[Database version 1402] Rework parsed_url table

- Allow arbitrary-sized URL
- Use URL hash for primary key instead of truncated URL, requires table truncation pre update
- Add expires field

database.sql

@@ -1,6 +1,6 @@
 -- ------------------------------------------
 -- Friendica 2021.03-dev (Red Hot Poker)
--- DB_UPDATE_VERSION 1402
+-- DB_UPDATE_VERSION 1403
 -- ------------------------------------------
 
 
@@ -959,15 +959,17 @@ CREATE TABLE IF NOT EXISTS `openwebauth-token` (
 -- TABLE parsed_url
 --
 CREATE TABLE IF NOT EXISTS `parsed_url` (
-	`url` varbinary(255) NOT NULL COMMENT 'page url',
+	`url_hash` binary(64) NOT NULL COMMENT 'page url hash',
 	`guessing` boolean NOT NULL DEFAULT '0' COMMENT 'is the \'guessing\' mode active?',
 	`oembed` boolean NOT NULL DEFAULT '0' COMMENT 'is the data the result of oembed?',
+	`url` text NOT NULL COMMENT 'page url',
 	`content` mediumtext COMMENT 'page data',
 	`created` datetime NOT NULL DEFAULT '0001-01-01 00:00:00' COMMENT 'datetime of creation',
-	 PRIMARY KEY(`url`,`guessing`,`oembed`),
-	 INDEX `created` (`created`)
+	`expires` datetime NOT NULL DEFAULT '0001-01-01 00:00:00' COMMENT 'datetime of expiration',
+	PRIMARY KEY(`url_hash`,`guessing`,`oembed`),
+	INDEX `created` (`created`),
+	INDEX `expires` (`expires`)
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='cache for \'parse_url\' queries';
-
 --
 -- TABLE pconfig
 --

static/dbstructure.config.php

@@ -55,7 +55,7 @@
 use Friendica\Database\DBA;
 
 if (!defined('DB_UPDATE_VERSION')) {
-	define('DB_UPDATE_VERSION', 1402);
+	define('DB_UPDATE_VERSION', 1403);
 }
 
 return [
@@ -1019,15 +1019,18 @@ return [
 	"parsed_url" => [
 		"comment" => "cache for 'parse_url' queries",
 		"fields" => [
-			"url" => ["type" => "varbinary(255)", "not null" => "1", "primary" => "1", "comment" => "page url"],
+			"url_hash" => ["type" => "binary(64)", "not null" => "1", "primary" => "1", "comment" => "page url hash"],
 			"guessing" => ["type" => "boolean", "not null" => "1", "default" => "0", "primary" => "1", "comment" => "is the 'guessing' mode active?"],
 			"oembed" => ["type" => "boolean", "not null" => "1", "default" => "0", "primary" => "1", "comment" => "is the data the result of oembed?"],
+			"url" => ["type" => "text", "not null" => "1", "comment" => "page url"],
 			"content" => ["type" => "mediumtext", "comment" => "page data"],
 			"created" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "datetime of creation"],
+			"expires" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "datetime of expiration"],
 		],
 		"indexes" => [
-			"PRIMARY" => ["url", "guessing", "oembed"],
+			"PRIMARY" => ["url_hash", "guessing", "oembed"],
 			"created" => ["created"],
+			"expires" => ["expires"],
 		]
 	],
 	"pconfig" => [

update.php

@@ -817,3 +817,13 @@ function update_1400()
 
 	return Update::SUCCESS;
 }
+
+function pre_update_1403()
+{
+	// Necessary before a primary key change
+	if (!DBA::e("DROP TABLE `parsed_url`")) {
+		return Update::FAILED;
+	}
+
+	return Update::SUCCESS;
+}