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mod_rest/mod_rest.lua @ 4669:d3434fd151b5
mod_http_oauth2: Optimize cleanup timer
Pause exactly until after the next entry has expired.
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 02 Sep 2021 23:03:41 +0200 |
parent | 4532:183c2abdc3c4 |
child | 4699:a8af632daf48 |
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 local function check_credentials(request) |
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35 local auth_type, auth_data = string.match(request.headers.authorization, "^(%S+)%s(.+)$"); |
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36 if not (auth_type and auth_data) or not auth_mechanisms:contains(auth_type) then |
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37 return false; |
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38 end |
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39 |
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40 if auth_type == "Basic" then |
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41 local creds = base64.decode(auth_data); |
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42 if not creds then return false; end |
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43 local username, password = string.match(creds, "^([^:]+):(.*)$"); |
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44 if not username then return false; end |
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45 username, password = encodings.stringprep.nodeprep(username), encodings.stringprep.saslprep(password); |
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46 if not username then return false; end |
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47 if not um.test_password(username, module.host, password) then |
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48 return false; |
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49 end |
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50 return { username = username, host = module.host }; |
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51 elseif auth_type == "Bearer" then |
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52 local token_info = tokens.get_token_info(auth_data); |
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53 if not token_info or not token_info.session then |
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54 return false; |
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55 end |
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56 return token_info.session; |
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57 end |
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58 return nil; |
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59 end |
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60 |
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61 -- (table, string) -> table |
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62 local function amend_from_path(data, path) |
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63 local st_kind, st_type, st_to = path:match("^([mpi]%w+)/(%w+)/(.*)$"); |
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64 if not st_kind then return; end |
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65 if st_kind == "iq" and st_type ~= "get" and st_type ~= "set" then |
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66 -- GET /iq/disco/jid |
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67 data = { |
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68 kind = "iq"; |
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69 type = "get"; |
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70 [st_type] = st_type == "ping" or data or {}; |
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71 }; |
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72 else |
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73 data.kind = st_kind; |
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74 data.type = st_type; |
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75 end |
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76 if st_to and st_to ~= "" then |
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77 data.to = st_to; |
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78 end |
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79 return data; |
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80 end |
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81 |
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82 local function parse(mimetype, data, path) --> Stanza, error enum |
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83 mimetype = mimetype and mimetype:match("^[^; ]*"); |
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84 if mimetype == "application/xmpp+xml" then |
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85 return xml.parse(data); |
3813 | 86 elseif mimetype == "application/json" then |
87 local parsed, err = json.decode(data); | |
88 if not parsed then | |
89 return parsed, err; | |
90 end | |
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91 if path then |
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92 parsed = amend_from_path(parsed, path); |
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93 if not parsed then return nil, "invalid-path"; end |
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94 end |
3813 | 95 return jsonmap.json2st(parsed); |
4037 | 96 elseif mimetype == "application/cbor" and have_cbor then |
97 local parsed, err = cbor.decode(data); | |
98 if not parsed then | |
99 return parsed, err; | |
100 end | |
101 return jsonmap.json2st(parsed); | |
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102 elseif mimetype == "application/x-www-form-urlencoded"then |
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103 local parsed = http.formdecode(data); |
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104 if type(parsed) == "string" then |
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105 -- This should reject GET /iq/query/to?messagebody |
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106 if path then |
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107 return nil, "invalid-query"; |
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108 end |
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109 return parse("text/plain", parsed); |
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110 end |
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111 for i = #parsed, 1, -1 do |
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112 parsed[i] = nil; |
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113 end |
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114 if path then |
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115 parsed = amend_from_path(parsed, path); |
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116 if not parsed then return nil, "invalid-path"; end |
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117 end |
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118 return jsonmap.json2st(parsed); |
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119 elseif mimetype == "text/plain" then |
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120 if not path then |
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121 return st.message({ type = "chat" }, data); |
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122 end |
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123 local parsed = {}; |
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124 if path then |
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125 parsed = amend_from_path(parsed, path); |
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126 if not parsed then return nil, "invalid-path"; end |
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127 end |
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128 if parsed.kind == "message" then |
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129 parsed.body = data; |
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130 elseif parsed.kind == "presence" then |
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131 parsed.show = data; |
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132 else |
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133 return nil, "invalid-path"; |
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134 end |
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135 return jsonmap.json2st(parsed); |
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136 elseif not mimetype and path then |
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137 local parsed = amend_from_path({}, path); |
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138 if not parsed then return nil, "invalid-path"; end |
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139 return jsonmap.json2st(parsed); |
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140 end |
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141 return nil, "unknown-payload-type"; |
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142 end |
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143 |
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144 local function decide_type(accept, supported_types) |
3813 | 145 -- assumes the accept header is sorted |
146 local ret = supported_types[1]; | |
147 for i = 2, #supported_types do | |
148 if (accept:find(supported_types[i], 1, true) or 1000) < (accept:find(ret, 1, true) or 1000) then | |
149 ret = supported_types[i]; | |
150 end | |
151 end | |
152 return ret; | |
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153 end |
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154 |
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155 local supported_inputs = { |
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156 "application/xmpp+xml", |
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157 "application/json", |
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158 "application/x-www-form-urlencoded", |
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159 "text/plain", |
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160 }; |
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161 |
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162 local supported_outputs = { |
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163 "application/xmpp+xml", |
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164 "application/json", |
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165 "application/x-www-form-urlencoded", |
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166 }; |
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167 |
4037 | 168 if have_cbor then |
169 table.insert(supported_inputs, "application/cbor"); | |
170 table.insert(supported_outputs, "application/cbor"); | |
171 end | |
172 | |
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173 -- Only { string : string } can be form-encoded, discard the rest |
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174 -- (jsonmap also discards anything unknown or unsupported) |
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175 local function flatten(t) |
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176 local form = {}; |
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177 for k, v in pairs(t) do |
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178 if type(v) == "string" then |
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179 form[k] = v; |
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180 elseif type(v) == "number" then |
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181 form[k] = tostring(v); |
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182 elseif v == true then |
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183 form[k] = ""; |
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184 end |
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185 end |
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|
186 return form; |
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187 end |
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188 |
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|
189 local function encode(type, s) |
3813 | 190 if type == "application/json" then |
191 return json.encode(jsonmap.st2json(s)); | |
4066
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|
192 elseif type == "application/x-www-form-urlencoded" then |
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|
193 return http.formencode(flatten(jsonmap.st2json(s))); |
4037 | 194 elseif type == "application/cbor" then |
195 return cbor.encode(jsonmap.st2json(s)); | |
3813 | 196 elseif type == "text/plain" then |
197 return s:get_child_text("body") or ""; | |
198 end | |
3812
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199 return tostring(s); |
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200 end |
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|
201 |
4244
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4242
diff
changeset
|
202 local post_errors = errors.init("mod_rest", { |
3971
ae5ac41c391d
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3933
diff
changeset
|
203 noauthz = { code = 401, type = "auth", condition = "not-authorized", text = "No credentials provided" }, |
ae5ac41c391d
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3933
diff
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|
204 unauthz = { code = 403, type = "auth", condition = "not-authorized", text = "Credentials not accepted" }, |
3930
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3929
diff
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|
205 parse = { code = 400, condition = "not-well-formed", text = "Failed to parse payload", }, |
d5dafd617cd6
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diff
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|
206 xmlns = { code = 422, condition = "invalid-namespace", text = "'xmlns' attribute must be empty", }, |
d5dafd617cd6
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|
207 name = { code = 422, condition = "unsupported-stanza-type", text = "Invalid stanza, must be 'message', 'presence' or 'iq'.", }, |
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|
208 to = { code = 422, condition = "improper-addressing", text = "Invalid destination JID", }, |
d5dafd617cd6
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diff
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|
209 from = { code = 422, condition = "invalid-from", text = "Invalid source JID", }, |
4532
183c2abdc3c4
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4526
diff
changeset
|
210 from_auth = { code = 403, condition = "not-authorized", text = "Not authorized to send stanza with requested 'from'", }, |
3930
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diff
changeset
|
211 iq_type = { code = 422, condition = "invalid-xml", text = "'iq' stanza must be of type 'get' or 'set'", }, |
d5dafd617cd6
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Kim Alvefur <zash@zash.se>
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3929
diff
changeset
|
212 iq_tags = { code = 422, condition = "bad-format", text = "'iq' stanza must have exactly one child tag", }, |
4036
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3971
diff
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|
213 mediatype = { code = 415, condition = "bad-format", text = "Unsupported media type" }, |
4244
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|
214 }); |
3930
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diff
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|
215 |
4478
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diff
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|
216 -- GET → iq-get |
7ab0c423688a
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diff
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|
217 local function parse_request(request, path) |
7ab0c423688a
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diff
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|
218 if path and request.method == "GET" then |
4506
508cb880b163
mod_rest: Fix typos [codespell]
Kim Alvefur <zash@zash.se>
parents:
4503
diff
changeset
|
219 -- e.g. /version/{to} |
4503
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Kim Alvefur <zash@zash.se>
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4502
diff
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|
220 if request.url.query then |
80912726405d
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4502
diff
changeset
|
221 return parse("application/x-www-form-urlencoded", request.url.query, "iq/"..path); |
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4502
diff
changeset
|
222 end |
4478
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diff
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|
223 return parse(nil, nil, "iq/"..path); |
7ab0c423688a
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diff
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|
224 else |
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|
225 return parse(request.headers.content_type, request.body, path); |
7ab0c423688a
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diff
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|
226 end |
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|
227 end |
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diff
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|
228 |
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diff
changeset
|
229 local function handle_request(event, path) |
3794
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
230 local request, response = event.request, event.response; |
3910
49efd1323a1b
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Matthew Wild <mwild1@gmail.com>
parents:
3909
diff
changeset
|
231 local from; |
49efd1323a1b
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3909
diff
changeset
|
232 local origin; |
4514
81d0748bff5b
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Kim Alvefur <zash@zash.se>
parents:
4506
diff
changeset
|
233 local echo = path == "echo"; |
81d0748bff5b
mod_rest: Add an 'echo' endpoint for debugging
Kim Alvefur <zash@zash.se>
parents:
4506
diff
changeset
|
234 if echo then path = nil; end |
3910
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parents:
3909
diff
changeset
|
235 |
3802
f88e07630e4e
mod_rest: Add support for simple Bearer token auth
Kim Alvefur <zash@zash.se>
parents:
3801
diff
changeset
|
236 if not request.headers.authorization then |
3910
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parents:
3909
diff
changeset
|
237 response.headers.www_authenticate = www_authenticate_header; |
4244
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Kim Alvefur <zash@zash.se>
parents:
4242
diff
changeset
|
238 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
|
239 else |
3910
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parents:
3909
diff
changeset
|
240 origin = check_credentials(request); |
49efd1323a1b
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3909
diff
changeset
|
241 if not origin then |
4244
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4242
diff
changeset
|
242 return post_errors.new("unauthz"); |
3876
75b330d4fa6f
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3874
diff
changeset
|
243 end |
3910
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parents:
3909
diff
changeset
|
244 from = jid.join(origin.username, origin.host, origin.resource); |
3802
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mod_rest: Add support for simple Bearer token auth
Kim Alvefur <zash@zash.se>
parents:
3801
diff
changeset
|
245 end |
4478
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Kim Alvefur <zash@zash.se>
parents:
4477
diff
changeset
|
246 local payload, err = parse_request(request, path); |
3794
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
247 if not payload then |
4b258329e6e4
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Kim Alvefur <zash@zash.se>
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diff
changeset
|
248 -- parse fail |
4036
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Kim Alvefur <zash@zash.se>
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3971
diff
changeset
|
249 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
|
250 if err == "unknown-payload-type" then |
4244
07c11080027e
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Kim Alvefur <zash@zash.se>
parents:
4242
diff
changeset
|
251 return post_errors.new("mediatype", ctx); |
4036
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Kim Alvefur <zash@zash.se>
parents:
3971
diff
changeset
|
252 end |
4244
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parents:
4242
diff
changeset
|
253 return post_errors.new("parse", ctx); |
3794
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
254 end |
4242
6a91d217acc9
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Kim Alvefur <zash@zash.se>
parents:
4066
diff
changeset
|
255 |
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256 if payload.attr.xmlns then |
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257 return post_errors.new("xmlns"); |
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258 elseif payload.name ~= "message" and payload.name ~= "presence" and payload.name ~= "iq" then |
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259 return post_errors.new("name"); |
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260 end |
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261 |
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262 local to = jid.prep(payload.attr.to); |
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263 if payload.attr.to and not to then |
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264 return post_errors.new("to"); |
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265 end |
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266 |
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267 if payload.attr.from then |
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268 local requested_from = jid.prep(payload.attr.from); |
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269 if not requested_from then |
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270 return post_errors.new("from"); |
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271 end |
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272 if jid.compare(requested_from, from) then |
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273 from = requested_from; |
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274 else |
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275 return post_errors.new("from_auth"); |
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276 end |
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277 end |
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278 |
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279 payload.attr = { |
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280 from = from, |
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281 to = to, |
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282 id = payload.attr.id or id.medium(), |
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283 type = payload.attr.type, |
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284 ["xml:lang"] = payload.attr["xml:lang"], |
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285 }; |
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286 |
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287 module:log("debug", "Received[rest]: %s", payload:top_tag()); |
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288 local send_type = decide_type((request.headers.accept or "") ..",".. (request.headers.content_type or ""), supported_outputs) |
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289 |
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290 if echo then |
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291 response.headers.content_type = send_type; |
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292 return encode(send_type, payload); |
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293 end |
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294 |
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295 if payload.name == "iq" then |
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296 function origin.send(stanza) |
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297 module:send(stanza); |
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298 end |
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299 |
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300 if payload.attr.type ~= "get" and payload.attr.type ~= "set" then |
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301 return post_errors.new("iq_type"); |
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302 elseif #payload.tags ~= 1 then |
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303 return post_errors.new("iq_tags"); |
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304 end |
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305 |
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306 return module:send_iq(payload, origin):next( |
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307 function (result) |
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308 module:log("debug", "Sending[rest]: %s", result.stanza:top_tag()); |
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309 response.headers.content_type = send_type; |
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310 return encode(send_type, result.stanza); |
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311 end, |
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312 function (error) |
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313 if not errors.is_err(error) then |
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314 module:log("error", "Uncaught native error: %s", error); |
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315 return select(2, errors.coerce(nil, error)); |
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316 elseif error.context and error.context.stanza then |
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317 response.headers.content_type = send_type; |
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318 module:log("debug", "Sending[rest]: %s", error.context.stanza:top_tag()); |
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319 return encode(send_type, error.context.stanza); |
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320 else |
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321 return error; |
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322 end |
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323 end); |
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324 else |
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325 function origin.send(stanza) |
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326 module:log("debug", "Sending[rest]: %s", stanza:top_tag()); |
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327 response.headers.content_type = send_type; |
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328 response:send(encode(send_type, stanza)); |
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329 return true; |
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330 end |
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331 |
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332 module:send(payload, origin); |
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333 return 202; |
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334 end |
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335 end |
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336 |
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337 local demo_handlers = {}; |
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338 if module:get_option_path("rest_demo_resources", nil) then |
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339 demo_handlers = module:require"apidemo"; |
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340 end |
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341 |
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342 -- Handle stanzas submitted via HTTP |
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343 module:depends("http"); |
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344 module:provides("http", { |
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345 route = { |
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346 POST = handle_request; |
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347 ["POST /*"] = handle_request; |
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348 ["GET /*"] = handle_request; |
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349 |
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350 -- Only if api_demo_resources are set |
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351 ["GET /"] = demo_handlers.redirect; |
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352 ["GET /demo/"] = demo_handlers.main_page; |
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353 ["GET /demo/openapi.yaml"] = demo_handlers.schema; |
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354 ["GET /demo/*"] = demo_handlers.resources; |
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355 }; |
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356 }); |
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357 |
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358 -- Forward stanzas from XMPP to HTTP and return any reply |
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359 local rest_url = module:get_option_string("rest_callback_url", nil); |
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360 if rest_url then |
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361 local send_type = module:get_option_string("rest_callback_content_type", "application/xmpp+xml"); |
3813 | 362 if send_type == "json" then |
363 send_type = "application/json"; | |
364 end | |
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365 |
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366 module:set_status("info", "Not yet connected"); |
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367 http.request(rest_url, { |
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368 method = "OPTIONS", |
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369 }, function (body, code, response) |
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370 if code == 0 then |
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371 return module:log_status("error", "Could not connect to callback URL %q: %s", rest_url, body); |
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372 else |
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373 module:set_status("info", "Connected"); |
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374 end |
3861
ede3d1724dd1
mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents:
3858
diff
changeset
|
375 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
|
376 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
|
377 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
|
378 end |
ede3d1724dd1
mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents:
3858
diff
changeset
|
379 end); |
ede3d1724dd1
mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents:
3858
diff
changeset
|
380 |
4245
7bf3bf81c9ef
mod_rest: Use HTTP error mapping from net.http.errors
Kim Alvefur <zash@zash.se>
parents:
4244
diff
changeset
|
381 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
|
382 |
3795
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
383 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
|
384 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
|
385 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
|
386 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
|
387 local receipt; |
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
388 |
4250
8b489203e4d3
mod_rest: Ensure no attempt is made to reply to an error stanza
Kim Alvefur <zash@zash.se>
parents:
4249
diff
changeset
|
389 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
|
390 reply_needed = true; |
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
391 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
|
392 end |
3795
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
393 |
3812
f027b8b1e794
mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents:
3811
diff
changeset
|
394 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
|
395 |
a1f1f703d604
mod_rest: Allow collection of original stanza after sending HTTP request
Kim Alvefur <zash@zash.se>
parents:
3798
diff
changeset
|
396 -- 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
|
397 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
|
398 |
3803
dc2b5a412286
mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents:
3802
diff
changeset
|
399 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
|
400 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
|
401 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
|
402 headers = { |
3811
eb25110696cd
mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents:
3810
diff
changeset
|
403 ["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
|
404 ["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
|
405 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
|
406 }, |
4247
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
407 }):next(function (response) |
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
408 module:set_status("info", "Connected"); |
3810
91ff86fc3b20
mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents:
3807
diff
changeset
|
409 local reply; |
3795
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
410 |
4247
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
411 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
|
412 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
|
413 return; |
8b489203e4d3
mod_rest: Ensure no attempt is made to reply to an error stanza
Kim Alvefur <zash@zash.se>
parents:
4249
diff
changeset
|
414 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
|
415 if not reply_needed then |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
416 -- Delivered, no reply |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
417 return; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
418 end |
3810
91ff86fc3b20
mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents:
3807
diff
changeset
|
419 else |
3867
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
420 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
|
421 if not parsed then |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
422 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
|
423 elseif parsed.name ~= stanza.name then |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
424 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
|
425 else |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
426 parsed.attr = { |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
427 from = stanza.attr.to, |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
428 to = stanza.attr.from, |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
429 id = parsed.attr.id or id.medium(); |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
430 type = parsed.attr.type, |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
431 ["xml:lang"] = parsed.attr["xml:lang"], |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
432 }; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
433 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
|
434 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
|
435 end |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
436 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
|
437 parsed.attr.type = "error"; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
438 end |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
439 if parsed.attr.type == "error" then |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
440 parsed.attr.id = stanza.attr.id; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
441 elseif parsed.name == "iq" then |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
442 parsed.attr.id = stanza.attr.id; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
443 parsed.attr.type = "result"; |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
444 end |
839224be5299
mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents:
3866
diff
changeset
|
445 reply = parsed; |
3821
11272a3233ce
mod_rest: Fix replying to groupchat messages
Kim Alvefur <zash@zash.se>
parents:
3816
diff
changeset
|
446 end |
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 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
|
450 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
|
451 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
|
452 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
|
453 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
|
454 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
|
455 end |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
456 -- 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
|
457 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
|
458 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
|
459 elseif code_hundreds == 400 then |
3810
91ff86fc3b20
mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents:
3807
diff
changeset
|
460 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
|
461 elseif code_hundreds == 500 then |
3810
91ff86fc3b20
mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents:
3807
diff
changeset
|
462 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
|
463 else |
3810
91ff86fc3b20
mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents:
3807
diff
changeset
|
464 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
|
465 end |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
466 end |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
467 |
3798
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
468 if receipt then |
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
469 reply:add_direct_child(receipt); |
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
470 end |
9b4fd2553365
mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents:
3797
diff
changeset
|
471 |
3803
dc2b5a412286
mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents:
3802
diff
changeset
|
472 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
|
473 |
3795
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
474 origin.send(reply); |
4247
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
475 end, |
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
476 function (err) |
1f93fa24611d
mod_rest: Use promise based HTTP client API
Kim Alvefur <zash@zash.se>
parents:
4245
diff
changeset
|
477 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
|
478 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
|
479 end):catch(function (err) |
64aa1d9d70ac
mod_rest: Catch and log errors in callback promise chain
Kim Alvefur <zash@zash.se>
parents:
4247
diff
changeset
|
480 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
|
481 end); |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
482 |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
483 return true; |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
484 end |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
485 |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents:
3794
diff
changeset
|
486 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
|
487 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
|
488 module:hook("message/bare", handle_stanza, -1); |
f51308fcba83
mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
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489 module:hook("presence/bare", handle_stanza, -1); |
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490 module:hook("iq/full", handle_stanza, -1); |
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491 module:hook("message/full", handle_stanza, -1); |
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492 module:hook("presence/full", handle_stanza, -1); |
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493 module:hook("iq/host", handle_stanza, -1); |
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494 module:hook("message/host", handle_stanza, -1); |
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495 module:hook("presence/host", handle_stanza, -1); |
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496 else |
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497 -- Don't override everything on normal VirtualHosts |
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498 module:hook("iq/host", handle_stanza, -1); |
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499 module:hook("message/host", handle_stanza, -1); |
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500 module:hook("presence/host", handle_stanza, -1); |
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501 end |
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502 end |
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503 |
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504 local supported_errors = { |
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505 "text/html", |
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506 "application/xmpp+xml", |
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507 "application/json", |
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508 }; |
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509 |
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510 local http_server = require "net.http.server"; |
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511 module:hook_object_event(http_server, "http-error", function (event) |
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512 local request, response = event.request, event.response; |
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513 local response_as = decide_type(request and request.headers.accept or "", supported_errors); |
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514 if response_as == "application/xmpp+xml" then |
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515 if response then |
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516 response.headers.content_type = "application/xmpp+xml"; |
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517 end |
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518 local stream_error = st.stanza("error", { xmlns = "http://etherx.jabber.org/streams" }); |
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519 if event.error then |
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520 stream_error:tag(event.error.condition, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }):up(); |
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521 if event.error.text then |
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522 stream_error:text_tag("text", event.error.text, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }); |
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523 end |
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524 end |
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525 return tostring(stream_error); |
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526 elseif response_as == "application/json" then |
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527 if response then |
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528 response.headers.content_type = "application/json"; |
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529 end |
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530 return json.encode({ |
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531 type = "error", |
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532 error = event.error, |
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533 code = event.code, |
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534 }); |
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535 end |
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536 end, 1); |