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plugins/mod_xmlrpc.lua @ 880:ff4a08d73772
XML-RPC: Set appropriate Content-Type header in HTTP response
| author | Waqas Hussain <waqas20@gmail.com> |
|---|---|
| date | Wed, 04 Mar 2009 22:59:58 +0500 |
| parent | 877:0bababc930dd |
| child | 889:bb959588bbc4 |
| rev | line source |
|---|---|
| 875 | 1 -- Prosody IM v0.3 |
| 2 -- Copyright (C) 2008-2009 Matthew Wild | |
| 3 -- Copyright (C) 2008-2009 Waqas Hussain | |
| 4 -- | |
| 5 -- This project is MIT/X11 licensed. Please see the | |
| 6 -- COPYING file in the source package for more information. | |
| 7 -- | |
| 8 | |
| 9 | |
| 10 module.host = "*" -- Global module | |
| 11 | |
| 12 local httpserver = require "net.httpserver"; | |
| 13 local st = require "util.stanza"; | |
| 14 local pcall = pcall; | |
| 15 local unpack = unpack; | |
| 16 local tostring = tostring; | |
| 17 | |
| 18 local translate_request = require "util.xmlrpc".translate_request; | |
| 19 local create_response = require "util.xmlrpc".create_response; | |
| 20 local create_error_response = require "util.xmlrpc".create_error_response; | |
| 21 | |
| 22 local entity_map = setmetatable({ | |
| 23 ["amp"] = "&"; | |
| 24 ["gt"] = ">"; | |
| 25 ["lt"] = "<"; | |
| 26 ["apos"] = "'"; | |
| 27 ["quot"] = "\""; | |
| 28 }, {__index = function(_, s) | |
| 29 if s:sub(1,1) == "#" then | |
| 30 if s:sub(2,2) == "x" then | |
| 31 return string.char(tonumber(s:sub(3), 16)); | |
| 32 else | |
| 33 return string.char(tonumber(s:sub(2))); | |
| 34 end | |
| 35 end | |
| 36 end | |
| 37 }); | |
| 38 local function xml_unescape(str) | |
| 39 return (str:gsub("&(.-);", entity_map)); | |
| 40 end | |
| 41 local function parse_xml(xml) | |
| 42 local stanza = st.stanza("root"); | |
| 43 local regexp = "<([^>]*)>([^<]*)"; | |
| 44 for elem, text in xml:gmatch(regexp) do | |
| 45 --print("[<"..elem..">|"..text.."]"); | |
| 46 if elem:sub(1,1) == "!" or elem:sub(1,1) == "?" then -- neglect comments and processing-instructions | |
| 47 elseif elem:sub(1,1) == "/" then -- end tag | |
| 48 elem = elem:sub(2); | |
| 49 stanza:up(); -- TODO check for start-end tag name match | |
| 50 elseif elem:sub(-1,-1) == "/" then -- empty tag | |
| 51 elem = elem:sub(1,-2); | |
| 52 stanza:tag(elem):up(); | |
| 53 else -- start tag | |
| 54 stanza:tag(elem); | |
| 55 end | |
| 56 if #text ~= 0 then -- text | |
| 57 stanza:text(xml_unescape(text)); | |
| 58 end | |
| 59 end | |
| 60 return stanza.tags[1]; | |
| 61 end | |
| 62 | |
| 63 local function get_method(method) | |
| 64 return function(...) | |
| 65 return {method = method; args = {...}}; | |
| 66 end | |
| 67 end | |
| 68 | |
| 69 local function handle_xmlrpc_request(method, args) | |
| 70 method = get_method(method); | |
| 71 if not method then return create_error_response(404, "method not found"); end | |
| 72 args = args or {}; | |
| 73 local success, result = pcall(method, unpack(args)); | |
| 74 if success then | |
| 75 success, result = pcall(create_response, result or "nil"); | |
| 76 if success then | |
| 77 return result; | |
| 78 end | |
| 79 return create_error_response(500, "Error in creating response: "..result); | |
| 80 end | |
| 81 return create_error_response(0, result or "nil"); | |
| 82 end | |
| 83 | |
|
877
0bababc930dd
mod_xmlrpc: Handle RPC stanzas sent over XMPP (XEP-0009: Jabber-RPC)
Waqas Hussain <waqas20@gmail.com>
parents:
875
diff
changeset
|
84 local function handle_xmpp_request(origin, stanza) |
| 875 | 85 local query = stanza.tags[1]; |
| 86 if query.name == "query" then | |
| 87 if #query.tags == 1 then | |
| 88 local success, method, args = pcall(translate_request, query.tags[1]); | |
| 89 if success then | |
| 90 local result = handle_xmlrpc_request(method, args); | |
| 91 origin.send(st.reply(stanza):tag('query', {xmlns='jabber:iq:rpc'}):add_child(result)); | |
| 92 else | |
| 93 origin.send(st.error_reply(stanza, "modify", "bad-request", method)); | |
| 94 end | |
| 95 else | |
| 96 origin.send(st.error_reply(stanza, "modify", "bad-request", "No content in XML-RPC request")); | |
| 97 end | |
| 98 else | |
| 99 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); | |
| 100 end | |
| 101 end | |
|
877
0bababc930dd
mod_xmlrpc: Handle RPC stanzas sent over XMPP (XEP-0009: Jabber-RPC)
Waqas Hussain <waqas20@gmail.com>
parents:
875
diff
changeset
|
102 module:add_iq_handler({"c2s", "s2sin"}, "jabber:iq:rpc", handle_xmpp_request); |
|
0bababc930dd
mod_xmlrpc: Handle RPC stanzas sent over XMPP (XEP-0009: Jabber-RPC)
Waqas Hussain <waqas20@gmail.com>
parents:
875
diff
changeset
|
103 module:add_feature("jabber:iq:rpc"); |
| 875 | 104 |
|
880
ff4a08d73772
XML-RPC: Set appropriate Content-Type header in HTTP response
Waqas Hussain <waqas20@gmail.com>
parents:
877
diff
changeset
|
105 local default_headers = { ["Content-Type"] = "text/xml" }; |
| 875 | 106 local function handle_http_request(method, body, request) |
| 107 local stanza = body and parse_xml(body); | |
| 108 if (not stanza) or request.method ~= "POST" then | |
| 109 return "<html><body>You really don't look like an XML-RPC client to me... what do you want?</body></html>"; | |
| 110 end | |
| 111 local success, method, args = pcall(translate_request, stanza); | |
| 112 if success then | |
|
880
ff4a08d73772
XML-RPC: Set appropriate Content-Type header in HTTP response
Waqas Hussain <waqas20@gmail.com>
parents:
877
diff
changeset
|
113 return { headers = default_headers; body = tostring(handle_xmlrpc_request(method, args)) }; |
| 875 | 114 end |
|
880
ff4a08d73772
XML-RPC: Set appropriate Content-Type header in HTTP response
Waqas Hussain <waqas20@gmail.com>
parents:
877
diff
changeset
|
115 return "<html><body>Error parsing XML-RPC request: "..tostring(method).."</body></html>"; |
| 875 | 116 end |
| 117 httpserver.new{ port = 9000, base = "xmlrpc", handler = handle_http_request } |
