Summary:
While we mostly have reasonable effective object accessibility when you lock a user out of an application, it's primarily enforced at the controller level. Users can still, e.g., load the handles of objects they can't actually see. Instead, lock the queries to the applications so that you can, e.g., never load a revision if you don't have access to Differential.
This has several parts:
- For PolicyAware queries, provide an application class name method.
- If the query specifies a class name and the user doesn't have permission to use it, fail the entire query unconditionally.
- For handles, simplify query construction and count all the PHIDs as "restricted" so we get a UI full of "restricted" instead of "unknown" handles.
Test Plan:
- Added a unit test to verify I got all the class names right.
- Browsed around, logged in/out as a normal user with public policies on and off.
- Browsed around, logged in/out as a restricted user with public policies on and off. With restrictions, saw all traces of restricted apps removed or restricted.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7367
Summary:
Ref T603. Currently, we render handles the user doesn't have permission to see in a manner identical to handles that don't exist. This is confusing, and not required by policies (which restrict content, but permit knowledge that an object exists).
Instead, render them in different styles. Bad/invalid objects look like:
Unknown Object (Task)
Restricted objects look like:
[o] Restricted Task
...where `[o]` is the padlock icon.
Test Plan:
{F71100}
{F71101}
It's possible this renders weird somewhere, but I wasn't immediately able to find any issues. Yell if you see something.
Reviewers: btrahan, chad
Reviewed By: btrahan
CC: chad, aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D7334
Summary:
Ref T603. Several issues here:
1. Currently, `FileQuery` does not actually respect object attachment edges when doing policy checks. Everything else works fine, but this was missing an `array_keys()`.
2. Once that's fixed, we hit a bunch of recursion issues. For example, when loading a User we load the profile picture, and then that loads the User, and that loads the profile picture, etc.
3. Introduce a "Query Workspace", which holds objects we know we've loaded and know we can see but haven't finished filtering and/or attaching data to. This allows subqueries to look up objects instead of querying for them.
- We can probably generalize this a bit to make a few other queries more efficient. Pholio currently has a similar (but less general) "mock cache". However, it's keyed by ID instead of PHID so it's not easy to reuse this right now.
This is a bit complex for the problem being solved, but I think it's the cleanest approach and I believe the primitive will be useful in the future.
Test Plan: Looked at pastes, macros, mocks and projects as a logged-in and logged-out user.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D7309
Summary:
Ref T603. This could probably use a little more polish, but improve the quality of policy error messages.
- Provide as much detail as possible.
- Fix all the strings for i18n.
- Explain special rules to the user.
- Allow indirect policy filters to raise policy exceptions instead of 404s.
Test Plan: See screenshots.
Reviewers: btrahan, chad
Reviewed By: chad
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D7151
Summary:
Ref T603. See inlines for an explanation. The case where I hit this was loading the "Pending Differential Revisions" panel in Diffusion when logged out, after making a repository public.
What happens is that we load 10 revisions (say, D1 .. D10) but the user can't see any of them. We then try to load the next 10, but since the pagination is ordered by date modified, we need to base the next query on the modified date of the last thing we loaded (D10). However, since we use the viewer's policies to load that cursor object, it fails to load, and then we just issue the same query over and over again, loading D1 .. D10 until we run out of execution time.
Test Plan: Interface now loads correctly.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D7059
Summary:
Ref T2625. Ref T3794. Ref T418. Ref T1703.
This is a more general version of D5278. It expands CustomField support to include real integration with ApplicationSearch.
Broadly, custom fields may elect to:
- build indicies when objects are updated;
- populate ApplicationSearch forms with new controls;
- read inputs entered into those controls out of the request; and
- apply constraints to search queries.
Some utility/helper stuff is provided to make this easier. This part could be cleaner, but seems reasonable for a first cut. In particular, the Query and SearchEngine must manually call all the hooks right now instead of everything happening magically. I think that's fine for the moment; they're pretty easy to get right.
Test Plan:
I added a new searchable "Company" field to People:
{F58229}
This also cleaned up the disable/reorder view a little bit:
{F58230}
As it did before, this field appears on the edit screen:
{F58231}
However, because it has `search`, it also appears on the search screen:
{F58232}
When queried, it returns the expected results:
{F58233}
And the actually good bit of all this is that the query can take advantage of indexes:
mysql> explain SELECT * FROM `user` user JOIN `user_customfieldstringindex` `appsearch_0` ON `appsearch_0`.objectPHID = user.phid AND `appsearch_0`.indexKey = 'mk3Ndy476ge6' AND `appsearch_0`.indexValue IN ('phacility') ORDER BY user.id DESC LIMIT 101;
+----+-------------+-------------+--------+-------------------+----------+---------+------------------------------------------+------+----------------------------------------------+
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+-------------+--------+-------------------+----------+---------+------------------------------------------+------+----------------------------------------------+
| 1 | SIMPLE | appsearch_0 | ref | key_join,key_find | key_find | 232 | const,const | 1 | Using where; Using temporary; Using filesort |
| 1 | SIMPLE | user | eq_ref | phid | phid | 194 | phabricator2_user.appsearch_0.objectPHID | 1 | |
+----+-------------+-------------+--------+-------------------+----------+---------+------------------------------------------+------+----------------------------------------------+
2 rows in set (0.00 sec)
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T418, T1703, T2625, T3794
Differential Revision: https://secure.phabricator.com/D6992
Summary:
Ref T2625. Depends on D6971. Maniphest is complicated to implement cursor paging for. Builds on D6971 to do so.
This is //almost// complete. Paging on projects and authors doesn't quite work, I'll clean that up shortly. Left some TODOs.
Test Plan: Set page size to `3`, paged forward and backward in a bunch of group/order modes. Results seemed to be as expected.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2625
Differential Revision: https://secure.phabricator.com/D6972
Summary:
We currently have two giant messes for paging across multiple columns (usually because one column is not unique), and I'm about to add a third for Maniphest.
Provide a more structured way to build these `A > a OR (A = a AND B > b)` clauses.
Test Plan: Set page size to `2` for Differential and Diffusion and paged forward and backward with a bunch of different orders set. Pages worked as expected.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2625
Differential Revision: https://secure.phabricator.com/D6971
Summary: Ref T603. Ref D6941.
Test Plan: Clicked around all over - looked good. I plan to re-test D6941 to make sure the executeOne case works now as intended
Reviewers: epriestley
Reviewed By: epriestley
CC: Korvin, aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D6944
Summary:
Ref T603. Moves to detangle and optimize how we apply policies to filtering objects. Notably:
- Add a short circuit for omnipotent users.
- When performing project filtering, do a stricter check for user membership. We don't actually care if the user can see the project or not according to other policy constraints, and checking if they can may be complicated.
- When performing project filtering, do a local check to see if we're filtering the project itself. This is a common case (a project editable by members of itself, for example) and we can skip queries when it is satisfied.
- Don't perform policy filtering in ObjectQuery. All the data it aggregates is already filtered correctly.
- Clean up a little bit of stuff in Feed.
Test Plan: Pages like the Maniphest task list and Project profile pages now issue dramatically fewer queries.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D6931
Summary: Ref T2715. `PhabricatorObjectQuery` can theoretically bypass policies on its side-channel result set. This can't actually happen in practice because all the loading mechanisms are filtered, but provide a general way to implement side channel results safely.
Test Plan: Loaded some pages; see next diff.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2715
Differential Revision: https://secure.phabricator.com/D6514
Summary:
Ref T2715. Ref T3551. Ref T603. This does a few things, but they're all sort of small:
- We commonly use a `getX()` / `attachX()` pattern, but have very similar code in the `getX()` method every time. Provide a convenience method to make this pattern easier to write.
- We use `willFilterPage()` in many queries, but it currently is called with zero or more results. This means we have a lot of "if no results, return nothing" boilerplate. Make it call only for one or more results.
- Implement `PhabricatorPolicyInterface` on `ReleephBranch`. A branch has the same policy as its project.
- Implement `ReleephBranchQuery`.
- Move the branch PHID type to application PHID infrastructure.
Test Plan: Browsed Releeph. Used `phid.query` to query branch PHIDs.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T603, T2715, T3551
Differential Revision: https://secure.phabricator.com/D6512
Summary:
Ref T603. Ref T2625. Use cursors to page Differential queries, not offsets.
The trick here is that some queries are ordered. In these cases, we either need to pass some kind of tuple or do a cursor lookup. For example, if you are viewing revisions ordered by `dateModified`, we can either have the next page be something like:
?afterDateModified=2398329373&afterID=292&order=modified
...or some magical token:
?afterToken=2398329373:292&order=modified
I think we did this in Conpherence, but one factor there was that paging orders update with some frequency. In most cases, I think it's reasonable to pass just the ID and do a lookup to get the actual clause value (e.g., go look up object ID 292 and see what its dateModified is) and I think this is much simpler in general.
Test Plan: Set page size in Differential to 3, and paged through result lists ordered by date created and date modified.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T603, T2625
Differential Revision: https://secure.phabricator.com/D6345
Summary: Fixes T2956. Ref T2399.
Test Plan: set message limit to 2 and verified "show older" showed up, and that clicking it again and again and again showed the right stuff, ultimately not showing a "show older" UI anymore.
Reviewers: epriestley, chad
Reviewed By: epriestley
CC: aran, Korvin
Maniphest Tasks: T2399, T2956
Differential Revision: https://secure.phabricator.com/D5721
Summary: It's dumb to execute a query which we know will return an empty result.
Test Plan: Looked at comment preview with "11", didn't see "1 = 0" in DarkConsole.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D5177
Summary:
This commit doesn't change license of any file. It just makes the license implicit (inherited from LICENSE file in the root directory).
We are removing the headers for these reasons:
- It wastes space in editors, less code is visible in editor upon opening a file.
- It brings noise to diff of the first change of any file every year.
- It confuses Git file copy detection when creating small files.
- We don't have an explicit license header in other files (JS, CSS, images, documentation).
- Using license header in every file is not obligatory: http://www.apache.org/dev/apply-license.html#new.
This change is approved by Alma Chao (Lead Open Source and IP Counsel at Facebook).
Test Plan: Verified that the license survived only in LICENSE file and that it didn't modify externals.
Reviewers: epriestley, davidrecordon
Reviewed By: epriestley
CC: aran, Korvin
Maniphest Tasks: T2035
Differential Revision: https://secure.phabricator.com/D3886
Summary:
Provides a simple way for policy-aware queries to pre-filter results without needing to maintain separate cursors, and fixes a bunch of filter-related edge cases.
- For reverse-paged cursor queries, we previously reversed each individual set of results. If the final result set is built out of multiple pages, it's in the wrong order overall, with each page in the correct order in sequence. Instead, reverse everything at the end. This also simplifies construction of queries.
- `AphrontCursorPagerView` would always render a "<< First" link when paging backward, even if we were on the first page of results.
- Add a filtering hook to let queries perform in-application pre-policy filtering as simply as possible (i.e., without maintaing their own cursors over the result sets).
Test Plan: Made feed randomly prefilter half the results, and paged forward and backward. Observed correct result ordering, pagination, and next/previous links.
Reviewers: btrahan, vrana
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D3787
Summary:
- Renames `PhabricatorPolicyQuery` to `PhabricatorPolicyAwareQuery` (a query which respects policy settings).
- Introduces `PhabricatorPolicyQuery`, which loads available policies (e.g., "member of project X").
- Introduces `PhabricatorPolicy`, which describes a policy.
- Allows projects to be set as policies.
- Allows Paste policies to be edited.
- Covers crazy cases where you make projects depend on themselves or each other because you are a dastardly villan.
Test Plan: Set paste and project policies, including crazy policies like A -> B -> A, A -> A, etc.
Reviewers: vrana, btrahan
Reviewed By: vrana
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D3476
Summary:
Currently, we're showing projets in reverse order (Z..A) because most cursor pagers go from high IDs to low IDs.
Allow sequence to be reversed; reverse it.
Also simplify some query/paging stuff.
Test Plan: Set page size to 1, paged back and forth.
Reviewers: vrana, btrahan
Reviewed By: vrana
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D3221
Summary:
- Allow PolicyQuery to require specific sets of capabilities other than "CAN_VIEW", like edit, etc. The default set is "view".
- Add some convenience methods to PolicyFilter to test for capabilities.
Test Plan: Viewed pastes, projects, etc. Used other stuff in future diff.
Reviewers: vrana, btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D3212
Summary: Apparently I am not qualified to do basic math.
Test Plan: Unit test.
Reviewers: vrana
Reviewed By: vrana
CC: aran
Differential Revision: https://secure.phabricator.com/D3218
Summary: I think this is simpler? Includes test cases.
Test Plan: Ran tests. Loaded /paste/.
Reviewers: vrana, nh
Reviewed By: vrana
CC: aran
Differential Revision: https://secure.phabricator.com/D3209
Summary:
A few goals here:
- Slightly simplify the Query classtree -- it's now linear: `Query` -> `OffsetPagedQuery` (adds offset/limit) -> `PolicyQuery` (adds policy filtering) -> `CursorPagedPolicyQuery` (adds cursors).
- Allow us to move from non-policy queries to policy queries without any backward compatibility breaks, e.g. Conduit methods which accept 'offset'.
- Separate the client limit ("limit") from the datafetch hint limit ("rawresultlimit") so we can make the heurstic smarter in the future if we want. Some discussion inline.
Test Plan: Expanded unit tests to cover offset behaviors.
Reviewers: vrana, btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D3192
Summary:
I'm trying to make progress on the policy/visibility stuff since it's a blocker for Wikimedia.
First, I want to improve Projects so they can serve as policy groups (e.g., an object can have a visibility policy like "Visible to: members of project 'security'"). However, doing this without breaking anything or snowballing into a bigger change is a bit awkward because Projects are name-ordered and we have a Conduit API which does offset paging. Rather than breaking or rewriting this stuff, I want to just continue offset paging them for now.
So I'm going to make PhabricatorPolicyQuery extend PhabricatorOffsetPagedQuery, but can't currently since the `executeWithPager` methods would clash. These methods do different things anyway and are probably better with different names.
This also generally improves the names of these classes, since cursors are not necessarily IDs (in the feed case, they're "chronlogicalKeys", for example). I did leave some of the interals as "ID" since calling them "Cursor"s (e.g., `setAfterCursor()`) seemed a little wrong -- it should maybe be `setAfterCursorPosition()`. These APIs have very limited use and can easily be made more consistent later.
Test Plan: Browsed around various affected tools; any issues here should throw/fail in a loud/obvious way.
Reviewers: vrana, btrahan
Reviewed By: vrana
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D3177
Summary: Simplify FeedQuery by making it extend from PhabricatorIDPagedPolicyQuery
Test Plan: Looked at feed on home, projects, user profile, and called `feed.query`.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D2905
Summary:
- `kill_init.php` said "Moving 1000 files" - I hope that this is not some limit in `FileFinder`.
- [src/infrastructure/celerity] `git mv utils.php map.php; git mv api/utils.php api.php`
- Comment `phutil_libraries` in `.arcconfig` and run `arc liberate`.
NOTE: `arc diff` timed out so I'm pushing it without review.
Test Plan:
/D1234
Browsed around, especially in `applications/repository/worker/commitchangeparser` and `applications/` in general.
Auditors: epriestley
Maniphest Tasks: T1103
Summary:
Provides a basic start for access policies. Objects expose various capabilities, like CAN_VIEW, CAN_EDIT, etc., and set a policy for each capability. We currently implement three policies, PUBLIC (anyone, including logged-out), USERS (any logged-in) and NOONE (nobody). There's also a way to provide automatic capability grants (e.g., the owner of an object can always see it, even if some capability is set to "NOONE"), but I'm not sure how great the implementation feels and it might change.
Most of the code here is providing a primitive for efficient policy-aware list queries. The problem with doing queries naively is that you have to do crazy amounts of filtering, e.g. to show the user page 6, you need to filter at least 600 objects (and likely more) before you can figure out which ones are 500-600 for them. You can't just do "LIMIT 500, 100" because that might have only 50 results, or no results. Instead, the query looks like "WHERE id > last_visible_id", and then we fetch additional pages as necessary to satisfy the request.
The general idea is that we move all data access to Query classes and have them do object filtering. The ID paging primitive allows efficient paging in most cases, and the executeOne() method provides a concise way to do policy checks for edit/view screens.
We'll probably end up with mostly broader policy UIs or configuration-based policies, but there are at least a few cases for per-object privacy (e.g., marking tasks as "Security", and restricting things to the members of projects) so I figured we'd start with a flexible primitive and the simplify it in the UI where we can.
Test Plan: Unit tests, played around in the UI with various policy settings.
Reviewers: btrahan, vrana, jungejason
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D2210
Summary:
- Still really really rough.
- Adds a full synchronous mode for debugging.
- Adds some logging.
- It can now allocate EC2 machines and put webroots on them in a hacky, terrible way.
- Adds a base query class.
Test Plan: oh hey look a test page? http://ec2-50-18-65-151.us-west-1.compute.amazonaws.com:2011/
Reviewers: btrahan
Reviewed By: btrahan
CC: aran, epriestley
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D2026
