Annotate

mod_rest/mod_rest.lua @ 4478:7ab0c423688a

mod_rest: Support GET for certain IQ queries Example: GET /rest/version/example.com 200 OK { version: { name: "thing", version: "1.0.0" } }
author Kim Alvefur <zash@zash.se>
date Sun, 28 Feb 2021 19:33:09 +0100
parent 4477:8df6cc648963
child 4480:dad0367d33e8
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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 encodings = require "util.encodings";
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8 local base64 = encodings.base64;
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9 local errors = require "util.error";
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10 local http = require "net.http";
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11 local id = require "util.id";
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12 local jid = require "util.jid";
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13 local json = require "util.json";
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14 local st = require "util.stanza";
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15 local um = require "core.usermanager";
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16 local xml = require "util.xml";
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17 local have_cbor, cbor = pcall(require, "cbor");
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18
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19 local jsonmap = module:require"jsonmap";
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20
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21 local tokens = module:depends("tokenauth");
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22
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23 local auth_mechanisms = module:get_option_set("rest_auth_mechanisms", { "Basic", "Bearer" });
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24
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25 local www_authenticate_header;
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26 do
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27 local header, realm = {}, module.host.."/"..module.name;
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28 for mech in auth_mechanisms do
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29 header[#header+1] = ("%s realm=%q"):format(mech, realm);
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30 end
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31 www_authenticate_header = table.concat(header, ", ");
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32 end
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33
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34 -- Bearer token
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35 local function check_credentials(request)
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36 local auth_type, auth_data = string.match(request.headers.authorization, "^(%S+)%s(.+)$");
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37 if not (auth_type and auth_data) or not auth_mechanisms:contains(auth_type) then
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38 return false;
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39 end
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40
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41 if auth_type == "Basic" then
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42 local creds = base64.decode(auth_data);
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43 if not creds then return false; end
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44 local username, password = string.match(creds, "^([^:]+):(.*)$");
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45 if not username then return false; end
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46 username, password = encodings.stringprep.nodeprep(username), encodings.stringprep.saslprep(password);
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47 if not username then return false; end
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48 if not um.test_password(username, module.host, password) then
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49 return false;
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50 end
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51 return { username = username, host = module.host };
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52 elseif auth_type == "Bearer" then
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53 local token_info = tokens.get_token_info(auth_data);
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54 if not token_info or not token_info.session then
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55 return false;
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56 end
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57 return token_info.session;
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58 end
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59 return nil;
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60 end
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61
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62 -- (table, string) -> table
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63 local function amend_from_path(data, path)
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64 local st_kind, st_type, st_to = path:match("^([mpi]%w+)/(%w+)/(.*)$");
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65 if not st_kind then return; end
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66 if st_kind == "iq" and st_type ~= "get" and st_type ~= "set" then
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67 -- GET /iq/disco/jid
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68 data = {
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69 kind = "iq";
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70 type = "get";
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71 [st_type] = data;
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72 }
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73 else
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74 data.kind = st_kind;
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75 data.type = st_type;
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76 end
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77 if st_to and st_to ~= "" then
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78 data.to = st_to;
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79 end
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80 return data;
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81 end
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82
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83 local function parse(mimetype, data, path) --> Stanza, error enum
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84 mimetype = mimetype and mimetype:match("^[^; ]*");
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85 if mimetype == "application/xmpp+xml" then
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86 return xml.parse(data);
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87 elseif mimetype == "application/json" then
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88 local parsed, err = json.decode(data);
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89 if not parsed then
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90 return parsed, err;
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91 end
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92 if path and not amend_from_path(parsed, path) then return nil, "invalid-path"; end
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93 return jsonmap.json2st(parsed);
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94 elseif mimetype == "application/cbor" and have_cbor then
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95 local parsed, err = cbor.decode(data);
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96 if not parsed then
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97 return parsed, err;
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98 end
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99 return jsonmap.json2st(parsed);
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100 elseif mimetype == "application/x-www-form-urlencoded"then
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101 local parsed = http.formdecode(data);
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102 if type(parsed) == "string" then
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103 return parse("text/plain", parsed);
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104 end
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105 for i = #parsed, 1, -1 do
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106 parsed[i] = nil;
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107 end
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108 if path and not amend_from_path(parsed, path) then return nil, "invalid-path"; end
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109 return jsonmap.json2st(parsed);
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110 elseif mimetype == "text/plain" then
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111 if not path then
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112 return st.message({ type = "chat" }, data);
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113 end
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114 local parsed = {};
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115 if not amend_from_path(parsed, path) then return nil, "invalid-path"; end
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116 if parsed.kind == "message" then
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117 parsed.body = data;
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118 elseif parsed.kind == "presence" then
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119 parsed.show = data;
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120 else
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121 return nil, "invalid-path";
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122 end
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123 return jsonmap.json2st(parsed);
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124 elseif not mimetype and path then
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125 local parsed = amend_from_path({}, path);
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126 if not parsed then return nil, "invalid-path"; end
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127 return jsonmap.json2st(parsed);
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128 end
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129 return nil, "unknown-payload-type";
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130 end
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131
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132 local function decide_type(accept, supported_types)
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133 -- assumes the accept header is sorted
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134 local ret = supported_types[1];
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
135 for i = 2, #supported_types do
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
136 if (accept:find(supported_types[i], 1, true) or 1000) < (accept:find(ret, 1, true) or 1000) then
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
137 ret = supported_types[i];
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
138 end
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
139 end
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
140 return ret;
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
141 end
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
142
3929
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
143 local supported_inputs = {
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
144 "application/xmpp+xml",
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
145 "application/json",
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
146 "application/x-www-form-urlencoded",
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
147 "text/plain",
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
148 };
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
149
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
150 local supported_outputs = {
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
151 "application/xmpp+xml",
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
152 "application/json",
4066
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
153 "application/x-www-form-urlencoded",
3929
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
154 };
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
155
4037
991090cb5d18 mod_rest: Add support for CBOR
Kim Alvefur <zash@zash.se>
parents: 4036
diff changeset
156 if have_cbor then
991090cb5d18 mod_rest: Add support for CBOR
Kim Alvefur <zash@zash.se>
parents: 4036
diff changeset
157 table.insert(supported_inputs, "application/cbor");
991090cb5d18 mod_rest: Add support for CBOR
Kim Alvefur <zash@zash.se>
parents: 4036
diff changeset
158 table.insert(supported_outputs, "application/cbor");
991090cb5d18 mod_rest: Add support for CBOR
Kim Alvefur <zash@zash.se>
parents: 4036
diff changeset
159 end
991090cb5d18 mod_rest: Add support for CBOR
Kim Alvefur <zash@zash.se>
parents: 4036
diff changeset
160
4066
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Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
161 -- Only { string : string } can be form-encoded, discard the rest
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
162 -- (jsonmap also discards anything unknown or unsupported)
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
163 local function flatten(t)
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
164 local form = {};
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
165 for k, v in pairs(t) do
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
166 if type(v) == "string" then
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
167 form[k] = v;
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
168 elseif type(v) == "number" then
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
169 form[k] = tostring(v);
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
170 elseif v == true then
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
171 form[k] = "";
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
172 end
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
173 end
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
174 return form;
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
175 end
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
176
3812
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
177 local function encode(type, s)
3813
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
178 if type == "application/json" then
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
179 return json.encode(jsonmap.st2json(s));
4066
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
180 elseif type == "application/x-www-form-urlencoded" then
07ae583bc565 mod_rest: Add support for form-encoded output
Kim Alvefur <zash@zash.se>
parents: 4037
diff changeset
181 return http.formencode(flatten(jsonmap.st2json(s)));
4037
991090cb5d18 mod_rest: Add support for CBOR
Kim Alvefur <zash@zash.se>
parents: 4036
diff changeset
182 elseif type == "application/cbor" then
991090cb5d18 mod_rest: Add support for CBOR
Kim Alvefur <zash@zash.se>
parents: 4036
diff changeset
183 return cbor.encode(jsonmap.st2json(s));
3813
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
184 elseif type == "text/plain" then
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
185 return s:get_child_text("body") or "";
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
186 end
3812
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
187 return tostring(s);
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
188 end
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
189
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
190 local post_errors = errors.init("mod_rest", {
3971
ae5ac41c391d mod_rest: Improve auth error reporting
Kim Alvefur <zash@zash.se>
parents: 3933
diff changeset
191 noauthz = { code = 401, type = "auth", condition = "not-authorized", text = "No credentials provided" },
ae5ac41c391d mod_rest: Improve auth error reporting
Kim Alvefur <zash@zash.se>
parents: 3933
diff changeset
192 unauthz = { code = 403, type = "auth", condition = "not-authorized", text = "Credentials not accepted" },
3930
d5dafd617cd6 mod_rest: Break out POST errors into a registry
Kim Alvefur <zash@zash.se>
parents: 3929
diff changeset
193 parse = { code = 400, condition = "not-well-formed", text = "Failed to parse payload", },
d5dafd617cd6 mod_rest: Break out POST errors into a registry
Kim Alvefur <zash@zash.se>
parents: 3929
diff changeset
194 xmlns = { code = 422, condition = "invalid-namespace", text = "'xmlns' attribute must be empty", },
d5dafd617cd6 mod_rest: Break out POST errors into a registry
Kim Alvefur <zash@zash.se>
parents: 3929
diff changeset
195 name = { code = 422, condition = "unsupported-stanza-type", text = "Invalid stanza, must be 'message', 'presence' or 'iq'.", },
d5dafd617cd6 mod_rest: Break out POST errors into a registry
Kim Alvefur <zash@zash.se>
parents: 3929
diff changeset
196 to = { code = 422, condition = "improper-addressing", text = "Invalid destination JID", },
d5dafd617cd6 mod_rest: Break out POST errors into a registry
Kim Alvefur <zash@zash.se>
parents: 3929
diff changeset
197 from = { code = 422, condition = "invalid-from", text = "Invalid source JID", },
d5dafd617cd6 mod_rest: Break out POST errors into a registry
Kim Alvefur <zash@zash.se>
parents: 3929
diff changeset
198 post_auth = { code = 403, condition = "not-authorized", text = "Not authorized to send stanza with requested 'from'", },
d5dafd617cd6 mod_rest: Break out POST errors into a registry
Kim Alvefur <zash@zash.se>
parents: 3929
diff changeset
199 iq_type = { code = 422, condition = "invalid-xml", text = "'iq' stanza must be of type 'get' or 'set'", },
d5dafd617cd6 mod_rest: Break out POST errors into a registry
Kim Alvefur <zash@zash.se>
parents: 3929
diff changeset
200 iq_tags = { code = 422, condition = "bad-format", text = "'iq' stanza must have exactly one child tag", },
4036
04c11b652aeb mod_rest: Respond to unknown payload types with HTTP status 415
Kim Alvefur <zash@zash.se>
parents: 3971
diff changeset
201 mediatype = { code = 415, condition = "bad-format", text = "Unsupported media type" },
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
202 });
3930
d5dafd617cd6 mod_rest: Break out POST errors into a registry
Kim Alvefur <zash@zash.se>
parents: 3929
diff changeset
203
4478
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
204 -- GET → iq-get
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
205 local function parse_request(request, path)
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
206 if path and request.method == "GET" then
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
207 -- e.g. /verison/{to}
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
208 return parse(nil, nil, "iq/"..path);
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
209 else
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
210 return parse(request.headers.content_type, request.body, path);
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
211 end
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
212 end
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
213
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
214 local function handle_request(event, path)
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
215 local request, response = event.request, event.response;
3910
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
216 local from;
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
217 local origin;
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
218
3802
f88e07630e4e mod_rest: Add support for simple Bearer token auth
Kim Alvefur <zash@zash.se>
parents: 3801
diff changeset
219 if not request.headers.authorization then
3910
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
220 response.headers.www_authenticate = www_authenticate_header;
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
221 return post_errors.new("noauthz");
3876
75b330d4fa6f mod_rest: Add support for HTTP Basic username and password authentication
Kim Alvefur <zash@zash.se>
parents: 3874
diff changeset
222 else
3910
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
223 origin = check_credentials(request);
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
224 if not origin then
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
225 return post_errors.new("unauthz");
3876
75b330d4fa6f mod_rest: Add support for HTTP Basic username and password authentication
Kim Alvefur <zash@zash.se>
parents: 3874
diff changeset
226 end
3910
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
227 from = jid.join(origin.username, origin.host, origin.resource);
3802
f88e07630e4e mod_rest: Add support for simple Bearer token auth
Kim Alvefur <zash@zash.se>
parents: 3801
diff changeset
228 end
4478
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
229 local payload, err = parse_request(request, path);
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
230 if not payload then
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
231 -- parse fail
4036
04c11b652aeb mod_rest: Respond to unknown payload types with HTTP status 415
Kim Alvefur <zash@zash.se>
parents: 3971
diff changeset
232 local ctx = { error = err, type = request.headers.content_type, data = request.body, };
04c11b652aeb mod_rest: Respond to unknown payload types with HTTP status 415
Kim Alvefur <zash@zash.se>
parents: 3971
diff changeset
233 if err == "unknown-payload-type" then
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
234 return post_errors.new("mediatype", ctx);
4036
04c11b652aeb mod_rest: Respond to unknown payload types with HTTP status 415
Kim Alvefur <zash@zash.se>
parents: 3971
diff changeset
235 end
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
236 return post_errors.new("parse", ctx);
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
237 end
4242
6a91d217acc9 mod_rest: Add whitespace to improve readability, code navigation
Kim Alvefur <zash@zash.se>
parents: 4066
diff changeset
238
3801
d59fb4dcf100 mod_rest: Verify that @xmlns is left empty
Kim Alvefur <zash@zash.se>
parents: 3799
diff changeset
239 if payload.attr.xmlns then
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
240 return post_errors.new("xmlns");
3805
683b06c0348f mod_rest: Validate stanza kind earlier
Kim Alvefur <zash@zash.se>
parents: 3804
diff changeset
241 elseif payload.name ~= "message" and payload.name ~= "presence" and payload.name ~= "iq" then
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
242 return post_errors.new("name");
3801
d59fb4dcf100 mod_rest: Verify that @xmlns is left empty
Kim Alvefur <zash@zash.se>
parents: 3799
diff changeset
243 end
4242
6a91d217acc9 mod_rest: Add whitespace to improve readability, code navigation
Kim Alvefur <zash@zash.se>
parents: 4066
diff changeset
244
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
245 local to = jid.prep(payload.attr.to);
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
246 if not to then
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
247 return post_errors.new("to");
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
248 end
4242
6a91d217acc9 mod_rest: Add whitespace to improve readability, code navigation
Kim Alvefur <zash@zash.se>
parents: 4066
diff changeset
249
3910
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
250 if payload.attr.from then
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
251 local requested_from = jid.prep(payload.attr.from);
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
252 if not requested_from then
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
253 return post_errors.new("from");
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
254 end
3910
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
255 if jid.compare(requested_from, from) then
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
256 from = requested_from;
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
257 else
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
258 return post_errors.new("from_auth");
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
259 end
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
260 end
4242
6a91d217acc9 mod_rest: Add whitespace to improve readability, code navigation
Kim Alvefur <zash@zash.se>
parents: 4066
diff changeset
261
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
262 payload.attr = {
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
263 from = from,
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
264 to = to,
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
265 id = payload.attr.id or id.medium(),
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
266 type = payload.attr.type,
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
267 ["xml:lang"] = payload.attr["xml:lang"],
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
268 };
4242
6a91d217acc9 mod_rest: Add whitespace to improve readability, code navigation
Kim Alvefur <zash@zash.se>
parents: 4066
diff changeset
269
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
270 module:log("debug", "Received[rest]: %s", payload:top_tag());
4478
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
271 local send_type = decide_type((request.headers.accept or "") ..",".. (request.headers.content_type or ""), supported_outputs)
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
272 if payload.name == "iq" then
3910
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
273 function origin.send(stanza)
3926
f77ae9685eb6 mod_rest: Fix routing to self-jid (thanks jonas’)
Kim Alvefur <zash@zash.se>
parents: 3925
diff changeset
274 module:send(stanza);
3910
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
275 end
4242
6a91d217acc9 mod_rest: Add whitespace to improve readability, code navigation
Kim Alvefur <zash@zash.se>
parents: 4066
diff changeset
276
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
277 if payload.attr.type ~= "get" and payload.attr.type ~= "set" then
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
278 return post_errors.new("iq_type");
3832
0d4146cf9fbc mod_rest: Enforce single child policy for outgoing it stanzas
Kim Alvefur <zash@zash.se>
parents: 3825
diff changeset
279 elseif #payload.tags ~= 1 then
4244
07c11080027e mod_rest: Use util.error registry datatype
Kim Alvefur <zash@zash.se>
parents: 4242
diff changeset
280 return post_errors.new("iq_tags");
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
281 end
4242
6a91d217acc9 mod_rest: Add whitespace to improve readability, code navigation
Kim Alvefur <zash@zash.se>
parents: 4066
diff changeset
282
3910
49efd1323a1b mod_rest: Add support for token authentication
Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
283 return module:send_iq(payload, origin):next(
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
284 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
285 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
286 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
287 return encode(send_type, result.stanza);
3794
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
288 end,
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
289 function (error)
3909
eb27e51cf2c9 mod_rest: Handle uncaught native errors correctly
Matthew Wild <mwild1@gmail.com>
parents: 3887
diff changeset
290 if not errors.is_err(error) then
eb27e51cf2c9 mod_rest: Handle uncaught native errors correctly
Matthew Wild <mwild1@gmail.com>
parents: 3887
diff changeset
291 module:log("error", "Uncaught native error: %s", error);
eb27e51cf2c9 mod_rest: Handle uncaught native errors correctly
Matthew Wild <mwild1@gmail.com>
parents: 3887
diff changeset
292 return select(2, errors.coerce(nil, error));
eb27e51cf2c9 mod_rest: Handle uncaught native errors correctly
Matthew Wild <mwild1@gmail.com>
parents: 3887
diff changeset
293 elseif 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
294 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
295 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
296 return encode(send_type, error.context.stanza);
3794
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
297 else
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
298 return error;
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
299 end
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
300 end);
3805
683b06c0348f mod_rest: Validate stanza kind earlier
Kim Alvefur <zash@zash.se>
parents: 3804
diff changeset
301 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
302 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
303 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
304 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
305 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
306 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
307 end
4242
6a91d217acc9 mod_rest: Add whitespace to improve readability, code navigation
Kim Alvefur <zash@zash.se>
parents: 4066
diff changeset
308
3814
0dede5b0ab27 mod_rest: Fix return status when sending and forgetting
Kim Alvefur <zash@zash.se>
parents: 3813
diff changeset
309 module:send(payload, origin);
0dede5b0ab27 mod_rest: Fix return status when sending and forgetting
Kim Alvefur <zash@zash.se>
parents: 3813
diff changeset
310 return 202;
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
311 end
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
312 end
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
313
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
314 -- Handle stanzas submitted via HTTP
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
315 module:depends("http");
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
316 module:provides("http", {
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
317 route = {
4478
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
318 POST = handle_request;
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
319 ["POST /*"] = handle_request;
7ab0c423688a mod_rest: Support GET for certain IQ queries
Kim Alvefur <zash@zash.se>
parents: 4477
diff changeset
320 ["GET /*"] = handle_request;
3794
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
321 };
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
322 });
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
323
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
324 -- 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
325 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
326 if rest_url then
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
327 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
328 if send_type == "json" then
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
329 send_type = "application/json";
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
330 end
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
331
3862
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
332 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
333 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
334 method = "OPTIONS",
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
335 }, function (body, code, response)
3862
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
336 if code == 0 then
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
337 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
338 else
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
339 module:set_status("info", "Connected");
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
340 end
3861
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
341 if code == 200 and response.headers.accept then
3929
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
342 send_type = decide_type(response.headers.accept, supported_outputs);
3861
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
343 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
344 end
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
345 end);
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
346
4245
7bf3bf81c9ef mod_rest: Use HTTP error mapping from net.http.errors
Kim Alvefur <zash@zash.se>
parents: 4244
diff changeset
347 local code2err = require "net.http.errors".registry;
3797
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
348
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
349 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
350 local stanza, origin = event.stanza, event.origin;
4250
8b489203e4d3 mod_rest: Ensure no attempt is made to reply to an error stanza
Kim Alvefur <zash@zash.se>
parents: 4249
diff changeset
351 local reply_allowed = stanza.attr.type ~= "error";
8b489203e4d3 mod_rest: Ensure no attempt is made to reply to an error stanza
Kim Alvefur <zash@zash.se>
parents: 4249
diff changeset
352 local reply_needed = reply_allowed and stanza.name == "iq";
3798
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
353 local receipt;
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
354
4250
8b489203e4d3 mod_rest: Ensure no attempt is made to reply to an error stanza
Kim Alvefur <zash@zash.se>
parents: 4249
diff changeset
355 if reply_allowed and stanza.name == "message" and stanza.attr.id and stanza:get_child("urn:xmpp:receipts", "request") then
3798
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
356 reply_needed = true;
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
357 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
358 end
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
359
3812
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
360 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
361
a1f1f703d604 mod_rest: Allow collection of original stanza after sending HTTP request
Kim Alvefur <zash@zash.se>
parents: 3798
diff changeset
362 -- 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
363 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
364
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
365 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
366 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
367 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
368 headers = {
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
369 ["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
370 ["Content-Language"] = stanza.attr["xml:lang"],
3929
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
371 Accept = table.concat(supported_inputs, ", ");
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
372 },
4247
1f93fa24611d mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents: 4245
diff changeset
373 }):next(function (response)
1f93fa24611d mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents: 4245
diff changeset
374 module:set_status("info", "Connected");
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
375 local reply;
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
376
4247
1f93fa24611d mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents: 4245
diff changeset
377 local code, body = response.code, response.body;
4250
8b489203e4d3 mod_rest: Ensure no attempt is made to reply to an error stanza
Kim Alvefur <zash@zash.se>
parents: 4249
diff changeset
378 if not reply_allowed then
8b489203e4d3 mod_rest: Ensure no attempt is made to reply to an error stanza
Kim Alvefur <zash@zash.se>
parents: 4249
diff changeset
379 return;
8b489203e4d3 mod_rest: Ensure no attempt is made to reply to an error stanza
Kim Alvefur <zash@zash.se>
parents: 4249
diff changeset
380 elseif code == 202 or code == 204 then
3867
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
381 if not reply_needed then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
382 -- Delivered, no reply
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
383 return;
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
384 end
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
385 else
3867
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
386 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
387 if not parsed then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
388 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
389 elseif parsed.name ~= stanza.name then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
390 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
391 else
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
392 parsed.attr = {
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
393 from = stanza.attr.to,
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
394 to = stanza.attr.from,
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
395 id = parsed.attr.id or id.medium();
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
396 type = parsed.attr.type,
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
397 ["xml:lang"] = parsed.attr["xml:lang"],
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
398 };
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
399 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
400 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
401 end
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
402 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
403 parsed.attr.type = "error";
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
404 end
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
405 if parsed.attr.type == "error" then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
406 parsed.attr.id = stanza.attr.id;
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
407 elseif parsed.name == "iq" then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
408 parsed.attr.id = stanza.attr.id;
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
409 parsed.attr.type = "result";
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
410 end
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
411 reply = parsed;
3821
11272a3233ce mod_rest: Fix replying to groupchat messages
Kim Alvefur <zash@zash.se>
parents: 3816
diff changeset
412 end
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
413 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
414
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
415 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
416 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
417 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
418 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
419 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
420 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
421 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
422 -- 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
423 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
424 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
425 elseif code_hundreds == 400 then
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
426 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
427 elseif code_hundreds == 500 then
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
428 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
429 else
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
430 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
431 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
432 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
433
3798
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
434 if receipt then
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
435 reply:add_direct_child(receipt);
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
436 end
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
437
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
438 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
439
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
440 origin.send(reply);
4247
1f93fa24611d mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents: 4245
diff changeset
441 end,
1f93fa24611d mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents: 4245
diff changeset
442 function (err)
1f93fa24611d mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents: 4245
diff changeset
443 module:log_status("error", "Could not connect to callback URL %q: %s", rest_url, err);
1f93fa24611d mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents: 4245
diff changeset
444 origin.send(st.error_reply(stanza, "wait", "recipient-unavailable", err.text));
4249
64aa1d9d70ac mod_rest: Catch and log errors in callback promise chain
Kim Alvefur <zash@zash.se>
parents: 4247
diff changeset
445 end):catch(function (err)
64aa1d9d70ac mod_rest: Catch and log errors in callback promise chain
Kim Alvefur <zash@zash.se>
parents: 4247
diff changeset
446 module:log("error", "Error[rest]: %s", err);
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
447 end);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
448
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
449 return true;
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
450 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
451
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
452 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
453 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
454 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
455 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
456 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
457 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
458 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
459 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
460 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
461 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
462 else
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
463 -- 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
464 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
465 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
466 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
467 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
468 end
3842
501c7edc8c37 mod_rest: Encode errors as JSON
Kim Alvefur <zash@zash.se>
parents: 3832
diff changeset
469
3929
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
470 local supported_errors = {
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
471 "text/html",
3931
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
472 "application/xmpp+xml",
3929
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
473 "application/json",
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
474 };
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
475
3873
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
476 local http_server = require "net.http.server";
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
477 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
478 local request, response = event.request, event.response;
3931
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
479 local response_as = decide_type(request and request.headers.accept or "", supported_errors);
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
480 if response_as == "application/xmpp+xml" then
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
481 if response then
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
482 response.headers.content_type = "application/xmpp+xml";
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
483 end
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
484 local stream_error = st.stanza("error", { xmlns = "http://etherx.jabber.org/streams" });
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
485 if event.error then
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
486 stream_error:tag(event.error.condition, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }):up();
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
487 if event.error.text then
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
488 stream_error:text_tag("text", event.error.text, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' });
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
489 end
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
490 end
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
491 return tostring(stream_error);
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
492 elseif response_as == "application/json" then
3873
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
493 if response then
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
494 response.headers.content_type = "application/json";
3842
501c7edc8c37 mod_rest: Encode errors as JSON
Kim Alvefur <zash@zash.se>
parents: 3832
diff changeset
495 end
3873
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
496 return json.encode({
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
497 type = "error",
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
498 error = event.error,
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
499 code = event.code,
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
500 });
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
501 end
3933
93147b89ea67 mod_rest: Avoid interfering with mod_http_oauth2 errors (fixes #1500)
Kim Alvefur <zash@zash.se>
parents: 3931
diff changeset
502 end, 1);