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core/xmlhandlers.lua @ 1995:03ecc636af1e
Merge with trunk.
author | Waqas Hussain <waqas20@gmail.com> |
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date | Sun, 18 Oct 2009 05:19:40 +0500 |
parent | 1523:841d61be198f |
child | 2037:a919511c45ac |
rev | line source |
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1 -- Prosody IM |
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2 -- Copyright (C) 2008-2009 Matthew Wild |
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3 -- Copyright (C) 2008-2009 Waqas Hussain |
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4 -- |
758 | 5 -- This project is MIT/X11 licensed. Please see the |
6 -- COPYING file in the source package for more information. | |
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7 -- |
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8 |
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9 |
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10 |
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11 require "util.stanza" |
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12 |
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13 local st = stanza; |
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14 local tostring = tostring; |
148 | 15 local pairs = pairs; |
16 local ipairs = ipairs; | |
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17 local t_insert = table.insert; |
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18 local t_concat = table.concat; |
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19 |
145 | 20 local default_log = require "util.logger".init("xmlhandlers"); |
21 | |
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22 local error = error; |
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23 |
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24 module "xmlhandlers" |
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25 |
148 | 26 local ns_prefixes = { |
27 ["http://www.w3.org/XML/1998/namespace"] = "xml"; | |
28 } | |
29 | |
331 | 30 function init_xmlhandlers(session, stream_callbacks) |
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31 local ns_stack = { "" }; |
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32 local curr_ns, name = ""; |
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33 local curr_tag; |
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34 local chardata = {}; |
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35 local xml_handlers = {}; |
145 | 36 local log = session.log or default_log; |
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37 |
331 | 38 local cb_streamopened = stream_callbacks.streamopened; |
39 local cb_streamclosed = stream_callbacks.streamclosed; | |
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40 local cb_error = stream_callbacks.error or function (session, e) error("XML stream error: "..tostring(e)); end; |
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41 local cb_handlestanza = stream_callbacks.handlestanza; |
331 | 42 |
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43 local stream_tag = stream_callbacks.stream_tag; |
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44 local stream_default_ns = stream_callbacks.default_ns; |
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45 |
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46 local stanza |
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47 function xml_handlers:StartElement(tagname, attr) |
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48 if stanza and #chardata > 0 then |
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49 -- We have some character data in the buffer |
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50 stanza:text(t_concat(chardata)); |
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51 chardata = {}; |
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52 end |
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53 local curr_ns,name = tagname:match("^(.-)|?([^%|]-)$"); |
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54 if not name then |
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55 curr_ns, name = "", curr_ns; |
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56 end |
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57 |
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58 if curr_ns ~= stream_default_ns then |
148 | 59 attr.xmlns = curr_ns; |
60 end | |
61 | |
62 -- FIXME !!!!! | |
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63 for i=1,#attr do |
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64 local k = attr[i]; |
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65 attr[i] = nil; |
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66 local ns, nm = k:match("^([^|]+)|?([^|]-)$") |
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67 if ns and nm then |
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68 ns = ns_prefixes[ns]; |
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69 if ns then |
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70 attr[ns..":"..nm] = attr[k]; |
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71 attr[k] = nil; |
148 | 72 end |
73 end | |
74 end | |
145 | 75 |
76 if not stanza then --if we are not currently inside a stanza | |
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77 if session.notopen then |
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78 if tagname == stream_tag then |
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79 if cb_streamopened then |
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80 cb_streamopened(session, attr); |
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81 end |
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82 else |
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83 -- Garbage before stream? |
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84 cb_error(session, "no-stream"); |
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85 end |
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86 return; |
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87 end |
38 | 88 if curr_ns == "jabber:client" and name ~= "iq" and name ~= "presence" and name ~= "message" then |
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89 cb_error(session, "invalid-top-level-element"); |
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90 end |
145 | 91 |
331 | 92 stanza = st.stanza(name, attr); |
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93 curr_tag = stanza; |
145 | 94 else -- we are inside a stanza, so add a tag |
148 | 95 attr.xmlns = nil; |
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96 if curr_ns ~= stream_default_ns then |
148 | 97 attr.xmlns = curr_ns; |
98 end | |
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99 stanza:tag(name, attr); |
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100 end |
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101 end |
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102 function xml_handlers:CharacterData(data) |
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103 if stanza then |
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104 t_insert(chardata, data); |
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105 end |
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106 end |
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107 function xml_handlers:EndElement(tagname) |
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108 curr_ns,name = tagname:match("^(.-)|?([^%|]-)$"); |
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109 if not name then |
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110 curr_ns, name = "", curr_ns; |
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111 end |
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112 if (not stanza) or (#stanza.last_add > 0 and name ~= stanza.last_add[#stanza.last_add].name) then |
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113 if tagname == stream_tag then |
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114 if cb_streamclosed then |
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115 cb_streamclosed(session); |
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116 end |
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117 return; |
145 | 118 elseif name == "error" then |
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119 cb_error(session, "stream-error", stanza); |
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120 else |
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121 cb_error(session, "parse-error", "unexpected-element-close", name); |
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122 end |
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123 end |
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124 if #chardata > 0 then |
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125 -- We have some character data in the buffer |
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126 stanza:text(t_concat(chardata)); |
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127 chardata = {}; |
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128 end |
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129 -- Complete stanza |
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130 if #stanza.last_add == 0 then |
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131 cb_handlestanza(session, stanza); |
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132 stanza = nil; |
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133 else |
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134 stanza:up(); |
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135 end |
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136 end |
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137 return xml_handlers; |
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138 end |
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139 |
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140 return init_xmlhandlers; |