[Payments] Cache payment manifests.

components/payments/content/android/payment_manifest_parser_android.cc

-// Copyright 2017 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "components/payments/content/android/payment_manifest_parser_android.h"
-
-#include <stddef.h>
-
-#include "base/android/jni_array.h"
-#include "base/android/jni_string.h"
-#include "base/bind.h"
-#include "base/logging.h"
-#include "base/memory/ptr_util.h"
-#include "base/numerics/safe_conversions.h"
-#include "jni/PaymentManifestParser_jni.h"
-#include "url/gurl.h"
-
-namespace payments {
-namespace {
-
-class ParseCallback {
- public:
-  explicit ParseCallback(const base::android::JavaParamRef<jobject>& jcallback)
-      : jcallback_(jcallback) {}
-
-  ~ParseCallback() {}
-
-  // Copies payment method manifest into Java.
-  void OnPaymentMethodManifestParsed(std::vector<GURL> web_app_manifest_urls) {
-    DCHECK_GE(100U, web_app_manifest_urls.size());
-    JNIEnv* env = base::android::AttachCurrentThread();
-
-    if (web_app_manifest_urls.empty()) {
-      // Can trigger synchronous deletion of PaymentManifestParserAndroid.
-      Java_ManifestParseCallback_onManifestParseFailure(env, jcallback_);
-      return;
-    }
-
-    base::android::ScopedJavaLocalRef<jobjectArray> juris =
-        Java_PaymentManifestParser_createWebAppManifestUris(
-            env, web_app_manifest_urls.size());
-
-    for (size_t i = 0; i < web_app_manifest_urls.size(); ++i) {
-      bool is_valid_uri = Java_PaymentManifestParser_addUri(
-          env, juris.obj(), base::checked_cast<int>(i),
-          base::android::ConvertUTF8ToJavaString(
-              env, web_app_manifest_urls[i].spec()));
-      DCHECK(is_valid_uri);
-    }
-
-    // Can trigger synchronous deletion of PaymentManifestParserAndroid.
-    Java_ManifestParseCallback_onPaymentMethodManifestParseSuccess(
-        env, jcallback_, juris.obj());
-  }
-
-  // Copies web app manifest into Java.
-  void OnWebAppManifestParsed(
-      std::vector<mojom::WebAppManifestSectionPtr> manifest) {
-    DCHECK_GE(100U, manifest.size());
-    JNIEnv* env = base::android::AttachCurrentThread();
-
-    if (manifest.empty()) {
-      // Can trigger synchronous deletion of PaymentManifestParserAndroid.
-      Java_ManifestParseCallback_onManifestParseFailure(env, jcallback_);
-      return;
-    }
-
-    base::android::ScopedJavaLocalRef<jobjectArray> jmanifest =
-        Java_PaymentManifestParser_createManifest(env, manifest.size());
-
-    for (size_t i = 0; i < manifest.size(); ++i) {
-      const mojom::WebAppManifestSectionPtr& section = manifest[i];
-      DCHECK_GE(100U, section->fingerprints.size());
-
-      Java_PaymentManifestParser_addSectionToManifest(
-          env, jmanifest.obj(), base::checked_cast<int>(i),
-          base::android::ConvertUTF8ToJavaString(env, section->id),
-          section->min_version,
-          base::checked_cast<int>(section->fingerprints.size()));
-
-      for (size_t j = 0; j < section->fingerprints.size(); ++j) {
-        const std::vector<uint8_t>& fingerprint = section->fingerprints[j];
-        Java_PaymentManifestParser_addFingerprintToSection(
-            env, jmanifest.obj(), base::checked_cast<int>(i),
-            base::checked_cast<int>(j),
-            base::android::ToJavaByteArray(env, fingerprint));
-      }
-    }
-
-    // Can trigger synchronous deletion of PaymentManifestParserAndroid.
-    Java_ManifestParseCallback_onWebAppManifestParseSuccess(env, jcallback_,
-                                                            jmanifest.obj());
-  }
-
- private:
-  base::android::ScopedJavaGlobalRef<jobject> jcallback_;
-
-  DISALLOW_COPY_AND_ASSIGN(ParseCallback);
-};
-
-}  // namespace
-
-PaymentManifestParserAndroid::PaymentManifestParserAndroid() {}
-
-PaymentManifestParserAndroid::~PaymentManifestParserAndroid() {}
-
-void PaymentManifestParserAndroid::StartUtilityProcess(
-    JNIEnv* env,
-    const base::android::JavaParamRef<jobject>& jcaller) {
-  host_.StartUtilityProcess();
-}
-
-void PaymentManifestParserAndroid::ParsePaymentMethodManifest(
-    JNIEnv* env,
-    const base::android::JavaParamRef<jobject>& jcaller,
-    const base::android::JavaParamRef<jstring>& jcontent,
-    const base::android::JavaParamRef<jobject>& jcallback) {
-  host_.ParsePaymentMethodManifest(
-      base::android::ConvertJavaStringToUTF8(env, jcontent),
-      base::BindOnce(&ParseCallback::OnPaymentMethodManifestParsed,
-                     base::MakeUnique<ParseCallback>(jcallback)));
-}
-
-void PaymentManifestParserAndroid::ParseWebAppManifest(
-    JNIEnv* env,
-    const base::android::JavaParamRef<jobject>& jcaller,
-    const base::android::JavaParamRef<jstring>& jcontent,
-    const base::android::JavaParamRef<jobject>& jcallback) {
-  host_.ParseWebAppManifest(
-      base::android::ConvertJavaStringToUTF8(env, jcontent),
-      base::BindOnce(&ParseCallback::OnWebAppManifestParsed,
-                     base::MakeUnique<ParseCallback>(jcallback)));
-}
-
-void PaymentManifestParserAndroid::StopUtilityProcess(
-    JNIEnv* env,
-    const base::android::JavaParamRef<jobject>& jcaller) {
-  delete this;
-}
-
-bool RegisterPaymentManifestParser(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
-// Caller owns the result.
-jlong CreatePaymentManifestParserAndroid(
-    JNIEnv* env,
-    const base::android::JavaParamRef<jclass>& jcaller) {
-  return reinterpret_cast<jlong>(new PaymentManifestParserAndroid);
-}
-
-}  // namespace payments