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sqlite.go
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sqlite.go
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package database
import (
"context"
"database/sql"
"fmt"
"sync"
"time"
"github.com/gandalfmagic/go-token-handler/opentelemetry"
"github.com/gandalfmagic/encryption"
"github.com/google/uuid"
_ "github.com/mattn/go-sqlite3"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/codes"
)
const (
querySQLiteCreate = `CREATE TABLE IF NOT EXISTS sessions (
session_id TEXT NOT NULL PRIMARY KEY,
subject TEXT NOT NULL CHECK(subject != ''),
access_token TEXT NOT NULL CHECK(access_token != ''),
refresh_token TEXT NOT NULL CHECK(refresh_token != ''),
id_token TEXT NOT NULL CHECK(id_token != ''),
expires_at INTEGER NOT NULL);
CREATE INDEX IF NOT EXISTS session_subject ON sessions (subject);
CREATE INDEX IF NOT EXISTS session_expires_at ON sessions (expires_at);`
querySQLiteDelete = `DELETE FROM sessions WHERE session_id = ?`
querySQLiteInsert = `INSERT INTO sessions (session_id, subject, access_token, refresh_token, id_token, expires_at) VALUES (?, ?, ?, ?, ?, ?)`
querySQLiteSelect = `SELECT subject, access_token, refresh_token, id_token, expires_at FROM sessions WHERE session_id = ?`
querySQLiteUpdate = `UPDATE sessions SET subject = ?, access_token = ?, refresh_token = ?, id_token = ?, expires_at = ? WHERE session_id = ?`
querySQLitePurge = `DELETE FROM sessions WHERE expires_at < ?`
)
type sqlite struct {
db *sql.DB
cipher encryption.HexCipher
}
var (
sqliteInstance *sqlite
sqliteOnce sync.Once
)
func NewSQLiteSessionImpl(_ context.Context, cipher encryption.HexCipher, database string) (SessionImpl, error) {
var db *sql.DB
var err error
sqliteOnce.Do(func() {
db, err = sql.Open("sqlite3", fmt.Sprintf("file:%s", database))
if err != nil {
return
}
_, err = db.Exec(querySQLiteCreate)
if err != nil {
return
}
sqliteInstance = &sqlite{db: db, cipher: cipher}
})
if err != nil {
return nil, err
}
return sqliteInstance, err
}
func (db *sqlite) CloseConnection(_ context.Context) error {
return db.db.Close()
}
func (db *sqlite) Add(ctx context.Context, s SessionData) (string, error) {
_, span := opentelemetry.NewSpanFromContext(ctx, "session.postgresql: INSERT")
if span != nil {
defer span.End()
}
id := uuid.New().String()
if span != nil {
span.SetAttributes(
attribute.String("db.table", "sessions"),
attribute.String("db.table.id", id),
attribute.String("db.table.subject", s.Subject),
attribute.String("db.table.expires_at", s.ExpiresAt.String()))
}
enc, err := encryptArgs(db.cipher, s)
if err != nil {
if span != nil {
span.SetStatus(codes.Error, "session.sqlite: INSERT -> encryptArgs")
span.SetAttributes(attribute.String("error.message", err.Error()))
}
return "", err
}
if _, err := db.db.Exec(querySQLiteInsert, id, enc.Subject, enc.AccessToken, enc.RefreshToken, enc.IDToken, enc.ExpiresAt.Unix()); err != nil {
if span != nil {
span.SetStatus(codes.Error, "session.sqlite: INSERT -> db.db.Exec")
span.SetAttributes(attribute.String("error.message", err.Error()))
}
return "", err
}
return id, nil
}
func (db *sqlite) Delete(ctx context.Context, id string) error {
_, span := opentelemetry.NewSpanFromContext(ctx, "session.postgresql: INSERT")
if span != nil {
defer span.End()
span.SetAttributes(
attribute.String("db.table", "sessions"),
attribute.String("db.table.id", id))
}
_, err := db.db.Exec(querySQLiteDelete, id)
if err != nil {
if span != nil {
span.SetStatus(codes.Error, "session.sqlite: DELETE -> db.conn.Exec")
span.SetAttributes(attribute.String("error.message", err.Error()))
}
return err
}
return nil
}
func (db *sqlite) Get(ctx context.Context, id string) (SessionData, error) {
_, span := opentelemetry.NewSpanFromContext(ctx, "session.postgresql: INSERT")
if span != nil {
defer span.End()
span.SetAttributes(
attribute.String("db.table", "sessions"),
attribute.String("db.table.id", id))
}
s := SessionData{}
var expiresAt int64
if err := db.db.QueryRow(querySQLiteSelect, id).Scan(&s.Subject, &s.AccessToken, &s.RefreshToken, &s.IDToken, &expiresAt); err != nil {
if span != nil {
span.SetStatus(codes.Error, "session.sqlite: INSERT -> db.conn.QueryRow")
span.SetAttributes(attribute.String("error.message", err.Error()))
}
return SessionData{}, err
}
s.ExpiresAt = time.Unix(expiresAt, 0)
return decryptArgs(db.cipher, s)
}
func (db *sqlite) Update(ctx context.Context, id string, s SessionData) error {
_, span := opentelemetry.NewSpanFromContext(ctx, "session.postgresql: INSERT")
if span != nil {
defer span.End()
span.SetAttributes(
attribute.String("db.table", "sessions"),
attribute.String("db.table.id", id),
attribute.String("db.table.subject", s.Subject),
attribute.String("db.table.expires_at", s.ExpiresAt.String()))
}
oldSession, err := db.Get(context.TODO(), id)
if err != nil {
if span != nil {
span.SetStatus(codes.Error, "session.sqlite: UPDATE -> Get")
span.SetAttributes(attribute.String("error.message", err.Error()))
}
return err
}
if s.Subject != oldSession.Subject {
if span != nil {
span.SetStatus(codes.Error, "session.sqlite: subject mismatch")
}
return ErrSessionsMismatch
}
enc, err := encryptArgs(db.cipher, s)
if err != nil {
if span != nil {
span.SetStatus(codes.Error, "session.sqlite: UPDATE -> encryptArgs")
span.SetAttributes(attribute.String("error.message", err.Error()))
}
return err
}
_, err = db.db.Exec(querySQLiteUpdate, enc.Subject, enc.AccessToken, enc.RefreshToken, enc.IDToken, enc.ExpiresAt.Unix(), id)
if err != nil {
if span != nil {
span.SetStatus(codes.Error, "session.sqlite: UPDATE -> db.conn.Exec")
span.SetAttributes(attribute.String("error.message", err.Error()))
}
return err
}
return nil
}
func (db *sqlite) Purge(_ context.Context) error {
now := time.Now().Unix()
if _, err := db.db.Exec(querySQLitePurge, now); err != nil {
return err
}
return nil
}