2 # -*- mode: python; coding: utf-8; -*-
5 import argparse, errno, gettext, os, re, readline, subprocess, sys, tempfile, textwrap, threading
8 if sys.version_info[0] == 2:
10 from tkMessageBox import *
12 from ScrolledText import *
16 def input_string (prompt=""):
17 return raw_input (prompt)
20 def gettext_install ():
21 gettext.install ("crypto-install", unicode = True)
22 elif sys.version_info[0] > 2:
24 from tkinter.messagebox import *
25 from tkinter.tix import *
26 from tkinter.scrolledtext import *
30 def input_string (prompt=""):
34 def gettext_install ():
35 gettext.install ("crypto-install")
37 raise Exception ("Unsupported Python version {}".format (sys.version_info))
41 return textwrap.dedent (text).strip ()
45 return textwrap.dedent (text).lstrip ()
49 return textwrap.fill (dedented (text), width = 72)
53 return textwrap.fill (ldedented (text), width = 72)
56 def read_input_string (prompt = "", default = ""):
58 readline.set_startup_hook (lambda: readline.insert_text (default))
61 return input_string(prompt)
63 readline.set_startup_hook()
66 def parse_arguments ():
67 parser = argparse.ArgumentParser ()
72 version = "crypto-install.py version GIT-TAG (GIT-COMMIT/GIT-BRANCH)",
73 help = _ ("Display version."))
77 action = "store_false",
78 help = _ ("Disable GUI, use text interface."))
79 gnupg_group = parser.add_argument_group (
81 _ ("Options related to the GnuPG setup."))
82 gnupg_group.add_argument (
85 action = "store_false",
86 help = "Disable GnuPG setup.")
87 gnupg_group.add_argument (
90 default = os.getenv("GNUPGHOME") or "~/.gnupg",
92 help = _ ("Default directory for GnuPG files."))
93 openssh_group = parser.add_argument_group (
95 _ ("Options related to the OpenSSH setup."))
96 openssh_group.add_argument (
99 action = "store_false",
100 help = _ ("Disable OpenSSH setup."))
101 openssh_group.add_argument (
103 dest = "openssh_home",
106 help = _ ("Default directory for OpenSSH files."))
107 return parser.parse_args ()
110 def ensure_directories (path, mode = 0o777):
112 os.makedirs (path, mode)
113 except OSError as exception:
114 if exception.errno != errno.EEXIST:
119 return os.getenv ("FULLNAME")
122 def default_email ():
123 return os.getenv ("EMAIL")
126 def default_comment ():
130 def default_hostname ():
131 return subprocess.check_output ("hostname").strip ()
134 def default_username ():
135 return os.getenv ("USER")
138 def valid_email (value):
139 return re.match (".+@.+", value)
142 def valid_name (value):
143 return value.strip () != ""
146 def valid_comment (value):
150 def gnupg_exists (arguments):
151 gnupg_home = os.path.expanduser (arguments.gnupg_home)
152 gnupg_secring = os.path.join (gnupg_home, "secring.gpg")
154 return os.path.exists (gnupg_secring)
157 def openssh_exists (arguments):
158 openssh_home = os.path.expanduser (arguments.openssh_home)
159 openssh_config = os.path.join (openssh_home, "config")
160 openssh_key = os.path.join (openssh_home, "id_rsa")
162 return os.path.exists (openssh_config) and os.path.exists (openssh_key)
165 # TODO: verify phrase at least once
166 # TODO: use better labels
167 def input_passphrase (arguments):
168 batch_passphrase = ldedented ("""
172 """).format (subprocess.check_output ("tty").strip (),
175 batch_env = dict (os.environ)
177 batch_passphrase += ldedented ("""
180 """).format (os.getenv ("XAUTHORITY"),
181 os.getenv ("DISPLAY"))
183 del batch_env["DISPLAY"]
185 batch_passphrase += \
186 "GET_PASSPHRASE --data --check --qualitybar X X Passphrase X\n"
188 passphrase_process = subprocess.Popen (["gpg-agent", "--server"],
189 stdin = subprocess.PIPE,
190 stdout = subprocess.PIPE,
191 stderr = subprocess.PIPE,
193 (stdout, stderr) = passphrase_process.communicate (batch_passphrase.encode ("UTF-8"))
195 if passphrase_process.returncode != 0:
196 raise Exception ("Couldn't read passphrase.")
198 for line in stdout.splitlines ():
199 if line.decode ("UTF-8").startswith ("D "):
205 def redirect_to_stdout (process):
206 # TODO: argh. there has to be a better way
207 process.stdin.close ()
208 while process.poll () is None:
209 sys.stdout.write (process.stdout.readline ())
212 line = process.stdout.readline ()
215 sys.stdout.write (line.decode ("UTF-8"))
218 def gnupg_setup (arguments, name = None, email = None, comment = None):
219 gnupg_home = os.path.expanduser (arguments.gnupg_home)
220 gnupg_secring = os.path.join (gnupg_home, "secring.gpg")
222 if gnupg_exists (arguments):
223 print (_ ("GnuPG secret keyring already exists at '{}'.")
224 .format (gnupg_secring))
227 if not arguments.gui:
228 print (filled (_ ("""
229 No default GnuPG key available. Please enter your information to
230 create a new key.""")))
232 name = read_input_string (_ ("What is your name (e.g. 'John Doe')? "),
235 email = read_input_string (dedented (_ ("""
236 What is your email address (e.g. 'test@example.com')? """)),
239 comment = read_input_string (dedented (_ ("""
240 What is your comment phrase, if any (e.g. 'key for 2014')? """)),
243 if not os.path.exists (gnupg_home):
244 print (_ ("Creating GnuPG directory at '{}'.").format (gnupg_home))
245 ensure_directories (gnupg_home, 0o700)
247 with tempfile.NamedTemporaryFile () as tmp:
248 batch_key = ldedented ("""
257 """).format (name, email)
260 batch_key += "Name-Comment: {}\n".format (comment)
262 tmp.write (batch_key.encode ("UTF-8"))
265 batch_env = dict (os.environ)
266 if not arguments.gui:
267 del batch_env["DISPLAY"]
269 gnupg_process = subprocess.Popen (["gpg2",
270 "--homedir", gnupg_home,
271 "--batch", "--gen-key", tmp.name],
272 stdin = subprocess.PIPE,
273 stdout = subprocess.PIPE,
274 stderr = subprocess.STDOUT,
277 redirect_to_stdout (gnupg_process)
279 if gnupg_process.returncode != 0:
280 raise Exception ("Couldn't create GnuPG key.")
283 def openssh_setup (arguments, comment = None):
284 openssh_home = os.path.expanduser (arguments.openssh_home)
285 openssh_config = os.path.join (openssh_home, "config")
287 if not os.path.exists (openssh_config):
288 print (_ ("Creating OpenSSH directory at '{}'.").format (openssh_home))
289 ensure_directories (openssh_home, 0o700)
291 print (_ ("Creating OpenSSH configuration at '{}'.")
292 .format (openssh_config))
293 with open (openssh_config, "w") as config:
294 config.write (ldedented ("""
299 openssh_key = os.path.join (openssh_home, "id_rsa")
301 if os.path.exists (openssh_key):
302 print (_ ("OpenSSH key already exists at '{}'.").format (openssh_key))
305 openssh_key_dsa = os.path.join (openssh_home, "id_dsa")
307 if os.path.exists (openssh_key_dsa):
308 print (_ ("OpenSSH key already exists at '{}'.").format (openssh_key_dsa))
311 print (filled (_ ("No OpenSSH key available. Generating new key.")))
313 if not arguments.gui:
314 comment = "{}@{}".format (default_username (), default_hostname ())
315 comment = read_input_string (ldedented (_ ("""
316 What is your comment phrase (e.g. 'user@mycomputer')? """)), comment)
318 passphrase = input_passphrase (arguments)
320 batch_env = dict (os.environ)
321 if not arguments.gui:
322 del batch_env["DISPLAY"]
324 # TODO: is it somehow possible to pass the password on stdin?
325 openssh_process = subprocess.Popen (["ssh-keygen",
329 stdin = subprocess.PIPE,
330 stdout = subprocess.PIPE,
331 stderr = subprocess.STDOUT,
334 redirect_to_stdout (openssh_process)
336 if openssh_process.returncode != 0:
337 raise Exception ("Couldn't create OpenSSH key.")
340 # http://www.blog.pythonlibrary.org/2014/07/14/tkinter-redirecting-stdout-stderr/
341 # http://www.virtualroadside.com/blog/index.php/2012/11/10/glib-idle_add-for-tkinter-in-python/
342 class RedirectText (object):
343 def __init__ (self, root, widget):
347 self.queue = Queue ()
349 def write (self, string):
350 self.widget.insert (END, string)
352 def enqueue (self, value):
353 self.queue.put (value)
354 self.root.event_generate ("<<Idle>>", when = "tail")
357 class CryptoInstallProgress (Toplevel):
358 def __init__ (self, parent):
359 Toplevel.__init__ (self, parent)
363 self.create_widgets ()
365 def create_widgets (self):
366 self.balloon = Balloon (self, initwait = 250)
368 self.text = ScrolledText (self)
369 self.text.pack (fill = BOTH, expand = True)
371 self.redirect = RedirectText (self.parent, self.text)
373 self._quit = Button (self,
376 self.balloon.bind_widget (self._quit,
377 msg = _ ("Quit the program immediately"))
381 class CryptoInstall (Tk):
382 def __init__ (self, arguments):
385 self.arguments = arguments
387 self.resizable (width = False, height = False)
388 self.title (_ ("Crypto Install Wizard"))
390 self.create_widgets ()
392 def create_widgets (self):
393 self.balloon = Balloon (self, initwait = 250)
395 self.info_frame = Frame (self)
396 self.info_frame.pack (fill = X)
398 self.user_label = Label (self.info_frame, text = ("Username"))
399 self.user_label.grid ()
401 self.user_var = StringVar (self, default_username ())
402 self.user_var.trace ("w", self.update_widgets)
404 self.user = Entry (self.info_frame, textvariable = self.user_var,
406 self.balloon.bind_widget (self.user, msg = dedented (_ ("""
407 Username on the local machine (e.g. 'user')
409 self.user.grid (row = 0, column = 1)
411 self.host_label = Label (self.info_frame, text = _ ("Host Name"))
412 self.host_label.grid ()
414 self.host_var = StringVar (self, default_hostname ())
415 self.host_var.trace ("w", self.update_widgets)
417 self.host = Entry (self.info_frame, textvariable = self.host_var,
419 self.balloon.bind_widget (self.host, msg = dedented (_ ("""
420 Host name of the local machine (e.g. 'mycomputer')
422 self.host.grid (row = 1, column = 1)
424 self.name_label = Label (self.info_frame, text = _ ("Full Name"))
425 self.name_label.grid ()
427 self.name_var = StringVar (self, default_name ())
428 self.name_var.trace ("w", self.update_widgets)
430 self.name = Entry (self.info_frame, textvariable = self.name_var)
431 self.balloon.bind_widget (self.name, msg = dedented (_ ("""
432 Full name as it should appear in the key description (e.g. 'John Doe')
434 self.name.grid (row = 2, column = 1)
436 self.email_label = Label (self.info_frame, text = _ ("Email address"))
437 self.email_label.grid ()
439 self.email_var = StringVar (self, default_email ())
440 self.email_var.trace ("w", self.update_widgets)
442 self.email = Entry (self.info_frame, textvariable = self.email_var)
443 self.balloon.bind_widget (self.email, msg = dedented (_ ("""
444 Email address associated with the name (e.g. '<test@example.com>')
446 self.email.grid (row = 3, column = 1)
448 self.comment_label = Label (self.info_frame, text = _ ("Comment phrase"))
449 self.comment_label.grid ()
451 self.comment_var = StringVar (self, default_comment ())
452 self.comment_var.trace ("w", self.update_widgets)
454 self.comment = Entry (self.info_frame, textvariable = self.comment_var)
455 self.balloon.bind_widget (self.comment, msg = dedented (_ ("""
456 Comment phrase for the GnuPG key, if any (e.g. 'key for 2014')
458 self.comment.grid (row = 4, column = 1)
460 self.options_frame = Frame (self)
461 self.options_frame.pack (fill = X)
463 self.gnupg_label = Label (self.options_frame,
464 text = _ ("Generate GnuPG key"))
465 self.gnupg_label.grid ()
467 self.gnupg_var = IntVar (self, 1 if self.arguments.gnupg else 0)
468 self.gnupg_var.trace ("w", self.update_widgets)
470 self.gnupg = Checkbutton (self.options_frame,
471 variable = self.gnupg_var)
472 self.gnupg.grid (row = 0, column = 1)
474 self.openssh_label = Label (self.options_frame,
475 text = _ ("Generate OpenSSH key"))
476 self.openssh_label.grid ()
478 self.openssh_var = IntVar (self, 1 if self.arguments.openssh else 0)
479 self.openssh_var.trace ("w", self.update_widgets)
481 self.openssh = Checkbutton (self.options_frame,
482 variable = self.openssh_var)
483 self.openssh.grid (row = 1, column = 1)
485 self.button_frame = Frame (self)
486 self.button_frame.pack (fill = X)
488 self._generate = Button (self.button_frame, text = _ ("Generate Keys"),
489 command = self.generate)
490 self.balloon.bind_widget (
492 msg = _ ("Generate the keys as configured above"))
493 self._generate.pack (side = LEFT, fill = Y)
495 self._quit = Button (self.button_frame, text = _ ("Quit"),
497 self.balloon.bind_widget (self._quit,
498 msg = _ ("Quit the program immediately"))
499 self._quit.pack (side = LEFT)
501 self.update_widgets ()
503 def valid_state (self):
504 if not self.openssh_var.get () and not self.gnupg_var.get ():
507 if gnupg_exists (self.arguments) and openssh_exists (self.arguments):
510 if not valid_email (self.email_var.get ()):
513 if not valid_name (self.name_var.get ()):
516 if not valid_comment (self.comment_var.get ()):
521 def update_widgets (self, *args):
522 valid = self.valid_state ()
524 self._generate["state"] = NORMAL if valid else DISABLED
526 name = self.name_var.get ()
528 valid = valid_name (name)
529 self.name["fg"] = "black" if valid else "red"
530 self.name_label["fg"] = "black" if valid else "red"
532 email = self.email_var.get ()
534 valid = valid_email (email)
535 self.email["fg"] = "black" if valid else "red"
536 self.email_label["fg"] = "black" if valid else "red"
538 comment = self.comment_var.get ()
540 valid = valid_comment (comment)
541 self.comment["fg"] = "black" if valid else "red"
542 self.comment_label["fg"] = "black" if valid else "red"
544 exists = gnupg_exists (self.arguments)
545 self.gnupg["state"] = NORMAL if not exists else DISABLED
547 exists = openssh_exists (self.arguments)
548 self.openssh["state"] = NORMAL if not exists else DISABLED
551 if comment.strip () != "":
552 gnupg_key + " ({}) ".format (comment)
553 gnupg_key += "<{}>".format (email)
555 user = self.user_var.get ()
556 host = self.host_var.get ()
558 openssh_key = "{}@{}".format (user, host)
560 msg = dedented (_ ("""
561 Generate a GnuPG key for '{}' and configure a default setup for it
562 """)).format (gnupg_key)
564 self.balloon.bind_widget (self.gnupg, msg = msg)
565 self.balloon.bind_widget (self.gnupg_label, msg = msg)
567 msg = dedented (_ ("""
568 Generate an OpenSSH key for '{}' and configure a default setup for it
569 """)).format (openssh_key)
571 self.balloon.bind_widget (self.openssh, msg = msg)
572 self.balloon.bind_widget (self.openssh_label, msg = msg)
574 def generate_thread (self):
578 sys.stdout = self.progress.redirect
580 # TODO: capture and show stdout and stderr
581 if self.gnupg_var.get ():
582 # TODO: make get calls thread-safe
583 gnupg_setup (self.arguments,
584 self.name_var.get (),
585 self.email_var.get (),
586 self.comment_var.get ())
587 # TODO: put update into queue
588 self.update_widgets ()
590 if self.openssh_var.get ():
591 comment = "{}@{}".format (self.user_var.get (),
592 self.host_var.get ())
593 openssh_setup (self.arguments, comment)
594 # TODO: put update into queue
595 self.update_widgets ()
602 self.progress.redirect.write (self.progress.queue.get (block = False))
607 self.progress = CryptoInstallProgress (self)
609 self.bind ("<<Idle>>", self._on_idle)
611 thread = threading.Thread (target = self.generate_thread)
618 arguments = parse_arguments ()
621 # TODO: use gtk instead? would be more consistent with the pinentry style
622 # (assuming it's using gtk)
623 CryptoInstall (arguments).mainloop ()
626 gnupg_setup (arguments)
628 if arguments.openssh:
629 openssh_setup (arguments)
632 if __name__ == "__main__":