107 lines
4.5 KiB
Java
107 lines
4.5 KiB
Java
/*
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* This file is part of Player Analytics (Plan).
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*
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* Plan is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License v3 as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Plan is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Plan. If not, see <https://www.gnu.org/licenses/>.
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*/
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package com.djrapitops.plan.storage.database.transactions.patches;
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import com.djrapitops.plan.exceptions.database.DBOpException;
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import com.djrapitops.plan.settings.config.PlanConfig;
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import com.djrapitops.plan.settings.config.paths.DatabaseSettings;
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import com.djrapitops.plan.storage.database.DBType;
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import com.djrapitops.plan.storage.database.queries.Query;
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import net.playeranalytics.plugin.server.PluginLogger;
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import org.intellij.lang.annotations.Language;
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import javax.inject.Inject;
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import javax.inject.Singleton;
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import java.util.List;
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/**
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* Corrects database charset and collation.
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*
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* @author AuroraLS3
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*/
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@Singleton
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public class CorrectWrongCharacterEncodingPatch extends Patch {
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private final PluginLogger logger;
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private final PlanConfig config;
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private List<String> correctionSqlQueries;
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@Inject
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public CorrectWrongCharacterEncodingPatch(PluginLogger logger, PlanConfig config) {
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this.logger = logger;
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this.config = config;
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}
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@Override
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public boolean hasBeenApplied() {
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if (dbType != DBType.MYSQL) return true;
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correctionSqlQueries = query(getBadTableCorrectionQueries());
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// Fix for MariaDB mysql.user table being a view
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correctionSqlQueries.removeIf(sql -> sql.startsWith("ALTER TABLE `user`"));
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return correctionSqlQueries.isEmpty();
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}
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public Query<List<String>> getBadTableCorrectionQueries() {
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String databaseName = config.get(DatabaseSettings.MYSQL_DATABASE);
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@Language("MySQL")
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String selectTablesWithWrongCharset = "SELECT CONCAT('ALTER TABLE `', table_name, '` CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;')\n" +
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"FROM information_schema.TABLES AS T, information_schema.`COLLATION_CHARACTER_SET_APPLICABILITY` AS C\n" +
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"WHERE C.collation_name = T.table_collation\n" +
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"AND T.table_schema = '" + databaseName + "'\n" +
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"AND\n" +
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"(\n" +
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" C.CHARACTER_SET_NAME != 'utf8mb4'\n" +
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" OR\n" +
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" C.COLLATION_NAME != 'utf8mb4_general_ci'\n" +
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")";
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@Language("MySQL")
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String selectColumnsWithWrongCharset = "SELECT CONCAT('ALTER TABLE `', table_name, '` MODIFY `', column_name, '` ', DATA_TYPE, '(', CHARACTER_MAXIMUM_LENGTH, ') CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci', (CASE WHEN IS_NULLABLE = 'NO' THEN ' NOT NULL' ELSE '' END), ';')\n" +
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"FROM information_schema.COLUMNS \n" +
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"WHERE TABLE_SCHEMA = '" + databaseName + "'\n" +
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"AND DATA_TYPE = 'varchar'\n" +
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"AND\n" +
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"(\n" +
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" CHARACTER_SET_NAME != 'utf8mb4'\n" +
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" OR\n" +
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" COLLATION_NAME != 'utf8mb4_general_ci'\n" +
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")";
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@Language("MySQL")
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String sql = selectTablesWithWrongCharset + " UNION " + selectColumnsWithWrongCharset;
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return db -> db.queryList(sql, resultSet -> resultSet.getString(1));
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}
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@Override
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protected void applyPatch() {
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try {
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for (String correctionSqlQuery : correctionSqlQueries) {
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execute(correctionSqlQuery);
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}
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@Language("MySQL")
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String sql = "ALTER DATABASE " + config.get(DatabaseSettings.MYSQL_DATABASE) + " CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci";
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execute(sql);
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} catch (DBOpException e) {
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logger.warn("CorrectWrongCharacterEncodingPatch could not be applied: " + e.getMessage());
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logger.warn("Apply it manually or correct access privileges for MySQL user.");
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logger.warn("Instructions for manual application https://github.com/plan-player-analytics/Plan/issues/2293");
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} finally {
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correctionSqlQueries.clear();
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}
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}
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}
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