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, |
- 'NOTIFY' : NOTIFY, |
- '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 |
- @type text: string |
- @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 |
- @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 |