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// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package v1_13 //nolint
import (
"context"
"fmt"
"strings"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"xorm.io/xorm"
"xorm.io/xorm/schemas"
)
func SetDefaultPasswordToArgon2(x *xorm.Engine) error {
switch {
case setting.Database.Type.IsMySQL():
_, err := x.Exec("ALTER TABLE `user` ALTER passwd_hash_algo SET DEFAULT 'argon2';")
return err
case setting.Database.Type.IsPostgreSQL():
_, err := x.Exec("ALTER TABLE `user` ALTER COLUMN passwd_hash_algo SET DEFAULT 'argon2';")
return err
case setting.Database.Type.IsMSSQL():
// need to find the constraint and drop it, then recreate it.
sess := x.NewSession()
defer sess.Close()
if err := sess.Begin(); err != nil {
return err
}
res, err := sess.QueryString("SELECT [name] FROM sys.default_constraints WHERE parent_object_id=OBJECT_ID(?) AND COL_NAME(parent_object_id, parent_column_id)=?;", "user", "passwd_hash_algo")
if err != nil {
return err
}
if len(res) > 0 {
constraintName := res[0]["name"]
log.Error("Results of select constraint: %s", constraintName)
_, err := sess.Exec("ALTER TABLE [user] DROP CONSTRAINT " + constraintName)
if err != nil {
return err
}
_, err = sess.Exec("ALTER TABLE [user] ADD CONSTRAINT " + constraintName + " DEFAULT 'argon2' FOR passwd_hash_algo")
if err != nil {
return err
}
} else {
_, err := sess.Exec("ALTER TABLE [user] ADD DEFAULT('argon2') FOR passwd_hash_algo")
if err != nil {
return err
}
}
return sess.Commit()
case setting.Database.Type.IsSQLite3():
// drop through
default:
log.Fatal("Unrecognized DB")
}
tables, err := x.DBMetas()
if err != nil {
return err
}
// Now for SQLite we have to recreate the table
var table *schemas.Table
tableName := "user"
for _, table = range tables {
if table.Name == tableName {
break
}
}
if table == nil || table.Name != tableName {
type User struct {
PasswdHashAlgo string `xorm:"NOT NULL DEFAULT 'argon2'"`
}
return x.Sync2(new(User))
}
column := table.GetColumn("passwd_hash_algo")
if column == nil {
type User struct {
PasswdHashAlgo string `xorm:"NOT NULL DEFAULT 'argon2'"`
}
return x.Sync2(new(User))
}
tempTableName := "tmp_recreate__user"
column.Default = "'argon2'"
createTableSQL, _, err := x.Dialect().CreateTableSQL(context.Background(), x.DB(), table, tempTableName)
if err != nil {
return err
}
sess := x.NewSession()
defer sess.Close()
if err := sess.Begin(); err != nil {
return err
}
if _, err := sess.Exec(createTableSQL); err != nil {
log.Error("Unable to create table %s. Error: %v\n", tempTableName, err, createTableSQL)
return err
}
for _, index := range table.Indexes {
if _, err := sess.Exec(x.Dialect().CreateIndexSQL(tempTableName, index)); err != nil {
log.Error("Unable to create indexes on temporary table %s. Error: %v", tempTableName, err)
return err
}
}
newTableColumns := table.Columns()
if len(newTableColumns) == 0 {
return fmt.Errorf("no columns in new table")
}
hasID := false
for _, column := range newTableColumns {
hasID = hasID || (column.IsPrimaryKey && column.IsAutoIncrement)
}
sqlStringBuilder := &strings.Builder{}
_, _ = sqlStringBuilder.WriteString("INSERT INTO `")
_, _ = sqlStringBuilder.WriteString(tempTableName)
_, _ = sqlStringBuilder.WriteString("` (`")
_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Name)
_, _ = sqlStringBuilder.WriteString("`")
for _, column := range newTableColumns[1:] {
_, _ = sqlStringBuilder.WriteString(", `")
_, _ = sqlStringBuilder.WriteString(column.Name)
_, _ = sqlStringBuilder.WriteString("`")
}
_, _ = sqlStringBuilder.WriteString(")")
_, _ = sqlStringBuilder.WriteString(" SELECT ")
if newTableColumns[0].Default != "" {
_, _ = sqlStringBuilder.WriteString("COALESCE(`")
_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Name)
_, _ = sqlStringBuilder.WriteString("`, ")
_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Default)
_, _ = sqlStringBuilder.WriteString(")")
} else {
_, _ = sqlStringBuilder.WriteString("`")
_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Name)
_, _ = sqlStringBuilder.WriteString("`")
}
for _, column := range newTableColumns[1:] {
if column.Default != "" {
_, _ = sqlStringBuilder.WriteString(", COALESCE(`")
_, _ = sqlStringBuilder.WriteString(column.Name)
_, _ = sqlStringBuilder.WriteString("`, ")
_, _ = sqlStringBuilder.WriteString(column.Default)
_, _ = sqlStringBuilder.WriteString(")")
} else {
_, _ = sqlStringBuilder.WriteString(", `")
_, _ = sqlStringBuilder.WriteString(column.Name)
_, _ = sqlStringBuilder.WriteString("`")
}
}
_, _ = sqlStringBuilder.WriteString(" FROM `")
_, _ = sqlStringBuilder.WriteString(tableName)
_, _ = sqlStringBuilder.WriteString("`")
if _, err := sess.Exec(sqlStringBuilder.String()); err != nil {
log.Error("Unable to set copy data in to temp table %s. Error: %v", tempTableName, err)
return err
}
// SQLite will drop all the constraints on the old table
if _, err := sess.Exec(fmt.Sprintf("DROP TABLE `%s`", tableName)); err != nil {
log.Error("Unable to drop old table %s. Error: %v", tableName, err)
return err
}
for _, index := range table.Indexes {
if _, err := sess.Exec(x.Dialect().DropIndexSQL(tempTableName, index)); err != nil {
log.Error("Unable to drop indexes on temporary table %s. Error: %v", tempTableName, err)
return err
}
}
if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` RENAME TO `%s`", tempTableName, tableName)); err != nil {
log.Error("Unable to rename %s to %s. Error: %v", tempTableName, tableName, err)
return err
}
for _, index := range table.Indexes {
if _, err := sess.Exec(x.Dialect().CreateIndexSQL(tableName, index)); err != nil {
log.Error("Unable to recreate indexes on table %s. Error: %v", tableName, err)
return err
}
}
return sess.Commit()
}
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