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package store
import (
"fmt"
"log"
"net"
"path"
"time"
"golang.org/x/crypto/ssh"
"github.com/go-sql-driver/mysql"
"github.com/gobuffalo/packr"
multierror "github.com/hashicorp/go-multierror"
"github.com/jmoiron/sqlx"
"github.com/nsheridan/cashier/server/config"
"github.com/pkg/errors"
migrate "github.com/rubenv/sql-migrate"
)
var _ CertStorer = (*sqlStore)(nil)
// sqlStore is an sql-based CertStorer
type sqlStore struct {
conn *sqlx.DB
get *sqlx.Stmt
set *sqlx.Stmt
listAll *sqlx.Stmt
listCurrent *sqlx.Stmt
revoked *sqlx.Stmt
}
// newSQLStore returns a *sql.DB CertStorer.
func newSQLStore(c config.Database) (*sqlStore, error) {
var driver string
var dsn string
switch c["type"] {
case "mysql":
driver = "mysql"
address := c["address"]
_, _, err := net.SplitHostPort(address)
if err != nil {
address = address + ":3306"
}
m := mysql.NewConfig()
m.User = c["username"]
m.Passwd = c["password"]
m.Addr = address
m.Net = "tcp"
m.DBName = c["dbname"]
if m.DBName == "" {
m.DBName = "certs" // Legacy database name
}
m.ParseTime = true
dsn = m.FormatDSN()
case "sqlite":
driver = "sqlite3"
dsn = c["filename"]
}
conn, err := sqlx.Connect(driver, dsn)
if err != nil {
return nil, fmt.Errorf("sqlStore: could not get a connection: %v", err)
}
if err := autoMigrate(driver, conn); err != nil {
return nil, fmt.Errorf("sqlStore: could not update schema: %v", err)
}
db := &sqlStore{
conn: conn,
}
if db.set, err = conn.Preparex("INSERT INTO issued_certs (key_id, principals, created_at, expires_at, raw_key) VALUES (?, ?, ?, ?, ?)"); err != nil {
return nil, fmt.Errorf("sqlStore: prepare set: %v", err)
}
if db.get, err = conn.Preparex("SELECT * FROM issued_certs WHERE key_id = ?"); err != nil {
return nil, fmt.Errorf("sqlStore: prepare get: %v", err)
}
if db.listAll, err = conn.Preparex("SELECT * FROM issued_certs"); err != nil {
return nil, fmt.Errorf("sqlStore: prepare listAll: %v", err)
}
if db.listCurrent, err = conn.Preparex("SELECT * FROM issued_certs WHERE expires_at >= ?"); err != nil {
return nil, fmt.Errorf("sqlStore: prepare listCurrent: %v", err)
}
if db.revoked, err = conn.Preparex("SELECT * FROM issued_certs WHERE revoked = 1 AND ? <= expires_at"); err != nil {
return nil, fmt.Errorf("sqlStore: prepare revoked: %v", err)
}
return db, nil
}
func autoMigrate(driver string, conn *sqlx.DB) error {
log.Print("Executing any pending schema migrations")
var err error
migrate.SetTable("schema_migrations")
srcs := &migrate.PackrMigrationSource{
Box: packr.NewBox(path.Join("migrations", driver)),
}
n, err := migrate.Exec(conn.DB, driver, srcs, migrate.Up)
if err != nil {
err = multierror.Append(err)
return err
}
log.Printf("Executed %d migrations", n)
if err != nil {
log.Fatalf("Errors were found running migrations: %v", err)
}
return nil
}
// rowScanner is implemented by sql.Row and sql.Rows
type rowScanner interface {
Scan(dest ...interface{}) error
}
// Get a single *CertRecord
func (db *sqlStore) Get(id string) (*CertRecord, error) {
if err := db.conn.Ping(); err != nil {
return nil, errors.Wrap(err, "unable to connect to database")
}
r := &CertRecord{}
return r, db.get.Get(r, id)
}
// SetCert parses a *ssh.Certificate and records it
func (db *sqlStore) SetCert(cert *ssh.Certificate) error {
return db.SetRecord(parseCertificate(cert))
}
// SetRecord records a *CertRecord
func (db *sqlStore) SetRecord(rec *CertRecord) error {
if err := db.conn.Ping(); err != nil {
return errors.Wrap(err, "unable to connect to database")
}
_, err := db.set.Exec(rec.KeyID, rec.Principals, rec.CreatedAt, rec.Expires, rec.Raw)
return err
}
// List returns all recorded certs.
// By default only active certs are returned.
func (db *sqlStore) List(includeExpired bool) ([]*CertRecord, error) {
if err := db.conn.Ping(); err != nil {
return nil, errors.Wrap(err, "unable to connect to database")
}
recs := []*CertRecord{}
if includeExpired {
if err := db.listAll.Select(&recs); err != nil {
return nil, err
}
} else {
if err := db.listCurrent.Select(&recs, time.Now()); err != nil {
return nil, err
}
}
return recs, nil
}
// Revoke an issued cert by id.
func (db *sqlStore) Revoke(ids []string) error {
if err := db.conn.Ping(); err != nil {
return errors.Wrap(err, "unable to connect to database")
}
q, args, err := sqlx.In("UPDATE issued_certs SET revoked = 1 WHERE key_id IN (?)", ids)
_, err = db.conn.Query(q, args...)
return err
}
// GetRevoked returns all revoked certs
func (db *sqlStore) GetRevoked() ([]*CertRecord, error) {
if err := db.conn.Ping(); err != nil {
return nil, errors.Wrap(err, "unable to connect to database")
}
var recs []*CertRecord
if err := db.revoked.Select(&recs, time.Now().UTC()); err != nil {
return nil, err
}
return recs, nil
}
// Close the connection to the database
func (db *sqlStore) Close() error {
return db.conn.Close()
}
|
