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chore: cherry-pick 81cb17c24788 from chromium #36311

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1 change: 1 addition & 0 deletions patches/chromium/.patches
Expand Up @@ -140,4 +140,5 @@ cherry-pick-06c87f9f42ff.patch
cherry-pick-67c9cbc784d6.patch
cherry-pick-a1cbf05b4163.patch
cherry-pick-ac4785387fff.patch
cherry-pick-81cb17c24788.patch
cherry-pick-1894458e04a2.patch
115 changes: 115 additions & 0 deletions patches/chromium/cherry-pick-81cb17c24788.patch
@@ -0,0 +1,115 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Christoph Schwering <schwering@google.com>
Date: Fri, 4 Nov 2022 00:56:32 +0000
Subject: Handle misaligned FormData, FormStructure.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This CL handles the case where the fields of the cached FormStructure
and the FormData are misaligned in
BrowserAutofillManager::WillFillCreditCardNumber.

(cherry picked from commit 1ad751f7dfa30a12a85824c291394b73c5c47eff)

Bug: 1376637, 1376639
Change-Id: Id7c3357a274b4d6624009ecf52b95a24cf3bfa1d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3965141
Commit-Queue: Christoph Schwering <schwering@google.com>
Quick-Run: Christoph Schwering <schwering@google.com>
Reviewed-by: Dominic Battré <battre@chromium.org>
Auto-Submit: Christoph Schwering <schwering@google.com>
Cr-Original-Commit-Position: refs/heads/main@{#1061790}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4003032
Commit-Queue: Dominic Battré <battre@chromium.org>
Cr-Commit-Position: refs/branch-heads/5249@{#907}
Cr-Branched-From: 4f7bea5de862aaa52e6bde5920755a9ef9db120b-refs/heads/main@{#1036826}

diff --git a/chrome/test/data/autofill/captured_sites/testcases.json b/chrome/test/data/autofill/captured_sites/testcases.json
index bb7ac2a638a410b3e83b9871314eae27aa8ef229..2e69d8f8532760103b9cccd5efc4ca7a4ad016a1 100644
--- a/chrome/test/data/autofill/captured_sites/testcases.json
+++ b/chrome/test/data/autofill/captured_sites/testcases.json
@@ -17,7 +17,7 @@
{ "site_name": "bath_and_body_works" },
{ "site_name": "beachbody" },
{ "site_name": "bed_bath_beyond" },
- { "site_name": "belk" },
+ { "site_name": "belk", "bug_number": 1376637 },
{ "site_name": "bestbuy" },
{ "site_name": "bhphotovideo", "bug_number":1173033 },
{ "site_name": "bloomingdales" },
diff --git a/components/autofill/core/browser/browser_autofill_manager.cc b/components/autofill/core/browser/browser_autofill_manager.cc
index 2dad433c7deb91a2d06f7a10077c9197bd2eba98..0a6e94a1f5327600c1c13cd6fd7586c7ca09037e 100644
--- a/components/autofill/core/browser/browser_autofill_manager.cc
+++ b/components/autofill/core/browser/browser_autofill_manager.cc
@@ -1069,26 +1069,36 @@ void BrowserAutofillManager::OnAskForValuesToFillImpl(

bool BrowserAutofillManager::WillFillCreditCardNumber(
const FormData& form,
- const FormFieldData& field) {
+ const FormFieldData& triggered_field_data) {
FormStructure* form_structure = nullptr;
- AutofillField* autofill_field = nullptr;
- if (!GetCachedFormAndField(form, field, &form_structure, &autofill_field))
+ AutofillField* triggered_field = nullptr;
+ if (!GetCachedFormAndField(form, triggered_field_data, &form_structure,
+ &triggered_field)) {
return false;
+ }

- if (autofill_field->Type().GetStorableType() == CREDIT_CARD_NUMBER)
+ if (triggered_field->Type().GetStorableType() == CREDIT_CARD_NUMBER)
return true;

- DCHECK_EQ(form_structure->field_count(), form.fields.size());
- for (size_t i = 0; i < form_structure->field_count(); ++i) {
- if (form_structure->field(i)->section == autofill_field->section &&
- form_structure->field(i)->Type().GetStorableType() ==
- CREDIT_CARD_NUMBER &&
- form.fields[i].value.empty() && !form.fields[i].is_autofilled) {
- return true;
- }
- }
+ // `form` is the latest version of the form received from the renderer and may
+ // be more up to date than the `form_structure` in the cache. Therefore, we
+ // need to validate for each `field` in the cache we try to fill whether
+ // it still exists in the renderer and whether it is fillable.
+ auto IsFillableField = [&form](FieldGlobalId id) {
+ auto it = base::ranges::find(form.fields, id, &FormFieldData::global_id);
+ return it != form.fields.end() && it->value.empty() && !it->is_autofilled;
+ };

- return false;
+ auto IsFillableCreditCardNumberField = [&triggered_field,
+ &IsFillableField](const auto& field) {
+ return field->Type().GetStorableType() == CREDIT_CARD_NUMBER &&
+ field->section == triggered_field->section &&
+ IsFillableField(field->global_id());
+ };
+
+ // This runs O(N^2) in the worst case, but usually there aren't too many
+ // credit card number fields in a form.
+ return base::ranges::any_of(*form_structure, IsFillableCreditCardNumberField);
}

void BrowserAutofillManager::FillOrPreviewCreditCardForm(
diff --git a/components/autofill/core/browser/browser_autofill_manager.h b/components/autofill/core/browser/browser_autofill_manager.h
index d6d33df90907dd1521108cfbae1ecbd430bb4e8e..03f92c993a05122b0df1e3b6afdad50edd9e1b41 100644
--- a/components/autofill/core/browser/browser_autofill_manager.h
+++ b/components/autofill/core/browser/browser_autofill_manager.h
@@ -475,11 +475,11 @@ class BrowserAutofillManager : public AutofillManager,
// profile does not exist.
AutofillProfile* GetProfile(int unique_id);

- // Determines whether a fill on |form| initiated from |field| will wind up
- // filling a credit card number. This is useful to determine if we will need
- // to unmask a card.
+ // Determines whether a fill on |form| initiated from |triggered_field| will
+ // wind up filling a credit card number. This is useful to determine if we
+ // will need to unmask a card.
bool WillFillCreditCardNumber(const FormData& form,
- const FormFieldData& field);
+ const FormFieldData& triggered_field);

// Fills or previews the credit card form.
// Assumes the form and field are valid.