Annotate

mod_rest/mod_rest.lua @ 3907:d5ecb9b9cb3b

mod_rest: Update with namespace and name of XEP-0432
author Kim Alvefur <zash@zash.se>
date Tue, 25 Feb 2020 23:33:55 +0100
parent 3887:3d0e8e32453c
child 3909:eb27e51cf2c9
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1 -- RESTful API
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2 --
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3 -- Copyright (c) 2019-2020 Kim Alvefur
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4 --
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5 -- This file is MIT/X11 licensed.
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6
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7 local errors = require "util.error";
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8 local http = require "net.http";
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9 local id = require "util.id";
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10 local jid = require "util.jid";
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11 local json = require "util.json";
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12 local st = require "util.stanza";
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13 local xml = require "util.xml";
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14
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15 local allow_any_source = module:get_host_type() == "component";
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16 local validate_from_addresses = module:get_option_boolean("validate_from_addresses", true);
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17 local secret = assert(module:get_option_string("rest_credentials"), "rest_credentials is a required setting");
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18 local auth_type = assert(secret:match("^%S+"), "Format of rest_credentials MUST be like 'Bearer secret'");
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19 assert(auth_type == "Bearer" or auth_type == "Basic", "Only 'Bearer' and 'Basic' are supported in rest_credentials");
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20
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21 local jsonmap = module:require"jsonmap";
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22 -- Bearer token
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23 local function check_credentials(request)
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24 return request.headers.authorization == secret;
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25 end
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26 if secret == "Basic" and module:get_host_type() == "local" then
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27 local um = require "core.usermanager";
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28 local encodings = require "util.encodings";
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29 local base64 = encodings.base64;
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30
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31 function check_credentials(request)
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32 local creds = string.match(request.headers.authorization, "^Basic%s+([A-Za-z0-9+/]+=?=?)%s*$");
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33 if not creds then return false; end
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34 creds = base64.decode(creds);
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35 if not creds then return false; end
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36 local username, password = string.match(creds, "^([^:]+):(.*)$");
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37 if not username then return false; end
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38 username, password = encodings.stringprep.nodeprep(username), encodings.stringprep.saslprep(password);
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39 if not username then return false; end
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40 if not um.test_password(username, module.host, password) then
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41 return false;
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42 end
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43 return jid.join(username, module.host);
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44 end
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45 end
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46
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47 local function parse(mimetype, data)
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48 mimetype = mimetype and mimetype:match("^[^; ]*");
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49 if mimetype == "application/xmpp+xml" then
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50 return xml.parse(data);
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51 elseif mimetype == "application/json" then
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52 local parsed, err = json.decode(data);
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53 if not parsed then
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54 return parsed, err;
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55 end
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56 return jsonmap.json2st(parsed);
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57 elseif mimetype == "text/plain" then
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58 return st.message({ type = "chat" }, data);
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59 end
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60 return nil, "unknown-payload-type";
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61 end
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62
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63 local supported_types = { "application/xmpp+xml", "application/json" };
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64
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65 local function decide_type(accept)
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66 -- assumes the accept header is sorted
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67 local ret = supported_types[1];
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68 for i = 2, #supported_types do
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69 if (accept:find(supported_types[i], 1, true) or 1000) < (accept:find(ret, 1, true) or 1000) then
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70 ret = supported_types[i];
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71 end
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72 end
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73 return ret;
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74 end
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75
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76 local function encode(type, s)
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77 if type == "application/json" then
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78 return json.encode(jsonmap.st2json(s));
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79 elseif type == "text/plain" then
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80 return s:get_child_text("body") or "";
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81 end
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82 return tostring(s);
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83 end
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84
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85 local function handle_post(event)
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86 local request, response = event.request, event.response;
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87 local from = module.host;
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88 if not request.headers.authorization then
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89 response.headers.www_authenticate = ("%s realm=%q"):format(auth_type, module.host.."/"..module.name);
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90 return 401;
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91 else
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92 local authz = check_credentials(request);
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93 if not authz then
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94 return 401;
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95 end
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96 if type(authz) == "string" then
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97 from = authz;
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98 end
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99 end
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100 local payload, err = parse(request.headers.content_type, request.body);
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101 if not payload then
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102 -- parse fail
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103 return errors.new({ code = 400, text = "Failed to parse payload" }, { error = err, type = request.headers.content_type, data = request.body });
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104 end
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105 if payload.attr.xmlns then
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106 return errors.new({ code = 422, text = "'xmlns' attribute must be empty" });
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107 elseif payload.name ~= "message" and payload.name ~= "presence" and payload.name ~= "iq" then
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108 return errors.new({ code = 422, text = "Invalid stanza, must be 'message', 'presence' or 'iq'." });
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109 end
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110 local to = jid.prep(payload.attr.to);
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111 if not to then
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112 return errors.new({ code = 422, text = "Invalid destination JID" });
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113 end
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114 if allow_any_source and payload.attr.from then
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115 from = jid.prep(payload.attr.from);
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116 if not from then
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117 return errors.new({ code = 422, text = "Invalid source JID" });
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118 end
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119 if validate_from_addresses and not jid.compare(from, module.host) then
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120 return errors.new({ code = 403, text = "Source JID must belong to current host" });
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121 end
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122 end
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123 payload.attr = {
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124 from = from,
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125 to = to,
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126 id = payload.attr.id or id.medium(),
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127 type = payload.attr.type,
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128 ["xml:lang"] = payload.attr["xml:lang"],
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129 };
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130 module:log("debug", "Received[rest]: %s", payload:top_tag());
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131 local send_type = decide_type((request.headers.accept or "") ..",".. request.headers.content_type)
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132 if payload.name == "iq" then
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parents:
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133 if payload.attr.type ~= "get" and payload.attr.type ~= "set" then
3804
d74509cd35fb mod_rest: Use HTTP status 422 for stanza problems
Kim Alvefur <zash@zash.se>
parents: 3803
diff changeset
134 return errors.new({ code = 422, text = "'iq' stanza must be of type 'get' or 'set'" });
3832
0d4146cf9fbc mod_rest: Enforce single child policy for outgoing it stanzas
Kim Alvefur <zash@zash.se>
parents: 3825
diff changeset
135 elseif #payload.tags ~= 1 then
0d4146cf9fbc mod_rest: Enforce single child policy for outgoing it stanzas
Kim Alvefur <zash@zash.se>
parents: 3825
diff changeset
136 return errors.new({ code = 422, text = "'iq' stanza must have exactly one child tag" });
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
137 end
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
138 return module:send_iq(payload):next(
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
139 function (result)
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
140 module:log("debug", "Sending[rest]: %s", result.stanza:top_tag());
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
141 response.headers.content_type = send_type;
3812
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
142 return encode(send_type, result.stanza);
3794
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
143 end,
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
144 function (error)
3879
3b31ff7b4c7c mod_rest: Fix traceback
Kim Alvefur <zash@zash.se>
parents: 3876
diff changeset
145 if error.context and error.context.stanza then
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
146 response.headers.content_type = send_type;
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
147 module:log("debug", "Sending[rest]: %s", error.context.stanza:top_tag());
3812
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
148 return encode(send_type, error.context.stanza);
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
149 else
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
150 return error;
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
151 end
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
152 end);
3805
683b06c0348f mod_rest: Validate stanza kind earlier
Kim Alvefur <zash@zash.se>
parents: 3804
diff changeset
153 else
3796
d1ad10b76b00 mod_rest: Catch one (1) reply to a POST-ed stanza from an internal source
Kim Alvefur <zash@zash.se>
parents: 3795
diff changeset
154 local origin = {};
d1ad10b76b00 mod_rest: Catch one (1) reply to a POST-ed stanza from an internal source
Kim Alvefur <zash@zash.se>
parents: 3795
diff changeset
155 function origin.send(stanza)
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
156 module:log("debug", "Sending[rest]: %s", stanza:top_tag());
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
157 response.headers.content_type = send_type;
3812
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
158 response:send(encode(send_type, stanza));
3796
d1ad10b76b00 mod_rest: Catch one (1) reply to a POST-ed stanza from an internal source
Kim Alvefur <zash@zash.se>
parents: 3795
diff changeset
159 return true;
d1ad10b76b00 mod_rest: Catch one (1) reply to a POST-ed stanza from an internal source
Kim Alvefur <zash@zash.se>
parents: 3795
diff changeset
160 end
3814
0dede5b0ab27 mod_rest: Fix return status when sending and forgetting
Kim Alvefur <zash@zash.se>
parents: 3813
diff changeset
161 module:send(payload, origin);
0dede5b0ab27 mod_rest: Fix return status when sending and forgetting
Kim Alvefur <zash@zash.se>
parents: 3813
diff changeset
162 return 202;
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
163 end
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
164 end
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
165
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
166 -- Handle stanzas submitted via HTTP
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
167 module:depends("http");
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
168 module:provides("http", {
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
169 route = {
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
170 POST = handle_post;
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
171 };
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
172 });
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
173
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
174 -- Forward stanzas from XMPP to HTTP and return any reply
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
175 local rest_url = module:get_option_string("rest_callback_url", nil);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
176 if rest_url then
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
177 local send_type = module:get_option_string("rest_callback_content_type", "application/xmpp+xml");
3813
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
178 if send_type == "json" then
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
179 send_type = "application/json";
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
180 end
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
181
3862
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
182 module:set_status("info", "Not yet connected");
3861
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
183 http.request(rest_url, {
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
184 method = "OPTIONS",
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
185 }, function (body, code, response)
3862
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
186 if code == 0 then
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
187 return module:log_status("error", "Could not connect to callback URL %q: %s", rest_url, body);
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
188 else
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
189 module:set_status("info", "Connected");
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
190 end
3861
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
191 if code == 200 and response.headers.accept then
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
192 send_type = decide_type(response.headers.accept);
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
193 module:log("debug", "Set 'rest_callback_content_type' = %q based on Accept header", send_type);
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
194 end
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
195 end);
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
196
3797
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
197 local code2err = {
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
198 [400] = { condition = "bad-request"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
199 [401] = { condition = "not-authorized"; type = "auth" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
200 [402] = { condition = "not-authorized"; type = "auth" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
201 [403] = { condition = "forbidden"; type = "auth" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
202 [404] = { condition = "item-not-found"; type = "cancel" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
203 [406] = { condition = "not-acceptable"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
204 [408] = { condition = "remote-server-timeout"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
205 [409] = { condition = "conflict"; type = "cancel" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
206 [410] = { condition = "gone"; type = "cancel" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
207 [411] = { condition = "bad-request"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
208 [412] = { condition = "bad-request"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
209 [413] = { condition = "resource-constraint"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
210 [414] = { condition = "resource-constraint"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
211 [415] = { condition = "bad-request"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
212 [429] = { condition = "resource-constraint"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
213 [431] = { condition = "resource-constraint"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
214
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
215 [500] = { condition = "internal-server-error"; type = "cancel" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
216 [501] = { condition = "feature-not-implemented"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
217 [502] = { condition = "remote-server-timeout"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
218 [503] = { condition = "service-unavailable"; type = "cancel" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
219 [504] = { condition = "remote-server-timeout"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
220 [507] = { condition = "resource-constraint"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
221 };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
222
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
223 local function handle_stanza(event)
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
224 local stanza, origin = event.stanza, event.origin;
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
225 local reply_needed = stanza.name == "iq";
3798
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
226 local receipt;
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
227
3824
a0b8ec44a36b mod_rest: Stanzas of type error don't need a reply
Kim Alvefur <zash@zash.se>
parents: 3821
diff changeset
228 if stanza.attr.type == "error" then
a0b8ec44a36b mod_rest: Stanzas of type error don't need a reply
Kim Alvefur <zash@zash.se>
parents: 3821
diff changeset
229 reply_needed = false;
a0b8ec44a36b mod_rest: Stanzas of type error don't need a reply
Kim Alvefur <zash@zash.se>
parents: 3821
diff changeset
230 end
a0b8ec44a36b mod_rest: Stanzas of type error don't need a reply
Kim Alvefur <zash@zash.se>
parents: 3821
diff changeset
231
3798
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
232 if stanza.name == "message" and stanza.attr.id and stanza:get_child("urn:xmpp:receipts", "request") then
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
233 reply_needed = true;
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
234 receipt = st.stanza("received", { xmlns = "urn:xmpp:receipts", id = stanza.id });
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
235 end
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
236
3812
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
237 local request_body = encode(send_type, stanza);
3799
a1f1f703d604 mod_rest: Allow collection of original stanza after sending HTTP request
Kim Alvefur <zash@zash.se>
parents: 3798
diff changeset
238
a1f1f703d604 mod_rest: Allow collection of original stanza after sending HTTP request
Kim Alvefur <zash@zash.se>
parents: 3798
diff changeset
239 -- Keep only the top level element and let the rest be GC'd
a1f1f703d604 mod_rest: Allow collection of original stanza after sending HTTP request
Kim Alvefur <zash@zash.se>
parents: 3798
diff changeset
240 stanza = st.clone(stanza, true);
a1f1f703d604 mod_rest: Allow collection of original stanza after sending HTTP request
Kim Alvefur <zash@zash.se>
parents: 3798
diff changeset
241
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
242 module:log("debug", "Sending[rest]: %s", stanza:top_tag());
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
243 http.request(rest_url, {
3799
a1f1f703d604 mod_rest: Allow collection of original stanza after sending HTTP request
Kim Alvefur <zash@zash.se>
parents: 3798
diff changeset
244 body = request_body,
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
245 headers = {
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
246 ["Content-Type"] = send_type,
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
247 ["Content-Language"] = stanza.attr["xml:lang"],
3813
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
248 Accept = table.concat(supported_types, ", ");
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
249 },
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
250 }, function (body, code, response)
3862
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
251 if code == 0 then
3864
d845475c75f3 mod_rest: Process results even on internal errors with HTTP request
Kim Alvefur <zash@zash.se>
parents: 3862
diff changeset
252 module:log_status("error", "Could not connect to callback URL %q: %s", rest_url, body);
3866
c0df50ce96f0 mod_rest: Handle internal http request errors early and then return
Kim Alvefur <zash@zash.se>
parents: 3865
diff changeset
253 origin.send(st.error_reply(stanza, "wait", "recipient-unavailable", body));
c0df50ce96f0 mod_rest: Handle internal http request errors early and then return
Kim Alvefur <zash@zash.se>
parents: 3865
diff changeset
254 return;
3862
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
255 else
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
256 module:set_status("info", "Connected");
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
257 end
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
258 local reply;
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
259
3867
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
260 if code == 202 or code == 204 then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
261 if not reply_needed then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
262 -- Delivered, no reply
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
263 return;
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
264 end
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
265 else
3867
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
266 local parsed, err = parse(response.headers["content-type"], body);
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
267 if not parsed then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
268 module:log("warn", "Failed parsing data from REST callback: %s, %q", err, body);
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
269 elseif parsed.name ~= stanza.name then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
270 module:log("warn", "REST callback responded with the wrong stanza type, got %s but expected %s", parsed.name, stanza.name);
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
271 else
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
272 parsed.attr = {
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
273 from = stanza.attr.to,
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
274 to = stanza.attr.from,
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
275 id = parsed.attr.id or id.medium();
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
276 type = parsed.attr.type,
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
277 ["xml:lang"] = parsed.attr["xml:lang"],
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
278 };
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
279 if parsed.name == "message" and parsed.attr.type == "groupchat" then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
280 parsed.attr.to = jid.bare(stanza.attr.from);
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
281 end
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
282 if not stanza.attr.type and parsed:get_child("error") then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
283 parsed.attr.type = "error";
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
284 end
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
285 if parsed.attr.type == "error" then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
286 parsed.attr.id = stanza.attr.id;
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
287 elseif parsed.name == "iq" then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
288 parsed.attr.id = stanza.attr.id;
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
289 parsed.attr.type = "result";
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
290 end
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
291 reply = parsed;
3821
11272a3233ce mod_rest: Fix replying to groupchat messages
Kim Alvefur <zash@zash.se>
parents: 3816
diff changeset
292 end
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
293 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
294
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
295 if not reply then
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
296 local code_hundreds = code - (code % 100);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
297 if code_hundreds == 200 then
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
298 reply = st.reply(stanza);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
299 if stanza.name ~= "iq" then
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
300 reply.attr.id = id.medium();
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
301 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
302 -- TODO presence/status=body ?
3797
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
303 elseif code2err[code] then
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
304 reply = st.error_reply(stanza, errors.new(code, nil, code2err));
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
305 elseif code_hundreds == 400 then
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
306 reply = st.error_reply(stanza, "modify", "bad-request", body);
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
307 elseif code_hundreds == 500 then
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
308 reply = st.error_reply(stanza, "cancel", "internal-server-error", body);
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
309 else
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
310 reply = st.error_reply(stanza, "cancel", "undefined-condition", body);
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
311 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
312 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
313
3798
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
314 if receipt then
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
315 reply:add_direct_child(receipt);
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
316 end
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
317
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
318 module:log("debug", "Received[rest]: %s", reply:top_tag());
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
319
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
320 origin.send(reply);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
321 end);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
322
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
323 return true;
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
324 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
325
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
326 if module:get_host_type() == "component" then
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
327 module:hook("iq/bare", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
328 module:hook("message/bare", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
329 module:hook("presence/bare", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
330 module:hook("iq/full", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
331 module:hook("message/full", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
332 module:hook("presence/full", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
333 module:hook("iq/host", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
334 module:hook("message/host", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
335 module:hook("presence/host", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
336 else
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
337 -- Don't override everything on normal VirtualHosts
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
338 module:hook("iq/host", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
339 module:hook("message/host", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
340 module:hook("presence/host", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
341 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
342 end
3842
501c7edc8c37 mod_rest: Encode errors as JSON
Kim Alvefur <zash@zash.se>
parents: 3832
diff changeset
343
3873
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
344 local http_server = require "net.http.server";
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
345 module:hook_object_event(http_server, "http-error", function (event)
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
346 local request, response = event.request, event.response;
3874
505ae524b635 mod_rest: Remove debug hack to ignore Accept header
Kim Alvefur <zash@zash.se>
parents: 3873
diff changeset
347 if decide_type(request and request.headers.accept or "") == "application/json" then
3873
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
348 if response then
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
349 response.headers.content_type = "application/json";
3842
501c7edc8c37 mod_rest: Encode errors as JSON
Kim Alvefur <zash@zash.se>
parents: 3832
diff changeset
350 end
3873
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
351 return json.encode({
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
352 type = "error",
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
353 error = event.error,
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
354 code = event.code,
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
355 });
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
356 end
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
357 end, 10);