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// Copyright 2015 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/printing/print_dialog_cloud.h"
#include <stddef.h>
#include <stdint.h>
#include "base/base64.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/json/json_writer.h"
#include "base/macros.h"
#include "base/memory/ref_counted_memory.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "base/thread_task_runner_handle.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/scoped_tabbed_browser_displayer.h"
#include "chrome/common/chrome_switches.h"
#include "components/cloud_devices/common/cloud_devices_urls.h"
#include "components/google/core/browser/google_util.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/message_port_provider.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/common/message_port_types.h"
namespace print_dialog_cloud {
namespace {
// Limit is used only to allocate memory. Cloud has own small limit.
const int kMaxFileSize = 1024 * 1024 * 1024;
// Sets print data into Cloud Print widget.
class PrintDataSetter : public content::WebContentsObserver {
public:
PrintDataSetter(content::WebContents* web_contents,
const scoped_refptr<base::RefCountedMemory>& data,
const base::string16& print_job_title,
const base::string16& print_ticket,
const std::string& file_type)
: WebContentsObserver(web_contents) {
DCHECK_NE(data->size(), 0u);
std::string base64_data;
base::Base64Encode(base::StringPiece(data->front_as<char>(), data->size()),
&base64_data);
std::string header("data:");
header.append(file_type);
header.append(";base64,");
base64_data.insert(0, header);
base::DictionaryValue message_data;
message_data.SetString("type", "dataUrl");
message_data.SetString("title", print_job_title);
message_data.SetString("content", base64_data);
std::string json_data;
base::JSONWriter::Write(message_data, &json_data);
message_data_ = L"cp-dialog-set-print-document::";
message_data_.append(base::UTF8ToUTF16(json_data));
}
private:
// Overridden from content::WebContentsObserver:
void DocumentLoadedInFrame(
content::RenderFrameHost* render_frame_host) override {
GURL url = web_contents()->GetURL();
if (cloud_devices::IsCloudPrintURL(url)) {
base::string16 origin = base::UTF8ToUTF16(url.GetOrigin().spec());
content::MessagePortProvider::PostMessageToFrame(
web_contents(), origin, origin, message_data_,
std::vector<content::TransferredMessagePort>());
}
}
void WebContentsDestroyed() override { delete this; }
base::string16 message_data_;
DISALLOW_COPY_AND_ASSIGN(PrintDataSetter);
};
void CreatePrintDialog(content::BrowserContext* browser_context,
const base::string16& print_job_title,
const base::string16& print_ticket,
const std::string& file_type,
const scoped_refptr<base::RefCountedMemory>& data) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
Profile* profile = Profile::FromBrowserContext(browser_context);
chrome::ScopedTabbedBrowserDisplayer displayer(profile,
chrome::GetActiveDesktop());
GURL url = cloud_devices::GetCloudPrintRelativeURL("client/dialog.html");
content::WebContents* web_contents =
displayer.browser()->OpenURL(content::OpenURLParams(
google_util::AppendGoogleLocaleParam(
url, g_browser_process->GetApplicationLocale()),
content::Referrer(), NEW_FOREGROUND_TAB,
ui::PAGE_TRANSITION_AUTO_BOOKMARK, false));
if (data && data->size()) {
new PrintDataSetter(web_contents, data, print_job_title, print_ticket,
file_type);
}
}
scoped_refptr<base::RefCountedMemory> ReadFile(
const base::FilePath& path_to_file) {
DCHECK_CURRENTLY_ON(content::BrowserThread::FILE);
scoped_refptr<base::RefCountedMemory> data;
int64_t file_size = 0;
if (base::GetFileSize(path_to_file, &file_size) && file_size != 0) {
if (file_size > kMaxFileSize) {
DLOG(WARNING) << " print data file too large to reserve space";
return data;
}
std::string file_data;
file_data.reserve(static_cast<size_t>(file_size));
if (base::ReadFileToString(path_to_file, &file_data))
data = base::RefCountedString::TakeString(&file_data);
}
base::DeleteFile(path_to_file, false);
return data;
}
void CreatePrintDialogForFile(content::BrowserContext* browser_context,
const base::FilePath& path_to_file,
const base::string16& print_job_title,
const base::string16& print_ticket,
const std::string& file_type) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
content::BrowserThread::PostTaskAndReplyWithResult(
content::BrowserThread::FILE, FROM_HERE,
base::Bind(&ReadFile, path_to_file),
base::Bind(&CreatePrintDialog, browser_context,
print_job_title, print_ticket, file_type));
}
} // namespace
bool CreatePrintDialogFromCommandLine(Profile* profile,
const base::CommandLine& command_line) {
base::FilePath cloud_print_file =
command_line.GetSwitchValuePath(switches::kCloudPrintFile);
DCHECK(!cloud_print_file.empty());
if (cloud_print_file.empty())
return false;
base::string16 print_job_title =
command_line.GetSwitchValueNative(switches::kCloudPrintJobTitle);
base::string16 print_job_print_ticket =
command_line.GetSwitchValueNative(switches::kCloudPrintPrintTicket);
std::string file_type =
command_line.GetSwitchValueASCII(switches::kCloudPrintFileType);
if (file_type.empty())
file_type = "application/pdf";
CreatePrintDialogForFile(profile, cloud_print_file, print_job_title,
print_job_print_ticket, file_type);
return true;
}
} // namespace print_dialog_cloud
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