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<pre class="metadata">
Title: Protected Audience (formerly FLEDGE)
Shortname: protected-audience
Repository: WICG/turtledove
Inline Github Issues: true
Group: WICG
Status: CG-DRAFT
Level: 1
URL: https://wicg.github.io/turtledove/
Boilerplate: omit conformance, omit feedback-header
Editor: Paul Jensen, Google https://www.google.com/, [email protected]
Abstract: Provides a privacy advancing API to facilitate interest group based advertising.
!Participate: <a href="https://github.com/WICG/turtledove">GitHub WICG/turtledove</a> (<a href="https://github.com/WICG/turtledove/issues/new">new issue</a>, <a href="https://github.com/WICG/turtledove/issues?state=open">open issues</a>)
!Commits: <a href="https://github.com/WICG/turtledove/commits/main/spec.bs">GitHub spec.bs commits</a>
Complain About: accidental-2119 yes, missing-example-ids yes
Indent: 2
Default Biblio Status: current
Markup Shorthands: markdown yes
Assume Explicit For: yes
</pre>
<pre class="anchors">
urlPrefix: https://fetch.spec.whatwg.org/; spec: Fetch
type: dfn
text: HTTP-network-or-cache fetch; url: #concept-http-network-or-cache-fetch
text: task destination; for: fetch params; url: fetch-params-task-destination
urlPrefix: https://www.ietf.org/rfc/rfc4122.txt
type: dfn; text: urn uuid
type: dfn; text: string representation
type: dfn; text: version 4 UUID
urlPrefix: https://tc39.github.io/ecma262/#; spec: ECMASCRIPT
type: abstract-op
text: ToString; url: sec-tostring
urlPrefix: https://github.com/WICG/turtledove/blob/main/FLEDGE_k_anonymity_server.md
type: dfn; text: k-anonymity; url: what-is-k-anonymity
urlPrefix: https://developer.chrome.com/en/docs/privacy-sandbox/glossary/
type: dfn; text: ad creative; url: ad-creative
spec: RFC6234; urlPrefix: https://www.ietf.org/rfc/rfc6234.txt
type: dfn; text: SHA-256
urlPrefix: https://datatracker.ietf.org/doc/html/rfc8032
type: dfn
text: verify; url: section-5.1.7
urlPrefix: https://datatracker.ietf.org/doc/html/rfc3986
type:dfn
text: unreserved percent encoding character; url: section-2.3
spec: html; urlPrefix: https://html.spec.whatwg.org/C
type: dfn
text: create an agent; url: create-an-agent
text: immediately; url: immediately
text: valid floating-point number; url: valid-floating-point-number
text: structured clone algorithm; url: dom-structuredclone
spec: infra; urlPrefix: https://infra.spec.whatwg.org/
type: dfn
text: convert an Infra value to a JSON-compatible JavaScript value; url: #convert-an-infra-value-to-a-json-compatible-javascript-value
spec: RFC8941; urlPrefix: https://httpwg.org/specs/rfc8941.html
type: dfn
text: structured header; url: top
for: structured header
text: boolean; url: boolean
text: integer; url: integer
text: list; url: list
text: string; url: string
spec: WebAssembly; urlPrefix: https://webassembly.github.io/spec/core/
type: dfn
urlPrefix: appendix/embedding.html
text: error; url: embed-error
spec: WebAssembly-js-api; urlPrefix: https://webassembly.github.io/spec/js-api/
type: dfn
text: compiling a WebAssembly module; url: #compile-a-webassembly-module
spec: WebAssembly-web-api; urlPrefix: https://webassembly.github.io/spec/web-api/
type: dfn
text: compiling a potential WebAssembly response; url: #compile-a-potential-webassembly-response
spec: WebIDL; urlPrefix: https://webidl.spec.whatwg.org/
type: dfn
text: convert a Web IDL arguments list to an ECMAScript arguments list; url: #web-idl-arguments-list-converting
spec: Fenced Frame; urlPrefix: https://wicg.github.io/fenced-frame/
type: dfn
for: browsing context
text: fenced frame config instance; url: #browsing-context-fenced-frame-config-instance
spec: Private Aggregation API; urlPrefix: https://patcg-individual-drafts.github.io/private-aggregation-api
type: dfn
text: private-aggregation; url: #private-aggregation
spec: Shared Storage API; urlPrefix: https://wicg.github.io/shared-storage
type: dfn
text: shared-storage; url: #permissionspolicy-shared-storage
text: shared-storage-select-url; url: #permissionspolicy-shared-storage-select-url
spec: CSP; urlPrefix: https://w3c.github.io/webappsec-csp/
type: dfn
text: directive name; url: directive-name
text: directive value; url: directive-value
spec: CSPEE; urlPrefix: https://w3c.github.io/webappsec-cspee/
type: dfn
text: required csp; url: browsing-context-required-csp
</pre>
<pre class=link-defaults>
spec:encoding; type:dfn; text:utf-8
spec:infra; type:dfn; text:user agent
</pre>
<style>
/* Put nice boxes around each algorithm. */
[data-algorithm]:not(.heading) {
padding: .5em;
border: thin solid #ddd; border-radius: .5em;
margin: .5em calc(-0.5em - 1px);
}
[data-algorithm]:not(.heading) > :first-child {
margin-top: 0;
}
[data-algorithm]:not(.heading) > :last-child {
margin-bottom: 0;
}
[data-algorithm] [data-algorithm] {
margin: 1em 0;
}
dl { padding-left: 1em; }
/* domintro from https://resources.whatwg.org/standard.css */
.domintro {
position: relative;
color: green;
background: #DDFFDD;
margin: 2.5em 0 2em 0;
padding: 1.5em 1em 0.5em 2em;
}
.domintro dt, .domintro dt * {
color: black;
font-size: inherit;
}
.domintro dd {
margin: 0.5em 0 1em 2em; padding: 0;
}
.domintro dd p {
margin: 0.5em 0;
}
.domintro::before {
content: 'For web developers (non-normative)';
background: green;
color: white;
padding: 0.15em 0.25em;
font-style: normal;
position: absolute;
top: -0.8em;
left: -0.8em;
}
</style>
# Introduction # {#intro}
*This section is non-normative.*
The Protected Audience API facilitates selecting an advertisement to display to a user based on a
previous interaction with the advertiser or advertising network.
When a user's interactions with an advertiser indicate an interest in something, the advertiser can
ask the browser to record this interest on-device by calling
{{Window/navigator}}.{{Navigator/joinAdInterestGroup()}}. Later, when a website wants to select an
advertisement to show to the user, the website can call
{{Window/navigator}}.{{Navigator/runAdAuction()}} to ask the browser to conduct an
<dfn>auction</dfn> where each of these on-device recorded interests are given the chance to
calculate a bid to display their advertisement.
<h2 id="joining-interest-groups">Joining Interest Groups</h2>
*This first introductory paragraph is non-normative.*
When a user's interactions with a website indicate that the user may have a particular interest, an
advertiser or someone working on behalf of the advertiser (e.g. a demand side platform, DSP) can ask
the user's browser to record this interest on-device by calling
{{Window/navigator}}.{{Navigator/joinAdInterestGroup()}}. This indicates an intent to display an
advertisement relevant to this interest to this user in the future. The [=user agent=] has an
<dfn>interest group set</dfn>, a [=list=] of [=interest groups=] in which
[=interest group/owner=] / [=interest group/name=] pairs are unique.
<h3 id="join-ad-interest-groups">joinAdInterestGroup()</h3>
Issue: TODO: Currently, several of the IDL fields in {{AuctionAdInterestGroup}} are specified to use
USVString rather than DOMString, only because the initial implementation currently does. This may
contradict <a href="https://webidl.spec.whatwg.org/#idl-USVString">the recommended use of
DOMString</a>.
(<a href="https://github.com/WICG/turtledove/issues/1250">WICG/turtledove#1250</a>)
<xmp class="idl">
[SecureContext]
partial interface Navigator {
Promise<undefined> joinAdInterestGroup(AuctionAdInterestGroup group);
};
dictionary AuctionAd {
required USVString renderURL;
USVString sizeGroup;
any metadata;
USVString buyerReportingId;
USVString buyerAndSellerReportingId;
sequence<USVString> allowedReportingOrigins;
};
dictionary AuctionAdInterestGroupSize {
required USVString width;
required USVString height;
};
dictionary GenerateBidInterestGroup {
required USVString owner;
required USVString name;
boolean enableBiddingSignalsPrioritization = false;
record<DOMString, double> priorityVector;
record<USVString, sequence<DOMString>> sellerCapabilities;
DOMString executionMode = "compatibility";
USVString biddingLogicURL;
USVString biddingWasmHelperURL;
USVString updateURL;
USVString trustedBiddingSignalsURL;
sequence<USVString> trustedBiddingSignalsKeys;
DOMString trustedBiddingSignalsSlotSizeMode = "none";
long maxTrustedBiddingSignalsURLLength;
any userBiddingSignals;
sequence<AuctionAd> ads;
sequence<AuctionAd> adComponents;
record<DOMString, AuctionAdInterestGroupSize> adSizes;
record<DOMString, sequence<DOMString>> sizeGroups;
};
dictionary AuctionAdInterestGroup : GenerateBidInterestGroup {
double priority = 0.0;
record<DOMString, double> prioritySignalsOverrides;
required double lifetimeMs;
DOMString additionalBidKey;
};
</xmp>
{{AuctionAdInterestGroup}} is used by {{Window/navigator}}.{{Navigator/joinAdInterestGroup()}}, and
when an interest group is stored to [=interest group set=].
`priority` and `prioritySignalsOverrides` are not passed to `generateBid()` because they can be
modified by `generatedBid()` calls, so could theoretically be used to create a cross-site profile of
a user accessible to `generateBid()` methods, otherwise. `lifetimeMs` is not passed to `generateBid()`
because it's ambiguous what should be passed: the lifetime when the group was joined, or the
remaining lifetime. Providing the remaining lifetime would also potentially give access to more
granular timing information than the API would otherwise allow, when state is shared across interest
groups.
<div algorithm="joinAdInterestGroup()">
The <dfn for=Navigator method>joinAdInterestGroup(|group|)</dfn> method steps are:
<div class="note">
Temporarily, Chromium does not include the <a for="dictionary member"><span class="allow-2119">required</span></a> keyword
for {{AuctionAdInterestGroup/lifetimeMs}}, and instead starts this algorithm with the step
1. If |group|["{{AuctionAdInterestGroup/lifetimeMs}}"] does not [=map/exist=], throw a {{TypeError}}.
This is detectable because it can change the set of fields that are read from the argument when a
{{TypeError}} is eventually thrown, but it will never change whether the call succeeds or fails.
</div>
1. Let |global| be [=this=]'s [=relevant global object=].
1. If |global|'s [=associated Document=] is not [=allowed to use=] the "[=join-ad-interest-group=]"
[=policy-controlled feature=], then [=exception/throw=] a "{{NotAllowedError}}" {{DOMException}}.
1. Let |frameOrigin| be [=this=]'s [=relevant settings object=]'s [=environment settings object/origin=].
1. [=Assert=] that |frameOrigin| is not an [=opaque origin=] and its [=origin/scheme=] is "`https`".
1. Let |interestGroup| be a new [=interest group=].
1. Validate the given |group| and set |interestGroup|'s fields accordingly.
1. Set |interestGroup|'s [=interest group/expiry=] to the [=current wall time=] plus
|group|["{{AuctionAdInterestGroup/lifetimeMs}}"] milliseconds.
1. Set |interestGroup|'s [=interest group/next update after=] to the [=current wall time=] plus 24
hours.
1. Set |interestGroup|'s [=interest group/last updated=] to the [=current wall time=].
1. Set |interestGroup|'s [=interest group/owner=] to the result of [=parsing an https origin=] on
|group|["{{GenerateBidInterestGroup/owner}}"].
1. If |interestGroup|'s [=interest group/owner=] is failure, then [=exception/throw=] a {{TypeError}}.
1. Optionally, [=exception/throw=] a "{{NotAllowedError}}" {{DOMException}}.
Note: This [=implementation-defined=] condition is intended to allow [=user agents=] to decline
for a number of reasons, for example the [=interest group/owner=]'s [=site=] not being
<a href="https://github.com/privacysandbox/attestation">enrolled</a>.
1. Set |interestGroup|'s [=interest group/name=] to |group|["{{GenerateBidInterestGroup/name}}"].
1. Set |interestGroup|'s [=interest group/priority=] to
|group|["{{AuctionAdInterestGroup/priority}}"].
1. Set |interestGroup|'s [=interest group/enable bidding signals prioritization=] to
|group|["{{GenerateBidInterestGroup/enableBiddingSignalsPrioritization}}"].
1. If |group|["{{GenerateBidInterestGroup/priorityVector}}"] [=map/exists=], then set
|interestGroup|'s [=interest group/priority vector=] to
|group|["{{GenerateBidInterestGroup/priorityVector}}"].
1. If |group|["{{AuctionAdInterestGroup/prioritySignalsOverrides}}"] [=map/exists=], then set
|interestGroup|'s [=interest group/priority signals overrides=] to
|group|["{{AuctionAdInterestGroup/prioritySignalsOverrides}}"].
1. If |group|["{{GenerateBidInterestGroup/sellerCapabilities}}"] [=map/exists=], [=map/for each=]
|sellerString| → |capabilities| of |group|["{{GenerateBidInterestGroup/sellerCapabilities}}"]:
1. Let |sellerCapabilities| be a new [=set=] of [=seller capabilities=].
1. [=list/For each=] |capabilityString| of |capabilities|:
1. If |capabilityString| is "`interest-group-counts`" or "`latency-stats`", then
[=set/append=] |capabilityString| to |sellerCapabilities|.
Note: For forward compatibility with new values, don't [=exception/throw=].
1. If |sellerString| is "`*`", then set |interestGroup|'s
[=interest group/all sellers capabilities=] to |sellerCapabilities|.
1. Otherwise:
1. If |interestGroup|'s [=interest group/seller capabilities=] is null, then set
|interestGroup|'s [=interest group/seller capabilities=] to a new [=ordered map=] whose
[=map/keys=] are [=origins=] and whose [=map/values=] are [=sets=] of [=seller capabilities=].
1. Let |sellerUrl| be the result of running the [=URL parser=] on |sellerString|.
1. If |sellerUrl| is not failure:
1. Let |seller| be |sellerUrl|'s [=url/origin=].
1. If |interestGroup|'s [=interest group/seller capabilities=] does not [=map/contain=]
|seller|, then [=map/set=] |interestGroup|'s
[=interest group/seller capabilities=][|seller|] to |sellerCapabilities|.
1. If |group|["{{GenerateBidInterestGroup/executionMode}}"] is "`compatibility`",
"`frozen-context`", or "`group-by-origin`", then set |interestGroup|'s
[=interest group/execution mode=] to it.
1. For each |groupMember| and |interestGroupField| in the following table
<table class="data">
<thead><tr><th>Group member</th><th>Interest group field</th></tr></thead>
<tr>
<td>"{{GenerateBidInterestGroup/biddingLogicURL}}"</td>
<td>[=interest group/bidding url=]</td>
</tr>
<tr>
<td>"{{GenerateBidInterestGroup/biddingWasmHelperURL}}"</td>
<td>[=interest group/bidding wasm helper url=]</td>
</tr>
<tr>
<td>"{{GenerateBidInterestGroup/updateURL}}"</td>
<td>[=interest group/update url=]</td>
</tr>
</table>
1. If |group| [=map/contains=] |groupMember|:
1. Let |parsedUrl| be the result of running [=parse and verify a bidding code or update URL=]
on |group|[|groupMember|] and |interestGroup|'s [=interest group/owner=].
1. If |parsedUrl| is failure, then [=exception/throw=] a {{TypeError}}.
1. Set |interestGroup|'s |interestGroupField| to |parsedUrl|.
1. If |group|["{{GenerateBidInterestGroup/trustedBiddingSignalsURL}}"] [=map/exists=]:
1. Let |parsedUrl| be the result of running [=parse and verify a trusted signals URL=] on
|group|[{{GenerateBidInterestGroup/trustedBiddingSignalsURL}}].
1. If |parsedUrl| is failure, then [=exception/throw=] a {{TypeError}}.
1. Set |interestGroup|'s [=interest group/trusted bidding signals url=] to |parsedUrl|.
1. If |group|["{{GenerateBidInterestGroup/trustedBiddingSignalsKeys}}"] [=map/exists=], then set
|interestGroup|'s [=interest group/trusted bidding signals keys=] to
|group|["{{GenerateBidInterestGroup/trustedBiddingSignalsKeys}}"].
1. If |group|["{{GenerateBidInterestGroup/maxTrustedBiddingSignalsURLLength}}"] [=map/exists=]:
1. If |group|["{{GenerateBidInterestGroup/maxTrustedBiddingSignalsURLLength}}"] ≥ 0, set
|interestGroup|'s [=interest group/max trusted bidding signals url length=] to
|group|["{{GenerateBidInterestGroup/maxTrustedBiddingSignalsURLLength}}"], otherwise
[=exception/throw=] a {{TypeError}}.
1. If |group|["{{GenerateBidInterestGroup/userBiddingSignals}}"] [=map/exists=]:
1. Set |interestGroup|'s [=interest group/user bidding signals=] to the result of
[=serializing a JavaScript value to a JSON string=], given
|group|["{{GenerateBidInterestGroup/userBiddingSignals}}"]. This can [=exception/throw=] a
{{TypeError}}.
1. If |group|["{{GenerateBidInterestGroup/trustedBiddingSignalsSlotSizeMode}}"] is one of "none",
"slot-size", or "all-slots-requested-sizes", set |interestGroup|'s
[=interest group/trusted bidding signals slot size mode=] to
|group|["{{GenerateBidInterestGroup/trustedBiddingSignalsSlotSizeMode}}"].
1. Let |adSizes| be a new [=map=] whose [=map/keys=] are [=strings=] and [=map/values=] are
[=ad sizes=].
1. If |group|["{{GenerateBidInterestGroup/adSizes}}"] [=map/exists=]:
1. [=map/For each=] |sizeName| → |size| of |group|["{{GenerateBidInterestGroup/adSizes}}"]:
1. If |sizeName| is "", [=exception/throw=] a {{TypeError}}.
1. Let |parsedSize| be the result from running [=parse an AdRender ad size=] with |size|.
1. If |parsedSize| is null, [=exception/throw=] a {{TypeError}}.
1. [=map/Set=] |adSizes|[|sizeName|] to |parsedSize|.
1. Set |interestGroup|'s [=interest group/ad sizes=] to |adSizes|.
1. Let |sizeGroups| be a new [=map=] whose [=map/keys=] are [=strings=] and [=map/values=]
are [=lists=] of [=strings=]
1. If |group|["{{GenerateBidInterestGroup/sizeGroups}}"] [=map/exists=]:
1. [=map/For each=] |sizeGroupName| → |sizeList| of
|group|["{{GenerateBidInterestGroup/sizeGroups}}"]:
1. If |sizeGroupName| is "", [=exception/throw=] a {{TypeError}}.
1. [=list/For each=] |sizeName| of |sizeList|:
1. If |sizeName| is "" or |adSizes|[|sizeName|] does not [=map/exist=],
[=exception/throw=] a {{TypeError}}.
1. [=map/Set=] |sizeGroups|[|sizeGroupName|] to |sizeList|.
1. Set |interestGroup|'s [=interest group/size groups=] to |sizeGroups|.
1. For each |groupMember| and |interestGroupField| in the following table
<table class="data">
<thead><tr><th>Group member</th><th>Interest group field</th></tr></thead>
<tr>
<td>"{{GenerateBidInterestGroup/ads}}"</td>
<td>[=interest group/ads=]</td>
</tr>
<tr>
<td>"{{GenerateBidInterestGroup/adComponents}}"</td>
<td>[=interest group/ad components=]</td>
</tr>
</table>
1. If |group| [=map/contains=] |groupMember|, [=list/for each=] |ad| of |group|[|groupMember|]:
1. Let |igAd| be a new [=interest group ad=].
1. Let |renderURL| be the result of running the [=URL parser=] on
|ad|["{{AuctionAd/renderURL}}"].
1. [=exception/Throw=] a {{TypeError}} if any of the following conditions hold:
* |renderURL| is failure;
* |renderURL| [=url/scheme=] is not "`https`";
* |renderURL| [=includes credentials=].
1. Set |igAd|'s [=interest group ad/render url=] to |renderURL|.
1. If |ad|["{{AuctionAd/sizeGroup}}"] [=map/exists=]:
1. Let |sizeGroup| be |ad|["{{AuctionAd/sizeGroup}}}].
1. [=exception/Throw=] a {{TypeError}} if none of the following conditions hold:
* |adSizes|[|sizeGroup|] [=map/exists=].
* |sizeGroups|[|sizeGroup|] [=map/exists=].
1. Set |igAd|'s [=interest group ad/size group=] to |sizeGroup|.
1. If |ad|["{{AuctionAd/metadata}}"] [=map/exists=], then let
|igAd|'s [=interest group ad/metadata=] be the result of
[=serializing a JavaScript value to a JSON string=], given |ad|["{{AuctionAd/metadata}}"].
This can [=exception/throw=] a {{TypeError}}.
1. If |groupMember| is "{{GenerateBidInterestGroup/ads}}":
1. If |ad|["{{AuctionAd/buyerReportingId}}"] [=map/exists=], then set
|igAd|'s [=interest group ad/buyer reporting ID=] to it.
1. If |ad|["{{AuctionAd/buyerAndSellerReportingId}}"] [=map/exists=],
then set |igAd|'s [=interest group ad/buyer and seller reporting ID=] to it.
1. If |ad|["{{AuctionAd/allowedReportingOrigins}}"] [=map/exists=]:
1. Let |allowedReportingOrigins| be a new [=list=] of [=origins=].
1. [=list/For each=] |originStr| in |ad|["{{AuctionAd/allowedReportingOrigins}}"]:
1. Let |origin| be the result of [=parsing an https origin=] on |originStr|.
1. If |origin| is failure, then [=exception/throw=] a {{TypeError}}.
1. [=list/Append=] |origin| to |allowedReportingOrigins|.
1. If |allowedReportingOrigins|'s [=list/size=] > 10, [=exception/throw=]
a {{TypeError}}.
1. Set |igAd|'s [=interest group ad/allowed reporting origins=] to |allowedReportingOrigins|.
1. [=list/Append=] |igAd| to |interestGroup|'s |interestGroupField|.
1. If |group|["{{AuctionAdInterestGroup/additionalBidKey}}"] [=map/exists=]:
1. Let |decodedKey| be the result of running [=forgiving-base64 decode=] with
|group|["{{AuctionAdInterestGroup/additionalBidKey}}"].
1. [=exception/Throw=] a {{TypeError}} if any of the following conditions hold:
* |decodedKey| is a failure;
* |decodedKey|'s [=byte sequence/length=] is not 32;
* |group|["{{GenerateBidInterestGroup/ads}}"] [=map/exists=];
* |group|["{{GenerateBidInterestGroup/updateURL}}"] [=map/exists=].
1. Set |interestGroup|'s [=interest group/additional bid key=] to |decodedKey|.
1. If |interestGroup|'s [=interest group/estimated size=] > 1048576 bytes, then [=exception/throw=] a
{{TypeError}}.
1. Let |p| be [=a new promise=].
1. Let |queue| be the result of [=starting a new parallel queue=].
1. [=parallel queue/enqueue steps|Enqueue the following steps=] to |queue|:
1. Let |permission| be the result of [=checking interest group permissions=] with
|interestGroup|'s [=interest group/owner=], |frameOrigin|, and "`join`".
1. If |permission| is false, then [=queue a global task=] on [=DOM manipulation task source=],
given |global|, to [=reject=] |p| with a "{{NotAllowedError}}" {{DOMException}} and abort these
steps.
1. [=Queue a global task=] on [=DOM manipulation task source=], given |global|, to [=resolve=] |p|
with `undefined`.
1. If the browser is currently storing an interest group with `owner` and `name` that matches
|interestGroup|, then set the [=interest group/bid counts=],
[=interest group/join counts=], and [=interest group/previous wins=] of
|interestGroup| to the values of the currently stored one and remove
the currently stored one from the browser.
1. Set |interestGroup|'s [=interest group/joining origin=] to [=this=]'s
[=relevant settings object=]'s [=environment/top-level origin=].
1. Set |interestGroup|'s [=interest group/join time=] to the [=current wall time=].
1. If the most recent entry in |interestGroup|'s [=interest group/join counts=] corresponds to
the current day in UTC, increment its count. If not, [=list/insert=] a new [=tuple=]
the time set to the current UTC day and a count of 1.
1. Store |interestGroup| in the [=user agent=]'s [=interest group set=].
1. Return |p|.
</div>
<h3 id="interest-group-storage-maintenance">Interest Group Storage Maintenance</h3>
There is a job that periodically [=performs storage maintenance=] on the [=user agent=]'s
[=interest group set=]. It performs operations such as [=list/removing=] expired or excess
[=interest groups=]. An [=interest group set=] must respect the following limits. Implementations
may define their own values for the below constants, however we supply the below values as a
starting point, inspired by what the initial implementation of this specification uses:
* <dfn>Interest group set max owners</dfn> is 1000, which defines the max number of
[=interest group/owners=] in the [=user agent=]'s [=interest group set=].
* <dfn>Max regular interest groups per owner</dfn> is 2000, which defines the max number of
[=regular interest groups=] in the [=user agent=]'s [=interest group set=] for an
[=interest group/owner=].
* <dfn>Max negative interest groups per owner</dfn> is 20000, which defines the max number of
[=negative interest groups=] in the [=user agent=]'s [=interest group set=] for an
[=interest group/owner=].
* <dfn>Max interest groups total size per owner</dfn> is <code>10\*1024\*1024</code>, which
defines the max total [=interest group/estimated size|sizes=] of [=interest groups=] in the
[=user agent=]'s [=interest group set=] for an [=interest group/owner=]. It includes both
[=regular interest groups=] and [=negative interest groups=].
<div algorithm>
To <dfn>perform storage maintenance</dfn>:
1. Let |ownersAndExpiry| be a new [=ordered map=] whose [=map/keys=] are [=origins=] and
[=map/values=] are [=moments=].
Note: The [=map/key=] is from [=interest group/owner=], and [=map/value=] is from
[=interest group/expiry=]. It's used to determine a set of [=interest group/owners=] whose
[=interest groups=] will be removed from the [=user agent=]'s [=interest group set=] because the
number of distinct [=interest group/owners=] exceeds the [=Interest group set max owners=] limit.
It's sorted based on their [=map/values=] ([=interest group/expiry=]) in descending order, in
order to remove [=interest groups=] of [=interest group/owners=] expiring soonest first.
1. Let |now| be the [=current wall time=].
1. [=list/For each=] |ig| of the [=user agent=]'s [=interest group set=]:
1. Let |owner| be |ig|'s [=interest group/owner=].
1. If |ig|'s [=interest group/expiry=] is before |now|, then [=list/remove=] |ig| from the
[=user agent=]'s [=interest group set=] and [=iteration/continue=].
1. If |ownersAndExpiry|[|owner|] [=map/exists=], then [=map/set=] |ownersAndExpiry|[|owner|] to
|ig|'s [=interest group/expiry=] if it comes after |ownersAndExpiry|[|owner|].
1. Otherwise, [=map/set=] |ownersAndExpiry|[|owner|] to |ig|'s [=interest group/expiry=].
1. If |ownersAndExpiry|'s [=map/size=] > [=interest group set max owners=], then [=map/set=]
|ownersAndExpiry| to |ownersAndExpiry| [=map/sorted in descending order=] with |a| being less than
|b| if |a|'s [=map/value=] comes before |b|'s [=map/value=], where [=map/values=] are
[=interest group/expiry=].
1. Let |owners| be the [=map/get the keys|keys=] of |ownersAndExpiry|.
1. [=list/For each=] |i| in [=the range=] from 0 to |owners|'s [=set/size=], exclusive:
1. If |i| ≥ [=interest group set max owners=], then [=list/remove=] [=interest groups=] from
the [=user agent=]'s [=interest group set=] whose [=interest group/owner=] is |owners|[|i|], and
[=iteration/continue=].
1. Let |regularIgs| be a [=list=] of [=regular interest groups=] in the [=user agent=]'s
[=interest group set=] whose [=interest group/owner=] is |owners|[|i|].
1. If |regularIgs|'s [=list/size=] > [=max regular interest groups per owner=], then
[=clear excess interest groups=] with |regularIgs| and [=max regular interest groups per owner=].
1. Let |negativeIgs| be a [=list=] of [=negative interest groups=] in the [=user agent=]'s
[=interest group set=] whose [=interest group/owner=] is |owners|[|i|].
1. If |negativeIgs|'s [=list/size=] > [=max negative interest groups per owner=], then
[=clear excess interest groups=] with |negativeIgs| and [=max negative interest groups per owner=].
1. [=list/For each=] |owner| of |owners|:
1. Let |igs| be a [=list=] of [=interest groups=] in the [=user agent=]'s [=interest group set=]
whose [=interest group/owner=] is |owner|, [=list/sorted in descending order=] with |a| being
less than |b| if |a|'s [=interest group/expiry=] comes before |b|'s [=interest group/expiry=].
1. Let |cumulativeSize| be 0.
1. [=list/For each=] |ig| of |igs|:
1. If the sum of |cumulativeSize| and |ig|'s [=interest group/estimated size=]
> [=max interest groups total size per owner=], then [=list/remove=] |ig| from the
[=user agent=]'s [=interest group set=].
1. Otherwise, increment |cumulativeSize| by |ig|'s [=interest group/estimated size=].
</div>
<div algorithm>
To <dfn>clear excess interest groups</dfn> with a [=list=] of [=interest groups=] |igs|, and an
integer |maxIgs|:
1. Let |sortedIgs| be |igs| [=list/sorted in descending order=] with |a| being less
than |b| if |a|'s [=interest group/expiry=] comes before |b|'s [=interest group/expiry=].
Note: In order to remove interest groups expiring soonest first, sort interest groups based on
their expiry in descending order.
1. [=list/For each=] |i| in [=the range=] from |maxIgs| to |igs|'s [=list/size=], exclusive:
1. [=list/Remove=] |sortedIgs|[|i|] from the [=user agent=]'s [=interest group set=].
</div>
<h2 id="leaving-interest-groups">Leaving Interest Groups</h2>
<h3 id="leaveadinterestgroup">leaveAdInterestGroup()</h3>
*This first introductory paragraph is non-normative.*
{{Window/navigator}}.{{Navigator/leaveAdInterestGroup()}} removes a user from a particular interest
group.
<xmp class="idl">
[SecureContext]
partial interface Navigator {
Promise<undefined> leaveAdInterestGroup(optional AuctionAdInterestGroupKey group = {});
};
dictionary AuctionAdInterestGroupKey {
required USVString owner;
required USVString name;
};
</xmp>
<div algorithm>
The <dfn for=Navigator method>leaveAdInterestGroup(group)</dfn> method steps are:
1. Let |global| be [=this=]'s [=relevant global object=].
1. Let |frameOrigin| be [=this=]'s [=relevant settings object=]'s [=environment settings object/origin=].
1. [=Assert=] that |frameOrigin| is not an [=opaque origin=] and its [=origin/scheme=] is "`https`".
1. Let |p| be [=a new promise=].
1. If |group| [=map/is empty=]:
1. Let |instance| be |global|'s [=Window/browsing context=]'s
[=browsing context/fenced frame config instance=].
1. If |instance| is null, then return.
1. Let |interestGroup| be |instance|'s [=fenced frame config instance/interest group descriptor=].
1. Run these steps [=in parallel=]:
1. [=Queue a global task=] on [=DOM manipulation task source=], given |global|, to [=resolve=]
|p| with `undefined`.
1. If |interestGroup| is not null:
1. Let |owner| be |interestGroup|'s [=interest group descriptor/owner=].
1. If |owner| is [=same origin=] with |frameOrigin|, then [=list/remove=] [=interest groups=]
from the [=user agent=]'s [=interest group set=] whose [=interest group/owner=] is |owner| and
[=interest group/name=] is |interestGroup|'s [=interest group descriptor/name=].
1. Otherwise:
1. If |global|'s [=associated Document=] is not [=allowed to use=] the
"[=join-ad-interest-group=]" [=policy-controlled feature=], then [=exception/throw=] a
"{{NotAllowedError}}" {{DOMException}}.
Note: Both joining and leaving interest groups use the "join-ad-interest-group" feature.
1. Let |owner| be the result of [=parsing an https origin=] with
|group|["{{AuctionAdInterestGroupKey/owner}}"].
1. If |owner| is failure, [=exception/throw=] a {{TypeError}}.
1. Run these steps [=in parallel=]:
1. Let |permission| be the result of [=checking interest group permissions=] with
|owner|, |frameOrigin|, and "`leave`".
1. If |permission| is false, then [=queue a global task=] on [=DOM manipulation task source=],
given |global|, to [=reject=] |p| with a "{{NotAllowedError}}" {{DOMException}} and abort
these steps.
1. [=Queue a global task=] on [=DOM manipulation task source=], given |global|, to [=resolve=]
|p| with `undefined`.
1. [=list/Remove=] [=interest groups=] from the [=user agent=]'s [=interest group set=] whose
[=interest group/owner=] is |owner| and [=interest group/name=] is
|group|["{{AuctionAdInterestGroupKey/name}}"].
1. Return |p|.
</div>
<h3 id="clearoriginjoinedAdInterestGroups">clearOriginJoinedAdInterestGroups()</h3>
*This first introductory paragraph is non-normative.*
{{Window/navigator}}.{{Navigator/clearOriginJoinedAdInterestGroups()}} removes a user from
[=interest groups=] whose [=interest group/joining origin=] is the associated
{{Navigator}}'s [=relevant settings object=]'s [=environment/top-level origin=].
<xmp class="idl">
[SecureContext]
partial interface Navigator {
Promise<undefined> clearOriginJoinedAdInterestGroups(
USVString owner, optional sequence<USVString> interestGroupsToKeep = []);
};
</xmp>
<div algorithm>
The <dfn for=Navigator method>clearOriginJoinedAdInterestGroups(|owner|, |interestGroupsToKeep|)</dfn>
method steps are:
1. Let |frameOrigin| be [=this=]'s [=relevant settings object=]'s
[=environment settings object/origin=].
1. [=Assert=] that |frameOrigin| is not an [=opaque origin=] and its [=origin/scheme=] is "`https`".
1. Let |p| be [=a new promise=].
1. Let |global| be [=this=]'s [=relevant global object=].
1. If |global|'s [=associated Document=] is not [=allowed to use=] the
"[=join-ad-interest-group=]" [=policy-controlled feature=], then [=exception/throw=] a
"{{NotAllowedError}}" {{DOMException}}.
Note: Both joining and leaving interest groups use the "join-ad-interest-group" feature.
1. Let |ownerOrigin| be the result of [=parsing an https origin=] with |owner|.
1. If |ownerOrigin| is failure, [=exception/throw=] a {{TypeError}}.
1. Run these steps [=in parallel=]:
1. Let |permission| be the result of [=checking interest group permissions=] with
|ownerOrigin|, |frameOrigin|, and "`leave`".
1. If |permission| is false, then [=queue a global task=] on the [=DOM manipulation task source=]
given |global|, [=reject=] |p| with a "{{NotAllowedError}}" {{DOMException}} and abort these steps.
1. [=Queue a global task=] on the [=DOM manipulation task source=] given |global|, to [=resolve=] |p|
with {{undefined}}.
1. [=list/Remove=] [=interest groups=] from the [=user agent=]'s [=interest group set=]
whose [=interest group/owner=] is |ownerOrigin|, whose [=interest group/joining origin=] is
|frameOrigin|, and whose [=interest group/name=] is not in |interestGroupsToKeep|.
1. Return |p|.
</div>
<h2 id="running-ad-auctions">Running Ad Auctions</h2>
*This first introductory paragraph is non-normative.*
When a website or someone working on behalf of the website (e.g. a supply side platform, SSP) wants
to conduct an auction to select an advertisement to display to the user, they can call the
{{Window/navigator}}.{{Navigator/runAdAuction()}} function, providing an auction configuration that
tells the browser how to conduct the auction and which on-device recorded interests are allowed to
bid in the auction for the chance to display their advertisement.
<h3 id="runadauction">runAdAuction()</h3>
<xmp class="idl">
[SecureContext]
partial interface Navigator {
Promise<(USVString or FencedFrameConfig)?> runAdAuction(AuctionAdConfig config);
readonly attribute boolean deprecatedRunAdAuctionEnforcesKAnonymity;
};
dictionary AuctionRealTimeReportingConfig {
required DOMString type;
};
dictionary AuctionAdConfig {
required USVString seller;
required USVString decisionLogicURL;
USVString trustedScoringSignalsURL;
long maxTrustedScoringSignalsURLLength;
sequence<USVString> interestGroupBuyers;
Promise<any> auctionSignals;
Promise<any> sellerSignals;
Promise<DOMString> directFromSellerSignalsHeaderAdSlot;
Promise<record<USVString, USVString>> deprecatedRenderURLReplacements;
unsigned long long sellerTimeout;
unsigned short sellerExperimentGroupId;
Promise<record<USVString, any>> perBuyerSignals;
Promise<record<USVString, unsigned long long>> perBuyerTimeouts;
Promise<record<USVString, unsigned long long>> perBuyerCumulativeTimeouts;
unsigned long long reportingTimeout;
USVString sellerCurrency;
Promise<record<USVString, USVString>> perBuyerCurrencies;
record<USVString, unsigned short> perBuyerMultiBidLimits;
record<USVString, unsigned short> perBuyerGroupLimits;
record<USVString, unsigned short> perBuyerExperimentGroupIds;
record<USVString, record<USVString, double>> perBuyerPrioritySignals;
sequence<DOMString> requiredSellerCapabilities;
record<DOMString, DOMString> requestedSize;
sequence<record<DOMString, DOMString>> allSlotsRequestedSizes;
Promise<undefined> additionalBids;
DOMString auctionNonce;
AuctionRealTimeReportingConfig sellerRealTimeReportingConfig;
record<USVString, AuctionRealTimeReportingConfig> perBuyerRealTimeReportingConfig;
sequence<AuctionAdConfig> componentAuctions = [];
AbortSignal? signal;
Promise<boolean> resolveToConfig;
Promise<Uint8Array> serverResponse;
USVString requestId;
};
</xmp>
Note: To help with ease of adoption, the browser will support the attribute
{{Window/navigator}}.{{Navigator/deprecatedRunAdAuctionEnforcesKAnonymity}}
while k-anonymity enforcement is being rolled out. This attribute is true
when {{Window/navigator}}.{{Navigator/runAdAuction()}} enforces
[[#k-anonymity]] when running an auction and false otherwise. The attribute
is not useful once k-anonymity enforcement is fully rolled out, and hence
this attribute will be deprecated and removed some time after this point.
See <a href="https://developers.google.com/privacy-sandbox/relevance/protected-audience-api/k-anonymity">
https://developers.google.com/privacy-sandbox/relevance/protected-audience-api/k-anonymity</a> for
more up to date information.
<div algorithm="runAdAuction()">
The <dfn for=Navigator method>runAdAuction(|config|)</dfn> method steps are:
1. Let |global| be [=this=]'s [=relevant global object=].
1. Let |settings| be [=this=]'s [=relevant settings object=].
1. If |global|'s [=associated Document=] is not [=allowed to use=] the "[=run-ad-auction=]"
[=policy-controlled feature=], then [=exception/throw=] a "{{NotAllowedError}}" {{DOMException}}.
1. Let |auctionConfig| be the result of running [=validate and convert auction ad config=] with
|config| and true.
1. If |auctionConfig| is failure, then [=exception/throw=] a {{TypeError}}.
1. Optionally, [=exception/throw=] a "{{NotAllowedError}}" {{DOMException}}.
Note: This [=implementation-defined=] condition is intended to allow [=user agents=] to decline
for a number of reasons, for example the [=auction config/seller=]'s [=site=] not being
<a href="https://github.com/privacysandbox/attestation">enrolled</a>.
1. Let |p| be [=a new promise=].
1. Let |configMapping| be |global|'s [=associated Document=]'s [=node navigable=]'s
[=navigable/traversable navigable=]'s [=traversable navigable/fenced frame config mapping=].
1. Let |pendingConfig| be the result of [=constructing a pending fenced frame config=] with
|auctionConfig|.
1. Let |urn| be the result of running [=fenced frame config mapping/store a pending config=] on
|configMapping| with |pendingConfig|.
1. If |urn| is failure, then resolve |p| with null and return |p|.
1. Let |bidIgs| be a new [=list=] of [=interest groups=].
1. If |config|["{{AuctionAdConfig/signal}}"] [=map/exists=], then:
1. Let |signal| be |config|["{{AuctionAdConfig/signal}}"].
1. If |signal| is [=AbortSignal/aborted=], then [=reject=] |p| with |signal|'s
[=AbortSignal/abort reason=] and return |p|.
1. [=AbortSignal/Add|Add the following abort steps=] to |signal|:
1. [=Reject=] |p| with |signal|’s [=AbortSignal/abort reason=].
1. Run [=update bid counts=] with |bidIgs|.
1. Run [=interest group update=] with |auctionConfig|'s
[=auction config/interest group buyers=].
1. Let |frameOrigin| be |settings|'s [=environment settings object/origin=].
1. [=Assert=] that |frameOrigin| is not an [=opaque origin=] and its [=origin/scheme=] is "`https`".
1. Let |queue| be the result of [=starting a new parallel queue=].
1. [=parallel queue/enqueue steps|Enqueue the following steps=] to |queue|:
1. Let |bidDebugReportInfoList| be a new [=list=] of [=bid debug reporting info=].
1. If |auctionConfig|'s [=auction config/server response=] is not null:
1. Let |winnerInfo| be the result of running [=parse and validate server response=] with |auctionConfig|,
null, |global|, |bidIgs|, and |bidDebugReportInfoList|.
1. Otherwise:
1. Let |realTimeContributionsMap| be a new [=real time reporting contributions map=].
1. Let |winnerInfo| be the result of running [=generate and score bids=] with |auctionConfig|,
null, |global|, |settings|'s [=environment/top-level origin=], |bidIgs|,
|bidDebugReportInfoList|, and |realTimeContributionsMap|.
1. Let |auctionReportInfo| be a new [=auction report info=].
1. If |winnerInfo| is not failure, then:
1. Set |auctionReportInfo| to the result of running [=collect forDebuggingOnly reports=] with
|bidDebugReportInfoList| and |winnerInfo|.
1. Set |auctionReportInfo|'s [=auction report info/real time reporting contributions map=] to
|realTimeContributionsMap|.
1. If |winnerInfo| is failure, then [=queue a global task=] on [=DOM manipulation task source=],
given |global|, to [=reject=] |p| with a "{{TypeError}}".
1. Otherwise if |winnerInfo| is null or |winnerInfo|'s [=leading bid info/leading bid=] is null:
1. [=Queue a global task=] on [=DOM manipulation task source=], given |global|, to [=resolve=]
|p| with null.
1. [=list/For each=] |reportUrl| of |auctionReportInfo|'s
[=auction report info/debug loss report urls=]:
1. [=Send report=] with |reportUrl| and |frameOrigin|.
1. [=Send real time reports=] with |auctionReportInfo|'s
[=auction report info/real time reporting contributions map=] and |frameOrigin|.
1. Otherwise:
1. Let |winner| be |winnerInfo|'s [=leading bid info/leading bid=].
1. Let |fencedFrameConfig| be the result of [=filling in a pending fenced frame config=] with
|pendingConfig|, |auctionConfig|, |winnerInfo|, |auctionReportInfo|, and |frameOrigin|.
1. [=fenced frame config mapping/Finalize a pending config=] on |configMapping| with |urn| and
|fencedFrameConfig|.
1. Wait until |auctionConfig|'s [=auction config/resolve to config=] is a boolean.
1. Let |result| be |fencedFrameConfig|.
1. If |auctionConfig|'s [=auction config/resolve to config=] is false, then set |result| to |urn|.
1. [=Queue a global task=] on the [=DOM manipulation task source=], given |global|, to
resolve |p| with |result|.
1. Run [=interest group update=] with |auctionConfig|'s [=auction config/interest group buyers=].
1. Run [=update bid counts=] with |bidIgs|.
1. Run [=update previous wins=] with |winner|.
1. Return |p|.
</div>
<div algorithm>
To <dfn>construct a pending fenced frame config</dfn> given an [=auction config=]
|config|:
1. Return a [=fenced frame config=] with the following [=struct/items=]:
: [=fenced frame config/mapped url=]
:: a [=struct=] with the following [=struct/items=]:
: [=mapped url/value=]
:: `"about:blank"`
: [=mapped url/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/container size=]
:: the result of
Issue: converting |config|'s [=auction config/requested size=] to pixel values
(<a href="https://github.com/WICG/turtledove/issues/986">WICG/turtledove#986</a>)
: [=fenced frame config/content size=]
:: null
: [=fenced frame config/interest group descriptor=]
:: a [=struct=] with the following [=struct/items=]:
: [=interest group descriptor/value=]
:: a [=struct=] with the following [=struct/items=]:
: [=interest group descriptor/owner=]
:: ""
: [=interest group descriptor/name=]
:: ""
: [=interest group descriptor/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/on navigate callback=]
:: null
: [=fenced frame config/effective sandboxing flags=]
:: a [=struct=] with the following [=struct/items=]:
: [=effective sandboxing flags/value=]
:: TODO: fill this in once fenced frame sandbox flags are more fully specified
: [=effective sandboxing flags/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/effective enabled permissions=]
:: a [=struct=] with the following [=struct/items=]:
: [=effective enabled permissions/value=]
:: «"<code>{{PermissionPolicy/attribution-reporting}}</code>",
"<code>[=private-aggregation=]</code>", "<code>[=shared-storage=]</code>",
"<code>[=shared-storage-select-url=]</code>"»
: [=effective enabled permissions/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/fenced frame reporting metadata=]
:: null
: [=fenced frame config/exfiltration budget metadata=]
:: null
: [=fenced frame config/nested configs=]
:: a [=struct=] with the following [=struct/items=]:
: [=nested configs/value=]
:: an empty [=list=] «»
: [=nested configs/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/embedder shared storage context=]
:: null
</div>
<div algorithm>
To <dfn>fill in a pending fenced frame config</dfn> given a [=fenced frame config=]
|pendingConfig|, [=auction config=] |auctionConfig|, [=leading bid info=] |winningBidInfo|,
[=auction report info=] |auctionReportInfo|, and an [=origin=] |frameOrigin|:
1. Let |winningBid| be |winningBidInfo|'s [=leading bid info/leading bid=].
1. Let |replacements| be an [=ordered map=] whose [=map/keys=] are [=strings=] and whose
[=map/values=] are [=strings=].
1. [=list/For each=] |replacement| in |auctionConfig|'s
[=auction config/deprecated render url replacements=]:
1. Let |k| be |replacement|'s [=ad keyword replacement/match=].
1. Let |v| be |replacement|'s [=ad keyword replacement/replacement=].
1. [=map/Set=] |replacements|[|k|] to |v|.
1. Let |replacedAdURL| be the result of
running [=fencedframeutil/substitute macros=] with |replacements| and |winningBid|'s
[=generated bid/ad descriptor=]'s [=ad descriptor/url=].
1. Set |pendingConfig|'s [=fenced frame config/mapped url=]'s [=mapped url/value=] to
|replacedAdURL|.
1. Let |adSize| be |winningBid|'s [=generated bid/ad descriptor=]'s [=ad descriptor/size=].
1. Let |concreteAdSize| be the result of
Issue: resolving screen-relative sizes to pixel values for |adSize|.
(<a href="https://github.com/WICG/turtledove/issues/986">WICG/turtledove#986</a>)
1. Let |adWidthString| and |adHeightString| be the result of
Issue: converting |concreteAdSize| to strings.
(<a href="https://github.com/WICG/turtledove/issues/986">WICG/turtledove#986</a>)
1. Let |sizeMacroMap| be the [=ordered map=] «[ "{%AD_WIDTH%}" → |adWidthString|,
"{%AD_HEIGHT%}" → |adHeightString|, "${AD_WIDTH}" → |adWidthString|,
"${AD_HEIGHT}" → |adHeightString|]»
1. Set |pendingConfig|'s [=fenced frame config/mapped url=]'s [=mapped url/value=] to
the result of [=fencedframeutil/substituting macros=] with |sizeMacroMap| into |winningBid|'s
[=generated bid/ad descriptor=]'s [=ad descriptor/url=].
1. If |adSize| is not null:
1. Set |pendingConfig|'s [=fenced frame config/content size=] to a [=struct=] with the following
[=struct/items=]:
: [=content size/value=]
:: |concreteAdSize|.
Issue: Cast |concreteAdSize| into the format that is eventually chosen for
[=content size/value=].
(<a href="https://github.com/WICG/turtledove/issues/986">WICG/turtledove#986</a>)
: [=content size/visibility=]
:: "<a for=visibility>`opaque`</a>"
1. Set |pendingConfig|'s [=fenced frame config/interest group descriptor=]'s
[=interest group descriptor/value=] to a [=struct=] with the following [=struct/items=]:
: owner
:: |winningBid|'s [=generated bid/interest group=]'s [=interest group/owner=]
: name
:: |winningBid|'s [=generated bid/interest group=]'s [=interest group/name=]
1. Let |fencedFrameReportingMap| be the [=map=] «[ "`buyer`" → «», "`seller`" → «» ]».
1. If |auctionConfig|'s [=auction config/component auctions=] is [=list/empty=], then [=map/set=]
|fencedFrameReportingMap|["`component-seller`"] to an empty [=list=] «».
1. Set |pendingConfig|'s [=fenced frame config/fenced frame reporting metadata=] to a [=struct=]
with the following [=struct/items=]:
: [=fenced frame reporting metadata/value=]
:: A [=struct=] with the following [=struct/items=]:
: [=fenced frame reporting metadata/fenced frame reporting map=]
:: |fencedFrameReportingMap|
: [=fenced frame reporting metadata/direct seller is seller=]
:: true if |auctionConfig|'s [=auction config/component auctions=] is [=list/empty=], false
otherwise
: [=fenced frame reporting metadata/allowed reporting origins=]
:: |winningBid|'s [=generated bid/bid ad=]'s [=interest group ad/allowed reporting origins=]
: [=fenced frame reporting metadata/visibility=]
:: "<a for=visibility>`opaque`</a>"
1. Set |pendingConfig|'s [=fenced frame config/on navigate callback=] to an algorithm with these
steps:
1. [=Asynchronously finish reporting=] with |pendingConfig|'s
[=fenced frame config/fenced frame reporting metadata=]'s
[=fenced frame reporting metadata/value=]'s
[=fenced frame reporting metadata/fenced frame reporting map=], |winningBidInfo|,
|auctionReportInfo| and |frameOrigin|.
1. Let |adComponentDescriptorsWithReplacements| be a new [=list=] of [=ad descriptors=].
1. If |winningBid|'s [=generated bid/ad component descriptors=] is not null:
1. [=list/For each=] |adComponentDescriptor| of |winningBid|'s
[=generated bid/ad component descriptors=]:
1. Let |descriptorWithReplacement| be a new [=ad descriptor=].
1. Set |descriptorWithReplacement|'s [=ad descriptor/size=] to
|adComponentDescriptor|'s [=ad descriptor/size=].
1. Set |descriptorWithReplacement|'s [=ad descriptor/url=] to the result of running
[=fencedframeutil/substitute macros=] with |replacements| and |adComponentDescriptor|'s
[=ad descriptor/url=].
1. [=list/Append=] |descriptorWithReplacement| to |adComponentDescriptorsWithReplacements|.
1. Set |pendingConfig|'s [=fenced frame config/nested configs=]'s [=nested configs/value=] to
the result of running [=create nested configs=] with |adComponentDescriptorsWithReplacements|.
1. Return |pendingConfig|.
</div>
<div algorithm>
To <dfn>asynchronously finish reporting</dfn> given a
[=fencedframetype/fenced frame reporting map=] |reportingMap|, [=leading bid info=] |leadingBidInfo|,
[=auction report info=] |auctionReportInfo|, and an [=origin=] |frameOrigin|:
1. [=Increment a winning bid's k-anonymity count=] given |leadingBidInfo|'s [=leading bid info/leading bid=].
1. If |leadingBidInfo|'s [=leading bid info/leading non-k-anon-enforced bid=] is
not null, and |leadingBidInfo|'s [=leading bid info/leading non-k-anon-enforced bid=]'s [=generated bid/id=]
≠ |leadingBidInfo|'s [=leading bid info/leading bid=]'s [=generated bid/id=],
[=increment a winning bid's k-anonymity count=] given
|leadingBidInfo|'s [=leading bid info/leading non-k-anon-enforced bid=].
1. Let |buyerDone|, |sellerDone|, and |componentSellerDone| be [=booleans=], initially false.
1. If |leadingBidInfo|'s [=leading bid info/component seller=] is null, set |componentSellerDone|