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from __future__ import absolute_import, print_function
import json
import sys
import os
from netlib.http.semantics import CONTENT_MISSING
import netlib.utils
from . import flow, filt, utils
from .protocol import http
class DumpError(Exception):
pass
class Options(object):
attributes = [
"app",
"app_host",
"app_port",
"anticache",
"anticomp",
"client_replay",
"filtstr",
"flow_detail",
"keepserving",
"kill",
"no_server",
"nopop",
"refresh_server_playback",
"replacements",
"rfile",
"rheaders",
"setheaders",
"server_replay",
"scripts",
"showhost",
"stickycookie",
"stickyauth",
"stream_large_bodies",
"verbosity",
"outfile",
"replay_ignore_content",
"replay_ignore_params",
"replay_ignore_payload_params",
"replay_ignore_host"
]
def __init__(self, **kwargs):
for k, v in kwargs.items():
setattr(self, k, v)
for i in self.attributes:
if not hasattr(self, i):
setattr(self, i, None)
def str_response(resp):
r = "%s %s" % (resp.code, resp.msg)
if resp.is_replay:
r = "[replay] " + r
return r
def str_request(f, showhost):
if f.client_conn:
c = f.client_conn.address.host
else:
c = "[replay]"
r = "%s %s %s" % (c, f.request.method, f.request.pretty_url(showhost))
if f.request.stickycookie:
r = "[stickycookie] " + r
return r
class DumpMaster(flow.FlowMaster):
def __init__(self, server, options, outfile=sys.stdout):
flow.FlowMaster.__init__(self, server, flow.State())
self.outfile = outfile
self.o = options
self.anticache = options.anticache
self.anticomp = options.anticomp
self.showhost = options.showhost
self.replay_ignore_params = options.replay_ignore_params
self.replay_ignore_content = options.replay_ignore_content
self.replay_ignore_host = options.replay_ignore_host
self.refresh_server_playback = options.refresh_server_playback
self.replay_ignore_payload_params = options.replay_ignore_payload_params
self.set_stream_large_bodies(options.stream_large_bodies)
if options.filtstr:
self.filt = filt.parse(options.filtstr)
else:
self.filt = None
if options.stickycookie:
self.set_stickycookie(options.stickycookie)
if options.stickyauth:
self.set_stickyauth(options.stickyauth)
if options.outfile:
path = os.path.expanduser(options.outfile[0])
try:
f = file(path, options.outfile[1])
self.start_stream(f, self.filt)
except IOError as v:
raise DumpError(v.strerror)
if options.replacements:
for i in options.replacements:
self.replacehooks.add(*i)
if options.setheaders:
for i in options.setheaders:
self.setheaders.add(*i)
if options.server_replay:
self.start_server_playback(
self._readflow(options.server_replay),
options.kill, options.rheaders,
not options.keepserving,
options.nopop,
options.replay_ignore_params,
options.replay_ignore_content,
options.replay_ignore_payload_params,
options.replay_ignore_host
)
if options.client_replay:
self.start_client_playback(
self._readflow(options.client_replay),
not options.keepserving
)
scripts = options.scripts or []
for command in scripts:
err = self.load_script(command)
if err:
raise DumpError(err)
if options.rfile:
try:
self.load_flows_file(options.rfile)
except flow.FlowReadError as v:
self.add_event("Flow file corrupted.", "error")
raise DumpError(v)
if self.o.app:
self.start_app(self.o.app_host, self.o.app_port)
def _readflow(self, paths):
"""
Utitility function that reads a list of flows
or raises a DumpError if that fails.
"""
try:
return flow.read_flows_from_paths(paths)
except flow.FlowReadError as e:
raise DumpError(e.strerror)
def add_event(self, e, level="info"):
needed = dict(error=0, info=1, debug=2).get(level, 1)
if self.o.verbosity >= needed:
print(e, file=self.outfile)
self.outfile.flush()
@staticmethod
def indent(n, t):
l = str(t).strip().splitlines()
pad = " " * n
return "\n".join(pad + i for i in l)
def _print_message(self, message):
if self.o.flow_detail >= 2:
print(self.indent(4, str(message.headers)), file=self.outfile)
if self.o.flow_detail >= 3:
if message.content == CONTENT_MISSING:
print(self.indent(4, "(content missing)"), file=self.outfile)
elif message.content:
print("", file=self.outfile)
content = message.get_decoded_content()
if not utils.isBin(content):
try:
jsn = json.loads(content)
print(
self.indent(
4,
json.dumps(
jsn,
indent=2)),
file=self.outfile)
except ValueError:
print(self.indent(4, content), file=self.outfile)
else:
d = netlib.utils.hexdump(content)
d = "\n".join("%s\t%s %s" % i for i in d)
print(self.indent(4, d), file=self.outfile)
if self.o.flow_detail >= 2:
print("", file=self.outfile)
def _process_flow(self, f):
self.state.delete_flow(f)
if self.filt and not f.match(self.filt):
return
if self.o.flow_detail == 0:
return
if f.request:
print(str_request(f, self.showhost), file=self.outfile)
self._print_message(f.request)
if f.response:
if f.response.content == CONTENT_MISSING:
sz = "(content missing)"
else:
sz = netlib.utils.pretty_size(len(f.response.content))
print(
" << %s %s" %
(str_response(
f.response),
sz),
file=self.outfile)
self._print_message(f.response)
if f.error:
print(" << {}".format(f.error.msg), file=self.outfile)
self.outfile.flush()
def handle_request(self, f):
flow.FlowMaster.handle_request(self, f)
if f:
f.reply()
return f
def handle_response(self, f):
flow.FlowMaster.handle_response(self, f)
if f:
f.reply()
self._process_flow(f)
return f
def handle_error(self, f):
flow.FlowMaster.handle_error(self, f)
if f:
self._process_flow(f)
return f
def shutdown(self): # pragma: no cover
return flow.FlowMaster.shutdown(self)
def run(self): # pragma: no cover
if self.o.rfile and not self.o.keepserving:
self.shutdown()
return
try:
return flow.FlowMaster.run(self)
except BaseException:
self.shutdown()
raise
|
