// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/browser/plugin_list.h"

#include <string>

#include "base/files/file_path.h"
#include "base/memory/raw_ptr.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"

namespace content {

namespace {

base::FilePath::CharType kFooPath[] = FILE_PATH_LITERAL("/plugins/foo.plugin");
base::FilePath::CharType kBarPath[] = FILE_PATH_LITERAL("/plugins/bar.plugin");
const char kFooMimeType[] = "application/x-foo-mime-type";
const char kFooFileType[] = "foo";

bool Equals(const WebPluginInfo& a, const WebPluginInfo& b) {
  return (a.name == b.name && a.path == b.path && a.version == b.version &&
          a.desc == b.desc);
}

bool Contains(const std::vector<WebPluginInfo>& list,
              const WebPluginInfo& plugin) {
  for (std::vector<WebPluginInfo>::const_iterator it = list.begin();
       it != list.end(); ++it) {
    if (Equals(*it, plugin))
      return true;
  }
  return false;
}

}  // namespace

class PluginListTest : public testing::Test {
 public:
  PluginListTest()
      : foo_plugin_(u"Foo PluginListTest",
                    base::FilePath(kFooPath),
                    u"1.2.3",
                    u"foo"),
        bar_plugin_(u"Bar Plugin", base::FilePath(kBarPath), u"2.3.4", u"bar") {
  }

  void SetUp() override {
    // Cannot use std::unique_ptr due to private ctor.
    plugin_list_ = new PluginList();
    plugin_list_->RegisterInternalPlugin(bar_plugin_, false);
    foo_plugin_.mime_types.emplace_back(kFooMimeType, kFooFileType,
                                        std::string());
    plugin_list_->RegisterInternalPlugin(foo_plugin_, false);
  }

  void TearDown() override {
    // Cannot use std::unique_ptr due to private dtor.
    delete plugin_list_;
  }

 protected:
  // Must be first.
  BrowserTaskEnvironment task_environment_;

  // Owns the PluginList but cannot be a std::unique_ptr due to private
  // ctor/dtor.
  raw_ptr<PluginList> plugin_list_;
  WebPluginInfo foo_plugin_;
  WebPluginInfo bar_plugin_;
};

TEST_F(PluginListTest, GetPlugins) {
  std::vector<WebPluginInfo> plugins;
  plugin_list_->GetPlugins(&plugins);
  EXPECT_EQ(2u, plugins.size());
  EXPECT_TRUE(Contains(plugins, foo_plugin_));
  EXPECT_TRUE(Contains(plugins, bar_plugin_));
}

TEST_F(PluginListTest, BadPluginDescription) {
  WebPluginInfo plugin_3043(
      std::u16string(), base::FilePath(FILE_PATH_LITERAL("/myplugin.3.0.43")),
      std::u16string(), std::u16string());
  // Simulate loading of the plugins.
  plugin_list_->RegisterInternalPlugin(plugin_3043, false);
  // Now we should have them in the state we specified above.
  plugin_list_->RefreshPlugins();
  std::vector<WebPluginInfo> plugins;
  plugin_list_->GetPlugins(&plugins);
  ASSERT_TRUE(Contains(plugins, plugin_3043));
}

TEST_F(PluginListTest, GetPluginInfoArray) {
  const char kTargetUrl[] = "http://example.com/test.foo";
  GURL target_url(kTargetUrl);
  std::vector<WebPluginInfo> plugins;
  std::vector<std::string> actual_mime_types;
  bool is_stale;

  // The PluginList starts out in a stale state.
  is_stale = plugin_list_->GetPluginInfoArray(
      target_url, "application/octet-stream",
      /*allow_wildcard=*/false, &plugins, &actual_mime_types);
  EXPECT_TRUE(is_stale);
  EXPECT_EQ(0u, plugins.size());
  EXPECT_EQ(0u, actual_mime_types.size());

  // Refresh it.
  plugin_list_->GetPlugins(&plugins);
  plugins.clear();

  // The file type of the URL is supported by |foo_plugin_|. However,
  // GetPluginInfoArray should not match |foo_plugin_| because the MIME type is
  // application/octet-stream.
  is_stale = plugin_list_->GetPluginInfoArray(
      target_url, "application/octet-stream",
      /*allow_wildcard=*/false, &plugins, &actual_mime_types);
  EXPECT_FALSE(is_stale);
  EXPECT_EQ(0u, plugins.size());
  EXPECT_EQ(0u, actual_mime_types.size());

  // |foo_plugin_| matches due to the MIME type.
  plugins.clear();
  actual_mime_types.clear();
  is_stale = plugin_list_->GetPluginInfoArray(target_url, kFooMimeType,
                                              /*allow_wildcard=*/false,
                                              &plugins, &actual_mime_types);
  EXPECT_FALSE(is_stale);
  EXPECT_EQ(1u, plugins.size());
  EXPECT_TRUE(Contains(plugins, foo_plugin_));
  ASSERT_EQ(1u, actual_mime_types.size());
  EXPECT_EQ(kFooMimeType, actual_mime_types.front());

  // |foo_plugin_| matches due to the file type and empty MIME type.
  plugins.clear();
  actual_mime_types.clear();
  is_stale = plugin_list_->GetPluginInfoArray(target_url, "",
                                              /*allow_wildcard=*/false,
                                              &plugins, &actual_mime_types);
  EXPECT_FALSE(is_stale);
  EXPECT_EQ(1u, plugins.size());
  EXPECT_TRUE(Contains(plugins, foo_plugin_));
  ASSERT_EQ(1u, actual_mime_types.size());
  EXPECT_EQ(kFooMimeType, actual_mime_types.front());
}

}  // namespace content