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#!/usr/bin/env python
# Copyright (C) 2010 Henrik Nordstrom <henrik@henriknordstrom.net>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# HENRIK NORDSTROM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
# OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# Alternatively you may use this file under a GPLv3 license as follows:
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import sys
import controller
import utils
import proxy
import recorder
class PlaybackMaster(controller.Master):
"""
A simple master that plays back recorded responses.
"""
def __init__(self, server, options):
self.verbosity = options.verbose
self.store = recorder.Recorder(options)
controller.Master.__init__(self, server)
def run(self):
try:
return controller.Master.run(self)
except KeyboardInterrupt:
self.shutdown()
def process_missing_response(self, request):
response = None
print >> sys.stderr, self.store.normalize_request(request).assemble_proxy()
print >> sys.stderr, "Actions:"
print >> sys.stderr, " q Quit"
print >> sys.stderr, " a(dd) Add pattern rule"
print >> sys.stderr, " A(dd) Add pattern rule (forced)"
print >> sys.stderr, " e(rror) respond with a 404 error"
print >> sys.stderr, " k(ill) kill the request, empty response"
print >> sys.stderr, " f(orward) forward the request to the requested server and cache response"
command = raw_input("Action: ")
command = command[:1]
if command == 'q':
self.shutdown()
return None
elif command == 'a' or command == 'A':
filt = raw_input("Filter: ")
search = raw_input("Search pattern: ")
replace = raw_input("Replacement string: ")
self.store.add_rule(filt, search, replace)
if command == 'A':
self.store.save_rule(filt, search, replace)
elif command == 'e':
return proxy.Response(request, "404", "Not found", utils.Headers(), "Not found")
elif command == 'k':
return None
elif command == 'f':
return request
else:
print >> sys.stderr, "ERROR: Unknown command"
return self.process_missing_response(request)
try:
response = self.store.get_response(request)
if command == 'a':
self.store.save_rule(filt, search, replace)
except proxy.ProxyError:
print >> sys.stderr, "ERROR: Malformed substitution rule"
self.store.forget_last_rule()
response = self.process_missing_response(request)
except IOError:
print >> sys.stderr, "NOTICE: Response still not found"
if command == 'a':
self.store.forget_last_rule()
response = self.process_missing_response(request)
return response
def handle_request(self, msg):
request = msg
try:
response = self.store.get_response(request)
except IOError:
if self.verbosity > 0:
print >> sys.stderr, ">>",
print >> sys.stderr, request.short()
print >> sys.stderr, "<<",
print >> sys.stderr, "ERROR: No matching response.",
print >> sys.stderr, ",".join(self.store.cookies)
response = self.process_missing_response(msg)
msg.ack(response)
def handle_response(self, msg):
request = msg.request
response = msg
if self.verbosity > 0:
print >> sys.stderr, ">>",
print >> sys.stderr, request.short()
print >> sys.stderr, "<<",
print >> sys.stderr, response.short()
if not response.is_cached():
self.store.save_response(response)
msg.ack(self.store.filter_response(msg))
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