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postgres.go
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/
postgres.go
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// Package postgres is a osin storage implementation for postgres.
package postgres
import (
"database/sql"
"fmt"
"github.com/RangelReale/osin"
"github.com/go-errors/errors"
"github.com/ory-am/common/pkg"
"log"
"time"
)
var schemas = []string{`CREATE TABLE IF NOT EXISTS client (
id text NOT NULL PRIMARY KEY,
secret text NOT NULL,
extra text NOT NULL,
redirect_uri text NOT NULL
)`, `CREATE TABLE IF NOT EXISTS authorize (
client text NOT NULL,
code text NOT NULL PRIMARY KEY,
expires_in int NOT NULL,
scope text NOT NULL,
redirect_uri text NOT NULL,
state text NOT NULL,
extra text NOT NULL,
created_at timestamp with time zone NOT NULL
)`, `CREATE TABLE IF NOT EXISTS access (
client text NOT NULL,
authorize text NOT NULL,
previous text NOT NULL,
access_token text NOT NULL PRIMARY KEY,
refresh_token text NOT NULL,
expires_in int NOT NULL,
scope text NOT NULL,
redirect_uri text NOT NULL,
extra text NOT NULL,
created_at timestamp with time zone NOT NULL
)`, `CREATE TABLE IF NOT EXISTS refresh (
token text NOT NULL PRIMARY KEY,
access text NOT NULL
)`}
// Storage implements interface "github.com/RangelReale/osin".Storage and interface "github.com/ory/osin-storage".Storage
type Storage struct {
db *sql.DB
}
// New returns a new postgres storage instance.
func New(db *sql.DB) *Storage {
return &Storage{db}
}
// CreateSchemas creates the schemata, if they do not exist yet in the database. Returns an error if something went wrong.
func (s *Storage) CreateSchemas() error {
for k, schema := range schemas {
if _, err := s.db.Exec(schema); err != nil {
log.Printf("Error creating schema %d: %s", k, schema)
return err
}
}
return nil
}
// Clone the storage if needed. For example, using mgo, you can clone the session with session.Clone
// to avoid concurrent access problems.
// This is to avoid cloning the connection at each method access.
// Can return itself if not a problem.
func (s *Storage) Clone() osin.Storage {
return s
}
// Close the resources the Storage potentially holds (using Clone for example)
func (s *Storage) Close() {
}
// GetClient loads the client by id
func (s *Storage) GetClient(id string) (osin.Client, error) {
row := s.db.QueryRow("SELECT id, secret, redirect_uri, extra FROM client WHERE id=$1", id)
var c osin.DefaultClient
var extra string
if err := row.Scan(&c.Id, &c.Secret, &c.RedirectUri, &extra); err == sql.ErrNoRows {
return nil, pkg.ErrNotFound
} else if err != nil {
return nil, errors.New(err)
}
c.UserData = extra
return &c, nil
}
// UpdateClient updates the client (identified by it's id) and replaces the values with the values of client.
func (s *Storage) UpdateClient(c osin.Client) error {
data, err := assertToString(c.GetUserData())
if err != nil {
return err
}
if _, err := s.db.Exec("UPDATE client SET (secret, redirect_uri, extra) = ($2, $3, $4) WHERE id=$1", c.GetId(), c.GetSecret(), c.GetRedirectUri(), data); err != nil {
return errors.New(err)
}
return nil
}
// CreateClient stores the client in the database and returns an error, if something went wrong.
func (s *Storage) CreateClient(c osin.Client) error {
data, err := assertToString(c.GetUserData())
if err != nil {
return err
}
if _, err := s.db.Exec("INSERT INTO client (id, secret, redirect_uri, extra) VALUES ($1, $2, $3, $4)", c.GetId(), c.GetSecret(), c.GetRedirectUri(), data); err != nil {
return errors.New(err)
}
return nil
}
// RemoveClient removes a client (identified by id) from the database. Returns an error if something went wrong.
func (s *Storage) RemoveClient(id string) (err error) {
if _, err = s.db.Exec("DELETE FROM client WHERE id=$1", id); err != nil {
return errors.New(err)
}
return nil
}
// SaveAuthorize saves authorize data.
func (s *Storage) SaveAuthorize(data *osin.AuthorizeData) (err error) {
extra, err := assertToString(data.UserData)
if err != nil {
return err
}
if _, err = s.db.Exec(
"INSERT INTO authorize (client, code, expires_in, scope, redirect_uri, state, created_at, extra) VALUES ($1, $2, $3, $4, $5, $6, $7, $8)",
data.Client.GetId(),
data.Code,
data.ExpiresIn,
data.Scope,
data.RedirectUri,
data.State,
data.CreatedAt,
extra,
); err != nil {
return errors.New(err)
}
return nil
}
// LoadAuthorize looks up AuthorizeData by a code.
// Client information MUST be loaded together.
// Optionally can return error if expired.
func (s *Storage) LoadAuthorize(code string) (*osin.AuthorizeData, error) {
var data osin.AuthorizeData
var extra string
var cid string
if err := s.db.QueryRow("SELECT client, code, expires_in, scope, redirect_uri, state, created_at, extra FROM authorize WHERE code=$1 LIMIT 1", code).Scan(&cid, &data.Code, &data.ExpiresIn, &data.Scope, &data.RedirectUri, &data.State, &data.CreatedAt, &extra); err == sql.ErrNoRows {
return nil, pkg.ErrNotFound
} else if err != nil {
return nil, errors.New(err)
}
data.UserData = extra
c, err := s.GetClient(cid)
if err != nil {
return nil, err
}
if data.ExpireAt().Before(time.Now()) {
return nil, errors.Errorf("Token expired at %s.", data.ExpireAt().String())
}
data.Client = c
return &data, nil
}
// RemoveAuthorize revokes or deletes the authorization code.
func (s *Storage) RemoveAuthorize(code string) (err error) {
if _, err = s.db.Exec("DELETE FROM authorize WHERE code=$1", code); err != nil {
return errors.New(err)
}
return nil
}
// SaveAccess writes AccessData.
// If RefreshToken is not blank, it must save in a way that can be loaded using LoadRefresh.
func (s *Storage) SaveAccess(data *osin.AccessData) (err error) {
prev := ""
authorizeData := &osin.AuthorizeData{}
if data.AccessData != nil {
prev = data.AccessData.AccessToken
}
if data.AuthorizeData != nil {
authorizeData = data.AuthorizeData
}
extra, err := assertToString(data.UserData)
if err != nil {
return err
}
tx, err := s.db.Begin()
if err != nil {
return errors.New(err)
}
if data.RefreshToken != "" {
if err := s.saveRefresh(tx, data.RefreshToken, data.AccessToken); err != nil {
return err
}
}
if data.Client == nil {
return errors.New("data.Client must not be nil")
}
_, err = tx.Exec("INSERT INTO access (client, authorize, previous, access_token, refresh_token, expires_in, scope, redirect_uri, created_at, extra) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)", data.Client.GetId(), authorizeData.Code, prev, data.AccessToken, data.RefreshToken, data.ExpiresIn, data.Scope, data.RedirectUri, data.CreatedAt, extra)
if err != nil {
if rbe := tx.Rollback(); rbe != nil {
return errors.New(rbe)
}
return errors.New(err)
}
if err = tx.Commit(); err != nil {
return errors.New(err)
}
return nil
}
// LoadAccess retrieves access data by token. Client information MUST be loaded together.
// AuthorizeData and AccessData DON'T NEED to be loaded if not easily available.
// Optionally can return error if expired.
func (s *Storage) LoadAccess(code string) (*osin.AccessData, error) {
var extra, cid, prevAccessToken, authorizeCode string
var result osin.AccessData
if err := s.db.QueryRow(
"SELECT client, authorize, previous, access_token, refresh_token, expires_in, scope, redirect_uri, created_at, extra FROM access WHERE access_token=$1 LIMIT 1",
code,
).Scan(
&cid,
&authorizeCode,
&prevAccessToken,
&result.AccessToken,
&result.RefreshToken,
&result.ExpiresIn,
&result.Scope,
&result.RedirectUri,
&result.CreatedAt,
&extra,
); err == sql.ErrNoRows {
return nil, pkg.ErrNotFound
} else if err != nil {
return nil, errors.New(err)
}
result.UserData = extra
client, err := s.GetClient(cid)
if err != nil {
return nil, err
}
result.Client = client
result.AuthorizeData, _ = s.LoadAuthorize(authorizeCode)
prevAccess, _ := s.LoadAccess(prevAccessToken)
result.AccessData = prevAccess
return &result, nil
}
// RemoveAccess revokes or deletes an AccessData.
func (s *Storage) RemoveAccess(code string) (err error) {
_, err = s.db.Exec("DELETE FROM access WHERE access_token=$1", code)
if err != nil {
return errors.New(err)
}
return nil
}
// LoadRefresh retrieves refresh AccessData. Client information MUST be loaded together.
// AuthorizeData and AccessData DON'T NEED to be loaded if not easily available.
// Optionally can return error if expired.
func (s *Storage) LoadRefresh(code string) (*osin.AccessData, error) {
row := s.db.QueryRow("SELECT access FROM refresh WHERE token=$1 LIMIT 1", code)
var access string
if err := row.Scan(&access); err == sql.ErrNoRows {
return nil, pkg.ErrNotFound
} else if err != nil {
return nil, errors.New(err)
}
return s.LoadAccess(access)
}
// RemoveRefresh revokes or deletes refresh AccessData.
func (s *Storage) RemoveRefresh(code string) error {
_, err := s.db.Exec("DELETE FROM refresh WHERE token=$1", code)
if err != nil {
return errors.New(err)
}
return nil
}
func (s *Storage) saveRefresh(tx *sql.Tx, refresh, access string) (err error) {
_, err = tx.Exec("INSERT INTO refresh (token, access) VALUES ($1, $2)", refresh, access)
if err != nil {
if rbe := tx.Rollback(); rbe != nil {
return errors.New(rbe)
}
return errors.New(err)
}
return nil
}
func assertToString(in interface{}) (string, error) {
var ok bool
var data string
if in == nil {
return "", nil
} else if data, ok = in.(string); ok {
return data, nil
} else if str, ok := in.(fmt.Stringer); ok {
return str.String(), nil
}
return "", errors.Errorf(`Could not assert "%v" to string`, in)
}