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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/webui/nearby_internals/nearby_internals_contact_handler.h"
#include <string>
#include <utility>
#include "base/functional/bind.h"
#include "base/json/json_writer.h"
#include "base/time/time.h"
#include "chrome/browser/nearby_sharing/logging/proto_to_dictionary_conversion.h"
#include "chrome/browser/nearby_sharing/nearby_sharing_service.h"
#include "chrome/browser/nearby_sharing/nearby_sharing_service_factory.h"
#include "components/cross_device/logging/logging.h"
namespace {
std::string FormatListAsJSON(const base::Value::List& list) {
std::string json;
base::JSONWriter::WriteWithOptions(
list, base::JSONWriter::OPTIONS_PRETTY_PRINT, &json);
return json;
}
base::Value GetJavascriptTimestamp() {
return base::Value(
base::Time::Now().InMillisecondsFSinceUnixEpochIgnoringNull());
}
// Keys in the JSON representation of a contact message
const char kContactMessageTimeKey[] = "time";
const char kContactMessageContactsChangedKey[] = "contactsChanged";
const char kContactMessageAllowedIdsKey[] = "allowedIds";
const char kContactMessageContactRecordKey[] = "contactRecords";
const char kContactMessageNumUnreachableContactsKey[] =
"numUnreachableContacts";
// Converts Contact to a raw dictionary value used as a JSON argument to
// JavaScript functions.
// TODO(nohle): We should probably break up this dictionary into smaller
// dictionaries corresponding to each contact-manager observer functions. This
// will require changes at the javascript layer as well.
base::Value::Dict ContactMessageToDictionary(
std::optional<bool> did_contacts_change_since_last_upload,
const std::optional<std::set<std::string>>& allowed_contact_ids,
const std::optional<std::vector<nearby::sharing::proto::ContactRecord>>&
contacts,
std::optional<uint32_t> num_unreachable_contacts_filtered_out) {
base::Value::Dict dictionary;
dictionary.Set(kContactMessageTimeKey, GetJavascriptTimestamp());
if (did_contacts_change_since_last_upload.has_value()) {
dictionary.Set(kContactMessageContactsChangedKey,
*did_contacts_change_since_last_upload);
}
if (allowed_contact_ids) {
base::Value::List allowed_ids_list;
allowed_ids_list.reserve(allowed_contact_ids->size());
for (const auto& contact_id : *allowed_contact_ids) {
allowed_ids_list.Append(contact_id);
}
dictionary.Set(kContactMessageAllowedIdsKey,
FormatListAsJSON(allowed_ids_list));
}
if (contacts) {
base::Value::List contact_list;
contact_list.reserve(contacts->size());
for (const auto& contact : *contacts) {
contact_list.Append(ContactRecordToReadableDictionary(contact));
}
dictionary.Set(kContactMessageContactRecordKey,
FormatListAsJSON(contact_list));
}
if (num_unreachable_contacts_filtered_out.has_value()) {
dictionary.Set(kContactMessageNumUnreachableContactsKey,
int(*num_unreachable_contacts_filtered_out));
}
return dictionary;
}
} // namespace
NearbyInternalsContactHandler::NearbyInternalsContactHandler(
content::BrowserContext* context)
: context_(context) {}
NearbyInternalsContactHandler::~NearbyInternalsContactHandler() = default;
void NearbyInternalsContactHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback(
"initializeContacts",
base::BindRepeating(&NearbyInternalsContactHandler::InitializeContents,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"downloadContacts",
base::BindRepeating(
&NearbyInternalsContactHandler::HandleDownloadContacts,
base::Unretained(this)));
}
void NearbyInternalsContactHandler::OnJavascriptAllowed() {
NearbySharingService* service_ =
NearbySharingServiceFactory::GetForBrowserContext(context_);
if (service_) {
observation_.Observe(service_->GetContactManager());
} else {
CD_LOG(ERROR, Feature::NS) << "No NearbyShareService instance to call.";
}
}
void NearbyInternalsContactHandler::OnJavascriptDisallowed() {
observation_.Reset();
}
void NearbyInternalsContactHandler::InitializeContents(
const base::Value::List& args) {
AllowJavascript();
}
void NearbyInternalsContactHandler::HandleDownloadContacts(
const base::Value::List& args) {
NearbySharingService* service_ =
NearbySharingServiceFactory::GetForBrowserContext(context_);
if (service_) {
service_->GetContactManager()->DownloadContacts();
} else {
CD_LOG(ERROR, Feature::NS) << "No NearbyShareService instance to call.";
}
}
void NearbyInternalsContactHandler::OnContactsDownloaded(
const std::set<std::string>& allowed_contact_ids,
const std::vector<nearby::sharing::proto::ContactRecord>& contacts,
uint32_t num_unreachable_contacts_filtered_out) {
FireWebUIListener("contacts-updated",
ContactMessageToDictionary(
/*did_contacts_change_since_last_upload=*/std::nullopt,
allowed_contact_ids, contacts,
num_unreachable_contacts_filtered_out));
}
void NearbyInternalsContactHandler::OnContactsUploaded(
bool did_contacts_change_since_last_upload) {
FireWebUIListener(
"contacts-updated",
ContactMessageToDictionary(
did_contacts_change_since_last_upload,
/*allowed_contact_ids=*/std::nullopt,
/*contacts=*/std::nullopt,
/*num_unreachable_contacts_filtered_out=*/std::nullopt));
}
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