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git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1934905 13f79535-47bb-0310-9956-ffa450edef68
93 lines
3.3 KiB
Plaintext
93 lines
3.3 KiB
Plaintext
#!@pythonbin@
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# split-logfile-ng -- Python port of the historical Perl split-logfile.
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#
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# This script will take a combined Web server access
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# log file and break its contents into separate files.
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# It assumes that the first field of each line is the
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# virtual host identity (put there by "%v"), and that
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# the logfiles should be named that+".log" in the current
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# directory.
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#
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# The combined log file is read from stdin. Records read
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# will be appended to any existing log files.
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import re
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import sys
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def main():
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#
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# Operate on raw bytes, not decoded text, to match the Perl original
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# exactly: Perl reads STDIN as bytes, so its \s matches only ASCII
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# whitespace and lc() lowercases only ASCII A-Z. Python's bytes
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# regexes are inherently ASCII-only and bytes.lower() lowercases only
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# ASCII, so reading sys.stdin.buffer reproduces Perl's behavior on
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# non-ASCII input (Unicode whitespace / case folding would otherwise
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# diverge).
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#
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log_file = {}
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for log_line in sys.stdin.buffer:
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#
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# Get the first token from the log record; it's the
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# identity of the virtual host to which the record
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# applies.
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#
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vhost = re.split(rb"\s", log_line, maxsplit=1)[0]
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#
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# Normalize the virtual host name to all lowercase.
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# If it's blank, the request was handled by the default
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# server, so supply a default name. This shouldn't
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# happen, but caution rocks.
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#
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vhost = vhost.lower() or b"access"
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#
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# if the vhost contains a "/" or "\", it is illegal so just use
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# the default log to avoid any security issues due if it is interprted
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# as a directory separator.
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#
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if re.search(rb"[/\\]", vhost):
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vhost = b"access"
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#
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# If the log file for this virtual host isn't opened
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# yet, do it now.
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#
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if vhost not in log_file:
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try:
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log_file[vhost] = open(vhost + b".log", "ab")
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except IOError:
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sys.stderr.write("Can't open %s.log\n"
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% vhost.decode("latin-1"))
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sys.exit(1)
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#
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# Strip off the first token (which may be null in the
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# case of the default server), and write the edited
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# record to the current log file.
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#
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log_line = re.sub(rb"^\S*\s+", b"", log_line)
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log_file[vhost].write(log_line)
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for fh in log_file.values():
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fh.close()
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sys.exit(0)
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if __name__ == "__main__":
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main()
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