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phorge-phorge/resources/sql/autopatches/20180120.auth.02.passwordxaction.sql
epriestley 9c00a43784 Add a more modern object for storing password hashes
Summary:
Ref T13043. Currently:

  - Passwords are stored separately in the "VCS Passwords" and "User" tables and don't share as much code as they could.
  - Because User objects are all over the place in the code, password hashes are all over the place too (i.e., often somewhere in process memory). This is a very low-severity, theoretical sort of issue, but it could make leaving a stray `var_dump()` in the code somewhere a lot more dangerous than it otherwise is. Even if we never do this, third-party developers might. So it "feels nice" to imagine separating this data into a different table that we rarely load.
  - Passwords can not be //revoked//. They can be //deleted//, but users can set the same password again. If you believe or suspect that a password may have been compromised, you might reasonably prefer to revoke it and force the user to select a //different// password.

This change prepares to remedy these issues by adding a new, more modern dedicated password storage table which supports storing multiple password types (account vs VCS), gives passwords real PHIDs and transactions, supports DestructionEngine, supports revocation, and supports `bin/auth revoke`.

It doesn't actually make anything use this new table yet. Future changes will migrate VCS passwords and account passwords to this table.

(This also gives third party applications a reasonable place to store password hashes in a consistent way if they have some need for it.)

Test Plan: Added some basic unit tests to cover general behavior. This is just skeleton code for now and will get more thorough testing when applications move.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13043

Differential Revision: https://secure.phabricator.com/D18894
2018-01-22 15:35:28 -08:00

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SQL

CREATE TABLE {$NAMESPACE}_auth.auth_passwordtransaction (
id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
phid VARBINARY(64) NOT NULL,
authorPHID VARBINARY(64) NOT NULL,
objectPHID VARBINARY(64) NOT NULL,
viewPolicy VARBINARY(64) NOT NULL,
editPolicy VARBINARY(64) NOT NULL,
commentPHID VARBINARY(64) DEFAULT NULL,
commentVersion INT UNSIGNED NOT NULL,
transactionType VARCHAR(32) COLLATE {$COLLATE_TEXT} NOT NULL,
oldValue LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
newValue LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
contentSource LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
metadata LONGTEXT COLLATE {$COLLATE_TEXT} NOT NULL,
dateCreated INT UNSIGNED NOT NULL,
dateModified INT UNSIGNED NOT NULL,
UNIQUE KEY `key_phid` (`phid`),
KEY `key_object` (`objectPHID`)
) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};