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Most of the improvements were in the new SCRAM code: * In SCRAM protocol violation messages, use errdetail to provide the details. * If pg_backend_random() fails, throw an ERROR rather than just LOG. We shouldn't continue authentication if we can't generate a random nonce. * Use ereport() rather than elog() for the "invalid SCRAM verifier" messages. They shouldn't happen, if everything works, but it's not inconceivable that someone would have invalid scram verifiers in pg_authid, e.g. if a broken client application was used to generate the verifier. But this change applied to old code: * Use ERROR rather than COMMERROR for protocol violation errors. There's no reason to not tell the client what they did wrong. The client might be confused already, so that it cannot read and display the error correctly, but let's at least try. In the "invalid password packet size" case, we used to actually continue with authentication anyway, but that is now a hard error. Patch by Michael Paquier and me. Thanks to Daniel Varrazzo for spotting the typo in one of the messages that spurred the discussion and these larger changes. Discussion: https://www.postgresql.org/message-id/CA%2Bmi_8aZYLhuyQi1Jo0hO19opNZ2OEATEOM5fKApH7P6zTOZGg%40mail.gmail.com |
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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: https://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 https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.