2 * @brief GNUDIP Service class implementation. This class represents the GNUDIP service.
6 * @copyright Intra2net AG
10 #include "service_gnudip.hpp"
14 #include <boost/foreach.hpp>
15 #include <boost/regex.hpp>
21 * Default Constructor, needed for object serialization.
23 ServiceGnudip::ServiceGnudip()
30 * @param _hostname The hostname to update
31 * @param _login The login name.
32 * @param _password The corresponding password.
34 ServiceGnudip::ServiceGnudip(const string& _protocol, const string& _gnudip_server, 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 _dns_cache_ttl, const string& _proxy, const int _proxy_port)
35 : GnudipServer(_gnudip_server)
37 if ( _update_interval == -1 ) // If _update_interval is default po::option_desc (not specified via config)
38 set_update_interval(0); // use default protocol value
40 set_update_interval(_update_interval);
42 if ( _max_updates_within_interval == -1 )
43 set_max_updates_within_interval(0);
45 set_max_updates_within_interval(_max_updates_within_interval);
47 if ( _dns_cache_ttl == -1 )
48 set_dns_cache_ttl(60);
50 set_dns_cache_ttl(_dns_cache_ttl);
52 set_protocol(_protocol);
53 set_hostname(_hostname);
55 set_password(_password);
58 // create http helper class
59 HTTPHelp = HTTPHelper::Ptr(new HTTPHelper(_logger,_proxy,_proxy_port,_login,_password));
61 BaseUrl = assemble_base_url(_gnudip_server);
68 ServiceGnudip::~ServiceGnudip()
74 * Assemble the dyndns update url from the given fqhn
75 * @param gnudip_server The gnudip update server.
76 * @return The assembled update url without IP.
78 string ServiceGnudip::assemble_base_url(const string& gnudip_server) const
83 base_url.append(gnudip_server);
84 base_url.append("/gnudip/cgi-bin/gdipupdt.cgi");
91 * Parses the data received from the initial request, which should contain salt, time and sign.
92 * @param curl_data The complete received curl data.
93 * @return A map with salt, time and sign or an empty map.
95 map<string,string> ServiceGnudip::parse_initial_request(const string& curl_data) const
97 map<string,string> response;
100 boost::regex expr_salt("<meta name=\"salt\" content=\"(.*)\">");
102 boost::regex expr_time("<meta name=\"time\" content=\"(.*)\">");
104 boost::regex expr_sign("<meta name=\"sign\" content=\"(.*)\">");
106 boost::smatch matches;
108 // Get the salt out of received http data
109 if ( boost::regex_search(curl_data,matches,expr_salt) )
111 response.insert(pair<string,string>("salt",matches[1].str())); /*lint !e534 */
112 get_logger()->print_regex_match(expr_salt.str(),matches[1].str());
116 get_logger()->print_no_regex_match(expr_salt.str(),curl_data);
121 // Get the time out of received http data
122 if ( boost::regex_search(curl_data,matches,expr_time) )
124 response.insert(pair<string,string>("time",matches[1].str())); /*lint !e534 */
125 get_logger()->print_regex_match(expr_salt.str(),matches[1].str());
129 get_logger()->print_no_regex_match(expr_salt.str(),curl_data);
134 // Get the sign out of received http data
135 if ( boost::regex_search(curl_data,matches,expr_sign) )
137 response.insert(pair<string,string>("sign",matches[1].str())); /*lint !e534 */
138 get_logger()->print_regex_match(expr_salt.str(),matches[1].str());
142 get_logger()->print_no_regex_match(expr_salt.str(),curl_data);
152 * Get the assembled update url.
153 * @param salt Salt from the initial request
154 * @param time Time from the initial request
155 * @param sign Sign from the initial request
156 * @param secret Computed md5 secret in HEX
157 * @param ip IP to update
158 * @return The assembled update url.
160 string ServiceGnudip::assemble_update_url(const string& salt, const string& curr_time, const string& sign, const string& secret, const string& ip) const
162 string url = BaseUrl;
164 url.append("?salt=");
166 url.append("&time=");
167 url.append(curr_time);
168 url.append("&sign=");
170 url.append("&user=");
171 url.append(get_login());
172 url.append("&domn=");
173 url.append(get_hostname());
174 url.append("&pass=");
176 url.append("&reqc=0&addr=");
184 * Performs the Service update.
185 * @param ip IP Address to set.
186 * @return 0 if all is fine, -1 otherwise.
188 int ServiceGnudip::perform_update(const std::string& ip)
190 if ( HTTPHelp->is_initialized() )
193 long http_status_code = HTTPHelp->http_get(BaseUrl);
195 get_logger()->print_http_status_code(BaseUrl,http_status_code);
197 if ( http_status_code == 200 )
199 // Get the received http data which should contain the salt, time and sign
200 string curl_data = HTTPHelp->get_curl_data();
202 // Parse salt, time and sign out of the received data
203 map<string,string> salt_time_sign = parse_initial_request(curl_data);
205 if ( salt_time_sign.empty() )
207 get_logger()->print_could_not_parse_received_data(curl_data);
211 // at this point we have salt, time and sign parsed successfully
212 string salt, sign_time, sign;
214 map<string,string>::iterator iter = salt_time_sign.find("salt");
215 if ( iter != salt_time_sign.end() )
218 iter = salt_time_sign.find("time");
219 if ( iter != salt_time_sign.end() )
220 sign_time = iter->second;
222 iter = salt_time_sign.find("sign");
223 if ( iter != salt_time_sign.end() )
226 if ( salt.empty() || sign_time.empty() || sign.empty() )
227 get_logger()->print_could_not_get_initial_gnudip_data();
229 // compute md5 sum from users password and get the HEX representation
233 pw_md5_hex = Util::compute_md5_digest(get_password());
235 catch ( exception& e )
237 get_logger()->print_exception_md5_sum(e.what());
242 get_logger()->print_exception_md5_sum("Unknown exception");
246 // append "." and salt and compute md5 sum and get the HEX representation
247 pw_md5_hex.append(".");
248 pw_md5_hex.append(salt);
253 secret = Util::compute_md5_digest(pw_md5_hex);
255 catch ( exception& e )
257 get_logger()->print_exception_md5_sum(e.what());
262 get_logger()->print_exception_md5_sum("Unknown exception");
266 // Now its time to issue the second http_get operation
267 string url = assemble_update_url(salt, sign_time, sign, secret, ip);
269 // perform the update operation
270 http_status_code = HTTPHelp->http_get(url);
272 get_logger()->print_http_status_code(url,http_status_code);
274 if ( http_status_code == 200 )
276 // parse the update request return code
277 string update_return_code = HTTPHelp->get_curl_data();
278 if ( update_return_code == "0" )
282 else if ( update_return_code == "1" )
284 get_logger()->print_service_not_authorized(url,get_login(),get_password());
288 get_logger()->print_update_failure(url,update_return_code);
293 // second http get operation (update) was not successful
294 get_logger()->print_update_failure(url,http_status_code);
299 // first http get operation was not successful
300 get_logger()->print_update_failure(BaseUrl,http_status_code);
305 get_logger()->print_httphelper_not_initialized();
306 HTTPHelp->re_initialize();