forked from facelessuser/HexViewer
/
hex_writer.py
executable file
·194 lines (167 loc) · 6.63 KB
/
hex_writer.py
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"""
Hex Viewer
Licensed under MIT
Copyright (c) 2011 Isaac Muse <isaacmuse@gmail.com>
"""
import sublime
import sublime_plugin
from os.path import dirname, exists
from HexViewer.hex_common import *
from HexViewer.hex_checksum import checksum, parse_view_data
import threading
import traceback
from io import StringIO
from HexViewer.hex_notify import notify, error
USE_CHECKSUM_ON_SAVE = True
WRITE_GOOD = 0
WRITE_FAIL = 1
active_thread = None
class ThreadedWrite(threading.Thread):
def __init__(self, data, file_name, fmt_callback=None, count=None):
self.data = data
self.file_name = file_name
self.chunk = 0
self.chunks = len(data) if count is None else count
self.abort = False
self.fmt_callback = fmt_callback if fmt_callback is not None else self.format
self.status = WRITE_GOOD
threading.Thread.__init__(self)
def format(self, data):
for x in data:
yield x
def run(self):
try:
with open(self.file_name, "wb") as f:
for chunk in self.fmt_callback(self.data):
self.chunk += 1
if self.abort:
return
else:
f.write(chunk)
except:
self.status = WRITE_FAIL
print(str(traceback.format_exc()))
class HexWriterAbortCommand(sublime_plugin.WindowCommand):
def run(self):
global active_thread
if active_thread is not None and active_thread.is_alive():
active_thread.abort = True
def is_enabled(self):
global active_thread
return active_thread is not None and active_thread.is_alive()
class HexWriterCommand(sublime_plugin.WindowCommand):
export_path = ""
handshake = -1
def is_enabled(self):
global active_thread
view = self.window.active_view()
return (
is_enabled() and
view is not None and not view.settings().get("hex_viewer_fake", False) and
not (active_thread is not None and active_thread.is_alive())
)
def export_panel(self):
self.window.show_input_panel(
"Export To:",
self.export_path,
self.prepare_export,
None,
self.reset
)
def overwrite(self, value):
if value.strip().lower() == "yes":
self.export()
else:
self.export_path = self.view.settings().get("hex_viewer_file_name")
self.export_panel()
def prepare_export(self, file_path):
self.export_path = file_path
if exists(dirname(file_path)):
if exists(file_path):
self.window.show_input_panel(
"Overwrite File? (yes | no):",
"no",
self.overwrite,
None,
self.reset
)
else:
self.export()
else:
error("Directory does not exist!")
self.export_path = self.view.settings().get("hex_viewer_file_name")
self.export_panel()
def reset_thread(self):
self.thread = None
def finish_export(self):
if hv_settings("checksum_on_save", USE_CHECKSUM_ON_SAVE):
hex_hash = checksum()
self.hex_buffer.seek(0)
# Checksum will be threaded and will show the result when done
sublime.set_timeout(lambda: sublime.status_message("Checksumming..."), 0)
hex_hash.threaded_update(self.hex_buffer, parse_view_data, self.row)
# Update the tab name
self.view.set_name(basename(self.export_path) + ".hex")
# Update the internal path
self.view.settings().set("hex_viewer_file_name", self.export_path)
# Tie it to a real view if not already
self.view.settings().set("hex_viewer_fake", False)
# Clear the marked edits
clear_edits(self.view)
# Reset class
self.reset()
def export_thread(self):
ratio = float(self.thread.chunk) / float(self.thread.chunks)
percent = int(ratio * 10)
leftover = 10 - percent
message = "[" + "-" * percent + ">" + "-" * leftover + ("] %3d%%" % int(ratio * 100)) + " chunks written"
sublime.status_message(message)
if not self.thread.is_alive():
if self.thread.abort is True:
notify("Write aborted!")
sublime.set_timeout(lambda: self.reset_thread(), 500)
else:
status = self.thread.status
self.reset_thread()
if status == WRITE_GOOD:
sublime.set_timeout(lambda: self.finish_export(), 500)
else:
error("Failed to export to " + self.export_path)
else:
sublime.set_timeout(lambda: self.export_thread(), 500)
def export(self):
global active_thread
self.view = self.window.active_view()
if self.handshake != -1 and self.handshake == self.view.id():
try:
sublime.set_timeout(lambda: sublime.status_message("Writing..."), 0)
self.row = self.view.rowcol(self.view.size())[0] - 1
self.hex_buffer = StringIO(self.view.substr(sublime.Region(0, self.view.size())))
self.thread = ThreadedWrite(self.hex_buffer, self.export_path, parse_view_data, self.row)
self.thread.start()
self.export_thread()
active_thread = self.thread
except:
print(str(traceback.format_exc()))
error("Failed to export to " + self.export_path)
self.reset()
return
else:
error("Hex view is no longer in focus! File not saved.")
self.reset()
def reset(self):
self.export_path = ""
self.handshake = -1
self.reset_thread()
def run(self):
global active_thread
if active_thread is not None and active_thread.is_alive():
error("HexViewer is already exporting a file!\nPlease run the abort command to stop the current export.")
else:
self.view = self.window.active_view()
# Identify view
if self.handshake != -1 and self.handshake == self.view.id():
self.reset()
self.handshake = self.view.id()
self.export_path = self.view.settings().get("hex_viewer_file_name")
self.export_panel()