diff options
Diffstat (limited to 'youtube_dl/utils.py')
| -rw-r--r-- | youtube_dl/utils.py | 140 |
1 files changed, 107 insertions, 33 deletions
diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py index b97e62ae9..42ad520f9 100644 --- a/youtube_dl/utils.py +++ b/youtube_dl/utils.py @@ -24,6 +24,7 @@ import socket import struct import subprocess import sys +import tempfile import traceback import xml.etree.ElementTree import zlib @@ -91,11 +92,9 @@ except ImportError: compat_subprocess_get_DEVNULL = lambda: open(os.path.devnull, 'w') try: - from urllib.parse import parse_qs as compat_parse_qs -except ImportError: # Python 2 - # HACK: The following is the correct parse_qs implementation from cpython 3's stdlib. - # Python 2's version is apparently totally broken - def _unquote(string, encoding='utf-8', errors='replace'): + from urllib.parse import unquote as compat_urllib_parse_unquote +except ImportError: + def compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'): if string == '': return string res = string.split('%') @@ -130,6 +129,13 @@ except ImportError: # Python 2 string += pct_sequence.decode(encoding, errors) return string + +try: + from urllib.parse import parse_qs as compat_parse_qs +except ImportError: # Python 2 + # HACK: The following is the correct parse_qs implementation from cpython 3's stdlib. + # Python 2's version is apparently totally broken + def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False, encoding='utf-8', errors='replace'): qs, _coerce_result = qs, unicode @@ -149,10 +155,12 @@ except ImportError: # Python 2 continue if len(nv[1]) or keep_blank_values: name = nv[0].replace('+', ' ') - name = _unquote(name, encoding=encoding, errors=errors) + name = compat_urllib_parse_unquote( + name, encoding=encoding, errors=errors) name = _coerce_result(name) value = nv[1].replace('+', ' ') - value = _unquote(value, encoding=encoding, errors=errors) + value = compat_urllib_parse_unquote( + value, encoding=encoding, errors=errors) value = _coerce_result(value) r.append((name, value)) return r @@ -221,22 +229,46 @@ else: assert type(s) == type(u'') print(s) -# In Python 2.x, json.dump expects a bytestream. -# In Python 3.x, it writes to a character stream -if sys.version_info < (3,0): - def write_json_file(obj, fn): - with open(fn, 'wb') as f: - json.dump(obj, f) -else: - def write_json_file(obj, fn): - with open(fn, 'w', encoding='utf-8') as f: - json.dump(obj, f) -if sys.version_info >= (2,7): +def write_json_file(obj, fn): + """ Encode obj as JSON and write it to fn, atomically """ + + args = { + 'suffix': '.tmp', + 'prefix': os.path.basename(fn) + '.', + 'dir': os.path.dirname(fn), + 'delete': False, + } + + # In Python 2.x, json.dump expects a bytestream. + # In Python 3.x, it writes to a character stream + if sys.version_info < (3, 0): + args['mode'] = 'wb' + else: + args.update({ + 'mode': 'w', + 'encoding': 'utf-8', + }) + + tf = tempfile.NamedTemporaryFile(**args) + + try: + with tf: + json.dump(obj, tf) + os.rename(tf.name, fn) + except: + try: + os.remove(tf.name) + except OSError: + pass + raise + + +if sys.version_info >= (2, 7): def find_xpath_attr(node, xpath, key, val): """ Find the xpath xpath[@key=val] """ - assert re.match(r'^[a-zA-Z]+$', key) - assert re.match(r'^[a-zA-Z0-9@\s:._]*$', val) + assert re.match(r'^[a-zA-Z-]+$', key) + assert re.match(r'^[a-zA-Z0-9@\s:._-]*$', val) expr = xpath + u"[@%s='%s']" % (key, val) return node.find(expr) else: @@ -775,7 +807,7 @@ class YoutubeDLHandler(compat_urllib_request.HTTPHandler): https_response = http_response -def parse_iso8601(date_str): +def parse_iso8601(date_str, delimiter='T'): """ Return a UNIX timestamp from the given date """ if date_str is None: @@ -795,8 +827,8 @@ def parse_iso8601(date_str): timezone = datetime.timedelta( hours=sign * int(m.group('hours')), minutes=sign * int(m.group('minutes'))) - - dt = datetime.datetime.strptime(date_str, '%Y-%m-%dT%H:%M:%S') - timezone + date_format = '%Y-%m-%d{0}%H:%M:%S'.format(delimiter) + dt = datetime.datetime.strptime(date_str, date_format) - timezone return calendar.timegm(dt.timetuple()) @@ -816,7 +848,11 @@ def unified_strdate(date_str): '%d %b %Y', '%B %d %Y', '%b %d %Y', + '%b %dst %Y %I:%M%p', + '%b %dnd %Y %I:%M%p', + '%b %dth %Y %I:%M%p', '%Y-%m-%d', + '%Y/%m/%d', '%d.%m.%Y', '%d/%m/%Y', '%Y/%m/%d %H:%M:%S', @@ -842,6 +878,8 @@ def unified_strdate(date_str): return upload_date def determine_ext(url, default_ext=u'unknown_video'): + if url is None: + return default_ext guess = url.partition(u'?')[0].rpartition(u'.')[2] if re.match(r'^[A-Za-z0-9]+$', guess): return guess @@ -1190,11 +1228,6 @@ def format_bytes(bytes): return u'%.2f%s' % (converted, suffix) -def str_to_int(int_str): - int_str = re.sub(r'[,\.]', u'', int_str) - return int(int_str) - - def get_term_width(): columns = os.environ.get('COLUMNS', None) if columns: @@ -1262,15 +1295,28 @@ class HEADRequest(compat_urllib_request.Request): return "HEAD" -def int_or_none(v, scale=1, default=None, get_attr=None): +def int_or_none(v, scale=1, default=None, get_attr=None, invscale=1): if get_attr: if v is not None: v = getattr(v, get_attr, None) - return default if v is None else (int(v) // scale) + if v == '': + v = None + return default if v is None else (int(v) * invscale // scale) + + +def str_or_none(v, default=None): + return default if v is None else compat_str(v) + + +def str_to_int(int_str): + if int_str is None: + return None + int_str = re.sub(r'[,\.]', u'', int_str) + return int(int_str) -def float_or_none(v, scale=1, default=None): - return default if v is None else (float(v) / scale) +def float_or_none(v, scale=1, invscale=1, default=None): + return default if v is None else (float(v) * invscale / scale) def parse_duration(s): @@ -1425,7 +1471,35 @@ US_RATINGS = { def strip_jsonp(code): - return re.sub(r'(?s)^[a-zA-Z_]+\s*\(\s*(.*)\);\s*?\s*$', r'\1', code) + return re.sub(r'(?s)^[a-zA-Z0-9_]+\s*\(\s*(.*)\);?\s*?\s*$', r'\1', code) + + +def js_to_json(code): + def fix_kv(m): + key = m.group(2) + if key.startswith("'"): + assert key.endswith("'") + assert '"' not in key + key = '"%s"' % key[1:-1] + elif not key.startswith('"'): + key = '"%s"' % key + + value = m.group(4) + if value.startswith("'"): + assert value.endswith("'") + assert '"' not in value + value = '"%s"' % value[1:-1] + + return m.group(1) + key + m.group(3) + value + + res = re.sub(r'''(?x) + ([{,]\s*) + ("[^"]*"|\'[^\']*\'|[a-z0-9A-Z]+) + (:\s*) + ([0-9.]+|true|false|"[^"]*"|\'[^\']*\'|\[|\{) + ''', fix_kv, code) + res = re.sub(r',(\s*\])', lambda m: m.group(1), res) + return res def qualities(quality_ids): |