Completelly switch to Key Manager for crypto.

This removes all GPG wrapper that was left and includes Key Manager to take
care of all crypto stuff.

1 files changed, 0 insertions, 393 deletions

diff --git a/src/leap/soledad/util.py b/src/leap/soledad/util.py
deleted file mode 100644
index 90797501..00000000
--- a/src/leap/soledad/util.py
+++ /dev/null
@@ -1,393 +0,0 @@
-# -*- coding: utf-8 -*-
-# util.py
-# Copyright (C) 2013 LEAP
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-
-"""
-Utilities for Soledad.
-"""
-
-import os
-import gnupg
-import re
-from gnupg import (
-    logger,
-    _is_sequence,
-    _make_binary_stream,
-)
-
-
-class ListPackets():
-    """
-    Handle status messages for --list-packets.
-    """
-
-    def __init__(self, gpg):
-        """
-        Initialize the packet listing handling class.
-
-        @param gpg: GPG object instance.
-        @type gpg: gnupg.GPG
-        """
-        self.gpg = gpg
-        self.nodata = None
-        self.key = None
-        self.need_passphrase = None
-        self.need_passphrase_sym = None
-        self.userid_hint = None
-
-    def handle_status(self, key, value):
-        """
-        Handle one line of the --list-packets status message.
-
-        @param key: The status message key.
-        @type key: str
-        @param value: The status message value.
-        @type value: str
-        """
-        # TODO: write tests for handle_status
-        if key == 'NODATA':
-            self.nodata = True
-        if key == 'ENC_TO':
-            # This will only capture keys in our keyring. In the future we
-            # may want to include multiple unknown keys in this list.
-            self.key, _, _ = value.split()
-        if key == 'NEED_PASSPHRASE':
-            self.need_passphrase = True
-        if key == 'NEED_PASSPHRASE_SYM':
-            self.need_passphrase_sym = True
-        if key == 'USERID_HINT':
-            self.userid_hint = value.strip().split()
-
-
-class GPGWrapper(gnupg.GPG):
-    """
-    This is a temporary class for handling GPG requests, and should be
-    replaced by a more general class used throughout the project.
-    """
-
-    GNUPG_HOME = os.environ['HOME'] + "/.config/leap/gnupg"
-    GNUPG_BINARY = "/usr/bin/gpg"  # this has to be changed based on OS
-
-    def __init__(self, gpgbinary=GNUPG_BINARY, gnupghome=GNUPG_HOME,
-                 verbose=False, use_agent=False, keyring=None, options=None):
-        """
-        Initialize a GnuPG process wrapper.
-
-        @param gpgbinary: Name for GnuPG binary executable.
-        @type gpgbinary: C{str}
-        @param gpghome: Full pathname to directory containing the public and
-            private keyrings.
-        @type gpghome: C{str}
-        @param keyring: Name of alternative keyring file to use. If specified,
-            the default keyring is not used.
-        @param verbose: Should some verbose info be output?
-        @type verbose: bool
-        @param use_agent: Should pass `--use-agent` to GPG binary?
-        @type use_agent: bool
-        @param keyring: Path for the keyring to use.
-        @type keyring: str
-        @options: A list of additional options to pass to the GPG binary.
-        @type options: list
-
-        @raise: RuntimeError with explanation message if there is a problem
-            invoking gpg.
-        """
-        gnupg.GPG.__init__(self, gnupghome=gnupghome, gpgbinary=gpgbinary,
-                           verbose=verbose, use_agent=use_agent,
-                           keyring=keyring, options=options)
-        self.result_map['list-packets'] = ListPackets
-
-    def find_key_by_email(self, email, secret=False):
-        """
-        Find user's key based on their email.
-
-        @param email: Email address of key being searched for.
-        @type email: str
-        @param secret: Should we search for a secret key?
-        @type secret: bool
-
-        @return: The fingerprint of the found key.
-        @rtype: str
-        """
-        for key in self.list_keys(secret=secret):
-            for uid in key['uids']:
-                if re.search(email, uid):
-                    return key
-        raise LookupError("GnuPG public key for email %s not found!" % email)
-
-    def find_key_by_subkey(self, subkey, secret=False):
-        """
-        Find user's key based on a subkey fingerprint.
-
-        @param email: Subkey fingerprint of the key being searched for.
-        @type email: str
-        @param secret: Should we search for a secret key?
-        @type secret: bool
-
-        @return: The fingerprint of the found key.
-        @rtype: str
-        """
-        for key in self.list_keys(secret=secret):
-            for sub in key['subkeys']:
-                if sub[0] == subkey:
-                    return key
-        raise LookupError(
-            "GnuPG public key for subkey %s not found!" % subkey)
-
-    def find_key_by_keyid(self, keyid, secret=False):
-        """
-        Find user's key based on the key ID.
-
-        @param email: The key ID of the key being searched for.
-        @type email: str
-        @param secret: Should we search for a secret key?
-        @type secret: bool
-
-        @return: The fingerprint of the found key.
-        @rtype: str
-        """
-        for key in self.list_keys(secret=secret):
-            if keyid == key['keyid']:
-                return key
-        raise LookupError(
-            "GnuPG public key for keyid %s not found!" % keyid)
-
-    def find_key_by_fingerprint(self, fingerprint, secret=False):
-        """
-        Find user's key based on the key fingerprint.
-
-        @param email: The fingerprint of the key being searched for.
-        @type email: str
-        @param secret: Should we search for a secret key?
-        @type secret: bool
-
-        @return: The fingerprint of the found key.
-        @rtype: str
-        """
-        for key in self.list_keys(secret=secret):
-            if fingerprint == key['fingerprint']:
-                return key
-        raise LookupError(
-            "GnuPG public key for fingerprint %s not found!" % fingerprint)
-
-    def encrypt(self, data, recipient, sign=None, always_trust=True,
-                passphrase=None, symmetric=False):
-        """
-        Encrypt data using GPG.
-
-        @param data: The data to be encrypted.
-        @type data: str
-        @param recipient: The address of the public key to be used.
-        @type recipient: str
-        @param sign: Should the encrypted content be signed?
-        @type sign: bool
-        @param always_trust: Skip key validation and assume that used keys
-            are always fully trusted?
-        @type always_trust: bool
-        @param passphrase: The passphrase to be used if symmetric encryption
-            is desired.
-        @type passphrase: str
-        @param symmetric: Should we encrypt to a password?
-        @type symmetric: bool
-
-        @return: An object with encrypted result in the `data` field.
-        @rtype: gnupg.Crypt
-        """
-        # TODO: devise a way so we don't need to "always trust".
-        return gnupg.GPG.encrypt(self, data, recipient, sign=sign,
-                                 always_trust=always_trust,
-                                 passphrase=passphrase,
-                                 symmetric=symmetric,
-                                 cipher_algo='AES256')
-
-    def decrypt(self, data, always_trust=True, passphrase=None):
-        """
-        Decrypt data using GPG.
-
-        @param data: The data to be decrypted.
-        @type data: str
-        @param always_trust: Skip key validation and assume that used keys
-            are always fully trusted?
-        @type always_trust: bool
-        @param passphrase: The passphrase to be used if symmetric encryption
-            is desired.
-        @type passphrase: str
-
-        @return: An object with decrypted result in the `data` field.
-        @rtype: gnupg.Crypt
-        """
-        # TODO: devise a way so we don't need to "always trust".
-        return gnupg.GPG.decrypt(self, data, always_trust=always_trust,
-                                 passphrase=passphrase)
-
-    def send_keys(self, keyserver, *keyids):
-        """
-        Send keys to a keyserver
-
-        @param keyserver: The keyserver to send the keys to.
-        @type keyserver: str
-        @param keyids: The key ids to send.
-        @type keyids: list
-
-        @return: A list of keys sent to server.
-        @rtype: gnupg.ListKeys
-        """
-        # TODO: write tests for this.
-        # TODO: write a SendKeys class to handle status for this.
-        result = self.result_map['list'](self)
-        gnupg.logger.debug('send_keys: %r', keyids)
-        data = gnupg._make_binary_stream("", self.encoding)
-        args = ['--keyserver', keyserver, '--send-keys']
-        args.extend(keyids)
-        self._handle_io(args, data, result, binary=True)
-        gnupg.logger.debug('send_keys result: %r', result.__dict__)
-        data.close()
-        return result
-
-    def encrypt_file(self, file, recipients, sign=None,
-                     always_trust=False, passphrase=None,
-                     armor=True, output=None, symmetric=False,
-                     cipher_algo=None):
-        """
-        Encrypt the message read from the file-like object 'file'.
-
-        @param file: The file to be encrypted.
-        @type data: file
-        @param recipient: The address of the public key to be used.
-        @type recipient: str
-        @param sign: Should the encrypted content be signed?
-        @type sign: bool
-        @param always_trust: Skip key validation and assume that used keys
-            are always fully trusted?
-        @type always_trust: bool
-        @param passphrase: The passphrase to be used if symmetric encryption
-            is desired.
-        @type passphrase: str
-        @param armor: Create ASCII armored output?
-        @type armor: bool
-        @param output: Path of file to write results in.
-        @type output: str
-        @param symmetric: Should we encrypt to a password?
-        @type symmetric: bool
-        @param cipher_algo: Algorithm to use.
-        @type cipher_algo: str
-
-        @return: An object with encrypted result in the `data` field.
-        @rtype: gnupg.Crypt
-        """
-        args = ['--encrypt']
-        if symmetric:
-            args = ['--symmetric']
-            if cipher_algo:
-                args.append('--cipher-algo %s' % cipher_algo)
-        else:
-            args = ['--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
-            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 list_packets(self, data):
-        """
-        List the sequence of packets.
-
-        @param data: The data to extract packets from.
-        @type data: str
-
-        @return: An object with packet info.
-        @rtype ListPackets
-        """
-        args = ["--list-packets"]
-        result = self.result_map['list-packets'](self)
-        self._handle_io(
-            args,
-            _make_binary_stream(data, self.encoding),
-            result,
-        )
-        return result
-
-    def encrypted_to(self, data):
-        """
-        Return the key to which data is encrypted to.
-
-        @param data: The data to be examined.
-        @type data: str
-
-        @return: The fingerprint of the key to which data is encrypted to.
-        @rtype: str
-        """
-        # TODO: make this support multiple keys.
-        result = self.list_packets(data)
-        if not result.key:
-            raise LookupError(
-                "Content is not encrypted to a GnuPG key!")
-        try:
-            return self.find_key_by_keyid(result.key)
-        except:
-            return self.find_key_by_subkey(result.key)
-
-    def is_encrypted_sym(self, data):
-        """
-        Say whether some chunk of data is encrypted to a symmetric key.
-
-        @param data: The data to be examined.
-        @type data: str
-
-        @return: Whether data is encrypted to a symmetric key.
-        @rtype: bool
-        """
-        result = self.list_packets(data)
-        return bool(result.need_passphrase_sym)
-
-    def is_encrypted_asym(self, data):
-        """
-        Say whether some chunk of data is encrypted to a private key.
-
-        @param data: The data to be examined.
-        @type data: str
-
-        @return: Whether data is encrypted to a private key.
-        @rtype: bool
-        """
-        result = self.list_packets(data)
-        return bool(result.key)
-
-    def is_encrypted(self, data):
-        """
-        Say whether some chunk of data is encrypted to a key.
-
-        @param data: The data to be examined.
-        @type data: str
-
-        @return: Whether data is encrypted to a key.
-        @rtype: bool
-        """
-        self.is_encrypted_asym() or self.is_encrypted_sym()