prosody
f5d5fc409680
plugins/mod_http.lua

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plugins/mod_http.lua @ 10965:f5d5fc409680

util.dependencies: Prefer net.unbound over net.adns
author Kim Alvefur <zash@zash.se>
date Thu, 25 Jun 2020 17:41:07 +0200
parent 10923:dff1aebd0f2b
child 11021:9673c95895fb
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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 pcall(function ()
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11 module:depends("http_errors");
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12 end);
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13
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14 local portmanager = require "core.portmanager";
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15 local moduleapi = require "core.moduleapi";
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16 local url_parse = require "socket.url".parse;
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17 local url_build = require "socket.url".build;
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18 local normalize_path = require "util.http".normalize_path;
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19 local set = require "util.set";
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20
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21 local ip_util = require "util.ip";
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22 local new_ip = ip_util.new_ip;
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23 local match_ip = ip_util.match;
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24 local parse_cidr = ip_util.parse_cidr;
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25
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26 local server = require "net.http.server";
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27
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28 server.set_default_host(module:get_option_string("http_default_host"));
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29
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30 server.set_option("body_size_limit", module:get_option_number("http_max_content_size"));
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31 server.set_option("buffer_size_limit", module:get_option_number("http_max_buffer_size"));
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32
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33 -- CORS settigs
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34 local opt_methods = module:get_option_set("access_control_allow_methods", { "GET", "OPTIONS" });
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35 local opt_headers = module:get_option_set("access_control_allow_headers", { "Content-Type" });
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36 local opt_credentials = module:get_option_boolean("access_control_allow_credentials", false);
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37 local opt_max_age = module:get_option_number("access_control_max_age", 2 * 60 * 60);
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38
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39 local function get_http_event(host, app_path, key)
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40 local method, path = key:match("^(%S+)%s+(.+)$");
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41 if not method then -- No path specified, default to "" (base path)
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42 method, path = key, "";
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43 end
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44 if method:sub(1,1) == "/" then
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45 return nil;
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46 end
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47 if app_path == "/" and path:sub(1,1) == "/" then
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48 app_path = "";
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49 end
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50 if host == "*" then
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51 return method:upper().." "..app_path..path;
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52 else
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53 return method:upper().." "..host..app_path..path;
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54 end
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55 end
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56
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57 local function get_base_path(host_module, app_name, default_app_path)
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58 return (normalize_path(host_module:get_option("http_paths", {})[app_name] -- Host
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59 or module:get_option("http_paths", {})[app_name] -- Global
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60 or default_app_path)) -- Default
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61 :gsub("%$(%w+)", { host = host_module.host });
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62 end
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63
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64 local function redir_handler(event)
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65 event.response.headers.location = event.request.path.."/";
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66 if event.request.url.query then
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67 event.response.headers.location = event.response.headers.location .. "?" .. event.request.url.query
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68 end
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69 return 301;
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70 end
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71
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72 local ports_by_scheme = { http = 80, https = 443, };
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73
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74 -- Helper to deduce a module's external URL
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75 function moduleapi.http_url(module, app_name, default_path)
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76 app_name = app_name or (module.name:gsub("^http_", ""));
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77 local external_url = url_parse(module:get_option_string("http_external_url")) or {};
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78 if external_url.scheme and external_url.port == nil then
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79 external_url.port = ports_by_scheme[external_url.scheme];
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80 end
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81 local services = portmanager.get_active_services();
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82 local http_services = services:get("https") or services:get("http") or {};
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83 for interface, ports in pairs(http_services) do -- luacheck: ignore 213/interface
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84 for port, service in pairs(ports) do -- luacheck: ignore 512
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85 local url = {
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86 scheme = (external_url.scheme or service[1].service.name);
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87 host = (external_url.host or module:get_option_string("http_host", module.host));
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88 port = tonumber(external_url.port) or port or 80;
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89 path = normalize_path(external_url.path or "/", true)..
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90 (get_base_path(module, app_name, default_path or "/"..app_name):sub(2));
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91 }
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92 if ports_by_scheme[url.scheme] == url.port then url.port = nil end
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93 return url_build(url);
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94 end
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95 end
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96 module:log("warn", "No http ports enabled, can't generate an external URL");
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97 return "http://disabled.invalid/";
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98 end
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99
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100 local function apply_cors_headers(response, methods, headers, max_age, allow_credentials, origin)
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101 response.headers.access_control_allow_methods = tostring(methods);
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102 response.headers.access_control_allow_headers = tostring(headers);
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103 response.headers.access_control_max_age = tostring(max_age)
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104 response.headers.access_control_allow_origin = origin or "*";
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105 if allow_credentials then
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106 response.headers.access_control_allow_credentials = "true";
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107 end
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108 end
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109
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110 function module.add_host(module)
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111 local host = module.host;
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112 if host ~= "*" then
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113 host = module:get_option_string("http_host", host);
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114 end
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115 local apps = {};
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116 module.environment.apps = apps;
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117 local function http_app_added(event)
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118 local app_name = event.item.name;
4667
d0cfc49f3f2b mod_http: Support for default_path in apps
Matthew Wild <mwild1@gmail.com>
parents: 4664
diff changeset
119 local default_app_path = event.item.default_path or "/"..app_name;
4892
6c8074f47ca4 mod_http: Add module:http_url([app_name,][default_path]) for a module to get a guess at its external URL
Matthew Wild <mwild1@gmail.com>
parents: 4774
diff changeset
120 local app_path = get_base_path(module, app_name, default_app_path);
6c8074f47ca4 mod_http: Add module:http_url([app_name,][default_path]) for a module to get a guess at its external URL
Matthew Wild <mwild1@gmail.com>
parents: 4774
diff changeset
121 if not app_name then
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
122 -- TODO: Link to docs
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
123 module:log("error", "HTTP app has no 'name', add one or use module:provides('http', app)");
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
124 return;
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
125 end
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
126 apps[app_name] = apps[app_name] or {};
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
127 local app_handlers = apps[app_name];
9793
9993fd021d19 mod_http: Solve CORS problems once and for all
Kim Alvefur <zash@zash.se>
parents: 9504
diff changeset
128
9797
071538a567d5 mod_http: Determine CORS methods to whitelist from actual methods used
Kim Alvefur <zash@zash.se>
parents: 9796
diff changeset
129 local app_methods = opt_methods;
071538a567d5 mod_http: Determine CORS methods to whitelist from actual methods used
Kim Alvefur <zash@zash.se>
parents: 9796
diff changeset
130
9793
9993fd021d19 mod_http: Solve CORS problems once and for all
Kim Alvefur <zash@zash.se>
parents: 9504
diff changeset
131 local function cors_handler(event_data)
9993fd021d19 mod_http: Solve CORS problems once and for all
Kim Alvefur <zash@zash.se>
parents: 9504
diff changeset
132 local request, response = event_data.request, event_data.response;
10258
4ff2f14f9ac7 mod_http: Add support for configuring CORS Access-Control-Allow-Credentials
Matthew Wild <mwild1@gmail.com>
parents: 9852
diff changeset
133 apply_cors_headers(response, app_methods, opt_headers, opt_max_age, opt_credentials, request.headers.origin);
9793
9993fd021d19 mod_http: Solve CORS problems once and for all
Kim Alvefur <zash@zash.se>
parents: 9504
diff changeset
134 end
9993fd021d19 mod_http: Solve CORS problems once and for all
Kim Alvefur <zash@zash.se>
parents: 9504
diff changeset
135
9796
adfb29f44412 mod_http: Set up to handle OPTIONS
Kim Alvefur <zash@zash.se>
parents: 9793
diff changeset
136 local function options_handler(event_data)
adfb29f44412 mod_http: Set up to handle OPTIONS
Kim Alvefur <zash@zash.se>
parents: 9793
diff changeset
137 cors_handler(event_data);
adfb29f44412 mod_http: Set up to handle OPTIONS
Kim Alvefur <zash@zash.se>
parents: 9793
diff changeset
138 return "";
adfb29f44412 mod_http: Set up to handle OPTIONS
Kim Alvefur <zash@zash.se>
parents: 9793
diff changeset
139 end
adfb29f44412 mod_http: Set up to handle OPTIONS
Kim Alvefur <zash@zash.se>
parents: 9793
diff changeset
140
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
141 for key, handler in pairs(event.item.route or {}) do
4667
d0cfc49f3f2b mod_http: Support for default_path in apps
Matthew Wild <mwild1@gmail.com>
parents: 4664
diff changeset
142 local event_name = get_http_event(host, app_path, key);
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
143 if event_name then
9797
071538a567d5 mod_http: Determine CORS methods to whitelist from actual methods used
Kim Alvefur <zash@zash.se>
parents: 9796
diff changeset
144 local method = event_name:match("^%S+");
071538a567d5 mod_http: Determine CORS methods to whitelist from actual methods used
Kim Alvefur <zash@zash.se>
parents: 9796
diff changeset
145 if not app_methods:contains(method) then
071538a567d5 mod_http: Determine CORS methods to whitelist from actual methods used
Kim Alvefur <zash@zash.se>
parents: 9796
diff changeset
146 app_methods = app_methods + set.new{ method };
071538a567d5 mod_http: Determine CORS methods to whitelist from actual methods used
Kim Alvefur <zash@zash.se>
parents: 9796
diff changeset
147 end
9796
adfb29f44412 mod_http: Set up to handle OPTIONS
Kim Alvefur <zash@zash.se>
parents: 9793
diff changeset
148 local options_event_name = event_name:gsub("^%S+", "OPTIONS");
4724
a8c234332258 mod_http: Allow a route value to be static data rather than a handler function
Matthew Wild <mwild1@gmail.com>
parents: 4721
diff changeset
149 if type(handler) ~= "function" then
a8c234332258 mod_http: Allow a route value to be static data rather than a handler function
Matthew Wild <mwild1@gmail.com>
parents: 4721
diff changeset
150 local data = handler;
a8c234332258 mod_http: Allow a route value to be static data rather than a handler function
Matthew Wild <mwild1@gmail.com>
parents: 4721
diff changeset
151 handler = function () return data; end
a8c234332258 mod_http: Allow a route value to be static data rather than a handler function
Matthew Wild <mwild1@gmail.com>
parents: 4721
diff changeset
152 elseif event_name:sub(-2, -1) == "/*" then
5230
6f5640375358 mod_http: Fix path length pattern
Kim Alvefur <zash@zash.se>
parents: 5204
diff changeset
153 local base_path_len = #event_name:match("/.+$");
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
154 local _handler = handler;
8972
0b254439d451 mod_http: Rename argument to avoid name clash with outer scope [luacheck]
Kim Alvefur <zash@zash.se>
parents: 8971
diff changeset
155 handler = function (_event)
0b254439d451 mod_http: Rename argument to avoid name clash with outer scope [luacheck]
Kim Alvefur <zash@zash.se>
parents: 8971
diff changeset
156 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
157 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
158 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
159 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
160 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
161 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
162 end
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
163 if not app_handlers[event_name] then
10315
d4c538a7d655 mod_http: Unhook CORS related event handlers
Kim Alvefur <zash@zash.se>
parents: 10258
diff changeset
164 app_handlers[event_name] = {
d4c538a7d655 mod_http: Unhook CORS related event handlers
Kim Alvefur <zash@zash.se>
parents: 10258
diff changeset
165 main = handler;
d4c538a7d655 mod_http: Unhook CORS related event handlers
Kim Alvefur <zash@zash.se>
parents: 10258
diff changeset
166 cors = cors_handler;
d4c538a7d655 mod_http: Unhook CORS related event handlers
Kim Alvefur <zash@zash.se>
parents: 10258
diff changeset
167 options = options_handler;
d4c538a7d655 mod_http: Unhook CORS related event handlers
Kim Alvefur <zash@zash.se>
parents: 10258
diff changeset
168 };
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
169 module:hook_object_event(server, event_name, handler);
9793
9993fd021d19 mod_http: Solve CORS problems once and for all
Kim Alvefur <zash@zash.se>
parents: 9504
diff changeset
170 module:hook_object_event(server, event_name, cors_handler, 1);
9796
adfb29f44412 mod_http: Set up to handle OPTIONS
Kim Alvefur <zash@zash.se>
parents: 9793
diff changeset
171 module:hook_object_event(server, options_event_name, options_handler, -1);
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
172 else
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
173 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
174 end
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
175 else
7359
a5a080c12c96 Update every link to the documentation to use HTTPS
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 7247
diff changeset
176 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
diff changeset
177 end
4635
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
178 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
179 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
180 if services:get("https") or services:get("http") then
10460
5ce6cbb5ce6a mod_http: Log served URLs at 'info' level
Kim Alvefur <zash@zash.se>
parents: 10409
diff changeset
181 module:log("info", "Serving '%s' at %s", app_name, module:http_url(app_name, app_path));
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
182 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
183 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
184 end
4635
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
185 end
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5427
diff changeset
186
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
187 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
188 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
189 apps[event.item.name] = nil;
10315
d4c538a7d655 mod_http: Unhook CORS related event handlers
Kim Alvefur <zash@zash.se>
parents: 10258
diff changeset
190 for event_name, handlers in pairs(app_handlers) do
d4c538a7d655 mod_http: Unhook CORS related event handlers
Kim Alvefur <zash@zash.se>
parents: 10258
diff changeset
191 module:unhook_object_event(server, event_name, handlers.main);
d4c538a7d655 mod_http: Unhook CORS related event handlers
Kim Alvefur <zash@zash.se>
parents: 10258
diff changeset
192 module:unhook_object_event(server, event_name, handlers.cors);
d4c538a7d655 mod_http: Unhook CORS related event handlers
Kim Alvefur <zash@zash.se>
parents: 10258
diff changeset
193 local options_event_name = event_name:gsub("^%S+", "OPTIONS");
d4c538a7d655 mod_http: Unhook CORS related event handlers
Kim Alvefur <zash@zash.se>
parents: 10258
diff changeset
194 module:unhook_object_event(server, options_event_name, handlers.options);
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
195 end
4636
41983ec223f0 mod_http: Include handlers of non-global modules.
Waqas Hussain <waqas20@gmail.com>
parents: 4635
diff changeset
196 end
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5427
diff changeset
197
4664
7438b3c68576 mod_http: Revamp module for new API and config
Matthew Wild <mwild1@gmail.com>
parents: 4636
diff changeset
198 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
199
9376
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
200 if host ~= "*" then
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
201 server.add_host(host);
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
202 function module.unload()
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
203 server.remove_host(host);
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
204 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
205 end
4635
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
206 end
ea5215bd2783 mod_http: Provide HTTP service.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
207
9376
220468f7a103 mod_http: Support global HTTP modules
Kim Alvefur <zash@zash.se>
parents: 9338
diff changeset
208 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
209
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
210 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
211
10923
dff1aebd0f2b mod_http: Support CIDR for trusted proxies.
Boris Grozev <boris@jitsi.org>
parents: 10841
diff changeset
212 local function is_trusted_proxy(ip)
dff1aebd0f2b mod_http: Support CIDR for trusted proxies.
Boris Grozev <boris@jitsi.org>
parents: 10841
diff changeset
213 local parsed_ip = new_ip(ip)
dff1aebd0f2b mod_http: Support CIDR for trusted proxies.
Boris Grozev <boris@jitsi.org>
parents: 10841
diff changeset
214 for trusted_proxy in trusted_proxies do
dff1aebd0f2b mod_http: Support CIDR for trusted proxies.
Boris Grozev <boris@jitsi.org>
parents: 10841
diff changeset
215 if match_ip(parsed_ip, parse_cidr(trusted_proxy)) then
dff1aebd0f2b mod_http: Support CIDR for trusted proxies.
Boris Grozev <boris@jitsi.org>
parents: 10841
diff changeset
216 return true;
dff1aebd0f2b mod_http: Support CIDR for trusted proxies.
Boris Grozev <boris@jitsi.org>
parents: 10841
diff changeset
217 end
dff1aebd0f2b mod_http: Support CIDR for trusted proxies.
Boris Grozev <boris@jitsi.org>
parents: 10841
diff changeset
218 end
dff1aebd0f2b mod_http: Support CIDR for trusted proxies.
Boris Grozev <boris@jitsi.org>
parents: 10841
diff changeset
219 return false
dff1aebd0f2b mod_http: Support CIDR for trusted proxies.
Boris Grozev <boris@jitsi.org>
parents: 10841
diff changeset
220 end
dff1aebd0f2b mod_http: Support CIDR for trusted proxies.
Boris Grozev <boris@jitsi.org>
parents: 10841
diff changeset
221
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
222 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
223 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
224 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
225 if forwarded_for then
10841
22f783d80eec mod_http: Tell luacheck to ignore the long comment lines
Kim Alvefur <zash@zash.se>
parents: 10840
diff changeset
226 -- luacheck: ignore 631
10840
a83bfb266b15 mod_http: Add documentation to the non-obvious logic of get_ip_from_request
Jonas Schäfer <jonas@wielicki.name>
parents: 10465
diff changeset
227 -- This logic looks weird at first, but it makes sense.
a83bfb266b15 mod_http: Add documentation to the non-obvious logic of get_ip_from_request
Jonas Schäfer <jonas@wielicki.name>
parents: 10465
diff changeset
228 -- The for loop will take the last non-trusted-proxy IP from `forwarded_for`.
a83bfb266b15 mod_http: Add documentation to the non-obvious logic of get_ip_from_request
Jonas Schäfer <jonas@wielicki.name>
parents: 10465
diff changeset
229 -- We append the original request IP to the header. Then, since the last IP wins, there are two cases:
a83bfb266b15 mod_http: Add documentation to the non-obvious logic of get_ip_from_request
Jonas Schäfer <jonas@wielicki.name>
parents: 10465
diff changeset
230 -- Case a) The original request IP is *not* in trusted proxies, in which case the X-Forwarded-For header will, effectively, be ineffective; the original request IP will win because it overrides any other IP in the header.
a83bfb266b15 mod_http: Add documentation to the non-obvious logic of get_ip_from_request
Jonas Schäfer <jonas@wielicki.name>
parents: 10465
diff changeset
231 -- Case b) The original request IP is in trusted proxies. In that case, the if branch in the for loop will skip the last IP, causing it to be ignored. The second-to-last IP will be taken instead.
a83bfb266b15 mod_http: Add documentation to the non-obvious logic of get_ip_from_request
Jonas Schäfer <jonas@wielicki.name>
parents: 10465
diff changeset
232 -- Case c) If the second-to-last IP is also a trusted proxy, it will also be ignored, iteratively, up to the last IP which isn’t in trusted proxies.
a83bfb266b15 mod_http: Add documentation to the non-obvious logic of get_ip_from_request
Jonas Schäfer <jonas@wielicki.name>
parents: 10465
diff changeset
233 -- Case d) If all IPs are in trusted proxies, something went obviously wrong and the logic never overwrites `ip`, leaving it at the original request IP.
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
234 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
235 for forwarded_ip in forwarded_for:gmatch("[^%s,]+") do
10923
dff1aebd0f2b mod_http: Support CIDR for trusted proxies.
Boris Grozev <boris@jitsi.org>
parents: 10841
diff changeset
236 if not is_trusted_proxy(forwarded_ip) then
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
237 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
238 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
239 end
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240 end
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241 return ip;
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242 end
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243
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244 module:wrap_object_event(server._events, false, function (handlers, event_name, event_data)
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245 local request = event_data.request;
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246 if request then
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247 -- Not included in eg http-error events
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248 request.ip = get_ip_from_request(request);
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249 end
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250 return handlers(event_name, event_data);
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251 end);
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252
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bcabea740c00 mod_{admin_telnet,c2s,component,http,net_multiplex,s2s}: Use module:provides() instead of module:add_item().
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253 module:provides("net", {
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254 name = "http";
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255 listener = server.listener;
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256 default_port = 5280;
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257 multiplex = {
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258 pattern = "^[A-Z]";
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259 };
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260 });
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261
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262 module:provides("net", {
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263 name = "https";
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264 listener = server.listener;
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265 default_port = 5281;
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266 encryption = "ssl";
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267 multiplex = {
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09697a673015 mod_net_multiplex: Add support for using ALPN
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268 protocol = "http/1.1";
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269 pattern = "^[A-Z]";
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270 };
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271 });