tokenserver: Implement MintOAuthTokenGrant RPC.

tokenserver: Implement MintOAuthTokenGrant RPC.

Most of it anyway. Lacks logging to BigQuery.

R=smut@google.com
BUG=731843
Review-Url: https://codereview.chromium.org/2991413002
Committed: https://github.com/luci/luci-go/commit/ddc861e154feb36e78c0b7b0784cacfab6414f70

[Vadim Sh., 2017-08-04 06:37:38]

PTAL

I'm just parroting rpc_mint_delegation_token.go implementation. I extracted
reusable code (policy.Policy stuff, tokensigning.Signer,
revocation.GenerateTokenID) few months ago in preparation for this.

https://codereview.chromium.org/2991413002/diff/1/tokenserver/appengine/impl/...
File tokenserver/appengine/impl/serviceaccounts/grant.go (right):

https://codereview.chromium.org/2991413002/diff/1/tokenserver/appengine/impl/...
tokenserver/appengine/impl/serviceaccounts/grant.go:38: func SignGrant(c
context.Context, signer signing.Signer, tok *tokenserver.OAuthTokenGrantBody)
(string, error) {
similar to
https://github.com/luci/luci-go/blob/master/tokenserver/appengine/impl/delega...

https://codereview.chromium.org/2991413002/diff/1/tokenserver/appengine/impl/...
File tokenserver/appengine/impl/serviceaccounts/rpc_mint_oauth_token_grant.go
(right):

https://codereview.chromium.org/2991413002/diff/1/tokenserver/appengine/impl/...
tokenserver/appengine/impl/serviceaccounts/rpc_mint_oauth_token_grant.go:53:
func (r *MintOAuthTokenGrantRPC) MintOAuthTokenGrant(c context.Context, req
*minter.MintOAuthTokenGrantRequest) (*minter.MintOAuthTokenGrantResponse, error)
{
similar to
https://github.com/luci/luci-go/blob/master/tokenserver/appengine/impl/delega...

[smut, 2017-08-04 23:18:13]

lgtm

[Vadim Sh., 2017-08-04 23:52:04]

The CQ bit was checked by vadimsh@chromium.org

[commit-bot: I haz the power, 2017-08-04 23:52:15]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-08-04 23:56:46]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1501890724644250, "parent_rev":
"4fa5261ebba20e82a97ae573c6dcfb4c32541a8b", "commit_rev":
"ddc861e154feb36e78c0b7b0784cacfab6414f70"}

[commit-bot: I haz the power, 2017-08-04 23:56:49]

Description was changed from

==========
tokenserver: Implement MintOAuthTokenGrant RPC.

Most of it anyway. Lacks logging to BigQuery.

R=smut@google.com
BUG=731843
==========

to

==========
tokenserver: Implement MintOAuthTokenGrant RPC.

Most of it anyway. Lacks logging to BigQuery.

R=smut@google.com
BUG=731843

Review-Url: https://codereview.chromium.org/2991413002
Committed:
https://github.com/luci/luci-go/commit/ddc861e154feb36e78c0b7b0784cacfab6414f70
==========

[commit-bot: I haz the power, 2017-08-04 23:56:51]

Committed patchset #1 (id:1) as
https://github.com/luci/luci-go/commit/ddc861e154feb36e78c0b7b0784cacfab6414f70