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package store
import (
"fmt"
"net"
"time"
"golang.org/x/crypto/ssh"
"github.com/go-sql-driver/mysql"
"github.com/jmoiron/sqlx"
"github.com/nsheridan/cashier/server/config"
)
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
revoke *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.Config{
User: c["username"],
Passwd: c["password"],
Net: "tcp",
Addr: address,
DBName: "certs",
ParseTime: true,
}
dsn = m.FormatDSN()
case "sqlite":
driver = "sqlite3"
dsn = c["filename"]
}
conn, err := sqlx.Open(driver, dsn)
if err != nil {
return nil, fmt.Errorf("SQLStore: could not get a connection: %v", err)
}
if err := conn.Ping(); err != nil {
conn.Close()
return nil, fmt.Errorf("SQLStore: could not establish a good connection: %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.revoke, err = conn.Preparex("UPDATE issued_certs SET revoked = 1 WHERE key_id = ?"); err != nil {
return nil, fmt.Errorf("SQLStore: prepare revoke: %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
}
// 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, err
}
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 err
}
_, 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, err
}
recs := []*CertRecord{}
if err := db.listAll.Select(&recs); err != nil {
return nil, err
}
return recs, nil
}
// Revoke an issued cert by id.
func (db *SQLStore) Revoke(id string) error {
if err := db.conn.Ping(); err != nil {
return err
}
if _, err := db.revoke.Exec(id); err != nil {
return err
}
return nil
}
// GetRevoked returns all revoked certs
func (db *SQLStore) GetRevoked() ([]*CertRecord, error) {
if err := db.conn.Ping(); err != nil {
return nil, err
}
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()
}
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