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Specify the fields API #668

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Specify the fields API #668

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c8b28c8
Specify the fields API
cbiesinger Oct 28, 2024
5751d6c
Address comments from TallTed
cbiesinger Oct 29, 2024
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npm comments
cbiesinger Nov 7, 2024
c23d5d5
Merge remote-tracking branch 'origin' into fields
cbiesinger Nov 19, 2024
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TallTed oxford commas
cbiesinger Nov 19, 2024
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Merge remote-tracking branch 'origin' into fields
cbiesinger Dec 4, 2024
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allow UAs to not show the permission prompt
cbiesinger Dec 4, 2024
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cbiesinger Dec 5, 2024
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93 changes: 71 additions & 22 deletions spec/index.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -662,6 +662,7 @@ dictionary IdentityProviderRequestOptions : IdentityProviderConfig {
USVString nonce;
DOMString loginHint;
DOMString domainHint;
sequence<USVString> fields;
any params;
};
</xmp>
Expand Down Expand Up @@ -888,7 +889,7 @@ the exception thrown.
1. For each |acc| in |accountsList|:
1. If |acc| is [=eligible for auto reauthentication=] given |provider|, and |globalObject|,
set |registeredAccount| to |acc| and increase |numRegisteredAccounts| by 1.
1. Let |permission|, |disclosureTextShown|, and |isAutoSelected| be set to false.
1. Let |permission|, |permissionRequested|, and |isAutoSelected| be set to false.
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1. If |mediation| is not "{{CredentialMediationRequirement/required}}", |requiresUserMediation|
is false, and |numRegisteredAccounts| is equal to 1:
1. Set |account| to |registeredAccount| and |permission| to true. When doing this, the user
Expand All @@ -898,30 +899,36 @@ the exception thrown.
1. Otherwise, if |mediation| is "{{CredentialMediationRequirement/silent}}", return (failure, true).
1. Otherwise, if |accountsList|'s size is 1:
1. Set |account| to |accountsList|[0].
1. If [=compute the connection status=] of |account|, |provider| and |globalObject| returns
1. If [=compute the connection status=] of |account|, |provider|, and |globalObject| returns
[=compute the connection status/connected=], show a dialog to request user permission to sign
in via |account|, and set the result in |permission|. The user agent MAY use |options|'s
{{IdentityCredentialRequestOptions/context}} and |options|'s
{{IdentityCredentialRequestOptions/mode}} to customize the dialog.
1. Otherwise, let |permission| be the result of running [=request permission to sign-up=]
algorithm with |account|, |config|, |provider|, and |globalObject|. Also set
|disclosureTextShown| to true.
|permissionRequested| to true if the user agent [=supports showing a permission prompt=].
1. Otherwise:
1. Set |account| to the result of running the [=select an account=] from the
|accountsList|.
1. If |account| is failure, return (failure, true).
1. If [=compute the connection status=] of |account|, |provider| and |globalObject| is
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[=compute the connection status/connected=], set |permission| to true.
1. Otherwise, if |provider|.{{IdentityProviderRequestOptions/fields}} is [=list/empty=],
[=create a connection between the RP and the IdP account=] with |provider|, |account|,
and |globalObject|, and set |permission| to |true|.

Note: The connection would normally be created in the [=request permission to sign-up=]
algorithm, but we do not want to show an extra dialog in this case.
1. Otherwise:
1. Let |permission| be the result of running the [=request permission to sign-up=]
algorithm with |account|, |config|, |provider|, and |globalObject|.
1. Set |disclosureTextShown| to true.
1. Set |permissionRequested| to true.
1. Wait until the [=user agent=]'s dialogs requesting for user choice or permission to be
closed, if any are created in the previous steps.
1. Assert: |account| is not null.
1. If |permission| is false, then return (failure, true).
1. Let |credential| be the result of running the [=fetch an identity assertion=] algorithm with
|account|'s {{IdentityProviderAccount/id}}, |disclosureTextShown|, |isAutoSelected|,
|account|'s {{IdentityProviderAccount/id}}, |permissionRequested|, |isAutoSelected|,
|provider|, |config|, and |globalObject|.
1. Return |credential|.
</div>
Expand Down Expand Up @@ -1229,18 +1236,37 @@ the token that will be provided to the [=RP=].

<div algorithm>
To <dfn>fetch an identity assertion</dfn> given a {{USVString}}
|accountId|, a boolean |disclosureTextShown|, a boolean |isAutoSelected|, an
|accountId|, a boolean |permissionRequested|, a boolean |isAutoSelected|, an
{{IdentityProviderRequestOptions}} |provider|, an {{IdentityProviderAPIConfig}} |config|,
and |globalObject|, run the following steps. This returns an {{IdentityCredential}} or failure.
1. Let |tokenUrl| be the result of [=computing the manifest URL=] given |provider|,
|config|["{{IdentityProviderAPIConfig/id_assertion_endpoint}}"], and |globalObject|.
1. If |tokenUrl| is failure, return failure.
1. Let |disclosureShownFor| and |fields| be the empty list.
1. If |permissionRequested| is true:
1. Set |fields| to |provider|.{{IdentityProviderRequestOptions/fields}}.
1. Set |disclosureShownFor| to the subset of strings in |fields| that are
in the [=list of recognized fields=].
1. Let |list| be a list with the following entries:
1. ("client_id", |provider|'s {{IdentityProviderConfig/clientId}})
1. ("nonce", |provider|'s {{IdentityProviderRequestOptions/nonce}})
1. ("account_id", |accountId|)
1. ("disclosure_text_shown", |disclosureTextShown|)
1. ("is_auto_selected", |isAutoSelected|)
1. If |fields| is not empty:
1. Let |fieldsString| be the entries of |fields| concatenated with a comma ("`,`")
between elements.
1. Append ("fields", |fieldsString|) to |list|.
1. If |disclosureShownFor| is not empty:
1. Let |disclosureString| be the entries of |disclosureShownFor| concatenated
with a comma ("`,`") between elements.
1. Append ("disclosure_shown_for", |disclosureString|) to |list|.
1. If |disclosureShownFor| contains all of "name", "email", and "picture", append
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("disclosure_text_shown", true) to |list|.

Note: This parameter exists for backwards compatibility with older identity providers
that do not yet support `disclosure_shown_for`. At the time, the disclosure text,
if shown, always included name, email, and picture. Newer identity providers should
instead check `disclosure_shown_for`.
1. If |provider|'s {{IdentityProviderRequestOptions/params}} is not empty:
1. Let |json| be the result of [=serializing a JavaScript value to a JSON string=]
with |provider|'s {{IdentityProviderRequestOptions/params}}.
Expand Down Expand Up @@ -1338,26 +1364,43 @@ The <a>request permission to sign-up</a> algorithm fetches the [=client metadata
waits for the user to grant permission to use the given account, and returns whether the user
granted permission or not.

<div algorithm>
<div algorithm="request permission to sign-up">
To <dfn>request permission to sign-up</dfn> the user with a given an {{IdentityProviderAccount}} |account|,
an {{IdentityProviderAPIConfig}} |config|, an {{IdentityProviderRequestOptions}} |provider|, and a
|globalObject|, run the following steps. This returns a boolean.
1. Assert: These steps are running [=in parallel=].
1. Let |metadata| be the result of running [=fetch the client metadata=] with |config|,
|provider|, and |globalObject|.
1. Let |fields| be |provider|.{{IdentityProviderRequestOptions/fields}} or, if not present,
`["name", "email", "picture"]`.

Note: Omitted is different from an explicitly present empty list.
1. Let |metadata| be null.
1. If |fields| is not [=list/empty=], set |metadata| to the result of running [=fetch the client
metadata=] with |config|, |provider|, and |globalObject|.
1. Prompt the user to gather explicit intent to create an account. The user agent MAY use the
{{IdentityProviderBranding}} to inform the style choices of its UI. Additionally:
1. If |metadata| is not failure, |metadata|["{{IdentityProviderClientMetadata/privacy_policy_url}}"]
is defined and the |provider|'s {{IdentityProviderConfig/clientId}} is not in the list of
|account|["{{IdentityProviderAccount/approved_clients}}"], then the user agent MUST display
the |metadata|["{{IdentityProviderClientMetadata/privacy_policy_url}}"] link.
1. If |metadata| is not failure, |metadata|["{{IdentityProviderClientMetadata/terms_of_service_url}}"]
is defined, and the |provider|'s {{IdentityProviderConfig/clientId}} is not in the list of
|account|["{{IdentityProviderAccount/approved_clients}}"], then the user agent MUST display
the |metadata|["{{IdentityProviderClientMetadata/terms_of_service_url}}"] link.
1. The user agent MAY use the
{{IdentityCredentialRequestOptions/context}} and |options|'s
{{IdentityCredentialRequestOptions/mode}} to customize the dialog shown.
1. The user agent SHOULD <dfn>support showing a permission prompt</dfn> as follows.
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1. If |fields| is not [=list/empty=] and the user agent [=supports showing a permission prompt=]:
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1. If |metadata| is not failure, |metadata|["{{IdentityProviderClientMetadata/privacy_policy_url}}"]
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is defined, and the |provider|'s {{IdentityProviderConfig/clientId}} is not in the list of
|account|["{{IdentityProviderAccount/approved_clients}}"], then the user agent MUST display
the |metadata|["{{IdentityProviderClientMetadata/privacy_policy_url}}"] link.
1. If |metadata| is not failure, |metadata|["{{IdentityProviderClientMetadata/terms_of_service_url}}"]
is defined, and the |provider|'s {{IdentityProviderConfig/clientId}} is not in the list of
|account|["{{IdentityProviderAccount/approved_clients}}"], then the user agent MUST display
the |metadata|["{{IdentityProviderClientMetadata/terms_of_service_url}}"] link.
1. The user agent MUST prompt the user for permission to share the data in |fields|,
interpreting the strings in the <dfn>list of recognized fields</dfn> as follows:
: `"name"`
:: The user's name as given in {{IdentityProviderAccount}}.{{IdentityProviderAccount/name}}.
: `"email"`
:: The user's email address as given in {{IdentityProviderAccount}}.{{IdentityProviderAccount/email}}.
: `"picture"`
:: The user's profile picture as given in {{IdentityProviderAccount}}.{{IdentityProviderAccount/picture}}.

Any other string is ignored for forwards compatibility.
1. The user agent MAY use the
{{IdentityCredentialRequestOptions/context}} and |options|'s
{{IdentityCredentialRequestOptions/mode}} to customize the dialog shown.
1. If the user does not grant permission, return false.
1. Return true.
</div>
Expand Down Expand Up @@ -2024,6 +2067,12 @@ It will also contain the following parameters in the request body `application/x
with rp.example"), used by the [=request permission to sign-up=] algorithm for new users. It
is used as an assurance by the user agent to the [=IDP=] that it has indeed shown the terms
of service and privacy policy to the user in the cases where it is required to do so.
: <dfn>fields</dfn>
:: The list of fields that the [=RP=] has requested in {{IdentityProviderRequestOptions/fields}}.
: <dfn>disclosure_shown_for</dfn>
:: The list of fields that the user was prompted for. This can be a subset of
{{IdentityProviderRequestOptions/fields}} if a field is requested that is not in the [=list
of recognized fields=].
</dl>

For example:
Expand All @@ -2036,7 +2085,7 @@ Origin: https://rp.example/
Content-Type: application/x-www-form-urlencoded
Cookie: 0x23223
Sec-Fetch-Dest: webidentity
account_id=123&client_id=client1234&nonce=Ct60bD&disclosure_text_shown=true
account_id=123&client_id=client1234&nonce=Ct60bD&disclosure_text_shown=true&fields=name,email,picture&disclosure_shown_for=name,email,picture
```
</div>

Expand Down
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