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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "cloud_print/gcp20/prototype/command_line_reader.h"
      6 
      7 #include "base/command_line.h"
      8 #include "base/logging.h"
      9 #include "base/strings/string_number_conversions.h"
     10 #include "cloud_print/gcp20/prototype/gcp20_switches.h"
     11 
     12 namespace command_line_reader {
     13 
     14 uint16 ReadHttpPort(uint16 default_value) {
     15   uint32 http_port = 0;
     16 
     17   std::string http_port_string =
     18       CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
     19           switches::kHttpPort);
     20 
     21   if (!base::StringToUint(http_port_string, &http_port))
     22     http_port = default_value;
     23 
     24   if (http_port > kuint16max) {
     25     LOG(ERROR) << "HTTP Port is too large";
     26     http_port = default_value;
     27   }
     28 
     29   VLOG(1) << "HTTP port for responses: " << http_port;
     30   return static_cast<uint16>(http_port);
     31 }
     32 
     33 uint32 ReadTtl(uint32 default_value) {
     34   uint32 ttl = 0;
     35 
     36   if (!base::StringToUint(
     37           CommandLine::ForCurrentProcess()->GetSwitchValueASCII(switches::kTtl),
     38           &ttl)) {
     39     ttl = default_value;
     40   }
     41 
     42   VLOG(1) << "TTL for announcements: " << ttl;
     43   return ttl;
     44 }
     45 
     46 std::string ReadServiceNamePrefix(const std::string& default_value) {
     47   std::string service_name =
     48       CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
     49           switches::kServiceName);
     50 
     51   return service_name.empty() ? default_value : service_name;
     52 }
     53 
     54 std::string ReadDomainName(const std::string& default_value) {
     55   std::string domain_name =
     56       CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
     57           switches::kDomainName);
     58 
     59   if (domain_name.empty())
     60     return default_value;
     61 
     62   std::string suffix = ".local";
     63   if (domain_name == suffix) {
     64     LOG(ERROR) << "Domain name cannot be only \"" << suffix << "\"";
     65     return default_value;
     66   }
     67 
     68   if (domain_name.size() < suffix.size() ||
     69       domain_name.substr(domain_name.size() - suffix.size()) != suffix) {
     70     LOG(ERROR) << "Domain name should end with \"" << suffix << "\"";
     71     return default_value;
     72   }
     73 
     74   return domain_name;
     75 }
     76 
     77 std::string ReadStatePath(const std::string& default_value) {
     78   std::string filename = CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
     79       switches::kStatePath);
     80 
     81   if (filename.empty())
     82     return default_value;
     83   return filename;
     84 }
     85 
     86 }  // namespace command_line_reader
     87 
     88