Amazon Cloud Drive support.

Squashed commit of the following:

commit 451a327fabb5f9aba077d93a33d75d8a6a288f5f
Author: John Maguire <john.maguire@gmail.com>
Date:   Fri Mar 27 14:55:36 2015 +0100

    Revert debug console changes.

commit 52f643c3dc524a837f56268b6da4881187204165
Author: John Maguire <john.maguire@gmail.com>
Date:   Fri Mar 27 14:49:28 2015 +0100

    Revert extra logging

commit 23645f9fea
Author: John Maguire <john.maguire@gmail.com>
Date:   Fri Mar 27 14:47:55 2015 +0100

    How did you get there

commit 8153388f19
Author: John Maguire <john.maguire@gmail.com>
Date:   Fri Mar 27 14:45:12 2015 +0100

    Update copyright headers.

commit fa9e279259
Author: John Maguire <john.maguire@gmail.com>
Date:   Fri Mar 27 14:43:27 2015 +0100

    Remove logging

commit 47a405543c
Author: John Maguire <john.maguire@gmail.com>
Date:   Fri Mar 27 14:42:05 2015 +0100

    Show login state correctly for Amazon.

commit 748d88d993
Author: John Maguire <john.maguire@gmail.com>
Date:   Fri Mar 27 14:28:55 2015 +0100

    Ensure Amazon is connected before serving URLs.

commit 25ec9c65f4
Author: John Maguire <john.maguire@gmail.com>
Date:   Fri Mar 27 14:22:28 2015 +0100

    Refresh Amazon authorisation & follow changes.

commit 27c1a37173
Author: John Maguire <john.maguire@gmail.com>
Date:   Thu Mar 26 18:27:27 2015 +0100

    Revert unneeded OAuthenticator change.

commit 3594af5be1
Author: John Maguire <john.maguire@gmail.com>
Date:   Thu Mar 26 16:52:19 2015 +0100

    Initial support for Amazon Cloud Drive.

CMakeLists.txt

@@ -215,6 +215,11 @@ optional_component(SEAFILE ON "Seafile support"
   DEPENDS "Taglib 1.8" "TAGLIB_VERSION VERSION_GREATER 1.7.999"
 )
 
+optional_component(AMAZON_CLOUD_DRIVE ON "Amazon Cloud Drive support"
+  DEPENDS "Google sparsehash" SPARSEHASH_INCLUDE_DIRS
+  DEPENDS "Taglib 1.8" "TAGLIB_VERSION VERSION_GREATER 1.7.999"
+)
+
 optional_component(AUDIOCD ON "Devices: Audio CD support"
   DEPENDS "libcdio" CDIO_FOUND
 )

data/data.qrc

@@ -310,6 +310,7 @@
         <file>playstore/uk_generic_rgb_wo_45.png</file>
         <file>playstore/vi_generic_rgb_wo_45.png</file>
         <file>providers/amazon.png</file>
+        <file>providers/amazonclouddrive.png</file>
         <file>providers/aol.png</file>
         <file>providers/bbc.png</file>
         <file>providers/box.png</file>
@@ -385,6 +386,7 @@
         <file>schema/schema-45.sql</file>
         <file>schema/schema-46.sql</file>
         <file>schema/schema-47.sql</file>
+        <file>schema/schema-48.sql</file>
         <file>schema/schema-4.sql</file>
         <file>schema/schema-5.sql</file>
         <file>schema/schema-6.sql</file>

data/schema/schema-48.sql

@@ -0,0 +1,50 @@
+CREATE TABLE amazon_cloud_drive_songs(
+  title TEXT,
+  album TEXT,
+  artist TEXT,
+  albumartist TEXT,
+  composer TEXT,
+  track INTEGER,
+  disc INTEGER,
+  bpm REAL,
+  year INTEGER,
+  genre TEXT,
+  comment TEXT,
+  compilation INTEGER,
+
+  length INTEGER,
+  bitrate INTEGER,
+  samplerate INTEGER,
+
+  directory INTEGER NOT NULL,
+  filename TEXT NOT NULL,
+  mtime INTEGER NOT NULL,
+  ctime INTEGER NOT NULL,
+  filesize INTEGER NOT NULL,
+  sampler INTEGER NOT NULL DEFAULT 0,
+  art_automatic TEXT,
+  art_manual TEXT,
+  filetype INTEGER NOT NULL DEFAULT 0,
+  playcount INTEGER NOT NULL DEFAULT 0,
+  lastplayed INTEGER,
+  rating INTEGER,
+  forced_compilation_on INTEGER NOT NULL DEFAULT 0,
+  forced_compilation_off INTEGER NOT NULL DEFAULT 0,
+  effective_compilation NOT NULL DEFAULT 0,
+  skipcount INTEGER NOT NULL DEFAULT 0,
+  score INTEGER NOT NULL DEFAULT 0,
+  beginning INTEGER NOT NULL DEFAULT 0,
+  cue_path TEXT,
+  unavailable INTEGER DEFAULT 0,
+  effective_albumartist TEXT,
+  etag TEXT,
+  performer TEXT,
+  grouping TEXT
+);
+
+CREATE VIRTUAL TABLE amazon_cloud_drive_songs_fts USING fts3 (
+  ftstitle, ftsalbum, ftsartist, ftsalbumartist, ftscomposer, ftsperformer, ftsgrouping, ftsgenre, ftscomment,
+  tokenize=unicode
+);
+
+UPDATE schema_version SET version=48;

src/CMakeLists.txt

@@ -1178,6 +1178,20 @@ optional_source(HAVE_SEAFILE
     internet/seafile/seafilesettingspage.ui
 )
 
+# Amazon Cloud Drive support
+optional_source(HAVE_AMAZON_CLOUD_DRIVE
+  SOURCES
+    internet/amazon/amazonclouddrive.cpp
+    internet/amazon/amazonsettingspage.cpp
+    internet/amazon/amazonurlhandler.cpp
+  HEADERS
+    internet/amazon/amazonclouddrive.h
+    internet/amazon/amazonsettingspage.h
+    internet/amazon/amazonurlhandler.h
+  UI
+    internet/amazon/amazonsettingspage.ui
+)
+
 
 # Pulse audio integration
 optional_source(HAVE_LIBPULSE

src/config.h.in

@@ -21,6 +21,7 @@
 #define CMAKE_EXECUTABLE_SUFFIX "${CMAKE_EXECUTABLE_SUFFIX}"
 
 #cmakedefine ENABLE_VISUALISATIONS
+#cmakedefine HAVE_AMAZON_CLOUD_DRIVE
 #cmakedefine HAVE_AUDIOCD
 #cmakedefine HAVE_BOX
 #cmakedefine HAVE_BREAKPAD

src/core/database.cpp

@@ -47,7 +47,7 @@
 #include <QVariant>
 
 const char* Database::kDatabaseFilename = "clementine.db";
-const int Database::kSchemaVersion = 47;
+const int Database::kSchemaVersion = 48;
 const char* Database::kMagicAllSongsTables = "%allsongstables";
 
 int Database::sNextConnectionId = 1;

src/engines/gstenginepipeline.cpp

@@ -903,6 +903,15 @@ void GstEnginePipeline::SourceSetupCallback(GstURIDecodeBin* bin,
     g_object_set(element, "extra-headers", headers, nullptr);
     gst_structure_free(headers);
   }
+  if (g_object_class_find_property(G_OBJECT_GET_CLASS(element),
+                                   "extra-headers") &&
+      instance->url().host().contains("amazonaws.com")) {
+    GstStructure* headers = gst_structure_new(
+        "extra-headers", "Authorization", G_TYPE_STRING,
+        instance->url().fragment().toAscii().data(), nullptr);
+    g_object_set(element, "extra-headers", headers, nullptr);
+    gst_structure_free(headers);
+  }
 
   if (g_object_class_find_property(G_OBJECT_GET_CLASS(element), "user-agent")) {
     QString user_agent =

src/internet/amazon/amazonclouddrive.cpp

@@ -0,0 +1,246 @@
+/* This file is part of Clementine.
+   Copyright 2015, John Maguire <john.maguire@gmail.com>
+
+   Clementine is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Clementine is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "internet/amazon/amazonclouddrive.h"
+
+#include <QIcon>
+
+#include <qjson/parser.h>
+#include <qjson/serializer.h>
+
+#include "core/application.h"
+#include "core/closure.h"
+#include "core/logging.h"
+#include "core/network.h"
+#include "core/player.h"
+#include "core/waitforsignal.h"
+#include "internet/core/oauthenticator.h"
+#include "internet/amazon/amazonurlhandler.h"
+#include "library/librarybackend.h"
+#include "ui/settingsdialog.h"
+
+const char* AmazonCloudDrive::kServiceName = "Cloud Drive";
+const char* AmazonCloudDrive::kSettingsGroup = "AmazonCloudDrive";
+
+namespace {
+static const char* kServiceId = "amazon_cloud_drive";
+static const char* kClientId =
+    "amzn1.application-oa2-client.2b1157a7dadc45c3888567882b3a9f05";
+static const char* kClientSecret =
+    "acfbf95340cc4c381dd43fb75b5e111882d7fd1b02a02f3013ab124baf8d1655";
+static const char* kOAuthScope = "clouddrive:read";
+static const char* kOAuthEndpoint = "https://www.amazon.com/ap/oa";
+static const char* kOAuthTokenEndpoint = "https://api.amazon.com/auth/o2/token";
+
+static const char* kEndpointEndpoint =
+    "https://drive.amazonaws.com/drive/v1/account/endpoint";
+static const char* kChangesEndpoint = "%1/changes";
+static const char* kDownloadEndpoint = "%1/nodes/%2/content";
+}  // namespace
+
+AmazonCloudDrive::AmazonCloudDrive(Application* app, InternetModel* parent)
+    : CloudFileService(app, parent, kServiceName, kServiceId,
+                       QIcon(":/providers/amazonclouddrive.png"),
+                       SettingsDialog::Page_AmazonCloudDrive),
+      network_(new NetworkAccessManager) {
+  app->player()->RegisterUrlHandler(new AmazonUrlHandler(this, this));
+}
+
+bool AmazonCloudDrive::has_credentials() const {
+  QSettings s;
+  s.beginGroup(kSettingsGroup);
+  return !s.value("refresh_token").toString().isEmpty();
+}
+
+QUrl AmazonCloudDrive::GetStreamingUrlFromSongId(const QUrl& url) {
+  EnsureConnected();  // Access token must be up to date.
+  QUrl download_url(
+      QString(kDownloadEndpoint).arg(content_url_).arg(url.path()));
+  download_url.setFragment(QString("Bearer %1").arg(access_token_));
+  return download_url;
+}
+
+void AmazonCloudDrive::Connect() {
+  OAuthenticator* oauth = new OAuthenticator(
+      kClientId, kClientSecret,
+      // Amazon forbids arbitrary query parameters so REMOTE_WITH_STATE is
+      // required.
+      OAuthenticator::RedirectStyle::REMOTE_WITH_STATE, this);
+
+  QSettings s;
+  s.beginGroup(kSettingsGroup);
+  QString refresh_token = s.value("refresh_token").toString();
+  if (refresh_token.isEmpty()) {
+    oauth->StartAuthorisation(kOAuthEndpoint, kOAuthTokenEndpoint, kOAuthScope);
+  } else {
+    oauth->RefreshAuthorisation(kOAuthTokenEndpoint, refresh_token);
+  }
+
+  NewClosure(oauth, SIGNAL(Finished()), this,
+            SLOT(ConnectFinished(OAuthenticator*)), oauth);
+}
+
+void AmazonCloudDrive::EnsureConnected() {
+  if (access_token_.isEmpty() ||
+      QDateTime::currentDateTime().secsTo(expiry_time_) < 60) {
+    Connect();
+    WaitForSignal(this, SIGNAL(Connected()));
+  }
+}
+
+void AmazonCloudDrive::ForgetCredentials() {
+  QSettings s;
+  s.beginGroup(kSettingsGroup);
+  s.remove("");
+  access_token_ = QString();
+  expiry_time_ = QDateTime();
+}
+
+void AmazonCloudDrive::ConnectFinished(OAuthenticator* oauth) {
+  oauth->deleteLater();
+
+  QSettings s;
+  s.beginGroup(kSettingsGroup);
+  s.setValue("refresh_token", oauth->refresh_token());
+
+  access_token_ = oauth->access_token();
+  expiry_time_ = oauth->expiry_time();
+
+  FetchEndpoint();
+}
+
+void AmazonCloudDrive::FetchEndpoint() {
+  QUrl url(kEndpointEndpoint);
+  QNetworkRequest request(url);
+  AddAuthorizationHeader(&request);
+  QNetworkReply* reply = network_->get(request);
+  NewClosure(reply, SIGNAL(finished()), this,
+             SLOT(FetchEndpointFinished(QNetworkReply*)), reply);
+}
+
+void AmazonCloudDrive::FetchEndpointFinished(QNetworkReply* reply) {
+  reply->deleteLater();
+  QJson::Parser parser;
+  QVariantMap response = parser.parse(reply).toMap();
+  content_url_ = response["contentUrl"].toString();
+  metadata_url_ = response["metadataUrl"].toString();
+  QSettings s;
+  s.beginGroup(kSettingsGroup);
+  QString checkpoint = s.value("checkpoint", "").toString();
+  RequestChanges(checkpoint);
+
+  // We wait until we know the endpoint URLs before emitting Connected();
+  emit Connected();
+}
+
+void AmazonCloudDrive::RequestChanges(const QString& checkpoint) {
+  EnsureConnected();
+  QUrl url(QString(kChangesEndpoint).arg(metadata_url_));
+
+  QVariantMap data;
+  data["includePurged"] = "true";
+  if (!checkpoint.isEmpty()) {
+    data["checkpoint"] = checkpoint;
+  }
+  QJson::Serializer serializer;
+  QByteArray json = serializer.serialize(data);
+
+  QNetworkRequest request(url);
+  AddAuthorizationHeader(&request);
+  QNetworkReply* reply = network_->post(request, json);
+  NewClosure(reply, SIGNAL(finished()), this,
+             SLOT(RequestChangesFinished(QNetworkReply*)), reply);
+}
+
+void AmazonCloudDrive::RequestChangesFinished(QNetworkReply* reply) {
+  reply->deleteLater();
+
+  QByteArray data = reply->readAll();
+  QBuffer buffer(&data);
+  buffer.open(QIODevice::ReadOnly);
+
+  QJson::Parser parser;
+  QVariantMap response = parser.parse(&buffer).toMap();
+
+  QString checkpoint = response["checkpoint"].toString();
+  QSettings settings;
+  settings.beginGroup(kSettingsGroup);
+  settings.setValue("checkpoint", checkpoint);
+
+  QVariantList nodes = response["nodes"].toList();
+  for (const QVariant& n : nodes) {
+    QVariantMap node = n.toMap();
+    if (node["kind"].toString() == "FOLDER") {
+      // Skip directories.
+      continue;
+    }
+    QUrl url;
+    url.setScheme("amazonclouddrive");
+    url.setPath(node["id"].toString());
+
+    QString status = node["status"].toString();
+    if (status == "PURGED") {
+      // Remove no longer available files.
+      Song song = library_backend_->GetSongByUrl(url);
+      if (song.is_valid()) {
+        library_backend_->DeleteSongs(SongList() << song);
+      }
+      continue;
+    }
+    if (status != "AVAILABLE") {
+      // Ignore any other statuses.
+      continue;
+    }
+
+    QVariantMap content_properties = node["contentProperties"].toMap();
+    QString mime_type = content_properties["contentType"].toString();
+
+    if (ShouldIndexFile(url, mime_type)) {
+      QString node_id = node["id"].toString();
+      QUrl content_url(
+          QString(kDownloadEndpoint).arg(content_url_).arg(node_id));
+      QString md5 = content_properties["md5"].toString();
+
+      Song song;
+      song.set_url(url);
+      song.set_etag(md5);
+      song.set_mtime(node["modifiedDate"].toDateTime().toTime_t());
+      song.set_ctime(node["createdDate"].toDateTime().toTime_t());
+      song.set_title(node["name"].toString());
+      song.set_filesize(content_properties["size"].toInt());
+
+      MaybeAddFileToDatabase(song, mime_type, content_url, QString("Bearer %1").arg(access_token_));
+    }
+  }
+
+  // The API potentially returns a second JSON dictionary appended with a
+  // newline at the end of the response with {"end": true} indicating that our
+  // client is up to date with the latest changes.
+  const int last_newline_index = data.lastIndexOf('\n');
+  QByteArray last_line = data.mid(last_newline_index);
+  QVariantMap end_json = parser.parse(last_line).toMap();
+  if (end_json.contains("end") && end_json["end"].toBool()) {
+    return;
+  } else {
+    RequestChanges(checkpoint);
+  }
+}
+
+void AmazonCloudDrive::AddAuthorizationHeader(QNetworkRequest* request) {
+  request->setRawHeader("Authorization",
+                        QString("Bearer %1").arg(access_token_).toUtf8());
+}

src/internet/amazon/amazonclouddrive.h

@@ -0,0 +1,71 @@
+/* This file is part of Clementine.
+   Copyright 2015, John Maguire <john.maguire@gmail.com>
+
+   Clementine is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Clementine is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef INTERNET_AMAZON_AMAZON_CLOUD_DRIVE_H_
+#define INTERNET_AMAZON_AMAZON_CLOUD_DRIVE_H_
+
+#include "internet/core/cloudfileservice.h"
+
+#include <QDateTime>
+#include <QString>
+#include <QUrl>
+
+class NetworkAccessManager;
+class OAuthenticator;
+class QNetworkReply;
+class QNetworkRequest;
+
+class AmazonCloudDrive : public CloudFileService {
+  Q_OBJECT
+ public:
+  AmazonCloudDrive(Application* app, InternetModel* parent);
+
+  static const char* kServiceName;
+  static const char* kSettingsGroup;
+
+  virtual bool has_credentials() const;
+
+  QUrl GetStreamingUrlFromSongId(const QUrl& url);
+
+  void ForgetCredentials();
+
+ signals:
+  void Connected();
+
+ public slots:
+  void Connect();
+
+ private:
+  void FetchEndpoint();
+  void RequestChanges(const QString& checkpoint);
+  void AddAuthorizationHeader(QNetworkRequest* request);
+  void EnsureConnected();
+
+ private slots:
+  void ConnectFinished(OAuthenticator*);
+  void FetchEndpointFinished(QNetworkReply*);
+  void RequestChangesFinished(QNetworkReply*);
+
+ private:
+  NetworkAccessManager* network_;
+  QString access_token_;
+  QDateTime expiry_time_;
+  QString content_url_;
+  QString metadata_url_;
+};
+
+#endif  // INTERNET_AMAZON_AMAZON_CLOUD_DRIVE_H_

src/internet/amazon/amazonsettingspage.cpp

@@ -0,0 +1,80 @@
+/* This file is part of Clementine.
+   Copyright 2015, John Maguire <john.maguire@gmail.com>
+
+   Clementine is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Clementine is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "amazonsettingspage.h"
+#include "ui_amazonsettingspage.h"
+
+#include "core/application.h"
+#include "internet/amazon/amazonclouddrive.h"
+#include "internet/core/internetmodel.h"
+#include "ui/settingsdialog.h"
+
+AmazonSettingsPage::AmazonSettingsPage(SettingsDialog* parent)
+    : SettingsPage(parent),
+      ui_(new Ui::AmazonSettingsPage),
+      service_(dialog()->app()->internet_model()->Service<AmazonCloudDrive>()) {
+  ui_->setupUi(this);
+  ui_->login_state->AddCredentialGroup(ui_->login_container);
+
+  connect(ui_->login_button, SIGNAL(clicked()), SLOT(LoginClicked()));
+  connect(ui_->login_state, SIGNAL(LogoutClicked()), SLOT(LogoutClicked()));
+  connect(service_, SIGNAL(Connected()), SLOT(Connected()));
+
+  dialog()->installEventFilter(this);
+}
+
+AmazonSettingsPage::~AmazonSettingsPage() { delete ui_; }
+
+void AmazonSettingsPage::Load() {
+  QSettings s;
+  s.beginGroup(AmazonCloudDrive::kSettingsGroup);
+
+  const QString token = s.value("refresh_token").toString();
+
+  if (!token.isEmpty()) {
+    ui_->login_state->SetLoggedIn(LoginStateWidget::LoggedIn);
+  }
+}
+
+void AmazonSettingsPage::Save() {
+  QSettings s;
+  s.beginGroup(AmazonCloudDrive::kSettingsGroup);
+}
+
+void AmazonSettingsPage::LoginClicked() {
+  service_->Connect();
+  ui_->login_button->setEnabled(false);
+  ui_->login_state->SetLoggedIn(LoginStateWidget::LoginInProgress);
+}
+
+bool AmazonSettingsPage::eventFilter(QObject* object, QEvent* event) {
+  if (object == dialog() && event->type() == QEvent::Enter) {
+    ui_->login_button->setEnabled(true);
+    return false;
+  }
+
+  return SettingsPage::eventFilter(object, event);
+}
+
+void AmazonSettingsPage::LogoutClicked() {
+  service_->ForgetCredentials();
+  ui_->login_state->SetLoggedIn(LoginStateWidget::LoggedOut);
+}
+
+void AmazonSettingsPage::Connected() {
+  ui_->login_state->SetLoggedIn(LoginStateWidget::LoggedIn);
+}

src/internet/amazon/amazonsettingspage.h

@@ -0,0 +1,53 @@
+/* This file is part of Clementine.
+   Copyright 2015, John Maguire <john.maguire@gmail.com>
+
+   Clementine is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Clementine is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef INTERNET_AMAZON_AMAZONSETTINGSPAGE_H_
+#define INTERNET_AMAZON_AMAZONSETTINGSPAGE_H_
+
+#include "ui/settingspage.h"
+
+#include <QModelIndex>
+#include <QWidget>
+
+class AmazonCloudDrive;
+class Ui_AmazonSettingsPage;
+
+class AmazonSettingsPage : public SettingsPage {
+  Q_OBJECT
+
+ public:
+  explicit AmazonSettingsPage(SettingsDialog* parent = nullptr);
+  ~AmazonSettingsPage();
+
+  void Load();
+  void Save();
+
+  // QObject
+  bool eventFilter(QObject* object, QEvent* event);
+
+ private slots:
+  void LoginClicked();
+  void LogoutClicked();
+  void Connected();
+
+ private:
+  Ui_AmazonSettingsPage* ui_;
+
+  AmazonCloudDrive* service_;
+};
+
+#endif  // INTERNET_AMAZON_AMAZONSETTINGSPAGE_H_

src/internet/amazon/amazonsettingspage.ui

@@ -0,0 +1,110 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>AmazonSettingsPage</class>
+ <widget class="QWidget" name="AmazonSettingsPage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>569</width>
+    <height>491</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Amazon</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../../data/data.qrc">
+    <normaloff>:/providers/amazonclouddrive.png</normaloff>:/providers/amazonclouddrive.png</iconset>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2">
+   <item>
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>Clementine can play music that you have uploaded to Amazon Cloud Drive</string>
+     </property>
+     <property name="wordWrap">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="LoginStateWidget" name="login_state" native="true"/>
+   </item>
+   <item>
+    <widget class="QWidget" name="login_container" native="true">
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <property name="leftMargin">
+       <number>28</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <item>
+         <widget class="QPushButton" name="login_button">
+          <property name="text">
+           <string>Login</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <spacer name="horizontalSpacer">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>40</width>
+            <height>20</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <widget class="QLabel" name="label_2">
+        <property name="text">
+         <string>Clicking the Login button will open a web browser.  You should return to Clementine after you have logged in.</string>
+        </property>
+        <property name="wordWrap">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>357</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>LoginStateWidget</class>
+   <extends>QWidget</extends>
+   <header>widgets/loginstatewidget.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../../data/data.qrc"/>
+ </resources>
+ <connections/>
+</ui>

src/internet/amazon/amazonurlhandler.cpp

@@ -0,0 +1,28 @@
+/* This file is part of Clementine.
+   Copyright 2015, John Maguire <john.maguire@gmail.com>
+
+   Clementine is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Clementine is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "internet/amazon/amazonurlhandler.h"
+
+#include "internet/amazon/amazonclouddrive.h"
+
+AmazonUrlHandler::AmazonUrlHandler(AmazonCloudDrive* service, QObject* parent)
+    : UrlHandler(parent), service_(service) {}
+
+UrlHandler::LoadResult AmazonUrlHandler::StartLoading(const QUrl& url) {
+  return LoadResult(url, LoadResult::TrackAvailable,
+                    service_->GetStreamingUrlFromSongId(url));
+}

src/internet/amazon/amazonurlhandler.h

@@ -0,0 +1,39 @@
+/* This file is part of Clementine.
+   Copyright 2015, John Maguire <john.maguire@gmail.com>
+
+   Clementine is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Clementine is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef INTERNET_AMAZON_AMAZONURLHANDLER_H_
+#define INTERNET_AMAZON_AMAZONURLHANDLER_H_
+
+#include "core/urlhandler.h"
+
+class AmazonCloudDrive;
+
+class AmazonUrlHandler : public UrlHandler {
+  Q_OBJECT
+ public:
+  explicit AmazonUrlHandler(
+      AmazonCloudDrive* service, QObject* parent = nullptr);
+
+  QString scheme() const { return "amazonclouddrive"; }
+  QIcon icon() const { return QIcon(":providers/amazonclouddrive.png"); }
+  LoadResult StartLoading(const QUrl& url);
+
+ private:
+  AmazonCloudDrive* service_;
+};
+
+#endif  // INTERNET_AMAZON_AMAZONURLHANDLER_H_

src/internet/core/internetmodel.cpp

@@ -64,6 +64,9 @@
 #ifdef HAVE_SEAFILE
 #include "internet/seafile/seafileservice.h"
 #endif
+#ifdef HAVE_AMAZON_CLOUD_DRIVE
+#include "internet/amazon/amazonclouddrive.h"
+#endif
 
 using smart_playlists::Generator;
 using smart_playlists::GeneratorMimeData;
@@ -117,6 +120,9 @@ InternetModel::InternetModel(Application* app, QObject* parent)
 #ifdef HAVE_VK
   AddService(new VkService(app, this));
 #endif
+#ifdef HAVE_AMAZON_CLOUD_DRIVE
+  AddService(new AmazonCloudDrive(app, this));
+#endif
 
   invisibleRootItem()->sortChildren(0, Qt::AscendingOrder);
   UpdateServices();

src/ui/settingsdialog.cpp

@@ -84,6 +84,10 @@
 #include "internet/seafile/seafilesettingspage.h"
 #endif
 
+#ifdef HAVE_AMAZON_CLOUD_DRIVE
+#include "internet/amazon/amazonsettingspage.h"
+#endif
+
 #include <QAbstractButton>
 #include <QDesktopWidget>
 #include <QPainter>
@@ -193,6 +197,10 @@ SettingsDialog::SettingsDialog(Application* app, BackgroundStreams* streams,
   AddPage(Page_Seafile, new SeafileSettingsPage(this), providers);
 #endif
 
+#ifdef HAVE_AMAZON_CLOUD_DRIVE
+  AddPage(Page_AmazonCloudDrive, new AmazonSettingsPage(this), providers);
+#endif
+
   AddPage(Page_Magnatune, new MagnatuneSettingsPage(this), providers);
   AddPage(Page_DigitallyImported, new DigitallyImportedSettingsPage(this),
           providers);

src/ui/settingsdialog.h

@@ -86,7 +86,8 @@ class SettingsDialog : public QDialog {
     Page_Box,
     Page_Vk,
     Page_Seafile,
-    Page_InternetShow
+    Page_InternetShow,
+    Page_AmazonCloudDrive,
   };
 
   enum Role { Role_IsSeparator = Qt::UserRole };