debian/changelog: Annotate closed bugs.

[youtubedl] / youtube_dl / utils.py

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 67a847ebad8238fc4f368f46b336b80e6caa3673..2843a3dc06be1b7b4d27ecf6678cb0ebdb971070 100644 (file)
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -11,6 +11,7 @@ import contextlib
 import ctypes
 import datetime
 import email.utils
 import ctypes
 import datetime
 import email.utils

+import email.header

 import errno
 import functools
 import gzip
 import errno
 import functools
 import gzip


@@ -21,8 +22,8 @@ import locale
 import math
 import operator
 import os
 import math
 import operator
 import os

-import pipes

 import platform
 import platform

+import random

 import re
 import socket
 import ssl
 import re
 import socket
 import ssl


@@ -34,10 +35,12 @@ import xml.etree.ElementTree
 import zlib
 
 from .compat import (
 import zlib
 
 from .compat import (

+    compat_HTMLParseError,

     compat_HTMLParser,
     compat_basestring,
     compat_chr,
     compat_etree_fromstring,
     compat_HTMLParser,
     compat_basestring,
     compat_chr,
     compat_etree_fromstring,

+    compat_expanduser,

     compat_html_entities,
     compat_html_entities_html5,
     compat_http_client,
     compat_html_entities,
     compat_html_entities_html5,
     compat_http_client,


@@ -156,6 +159,8 @@ DATE_FORMATS = (
     '%Y-%m-%dT%H:%M',
     '%b %d %Y at %H:%M',
     '%b %d %Y at %H:%M:%S',
     '%Y-%m-%dT%H:%M',
     '%b %d %Y at %H:%M',
     '%b %d %Y at %H:%M:%S',

+    '%B %d %Y at %H:%M',
+    '%B %d %Y at %H:%M:%S',

 )
 
 DATE_FORMATS_DAY_FIRST = list(DATE_FORMATS)
 )
 
 DATE_FORMATS_DAY_FIRST = list(DATE_FORMATS)


@@ -337,34 +342,46 @@ def get_element_by_id(id, html):
 
 
 def get_element_by_class(class_name, html):
 
 
 def get_element_by_class(class_name, html):

-    return get_element_by_attribute(
+    """Return the content of the first tag with the specified class in the passed HTML document"""
+    retval = get_elements_by_class(class_name, html)
+    return retval[0] if retval else None
+
+
+def get_element_by_attribute(attribute, value, html, escape_value=True):
+    retval = get_elements_by_attribute(attribute, value, html, escape_value)
+    return retval[0] if retval else None
+
+
+def get_elements_by_class(class_name, html):
+    """Return the content of all tags with the specified class in the passed HTML document as a list"""
+    return get_elements_by_attribute(

         'class', r'[^\'"]*\b%s\b[^\'"]*' % re.escape(class_name),
         html, escape_value=False)
 
 
         'class', r'[^\'"]*\b%s\b[^\'"]*' % re.escape(class_name),
         html, escape_value=False)
 
 

-def get_element_by_attribute(attribute, value, html, escape_value=True):
+def get_elements_by_attribute(attribute, value, html, escape_value=True):

     """Return the content of the tag with the specified attribute in the passed HTML document"""
 
     value = re.escape(value) if escape_value else value
 
     """Return the content of the tag with the specified attribute in the passed HTML document"""
 
     value = re.escape(value) if escape_value else value
 

-    m = re.search(r'''(?xs)
+    retlist = []
+    for m in re.finditer(r'''(?xs)

         <([a-zA-Z0-9:._-]+)
         <([a-zA-Z0-9:._-]+)

-         (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]*|="[^"]*"|='[^']*'))*?
+         (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]*|="[^"]*"|='[^']*'|))*?

          \s+%s=['"]?%s['"]?
          \s+%s=['"]?%s['"]?

-         (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]*|="[^"]*"|='[^']*'))*?
+         (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]*|="[^"]*"|='[^']*'|))*?

         \s*>
         (?P<content>.*?)
         </\1>
         \s*>
         (?P<content>.*?)
         </\1>

-    ''' % (re.escape(attribute), value), html)
+    ''' % (re.escape(attribute), value), html):
+        res = m.group('content')

 
 

-    if not m:
-        return None
-    res = m.group('content')
+        if res.startswith('"') or res.startswith("'"):
+            res = res[1:-1]

 
 

-    if res.startswith('"') or res.startswith("'"):
-        res = res[1:-1]
+        retlist.append(unescapeHTML(res))

 
 

-    return unescapeHTML(res)
+    return retlist

 
 
 class HTMLAttributeParser(compat_HTMLParser):
 
 
 class HTMLAttributeParser(compat_HTMLParser):


@@ -394,8 +411,12 @@ def extract_attributes(html_element):
     but the cases in the unit test will work for all of 2.6, 2.7, 3.2-3.5.
     """
     parser = HTMLAttributeParser()
     but the cases in the unit test will work for all of 2.6, 2.7, 3.2-3.5.
     """
     parser = HTMLAttributeParser()

-    parser.feed(html_element)
-    parser.close()
+    try:
+        parser.feed(html_element)
+        parser.close()
+    # Older Python may throw HTMLParseError in case of malformed HTML
+    except compat_HTMLParseError:
+        pass

     return parser.attrs
 
 
     return parser.attrs
 
 


@@ -407,8 +428,8 @@ def clean_html(html):
 
     # Newline vs <br />
     html = html.replace('\n', ' ')
 
     # Newline vs <br />
     html = html.replace('\n', ' ')

-    html = re.sub(r'\s*<\s*br\s*/?\s*>\s*', '\n', html)
-    html = re.sub(r'<\s*/\s*p\s*>\s*<\s*p[^>]*>', '\n', html)
+    html = re.sub(r'(?u)\s*<\s*br\s*/?\s*>\s*', '\n', html)
+    html = re.sub(r'(?u)<\s*/\s*p\s*>\s*<\s*p[^>]*>', '\n', html)

     # Strip html tags
     html = re.sub('<.*?>', '', html)
     # Replace html entities
     # Strip html tags
     html = re.sub('<.*?>', '', html)
     # Replace html entities


@@ -460,7 +481,8 @@ def timeconvert(timestr):
 def sanitize_filename(s, restricted=False, is_id=False):
     """Sanitizes a string so it could be used as part of a filename.
     If restricted is set, use a stricter subset of allowed characters.
 def sanitize_filename(s, restricted=False, is_id=False):
     """Sanitizes a string so it could be used as part of a filename.
     If restricted is set, use a stricter subset of allowed characters.

-    Set is_id if this is not an arbitrary string, but an ID that should be kept if possible
+    Set is_id if this is not an arbitrary string, but an ID that should be kept
+    if possible.

     """
     def replace_insane(char):
         if restricted and char in ACCENT_CHARS:
     """
     def replace_insane(char):
         if restricted and char in ACCENT_CHARS:


@@ -525,6 +547,11 @@ def sanitized_Request(url, *args, **kwargs):
     return compat_urllib_request.Request(sanitize_url(url), *args, **kwargs)
 
 
     return compat_urllib_request.Request(sanitize_url(url), *args, **kwargs)
 
 

+def expand_path(s):
+    """Expand shell variables and ~"""
+    return os.path.expandvars(compat_expanduser(s))
+
+

 def orderedSet(iterable):
     """ Remove all duplicates from the input iterable """
     res = []
 def orderedSet(iterable):
     """ Remove all duplicates from the input iterable """
     res = []


@@ -571,7 +598,7 @@ def unescapeHTML(s):
     assert type(s) == compat_str
 
     return re.sub(
     assert type(s) == compat_str
 
     return re.sub(

-        r'&([^;]+;)', lambda m: _htmlentity_transform(m.group(1)), s)
+        r'&([^&;]+;)', lambda m: _htmlentity_transform(m.group(1)), s)

 
 
 def get_subprocess_encoding():
 
 
 def get_subprocess_encoding():


@@ -689,7 +716,12 @@ def bug_reports_message():
     return msg
 
 
     return msg
 
 

-class ExtractorError(Exception):
+class YoutubeDLError(Exception):
+    """Base exception for YoutubeDL errors."""
+    pass
+
+
+class ExtractorError(YoutubeDLError):

     """Error during info extraction."""
 
     def __init__(self, msg, tb=None, expected=False, cause=None, video_id=None):
     """Error during info extraction."""
 
     def __init__(self, msg, tb=None, expected=False, cause=None, video_id=None):


@@ -730,7 +762,19 @@ class RegexNotFoundError(ExtractorError):
     pass
 
 
     pass
 
 

-class DownloadError(Exception):
+class GeoRestrictedError(ExtractorError):
+    """Geographic restriction Error exception.
+
+    This exception may be thrown when a video is not available from your
+    geographic location due to geographic restrictions imposed by a website.
+    """
+    def __init__(self, msg, countries=None):
+        super(GeoRestrictedError, self).__init__(msg, expected=True)
+        self.msg = msg
+        self.countries = countries
+
+
+class DownloadError(YoutubeDLError):

     """Download Error exception.
 
     This exception may be thrown by FileDownloader objects if they are not
     """Download Error exception.
 
     This exception may be thrown by FileDownloader objects if they are not


@@ -744,7 +788,7 @@ class DownloadError(Exception):
         self.exc_info = exc_info
 
 
         self.exc_info = exc_info
 
 

-class SameFileError(Exception):
+class SameFileError(YoutubeDLError):

     """Same File exception.
 
     This exception will be thrown by FileDownloader objects if they detect
     """Same File exception.
 
     This exception will be thrown by FileDownloader objects if they detect


@@ -753,7 +797,7 @@ class SameFileError(Exception):
     pass
 
 
     pass
 
 

-class PostProcessingError(Exception):
+class PostProcessingError(YoutubeDLError):

     """Post Processing exception.
 
     This exception may be raised by PostProcessor's .run() method to
     """Post Processing exception.
 
     This exception may be raised by PostProcessor's .run() method to


@@ -761,15 +805,16 @@ class PostProcessingError(Exception):
     """
 
     def __init__(self, msg):
     """
 
     def __init__(self, msg):

+        super(PostProcessingError, self).__init__(msg)

         self.msg = msg
 
 
         self.msg = msg
 
 

-class MaxDownloadsReached(Exception):
+class MaxDownloadsReached(YoutubeDLError):

     """ --max-downloads limit has been reached. """
     pass
 
 
     """ --max-downloads limit has been reached. """
     pass
 
 

-class UnavailableVideoError(Exception):
+class UnavailableVideoError(YoutubeDLError):

     """Unavailable Format exception.
 
     This exception will be thrown when a video is requested
     """Unavailable Format exception.
 
     This exception will be thrown when a video is requested


@@ -778,7 +823,7 @@ class UnavailableVideoError(Exception):
     pass
 
 
     pass
 
 

-class ContentTooShortError(Exception):
+class ContentTooShortError(YoutubeDLError):

     """Content Too Short exception.
 
     This exception may be raised by FileDownloader objects when a file they
     """Content Too Short exception.
 
     This exception may be raised by FileDownloader objects when a file they


@@ -787,12 +832,15 @@ class ContentTooShortError(Exception):
     """
 
     def __init__(self, downloaded, expected):
     """
 
     def __init__(self, downloaded, expected):

+        super(ContentTooShortError, self).__init__(
+            'Downloaded {0} bytes, expected {1} bytes'.format(downloaded, expected)
+        )

         # Both in bytes
         self.downloaded = downloaded
         self.expected = expected
 
 
         # Both in bytes
         self.downloaded = downloaded
         self.expected = expected
 
 

-class XAttrMetadataError(Exception):
+class XAttrMetadataError(YoutubeDLError):

     def __init__(self, code=None, msg='Unknown error'):
         super(XAttrMetadataError, self).__init__(msg)
         self.code = code
     def __init__(self, code=None, msg='Unknown error'):
         super(XAttrMetadataError, self).__init__(msg)
         self.code = code


@@ -808,7 +856,7 @@ class XAttrMetadataError(Exception):
             self.reason = 'NOT_SUPPORTED'
 
 
             self.reason = 'NOT_SUPPORTED'
 
 

-class XAttrUnavailableError(Exception):
+class XAttrUnavailableError(YoutubeDLError):

     pass
 
 
     pass
 
 


@@ -890,14 +938,6 @@ class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
         except zlib.error:
             return zlib.decompress(data)
 
         except zlib.error:
             return zlib.decompress(data)
 

-    @staticmethod
-    def addinfourl_wrapper(stream, headers, url, code):
-        if hasattr(compat_urllib_request.addinfourl, 'getcode'):
-            return compat_urllib_request.addinfourl(stream, headers, url, code)
-        ret = compat_urllib_request.addinfourl(stream, headers, url)
-        ret.code = code
-        return ret
-

     def http_request(self, req):
         # According to RFC 3986, URLs can not contain non-ASCII characters, however this is not
         # always respected by websites, some tend to give out URLs with non percent-encoded
     def http_request(self, req):
         # According to RFC 3986, URLs can not contain non-ASCII characters, however this is not
         # always respected by websites, some tend to give out URLs with non percent-encoded


@@ -949,13 +989,13 @@ class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
                     break
                 else:
                     raise original_ioerror
                     break
                 else:
                     raise original_ioerror

-            resp = self.addinfourl_wrapper(uncompressed, old_resp.headers, old_resp.url, old_resp.code)
+            resp = compat_urllib_request.addinfourl(uncompressed, old_resp.headers, old_resp.url, old_resp.code)

             resp.msg = old_resp.msg
             del resp.headers['Content-encoding']
         # deflate
         if resp.headers.get('Content-encoding', '') == 'deflate':
             gz = io.BytesIO(self.deflate(resp.read()))
             resp.msg = old_resp.msg
             del resp.headers['Content-encoding']
         # deflate
         if resp.headers.get('Content-encoding', '') == 'deflate':
             gz = io.BytesIO(self.deflate(resp.read()))

-            resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
+            resp = compat_urllib_request.addinfourl(gz, old_resp.headers, old_resp.url, old_resp.code)

             resp.msg = old_resp.msg
             del resp.headers['Content-encoding']
         # Percent-encode redirect URL of Location HTTP header to satisfy RFC 3986 (see
             resp.msg = old_resp.msg
             del resp.headers['Content-encoding']
         # Percent-encode redirect URL of Location HTTP header to satisfy RFC 3986 (see


@@ -1145,7 +1185,7 @@ def unified_timestamp(date_str, day_first=True):
     if date_str is None:
         return None
 
     if date_str is None:
         return None
 

-    date_str = date_str.replace(',', ' ')
+    date_str = re.sub(r'[,|]', '', date_str)

 
     pm_delta = 12 if re.search(r'(?i)PM', date_str) else 0
     timezone, date_str = extract_timezone(date_str)
 
     pm_delta = 12 if re.search(r'(?i)PM', date_str) else 0
     timezone, date_str = extract_timezone(date_str)


@@ -1153,6 +1193,11 @@ def unified_timestamp(date_str, day_first=True):
     # Remove AM/PM + timezone
     date_str = re.sub(r'(?i)\s*(?:AM|PM)(?:\s+[A-Z]+)?', '', date_str)
 
     # Remove AM/PM + timezone
     date_str = re.sub(r'(?i)\s*(?:AM|PM)(?:\s+[A-Z]+)?', '', date_str)
 

+    # Remove unrecognized timezones from ISO 8601 alike timestamps
+    m = re.search(r'\d{1,2}:\d{1,2}(?:\.\d+)?(?P<tz>\s*[A-Z]+)$', date_str)
+    if m:
+        date_str = date_str[:-len(m.group('tz'))]
+

     for expression in date_formats(day_first):
         try:
             dt = datetime.datetime.strptime(date_str, expression) - timezone + datetime.timedelta(hours=pm_delta)
     for expression in date_formats(day_first):
         try:
             dt = datetime.datetime.strptime(date_str, expression) - timezone + datetime.timedelta(hours=pm_delta)


@@ -1491,7 +1536,7 @@ def shell_quote(args):
         if isinstance(a, bytes):
             # We may get a filename encoded with 'encodeFilename'
             a = a.decode(encoding)
         if isinstance(a, bytes):
             # We may get a filename encoded with 'encodeFilename'
             a = a.decode(encoding)

-        quoted_args.append(pipes.quote(a))
+        quoted_args.append(compat_shlex_quote(a))

     return ' '.join(quoted_args)
 
 
     return ' '.join(quoted_args)
 
 


@@ -1672,6 +1717,11 @@ def setproctitle(title):
         libc = ctypes.cdll.LoadLibrary('libc.so.6')
     except OSError:
         return
         libc = ctypes.cdll.LoadLibrary('libc.so.6')
     except OSError:
         return

+    except TypeError:
+        # LoadLibrary in Windows Python 2.7.13 only expects
+        # a bytestring, but since unicode_literals turns
+        # every string into a unicode string, it fails.
+        return

     title_bytes = title.encode('utf-8')
     buf = ctypes.create_string_buffer(len(title_bytes))
     buf.value = title_bytes
     title_bytes = title.encode('utf-8')
     buf = ctypes.create_string_buffer(len(title_bytes))
     buf.value = title_bytes


@@ -1708,11 +1758,16 @@ def base_url(url):
 
 
 def urljoin(base, path):
 
 
 def urljoin(base, path):

+    if isinstance(path, bytes):
+        path = path.decode('utf-8')

     if not isinstance(path, compat_str) or not path:
         return None
     if re.match(r'^(?:https?:)?//', path):
         return path
     if not isinstance(path, compat_str) or not path:
         return None
     if re.match(r'^(?:https?:)?//', path):
         return path

-    if not isinstance(base, compat_str) or not re.match(r'^(?:https?:)?//', base):
+    if isinstance(base, bytes):
+        base = base.decode('utf-8')
+    if not isinstance(base, compat_str) or not re.match(
+            r'^(?:https?:)?//', base):

         return None
     return compat_urlparse.urljoin(base, path)
 
         return None
     return compat_urlparse.urljoin(base, path)
 


@@ -1762,6 +1817,10 @@ def float_or_none(v, scale=1, invscale=1, default=None):
         return default
 
 
         return default
 
 

+def bool_or_none(v, default=None):
+    return v if isinstance(v, bool) else default
+
+

 def strip_or_none(v):
     return None if v is None else v.strip()
 
 def strip_or_none(v):
     return None if v is None else v.strip()
 


@@ -1778,10 +1837,20 @@ def parse_duration(s):
         days, hours, mins, secs, ms = m.groups()
     else:
         m = re.match(
         days, hours, mins, secs, ms = m.groups()
     else:
         m = re.match(

-            r'''(?ix)(?:P?T)?
+            r'''(?ix)(?:P?
+                (?:
+                    [0-9]+\s*y(?:ears?)?\s*
+                )?
+                (?:
+                    [0-9]+\s*m(?:onths?)?\s*
+                )?
+                (?:
+                    [0-9]+\s*w(?:eeks?)?\s*
+                )?

                 (?:
                     (?P<days>[0-9]+)\s*d(?:ays?)?\s*
                 )?
                 (?:
                     (?P<days>[0-9]+)\s*d(?:ays?)?\s*
                 )?

+                T)?

                 (?:
                     (?P<hours>[0-9]+)\s*h(?:ours?)?\s*
                 )?
                 (?:
                     (?P<hours>[0-9]+)\s*h(?:ours?)?\s*
                 )?


@@ -1876,7 +1945,7 @@ class PagedList(object):
 
 
 class OnDemandPagedList(PagedList):
 
 
 class OnDemandPagedList(PagedList):

-    def __init__(self, pagefunc, pagesize, use_cache=False):
+    def __init__(self, pagefunc, pagesize, use_cache=True):

         self._pagefunc = pagefunc
         self._pagesize = pagesize
         self._use_cache = use_cache
         self._pagefunc = pagefunc
         self._pagesize = pagesize
         self._use_cache = use_cache


@@ -2041,6 +2110,58 @@ def update_Request(req, url=None, data=None, headers={}, query={}):
     return new_req
 
 
     return new_req
 
 

+def _multipart_encode_impl(data, boundary):
+    content_type = 'multipart/form-data; boundary=%s' % boundary
+
+    out = b''
+    for k, v in data.items():
+        out += b'--' + boundary.encode('ascii') + b'\r\n'
+        if isinstance(k, compat_str):
+            k = k.encode('utf-8')
+        if isinstance(v, compat_str):
+            v = v.encode('utf-8')
+        # RFC 2047 requires non-ASCII field names to be encoded, while RFC 7578
+        # suggests sending UTF-8 directly. Firefox sends UTF-8, too
+        content = b'Content-Disposition: form-data; name="' + k + b'"\r\n\r\n' + v + b'\r\n'
+        if boundary.encode('ascii') in content:
+            raise ValueError('Boundary overlaps with data')
+        out += content
+
+    out += b'--' + boundary.encode('ascii') + b'--\r\n'
+
+    return out, content_type
+
+
+def multipart_encode(data, boundary=None):
+    '''
+    Encode a dict to RFC 7578-compliant form-data
+
+    data:
+        A dict where keys and values can be either Unicode or bytes-like
+        objects.
+    boundary:
+        If specified a Unicode object, it's used as the boundary. Otherwise
+        a random boundary is generated.
+
+    Reference: https://tools.ietf.org/html/rfc7578
+    '''
+    has_specified_boundary = boundary is not None
+
+    while True:
+        if boundary is None:
+            boundary = '---------------' + str(random.randrange(0x0fffffff, 0xffffffff))
+
+        try:
+            out, content_type = _multipart_encode_impl(data, boundary)
+            break
+        except ValueError:
+            if has_specified_boundary:
+                raise
+            boundary = None
+
+    return out, content_type
+
+

 def dict_get(d, key_or_keys, default=None, skip_false_values=True):
     if isinstance(key_or_keys, (list, tuple)):
         for key in key_or_keys:
 def dict_get(d, key_or_keys, default=None, skip_false_values=True):
     if isinstance(key_or_keys, (list, tuple)):
         for key in key_or_keys:


@@ -2052,13 +2173,16 @@ def dict_get(d, key_or_keys, default=None, skip_false_values=True):
 
 
 def try_get(src, getter, expected_type=None):
 
 
 def try_get(src, getter, expected_type=None):

-    try:
-        v = getter(src)
-    except (AttributeError, KeyError, TypeError, IndexError):
-        pass
-    else:
-        if expected_type is None or isinstance(v, expected_type):
-            return v
+    if not isinstance(getter, (list, tuple)):
+        getter = [getter]
+    for get in getter:
+        try:
+            v = get(src)
+        except (AttributeError, KeyError, TypeError, IndexError):
+            pass
+        else:
+            if expected_type is None or isinstance(v, expected_type):
+                return v

 
 
 def encode_compat_str(string, encoding=preferredencoding(), errors='strict'):
 
 
 def encode_compat_str(string, encoding=preferredencoding(), errors='strict'):


@@ -2099,7 +2223,12 @@ def parse_age_limit(s):
 
 def strip_jsonp(code):
     return re.sub(
 
 def strip_jsonp(code):
     return re.sub(

-        r'(?s)^[a-zA-Z0-9_.$]+\s*\(\s*(.*)\);?\s*?(?://[^\n]*)*$', r'\1', code)
+        r'''(?sx)^
+            (?:window\.)?(?P<func_name>[a-zA-Z0-9_.$]+)
+            (?:\s*&&\s*(?P=func_name))?
+            \s*\(\s*(?P<callback_data>.*)\);?
+            \s*?(?://[^\n]*)*$''',
+        r'\g<callback_data>', code)

 
 
 def js_to_json(code):
 
 
 def js_to_json(code):


@@ -2219,22 +2348,21 @@ def mimetype2ext(mt):
     return {
         '3gpp': '3gp',
         'smptett+xml': 'tt',
     return {
         '3gpp': '3gp',
         'smptett+xml': 'tt',

-        'srt': 'srt',

         'ttaf+xml': 'dfxp',
         'ttml+xml': 'ttml',
         'ttaf+xml': 'dfxp',
         'ttml+xml': 'ttml',

-        'vtt': 'vtt',

         'x-flv': 'flv',
         'x-mp4-fragmented': 'mp4',
         'x-flv': 'flv',
         'x-mp4-fragmented': 'mp4',

+        'x-ms-sami': 'sami',

         'x-ms-wmv': 'wmv',
         'mpegurl': 'm3u8',
         'x-mpegurl': 'm3u8',
         'vnd.apple.mpegurl': 'm3u8',
         'dash+xml': 'mpd',
         'x-ms-wmv': 'wmv',
         'mpegurl': 'm3u8',
         'x-mpegurl': 'm3u8',
         'vnd.apple.mpegurl': 'm3u8',
         'dash+xml': 'mpd',

-        'f4m': 'f4m',

         'f4m+xml': 'f4m',
         'hds+xml': 'f4m',
         'vnd.ms-sstr+xml': 'ism',
         'quicktime': 'mov',
         'f4m+xml': 'f4m',
         'hds+xml': 'f4m',
         'vnd.ms-sstr+xml': 'ism',
         'quicktime': 'mov',

+        'mp2t': 'ts',

     }.get(res, res)
 
 
     }.get(res, res)
 
 


@@ -2247,14 +2375,14 @@ def parse_codecs(codecs_str):
     vcodec, acodec = None, None
     for full_codec in splited_codecs:
         codec = full_codec.split('.')[0]
     vcodec, acodec = None, None
     for full_codec in splited_codecs:
         codec = full_codec.split('.')[0]

-        if codec in ('avc1', 'avc2', 'avc3', 'avc4', 'vp9', 'vp8', 'hev1', 'hev2', 'h263', 'h264', 'mp4v'):
+        if codec in ('avc1', 'avc2', 'avc3', 'avc4', 'vp9', 'vp8', 'hev1', 'hev2', 'h263', 'h264', 'mp4v', 'hvc1'):

             if not vcodec:
                 vcodec = full_codec
             if not vcodec:
                 vcodec = full_codec

-        elif codec in ('mp4a', 'opus', 'vorbis', 'mp3', 'aac', 'ac-3'):
+        elif codec in ('mp4a', 'opus', 'vorbis', 'mp3', 'aac', 'ac-3', 'ec-3', 'eac3', 'dtsc', 'dtse', 'dtsh', 'dtsl'):

             if not acodec:
                 acodec = full_codec
         else:
             if not acodec:
                 acodec = full_codec
         else:

-            write_string('WARNING: Unknown codec %s' % full_codec, sys.stderr)
+            write_string('WARNING: Unknown codec %s\n' % full_codec, sys.stderr)

     if not vcodec and not acodec:
         if len(splited_codecs) == 2:
             return {
     if not vcodec and not acodec:
         if len(splited_codecs) == 2:
             return {


@@ -2366,6 +2494,7 @@ def _match_one(filter_part, dct):
         \s*(?P<op>%s)(?P<none_inclusive>\s*\?)?\s*
         (?:
             (?P<intval>[0-9.]+(?:[kKmMgGtTpPeEzZyY]i?[Bb]?)?)|
         \s*(?P<op>%s)(?P<none_inclusive>\s*\?)?\s*
         (?:
             (?P<intval>[0-9.]+(?:[kKmMgGtTpPeEzZyY]i?[Bb]?)?)|

+            (?P<quote>["\'])(?P<quotedstrval>(?:\\.|(?!(?P=quote)|\\).)+?)(?P=quote)|

             (?P<strval>(?![0-9.])[a-z0-9A-Z]*)
         )
         \s*$
             (?P<strval>(?![0-9.])[a-z0-9A-Z]*)
         )
         \s*$


@@ -2374,7 +2503,8 @@ def _match_one(filter_part, dct):
     if m:
         op = COMPARISON_OPERATORS[m.group('op')]
         actual_value = dct.get(m.group('key'))
     if m:
         op = COMPARISON_OPERATORS[m.group('op')]
         actual_value = dct.get(m.group('key'))

-        if (m.group('strval') is not None or
+        if (m.group('quotedstrval') is not None or
+            m.group('strval') is not None or

             # If the original field is a string and matching comparisonvalue is
             # a number we should respect the origin of the original field
             # and process comparison value as a string (see
             # If the original field is a string and matching comparisonvalue is
             # a number we should respect the origin of the original field
             # and process comparison value as a string (see


@@ -2384,7 +2514,10 @@ def _match_one(filter_part, dct):
             if m.group('op') not in ('=', '!='):
                 raise ValueError(
                     'Operator %s does not support string values!' % m.group('op'))
             if m.group('op') not in ('=', '!='):
                 raise ValueError(
                     'Operator %s does not support string values!' % m.group('op'))

-            comparison_value = m.group('strval') or m.group('intval')
+            comparison_value = m.group('quotedstrval') or m.group('strval') or m.group('intval')
+            quote = m.group('quote')
+            if quote is not None:
+                comparison_value = comparison_value.replace(r'\%s' % quote, quote)

         else:
             try:
                 comparison_value = int(m.group('intval'))
         else:
             try:
                 comparison_value = int(m.group('intval'))


@@ -2452,27 +2585,101 @@ def srt_subtitles_timecode(seconds):
 
 
 def dfxp2srt(dfxp_data):
 
 
 def dfxp2srt(dfxp_data):

+    '''
+    @param dfxp_data A bytes-like object containing DFXP data
+    @returns A unicode object containing converted SRT data
+    '''
+    LEGACY_NAMESPACES = (
+        (b'http://www.w3.org/ns/ttml', [
+            b'http://www.w3.org/2004/11/ttaf1',
+            b'http://www.w3.org/2006/04/ttaf1',
+            b'http://www.w3.org/2006/10/ttaf1',
+        ]),
+        (b'http://www.w3.org/ns/ttml#styling', [
+            b'http://www.w3.org/ns/ttml#style',
+        ]),
+    )
+
+    SUPPORTED_STYLING = [
+        'color',
+        'fontFamily',
+        'fontSize',
+        'fontStyle',
+        'fontWeight',
+        'textDecoration'
+    ]
+

     _x = functools.partial(xpath_with_ns, ns_map={
         'ttml': 'http://www.w3.org/ns/ttml',
     _x = functools.partial(xpath_with_ns, ns_map={
         'ttml': 'http://www.w3.org/ns/ttml',

-        'ttaf1': 'http://www.w3.org/2006/10/ttaf1',
-        'ttaf1_0604': 'http://www.w3.org/2006/04/ttaf1',
+        'tts': 'http://www.w3.org/ns/ttml#styling',

     })
 
     })
 

+    styles = {}
+    default_style = {}
+

     class TTMLPElementParser(object):
     class TTMLPElementParser(object):

-        out = ''
+        _out = ''
+        _unclosed_elements = []
+        _applied_styles = []

 
         def start(self, tag, attrib):
 
         def start(self, tag, attrib):

-            if tag in (_x('ttml:br'), _x('ttaf1:br'), 'br'):
-                self.out += '\n'
+            if tag in (_x('ttml:br'), 'br'):
+                self._out += '\n'
+            else:
+                unclosed_elements = []
+                style = {}
+                element_style_id = attrib.get('style')
+                if default_style:
+                    style.update(default_style)
+                if element_style_id:
+                    style.update(styles.get(element_style_id, {}))
+                for prop in SUPPORTED_STYLING:
+                    prop_val = attrib.get(_x('tts:' + prop))
+                    if prop_val:
+                        style[prop] = prop_val
+                if style:
+                    font = ''
+                    for k, v in sorted(style.items()):
+                        if self._applied_styles and self._applied_styles[-1].get(k) == v:
+                            continue
+                        if k == 'color':
+                            font += ' color="%s"' % v
+                        elif k == 'fontSize':
+                            font += ' size="%s"' % v
+                        elif k == 'fontFamily':
+                            font += ' face="%s"' % v
+                        elif k == 'fontWeight' and v == 'bold':
+                            self._out += '<b>'
+                            unclosed_elements.append('b')
+                        elif k == 'fontStyle' and v == 'italic':
+                            self._out += '<i>'
+                            unclosed_elements.append('i')
+                        elif k == 'textDecoration' and v == 'underline':
+                            self._out += '<u>'
+                            unclosed_elements.append('u')
+                    if font:
+                        self._out += '<font' + font + '>'
+                        unclosed_elements.append('font')
+                    applied_style = {}
+                    if self._applied_styles:
+                        applied_style.update(self._applied_styles[-1])
+                    applied_style.update(style)
+                    self._applied_styles.append(applied_style)
+                self._unclosed_elements.append(unclosed_elements)

 
         def end(self, tag):
 
         def end(self, tag):

-            pass
+            if tag not in (_x('ttml:br'), 'br'):
+                unclosed_elements = self._unclosed_elements.pop()
+                for element in reversed(unclosed_elements):
+                    self._out += '</%s>' % element
+                if unclosed_elements and self._applied_styles:
+                    self._applied_styles.pop()

 
         def data(self, data):
 
         def data(self, data):

-            self.out += data
+            self._out += data

 
         def close(self):
 
         def close(self):

-            return self.out.strip()
+            return self._out.strip()

 
     def parse_node(node):
         target = TTMLPElementParser()
 
     def parse_node(node):
         target = TTMLPElementParser()


@@ -2480,13 +2687,45 @@ def dfxp2srt(dfxp_data):
         parser.feed(xml.etree.ElementTree.tostring(node))
         return parser.close()
 
         parser.feed(xml.etree.ElementTree.tostring(node))
         return parser.close()
 

-    dfxp = compat_etree_fromstring(dfxp_data.encode('utf-8'))
+    for k, v in LEGACY_NAMESPACES:
+        for ns in v:
+            dfxp_data = dfxp_data.replace(ns, k)
+
+    dfxp = compat_etree_fromstring(dfxp_data)

     out = []
     out = []

-    paras = dfxp.findall(_x('.//ttml:p')) or dfxp.findall(_x('.//ttaf1:p')) or dfxp.findall(_x('.//ttaf1_0604:p')) or dfxp.findall('.//p')
+    paras = dfxp.findall(_x('.//ttml:p')) or dfxp.findall('.//p')

 
     if not paras:
         raise ValueError('Invalid dfxp/TTML subtitle')
 
 
     if not paras:
         raise ValueError('Invalid dfxp/TTML subtitle')
 

+    repeat = False
+    while True:
+        for style in dfxp.findall(_x('.//ttml:style')):
+            style_id = style.get('id')
+            parent_style_id = style.get('style')
+            if parent_style_id:
+                if parent_style_id not in styles:
+                    repeat = True
+                    continue
+                styles[style_id] = styles[parent_style_id].copy()
+            for prop in SUPPORTED_STYLING:
+                prop_val = style.get(_x('tts:' + prop))
+                if prop_val:
+                    styles.setdefault(style_id, {})[prop] = prop_val
+        if repeat:
+            repeat = False
+        else:
+            break
+
+    for p in ('body', 'div'):
+        ele = xpath_element(dfxp, [_x('.//ttml:' + p), './/' + p])
+        if ele is None:
+            continue
+        style = styles.get(ele.get('style'))
+        if not style:
+            continue
+        default_style.update(style)
+

     for para, index in zip(paras, itertools.count(1)):
         begin_time = parse_dfxp_time_expr(para.attrib.get('begin'))
         end_time = parse_dfxp_time_expr(para.attrib.get('end'))
     for para, index in zip(paras, itertools.count(1)):
         begin_time = parse_dfxp_time_expr(para.attrib.get('begin'))
         end_time = parse_dfxp_time_expr(para.attrib.get('end'))


@@ -2515,6 +2754,8 @@ def cli_option(params, command_option, param):
 
 def cli_bool_option(params, command_option, param, true_value='true', false_value='false', separator=None):
     param = params.get(param)
 
 def cli_bool_option(params, command_option, param, true_value='true', false_value='false', separator=None):
     param = params.get(param)

+    if param is None:
+        return []

     assert isinstance(param, bool)
     if separator:
         return [command_option + separator + (true_value if param else false_value)]
     assert isinstance(param, bool)
     if separator:
         return [command_option + separator + (true_value if param else false_value)]


@@ -2996,6 +3237,260 @@ class ISO3166Utils(object):
         return cls._country_map.get(code.upper())
 
 
         return cls._country_map.get(code.upper())
 
 

+class GeoUtils(object):
+    # Major IPv4 address blocks per country
+    _country_ip_map = {
+        'AD': '85.94.160.0/19',
+        'AE': '94.200.0.0/13',
+        'AF': '149.54.0.0/17',
+        'AG': '209.59.64.0/18',
+        'AI': '204.14.248.0/21',
+        'AL': '46.99.0.0/16',
+        'AM': '46.70.0.0/15',
+        'AO': '105.168.0.0/13',
+        'AP': '159.117.192.0/21',
+        'AR': '181.0.0.0/12',
+        'AS': '202.70.112.0/20',
+        'AT': '84.112.0.0/13',
+        'AU': '1.128.0.0/11',
+        'AW': '181.41.0.0/18',
+        'AZ': '5.191.0.0/16',
+        'BA': '31.176.128.0/17',
+        'BB': '65.48.128.0/17',
+        'BD': '114.130.0.0/16',
+        'BE': '57.0.0.0/8',
+        'BF': '129.45.128.0/17',
+        'BG': '95.42.0.0/15',
+        'BH': '37.131.0.0/17',
+        'BI': '154.117.192.0/18',
+        'BJ': '137.255.0.0/16',
+        'BL': '192.131.134.0/24',
+        'BM': '196.12.64.0/18',
+        'BN': '156.31.0.0/16',
+        'BO': '161.56.0.0/16',
+        'BQ': '161.0.80.0/20',
+        'BR': '152.240.0.0/12',
+        'BS': '24.51.64.0/18',
+        'BT': '119.2.96.0/19',
+        'BW': '168.167.0.0/16',
+        'BY': '178.120.0.0/13',
+        'BZ': '179.42.192.0/18',
+        'CA': '99.224.0.0/11',
+        'CD': '41.243.0.0/16',
+        'CF': '196.32.200.0/21',
+        'CG': '197.214.128.0/17',
+        'CH': '85.0.0.0/13',
+        'CI': '154.232.0.0/14',
+        'CK': '202.65.32.0/19',
+        'CL': '152.172.0.0/14',
+        'CM': '165.210.0.0/15',
+        'CN': '36.128.0.0/10',
+        'CO': '181.240.0.0/12',
+        'CR': '201.192.0.0/12',
+        'CU': '152.206.0.0/15',
+        'CV': '165.90.96.0/19',
+        'CW': '190.88.128.0/17',
+        'CY': '46.198.0.0/15',
+        'CZ': '88.100.0.0/14',
+        'DE': '53.0.0.0/8',
+        'DJ': '197.241.0.0/17',
+        'DK': '87.48.0.0/12',
+        'DM': '192.243.48.0/20',
+        'DO': '152.166.0.0/15',
+        'DZ': '41.96.0.0/12',
+        'EC': '186.68.0.0/15',
+        'EE': '90.190.0.0/15',
+        'EG': '156.160.0.0/11',
+        'ER': '196.200.96.0/20',
+        'ES': '88.0.0.0/11',
+        'ET': '196.188.0.0/14',
+        'EU': '2.16.0.0/13',
+        'FI': '91.152.0.0/13',
+        'FJ': '144.120.0.0/16',
+        'FM': '119.252.112.0/20',
+        'FO': '88.85.32.0/19',
+        'FR': '90.0.0.0/9',
+        'GA': '41.158.0.0/15',
+        'GB': '25.0.0.0/8',
+        'GD': '74.122.88.0/21',
+        'GE': '31.146.0.0/16',
+        'GF': '161.22.64.0/18',
+        'GG': '62.68.160.0/19',
+        'GH': '45.208.0.0/14',
+        'GI': '85.115.128.0/19',
+        'GL': '88.83.0.0/19',
+        'GM': '160.182.0.0/15',
+        'GN': '197.149.192.0/18',
+        'GP': '104.250.0.0/19',
+        'GQ': '105.235.224.0/20',
+        'GR': '94.64.0.0/13',
+        'GT': '168.234.0.0/16',
+        'GU': '168.123.0.0/16',
+        'GW': '197.214.80.0/20',
+        'GY': '181.41.64.0/18',
+        'HK': '113.252.0.0/14',
+        'HN': '181.210.0.0/16',
+        'HR': '93.136.0.0/13',
+        'HT': '148.102.128.0/17',
+        'HU': '84.0.0.0/14',
+        'ID': '39.192.0.0/10',
+        'IE': '87.32.0.0/12',
+        'IL': '79.176.0.0/13',
+        'IM': '5.62.80.0/20',
+        'IN': '117.192.0.0/10',
+        'IO': '203.83.48.0/21',
+        'IQ': '37.236.0.0/14',
+        'IR': '2.176.0.0/12',
+        'IS': '82.221.0.0/16',
+        'IT': '79.0.0.0/10',
+        'JE': '87.244.64.0/18',
+        'JM': '72.27.0.0/17',
+        'JO': '176.29.0.0/16',
+        'JP': '126.0.0.0/8',
+        'KE': '105.48.0.0/12',
+        'KG': '158.181.128.0/17',
+        'KH': '36.37.128.0/17',
+        'KI': '103.25.140.0/22',
+        'KM': '197.255.224.0/20',
+        'KN': '198.32.32.0/19',
+        'KP': '175.45.176.0/22',
+        'KR': '175.192.0.0/10',
+        'KW': '37.36.0.0/14',
+        'KY': '64.96.0.0/15',
+        'KZ': '2.72.0.0/13',
+        'LA': '115.84.64.0/18',
+        'LB': '178.135.0.0/16',
+        'LC': '192.147.231.0/24',
+        'LI': '82.117.0.0/19',
+        'LK': '112.134.0.0/15',
+        'LR': '41.86.0.0/19',
+        'LS': '129.232.0.0/17',
+        'LT': '78.56.0.0/13',
+        'LU': '188.42.0.0/16',
+        'LV': '46.109.0.0/16',
+        'LY': '41.252.0.0/14',
+        'MA': '105.128.0.0/11',
+        'MC': '88.209.64.0/18',
+        'MD': '37.246.0.0/16',
+        'ME': '178.175.0.0/17',
+        'MF': '74.112.232.0/21',
+        'MG': '154.126.0.0/17',
+        'MH': '117.103.88.0/21',
+        'MK': '77.28.0.0/15',
+        'ML': '154.118.128.0/18',
+        'MM': '37.111.0.0/17',
+        'MN': '49.0.128.0/17',
+        'MO': '60.246.0.0/16',
+        'MP': '202.88.64.0/20',
+        'MQ': '109.203.224.0/19',
+        'MR': '41.188.64.0/18',
+        'MS': '208.90.112.0/22',
+        'MT': '46.11.0.0/16',
+        'MU': '105.16.0.0/12',
+        'MV': '27.114.128.0/18',
+        'MW': '105.234.0.0/16',
+        'MX': '187.192.0.0/11',
+        'MY': '175.136.0.0/13',
+        'MZ': '197.218.0.0/15',
+        'NA': '41.182.0.0/16',
+        'NC': '101.101.0.0/18',
+        'NE': '197.214.0.0/18',
+        'NF': '203.17.240.0/22',
+        'NG': '105.112.0.0/12',
+        'NI': '186.76.0.0/15',
+        'NL': '145.96.0.0/11',
+        'NO': '84.208.0.0/13',
+        'NP': '36.252.0.0/15',
+        'NR': '203.98.224.0/19',
+        'NU': '49.156.48.0/22',
+        'NZ': '49.224.0.0/14',
+        'OM': '5.36.0.0/15',
+        'PA': '186.72.0.0/15',
+        'PE': '186.160.0.0/14',
+        'PF': '123.50.64.0/18',
+        'PG': '124.240.192.0/19',
+        'PH': '49.144.0.0/13',
+        'PK': '39.32.0.0/11',
+        'PL': '83.0.0.0/11',
+        'PM': '70.36.0.0/20',
+        'PR': '66.50.0.0/16',
+        'PS': '188.161.0.0/16',
+        'PT': '85.240.0.0/13',
+        'PW': '202.124.224.0/20',
+        'PY': '181.120.0.0/14',
+        'QA': '37.210.0.0/15',
+        'RE': '139.26.0.0/16',
+        'RO': '79.112.0.0/13',
+        'RS': '178.220.0.0/14',
+        'RU': '5.136.0.0/13',
+        'RW': '105.178.0.0/15',
+        'SA': '188.48.0.0/13',
+        'SB': '202.1.160.0/19',
+        'SC': '154.192.0.0/11',
+        'SD': '154.96.0.0/13',
+        'SE': '78.64.0.0/12',
+        'SG': '152.56.0.0/14',
+        'SI': '188.196.0.0/14',
+        'SK': '78.98.0.0/15',
+        'SL': '197.215.0.0/17',
+        'SM': '89.186.32.0/19',
+        'SN': '41.82.0.0/15',
+        'SO': '197.220.64.0/19',
+        'SR': '186.179.128.0/17',
+        'SS': '105.235.208.0/21',
+        'ST': '197.159.160.0/19',
+        'SV': '168.243.0.0/16',
+        'SX': '190.102.0.0/20',
+        'SY': '5.0.0.0/16',
+        'SZ': '41.84.224.0/19',
+        'TC': '65.255.48.0/20',
+        'TD': '154.68.128.0/19',
+        'TG': '196.168.0.0/14',
+        'TH': '171.96.0.0/13',
+        'TJ': '85.9.128.0/18',
+        'TK': '27.96.24.0/21',
+        'TL': '180.189.160.0/20',
+        'TM': '95.85.96.0/19',
+        'TN': '197.0.0.0/11',
+        'TO': '175.176.144.0/21',
+        'TR': '78.160.0.0/11',
+        'TT': '186.44.0.0/15',
+        'TV': '202.2.96.0/19',
+        'TW': '120.96.0.0/11',
+        'TZ': '156.156.0.0/14',
+        'UA': '93.72.0.0/13',
+        'UG': '154.224.0.0/13',
+        'US': '3.0.0.0/8',
+        'UY': '167.56.0.0/13',
+        'UZ': '82.215.64.0/18',
+        'VA': '212.77.0.0/19',
+        'VC': '24.92.144.0/20',
+        'VE': '186.88.0.0/13',
+        'VG': '172.103.64.0/18',
+        'VI': '146.226.0.0/16',
+        'VN': '14.160.0.0/11',
+        'VU': '202.80.32.0/20',
+        'WF': '117.20.32.0/21',
+        'WS': '202.4.32.0/19',
+        'YE': '134.35.0.0/16',
+        'YT': '41.242.116.0/22',
+        'ZA': '41.0.0.0/11',
+        'ZM': '165.56.0.0/13',
+        'ZW': '41.85.192.0/19',
+    }
+
+    @classmethod
+    def random_ipv4(cls, code):
+        block = cls._country_ip_map.get(code.upper())
+        if not block:
+            return None
+        addr, preflen = block.split('/')
+        addr_min = compat_struct_unpack('!L', socket.inet_aton(addr))[0]
+        addr_max = addr_min | (0xffffffff >> int(preflen))
+        return compat_str(socket.inet_ntoa(
+            compat_struct_pack('!L', random.randint(addr_min, addr_max))))
+
+

 class PerRequestProxyHandler(compat_urllib_request.ProxyHandler):
     def __init__(self, proxies=None):
         # Set default handlers
 class PerRequestProxyHandler(compat_urllib_request.ProxyHandler):
     def __init__(self, proxies=None):
         # Set default handlers


@@ -3021,6 +3516,57 @@ class PerRequestProxyHandler(compat_urllib_request.ProxyHandler):
             self, req, proxy, type)
 
 
             self, req, proxy, type)
 
 

+# Both long_to_bytes and bytes_to_long are adapted from PyCrypto, which is
+# released into Public Domain
+# https://github.com/dlitz/pycrypto/blob/master/lib/Crypto/Util/number.py#L387
+
+def long_to_bytes(n, blocksize=0):
+    """long_to_bytes(n:long, blocksize:int) : string
+    Convert a long integer to a byte string.
+
+    If optional blocksize is given and greater than zero, pad the front of the
+    byte string with binary zeros so that the length is a multiple of
+    blocksize.
+    """
+    # after much testing, this algorithm was deemed to be the fastest
+    s = b''
+    n = int(n)
+    while n > 0:
+        s = compat_struct_pack('>I', n & 0xffffffff) + s
+        n = n >> 32
+    # strip off leading zeros
+    for i in range(len(s)):
+        if s[i] != b'\000'[0]:
+            break
+    else:
+        # only happens when n == 0
+        s = b'\000'
+        i = 0
+    s = s[i:]
+    # add back some pad bytes.  this could be done more efficiently w.r.t. the
+    # de-padding being done above, but sigh...
+    if blocksize > 0 and len(s) % blocksize:
+        s = (blocksize - len(s) % blocksize) * b'\000' + s
+    return s
+
+
+def bytes_to_long(s):
+    """bytes_to_long(string) : long
+    Convert a byte string to a long integer.
+
+    This is (essentially) the inverse of long_to_bytes().
+    """
+    acc = 0
+    length = len(s)
+    if length % 4:
+        extra = (4 - length % 4)
+        s = b'\000' * extra + s
+        length = length + extra
+    for i in range(0, length, 4):
+        acc = (acc << 32) + compat_struct_unpack('>I', s[i:i + 4])[0]
+    return acc
+
+

 def ohdave_rsa_encrypt(data, exponent, modulus):
     '''
     Implement OHDave's RSA algorithm. See http://www.ohdave.com/rsa/
 def ohdave_rsa_encrypt(data, exponent, modulus):
     '''
     Implement OHDave's RSA algorithm. See http://www.ohdave.com/rsa/


@@ -3038,6 +3584,21 @@ def ohdave_rsa_encrypt(data, exponent, modulus):
     return '%x' % encrypted
 
 
     return '%x' % encrypted
 
 

+def pkcs1pad(data, length):
+    """
+    Padding input data with PKCS#1 scheme
+
+    @param {int[]} data        input data
+    @param {int}   length      target length
+    @returns {int[]}           padded data
+    """
+    if len(data) > length - 11:
+        raise ValueError('Input data too long for PKCS#1 padding')
+
+    pseudo_random = [random.randint(0, 254) for _ in range(length - len(data) - 3)]
+    return [0, 2] + pseudo_random + [0] + data
+
+

 def encode_base_n(num, n, table=None):
     FULL_TABLE = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
     if not table:
 def encode_base_n(num, n, table=None):
     FULL_TABLE = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
     if not table:


@@ -3276,3 +3837,11 @@ def write_xattr(path, key, value):
                         "Couldn't find a tool to set the xattrs. "
                         "Install either the python 'xattr' module, "
                         "or the 'xattr' binary.")
                         "Couldn't find a tool to set the xattrs. "
                         "Install either the python 'xattr' module, "
                         "or the 'xattr' binary.")

+
+
+def random_birthday(year_field, month_field, day_field):
+    return {
+        year_field: str(random.randint(1950, 1995)),
+        month_field: str(random.randint(1, 12)),
+        day_field: str(random.randint(1, 31)),
+    }