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import os
from typing import Callable, Optional
import urwid
from mitmproxy.tools.console import signals
from mitmproxy.tools.console.grideditor import base
from mitmproxy.utils import strutils
def read_file(filename: str, callback: Callable[..., None], escaped: bool) -> Optional[str]:
if not filename:
return None
filename = os.path.expanduser(filename)
try:
with open(filename, "r" if escaped else "rb") as f:
d = f.read()
except IOError as v:
return str(v)
if escaped:
try:
d = strutils.escaped_str_to_bytes(d)
except ValueError:
return "Invalid Python-style string encoding."
# TODO: Refactor the status_prompt_path signal so that we
# can raise exceptions here and return the content instead.
callback(d)
return None
class Column(base.Column):
def Display(self, data):
return Display(data)
def Edit(self, data):
return Edit(data)
def blank(self):
return b""
def keypress(self, key, editor):
if key == "r":
if editor.walker.get_current_value() is not None:
signals.status_prompt_path.send(
self,
prompt="Read file",
callback=read_file,
args=(editor.walker.set_current_value, True)
)
elif key == "R":
if editor.walker.get_current_value() is not None:
signals.status_prompt_path.send(
self,
prompt="Read unescaped file",
callback=read_file,
args=(editor.walker.set_current_value, False)
)
elif key == "e":
o = editor.walker.get_current_value()
if o is not None:
n = editor.master.spawn_editor(o)
n = strutils.clean_hanging_newline(n)
editor.walker.set_current_value(n)
elif key in ["enter"]:
editor.walker.start_edit()
else:
return key
class Display(base.Cell):
def __init__(self, data: bytes) -> None:
self.data = data
escaped = strutils.bytes_to_escaped_str(data)
w = urwid.Text(escaped, wrap="any")
super().__init__(w)
def get_data(self) -> bytes:
return self.data
class Edit(base.Cell):
def __init__(self, data: bytes) -> None:
data = strutils.bytes_to_escaped_str(data)
w = urwid.Edit(edit_text=data, wrap="any", multiline=True)
w = urwid.AttrWrap(w, "editfield")
super().__init__(w)
def get_data(self) -> bytes:
txt = self._w.get_text()[0].strip()
try:
return strutils.escaped_str_to_bytes(txt)
except ValueError:
signals.status_message.send(
self,
message="Invalid Python-style string encoding.",
expire=1000
)
raise
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