forked from facelessuser/HexViewer
/
hex_inspector.py
executable file
·256 lines (206 loc) · 8.76 KB
/
hex_inspector.py
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"""
Hex Viewer.
Licensed under MIT
Copyright (c) 2011-2015 Isaac Muse <isaacmuse@gmail.com>
"""
import sublime
import sublime_plugin
import math
from struct import unpack
import HexViewer.hex_common as common
from binascii import unhexlify
hv_endianness = None
class HexShowInspectorCommand(sublime_plugin.WindowCommand):
"""Show the hex inspector panel."""
def is_enabled(self):
"""Check if command is enabled."""
return bool(common.is_enabled() and common.hv_settings("inspector", False))
def run(self):
"""Run the command."""
# Setup inspector window
view = self.window.get_output_panel('hex_viewer_inspector')
view.set_syntax_file("Packages/HexViewer/HexInspect.%s" % common.ST_SYNTAX)
view.settings().set("draw_white_space", "none")
view.settings().set("draw_indent_guides", False)
view.settings().set("gutter", False)
view.settings().set("line_numbers", False)
# Show
self.window.run_command("show_panel", {"panel": "output.hex_viewer_inspector"})
self.window.run_command("hex_inspector", {"reset": True})
class HexHideInspectorCommand(sublime_plugin.WindowCommand):
"""Hide the hex inspector panel."""
def is_enabled(self):
"""Check if command is enabled."""
return bool(common.is_enabled() and common.hv_settings("inspector", False))
def run(self):
"""Run the command."""
self.window.run_command("hide_panel", {"panel": "output.hex_viewer_inspector"})
class HexToggleInspectorEndiannessCommand(sublime_plugin.WindowCommand):
"""Toggle hex inspector's endianness."""
def is_enabled(self):
"""Check if command is enabled."""
return bool(common.is_enabled() and common.hv_settings("inspector", False))
def run(self):
"""Run the command."""
global hv_endianness
hv_endianness = "big" if hv_endianness == "little" else "little"
self.window.run_command('hex_highlighter')
class HexInspectGlobal(object):
"""Global hex inspector data."""
bfr = None
region = None
@classmethod
def clear(cls):
"""Clear."""
cls.bfr = None
cls.region = None
class HexInspectorApplyCommand(sublime_plugin.TextCommand):
"""Apply text to the hex inspector panel."""
def run(self, edit):
"""Run the command."""
self.view.replace(edit, HexInspectGlobal.region, HexInspectGlobal.bfr)
class HexInspectorCommand(sublime_plugin.WindowCommand):
"""Hex inspector command."""
def get_bytes(self, start, bytes_wide):
"""Get the bytes at the cursor."""
byte_str = self.view.substr(sublime.Region(start, start + 2))
byte64 = None
byte32 = None
byte16 = None
byte8 = None
start += 2
size = self.view.size()
count = 1
group_divide = 1
address = 12
ascii_divide = group_divide + bytes_wide + address + 1
target_bytes = 8
# Look for 64 bit worth of bytes
while start < size and count < target_bytes:
# Check if sitting on first nibble
if self.view.score_selector(start, 'raw.nibble.upper'):
byte_str += self.view.substr(sublime.Region(start, start + 2))
count += 1
start += 2
else:
# Must be at byte group falling edge; try and step over divider
start += group_divide
if start < size and self.view.score_selector(start, 'raw.nibble.upper'):
byte_str += self.view.substr(sublime.Region(start, start + 2))
count += 1
start += 2
# Must be at line end; try and step to next line
else:
start += ascii_divide
if start < size and self.view.score_selector(start, 'raw.nibble.upper'):
byte_str += self.view.substr(sublime.Region(start, start + 2))
count += 1
start += 2
else:
# No more bytes to check
break
byte8 = byte_str[0:2]
if count > 1:
byte16 = byte_str[0:4]
if count > 3:
byte32 = byte_str[0:8]
if count > 7:
byte64 = byte_str[0:16]
return byte8, byte16, byte32, byte64
def display(self, view, byte8, bytes16, bytes32, bytes64):
"""Display hex inspector data."""
item_dec = common.hv_settings("inspector_integer_format", "%-12s: %-14d")
item_str = common.hv_settings("inspector_missing/bad_format", "%-12s: %-14s")
item_float = common.hv_settings("insepctor_float_format", "%-12s: %-14e")
item_double = common.hv_settings("inspector_double_format", "%-12s: %-14e")
item_bin = common.hv_settings("inspector_binary_format", "%-12s: %-14s")
nl = "\n"
endian = ">" if self.endian == "big" else "<"
i_buffer = "%28s:%-28s" % ("Hex Inspector ", (" Big Endian" if self.endian == "big" else " Little Endian")) + nl
if byte8 is not None:
i_buffer += item_dec * 2 % (
"byte", unpack(endian + "B", unhexlify(byte8))[0],
"short", unpack(endian + "b", unhexlify(byte8))[0]
) + nl
else:
i_buffer += item_str * 2 % (
"byte", "--",
"short", "--"
) + nl
if bytes16 is not None:
i_buffer += item_dec * 2 % (
"word", unpack(endian + "H", unhexlify(bytes16))[0],
"int", unpack(endian + "h", unhexlify(bytes16))[0]
) + nl
else:
i_buffer += item_str * 2 % (
"word", "--",
"int", "--"
) + nl
if bytes32 is not None:
i_buffer += item_dec * 2 % (
"dword", unpack(endian + "I", unhexlify(bytes32))[0],
"longint", unpack(endian + "i", unhexlify(bytes32))[0]
) + nl
else:
i_buffer += item_str * 2 % (
"dword", "--",
"longint", "--"
) + nl
if bytes64 is not None:
i_buffer += item_dec * 2 % (
"qword", unpack(endian + "Q", unhexlify(bytes64))[0],
"longlongint", unpack(endian + "q", unhexlify(bytes64))[0]
) + nl
else:
i_buffer += item_str * 2 % (
"qword", "--",
"longlongint", "--"
) + nl
if bytes32 is not None:
s_float = unpack(endian + "f", unhexlify(bytes32))[0]
if math.isnan(s_float):
i_buffer += item_str % ("float", "NaN")
else:
i_buffer += item_float % (
"float", s_float
)
else:
i_buffer += item_str % ("float", "--")
if bytes64 is not None:
d_float = unpack(endian + "d", unhexlify(bytes64))[0]
if math.isnan(d_float):
i_buffer += item_str % ("double", "NaN") + nl
else:
i_buffer += item_double % (
"double", d_float
) + nl
else:
i_buffer += item_str % ("double", "--") + nl
if byte8 is not None:
i_buffer += item_bin % ("binary", '{0:08b}'.format(unpack(endian + "B", unhexlify(byte8))[0])) + nl
else:
i_buffer += item_str % ("binary", "--") + nl
# Update content
view.set_read_only(False)
HexInspectGlobal.bfr = i_buffer
HexInspectGlobal.region = sublime.Region(0, view.size())
view.run_command("hex_inspector_apply")
HexInspectGlobal.clear()
view.set_read_only(True)
view.sel().clear()
def is_enabled(self):
"""Check if the command is enabled."""
return common.is_enabled()
def run(self, first_byte=None, bytes_wide=None, reset=False):
"""Run the command."""
self.view = self.window.active_view()
self.endian = hv_endianness
byte8, bytes16, bytes32, bytes64 = None, None, None, None
if not reset and first_byte is not None and bytes_wide is not None:
byte8, bytes16, bytes32, bytes64 = self.get_bytes(int(first_byte), int(bytes_wide))
self.display(self.window.get_output_panel('hex_viewer_inspector'), byte8, bytes16, bytes32, bytes64)
def plugin_loaded():
"""Setup plugin."""
global hv_endianness
hv_endianness = common.hv_settings("inspector_endian", "little")