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Diffstat (limited to 'sleekxmpp/thirdparty/gnupg.py')
| -rw-r--r-- | sleekxmpp/thirdparty/gnupg.py | 1017 |
1 files changed, 0 insertions, 1017 deletions
diff --git a/sleekxmpp/thirdparty/gnupg.py b/sleekxmpp/thirdparty/gnupg.py deleted file mode 100644 index a89289fd..00000000 --- a/sleekxmpp/thirdparty/gnupg.py +++ /dev/null @@ -1,1017 +0,0 @@ -""" A wrapper for the 'gpg' command:: - -Portions of this module are derived from A.M. Kuchling's well-designed -GPG.py, using Richard Jones' updated version 1.3, which can be found -in the pycrypto CVS repository on Sourceforge: - -http://pycrypto.cvs.sourceforge.net/viewvc/pycrypto/gpg/GPG.py - -This module is *not* forward-compatible with amk's; some of the -old interface has changed. For instance, since I've added decrypt -functionality, I elected to initialize with a 'gnupghome' argument -instead of 'keyring', so that gpg can find both the public and secret -keyrings. I've also altered some of the returned objects in order for -the caller to not have to know as much about the internals of the -result classes. - -While the rest of ISconf is released under the GPL, I am releasing -this single file under the same terms that A.M. Kuchling used for -pycrypto. - -Steve Traugott, stevegt@terraluna.org -Thu Jun 23 21:27:20 PDT 2005 - -This version of the module has been modified from Steve Traugott's version -(see http://trac.t7a.org/isconf/browser/trunk/lib/python/isconf/GPG.py) by -Vinay Sajip to make use of the subprocess module (Steve's version uses os.fork() -and so does not work on Windows). Renamed to gnupg.py to avoid confusion with -the previous versions. - -Modifications Copyright (C) 2008-2012 Vinay Sajip. All rights reserved. - -A unittest harness (test_gnupg.py) has also been added. -""" -import locale - -__version__ = "0.2.9" -__author__ = "Vinay Sajip" -__date__ = "$29-Mar-2012 21:12:58$" - -try: - from io import StringIO -except ImportError: - from cStringIO import StringIO - -import codecs -import locale -import logging -import os -import socket -from subprocess import Popen -from subprocess import PIPE -import sys -import threading - -try: - import logging.NullHandler as NullHandler -except ImportError: - class NullHandler(logging.Handler): - def handle(self, record): - pass -try: - unicode - _py3k = False -except NameError: - _py3k = True - -logger = logging.getLogger(__name__) -if not logger.handlers: - logger.addHandler(NullHandler()) - -def _copy_data(instream, outstream): - # Copy one stream to another - sent = 0 - if hasattr(sys.stdin, 'encoding'): - enc = sys.stdin.encoding - else: - enc = 'ascii' - while True: - data = instream.read(1024) - if len(data) == 0: - break - sent += len(data) - logger.debug("sending chunk (%d): %r", sent, data[:256]) - try: - outstream.write(data) - except UnicodeError: - outstream.write(data.encode(enc)) - except: - # Can sometimes get 'broken pipe' errors even when the data has all - # been sent - logger.exception('Error sending data') - break - try: - outstream.close() - except IOError: - logger.warning('Exception occurred while closing: ignored', exc_info=1) - logger.debug("closed output, %d bytes sent", sent) - -def _threaded_copy_data(instream, outstream): - wr = threading.Thread(target=_copy_data, args=(instream, outstream)) - wr.setDaemon(True) - logger.debug('data copier: %r, %r, %r', wr, instream, outstream) - wr.start() - return wr - -def _write_passphrase(stream, passphrase, encoding): - passphrase = '%s\n' % passphrase - passphrase = passphrase.encode(encoding) - stream.write(passphrase) - logger.debug("Wrote passphrase: %r", passphrase) - -def _is_sequence(instance): - return isinstance(instance,list) or isinstance(instance,tuple) - -def _make_binary_stream(s, encoding): - try: - if _py3k: - if isinstance(s, str): - s = s.encode(encoding) - else: - if type(s) is not str: - s = s.encode(encoding) - from io import BytesIO - rv = BytesIO(s) - except ImportError: - rv = StringIO(s) - return rv - -class Verify(object): - "Handle status messages for --verify" - - def __init__(self, gpg): - self.gpg = gpg - self.valid = False - self.fingerprint = self.creation_date = self.timestamp = None - self.signature_id = self.key_id = None - self.username = None - - def __nonzero__(self): - return self.valid - - __bool__ = __nonzero__ - - def handle_status(self, key, value): - if key in ("TRUST_UNDEFINED", "TRUST_NEVER", "TRUST_MARGINAL", - "TRUST_FULLY", "TRUST_ULTIMATE", "RSA_OR_IDEA", "NODATA", - "IMPORT_RES", "PLAINTEXT", "PLAINTEXT_LENGTH", - "POLICY_URL", "DECRYPTION_INFO", "DECRYPTION_OKAY", "IMPORTED"): - pass - elif key == "BADSIG": - self.valid = False - self.status = 'signature bad' - self.key_id, self.username = value.split(None, 1) - elif key == "GOODSIG": - self.valid = True - self.status = 'signature good' - self.key_id, self.username = value.split(None, 1) - elif key == "VALIDSIG": - (self.fingerprint, - self.creation_date, - self.sig_timestamp, - self.expire_timestamp) = value.split()[:4] - # may be different if signature is made with a subkey - self.pubkey_fingerprint = value.split()[-1] - self.status = 'signature valid' - elif key == "SIG_ID": - (self.signature_id, - self.creation_date, self.timestamp) = value.split() - elif key == "ERRSIG": - self.valid = False - (self.key_id, - algo, hash_algo, - cls, - self.timestamp) = value.split()[:5] - self.status = 'signature error' - elif key == "DECRYPTION_FAILED": - self.valid = False - self.key_id = value - self.status = 'decryption failed' - elif key == "NO_PUBKEY": - self.valid = False - self.key_id = value - self.status = 'no public key' - elif key in ("KEYEXPIRED", "SIGEXPIRED"): - # these are useless in verify, since they are spit out for any - # pub/subkeys on the key, not just the one doing the signing. - # if we want to check for signatures with expired key, - # the relevant flag is EXPKEYSIG. - pass - elif key in ("EXPKEYSIG", "REVKEYSIG"): - # signed with expired or revoked key - self.valid = False - self.key_id = value.split()[0] - self.status = (('%s %s') % (key[:3], key[3:])).lower() - else: - raise ValueError("Unknown status message: %r" % key) - -class ImportResult(object): - "Handle status messages for --import" - - counts = '''count no_user_id imported imported_rsa unchanged - n_uids n_subk n_sigs n_revoc sec_read sec_imported - sec_dups not_imported'''.split() - def __init__(self, gpg): - self.gpg = gpg - self.imported = [] - self.results = [] - self.fingerprints = [] - for result in self.counts: - setattr(self, result, None) - - def __nonzero__(self): - if self.not_imported: return False - if not self.fingerprints: return False - return True - - __bool__ = __nonzero__ - - ok_reason = { - '0': 'Not actually changed', - '1': 'Entirely new key', - '2': 'New user IDs', - '4': 'New signatures', - '8': 'New subkeys', - '16': 'Contains private key', - } - - problem_reason = { - '0': 'No specific reason given', - '1': 'Invalid Certificate', - '2': 'Issuer Certificate missing', - '3': 'Certificate Chain too long', - '4': 'Error storing certificate', - } - - def handle_status(self, key, value): - if key == "IMPORTED": - # this duplicates info we already see in import_ok & import_problem - pass - elif key == "NODATA": - self.results.append({'fingerprint': None, - 'problem': '0', 'text': 'No valid data found'}) - elif key == "IMPORT_OK": - reason, fingerprint = value.split() - reasons = [] - for code, text in list(self.ok_reason.items()): - if int(reason) | int(code) == int(reason): - reasons.append(text) - reasontext = '\n'.join(reasons) + "\n" - self.results.append({'fingerprint': fingerprint, - 'ok': reason, 'text': reasontext}) - self.fingerprints.append(fingerprint) - elif key == "IMPORT_PROBLEM": - try: - reason, fingerprint = value.split() - except: - reason = value - fingerprint = '<unknown>' - self.results.append({'fingerprint': fingerprint, - 'problem': reason, 'text': self.problem_reason[reason]}) - elif key == "IMPORT_RES": - import_res = value.split() - for i in range(len(self.counts)): - setattr(self, self.counts[i], int(import_res[i])) - elif key == "KEYEXPIRED": - self.results.append({'fingerprint': None, - 'problem': '0', 'text': 'Key expired'}) - elif key == "SIGEXPIRED": - self.results.append({'fingerprint': None, - 'problem': '0', 'text': 'Signature expired'}) - else: - raise ValueError("Unknown status message: %r" % key) - - def summary(self): - l = [] - l.append('%d imported'%self.imported) - if self.not_imported: - l.append('%d not imported'%self.not_imported) - return ', '.join(l) - -class ListKeys(list): - ''' Handle status messages for --list-keys. - - Handle pub and uid (relating the latter to the former). - - Don't care about (info from src/DETAILS): - - crt = X.509 certificate - crs = X.509 certificate and private key available - sub = subkey (secondary key) - ssb = secret subkey (secondary key) - uat = user attribute (same as user id except for field 10). - sig = signature - rev = revocation signature - pkd = public key data (special field format, see below) - grp = reserved for gpgsm - rvk = revocation key - ''' - def __init__(self, gpg): - self.gpg = gpg - self.curkey = None - self.fingerprints = [] - self.uids = [] - - def key(self, args): - vars = (""" - type trust length algo keyid date expires dummy ownertrust uid - """).split() - self.curkey = {} - for i in range(len(vars)): - self.curkey[vars[i]] = args[i] - self.curkey['uids'] = [] - if self.curkey['uid']: - self.curkey['uids'].append(self.curkey['uid']) - del self.curkey['uid'] - self.append(self.curkey) - - pub = sec = key - - def fpr(self, args): - self.curkey['fingerprint'] = args[9] - self.fingerprints.append(args[9]) - - def uid(self, args): - self.curkey['uids'].append(args[9]) - self.uids.append(args[9]) - - def handle_status(self, key, value): - pass - -class Crypt(Verify): - "Handle status messages for --encrypt and --decrypt" - def __init__(self, gpg): - Verify.__init__(self, gpg) - self.data = '' - self.ok = False - self.status = '' - - def __nonzero__(self): - if self.ok: return True - return False - - __bool__ = __nonzero__ - - def __str__(self): - return self.data.decode(self.gpg.encoding, self.gpg.decode_errors) - - def handle_status(self, key, value): - if key in ("ENC_TO", "USERID_HINT", "GOODMDC", "END_DECRYPTION", - "BEGIN_SIGNING", "NO_SECKEY", "ERROR", "NODATA", - "CARDCTRL"): - # in the case of ERROR, this is because a more specific error - # message will have come first - pass - elif key in ("NEED_PASSPHRASE", "BAD_PASSPHRASE", "GOOD_PASSPHRASE", - "MISSING_PASSPHRASE", "DECRYPTION_FAILED", - "KEY_NOT_CREATED"): - self.status = key.replace("_", " ").lower() - elif key == "NEED_PASSPHRASE_SYM": - self.status = 'need symmetric passphrase' - elif key == "BEGIN_DECRYPTION": - self.status = 'decryption incomplete' - elif key == "BEGIN_ENCRYPTION": - self.status = 'encryption incomplete' - elif key == "DECRYPTION_OKAY": - self.status = 'decryption ok' - self.ok = True - elif key == "END_ENCRYPTION": - self.status = 'encryption ok' - self.ok = True - elif key == "INV_RECP": - self.status = 'invalid recipient' - elif key == "KEYEXPIRED": - self.status = 'key expired' - elif key == "SIG_CREATED": - self.status = 'sig created' - elif key == "SIGEXPIRED": - self.status = 'sig expired' - else: - Verify.handle_status(self, key, value) - -class GenKey(object): - "Handle status messages for --gen-key" - def __init__(self, gpg): - self.gpg = gpg - self.type = None - self.fingerprint = None - - def __nonzero__(self): - if self.fingerprint: return True - return False - - __bool__ = __nonzero__ - - def __str__(self): - return self.fingerprint or '' - - def handle_status(self, key, value): - if key in ("PROGRESS", "GOOD_PASSPHRASE", "NODATA"): - pass - elif key == "KEY_CREATED": - (self.type,self.fingerprint) = value.split() - else: - raise ValueError("Unknown status message: %r" % key) - -class DeleteResult(object): - "Handle status messages for --delete-key and --delete-secret-key" - def __init__(self, gpg): - self.gpg = gpg - self.status = 'ok' - - def __str__(self): - return self.status - - problem_reason = { - '1': 'No such key', - '2': 'Must delete secret key first', - '3': 'Ambigious specification', - } - - def handle_status(self, key, value): - if key == "DELETE_PROBLEM": - self.status = self.problem_reason.get(value, - "Unknown error: %r" % value) - else: - raise ValueError("Unknown status message: %r" % key) - -class Sign(object): - "Handle status messages for --sign" - def __init__(self, gpg): - self.gpg = gpg - self.type = None - self.fingerprint = None - - def __nonzero__(self): - return self.fingerprint is not None - - __bool__ = __nonzero__ - - def __str__(self): - return self.data.decode(self.gpg.encoding, self.gpg.decode_errors) - - def handle_status(self, key, value): - if key in ("USERID_HINT", "NEED_PASSPHRASE", "BAD_PASSPHRASE", - "GOOD_PASSPHRASE", "BEGIN_SIGNING", "CARDCTRL"): - pass - elif key == "SIG_CREATED": - (self.type, - algo, hashalgo, cls, - self.timestamp, self.fingerprint - ) = value.split() - else: - raise ValueError("Unknown status message: %r" % key) - - -class GPG(object): - - decode_errors = 'strict' - - result_map = { - 'crypt': Crypt, - 'delete': DeleteResult, - 'generate': GenKey, - 'import': ImportResult, - 'list': ListKeys, - 'sign': Sign, - 'verify': Verify, - } - - "Encapsulate access to the gpg executable" - def __init__(self, gpgbinary='gpg', gnupghome=None, verbose=False, - use_agent=False, keyring=None): - """Initialize a GPG process wrapper. Options are: - - gpgbinary -- full pathname for GPG binary. - - gnupghome -- full pathname to where we can find the public and - private keyrings. Default is whatever gpg defaults to. - keyring -- name of alternative keyring file to use. If specified, - the default keyring is not used. - """ - self.gpgbinary = gpgbinary - self.gnupghome = gnupghome - self.keyring = keyring - self.verbose = verbose - self.use_agent = use_agent - self.encoding = locale.getpreferredencoding() - if self.encoding is None: # This happens on Jython! - self.encoding = sys.stdin.encoding - if gnupghome and not os.path.isdir(self.gnupghome): - os.makedirs(self.gnupghome,0x1C0) - p = self._open_subprocess(["--version"]) - result = self.result_map['verify'](self) # any result will do for this - self._collect_output(p, result, stdin=p.stdin) - if p.returncode != 0: - raise ValueError("Error invoking gpg: %s: %s" % (p.returncode, - result.stderr)) - - def _open_subprocess(self, args, passphrase=False): - # Internal method: open a pipe to a GPG subprocess and return - # the file objects for communicating with it. - cmd = [self.gpgbinary, '--status-fd 2 --no-tty'] - if self.gnupghome: - cmd.append('--homedir "%s" ' % self.gnupghome) - if self.keyring: - cmd.append('--no-default-keyring --keyring "%s" ' % self.keyring) - if passphrase: - cmd.append('--batch --passphrase-fd 0') - if self.use_agent: - cmd.append('--use-agent') - cmd.extend(args) - cmd = ' '.join(cmd) - if self.verbose: - print(cmd) - logger.debug("%s", cmd) - return Popen(cmd, shell=True, stdin=PIPE, stdout=PIPE, stderr=PIPE) - - def _read_response(self, stream, result): - # Internal method: reads all the stderr output from GPG, taking notice - # only of lines that begin with the magic [GNUPG:] prefix. - # - # Calls methods on the response object for each valid token found, - # with the arg being the remainder of the status line. - lines = [] - while True: - line = stream.readline() - if len(line) == 0: - break - lines.append(line) - line = line.rstrip() - if self.verbose: - print(line) - logger.debug("%s", line) - if line[0:9] == '[GNUPG:] ': - # Chop off the prefix - line = line[9:] - L = line.split(None, 1) - keyword = L[0] - if len(L) > 1: - value = L[1] - else: - value = "" - result.handle_status(keyword, value) - result.stderr = ''.join(lines) - - def _read_data(self, stream, result): - # Read the contents of the file from GPG's stdout - chunks = [] - while True: - data = stream.read(1024) - if len(data) == 0: - break - logger.debug("chunk: %r" % data[:256]) - chunks.append(data) - if _py3k: - # Join using b'' or '', as appropriate - result.data = type(data)().join(chunks) - else: - result.data = ''.join(chunks) - - def _collect_output(self, process, result, writer=None, stdin=None): - """ - Drain the subprocesses output streams, writing the collected output - to the result. If a writer thread (writing to the subprocess) is given, - make sure it's joined before returning. If a stdin stream is given, - close it before returning. - """ - stderr = codecs.getreader(self.encoding)(process.stderr) - rr = threading.Thread(target=self._read_response, args=(stderr, result)) - rr.setDaemon(True) - logger.debug('stderr reader: %r', rr) - rr.start() - - stdout = process.stdout - dr = threading.Thread(target=self._read_data, args=(stdout, result)) - dr.setDaemon(True) - logger.debug('stdout reader: %r', dr) - dr.start() - - dr.join() - rr.join() - if writer is not None: - writer.join() - process.wait() - if stdin is not None: - try: - stdin.close() - except IOError: - pass - stderr.close() - stdout.close() - - def _handle_io(self, args, file, result, passphrase=None, binary=False): - "Handle a call to GPG - pass input data, collect output data" - # Handle a basic data call - pass data to GPG, handle the output - # including status information. Garbage In, Garbage Out :) - p = self._open_subprocess(args, passphrase is not None) - if not binary: - stdin = codecs.getwriter(self.encoding)(p.stdin) - else: - stdin = p.stdin - if passphrase: - _write_passphrase(stdin, passphrase, self.encoding) - writer = _threaded_copy_data(file, stdin) - self._collect_output(p, result, writer, stdin) - return result - - # - # SIGNATURE METHODS - # - def sign(self, message, **kwargs): - """sign message""" - f = _make_binary_stream(message, self.encoding) - result = self.sign_file(f, **kwargs) - f.close() - return result - - def sign_file(self, file, keyid=None, passphrase=None, clearsign=True, - detach=False, binary=False): - """sign file""" - logger.debug("sign_file: %s", file) - if binary: - args = ['-s'] - else: - args = ['-sa'] - # You can't specify detach-sign and clearsign together: gpg ignores - # the detach-sign in that case. - if detach: - args.append("--detach-sign") - elif clearsign: - args.append("--clearsign") - if keyid: - args.append('--default-key "%s"' % keyid) - args.extend(['--no-version', "--comment ''"]) - result = self.result_map['sign'](self) - #We could use _handle_io here except for the fact that if the - #passphrase is bad, gpg bails and you can't write the message. - p = self._open_subprocess(args, passphrase is not None) - try: - stdin = p.stdin - if passphrase: - _write_passphrase(stdin, passphrase, self.encoding) - writer = _threaded_copy_data(file, stdin) - except IOError: - logging.exception("error writing message") - writer = None - self._collect_output(p, result, writer, stdin) - return result - - def verify(self, data): - """Verify the signature on the contents of the string 'data' - - >>> gpg = GPG(gnupghome="keys") - >>> input = gpg.gen_key_input(Passphrase='foo') - >>> key = gpg.gen_key(input) - >>> assert key - >>> sig = gpg.sign('hello',keyid=key.fingerprint,passphrase='bar') - >>> assert not sig - >>> sig = gpg.sign('hello',keyid=key.fingerprint,passphrase='foo') - >>> assert sig - >>> verify = gpg.verify(sig.data) - >>> assert verify - - """ - f = _make_binary_stream(data, self.encoding) - result = self.verify_file(f) - f.close() - return result - - def verify_file(self, file, data_filename=None): - "Verify the signature on the contents of the file-like object 'file'" - logger.debug('verify_file: %r, %r', file, data_filename) - result = self.result_map['verify'](self) - args = ['--verify'] - if data_filename is None: - self._handle_io(args, file, result, binary=True) - else: - logger.debug('Handling detached verification') - import tempfile - fd, fn = tempfile.mkstemp(prefix='pygpg') - s = file.read() - file.close() - logger.debug('Wrote to temp file: %r', s) - os.write(fd, s) - os.close(fd) - args.append(fn) - args.append('"%s"' % data_filename) - try: - p = self._open_subprocess(args) - self._collect_output(p, result, stdin=p.stdin) - finally: - os.unlink(fn) - return result - - # - # KEY MANAGEMENT - # - - def import_keys(self, key_data): - """ import the key_data into our keyring - - >>> import shutil - >>> shutil.rmtree("keys") - >>> gpg = GPG(gnupghome="keys") - >>> input = gpg.gen_key_input() - >>> result = gpg.gen_key(input) - >>> print1 = result.fingerprint - >>> result = gpg.gen_key(input) - >>> print2 = result.fingerprint - >>> pubkey1 = gpg.export_keys(print1) - >>> seckey1 = gpg.export_keys(print1,secret=True) - >>> seckeys = gpg.list_keys(secret=True) - >>> pubkeys = gpg.list_keys() - >>> assert print1 in seckeys.fingerprints - >>> assert print1 in pubkeys.fingerprints - >>> str(gpg.delete_keys(print1)) - 'Must delete secret key first' - >>> str(gpg.delete_keys(print1,secret=True)) - 'ok' - >>> str(gpg.delete_keys(print1)) - 'ok' - >>> str(gpg.delete_keys("nosuchkey")) - 'No such key' - >>> seckeys = gpg.list_keys(secret=True) - >>> pubkeys = gpg.list_keys() - >>> assert not print1 in seckeys.fingerprints - >>> assert not print1 in pubkeys.fingerprints - >>> result = gpg.import_keys('foo') - >>> assert not result - >>> result = gpg.import_keys(pubkey1) - >>> pubkeys = gpg.list_keys() - >>> seckeys = gpg.list_keys(secret=True) - >>> assert not print1 in seckeys.fingerprints - >>> assert print1 in pubkeys.fingerprints - >>> result = gpg.import_keys(seckey1) - >>> assert result - >>> seckeys = gpg.list_keys(secret=True) - >>> pubkeys = gpg.list_keys() - >>> assert print1 in seckeys.fingerprints - >>> assert print1 in pubkeys.fingerprints - >>> assert print2 in pubkeys.fingerprints - - """ - result = self.result_map['import'](self) - logger.debug('import_keys: %r', key_data[:256]) - data = _make_binary_stream(key_data, self.encoding) - self._handle_io(['--import'], data, result, binary=True) - logger.debug('import_keys result: %r', result.__dict__) - data.close() - return result - - def recv_keys(self, keyserver, *keyids): - """Import a key from a keyserver - - >>> import shutil - >>> shutil.rmtree("keys") - >>> gpg = GPG(gnupghome="keys") - >>> result = gpg.recv_keys('pgp.mit.edu', '3FF0DB166A7476EA') - >>> assert result - - """ - result = self.result_map['import'](self) - logger.debug('recv_keys: %r', keyids) - data = _make_binary_stream("", self.encoding) - #data = "" - args = ['--keyserver', keyserver, '--recv-keys'] - args.extend(keyids) - self._handle_io(args, data, result, binary=True) - logger.debug('recv_keys result: %r', result.__dict__) - data.close() - return result - - def delete_keys(self, fingerprints, secret=False): - which='key' - if secret: - which='secret-key' - if _is_sequence(fingerprints): - fingerprints = ' '.join(fingerprints) - args = ['--batch --delete-%s "%s"' % (which, fingerprints)] - result = self.result_map['delete'](self) - p = self._open_subprocess(args) - self._collect_output(p, result, stdin=p.stdin) - return result - - def export_keys(self, keyids, secret=False): - "export the indicated keys. 'keyid' is anything gpg accepts" - which='' - if secret: - which='-secret-key' - if _is_sequence(keyids): - keyids = ' '.join(['"%s"' % k for k in keyids]) - args = ["--armor --export%s %s" % (which, keyids)] - p = self._open_subprocess(args) - # gpg --export produces no status-fd output; stdout will be - # empty in case of failure - #stdout, stderr = p.communicate() - result = self.result_map['delete'](self) # any result will do - self._collect_output(p, result, stdin=p.stdin) - logger.debug('export_keys result: %r', result.data) - return result.data.decode(self.encoding, self.decode_errors) - - def list_keys(self, secret=False): - """ list the keys currently in the keyring - - >>> import shutil - >>> shutil.rmtree("keys") - >>> gpg = GPG(gnupghome="keys") - >>> input = gpg.gen_key_input() - >>> result = gpg.gen_key(input) - >>> print1 = result.fingerprint - >>> result = gpg.gen_key(input) - >>> print2 = result.fingerprint - >>> pubkeys = gpg.list_keys() - >>> assert print1 in pubkeys.fingerprints - >>> assert print2 in pubkeys.fingerprints - - """ - - which='keys' - if secret: - which='secret-keys' - args = "--list-%s --fixed-list-mode --fingerprint --with-colons" % (which,) - args = [args] - p = self._open_subprocess(args) - - # there might be some status thingumy here I should handle... (amk) - # ...nope, unless you care about expired sigs or keys (stevegt) - - # Get the response information - result = self.result_map['list'](self) - self._collect_output(p, result, stdin=p.stdin) - lines = result.data.decode(self.encoding, - self.decode_errors).splitlines() - valid_keywords = 'pub uid sec fpr'.split() - for line in lines: - if self.verbose: - print(line) - logger.debug("line: %r", line.rstrip()) - if not line: - break - L = line.strip().split(':') - if not L: - continue - keyword = L[0] - if keyword in valid_keywords: - getattr(result, keyword)(L) - return result - - def gen_key(self, input): - """Generate a key; you might use gen_key_input() to create the - control input. - - >>> gpg = GPG(gnupghome="keys") - >>> input = gpg.gen_key_input() - >>> result = gpg.gen_key(input) - >>> assert result - >>> result = gpg.gen_key('foo') - >>> assert not result - - """ - args = ["--gen-key --batch"] - result = self.result_map['generate'](self) - f = _make_binary_stream(input, self.encoding) - self._handle_io(args, f, result, binary=True) - f.close() - return result - - def gen_key_input(self, **kwargs): - """ - Generate --gen-key input per gpg doc/DETAILS - """ - parms = {} - for key, val in list(kwargs.items()): - key = key.replace('_','-').title() - parms[key] = val - parms.setdefault('Key-Type','RSA') - parms.setdefault('Key-Length',1024) - parms.setdefault('Name-Real', "Autogenerated Key") - parms.setdefault('Name-Comment', "Generated by gnupg.py") - try: - logname = os.environ['LOGNAME'] - except KeyError: - logname = os.environ['USERNAME'] - hostname = socket.gethostname() - parms.setdefault('Name-Email', "%s@%s" % (logname.replace(' ', '_'), - hostname)) - out = "Key-Type: %s\n" % parms.pop('Key-Type') - for key, val in list(parms.items()): - out += "%s: %s\n" % (key, val) - out += "%commit\n" - return out - - # Key-Type: RSA - # Key-Length: 1024 - # Name-Real: ISdlink Server on %s - # Name-Comment: Created by %s - # Name-Email: isdlink@%s - # Expire-Date: 0 - # %commit - # - # - # Key-Type: DSA - # Key-Length: 1024 - # Subkey-Type: ELG-E - # Subkey-Length: 1024 - # Name-Real: Joe Tester - # Name-Comment: with stupid passphrase - # Name-Email: joe@foo.bar - # Expire-Date: 0 - # Passphrase: abc - # %pubring foo.pub - # %secring foo.sec - # %commit - - # - # ENCRYPTION - # - def encrypt_file(self, file, recipients, sign=None, - always_trust=False, passphrase=None, - armor=True, output=None, symmetric=False): - "Encrypt the message read from the file-like object 'file'" - args = ['--no-version', "--comment ''"] - if symmetric: - args.append('--symmetric') - else: - args.append('--encrypt') - if not _is_sequence(recipients): - recipients = (recipients,) - for recipient in recipients: - args.append('--recipient "%s"' % recipient) - if armor: # create ascii-armored output - set to False for binary output - args.append('--armor') - if output: # write the output to a file with the specified name - if os.path.exists(output): - os.remove(output) # to avoid overwrite confirmation message - args.append('--output "%s"' % output) - if sign: - args.append('--sign --default-key "%s"' % sign) - if always_trust: - args.append("--always-trust") - result = self.result_map['crypt'](self) - self._handle_io(args, file, result, passphrase=passphrase, binary=True) - logger.debug('encrypt result: %r', result.data) - return result - - def encrypt(self, data, recipients, **kwargs): - """Encrypt the message contained in the string 'data' - - >>> import shutil - >>> if os.path.exists("keys"): - ... shutil.rmtree("keys") - >>> gpg = GPG(gnupghome="keys") - >>> input = gpg.gen_key_input(passphrase='foo') - >>> result = gpg.gen_key(input) - >>> print1 = result.fingerprint - >>> input = gpg.gen_key_input() - >>> result = gpg.gen_key(input) - >>> print2 = result.fingerprint - >>> result = gpg.encrypt("hello",print2) - >>> message = str(result) - >>> assert message != 'hello' - >>> result = gpg.decrypt(message) - >>> assert result - >>> str(result) - 'hello' - >>> result = gpg.encrypt("hello again",print1) - >>> message = str(result) - >>> result = gpg.decrypt(message) - >>> result.status == 'need passphrase' - True - >>> result = gpg.decrypt(message,passphrase='bar') - >>> result.status in ('decryption failed', 'bad passphrase') - True - >>> assert not result - >>> result = gpg.decrypt(message,passphrase='foo') - >>> result.status == 'decryption ok' - True - >>> str(result) - 'hello again' - >>> result = gpg.encrypt("signed hello",print2,sign=print1) - >>> result.status == 'need passphrase' - True - >>> result = gpg.encrypt("signed hello",print2,sign=print1,passphrase='foo') - >>> result.status == 'encryption ok' - True - >>> message = str(result) - >>> result = gpg.decrypt(message) - >>> result.status == 'decryption ok' - True - >>> assert result.fingerprint == print1 - - """ - data = _make_binary_stream(data, self.encoding) - result = self.encrypt_file(data, recipients, **kwargs) - data.close() - return result - - def decrypt(self, message, **kwargs): - data = _make_binary_stream(message, self.encoding) - result = self.decrypt_file(data, **kwargs) - data.close() - return result - - def decrypt_file(self, file, always_trust=False, passphrase=None, - output=None): - args = ["--decrypt"] - if output: # write the output to a file with the specified name - if os.path.exists(output): - os.remove(output) # to avoid overwrite confirmation message - args.append('--output "%s"' % output) - if always_trust: - args.append("--always-trust") - result = self.result_map['crypt'](self) - self._handle_io(args, file, result, passphrase, binary=True) - logger.debug('decrypt result: %r', result.data) - return result - |