From b1150db2e7b9fd1e885b9fb1836f95d93aac3d8a Mon Sep 17 00:00:00 2001
From: Samir Jha <samirjha1525@gmail.com>
Date: Tue, 6 Aug 2024 13:01:43 -0400
Subject: [PATCH] Fixes #37717 - Update evr extension ownership to foreman

---
 hooks/boot/01-kafo-hook-extensions.rb         | 15 +++++++++-
 .../pre/35-change-evr-extension-ownership.rb  | 28 +++++++++++++++++++
 2 files changed, 42 insertions(+), 1 deletion(-)
 create mode 100644 hooks/pre/35-change-evr-extension-ownership.rb

diff --git a/hooks/boot/01-kafo-hook-extensions.rb b/hooks/boot/01-kafo-hook-extensions.rb
index 21c596fe..8385b15f 100644
--- a/hooks/boot/01-kafo-hook-extensions.rb
+++ b/hooks/boot/01-kafo-hook-extensions.rb
@@ -1,5 +1,6 @@
 require 'English'
 require 'open3'
+require 'shellwords'
 
 module HookContextExtension
   # FIXME: remove when #23332 is released
@@ -85,6 +86,12 @@ def pulpcore_enabled?
     module_enabled?('foreman_proxy_content')
   end
 
+  def local_db_exists?(database)
+    db_existence_command = pg_sql_statement("SELECT 1 FROM pg_database WHERE datname = '#{database}';")
+    db_existence_output, = execute_preformatted_as('postgres', db_existence_command, false, true)
+    db_existence_output&.strip == '1'
+  end
+
   def log_and_say(level, message, do_say = true, do_log = true)
     style = case level
             when :error
@@ -164,13 +171,19 @@ def execute_as!(user, command, do_say = true, do_log = true, extra_env = {})
     execute!(runuser_command, do_say, do_log, extra_env)
   end
 
+  def execute_preformatted_as(user, command, do_say = true, do_log = true, extra_env = {})
+    runuser_command = ['runuser', '-l', user, '-c', command]
+    execute_command(runuser_command, do_say, do_log, extra_env)
+  end
+
   def execute(command, do_say, do_log, extra_env = {})
     _stdout_stderr, status = execute_command(command, do_say, do_log, extra_env)
     status
   end
 
   def execute_command(command, do_say, do_log, extra_env = {})
-    log_and_say(:debug, "Executing: #{command}", do_say, do_log)
+    display_command = command.is_a?(Array) ? Shellwords.join(command) : command
+    log_and_say(:debug, "Executing: #{display_command}", do_say, do_log)
 
     begin
       stdout_stderr, status = Open3.capture2e(*Kafo::PuppetCommand.format_command(command, extra_env))
diff --git a/hooks/pre/35-change-evr-extension-ownership.rb b/hooks/pre/35-change-evr-extension-ownership.rb
new file mode 100644
index 00000000..983c3164
--- /dev/null
+++ b/hooks/pre/35-change-evr-extension-ownership.rb
@@ -0,0 +1,28 @@
+# In Katello 4.16, the 'evr' extension is removed from PostgreSQL and integrated into the Katello database via a migration.
+# This hook ensures the 'evr' extension's ownership is transferred to the 'foreman' user so migrations can act on it.
+
+if (local_foreman_db? || devel_scenario?) && execute("rpm -q postgresql-evr", false, false)
+  if app_value(:noop)
+    logger.debug("Would start postgresql service")
+  else
+    start_services(['postgresql'])
+  end
+
+  database = param_value('foreman', 'db_database') || 'foreman'
+  username = param_value('foreman', 'db_username') || 'foreman'
+
+  if local_db_exists?(database)
+    sql = "UPDATE pg_extension SET extowner = (SELECT oid FROM pg_authid WHERE rolname='#{username}') WHERE extname='evr'"
+    if app_value(:noop)
+      logger.debug("Would execute the following SQL statement to update ownership of the evr extension: #{sql}")
+    else
+      logger.debug("Updating ownership of the evr extension")
+      _, success = execute_preformatted_as('postgres', "psql -d #{database} -c \"#{sql}\"", false, true)
+      unless success
+        fail_and_exit("Failed to update ownership of the evr extension. Please make sure the following sql succeeds before proceeding: #{sql}")
+      end
+    end
+  else
+    logger.notice("The Foreman database #{database} does not exist.")
+  end
+end