chrome/renderer/safe_browsing/malware_dom_details_browsertest.cc


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// Copyright (c) 2011 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 "base/strings/stringprintf.h"
#include "chrome/common/safe_browsing/safebrowsing_messages.h"
#include "chrome/renderer/safe_browsing/malware_dom_details.h"
#include "chrome/test/base/chrome_render_view_test.h"
#include "net/base/escape.h"

typedef ChromeRenderViewTest MalwareDOMDetailsTest;


TEST_F(MalwareDOMDetailsTest, Everything) {
  scoped_ptr<safe_browsing::MalwareDOMDetails> details(
      safe_browsing::MalwareDOMDetails::Create(view_));
  // Lower kMaxNodes for the test. Loading 500 subframes in a
  // debug build takes a while.
  details->kMaxNodes = 50;

  const char* urlprefix = "data:text/html;charset=utf-8,";

  { // An page with an internal script
    std::string html = "<html><head><script></script></head></html>";
    LoadHTML(html.c_str());
    std::vector<SafeBrowsingHostMsg_MalwareDOMDetails_Node> params;
    details->ExtractResources(&params);
    ASSERT_EQ(1u, params.size());
    EXPECT_EQ(GURL(urlprefix + html), params[0].url);
  }

  { // A page with 2 external scripts.
    // Note: This part of the test causes 2 leaks: LEAK: 5 WebCoreNode
    // LEAK: 2 CachedResource.
    GURL script1_url("data:text/javascript;charset=utf-8,var a=1;");
    GURL script2_url("data:text/javascript;charset=utf-8,var b=2;");
    std::string html = "<html><head><script src=\"" + script1_url.spec() +
        "\"></script><script src=\"" + script2_url.spec() +
        "\"></script></head></html>";
    GURL url(urlprefix + html);

    LoadHTML(html.c_str());
    std::vector<SafeBrowsingHostMsg_MalwareDOMDetails_Node> params;
    details->ExtractResources(&params);
    ASSERT_EQ(3u, params.size());
    EXPECT_EQ(script1_url, params[0].url);
    EXPECT_EQ("SCRIPT", params[0].tag_name);
    EXPECT_EQ(script2_url, params[1].url);
    EXPECT_EQ("SCRIPT", params[0].tag_name);
    EXPECT_EQ(url, params[2].url);
  }

  { // A page with an iframe which in turn contains an iframe.
    //  html
    //   \ iframe1
    //    \ iframe2
    std::string iframe2_html = "<html><body>iframe2</body></html>";
    GURL iframe2_url(urlprefix + iframe2_html);
    std::string iframe1_html = "<iframe src=\"" + net::EscapeForHTML(
        iframe2_url.spec()) + "\"></iframe>";
    GURL iframe1_url(urlprefix + iframe1_html);
    std::string html = "<html><head><iframe src=\"" + net::EscapeForHTML(
        iframe1_url.spec()) + "\"></iframe></head></html>";
    GURL url(urlprefix + html);

    LoadHTML(html.c_str());
    std::vector<SafeBrowsingHostMsg_MalwareDOMDetails_Node> params;
    details->ExtractResources(&params);
    ASSERT_EQ(5u, params.size());

    EXPECT_EQ(iframe1_url, params[0].url);
    EXPECT_EQ(url, params[0].parent);
    EXPECT_EQ(0u, params[0].children.size());
    EXPECT_EQ("IFRAME", params[0].tag_name);

    EXPECT_EQ(url, params[1].url);
    EXPECT_EQ(GURL(), params[1].parent);
    EXPECT_EQ(1u, params[1].children.size());
    EXPECT_EQ(iframe1_url, params[1].children[0]);

    EXPECT_EQ(iframe2_url, params[2].url);
    EXPECT_EQ(iframe1_url, params[2].parent);
    EXPECT_EQ(0u, params[2].children.size());
    EXPECT_EQ("IFRAME", params[2].tag_name);

    // The frames are added twice, once with the correct parent and tagname
    // and once with the correct children. The caller in the browser
    // is responsible for merging.
    EXPECT_EQ(iframe1_url, params[3].url);
    EXPECT_EQ(GURL(), params[3].parent);
    EXPECT_EQ(1u, params[3].children.size());
    EXPECT_EQ(iframe2_url, params[3].children[0]);

    EXPECT_EQ(iframe2_url, params[4].url);
    EXPECT_EQ(GURL(), params[4].parent);
    EXPECT_EQ(0u, params[4].children.size());
  }

  { // >50 subframes, to verify kMaxNodes.
    std::string html;
    for (int i = 0; i < 55; ++i) {
      // The iframe contents is just a number.
      GURL iframe_url(base::StringPrintf("%s%d", urlprefix, i));
      html += "<iframe src=\"" + net::EscapeForHTML(iframe_url.spec()) +
          "\"></iframe>";
    }
    GURL url(urlprefix + html);

    LoadHTML(html.c_str());
    std::vector<SafeBrowsingHostMsg_MalwareDOMDetails_Node> params;
    details->ExtractResources(&params);
    ASSERT_EQ(51u, params.size());
  }

  { // A page with >50 scripts, to verify kMaxNodes.
    std::string html;
    for (int i = 0; i < 55; ++i) {
      // The iframe contents is just a number.
      GURL script_url(base::StringPrintf("%s%d", urlprefix, i));
      html += "<script src=\"" + net::EscapeForHTML(script_url.spec()) +
          "\"></script>";
    }
    GURL url(urlprefix + html);

    LoadHTML(html.c_str());
    std::vector<SafeBrowsingHostMsg_MalwareDOMDetails_Node> params;
    details->ExtractResources(&params);
    ASSERT_EQ(51u, params.size());
  }

}