prosody
495de404a8ae
util/xml.lua

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util/xml.lua @ 7567:495de404a8ae

ejabberdsql2prosody: rename variable 'host' to prevent shadowing upvalue [luacheck] Functions roster(), roster_pending(), roster_group(), private_storage() and offline_msg() have argument named "host", which used to shadow upvalue of this variable before this change. Instead of renaming this argument, let's rename the variable to match what the script says in usage: Usage: ejabberdsql2prosody.lua filename.txt hostname
author Anton Shestakov <av6@dwimlabs.net>
date Fri, 12 Aug 2016 13:44:47 +0800
parent 6777:5de6b93d0190
child 6978:30c96a5db360
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rev   line source
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cc487921746b util.xml: Initial commit; exposes parse(), which is now the canonical way to convert a string to a stanza.
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1
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2 local st = require "util.stanza";
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3 local lxp = require "lxp";
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5 local _ENV = nil;
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7 local parse_xml = (function()
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8 local ns_prefixes = {
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9 ["http://www.w3.org/XML/1998/namespace"] = "xml";
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10 };
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11 local ns_separator = "\1";
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12 local ns_pattern = "^([^"..ns_separator.."]*)"..ns_separator.."?(.*)$";
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13 return function(xml)
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14 --luacheck: ignore 212/self
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15 local handler = {};
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16 local stanza = st.stanza("root");
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17 function handler:StartElement(tagname, attr)
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18 local curr_ns,name = tagname:match(ns_pattern);
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19 if name == "" then
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20 curr_ns, name = "", curr_ns;
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21 end
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22 if curr_ns ~= "" then
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23 attr.xmlns = curr_ns;
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24 end
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25 for i=1,#attr do
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26 local k = attr[i];
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27 attr[i] = nil;
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28 local ns, nm = k:match(ns_pattern);
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29 if nm ~= "" then
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30 ns = ns_prefixes[ns];
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31 if ns then
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32 attr[ns..":"..nm] = attr[k];
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33 attr[k] = nil;
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34 end
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35 end
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36 end
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37 stanza:tag(name, attr);
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38 end
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39 function handler:CharacterData(data)
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40 stanza:text(data);
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41 end
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42 function handler:EndElement()
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43 stanza:up();
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44 end
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45 local parser = lxp.new(handler, "\1");
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46 local ok, err, line, col = parser:parse(xml);
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47 if ok then ok, err, line, col = parser:parse(); end
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48 --parser:close();
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49 if ok then
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50 return stanza.tags[1];
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51 else
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52 return ok, err.." (line "..line..", col "..col..")";
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53 end
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54 end;
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55 end)();
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56
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57 return {
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58 parse = parse_xml;
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59 };