authx
AuthX is designed for a scenario in which a **RESOURCE** needs to restrict access to all or part of its functionality. A **CLIENT** app, acting on behalf of a **User** can retreive an OAuth token from AuthX, which can be passed to the **RESOURCE** with an
Last updated a year ago by mike-marcacci .
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This is the TCG auth service. It's named AuthX because it's an "exchange" of sorts, consolidating identities from several upstream authorities into a single identity for downstream clients. AuthX uses the OAuth2 framework in both directions, and adds an authorization layer. Authorization control is based on the simple scopes spec.

Concepts

AuthX is designed for a scenario in which a RESOURCE needs to restrict access to all or part of its functionality. A CLIENT app, acting on behalf of a User can retreive an OAuth token from AuthX, which can be passed to the RESOURCE with any request.

╔══════════════════════════════════════════╗
║                  ┌───────────┐           ║
║                  │ AUTHORITY │           ║
║                  └─────┬─────┘           ║
║▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓│▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓║
║   ┌────────────┐ ┌─────┴─────┐           ║
║   │ Credential ├─┤ Authority │           ║
║   └───┬────────┘ └───────────┘           ║
║   ┌───┴──┐              Authentication   ║
║░░░│ User │░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░║
║   └─┬──┬─┘              ┌──────┐         ║
║     │  └────────────────┤ Role │         ║
║    ┌┴──────┐ ┌────────┐ └──────┘         ║
║    │ Grant ├─┤ Client │                  ║
║    └───────┘ └───┬────┘  Authorization   ║
║▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓│▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓║
║              ┌───┴────┐ ┌──────────┐     ║
║              │ CLIENT ├─┤ RESOURCE │     ║
║              └────────┘ └──────────┘     ║
╚══════════════════════════════════════════╝

User

The user is (obviously) the primary component. It consists of a unique ID and profile information in the format of Portable Contacts. Information in the profile is not verified, and is not directly used by AuthX system for authentication.

Authority

An authority is a mechanism for authentication, and provides the configuration for corresponding units of code called strategies. Several strategies are included by default:

  1. email - use an email address to verify a visitor's identity (most people call this "reset your password")
  2. password - verify your identity with a password (which is protected with bcrypt)
  3. google - connect to one or more Google and Google Apps accounts
  4. onelogin - connect to one or more OneLogin accounts through SAML

Credential

Credentials connect users to authorities. A user can typically have multiple authorities of the same authority (multiple emails, for example).

Client

Clients are downstream applications that uses AuthX for authentication/authorization.

Grant

A user gives a client permission to act on her behalf via a grant.

Role

A role bestows its permissions to every user it includes.

Anatomy of a scope

Scopes are composed of 3 domains, separated by the : character:

AuthX:role.abc:read
|___| |______| |__|
  |      |       |
realm resource  action

Each domain can contain parts, separated by the . character. Domain parts can be /[a-zA-Z0-9_]*/ strings or glob pattern identifiers * or **:

role.abc
role.*
**

AuthX Scopes

AuthX uses its own authorization system to restrict access to its resources. Below are the scopes used by AuthX internally:

AuthX:authority:read.{basic|details}
AuthX:authority:write.{basic|details|*}

AuthX:client.{assigned|*}:read.{basic|secrets|assignments}
AuthX:client.{assigned|*}:write.{basic|secrets|assignments|*}

AuthX:credential.equal.self  :read.{basic|details}
AuthX:credential.equal.lesser:read.{basic|details}
AuthX:credential.equal.*     :read.{basic|details}
AuthX:credential.*    .*     :read.{basic|details}
AuthX:credential.equal.self  :write.{basic|details|*}
AuthX:credential.equal.lesser:write.{basic|details|*}
AuthX:credential.equal.*     :write.{basic|details|*}
AuthX:credential.*    .*     :write.{basic|details|*}

AuthX:grant.assigned    :read.{basic|scopes|secrets}
AuthX:grant.equal.self  :read.{basic|scopes|secrets}
AuthX:grant.equal.lesser:read.{basic|scopes|secrets}
AuthX:grant.equal.*     :read.{basic|scopes|secrets}
AuthX:grant.*    .*     :read.{basic|scopes|secrets}
AuthX:grant.equal.self  :write.{basic|scopes|secrets|*}
AuthX:grant.equal.lesser:write.{basic|scopes|secrets|*}
AuthX:grant.equal.*     :write.{basic|scopes|secrets|*}
AuthX:grant.*    .*     :write.{basic|scopes|secrets|*}

AuthX:role.equal.assigned:read.{basic|scopes|assignments}
AuthX:role.equal.lesser  :read.{basic|scopes|assignments}
AuthX:role.equal.*       :read.{basic|scopes|assignments}
AuthX:role.*    .*       :read.{basic|scopes|assignments}
AuthX:role.equal.assigned:write.{basic|scopes|assignments|*}
AuthX:role.equal.lesser  :write.{basic|scopes|assignments|*}
AuthX:role.equal.*       :write.{basic|scopes|assignments|*}
AuthX:role.*    .*       :write.{basic|scopes|assignments|*}

AuthX:token.assigned    :read.{basic|scopes|secrets}
AuthX:token.equal.self  :read.{basic|scopes|secrets}
AuthX:token.equal.lesser:read.{basic|scopes|secrets}
AuthX:token.equal.*     :read.{basic|scopes|secrets}
AuthX:token.*    .*     :read.{basic|scopes|secrets}
AuthX:token.equal.self  :write.{basic|scopes|secrets|*}
AuthX:token.equal.lesser:write.{basic|scopes|secrets|*}
AuthX:token.equal.*     :write.{basic|scopes|secrets|*}
AuthX:token.*    .*     :write.{basic|scopes|secrets|*}

AuthX:user.equal.self  :read.{basic}
AuthX:user.equal.lesser:read.{basic}
AuthX:user.equal.*     :read.{basic}
AuthX:user.*    .*     :read.{basic}
AuthX:user.equal.self  :write.{basic|*}
AuthX:user.equal.lesser:write.{basic|*}
AuthX:user.equal.*     :write.{basic|*}
AuthX:user.*    .*     :write.{basic|*}

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