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0001-SECURITY-Add-img_deleted-column-b.patch
csteipp (Chris Steipp)
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• csteipp
May 11 2015, 10:56 PM
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0001-SECURITY-Add-img_deleted-column-b.patch
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From f96a1111902b0a345e34e40e8c5ff8f4f754fa2a Mon Sep 17 00:00:00 2001
From: csteipp <csteipp@wikimedia.org>
Date: Mon, 11 May 2015 15:11:23 -0700
Subject: [PATCH] SECURITY: Add img_deleted column
Add an img_deleted column to the image table, similar to oi_deleted
in oldimage and fa_deleted in filearchive, to handle hiding parts
of the latest image version (especially user suppression).
Includes a query to set the value to 12 (user deleted + suppressed)
if a block with a suppression (ipb_deleted) flag exists for the
uploader. Also updates oldimage / filearchive as the image -> oi/fa
transition could have caused incorrect values to be recorded there.
Bug: T90300
Change-Id: Ifb928a0592348f2d600ed4e290f9e309797c4c81
---
includes/installer/MssqlUpdater.php | 2 ++
includes/installer/MysqlUpdater.php | 1 +
includes/installer/OracleUpdater.php | 1 +
includes/installer/PostgresUpdater.php | 3 ++-
includes/installer/SqliteUpdater.php | 1 +
maintenance/archives/patch-img_deleted.sql | 37 ++++++++++++++++++++++++++++++
maintenance/mssql/tables.sql | 3 +++
maintenance/oracle/tables.sql | 3 ++-
maintenance/postgres/tables.sql | 3 ++-
maintenance/tables.sql | 5 +++-
10 files changed, 55 insertions(+), 4 deletions(-)
create mode 100644 maintenance/archives/patch-img_deleted.sql
diff --git a/includes/installer/MssqlUpdater.php b/includes/installer/MssqlUpdater.php
index 5eef335..4a280e5 100644
--- a/includes/installer/MssqlUpdater.php
+++ b/includes/installer/MssqlUpdater.php
@@ -47,6 +47,8 @@ class MssqlUpdater extends DatabaseUpdater {
array( 'dropTable', 'hitcounter' ),
array( 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ),
array( 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ),
+ array( 'addField', 'image', 'img_deleted', 'patch-img_deleted.sql' ),
+
// Constraint updates
array( 'updateConstraints', 'category_types', 'categorylinks', 'cl_type' ),
array( 'updateConstraints', 'major_mime', 'filearchive', 'fa_major_mime' ),
diff --git a/includes/installer/MysqlUpdater.php b/includes/installer/MysqlUpdater.php
index 36d2c1d..9438718 100644
--- a/includes/installer/MysqlUpdater.php
+++ b/includes/installer/MysqlUpdater.php
@@ -271,6 +271,7 @@ class MysqlUpdater extends DatabaseUpdater {
array( 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ),
array( 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ),
array( 'doUserNewTalkUseridUnsigned' ),
+ array( 'addField', 'image', 'img_deleted', 'patch-img_deleted.sql' ),
// note this patch covers other _comment and _description fields too
array( 'modifyField', 'recentchanges', 'rc_comment', 'patch-editsummary-length.sql' ),
);
diff --git a/includes/installer/OracleUpdater.php b/includes/installer/OracleUpdater.php
index 03dbd1c..327e503 100644
--- a/includes/installer/OracleUpdater.php
+++ b/includes/installer/OracleUpdater.php
@@ -107,6 +107,7 @@ class OracleUpdater extends DatabaseUpdater {
array( 'dropTable', 'hitcounter' ),
array( 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ),
array( 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ),
+ array( 'addField', 'image', 'img_deleted', 'patch-img_deleted.sql' ),
// KEEP THIS AT THE BOTTOM!!
array( 'doRebuildDuplicateFunction' ),
diff --git a/includes/installer/PostgresUpdater.php b/includes/installer/PostgresUpdater.php
index 6ac5436..6d66794 100644
--- a/includes/installer/PostgresUpdater.php
+++ b/includes/installer/PostgresUpdater.php
@@ -421,7 +421,8 @@ class PostgresUpdater extends DatabaseUpdater {
array( 'dropTable', 'hitcounter' ),
array( 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ),
array( 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ),
- array( 'dropFkey', 'recentchanges', 'rc_cur_id' )
+ array( 'dropFkey', 'recentchanges', 'rc_cur_id' ),
+ array( 'addField', 'image', 'img_deleted', 'patch-img_deleted.sql' ),
);
}
diff --git a/includes/installer/SqliteUpdater.php b/includes/installer/SqliteUpdater.php
index 2693be0..ac976ea 100644
--- a/includes/installer/SqliteUpdater.php
+++ b/includes/installer/SqliteUpdater.php
@@ -142,6 +142,7 @@ class SqliteUpdater extends DatabaseUpdater {
array( 'dropTable', 'hitcounter' ),
array( 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ),
array( 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ),
+ array( 'addField', 'image', 'img_deleted', 'patch-img_deleted.sql' ),
array( 'modifyField', 'filearchive', 'fa_deleted_reason', 'patch-editsummary-length.sql' ),
);
}
diff --git a/maintenance/archives/patch-img_deleted.sql b/maintenance/archives/patch-img_deleted.sql
new file mode 100644
index 0000000..ec41ddd
--- /dev/null
+++ b/maintenance/archives/patch-img_deleted.sql
@@ -0,0 +1,37 @@
+-- Add img_deleted - a RevisionDelete field for the current version of the file
+ALTER TABLE /*_*/image ADD img_deleted tinyint unsigned NOT NULL default 0;
+
+-- Mark image table entries as suppressed if they belong to a suppressed user.
+--
+-- This can be slow (converted to a select it ran for 10m for Commons on the
+-- research DB, even though the result set was <500) as neither ipb_deleted
+-- not img_user is indexed. Joining on the username would be much faster but
+-- would probably miss users who have been renamed.
+UPDATE /*_*/image
+SET img_deleted = 12 -- Revision::DELETED_USER + Revision::DELETED_RESTRICTED
+WHERE img_user_text IN (
+ SELECT ipb_address
+ FROM /*_*/ipblocks
+ WHERE ipb_deleted
+);
+
+-- Make sure user suppression did not get lost on oldimage and filearchive
+-- tables. Since image did not have suppression support until now, if a user
+-- uploaded an image, was suppressed, and then someone else uploaded a new
+-- version or deleted the image, the image revision was moved to oi/fa with
+-- no suppression bit set.
+UPDATE /*_*/oldimage
+SET oi_deleted = 12 | oi_deleted
+WHERE oi_user_text IN (
+ SELECT ipb_address
+ FROM /*_*/ipblocks
+ WHERE ipb_deleted
+);
+UPDATE /*_*/filearchive
+SET fa_deleted = 12 | fa_deleted
+WHERE fa_user_text IN (
+ SELECT ipb_address
+ FROM /*_*/ipblocks
+ WHERE ipb_deleted
+);
+
diff --git a/maintenance/mssql/tables.sql b/maintenance/mssql/tables.sql
index 5b09ffd..c4b49a6 100644
--- a/maintenance/mssql/tables.sql
+++ b/maintenance/mssql/tables.sql
@@ -578,6 +578,9 @@ CREATE TABLE /*_*/image (
-- SHA-1 content hash in base-36
img_sha1 nvarchar(32) NOT NULL default '',
+ -- Visibility of deleted revisions, bitfield
+ img_deleted tinyint NOT NULL default 0,
+
CONSTRAINT img_major_mime_ckc check (img_major_mime IN('unknown', 'application', 'audio', 'image', 'text', 'video', 'message', 'model', 'multipart', 'chemical')),
CONSTRAINT img_media_type_ckc check (img_media_type in('UNKNOWN', 'BITMAP', 'DRAWING', 'AUDIO', 'VIDEO', 'MULTIMEDIA', 'OFFICE', 'TEXT', 'EXECUTABLE', 'ARCHIVE'))
);
diff --git a/maintenance/oracle/tables.sql b/maintenance/oracle/tables.sql
index 12f6518..c25e826 100644
--- a/maintenance/oracle/tables.sql
+++ b/maintenance/oracle/tables.sql
@@ -300,7 +300,8 @@ CREATE TABLE &mw_prefix.image (
img_user NUMBER DEFAULT 0 NOT NULL,
img_user_text VARCHAR2(255) NOT NULL,
img_timestamp TIMESTAMP(6) WITH TIME ZONE,
- img_sha1 VARCHAR2(32)
+ img_sha1 VARCHAR2(32),
+ img_deleted NUMBER DEFAULT 0 NOT NULL
);
ALTER TABLE &mw_prefix.image ADD CONSTRAINT &mw_prefix.image_pk PRIMARY KEY (img_name);
ALTER TABLE &mw_prefix.image ADD CONSTRAINT &mw_prefix.image_fk1 FOREIGN KEY (img_user) REFERENCES &mw_prefix.mwuser(user_id) ON DELETE SET NULL DEFERRABLE INITIALLY DEFERRED;
diff --git a/maintenance/postgres/tables.sql b/maintenance/postgres/tables.sql
index 6076206..4b12a89 100644
--- a/maintenance/postgres/tables.sql
+++ b/maintenance/postgres/tables.sql
@@ -313,7 +313,8 @@ CREATE TABLE image (
img_user INTEGER NULL REFERENCES mwuser(user_id) ON DELETE SET NULL DEFERRABLE INITIALLY DEFERRED,
img_user_text TEXT NOT NULL,
img_timestamp TIMESTAMPTZ,
- img_sha1 TEXT NOT NULL DEFAULT ''
+ img_sha1 TEXT NOT NULL DEFAULT '',
+ img_deleted SMALLINT NOT NULL DEFAULT 0
);
CREATE INDEX img_size_idx ON image (img_size);
CREATE INDEX img_timestamp_idx ON image (img_timestamp);
diff --git a/maintenance/tables.sql b/maintenance/tables.sql
index de36d26..67888e6 100644
--- a/maintenance/tables.sql
+++ b/maintenance/tables.sql
@@ -856,7 +856,10 @@ CREATE TABLE /*_*/image (
img_timestamp varbinary(14) NOT NULL default '',
-- SHA-1 content hash in base-36
- img_sha1 varbinary(32) NOT NULL default ''
+ img_sha1 varbinary(32) NOT NULL default '',
+
+ -- Visibility of deleted revisions, bitfield
+ img_deleted tinyint unsigned NOT NULL default 0,
) /*$wgDBTableOptions*/;
CREATE INDEX /*i*/img_usertext_timestamp ON /*_*/image (img_user_text,img_timestamp);
--
1.8.4.5

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