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Tim Starling edea1bc177 block: Fix DBS::acquireTarget() race using GET_LOCK()
A crude solution for the acquireTarget() race condition. Use SQL
GET_LOCK() to lock the target from the acquireTarget() call until the
transaction is committed.

Add FOR UPDATE to the acquireTarget() SELECT, otherwise it just sees the
snapshot version of the row and inserts a new row anyway.

Add a test which reliably failed prior to the change.

Reword the ipb-block-not-found message. This is normal for simultaneous
blocks of the same target. Don't contact us. In the API, remap it to
"alreadyblocked".

Bug: T389028
Change-Id: I1fa35bf08d456a93930194786f77df389217ba61
(cherry picked from commit 2b65587e4d92e7f27661e8821b14f74ade939cfa)
2025-04-07 11:43:34 +00:00
.phan Introduce minimal OTEL tracing library 2024-10-09 15:55:31 +02:00
cache In .htaccess deny files, use "Satisfy All" 2025-04-04 13:17:15 +00:00
docs DnsBlacklistUrls: Remove sorbs.net 2025-01-06 22:57:01 +00:00
extensions Update git submodules 2025-04-01 06:22:00 +00:00
images Set "X-Content-Type-Options: nosniff" header in images/.htaccess 2023-02-24 23:59:22 -05:00
includes block: Fix DBS::acquireTarget() race using GET_LOCK() 2025-04-07 11:43:34 +00:00
languages block: Fix DBS::acquireTarget() race using GET_LOCK() 2025-04-07 11:43:34 +00:00
maintenance In .htaccess deny files, use "Satisfy All" 2025-04-04 13:17:15 +00:00
mw-config installer: Fix class name in example override 2025-01-25 15:07:10 +00:00
resources Commit swagger-ui's NOTICE 2025-01-15 16:09:22 +00:00
skins Update git submodules 2025-04-01 06:23:10 +00:00
tests block: Fix DBS::acquireTarget() race using GET_LOCK() 2025-04-07 11:43:34 +00:00
vendor@8964505595 Update git submodules 2025-03-26 21:44:08 +00:00
.dockerignore
.editorconfig Fix .editorconfig for tests/parser/ directory 2024-02-27 17:35:16 +01:00
.eslintignore REST: validate JSON in tests 2024-09-20 15:42:32 +00:00
.eslintrc.json
.fresnel.yml
.git-blame-ignore-revs Add .git-blame-ignore-revs 2024-06-02 23:03:04 +02:00
.gitattributes .gitattributes: Ship docker-compose.yml to the tarball 2022-11-30 09:37:13 -05:00
.gitignore Branch commit for REL1_43 2024-10-22 12:47:33 -04:00
.gitmessage git: Introduce .gitmessage 2023-05-21 14:20:31 +03:00
.gitmodules Branch commit for REL1_43 2024-10-22 12:47:33 -04:00
.gitreview
.mailmap build: De-duplicate two recent CREDITS additions via mailmap 2024-09-11 10:02:02 -07:00
.phpcs.xml build: Use inline ignore for MediaWiki.Usage.DeprecatedGlobalVariables 2024-09-26 18:15:32 +00:00
.stylelintrc.json Login page: Use Codex CSS components 2023-07-06 17:20:17 -07:00
.svgo.config.js build: Update SVGO to v3.0.2 2023-06-15 12:24:22 -07:00
.vsls.json build: Upgrade eslint-config-wikimedia from 0.22.1 to 0.24.0 2023-02-07 10:17:30 -05:00
api.php Namespace includes/context 2024-02-08 11:07:01 -05:00
autoload.php Remove CryptHKDF and MWCryptHKDF 2024-11-10 22:49:37 -05:00
CODE_OF_CONDUCT.md
composer.json ResourceLoader: update wikimedia/minify to 2.9.0 2025-03-26 21:44:50 +00:00
composer.local.json-sample
COPYING
CREDITS build: De-duplicate two recent CREDITS additions via mailmap 2024-09-11 10:02:02 -07:00
DEVELOPERS.md Codex: Allow a local development version to be used 2024-08-22 17:20:24 -07:00
docker-compose.yml dev(docker): Bump mediawiki-web container to dev/bookworm-apache2:1.0.1 2025-01-07 17:02:36 +00:00
FAQ
Gruntfile.js Merge "codex: Provide i18n function and messages" 2024-07-03 07:06:47 +00:00
HISTORY HISTORY: Add point releases 2024-10-01 02:21:50 +01:00
img_auth.php filerepo: extract AuthenticatedFileEntryPoint from img_auth.php 2024-05-16 13:22:00 +02:00
index.php Namespace includes/context 2024-02-08 11:07:01 -05:00
INSTALL Move ext-openssl from suggest to require 2024-05-05 09:42:06 +00:00
jsdoc.json Update jsdoc-wmf-theme from 1.0.1 to 1.1.0 2024-06-27 19:29:24 +00:00
load.php ResourceLoader: Follow-up creation of ResourceLoaderEntryPoint 2024-02-22 22:30:39 +00:00
opensearch_desc.php Replace direct use of $wgRestPath with wfScript() 2024-07-01 22:01:32 +00:00
package-lock.json build: Updating npm dependencies 2025-01-06 08:38:45 -05:00
package.json Merge "Update Codex from v1.13.1 to v1.14.0" 2024-10-16 17:26:41 +00:00
phpunit.xml.dist phpunit: Determine what extensions to load in unit tests via config 2023-09-25 23:03:48 +00:00
README.md docs: Link to "Local development quickstart" in README 2024-01-22 13:58:11 +00:00
RELEASE-NOTES-1.43 RELEASE-NOTES-1.43: Update 2025-03-24 14:41:04 +00:00
rest.php Use namespaced classes (1) 2024-06-16 20:18:23 +02:00
SECURITY
thumb.php Use namespaced classes (1) 2024-06-16 20:18:23 +02:00
thumb_handler.php Use namespaced classes (1) 2024-06-16 20:18:23 +02:00
UPGRADE UPGRADE: Update mailing list archive link 2024-04-14 21:36:52 +03:00

MediaWiki

MediaWiki is a free and open-source wiki software package written in PHP. It serves as the platform for Wikipedia and the other Wikimedia projects, used by hundreds of millions of people each month. MediaWiki is localised in over 350 languages and its reliability and robust feature set have earned it a large and vibrant community of third-party users and developers.

MediaWiki is:

  • feature-rich and extensible, both on-wiki and with hundreds of extensions;
  • scalable and suitable for both small and large sites;
  • simple to install, working on most hardware/software combinations; and
  • available in your language.

For system requirements, installation, and upgrade details, see the files RELEASE-NOTES, INSTALL, and UPGRADE.

MediaWiki is the result of global collaboration and cooperation. The CREDITS file lists technical contributors to the project. The COPYING file explains MediaWiki's copyright and license (GNU General Public License, version 2 or later). Many thanks to the Wikimedia community for testing and suggestions.