Completion

git-svn-id: svn+ssh://localhost/home/henryk/svn/cyberflex-shell/trunk@14 f711b948-2313-0410-aaa9-d29f33439f0b
This commit is contained in:
henryk 2005-09-29 14:41:20 +00:00
parent 229ab9998b
commit 2a86cb5859
1 changed files with 128 additions and 66 deletions

View File

@ -1,77 +1,139 @@
#!/usr/bin/env python
# -*- coding: iso-8859-1 -*-
import pycsc, utils, cards, os, readline, re, binascii, sys
import pycsc, utils, cards, os, re, binascii, sys, exceptions
histfile = os.path.join(os.environ["HOME"], ".cyberflex-shell.history")
try:
readline.read_history_file(histfile)
except IOError:
pass
import atexit
atexit.register(readline.write_history_file, histfile)
del os, histfile
import readline
except ImportError:
print "No readline available"
readline.parse_and_bind("tab: complete")
readerName = pycsc.listReader()[0]
newState = pycsc.getStatusChange(ReaderStates=[{'Reader': readerName, 'CurrentState':pycsc.SCARD_STATE_UNAWARE}])
print "Cyberflex shell"
print "Using reader: %s" % readerName
print "Card present: %s" % ((newState[0]['EventState'] & pycsc.SCARD_STATE_PRESENT) and "yes" or "no")
if not newState[0]['EventState'] & pycsc.SCARD_STATE_PRESENT:
print "Please insert card ..."
while not newState[0]['EventState'] & pycsc.SCARD_STATE_PRESENT \
or newState[0]['EventState'] & pycsc.SCARD_STATE_MUTE:
newState = pycsc.getStatusChange(ReaderStates=[{'Reader': readerName, 'CurrentState':newState[0]['EventState']}])
if newState[0]['EventState'] & pycsc.SCARD_STATE_MUTE:
print "Card is mute, please retry ..."
print "Card present: %s" % ((newState[0]['EventState'] & pycsc.SCARD_STATE_PRESENT) and "yes" or "no")
print "ATR: %s" % utils.hexdump(newState[0]['Atr'], short = True)
card_class = cards.find_class(newState[0]['Atr'])
card = card_class()
line = ""
apduregex = re.compile(r'^\s*([0-9a-f]{2}\s*){4,}$', re.I)
while line != "exit":
if sys.modules.has_key("readline"):
histfile = os.path.join(os.environ["HOME"], ".cyberflex-shell.history")
try:
line = raw_input("%s > " % card.get_prompt())
except EOFError:
print
break
readline.read_history_file(histfile)
except IOError:
pass
import atexit
atexit.register(readline.write_history_file, histfile)
del os, histfile
line = line.strip()
if line == "":
continue
readline.parse_and_bind("tab: complete")
parts = line.split()
cmd = parts[0]
if card.COMMANDS.has_key(cmd.lower()):
cmdspec = card.COMMANDS[cmd.lower()]
try:
cmdspec[0](card, *parts[1:])
except Exception:
exctype, value = sys.exc_info()[:2]
print "%s: %s" % (exctype, value)
class Cyberflex_Shell_Completer:
def __init__(self, *commands):
self.commands = commands
self.card = None
def set_card(self, card):
self.card = card
def complete(self, text, state):
found = -1
def check(text, state, cmd, found):
if text == cmd[:len(text)]:
found = found+1
if found == state:
return (found, cmd)
else:
return (found, None)
elif apduregex.match(line):
## Might be an APDU
apdu = binascii.a2b_hex("".join(line.split()))
try:
response = card.send_apdu(apdu)
print utils.hexdump(response)
except Exception:
exctype, value = sys.exc_info()[:2]
print "%s: %s" % (exctype, value)
if self.card is not None:
for (cmd, cmdspec) in self.card.COMMANDS.items():
(found, retval) = check(text, state, cmd, found)
if retval is not None:
return retval
for cmdset in self.commands:
for (cmd, cmdspec) in cmdset.items():
(found, retval) = check(text, state, cmd, found)
if retval is not None:
return retval
else:
print "Unknown command"
return False
def cmd_exit(card, *args):
sys.exit()
COMMANDS = {
"exit": (cmd_exit, "exit",
"""Exit the shell.""")
}
if __name__ == "__main__":
readerName = pycsc.listReader()[0]
newState = pycsc.getStatusChange(ReaderStates=[{'Reader': readerName, 'CurrentState':pycsc.SCARD_STATE_UNAWARE}])
print "Cyberflex shell"
print "Using reader: %s" % readerName
print "Card present: %s" % ((newState[0]['EventState'] & pycsc.SCARD_STATE_PRESENT) and "yes" or "no")
if not newState[0]['EventState'] & pycsc.SCARD_STATE_PRESENT:
print "Please insert card ..."
while not newState[0]['EventState'] & pycsc.SCARD_STATE_PRESENT \
or newState[0]['EventState'] & pycsc.SCARD_STATE_MUTE:
newState = pycsc.getStatusChange(ReaderStates=[{'Reader': readerName, 'CurrentState':newState[0]['EventState']}])
if newState[0]['EventState'] & pycsc.SCARD_STATE_MUTE:
print "Card is mute, please retry ..."
print "Card present: %s" % ((newState[0]['EventState'] & pycsc.SCARD_STATE_PRESENT) and "yes" or "no")
print "ATR: %s" % utils.hexdump(newState[0]['Atr'], short = True)
card_class = cards.find_class(newState[0]['Atr'])
card = card_class()
if sys.modules.has_key("readline"):
completer = Cyberflex_Shell_Completer(COMMANDS)
completer.set_card(card)
readline.set_completer(completer.complete)
line = ""
apduregex = re.compile(r'^\s*([0-9a-f]{2}\s*){4,}$', re.I)
while True:
try:
line = raw_input("%s > " % card.get_prompt())
except EOFError:
print
break
line = line.strip()
if line == "":
continue
parts = line.split()
cmd = parts[0]
if card.COMMANDS.has_key(cmd.lower()):
cmdspec = card.COMMANDS[cmd.lower()]
try:
cmdspec[0](card, *parts[1:])
except Exception:
exctype, value = sys.exc_info()[:2]
if exctype == exceptions.SystemExit:
raise exctype, value
print "%s: %s" % (exctype, value)
elif COMMANDS.has_key(cmd.lower()):
cmdspec = COMMANDS[cmd.lower()]
try:
cmdspec[0](card, *parts[1:])
except Exception:
exctype, value = sys.exc_info()[:2]
if exctype == exceptions.SystemExit:
raise exctype, value
print "%s: %s" % (exctype, value)
elif apduregex.match(line):
## Might be an APDU
apdu = binascii.a2b_hex("".join(line.split()))
try:
response = card.send_apdu(apdu)
print utils.hexdump(response)
except Exception:
exctype, value = sys.exc_info()[:2]
print "%s: %s" % (exctype, value)
else:
print "Unknown command"