Summary:
Phutil is not yet loaded during preamble, so we can't use it.
This change fixes a regression introduced here, fixing PHP 8.1 support:
{96ae4ba13acbf0e2f8932e950a92af0495f034d7}
Ref T15064
Test Plan: Included test script.
Reviewers: O1 Blessed Committers, valerio.bozzolan
Reviewed By: O1 Blessed Committers, valerio.bozzolan
Subscribers: speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Maniphest Tasks: T15064
Differential Revision: https://we.phorge.it/D25114
Summary:
This is a fix for PHP 8.1 deprecation of strlen(NULL), for these Phorge components:
- scripts
- aphront
- project
The strlen() was used in Phabricator to check if a generic value was a non-empty string.
For this reason, Phorge adopts phutil_nonempty_string() that checks that.
Note: this may highlight other absurd input values that might be worth correcting
instead of just ignoring. If your phutil_nonempty_string() throws an exception, just
report it to Phorge to evaluate and fix together that specific corner case.
Closes T15223
Ref T15190
Ref T15064
Test Plan: - check with your big eyes that there are no obvious typos
Reviewers: O1 Blessed Committers, avivey
Reviewed By: O1 Blessed Committers, avivey
Subscribers: speck, tobiaswiese, Matthew, Cigaryno
Maniphest Tasks: T15223, T15190, T15064
Differential Revision: https://we.phorge.it/D25105
Summary:
Fixes T13392. If you have 17 load balancers in sequence, Phabricator will receive requests with at least 17 "X-Forwarded-For" components in the header.
We want to select the 17th-from-last element, since prior elements are not trustworthy.
This currently isn't very easy/obvious, and you have to add a kind of sketchy piece of custom code to `preamble.php` to do any "X-Forwarded-For" parsing. Make handling this correctly easier.
Test Plan:
- Ran unit tests.
- Configured my local `preamble.php` to call `preamble_trust_x_forwarded_for_header(4)`, then made `/debug/` dump the header and the final value of `REMOTE_ADDR`.
```
$ curl http://local.phacility.com/debug/
<pre>
HTTP_X_FORWARDED_FOR =
FINAL REMOTE_ADDR = 127.0.0.1
</pre>
```
```
$ curl -H 'X-Forwarded-For: 1.1.1.1, 2.2.2.2, 3.3.3.3, 4.4.4.4, 5.5.5.5, 6.6.6.6' http://local.phacility.com/debug/
<pre>
HTTP_X_FORWARDED_FOR = 1.1.1.1, 2.2.2.2, 3.3.3.3, 4.4.4.4, 5.5.5.5, 6.6.6.6
FINAL REMOTE_ADDR = 3.3.3.3
</pre>
```
```
$ curl -H 'X-Forwarded-For: 5.5.5.5, 6.6.6.6' http://local.phacility.com/debug/
<pre>
HTTP_X_FORWARDED_FOR = 5.5.5.5, 6.6.6.6
FINAL REMOTE_ADDR = 5.5.5.5
</pre>
```
Maniphest Tasks: T13392
Differential Revision: https://secure.phabricator.com/D20785
