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encrypt_password docs moved to extension module and updated

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This commit is contained in:
Daniele Varrazzo 2018-05-20 20:13:04 +01:00
parent a3063900ee
commit 9e4f89a2a1
2 changed files with 32 additions and 27 deletions
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27
doc/src/connection.rst
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@ -676,33 +676,6 @@ The ``connection`` class
.. __: http://www.postgresql.org/docs/current/static/libpq-status.html#LIBPQ-PQTRANSACTIONSTATUS
.. method:: encrypt_password(password, user, [algorithm])
Returns the encrypted form of a PostgreSQL password based on the
current password encryption algorithm.
Raises `~psycopg2.NotSupportedError` if the ``psycopg2`` module was
compiled with a ``libpq`` version lesser than 10 (which can be detected
by the `~psycopg2.__libpq_version__` constant), when encryption
algorithm other than 'md5' is specified for the server version greater
than, or equal to 10.
Ignores the encrytion algorithm for servers version less than 10, and
always uses 'md5' as encryption algorithm.
.. seealso:: libpq docs for `PQencryptPasswordConn()`__ for details.
.. __: https://www.postgresql.org/docs/devel/static/libpq-misc.html#libpq-pqencryptpasswordconn
.. seealso:: libpq docs for `PQencryptPassword()`__ for details.
.. __: https://www.postgresql.org/docs/devel/static/libpq-misc.html#libpq-pqencryptpassword
.. seealso:: libpq docs for `password_encryption`__ for details.
.. __: https://www.postgresql.org/docs/devel/static/runtime-config-connection.html#guc-password-encryption
.. index::
pair: Protocol; Version

32
doc/src/extensions.rst
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@ -555,6 +555,38 @@ Other functions
.. __: http://www.postgresql.org/docs/current/static/libpq-exec.html#LIBPQ-PQESCAPEIDENTIFIER
.. method:: encrypt_password(password, user, scope=None, algorithm=None)
Return the encrypted form of a PostgreSQL password.
:param password: the cleartext password to encrypt
:param user: the name of the user to use the password for
:param scope: the scope to encrypt the password into; if *algorithm* is
``md5`` it can be `!None`
:type scope: `connection` or `cursor`
:param algorithm: the password encryption algorithm to use
The *algorithm* ``md5`` is always supported. Other algorithms are only
supported if the client libpq version is at least 10 and may require a
compatible server version: check the `PostgreSQL encryption
documentation`__ to know the algorithms supported by your server.
.. __: https://www.postgresql.org/docs/current/static/encryption-options.html
Using `!None` as *algorithm* will result in querying the server to know the
current server password encryption setting, which is a blocking operation:
query the server separately and specify a value for *algorithm* if you
want to maintain a non-blocking behaviour.
.. versionadded:: 2.8
.. seealso:: PostgreSQL docs for the `password_encryption`__ setting, libpq `PQencryptPasswordConn()`__, `PQencryptPassword()`__ functions.
.. __: https://www.postgresql.org/docs/current/static/runtime-config-connection.html#GUC-PASSWORD-ENCRYPTION
.. __: https://www.postgresql.org/docs/current/static/libpq-misc.html#LIBPQ-PQENCRYPTPASSWORDCONN
.. __: https://www.postgresql.org/docs/current/static/libpq-misc.html#LIBPQ-PQENCRYPTPASSWORD
.. index::
pair: Isolation level; Constants