Wide the mail_messages message_id column

Message-IDs can be up to 995 chars according to the RFC. For some leeway
I've bumped this to 1024.

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

1 files changed, 35 insertions, 0 deletions

diff --git a/lib/Migration/Version1040Date20200529124657.php b/lib/Migration/Version1040Date20200529124657.php
new file mode 100644
index 000000000..deb625728
--- /dev/null
+++ b/lib/Migration/Version1040Date20200529124657.php
@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\Mail\Migration;
+
+use Closure;
+use OCP\DB\ISchemaWrapper;
+use OCP\Migration\IOutput;
+use OCP\Migration\SimpleMigrationStep;
+
+class Version1040Date20200529124657 extends SimpleMigrationStep {
+
+	/**
+	 * @param IOutput $output
+	 * @param Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
+	 * @param array $options
+	 *
+	 * @return ISchemaWrapper
+	 */
+	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options) {
+		/** @var ISchemaWrapper $schema */
+		$schema = $schemaClosure();
+
+		$messagesTable = $schema->getTable('mail_messages');
+		/**
+		 * @see https://stackoverflow.com/questions/30079128/maximum-internet-email-message-id-length/34811337#34811337
+		 */
+		$messagesTable
+			->getColumn('message_id')
+			->setLength(1024);
+
+		return $schema;
+	}
+}