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5
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1
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2 local st = require "util.stanza";
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3 local httpserver = require "net.httpserver";
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4 local uuid_new = require "util.uuid".generate;
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5
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6 local os_time = os.time;
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7
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8 local base_url;
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9
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10 local pastes = {};
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11
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12 local xmlns_xhtmlim = "http://jabber.org/protocol/xhtml-im";
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13 local xmlns_xhtml = "http://www.w3.org/1999/xhtml";
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14
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15 local function pastebin_message(text)
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16 local uuid = uuid_new();
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17 pastes[uuid] = { text = text, time = os_time() };
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18 return base_url..uuid;
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19 end
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20
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21 function handle_request(method, body, request)
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22 local pasteid = request.url.path:match("[^/]+$");
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23 if not pasteid or not pastes[pasteid] then
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24 return "Invalid paste id, perhaps it expired?";
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25 end
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26
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27 --module:log("debug", "Received request, replying: %s", pastes[pasteid].text);
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28
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29 return pastes[pasteid].text;
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30 end
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31
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32 function check_message(data)
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33 local origin, stanza = data.origin, data.stanza;
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34
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35 local body, bodyindex, htmlindex;
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36 for k,v in ipairs(stanza) do
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37 if v.name == "body" then
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38 body, bodyindex = v, k;
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39 elseif v.name == "html" and v.attr.xmlns == xmlns_xhtml then
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40 htmlindex = k;
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41 end
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42 end
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43
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44 if not body then return; end
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45 body = body:get_text();
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46
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47 module:log("debug", "Body(%s) length: %d", type(body), #(body or ""));
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48
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49 if body and #body > 500 then
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50 local url = pastebin_message(body);
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51 module:log("debug", "Pasted message as %s", url);
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52 --module:log("debug", " stanza[bodyindex] = %q", tostring( stanza[bodyindex]));
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53 stanza[bodyindex][1] = url;
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54 local html = st.stanza("html", { xmlns = xmlns_xhtmlim }):tag("body", { xmlns = xmlns_xhtml });
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55 html:tag("p"):text(body:sub(1,150)):up();
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56 html:tag("a", { href = url }):text("[...]"):up();
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57 stanza[htmlindex or #stanza+1] = html;
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58 end
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59 end
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60
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61 module:hook("message/bare", check_message);
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62
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63 local ports = config.get(module.host, "core", "pastebin_ports") or { 5280 };
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64 for _, options in ipairs(ports) do
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65 local port, base, ssl, interface = 5280, "pastebin", false, nil;
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66 if type(options) == "number" then
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67 port = options;
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68 elseif type(options) == "table" then
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69 port, base, ssl, interface = options.port or 5280, options.path or "pastebin", options.ssl or false, options.interface;
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70 elseif type(options) == "string" then
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71 base = options;
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72 end
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73
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74 base_url = base_url or ("http://"..module:get_host()..(port ~= 80 and (":"..port) or "").."/"..base.."/");
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75
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76 httpserver.new{ port = port, base = base, handler = handle_request, ssl = ssl }
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77 end
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