auth

package
v0.4.0-rc.7 Latest Latest
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Published: Jun 24, 2026 License: AGPL-3.0 Imports: 12 Imported by: 0

Documentation

Index

Constants

View Source
const (
	AccessTokenDuration  = 15 * time.Minute
	RefreshTokenDuration = 7 * 24 * time.Hour
)
View Source
const MinPasswordScore = 3

MinPasswordScore is the minimum acceptable zxcvbn strength score (0–4) for a user-chosen password. The frontend meter enforces the same threshold via @zxcvbn-ts, so "acceptable" means the same thing on both sides and a password the meter shows as green is one the backend will accept. 3 ("safely unguessable") is the floor for an internet-facing login.

Variables

View Source
var ErrWeakPassword = errors.New("password is too weak: choose a longer or less predictable password")

ErrWeakPassword is returned by ValidatePasswordStrength for passwords below MinPasswordScore.

Functions

func AgentIDFromContext

func AgentIDFromContext(ctx interface{ Value(any) any }) uuid.UUID

AgentIDFromContext returns the agent UUID from context, set by AgentMiddleware.

func AgentMiddleware

func AgentMiddleware(jwtSecret string) func(http.Handler) http.Handler

AgentMiddleware validates the agent JWT Bearer token and injects AgentClaims into context.

func AudienceContains

func AudienceContains(aud jwt.ClaimStrings, target string) bool

AudienceContains reports whether `target` is one of the audience values in the claim. Helper for the MCP endpoint's audience check.

func CheckPassword

func CheckPassword(hash, password string) error

CheckPassword compares a plaintext password with a bcrypt hash. Returns nil on success, error on mismatch.

func GenerateTempPassword added in v0.4.0

func GenerateTempPassword() (string, error)

GenerateTempPassword returns a random, high-entropy temporary password (lowercase base32, 24 chars). Used for admin-provisioned users and the `airlock auth reset` break-glass; the recipient is forced to change it or register a passkey on first login. It comfortably clears MinPasswordScore.

func HashPassword

func HashPassword(password string) (string, error)

HashPassword hashes a plaintext password using bcrypt.

func IssueAgentToken

func IssueAgentToken(secret string, agentID uuid.UUID) (string, error)

IssueAgentToken creates a signed JWT for an agent container (100-year expiry).

func IssueOAuthAccessToken added in v0.4.0

func IssueOAuthAccessToken(secret string, userID uuid.UUID, email, tenantRole, clientID, scope, audience string) (string, error)

IssueOAuthAccessToken mints a JWT with the OAuth-side claims set (ClientID + Scope + Audience). 15-min lifetime, same HS256 secret as the web-login tokens.

This is the SOLE call site in the codebase that sets ClientID. Anything else producing a JWT must not — the MCP endpoint uses ClientID's presence to decide whether the audience check should run. The web-login IssueToken / IssueTokenWithDuration paths deliberately keep ClientID empty.

audience is the canonical resource URL, e.g. "https://airlock.example.com/api/agent/<uuid>/mcp". scope is the space-delimited scope string ("mcp" in v1).

func IssueRefreshToken

func IssueRefreshToken(secret string, userID uuid.UUID, email, displayName, tenantRole string, mustChangePassword bool) (string, error)

IssueRefreshToken creates a signed refresh token (7 days).

func IssueToken

func IssueToken(secret string, userID uuid.UUID, email, displayName, tenantRole string, mustChangePassword bool) (string, error)

IssueToken creates a signed access token (15 min).

func IssueTokenWithDuration

func IssueTokenWithDuration(secret string, userID uuid.UUID, email, displayName, tenantRole string, mustChangePassword bool, duration time.Duration) (string, error)

IssueTokenWithDuration creates a signed token with a custom duration.

func Middleware

func Middleware(jwtSecret string) func(http.Handler) http.Handler

Middleware validates the JWT Bearer token and injects claims into context. It returns 401 for missing, invalid, or expired tokens.

func RequireTenantRole

func RequireTenantRole(minRole Role) func(http.Handler) http.Handler

RequireTenantRole returns middleware that checks the user has at least the given role. Uses hierarchy: admin > manager > user. Returns 403 if not authorized.

func ScopeContains added in v0.4.0

func ScopeContains(scope, required string) bool

ScopeContains reports whether `required` is present in a space-delimited scope string. OAuth 2.0 scopes are case-sensitive (RFC 6749 §3.3); we match exactly.

func UserIDFromContext

func UserIDFromContext(ctx context.Context) uuid.UUID

UserIDFromContext returns the user ID from the JWT claims.

func ValidatePasswordStrength added in v0.4.0

func ValidatePasswordStrength(password string, userInputs []string) error

ValidatePasswordStrength rejects weak passwords using zxcvbn. userInputs are context strings (email, display name) that count against the score when the password contains them. Returns nil when the password is strong enough.

Types

type AgentClaims

type AgentClaims struct {
	jwt.RegisteredClaims
	AgentID string `json:"agent_id"`
}

AgentClaims are the JWT claims for agent tokens.

func ValidateAgentToken

func ValidateAgentToken(secret, tokenString string) (*AgentClaims, error)

ValidateAgentToken validates a JWT and returns the agent claims. Rejects tokens that do not have an AgentID claim.

type Claims

type Claims struct {
	jwt.RegisteredClaims
	Email string `json:"email"`
	// DisplayName is the user's display name, carried so proxied agent
	// requests can forward it (X-User-Name) without a DB lookup. Display
	// claim only — never used for authorization. Empty for OAuth/MCP tokens.
	DisplayName string `json:"name,omitempty"`
	TenantRole  string `json:"tenant_role"`
	ClientID    string `json:"client_id,omitempty"`
	Scope       string `json:"scope,omitempty"`
	// MustChangePassword mirrors users.must_change_password. When true the
	// /api/v1 secured-account gate restricts the token to the account-securing
	// endpoints until the user sets a strong password or registers a passkey,
	// then receives a fresh token with the flag cleared. Web-login tokens carry
	// the live value at issue; OAuth/MCP tokens never set it.
	MustChangePassword bool `json:"must_change_password,omitempty"`
}

Claims are the JWT claims for Airlock tokens.

ClientID and Scope are populated ONLY by IssueOAuthAccessToken (the MCP server-side OAuth flow). Web-login tokens never carry them — the presence of ClientID is the discriminator the MCP endpoint uses to branch between "OAuth access token, verify aud+scope+client" and "web-login JWT, accept as-is". Anything else in this codebase that sets ClientID would break that discrimination — see the Test_UserJWTHasNoClientID invariant in jwt_test.go.

Audience comes from jwt.RegisteredClaims and binds an OAuth access token to a specific agent's MCP URL (RFC 8707 resource indicators).

func ClaimsFromContext

func ClaimsFromContext(ctx context.Context) *Claims

ClaimsFromContext retrieves the JWT claims from the context.

func ValidateToken

func ValidateToken(secret, tokenString string) (*Claims, error)

ValidateToken validates a JWT and returns the claims.

type Role added in v0.4.0

type Role string

Role is a tenant role — what a user can do in Airlock as a platform, independent of any per-agent access. Mirrors agentsdk.Access (the per-agent axis) so the two gates read the same way.

const (
	RoleAdmin   Role = "admin"
	RoleManager Role = "manager"
	RoleUser    Role = "user"
)

func (Role) AtLeast added in v0.4.0

func (r Role) AtLeast(min Role) bool

AtLeast reports whether r ranks at or above min. An unknown role (including the empty string) ranks below everything.

Directories

Path Synopsis
Package lockout implements per-(email, ip) login throttling for the airlock auth path.
Package lockout implements per-(email, ip) login throttling for the airlock auth path.
Package passkey wraps go-webauthn for airlock's human login.
Package passkey wraps go-webauthn for airlock's human login.

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