Summary: Ref T4189. Fixes T2066. Mercurial has a //lot// of hooks so I'm not 100% sure this is all we need to install (we may need separate hooks for tags/bookmarks) but it should cover most of what we're after at least.
Test Plan:
- `bin/repository pull`'d a Mercurial repo and got a hook install.
- Pushed to a Mercurial repository over SSH and HTTP, with good/bad hooks. Saw hooks fire.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2066, T4189
Differential Revision: https://secure.phabricator.com/D7685
Summary:
Ref T4189. This adds SVN support, which was a little more messy than I though. Principally, we can not use `PHABRICATOR_USER` for Subversion, because it strips away the entire environment for "security reasons".
Instead, use `--tunnel-user` plus `svnlook author` to figure out the author.
Also fix "ssh://" clone URIs, which needs to be "svn+ssh://".
Test Plan:
- Made SVN commits through the hook.
- Made Git commits, too, to make sure I didn't break anything.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4189
Differential Revision: https://secure.phabricator.com/D7683
Summary:
Ref T4189. T4189 describes most of the intent here:
- When updating hosted repositories, sync a pre-commit hook into them instead of doing a `git fetch`.
- The hook calls into Phabricator. The acting Phabricator user is sent via PHABRICATOR_USER in the environment. The active repository is sent via CLI.
- The hook doesn't do anything useful yet; it just veifies basic parameters, does a little parsing, and exits 0 to allow the commit.
Test Plan:
- Performed Git pushes and pulls over SSH and HTTP.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4189
Differential Revision: https://secure.phabricator.com/D7682
Summary: This was broken in rP51fb1ca16d7f.
Test Plan: Imported a repository with file:/// location, it worked.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Differential Revision: https://secure.phabricator.com/D7636
Summary: Fixes T2230. This isn't a total walk in the park to configure, but should work for early adopters now.
Test Plan: Read documentation, browsed UI.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7634
Summary:
Ref T4038. This adds everything except the actual pushing part for mirrors.
This isn't the most beautiful or sophisticated UI, but I want get the authoritative repositories self-hosted and get users beta-ing hosting as soon as possible. We can do transactions, etc., later on.
Test Plan: See screenshots.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4038
Differential Revision: https://secure.phabricator.com/D7632
Summary: Fixes T4122. Ref T2230. Instead of storing credentials on each repository, store them in Passphrase. This allows easy creation/management of many repositories which share credentials.
Test Plan:
- Upgraded repositories.
- Created and edited repositories.
- Pulled HTTP and SSH repositories.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2230, T4122
Differential Revision: https://secure.phabricator.com/D7629
Summary:
Ref T2230. When fully set up, we have up to three users who all need to write into the repositories:
- The webserver needs to write for HTTP receives.
- The SSH user needs to write for SSH receives.
- The daemons need to write for "git fetch", "git clone", etc.
These three users don't need to be different, but in practice they are often not likely to all be the same user. If for no other reason, making them all the same user requires you to "git clone httpd@host.com", and installs are likely to prefer "git clone git@host.com".
Using three different users also allows better privilege separation. Particularly, the daemon user can be the //only// user with write access to the repositories. The webserver and SSH user can accomplish their writes through `sudo`, with a whitelisted set of commands. This means that even if you compromise the `ssh` user, you need to find a way to escallate from there to the daemon user in order to, e.g., write arbitrary stuff into the repository or bypass commit hooks.
This lays some of the groundwork for a highly-separated configuration where the SSH and HTTP users have the fewest privileges possible and use `sudo` to interact with repositories. Some future work which might make sense:
- Make `bin/phd` respect this (require start as the right user, or as root and drop privileges, if this configuration is set).
- Execute all `git/hg/svn` commands via sudo?
Users aren't expected to configure this yet so I haven't written any documentation.
Test Plan:
Added an SSH user ("dweller") and gave it sudo by adding this to `/etc/sudoers`:
dweller ALL=(epriestley) SETENV: NOPASSWD: /usr/bin/git-upload-pack, /usr/bin/git-receive-pack
Then I ran git pushes and pulls over SSH via "dweller@localhost". They successfully interacted with the repository on disk as the "epriestley" user.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7589
Summary:
Ref T4039. This fixes an issue where a user with the ability to create repositories could view repositories he is otherwise not permitted to see, by following these steps:
- Suppose you want to see repository "A".
- Create a repository with the same VCS, called "B".
- Edit the local path, changing "/var/repo/B" to "/var/repo/A".
- Now it points at a working copy of a repository you can't see.
- Although you won't be able to make it through discovery (the pull will fail with the wrong credentials), you can read some information out of the repository directly through the Diffusion UI, probably?
I'm not sure this was really practical to execute since there are a bunch of sanity checks along most/all of the major pathways, but lock it down since normal users shouldn't be editing it anyway. In the best case, this would make a mess.
Test Plan: {F81391}
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4039
Differential Revision: https://secure.phabricator.com/D7580
Summary:
Small step forward which improves existing stuff or lays groudwork for future stuff:
- Currently, to check for email verification, we have to single-query the email address on every page. Instead, denoramlize it into the user object.
- Migrate all the existing users.
- When the user verifies an email, mark them as `isEmailVerified` if the email is their primary email.
- Just make the checks look at the `isEmailVerified` field.
- Add a new check, `isUserActivated()`, to cover email-verified plus disabled. Currently, a non-verified-but-not-disabled user could theoretically use Conduit over SSH, if anyone deployed it. Tighten that up.
- Add an `isApproved` flag, which is always true for now. In a future diff, I want to add a default-on admin approval queue for new accounts, to prevent configuration mistakes. The way it will work is:
- When the queue is enabled, registering users are created with `isApproved = false`.
- Admins are sent an email, "[Phabricator] New User Approval (alincoln)", telling them that a new user is waiting for approval.
- They go to the web UI and approve the user.
- Manually-created accounts are auto-approved.
- The email will have instructions for disabling the queue.
I think this queue will be helpful for new installs and give them peace of mind, and when you go to disable it we have a better opportunity to warn you about exactly what that means.
Generally, I want to improve the default safety of registration, since if you just blindly coast through the path of least resistance right now your install ends up pretty open, and realistically few installs are on VPNs.
Test Plan:
- Ran migration, verified `isEmailVerified` populated correctly.
- Created a new user, checked DB for verified (not verified).
- Verified, checked DB (now verified).
- Used Conduit, People, Diffusion.
Reviewers: btrahan
Reviewed By: btrahan
CC: chad, aran
Differential Revision: https://secure.phabricator.com/D7572
Summary: We don't actually support this yet, so hide the configuration.
Test Plan: Edited branches for an hg repo.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7563
Summary:
Ref T2230. As far as I can tell, getting SVN working over HTTP is incredibly complicated. It's all DAV-based and doesn't appear to have any kind of binary we can just execute and pass requests through to. Don't support it for now.
- Disable it in the UI.
- Make sure all the error messages are reasonable.
Test Plan: Tried to HTTP an SVN repo. Tried to clone a Git repo with SVN, got a good error message.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7562
Summary:
Ref T2230. Very rarely, even though we've flushed the connection and sent all the data, we'll close the connection before Git is happy with it and it will flip out with an error like this:
fatal: The remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed
This is hard to reproduce because it depends on the order of read/write operations we can't directly control. I only saw it about 2% of the time, by just running `git pull` over and over again.
Waiting for Git to close its side of the connection seems to fix it.
Test Plan: Ran `git clone` a ton of times without seeing the error again. Ran `git push` a ton of times with new commits.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7558
Summary:
Ref T2230. The SVN protocol has a sensible protocol format with a good spec here:
http://svn.apache.org/repos/asf/subversion/trunk/subversion/libsvn_ra_svn/protocol
Particularly, compare this statement to the clown show that is the Mercurial wire protocol:
> It is possible to parse an item without knowing its type in advance.
WHAT A REASONABLE STATEMENT TO BE ABLE TO MAKE ABOUT A WIRE PROTOCOL
Although it makes substantially more sense than Mercurial, it's much heavier-weight than the Git or Mercurial protocols, since it isn't distributed.
It's also not possible to figure out if a request is a write request (or even which repository it is against) without proxying some of the protocol frames. Finally, several protocol commands embed repository URLs, and we need to reach into the protocol and translate them.
Test Plan: Ran various SVN commands over SSH (`svn log`, `svn up`, `svn commit`, etc).
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7556
Summary:
Ref T2230. This is substantially more complicated than Git, but mostly because Mercurial's protocol is a like 50 ad-hoc extensions cobbled together. Because we must decode protocol frames in order to determine if a request is read or write, 90% of this is implementing a stream parser for the protocol.
Mercurial's own parser is simpler, but relies on blocking reads. Since we don't even have methods for blocking reads right now and keeping the whole thing non-blocking is conceptually better, I made the parser nonblocking. It ends up being a lot of stuff. I made an effort to cover it reasonably well with unit tests, and to make sure we fail closed (i.e., reject requests) if there are any parts of the protocol I got wrong.
A lot of the complexity is sharable with the HTTP stuff, so it ends up being not-so-bad, just very hard to verify by inspection as clearly correct.
Test Plan:
- Ran `hg clone` over SSH.
- Ran `hg fetch` over SSH.
- Ran `hg push` over SSH, to a read-only repo (error) and a read-write repo (success).
Reviewers: btrahan, asherkin
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7553
Summary: Ref T2230. Fixes T4079. As it turns out, this is Git being weird. See comments for some detials about what's going on here.
Test Plan: Created shallow and deep Git clones.
Reviewers: hach-que, btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4079, T2230
Differential Revision: https://secure.phabricator.com/D7554
Summary:
Ref T2230. In Git, we can determine if a command is read-only or read/write from the command itself, but this isn't the case in Mercurial or SVN.
For Mercurial and SVN, we need to proxy the protocol that's coming over the wire, look at each request from the client, and then check if it's a read or a write. To support this, provide a more flexible version of `passthruIO`.
The way this will work is:
- The SSH IO channel is wrapped in a `ProtocolChannel` which can parse the the incoming stream into message objects.
- The `willWriteCallback` will look at those messages and determine if they're reads or writes.
- If they're writes, it will check for write permission.
- If we're good to go, the message object is converted back into a byte stream and handed to the underlying command.
Test Plan: Executed `git clone`, `git clone --depth 3`, `git push` (against no-write repo, got error), `git push` (against valid repo).
Reviewers: btrahan
Reviewed By: btrahan
CC: hach-que, asherkin, aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7551
Summary:
Fixes T4067. The way `DiffusionCommitQuery` works prevents it from loading SVN identifiers in some cases without additional constraints, since "12345" might be an SVN revision 12345, or it might be the first 5 characters of a Git commit hash.
Introduce `withRepository()` as a shorthand for `withDefaultRepository()` + `withRepositoryIDs()`. This tells the query to:
- Only look in the given repository; and
- use the more liberal identifier resolution rules while doing so.
The practical impact this has is that blame tooltips in SVN work again. The other queries which are fixed here were never run in SVN (which doesn't have first-class branches or tags); I've cleaned them up only for completeness.
Test Plan:
- Viewed blame in SVN, saw information again instead of empty tooltip.
- Viewed brnaches/tags in Mercurial and Git.
{F79226}
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4067
Differential Revision: https://secure.phabricator.com/D7523
Summary: Ref T2230. This is easily the worst thing I've had to write in a while. I'll leave some notes inline.
Test Plan: Ran `hg clone http://...` on a hosted repo. Ran `hg push` on the same. Changed sync'd both ways.
Reviewers: asherkin, btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7520
Summary: This is starting to get a bit sizable and it turns out Mercurial is sort of a beast, so split the VCS serve stuff into a separate controller.
Test Plan: Pushed and pulled an authenticated Git repository.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran, hach-que
Differential Revision: https://secure.phabricator.com/D7494
Summary: This is a little funky but fixes an issue with Git repos that are
non-bare needing "origin/" to resolve branches other than "master". Eventually
this should get cleaned up.
Test Plan: Reporting user verified this fixed their issue.
Auditors: btrahan
Summary:
Expands on D7488, which looks way better than the config checks. I'm leaving the config checks for now, but maybe we should just get rid of them? This advice is delivered in a far more timely way.
- Check for normal VCS binaries too.
- Link to `environment.append-paths`.
- Get rid of untranslated names (I think they're probably not too useful?)
Test Plan: See screenshots.
Reviewers: hach-que, btrahan
Reviewed By: hach-que
CC: aran
Differential Revision: https://secure.phabricator.com/D7495
Summary:
Currently if 'git-http-backend' is not on the PATH, there is no visible message to the user other than "info/refs: is this a valid git repository?" when trying to clone. This adds a setup check so that if there are any Git repositories in use, it will check for the existance of the "git-http-backend" binary in the PATH.
I believe this is shipped by default alongside the git package on most distros, but in some (such as OpenSUSE), this binary isn't on the PATH by default.
Test Plan: Removed `/usr/lib/git` from my `environment.append-paths` and saw the message appear. Added it back and the message went away.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4050
Differential Revision: https://secure.phabricator.com/D7488
Summary:
Ref T1493. Diffusion has some garbagey behavior for things we can't resolve. Common cases are:
- Looking at a branch that doesn't exist.
- Looking at a repository with no branches.
- Looking at a commit that doesn't exist.
- Looking at an empty repository.
In these cases, we generally fatal unhelpfully. I want to untangle this mess.
This doesn't help much, but does clean things up a bit. We currently have two separate query paths, "stablecommitname" and "expandshortcommit". These are pretty much doing the same thing -- taking some ref like "master" or "default" or a tag name or part of a commit name, and turning it into a full commit name. Merge them into a single "resolverefs" method.
This simplifies the code a fair bit, and gives us better error messages. They still aren't great, but they're like this now:
Ref "7498aec194ecf2d333e0e2baddd9d5cdf922d7f1" is ambiguous or does not exist.
...instead of just:
ERR-INVALID-COMMIT
Test Plan: Looked at Git, Mercurial and Subversion repositories that were empty and non-empty. Looked at branches/heads. Tried to look at invalid commits. Looked at tags. All of this still works, and some behaviors are a bit better than they used to be.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1493
Differential Revision: https://secure.phabricator.com/D7484
Summary: Fixes the junk I broke in D7484. Before that, tag content was a side effect of resolving the ref name. Now, fetch it explicitly in `diffusion.tagsquery`.
Test Plan: Looked at a tag, saw the annotation/message.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7485
Summary: Ref T1493. Consolidate these a bit; they might need some more magic once we do `--noupdate` checkouts. Mostly just trying to clean up and centralize this code a bit.
Test Plan: Viewed and `bin/repository discover`'d Mercurial repos with and without any branches.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1493
Differential Revision: https://secure.phabricator.com/D7480
Summary: Adds summary (description) and test plan icons to make these area's more unique and differentiated over general sections.
Test Plan: Test a diff, a commit, a task
Reviewers: epriestley, btrahan
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Differential Revision: https://secure.phabricator.com/D7493
Summary: This disables CSRF checking around the `$repository->writeStatusMessage` so that pushing changes over HTTP to Git repositories doesn't fail miserably.
Test Plan: Applied this fix and I could `git push` to hosted repositories again.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4052
Differential Revision: https://secure.phabricator.com/D7490
Summary: This fixes an issue where Git authentication would always fail on an install with `policy.allow-public` set to false. This is because when public access is allowed, anonymous users can query the user list. However, when public access is not allowed, you have to be authenticated before you can read any of the user objects.
Test Plan:
Prior to this fix, I get:
```
james@james-laptop:~/git/8> git clone http://phabricator.local/diffusion/TEST/
Cloning into 'TEST'...
fatal: unable to access 'http://phabricator.local/diffusion/TEST/': The requested URL returned error: 403
```
when `policy.allow-public` is false. After this fix I get:
```
james@james-laptop:~/git/8> git clone http://phabricator.local/diffusion/TEST/
Cloning into 'TEST'...
remote: Counting objects: 102, done.
remote: Compressing objects: 100% (71/71), done.
remote: Total 102 (delta 6), reused 0 (delta 0)
Receiving objects: 100% (102/102), 9.89 KiB | 0 bytes/s, done.
Resolving deltas: 100% (6/6), done.
Checking connectivity... done
```
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4049
Differential Revision: https://secure.phabricator.com/D7489
Summary:
Ref T2230. This will need some more refinement, but basically it adds a "Create" vs "Import" step before we go through the paged workflow.
- If you choose "Create", we skip the remote URI / auth stuff, and then set the "hosted" flag.
- If you choose "Import", we do what we do now.
Test Plan: Created and imported repos.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7475
Summary:
- Warn about "Read/Write" instead of disabling it, to prevent edits which mutate it after changing a hosted repository to an unhosted one.
- Warn about authenticated connections with HTTPS auth disabled, and link to the relevant setting.
- When "Autoclose" is disabled, show that "Autoclose Branches" won't have an effect.
- For hosted repositories, show the HTTP and SSH clone URIs.
- Make them easy to copy/paste.
- Link to credential management.
- Show if they're read-only.
- This could be a bit nicer-looking than it is.
Test Plan: Looked at repositories in a bunch of states and made various edits to them.
Reviewers: btrahan, chad
Reviewed By: btrahan
CC: chad, aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7471
Summary: Depends on D7642. This updates the authentication logic so that HTTP writes can be made to Git repositories hosted by Phabricator.
Test Plan: Set the policy to allow me to push and I was able to. Changed the policy to disallow push and I was no longer able to push.
Reviewers: #blessed_reviewers, hach-que
Reviewed By: hach-que
CC: Korvin, epriestley, aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7468
Summary: This allows users to set their HTTP access passwords via Diffusion interface.
Test Plan: Clicked the "Set HTTP Access Password" link, set a password and saw it appear in the DB.
Reviewers: #blessed_reviewers, hach-que, btrahan
Reviewed By: hach-que
CC: Korvin, epriestley, aran, jamesr
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7462
Summary:
Ref T2350. Fixes T2231.
- Adds log flags around discovery.
- Adds message flags for "needs update". This is basically an out-of-band hint to the daemons that a repository should be pulled sooner than normal. We set the flag when users push a revision, and expose a Conduit method that `arc land` will be able to use.
Test Plan: See screenshots.
Reviewers: btrahan, chad
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2350, T2231
Differential Revision: https://secure.phabricator.com/D7467
Summary:
`RepositoryStatusMessage` is basically a key/value table associated with a repository that I'm using to let the daemons store the most recent event of a given type, so we can easily show it on the status dashboard. I think this will be a lot easier for users to figure out than digging through logfiles.
I'm also going to write the "this needs a pull" status here eventually, for reducing the time lapse between pushes and discovery.
- Add storage for these messages.
- Have the pull engine populate the INIT phase. I'll do the FETCH phase next.
- Update the status readout to show all the various states.
Test Plan: See screenshots.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7461
Summary:
Replace the blanket "daemons not running" warning with a lot more specific detail, to try to make it easier for users to figure out how to set up repositories correctly.
The next change here will add some additional status information from the daemons, so this panel can report results in greater detail.
Test Plan: See screenshots.
Reviewers: btrahan, chad
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7458
Summary:
- Use DiffusionCommitQuery
- Get rid of the "Author" column.
- Collapse commit + revision together.
- Better tooltips to cover for the removed information.
- Colorize only the "line" column.
- Generally, reduce the amount of visual noise and non-code-stuff going on in this interface.
- I'd like to make the "<<" thing look nicer too but that might take some actual design.
Test Plan: See screenshots.
Reviewers: btrahan, chad
Reviewed By: chad
CC: chad, aran
Differential Revision: https://secure.phabricator.com/D7457
Summary: Minor cleanup. Make the "imported" check less strict (we don't need owners or herald to show change status). Export the "imported" flag over Conduit.
Test Plan: Viewed tag table. Viewed partially imported repositories.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7455
Summary: Swap to DiffusionCommitQuery, other minor cleanup.
Test Plan: Viewed page, forced error view and looked at it.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7454
Summary: The new "importStatus" property provides a much stronger and more consistent version of this flag. The only callsite was removed by D7452.
Test Plan: Used `grep` to check for callsites and found none.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7453
Summary:
Ref T2716.
- Serve from `DiffusionCommitQuery`, not `PhabricatorAuditCommitQuery` (which should probably die).
- Fix logic for `limit`, which incorrectly failed to display the "Showing %d branches." text.
- Clean up things a touch.
- I didn't end up actually needing `needCommitData()`, but left it in there since I think it will be needed soon.
- Removed a "TODO" because I don't remember what "etc etc" means.
Test Plan: Looked at branches in several repositories.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2716
Differential Revision: https://secure.phabricator.com/D7451
Summary: If you load Diffusion between a repository being pulled and discovered, you can end up with a valid commit reference that hasn't been discovered yet. Don't fatal.
Test Plan: Saw somewhat-helpful error page instead of fatal.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7448
