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https://github.com/go-gitea/gitea
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ac88b0ee83
* Ensure that schema search path is set with every connection on postgres Unfortunately every connection to postgres requires that the search path is set appropriately. This PR shadows the postgres driver to ensure that as soon as a connection is open, the search_path is set appropriately. Fix #14088 Signed-off-by: Andrew Thornton <art27@cantab.net> * no golangci-lint that is not a helpful suggestion Signed-off-by: Andrew Thornton <art27@cantab.net> * Use Execer if available Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: techknowlogick <techknowlogick@gitea.io>
75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package models
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import (
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"database/sql"
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"database/sql/driver"
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"sync"
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"code.gitea.io/gitea/modules/setting"
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"github.com/lib/pq"
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"xorm.io/xorm/dialects"
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)
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var registerOnce sync.Once
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func registerPostgresSchemaDriver() {
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registerOnce.Do(func() {
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sql.Register("postgresschema", &postgresSchemaDriver{})
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dialects.RegisterDriver("postgresschema", dialects.QueryDriver("postgres"))
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})
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}
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type postgresSchemaDriver struct {
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pq.Driver
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}
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// Open opens a new connection to the database. name is a connection string.
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// This function opens the postgres connection in the default manner but immediately
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// runs set_config to set the search_path appropriately
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func (d *postgresSchemaDriver) Open(name string) (driver.Conn, error) {
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conn, err := d.Driver.Open(name)
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if err != nil {
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return conn, err
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}
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schemaValue, _ := driver.String.ConvertValue(setting.Database.Schema)
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// golangci lint is incorrect here - there is no benefit to using driver.ExecerContext here
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// and in any case pq does not implement it
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if execer, ok := conn.(driver.Execer); ok { //nolint
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_, err := execer.Exec(`SELECT set_config(
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'search_path',
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$1 || ',' || current_setting('search_path'),
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false)`, []driver.Value{schemaValue}) //nolint
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if err != nil {
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_ = conn.Close()
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return nil, err
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}
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return conn, nil
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}
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stmt, err := conn.Prepare(`SELECT set_config(
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'search_path',
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$1 || ',' || current_setting('search_path'),
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false)`)
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if err != nil {
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_ = conn.Close()
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return nil, err
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}
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defer stmt.Close()
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// driver.String.ConvertValue will never return err for string
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// golangci lint is incorrect here - there is no benefit to using stmt.ExecWithContext here
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_, err = stmt.Exec([]driver.Value{schemaValue}) //nolint
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if err != nil {
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_ = conn.Close()
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return nil, err
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}
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return conn, nil
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}
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