prosody
4700e318add1
plugins/mod_http.lua

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plugins/mod_http.lua @ 4696:4700e318add1

mod_http: Use module:hook/unhook_event_object() so that handlers get unregistered if mod_http is unloaded
author Matthew Wild <mwild1@gmail.com>
date Thu, 26 Apr 2012 05:40:04 +0100
parent 4678:9613673f916a
child 4702:5a85e541de1a
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2012 Matthew Wild
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3 -- Copyright (C) 2008-2012 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 module:set_global();
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10
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11 local parse_url = require "socket.url".parse;
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12 local server = require "net.http.server";
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13
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14 local function normalize_path(path)
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15 if path:sub(1,1) ~= "/" then path = "/"..path; end
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16 if path:sub(-1,-1) == "/" then path = path:sub(1, -2); end
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17 return path;
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18 end
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19
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20 local function get_http_event(host, app_path, key)
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21 local method, path = key:match("^(%S+)%s+(.+)$");
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22 if not method then
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23 if key:sub(1,1) ~= "/" then
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24 return nil;
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25 end
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26 method, path = "GET", key;
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27 end
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28 path = normalize_path(path);
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29 return method:upper().." "..host..app_path..path;
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30 end
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31
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32 function module.add_host(module)
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33 local host = module.host;
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34 local apps = {};
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35 module.environment.apps = apps;
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36 local function http_app_added(event)
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37 local app_name = event.item.name;
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38 local default_app_path = event.item.default_path or "/"..app_name;
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39 local app_path = normalize_path(module:get_option_string(app_name.."_http_path", default_app_path));
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40 if not app_name then
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41 -- TODO: Link to docs
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42 module:log("error", "HTTP app has no 'name', add one or use module:provides('http', app)");
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43 return;
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44 end
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45 apps[app_name] = apps[app_name] or {};
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46 local app_handlers = apps[app_name];
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47 for key, handler in pairs(event.item.route or {}) do
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48 local event_name = get_http_event(host, app_path, key);
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49 if event_name then
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50 if event_name:sub(-2, -1) == "/*" then
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51 local base_path = event_name:match("/(.+)/*$");
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52 local _handler = handler;
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53 handler = function (event)
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54 local path = event.request.path:sub(#base_path+1);
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55 return _handler(event, path);
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56 end;
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57 end
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58 if not app_handlers[event_name] then
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59 app_handlers[event_name] = handler;
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60 module:hook_object_event(server, event_name, handler);
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61 else
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62 module:log("warn", "App %s added handler twice for '%s', ignoring", app_name, event_name);
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63 end
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64 else
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65 module:log("error", "Invalid route in %s: %q", app_name, key);
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66 end
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67 end
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68 end
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69
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70 local function http_app_removed(event)
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71 local app_handlers = apps[event.item.name];
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72 apps[event.item.name] = nil;
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73 for event, handler in pairs(app_handlers) do
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74 module:unhook_object_event(server, event, handler);
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75 end
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76 end
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77
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78 module:handle_items("http-provider", http_app_added, http_app_removed);
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79 end
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80
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81 module:add_item("net-provider", {
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82 name = "http";
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83 listener = server.listener;
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84 default_port = 5280;
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85 multiplex = {
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86 pattern = "^[A-Z]";
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87 };
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88 });
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89
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90 module:add_item("net-provider", {
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91 name = "https";
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92 listener = server.listener;
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93 default_port = 5281;
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94 encryption = "ssl";
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95 multiplex = {
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96 pattern = "^[A-Z]";
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97 };
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98 });