Current File : //opt/plesk/python/2.7/lib/python2.7/site-packages/paramiko/config.pyc
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Configuration file (aka ``ssh_config``) support.
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Representation of config information as stored in the format used by
OpenSSH. Queries can be made via `lookup`. The format is described in
OpenSSH's ``ssh_config`` man page. This class is provided primarily as a
convenience to posix users (since the OpenSSH format is a de-facto
standard on posix) but should work fine on Windows too.
.. versionadded:: 1.6
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Create a new OpenSSH config object.
Note: the newer alternate constructors `from_path`, `from_file` and
`from_text` are simpler to use, as they parse on instantiation. For
example, instead of::
config = SSHConfig()
config.parse(open("some-path.config")
you could::
config = SSHConfig.from_file(open("some-path.config"))
# Or more directly:
config = SSHConfig.from_path("some-path.config")
# Or if you have arbitrary ssh_config text from some other source:
config = SSHConfig.from_text("Host foo\n\tUser bar")
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Create a new, parsed `SSHConfig` from ``text`` string.
.. versionadded:: 2.7
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Create a new, parsed `SSHConfig` from the file found at ``path``.
.. versionadded:: 2.7
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Create a new, parsed `SSHConfig` from file-like object ``flo``.
.. versionadded:: 2.7
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Read an OpenSSH config from the given file object.
:param file_obj: a file-like object to read the config file from
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Return a dict (`SSHConfigDict`) of config options for a given hostname.
The host-matching rules of OpenSSH's ``ssh_config`` man page are used:
For each parameter, the first obtained value will be used. The
configuration files contain sections separated by ``Host`` and/or
``Match`` specifications, and that section is only applied for hosts
which match the given patterns or keywords
Since the first obtained value for each parameter is used, more host-
specific declarations should be given near the beginning of the file,
and general defaults at the end.
The keys in the returned dict are all normalized to lowercase (look for
``"port"``, not ``"Port"``. The values are processed according to the
rules for substitution variable expansion in ``ssh_config``.
Finally, please see the docs for `SSHConfigDict` for deeper info on
features such as optional type conversion methods, e.g.::
conf = my_config.lookup('myhost')
assert conf['passwordauthentication'] == 'yes'
assert conf.as_bool('passwordauthentication') is True
.. note::
If there is no explicitly configured ``HostName`` value, it will be
set to the being-looked-up hostname, which is as close as we can
get to OpenSSH's behavior around that particular option.
:param str hostname: the hostname to lookup
.. versionchanged:: 2.5
Returns `SSHConfigDict` objects instead of dict literals.
.. versionchanged:: 2.7
Added canonicalization support.
.. versionchanged:: 2.7
Added ``Match`` support.
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Return canonicalized version of ``hostname``.
:param str hostname: Target hostname.
:param options: An `SSHConfigDict` from a previous lookup pass.
:param domains: List of domains (e.g. ``["paramiko.org"]``).
:returns: A canonicalized hostname if one was found, else ``None``.
.. versionadded:: 2.7
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Return the set of literal hostnames defined in the SSH config (both
explicit hostnames and wildcard entries).
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Tokenize a string based on current config/hostname data.
:param config: Current config data.
:param target_hostname: Original target connection hostname.
:param key: Config key being tokenized (used to filter token list).
:param value: Config value being tokenized.
:returns: The tokenized version of the input ``value`` string.
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Given config ``key``, return list of token strings to tokenize.
.. note::
This feels like it wants to eventually go away, but is used to
preserve as-strict-as-possible compatibility with OpenSSH, which
for whatever reason only applies some tokens to some config keys.
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Return a dict of config options with expanded substitutions
for a given original & current target hostname.
Please refer to :doc:`/api/config` for details.
:param dict config: the currently parsed config
:param str hostname: the hostname whose config is being looked up
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Return a list of host_names from host value.
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Parse a specific Match config line into a list-of-dicts for its values.
Performs some parse-time validation as well.
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Try looking up ``hostname`` in an IPv4 or IPv6 specific manner.
This is an odd duck due to needing use in two divergent use cases. It looks
up ``AddressFamily`` in ``options`` and if it is ``inet`` or ``inet6``,
this function uses `socket.getaddrinfo` to perform a family-specific
lookup, returning the result if successful.
In any other situation -- lookup failure, or ``AddressFamily`` being
unspecified or ``any`` -- ``None`` is returned instead and the caller is
expected to do something situation-appropriate like calling
`socket.gethostbyname`.
:param str hostname: Hostname to look up.
:param options: `SSHConfigDict` instance w/ parsed options.
:returns: ``getaddrinfo``-style tuples, or ``None``, depending.
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Returns the host's fqdn on request as string.
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A dictionary wrapper/subclass for per-host configuration structures.
This class introduces some usage niceties for consumers of `SSHConfig`,
specifically around the issue of variable type conversions: normal value
access yields strings, but there are now methods such as `as_bool` and
`as_int` that yield casted values instead.
For example, given the following ``ssh_config`` file snippet::
Host foo.example.com
PasswordAuthentication no
Compression yes
ServerAliveInterval 60
the following code highlights how you can access the raw strings as well as
usefully Python type-casted versions (recalling that keys are all
normalized to lowercase first)::
my_config = SSHConfig()
my_config.parse(open('~/.ssh/config'))
conf = my_config.lookup('foo.example.com')
assert conf['passwordauthentication'] == 'no'
assert conf.as_bool('passwordauthentication') is False
assert conf['compression'] == 'yes'
assert conf.as_bool('compression') is True
assert conf['serveraliveinterval'] == '60'
assert conf.as_int('serveraliveinterval') == 60
.. versionadded:: 2.5
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Express given key's value as a boolean type.
Typically, this is used for ``ssh_config``'s pseudo-boolean values
which are either ``"yes"`` or ``"no"``. In such cases, ``"yes"`` yields
``True`` and any other value becomes ``False``.
.. note::
If (for whatever reason) the stored value is already boolean in
nature, it's simply returned.
.. versionadded:: 2.5
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Express given key's value as an integer, if possible.
This method will raise ``ValueError`` or similar if the value is not
int-appropriate, same as the builtin `int` type.
.. versionadded:: 2.5
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