Add SCRAM-SHA-256 authentication to this library

[raz-varren]

These changes add SCRAM-SHA-256 authentication to the pq library, by adding a slightly modified version of the mgo scram library and implementing it's functionality in the auth section of conn.go.

[hlinnaka]

See also PR #788 and PR #608.

[davidfetter]

Bump

[Neustradamus]

A lot of years after, it will be supported one day?

• Feature request: Add support for SCRAM-SHA-256 password authentication #817
• Use a safe implementation of SCRAM. #914
• Support scram password generation #941
• Add support for SCRAM-SHA-256 authentication. #608
• Inform user of unsupported scram auth method #621
• Support for SCRAM-SHA-256 authentication #788
• Add SCRAM-SHA-256 authentication to this library #833

Linked to:

• State of Play scram-sasl/info#1

[msva]

@mjibson ping? That PR looks like be based on current master and so nothing prevent it from merging.

[maddyblue]

We're entering the no tests yolo phase of lib/pq. But since this didn't touch any other auth methods, I'll just assume one of you tested that it works. If someone wants I'd merge a test for this.

[msva]

Yeah, at least, it was me, who checked it and, well, it connects, authenticates and looks like works fine

[ptman]

@mjibson thanks for merging. did you look at the other PRs implementing it with tests?

[maddyblue]

When I looked those PRs weren't click-mergable, which is what I was looking for. If someone wants to port the tests from the other PRs I'll merge those, but I'm probably not going to do that myself.

[Neustradamus]

Please note that there were several PRs for this point...

• Add SCRAM-SHA-256 authentication to this library #833 (comment)