Android: Add AndroidHTTPDownloader class

android/app/src/cpp/CMakeLists.txt

@@ -3,6 +3,8 @@ set(SRCS
   android_controller_interface.h
   android_host_interface.cpp
   android_host_interface.h
+  android_http_downloader.cpp
+  android_http_downloader.h
   android_progress_callback.cpp
   android_progress_callback.h
   android_settings_interface.cpp

android/app/src/cpp/android_controller_interface.h

@@ -1,6 +1,6 @@
 #pragma once
-#include "frontend-common/controller_interface.h"
 #include "core/types.h"
+#include "frontend-common/controller_interface.h"
 #include <array>
 #include <functional>
 #include <mutex>

android/app/src/cpp/android_host_interface.cpp

@@ -55,6 +55,11 @@ static jclass s_SaveStateInfo_class;
 static jmethodID s_SaveStateInfo_constructor;
 
 namespace AndroidHelpers {
+JavaVM* GetJavaVM()
+{
+  return s_jvm;
+}
+
 // helper for retrieving the current per-thread jni environment
 JNIEnv* GetJNIEnv()
 {

android/app/src/cpp/android_host_interface.h

@@ -109,6 +109,7 @@ private:
 
 namespace AndroidHelpers {
 
+JavaVM* GetJavaVM();
 JNIEnv* GetJNIEnv();
 AndroidHostInterface* GetNativeClass(JNIEnv* env, jobject obj);
 std::string JStringToString(JNIEnv* env, jstring str);

android/app/src/cpp/android_http_downloader.cpp

@@ -0,0 +1,162 @@
+#include "android_http_downloader.h"
+#include "android_host_interface.h"
+#include "common/assert.h"
+#include "common/log.h"
+#include "common/string_util.h"
+#include "common/timer.h"
+#include <algorithm>
+#include <functional>
+Log_SetChannel(AndroidHTTPDownloader);
+
+namespace FrontendCommon {
+
+AndroidHTTPDownloader::AndroidHTTPDownloader() : HTTPDownloader() {}
+
+AndroidHTTPDownloader::~AndroidHTTPDownloader()
+{
+  JNIEnv* env = AndroidHelpers::GetJNIEnv();
+  if (m_URLDownloader_class)
+    env->DeleteGlobalRef(m_URLDownloader_class);
+}
+
+std::unique_ptr<HTTPDownloader> HTTPDownloader::Create()
+{
+  std::unique_ptr<AndroidHTTPDownloader> instance(std::make_unique<AndroidHTTPDownloader>());
+  if (!instance->Initialize())
+    return {};
+
+  return instance;
+}
+
+bool AndroidHTTPDownloader::Initialize()
+{
+  JNIEnv* env = AndroidHelpers::GetJNIEnv();
+  jclass klass = env->FindClass("com/github/stenzek/duckstation/URLDownloader");
+  if (!klass)
+    return false;
+
+  m_URLDownloader_class = static_cast<jclass>(env->NewGlobalRef(klass));
+  if (!m_URLDownloader_class)
+    return false;
+
+  m_URLDownloader_constructor = env->GetMethodID(klass, "<init>", "()V");
+  m_URLDownloader_get = env->GetMethodID(klass, "get", "(Ljava/lang/String;)Z");
+  m_URLDownloader_post = env->GetMethodID(klass, "post", "(Ljava/lang/String;[B)Z");
+  m_URLDownloader_getStatusCode = env->GetMethodID(klass, "getStatusCode", "()I");
+  m_URLDownloader_getData = env->GetMethodID(klass, "getData", "()[B");
+  if (!m_URLDownloader_constructor || !m_URLDownloader_get || !m_URLDownloader_post || !m_URLDownloader_getStatusCode ||
+      !m_URLDownloader_getData)
+  {
+    return false;
+  }
+
+  m_thread_pool = std::make_unique<cb::ThreadPool>(m_max_active_requests);
+  return true;
+}
+
+void AndroidHTTPDownloader::ProcessRequest(Request* req)
+{
+  std::unique_lock<std::mutex> cancel_lock(m_cancel_mutex);
+  if (req->closed.load())
+    return;
+
+  cancel_lock.unlock();
+  req->status_code = -1;
+  req->start_time = Common::Timer::GetValue();
+
+  // TODO: Move to Java side...
+  JNIEnv* env;
+  if (AndroidHelpers::GetJavaVM()->AttachCurrentThread(&env, nullptr) == JNI_OK)
+  {
+    jobject obj = env->NewObject(m_URLDownloader_class, m_URLDownloader_constructor);
+    jstring url_string = env->NewStringUTF(req->url.c_str());
+    jboolean result;
+    if (req->post_data.empty())
+    {
+      result = env->CallBooleanMethod(obj, m_URLDownloader_get, url_string);
+    }
+    else
+    {
+      jbyteArray post_data = env->NewByteArray(static_cast<jsize>(req->post_data.size()));
+      env->SetByteArrayRegion(post_data, 0, static_cast<jsize>(req->post_data.size()),
+                              reinterpret_cast<const jbyte*>(req->post_data.data()));
+      result = env->CallBooleanMethod(obj, m_URLDownloader_post, url_string, post_data);
+      env->DeleteLocalRef(post_data);
+    }
+
+    env->DeleteLocalRef(url_string);
+
+    if (result)
+    {
+      req->status_code = env->CallIntMethod(obj, m_URLDownloader_getStatusCode);
+
+      jbyteArray data = reinterpret_cast<jbyteArray>(env->CallObjectMethod(obj, m_URLDownloader_getData));
+      if (data)
+      {
+        const u32 size = static_cast<u32>(env->GetArrayLength(data));
+        req->data.resize(size);
+        if (size > 0)
+        {
+          jbyte* data_ptr = env->GetByteArrayElements(data, nullptr);
+          std::memcpy(req->data.data(), data_ptr, size);
+          env->ReleaseByteArrayElements(data, data_ptr, 0);
+        }
+
+        env->DeleteLocalRef(data);
+      }
+
+      Log_DevPrintf("Request for '%s' returned status code %d and %zu bytes", req->url.c_str(), req->status_code,
+                    req->data.size());
+    }
+    else
+    {
+      Log_ErrorPrintf("Request for '%s' failed", req->url.c_str());
+    }
+
+    env->DeleteLocalRef(obj);
+  }
+  else
+  {
+    Log_ErrorPrintf("AttachCurrentThread() failed");
+  }
+
+  cancel_lock.lock();
+  req->state = Request::State::Complete;
+  if (req->closed.load())
+    delete req;
+  else
+    req->closed.store(true);
+}
+
+HTTPDownloader::Request* AndroidHTTPDownloader::InternalCreateRequest()
+{
+  Request* req = new Request();
+  return req;
+}
+
+void AndroidHTTPDownloader::InternalPollRequests()
+{
+  // noop - uses thread pool
+}
+
+bool AndroidHTTPDownloader::StartRequest(HTTPDownloader::Request* request)
+{
+  Request* req = static_cast<Request*>(request);
+  Log_DevPrintf("Started HTTP request for '%s'", req->url.c_str());
+  req->state = Request::State::Started;
+  req->start_time = Common::Timer::GetValue();
+  m_thread_pool->Schedule(std::bind(&AndroidHTTPDownloader::ProcessRequest, this, req));
+  return true;
+}
+
+void AndroidHTTPDownloader::CloseRequest(HTTPDownloader::Request* request)
+{
+  std::unique_lock<std::mutex> cancel_lock(m_cancel_mutex);
+  Request* req = static_cast<Request*>(request);
+  if (req->closed.load())
+    delete req;
+  else
+    req->closed.store(true);
+}
+
+} // namespace FrontendCommon

android/app/src/cpp/android_http_downloader.h

@@ -0,0 +1,44 @@
+#pragma once
+#include "common/thirdparty/thread_pool.h"
+#include "frontend-common/http_downloader.h"
+#include <atomic>
+#include <jni.h>
+#include <memory>
+#include <mutex>
+
+namespace FrontendCommon {
+
+class AndroidHTTPDownloader final : public HTTPDownloader
+{
+public:
+  AndroidHTTPDownloader();
+  ~AndroidHTTPDownloader() override;
+
+  bool Initialize();
+
+protected:
+  Request* InternalCreateRequest() override;
+  void InternalPollRequests() override;
+  bool StartRequest(HTTPDownloader::Request* request) override;
+  void CloseRequest(HTTPDownloader::Request* request) override;
+
+private:
+  struct Request : HTTPDownloader::Request
+  {
+    std::atomic_bool closed{false};
+  };
+
+  void ProcessRequest(Request* req);
+
+  std::unique_ptr<cb::ThreadPool> m_thread_pool;
+  std::mutex m_cancel_mutex;
+
+  jclass m_URLDownloader_class = nullptr;
+  jmethodID m_URLDownloader_constructor = nullptr;
+  jmethodID m_URLDownloader_get = nullptr;
+  jmethodID m_URLDownloader_post = nullptr;
+  jmethodID m_URLDownloader_getStatusCode = nullptr;
+  jmethodID m_URLDownloader_getData = nullptr;
+};
+
+} // namespace FrontendCommon

android/app/src/cpp/android_progress_callback.cpp

@@ -1,11 +1,10 @@
 #include "android_progress_callback.h"
 #include "android_host_interface.h"
-#include "common/log.h"
 #include "common/assert.h"
+#include "common/log.h"
 Log_SetChannel(AndroidProgressCallback);
 
-AndroidProgressCallback::AndroidProgressCallback(JNIEnv* env, jobject java_object)
-  : m_java_object(java_object)
+AndroidProgressCallback::AndroidProgressCallback(JNIEnv* env, jobject java_object) : m_java_object(java_object)
 {
   jclass cls = env->GetObjectClass(java_object);
   m_set_title_method = env->GetMethodID(cls, "setTitle", "(Ljava/lang/String;)V");
@@ -15,7 +14,8 @@ AndroidProgressCallback::AndroidProgressCallback(JNIEnv* env, jobject java_objec
   m_modal_error_method = env->GetMethodID(cls, "modalError", "(Ljava/lang/String;)V");
   m_modal_information_method = env->GetMethodID(cls, "modalInformation", "(Ljava/lang/String;)V");
   m_modal_confirmation_method = env->GetMethodID(cls, "modalConfirmation", "(Ljava/lang/String;)Z");
-  Assert(m_set_status_text_method && m_set_progress_range_method && m_set_progress_value_method && m_modal_error_method && m_modal_information_method && m_modal_confirmation_method);
+  Assert(m_set_status_text_method && m_set_progress_range_method && m_set_progress_value_method &&
+         m_modal_error_method && m_modal_information_method && m_modal_confirmation_method);
 }
 
 AndroidProgressCallback::~AndroidProgressCallback() = default;

android/app/src/cpp/android_settings_interface.cpp

@@ -56,16 +56,25 @@ AndroidSettingsInterface::AndroidSettingsInterface(jobject java_context)
   Assert(m_get_boolean && m_get_int && m_get_float && m_get_string && m_get_string_set && m_set_to_array);
 
   m_edit = env->GetMethodID(m_shared_preferences_class, "edit", "()Landroid/content/SharedPreferences$Editor;");
-  m_edit_set_string = env->GetMethodID(m_shared_preferences_editor_class, "putString", "(Ljava/lang/String;Ljava/lang/String;)Landroid/content/SharedPreferences$Editor;");
+  m_edit_set_string =
+    env->GetMethodID(m_shared_preferences_editor_class, "putString",
+                     "(Ljava/lang/String;Ljava/lang/String;)Landroid/content/SharedPreferences$Editor;");
   m_edit_commit = env->GetMethodID(m_shared_preferences_editor_class, "commit", "()Z");
-  m_edit_remove = env->GetMethodID(m_shared_preferences_editor_class, "remove", "(Ljava/lang/String;)Landroid/content/SharedPreferences$Editor;");
+  m_edit_remove = env->GetMethodID(m_shared_preferences_editor_class, "remove",
+                                   "(Ljava/lang/String;)Landroid/content/SharedPreferences$Editor;");
   Assert(m_edit && m_edit_set_string && m_edit_commit && m_edit_remove);
 
-  m_helper_clear_section = env->GetStaticMethodID(m_helper_class, "clearSection", "(Landroid/content/SharedPreferences;Ljava/lang/String;)V");
-  m_helper_add_to_string_list = env->GetStaticMethodID(m_helper_class, "addToStringList", "(Landroid/content/SharedPreferences;Ljava/lang/String;Ljava/lang/String;)Z");
-  m_helper_remove_from_string_list = env->GetStaticMethodID(m_helper_class, "removeFromStringList", "(Landroid/content/SharedPreferences;Ljava/lang/String;Ljava/lang/String;)Z");
-  m_helper_set_string_list = env->GetStaticMethodID(m_helper_class, "setStringList", "(Landroid/content/SharedPreferences;Ljava/lang/String;[Ljava/lang/String;)V");
-  Assert(m_helper_clear_section && m_helper_add_to_string_list && m_helper_remove_from_string_list && m_helper_set_string_list);
+  m_helper_clear_section =
+    env->GetStaticMethodID(m_helper_class, "clearSection", "(Landroid/content/SharedPreferences;Ljava/lang/String;)V");
+  m_helper_add_to_string_list = env->GetStaticMethodID(
+    m_helper_class, "addToStringList", "(Landroid/content/SharedPreferences;Ljava/lang/String;Ljava/lang/String;)Z");
+  m_helper_remove_from_string_list =
+    env->GetStaticMethodID(m_helper_class, "removeFromStringList",
+                           "(Landroid/content/SharedPreferences;Ljava/lang/String;Ljava/lang/String;)Z");
+  m_helper_set_string_list = env->GetStaticMethodID(
+    m_helper_class, "setStringList", "(Landroid/content/SharedPreferences;Ljava/lang/String;[Ljava/lang/String;)V");
+  Assert(m_helper_clear_section && m_helper_add_to_string_list && m_helper_remove_from_string_list &&
+         m_helper_set_string_list);
 }
 
 AndroidSettingsInterface::~AndroidSettingsInterface()
@@ -212,7 +221,7 @@ jobject AndroidSettingsInterface::GetPreferencesEditor(JNIEnv* env)
   return env->CallObjectMethod(m_java_shared_preferences, m_edit);
 }
 
-void AndroidSettingsInterface::CheckForException(JNIEnv *env, const char *task)
+void AndroidSettingsInterface::CheckForException(JNIEnv* env, const char* task)
 {
   if (!env->ExceptionCheck())
     return;
@@ -230,7 +239,8 @@ void AndroidSettingsInterface::SetIntValue(const char* section, const char* key,
   LocalRefHolder<jstring> key_string(env, env->NewStringUTF(GetSettingKey(section, key)));
   LocalRefHolder<jstring> str_value(env, env->NewStringUTF(TinyString::FromFormat("%d", value)));
 
-  LocalRefHolder<jobject> dummy(env, env->CallObjectMethod(editor, m_edit_set_string, key_string.Get(), str_value.Get()));
+  LocalRefHolder<jobject> dummy(env,
+                                env->CallObjectMethod(editor, m_edit_set_string, key_string.Get(), str_value.Get()));
   env->CallBooleanMethod(editor, m_edit_commit);
 
   CheckForException(env, "SetIntValue");
@@ -245,7 +255,8 @@ void AndroidSettingsInterface::SetFloatValue(const char* section, const char* ke
   LocalRefHolder<jstring> key_string(env, env->NewStringUTF(GetSettingKey(section, key)));
   LocalRefHolder<jstring> str_value(env, env->NewStringUTF(TinyString::FromFormat("%f", value)));
 
-  LocalRefHolder<jobject> dummy(env, env->CallObjectMethod(editor, m_edit_set_string, key_string.Get(), str_value.Get()));
+  LocalRefHolder<jobject> dummy(env,
+                                env->CallObjectMethod(editor, m_edit_set_string, key_string.Get(), str_value.Get()));
   env->CallBooleanMethod(editor, m_edit_commit);
 
   CheckForException(env, "SetFloatValue");
@@ -260,7 +271,8 @@ void AndroidSettingsInterface::SetBoolValue(const char* section, const char* key
   LocalRefHolder<jstring> key_string(env, env->NewStringUTF(GetSettingKey(section, key)));
   LocalRefHolder<jstring> str_value(env, env->NewStringUTF(value ? "true" : "false"));
 
-  LocalRefHolder<jobject> dummy(env, env->CallObjectMethod(editor, m_edit_set_string, key_string.Get(), str_value.Get()));
+  LocalRefHolder<jobject> dummy(env,
+                                env->CallObjectMethod(editor, m_edit_set_string, key_string.Get(), str_value.Get()));
   env->CallBooleanMethod(editor, m_edit_commit);
 
   CheckForException(env, "SetBoolValue");
@@ -275,7 +287,8 @@ void AndroidSettingsInterface::SetStringValue(const char* section, const char* k
   LocalRefHolder<jstring> key_string(env, env->NewStringUTF(GetSettingKey(section, key)));
   LocalRefHolder<jstring> str_value(env, env->NewStringUTF(value));
 
-  LocalRefHolder<jobject> dummy(env, env->CallObjectMethod(editor, m_edit_set_string, key_string.Get(), str_value.Get()));
+  LocalRefHolder<jobject> dummy(env,
+                                env->CallObjectMethod(editor, m_edit_set_string, key_string.Get(), str_value.Get()));
   env->CallBooleanMethod(editor, m_edit_commit);
 
   CheckForException(env, "SetStringValue");
@@ -316,10 +329,11 @@ std::vector<std::string> AndroidSettingsInterface::GetStringList(const char* sec
     env->ExceptionClear();
 
     // this might just be a string, not a string set
-    LocalRefHolder<jstring> string_object(
-            env, reinterpret_cast<jstring>(env->CallObjectMethod(m_java_shared_preferences, m_get_string, key_string.Get(), nullptr)));
+    LocalRefHolder<jstring> string_object(env, reinterpret_cast<jstring>(env->CallObjectMethod(
+                                                 m_java_shared_preferences, m_get_string, key_string.Get(), nullptr)));
 
-    if (!env->ExceptionCheck()) {
+    if (!env->ExceptionCheck())
+    {
       std::vector<std::string> ret;
       if (string_object)
         ret.push_back(AndroidHelpers::JStringToString(env, string_object));
@@ -369,7 +383,8 @@ void AndroidSettingsInterface::SetStringList(const char* section, const char* ke
   }
 
   JNIEnv* env = AndroidHelpers::GetJNIEnv();
-  LocalRefHolder<jobjectArray> items_array(env, env->NewObjectArray(static_cast<jsize>(items.size()), AndroidHelpers::GetStringClass(), nullptr));
+  LocalRefHolder<jobjectArray> items_array(
+    env, env->NewObjectArray(static_cast<jsize>(items.size()), AndroidHelpers::GetStringClass(), nullptr));
   for (size_t i = 0; i < items.size(); i++)
   {
     LocalRefHolder<jstring> item_jstr(env, env->NewStringUTF(items[i].c_str()));
@@ -377,7 +392,8 @@ void AndroidSettingsInterface::SetStringList(const char* section, const char* ke
   }
 
   LocalRefHolder<jstring> key_string(env, env->NewStringUTF(GetSettingKey(section, key)));
-  env->CallStaticVoidMethod(m_helper_class, m_helper_set_string_list, m_java_shared_preferences, key_string.Get(), items_array.Get());
+  env->CallStaticVoidMethod(m_helper_class, m_helper_set_string_list, m_java_shared_preferences, key_string.Get(),
+                            items_array.Get());
 
   CheckForException(env, "SetStringList");
 }
@@ -389,7 +405,8 @@ bool AndroidSettingsInterface::RemoveFromStringList(const char* section, const c
   JNIEnv* env = AndroidHelpers::GetJNIEnv();
   LocalRefHolder<jstring> key_string(env, env->NewStringUTF(GetSettingKey(section, key)));
   LocalRefHolder<jstring> item_string(env, env->NewStringUTF(item));
-  const bool result = env->CallStaticBooleanMethod(m_helper_class, m_helper_remove_from_string_list, m_java_shared_preferences, key_string.Get(), item_string.Get());
+  const bool result = env->CallStaticBooleanMethod(m_helper_class, m_helper_remove_from_string_list,
+                                                   m_java_shared_preferences, key_string.Get(), item_string.Get());
   CheckForException(env, "RemoveFromStringList");
   return result;
 }
@@ -401,7 +418,8 @@ bool AndroidSettingsInterface::AddToStringList(const char* section, const char*
   JNIEnv* env = AndroidHelpers::GetJNIEnv();
   LocalRefHolder<jstring> key_string(env, env->NewStringUTF(GetSettingKey(section, key)));
   LocalRefHolder<jstring> item_string(env, env->NewStringUTF(item));
-  const bool result = env->CallStaticBooleanMethod(m_helper_class, m_helper_add_to_string_list, m_java_shared_preferences, key_string.Get(), item_string.Get());
+  const bool result = env->CallStaticBooleanMethod(m_helper_class, m_helper_add_to_string_list,
+                                                   m_java_shared_preferences, key_string.Get(), item_string.Get());
   CheckForException(env, "AddToStringList");
   return result;
 }

android/app/src/cpp/opensles_audio_stream.cpp

@@ -129,8 +129,8 @@ bool OpenSLESAudioStream::OpenDevice()
   for (u32 i = 0; i < NUM_BUFFERS; i++)
     m_buffers[i] = std::make_unique<SampleType[]>(m_buffer_size * m_channels);
 
-  Log_InfoPrintf("OpenSL ES device opened: %uhz, %u channels, %u buffer size, %u buffers",
-      m_output_sample_rate, m_channels, m_buffer_size, NUM_BUFFERS);
+  Log_InfoPrintf("OpenSL ES device opened: %uhz, %u channels, %u buffer size, %u buffers", m_output_sample_rate,
+                 m_channels, m_buffer_size, NUM_BUFFERS);
   return true;
 }
 
@@ -139,7 +139,8 @@ void OpenSLESAudioStream::PauseDevice(bool paused)
   if (m_paused == paused)
     return;
 
-  SLresult res = (*m_play_interface)->SetPlayState(m_play_interface, paused ? SL_PLAYSTATE_PAUSED : SL_PLAYSTATE_PLAYING);
+  SLresult res =
+    (*m_play_interface)->SetPlayState(m_play_interface, paused ? SL_PLAYSTATE_PAUSED : SL_PLAYSTATE_PLAYING);
   if (res != SL_RESULT_SUCCESS)
     Log_ErrorPrintf("SetPlayState failed: %d", res);
 

android/app/src/main/java/com/github/stenzek/duckstation/URLDownloader.java

@@ -0,0 +1,92 @@
+package com.github.stenzek.duckstation;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+/**
+ * Helper class for exposing HTTP downloads to native code without pulling in an external
+ * dependency for doing so.
+ */
+public class URLDownloader {
+    private int statusCode = -1;
+    private byte[] data = null;
+
+    public URLDownloader() {
+    }
+
+    static private HttpURLConnection getConnection(String url) {
+        try {
+            final URL parsedUrl = new URL(url);
+            HttpURLConnection connection = (HttpURLConnection) parsedUrl.openConnection();
+            if (connection == null)
+                throw new RuntimeException(String.format("openConnection(%s) returned null", url));
+
+            return connection;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    public int getStatusCode() {
+        return statusCode;
+    }
+
+    public byte[] getData() {
+        return data;
+    }
+
+    private boolean download(HttpURLConnection connection) {
+        try {
+            statusCode = connection.getResponseCode();
+            if (statusCode != HttpURLConnection.HTTP_OK)
+                return false;
+
+            final InputStream inStream = new BufferedInputStream(connection.getInputStream());
+            final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            final int CHUNK_SIZE = 128 * 1024;
+            final byte[] chunk = new byte[CHUNK_SIZE];
+            int len;
+            while ((len = inStream.read(chunk)) > 0) {
+                outputStream.write(chunk, 0, len);
+            }
+
+            data = outputStream.toByteArray();
+            return true;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    public boolean get(String url) {
+        final HttpURLConnection connection = getConnection(url);
+        if (connection == null)
+            return false;
+
+        return download(connection);
+    }
+
+    public boolean post(String url, byte[] postData) {
+        final HttpURLConnection connection = getConnection(url);
+        if (connection == null)
+            return false;
+
+        try {
+            connection.setDoOutput(true);
+            connection.setChunkedStreamingMode(0);
+
+            OutputStream postStream = new BufferedOutputStream(connection.getOutputStream());
+            postStream.write(postData);
+            return download(connection);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+}

src/frontend-common/CMakeLists.txt

@@ -100,7 +100,7 @@ if(ENABLE_CHEEVOS)
       http_downloader_winhttp.cpp
       http_downloader_winhttp.h
     )
-    else()
+  elseif(NOT ANDROID)
     target_sources(frontend-common PRIVATE
       http_downloader_curl.cpp
       http_downloader_curl.h