Summary:
Ref T13244. This story publishes to the feed (and I think that's reasonable and desirable) but doesn't render as nicely as it could.
Improve the rendering.
(See T9233 for some context on why we render stories like this one in this way.)
Test Plan: {F6184490}
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13244
Differential Revision: https://secure.phabricator.com/D20097
Summary: See PHI1050. Although Diviner hasn't received a ton of new development for a while, it's: not exaclty new; and pretty useful for what we need it for.
Test Plan: Reading.
Reviewers: amckinley
Reviewed By: amckinley
Subscribers: leoluk
Differential Revision: https://secure.phabricator.com/D20086
Summary:
Ref T13244. See PHI1047. A while ago, the "Review" field changed from "yes/no" to 20 flavors of "Non-Owner Blocking Under A Full Moon". The sky didn't fall, so we'll probably do this to "Audit" eventually too.
The "owners.search" API method anticipates this and returns "none" or "audit" to describe package audit statuses, so it can begin returning "audit-non-owner-reviewers" or whatever in the future.
However, the "owners.edit" API method doesn't work the same way, and takes strings, and the strings have to be numbers. This is goofy and confusing and generally bad.
Make "owners.edit" take the same strings that "owners.search" emits. For now, continue accepting the old values of "0" and "1".
Test Plan:
- Edited audit status of packages via API using "none", "audit", "0", "1" (worked), and invalid values like "quack" (helpful error).
- Edited audit status of packages via web UI.
- Used `owners.search` to retrieve package information.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13244
Differential Revision: https://secure.phabricator.com/D20091
Summary:
Ref T13244. See D20080. Rather than randomly jittering service calls, we can give each host a "metronome" that ticks every 60 seconds to get load to spread out after one cycle.
For example, web001 ticks (and makes a service call) when the second hand points at 0:17, web002 at 0:43, web003 at 0:04, etc.
For now I'm just planning to seed the metronomes randomly based on hostname, but we could conceivably give each host an assigned offset some day if we want perfectly smooth service call rates.
Test Plan: Ran unit tests.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13244
Differential Revision: https://secure.phabricator.com/D20087
Summary: The textarea is, in fact, above the description!
Test Plan: Description text changed.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D20092
Summary: This seems generally reasonable, but is also a narrow fix to "Phacility scripts try to move instances into 'up', but the daemons can't MFA".
Test Plan: Launched a new instance locally, no more "daemons can't MFA" error.
Reviewers: amckinley
Reviewed By: amckinley
Differential Revision: https://secure.phabricator.com/D20081
Summary: Ref T13242. Currently, the transaction query loads handles by default (this is unusual). We don't need them, so turn them off.
Test Plan: No apparent behavioral change, will compare production profiles.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13242
Differential Revision: https://secure.phabricator.com/D20068
Summary:
See PHI1015. If you add new repository nodes to a cluster, we may not actually sync some repositories for up to 6 hours (if they've had no commits for 30 days).
Add an explicit check for out-of-sync repositories to trigger background sync.
Test Plan:
- Ran `bin/phd debug pullocal`.
- Fiddled with the `repository_workingcopy` version table to put the local node in and out of sync with the cluster.
- Saw appropriate responses in the daemon (sync; wait if the last sync trigger was too recent).
Reviewers: amckinley
Reviewed By: amckinley
Differential Revision: https://secure.phabricator.com/D20078
Summary:
Fixes T13192. See PHI1015. When you deactivate a repository, we currently stop serving it.
This creates a problem for intracluster sync, since new nodes can't sync it. If nothing else, this means that if you "ship of theseus" your cluster and turn nodes over one at a time, you will eventually lose the entire repository. Since that's clearly a bad outcome, support sync.
Test Plan:
Testing this requires a "real" cluster, so I mostly used `secure`.
I deactivated rGITTEST and ran this on `secure002`:
```
./bin/repository thaw --demote secure002.phacility.net --force GITTEST && ./bin/repository update GITTEST
```
Before the patch, this failed:
```
[2019-01-31 19:40:37] EXCEPTION: (CommandException) Command failed with error #128!
COMMAND
git fetch --prune -- 'ssh://172.30.0.64:22/diffusion/GITTEST/' '+refs/*:refs/*'
STDOUT
(empty)
STDERR
Warning: Permanently added '172.30.0.64' (RSA) to the list of known hosts.
phabricator-ssh-exec: This repository ("rGITTEST") is not available over SSH.
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
```
After applying (a similar patch to) this patch to `secure001`, the sync worked.
I'll repeat this test with the actual patch once this deploys to `secure`.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13192
Differential Revision: https://secure.phabricator.com/D20077
Summary:
On instances, the "SiteSource" (for site config) pretty much copy-pastes the "read POST data" block because it needs to make some decisions based on POST data when handling inbound mail webhooks.
Move the upstream read a little earlier so we can get rid of this. Now that this step is separated and must happen before the profiler, there's no reason not to do it earlier.
Test Plan: POSTed some data across pages without issue, will remove duplicate code in upcoming change.
Reviewers: amckinley
Reviewed By: amckinley
Differential Revision: https://secure.phabricator.com/D20073
Summary: See PHI1048. We have similar transactions elsewhere already (particularly, on tasks) and these edges don't have any special properties (like "Closes Txx As Wontfix" edges do) so this doesn't create any sort of peril.
Test Plan: {F6170556}
Reviewers: amckinley
Reviewed By: amckinley
Differential Revision: https://secure.phabricator.com/D20075
Summary:
Ref T12921. I'm moving Instances to modular transactions, and we have an "Alert" transaction type used to send notifications ("Your instance is going to be suspended for nonpayment.").
Currently, there's no way to specifically customize mail rendering under modular transactions. Add crude support for it.
Note that (per comment) this is fairly aspirational right now, since we actually always render everything as text (see T12921). But this API should (?) mostly survive intact when I fix this properly, and allows Instances to move to modular transactions so I can fix some more pressing issues in the meantime.
Test Plan: See next diff for Instances.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T12921
Differential Revision: https://secure.phabricator.com/D20057
Summary: Depends on D20069. Ref T13232. This is a very, very weak dependency and we can reasonably polyfill it.
Test Plan: Grepped for `iconv` in libphutil, arcanist, and Phabricator.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13232
Differential Revision: https://secure.phabricator.com/D20070
Summary:
Depends on D20041. See PHI1046. If you do this:
- Create a parent project called "Crab" in Space 1.
- Create a milestone called "Left Claw".
- Shift "Crab" to Space 2.
- Create a milestone called "Right Claw".
...you currently end up with "Left Claw" in the wrong `spacePHID` in the database. At the application level it's in the correct space, but when we `WHERE ... AND spacePHID IN (...)` we can incorrectly filter it out.
Test Plan:
- Did the above setup.
- Saved "Crab", saw the space fix itself.
- Put things back in the broken state.
- Ran the migration script, saw things fix themselves again.
Reviewers: amckinley
Reviewed By: amckinley
Subscribers: aeiser, PHID-OPKG-gm6ozazyms6q6i22gyam
Differential Revision: https://secure.phabricator.com/D20063
Summary: This query didn't get updated and could let you through an explicit "Sign with MFA" action if you have only disabled factors on your account.
Test Plan:
- Disabled all factors.
- Used explicit "Sign With MFA".
- Before: Went through.
- After: Sensible error.
Reviewers: amckinley
Reviewed By: amckinley
Differential Revision: https://secure.phabricator.com/D20072
Summary:
See PHI1044. When you push a commit, we try to detect if the diff is the same as the last diff in Differential. This is a soft/heuristic check and only used to provide a hint in email ("CHANGED SINCE LAST DIFF").
For some changes, we can end up on this pathway with a binary changeset for a deleted file in the commit, and try to fetch the file data. This will fail since the file has been deleted. I'm not //entirely// sure why this hasn't cropped up before and didn't try to truly build an end-to-end test case, but it's a valid state that we shouldn't fatal in.
When we get here in this state, just detect a change. This is safe, even if it isn't always correct.
(This will be revisited in the future so I'm favoring fixing the broken behavior for now.)
Test Plan: This required some rigging, but I modified `bin/differential extract` to run the `isDiffChangedBeforeCommit()` code, then rigged a commit/diff to hit this case and reproduced the reported error. After the change, the comparison worked cleanly.
Reviewers: amckinley
Reviewed By: amckinley
Differential Revision: https://secure.phabricator.com/D20056
Summary: Now that we have a nice function for this, use it to simplify some code.
Test Plan: Ran through the Duo enroll workflow to make sure signing still works.
Reviewers: amckinley
Reviewed By: amckinley
Differential Revision: https://secure.phabricator.com/D20053
Summary:
Ref T4369. Ref T12297. Ref T13242. Ref PHI1010. I want to take a quick look at `transaction.search` and see if there's anything quick and obvious we can do to improve performance.
On `secure`, the `__profile__` flag does not survive POST like it's supposed to: when you profile a page and then submit a form on the page, the result is supposed to be profiled. The intent is to make it easier to profile Conduit calls.
I believe this is because we're hooking the profiler, then rebuilding POST data a little later -- so `$_POST['__profile__']` isn't set yet when the profiler checks.
Move the POST rebuild a little earlier to fix this.
Also, remove the very ancient "aphront.default-application-configuration-class". I believe this was only used by Facebook to do CIDR checks against corpnet or something like that. It is poorly named and long-obsolete now, and `AphrontSite` does everything we might reasonably have wanted it to do.
Test Plan: Poked around locally without any issues. Will check if this fixes the issue on `secure`.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13242, T12297, T4369
Differential Revision: https://secure.phabricator.com/D20046
Summary: Depends on D20039. Ref T13242. If installs want users to install a specific application, reference particular help, etc., let them customize the MFA enrollment message so they can make it say "if you have issues, see this walkthrough on the corporate wiki" or whatever.
Test Plan:
{F6164340}
{F6164341}
{F6164342}
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13242
Differential Revision: https://secure.phabricator.com/D20043
Summary:
Depends on D20044. Ref T13242. Similar to D20044, add reminder text to edit forms.
It would be nice to "workflow" these so the MFA flow happens inline, but Maniphest's inline edit behavior currently conflicts with this. Set it aside for now since the next workboards iteration (triggers) is probably a good opportunity to revisit it.
Test Plan: {F6164496}
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13242
Differential Revision: https://secure.phabricator.com/D20045
Summary:
Ref T13242. Warn user that they'll need to MFA (so they can go dig their phone out of their bag first or whatever, or don't type a giant comment on mobile if their U2F key is back at the office) on the comment form.
Also, when they'll need MFA and won't be able to provide it (no MFA on account), stop them from typing up a big comment that they can't actually submit: point them at MFA setup first.
Test Plan:
{F6164448}
{F6164449}
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13242
Differential Revision: https://secure.phabricator.com/D20044
Summary:
Depends on D20040. Ref T13242. See PHI1039. See PHI873. Two reasonable cases have arisen recently where extending validation rules would help solve problems.
We can do this in a pretty straightforward way with a standard extension pattern.
Test Plan:
Used this extension to keep ducks away from projects:
```lang=php
<?php
final class NoDucksEditorExtension
extends PhabricatorEditorExtension {
const EXTENSIONKEY = 'no.ducks';
public function getExtensionName() {
return pht('No Ducks!');
}
public function supportsObject(
PhabricatorApplicationTransactionEditor $editor,
PhabricatorApplicationTransactionInterface $object) {
return ($object instanceof PhabricatorProject);
}
public function validateTransactions($object, array $xactions) {
$errors = array();
$name_type = PhabricatorProjectNameTransaction::TRANSACTIONTYPE;
$old_value = $object->getName();
foreach ($xactions as $xaction) {
if ($xaction->getTransactionType() !== $name_type) {
continue;
}
$new_value = $xaction->getNewValue();
if ($old_value === $new_value) {
continue;
}
if (preg_match('/duck/i', $new_value)) {
$errors[] = $this->newInvalidTransactionError(
$xaction,
pht('Project names must not contain the substring "duck".'));
}
}
return $errors;
}
}
```
{F6162585}
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13242
Differential Revision: https://secure.phabricator.com/D20041
Summary:
Ref T13242. See PHI1039. Maniphest subtypes generally seem to be working well. I designed them as a general capability that might be extended to other `EditEngine` objects later, and PHI1039 describes a situation where extending subtypes to projects would give us some reasonable tools.
(Some installs also already use icons/colors as a sort of lightweight version of subtypes, so I believe this is generally useful capability.)
Some of this is a little bit copy-pasted and could probably be shared, but I'd like to wait a bit longer before merging it. For example, both configs have exactly the same structure right now, but Projects should possibly have some different flags (for example: to disable creating subprojects / milestones).
This implementation is pretty basic for now: notably, subprojects/milestones don't get the nice "choose from among subtype forms" treatment that tasks do. If this ends up being part of a solution to PHI1039, I'd plan to fill that in later on.
Test Plan: Defined multiple subtypes, created subtype forms, created projects with appropriate subtypes. Filtered them by subtype. Saw subtype information on list/detail views.
Reviewers: amckinley
Reviewed By: amckinley
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13242
Differential Revision: https://secure.phabricator.com/D20040
Summary: Depends on D20057. Currently, we show an "MFA" message on one of these and an "Error" message on the other, with different icons and colors. Use "MFA" for both, with the MFA icon / color.
Test Plan: Hit both varations, saw more consistency.
Reviewers: amckinley
Reviewed By: amckinley
Differential Revision: https://secure.phabricator.com/D20059
Summary:
Ref T13242. See <https://discourse.phabricator-community.org/t/out-of-range-value-for-column-deviceversion/2218>.
The synchronization log column is `uint32?` and `-1` doesn't go into that column.
Since we're only using `-1` for convenience to cheat through `$max_version > $this_version` checks, use `null` instead and make the checks more explicit.
Test Plan: Reproducing this is a bit tricky and I cheated fairly heavily to force the code down this pathway without actually building a multi-device cluster, but I did reproduce the original exception, apply the patch, and observe that it fixed things.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13242
Differential Revision: https://secure.phabricator.com/D20047
Summary: Depends on D20038. Ref T13231. Although I planned to keep this out of the upstream (see T13229) it ended up having enough pieces that I imagine it may need more fixes/updates than we can reasonably manage by copy/pasting stuff around. Until T5055, we don't really have good tools for managing this. Make my life easier by just upstreaming this.
Test Plan: See T13231 for a bunch of workflow discussion.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13231
Differential Revision: https://secure.phabricator.com/D20039
Summary: Depends on D20037. Ref T13222. Ref T7667. Although administrators can now disable MFA from the web UI, at least require that they survive MFA gates to do so. T7667 (`bin/auth lock`) should provide a sturdier approach here in the long term.
Test Plan: Created and edited MFA providers, was prompted for MFA.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13222, T7667
Differential Revision: https://secure.phabricator.com/D20038
Summary: Depends on D20036. Ref T13222. Now that we support one-shot MFA, swap this from session MFA to one-shot MFA.
Test Plan: Revealed a credential, was no longer left in high-security mode.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13222
Differential Revision: https://secure.phabricator.com/D20037
Summary:
Depends on D20035. Ref T13222.
- Allow individual transactions to request one-shot MFA if available.
- Make "change username" request MFA.
Test Plan:
- Renamed a user, got prompted for MFA, provided it.
- Saw that I no longer remain in high-security after performing the edit.
- Grepped for other uses of `PhabricatorUserUsernameTransaction`, found none.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13222
Differential Revision: https://secure.phabricator.com/D20036
Summary: Depends on D20034. Ref T13222. This is just cleanup -- I thought we'd have like two of these, but we ended up having a whole lot in Duo and a decent number in SMS. Just let factors return a result explicitly if they can make a decision early. I think using `instanceof` for control flow is a lesser evil than using `catch`, on the balance.
Test Plan: `grep`, went through enroll/gate flows on SMS and Duo.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13222
Differential Revision: https://secure.phabricator.com/D20035
Summary:
Depends on D20033. Ref T13222. Flesh this UI out a bit, and provide bit-strength information for TOTP.
Also, stop users from adding multiple SMS factors since this is pointless (they all always text your primary contact number).
Test Plan:
{F6156245}
{F6156246}
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13222
Differential Revision: https://secure.phabricator.com/D20034
Summary: Ref T13222. Providers can now be deprecated (existing factors still work, but users can't add new factors for the provider) or disabled (factors stop working, also can't add new ones).
Test Plan:
- Enabled, deprecated, and disabled some providers.
- Viewed provider detail, provider list.
- Viewed MFA settings list.
- Verified that I'm prompted for enabled + deprecated only at gates.
- Tried to disable final provider, got an error.
- Hit the MFA setup gate by enabling "Require MFA" with no providers, got a more useful message.
- Immediately forced a user to the "MFA Setup Gate" by disabling their only active provider with another provider enabled ("We no longer support TOTP, you HAVE to finish Duo enrollment to continue starting Monday.").
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13222
Differential Revision: https://secure.phabricator.com/D20031
Summary:
See T13240. Ref T13242. When we're issuing a query that will raise policy exceptions (i.e., give the user a "You Shall Not Pass" dialog if they can not see objects it loads), don't do space filtering in MySQL: when objects are filtered out in MySQL, we can't distinguish between "bad/invalid ID/object" and "policy filter", so we can't raise a policy exception.
This leads to cases where viewing an object shows "You Shall Not Pass" if you can't see it for any non-Spaces reason, but "404" if the reason is Spaces.
There's no product reason for this, it's just that `spacePHID IN (...)` is important for non-policy-raising queries (like a list of tasks) to reduce how much application filtering we need to do.
Test Plan:
Before:
```
$ git pull
phabricator-ssh-exec: No repository "spellbook" exists!
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
```
After:
```
$ git pull
phabricator-ssh-exec: [You Shall Not Pass: Unknown Object (Repository)] This object is in a space you do not have permission to access.
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
```
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13242
Differential Revision: https://secure.phabricator.com/D20042
Summary:
Depends on D20026. Ref T13222. Ref T13231. The primary change here is that we'll no longer send you an SMS if you hit an MFA gate without CSRF tokens.
Then there's a lot of support for genralizing into Duo (and other push factors, potentially), I'll annotate things inline.
Test Plan: Implemented Duo, elsewhere.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13231, T13222
Differential Revision: https://secure.phabricator.com/D20028
Summary: Depends on D20025. Ref T13231. Although I'm not currently planning to actually upstream a Duo MFA provider, it's probably easiest to put most of the support pieces in the upstream until T5055.
Test Plan: Used a test script to make some (mostly trivial) API calls and got valid results back, so I think the parameter signing is correct.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13231
Differential Revision: https://secure.phabricator.com/D20026
Summary: See PHI1038. I missed these when pulling the code out.
Test Plan: Sent "Must encrypt" mail, verified it made it through the queue in one piece.
Reviewers: amckinley
Reviewed By: amckinley
Differential Revision: https://secure.phabricator.com/D20029
Summary:
Ref T920. Ref T13235. This adds a `Future`, similar to `TwilioFuture`, for interacting with Amazon's SNS service.
Also updates the documentation.
Also makes the code consistent with the documentation by accepting a `media` argument.
Test Plan: Clicked the "send test message" button from the Settings UI.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Maniphest Tasks: T13235, T920
Differential Revision: https://secure.phabricator.com/D19982
Summary: Depends on D20024. See D20022. Put something in place temporarily until we build out validation at some point.
Test Plan: Sent myself a test message.
Reviewers: amckinley
Reviewed By: amckinley
Differential Revision: https://secure.phabricator.com/D20025
Summary:
Depends on D20023. Ref T13222. Although I think this isn't strictly necessary from a pure security perspective (since you can't modify the primary number while you have MFA SMS), it seems like a generally good idea.
This adds a slightly new MFA mode, where we want MFA if it's available but don't strictly require it.
Test Plan: Disabled, enabled, primaried, unprimaried, and edited contact numbers. With MFA enabled, got prompted for MFA. With no MFA, no prompts.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13222
Differential Revision: https://secure.phabricator.com/D20024
Summary:
Depends on D20022. Ref T13222. Since you can easily lock yourself out of your account by swapping to a bad number, prevent contact number edits while "contact number" MFA (today, always SMS) is enabled.
(Another approach would be to bind factors to specific contact numbers, and then prevent that number from being edited or disabled while SMS MFA was attached to it. However, I think that's a bit more complicated and a little more unwieldy, and ends up in about the same place as this. I'd consider it more strongly in the future if we had like 20 users say "I have 9 phones" but I doubt this is a real use case.)
Test Plan:
- With SMS MFA, tried to edit my primary contact number, disable it, and promote another number to become primary. Got a sensible error message in all cases.
- After removing SMS MFA, did all that stuff with no issues.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13222
Differential Revision: https://secure.phabricator.com/D20023
Summary:
Depends on D20021. Ref T13222. This has a few rough edges, including:
- The challenges theselves are CSRF-able.
- You can go disable/edit your contact number after setting up SMS MFA and lock yourself out of your account.
- SMS doesn't require MFA so an attacker can just swap your number to their number.
...but mostly works.
Test Plan:
- Added SMS MFA to my account.
- Typed in the number I was texted.
- Typed in some other different numbers (didn't work).
- Cancelled/resumed the workflow, used SMS in conjunction with other factors, tried old codes, etc.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13222
Differential Revision: https://secure.phabricator.com/D20022
Summary:
Depends on D20020. Ref T13222. This puts another step in the MFA enrollment flow: pick a provider; read text and click "Continue"; actually enroll.
This is primarily to stop CSRF attacks, since otherwise an attacker can put `<img src="phabricator.com/auth/settings/enroll/?providerPHID=xyz" />` on `cute-cat-pix.com` and get you to send yourself some SMS enrollment text messages, which would be mildly annoying.
We could skip this step if we already have a valid CSRF token (and we often will), but I think there's some value in doing it anyway. In particular:
- For SMS/Duo, it seems nice to have an explicit "we're about to hit your phone" button.
- We could let installs customize this text and give users a smoother onboard.
- It allows the relatively wordy enroll form to be a little less wordy.
- For tokens which can expire (SMS, Duo) it might save you from answering too slowly if you have to go dig your phone out of your bag downstairs or something.
Test Plan: Added factors, read text. Tried to CSRF the endpoint, got a dialog instead of a live challenge generation.
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13222
Differential Revision: https://secure.phabricator.com/D20021
