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Commit | Line | Data |
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d77c3dfd FV |
1 | #!/usr/bin/env python |
2 | # -*- coding: utf-8 -*- | |
3 | ||
e3946f98 | 4 | import ctypes |
c496ca96 PH |
5 | import datetime |
6 | import email.utils | |
f45c185f | 7 | import errno |
d77c3dfd | 8 | import gzip |
b7ab0590 | 9 | import itertools |
03f9daab | 10 | import io |
f4bfd65f | 11 | import json |
d77c3dfd | 12 | import locale |
02dbf93f | 13 | import math |
d77c3dfd | 14 | import os |
4eb7f1d1 | 15 | import pipes |
c496ca96 | 16 | import platform |
d77c3dfd | 17 | import re |
13ebea79 | 18 | import ssl |
c496ca96 | 19 | import socket |
b53466e1 | 20 | import struct |
1c088fa8 | 21 | import subprocess |
d77c3dfd | 22 | import sys |
01951dda | 23 | import traceback |
d77c3dfd | 24 | import zlib |
d77c3dfd | 25 | |
01ba00ca | 26 | try: |
59ae15a5 | 27 | import urllib.request as compat_urllib_request |
01ba00ca | 28 | except ImportError: # Python 2 |
59ae15a5 | 29 | import urllib2 as compat_urllib_request |
01ba00ca PH |
30 | |
31 | try: | |
59ae15a5 | 32 | import urllib.error as compat_urllib_error |
01ba00ca | 33 | except ImportError: # Python 2 |
59ae15a5 | 34 | import urllib2 as compat_urllib_error |
01ba00ca PH |
35 | |
36 | try: | |
59ae15a5 | 37 | import urllib.parse as compat_urllib_parse |
01ba00ca | 38 | except ImportError: # Python 2 |
59ae15a5 | 39 | import urllib as compat_urllib_parse |
01ba00ca | 40 | |
799c0763 PH |
41 | try: |
42 | from urllib.parse import urlparse as compat_urllib_parse_urlparse | |
43 | except ImportError: # Python 2 | |
44 | from urlparse import urlparse as compat_urllib_parse_urlparse | |
45 | ||
6543f0dc JMF |
46 | try: |
47 | import urllib.parse as compat_urlparse | |
48 | except ImportError: # Python 2 | |
49 | import urlparse as compat_urlparse | |
50 | ||
01ba00ca | 51 | try: |
59ae15a5 | 52 | import http.cookiejar as compat_cookiejar |
01ba00ca | 53 | except ImportError: # Python 2 |
59ae15a5 | 54 | import cookielib as compat_cookiejar |
01ba00ca | 55 | |
3e669f36 | 56 | try: |
59ae15a5 | 57 | import html.entities as compat_html_entities |
9f37a959 | 58 | except ImportError: # Python 2 |
59ae15a5 | 59 | import htmlentitydefs as compat_html_entities |
3e669f36 | 60 | |
a8156c1d | 61 | try: |
59ae15a5 | 62 | import html.parser as compat_html_parser |
9f37a959 | 63 | except ImportError: # Python 2 |
59ae15a5 | 64 | import HTMLParser as compat_html_parser |
a8156c1d | 65 | |
348d0a7a | 66 | try: |
59ae15a5 | 67 | import http.client as compat_http_client |
9f37a959 | 68 | except ImportError: # Python 2 |
59ae15a5 | 69 | import httplib as compat_http_client |
348d0a7a | 70 | |
2eabb802 | 71 | try: |
0e283428 | 72 | from urllib.error import HTTPError as compat_HTTPError |
2eabb802 PH |
73 | except ImportError: # Python 2 |
74 | from urllib2 import HTTPError as compat_HTTPError | |
75 | ||
e0df6211 PH |
76 | try: |
77 | from urllib.request import urlretrieve as compat_urlretrieve | |
78 | except ImportError: # Python 2 | |
79 | from urllib import urlretrieve as compat_urlretrieve | |
80 | ||
81 | ||
5910e210 PH |
82 | try: |
83 | from subprocess import DEVNULL | |
84 | compat_subprocess_get_DEVNULL = lambda: DEVNULL | |
85 | except ImportError: | |
86 | compat_subprocess_get_DEVNULL = lambda: open(os.path.devnull, 'w') | |
87 | ||
9f37a959 | 88 | try: |
59ae15a5 | 89 | from urllib.parse import parse_qs as compat_parse_qs |
9f37a959 | 90 | except ImportError: # Python 2 |
59ae15a5 PH |
91 | # HACK: The following is the correct parse_qs implementation from cpython 3's stdlib. |
92 | # Python 2's version is apparently totally broken | |
93 | def _unquote(string, encoding='utf-8', errors='replace'): | |
94 | if string == '': | |
95 | return string | |
96 | res = string.split('%') | |
97 | if len(res) == 1: | |
98 | return string | |
99 | if encoding is None: | |
100 | encoding = 'utf-8' | |
101 | if errors is None: | |
102 | errors = 'replace' | |
103 | # pct_sequence: contiguous sequence of percent-encoded bytes, decoded | |
104 | pct_sequence = b'' | |
105 | string = res[0] | |
106 | for item in res[1:]: | |
107 | try: | |
108 | if not item: | |
109 | raise ValueError | |
110 | pct_sequence += item[:2].decode('hex') | |
111 | rest = item[2:] | |
112 | if not rest: | |
113 | # This segment was just a single percent-encoded character. | |
114 | # May be part of a sequence of code units, so delay decoding. | |
115 | # (Stored in pct_sequence). | |
116 | continue | |
117 | except ValueError: | |
118 | rest = '%' + item | |
119 | # Encountered non-percent-encoded characters. Flush the current | |
120 | # pct_sequence. | |
121 | string += pct_sequence.decode(encoding, errors) + rest | |
122 | pct_sequence = b'' | |
123 | if pct_sequence: | |
124 | # Flush the final pct_sequence | |
125 | string += pct_sequence.decode(encoding, errors) | |
126 | return string | |
127 | ||
128 | def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False, | |
129 | encoding='utf-8', errors='replace'): | |
130 | qs, _coerce_result = qs, unicode | |
131 | pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')] | |
132 | r = [] | |
133 | for name_value in pairs: | |
134 | if not name_value and not strict_parsing: | |
135 | continue | |
136 | nv = name_value.split('=', 1) | |
137 | if len(nv) != 2: | |
138 | if strict_parsing: | |
139 | raise ValueError("bad query field: %r" % (name_value,)) | |
140 | # Handle case of a control-name with no equal sign | |
141 | if keep_blank_values: | |
142 | nv.append('') | |
143 | else: | |
144 | continue | |
145 | if len(nv[1]) or keep_blank_values: | |
146 | name = nv[0].replace('+', ' ') | |
147 | name = _unquote(name, encoding=encoding, errors=errors) | |
148 | name = _coerce_result(name) | |
149 | value = nv[1].replace('+', ' ') | |
150 | value = _unquote(value, encoding=encoding, errors=errors) | |
151 | value = _coerce_result(value) | |
152 | r.append((name, value)) | |
153 | return r | |
154 | ||
155 | def compat_parse_qs(qs, keep_blank_values=False, strict_parsing=False, | |
156 | encoding='utf-8', errors='replace'): | |
157 | parsed_result = {} | |
158 | pairs = _parse_qsl(qs, keep_blank_values, strict_parsing, | |
159 | encoding=encoding, errors=errors) | |
160 | for name, value in pairs: | |
161 | if name in parsed_result: | |
162 | parsed_result[name].append(value) | |
163 | else: | |
164 | parsed_result[name] = [value] | |
165 | return parsed_result | |
348d0a7a | 166 | |
3e669f36 | 167 | try: |
59ae15a5 | 168 | compat_str = unicode # Python 2 |
3e669f36 | 169 | except NameError: |
59ae15a5 | 170 | compat_str = str |
3e669f36 PH |
171 | |
172 | try: | |
59ae15a5 | 173 | compat_chr = unichr # Python 2 |
3e669f36 | 174 | except NameError: |
59ae15a5 | 175 | compat_chr = chr |
3e669f36 | 176 | |
f7300c5c JMF |
177 | try: |
178 | from xml.etree.ElementTree import ParseError as compat_xml_parse_error | |
179 | except ImportError: # Python 2.6 | |
180 | from xml.parsers.expat import ExpatError as compat_xml_parse_error | |
181 | ||
b31756c1 FV |
182 | def compat_ord(c): |
183 | if type(c) is int: return c | |
184 | else: return ord(c) | |
185 | ||
468e2e92 FV |
186 | # This is not clearly defined otherwise |
187 | compiled_regex_type = type(re.compile('')) | |
188 | ||
3e669f36 | 189 | std_headers = { |
ae8f7871 | 190 | 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101 Firefox/10.0 (Chrome)', |
59ae15a5 PH |
191 | 'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7', |
192 | 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', | |
193 | 'Accept-Encoding': 'gzip, deflate', | |
194 | 'Accept-Language': 'en-us,en;q=0.5', | |
3e669f36 | 195 | } |
f427df17 | 196 | |
d77c3dfd | 197 | def preferredencoding(): |
59ae15a5 | 198 | """Get preferred encoding. |
d77c3dfd | 199 | |
59ae15a5 PH |
200 | Returns the best encoding scheme for the system, based on |
201 | locale.getpreferredencoding() and some further tweaks. | |
202 | """ | |
203 | try: | |
204 | pref = locale.getpreferredencoding() | |
205 | u'TEST'.encode(pref) | |
206 | except: | |
207 | pref = 'UTF-8' | |
bae611f2 | 208 | |
59ae15a5 | 209 | return pref |
d77c3dfd | 210 | |
8cd10ac4 | 211 | if sys.version_info < (3,0): |
59ae15a5 PH |
212 | def compat_print(s): |
213 | print(s.encode(preferredencoding(), 'xmlcharrefreplace')) | |
8cd10ac4 | 214 | else: |
59ae15a5 PH |
215 | def compat_print(s): |
216 | assert type(s) == type(u'') | |
217 | print(s) | |
d77c3dfd | 218 | |
f4bfd65f PH |
219 | # In Python 2.x, json.dump expects a bytestream. |
220 | # In Python 3.x, it writes to a character stream | |
221 | if sys.version_info < (3,0): | |
222 | def write_json_file(obj, fn): | |
223 | with open(fn, 'wb') as f: | |
224 | json.dump(obj, f) | |
225 | else: | |
226 | def write_json_file(obj, fn): | |
227 | with open(fn, 'w', encoding='utf-8') as f: | |
228 | json.dump(obj, f) | |
229 | ||
59ae56fa PH |
230 | if sys.version_info >= (2,7): |
231 | def find_xpath_attr(node, xpath, key, val): | |
232 | """ Find the xpath xpath[@key=val] """ | |
5de3ece2 | 233 | assert re.match(r'^[a-zA-Z]+$', key) |
af1588c0 | 234 | assert re.match(r'^[a-zA-Z0-9@\s:._]*$', val) |
59ae56fa PH |
235 | expr = xpath + u"[@%s='%s']" % (key, val) |
236 | return node.find(expr) | |
237 | else: | |
238 | def find_xpath_attr(node, xpath, key, val): | |
239 | for f in node.findall(xpath): | |
240 | if f.attrib.get(key) == val: | |
241 | return f | |
242 | return None | |
243 | ||
d7e66d39 JMF |
244 | # On python2.6 the xml.etree.ElementTree.Element methods don't support |
245 | # the namespace parameter | |
246 | def xpath_with_ns(path, ns_map): | |
247 | components = [c.split(':') for c in path.split('/')] | |
248 | replaced = [] | |
249 | for c in components: | |
250 | if len(c) == 1: | |
251 | replaced.append(c[0]) | |
252 | else: | |
253 | ns, tag = c | |
254 | replaced.append('{%s}%s' % (ns_map[ns], tag)) | |
255 | return '/'.join(replaced) | |
256 | ||
d77c3dfd | 257 | def htmlentity_transform(matchobj): |
59ae15a5 PH |
258 | """Transforms an HTML entity to a character. |
259 | ||
260 | This function receives a match object and is intended to be used with | |
261 | the re.sub() function. | |
262 | """ | |
263 | entity = matchobj.group(1) | |
264 | ||
265 | # Known non-numeric HTML entity | |
266 | if entity in compat_html_entities.name2codepoint: | |
267 | return compat_chr(compat_html_entities.name2codepoint[entity]) | |
268 | ||
269 | mobj = re.match(u'(?u)#(x?\\d+)', entity) | |
270 | if mobj is not None: | |
271 | numstr = mobj.group(1) | |
272 | if numstr.startswith(u'x'): | |
273 | base = 16 | |
274 | numstr = u'0%s' % numstr | |
275 | else: | |
276 | base = 10 | |
277 | return compat_chr(int(numstr, base)) | |
278 | ||
279 | # Unknown entity in name, return its literal representation | |
280 | return (u'&%s;' % entity) | |
d77c3dfd | 281 | |
a8156c1d | 282 | compat_html_parser.locatestarttagend = re.compile(r"""<[a-zA-Z][-.a-zA-Z0-9:_]*(?:\s+(?:(?<=['"\s])[^\s/>][^\s/=>]*(?:\s*=+\s*(?:'[^']*'|"[^"]*"|(?!['"])[^>\s]*))?\s*)*)?\s*""", re.VERBOSE) # backport bugfix |
a921f407 JMF |
283 | class BaseHTMLParser(compat_html_parser.HTMLParser): |
284 | def __init(self): | |
285 | compat_html_parser.HTMLParser.__init__(self) | |
286 | self.html = None | |
287 | ||
288 | def loads(self, html): | |
289 | self.html = html | |
290 | self.feed(html) | |
291 | self.close() | |
292 | ||
293 | class AttrParser(BaseHTMLParser): | |
43e8fafd ND |
294 | """Modified HTMLParser that isolates a tag with the specified attribute""" |
295 | def __init__(self, attribute, value): | |
296 | self.attribute = attribute | |
297 | self.value = value | |
59ae15a5 PH |
298 | self.result = None |
299 | self.started = False | |
300 | self.depth = {} | |
59ae15a5 PH |
301 | self.watch_startpos = False |
302 | self.error_count = 0 | |
a921f407 | 303 | BaseHTMLParser.__init__(self) |
59ae15a5 PH |
304 | |
305 | def error(self, message): | |
306 | if self.error_count > 10 or self.started: | |
307 | raise compat_html_parser.HTMLParseError(message, self.getpos()) | |
308 | self.rawdata = '\n'.join(self.html.split('\n')[self.getpos()[0]:]) # skip one line | |
309 | self.error_count += 1 | |
310 | self.goahead(1) | |
311 | ||
59ae15a5 PH |
312 | def handle_starttag(self, tag, attrs): |
313 | attrs = dict(attrs) | |
314 | if self.started: | |
315 | self.find_startpos(None) | |
43e8fafd | 316 | if self.attribute in attrs and attrs[self.attribute] == self.value: |
59ae15a5 PH |
317 | self.result = [tag] |
318 | self.started = True | |
319 | self.watch_startpos = True | |
320 | if self.started: | |
321 | if not tag in self.depth: self.depth[tag] = 0 | |
322 | self.depth[tag] += 1 | |
323 | ||
324 | def handle_endtag(self, tag): | |
325 | if self.started: | |
326 | if tag in self.depth: self.depth[tag] -= 1 | |
327 | if self.depth[self.result[0]] == 0: | |
328 | self.started = False | |
329 | self.result.append(self.getpos()) | |
330 | ||
331 | def find_startpos(self, x): | |
332 | """Needed to put the start position of the result (self.result[1]) | |
333 | after the opening tag with the requested id""" | |
334 | if self.watch_startpos: | |
335 | self.watch_startpos = False | |
336 | self.result.append(self.getpos()) | |
337 | handle_entityref = handle_charref = handle_data = handle_comment = \ | |
338 | handle_decl = handle_pi = unknown_decl = find_startpos | |
339 | ||
340 | def get_result(self): | |
341 | if self.result is None: | |
342 | return None | |
343 | if len(self.result) != 3: | |
344 | return None | |
345 | lines = self.html.split('\n') | |
346 | lines = lines[self.result[1][0]-1:self.result[2][0]] | |
347 | lines[0] = lines[0][self.result[1][1]:] | |
348 | if len(lines) == 1: | |
349 | lines[-1] = lines[-1][:self.result[2][1]-self.result[1][1]] | |
350 | lines[-1] = lines[-1][:self.result[2][1]] | |
351 | return '\n'.join(lines).strip() | |
3b024e17 PH |
352 | # Hack for https://github.com/rg3/youtube-dl/issues/662 |
353 | if sys.version_info < (2, 7, 3): | |
354 | AttrParser.parse_endtag = (lambda self, i: | |
355 | i + len("</scr'+'ipt>") | |
356 | if self.rawdata[i:].startswith("</scr'+'ipt>") | |
357 | else compat_html_parser.HTMLParser.parse_endtag(self, i)) | |
9e6dd238 FV |
358 | |
359 | def get_element_by_id(id, html): | |
43e8fafd ND |
360 | """Return the content of the tag with the specified ID in the passed HTML document""" |
361 | return get_element_by_attribute("id", id, html) | |
362 | ||
363 | def get_element_by_attribute(attribute, value, html): | |
364 | """Return the content of the tag with the specified attribute in the passed HTML document""" | |
365 | parser = AttrParser(attribute, value) | |
59ae15a5 PH |
366 | try: |
367 | parser.loads(html) | |
368 | except compat_html_parser.HTMLParseError: | |
369 | pass | |
370 | return parser.get_result() | |
9e6dd238 | 371 | |
a921f407 JMF |
372 | class MetaParser(BaseHTMLParser): |
373 | """ | |
374 | Modified HTMLParser that isolates a meta tag with the specified name | |
375 | attribute. | |
376 | """ | |
377 | def __init__(self, name): | |
378 | BaseHTMLParser.__init__(self) | |
379 | self.name = name | |
380 | self.content = None | |
381 | self.result = None | |
382 | ||
383 | def handle_starttag(self, tag, attrs): | |
384 | if tag != 'meta': | |
385 | return | |
386 | attrs = dict(attrs) | |
387 | if attrs.get('name') == self.name: | |
388 | self.result = attrs.get('content') | |
389 | ||
390 | def get_result(self): | |
391 | return self.result | |
392 | ||
393 | def get_meta_content(name, html): | |
394 | """ | |
395 | Return the content attribute from the meta tag with the given name attribute. | |
396 | """ | |
397 | parser = MetaParser(name) | |
398 | try: | |
399 | parser.loads(html) | |
400 | except compat_html_parser.HTMLParseError: | |
401 | pass | |
402 | return parser.get_result() | |
403 | ||
9e6dd238 FV |
404 | |
405 | def clean_html(html): | |
59ae15a5 PH |
406 | """Clean an HTML snippet into a readable string""" |
407 | # Newline vs <br /> | |
408 | html = html.replace('\n', ' ') | |
6b3aef80 FV |
409 | html = re.sub(r'\s*<\s*br\s*/?\s*>\s*', '\n', html) |
410 | html = re.sub(r'<\s*/\s*p\s*>\s*<\s*p[^>]*>', '\n', html) | |
59ae15a5 PH |
411 | # Strip html tags |
412 | html = re.sub('<.*?>', '', html) | |
413 | # Replace html entities | |
414 | html = unescapeHTML(html) | |
7decf895 | 415 | return html.strip() |
9e6dd238 FV |
416 | |
417 | ||
d77c3dfd | 418 | def sanitize_open(filename, open_mode): |
59ae15a5 PH |
419 | """Try to open the given filename, and slightly tweak it if this fails. |
420 | ||
421 | Attempts to open the given filename. If this fails, it tries to change | |
422 | the filename slightly, step by step, until it's either able to open it | |
423 | or it fails and raises a final exception, like the standard open() | |
424 | function. | |
425 | ||
426 | It returns the tuple (stream, definitive_file_name). | |
427 | """ | |
428 | try: | |
429 | if filename == u'-': | |
430 | if sys.platform == 'win32': | |
431 | import msvcrt | |
432 | msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) | |
898280a0 | 433 | return (sys.stdout.buffer if hasattr(sys.stdout, 'buffer') else sys.stdout, filename) |
59ae15a5 PH |
434 | stream = open(encodeFilename(filename), open_mode) |
435 | return (stream, filename) | |
436 | except (IOError, OSError) as err: | |
f45c185f PH |
437 | if err.errno in (errno.EACCES,): |
438 | raise | |
59ae15a5 | 439 | |
f45c185f PH |
440 | # In case of error, try to remove win32 forbidden chars |
441 | alt_filename = os.path.join( | |
442 | re.sub(u'[/<>:"\\|\\\\?\\*]', u'#', path_part) | |
443 | for path_part in os.path.split(filename) | |
444 | ) | |
445 | if alt_filename == filename: | |
446 | raise | |
447 | else: | |
448 | # An exception here should be caught in the caller | |
449 | stream = open(encodeFilename(filename), open_mode) | |
450 | return (stream, alt_filename) | |
d77c3dfd FV |
451 | |
452 | ||
453 | def timeconvert(timestr): | |
59ae15a5 PH |
454 | """Convert RFC 2822 defined time string into system timestamp""" |
455 | timestamp = None | |
456 | timetuple = email.utils.parsedate_tz(timestr) | |
457 | if timetuple is not None: | |
458 | timestamp = email.utils.mktime_tz(timetuple) | |
459 | return timestamp | |
1c469a94 | 460 | |
796173d0 | 461 | def sanitize_filename(s, restricted=False, is_id=False): |
59ae15a5 PH |
462 | """Sanitizes a string so it could be used as part of a filename. |
463 | If restricted is set, use a stricter subset of allowed characters. | |
796173d0 | 464 | Set is_id if this is not an arbitrary string, but an ID that should be kept if possible |
59ae15a5 PH |
465 | """ |
466 | def replace_insane(char): | |
467 | if char == '?' or ord(char) < 32 or ord(char) == 127: | |
468 | return '' | |
469 | elif char == '"': | |
470 | return '' if restricted else '\'' | |
471 | elif char == ':': | |
472 | return '_-' if restricted else ' -' | |
473 | elif char in '\\/|*<>': | |
474 | return '_' | |
627dcfff | 475 | if restricted and (char in '!&\'()[]{}$;`^,#' or char.isspace()): |
59ae15a5 PH |
476 | return '_' |
477 | if restricted and ord(char) > 127: | |
478 | return '_' | |
479 | return char | |
480 | ||
481 | result = u''.join(map(replace_insane, s)) | |
796173d0 PH |
482 | if not is_id: |
483 | while '__' in result: | |
484 | result = result.replace('__', '_') | |
485 | result = result.strip('_') | |
486 | # Common case of "Foreign band name - English song title" | |
487 | if restricted and result.startswith('-_'): | |
488 | result = result[2:] | |
489 | if not result: | |
490 | result = '_' | |
59ae15a5 | 491 | return result |
d77c3dfd FV |
492 | |
493 | def orderedSet(iterable): | |
59ae15a5 PH |
494 | """ Remove all duplicates from the input iterable """ |
495 | res = [] | |
496 | for el in iterable: | |
497 | if el not in res: | |
498 | res.append(el) | |
499 | return res | |
d77c3dfd FV |
500 | |
501 | def unescapeHTML(s): | |
59ae15a5 PH |
502 | """ |
503 | @param s a string | |
504 | """ | |
505 | assert type(s) == type(u'') | |
d77c3dfd | 506 | |
59ae15a5 PH |
507 | result = re.sub(u'(?u)&(.+?);', htmlentity_transform, s) |
508 | return result | |
d77c3dfd | 509 | |
8bf48f23 PH |
510 | |
511 | def encodeFilename(s, for_subprocess=False): | |
59ae15a5 PH |
512 | """ |
513 | @param s The name of the file | |
514 | """ | |
d77c3dfd | 515 | |
8bf48f23 | 516 | assert type(s) == compat_str |
d77c3dfd | 517 | |
59ae15a5 PH |
518 | # Python 3 has a Unicode API |
519 | if sys.version_info >= (3, 0): | |
520 | return s | |
0f00efed | 521 | |
59ae15a5 PH |
522 | if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5: |
523 | # Pass u'' directly to use Unicode APIs on Windows 2000 and up | |
524 | # (Detecting Windows NT 4 is tricky because 'major >= 4' would | |
525 | # match Windows 9x series as well. Besides, NT 4 is obsolete.) | |
8bf48f23 PH |
526 | if not for_subprocess: |
527 | return s | |
528 | else: | |
529 | # For subprocess calls, encode with locale encoding | |
530 | # Refer to http://stackoverflow.com/a/9951851/35070 | |
531 | encoding = preferredencoding() | |
59ae15a5 | 532 | else: |
6df40dcb | 533 | encoding = sys.getfilesystemencoding() |
8bf48f23 PH |
534 | if encoding is None: |
535 | encoding = 'utf-8' | |
536 | return s.encode(encoding, 'ignore') | |
537 | ||
d77c3dfd | 538 | |
8271226a PH |
539 | def decodeOption(optval): |
540 | if optval is None: | |
541 | return optval | |
542 | if isinstance(optval, bytes): | |
543 | optval = optval.decode(preferredencoding()) | |
544 | ||
545 | assert isinstance(optval, compat_str) | |
546 | return optval | |
1c256f70 | 547 | |
4539dd30 PH |
548 | def formatSeconds(secs): |
549 | if secs > 3600: | |
550 | return '%d:%02d:%02d' % (secs // 3600, (secs % 3600) // 60, secs % 60) | |
551 | elif secs > 60: | |
552 | return '%d:%02d' % (secs // 60, secs % 60) | |
553 | else: | |
554 | return '%d' % secs | |
555 | ||
a0ddb8a2 PH |
556 | |
557 | def make_HTTPS_handler(opts_no_check_certificate, **kwargs): | |
13ebea79 PH |
558 | if sys.version_info < (3, 2): |
559 | import httplib | |
560 | ||
561 | class HTTPSConnectionV3(httplib.HTTPSConnection): | |
562 | def __init__(self, *args, **kwargs): | |
563 | httplib.HTTPSConnection.__init__(self, *args, **kwargs) | |
564 | ||
565 | def connect(self): | |
566 | sock = socket.create_connection((self.host, self.port), self.timeout) | |
ac79fa02 | 567 | if getattr(self, '_tunnel_host', False): |
13ebea79 PH |
568 | self.sock = sock |
569 | self._tunnel() | |
570 | try: | |
571 | self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_SSLv3) | |
de79c46c | 572 | except ssl.SSLError: |
13ebea79 PH |
573 | self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_SSLv23) |
574 | ||
575 | class HTTPSHandlerV3(compat_urllib_request.HTTPSHandler): | |
576 | def https_open(self, req): | |
577 | return self.do_open(HTTPSConnectionV3, req) | |
a0ddb8a2 | 578 | return HTTPSHandlerV3(**kwargs) |
ea6d901e | 579 | else: |
13ebea79 | 580 | context = ssl.SSLContext(ssl.PROTOCOL_SSLv3) |
ea6d901e | 581 | context.verify_mode = (ssl.CERT_NONE |
dca08720 | 582 | if opts_no_check_certificate |
ea6d901e | 583 | else ssl.CERT_REQUIRED) |
303b479e PH |
584 | context.set_default_verify_paths() |
585 | try: | |
586 | context.load_default_certs() | |
587 | except AttributeError: | |
588 | pass # Python < 3.4 | |
a0ddb8a2 | 589 | return compat_urllib_request.HTTPSHandler(context=context, **kwargs) |
ea6d901e | 590 | |
1c256f70 PH |
591 | class ExtractorError(Exception): |
592 | """Error during info extraction.""" | |
2eabb802 | 593 | def __init__(self, msg, tb=None, expected=False, cause=None): |
9a82b238 PH |
594 | """ tb, if given, is the original traceback (so that it can be printed out). |
595 | If expected is set, this is a normal error message and most likely not a bug in youtube-dl. | |
596 | """ | |
597 | ||
598 | if sys.exc_info()[0] in (compat_urllib_error.URLError, socket.timeout, UnavailableVideoError): | |
599 | expected = True | |
600 | if not expected: | |
298f833b | 601 | msg = msg + u'; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.' |
1c256f70 | 602 | super(ExtractorError, self).__init__(msg) |
d5979c5d | 603 | |
1c256f70 | 604 | self.traceback = tb |
8cc83b8d | 605 | self.exc_info = sys.exc_info() # preserve original exception |
2eabb802 | 606 | self.cause = cause |
1c256f70 | 607 | |
01951dda PH |
608 | def format_traceback(self): |
609 | if self.traceback is None: | |
610 | return None | |
611 | return u''.join(traceback.format_tb(self.traceback)) | |
612 | ||
1c256f70 | 613 | |
55b3e45b JMF |
614 | class RegexNotFoundError(ExtractorError): |
615 | """Error when a regex didn't match""" | |
616 | pass | |
617 | ||
618 | ||
d77c3dfd | 619 | class DownloadError(Exception): |
59ae15a5 | 620 | """Download Error exception. |
d77c3dfd | 621 | |
59ae15a5 PH |
622 | This exception may be thrown by FileDownloader objects if they are not |
623 | configured to continue on errors. They will contain the appropriate | |
624 | error message. | |
625 | """ | |
8cc83b8d FV |
626 | def __init__(self, msg, exc_info=None): |
627 | """ exc_info, if given, is the original exception that caused the trouble (as returned by sys.exc_info()). """ | |
628 | super(DownloadError, self).__init__(msg) | |
629 | self.exc_info = exc_info | |
d77c3dfd FV |
630 | |
631 | ||
632 | class SameFileError(Exception): | |
59ae15a5 | 633 | """Same File exception. |
d77c3dfd | 634 | |
59ae15a5 PH |
635 | This exception will be thrown by FileDownloader objects if they detect |
636 | multiple files would have to be downloaded to the same file on disk. | |
637 | """ | |
638 | pass | |
d77c3dfd FV |
639 | |
640 | ||
641 | class PostProcessingError(Exception): | |
59ae15a5 | 642 | """Post Processing exception. |
d77c3dfd | 643 | |
59ae15a5 PH |
644 | This exception may be raised by PostProcessor's .run() method to |
645 | indicate an error in the postprocessing task. | |
646 | """ | |
7851b379 PH |
647 | def __init__(self, msg): |
648 | self.msg = msg | |
d77c3dfd FV |
649 | |
650 | class MaxDownloadsReached(Exception): | |
59ae15a5 PH |
651 | """ --max-downloads limit has been reached. """ |
652 | pass | |
d77c3dfd FV |
653 | |
654 | ||
655 | class UnavailableVideoError(Exception): | |
59ae15a5 | 656 | """Unavailable Format exception. |
d77c3dfd | 657 | |
59ae15a5 PH |
658 | This exception will be thrown when a video is requested |
659 | in a format that is not available for that video. | |
660 | """ | |
661 | pass | |
d77c3dfd FV |
662 | |
663 | ||
664 | class ContentTooShortError(Exception): | |
59ae15a5 | 665 | """Content Too Short exception. |
d77c3dfd | 666 | |
59ae15a5 PH |
667 | This exception may be raised by FileDownloader objects when a file they |
668 | download is too small for what the server announced first, indicating | |
669 | the connection was probably interrupted. | |
670 | """ | |
671 | # Both in bytes | |
672 | downloaded = None | |
673 | expected = None | |
d77c3dfd | 674 | |
59ae15a5 PH |
675 | def __init__(self, downloaded, expected): |
676 | self.downloaded = downloaded | |
677 | self.expected = expected | |
d77c3dfd | 678 | |
acebc9cd | 679 | class YoutubeDLHandler(compat_urllib_request.HTTPHandler): |
59ae15a5 PH |
680 | """Handler for HTTP requests and responses. |
681 | ||
682 | This class, when installed with an OpenerDirector, automatically adds | |
683 | the standard headers to every HTTP request and handles gzipped and | |
684 | deflated responses from web servers. If compression is to be avoided in | |
685 | a particular request, the original request in the program code only has | |
686 | to include the HTTP header "Youtubedl-No-Compression", which will be | |
687 | removed before making the real request. | |
688 | ||
689 | Part of this code was copied from: | |
690 | ||
691 | http://techknack.net/python-urllib2-handlers/ | |
692 | ||
693 | Andrew Rowls, the author of that code, agreed to release it to the | |
694 | public domain. | |
695 | """ | |
696 | ||
697 | @staticmethod | |
698 | def deflate(data): | |
699 | try: | |
700 | return zlib.decompress(data, -zlib.MAX_WBITS) | |
701 | except zlib.error: | |
702 | return zlib.decompress(data) | |
703 | ||
704 | @staticmethod | |
705 | def addinfourl_wrapper(stream, headers, url, code): | |
706 | if hasattr(compat_urllib_request.addinfourl, 'getcode'): | |
707 | return compat_urllib_request.addinfourl(stream, headers, url, code) | |
708 | ret = compat_urllib_request.addinfourl(stream, headers, url) | |
709 | ret.code = code | |
710 | return ret | |
711 | ||
acebc9cd PH |
712 | def http_request(self, req): |
713 | for h,v in std_headers.items(): | |
59ae15a5 PH |
714 | if h in req.headers: |
715 | del req.headers[h] | |
335959e7 | 716 | req.add_header(h, v) |
59ae15a5 PH |
717 | if 'Youtubedl-no-compression' in req.headers: |
718 | if 'Accept-encoding' in req.headers: | |
719 | del req.headers['Accept-encoding'] | |
720 | del req.headers['Youtubedl-no-compression'] | |
3446dfb7 | 721 | if 'Youtubedl-user-agent' in req.headers: |
335959e7 PH |
722 | if 'User-agent' in req.headers: |
723 | del req.headers['User-agent'] | |
724 | req.headers['User-agent'] = req.headers['Youtubedl-user-agent'] | |
3446dfb7 | 725 | del req.headers['Youtubedl-user-agent'] |
59ae15a5 PH |
726 | return req |
727 | ||
acebc9cd | 728 | def http_response(self, req, resp): |
59ae15a5 PH |
729 | old_resp = resp |
730 | # gzip | |
731 | if resp.headers.get('Content-encoding', '') == 'gzip': | |
aa3e9507 PH |
732 | content = resp.read() |
733 | gz = gzip.GzipFile(fileobj=io.BytesIO(content), mode='rb') | |
734 | try: | |
735 | uncompressed = io.BytesIO(gz.read()) | |
736 | except IOError as original_ioerror: | |
737 | # There may be junk add the end of the file | |
738 | # See http://stackoverflow.com/q/4928560/35070 for details | |
739 | for i in range(1, 1024): | |
740 | try: | |
741 | gz = gzip.GzipFile(fileobj=io.BytesIO(content[:-i]), mode='rb') | |
742 | uncompressed = io.BytesIO(gz.read()) | |
743 | except IOError: | |
744 | continue | |
745 | break | |
746 | else: | |
747 | raise original_ioerror | |
748 | resp = self.addinfourl_wrapper(uncompressed, old_resp.headers, old_resp.url, old_resp.code) | |
59ae15a5 PH |
749 | resp.msg = old_resp.msg |
750 | # deflate | |
751 | if resp.headers.get('Content-encoding', '') == 'deflate': | |
752 | gz = io.BytesIO(self.deflate(resp.read())) | |
753 | resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code) | |
754 | resp.msg = old_resp.msg | |
755 | return resp | |
0f8d03f8 | 756 | |
acebc9cd PH |
757 | https_request = http_request |
758 | https_response = http_response | |
bf50b038 | 759 | |
5de90176 | 760 | |
bf50b038 JMF |
761 | def unified_strdate(date_str): |
762 | """Return a string with the date in the format YYYYMMDD""" | |
763 | upload_date = None | |
764 | #Replace commas | |
026fcc04 | 765 | date_str = date_str.replace(',', ' ') |
bf50b038 | 766 | # %z (UTC offset) is only supported in python>=3.2 |
026fcc04 | 767 | date_str = re.sub(r' ?(\+|-)[0-9]{2}:?[0-9]{2}$', '', date_str) |
19e1d359 JMF |
768 | format_expressions = [ |
769 | '%d %B %Y', | |
0f99566c | 770 | '%d %b %Y', |
19e1d359 JMF |
771 | '%B %d %Y', |
772 | '%b %d %Y', | |
773 | '%Y-%m-%d', | |
774 | '%d/%m/%Y', | |
775 | '%Y/%m/%d %H:%M:%S', | |
5d73273f | 776 | '%Y-%m-%d %H:%M:%S', |
19e1d359 JMF |
777 | '%d.%m.%Y %H:%M', |
778 | '%Y-%m-%dT%H:%M:%SZ', | |
59040888 PH |
779 | '%Y-%m-%dT%H:%M:%S.%fZ', |
780 | '%Y-%m-%dT%H:%M:%S.%f0Z', | |
2e1fa03b | 781 | '%Y-%m-%dT%H:%M:%S', |
7ff5d5c2 | 782 | '%Y-%m-%dT%H:%M:%S.%f', |
5de90176 | 783 | '%Y-%m-%dT%H:%M', |
19e1d359 | 784 | ] |
bf50b038 JMF |
785 | for expression in format_expressions: |
786 | try: | |
787 | upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d') | |
5de90176 | 788 | except ValueError: |
bf50b038 | 789 | pass |
42393ce2 PH |
790 | if upload_date is None: |
791 | timetuple = email.utils.parsedate_tz(date_str) | |
792 | if timetuple: | |
793 | upload_date = datetime.datetime(*timetuple[:6]).strftime('%Y%m%d') | |
bf50b038 JMF |
794 | return upload_date |
795 | ||
cbdbb766 | 796 | def determine_ext(url, default_ext=u'unknown_video'): |
73e79f2a PH |
797 | guess = url.partition(u'?')[0].rpartition(u'.')[2] |
798 | if re.match(r'^[A-Za-z0-9]+$', guess): | |
799 | return guess | |
800 | else: | |
cbdbb766 | 801 | return default_ext |
73e79f2a | 802 | |
d4051a8e JMF |
803 | def subtitles_filename(filename, sub_lang, sub_format): |
804 | return filename.rsplit('.', 1)[0] + u'.' + sub_lang + u'.' + sub_format | |
805 | ||
bd558525 | 806 | def date_from_str(date_str): |
37254abc JMF |
807 | """ |
808 | Return a datetime object from a string in the format YYYYMMDD or | |
809 | (now|today)[+-][0-9](day|week|month|year)(s)?""" | |
810 | today = datetime.date.today() | |
811 | if date_str == 'now'or date_str == 'today': | |
812 | return today | |
813 | match = re.match('(now|today)(?P<sign>[+-])(?P<time>\d+)(?P<unit>day|week|month|year)(s)?', date_str) | |
814 | if match is not None: | |
815 | sign = match.group('sign') | |
816 | time = int(match.group('time')) | |
817 | if sign == '-': | |
818 | time = -time | |
819 | unit = match.group('unit') | |
820 | #A bad aproximation? | |
821 | if unit == 'month': | |
822 | unit = 'day' | |
823 | time *= 30 | |
824 | elif unit == 'year': | |
825 | unit = 'day' | |
826 | time *= 365 | |
827 | unit += 's' | |
828 | delta = datetime.timedelta(**{unit: time}) | |
829 | return today + delta | |
bd558525 JMF |
830 | return datetime.datetime.strptime(date_str, "%Y%m%d").date() |
831 | ||
e63fc1be | 832 | def hyphenate_date(date_str): |
833 | """ | |
834 | Convert a date in 'YYYYMMDD' format to 'YYYY-MM-DD' format""" | |
835 | match = re.match(r'^(\d\d\d\d)(\d\d)(\d\d)$', date_str) | |
836 | if match is not None: | |
837 | return '-'.join(match.groups()) | |
838 | else: | |
839 | return date_str | |
840 | ||
bd558525 JMF |
841 | class DateRange(object): |
842 | """Represents a time interval between two dates""" | |
843 | def __init__(self, start=None, end=None): | |
844 | """start and end must be strings in the format accepted by date""" | |
845 | if start is not None: | |
846 | self.start = date_from_str(start) | |
847 | else: | |
848 | self.start = datetime.datetime.min.date() | |
849 | if end is not None: | |
850 | self.end = date_from_str(end) | |
851 | else: | |
852 | self.end = datetime.datetime.max.date() | |
37254abc | 853 | if self.start > self.end: |
bd558525 JMF |
854 | raise ValueError('Date range: "%s" , the start date must be before the end date' % self) |
855 | @classmethod | |
856 | def day(cls, day): | |
857 | """Returns a range that only contains the given day""" | |
858 | return cls(day,day) | |
859 | def __contains__(self, date): | |
860 | """Check if the date is in the range""" | |
37254abc JMF |
861 | if not isinstance(date, datetime.date): |
862 | date = date_from_str(date) | |
863 | return self.start <= date <= self.end | |
bd558525 JMF |
864 | def __str__(self): |
865 | return '%s - %s' % ( self.start.isoformat(), self.end.isoformat()) | |
c496ca96 PH |
866 | |
867 | ||
868 | def platform_name(): | |
869 | """ Returns the platform name as a compat_str """ | |
870 | res = platform.platform() | |
871 | if isinstance(res, bytes): | |
872 | res = res.decode(preferredencoding()) | |
873 | ||
874 | assert isinstance(res, compat_str) | |
875 | return res | |
c257baff PH |
876 | |
877 | ||
7459e3a2 PH |
878 | def write_string(s, out=None): |
879 | if out is None: | |
880 | out = sys.stderr | |
8bf48f23 | 881 | assert type(s) == compat_str |
7459e3a2 PH |
882 | |
883 | if ('b' in getattr(out, 'mode', '') or | |
884 | sys.version_info[0] < 3): # Python 2 lies about mode of sys.stderr | |
885 | s = s.encode(preferredencoding(), 'ignore') | |
8bf48f23 PH |
886 | try: |
887 | out.write(s) | |
888 | except UnicodeEncodeError: | |
889 | # In Windows shells, this can fail even when the codec is just charmap!? | |
890 | # See https://wiki.python.org/moin/PrintFails#Issue | |
891 | if sys.platform == 'win32' and hasattr(out, 'encoding'): | |
892 | s = s.encode(out.encoding, 'ignore').decode(out.encoding) | |
893 | out.write(s) | |
894 | else: | |
895 | raise | |
896 | ||
7459e3a2 PH |
897 | out.flush() |
898 | ||
899 | ||
48ea9cea PH |
900 | def bytes_to_intlist(bs): |
901 | if not bs: | |
902 | return [] | |
903 | if isinstance(bs[0], int): # Python 3 | |
904 | return list(bs) | |
905 | else: | |
906 | return [ord(c) for c in bs] | |
907 | ||
c257baff | 908 | |
cba892fa | 909 | def intlist_to_bytes(xs): |
910 | if not xs: | |
911 | return b'' | |
912 | if isinstance(chr(0), bytes): # Python 2 | |
913 | return ''.join([chr(x) for x in xs]) | |
914 | else: | |
915 | return bytes(xs) | |
c38b1e77 PH |
916 | |
917 | ||
918 | def get_cachedir(params={}): | |
919 | cache_root = os.environ.get('XDG_CACHE_HOME', | |
920 | os.path.expanduser('~/.cache')) | |
921 | return params.get('cachedir', os.path.join(cache_root, 'youtube-dl')) | |
c1c9a79c PH |
922 | |
923 | ||
924 | # Cross-platform file locking | |
925 | if sys.platform == 'win32': | |
926 | import ctypes.wintypes | |
927 | import msvcrt | |
928 | ||
929 | class OVERLAPPED(ctypes.Structure): | |
930 | _fields_ = [ | |
931 | ('Internal', ctypes.wintypes.LPVOID), | |
932 | ('InternalHigh', ctypes.wintypes.LPVOID), | |
933 | ('Offset', ctypes.wintypes.DWORD), | |
934 | ('OffsetHigh', ctypes.wintypes.DWORD), | |
935 | ('hEvent', ctypes.wintypes.HANDLE), | |
936 | ] | |
937 | ||
938 | kernel32 = ctypes.windll.kernel32 | |
939 | LockFileEx = kernel32.LockFileEx | |
940 | LockFileEx.argtypes = [ | |
941 | ctypes.wintypes.HANDLE, # hFile | |
942 | ctypes.wintypes.DWORD, # dwFlags | |
943 | ctypes.wintypes.DWORD, # dwReserved | |
944 | ctypes.wintypes.DWORD, # nNumberOfBytesToLockLow | |
945 | ctypes.wintypes.DWORD, # nNumberOfBytesToLockHigh | |
946 | ctypes.POINTER(OVERLAPPED) # Overlapped | |
947 | ] | |
948 | LockFileEx.restype = ctypes.wintypes.BOOL | |
949 | UnlockFileEx = kernel32.UnlockFileEx | |
950 | UnlockFileEx.argtypes = [ | |
951 | ctypes.wintypes.HANDLE, # hFile | |
952 | ctypes.wintypes.DWORD, # dwReserved | |
953 | ctypes.wintypes.DWORD, # nNumberOfBytesToLockLow | |
954 | ctypes.wintypes.DWORD, # nNumberOfBytesToLockHigh | |
955 | ctypes.POINTER(OVERLAPPED) # Overlapped | |
956 | ] | |
957 | UnlockFileEx.restype = ctypes.wintypes.BOOL | |
958 | whole_low = 0xffffffff | |
959 | whole_high = 0x7fffffff | |
960 | ||
961 | def _lock_file(f, exclusive): | |
962 | overlapped = OVERLAPPED() | |
963 | overlapped.Offset = 0 | |
964 | overlapped.OffsetHigh = 0 | |
965 | overlapped.hEvent = 0 | |
966 | f._lock_file_overlapped_p = ctypes.pointer(overlapped) | |
967 | handle = msvcrt.get_osfhandle(f.fileno()) | |
968 | if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0, | |
969 | whole_low, whole_high, f._lock_file_overlapped_p): | |
970 | raise OSError('Locking file failed: %r' % ctypes.FormatError()) | |
971 | ||
972 | def _unlock_file(f): | |
973 | assert f._lock_file_overlapped_p | |
974 | handle = msvcrt.get_osfhandle(f.fileno()) | |
975 | if not UnlockFileEx(handle, 0, | |
976 | whole_low, whole_high, f._lock_file_overlapped_p): | |
977 | raise OSError('Unlocking file failed: %r' % ctypes.FormatError()) | |
978 | ||
979 | else: | |
980 | import fcntl | |
981 | ||
982 | def _lock_file(f, exclusive): | |
983 | fcntl.lockf(f, fcntl.LOCK_EX if exclusive else fcntl.LOCK_SH) | |
984 | ||
985 | def _unlock_file(f): | |
986 | fcntl.lockf(f, fcntl.LOCK_UN) | |
987 | ||
988 | ||
989 | class locked_file(object): | |
990 | def __init__(self, filename, mode, encoding=None): | |
991 | assert mode in ['r', 'a', 'w'] | |
992 | self.f = io.open(filename, mode, encoding=encoding) | |
993 | self.mode = mode | |
994 | ||
995 | def __enter__(self): | |
996 | exclusive = self.mode != 'r' | |
997 | try: | |
998 | _lock_file(self.f, exclusive) | |
999 | except IOError: | |
1000 | self.f.close() | |
1001 | raise | |
1002 | return self | |
1003 | ||
1004 | def __exit__(self, etype, value, traceback): | |
1005 | try: | |
1006 | _unlock_file(self.f) | |
1007 | finally: | |
1008 | self.f.close() | |
1009 | ||
1010 | def __iter__(self): | |
1011 | return iter(self.f) | |
1012 | ||
1013 | def write(self, *args): | |
1014 | return self.f.write(*args) | |
1015 | ||
1016 | def read(self, *args): | |
1017 | return self.f.read(*args) | |
4eb7f1d1 JMF |
1018 | |
1019 | ||
1020 | def shell_quote(args): | |
a6a173c2 JMF |
1021 | quoted_args = [] |
1022 | encoding = sys.getfilesystemencoding() | |
1023 | if encoding is None: | |
1024 | encoding = 'utf-8' | |
1025 | for a in args: | |
1026 | if isinstance(a, bytes): | |
1027 | # We may get a filename encoded with 'encodeFilename' | |
1028 | a = a.decode(encoding) | |
1029 | quoted_args.append(pipes.quote(a)) | |
1030 | return u' '.join(quoted_args) | |
9d4660ca PH |
1031 | |
1032 | ||
f4d96df0 PH |
1033 | def takewhile_inclusive(pred, seq): |
1034 | """ Like itertools.takewhile, but include the latest evaluated element | |
1035 | (the first element so that Not pred(e)) """ | |
1036 | for e in seq: | |
1037 | yield e | |
1038 | if not pred(e): | |
1039 | return | |
1040 | ||
1041 | ||
9d4660ca PH |
1042 | def smuggle_url(url, data): |
1043 | """ Pass additional data in a URL for internal use. """ | |
1044 | ||
1045 | sdata = compat_urllib_parse.urlencode( | |
1046 | {u'__youtubedl_smuggle': json.dumps(data)}) | |
1047 | return url + u'#' + sdata | |
1048 | ||
1049 | ||
79f82953 | 1050 | def unsmuggle_url(smug_url, default=None): |
9d4660ca | 1051 | if not '#__youtubedl_smuggle' in smug_url: |
79f82953 | 1052 | return smug_url, default |
9d4660ca PH |
1053 | url, _, sdata = smug_url.rpartition(u'#') |
1054 | jsond = compat_parse_qs(sdata)[u'__youtubedl_smuggle'][0] | |
1055 | data = json.loads(jsond) | |
1056 | return url, data | |
02dbf93f PH |
1057 | |
1058 | ||
02dbf93f PH |
1059 | def format_bytes(bytes): |
1060 | if bytes is None: | |
1061 | return u'N/A' | |
1062 | if type(bytes) is str: | |
1063 | bytes = float(bytes) | |
1064 | if bytes == 0.0: | |
1065 | exponent = 0 | |
1066 | else: | |
1067 | exponent = int(math.log(bytes, 1024.0)) | |
1068 | suffix = [u'B', u'KiB', u'MiB', u'GiB', u'TiB', u'PiB', u'EiB', u'ZiB', u'YiB'][exponent] | |
1069 | converted = float(bytes) / float(1024 ** exponent) | |
1070 | return u'%.2f%s' % (converted, suffix) | |
f53c966a | 1071 | |
1c088fa8 | 1072 | |
f53c966a JMF |
1073 | def str_to_int(int_str): |
1074 | int_str = re.sub(r'[,\.]', u'', int_str) | |
1075 | return int(int_str) | |
1c088fa8 PH |
1076 | |
1077 | ||
1078 | def get_term_width(): | |
1079 | columns = os.environ.get('COLUMNS', None) | |
1080 | if columns: | |
1081 | return int(columns) | |
1082 | ||
1083 | try: | |
1084 | sp = subprocess.Popen( | |
1085 | ['stty', 'size'], | |
1086 | stdout=subprocess.PIPE, stderr=subprocess.PIPE) | |
1087 | out, err = sp.communicate() | |
1088 | return int(out.split()[1]) | |
1089 | except: | |
1090 | pass | |
1091 | return None | |
caefb1de PH |
1092 | |
1093 | ||
1094 | def month_by_name(name): | |
1095 | """ Return the number of a month by (locale-independently) English name """ | |
1096 | ||
1097 | ENGLISH_NAMES = [ | |
dadb8184 | 1098 | u'January', u'February', u'March', u'April', u'May', u'June', |
caefb1de PH |
1099 | u'July', u'August', u'September', u'October', u'November', u'December'] |
1100 | try: | |
1101 | return ENGLISH_NAMES.index(name) + 1 | |
1102 | except ValueError: | |
1103 | return None | |
18258362 JMF |
1104 | |
1105 | ||
5aafe895 | 1106 | def fix_xml_ampersands(xml_str): |
18258362 | 1107 | """Replace all the '&' by '&' in XML""" |
5aafe895 PH |
1108 | return re.sub( |
1109 | r'&(?!amp;|lt;|gt;|apos;|quot;|#x[0-9a-fA-F]{,4};|#[0-9]{,4};)', | |
1110 | u'&', | |
1111 | xml_str) | |
e3946f98 PH |
1112 | |
1113 | ||
1114 | def setproctitle(title): | |
8bf48f23 | 1115 | assert isinstance(title, compat_str) |
e3946f98 PH |
1116 | try: |
1117 | libc = ctypes.cdll.LoadLibrary("libc.so.6") | |
1118 | except OSError: | |
1119 | return | |
1120 | title = title | |
1121 | buf = ctypes.create_string_buffer(len(title) + 1) | |
e64eaaa9 | 1122 | buf.value = title.encode('utf-8') |
e3946f98 PH |
1123 | try: |
1124 | libc.prctl(15, ctypes.byref(buf), 0, 0, 0) | |
1125 | except AttributeError: | |
1126 | return # Strange libc, just skip this | |
d7dda168 PH |
1127 | |
1128 | ||
1129 | def remove_start(s, start): | |
1130 | if s.startswith(start): | |
1131 | return s[len(start):] | |
1132 | return s | |
29eb5174 PH |
1133 | |
1134 | ||
1135 | def url_basename(url): | |
9b8aaeed JMF |
1136 | path = compat_urlparse.urlparse(url).path |
1137 | return path.strip(u'/').split(u'/')[-1] | |
aa94a6d3 PH |
1138 | |
1139 | ||
1140 | class HEADRequest(compat_urllib_request.Request): | |
1141 | def get_method(self): | |
1142 | return "HEAD" | |
7217e148 PH |
1143 | |
1144 | ||
dd27fd17 PH |
1145 | def int_or_none(v, scale=1): |
1146 | return v if v is None else (int(v) // scale) | |
608d11f5 PH |
1147 | |
1148 | ||
1149 | def parse_duration(s): | |
1150 | if s is None: | |
1151 | return None | |
1152 | ||
1153 | m = re.match( | |
2db806b4 | 1154 | r'(?:(?:(?P<hours>[0-9]+)[:h])?(?P<mins>[0-9]+)[:m])?(?P<secs>[0-9]+)s?$', s) |
608d11f5 PH |
1155 | if not m: |
1156 | return None | |
1157 | res = int(m.group('secs')) | |
1158 | if m.group('mins'): | |
1159 | res += int(m.group('mins')) * 60 | |
1160 | if m.group('hours'): | |
1161 | res += int(m.group('hours')) * 60 * 60 | |
1162 | return res | |
91d7d0b3 JMF |
1163 | |
1164 | ||
1165 | def prepend_extension(filename, ext): | |
1166 | name, real_ext = os.path.splitext(filename) | |
1167 | return u'{0}.{1}{2}'.format(name, ext, real_ext) | |
d70ad093 PH |
1168 | |
1169 | ||
1170 | def check_executable(exe, args=[]): | |
1171 | """ Checks if the given binary is installed somewhere in PATH, and returns its name. | |
1172 | args can be a list of arguments for a short output (like -version) """ | |
1173 | try: | |
1174 | subprocess.Popen([exe] + args, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate() | |
1175 | except OSError: | |
1176 | return False | |
1177 | return exe | |
b7ab0590 PH |
1178 | |
1179 | ||
1180 | class PagedList(object): | |
1181 | def __init__(self, pagefunc, pagesize): | |
1182 | self._pagefunc = pagefunc | |
1183 | self._pagesize = pagesize | |
1184 | ||
dd26ced1 PH |
1185 | def __len__(self): |
1186 | # This is only useful for tests | |
1187 | return len(self.getslice()) | |
1188 | ||
b7ab0590 PH |
1189 | def getslice(self, start=0, end=None): |
1190 | res = [] | |
1191 | for pagenum in itertools.count(start // self._pagesize): | |
1192 | firstid = pagenum * self._pagesize | |
1193 | nextfirstid = pagenum * self._pagesize + self._pagesize | |
1194 | if start >= nextfirstid: | |
1195 | continue | |
1196 | ||
1197 | page_results = list(self._pagefunc(pagenum)) | |
1198 | ||
1199 | startv = ( | |
1200 | start % self._pagesize | |
1201 | if firstid <= start < nextfirstid | |
1202 | else 0) | |
1203 | ||
1204 | endv = ( | |
1205 | ((end - 1) % self._pagesize) + 1 | |
1206 | if (end is not None and firstid <= end <= nextfirstid) | |
1207 | else None) | |
1208 | ||
1209 | if startv != 0 or endv is not None: | |
1210 | page_results = page_results[startv:endv] | |
1211 | res.extend(page_results) | |
1212 | ||
1213 | # A little optimization - if current page is not "full", ie. does | |
1214 | # not contain page_size videos then we can assume that this page | |
1215 | # is the last one - there are no more ids on further pages - | |
1216 | # i.e. no need to query again. | |
1217 | if len(page_results) + startv < self._pagesize: | |
1218 | break | |
1219 | ||
1220 | # If we got the whole page, but the next page is not interesting, | |
1221 | # break out early as well | |
1222 | if end == nextfirstid: | |
1223 | break | |
1224 | return res | |
81c2f20b PH |
1225 | |
1226 | ||
1227 | def uppercase_escape(s): | |
1228 | return re.sub( | |
1229 | r'\\U([0-9a-fA-F]{8})', | |
1230 | lambda m: compat_chr(int(m.group(1), base=16)), s) | |
b53466e1 PH |
1231 | |
1232 | try: | |
1233 | struct.pack(u'!I', 0) | |
1234 | except TypeError: | |
1235 | # In Python 2.6 (and some 2.7 versions), struct requires a bytes argument | |
1236 | def struct_pack(spec, *args): | |
1237 | if isinstance(spec, compat_str): | |
1238 | spec = spec.encode('ascii') | |
1239 | return struct.pack(spec, *args) | |
1240 | ||
1241 | def struct_unpack(spec, *args): | |
1242 | if isinstance(spec, compat_str): | |
1243 | spec = spec.encode('ascii') | |
1244 | return struct.unpack(spec, *args) | |
1245 | else: | |
1246 | struct_pack = struct.pack | |
1247 | struct_unpack = struct.unpack |