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// Copyright 2017 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/autofill/core/browser/geo/subkey_requester.h"
#include <memory>
#include <utility>
#include "base/cancelable_callback.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/raw_ptr.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task/sequenced_task_runner.h"
#include "base/time/time.h"
#include "third_party/libaddressinput/chromium/chrome_address_validator.h"
#include "third_party/libaddressinput/src/cpp/include/libaddressinput/address_data.h"
#include "third_party/libaddressinput/src/cpp/include/libaddressinput/source.h"
#include "third_party/libaddressinput/src/cpp/include/libaddressinput/storage.h"
#if BUILDFLAG(IS_ANDROID)
#include "base/android/jni_android.h"
#include "base/android/jni_array.h"
#include "base/android/jni_string.h"
#include "components/autofill/android/main_autofill_jni_headers/SubKeyRequester_jni.h"
#endif // BUILDFLAG(IS_ANDROID)
namespace autofill {
namespace {
using ::i18n::addressinput::Source;
using ::i18n::addressinput::Storage;
class SubKeyRequest : public SubKeyRequester::Request {
public:
// The |delegate| and |address_validator| need to outlive this Request.
SubKeyRequest(const std::string& region_code,
const std::string& language,
int timeout_seconds,
AddressValidator* address_validator,
SubKeyReceiverCallback on_subkeys_received)
: region_code_(region_code),
language_(language),
address_validator_(address_validator),
on_subkeys_received_(std::move(on_subkeys_received)),
on_timeout_(base::BindOnce(&SubKeyRequest::OnRulesLoaded,
base::Unretained(this))) {
base::SequencedTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE, on_timeout_.callback(), base::Seconds(timeout_seconds));
}
SubKeyRequest(const SubKeyRequest&) = delete;
SubKeyRequest& operator=(const SubKeyRequest&) = delete;
~SubKeyRequest() override { on_timeout_.Cancel(); }
void OnRulesLoaded() override {
on_timeout_.Cancel();
// Check if the timeout happened before the rules were loaded.
if (has_responded_)
return;
has_responded_ = true;
auto subkeys =
address_validator_->GetRegionSubKeys(region_code_, language_);
std::vector<std::string> subkeys_codes;
std::vector<std::string> subkeys_names;
for (const auto& [code, name] : subkeys) {
subkeys_codes.push_back(code);
subkeys_names.push_back(name);
}
std::move(on_subkeys_received_).Run(subkeys_codes, subkeys_names);
}
private:
std::string region_code_;
std::string language_;
// Not owned. Never null. Outlive this object.
raw_ptr<AddressValidator> address_validator_;
SubKeyReceiverCallback on_subkeys_received_;
bool has_responded_ = false;
base::CancelableOnceClosure on_timeout_;
};
#if BUILDFLAG(IS_ANDROID)
void OnSubKeysReceived(base::android::ScopedJavaGlobalRef<jobject> jdelegate,
const std::vector<std::string>& subkeys_codes,
const std::vector<std::string>& subkeys_names) {
JNIEnv* env = base::android::AttachCurrentThread();
Java_GetSubKeysRequestDelegate_onSubKeysReceived(
env, jdelegate, base::android::ToJavaArrayOfStrings(env, subkeys_codes),
base::android::ToJavaArrayOfStrings(env, subkeys_names));
}
#endif // BUILDFLAG(IS_ANDROID)
} // namespace
SubKeyRequester::SubKeyRequester(std::unique_ptr<Source> source,
std::unique_ptr<Storage> storage,
const std::string& language)
: address_validator_(std::move(source), std::move(storage), this),
language_(language) {}
SubKeyRequester::~SubKeyRequester() = default;
void SubKeyRequester::StartRegionSubKeysRequest(const std::string& region_code,
int timeout_seconds,
SubKeyReceiverCallback cb) {
DCHECK(timeout_seconds >= 0);
std::unique_ptr<SubKeyRequest> request(
std::make_unique<SubKeyRequest>(region_code, language_, timeout_seconds,
&address_validator_, std::move(cb)));
if (AreRulesLoadedForRegion(region_code)) {
request->OnRulesLoaded();
} else {
// Setup the variables so that the subkeys request is sent, when the rules
// are loaded.
pending_subkey_region_code_ = region_code;
pending_subkey_request_ = std::move(request);
// Start loading the rules for that region. If the rules were already in the
// process of being loaded, this call will do nothing.
LoadRulesForRegion(region_code);
}
}
bool SubKeyRequester::AreRulesLoadedForRegion(const std::string& region_code) {
return address_validator_.AreRulesLoadedForRegion(region_code);
}
void SubKeyRequester::LoadRulesForRegion(const std::string& region_code) {
address_validator_.LoadRules(region_code);
}
void SubKeyRequester::OnAddressValidationRulesLoaded(
const std::string& region_code,
bool success) {
// The case for |success| == false is already handled. if |success| == false,
// AddressValidator::GetRegionSubKeys will return an empty list of subkeys.
// Therefore, here, we can ignore the value of |success|.
// Check if there is any subkey request for that region code.
if (pending_subkey_request_ &&
!pending_subkey_region_code_.compare(region_code)) {
pending_subkey_request_->OnRulesLoaded();
}
pending_subkey_region_code_.clear();
pending_subkey_request_.reset();
}
void SubKeyRequester::CancelPendingGetSubKeys() {
pending_subkey_region_code_.clear();
pending_subkey_request_.reset();
}
#if BUILDFLAG(IS_ANDROID)
base::android::ScopedJavaLocalRef<jobject> SubKeyRequester::GetJavaObject() {
if (!java_ref_) {
java_ref_.Reset(
Java_SubKeyRequester_Constructor(base::android::AttachCurrentThread(),
reinterpret_cast<intptr_t>(this)));
}
return base::android::ScopedJavaLocalRef<jobject>(java_ref_);
}
void SubKeyRequester::LoadRulesForSubKeys(
JNIEnv* env,
const base::android::JavaParamRef<jstring>& jregion_code) {
LoadRulesForRegion(base::android::ConvertJavaStringToUTF8(env, jregion_code));
}
void SubKeyRequester::StartRegionSubKeysRequest(
JNIEnv* env,
const base::android::JavaParamRef<jstring>& jregion_code,
jint jtimeout_seconds,
const base::android::JavaParamRef<jobject>& jdelegate) {
const std::string region_code =
base::android::ConvertJavaStringToUTF8(env, jregion_code);
base::android::ScopedJavaGlobalRef<jobject> my_jdelegate;
my_jdelegate.Reset(env, jdelegate);
SubKeyReceiverCallback cb =
base::BindOnce(&OnSubKeysReceived,
base::android::ScopedJavaGlobalRef<jobject>(my_jdelegate));
StartRegionSubKeysRequest(region_code, jtimeout_seconds, std::move(cb));
}
void SubKeyRequester::CancelPendingGetSubKeys(JNIEnv* env) {
CancelPendingGetSubKeys();
}
#endif // BUILDFLAG(IS_ANDROID)
} // namespace autofill
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