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[utils] Skip remote IP addresses non matching to source address' IP version (closes #13422)
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@ -882,7 +882,40 @@ def _create_http_connection(ydl_handler, http_class, is_https, *args, **kwargs):
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kwargs['strict'] = True
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hc = http_class(*args, **compat_kwargs(kwargs))
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source_address = ydl_handler._params.get('source_address')
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if source_address is not None:
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filter_for = socket.AF_INET if '.' in source_address else socket.AF_INET6
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# This is to workaround _create_connection() from socket where it will try all
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# address data from getaddrinfo() including IPv6. This filters the result from
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# getaddrinfo() based on the source_address value.
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# This is based on the cpython socket.create_connection() function.
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# https://github.com/python/cpython/blob/master/Lib/socket.py#L691
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def _create_connection(address, timeout=socket._GLOBAL_DEFAULT_TIMEOUT, source_address=None):
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host, port = address
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err = None
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addrs = socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM)
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ip_addrs = [addr for addr in addrs if addr[0] == filter_for]
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for res in ip_addrs:
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af, socktype, proto, canonname, sa = res
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sock = None
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try:
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sock = socket.socket(af, socktype, proto)
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if timeout is not socket._GLOBAL_DEFAULT_TIMEOUT:
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sock.settimeout(timeout)
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sock.bind(source_address)
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sock.connect(sa)
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err = None # Explicitly break reference cycle
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return sock
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except socket.error as _:
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err = _
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if sock is not None:
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sock.close()
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if err is not None:
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raise err
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else:
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raise socket.error('Unknown error occurred')
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hc._create_connection = _create_connection
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sa = (source_address, 0)
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if hasattr(hc, 'source_address'): # Python 2.7+
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hc.source_address = sa
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