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annotate mod_rest/mod_rest.lua @ 4014:1b68954a743a

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mod_csi_muc_priorities: Report reason for importance decision
author Kim Alvefur <zash@zash.se>
date Sat, 09 May 2020 21:14:59 +0200
parents ae5ac41c391d
children 04c11b652aeb
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1 -- RESTful API
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2 --
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3 -- Copyright (c) 2019-2020 Kim Alvefur
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4 --
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5 -- This file is MIT/X11 licensed.
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6
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7 local encodings = require "util.encodings";
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8 local base64 = encodings.base64;
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9 local errors = require "util.error";
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10 local http = require "net.http";
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11 local id = require "util.id";
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12 local jid = require "util.jid";
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13 local json = require "util.json";
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14 local st = require "util.stanza";
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15 local um = require "core.usermanager";
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16 local xml = require "util.xml";
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17
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18 local jsonmap = module:require"jsonmap";
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19
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20 local tokens = module:depends("tokenauth");
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21
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22 local auth_mechanisms = module:get_option_set("rest_auth_mechanisms", { "Basic", "Bearer" });
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23
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24 local www_authenticate_header;
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25 do
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26 local header, realm = {}, module.host.."/"..module.name;
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27 for mech in auth_mechanisms do
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28 header[#header+1] = ("%s realm=%q"):format(mech, realm);
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29 end
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30 www_authenticate_header = table.concat(header, ", ");
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31 end
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32
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33 -- Bearer token
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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 local function parse(mimetype, data)
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62 mimetype = mimetype and mimetype:match("^[^; ]*");
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63 if mimetype == "application/xmpp+xml" then
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64 return xml.parse(data);
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65 elseif mimetype == "application/json" then
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66 local parsed, err = json.decode(data);
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67 if not parsed then
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68 return parsed, err;
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69 end
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70 return jsonmap.json2st(parsed);
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71 elseif mimetype == "application/x-www-form-urlencoded"then
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72 local parsed = http.formdecode(data);
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73 if type(parsed) == "string" then
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74 return parse("text/plain", parsed);
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75 end
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76 for i = #parsed, 1, -1 do
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77 parsed[i] = nil;
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78 end
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79 return jsonmap.json2st(parsed);
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80 elseif mimetype == "text/plain" then
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81 return st.message({ type = "chat" }, data);
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82 end
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83 return nil, "unknown-payload-type";
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84 end
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85
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86 local function decide_type(accept, supported_types)
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87 -- assumes the accept header is sorted
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88 local ret = supported_types[1];
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89 for i = 2, #supported_types do
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90 if (accept:find(supported_types[i], 1, true) or 1000) < (accept:find(ret, 1, true) or 1000) then
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91 ret = supported_types[i];
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92 end
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93 end
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94 return ret;
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95 end
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96
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97 local supported_inputs = {
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98 "application/xmpp+xml",
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99 "application/json",
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100 "application/x-www-form-urlencoded",
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101 "text/plain",
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102 };
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103
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104 local supported_outputs = {
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105 "application/xmpp+xml",
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106 "application/json",
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107 };
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108
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109 local function encode(type, s)
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110 if type == "application/json" then
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111 return json.encode(jsonmap.st2json(s));
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112 elseif type == "text/plain" then
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113 return s:get_child_text("body") or "";
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114 end
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115 return tostring(s);
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116 end
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117
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118 local post_errors = {
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119 noauthz = { code = 401, type = "auth", condition = "not-authorized", text = "No credentials provided" },
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120 unauthz = { code = 403, type = "auth", condition = "not-authorized", text = "Credentials not accepted" },
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121 parse = { code = 400, condition = "not-well-formed", text = "Failed to parse payload", },
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122 xmlns = { code = 422, condition = "invalid-namespace", text = "'xmlns' attribute must be empty", },
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123 name = { code = 422, condition = "unsupported-stanza-type", text = "Invalid stanza, must be 'message', 'presence' or 'iq'.", },
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124 to = { code = 422, condition = "improper-addressing", text = "Invalid destination JID", },
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125 from = { code = 422, condition = "invalid-from", text = "Invalid source JID", },
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126 post_auth = { code = 403, condition = "not-authorized", text = "Not authorized to send stanza with requested 'from'", },
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127 iq_type = { code = 422, condition = "invalid-xml", text = "'iq' stanza must be of type 'get' or 'set'", },
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128 iq_tags = { code = 422, condition = "bad-format", text = "'iq' stanza must have exactly one child tag", },
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129 };
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130
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131 local function handle_post(event)
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132 local request, response = event.request, event.response;
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diff changeset
133 local from;
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parents: 3909
diff changeset
134 local origin;
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Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
135
3802
f88e07630e4e mod_rest: Add support for simple Bearer token auth
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parents: 3801
diff changeset
136 if not request.headers.authorization then
3910
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parents: 3909
diff changeset
137 response.headers.www_authenticate = www_authenticate_header;
3971
ae5ac41c391d mod_rest: Improve auth error reporting
Kim Alvefur <zash@zash.se>
parents: 3933
diff changeset
138 return errors.new("noauthz", nil, post_errors);
3876
75b330d4fa6f mod_rest: Add support for HTTP Basic username and password authentication
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parents: 3874
diff changeset
139 else
3910
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parents: 3909
diff changeset
140 origin = check_credentials(request);
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parents: 3909
diff changeset
141 if not origin then
3971
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parents: 3933
diff changeset
142 return errors.new("unauthz", nil, post_errors);
3876
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parents: 3874
diff changeset
143 end
3910
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parents: 3909
diff changeset
144 from = jid.join(origin.username, origin.host, origin.resource);
3802
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parents: 3801
diff changeset
145 end
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
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parents: 3807
diff changeset
146 local payload, err = parse(request.headers.content_type, request.body);
3794
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parents:
diff changeset
147 if not payload then
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
148 -- parse fail
3930
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parents: 3929
diff changeset
149 return errors.new("parse", { error = err, type = request.headers.content_type, data = request.body, }, post_errors);
3794
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parents:
diff changeset
150 end
3801
d59fb4dcf100 mod_rest: Verify that @xmlns is left empty
Kim Alvefur <zash@zash.se>
parents: 3799
diff changeset
151 if payload.attr.xmlns then
3930
d5dafd617cd6 mod_rest: Break out POST errors into a registry
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parents: 3929
diff changeset
152 return errors.new("xmlns", nil, post_errors);
3805
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parents: 3804
diff changeset
153 elseif payload.name ~= "message" and payload.name ~= "presence" and payload.name ~= "iq" then
3930
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parents: 3929
diff changeset
154 return errors.new("name", nil, post_errors);
3801
d59fb4dcf100 mod_rest: Verify that @xmlns is left empty
Kim Alvefur <zash@zash.se>
parents: 3799
diff changeset
155 end
3794
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parents:
diff changeset
156 local to = jid.prep(payload.attr.to);
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parents:
diff changeset
157 if not to then
3930
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parents: 3929
diff changeset
158 return errors.new("to", nil, post_errors);
3794
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parents:
diff changeset
159 end
3910
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parents: 3909
diff changeset
160 if payload.attr.from then
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Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
161 local requested_from = jid.prep(payload.attr.from);
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parents: 3909
diff changeset
162 if not requested_from then
3930
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parents: 3929
diff changeset
163 return errors.new("from", nil, post_errors);
3794
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parents:
diff changeset
164 end
3910
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Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
165 if jid.compare(requested_from, from) then
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Matthew Wild <mwild1@gmail.com>
parents: 3909
diff changeset
166 from = requested_from;
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parents: 3909
diff changeset
167 else
3930
d5dafd617cd6 mod_rest: Break out POST errors into a registry
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parents: 3929
diff changeset
168 return errors.new("from_auth", nil, post_errors);
3794
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parents:
diff changeset
169 end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
170 end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
171 payload.attr = {
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parents:
diff changeset
172 from = from,
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
173 to = to,
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
174 id = payload.attr.id or id.medium(),
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
175 type = payload.attr.type,
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
176 ["xml:lang"] = payload.attr["xml:lang"],
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
177 };
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
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parents: 3802
diff changeset
178 module:log("debug", "Received[rest]: %s", payload:top_tag());
3929
bd687d586a8a mod_rest: Separate lists of mediatypes for input, output and errors
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parents: 3926
diff changeset
179 local send_type = decide_type((request.headers.accept or "") ..",".. request.headers.content_type, supported_outputs)
3794
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parents:
diff changeset
180 if payload.name == "iq" then
3910
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parents: 3909
diff changeset
181 function origin.send(stanza)
3926
f77ae9685eb6 mod_rest: Fix routing to self-jid (thanks jonas’)
Kim Alvefur <zash@zash.se>
parents: 3925
diff changeset
182 module:send(stanza);
3910
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parents: 3909
diff changeset
183 end
3794
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
184 if payload.attr.type ~= "get" and payload.attr.type ~= "set" then
3930
d5dafd617cd6 mod_rest: Break out POST errors into a registry
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parents: 3929
diff changeset
185 return errors.new("iq_type", nil, post_errors);
3832
0d4146cf9fbc mod_rest: Enforce single child policy for outgoing it stanzas
Kim Alvefur <zash@zash.se>
parents: 3825
diff changeset
186 elseif #payload.tags ~= 1 then
3930
d5dafd617cd6 mod_rest: Break out POST errors into a registry
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parents: 3929
diff changeset
187 return errors.new("iq_tags", nil, post_errors);
3794
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parents:
diff changeset
188 end
3910
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parents: 3909
diff changeset
189 return module:send_iq(payload, origin):next(
3794
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parents:
diff changeset
190 function (result)
3803
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parents: 3802
diff changeset
191 module:log("debug", "Sending[rest]: %s", result.stanza:top_tag());
3811
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parents: 3810
diff changeset
192 response.headers.content_type = send_type;
3812
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
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parents: 3811
diff changeset
193 return encode(send_type, result.stanza);
3794
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parents:
diff changeset
194 end,
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parents:
diff changeset
195 function (error)
3909
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parents: 3887
diff changeset
196 if not errors.is_err(error) then
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Matthew Wild <mwild1@gmail.com>
parents: 3887
diff changeset
197 module:log("error", "Uncaught native error: %s", error);
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Matthew Wild <mwild1@gmail.com>
parents: 3887
diff changeset
198 return select(2, errors.coerce(nil, error));
eb27e51cf2c9 mod_rest: Handle uncaught native errors correctly
Matthew Wild <mwild1@gmail.com>
parents: 3887
diff changeset
199 elseif error.context and error.context.stanza then
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
200 response.headers.content_type = send_type;
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
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parents: 3802
diff changeset
201 module:log("debug", "Sending[rest]: %s", error.context.stanza:top_tag());
3812
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
202 return encode(send_type, error.context.stanza);
3794
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
203 else
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
204 return error;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
205 end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
206 end);
3805
683b06c0348f mod_rest: Validate stanza kind earlier
Kim Alvefur <zash@zash.se>
parents: 3804
diff changeset
207 else
3796
d1ad10b76b00 mod_rest: Catch one (1) reply to a POST-ed stanza from an internal source
Kim Alvefur <zash@zash.se>
parents: 3795
diff changeset
208 function origin.send(stanza)
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
209 module:log("debug", "Sending[rest]: %s", stanza:top_tag());
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
210 response.headers.content_type = send_type;
3812
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
211 response:send(encode(send_type, stanza));
3796
d1ad10b76b00 mod_rest: Catch one (1) reply to a POST-ed stanza from an internal source
Kim Alvefur <zash@zash.se>
parents: 3795
diff changeset
212 return true;
d1ad10b76b00 mod_rest: Catch one (1) reply to a POST-ed stanza from an internal source
Kim Alvefur <zash@zash.se>
parents: 3795
diff changeset
213 end
3814
0dede5b0ab27 mod_rest: Fix return status when sending and forgetting
Kim Alvefur <zash@zash.se>
parents: 3813
diff changeset
214 module:send(payload, origin);
0dede5b0ab27 mod_rest: Fix return status when sending and forgetting
Kim Alvefur <zash@zash.se>
parents: 3813
diff changeset
215 return 202;
3794
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
216 end
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
217 end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
218
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
219 -- Handle stanzas submitted via HTTP
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
220 module:depends("http");
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
221 module:provides("http", {
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
222 route = {
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
223 POST = handle_post;
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
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parents:
diff changeset
224 };
4b258329e6e4 mod_rest: Initial commit of another RESTful API module
Kim Alvefur <zash@zash.se>
parents:
diff changeset
225 });
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
226
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
227 -- Forward stanzas from XMPP to HTTP and return any reply
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
228 local rest_url = module:get_option_string("rest_callback_url", nil);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
229 if rest_url then
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
230 local send_type = module:get_option_string("rest_callback_content_type", "application/xmpp+xml");
3813
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
231 if send_type == "json" then
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
232 send_type = "application/json";
aa1ad69c7c10 mod_rest: Add JSON support
Kim Alvefur <zash@zash.se>
parents: 3812
diff changeset
233 end
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
234
3862
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
235 module:set_status("info", "Not yet connected");
3861
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
236 http.request(rest_url, {
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
237 method = "OPTIONS",
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
238 }, function (body, code, response)
3862
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
239 if code == 0 then
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
240 return module:log_status("error", "Could not connect to callback URL %q: %s", rest_url, body);
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
241 else
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
242 module:set_status("info", "Connected");
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
243 end
3861
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
244 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
245 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
246 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
247 end
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
248 end);
ede3d1724dd1 mod_rest: Attempt to auto-discover data type wanted by callback
Kim Alvefur <zash@zash.se>
parents: 3858
diff changeset
249
3797
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
250 local code2err = {
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
251 [400] = { condition = "bad-request"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
252 [401] = { condition = "not-authorized"; type = "auth" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
253 [402] = { condition = "not-authorized"; type = "auth" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
254 [403] = { condition = "forbidden"; type = "auth" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
255 [404] = { condition = "item-not-found"; type = "cancel" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
256 [406] = { condition = "not-acceptable"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
257 [408] = { condition = "remote-server-timeout"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
258 [409] = { condition = "conflict"; type = "cancel" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
259 [410] = { condition = "gone"; type = "cancel" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
260 [411] = { condition = "bad-request"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
261 [412] = { condition = "bad-request"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
262 [413] = { condition = "resource-constraint"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
263 [414] = { condition = "resource-constraint"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
264 [415] = { condition = "bad-request"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
265 [429] = { condition = "resource-constraint"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
266 [431] = { condition = "resource-constraint"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
267
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
268 [500] = { condition = "internal-server-error"; type = "cancel" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
269 [501] = { condition = "feature-not-implemented"; type = "modify" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
270 [502] = { condition = "remote-server-timeout"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
271 [503] = { condition = "service-unavailable"; type = "cancel" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
272 [504] = { condition = "remote-server-timeout"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
273 [507] = { condition = "resource-constraint"; type = "wait" };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
274 };
ed5d7586a61e mod_rest: Map various HTTP status codes to XMPP stanza errors
Kim Alvefur <zash@zash.se>
parents: 3796
diff changeset
275
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
276 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
277 local stanza, origin = event.stanza, event.origin;
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
278 local reply_needed = stanza.name == "iq";
3798
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
279 local receipt;
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
280
3824
a0b8ec44a36b mod_rest: Stanzas of type error don't need a reply
Kim Alvefur <zash@zash.se>
parents: 3821
diff changeset
281 if stanza.attr.type == "error" then
a0b8ec44a36b mod_rest: Stanzas of type error don't need a reply
Kim Alvefur <zash@zash.se>
parents: 3821
diff changeset
282 reply_needed = false;
a0b8ec44a36b mod_rest: Stanzas of type error don't need a reply
Kim Alvefur <zash@zash.se>
parents: 3821
diff changeset
283 end
a0b8ec44a36b mod_rest: Stanzas of type error don't need a reply
Kim Alvefur <zash@zash.se>
parents: 3821
diff changeset
284
3798
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
285 if stanza.name == "message" and stanza.attr.id and stanza:get_child("urn:xmpp:receipts", "request") then
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
286 reply_needed = true;
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
287 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
288 end
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
289
3812
f027b8b1e794 mod_rest: Factor out serialization of outgoing stanzas
Kim Alvefur <zash@zash.se>
parents: 3811
diff changeset
290 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
291
a1f1f703d604 mod_rest: Allow collection of original stanza after sending HTTP request
Kim Alvefur <zash@zash.se>
parents: 3798
diff changeset
292 -- 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
293 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
294
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
295 module:log("debug", "Sending[rest]: %s", 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
296 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
297 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
298 headers = {
3811
eb25110696cd mod_rest: Factor out response content type selection
Kim Alvefur <zash@zash.se>
parents: 3810
diff changeset
299 ["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
300 ["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
301 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
302 },
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
303 }, function (body, code, response)
3862
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
304 if code == 0 then
3864
d845475c75f3 mod_rest: Process results even on internal errors with HTTP request
Kim Alvefur <zash@zash.se>
parents: 3862
diff changeset
305 module:log_status("error", "Could not connect to callback URL %q: %s", rest_url, body);
3866
c0df50ce96f0 mod_rest: Handle internal http request errors early and then return
Kim Alvefur <zash@zash.se>
parents: 3865
diff changeset
306 origin.send(st.error_reply(stanza, "wait", "recipient-unavailable", body));
c0df50ce96f0 mod_rest: Handle internal http request errors early and then return
Kim Alvefur <zash@zash.se>
parents: 3865
diff changeset
307 return;
3862
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
308 else
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
309 module:set_status("info", "Connected");
3b6b8dcff78e mod_rest: Log connectivity problems via module status API
Kim Alvefur <zash@zash.se>
parents: 3861
diff changeset
310 end
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
311 local reply;
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
312
3867
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
313 if code == 202 or code == 204 then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
314 if not reply_needed then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
315 -- Delivered, no reply
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
316 return;
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
317 end
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
318 else
3867
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
319 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
320 if not parsed then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
321 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
322 elseif parsed.name ~= stanza.name then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
323 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
324 else
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
325 parsed.attr = {
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
326 from = stanza.attr.to,
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
327 to = stanza.attr.from,
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
328 id = parsed.attr.id or id.medium();
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
329 type = parsed.attr.type,
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
330 ["xml:lang"] = parsed.attr["xml:lang"],
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
331 };
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
332 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
333 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
334 end
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
335 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
336 parsed.attr.type = "error";
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
337 end
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
338 if parsed.attr.type == "error" then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
339 parsed.attr.id = stanza.attr.id;
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
340 elseif parsed.name == "iq" then
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
341 parsed.attr.id = stanza.attr.id;
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
342 parsed.attr.type = "result";
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
343 end
839224be5299 mod_rest: Skip attempting parse empty response
Kim Alvefur <zash@zash.se>
parents: 3866
diff changeset
344 reply = parsed;
3821
11272a3233ce mod_rest: Fix replying to groupchat messages
Kim Alvefur <zash@zash.se>
parents: 3816
diff changeset
345 end
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
346 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
347
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
348 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
349 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
350 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
351 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
352 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
353 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
354 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
355 -- 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
356 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
357 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
358 elseif code_hundreds == 400 then
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
359 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
360 elseif code_hundreds == 500 then
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
361 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
362 else
3810
91ff86fc3b20 mod_rest: Factor out payload parsing
Kim Alvefur <zash@zash.se>
parents: 3807
diff changeset
363 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
364 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
365 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
366
3798
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
367 if receipt then
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
368 reply:add_direct_child(receipt);
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
369 end
9b4fd2553365 mod_rest: Handle receipt requests on message stanzas
Kim Alvefur <zash@zash.se>
parents: 3797
diff changeset
370
3803
dc2b5a412286 mod_rest: Log sent and received stanzas in style of mod_c2s etc
Kim Alvefur <zash@zash.se>
parents: 3802
diff changeset
371 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
372
3795
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
373 origin.send(reply);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
374 end);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
375
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
376 return true;
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
377 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
378
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
379 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
380 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
381 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
382 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
383 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
384 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
385 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
386 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
387 module:hook("message/host", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
388 module:hook("presence/host", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
389 else
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
390 -- Don't override everything on normal VirtualHosts
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
391 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
392 module:hook("message/host", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
393 module:hook("presence/host", handle_stanza, -1);
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
394 end
f51308fcba83 mod_rest: Allow specifying a webhook/callback to handle incoming stanzas
Kim Alvefur <zash@zash.se>
parents: 3794
diff changeset
395 end
3842
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Kim Alvefur <zash@zash.se>
parents: 3832
diff changeset
396
3929
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Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
397 local supported_errors = {
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Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
398 "text/html",
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Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
399 "application/xmpp+xml",
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Kim Alvefur <zash@zash.se>
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400 "application/json",
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Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
401 };
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Kim Alvefur <zash@zash.se>
parents: 3926
diff changeset
402
3873
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Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
403 local http_server = require "net.http.server";
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Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
404 module:hook_object_event(http_server, "http-error", function (event)
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Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
405 local request, response = event.request, event.response;
3931
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Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
406 local response_as = decide_type(request and request.headers.accept or "", supported_errors);
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Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
407 if response_as == "application/xmpp+xml" then
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Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
408 if response then
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
409 response.headers.content_type = "application/xmpp+xml";
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
410 end
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
411 local stream_error = st.stanza("error", { xmlns = "http://etherx.jabber.org/streams" });
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
412 if event.error then
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
413 stream_error:tag(event.error.condition, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }):up();
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
414 if event.error.text then
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
415 stream_error:text_tag("text", event.error.text, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' });
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
416 end
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
417 end
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
418 return tostring(stream_error);
2e8b284ac8b3 mod_rest: Add an XML error formatter (fixes #1499)
Kim Alvefur <zash@zash.se>
parents: 3930
diff changeset
419 elseif response_as == "application/json" then
3873
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Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
420 if response then
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
421 response.headers.content_type = "application/json";
3842
501c7edc8c37 mod_rest: Encode errors as JSON
Kim Alvefur <zash@zash.se>
parents: 3832
diff changeset
422 end
3873
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
423 return json.encode({
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
424 type = "error",
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
425 error = event.error,
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Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
426 code = event.code,
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
427 });
fea0c1bed1a0 mod_rest: Back out 513a8a7fab41
Kim Alvefur <zash@zash.se>
parents: 3872
diff changeset
428 end
3933
93147b89ea67 mod_rest: Avoid interfering with mod_http_oauth2 errors (fixes #1500)
Kim Alvefur <zash@zash.se>
parents: 3931
diff changeset
429 end, 1);