prosody
13454b2b86bf
core/portmanager.lua

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core/portmanager.lua @ 5399:13454b2b86bf

portmanager: Log error and fail to bind when port is invalid (not a number)
author Matthew Wild <mwild1@gmail.com>
date Sun, 31 Mar 2013 12:27:28 +0100
parent 5392:613959dbd0b2
child 5426:1b20095eb230
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 local socket = require "socket";
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5
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6 local log = require "util.logger".init("portmanager");
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7 local multitable = require "util.multitable";
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8 local set = require "util.set";
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9
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10 local table = table;
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11 local setmetatable, rawset, rawget = setmetatable, rawset, rawget;
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12 local type, tonumber, tostring, ipairs = type, tonumber, tostring, ipairs;
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13
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14 local prosody = prosody;
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15 local fire_event = prosody.events.fire_event;
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16
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17 module "portmanager";
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18
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19 --- Config
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20
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21 local default_interfaces = { };
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22 local default_local_interfaces = { };
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23 if config.get("*", "use_ipv4") ~= false then
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24 table.insert(default_interfaces, "*");
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25 table.insert(default_local_interfaces, "127.0.0.1");
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26 end
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27 if socket.tcp6 and config.get("*", "use_ipv6") ~= false then
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28 table.insert(default_interfaces, "::");
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29 table.insert(default_local_interfaces, "::1");
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30 end
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31
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32 --- Private state
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33
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34 -- service_name -> { service_info, ... }
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35 local services = setmetatable({}, { __index = function (t, k) rawset(t, k, {}); return rawget(t, k); end });
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36
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37 -- service_name, interface (string), port (number)
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38 local active_services = multitable.new();
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39
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40 --- Private helpers
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41
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42 local function error_to_friendly_message(service_name, port, err)
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43 local friendly_message = err;
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44 if err:match(" in use") then
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45 -- FIXME: Use service_name here
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46 if port == 5222 or port == 5223 or port == 5269 then
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47 friendly_message = "check that Prosody or another XMPP server is "
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48 .."not already running and using this port";
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49 elseif port == 80 or port == 81 then
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50 friendly_message = "check that a HTTP server is not already using "
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51 .."this port";
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52 elseif port == 5280 then
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53 friendly_message = "check that Prosody or a BOSH connection manager "
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54 .."is not already running";
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55 else
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56 friendly_message = "this port is in use by another application";
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57 end
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58 elseif err:match("permission") then
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59 friendly_message = "Prosody does not have sufficient privileges to use this port";
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60 end
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61 return friendly_message;
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62 end
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63
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64 prosody.events.add_handler("item-added/net-provider", function (event)
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65 local item = event.item;
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66 register_service(item.name, item);
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67 end);
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68 prosody.events.add_handler("item-removed/net-provider", function (event)
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69 local item = event.item;
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70 unregister_service(item.name, item);
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71 end);
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72
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73 --- Public API
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74
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75 function activate(service_name)
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76 local service_info = services[service_name][1];
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77 if not service_info then
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78 return nil, "Unknown service: "..service_name;
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79 end
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80
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81 local listener = service_info.listener;
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82
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83 local config_prefix = (service_info.config_prefix or service_name).."_";
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84 if config_prefix == "_" then
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85 config_prefix = "";
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86 end
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87
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88 local bind_interfaces = config.get("*", config_prefix.."interfaces")
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89 or config.get("*", config_prefix.."interface") -- COMPAT w/pre-0.9
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90 or (service_info.private and (config.get("*", "local_interfaces") or default_local_interfaces))
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91 or config.get("*", "interfaces")
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92 or config.get("*", "interface") -- COMPAT w/pre-0.9
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93 or listener.default_interface -- COMPAT w/pre0.9
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94 or default_interfaces
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95 bind_interfaces = set.new(type(bind_interfaces)~="table" and {bind_interfaces} or bind_interfaces);
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96
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97 local bind_ports = config.get("*", config_prefix.."ports")
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98 or service_info.default_ports
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99 or {service_info.default_port
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100 or listener.default_port -- COMPAT w/pre-0.9
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101 }
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102 bind_ports = set.new(type(bind_ports) ~= "table" and { bind_ports } or bind_ports );
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103
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104 local mode, ssl = listener.default_mode or "*a";
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105
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106 for interface in bind_interfaces do
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107 for port in bind_ports do
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108 local port_number = tonumber(port);
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109 if not port_number then
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110 log("error", "Invalid port number specified for service '%s': %s", service_info.name, tostring(port));
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111 elseif #active_services:search(nil, interface, port_number) > 0 then
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112 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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113 else
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114 local err;
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115 -- Create SSL context for this service/port
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116 if service_info.encryption == "ssl" then
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117 local ssl_config = config.get("*", config_prefix.."ssl");
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118 ssl, err = certmanager.create_context(service_info.name.." port "..port, "server", ssl_config and (ssl_config[port_number]
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119 or (ssl_config.certificate and ssl_config)));
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120 if not ssl then
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121 log("error", "Error binding encrypted port for %s: %s", service_info.name, error_to_friendly_message(service_name, port_number, err) or "unknown error");
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122 end
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123 end
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124 if not err then
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125 -- Start listening on interface+port
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126 local handler, err = server.addserver(interface, port_number, listener, mode, ssl);
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127 if not handler then
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Matthew Wild <mwild1@gmail.com>
parents: 5392
diff changeset
128 log("error", "Failed to open server port %d on %s, %s", port_number, interface, error_to_friendly_message(service_name, port_number, err));
5009
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
diff changeset
129 else
5399
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Matthew Wild <mwild1@gmail.com>
parents: 5392
diff changeset
130 log("debug", "Added listening service %s to [%s]:%d", service_name, interface, port_number);
13454b2b86bf portmanager: Log error and fail to bind when port is invalid (not a number)
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parents: 5392
diff changeset
131 active_services:add(service_name, interface, port_number, {
5009
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
diff changeset
132 server = handler;
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
diff changeset
133 service = service_info;
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Kim Alvefur <zash@zash.se>
parents: 4902
diff changeset
134 });
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
diff changeset
135 end
4542
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136 end
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Matthew Wild <mwild1@gmail.com>
parents:
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137 end
50aca1e0bfbd portmanager: One manager to, in the darkness, bind them
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
138 end
50aca1e0bfbd portmanager: One manager to, in the darkness, bind them
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
139 end
50aca1e0bfbd portmanager: One manager to, in the darkness, bind them
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
140 log("info", "Activated service '%s'", service_name);
4607
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
141 return true;
4542
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142 end
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Matthew Wild <mwild1@gmail.com>
parents:
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143
4897
1a90e5225b22 portmanager: Fix to deactivate services when they are unregistered (metatable:iter() wins)
Matthew Wild <mwild1@gmail.com>
parents: 4861
diff changeset
144 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
145 for name, interface, port, n, active_service
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Matthew Wild <mwild1@gmail.com>
parents: 4897
diff changeset
146 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
diff changeset
147 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
diff changeset
148 close(interface, port);
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parents: 4897
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149 end
4542
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150 end
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1a90e5225b22 portmanager: Fix to deactivate services when they are unregistered (metatable:iter() wins)
Matthew Wild <mwild1@gmail.com>
parents: 4861
diff changeset
151 log("info", "Deactivated service '%s'", service_name or service_info.name);
4542
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152 end
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parents:
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153
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parents:
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154 function register_service(service_name, service_info)
4607
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
155 table.insert(services[service_name], service_info);
4542
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parents:
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156
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parents: 4598
diff changeset
157 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
158 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
159 local ok, err = activate(service_name);
4607
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Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
160 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
diff changeset
161 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)
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parents: 4598
diff changeset
162 end
4542
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parents:
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163 end
50aca1e0bfbd portmanager: One manager to, in the darkness, bind them
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parents:
diff changeset
164
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parents:
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165 fire_event("service-added", { name = service_name, service = service_info });
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parents:
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166 return true;
50aca1e0bfbd portmanager: One manager to, in the darkness, bind them
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parents:
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167 end
50aca1e0bfbd portmanager: One manager to, in the darkness, bind them
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parents:
diff changeset
168
4607
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Matthew Wild <mwild1@gmail.com>
parents: 4598
diff changeset
169 function unregister_service(service_name, service_info)
4897
1a90e5225b22 portmanager: Fix to deactivate services when they are unregistered (metatable:iter() wins)
Matthew Wild <mwild1@gmail.com>
parents: 4861
diff changeset
170 log("debug", "Unregistering service: %s", service_name);
4607
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
171 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
172 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
diff changeset
173 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
174 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
175 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
176 end
4897
1a90e5225b22 portmanager: Fix to deactivate services when they are unregistered (metatable:iter() wins)
Matthew Wild <mwild1@gmail.com>
parents: 4861
diff changeset
177 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
178 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
179 activate(service_name); -- Re-activate with the next available one
4607
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
180 end
4612
8bb93860fe46 portmanager: Fire service-removed on unregister
Matthew Wild <mwild1@gmail.com>
parents: 4609
diff changeset
181 fire_event("service-removed", { name = service_name, service = service_info });
4607
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
182 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
183
4677
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
184 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
185 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
186 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
187 return false, "port-not-open";
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
188 end
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
189 server:close();
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
190 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
191 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
192 return true;
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
193 end
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
194
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
195 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
196 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
197 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
198 end
05d8b4099cf5 portmanager: Add get_service_at(interface, port) and close(interface, port)
Matthew Wild <mwild1@gmail.com>
parents: 4624
diff changeset
199
4597
25d89c7d6aee portmanager: Add get_service()
Matthew Wild <mwild1@gmail.com>
parents: 4583
diff changeset
200 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
201 return (services[service_name] or {})[1];
4597
25d89c7d6aee portmanager: Add get_service()
Matthew Wild <mwild1@gmail.com>
parents: 4583
diff changeset
202 end
4542
50aca1e0bfbd portmanager: One manager to, in the darkness, bind them
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
203
4598
d2bcb959d713 portmanager: Add get_active_services()
Matthew Wild <mwild1@gmail.com>
parents: 4597
diff changeset
204 function get_active_services(...)
d2bcb959d713 portmanager: Add get_active_services()
Matthew Wild <mwild1@gmail.com>
parents: 4597
diff changeset
205 return active_services;
d2bcb959d713 portmanager: Add get_active_services()
Matthew Wild <mwild1@gmail.com>
parents: 4597
diff changeset
206 end
d2bcb959d713 portmanager: Add get_active_services()
Matthew Wild <mwild1@gmail.com>
parents: 4597
diff changeset
207
4618
1ec8122ddffe portmanager: Add get_registered_services() to the public API
Matthew Wild <mwild1@gmail.com>
parents: 4617
diff changeset
208 function get_registered_services()
1ec8122ddffe portmanager: Add get_registered_services() to the public API
Matthew Wild <mwild1@gmail.com>
parents: 4617
diff changeset
209 return services;
1ec8122ddffe portmanager: Add get_registered_services() to the public API
Matthew Wild <mwild1@gmail.com>
parents: 4617
diff changeset
210 end
1ec8122ddffe portmanager: Add get_registered_services() to the public API
Matthew Wild <mwild1@gmail.com>
parents: 4617
diff changeset
211
4542
50aca1e0bfbd portmanager: One manager to, in the darkness, bind them
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
212 return _M;