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Remove Bidding Signals Format "V1" support #1390

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Remove Bidding Signals Format "V1" support #1390

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7af0cd7
Remove Bidding Signals Format "V1" support
MattMenke2 Jan 28, 2025
e8a8a0e
Update spec.bs
MattMenke2 Jan 28, 2025
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19 changes: 6 additions & 13 deletions spec.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -2658,8 +2658,6 @@ To <dfn>fetch WebAssembly</dfn> given a [=URL=] |url| and an [=environment setti

The <dfn http-header><code>Data-Version</code></dfn> HTTP response header is a
[=structured header=] whose value must be an [=structured header/integer=].
The <dfn http-header><code>X-fledge-bidding-signals-format-version</code></dfn> HTTP response header
is a [=structured header=] whose value must be an [=structured header/integer=].

<div algorithm>
To <dfn>fetch trusted signals</dfn> given a [=URL=] |url|, an [=origin=] |scriptOrigin|, a
Expand Down Expand Up @@ -2690,7 +2688,6 @@ To <dfn>fetch trusted signals</dfn> given a [=URL=] |url|, an [=origin=] |script

1. Let |signals| be null.
1. Let |dataVersion| be null.
1. Let |formatVersion| be null.
1. Let |perInterestGroupData| be an [=ordered map=] whose [=map/keys=] are [=interest group/name=]
[=strings=] and whose [=map/values=] are [=bidding signals per interest group data=].
1. [=Fetch=] |request| with [=fetch/useParallelQueue=] set to true, and
Expand All @@ -2704,20 +2701,16 @@ To <dfn>fetch trusted signals</dfn> given a [=URL=] |url|, an [=origin=] |script
1. If |dataVersion| is not null:
1. If |dataVersion| is not an integer, or is less than 0 or more than 2<sup>32</sup>&minus;1,
set |signals| to failure and return.
1. If |isBiddingSignal| is true, then set |formatVersion| to the result of
[=header list/getting a structured field value=] given
[:X-fledge-bidding-signals-format-version:] and "`item`" from |headers|.
1. Set |signals| to the result of [=parsing JSON bytes to an Infra value=] |responseBody|.
1. Wait for |signals| to be set.
1. If |signals| is a parsing exception, or if |signals| is not an [=ordered map=], return « null,
null, null ».
1. If |formatVersion| is 2:
1. If |signals|["`keys`"] does not [=map/exist=], return « null, null ».
1. Set |signals| to |signals|["`keys`"].
1. If |signals| is not an [=ordered map=], return « null, null ».
1. If |signals|["`perInterestGroupData`"] [=map/exists=] and is an [=ordered map=]:
1. [=Assert=] |isBiddingSignal| is true.
1. Let |perInterestGroupData| be |signals|["`perInterestGroupData`"].
1. If |signals|["`keys`"] does not [=map/exist=], return « null, null ».
1. Set |signals| to |signals|["`keys`"].
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This is a little awkward, and this entire method has a bunch of bugs (e.g., line 2711 should be before we set signals, a bunch of the returns only return two values instead of three, some places "set |signals| to null and return failure" (signals isn't even being returned, and wasn't passed in by the caller, so setting it to null doesn't do anything), etc.

I think fixing all of that is beyond the scope of this PR.

1. If |signals| is not an [=ordered map=], return « null, null ».
1. If |signals|["`perInterestGroupData`"] [=map/exists=] and is an [=ordered map=]:
1. [=Assert=] |isBiddingSignal| is true.
1. Let |perInterestGroupData| be |signals|["`perInterestGroupData`"].
1. [=map/For each=] |key| → |value| of |signals|:
1. [=map/Set=] |signals|[|key|] to the result of [=serializing an Infra value to a JSON string=]
given |value|.
Expand Down