"""
Dwarf - Copyright (C) 2018-2020 Giovanni Rocca (iGio90)
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 <https://www.gnu.org/licenses/>
"""
import json
from PyQt5.QtCore import Qt, pyqtSignal
from PyQt5.QtGui import QStandardItemModel, QStandardItem
from PyQt5.QtWidgets import QHeaderView, QTabWidget, QMenu
from dwarf_debugger.lib import utils
from dwarf_debugger.ui.widgets.list_view import DwarfListView
class ContextWidget(QTabWidget):
# consts
CONTEXT_TYPE_NATIVE = 0
CONTEXT_TYPE_JAVA = 1
onShowMemoryRequest = pyqtSignal(str, name='onShowMemoryRequest')
def __init__(self, parent=None):
super(ContextWidget, self).__init__(parent=parent)
self._app_window = parent
self.setAutoFillBackground(True)
self._app_window.dwarf.onContextChanged.connect(self._on_context_changed)
self._nativectx_model = QStandardItemModel(0, 4)
self._nativectx_model.setHeaderData(0, Qt.Horizontal, 'Reg')
self._nativectx_model.setHeaderData(0, Qt.Horizontal, Qt.AlignCenter, Qt.TextAlignmentRole)
self._nativectx_model.setHeaderData(1, Qt.Horizontal, 'Value')
self._nativectx_model.setHeaderData(1, Qt.Horizontal, Qt.AlignCenter, Qt.TextAlignmentRole)
self._nativectx_model.setHeaderData(2, Qt.Horizontal, 'Decimal')
self._nativectx_model.setHeaderData(3, Qt.Horizontal, 'Telescope')
self._nativectx_list = DwarfListView()
self._nativectx_list.setModel(self._nativectx_model)
self._nativectx_list.header().setSectionResizeMode(0, QHeaderView.ResizeToContents)
self._nativectx_list.header().setSectionResizeMode(1, QHeaderView.ResizeToContents)
self._nativectx_list.header().setSectionResizeMode(2, QHeaderView.ResizeToContents)
self._nativectx_list.setContextMenuPolicy(Qt.CustomContextMenu)
self._nativectx_list.customContextMenuRequested.connect(self._on_native_contextmenu)
self._javactx_model = QStandardItemModel(0, 3)
self._javactx_model.setHeaderData(0, Qt.Horizontal, 'Argument')
self._javactx_model.setHeaderData(0, Qt.Horizontal, Qt.AlignCenter,
Qt.TextAlignmentRole)
self._javactx_model.setHeaderData(1, Qt.Horizontal, 'Class')
self._javactx_model.setHeaderData(2, Qt.Horizontal, 'Value')
self._javactx_list = DwarfListView()
self._javactx_list.setModel(self._javactx_model)
self._javactx_list.header().setSectionResizeMode(
0, QHeaderView.ResizeToContents)
self._javactx_list.header().setSectionResizeMode(
1, QHeaderView.ResizeToContents)
self._javactx_list.header().setSectionResizeMode(
2, QHeaderView.ResizeToContents)
self._javactx_list.setContextMenuPolicy(Qt.CustomContextMenu)
self._javactx_list.customContextMenuRequested.connect(
self._on_java_contextmenu)
self.addTab(self._nativectx_list, 'Native')
self.show_context_tab('Native')
# ************************************************************************
# **************************** Functions *********************************
# ************************************************************************
def clear(self):
self._nativectx_list.clear()
self._javactx_list.clear()
def set_context(self, ptr, context_type, context):
if isinstance(context, str):
context = json.loads(context)
if context_type == ContextWidget.CONTEXT_TYPE_NATIVE:
self._nativectx_list.clear()
self._set_native_context(ptr, context)
elif context_type == ContextWidget.CONTEXT_TYPE_JAVA:
self._javactx_list.clear()
self._set_java_context(ptr, context)
else:
raise Exception('unknown context type')
def have_context(self):
return self.count() > 0
def show_context_tab(self, tab_name):
index = 0
tab_name = tab_name.join(tab_name.split()).lower()
if tab_name == 'native':
index = self.indexOf(self._nativectx_list)
elif tab_name == 'java':
index = self.indexOf(self._javactx_list)
if self.count() > 0:
self.setCurrentIndex(index)
def _set_native_context(self, ptr, context):
if self.indexOf(self._nativectx_list) == -1:
self.addTab(self._nativectx_list, 'Native')
self.show_context_tab('Native')
else:
self.show_context_tab('Native')
context_ptr = ptr
sorted_regs = self.get_sort_order()
for register in sorted(context, key=lambda x: sorted_regs[x] if x in sorted_regs else len(sorted_regs)):
reg_name = QStandardItem()
reg_name.setTextAlignment(Qt.AlignCenter)
if context[register]['isValidPointer']:
reg_name.setData(context_ptr, Qt.UserRole + 1)
value_x = QStandardItem()
if context[register]['isValidPointer']:
value_x.setForeground(Qt.red)
value_dec = QStandardItem()
telescope = QStandardItem()
reg_name.setText(register)
if context[register] is not None:
str_fmt = '0x{0:x}'
if self._nativectx_list.uppercase_hex:
str_fmt = '0x{0:X}'
value_x.setText(
str_fmt.format(int(context[register]['value'], 16)))
value_dec.setText('{0:d}'.format(
int(context[register]['value'], 16)))
if context[register]['isValidPointer']:
if 'telescope' in context[register] and context[register][
'telescope'] is not None:
telescope = QStandardItem()
telescope_value = str(context[register]['telescope'][1]).replace('\n', ' ')
if len(telescope_value) > 50:
telescope_value = telescope_value[:50] + '...'
telescope.setText(telescope_value)
if context[register]['telescope'][0] == 2:
telescope.setData(
context[register]['telescope'][1],
Qt.UserRole + 1)
if context[register]['telescope'][0] == 0:
telescope.setForeground(Qt.darkGreen)
elif context[register]['telescope'][0] == 2:
telescope.setForeground(Qt.white)
elif context[register]['telescope'][0] != 1:
telescope.setForeground(Qt.darkGray)
self._nativectx_model.appendRow(
[reg_name, value_x, value_dec, telescope])
self._nativectx_list.resizeColumnToContents(0)
def _set_java_context(self, ptr, context):
if self.indexOf(self._javactx_list) == -1:
self.addTab(self._javactx_list, 'Java')
self.show_context_tab('Java')
else:
self.show_context_tab('Java')
for arg in context:
_arg = QStandardItem()
_arg.setText(arg)
_class = QStandardItem()
_class.setText(context[arg]['className'])
if isinstance(context[arg]['handle'], str):
_class.setForeground(Qt.lightGray)
_value = QStandardItem()
if 'arg' not in context[arg] or context[arg]['arg'] is None:
_value.setText('null')
_value.setForeground(Qt.gray)
else:
_value.setText(context[arg]['arg'])
self._javactx_model.appendRow([_arg, _class, _value])
self._javactx_list.resizeColumnToContents(0)
self._javactx_list.resizeColumnToContents(1)
def get_sort_order(self):
reg_order = []
if self._app_window.dwarf.arch == 'arm': # arm
reg_order = [
'r0', 'r1', 'r2', 'r3', 'r4', 'r5', 'r6', 'r7', 'r8', 'r9',
'r10', 'r11', 'r12', 'r13', 'r14', 'r15', 'sp', 'lr', 'sb',
'sl', 'fp', 'ip', 'pc', 'cspr'
]
elif self._app_window.dwarf.arch == 'arm64':
reg_order = [
'x0', 'x1', 'x2', 'x3', 'x4', 'x5', 'x6', 'x7', 'x8', 'x9',
'x10', 'x11', 'x12', 'x13', 'x14', 'x15', 'x16', 'x17', 'x18',
'x19', 'x20', 'x21', 'x22', 'x23', 'x24', 'x25', 'x26', 'x27',
'x28', 'x29', 'x30', 'w0', 'w1', 'w2', 'w3', 'w4', 'w5', 'w6',
'w7', 'w8', 'w9', 'w10', 'w11', 'w12', 'w13', 'w14', 'w15',
'w16', 'w17', 'w18', 'w19', 'w20', 'w21', 'w22', 'w23', 'w24',
'w25', 'w26', 'w27', 'w28', 'w29', 'w30', 'sp', 'lr', 'fp',
'wsp', 'wzr', 'xzr', 'nzcv', 'ip0', 'ip1', 's0', 's1', 's2',
's3', 's4', 's5', 's6', 's7', 's8', 's9', 's10', 's11', 's12',
's13', 's14', 's15', 's16', 's17', 's18', 's19', 's20', 's21',
's22', 's23', 's24', 's25', 's26', 's27', 's28', 's29', 's30',
's31', 'd0', 'd1', 'd2', 'd3', 'd4', 'd5', 'd6', 'd7', 'd8',
'd9', 'd10', 'd11', 'd12', 'd13', 'd14', 'd15', 'd16', 'd17',
'd18', 'd19', 'd20', 'd21', 'd22', 'd23', 'd24', 'd25', 'd26',
'd27', 'd28', 'd29', 'd30', 'd31', 'q0', 'q1', 'q2', 'q3',
'q4', 'q5', 'q6', 'q7', 'q8', 'q9', 'q10', 'q11', 'q12', 'q13',
'q14', 'q15', 'q16', 'q17', 'q18', 'q19', 'q20', 'q21', 'q22',
'q23', 'q24', 'q25', 'q26', 'q27', 'q28', 'q29', 'q30', 'q31',
'sp', 'lr', 'sb', 'sl', 'fp', 'ip', 'pc', 'cspr'
]
elif self._app_window.dwarf.arch == 'ia32':
reg_order = [
'eax', 'ebx', 'ecx', 'edx', 'esi', 'edi', 'esp', 'r8d', 'r9d',
'r10d', 'r11d', 'r12d', 'r13d', 'r14d', 'r15d', 'ebp', 'eip',
'sp', 'pc'
]
elif self._app_window.dwarf.arch == 'x64': # x64
reg_order = [
'rax', 'rbx', 'rcx', 'rdx', 'rsi', 'rdi', 'rbp', 'rsp', 'r8',
'r9', 'r10', 'r11', 'r12', 'r13', 'r14', 'r15', 'esp', 'ebp',
'rip', 'eip', 'sp', 'pc'
]
sorted_regs = {b: i for i, b in enumerate(reg_order)}
return sorted_regs
# ************************************************************************
# **************************** Handlers **********************************
# ************************************************************************
def _on_native_contextmenu(self, pos):
index = self._nativectx_list.indexAt(pos).row()
glbl_pt = self._nativectx_list.mapToGlobal(pos)
context_menu = QMenu(self)
if index != -1:
item = self._nativectx_model.item(index, 1)
dec = self._nativectx_model.item(index, 2)
telescope = self._nativectx_model.item(index, 3)
# show contextmenu
if self._nativectx_model.item(index, 0).data(Qt.UserRole + 1):
context_menu.addAction('Jump to {0}'.format(item.text()), lambda: self._app_window.jump_to_address(item.text()))
context_menu.addSeparator()
# copy menu
context_sub_menu = QMenu('Copy', context_menu)
context_sub_menu.addAction('Value', lambda: utils.copy_str_to_clipboard(item.text()))
if dec.text():
context_sub_menu.addAction('Decimal', lambda: utils.copy_str_to_clipboard(dec.text()))
if telescope.text():
context_sub_menu.addAction('Telescope', lambda: utils.copy_str_to_clipboard(telescope.text()))
context_menu.addMenu(context_sub_menu)
context_menu.exec_(glbl_pt)
def _on_java_contextmenu(self, pos):
index = self._javactx_list.indexAt(pos).row()
glbl_pt = self._javactx_list.mapToGlobal(pos)
context_menu = QMenu(self)
if index != -1:
# show contextmenu
argument = self._javactx_model.item(index, 1)
_class = self._javactx_model.item(index, 2)
value = self._javactx_model.item(index, 3)
context_sub_menu = QMenu('Copy', context_menu)
context_sub_menu.addAction('Argument', lambda: utils.copy_str_to_clipboard(argument.text()))
if _class.text():
context_sub_menu.addAction('Class', lambda: utils.copy_str_to_clipboard(_class.text()))
if value:
if value.text():
context_sub_menu.addAction('Value', lambda: utils.copy_str_to_clipboard(value.text()))
context_menu.addMenu(context_sub_menu)
context_menu.exec_(glbl_pt)
def _on_context_changed(self, reg_name, reg_val):
x_in = 0
for c in reg_val:
if c.lower() not in '1234567890abcdef':
if c.lower() == 'x' and x_in == 0:
x_in += 1
continue
self._app_window.dwarf.onLogToConsole.emit('error: invalid reg_value: ' + reg_val + ' - expected dec/hex')
return
if isinstance(reg_val, str) and reg_val.startswith('0x'):
try:
reg_val = int(reg_val, 16)
except ValueError:
self._app_window.dwarf.onLogToConsole.emit('error: invalid reg_value: ' + reg_val + ' - expected dec/hex')
return
try:
reg_val = int(reg_val)
except ValueError:
self._app_window.dwarf.onLogToConsole.emit('error: invalid reg_value: ' + reg_val + ' - expected dec/hex')
return
reg_val = hex(reg_val)
was_found, find_result = self._nativectx_list.contains_text(reg_name, True, True, True)
if was_found:
if len(find_result) == 1:
find_result = find_result[0]
if self._nativectx_model.item(find_result[0], 0).text() == reg_name:
str_fmt = '0x{0:x}'
if self._nativectx_list.uppercase_hex:
str_fmt = '0x{0:X}'
value_x = str_fmt.format(int(reg_val, 16))
value_dec = '{0:d}'.format(int(reg_val, 16))
self._nativectx_model.item(find_result[0], 1).setText(value_x)
self._nativectx_model.item(find_result[0], 2).setText(value_dec)
self._nativectx_model.item(find_result[0], 3).setText("")
