Fawkes API Fawkes Development Version
service_browse_handler.cpp
1
2/***************************************************************************
3 * service_browse_handler.cpp - Webview service browser
4 *
5 * Created: Thu Jul 02 18:00:20 2009 (RoboCup 2009, Graz)
6 * Copyright 2006-2009 Tim Niemueller [www.niemueller.de]
7 *
8 ****************************************************************************/
9
10/* This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Library General Public License for more details.
19 *
20 * Read the full text in the LICENSE.GPL file in the doc directory.
21 */
22
23#include "service_browse_handler.h"
24
25#include <logging/logger.h>
26
27using namespace fawkes;
28
29/** @class WebviewServiceBrowseHandler "service_browse_handler.h"
30 * Browse handler to detect other Webview instances on the network.
31 * This browse handler is used to compile a list of other webview instances
32 * on the local network. It is used to show a list of hosts in the footer of
33 * webview pages.
34 * @author Tim Niemueller
35 */
36
37/** Constructor.
38 * @param logger logger for informational logging
39 * @param webview_service service of our own service as it was announced on the
40 * network, used to filter it out from the list of services.
41 */
43 fawkes::NetworkService *webview_service)
44{
45 logger_ = logger;
46 webview_service_ = webview_service;
47}
48
49WebviewServiceBrowseHandler::~WebviewServiceBrowseHandler()
50{
51 for (ServiceList::iterator s = service_list_.begin(); s != service_list_.end(); ++s) {
52 delete s->second;
53 }
54 service_list_.clear();
55}
56
57void
59{
60 //logger_->log_debug("WebviewServiceBrowseHandler", "All for now");
61}
62
63void
65{
66 //logger_->log_debug("WebviewServiceBrowseHandler", "Cache exhausted");
67}
68
69void
70WebviewServiceBrowseHandler::browse_failed(const char *name, const char *type, const char *domain)
71{
72 logger_->log_warn(
73 "WebviewServiceBrowseHandler", "Browsing for %s.%s in domain %s failed", name, type, domain);
74}
75
76void
78 const char * type,
79 const char * domain,
80 const char * host_name,
81 const char * interface,
82 const struct sockaddr * addr,
83 const socklen_t addr_size,
84 uint16_t port,
85 std::list<std::string> &txt,
86 int flags)
87{
88 if (service_list_.find(name) != service_list_.end()) {
89 delete service_list_[name];
90 service_list_.erase(name);
91 }
92 // Check for fawkesver txt record
93 for (std::list<std::string>::iterator i = txt.begin(); i != txt.end(); ++i) {
94 std::string::size_type eqind = i->find("=");
95 if (eqind != std::string::npos) {
96 std::string key = i->substr(0, eqind);
97 std::string val = i->substr(eqind + 1);
98 if (key == "fawkesver") {
100 new NetworkService(name, type, domain, host_name, port, addr, addr_size, txt);
101
102 if (!(*s == *webview_service_)) {
103 logger_->log_debug("WebviewServiceBrowseHandler",
104 "Service %s.%s on %s:%u added",
105 name,
106 type,
107 host_name,
108 port);
109 service_list_[name] = s;
110 } else {
111 delete s;
112 }
113 break;
114 }
115 }
116 }
117}
118
119void
120WebviewServiceBrowseHandler::service_removed(const char *name, const char *type, const char *domain)
121{
122 if (service_list_.find(name) != service_list_.end()) {
123 delete service_list_[name];
124 service_list_.erase(name);
125 }
126 logger_->log_debug("WebviewServiceBrowseHandler", "Service %s.%s has been removed", name, type);
127}
128
129/** Get the service list.
130 * @return a list of services found on the network.
131 */
134{
135 return service_list_;
136}
virtual void browse_failed(const char *name, const char *type, const char *domain)
Failed to browse for a given service.
virtual void cache_exhausted()
Cache exhausted.
virtual void service_added(const char *name, const char *type, const char *domain, const char *host_name, const char *interface, const struct sockaddr *addr, const socklen_t addr_size, uint16_t port, std::list< std::string > &txt, int flags)
A service has been announced on the network.
WebviewServiceBrowseHandler(fawkes::Logger *logger, fawkes::NetworkService *webview_service)
Constructor.
std::map< std::string, fawkes::NetworkService * > ServiceList
A map of services.
virtual void service_removed(const char *name, const char *type, const char *domain)
A service has been removed from the network.
ServiceList & service_list()
Get the service list.
virtual void all_for_now()
All results have been retrieved.
Interface for logging.
Definition: logger.h:42
virtual void log_debug(const char *component, const char *format,...)=0
Log debug message.
virtual void log_warn(const char *component, const char *format,...)=0
Log warning message.
Representation of a service announced or found via service discovery (i.e.
Definition: service.h:38
Fawkes library namespace.