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Add browser auth, contributor access, and gated CI
6c84d387e5f608360e30484a1a5b1cff41076850 · Keenan Nemetz · 16d ago · parent c36d5073
Add browser auth, contributor access, and gated CI Browser sign-in now uses passkeys. Enrollment links are one-time, sessions are hashed in users.db, and issue/comment/approval writes use the session account. HTTPS public_url is required for WebAuthn. Add the contributor role between read and maintain. Contributors can discuss and open change requests, and may push only refs/heads/contrib/<account-id>/. Contributor CI is held per commit until a maintainer allows the exact tip from the repository page. Rename the write role to maintain. write remains accepted as the historical spelling, and access.Write remains as a Go alias so existing callers and ACL rows keep working. Update the web, CLI, queue schema, and guides for the new flows, and cover the role, namespace, auth, and CI-gating paths in tests.
forge/identity/passkey.go +576
| @@ -0,0 +1,576 @@ | |||
| 1 | package identity | ||
| 2 | |||
| 3 | // Passkeys and enrollment invites. | ||
| 4 | // | ||
| 5 | // A passkey is the browser counterpart of an SSH key: the authenticator holds | ||
| 6 | // the private half, Vole stores the public half, and a successful assertion | ||
| 7 | // resolves to the same stable account id the SSH handshake produces. An account | ||
| 8 | // created without an SSH key starts with an invite instead; the invite is a | ||
| 9 | // one-time bearer secret, stored only as a hash, that lets the account holder | ||
| 10 | // register their first passkey. | ||
| 11 | // | ||
| 12 | // Invites are deliberately short-lived and single-use. Losing every passkey is | ||
| 13 | // recovered by an administrator issuing another invite out of band, not by an | ||
| 14 | // email reset flow. | ||
| 15 | |||
| 16 | import ( | ||
| 17 | "crypto/rand" | ||
| 18 | "crypto/sha256" | ||
| 19 | "database/sql" | ||
| 20 | "encoding/base64" | ||
| 21 | "encoding/hex" | ||
| 22 | "encoding/json" | ||
| 23 | "errors" | ||
| 24 | "fmt" | ||
| 25 | "sort" | ||
| 26 | "strings" | ||
| 27 | "time" | ||
| 28 | |||
| 29 | "github.com/rodent-software/vole/core/id" | ||
| 30 | ) | ||
| 31 | |||
| 32 | const ( | ||
| 33 | // DefaultInviteTTL is how long an enrollment link stays usable. Long enough | ||
| 34 | // for an administrator to hand it over; short enough that a leaked link is | ||
| 35 | // not an indefinite key to the account. | ||
| 36 | DefaultInviteTTL = 72 * time.Hour | ||
| 37 | |||
| 38 | inviteTokenBytes = 32 | ||
| 39 | ) | ||
| 40 | |||
| 41 | var ( | ||
| 42 | // ErrInviteInvalid covers missing, expired, used and superseded invites. It | ||
| 43 | // is deliberately one error so a page cannot be used to probe which links | ||
| 44 | // once existed. | ||
| 45 | ErrInviteInvalid = errors.New("identity: invite is invalid or expired") | ||
| 46 | // ErrCredentialNotFound covers unknown and retired-account credentials. | ||
| 47 | ErrCredentialNotFound = errors.New("identity: no such passkey") | ||
| 48 | ) | ||
| 49 | |||
| 50 | // Credential is the public half of a passkey. The field names follow the | ||
| 51 | // WebAuthn credential shape so the server's ceremony code can convert without a | ||
| 52 | // second vocabulary. | ||
| 53 | type Credential struct { | ||
| 54 | ID []byte | ||
| 55 | PublicKey []byte | ||
| 56 | AttestationType string | ||
| 57 | Transport []string | ||
| 58 | Flags CredentialFlags | ||
| 59 | Authenticator Authenticator | ||
| 60 | Label string | ||
| 61 | Created time.Time | ||
| 62 | LastUsed time.Time | ||
| 63 | } | ||
| 64 | |||
| 65 | type CredentialFlags struct { | ||
| 66 | UserPresent bool | ||
| 67 | UserVerified bool | ||
| 68 | BackupEligible bool | ||
| 69 | BackupState bool | ||
| 70 | } | ||
| 71 | |||
| 72 | type Authenticator struct { | ||
| 73 | AAGUID []byte | ||
| 74 | SignCount uint32 | ||
| 75 | CloneWarning bool | ||
| 76 | Attachment string | ||
| 77 | } | ||
| 78 | |||
| 79 | // Invite is returned once, when it is created. The Token is the plaintext part | ||
| 80 | // of the enrollment URL; the database only has its hash. | ||
| 81 | type Invite struct { | ||
| 82 | Token string | ||
| 83 | Expires time.Time | ||
| 84 | } | ||
| 85 | |||
| 86 | // CreateWithInvite creates an account with no SSH key and an enrollment invite | ||
| 87 | // in the same transaction. This is how a browser-only account — somebody who | ||
| 88 | // files issues but does not push — comes into existence. | ||
| 89 | func (s *Store) CreateWithInvite(name, actor string, ttl time.Duration) (*Account, *Invite, error) { | ||
| 90 | if err := ValidateName(name); err != nil { | ||
| 91 | return nil, nil, err | ||
| 92 | } | ||
| 93 | now := time.Now().UTC() | ||
| 94 | accountID, err := id.New(now) | ||
| 95 | if err != nil { | ||
| 96 | return nil, nil, err | ||
| 97 | } | ||
| 98 | token, tokenHash, err := newInviteToken() | ||
| 99 | if err != nil { | ||
| 100 | return nil, nil, err | ||
| 101 | } | ||
| 102 | inv := &Invite{Token: token, Expires: now.Add(inviteTTL(ttl))} | ||
| 103 | pending := &pendingInvite{tokenHash: tokenHash, expires: inv.Expires, createdBy: actor} | ||
| 104 | err = s.mutate("identity.create", actor, accountID, name+" invite", func(tx *sql.Tx) error { | ||
| 105 | return createAccount(tx, name, accountID, now, nil, pending) | ||
| 106 | }) | ||
| 107 | if err != nil { | ||
| 108 | return nil, nil, err | ||
| 109 | } | ||
| 110 | a, err := s.Find(accountID) | ||
| 111 | if err != nil { | ||
| 112 | return nil, nil, err | ||
| 113 | } | ||
| 114 | return a, inv, nil | ||
| 115 | } | ||
| 116 | |||
| 117 | // Invite issues a fresh enrollment link for an existing account and supersedes | ||
| 118 | // any unused link that came before it. | ||
| 119 | func (s *Store) Invite(idOrName, actor string, ttl time.Duration) (*Invite, error) { | ||
| 120 | now := time.Now().UTC() | ||
| 121 | token, tokenHash, err := newInviteToken() | ||
| 122 | if err != nil { | ||
| 123 | return nil, err | ||
| 124 | } | ||
| 125 | inv := &Invite{Token: token, Expires: now.Add(inviteTTL(ttl))} | ||
| 126 | pending := &pendingInvite{tokenHash: tokenHash, expires: inv.Expires, createdBy: actor} | ||
| 127 | err = s.mutate("identity.invite", actor, idOrName, "expires "+inv.Expires.Format(time.RFC3339), func(tx *sql.Tx) error { | ||
| 128 | a, err := findTx(tx, idOrName) | ||
| 129 | if err != nil { | ||
| 130 | return err | ||
| 131 | } | ||
| 132 | if !a.Active() { | ||
| 133 | return fmt.Errorf("identity: %s is retired", a.Name) | ||
| 134 | } | ||
| 135 | // One live link per account. Marking the old ones used rather than | ||
| 136 | // deleting them leaves an audit trail without leaving a usable secret. | ||
| 137 | if _, err := tx.Exec(`UPDATE user_invites SET used_at=? WHERE user_id=? AND used_at IS NULL`, now.Unix(), a.ID); err != nil { | ||
| 138 | return fmt.Errorf("identity: replace invite: %w", err) | ||
| 139 | } | ||
| 140 | return insertInvite(tx, a.ID, pending, now) | ||
| 141 | }) | ||
| 142 | if err != nil { | ||
| 143 | return nil, err | ||
| 144 | } | ||
| 145 | return inv, nil | ||
| 146 | } | ||
| 147 | |||
| 148 | // InviteAccount validates an enrollment token without consuming it. The invite | ||
| 149 | // page uses this to show whose account is being claimed; nothing is changed | ||
| 150 | // until the passkey ceremony succeeds. | ||
| 151 | func (s *Store) InviteAccount(token string) (*Account, error) { | ||
| 152 | token = strings.TrimSpace(token) | ||
| 153 | if token == "" { | ||
| 154 | return nil, ErrInviteInvalid | ||
| 155 | } | ||
| 156 | var a Account | ||
| 157 | var created int64 | ||
| 158 | err := s.db.QueryRow(` | ||
| 159 | SELECT u.id, u.name, u.status, u.created | ||
| 160 | FROM user_invites i JOIN users u ON u.id = i.user_id | ||
| 161 | WHERE i.token_hash = ? AND i.used_at IS NULL AND i.expires > ? AND u.status = 'active'`, | ||
| 162 | hashToken(token), time.Now().UTC().Unix()). | ||
| 163 | Scan(&a.ID, &a.Name, &a.Status, &created) | ||
| 164 | if errors.Is(err, sql.ErrNoRows) { | ||
| 165 | return nil, ErrInviteInvalid | ||
| 166 | } | ||
| 167 | if err != nil { | ||
| 168 | return nil, fmt.Errorf("identity: read invite: %w", err) | ||
| 169 | } | ||
| 170 | a.Created = time.Unix(created, 0).UTC() | ||
| 171 | return &a, nil | ||
| 172 | } | ||
| 173 | |||
| 174 | // AcceptInvite consumes an enrollment token and attaches the first passkey. The | ||
| 175 | // conditional update and the credential insert are one transaction, so two | ||
| 176 | // browsers racing on the same link cannot both claim the account. | ||
| 177 | func (s *Store) AcceptInvite(token string, cred Credential, actor string) (*Account, error) { | ||
| 178 | if err := validateCredential(cred); err != nil { | ||
| 179 | return nil, err | ||
| 180 | } | ||
| 181 | // Resolve once for the audit line; the transaction checks everything again. | ||
| 182 | account, err := s.InviteAccount(token) | ||
| 183 | if err != nil { | ||
| 184 | return nil, err | ||
| 185 | } | ||
| 186 | token = strings.TrimSpace(token) | ||
| 187 | now := time.Now().UTC() | ||
| 188 | accountID := account.ID | ||
| 189 | err = s.mutate("identity.credential-add", actor, accountID, "invite", func(tx *sql.Tx) error { | ||
| 190 | var userID string | ||
| 191 | var expires int64 | ||
| 192 | var used sql.NullInt64 | ||
| 193 | err := tx.QueryRow(` | ||
| 194 | SELECT i.user_id, i.expires, i.used_at | ||
| 195 | FROM user_invites i JOIN users u ON u.id = i.user_id | ||
| 196 | WHERE i.token_hash = ? AND u.status = 'active'`, hashToken(token)). | ||
| 197 | Scan(&userID, &expires, &used) | ||
| 198 | if errors.Is(err, sql.ErrNoRows) { | ||
| 199 | return ErrInviteInvalid | ||
| 200 | } | ||
| 201 | if err != nil { | ||
| 202 | return fmt.Errorf("identity: read invite: %w", err) | ||
| 203 | } | ||
| 204 | if used.Valid || expires <= now.Unix() { | ||
| 205 | return ErrInviteInvalid | ||
| 206 | } | ||
| 207 | res, err := tx.Exec(`UPDATE user_invites SET used_at=? WHERE token_hash=? AND used_at IS NULL`, now.Unix(), hashToken(token)) | ||
| 208 | if err != nil { | ||
| 209 | return fmt.Errorf("identity: consume invite: %w", err) | ||
| 210 | } | ||
| 211 | n, err := res.RowsAffected() | ||
| 212 | if err != nil { | ||
| 213 | return err | ||
| 214 | } | ||
| 215 | if n != 1 { | ||
| 216 | return ErrInviteInvalid | ||
| 217 | } | ||
| 218 | // A second live link for the same account must not survive the first | ||
| 219 | // successful enrollment. | ||
| 220 | if _, err := tx.Exec(`UPDATE user_invites SET used_at=? WHERE user_id=? AND used_at IS NULL`, now.Unix(), userID); err != nil { | ||
| 221 | return fmt.Errorf("identity: close sibling invites: %w", err) | ||
| 222 | } | ||
| 223 | if err := insertCredential(tx, userID, cred, now); err != nil { | ||
| 224 | return err | ||
| 225 | } | ||
| 226 | accountID = userID | ||
| 227 | return nil | ||
| 228 | }) | ||
| 229 | if err != nil { | ||
| 230 | return nil, err | ||
| 231 | } | ||
| 232 | return s.Find(accountID) | ||
| 233 | } | ||
| 234 | |||
| 235 | // AddCredential attaches another passkey to an account that is already logged | ||
| 236 | // in or already has an SSH key. | ||
| 237 | func (s *Store) AddCredential(idOrName string, cred Credential, actor string) error { | ||
| 238 | if err := validateCredential(cred); err != nil { | ||
| 239 | return err | ||
| 240 | } | ||
| 241 | now := time.Now().UTC() | ||
| 242 | return s.mutate("identity.credential-add", actor, idOrName, strings.TrimSpace(cred.Label), func(tx *sql.Tx) error { | ||
| 243 | a, err := findTx(tx, idOrName) | ||
| 244 | if err != nil { | ||
| 245 | return err | ||
| 246 | } | ||
| 247 | if !a.Active() { | ||
| 248 | return fmt.Errorf("identity: %s is retired", a.Name) | ||
| 249 | } | ||
| 250 | return insertCredential(tx, a.ID, cred, now) | ||
| 251 | }) | ||
| 252 | } | ||
| 253 | |||
| 254 | // Credentials lists an account's passkeys. Retired accounts are included so the | ||
| 255 | // operator can still see what was registered. | ||
| 256 | func (s *Store) Credentials(idOrName string) ([]Credential, error) { | ||
| 257 | a, err := s.Find(idOrName) | ||
| 258 | if err != nil { | ||
| 259 | return nil, err | ||
| 260 | } | ||
| 261 | return s.credentialsFor(a.ID) | ||
| 262 | } | ||
| 263 | |||
| 264 | // FindCredential resolves a credential id to its account. A retired account's | ||
| 265 | // credential behaves as if it no longer exists. | ||
| 266 | func (s *Store) FindCredential(credentialID []byte) (*Credential, *Account, error) { | ||
| 267 | cred, accountID, err := s.credentialByID(credentialID) | ||
| 268 | if err != nil { | ||
| 269 | return nil, nil, err | ||
| 270 | } | ||
| 271 | a, err := s.Find(accountID) | ||
| 272 | if err != nil || !a.Active() { | ||
| 273 | return nil, nil, ErrCredentialNotFound | ||
| 274 | } | ||
| 275 | return cred, a, nil | ||
| 276 | } | ||
| 277 | |||
| 278 | // UpdateCredential records an assertion counter and the time the key was last | ||
| 279 | // used. Counter policy belongs to the ceremony: this layer stores what it is | ||
| 280 | // given so an authenticator that always reports zero is not locked out. | ||
| 281 | func (s *Store) UpdateCredential(credentialID []byte, signCount uint32, lastUsed time.Time) error { | ||
| 282 | if len(credentialID) == 0 { | ||
| 283 | return ErrCredentialNotFound | ||
| 284 | } | ||
| 285 | res, err := s.db.Exec(`UPDATE user_credentials SET sign_count=?, last_used=? WHERE credential_id=?`, | ||
| 286 | int64(signCount), unixOrZero(lastUsed), credentialIDString(credentialID)) | ||
| 287 | if err != nil { | ||
| 288 | return fmt.Errorf("identity: update passkey: %w", err) | ||
| 289 | } | ||
| 290 | n, err := res.RowsAffected() | ||
| 291 | if err != nil { | ||
| 292 | return err | ||
| 293 | } | ||
| 294 | if n == 0 { | ||
| 295 | return ErrCredentialNotFound | ||
| 296 | } | ||
| 297 | return nil | ||
| 298 | } | ||
| 299 | |||
| 300 | // RemoveCredential revokes one passkey. Sessions created by that passkey are | ||
| 301 | // removed by the foreign key in sessions. | ||
| 302 | func (s *Store) RemoveCredential(idOrName string, credentialID []byte, actor string) error { | ||
| 303 | if len(credentialID) == 0 { | ||
| 304 | return ErrCredentialNotFound | ||
| 305 | } | ||
| 306 | return s.mutate("identity.credential-remove", actor, idOrName, credentialIDString(credentialID), func(tx *sql.Tx) error { | ||
| 307 | a, err := findTx(tx, idOrName) | ||
| 308 | if err != nil { | ||
| 309 | return err | ||
| 310 | } | ||
| 311 | res, err := tx.Exec(`DELETE FROM user_credentials WHERE credential_id=? AND user_id=?`, | ||
| 312 | credentialIDString(credentialID), a.ID) | ||
| 313 | if err != nil { | ||
| 314 | return fmt.Errorf("identity: remove passkey: %w", err) | ||
| 315 | } | ||
| 316 | n, err := res.RowsAffected() | ||
| 317 | if err != nil { | ||
| 318 | return err | ||
| 319 | } | ||
| 320 | if n == 0 { | ||
| 321 | return ErrCredentialNotFound | ||
| 322 | } | ||
| 323 | return nil | ||
| 324 | }) | ||
| 325 | } | ||
| 326 | |||
| 327 | // ---------- internal ---------- | ||
| 328 | |||
| 329 | func inviteTTL(ttl time.Duration) time.Duration { | ||
| 330 | if ttl <= 0 { | ||
| 331 | return DefaultInviteTTL | ||
| 332 | } | ||
| 333 | return ttl | ||
| 334 | } | ||
| 335 | |||
| 336 | func newInviteToken() (token, hash string, err error) { | ||
| 337 | b := make([]byte, inviteTokenBytes) | ||
| 338 | if _, err := rand.Read(b); err != nil { | ||
| 339 | return "", "", fmt.Errorf("identity: invite token: %w", err) | ||
| 340 | } | ||
| 341 | token = base64.RawURLEncoding.EncodeToString(b) | ||
| 342 | return token, hashToken(token), nil | ||
| 343 | } | ||
| 344 | |||
| 345 | func hashToken(token string) string { | ||
| 346 | sum := sha256.Sum256([]byte(token)) | ||
| 347 | return hex.EncodeToString(sum[:]) | ||
| 348 | } | ||
| 349 | |||
| 350 | func validateCredential(c Credential) error { | ||
| 351 | switch { | ||
| 352 | case len(c.ID) == 0: | ||
| 353 | return errors.New("identity: passkey id is empty") | ||
| 354 | case len(c.ID) > 2048: | ||
| 355 | return errors.New("identity: passkey id is too long") | ||
| 356 | case len(c.PublicKey) == 0: | ||
| 357 | return errors.New("identity: passkey public key is empty") | ||
| 358 | case len(c.PublicKey) > 8192: | ||
| 359 | return errors.New("identity: passkey public key is too long") | ||
| 360 | case len(c.Authenticator.AAGUID) > 256: | ||
| 361 | return errors.New("identity: passkey AAGUID is too long") | ||
| 362 | } | ||
| 363 | return nil | ||
| 364 | } | ||
| 365 | |||
| 366 | func insertCredential(tx *sql.Tx, accountID string, cred Credential, now time.Time) error { | ||
| 367 | id := credentialIDString(cred.ID) | ||
| 368 | var existing string | ||
| 369 | err := tx.QueryRow(`SELECT user_id FROM user_credentials WHERE credential_id=?`, id).Scan(&existing) | ||
| 370 | if err == nil { | ||
| 371 | return errors.New("identity: that passkey is already registered") | ||
| 372 | } | ||
| 373 | if !errors.Is(err, sql.ErrNoRows) { | ||
| 374 | return fmt.Errorf("identity: read passkey: %w", err) | ||
| 375 | } | ||
| 376 | transports, err := json.Marshal(cred.Transport) | ||
| 377 | if err != nil { | ||
| 378 | return fmt.Errorf("identity: passkey transports: %w", err) | ||
| 379 | } | ||
| 380 | created := cred.Created | ||
| 381 | if created.IsZero() { | ||
| 382 | created = now | ||
| 383 | } | ||
| 384 | _, err = tx.Exec(`INSERT INTO user_credentials( | ||
| 385 | credential_id, user_id, public_key, attestation_type, transports, flags, aaguid, | ||
| 386 | sign_count, clone_warning, attachment, label, created, last_used) | ||
| 387 | VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?)`, | ||
| 388 | id, accountID, cred.PublicKey, cred.AttestationType, string(transports), | ||
| 389 | flagsValue(cred.Flags), cred.Authenticator.AAGUID, int64(cred.Authenticator.SignCount), | ||
| 390 | boolValue(cred.Authenticator.CloneWarning), cred.Authenticator.Attachment, | ||
| 391 | strings.TrimSpace(cred.Label), created.Unix(), unixOrZero(cred.LastUsed)) | ||
| 392 | if err != nil { | ||
| 393 | return fmt.Errorf("identity: add passkey: %w", err) | ||
| 394 | } | ||
| 395 | return nil | ||
| 396 | } | ||
| 397 | |||
| 398 | const credentialColumns = `credential_id, public_key, attestation_type, transports, flags, aaguid, | ||
| 399 | sign_count, clone_warning, attachment, label, created, last_used` | ||
| 400 | |||
| 401 | func scanCredential(scan func(dest ...any) error) (Credential, error) { | ||
| 402 | var ( | ||
| 403 | cred Credential | ||
| 404 | id, transports string | ||
| 405 | flags int64 | ||
| 406 | aaguid []byte | ||
| 407 | signCount int64 | ||
| 408 | cloneWarning int64 | ||
| 409 | created, last int64 | ||
| 410 | credentialLabel string | ||
| 411 | ) | ||
| 412 | if err := scan(&id, &cred.PublicKey, &cred.AttestationType, &transports, &flags, &aaguid, | ||
| 413 | &signCount, &cloneWarning, &cred.Authenticator.Attachment, &credentialLabel, &created, &last); err != nil { | ||
| 414 | return Credential{}, err | ||
| 415 | } | ||
| 416 | rawID, err := ParseCredentialID(id) | ||
| 417 | if err != nil { | ||
| 418 | return Credential{}, fmt.Errorf("identity: stored passkey id: %w", err) | ||
| 419 | } | ||
| 420 | if transports != "" { | ||
| 421 | if err := json.Unmarshal([]byte(transports), &cred.Transport); err != nil { | ||
| 422 | return Credential{}, fmt.Errorf("identity: stored passkey transports: %w", err) | ||
| 423 | } | ||
| 424 | } | ||
| 425 | cred.ID = rawID | ||
| 426 | cred.Flags = flagsFrom(flags) | ||
| 427 | cred.Authenticator.AAGUID = aaguid | ||
| 428 | cred.Authenticator.SignCount = uint32(signCount) | ||
| 429 | cred.Authenticator.CloneWarning = cloneWarning != 0 | ||
| 430 | cred.Label = credentialLabel | ||
| 431 | cred.Created = time.Unix(created, 0).UTC() | ||
| 432 | if last > 0 { | ||
| 433 | cred.LastUsed = time.Unix(last, 0).UTC() | ||
| 434 | } | ||
| 435 | return cred, nil | ||
| 436 | } | ||
| 437 | |||
| 438 | func (s *Store) credentialsFor(accountID string) ([]Credential, error) { | ||
| 439 | rows, err := s.db.Query(`SELECT `+credentialColumns+` FROM user_credentials WHERE user_id=? ORDER BY created, credential_id`, accountID) | ||
| 440 | if err != nil { | ||
| 441 | return nil, fmt.Errorf("identity: read passkeys: %w", err) | ||
| 442 | } | ||
| 443 | defer rows.Close() | ||
| 444 | var out []Credential | ||
| 445 | for rows.Next() { | ||
| 446 | cred, err := scanCredential(rows.Scan) | ||
| 447 | if err != nil { | ||
| 448 | return nil, fmt.Errorf("identity: read passkeys: %w", err) | ||
| 449 | } | ||
| 450 | out = append(out, cred) | ||
| 451 | } | ||
| 452 | if err := rows.Err(); err != nil { | ||
| 453 | return nil, err | ||
| 454 | } | ||
| 455 | sort.Slice(out, func(i, j int) bool { return out[i].Created.Before(out[j].Created) }) | ||
| 456 | return out, nil | ||
| 457 | } | ||
| 458 | |||
| 459 | func (s *Store) credentialByID(credentialID []byte) (*Credential, string, error) { | ||
| 460 | if len(credentialID) == 0 { | ||
| 461 | return nil, "", ErrCredentialNotFound | ||
| 462 | } | ||
| 463 | var accountID string | ||
| 464 | var cred Credential | ||
| 465 | // Scan the credential columns and the owner in one row, so a credential | ||
| 466 | // cannot disappear between two queries. | ||
| 467 | row := s.db.QueryRow(`SELECT `+credentialColumns+`, user_id FROM user_credentials WHERE credential_id=?`, | ||
| 468 | credentialIDString(credentialID)) | ||
| 469 | var ( | ||
| 470 | id, transports, label string | ||
| 471 | flags int64 | ||
| 472 | aaguid []byte | ||
| 473 | signCount int64 | ||
| 474 | cloneWarning int64 | ||
| 475 | created, last int64 | ||
| 476 | ) | ||
| 477 | err := row.Scan(&id, &cred.PublicKey, &cred.AttestationType, &transports, &flags, &aaguid, | ||
| 478 | &signCount, &cloneWarning, &cred.Authenticator.Attachment, &label, &created, &last, &accountID) | ||
| 479 | if errors.Is(err, sql.ErrNoRows) { | ||
| 480 | return nil, "", ErrCredentialNotFound | ||
| 481 | } | ||
| 482 | if err != nil { | ||
| 483 | return nil, "", fmt.Errorf("identity: read passkey: %w", err) | ||
| 484 | } | ||
| 485 | rawID, err := ParseCredentialID(id) | ||
| 486 | if err != nil { | ||
| 487 | return nil, "", fmt.Errorf("identity: stored passkey id: %w", err) | ||
| 488 | } | ||
| 489 | if transports != "" { | ||
| 490 | if err := json.Unmarshal([]byte(transports), &cred.Transport); err != nil { | ||
| 491 | return nil, "", fmt.Errorf("identity: stored passkey transports: %w", err) | ||
| 492 | } | ||
| 493 | } | ||
| 494 | cred.ID = rawID | ||
| 495 | cred.Flags = flagsFrom(flags) | ||
| 496 | cred.Authenticator.AAGUID = aaguid | ||
| 497 | cred.Authenticator.SignCount = uint32(signCount) | ||
| 498 | cred.Authenticator.CloneWarning = cloneWarning != 0 | ||
| 499 | cred.Label = label | ||
| 500 | cred.Created = time.Unix(created, 0).UTC() | ||
| 501 | if last > 0 { | ||
| 502 | cred.LastUsed = time.Unix(last, 0).UTC() | ||
| 503 | } | ||
| 504 | return &cred, accountID, nil | ||
| 505 | } | ||
| 506 | |||
| 507 | // CredentialIDString renders a credential id the way the CLI and URLs carry it. | ||
| 508 | func CredentialIDString(id []byte) string { return credentialIDString(id) } | ||
| 509 | |||
| 510 | func credentialIDString(id []byte) string { | ||
| 511 | return base64.RawURLEncoding.EncodeToString(id) | ||
| 512 | } | ||
| 513 | |||
| 514 | // ParseCredentialID accepts the unpadded base64url form Vole prints, and the | ||
| 515 | // padded form people paste from other tools. | ||
| 516 | func ParseCredentialID(s string) ([]byte, error) { | ||
| 517 | s = strings.TrimSpace(s) | ||
| 518 | if s == "" { | ||
| 519 | return nil, errors.New("empty credential id") | ||
| 520 | } | ||
| 521 | if b, err := base64.RawURLEncoding.DecodeString(s); err == nil { | ||
| 522 | return b, nil | ||
| 523 | } | ||
| 524 | b, err := base64.URLEncoding.DecodeString(s) | ||
| 525 | if err != nil { | ||
| 526 | return nil, errors.New("credential id is not base64url") | ||
| 527 | } | ||
| 528 | return b, nil | ||
| 529 | } | ||
| 530 | |||
| 531 | const ( | ||
| 532 | flagUserPresent = 1 << iota | ||
| 533 | flagUserVerified | ||
| 534 | flagBackupEligible | ||
| 535 | flagBackupState | ||
| 536 | ) | ||
| 537 | |||
| 538 | func flagsValue(f CredentialFlags) int64 { | ||
| 539 | var v int64 | ||
| 540 | if f.UserPresent { | ||
| 541 | v |= flagUserPresent | ||
| 542 | } | ||
| 543 | if f.UserVerified { | ||
| 544 | v |= flagUserVerified | ||
| 545 | } | ||
| 546 | if f.BackupEligible { | ||
| 547 | v |= flagBackupEligible | ||
| 548 | } | ||
| 549 | if f.BackupState { | ||
| 550 | v |= flagBackupState | ||
| 551 | } | ||
| 552 | return v | ||
| 553 | } | ||
| 554 | |||
| 555 | func flagsFrom(v int64) CredentialFlags { | ||
| 556 | return CredentialFlags{ | ||
| 557 | UserPresent: v&flagUserPresent != 0, | ||
| 558 | UserVerified: v&flagUserVerified != 0, | ||
| 559 | BackupEligible: v&flagBackupEligible != 0, | ||
| 560 | BackupState: v&flagBackupState != 0, | ||
| 561 | } | ||
| 562 | } | ||
| 563 | |||
| 564 | func boolValue(b bool) int64 { | ||
| 565 | if b { | ||
| 566 | return 1 | ||
| 567 | } | ||
| 568 | return 0 | ||
| 569 | } | ||
| 570 | |||
| 571 | func unixOrZero(t time.Time) int64 { | ||
| 572 | if t.IsZero() { | ||
| 573 | return 0 | ||
| 574 | } | ||
| 575 | return t.Unix() | ||
| 576 | } | ||