| // 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 "chrome/browser/plugins/pdf_iframe_navigation_throttle.h" |
| |
| #include "base/feature_list.h" |
| #include "chrome/common/chrome_content_client.h" |
| #include "chrome/common/chrome_features.h" |
| #include "chrome/common/pdf_uma.h" |
| #include "content/public/browser/browser_context.h" |
| #include "content/public/browser/navigation_handle.h" |
| #include "content/public/browser/render_frame_host.h" |
| #include "content/public/browser/render_process_host.h" |
| #include "content/public/browser/web_contents.h" |
| #include "net/base/escape.h" |
| #include "net/http/http_response_headers.h" |
| #include "ppapi/features/features.h" |
| |
| #if BUILDFLAG(ENABLE_PLUGINS) |
| #include "chrome/browser/plugins/chrome_plugin_service_filter.h" |
| #include "content/public/browser/plugin_service.h" |
| #endif |
| |
| PDFIFrameNavigationThrottle::PDFIFrameNavigationThrottle( |
| content::NavigationHandle* navigation_handle) |
| : content::NavigationThrottle(navigation_handle) {} |
| |
| PDFIFrameNavigationThrottle::~PDFIFrameNavigationThrottle() {} |
| |
| const char* PDFIFrameNavigationThrottle::GetNameForLogging() { |
| return "PDFIFrameNavigationThrottle"; |
| } |
| |
| // static |
| std::unique_ptr<content::NavigationThrottle> |
| PDFIFrameNavigationThrottle::MaybeCreateThrottleFor( |
| content::NavigationHandle* handle) { |
| if (handle->IsInMainFrame()) |
| return nullptr; |
| |
| #if BUILDFLAG(ENABLE_PLUGINS) |
| content::WebPluginInfo pdf_plugin_info; |
| base::FilePath pdf_plugin_path = |
| base::FilePath::FromUTF8Unsafe(ChromeContentClient::kPDFPluginPath); |
| content::PluginService::GetInstance()->GetPluginInfoByPath(pdf_plugin_path, |
| &pdf_plugin_info); |
| |
| ChromePluginServiceFilter* filter = ChromePluginServiceFilter::GetInstance(); |
| int process_id = |
| handle->GetWebContents()->GetMainFrame()->GetProcess()->GetID(); |
| int routing_id = handle->GetWebContents()->GetMainFrame()->GetRoutingID(); |
| content::ResourceContext* resource_context = |
| handle->GetWebContents()->GetBrowserContext()->GetResourceContext(); |
| if (filter->IsPluginAvailable(process_id, routing_id, resource_context, |
| handle->GetURL(), url::Origin(), |
| &pdf_plugin_info)) { |
| return nullptr; |
| } |
| #endif |
| |
| // If ENABLE_PLUGINS is false, the PDF plugin is not available, so we should |
| // always intercept PDF iframe navigations. |
| return base::MakeUnique<PDFIFrameNavigationThrottle>(handle); |
| } |
| |
| content::NavigationThrottle::ThrottleCheckResult |
| PDFIFrameNavigationThrottle::WillProcessResponse() { |
| const net::HttpResponseHeaders* response_headers = |
| navigation_handle()->GetResponseHeaders(); |
| if (!response_headers) |
| return content::NavigationThrottle::PROCEED; |
| |
| std::string mime_type; |
| response_headers->GetMimeType(&mime_type); |
| if (mime_type != kPDFMimeType) |
| return content::NavigationThrottle::PROCEED; |
| |
| ReportPDFLoadStatus(PDFLoadStatus::kLoadedIframePdfWithNoPdfViewer); |
| |
| if (!base::FeatureList::IsEnabled(features::kClickToOpenPDFPlaceholder)) |
| return content::NavigationThrottle::PROCEED; |
| |
| std::string html = base::StringPrintf( |
| R"(<body style="margin: 0;"><object data="%s" type="application/pdf" )" |
| R"(style="width: 100%%; height: 100%%;"></object></body>)", |
| navigation_handle()->GetURL().spec().c_str()); |
| GURL data_url("data:text/html," + net::EscapePath(html)); |
| |
| navigation_handle()->GetWebContents()->OpenURL( |
| content::OpenURLParams(data_url, navigation_handle()->GetReferrer(), |
| navigation_handle()->GetFrameTreeNodeId(), |
| WindowOpenDisposition::CURRENT_TAB, |
| ui::PAGE_TRANSITION_AUTO_SUBFRAME, false)); |
| |
| return content::NavigationThrottle::CANCEL_AND_IGNORE; |
| } |
