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// Copyright 2016 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 "printing/backend/print_backend.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "base/values.h"
#include "printing/backend/print_backend_consts.h"
#include "url/gurl.h"
#if defined(USE_CUPS)
#include "printing/backend/print_backend_cups_ipp.h"
#endif // defined(USE_CUPS)
namespace printing {
namespace {
#if defined(USE_CUPS)
std::unique_ptr<CupsConnection> CreateConnection(
const base::DictionaryValue* print_backend_settings) {
std::string print_server_url_str;
std::string cups_blocking;
int encryption = HTTP_ENCRYPT_NEVER;
if (print_backend_settings) {
print_backend_settings->GetString(kCUPSPrintServerURL,
&print_server_url_str);
print_backend_settings->GetString(kCUPSBlocking, &cups_blocking);
print_backend_settings->GetInteger(kCUPSEncryption, &encryption);
}
GURL print_server_url(print_server_url_str);
return std::make_unique<CupsConnection>(
print_server_url, static_cast<http_encryption_t>(encryption),
cups_blocking == kValueTrue);
}
#endif // defined(USE_CUPS)
} // namespace
// Provides either a stubbed out PrintBackend implementation or a CUPS IPP
// implementation for use on ChromeOS.
class PrintBackendChromeOS : public PrintBackend {
public:
PrintBackendChromeOS();
// PrintBackend implementation.
bool EnumeratePrinters(PrinterList* printer_list) override;
std::string GetDefaultPrinterName() override;
bool GetPrinterBasicInfo(const std::string& printer_name,
PrinterBasicInfo* printer_info) override;
bool GetPrinterSemanticCapsAndDefaults(
const std::string& printer_name,
PrinterSemanticCapsAndDefaults* printer_info) override;
bool GetPrinterCapsAndDefaults(const std::string& printer_name,
PrinterCapsAndDefaults* printer_info) override;
std::string GetPrinterDriverInfo(const std::string& printer_name) override;
bool IsValidPrinter(const std::string& printer_name) override;
protected:
~PrintBackendChromeOS() override = default;
};
PrintBackendChromeOS::PrintBackendChromeOS() = default;
bool PrintBackendChromeOS::EnumeratePrinters(PrinterList* printer_list) {
return true;
}
bool PrintBackendChromeOS::GetPrinterBasicInfo(const std::string& printer_name,
PrinterBasicInfo* printer_info) {
return false;
}
bool PrintBackendChromeOS::GetPrinterSemanticCapsAndDefaults(
const std::string& printer_name,
PrinterSemanticCapsAndDefaults* printer_info) {
NOTREACHED();
return false;
}
bool PrintBackendChromeOS::GetPrinterCapsAndDefaults(
const std::string& printer_name,
PrinterCapsAndDefaults* printer_info) {
NOTREACHED();
return false;
}
std::string PrintBackendChromeOS::GetPrinterDriverInfo(
const std::string& printer_name) {
NOTREACHED();
return std::string();
}
std::string PrintBackendChromeOS::GetDefaultPrinterName() {
return std::string();
}
bool PrintBackendChromeOS::IsValidPrinter(const std::string& printer_name) {
NOTREACHED();
return true;
}
// static
scoped_refptr<PrintBackend> PrintBackend::CreateInstanceImpl(
const base::DictionaryValue* print_backend_settings) {
#if defined(USE_CUPS)
return base::WrapRefCounted(
new PrintBackendCupsIpp(CreateConnection(print_backend_settings)));
#else
return base::MakeRefCounted<PrintBackendChromeOS>();
#endif // defined(USE_CUPS)
}
} // namespace printing
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