| 1 | /** @file |
| 2 | * @brief DHS Service class implementation. This class represents the DHS service. |
| 3 | * |
| 4 | * |
| 5 | * |
| 6 | * @copyright Intra2net AG |
| 7 | * @license GPLv2 |
| 8 | */ |
| 9 | |
| 10 | #include "service_dhs.hpp" |
| 11 | |
| 12 | #include <time.h> |
| 13 | #include <boost/foreach.hpp> |
| 14 | #include <boost/algorithm/string.hpp> |
| 15 | #include <boost/regex.hpp> |
| 16 | |
| 17 | namespace ba = boost::algorithm; |
| 18 | |
| 19 | using namespace std; |
| 20 | |
| 21 | |
| 22 | /** |
| 23 | * Default Constructor, needed for object serialization. |
| 24 | */ |
| 25 | ServiceDhs::ServiceDhs() |
| 26 | { |
| 27 | } |
| 28 | |
| 29 | |
| 30 | /** |
| 31 | * Constructor. |
| 32 | * @param _hostname The hostname to update |
| 33 | * @param _login The login name. |
| 34 | * @param _password The corresponding password. |
| 35 | */ |
| 36 | ServiceDhs::ServiceDhs(const string& _protocol, const string& _hostname, const string& _login, const string& _password, const Logger::Ptr& _logger, const int _update_interval, const int _max_updates_within_interval, const int _max_equal_updates_in_succession, const int _dns_cache_ttl, const string& _proxy, const int _proxy_port) |
| 37 | { |
| 38 | if ( _update_interval == -1 ) // If _update_interval is default po::option_desc (not specified via config) |
| 39 | set_update_interval(15); // use default protocol value |
| 40 | else |
| 41 | set_update_interval(_update_interval); |
| 42 | |
| 43 | if ( _max_updates_within_interval == -1 ) |
| 44 | set_max_updates_within_interval(3); |
| 45 | else |
| 46 | set_max_updates_within_interval(_max_updates_within_interval); |
| 47 | |
| 48 | if ( _max_equal_updates_in_succession == -1 ) |
| 49 | set_max_equal_updates_in_succession(2); |
| 50 | else |
| 51 | set_max_equal_updates_in_succession(_max_equal_updates_in_succession); |
| 52 | |
| 53 | if ( _dns_cache_ttl == -1 ) |
| 54 | set_dns_cache_ttl(7200); |
| 55 | else |
| 56 | set_dns_cache_ttl(_dns_cache_ttl); |
| 57 | |
| 58 | set_protocol(_protocol); |
| 59 | set_hostname(_hostname); |
| 60 | set_login(_login); |
| 61 | set_password(_password); |
| 62 | set_logger(_logger); |
| 63 | |
| 64 | // create http helper class |
| 65 | HTTPHelp = HTTPHelper::Ptr(new HTTPHelper(_logger,_proxy,_proxy_port,_login,_password)); |
| 66 | |
| 67 | // extract domain part from hostname |
| 68 | list<string> host_domain_part = separate_domain_and_host_part(get_hostname()); |
| 69 | |
| 70 | BaseUrl = assemble_base_url(host_domain_part.front(),host_domain_part.back()); /*lint !e864 */ |
| 71 | } |
| 72 | |
| 73 | |
| 74 | /** |
| 75 | * Default destructor |
| 76 | */ |
| 77 | ServiceDhs::~ServiceDhs() |
| 78 | { |
| 79 | } |
| 80 | |
| 81 | |
| 82 | /** |
| 83 | * Assemble the dhs update url from the given hostname and domain part |
| 84 | * @param hostname The hostname to update IP for. |
| 85 | * @param domain_part The domain_part in which the hostname is located. |
| 86 | * @return The assembled update url without IP. |
| 87 | */ |
| 88 | string ServiceDhs::assemble_base_url(const string& hostname, const string& domain_part) const |
| 89 | { |
| 90 | string base_url; |
| 91 | |
| 92 | base_url = "http://members.dhs.org"; |
| 93 | base_url.append("/nic/hosts?hostscmd=edit&hostscmdstage=2&type=4&domain="); |
| 94 | base_url.append(domain_part); |
| 95 | base_url.append("&hostname="); |
| 96 | base_url.append(hostname); |
| 97 | base_url.append("&updatetype=Online&ip="); |
| 98 | |
| 99 | return base_url; |
| 100 | } |
| 101 | |
| 102 | |
| 103 | /** |
| 104 | * Separates the hostname from the domain part. |
| 105 | * @param fqdn Hostname with domain part. |
| 106 | * @return A list with 2 elements (first element is the hostname, second element the domain part), or a list with 1 element if the domain part couldn't be determined. |
| 107 | */ |
| 108 | list<string> ServiceDhs::separate_domain_and_host_part(const string& fqdn) const |
| 109 | { |
| 110 | list<string> splitted; |
| 111 | ba::split(splitted,fqdn,boost::is_any_of(".")); |
| 112 | |
| 113 | if ( splitted.size() > 1 ) |
| 114 | { |
| 115 | string host = splitted.front(); |
| 116 | splitted.pop_front(); |
| 117 | |
| 118 | string domain = splitted.front(); |
| 119 | splitted.pop_front(); |
| 120 | |
| 121 | BOOST_FOREACH(string domain_part, splitted) |
| 122 | { |
| 123 | domain.append("."); |
| 124 | domain.append(domain_part); |
| 125 | } |
| 126 | |
| 127 | splitted.clear(); |
| 128 | splitted.push_back(host); |
| 129 | splitted.push_back(domain); |
| 130 | } |
| 131 | |
| 132 | return splitted; |
| 133 | } |
| 134 | |
| 135 | |
| 136 | /** |
| 137 | * Performs the Service update. |
| 138 | * @param ip IP Address to set. |
| 139 | * @return 0 if all is fine, -1 otherwise. |
| 140 | */ |
| 141 | Service::UpdateErrorCode ServiceDhs::perform_update(const std::string& ip) |
| 142 | { |
| 143 | string url = BaseUrl; |
| 144 | url.append(ip); |
| 145 | |
| 146 | if ( HTTPHelp->is_initialized() ) |
| 147 | { |
| 148 | // Perform curl operation on given url. |
| 149 | long http_status_code = HTTPHelp->http_get(url); |
| 150 | |
| 151 | get_logger()->print_http_status_code(url,http_status_code); |
| 152 | |
| 153 | // Check the status code for protocol errors. |
| 154 | if ( http_status_code == 200 ) |
| 155 | { |
| 156 | // Get the received http data. |
| 157 | string curl_data = HTTPHelp->get_curl_data(); |
| 158 | |
| 159 | // Search for the following string in the received http data |
| 160 | boost::regex expr_done("Updating ip on .*: done"); |
| 161 | if ( boost::regex_search(curl_data,expr_done) ) |
| 162 | { |
| 163 | // Update successful |
| 164 | return UpdateOk; |
| 165 | } |
| 166 | else |
| 167 | { |
| 168 | get_logger()->print_update_failure(url,curl_data); |
| 169 | return UpdateError; |
| 170 | } |
| 171 | } |
| 172 | else if ( http_status_code == 401 ) |
| 173 | { |
| 174 | get_logger()->print_service_not_authorized(url,get_login(),get_password()); |
| 175 | return NotAuth; |
| 176 | } |
| 177 | else |
| 178 | { |
| 179 | get_logger()->print_update_failure(url,http_status_code); |
| 180 | } |
| 181 | } |
| 182 | else |
| 183 | { |
| 184 | get_logger()->print_httphelper_not_initialized(); |
| 185 | HTTPHelp->re_initialize(); |
| 186 | } |
| 187 | |
| 188 | return GenericError; |
| 189 | } |