for name, value in pairs: | |
152 | if name in parsed_result: | |
153 | parsed_result[name].append(value) | |
154 | else: | |
155 | parsed_result[name] = [value] | |
156 | return parsed_result | |
157 | ||
158 | try: | |
159 | compat_str = unicode # Python 2 | |
160 | except NameError: | |
161 | compat_str = str | |
162 | ||
163 | try: | |
164 | compat_chr = unichr # Python 2 | |
165 | except NameError: | |
166 | compat_chr = chr | |
167 | ||
168 | try: | |
169 | from xml.etree.ElementTree import ParseError as compat_xml_parse_error | |
170 | except ImportError: # Python 2.6 | |
171 | from xml.parsers.expat import ExpatError as compat_xml_parse_error | |
172 | ||
173 | try: | |
174 | from shlex import quote as shlex_quote | |
175 | except ImportError: # Python < 3.3 | |
176 | def shlex_quote(s): | |
177 | return "'" + s.replace("'", "'\"'\"'") + "'" | |
178 | ||
179 | ||
180 | def compat_ord(c): | |
181 | if type(c) is int: return c | |
182 | else: return ord(c) | |
183 | ||
184 | ||
185 | if sys.version_info >= (3, 0): | |
186 | compat_getenv = os.getenv | |
187 | compat_expanduser = os.path.expanduser | |
188 | else: | |
189 | # Environment variables should be decoded with filesystem encoding. | |
190 | # Otherwise it will fail if any non-ASCII characters present (see #3854 #3217 #2918) | |
191 | ||
192 | def compat_getenv(key, default=None): | |
193 | from .utils import get_filesystem_encoding | |
194 | env = os.getenv(key, default) | |
195 | if env: | |
196 | env = env.decode(get_filesystem_encoding()) | |
197 | return env | |
198 | ||
199 | # HACK: The default implementations of os.path.expanduser from cpython do not decode | |
200 | # environment variables with filesystem encoding. We will work around this by | |
201 | # providing adjusted implementations. | |
202 | # The following are os.path.expanduser implementations from cpython 2.7.8 stdlib | |
203 | # for different platforms with correct environment variables decoding. | |
204 | ||
205 | if os.name == 'posix': | |
206 | def compat_expanduser(path): | |
207 | """Expand ~ and ~user constructions. If user or $HOME is unknown, | |
208 | do nothing.""" | |
209 | if not path.startswith('~'): | |
210 | return path | |
211 | i = path.find('/', 1) | |
212 | if i < 0: | |
213 | i = len(path) | |
214 | if i == 1: | |
215 | if 'HOME' not in os.environ: | |
216 | import pwd | |
217 | userhome = pwd.getpwuid(os.getuid()).pw_dir | |
218 | else: | |
219 | userhome = compat_getenv('HOME') | |
220 | else: | |
221 | import pwd | |
222 | try: | |
223 | pwent = pwd.getpwnam(path[1:i]) | |
224 | except KeyError: | |
225 | return path | |
226 | userhome = pwent.pw_dir | |
227 | userhome = userhome.rstrip('/') | |
228 | return (userhome + path[i:]) or '/' | |
229 | elif os.name == 'nt' or os.name == 'ce': | |
230 | def compat_expanduser(path): | |
231 | """Expand ~ and ~user constructs. | |
232 | ||
233 | If user or $HOME is unknown, do nothing.""" | |
234 | if path[:1] != '~': | |
235 | return path | |
236 | i, n = 1, len(path) | |
237 | while i < n and path[i] not in '/\\': | |
238 | i = i + 1 | |
239 | ||
240 | if 'HOME' in os.environ: | |
241 | userhome = compat_getenv('HOME') | |
242 | elif 'USERPROFILE' in os.environ: | |
243 | userhome = compat_getenv('USERPROFILE') | |
244 | elif not 'HOMEPATH' in os.environ: | |
245 | return path | |
246 | else: | |
247 | try: | |
248 | drive = compat_getenv('HOMEDRIVE') | |
249 | except KeyError: | |
250 | drive = '' | |
251 | userhome = os.path.join(drive, compat_getenv('HOMEPATH')) | |
252 | ||
253 | if i != 1: #~user | |
254 | userhome = os.path.join(os.path.dirname(userhome), path[1:i]) | |
255 | ||
256 | return userhome + path[i:] | |
257 | else: | |
258 | compat_expanduser = os.path.expanduser | |
259 | ||
260 | ||
261 | if sys.version_info < (3, 0): | |
262 | def compat_print(s): | |
263 | from .utils import preferredencoding | |
264 | print(s.encode(preferredencoding(), 'xmlcharrefreplace')) | |
265 | else: | |
266 | def compat_print(s): | |
267 | assert type(s) == type(u'') | |
268 | print(s) | |
269 | ||
270 | ||
271 | try: | |
272 | subprocess_check_output = subprocess.check_output | |
273 | except AttributeError: | |
274 | def subprocess_check_output(*args, **kwargs): | |
275 | assert 'input' not in kwargs | |
276 | p = subprocess.Popen(*args, stdout=subprocess.PIPE, **kwargs) | |
277 | output, _ = p.communicate() | |
278 | ret = p.poll() | |
279 | if ret: | |
280 | raise subprocess.CalledProcessError(ret, p.args, output=output) | |
281 | return output | |
282 | ||
283 | if sys.version_info < (3, 0) and sys.platform == 'win32': | |
284 | def compat_getpass(prompt, *args, **kwargs): | |
285 | if isinstance(prompt, compat_str): | |
baa70803 | 286 | from .utils import preferredencoding |
8c25f81b PH |
287 | prompt = prompt.encode(preferredencoding()) |
288 | return getpass.getpass(prompt, *args, **kwargs) | |
289 | else: | |
290 | compat_getpass = getpass.getpass | |
291 | ||
c7b0add8 PH |
292 | # Old 2.6 and 2.7 releases require kwargs to be bytes |
293 | try: | |
294 | (lambda x: x)(**{'x': 0}) | |
295 | except TypeError: | |
296 | def compat_kwargs(kwargs): | |
297 | return dict((bytes(k), v) for k, v in kwargs.items()) | |
298 | else: | |
299 | compat_kwargs = lambda kwargs: kwargs | |
8c25f81b | 300 | |
e07e9313 PH |
301 | |
302 | # Fix https://github.com/rg3/youtube-dl/issues/4223 | |
303 | # See http://bugs.python.org/issue9161 for what is broken | |
304 | def workaround_optparse_bug9161(): | |
305 | try: | |
306 | optparse.OptionGroup('foo').add_option('-t') | |
307 | except TypeError: | |
308 | real_add_option = optparse.OptionGroup.add_option | |
309 | ||
310 | def _compat_add_option(self, *args, **kwargs): | |
311 | enc = lambda v: ( | |
312 | v.encode('ascii', 'replace') if isinstance(v, compat_str) | |
313 | else v) | |
314 | bargs = [enc(a) for a in args] | |
315 | bkwargs = dict( | |
316 | (k, enc(v)) for k, v in kwargs.items()) | |
317 | return real_add_option(self, *bargs, **bkwargs) | |
318 | optparse.OptionGroup.add_option = _compat_add_option | |
319 | ||
320 | ||
8c25f81b PH |
321 | __all__ = [ |
322 | 'compat_HTTPError', | |
323 | 'compat_chr', | |
324 | 'compat_cookiejar', | |
325 | 'compat_expanduser', | |
326 | 'compat_getenv', | |
327 | 'compat_getpass', | |
328 | 'compat_html_entities', | |
329 | 'compat_html_parser', | |
330 | 'compat_http_client', | |
c7b0add8 | 331 | 'compat_kwargs', |
8c25f81b PH |
332 | 'compat_ord', |
333 | 'compat_parse_qs', | |
334 | 'compat_print', | |
335 | 'compat_str', | |
336 | 'compat_subprocess_get_DEVNULL', | |
337 | 'compat_urllib_error', | |
338 | 'compat_urllib_parse', | |
339 | 'compat_urllib_parse_unquote', | |
340 | 'compat_urllib_parse_urlparse', | |
341 | 'compat_urllib_request', | |
342 | 'compat_urlparse', | |
343 | 'compat_urlretrieve', | |
344 | 'compat_xml_parse_error', | |
345 | 'shlex_quote', | |
346 | 'subprocess_check_output', | |
e07e9313 | 347 | 'workaround_optparse_bug9161', |
8c25f81b | 348 | ] |