dbd69118c0
The rule is that if pg_authid.rolpassword begins with "md5" and has the right length, it's an MD5 hash, otherwise it's a plaintext password. The idiom has been to use isMD5() to check for that, but that gets awkward, when we add new kinds of verifiers, like the verifiers for SCRAM authentication in the pending SCRAM patch set. Replace isMD5() with a new get_password_type() function, so that when new verifier types are added, we don't need to remember to modify every place that currently calls isMD5(), to also recognize the new kinds of verifiers. Also, use the new plain_crypt_verify function in passwordcheck, so that it doesn't need to know about MD5, or in the future, about other kinds of hashes or password verifiers. Reviewed by Michael Paquier and Peter Eisentraut. Discussion: https://www.postgresql.org/message-id/2d07165c-1793-e243-a2a9-e45b624c7580@iki.fi
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: http://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.