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wallet To-Do List
Minimum required to replace leland_srvtab:
* Add support to the test suite for specifying a different database than
SQLite for testing. For MySQL and other database types that we can't
just delete, also requires adding a method to Wallet::Schema to drop all
of our tables and indices in reverse order of creation.
* Write the remctl configuration and finish Debian packaging of the
wallet client and server.
Release 0.3:
* Write the LDAP entitlement ACL verifier.
* Write the PTS ACL verifier.
* Use the class names in the database tables when loading object and
ACL verifier implementations.
Release 1.0:
* Add POD testing for the client and server programs.
* Add POD coverage testing using Test::POD::Coverage for the server
modules.
* Provide a way to get history for deleted objects and ACLs.
* Display ACL names rather than index numbers when displaying history of
owner and acl_* settings.
* Provide an interface to list all objects in the database by type, by
owner (including null), or by all uses of an ACL.
* Provide an interface to list all ACLs in the database. Most
interestingly, an interface to list all empty ACLs.
* Add a help function to wallet-backend listing the commands.
* The client may not compile against Heimdal due to changes in how the
krb5_keyblock structure is laid out. Check and fix.
* Rewrite the client test suite to use Perl and to make better use of
shared code so that it can be broken into function components.
* Stop hard-coding library names in the build system for kasetkey and
wallet.
* Add a test suite for kasetkey.
* Compiling kasetkey should be optional and probably not enabled by
default.
* Log failures in the wallet-backend properly, which also requires
catching all exceptions.
* Implement default ACL policy to allow dynamic object creation on first
request for keytabs.
* Implement special handling for keytabs in the wallet client.
* Add support to the wallet client for getting Kerberos tickets, using the
-u option similar to leland_srvtab. Needs good error messages on
Kerberos failures.
* The wallet client should read configuration information from krb5.conf,
and possibly from some other configuration as well.
* Error messages from ACL operations should refer to the ACLs by name
instead of by ID.
* Add the database schema version to a global table so that we can use it
to support schema upgrades in the future.
* On upgrades, support adding new object types and ACL verifiers to the
class tables.
* Write a wallet-admin program to provide an interface to things like
database initialization and, eventually, upgrades.
* Implement store support in the wallet client. Add an option to read the
data from a file. The initial implementation, depending on the
underlying remctl support, may have to ban nul characters in the
uploaded data.
* Implement a simple file wallet object. Document a naming convention for
those files (group-service, perhaps).
* Revisit the way default ACL creation is handled. Add a new function to
verify an ACL given as an array without requiring that it be in the
database first and write better code for comparing two ACLs.
Future work:
* Write a conventions document for ACL naming, object naming, and similar
issues.
* Write a future design and roadmap document to collect notes about how
unimplemented features should be handled.
* Support displaying and possibly specifying dates in some format more
normal than seconds since epoch.
* Support limiting returned history information by timestamp.
* There is a lot of duplicate code in wallet-backend. Convert that to
use some sort of data-driven model with argument count and flags so
that the method calls can be written only once.
* There's a lot of code duplication in the dispatch functions in the
Wallet::Server class. Find a way to rewrite that so that the dispatch
doesn't duplicate the same code patterns.
* Refactor the test suite for the wallet backend to try to reduce the
duplicated code.
* Pull common test suite code into a Perl library that can be reused.
* Add a function to wallet-admin to purge expired entries. Possibly also
check expiration before allowing anyone to get or store objects.
* Add a comment field for objects that can be set by the owner.
* Implement an ssh keypair wallet object. The server can run ssh-keygen
to generate a public/private key pair and return both to the client,
which would split them apart. Used primarily for host keys. May need a
side table to store key types, or a naming convention.
* Implement an X.509 certificate object. I expect this would store the
public and private key as a single file in the same format that Apache
can read for combined public and private keys. There were requests for
storing the CSR, but I don't see why you'd want to do that. Start with
store support.
* Implement an X.509 CA so that you can get certificate objects without
storing them first. Need to resolve naming conventions if you want to
run multiple CAs on the same wallet server (but why?). Should this be a
different type than stored certificates?
* Add details to design-api on how to write one's own ACL verifiers and
object implementations and register them.
* Add support for enforcing a naming policy through another policy
function.
* The keytab backend currently only supports MIT Kerberos. Add support
for Heimdal.
* Add readline support to the wallet client to make it easier to issue
multiple commands.
* The wallet-backend and wallet documentation share the COMMANDS section.
Work out some means to assemble the documentation without duplicating
content.
* Add support for rekeying in the wallet client. Need to resolve how to
get a list of principals to rekey and which keytabs to work on. This
possibly should be a separate binary from the regular wallet client
binary.
* Document using the wallet system over something other than remctl.
* Provide a REST implementation of the wallet server.
* Provide a CGI implementation of the wallet server.
* Document all diagnostics for all wallet APIs.
* Write a test suite to scan all wallet code looking for diagnostics that
aren't in the documentation and warn about them.
May or may not be good ideas:
* Remove the hard-coded ADMIN ACL in the server with something more
configurable, perhaps a global ACL table or something.
* The ACL implementation is currently rather inefficient for ACL
verifiers that need to maintain state (such as LDAP binds). Now
they're created and destroyed when verifying each ACL. It may be useful
to somehow return global verifiers, probably through a factory
implementation. On the other hand, performance may not be worth it.
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