mirror of
https://github.com/Grasscutters/mitmproxy.git
synced 2024-11-26 18:18:25 +00:00
432 lines
9.8 KiB
Python
432 lines
9.8 KiB
Python
"""
|
|
The following operators are understood:
|
|
|
|
~q Request
|
|
~s Response
|
|
|
|
Headers:
|
|
|
|
Patterns are matched against "name: value" strings. Field names are
|
|
all-lowercase.
|
|
|
|
~a Asset content-type in response. Asset content types are:
|
|
text/javascript
|
|
application/x-javascript
|
|
application/javascript
|
|
text/css
|
|
image/*
|
|
application/x-shockwave-flash
|
|
~h rex Header line in either request or response
|
|
~hq rex Header in request
|
|
~hs rex Header in response
|
|
|
|
~b rex Expression in the body of either request or response
|
|
~bq rex Expression in the body of request
|
|
~bq rex Expression in the body of response
|
|
~t rex Shortcut for content-type header.
|
|
|
|
~d rex Request domain
|
|
~m rex Method
|
|
~u rex URL
|
|
~c CODE Response code.
|
|
rex Equivalent to ~u rex
|
|
"""
|
|
from __future__ import absolute_import, print_function, division
|
|
|
|
import re
|
|
import sys
|
|
|
|
import pyparsing as pp
|
|
|
|
|
|
class _Token(object):
|
|
|
|
def dump(self, indent=0, fp=sys.stdout):
|
|
print("{spacing}{name}{expr}".format(
|
|
spacing="\t" * indent,
|
|
name=self.__class__.__name__,
|
|
expr=getattr(self, "expr", "")
|
|
), file=fp)
|
|
|
|
|
|
class _Action(_Token):
|
|
|
|
@classmethod
|
|
def make(klass, s, loc, toks):
|
|
return klass(*toks[1:])
|
|
|
|
|
|
class FErr(_Action):
|
|
code = "e"
|
|
help = "Match error"
|
|
|
|
def __call__(self, f):
|
|
return True if f.error else False
|
|
|
|
|
|
class FReq(_Action):
|
|
code = "q"
|
|
help = "Match request with no response"
|
|
|
|
def __call__(self, f):
|
|
if not f.response:
|
|
return True
|
|
|
|
|
|
class FResp(_Action):
|
|
code = "s"
|
|
help = "Match response"
|
|
|
|
def __call__(self, f):
|
|
return True if f.response else False
|
|
|
|
|
|
class _Rex(_Action):
|
|
flags = 0
|
|
|
|
def __init__(self, expr):
|
|
self.expr = expr
|
|
try:
|
|
self.re = re.compile(self.expr, self.flags)
|
|
except:
|
|
raise ValueError("Cannot compile expression.")
|
|
|
|
|
|
def _check_content_type(expr, o):
|
|
val = o.headers.get("content-type")
|
|
if val and re.search(expr, val):
|
|
return True
|
|
return False
|
|
|
|
|
|
class FAsset(_Action):
|
|
code = "a"
|
|
help = "Match asset in response: CSS, Javascript, Flash, images."
|
|
ASSET_TYPES = [
|
|
"text/javascript",
|
|
"application/x-javascript",
|
|
"application/javascript",
|
|
"text/css",
|
|
"image/.*",
|
|
"application/x-shockwave-flash"
|
|
]
|
|
|
|
def __call__(self, f):
|
|
if f.response:
|
|
for i in self.ASSET_TYPES:
|
|
if _check_content_type(i, f.response):
|
|
return True
|
|
return False
|
|
|
|
|
|
class FContentType(_Rex):
|
|
code = "t"
|
|
help = "Content-type header"
|
|
|
|
def __call__(self, f):
|
|
if _check_content_type(self.expr, f.request):
|
|
return True
|
|
elif f.response and _check_content_type(self.expr, f.response):
|
|
return True
|
|
return False
|
|
|
|
|
|
class FRequestContentType(_Rex):
|
|
code = "tq"
|
|
help = "Request Content-Type header"
|
|
|
|
def __call__(self, f):
|
|
return _check_content_type(self.expr, f.request)
|
|
|
|
|
|
class FResponseContentType(_Rex):
|
|
code = "ts"
|
|
help = "Response Content-Type header"
|
|
|
|
def __call__(self, f):
|
|
if f.response:
|
|
return _check_content_type(self.expr, f.response)
|
|
return False
|
|
|
|
|
|
class FHead(_Rex):
|
|
code = "h"
|
|
help = "Header"
|
|
flags = re.MULTILINE
|
|
|
|
def __call__(self, f):
|
|
if f.request and self.re.search(bytes(f.request.headers)):
|
|
return True
|
|
if f.response and self.re.search(bytes(f.response.headers)):
|
|
return True
|
|
return False
|
|
|
|
|
|
class FHeadRequest(_Rex):
|
|
code = "hq"
|
|
help = "Request header"
|
|
flags = re.MULTILINE
|
|
|
|
def __call__(self, f):
|
|
if f.request and self.re.search(bytes(f.request.headers)):
|
|
return True
|
|
|
|
|
|
class FHeadResponse(_Rex):
|
|
code = "hs"
|
|
help = "Response header"
|
|
flags = re.MULTILINE
|
|
|
|
def __call__(self, f):
|
|
if f.response and self.re.search(bytes(f.response.headers)):
|
|
return True
|
|
|
|
|
|
class FBod(_Rex):
|
|
code = "b"
|
|
help = "Body"
|
|
|
|
def __call__(self, f):
|
|
if f.request and f.request.content:
|
|
if self.re.search(f.request.get_decoded_content()):
|
|
return True
|
|
if f.response and f.response.content:
|
|
if self.re.search(f.response.get_decoded_content()):
|
|
return True
|
|
return False
|
|
|
|
|
|
class FBodRequest(_Rex):
|
|
code = "bq"
|
|
help = "Request body"
|
|
|
|
def __call__(self, f):
|
|
if f.request and f.request.content:
|
|
if self.re.search(f.request.get_decoded_content()):
|
|
return True
|
|
|
|
|
|
class FBodResponse(_Rex):
|
|
code = "bs"
|
|
help = "Response body"
|
|
|
|
def __call__(self, f):
|
|
if f.response and f.response.content:
|
|
if self.re.search(f.response.get_decoded_content()):
|
|
return True
|
|
|
|
|
|
class FMethod(_Rex):
|
|
code = "m"
|
|
help = "Method"
|
|
flags = re.IGNORECASE
|
|
|
|
def __call__(self, f):
|
|
return bool(self.re.search(f.request.method))
|
|
|
|
|
|
class FDomain(_Rex):
|
|
code = "d"
|
|
help = "Domain"
|
|
flags = re.IGNORECASE
|
|
|
|
def __call__(self, f):
|
|
return bool(self.re.search(f.request.host))
|
|
|
|
|
|
class FUrl(_Rex):
|
|
code = "u"
|
|
help = "URL"
|
|
# FUrl is special, because it can be "naked".
|
|
|
|
@classmethod
|
|
def make(klass, s, loc, toks):
|
|
if len(toks) > 1:
|
|
toks = toks[1:]
|
|
return klass(*toks)
|
|
|
|
def __call__(self, f):
|
|
return self.re.search(f.request.url)
|
|
|
|
|
|
class FSrc(_Rex):
|
|
code = "src"
|
|
help = "Match source address"
|
|
|
|
def __call__(self, f):
|
|
return f.client_conn.address and self.re.search(repr(f.client_conn.address))
|
|
|
|
|
|
class FDst(_Rex):
|
|
code = "dst"
|
|
help = "Match destination address"
|
|
|
|
def __call__(self, f):
|
|
return f.server_conn.address and self.re.search(repr(f.server_conn.address))
|
|
|
|
|
|
class _Int(_Action):
|
|
|
|
def __init__(self, num):
|
|
self.num = int(num)
|
|
|
|
|
|
class FCode(_Int):
|
|
code = "c"
|
|
help = "HTTP response code"
|
|
|
|
def __call__(self, f):
|
|
if f.response and f.response.status_code == self.num:
|
|
return True
|
|
|
|
|
|
class FAnd(_Token):
|
|
|
|
def __init__(self, lst):
|
|
self.lst = lst
|
|
|
|
def dump(self, indent=0, fp=sys.stdout):
|
|
super(FAnd, self).dump(indent, fp)
|
|
for i in self.lst:
|
|
i.dump(indent + 1, fp)
|
|
|
|
def __call__(self, f):
|
|
return all(i(f) for i in self.lst)
|
|
|
|
|
|
class FOr(_Token):
|
|
|
|
def __init__(self, lst):
|
|
self.lst = lst
|
|
|
|
def dump(self, indent=0, fp=sys.stdout):
|
|
super(FOr, self).dump(indent, fp)
|
|
for i in self.lst:
|
|
i.dump(indent + 1, fp)
|
|
|
|
def __call__(self, f):
|
|
return any(i(f) for i in self.lst)
|
|
|
|
|
|
class FNot(_Token):
|
|
|
|
def __init__(self, itm):
|
|
self.itm = itm[0]
|
|
|
|
def dump(self, indent=0, fp=sys.stdout):
|
|
super(FNot, self).dump(indent, fp)
|
|
self.itm.dump(indent + 1, fp)
|
|
|
|
def __call__(self, f):
|
|
return not self.itm(f)
|
|
|
|
|
|
filt_unary = [
|
|
FReq,
|
|
FResp,
|
|
FAsset,
|
|
FErr
|
|
]
|
|
filt_rex = [
|
|
FHeadRequest,
|
|
FHeadResponse,
|
|
FHead,
|
|
FBodRequest,
|
|
FBodResponse,
|
|
FBod,
|
|
FMethod,
|
|
FDomain,
|
|
FUrl,
|
|
FRequestContentType,
|
|
FResponseContentType,
|
|
FContentType,
|
|
FSrc,
|
|
FDst,
|
|
]
|
|
filt_int = [
|
|
FCode
|
|
]
|
|
|
|
|
|
def _make():
|
|
# Order is important - multi-char expressions need to come before narrow
|
|
# ones.
|
|
parts = []
|
|
for klass in filt_unary:
|
|
f = pp.Literal("~%s" % klass.code) + pp.WordEnd()
|
|
f.setParseAction(klass.make)
|
|
parts.append(f)
|
|
|
|
simplerex = "".join(c for c in pp.printables if c not in "()~'\"")
|
|
rex = pp.Word(simplerex) |\
|
|
pp.QuotedString("\"", escChar='\\') |\
|
|
pp.QuotedString("'", escChar='\\')
|
|
for klass in filt_rex:
|
|
f = pp.Literal("~%s" % klass.code) + pp.WordEnd() + rex.copy()
|
|
f.setParseAction(klass.make)
|
|
parts.append(f)
|
|
|
|
for klass in filt_int:
|
|
f = pp.Literal("~%s" % klass.code) + pp.WordEnd() + pp.Word(pp.nums)
|
|
f.setParseAction(klass.make)
|
|
parts.append(f)
|
|
|
|
# A naked rex is a URL rex:
|
|
f = rex.copy()
|
|
f.setParseAction(FUrl.make)
|
|
parts.append(f)
|
|
|
|
atom = pp.MatchFirst(parts)
|
|
expr = pp.operatorPrecedence(atom,
|
|
[(pp.Literal("!").suppress(),
|
|
1,
|
|
pp.opAssoc.RIGHT,
|
|
lambda x: FNot(*x)),
|
|
(pp.Literal("&").suppress(),
|
|
2,
|
|
pp.opAssoc.LEFT,
|
|
lambda x: FAnd(*x)),
|
|
(pp.Literal("|").suppress(),
|
|
2,
|
|
pp.opAssoc.LEFT,
|
|
lambda x: FOr(*x)),
|
|
])
|
|
expr = pp.OneOrMore(expr)
|
|
return expr.setParseAction(lambda x: FAnd(x) if len(x) != 1 else x)
|
|
bnf = _make()
|
|
|
|
|
|
def parse(s):
|
|
try:
|
|
filt = bnf.parseString(s, parseAll=True)[0]
|
|
filt.pattern = s
|
|
return filt
|
|
except pp.ParseException:
|
|
return None
|
|
except ValueError:
|
|
return None
|
|
|
|
|
|
help = []
|
|
for i in filt_unary:
|
|
help.append(
|
|
("~%s" % i.code, i.help)
|
|
)
|
|
for i in filt_rex:
|
|
help.append(
|
|
("~%s regex" % i.code, i.help)
|
|
)
|
|
for i in filt_int:
|
|
help.append(
|
|
("~%s int" % i.code, i.help)
|
|
)
|
|
help.sort()
|
|
help.extend(
|
|
[
|
|
("!", "unary not"),
|
|
("&", "and"),
|
|
("|", "or"),
|
|
("(...)", "grouping"),
|
|
]
|
|
)
|