Often, patch and security releases do not require schema migrations or
data migrations. However, if an empty upgrade class and associated
scripts are not defined, the upgrade process will break. With this
change, if a release does not have an upgrade, a noop DbUpgrade is added
to the upgrade path. This approach allows the upgrade to proceed and
for the database to properly reflect the installed version. This change
should make the release process simpler as RMs no longer need to
rememeber to create this boilerplate code when starting a new release.
Beginning with the 4.8.2.0 and 4.9.1.0 releases, the project will
formally adopt a four (4) position release number to properly accomodate
rekeases that contain only CVE fixes. The DatabaseUpgradeChecker and
Version classes made assumptions that they would always parse and
compare three (3) position version numbers. This change adds the
CloudStackVersion value object that supports both three (3) and four (4)
version numbers. It encapsulates version comparsion logic, as well as,
the rules to allow three (3) and four (4) to interoperate.
* Modifies DatabaseUpgradeChecker to handle derive an upgrade path for
a version that was not explicitly specified. It determines the
releases the first release before it with database migrations and uses
that list as the basis for the list for version being calculated. A
noop upgrade is then added to the list which causes no schema changes
or data migrations, but will update the database to the version.
* Adds unit tests for the upgrade path calculation logic in
DatabaseUpgradeChecker
* Removes dummy upgrade logic for the 4.8.2.0 introduced in previous
versions of this patch
* Introduces the CloudStackVersion value object which parses and
compares three (3) and four (4) position version numbers. This class
is intended to replace com.cloud.maint.Version.
* Adds the junit-dataprovider dependency -- allowing test data to be
concisely generated separately from the execution of a test case.
Used extensively in the CloudStackVersionTest.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
The authenticators now have an encode function that cloudstack will use to encode the user supplied password before storing it in the database. This makes it easier to add other authenticators with other hashing algorithms. The requires a two step approach to creating the admin account at first start as the authenticators are only present in the management-server component locator.
The SHA256 salted authenticator make use of this new system and adds a hashing algorithm based on SHA256 with a salt. This type of hash is far less susceptible to rainbow table attacks.
To make use of these new features the users password will be sent over the wire just as he typed it and it will be transformed into a hash on the server and compared with the stored password. This means that the hash will not go over the wire anymore.
The default authenticator in components.xml is still set to md5 for backwards compatibility. For new installations the sha256 could be enabled.
John Burwell
Will Stevens
Remi Bergsma
Hugo Trippaers
Chip Childers
Rohit Yadav