| Index: tools/telemetry/third_party/webpagereplay/third_party/dns/opcode.py
|
| diff --git a/tools/telemetry/third_party/webpagereplay/third_party/dns/opcode.py b/tools/telemetry/third_party/webpagereplay/third_party/dns/opcode.py
|
| deleted file mode 100644
|
| index 705bd09a43d1fb887e63fcc0920ef7e317e1e2f7..0000000000000000000000000000000000000000
|
| --- a/tools/telemetry/third_party/webpagereplay/third_party/dns/opcode.py
|
| +++ /dev/null
|
| @@ -1,104 +0,0 @@
|
| -# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
| -#
|
| -# Permission to use, copy, modify, and distribute this software and its
|
| -# documentation for any purpose with or without fee is hereby granted,
|
| -# provided that the above copyright notice and this permission notice
|
| -# appear in all copies.
|
| -#
|
| -# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
| -# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
| -# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
| -# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
| -# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
| -# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
| -# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
| -
|
| -"""DNS Opcodes."""
|
| -
|
| -import dns.exception
|
| -
|
| -QUERY = 0
|
| -IQUERY = 1
|
| -STATUS = 2
|
| -NOTIFY = 4
|
| -UPDATE = 5
|
| -
|
| -_by_text = {
|
| - 'QUERY' : QUERY,
|
| - 'IQUERY' : IQUERY,
|
| - 'STATUS' : STATUS,
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| - 'NOTIFY' : NOTIFY,
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| - 'UPDATE' : UPDATE
|
| -}
|
| -
|
| -# We construct the inverse mapping programmatically to ensure that we
|
| -# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
|
| -# would cause the mapping not to be true inverse.
|
| -
|
| -_by_value = dict([(y, x) for x, y in _by_text.iteritems()])
|
| -
|
| -
|
| -class UnknownOpcode(dns.exception.DNSException):
|
| - """Raised if an opcode is unknown."""
|
| - pass
|
| -
|
| -def from_text(text):
|
| - """Convert text into an opcode.
|
| -
|
| - @param text: the textual opcode
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| - @type text: string
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| - @raises UnknownOpcode: the opcode is unknown
|
| - @rtype: int
|
| - """
|
| -
|
| - if text.isdigit():
|
| - value = int(text)
|
| - if value >= 0 and value <= 15:
|
| - return value
|
| - value = _by_text.get(text.upper())
|
| - if value is None:
|
| - raise UnknownOpcode
|
| - return value
|
| -
|
| -def from_flags(flags):
|
| - """Extract an opcode from DNS message flags.
|
| -
|
| - @param flags: int
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| - @rtype: int
|
| - """
|
| -
|
| - return (flags & 0x7800) >> 11
|
| -
|
| -def to_flags(value):
|
| - """Convert an opcode to a value suitable for ORing into DNS message
|
| - flags.
|
| - @rtype: int
|
| - """
|
| -
|
| - return (value << 11) & 0x7800
|
| -
|
| -def to_text(value):
|
| - """Convert an opcode to text.
|
| -
|
| - @param value: the opcdoe
|
| - @type value: int
|
| - @raises UnknownOpcode: the opcode is unknown
|
| - @rtype: string
|
| - """
|
| -
|
| - text = _by_value.get(value)
|
| - if text is None:
|
| - text = str(value)
|
| - return text
|
| -
|
| -def is_update(flags):
|
| - """True if the opcode in flags is UPDATE.
|
| -
|
| - @param flags: DNS flags
|
| - @type flags: int
|
| - @rtype: bool
|
| - """
|
| -
|
| - if (from_flags(flags) == UPDATE):
|
| - return True
|
| - return False
|
|
|