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plugins/mod_xmlrpc.lua @ 2463:d9ff0190eb4a
xmlhandlers: Define ns_separator and ns_pattern to save repeating it in literal form throughout the file
| author | Matthew Wild <mwild1@gmail.com> |
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| date | Mon, 18 Jan 2010 19:00:18 +0000 |
| parent | 1640:726ac98306d8 |
| child | 2923:b7049746bd29 |
| rev | line source |
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1 -- Prosody IM |
| 875 | 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; | |
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17 local is_admin = require "core.usermanager".is_admin; |
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18 local jid_split = require "util.jid".split; |
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19 local jid_bare = require "util.jid".bare; |
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20 local b64_decode = require "util.encodings".base64.decode; |
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21 local get_method = require "core.objectmanager".get_object; |
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22 local validate_credentials = require "core.usermanager".validate_credentials; |
| 875 | 23 |
| 24 local translate_request = require "util.xmlrpc".translate_request; | |
| 25 local create_response = require "util.xmlrpc".create_response; | |
| 26 local create_error_response = require "util.xmlrpc".create_error_response; | |
| 27 | |
| 28 local entity_map = setmetatable({ | |
| 29 ["amp"] = "&"; | |
| 30 ["gt"] = ">"; | |
| 31 ["lt"] = "<"; | |
| 32 ["apos"] = "'"; | |
| 33 ["quot"] = "\""; | |
| 34 }, {__index = function(_, s) | |
| 35 if s:sub(1,1) == "#" then | |
| 36 if s:sub(2,2) == "x" then | |
| 37 return string.char(tonumber(s:sub(3), 16)); | |
| 38 else | |
| 39 return string.char(tonumber(s:sub(2))); | |
| 40 end | |
| 41 end | |
| 42 end | |
| 43 }); | |
| 44 local function xml_unescape(str) | |
| 45 return (str:gsub("&(.-);", entity_map)); | |
| 46 end | |
| 47 local function parse_xml(xml) | |
| 48 local stanza = st.stanza("root"); | |
| 49 local regexp = "<([^>]*)>([^<]*)"; | |
| 50 for elem, text in xml:gmatch(regexp) do | |
| 51 --print("[<"..elem..">|"..text.."]"); | |
| 52 if elem:sub(1,1) == "!" or elem:sub(1,1) == "?" then -- neglect comments and processing-instructions | |
| 53 elseif elem:sub(1,1) == "/" then -- end tag | |
| 54 elem = elem:sub(2); | |
| 55 stanza:up(); -- TODO check for start-end tag name match | |
| 56 elseif elem:sub(-1,-1) == "/" then -- empty tag | |
| 57 elem = elem:sub(1,-2); | |
| 58 stanza:tag(elem):up(); | |
| 59 else -- start tag | |
| 60 stanza:tag(elem); | |
| 61 end | |
| 62 if #text ~= 0 then -- text | |
| 63 stanza:text(xml_unescape(text)); | |
| 64 end | |
| 65 end | |
| 66 return stanza.tags[1]; | |
| 67 end | |
| 68 | |
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69 local function handle_xmlrpc_request(jid, method, args) |
| 1590 | 70 local is_secure_call = (method:sub(1,7) == "secure/"); |
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71 if not is_admin(jid) and not is_secure_call then |
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72 return create_error_response(401, "not authorized"); |
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73 end |
| 875 | 74 method = get_method(method); |
| 75 if not method then return create_error_response(404, "method not found"); end | |
| 76 args = args or {}; | |
| 1590 | 77 if is_secure_call then table.insert(args, 1, jid); end |
| 875 | 78 local success, result = pcall(method, unpack(args)); |
| 79 if success then | |
| 80 success, result = pcall(create_response, result or "nil"); | |
| 81 if success then | |
| 82 return result; | |
| 83 end | |
| 84 return create_error_response(500, "Error in creating response: "..result); | |
| 85 end | |
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86 return create_error_response(0, tostring(result):gsub("^[^:]+:%d+: ", "")); |
| 875 | 87 end |
| 88 | |
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89 local function handle_xmpp_request(origin, stanza) |
| 875 | 90 local query = stanza.tags[1]; |
| 91 if query.name == "query" then | |
| 92 if #query.tags == 1 then | |
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93 local success, method, args = pcall(translate_request, query.tags[1]); |
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94 if success then |
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95 local result = handle_xmlrpc_request(jid_bare(stanza.attr.from), method, args); |
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96 origin.send(st.reply(stanza):tag('query', {xmlns='jabber:iq:rpc'}):add_child(result)); |
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97 else |
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98 origin.send(st.error_reply(stanza, "modify", "bad-request", method)); |
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99 end |
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100 else origin.send(st.error_reply(stanza, "modify", "bad-request", "No content in XML-RPC request")); end |
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101 else origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); end |
| 875 | 102 end |
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103 module:add_iq_handler({"c2s", "s2sin"}, "jabber:iq:rpc", handle_xmpp_request); |
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104 module:add_feature("jabber:iq:rpc"); |
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105 -- TODO add <identity category='automation' type='rpc'/> to disco replies |
| 875 | 106 |
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107 local default_headers = { ['Content-Type'] = 'text/xml' }; |
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108 local unauthorized_response = { status = '401 UNAUTHORIZED', headers = {['Content-Type']='text/html', ['WWW-Authenticate']='Basic realm="WallyWorld"'}; body = "<html><body>Authentication required</body></html>"; }; |
| 875 | 109 local function handle_http_request(method, body, request) |
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110 -- authenticate user |
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111 local username, password = b64_decode(request['authorization'] or ''):gmatch('([^:]*):(.*)')(); -- TODO digest auth |
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112 local node, host = jid_split(username); |
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113 if not validate_credentials(host, node, password) then |
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114 return unauthorized_response; |
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115 end |
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116 -- parse request |
| 875 | 117 local stanza = body and parse_xml(body); |
| 118 if (not stanza) or request.method ~= "POST" then | |
| 119 return "<html><body>You really don't look like an XML-RPC client to me... what do you want?</body></html>"; | |
| 120 end | |
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121 -- execute request |
| 875 | 122 local success, method, args = pcall(translate_request, stanza); |
| 123 if success then | |
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124 return { headers = default_headers; body = tostring(handle_xmlrpc_request(node.."@"..host, method, args)) }; |
| 875 | 125 end |
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126 return "<html><body>Error parsing XML-RPC request: "..tostring(method).."</body></html>"; |
| 875 | 127 end |
| 128 httpserver.new{ port = 9000, base = "xmlrpc", handler = handle_http_request } |
