freeipa/ipalib/cli.py
Christian Heimes c925b44f43 Load certificate files as binary data
In Python 3, cryptography requires certificate data to be binary. Even
PEM encoded files are treated as binary content.

certmap-match and cert-find were loading certificates as text files. A
new BinaryFile type loads files as binary content.

Fixes: https://pagure.io/freeipa/issue/7520
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
2018-04-30 20:42:00 +02:00

1428 lines
48 KiB
Python

# Authors:
# Jason Gerard DeRose <jderose@redhat.com>
#
# Copyright (C) 2008 Red Hat
# see file 'COPYING' for use and warranty information
#
# 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/>.
"""
Functionality for Command Line Interface.
"""
from __future__ import print_function
import importlib
import logging
import textwrap
import sys
import getpass
import code
import optparse # pylint: disable=deprecated-module
import fcntl
import termios
import struct
import base64
import traceback
import six
from six.moves import input
from ipalib.util import (
check_client_configuration, get_terminal_height, open_in_pager
)
if six.PY3:
unicode = str
if six.PY2:
reload(sys) # pylint: disable=reload-builtin, undefined-variable
sys.setdefaultencoding('utf-8') # pylint: disable=no-member
from ipalib import frontend
from ipalib import backend
from ipalib import plugable
from ipalib.errors import (PublicError, CommandError, HelpError, InternalError,
NoSuchNamespaceError, ValidationError, NotFound,
NotConfiguredError, PromptFailed)
from ipalib.constants import CLI_TAB, LDAP_GENERALIZED_TIME_FORMAT
from ipalib.parameters import File, BinaryFile, Str, Enum, Any, Flag
from ipalib.text import _
from ipalib import api # pylint: disable=unused-import
from ipapython.dnsutil import DNSName
from ipapython.admintool import ScriptError
import datetime
logger = logging.getLogger(__name__)
def to_cli(name):
"""
Takes a Python identifier and transforms it into form suitable for the
Command Line Interface.
"""
assert isinstance(name, str)
return name.replace('_', '-')
def from_cli(cli_name):
"""
Takes a string from the Command Line Interface and transforms it into a
Python identifier.
"""
return str(cli_name).replace('-', '_')
class textui(backend.Backend):
"""
Backend plugin to nicely format output to stdout.
"""
def get_tty_width(self):
"""
Return the width (in characters) of output tty.
If stdout is not a tty, this method will return ``None``.
"""
# /usr/include/asm/termios.h says that struct winsize has four
# unsigned shorts, hence the HHHH
if sys.stdout.isatty():
try:
winsize = fcntl.ioctl(sys.stdout, termios.TIOCGWINSZ,
struct.pack('HHHH', 0, 0, 0, 0))
return struct.unpack('HHHH', winsize)[1]
except IOError:
pass
return None
def max_col_width(self, rows, col=None):
"""
Return the max width (in characters) of a specified column.
For example:
>>> ui = textui(api)
>>> rows = [
... ('a', 'package'),
... ('an', 'egg'),
... ]
>>> ui.max_col_width(rows, col=0) # len('an')
2
>>> ui.max_col_width(rows, col=1) # len('package')
7
>>> ui.max_col_width(['a', 'cherry', 'py']) # len('cherry')
6
"""
if type(rows) not in (list, tuple):
raise TypeError(
'rows: need %r or %r; got %r' % (list, tuple, rows)
)
if len(rows) == 0:
return 0
if col is None:
return max(len(row) for row in rows)
return max(len(row[col]) for row in rows)
def __get_encoding(self, stream):
assert stream in (sys.stdin, sys.stdout)
if getattr(stream, 'encoding', None) is None:
return 'UTF-8'
return stream.encoding
if six.PY2:
def decode(self, value):
"""
Decode text from stdin.
"""
if type(value) is bytes:
encoding = self.__get_encoding(sys.stdin)
return value.decode(encoding)
elif type(value) in (list, tuple):
return tuple(self.decode(v) for v in value)
return value
def encode(self, unicode_text):
"""
Encode text for output to stdout.
"""
assert type(unicode_text) is unicode
encoding = self.__get_encoding(sys.stdout)
return unicode_text.encode(encoding)
else:
def decode(self, value):
return value
def encode(self, value):
return value
def choose_number(self, n, singular, plural=None):
if n == 1 or plural is None:
return singular % n
return plural % n
def encode_binary(self, value):
"""
Convert a binary value to base64. We know a value is binary
if it is a python bytes type, otherwise it is a plain string.
This function also converts datetime and DNSName values to string.
"""
if type(value) is bytes:
return base64.b64encode(value).decode('ascii')
elif type(value) is datetime.datetime:
return value.strftime(LDAP_GENERALIZED_TIME_FORMAT)
elif isinstance(value, DNSName):
return unicode(value)
else:
return value
def print_plain(self, string):
"""
Print exactly like ``print`` statement would.
"""
print(unicode(string))
def print_line(self, text, width=None):
"""
Force printing on a single line, using ellipsis if needed.
For example:
>>> ui = textui(api)
>>> ui.print_line('This line can fit!', width=18)
This line can fit!
>>> ui.print_line('This line wont quite fit!', width=18)
This line wont ...
The above example aside, you normally should not specify the
``width``. When you don't, it is automatically determined by calling
`textui.get_tty_width()`.
"""
if width is None:
width = self.get_tty_width()
if width is not None and width < len(text):
text = text[:width - 3] + '...'
print(unicode(text))
def print_paragraph(self, text, width=None):
"""
Print a paragraph, automatically word-wrapping to tty width.
For example:
>>> text = '''
... Python is a dynamic object-oriented programming language that can
... be used for many kinds of software development.
... '''
>>> ui = textui(api)
>>> ui.print_paragraph(text, width=45)
Python is a dynamic object-oriented
programming language that can be used for
many kinds of software development.
The above example aside, you normally should not specify the
``width``. When you don't, it is automatically determined by calling
`textui.get_tty_width()`.
The word-wrapping is done using the Python ``textwrap`` module. See:
http://docs.python.org/library/textwrap.html
"""
if width is None:
width = self.get_tty_width()
for line in textwrap.wrap(text.strip(), width):
print(line)
def print_indented(self, text, indent=1):
"""
Print at specified indentation level.
For example:
>>> ui = textui(api)
>>> ui.print_indented('One indentation level.')
One indentation level.
>>> ui.print_indented('Two indentation levels.', indent=2)
Two indentation levels.
>>> ui.print_indented('No indentation.', indent=0)
No indentation.
"""
print((CLI_TAB * indent + text))
def print_keyval(self, rows, indent=1):
"""
Print (key = value) pairs, one pair per line.
For example:
>>> items = [
... ('in_server', True),
... ('mode', u'production'),
... ]
>>> ui = textui(api)
>>> ui.print_keyval(items)
in_server = True
mode = u'production'
>>> ui.print_keyval(items, indent=0)
in_server = True
mode = u'production'
Also see `textui.print_indented`.
"""
for (key, value) in rows:
self.print_indented('%s = %r' % (key, self.encode_binary(value)), indent)
def print_attribute(self, attr, value, format='%s: %s', indent=1, one_value_per_line=True):
"""
Print an ldap attribute.
For example:
>>> attr = 'dn'
>>> ui = textui(api)
>>> ui.print_attribute(attr, u'dc=example,dc=com')
dn: dc=example,dc=com
>>> attr = 'objectClass'
>>> ui.print_attribute(attr, [u'top', u'someClass'], one_value_per_line=False)
objectClass: top, someClass
>>> ui.print_attribute(attr, [u'top', u'someClass'])
objectClass: top
objectClass: someClass
"""
assert isinstance(attr, six.string_types)
if not isinstance(value, (list, tuple)):
# single-value attribute
self.print_indented(format % (attr, self.encode_binary(value)), indent)
else:
# multi-value attribute
if one_value_per_line:
for v in value:
self.print_indented(format % (attr, self.encode_binary(v)), indent)
else:
value = [self.encode_binary(v) for v in value]
if len(value) > 0 and type(value[0]) in (list, tuple):
# This is where we print failed add/remove members
for l in value:
text = ': '.join(l)
self.print_indented(format % (attr, self.encode_binary(text)), indent)
return
else:
if len(value) > 0:
text = ', '.join(str(v) for v in value)
else:
return
line_len = self.get_tty_width()
if line_len and text:
s_indent = '%s%s' % (
CLI_TAB * indent, ' ' * (len(attr) + 2)
)
line_len -= len(s_indent)
text = textwrap.wrap(
text, line_len, break_long_words=False
)
if len(text) == 0:
text = [u'']
else:
s_indent = u''
text = [text]
self.print_indented(format % (attr, text[0]), indent)
for line in text[1:]:
self.print_plain('%s%s' % (s_indent, line))
def print_entry1(self, entry, indent=1, attr_map={}, attr_order=['dn'],
one_value_per_line=True):
"""
Print an ldap entry dict.
"""
assert isinstance(entry, dict)
assert isinstance(attr_map, dict)
assert isinstance(attr_order, (list, tuple))
def print_attr(a):
if attr in attr_map:
self.print_attribute(
attr_map[attr], entry[attr], indent=indent, one_value_per_line=one_value_per_line
)
else:
self.print_attribute(
attr, entry[attr], indent=indent, one_value_per_line=one_value_per_line
)
for attr in attr_order:
if attr in entry:
print_attr(attr)
del entry[attr]
for attr in sorted(entry):
print_attr(attr)
def print_entries(self, entries, order=None, labels=None, flags=None, print_all=True, format='%s: %s', indent=1):
assert isinstance(entries, (list, tuple))
first = True
for entry in entries:
if not first:
print('')
first = False
self.print_entry(entry, order, labels, flags, print_all, format, indent)
def print_entry(self, entry, order=None, labels=None, flags=None, print_all=True, format='%s: %s', indent=1):
if isinstance(entry, (list, tuple)):
entry = dict(entry)
assert isinstance(entry, dict)
if labels is None:
labels = dict()
one_value_per_line = True
else:
one_value_per_line = False
if order is not None:
for key in order:
if key not in entry:
continue
label = labels.get(key, key)
flag = flags.get(key, [])
value = entry[key]
if ('suppress_empty' in flag and
value in [u'', '', (), [], None]):
continue
if isinstance(value, dict):
if frontend.entry_count(value) == 0:
continue
self.print_indented(format % (label, ''), indent)
self.print_entry(
value, order, labels, flags, print_all, format,
indent=indent+1
)
else:
if isinstance(value, (list, tuple)) and \
all(isinstance(val, dict) for val in value):
# this is a list of entries (dicts), not values
self.print_attribute(label, u'', format, indent)
self.print_entries(value, order, labels, flags, print_all,
format, indent+1)
else:
self.print_attribute(
label, value, format, indent, one_value_per_line
)
del entry[key]
if print_all:
for key in sorted(entry):
label = labels.get(key, key)
self.print_attribute(
key, entry[key], format, indent, one_value_per_line
)
def print_dashed(self, string, above=True, below=True, indent=0, dash='-'):
"""
Print a string with a dashed line above and/or below.
For example:
>>> ui = textui(api)
>>> ui.print_dashed('Dashed above and below.')
-----------------------
Dashed above and below.
-----------------------
>>> ui.print_dashed('Only dashed below.', above=False)
Only dashed below.
------------------
>>> ui.print_dashed('Only dashed above.', below=False)
------------------
Only dashed above.
"""
assert isinstance(dash, six.string_types)
assert len(dash) == 1
dashes = dash * len(string)
if above:
self.print_indented(dashes, indent)
self.print_indented(string, indent)
if below:
self.print_indented(dashes, indent)
def print_h1(self, text):
"""
Print a primary header at indentation level 0.
For example:
>>> ui = textui(api)
>>> ui.print_h1('A primary header')
================
A primary header
================
"""
self.print_dashed(text, indent=0, dash='=')
def print_h2(self, text):
"""
Print a secondary header at indentation level 1.
For example:
>>> ui = textui(api)
>>> ui.print_h2('A secondary header')
------------------
A secondary header
------------------
"""
self.print_dashed(text, indent=1, dash='-')
def print_name(self, name):
"""
Print a command name.
The typical use for this is to mark the start of output from a
command. For example, a hypothetical ``show_status`` command would
output something like this:
>>> ui = textui(api)
>>> ui.print_name('show_status')
------------
show-status:
------------
"""
self.print_dashed('%s:' % to_cli(name))
def print_header(self, msg, output):
self.print_dashed(msg % output)
def print_summary(self, msg):
"""
Print a summary at the end of a comand's output.
For example:
>>> ui = textui(api)
>>> ui.print_summary('Added user "jdoe"')
-----------------
Added user "jdoe"
-----------------
"""
self.print_dashed(msg)
def print_count(self, count, singular, plural=None):
"""
Print a summary count.
The typical use for this is to print the number of items returned
by a command, especially when this return count can vary. This
preferably should be used as a summary and should be the final text
a command outputs.
For example:
>>> ui = textui(api)
>>> ui.print_count(1, '%d goose', '%d geese')
-------
1 goose
-------
>>> ui.print_count(['Don', 'Sue'], 'Found %d user', 'Found %d users')
-------------
Found 2 users
-------------
If ``count`` is not an integer, it must be a list or tuple, and then
``len(count)`` is used as the count.
"""
if type(count) is not int:
assert type(count) in (list, tuple, dict)
count = len(count)
self.print_dashed(
self.choose_number(count, singular, plural)
)
def print_error(self, text):
print(' ** %s **' % unicode(text))
def prompt_helper(self, prompt, label, prompt_func=input):
"""Prompt user for input
Handles encoding the prompt and decoding the input.
On end of stream or ctrl+c, raise PromptFailed.
"""
try:
return self.decode(prompt_func(self.encode(prompt)))
except (KeyboardInterrupt, EOFError):
print()
raise PromptFailed(name=label)
def print_prompt_attribute_error(self, attribute, error):
self.print_plain('>>> %s: %s' % (attribute, error))
def prompt(self, label, default=None, get_values=None, optional=False):
"""
Prompt user for input.
"""
# TODO: Add tab completion using readline
if optional:
prompt = u'[%s]' % label
else:
prompt = u'%s' % label
if default is None:
prompt = u'%s: ' % prompt
else:
prompt = u'%s [%s]: ' % (prompt, default)
return self.prompt_helper(prompt, label)
def prompt_yesno(self, label, default=None):
"""
Prompt user for yes/no input. This method returns True/False according
to user response.
Parameter "default" should be True, False or None
If Default parameter is not None, user can enter an empty input instead
of Yes/No answer. Value passed to Default is returned in that case.
If Default parameter is None, user is asked for Yes/No answer until
a correct answer is provided. Answer is then returned.
"""
default_prompt = None
if default is not None:
if default:
default_prompt = "Yes"
else:
default_prompt = "No"
if default_prompt:
prompt = u'%s Yes/No (default %s): ' % (label, default_prompt)
else:
prompt = u'%s Yes/No: ' % label
while True:
data = self.prompt_helper(prompt, label).lower() #pylint: disable=E1103
if data in (u'yes', u'y'):
return True
elif data in ( u'n', u'no'):
return False
elif default is not None and data == u'':
return default
return default # pylint consinstent return statements
def prompt_password(self, label, confirm=True):
"""
Prompt user for a password or read it in via stdin depending
on whether there is a tty or not.
"""
if sys.stdin.isatty():
prompt = u'%s: ' % unicode(label)
repeat_prompt = unicode(_('Enter %(label)s again to verify: ') % dict(label=label))
while True:
pw1 = self.prompt_helper(prompt, label, prompt_func=getpass.getpass)
if not confirm:
return pw1
pw2 = self.prompt_helper(repeat_prompt, label, prompt_func=getpass.getpass)
if pw1 == pw2:
return pw1
else:
self.print_error(_('Passwords do not match!'))
else:
return self.decode(sys.stdin.readline().strip())
def select_entry(self, entries, format, attrs, display_count=True):
"""
Display a list of lines in with formatting defined in ``format``.
``attrs`` is a list of attributes in the format.
Prompt user for a selection and return the value (index of
``entries`` -1).
If only one entry is provided then always return 0.
Return: 0..n for the index of the selected entry
-1 if all entries should be displayed
-2 to quit, no entries to be displayed
"""
if not self.env.interactive or not sys.stdout.isatty():
return -1
counter = len(entries)
if counter == 0:
raise NotFound(reason=_("No matching entries found"))
i = 1
for e in entries:
# There is no guarantee that all attrs are in any given
# entry
d = {}
for a in attrs:
d[a] = e.get(a, '')
self.print_line("%d: %s" % (i, format % d))
i = i + 1
if display_count:
self.print_count(entries, 'Found %d match', 'Found %d matches')
while True:
try:
resp = self.prompt("Choose one: (1 - %s), a for all, q to quit" % counter)
except EOFError:
return -2
if resp.lower() == "q": #pylint: disable=E1103
return -2
if resp.lower() == "a": #pylint: disable=E1103
return -1
try:
selection = int(resp) - 1
if (selection >= 0 and selection < counter):
break
except Exception:
# fall through to the error msg
pass
self.print_line("Please enter a number between 1 and %s" % counter)
self.print_line('')
return selection
class help(frontend.Local):
"""
Display help for a command or topic.
"""
class Writer(object):
"""
Writer abstraction
"""
def __init__(self, outfile):
self.outfile = outfile
self.buffer = []
@property
def buffer_length(self):
length = 0
for line in self.buffer:
length += len(line.split("\n"))
return length
def append(self, string=u""):
self.buffer.append(unicode(string))
def write(self):
if self.buffer_length > get_terminal_height():
data = "\n".join(self.buffer).encode("utf-8")
open_in_pager(data)
else:
try:
for line in self.buffer:
print(line, file=self.outfile)
except IOError:
pass
takes_args = (
Str('command?', cli_name='topic', label=_('Topic or Command'),
doc=_('The topic or command name.')),
)
takes_options = (
Any('outfile?', flags=['no_option']),
)
has_output = tuple()
topic = None
def _get_topic(self, topic):
doc = u''
parent_topic = None
for package in self.api.packages:
module_name = '{0}.{1}'.format(package.__name__, topic)
try:
module = sys.modules[module_name]
except KeyError:
try:
module = importlib.import_module(module_name)
except ImportError:
continue
if module.__doc__ is not None:
doc = unicode(module.__doc__ or '').strip()
try:
parent_topic = module.topic
except AttributeError:
pass
return doc, parent_topic
def _count_topic_mcl(self, topic_name, mod_name):
mcl = max((self._topics[topic_name][1], len(mod_name)))
self._topics[topic_name][1] = mcl
def _on_finalize(self):
# {topic: ["description", mcl, {
# "subtopic": ["description", mcl, [commands]]}]}
# {topic: ["description", mcl, [commands]]}
self._topics = {}
# [builtin_commands]
self._builtins = []
# build help topics
for c in self.api.Command:
if c is not self.api.Command.get_plugin(c.name):
continue
if c.NO_CLI:
continue
if c.topic is not None:
doc, topic_name = self._get_topic(c.topic)
doc = doc.split('\n', 1)[0]
if topic_name is None: # a module without grouping
topic_name = c.topic
if topic_name in self._topics:
self._topics[topic_name][2].append(c)
else:
self._topics[topic_name] = [doc, 0, [c]]
mcl = max((self._topics[topic_name][1], len(c.name)))
self._topics[topic_name][1] = mcl
else: # a module grouped in a topic
topic = self._get_topic(topic_name)
mod_name = c.topic
if topic_name in self._topics:
if mod_name in self._topics[topic_name][2]:
self._topics[topic_name][2][mod_name][2].append(c)
else:
self._topics[topic_name][2][mod_name] = [
doc, 0, [c]]
self._count_topic_mcl(topic_name, mod_name)
# count mcl for for the subtopic
mcl = max((
self._topics[topic_name][2][mod_name][1],
len(c.name)))
self._topics[topic_name][2][mod_name][1] = mcl
else:
self._topics[topic_name] = [
topic[0].split('\n', 1)[0],
0,
{mod_name: [doc, 0, [c]]}]
self._count_topic_mcl(topic_name, mod_name)
else:
self._builtins.append(c)
# compute maximum topic length
topics = list(self._topics) + [c.name for c in self._builtins]
self._mtl = max(len(s) for s in topics)
super(help, self)._on_finalize()
def run(self, key=None, outfile=None, **options):
if outfile is None:
outfile = sys.stdout
writer = self.Writer(outfile)
name = from_cli(key)
if key is None:
self.api.parser.print_help(outfile)
return
if name == "topics":
self.print_topics(outfile)
return
if name in self._topics:
self.print_commands(name, outfile)
elif name in self.Command:
cmd = self.Command[name]
if cmd.NO_CLI:
raise HelpError(topic=name)
self.Backend.cli.build_parser(cmd).print_help(outfile)
elif any(name in t[2] for t in self._topics.values()
if type(t[2]) is dict):
self.print_commands(name, outfile)
elif name == "commands":
mcl = 0
for cmd_plugin in self.Command:
if cmd_plugin is not self.Command.get_plugin(cmd_plugin.name):
continue
if cmd_plugin.NO_CLI:
continue
mcl = max(mcl, len(cmd_plugin.name))
writer.append('{0} {1}'.format(
to_cli(cmd_plugin.name).ljust(mcl), cmd_plugin.summary))
else:
raise HelpError(topic=name)
writer.write()
def print_topics(self, outfile):
writer = self.Writer(outfile)
for t, topic in sorted(self._topics.items()):
writer.append('{0} {1}'.format(
to_cli(t).ljust(self._mtl), topic[0]))
writer.write()
def print_commands(self, topic, outfile):
writer = self.Writer(outfile)
if topic in self._topics and type(self._topics[topic][2]) is dict:
# we want to display topic which has subtopics
for subtopic in self._topics[topic][2]:
doc = self._topics[topic][2][subtopic][0]
mcl = self._topics[topic][1]
writer.append(' {0} {1}'.format(
to_cli(subtopic).ljust(mcl), doc))
else:
# we want to display subtopic or a topic which has no subtopics
if topic in self._topics:
mcl = self._topics[topic][1]
commands = self._topics[topic][2]
else:
commands = []
for t in self._topics:
if type(self._topics[t][2]) is not dict:
continue
if topic not in self._topics[t][2]:
continue
mcl = self._topics[t][2][topic][1]
commands = self._topics[t][2][topic][2]
break
doc, _topic = self._get_topic(topic)
if topic not in self.Command and len(commands) == 0:
raise HelpError(topic=topic)
writer.append(doc)
if commands:
writer.append()
writer.append(_('Topic commands:'))
for c in commands:
writer.append(
' {0} {1}'.format(
to_cli(c.name).ljust(mcl), c.summary))
writer.append()
writer.append(_('To get command help, use:'))
writer.append(_(' ipa <command> --help'))
writer.append()
writer.write()
class show_mappings(frontend.Command):
"""
Show mapping of LDAP attributes to command-line option.
"""
takes_args = (
Str('command_name',
label=_('Command name'),
),
)
has_output = tuple()
topic = None
def run(self, command_name, **options):
command_name = from_cli(command_name)
if command_name not in self.Command:
raise CommandError(name=command_name)
params = self.Command[command_name].options
out = [('Parameter','LDAP attribute'),
('=========','==============')]
mcl = len(out[0][0])
for param in params():
if param.exclude and 'webui' in param.exclude:
continue
out.append((param.cli_name, param.param_spec))
mcl = max(mcl,len(param.cli_name))
for item in out:
print(to_cli(item[0]).ljust(mcl)+' : '+item[1])
class console(frontend.Command):
"""Start the IPA interactive Python console, or run a script.
An IPA API object is initialized and made available
in the `api` global variable.
"""
takes_args = ('filename?',)
has_output = tuple()
topic = None
def run(self, filename=None, **options):
local = dict(api=self.api)
if filename:
try:
script = open(filename)
except IOError as e:
sys.exit("%s: %s" % (e.filename, e.strerror))
try:
with script:
exec(script, globals(), local)
except Exception:
traceback.print_exc()
sys.exit(1)
else:
code.interact(
'(Custom IPA interactive Python console)',
local=local
)
class show_api(frontend.Command):
'Show attributes on dynamic API object'
takes_args = ('namespaces*',)
topic = None
def run(self, namespaces=None):
if namespaces is None:
names = tuple(self.api)
else:
for name in namespaces:
if name not in self.api:
raise NoSuchNamespaceError(name=name)
names = namespaces
lines = self.__traverse(names)
ml = max(len(l[1]) for l in lines)
self.Backend.textui.print_name('run')
first = True
for line in lines:
if line[0] == 0 and not first:
print('')
if first:
first = False
print('%s%s %r' % (
' ' * line[0],
line[1].ljust(ml),
line[2],
))
if len(lines) == 1:
s = '1 attribute shown.'
else:
s = '%d attributes show.' % len(lines)
self.Backend.textui.print_dashed(s)
def __traverse(self, names):
lines = []
for name in names:
namespace = self.api[name]
self.__traverse_namespace('%s' % name, namespace, lines)
return lines
def __traverse_namespace(self, name, namespace, lines, tab=0):
lines.append((tab, name, namespace))
for member_name in namespace:
member = namespace[member_name]
lines.append((tab + 1, member_name, member))
if not hasattr(member, '__iter__'):
continue
for n in member:
attr = member[n]
if isinstance(attr, plugable.APINameSpace) and len(attr) > 0:
self.__traverse_namespace(n, attr, lines, tab + 2)
cli_application_commands = (
help,
console,
show_api,
)
class Collector(object):
def __init__(self):
object.__setattr__(self, '_Collector__options', {})
def __setattr__(self, name, value):
if name in self.__options:
v = self.__options[name]
if type(v) is tuple:
value = v + (value,)
else:
value = (v, value)
# pylint: disable=unsupported-assignment-operation
self.__options[name] = value
# pylint: enable=unsupported-assignment-operation
object.__setattr__(self, name, value)
def __todict__(self):
return dict(self.__options)
class CLIOptionParserFormatter(optparse.IndentedHelpFormatter):
def format_argument(self, name, help_string):
result = []
opt_width = self.help_position - self.current_indent - 2
if len(name) > opt_width:
name = "%*s%s\n" % (self.current_indent, "", name)
indent_first = self.help_position
else: # start help on same line as name
name = "%*s%-*s " % (self.current_indent, "", opt_width, name)
indent_first = 0
result.append(name)
if help_string:
help_lines = textwrap.wrap(help_string, self.help_width)
result.append("%*s%s\n" % (indent_first, "", help_lines[0]))
result.extend(["%*s%s\n" % (self.help_position, "", line)
for line in help_lines[1:]])
elif name[-1] != "\n":
result.append("\n")
return "".join(result)
class CLIOptionParser(optparse.OptionParser):
"""
This OptionParser subclass adds an ability to print positional
arguments in CLI help. Custom formatter is used to format the argument
list in the same way as OptionParser formats options.
"""
def __init__(self, *args, **kwargs):
self._arguments = []
if 'formatter' not in kwargs:
kwargs['formatter'] = CLIOptionParserFormatter()
optparse.OptionParser.__init__(self, *args, **kwargs)
def format_option_help(self, formatter=None):
"""
Prepend argument help to standard OptionParser's option help
"""
option_help = optparse.OptionParser.format_option_help(self, formatter)
if isinstance(formatter, CLIOptionParserFormatter):
heading = unicode(_("Positional arguments"))
arguments = [formatter.format_heading(heading)]
formatter.indent()
for (name, help_string) in self._arguments:
arguments.append(formatter.format_argument(name, help_string))
formatter.dedent()
if len(arguments) > 1:
# there is more than just the heading
arguments.append(u"\n")
else:
arguments = []
option_help = "".join(arguments) + option_help
return option_help
def add_argument(self, name, help_string):
self._arguments.append((name, help_string))
class cli(backend.Executioner):
"""
Backend plugin for executing from command line interface.
"""
def get_command(self, argv):
"""Given CLI arguments, return the Command to use
On incorrect invocation, prints out a help message and returns None
"""
if len(argv) == 0:
self.Command.help(outfile=sys.stderr)
print(file=sys.stderr)
print('Error: Command not specified', file=sys.stderr)
sys.exit(2)
(key, argv) = (argv[0], argv[1:])
name = from_cli(key)
if name not in self.Command and len(argv) == 0:
try:
self.Command.help(unicode(key), outfile=sys.stderr)
except HelpError:
pass
if name not in self.Command or self.Command[name].NO_CLI:
raise CommandError(name=key)
cmd = self.Command[name]
return cmd
def process_keyword_arguments(self, cmd, kw):
"""Get the keyword arguments for a Command"""
if self.env.interactive:
self.prompt_interactively(cmd, kw)
try:
callbacks = cmd.get_callbacks('interactive_prompt')
except AttributeError:
pass
else:
for callback in callbacks:
callback(cmd, kw)
self.load_files(cmd, kw)
return kw
def run(self, argv):
cmd = self.get_command(argv)
if cmd is None:
return None
name = cmd.full_name
kw = self.parse(cmd, argv[1:])
if not isinstance(cmd, frontend.Local):
self.create_context()
try:
kw = self.process_keyword_arguments(cmd, kw)
result = self.execute(name, **kw)
if callable(cmd.output_for_cli):
for param in cmd.params():
if param.password and param.name in kw:
del kw[param.name]
(args, options) = cmd.params_2_args_options(**kw)
rv = cmd.output_for_cli(self.api.Backend.textui, result, *args, **options)
if rv:
return rv
else:
return 0
finally:
self.destroy_context()
return None
def parse(self, cmd, argv):
parser = self.build_parser(cmd)
(collector, args) = parser.parse_args(argv, Collector())
options = collector.__todict__()
kw = cmd.args_options_2_params(*args, **options)
return dict(self.parse_iter(cmd, kw))
# FIXME: Probably move decoding to Command, use same method regardless of
# request source:
def parse_iter(self, cmd, kw):
"""
Decode param values if appropriate.
"""
for (key, value) in kw.items():
yield (key, self.Backend.textui.decode(value))
def build_parser(self, cmd):
parser = CLIOptionParser(
usage=' '.join(self.usage_iter(cmd)),
description=unicode(cmd.doc),
formatter=IPAHelpFormatter(),
)
option_groups = {}
def _get_option_group(group_name):
"""Get or create an option group for the given name"""
option_group = option_groups.get(group_name)
if option_group is None:
option_group = optparse.OptionGroup(parser, group_name)
parser.add_option_group(option_group)
option_groups[group_name] = option_group
return option_group
for option in cmd.options():
kw = dict(
dest=option.name,
help=unicode(option.doc),
)
if 'no_option' in option.flags:
continue
if option.password and self.env.interactive:
kw['action'] = 'store_true'
elif isinstance(option, Flag):
if option.default is True:
kw['action'] = 'store_false'
else:
kw['action'] = 'store_true'
else:
kw['metavar'] = option.cli_metavar
cli_name = to_cli(option.cli_name)
option_names = ['--%s' % cli_name]
if option.cli_short_name:
option_names.append('-%s' % option.cli_short_name)
opt = optparse.make_option(*option_names, **kw)
if option.option_group is None:
parser.add_option(opt)
else:
_get_option_group(option.option_group).add_option(opt)
if option.deprecated_cli_aliases:
new_kw = dict(kw)
new_kw['help'] = _('Same as --%s') % cli_name
if isinstance(option, Enum):
new_kw['metavar'] = 'VAL'
group = _get_option_group(unicode(_('Deprecated options')))
for alias in option.deprecated_cli_aliases:
name = '--%s' % alias
group.add_option(optparse.make_option(name, **new_kw))
for arg in cmd.args():
name = self.__get_arg_name(arg, format_name=False)
if 'no_option' in arg.flags or name is None:
continue
doc = unicode(arg.doc)
parser.add_argument(name, doc)
return parser
def __get_arg_name(self, arg, format_name=True):
if arg.password:
return None
name = to_cli(arg.cli_name).upper()
if not format_name:
return name
if arg.multivalue:
name = '%s...' % name
if arg.required:
return name
else:
return '[%s]' % name
def usage_iter(self, cmd):
yield 'Usage: %%prog [global-options] %s' % to_cli(cmd.name)
for arg in cmd.args():
name = self.__get_arg_name(arg)
if name is None:
continue
yield name
yield '[options]'
def prompt_interactively(self, cmd, kw):
"""
Interactively prompt for missing or invalid values.
By default this method will only prompt for *required* Param that
have a missing or invalid value. However, if
``self.env.prompt_all`` is ``True``, this method will prompt for any
params that have a missing values, even if the param is optional.
"""
honor_alwaysask = True
for param in cmd.params():
if param.alwaysask and param.name in kw:
honor_alwaysask = False
break
for param in cmd.params():
if (param.required and param.name not in kw) or \
(param.alwaysask and honor_alwaysask) or self.env.prompt_all:
if param.autofill:
kw[param.name] = cmd.get_default_of(param.name, **kw)
if param.name in kw and kw[param.name] is not None:
if param.autofill:
del kw[param.name]
continue
if param.password:
kw[param.name] = self.Backend.textui.prompt_password(
param.label, param.confirm
)
else:
default = cmd.get_default_of(param.name, **kw)
optional = param.alwaysask or not param.required
value = cmd.prompt_param(param,
default=default,
optional=optional,
kw=kw)
if value is not None:
kw[param.name] = value
elif param.password and kw.get(param.name, False) is True:
kw[param.name] = self.Backend.textui.prompt_password(
param.label, param.confirm
)
def load_files(self, cmd, kw):
"""
Load files from File parameters.
This has to be done after all required parameters have been read
(i.e. after prompt_interactively has or would have been called)
AND before they are passed to the command. This is because:
1) we need to be sure no more files are going to be added
2) we load files from the machine where the command was executed
3) the webUI will use a different way of loading files
"""
for p in cmd.params():
if isinstance(p, (File, BinaryFile)):
# FIXME: this only reads the first file
raw = None
if p.name in kw:
if type(kw[p.name]) in (tuple, list):
fname = kw[p.name][0]
else:
fname = kw[p.name]
try:
with open(fname, p.open_mode) as f:
raw = f.read()
except IOError as e:
raise ValidationError(
name=to_cli(p.cli_name),
error='%s: %s:' % (fname, e.args[1])
)
elif p.stdin_if_missing:
try:
if six.PY3 and p.type is bytes:
# pylint: disable=no-member
raw = sys.stdin.buffer.read()
# pylint: enable=no-member
else:
raw = sys.stdin.read()
except IOError as e:
raise ValidationError(
name=to_cli(p.cli_name), error=e.args[1]
)
if raw:
if p.type is bytes:
kw[p.name] = raw
else:
kw[p.name] = self.Backend.textui.decode(raw)
elif p.required:
raise ValidationError(
name=to_cli(p.cli_name), error=_('No file to read')
)
class IPAHelpFormatter(optparse.IndentedHelpFormatter):
"""Formatter suitable for printing IPA command help
The default help formatter reflows text to fit the terminal, but it
ignores line/paragraph breaks.
IPA's descriptions already have correct line breaks. This formatter
doesn't touch them (save for removing initial/trailing whitespace).
"""
def format_description(self, description):
if description:
return description.strip()
else:
return ""
cli_plugins = (
cli,
textui,
console,
help,
show_mappings,
)
def run(api):
error = None
try:
(_options, argv) = api.bootstrap_with_global_options(context='cli')
try:
check_client_configuration()
except ScriptError as e:
sys.exit(e)
for klass in cli_plugins:
api.add_plugin(klass)
api.finalize()
if not 'config_loaded' in api.env and not 'help' in argv:
raise NotConfiguredError()
sys.exit(api.Backend.cli.run(argv))
except KeyboardInterrupt:
print('')
logger.info('operation aborted')
except PublicError as e:
error = e
except Exception as e:
logger.exception('%s: %s', e.__class__.__name__, str(e))
error = InternalError()
if error is not None:
assert isinstance(error, PublicError)
logger.error(error.strerror)
sys.exit(error.rval)