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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/ntp_tiles/enterprise/enterprise_shortcuts_store.h"
#include <string>
#include "base/strings/utf_string_conversions.h"
#include "components/ntp_tiles/custom_links_util.h"
#include "components/ntp_tiles/pref_names.h"
#include "components/prefs/pref_service.h"
namespace ntp_tiles {
namespace {
// Parses an EnterpriseShortcut stored in prefs. Returns nullopt if the data is
// malformed.
std::optional<EnterpriseShortcut> EnterpriseShortcutFromDict(
const base::Value::Dict& dict) {
const std::string* url_string =
dict.FindString(EnterpriseShortcutsStore::kDictionaryKeyUrl);
const std::string* title_string =
dict.FindString(EnterpriseShortcutsStore::kDictionaryKeyTitle);
const std::optional<int> policy_origin_value =
dict.FindInt(EnterpriseShortcutsStore::kDictionaryKeyPolicyOrigin);
const std::optional<bool> hidden_by_user_value =
dict.FindBool(EnterpriseShortcutsStore::kDictionaryKeyIsHiddenByUser);
const std::optional<bool> allow_user_edit_value =
dict.FindBool(EnterpriseShortcutsStore::kDictionaryKeyAllowUserEdit);
const std::optional<bool> allow_user_delete_value =
dict.FindBool(EnterpriseShortcutsStore::kDictionaryKeyAllowUserDelete);
if (!url_string || !title_string) {
return std::nullopt;
}
GURL url(*url_string);
if (!url.is_valid()) {
return std::nullopt;
}
// Assume false if this value was not stored.
EnterpriseShortcut link;
link.url = std::move(url);
link.title = base::UTF8ToUTF16(*title_string);
link.policy_origin = static_cast<EnterpriseShortcut::PolicyOrigin>(
policy_origin_value.value_or(
static_cast<int>(EnterpriseShortcut::PolicyOrigin::kNoPolicy)));
link.is_hidden_by_user = hidden_by_user_value.value_or(false);
link.allow_user_edit = allow_user_edit_value.value_or(false);
link.allow_user_delete = allow_user_delete_value.value_or(false);
return link;
}
} // namespace
const char EnterpriseShortcutsStore::kDictionaryKeyUrl[] = "url";
const char EnterpriseShortcutsStore::kDictionaryKeyTitle[] = "title";
const char EnterpriseShortcutsStore::kDictionaryKeyPolicyOrigin[] =
"policyOrigin";
const char EnterpriseShortcutsStore::kDictionaryKeyIsHiddenByUser[] =
"isHiddenByUser";
const char EnterpriseShortcutsStore::kDictionaryKeyAllowUserEdit[] =
"allowUserEdit";
const char EnterpriseShortcutsStore::kDictionaryKeyAllowUserDelete[] =
"allowUserDelete";
EnterpriseShortcutsStore::EnterpriseShortcutsStore(PrefService* prefs)
: prefs_(prefs) {
DCHECK(prefs);
base::RepeatingClosure callback =
base::BindRepeating(&EnterpriseShortcutsStore::OnPreferenceChanged,
weak_ptr_factory_.GetWeakPtr());
pref_change_registrar_.Init(prefs_);
pref_change_registrar_.Add(prefs::kEnterpriseShortcutsPolicyList, callback);
}
EnterpriseShortcutsStore::~EnterpriseShortcutsStore() = default;
std::vector<EnterpriseShortcut> EnterpriseShortcutsStore::RetrieveLinks() {
std::vector<EnterpriseShortcut> user_links = RetrieveUserLinks();
return !user_links.empty() ? user_links : RetrievePolicyLinks();
}
std::vector<EnterpriseShortcut> EnterpriseShortcutsStore::RetrieveUserLinks() {
return RetrieveLinksFromPrefs(prefs::kEnterpriseShortcutsUserList);
}
std::vector<EnterpriseShortcut>
EnterpriseShortcutsStore::RetrievePolicyLinks() {
return RetrieveLinksFromPrefs(prefs::kEnterpriseShortcutsPolicyList);
}
std::vector<EnterpriseShortcut>
EnterpriseShortcutsStore::RetrieveLinksFromPrefs(std::string_view pref_path) {
std::vector<EnterpriseShortcut> links;
const base::Value::List& stored_links = prefs_->GetList(pref_path);
for (const base::Value& link : stored_links) {
std::optional<EnterpriseShortcut> link_to_add =
EnterpriseShortcutFromDict(link.GetDict());
// `link_to_add` has no value if it contains an invalid link. Stop
// processing links if so.
if (!link_to_add.has_value()) {
links.clear();
return links;
}
links.emplace_back(link_to_add.value());
}
return links;
}
void EnterpriseShortcutsStore::StoreLinks(
const std::vector<EnterpriseShortcut>& links) {
base::Value::List new_link_list;
for (const EnterpriseShortcut& link : links) {
base::Value::Dict new_link;
new_link.Set(kDictionaryKeyUrl, link.url.spec());
new_link.Set(kDictionaryKeyTitle, link.title);
new_link.Set(kDictionaryKeyPolicyOrigin,
static_cast<int>(link.policy_origin));
new_link.Set(kDictionaryKeyIsHiddenByUser, link.is_hidden_by_user);
new_link.Set(kDictionaryKeyAllowUserEdit, link.allow_user_edit);
new_link.Set(kDictionaryKeyAllowUserDelete, link.allow_user_delete);
new_link_list.Append(std::move(new_link));
}
prefs_->SetList(prefs::kEnterpriseShortcutsUserList,
std::move(new_link_list));
}
void EnterpriseShortcutsStore::ClearLinks() {
prefs_->ClearPref(prefs::kEnterpriseShortcutsUserList);
}
void EnterpriseShortcutsStore::MergeLinkFromPolicy(
std::vector<EnterpriseShortcut>& list_links,
const EnterpriseShortcut& link_from_policy) {
if (!link_from_policy.url.is_valid()) {
return;
}
auto it = custom_links_util::FindLinkWithUrl<EnterpriseShortcut>(
list_links, link_from_policy.url);
if (it == list_links.end()) {
// Current list does not already have link so add new link.
list_links.push_back(link_from_policy);
} else {
// Current list already has link so update existing link.
it->allow_user_edit = link_from_policy.allow_user_edit;
// Force `is_hidden_by_user` back to false if `allow_user_delete` is false.
it->allow_user_delete = link_from_policy.allow_user_delete;
if (!it->allow_user_delete) {
it->is_hidden_by_user = false;
}
// Do not update `title` if user has modified this link already.
if (it->policy_origin != EnterpriseShortcut::PolicyOrigin::kNoPolicy) {
it->title = link_from_policy.title;
}
}
}
void EnterpriseShortcutsStore::OnPreferenceChanged() {
std::vector<EnterpriseShortcut> policy_links = RetrievePolicyLinks();
std::vector<EnterpriseShortcut> list_user_links = RetrieveUserLinks();
if (policy_links.empty()) {
// If the policy is removed or empty, clear all user links.
ClearLinks();
closure_list_.Notify();
return;
}
// If the user links list is empty, do nothing. `RetrieveLinks` will return
// the policy links.
if (list_user_links.empty()) {
closure_list_.Notify();
return;
}
// If there are user modifications, merge policy changes with user changes.
for (const EnterpriseShortcut& link : policy_links) {
MergeLinkFromPolicy(list_user_links, link);
}
std::erase_if(list_user_links, [&](const EnterpriseShortcut& link) {
return std::ranges::find(policy_links, link.url,
&EnterpriseShortcut::url) == policy_links.end();
});
StoreLinks(list_user_links);
closure_list_.Notify();
}
base::CallbackListSubscription
EnterpriseShortcutsStore::RegisterCallbackForOnChanged(
base::RepeatingClosure callback) {
return closure_list_.Add(callback);
}
// static
void EnterpriseShortcutsStore::RegisterProfilePrefs(
PrefRegistrySimple* user_prefs) {
user_prefs->RegisterListPref(prefs::kEnterpriseShortcutsUserList);
user_prefs->RegisterListPref(prefs::kEnterpriseShortcutsPolicyList);
}
} // namespace ntp_tiles
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