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print_backend_cups_ipp.cc
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print_backend_cups_ipp.cc
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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_cups_ipp.h"
#include <cups/cups.h>
#include <dlfcn.h>
#include <errno.h>
#include <pthread.h>
#include <memory>
#include <utility>
#include <vector>
#include "base/debug/leak_annotations.h"
#include "base/files/file_util.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/synchronization/lock.h"
#include "base/values.h"
#include "printing/backend/cups_connection.h"
#include "printing/backend/cups_ipp_util.h"
#include "printing/backend/print_backend_consts.h"
#include "printing/units.h"
#include "url/gurl.h"
namespace printing {
PrintBackendCupsIpp::PrintBackendCupsIpp(
std::unique_ptr<CupsConnection> cups_connection)
: cups_connection_(std::move(cups_connection)) {}
PrintBackendCupsIpp::~PrintBackendCupsIpp() {}
bool PrintBackendCupsIpp::EnumeratePrinters(PrinterList* printer_list) {
DCHECK(printer_list);
printer_list->clear();
std::vector<CupsPrinter> printers = cups_connection_->GetDests();
if (printers.empty()) {
LOG(WARNING) << "CUPS: Error getting printers from CUPS server"
<< ", server: " << cups_connection_->server_name()
<< ", error: "
<< static_cast<int>(cups_connection_->last_error());
return false;
}
for (const auto& printer : printers) {
PrinterBasicInfo basic_info;
if (printer.ToPrinterInfo(&basic_info)) {
printer_list->push_back(basic_info);
}
}
return true;
}
std::string PrintBackendCupsIpp::GetDefaultPrinterName() {
std::vector<CupsPrinter> printers = cups_connection_->GetDests();
for (const auto& printer : printers) {
if (printer.is_default()) {
return printer.GetName();
}
}
return std::string();
}
bool PrintBackendCupsIpp::GetPrinterBasicInfo(const std::string& printer_name,
PrinterBasicInfo* printer_info) {
std::unique_ptr<CupsPrinter> printer(
cups_connection_->GetPrinter(printer_name));
if (!printer || !printer->IsAvailable())
return false;
DCHECK_EQ(printer_name, printer->GetName());
return printer->ToPrinterInfo(printer_info);
}
bool PrintBackendCupsIpp::GetPrinterSemanticCapsAndDefaults(
const std::string& printer_name,
PrinterSemanticCapsAndDefaults* printer_info) {
std::unique_ptr<CupsPrinter> printer(
cups_connection_->GetPrinter(printer_name));
if (!printer)
return false;
CapsAndDefaultsFromPrinter(*printer, printer_info);
return true;
}
bool PrintBackendCupsIpp::GetPrinterCapsAndDefaults(
const std::string& printer_name,
PrinterCapsAndDefaults* printer_info) {
DCHECK(printer_info);
// Read the ppd file for Cloud Print. We don't use PPD anymore otherwise.
std::unique_ptr<CupsPrinter> printer(
cups_connection_->GetPrinter(printer_name));
if (!printer)
return false;
base::FilePath ppd_path(printer->GetPPD());
// In some cases CUPS failed to get ppd file.
if (ppd_path.empty()) {
LOG(ERROR) << "CUPS: Failed to get PPD, printer name: " << printer_name;
return false;
}
std::string content;
bool res = base::ReadFileToString(ppd_path, &content);
base::DeleteFile(ppd_path, false);
if (res) {
printer_info->printer_capabilities.swap(content);
printer_info->caps_mime_type = "application/pagemaker";
// In CUPS, printer defaults is a part of PPD file. Nothing to upload here.
printer_info->printer_defaults.clear();
printer_info->defaults_mime_type.clear();
}
return res;
}
std::string PrintBackendCupsIpp::GetPrinterDriverInfo(
const std::string& printer_name) {
std::unique_ptr<CupsPrinter> printer(
cups_connection_->GetPrinter(printer_name));
if (!printer || !printer->IsAvailable())
return std::string();
DCHECK_EQ(printer_name, printer->GetName());
return printer->GetMakeAndModel();
}
bool PrintBackendCupsIpp::IsValidPrinter(const std::string& printer_name) {
std::unique_ptr<CupsPrinter> printer(
cups_connection_->GetPrinter(printer_name));
if (!printer)
return false;
return printer->IsAvailable();
}
} // namespace printing