prosody
220468f7a103
plugins/mod_http.lua

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plugins/mod_http.lua @ 9376:220468f7a103

mod_http: Support global HTTP modules Such modules simply ignore the Host header and always handle the same path.
author Kim Alvefur <zash@zash.se>
date Fri, 21 Sep 2018 23:49:56 +0200
parent 9338:9beb767295d4
child 9503:3456496d5218
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 module:depends("http_errors");
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11
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12 local portmanager = require "core.portmanager";
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13 local moduleapi = require "core.moduleapi";
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14 local url_parse = require "socket.url".parse;
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15 local url_build = require "socket.url".build;
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16
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17 local server = require "net.http.server";
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18
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19 server.set_default_host(module:get_option_string("http_default_host"));
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21 server.set_option("body_size_limit", module:get_option_number("http_max_content_size"));
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22 server.set_option("buffer_size_limit", module:get_option_number("http_max_buffer_size"));
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23
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24 local function normalize_path(path)
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25 if path:sub(-1,-1) == "/" then path = path:sub(1, -2); end
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26 if path:sub(1,1) ~= "/" then path = "/"..path; end
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27 return path;
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28 end
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29
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30 local function get_http_event(host, app_path, key)
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31 local method, path = key:match("^(%S+)%s+(.+)$");
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32 if not method then -- No path specified, default to "" (base path)
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33 method, path = key, "";
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34 end
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35 if method:sub(1,1) == "/" then
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36 return nil;
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37 end
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38 if app_path == "/" and path:sub(1,1) == "/" then
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39 app_path = "";
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40 end
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41 if host == "*" then
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42 return method:upper().." "..app_path..path;
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43 else
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44 return method:upper().." "..host..app_path..path;
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45 end
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46 end
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47
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48 local function get_base_path(host_module, app_name, default_app_path)
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49 return (normalize_path(host_module:get_option("http_paths", {})[app_name] -- Host
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50 or module:get_option("http_paths", {})[app_name] -- Global
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51 or default_app_path)) -- Default
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52 :gsub("%$(%w+)", { host = host_module.host });
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53 end
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54
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55 local function redir_handler(event)
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56 event.response.headers.location = event.request.path.."/";
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57 if event.request.url.query then
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58 event.response.headers.location = event.response.headers.location .. "?" .. event.request.url.query
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59 end
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60 return 301;
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61 end
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62
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63 local ports_by_scheme = { http = 80, https = 443, };
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64
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65 -- Helper to deduce a module's external URL
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66 function moduleapi.http_url(module, app_name, default_path)
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67 app_name = app_name or (module.name:gsub("^http_", ""));
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68 local external_url = url_parse(module:get_option_string("http_external_url")) or {};
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69 if external_url.scheme and external_url.port == nil then
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70 external_url.port = ports_by_scheme[external_url.scheme];
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71 end
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72 local services = portmanager.get_active_services();
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73 local http_services = services:get("https") or services:get("http") or {};
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74 for interface, ports in pairs(http_services) do -- luacheck: ignore 213/interface
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75 for port, service in pairs(ports) do -- luacheck: ignore 512
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76 local url = {
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77 scheme = (external_url.scheme or service[1].service.name);
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78 host = (external_url.host or module:get_option_string("http_host", module.host));
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79 port = tonumber(external_url.port) or port or 80;
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80 path = normalize_path(external_url.path or "/")..
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81 (get_base_path(module, app_name, default_path or "/"..app_name):sub(2));
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82 }
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83 if ports_by_scheme[url.scheme] == url.port then url.port = nil end
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84 return url_build(url);
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85 end
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86 end
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87 module:log("warn", "No http ports enabled, can't generate an external URL");
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88 return "http://disabled.invalid/";
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89 end
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90
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91 function module.add_host(module)
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92 local host = module.host;
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93 if host ~= "*" then
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94 host = module:get_option_string("http_host", host);
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95 end
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96 local apps = {};
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97 module.environment.apps = apps;
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98 local function http_app_added(event)
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99 local app_name = event.item.name;
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100 local default_app_path = event.item.default_path or "/"..app_name;
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101 local app_path = get_base_path(module, app_name, default_app_path);
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102 if not app_name then
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103 -- TODO: Link to docs
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104 module:log("error", "HTTP app has no 'name', add one or use module:provides('http', app)");
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105 return;
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106 end
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107 apps[app_name] = apps[app_name] or {};
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108 local app_handlers = apps[app_name];
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109 for key, handler in pairs(event.item.route or {}) do
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110 local event_name = get_http_event(host, app_path, key);
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111 if event_name then
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112 if type(handler) ~= "function" then
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113 local data = handler;
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114 handler = function () return data; end
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115 elseif event_name:sub(-2, -1) == "/*" then
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116 local base_path_len = #event_name:match("/.+$");
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117 local _handler = handler;
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118 handler = function (_event)
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119 local path = _event.request.path:sub(base_path_len);
0b254439d451 mod_http: Rename argument to avoid name clash with outer scope [luacheck]
Kim Alvefur <zash@zash.se>
parents: 8971
diff changeset
120 return _handler(_event, path);
4669
0e0a72679f77 mod_http: Pass portion of path that matched wildcard to wildcard handlers, as a second parameter
Matthew Wild <mwild1@gmail.com>
parents: 4667
diff changeset
121 end;
6504
e1659f32852e mod_http: For URLs that end with / or wildcard handlers, add a low-priority redirect from without to with slash
Kim Alvefur <zash@zash.se>
parents: 6086
diff changeset
122 module:hook_object_event(server, event_name:sub(1, -3), redir_handler, -1);
e1659f32852e mod_http: For URLs that end with / or wildcard handlers, add a low-priority redirect from without to with slash
Kim Alvefur <zash@zash.se>
parents: 6086
diff changeset
123 elseif event_name:sub(-1, -1) == "/" then
e1659f32852e mod_http: For URLs that end with / or wildcard handlers, add a low-priority redirect from without to with slash
Kim Alvefur <zash@zash.se>
parents: 6086
diff changeset
124 module:hook_object_event(server, event_name:sub(1, -2), redir_handler, -1);
4669
0e0a72679f77 mod_http: Pass portion of path that matched wildcard to wildcard handlers, as a second parameter
Matthew Wild <mwild1@gmail.com>
parents: 4667
diff changeset
125 end
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
126 if not app_handlers[event_name] then
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diff changeset
127 app_handlers[event_name] = handler;
4696
4700e318add1 mod_http: Use module:hook/unhook_event_object() so that handlers get unregistered if mod_http is unloaded
Matthew Wild <mwild1@gmail.com>
parents: 4678
diff changeset
128 module:hook_object_event(server, event_name, handler);
4664
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diff changeset
129 else
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parents: 4636
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130 module:log("warn", "App %s added handler twice for '%s', ignoring", app_name, event_name);
4636
41983ec223f0 mod_http: Include handlers of non-global modules.
Waqas Hussain <waqas20@gmail.com>
parents: 4635
diff changeset
131 end
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
132 else
7359
a5a080c12c96 Update every link to the documentation to use HTTPS
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 7247
diff changeset
133 module:log("error", "Invalid route in %s, %q. See https://prosody.im/doc/developers/http#routes", app_name, key);
4636
41983ec223f0 mod_http: Include handlers of non-global modules.
Waqas Hussain <waqas20@gmail.com>
parents: 4635
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134 end
4635
ea5215bd2783 mod_http: Provide HTTP service.
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parents:
diff changeset
135 end
6597
321321f566fb mod_http: Log a debug message when adding new http apps and warn if no http ports are enabled
Kim Alvefur <zash@zash.se>
parents: 6596
diff changeset
136 local services = portmanager.get_active_services();
321321f566fb mod_http: Log a debug message when adding new http apps and warn if no http ports are enabled
Kim Alvefur <zash@zash.se>
parents: 6596
diff changeset
137 if services:get("https") or services:get("http") then
321321f566fb mod_http: Log a debug message when adding new http apps and warn if no http ports are enabled
Kim Alvefur <zash@zash.se>
parents: 6596
diff changeset
138 module:log("debug", "Serving '%s' at %s", app_name, module:http_url(app_name, app_path));
321321f566fb mod_http: Log a debug message when adding new http apps and warn if no http ports are enabled
Kim Alvefur <zash@zash.se>
parents: 6596
diff changeset
139 else
321321f566fb mod_http: Log a debug message when adding new http apps and warn if no http ports are enabled
Kim Alvefur <zash@zash.se>
parents: 6596
diff changeset
140 module:log("warn", "Not listening on any ports, '%s' will be unreachable", app_name);
321321f566fb mod_http: Log a debug message when adding new http apps and warn if no http ports are enabled
Kim Alvefur <zash@zash.se>
parents: 6596
diff changeset
141 end
4635
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
142 end
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5427
diff changeset
143
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
144 local function http_app_removed(event)
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
145 local app_handlers = apps[event.item.name];
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
146 apps[event.item.name] = nil;
8971
e59207c909c0 mod_http: Rename loop variable to avoid name clash [luacheck]
Kim Alvefur <zash@zash.se>
parents: 8970
diff changeset
147 for event_name, handler in pairs(app_handlers) do
e59207c909c0 mod_http: Rename loop variable to avoid name clash [luacheck]
Kim Alvefur <zash@zash.se>
parents: 8970
diff changeset
148 module:unhook_object_event(server, event_name, handler);
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
149 end
4636
41983ec223f0 mod_http: Include handlers of non-global modules.
Waqas Hussain <waqas20@gmail.com>
parents: 4635
diff changeset
150 end
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5427
diff changeset
151
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
152 module:handle_items("http-provider", http_app_added, http_app_removed);
4736
3514338c59c3 net.http.server, mod_http: Support http_default_host config option to specify where to direct requests for unknown HTTP vhosts
Matthew Wild <mwild1@gmail.com>
parents: 4724
diff changeset
153
9376
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
154 if host ~= "*" then
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
155 server.add_host(host);
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
156 function module.unload()
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
157 server.remove_host(host);
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
158 end
4736
3514338c59c3 net.http.server, mod_http: Support http_default_host config option to specify where to direct requests for unknown HTTP vhosts
Matthew Wild <mwild1@gmail.com>
parents: 4724
diff changeset
159 end
4635
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
160 end
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
161
9376
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
162 module.add_host(module); -- set up handling on global context too
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
163
8594
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
164 local trusted_proxies = module:get_option_set("trusted_proxies", { "127.0.0.1", "::1" })._items;
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
165
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
166 local function get_ip_from_request(request)
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
167 local ip = request.conn:ip();
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
168 local forwarded_for = request.headers.x_forwarded_for;
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
169 if forwarded_for then
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
170 forwarded_for = forwarded_for..", "..ip;
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
171 for forwarded_ip in forwarded_for:gmatch("[^%s,]+") do
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
172 if not trusted_proxies[forwarded_ip] then
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
173 ip = forwarded_ip;
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
174 end
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
175 end
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
176 end
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
177 return ip;
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
178 end
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
179
8596
71da54c7f797 mod_http: Pass util.events object to API, fixes traceback
Kim Alvefur <zash@zash.se>
parents: 8594
diff changeset
180 module:wrap_object_event(server._events, false, function (handlers, event_name, event_data)
8594
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
181 local request = event_data.request;
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
182 if request then
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
183 -- Not included in eg http-error events
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
184 request.ip = get_ip_from_request(request);
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
185 end
9338
9beb767295d4 Revert 2dc7490899ae::5d6b252bc36f: Unfinished and broken
Kim Alvefur <zash@zash.se>
parents: 9336
diff changeset
186 return handlers(event_name, event_data);
8594
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
187 end);
b4a0bc46c82d mod_http: Set request.ip on all HTTP requests (moves code out of mod_bosh) (fixes #540)
Kim Alvefur <zash@zash.se>
parents: 7868
diff changeset
188
5120
bcabea740c00 mod_{admin_telnet,c2s,component,http,net_multiplex,s2s}: Use module:provides() instead of module:add_item().
Waqas Hussain <waqas20@gmail.com>
parents: 5093
diff changeset
189 module:provides("net", {
4635
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
190 name = "http";
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
191 listener = server.listener;
4635
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
192 default_port = 5280;
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
193 multiplex = {
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
194 pattern = "^[A-Z]";
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
195 };
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
196 });
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
197
5120
bcabea740c00 mod_{admin_telnet,c2s,component,http,net_multiplex,s2s}: Use module:provides() instead of module:add_item().
Waqas Hussain <waqas20@gmail.com>
parents: 5093
diff changeset
198 module:provides("net", {
4635
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
199 name = "https";
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
200 listener = server.listener;
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
201 default_port = 5281;
4635
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
202 encryption = "ssl";
6086
3b4fde51fa25 mod_http: Update to disable peer verification with the new certmanager
Kim Alvefur <zash@zash.se>
parents: 6027
diff changeset
203 ssl_config = {
7867
194f540e13e2 util.sslconfig: Remvoe flag merging for 'verify' as this is more of a tri-state field than a set of options
Kim Alvefur <zash@zash.se>
parents: 7581
diff changeset
204 verify = "none";
6086
3b4fde51fa25 mod_http: Update to disable peer verification with the new certmanager
Kim Alvefur <zash@zash.se>
parents: 6027
diff changeset
205 };
4635
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
206 multiplex = {
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
207 pattern = "^[A-Z]";
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
208 };
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
209 });