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OAUTH3-SPEC
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Update 'README.md'

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AJ ONeal 2017-08-07 20:46:30 +00:00
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README.md
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@ -71,6 +71,16 @@ Just a quick intro to vocabulary that will be explained more thoroughly later on
* **audience** (**aud**) - the service or device that exchanges tokens for goods or services. In the old-world model this is Facebook, Twitter, etc
* **authorized party** (**azp**) - the service or device that uses tokens to accomplish the subject's goals. In the old-world model this is a site that has a "Login with Facebook" button
### Scopes
Scopes are federated schemas. Any issuer may act as the agent of the subject to authorize any azp for any audience. To make this possible scopes are defined as `<<schema>>@<<domain.tld>>` (i.e. dns@oauth3.org) and can be discovered as `https://aud.tld/.well-known/scopes@oauth3.org/<<schema>>@<<domain.tld>>.json`.
Examples of well-known scope-schemas:
* authn@oauth3.org
* domains@oauth3.org
* dns@oauth3.org
## There are 4 potential Identity Delegation styles
The following are just sample UX to show the difference in the styles. Typically, a single UX can encompass all 4 styles.
@ -231,4 +241,41 @@ Example **callback uri** on the azp:
**Step 5**
The UI should be updated with the name and icon specified in the issuer directives, if any.
The UI should be updated with the name and icon specified in the issuer directives, if any.
## OAuth3 Token Issuance, Endpoints, and Process
For an issuer such as smithfam.net the directives must specify that the `authorization_dialog` endpoint is `https://smithfam.net/#/authorization_dialog/`
### First Token Grant / First Login
Once the issuer has been discovered the azp must store any state about the subject or application and construct a url to place in an anchor tag that will either redirect the window to the issuer directly, or open a popup window by using the `_target` attribute.
According to browser policy, `window.open` may not be used asynchronously (no promises or requests), if it is used.
Example **authorization dialog** url (using the example above):
```
https://smithfam.net/#/authorization_dialog/
?response_type=token
&scope=authn@oauth3.org
&state=<<OAUTH3.utils.randomState()>>
&client_uri=azp.tld
&client_id=azp.tld
&subject=jane@smithfam.net
&redirect_uri=<<encodeURIComponent('https://azp.tld/.well-known/oauth3/callback.html')>>
&debug=false
```
NOTE: `redirect_uri` itself may also contain URI-encoded components
In OAuth3 `client_uri` replaces `client_id` and so `client_id` is only necessary for OAuth2 backwards compatibility and for applications that need multiple ids or otherwise require manual registration.
`scope` is optional. Generally speaking scopes should be defined as part of subsequent authorization, not initial authentication.
`subject` is optional, but allows the issuer to skip the step of asking the user for their username / email.
TODO It should also be possible to pass qualifiers for the security requirements of the azp (recency of login, mfa requirements, etc).
### Pre-Authorized Token Grant / Subsequent Logins