mirror of
https://github.com/Grasscutters/mitmproxy.git
synced 2024-11-26 18:18:25 +00:00
133 lines
4.2 KiB
Python
133 lines
4.2 KiB
Python
from __future__ import absolute_import
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import os, traceback, threading, shlex
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from . import controller
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class ScriptError(Exception):
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pass
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class ScriptContext:
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def __init__(self, master):
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self._master = master
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def log(self, message, level="info"):
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"""
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Logs an event.
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By default, only events with level "error" get displayed. This can be controlled with the "-v" switch.
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How log messages are handled depends on the front-end. mitmdump will print them to stdout,
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mitmproxy sends output to the eventlog for display ("e" keyboard shortcut).
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"""
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self._master.add_event(message, level)
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def duplicate_flow(self, f):
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"""
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Returns a duplicate of the specified flow. The flow is also
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injected into the current state, and is ready for editing, replay,
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etc.
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"""
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self._master.pause_scripts = True
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f = self._master.duplicate_flow(f)
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self._master.pause_scripts = False
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return f
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def replay_request(self, f):
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"""
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Replay the request on the current flow. The response will be added
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to the flow object.
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"""
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self._master.replay_request(f)
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class Script:
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"""
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The instantiator should do something along this vein:
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s = Script(argv, master)
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s.load()
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"""
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def __init__(self, command, master):
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self.command = command
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self.argv = self.parse_command(command)
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self.ctx = ScriptContext(master)
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self.ns = None
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self.load()
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@classmethod
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def parse_command(klass, command):
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if os.name == "nt": # Windows: escape all backslashes in the path.
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backslashes = shlex.split(command, posix=False)[0].count("\\")
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command = command.replace("\\", "\\\\", backslashes)
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args = shlex.split(command)
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args[0] = os.path.expanduser(args[0])
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if not os.path.exists(args[0]):
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raise ScriptError(("Script file not found: %s.\r\n"
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"If you script path contains spaces, "
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"make sure to wrap it in additional quotes, e.g. -s \"'./foo bar/baz.py' --args\".") % args[0])
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elif not os.path.isfile(args[0]):
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raise ScriptError("Not a file: %s" % args[0])
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return args
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def load(self):
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"""
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Loads a module.
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Raises ScriptError on failure, with argument equal to an error
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message that may be a formatted traceback.
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"""
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ns = {}
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try:
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execfile(self.argv[0], ns, ns)
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except Exception, v:
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raise ScriptError(traceback.format_exc(v))
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self.ns = ns
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r = self.run("start", self.argv)
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if not r[0] and r[1]:
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raise ScriptError(r[1][1])
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def unload(self):
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return self.run("done")
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def run(self, name, *args, **kwargs):
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"""
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Runs a plugin method.
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Returns:
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(True, retval) on success.
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(False, None) on nonexistent method.
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(False, (exc, traceback string)) if there was an exception.
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"""
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f = self.ns.get(name)
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if f:
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try:
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return (True, f(self.ctx, *args, **kwargs))
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except Exception, v:
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return (False, (v, traceback.format_exc(v)))
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else:
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return (False, None)
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def _handle_concurrent_reply(fn, o, *args, **kwargs):
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# Make first call to o.reply a no op
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original_reply = o.reply
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def restore_original_reply():
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o.reply = original_reply
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if hasattr(original_reply, "q"):
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restore_original_reply.q = original_reply.q
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o.reply = restore_original_reply
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def run():
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fn(*args, **kwargs)
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o.reply() # If the script did not call .reply(), we have to do it now.
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threading.Thread(target=run, name="ScriptThread").start()
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def concurrent(fn):
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if fn.func_name in ("request", "response", "error", "clientconnect", "serverconnect", "clientdisconnect"):
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def _concurrent(ctx, obj):
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_handle_concurrent_reply(fn, obj, ctx, obj)
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return _concurrent
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raise NotImplementedError("Concurrent decorator not supported for this method.")
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