Mercurial > prosody-modules
annotate mod_rest/mod_rest.lua @ 4511:97fac0ba0469
mod_pubsub_subscription: New module providing an API for pubsub subscriptions
This lets other modules hook events from local or remote XEP-0060 pubsub
services. API allows keeping track of items added, removed or if the
whole node gets cleared or even deleted.
Requested by MattJ.
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 15 Mar 2021 16:31:23 +0100 |
parents | 508cb880b163 |
children | 81d0748bff5b |
rev | line source |
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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"; |
3813 | 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"; |
4037 | 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] = st_type == "ping" or data or {}; |
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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); |
3813 | 87 elseif mimetype == "application/json" then |
88 local parsed, err = json.decode(data); | |
89 if not parsed then | |
90 return parsed, err; | |
91 end | |
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92 if path then |
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93 parsed = amend_from_path(parsed, path); |
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94 if not parsed then return nil, "invalid-path"; end |
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95 end |
3813 | 96 return jsonmap.json2st(parsed); |
4037 | 97 elseif mimetype == "application/cbor" and have_cbor then |
98 local parsed, err = cbor.decode(data); | |
99 if not parsed then | |
100 return parsed, err; | |
101 end | |
102 return jsonmap.json2st(parsed); | |
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103 elseif mimetype == "application/x-www-form-urlencoded"then |
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104 local parsed = http.formdecode(data); |
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105 if type(parsed) == "string" then |
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106 -- This should reject GET /iq/query/to?messagebody |
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107 if path then |
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108 return nil, "invalid-query"; |
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109 end |
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110 return parse("text/plain", parsed); |
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111 end |
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112 for i = #parsed, 1, -1 do |
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113 parsed[i] = nil; |
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114 end |
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115 if path then |
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116 parsed = amend_from_path(parsed, path); |
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117 if not parsed then return nil, "invalid-path"; end |
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118 end |
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119 return jsonmap.json2st(parsed); |
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120 elseif mimetype == "text/plain" then |
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121 if not path then |
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122 return st.message({ type = "chat" }, data); |
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123 end |
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124 local parsed = {}; |
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125 if path then |
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126 parsed = amend_from_path(parsed, path); |
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127 if not parsed then return nil, "invalid-path"; end |
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128 end |
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129 if parsed.kind == "message" then |
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130 parsed.body = data; |
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131 elseif parsed.kind == "presence" then |
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132 parsed.show = data; |
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133 else |
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134 return nil, "invalid-path"; |
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135 end |
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136 return jsonmap.json2st(parsed); |
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137 elseif not mimetype and path then |
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138 local parsed = amend_from_path({}, path); |
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139 if not parsed then return nil, "invalid-path"; end |
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140 return jsonmap.json2st(parsed); |
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141 end |
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142 return nil, "unknown-payload-type"; |
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143 end |
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144 |
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145 local function decide_type(accept, supported_types) |
3813 | 146 -- assumes the accept header is sorted |
147 local ret = supported_types[1]; | |
148 for i = 2, #supported_types do | |
149 if (accept:find(supported_types[i], 1, true) or 1000) < (accept:find(ret, 1, true) or 1000) then | |
150 ret = supported_types[i]; | |
151 end | |
152 end | |
153 return ret; | |
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154 end |
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155 |
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156 local supported_inputs = { |
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157 "application/xmpp+xml", |
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158 "application/json", |
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159 "application/x-www-form-urlencoded", |
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160 "text/plain", |
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161 }; |
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162 |
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163 local supported_outputs = { |
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164 "application/xmpp+xml", |
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165 "application/json", |
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166 "application/x-www-form-urlencoded", |
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167 }; |
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168 |
4037 | 169 if have_cbor then |
170 table.insert(supported_inputs, "application/cbor"); | |
171 table.insert(supported_outputs, "application/cbor"); | |
172 end | |
173 | |
4066
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174 -- Only { string : string } can be form-encoded, discard the rest |
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175 -- (jsonmap also discards anything unknown or unsupported) |
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176 local function flatten(t) |
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177 local form = {}; |
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178 for k, v in pairs(t) do |
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179 if type(v) == "string" then |
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180 form[k] = v; |
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181 elseif type(v) == "number" then |
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182 form[k] = tostring(v); |
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183 elseif v == true then |
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184 form[k] = ""; |
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185 end |
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186 end |
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187 return form; |
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|
188 end |
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189 |
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|
190 local function encode(type, s) |
3813 | 191 if type == "application/json" then |
192 return json.encode(jsonmap.st2json(s)); | |
4066
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|
193 elseif type == "application/x-www-form-urlencoded" then |
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|
194 return http.formencode(flatten(jsonmap.st2json(s))); |
4037 | 195 elseif type == "application/cbor" then |
196 return cbor.encode(jsonmap.st2json(s)); | |
3813 | 197 elseif type == "text/plain" then |
198 return s:get_child_text("body") or ""; | |
199 end | |
3812
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200 return tostring(s); |
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|
201 end |
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diff
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|
202 |
4244
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diff
changeset
|
203 local post_errors = errors.init("mod_rest", { |
3971
ae5ac41c391d
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Kim Alvefur <zash@zash.se>
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3933
diff
changeset
|
204 noauthz = { code = 401, type = "auth", condition = "not-authorized", text = "No credentials provided" }, |
ae5ac41c391d
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3933
diff
changeset
|
205 unauthz = { code = 403, type = "auth", condition = "not-authorized", text = "Credentials not accepted" }, |
3930
d5dafd617cd6
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parents:
3929
diff
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|
206 parse = { code = 400, condition = "not-well-formed", text = "Failed to parse payload", }, |
d5dafd617cd6
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3929
diff
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|
207 xmlns = { code = 422, condition = "invalid-namespace", text = "'xmlns' attribute must be empty", }, |
d5dafd617cd6
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3929
diff
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|
208 name = { code = 422, condition = "unsupported-stanza-type", text = "Invalid stanza, must be 'message', 'presence' or 'iq'.", }, |
d5dafd617cd6
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3929
diff
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|
209 to = { code = 422, condition = "improper-addressing", text = "Invalid destination JID", }, |
d5dafd617cd6
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diff
changeset
|
210 from = { code = 422, condition = "invalid-from", text = "Invalid source JID", }, |
d5dafd617cd6
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3929
diff
changeset
|
211 post_auth = { code = 403, condition = "not-authorized", text = "Not authorized to send stanza with requested 'from'", }, |
d5dafd617cd6
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3929
diff
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|
212 iq_type = { code = 422, condition = "invalid-xml", text = "'iq' stanza must be of type 'get' or 'set'", }, |
d5dafd617cd6
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3929
diff
changeset
|
213 iq_tags = { code = 422, condition = "bad-format", text = "'iq' stanza must have exactly one child tag", }, |
4036
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Kim Alvefur <zash@zash.se>
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3971
diff
changeset
|
214 mediatype = { code = 415, condition = "bad-format", text = "Unsupported media type" }, |
4244
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diff
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|
215 }); |
3930
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diff
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|
216 |
4478
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diff
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|
217 -- GET → iq-get |
7ab0c423688a
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diff
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|
218 local function parse_request(request, path) |
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diff
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|
219 if path and request.method == "GET" then |
4506
508cb880b163
mod_rest: Fix typos [codespell]
Kim Alvefur <zash@zash.se>
parents:
4503
diff
changeset
|
220 -- e.g. /version/{to} |
4503
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Kim Alvefur <zash@zash.se>
parents:
4502
diff
changeset
|
221 if request.url.query then |
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4502
diff
changeset
|
222 return parse("application/x-www-form-urlencoded", request.url.query, "iq/"..path); |
80912726405d
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parents:
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diff
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|
223 end |
4478
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diff
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|
224 return parse(nil, nil, "iq/"..path); |
7ab0c423688a
mod_rest: Support GET for certain IQ queries
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diff
changeset
|
225 else |
7ab0c423688a
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diff
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|
226 return parse(request.headers.content_type, request.body, path); |
7ab0c423688a
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diff
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|
227 end |
7ab0c423688a
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diff
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|
228 end |
7ab0c423688a
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diff
changeset
|
229 |
7ab0c423688a
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diff
changeset
|
230 local function handle_request(event, path) |
3794
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
231 local request, response = event.request, event.response; |
3910
49efd1323a1b
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Matthew Wild <mwild1@gmail.com>
parents:
3909
diff
changeset
|
232 local from; |
49efd1323a1b
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Matthew Wild <mwild1@gmail.com>
parents:
3909
diff
changeset
|
233 local origin; |
49efd1323a1b
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3909
diff
changeset
|
234 |
3802
f88e07630e4e
mod_rest: Add support for simple Bearer token auth
Kim Alvefur <zash@zash.se>
parents:
3801
diff
changeset
|
235 if not request.headers.authorization then |
3910
49efd1323a1b
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Matthew Wild <mwild1@gmail.com>
parents:
3909
diff
changeset
|
236 response.headers.www_authenticate = www_authenticate_header; |
4244
07c11080027e
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parents:
4242
diff
changeset
|
237 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
|
238 else |
3910
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parents:
3909
diff
changeset
|
239 origin = check_credentials(request); |
49efd1323a1b
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parents:
3909
diff
changeset
|
240 if not origin then |
4244
07c11080027e
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Kim Alvefur <zash@zash.se>
parents:
4242
diff
changeset
|
241 return post_errors.new("unauthz"); |
3876
75b330d4fa6f
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Kim Alvefur <zash@zash.se>
parents:
3874
diff
changeset
|
242 end |
3910
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parents:
3909
diff
changeset
|
243 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
|
244 end |
4478
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parents:
4477
diff
changeset
|
245 local payload, err = parse_request(request, path); |
3794
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
246 if not payload then |
4b258329e6e4
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
247 -- parse fail |
4036
04c11b652aeb
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Kim Alvefur <zash@zash.se>
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3971
diff
changeset
|
248 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
|
249 if err == "unknown-payload-type" then |
4244
07c11080027e
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Kim Alvefur <zash@zash.se>
parents:
4242
diff
changeset
|
250 return post_errors.new("mediatype", ctx); |
4036
04c11b652aeb
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Kim Alvefur <zash@zash.se>
parents:
3971
diff
changeset
|
251 end |
4244
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parents:
4242
diff
changeset
|
252 return post_errors.new("parse", ctx); |
3794
4b258329e6e4
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
253 end |
4242
6a91d217acc9
mod_rest: Add whitespace to improve readability, code navigation
Kim Alvefur <zash@zash.se>
parents:
4066
diff
changeset
|
254 |
3801
d59fb4dcf100
mod_rest: Verify that @xmlns is left empty
Kim Alvefur <zash@zash.se>
parents:
3799
diff
changeset
|
255 if payload.attr.xmlns then |
4244
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256 return post_errors.new("xmlns"); |
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257 elseif payload.name ~= "message" and payload.name ~= "presence" and payload.name ~= "iq" then |
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258 return post_errors.new("name"); |
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259 end |
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260 |
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261 local to = jid.prep(payload.attr.to); |
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262 if payload.attr.to and not to then |
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263 return post_errors.new("to"); |
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264 end |
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265 |
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266 if payload.attr.from then |
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267 local requested_from = jid.prep(payload.attr.from); |
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268 if not requested_from then |
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269 return post_errors.new("from"); |
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270 end |
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271 if jid.compare(requested_from, from) then |
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272 from = requested_from; |
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273 else |
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274 return post_errors.new("from_auth"); |
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275 end |
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276 end |
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277 |
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278 payload.attr = { |
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279 from = from, |
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280 to = to, |
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281 id = payload.attr.id or id.medium(), |
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282 type = payload.attr.type, |
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283 ["xml:lang"] = payload.attr["xml:lang"], |
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284 }; |
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285 |
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286 module:log("debug", "Received[rest]: %s", payload:top_tag()); |
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287 local send_type = decide_type((request.headers.accept or "") ..",".. (request.headers.content_type or ""), supported_outputs) |
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288 if payload.name == "iq" then |
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289 function origin.send(stanza) |
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290 module:send(stanza); |
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291 end |
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292 |
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293 if payload.attr.type ~= "get" and payload.attr.type ~= "set" then |
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294 return post_errors.new("iq_type"); |
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295 elseif #payload.tags ~= 1 then |
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296 return post_errors.new("iq_tags"); |
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297 end |
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298 |
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299 return module:send_iq(payload, origin):next( |
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300 function (result) |
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301 module:log("debug", "Sending[rest]: %s", result.stanza:top_tag()); |
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302 response.headers.content_type = send_type; |
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303 return encode(send_type, result.stanza); |
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304 end, |
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305 function (error) |
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306 if not errors.is_err(error) then |
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307 module:log("error", "Uncaught native error: %s", error); |
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308 return select(2, errors.coerce(nil, error)); |
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309 elseif error.context and error.context.stanza then |
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310 response.headers.content_type = send_type; |
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311 module:log("debug", "Sending[rest]: %s", error.context.stanza:top_tag()); |
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312 return encode(send_type, error.context.stanza); |
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313 else |
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314 return error; |
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315 end |
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316 end); |
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317 else |
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318 function origin.send(stanza) |
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319 module:log("debug", "Sending[rest]: %s", stanza:top_tag()); |
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320 response.headers.content_type = send_type; |
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321 response:send(encode(send_type, stanza)); |
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322 return true; |
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323 end |
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324 |
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325 module:send(payload, origin); |
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326 return 202; |
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327 end |
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328 end |
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329 |
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330 local demo_handlers = {}; |
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331 if module:get_option_path("rest_demo_resources", nil) then |
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332 demo_handlers = module:require"apidemo"; |
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333 end |
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334 |
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335 -- Handle stanzas submitted via HTTP |
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336 module:depends("http"); |
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337 module:provides("http", { |
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338 route = { |
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339 POST = handle_request; |
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340 ["POST /*"] = handle_request; |
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341 ["GET /*"] = handle_request; |
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342 |
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343 -- Only if api_demo_resources are set |
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344 ["GET /"] = demo_handlers.redirect; |
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345 ["GET /demo/"] = demo_handlers.main_page; |
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346 ["GET /demo/openapi.yaml"] = demo_handlers.schema; |
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347 ["GET /demo/*"] = demo_handlers.resources; |
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348 }; |
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349 }); |
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350 |
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351 -- Forward stanzas from XMPP to HTTP and return any reply |
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352 local rest_url = module:get_option_string("rest_callback_url", nil); |
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353 if rest_url then |
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354 local send_type = module:get_option_string("rest_callback_content_type", "application/xmpp+xml"); |
3813 | 355 if send_type == "json" then |
356 send_type = "application/json"; | |
357 end | |
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358 |
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359 module:set_status("info", "Not yet connected"); |
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360 http.request(rest_url, { |
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361 method = "OPTIONS", |
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362 }, function (body, code, response) |
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363 if code == 0 then |
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364 return module:log_status("error", "Could not connect to callback URL %q: %s", rest_url, body); |
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365 else |
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366 module:set_status("info", "Connected"); |
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367 end |
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368 if code == 200 and response.headers.accept then |
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369 send_type = decide_type(response.headers.accept, supported_outputs); |
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370 module:log("debug", "Set 'rest_callback_content_type' = %q based on Accept header", send_type); |
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371 end |
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372 end); |
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373 |
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Kim Alvefur <zash@zash.se>
parents:
4244
diff
changeset
|
374 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
|
375 |
3795
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
376 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
|
377 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
|
378 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
|
379 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
|
380 local receipt; |
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
381 |
4250
8b489203e4d3
mod_rest: Ensure no attempt is made to reply to an error stanza
Kim Alvefur <zash@zash.se>
parents:
4249
diff
changeset
|
382 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
|
383 reply_needed = true; |
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
384 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
|
385 end |
3795
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
386 |
3812
f027b8b1e794
mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents:
3811
diff
changeset
|
387 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
|
388 |
a1f1f703d604
mod_rest: Allow collection of original stanza after sending HTTP request
Kim Alvefur <zash@zash.se>
parents:
3798
diff
changeset
|
389 -- 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
|
390 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
|
391 |
3803
dc2b5a412286
mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents:
3802
diff
changeset
|
392 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
|
393 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
|
394 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
|
395 headers = { |
3811
eb25110696cd
mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents:
3810
diff
changeset
|
396 ["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
|
397 ["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
|
398 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
|
399 }, |
4247
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
400 }):next(function (response) |
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
401 module:set_status("info", "Connected"); |
3810
91ff86fc3b20
mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents:
3807
diff
changeset
|
402 local reply; |
3795
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
403 |
4247
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
404 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
|
405 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
|
406 return; |
8b489203e4d3
mod_rest: Ensure no attempt is made to reply to an error stanza
Kim Alvefur <zash@zash.se>
parents:
4249
diff
changeset
|
407 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
|
408 if not reply_needed then |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
409 -- Delivered, no reply |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
410 return; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
411 end |
3810
91ff86fc3b20
mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents:
3807
diff
changeset
|
412 else |
3867
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
413 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
|
414 if not parsed then |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
415 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
|
416 elseif parsed.name ~= stanza.name then |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
417 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
|
418 else |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
419 parsed.attr = { |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
420 from = stanza.attr.to, |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
421 to = stanza.attr.from, |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
422 id = parsed.attr.id or id.medium(); |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
423 type = parsed.attr.type, |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
424 ["xml:lang"] = parsed.attr["xml:lang"], |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
425 }; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
426 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
|
427 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
|
428 end |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
429 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
|
430 parsed.attr.type = "error"; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
431 end |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
432 if parsed.attr.type == "error" then |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
433 parsed.attr.id = stanza.attr.id; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
434 elseif parsed.name == "iq" then |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
435 parsed.attr.id = stanza.attr.id; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
436 parsed.attr.type = "result"; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
437 end |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
438 reply = parsed; |
3821
11272a3233ce
mod_rest: Fix replying to groupchat messages
Kim Alvefur <zash@zash.se>
parents:
3816
diff
changeset
|
439 end |
3795
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
440 end |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
441 |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
442 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
|
443 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
|
444 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
|
445 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
|
446 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
|
447 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
|
448 end |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
449 -- 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
|
450 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
|
451 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
|
452 elseif code_hundreds == 400 then |
3810
91ff86fc3b20
mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents:
3807
diff
changeset
|
453 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
|
454 elseif code_hundreds == 500 then |
3810
91ff86fc3b20
mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents:
3807
diff
changeset
|
455 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
|
456 else |
3810
91ff86fc3b20
mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents:
3807
diff
changeset
|
457 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
|
458 end |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
459 end |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
460 |
3798
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
461 if receipt then |
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
462 reply:add_direct_child(receipt); |
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
463 end |
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
464 |
3803
dc2b5a412286
mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents:
3802
diff
changeset
|
465 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
|
466 |
3795
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
467 origin.send(reply); |
4247
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
468 end, |
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
469 function (err) |
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
470 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
|
471 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
|
472 end):catch(function (err) |
64aa1d9d70ac
mod_rest: Catch and log errors in callback promise chain
Kim Alvefur <zash@zash.se>
parents:
4247
diff
changeset
|
473 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
|
474 end); |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
475 |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
476 return true; |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
477 end |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
478 |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
479 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
|
480 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
|
481 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
|
482 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
|
483 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
|
484 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
|
485 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
|
486 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
|
487 module:hook("message/host", handle_stanza, -1); |
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488 module:hook("presence/host", handle_stanza, -1); |
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489 else |
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490 -- Don't override everything on normal VirtualHosts |
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491 module:hook("iq/host", handle_stanza, -1); |
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492 module:hook("message/host", handle_stanza, -1); |
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493 module:hook("presence/host", handle_stanza, -1); |
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494 end |
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495 end |
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496 |
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497 local supported_errors = { |
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498 "text/html", |
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499 "application/xmpp+xml", |
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500 "application/json", |
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501 }; |
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502 |
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503 local http_server = require "net.http.server"; |
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504 module:hook_object_event(http_server, "http-error", function (event) |
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505 local request, response = event.request, event.response; |
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506 local response_as = decide_type(request and request.headers.accept or "", supported_errors); |
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507 if response_as == "application/xmpp+xml" then |
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508 if response then |
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509 response.headers.content_type = "application/xmpp+xml"; |
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510 end |
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511 local stream_error = st.stanza("error", { xmlns = "http://etherx.jabber.org/streams" }); |
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512 if event.error then |
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513 stream_error:tag(event.error.condition, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }):up(); |
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514 if event.error.text then |
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515 stream_error:text_tag("text", event.error.text, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }); |
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516 end |
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517 end |
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518 return tostring(stream_error); |
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519 elseif response_as == "application/json" then |
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520 if response then |
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521 response.headers.content_type = "application/json"; |
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522 end |
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523 return json.encode({ |
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524 type = "error", |
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525 error = event.error, |
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526 code = event.code, |
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527 }); |
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528 end |
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529 end, 1); |