prosody
079e4cb23f89
core/portmanager.lua

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core/portmanager.lua @ 5225:079e4cb23f89

portmanager: Return first service with the specified name from get_service() (instead of the array of possible services) (thanks xnyhps)
author Matthew Wild <mwild1@gmail.com>
date Tue, 04 Dec 2012 20:08:44 +0000
parent 5087:71a5a6a6c74c
child 5319:d20861bf900b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 local config = require "core.configmanager";
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2 local certmanager = require "core.certmanager";
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3 local server = require "net.server";
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4
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5 local log = require "util.logger".init("portmanager");
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6 local multitable = require "util.multitable";
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7 local set = require "util.set";
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8
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9 local table = table;
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10 local setmetatable, rawset, rawget = setmetatable, rawset, rawget;
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11 local type, tonumber, ipairs = type, tonumber, ipairs;
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12
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13 local prosody = prosody;
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14 local fire_event = prosody.events.fire_event;
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15
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16 module "portmanager";
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17
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18 --- Config
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19
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20 local default_interfaces = { "*" };
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21 local default_local_interfaces = { "127.0.0.1" };
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22 if config.get("*", "use_ipv6") then
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23 table.insert(default_interfaces, "::");
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24 table.insert(default_local_interfaces, "::1");
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25 end
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26
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27 --- Private state
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28
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29 -- service_name -> { service_info, ... }
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30 local services = setmetatable({}, { __index = function (t, k) rawset(t, k, {}); return rawget(t, k); end });
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31
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32 -- service_name, interface (string), port (number)
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33 local active_services = multitable.new();
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34
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35 --- Private helpers
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36
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37 local function error_to_friendly_message(service_name, port, err)
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38 local friendly_message = err;
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39 if err:match(" in use") then
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40 -- FIXME: Use service_name here
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41 if port == 5222 or port == 5223 or port == 5269 then
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42 friendly_message = "check that Prosody or another XMPP server is "
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43 .."not already running and using this port";
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44 elseif port == 80 or port == 81 then
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45 friendly_message = "check that a HTTP server is not already using "
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46 .."this port";
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47 elseif port == 5280 then
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48 friendly_message = "check that Prosody or a BOSH connection manager "
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49 .."is not already running";
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50 else
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51 friendly_message = "this port is in use by another application";
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52 end
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53 elseif err:match("permission") then
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54 friendly_message = "Prosody does not have sufficient privileges to use this port";
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55 end
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56 return friendly_message;
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57 end
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58
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59 prosody.events.add_handler("item-added/net-provider", function (event)
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60 local item = event.item;
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61 register_service(item.name, item);
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62 end);
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63 prosody.events.add_handler("item-removed/net-provider", function (event)
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64 local item = event.item;
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65 unregister_service(item.name, item);
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66 end);
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67
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68 --- Public API
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69
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70 function activate(service_name)
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71 local service_info = services[service_name][1];
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72 if not service_info then
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73 return nil, "Unknown service: "..service_name;
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74 end
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75
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76 local listener = service_info.listener;
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77
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78 local config_prefix = (service_info.config_prefix or service_name).."_";
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79 if config_prefix == "_" then
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80 config_prefix = "";
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81 end
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82
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83 local bind_interfaces = config.get("*", config_prefix.."interfaces")
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84 or config.get("*", config_prefix.."interface") -- COMPAT w/pre-0.9
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85 or (service_info.private and (config.get("*", "local_interfaces") or default_local_interfaces))
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86 or config.get("*", "interfaces")
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87 or config.get("*", "interface") -- COMPAT w/pre-0.9
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88 or listener.default_interface -- COMPAT w/pre0.9
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89 or default_interfaces
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90 bind_interfaces = set.new(type(bind_interfaces)~="table" and {bind_interfaces} or bind_interfaces);
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91
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92 local bind_ports = set.new(config.get("*", config_prefix.."ports")
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93 or service_info.default_ports
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94 or {service_info.default_port
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95 or listener.default_port -- COMPAT w/pre-0.9
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96 });
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97
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98 local mode, ssl = listener.default_mode or "*a";
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99
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100 for interface in bind_interfaces do
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101 for port in bind_ports do
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102 port = tonumber(port);
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103 if #active_services:search(nil, interface, port) > 0 then
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104 log("error", "Multiple services configured to listen on the same port ([%s]:%d): %s, %s", interface, port, active_services:search(nil, interface, port)[1][1].service.name or "<unnamed>", service_name or "<unnamed>");
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105 else
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106 local err;
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107 -- Create SSL context for this service/port
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108 if service_info.encryption == "ssl" then
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109 local ssl_config = config.get("*", config_prefix.."ssl");
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110 ssl, err = certmanager.create_context(service_info.name.." port "..port, "server", ssl_config and (ssl_config[port]
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111 or (ssl_config.certificate and ssl_config)));
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112 if not ssl then
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113 log("error", "Error binding encrypted port for %s: %s", service_info.name, error_to_friendly_message(service_name, port, err) or "unknown error");
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114 end
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115 end
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116 if not err then
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117 -- Start listening on interface+port
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118 local handler, err = server.addserver(interface, port, listener, mode, ssl);
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119 if not handler then
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120 log("error", "Failed to open server port %d on %s, %s", port, interface, error_to_friendly_message(service_name, port, err));
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121 else
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122 log("debug", "Added listening service %s to [%s]:%d", service_name, interface, port);
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123 active_services:add(service_name, interface, port, {
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124 server = handler;
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125 service = service_info;
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126 });
b27ba2c83dd4 portmanager: Show a friendly error message when initializing SSL fails (thanks MattJ for the entire patch that I fixed one line in)
Kim Alvefur <zash@zash.se>
parents: 4902
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127 end
4542
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128 end
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129 end
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130 end
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Matthew Wild <mwild1@gmail.com>
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131 end
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132 log("info", "Activated service '%s'", service_name);
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7f45b2cb3c03 portmanager: Add unregister_service(), and allow multiple services with the same name (they get queued)
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parents: 4598
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133 return true;
4542
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134 end
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135
4897
1a90e5225b22 portmanager: Fix to deactivate services when they are unregistered (metatable:iter() wins)
Matthew Wild <mwild1@gmail.com>
parents: 4861
diff changeset
136 function deactivate(service_name, service_info)
4902
a7c799a7a34b portmanager: Match service against service_info (:iter() doesn't match values)
Matthew Wild <mwild1@gmail.com>
parents: 4897
diff changeset
137 for name, interface, port, n, active_service
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Matthew Wild <mwild1@gmail.com>
parents: 4897
diff changeset
138 in active_services:iter(service_name or service_info and service_info.name, nil, nil, nil) do
a7c799a7a34b portmanager: Match service against service_info (:iter() doesn't match values)
Matthew Wild <mwild1@gmail.com>
parents: 4897
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139 if service_info == nil or active_service.service == service_info then
a7c799a7a34b portmanager: Match service against service_info (:iter() doesn't match values)
Matthew Wild <mwild1@gmail.com>
parents: 4897
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140 close(interface, port);
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Matthew Wild <mwild1@gmail.com>
parents: 4897
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141 end
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142 end
4897
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parents: 4861
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143 log("info", "Deactivated service '%s'", service_name or service_info.name);
4542
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144 end
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145
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146 function register_service(service_name, service_info)
4607
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Matthew Wild <mwild1@gmail.com>
parents: 4598
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147 table.insert(services[service_name], service_info);
4542
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148
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parents: 4598
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149 if not active_services:get(service_name) then
7f45b2cb3c03 portmanager: Add unregister_service(), and allow multiple services with the same name (they get queued)
Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
150 log("debug", "No active service for %s, activating...", service_name);
4743
70d68e789d93 portmanager: Rename activate_service() to activate() (to match deactivate())
Matthew Wild <mwild1@gmail.com>
parents: 4742
diff changeset
151 local ok, err = activate(service_name);
4607
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Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
152 if not ok then
7f45b2cb3c03 portmanager: Add unregister_service(), and allow multiple services with the same name (they get queued)
Matthew Wild <mwild1@gmail.com>
parents: 4598
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153 log("error", "Failed to activate service '%s': %s", service_name, err or "unknown error");
7f45b2cb3c03 portmanager: Add unregister_service(), and allow multiple services with the same name (they get queued)
Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
154 end
4542
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155 end
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parents:
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156
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157 fire_event("service-added", { name = service_name, service = service_info });
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158 return true;
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159 end
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parents:
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160
4607
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Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
161 function unregister_service(service_name, service_info)
4897
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parents: 4861
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162 log("debug", "Unregistering service: %s", service_name);
4607
7f45b2cb3c03 portmanager: Add unregister_service(), and allow multiple services with the same name (they get queued)
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parents: 4598
diff changeset
163 local service_info_list = services[service_name];
7f45b2cb3c03 portmanager: Add unregister_service(), and allow multiple services with the same name (they get queued)
Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
164 for i, service in ipairs(service_info_list) do
7f45b2cb3c03 portmanager: Add unregister_service(), and allow multiple services with the same name (they get queued)
Matthew Wild <mwild1@gmail.com>
parents: 4598
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165 if service == service_info then
7f45b2cb3c03 portmanager: Add unregister_service(), and allow multiple services with the same name (they get queued)
Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
166 table.remove(service_info_list, i);
7f45b2cb3c03 portmanager: Add unregister_service(), and allow multiple services with the same name (they get queued)
Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
167 end
7f45b2cb3c03 portmanager: Add unregister_service(), and allow multiple services with the same name (they get queued)
Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
168 end
4897
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Matthew Wild <mwild1@gmail.com>
parents: 4861
diff changeset
169 deactivate(nil, service_info);
1a90e5225b22 portmanager: Fix to deactivate services when they are unregistered (metatable:iter() wins)
Matthew Wild <mwild1@gmail.com>
parents: 4861
diff changeset
170 if #service_info_list > 0 then -- Other services registered with this name
1a90e5225b22 portmanager: Fix to deactivate services when they are unregistered (metatable:iter() wins)
Matthew Wild <mwild1@gmail.com>
parents: 4861
diff changeset
171 activate(service_name); -- Re-activate with the next available one
4607
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Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
172 end
4612
8bb93860fe46 portmanager: Fire service-removed on unregister
Matthew Wild <mwild1@gmail.com>
parents: 4609
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173 fire_event("service-removed", { name = service_name, service = service_info });
4607
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Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
174 end
7f45b2cb3c03 portmanager: Add unregister_service(), and allow multiple services with the same name (they get queued)
Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
175
4677
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Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
176 function close(interface, port)
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
177 local service, server = get_service_at(interface, port);
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
178 if not service then
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
179 return false, "port-not-open";
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Matthew Wild <mwild1@gmail.com>
parents: 4624
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180 end
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
181 server:close();
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
182 active_services:remove(service.name, interface, port);
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
183 log("debug", "Removed listening service %s from [%s]:%d", service.name, interface, port);
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
184 return true;
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
185 end
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
186
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
187 function get_service_at(interface, port)
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
188 local data = active_services:search(nil, interface, port)[1][1];
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
189 return data.service, data.server;
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
190 end
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
191
4597
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Matthew Wild <mwild1@gmail.com>
parents: 4583
diff changeset
192 function get_service(service_name)
5225
079e4cb23f89 portmanager: Return first service with the specified name from get_service() (instead of the array of possible services) (thanks xnyhps)
Matthew Wild <mwild1@gmail.com>
parents: 5087
diff changeset
193 return (services[service_name] or {})[1];
4597
25d89c7d6aee portmanager: Add get_service()
Matthew Wild <mwild1@gmail.com>
parents: 4583
diff changeset
194 end
4542
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parents:
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195
4598
d2bcb959d713 portmanager: Add get_active_services()
Matthew Wild <mwild1@gmail.com>
parents: 4597
diff changeset
196 function get_active_services(...)
d2bcb959d713 portmanager: Add get_active_services()
Matthew Wild <mwild1@gmail.com>
parents: 4597
diff changeset
197 return active_services;
d2bcb959d713 portmanager: Add get_active_services()
Matthew Wild <mwild1@gmail.com>
parents: 4597
diff changeset
198 end
d2bcb959d713 portmanager: Add get_active_services()
Matthew Wild <mwild1@gmail.com>
parents: 4597
diff changeset
199
4618
1ec8122ddffe portmanager: Add get_registered_services() to the public API
Matthew Wild <mwild1@gmail.com>
parents: 4617
diff changeset
200 function get_registered_services()
1ec8122ddffe portmanager: Add get_registered_services() to the public API
Matthew Wild <mwild1@gmail.com>
parents: 4617
diff changeset
201 return services;
1ec8122ddffe portmanager: Add get_registered_services() to the public API
Matthew Wild <mwild1@gmail.com>
parents: 4617
diff changeset
202 end
1ec8122ddffe portmanager: Add get_registered_services() to the public API
Matthew Wild <mwild1@gmail.com>
parents: 4617
diff changeset
203
4542
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parents:
diff changeset
204 return _M;