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authorMatthew Wild <mwild1@gmail.com>2012-01-22 23:55:48 +0000
committerMatthew Wild <mwild1@gmail.com>2012-01-22 23:55:48 +0000
commit29f37bbccc6d928adc4cf118aebf250974918eab (patch)
treef1fc550146e90d85d851d838aa848dab95ca20e0 /core
parent31c2d43e55f9cee309d9feeaca3ff53ceb66ceef (diff)
downloadprosody-29f37bbccc6d928adc4cf118aebf250974918eab.tar.gz
prosody-29f37bbccc6d928adc4cf118aebf250974918eab.zip
portmanager: One manager to, in the darkness, bind them
Diffstat (limited to 'core')
-rw-r--r--core/portmanager.lua132
1 files changed, 132 insertions, 0 deletions
diff --git a/core/portmanager.lua b/core/portmanager.lua
new file mode 100644
index 00000000..a460cd6a
--- /dev/null
+++ b/core/portmanager.lua
@@ -0,0 +1,132 @@
+
+local multitable = require "util.multitable";
+local fire_event = prosody.events.fire_event;
+
+--- Config
+
+local default_interfaces = { "*" };
+local default_local_interfaces = { "127.0.0.1" };
+if config.get("*", "use_ipv6") then
+ table.insert(default_interfaces, "::");
+ table.insert(default_local_interfaces, "::1");
+end
+
+--- Private state
+
+-- service_name -> service_info
+local services = {};
+
+-- service_name, interface (string), port (number)
+local active_services = multitable.new();
+
+--- Private helpers
+
+local function error_to_friendly_message(service_name, err)
+ local friendly_message = err;
+ if err:match(" in use") then
+ -- FIXME: Use service_name here
+ if port == 5222 or port == 5223 or port == 5269 then
+ friendly_message = "check that Prosody or another XMPP server is "
+ .."not already running and using this port";
+ elseif port == 80 or port == 81 then
+ friendly_message = "check that a HTTP server is not already using "
+ .."this port";
+ elseif port == 5280 then
+ friendly_message = "check that Prosody or a BOSH connection manager "
+ .."is not already running";
+ else
+ friendly_message = "this port is in use by another application";
+ end
+ elseif err:match("permission") then
+ friendly_message = "Prosody does not have sufficient privileges to use this port";
+ elseif err == "no ssl context" then
+ if not config.get("*", "core", "ssl") then
+ friendly_message = "there is no 'ssl' config under Host \"*\" which is "
+ .."require for legacy SSL ports";
+ else
+ friendly_message = "initializing SSL support failed, see previous log entries";
+ end
+ end
+ return friendly_message;
+end
+
+module("portmanager", package.seeall);
+
+--- Public API
+
+function activate_service(service_name)
+ local service_info = services[service_name];
+ if not service_info then
+ return nil, "Unknown service: "..service_name;
+ end
+
+ local bind_interfaces = set.new(config.get("*", service_name.."_interfaces")
+ or config.get("*", service_name.."_interface") -- COMPAT w/pre-0.9
+ or config.get("*", "interfaces")
+ or config.get("*", "interface") -- COMPAT w/pre-0.9
+ or (service_info.private and default_local_interfaces)
+ or service_info.default_interface -- COMPAT w/pre0.9
+ or default_interfaces);
+
+ local bind_ports = set.new(config.get("*", service_name.."_ports")
+ or (service_info.multiplex and config.get("*", "ports"))
+ or service_info.default_ports
+ or {service_info.default_port});
+
+ local listener = service_info.listener;
+ local mode = listener.default_mode or "*a";
+ local ssl;
+ if service_info.encryption == "ssl" then
+ ssl = prosody.global_ssl_ctx;
+ if not ssl then
+ return nil, "global-ssl-context-required";
+ end
+ end
+
+ for interface in bind_interfaces do
+ for port in bind_ports do
+ if not service_info.multiplex and #active_services:search(nil, interface, port) > 0 then
+ log("error", "Multiple services configured to listen on the same port: %s, %s", table.concat(active_services:search(nil, interface, port), ", "), service_name);
+ else
+ local handler, err = server.addserver(interface, port, listener, mode, ssl);
+ if not handler then
+ log("error", "Failed to open server port %d on %s, %s", port, interface, error_to_friendly_message(service_name, err));
+ else
+ log("debug", "Added listening service %s to [%s]:%d", service_name, interface, port);
+ active_services:add(service_name, interface, port, {
+ server = handler;
+ service = service_info;
+ });
+ end
+ end
+ end
+ end
+ log("info", "Activated service '%s'", service_name);
+end
+
+function deactivate(service_name)
+ local active = active_services:search(service_name)[1];
+ if not active then return; end
+ for interface, ports in pairs(active) do
+ for port, active_service in pairs(ports) do
+ active_service:close();
+ active_services:remove(service_name, interface, port, active_service);
+ log("debug", "Removed listening service %s from [%s]:%d", service_name, interface, port);
+ end
+ end
+ log("info", "Deactivated service '%s'", service_name);
+end
+
+function register_service(service_name, service_info)
+ services[service_name] = service_info;
+
+ if not active_services[service_name] then
+ activate_service(service_name);
+ end
+
+ fire_event("service-added", { name = service_name, service = service_info });
+ return true;
+end
+
+
+return _M;