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mod_pastebin/mod_pastebin.lua @ 160:9a7671720dec
mod_smacks: XEP-0198 Stream Management acks. Initial commit - very rough, useful mainly for testing at the moment, most certainly contains bugs :)
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Thu, 03 Jun 2010 01:08:58 +0100 |
| parent | 156:b51741b7e86d |
| child | 167:0d37d18ea073 |
| rev | line source |
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| 5 | 1 |
| 2 local st = require "util.stanza"; | |
| 3 local httpserver = require "net.httpserver"; | |
| 4 local uuid_new = require "util.uuid".generate; | |
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5 local os_time = os.time; |
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6 local t_insert, t_remove = table.insert, table.remove; |
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7 local add_task = require "util.timer".add_task; |
| 5 | 8 |
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9 local length_threshold = config.get(module.host, "core", "pastebin_threshold") or 500; |
| 5 | 10 |
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11 local base_url = config.get(module.host, "core", "pastebin_url"); |
| 5 | 12 |
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13 -- Seconds a paste should live for in seconds (config is in hours), default 24 hours |
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14 local expire_after = math.floor((config.get(module.host, "core", "pastebin_expire_after") or 24) * 3600); |
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15 |
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16 local trigger_string = config.get(module.host, "core", "pastebin_trigger"); |
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17 trigger_string = (trigger_string and trigger_string .. " ") or ""; |
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18 |
| 5 | 19 local pastes = {}; |
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20 local default_headers = { ["Content-Type"] = "text/plain; charset=utf-8" }; |
| 5 | 21 |
| 22 local xmlns_xhtmlim = "http://jabber.org/protocol/xhtml-im"; | |
| 23 local xmlns_xhtml = "http://www.w3.org/1999/xhtml"; | |
| 24 | |
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25 function pastebin_text(text) |
| 5 | 26 local uuid = uuid_new(); |
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27 pastes[uuid] = { body = text, time = os_time(), headers = default_headers }; |
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28 pastes[#pastes+1] = uuid; |
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29 if not pastes[2] then -- No other pastes, give the timer a kick |
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30 add_task(expire_after, expire_pastes); |
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31 end |
| 5 | 32 return base_url..uuid; |
| 33 end | |
| 34 | |
| 35 function handle_request(method, body, request) | |
| 36 local pasteid = request.url.path:match("[^/]+$"); | |
| 37 if not pasteid or not pastes[pasteid] then | |
| 38 return "Invalid paste id, perhaps it expired?"; | |
| 39 end | |
| 40 | |
| 41 --module:log("debug", "Received request, replying: %s", pastes[pasteid].text); | |
| 42 | |
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43 return pastes[pasteid]; |
| 5 | 44 end |
| 45 | |
| 46 function check_message(data) | |
| 47 local origin, stanza = data.origin, data.stanza; | |
| 48 | |
| 49 local body, bodyindex, htmlindex; | |
| 50 for k,v in ipairs(stanza) do | |
| 51 if v.name == "body" then | |
| 52 body, bodyindex = v, k; | |
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53 elseif v.name == "html" and v.attr.xmlns == xmlns_xhtmlim then |
| 5 | 54 htmlindex = k; |
| 55 end | |
| 56 end | |
| 57 | |
| 58 if not body then return; end | |
| 59 body = body:get_text(); | |
| 60 | |
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61 --module:log("debug", "Body(%s) length: %d", type(body), #(body or "")); |
| 5 | 62 |
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63 if body and ((#body > length_threshold) or (body:find(trigger_string, 1, true) == 1)) then |
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64 body = body:gsub("^" .. trigger_string, "", 1); |
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65 local url = pastebin_text(body); |
| 5 | 66 module:log("debug", "Pasted message as %s", url); |
| 67 --module:log("debug", " stanza[bodyindex] = %q", tostring( stanza[bodyindex])); | |
| 68 stanza[bodyindex][1] = url; | |
| 69 local html = st.stanza("html", { xmlns = xmlns_xhtmlim }):tag("body", { xmlns = xmlns_xhtml }); | |
| 70 html:tag("p"):text(body:sub(1,150)):up(); | |
| 71 html:tag("a", { href = url }):text("[...]"):up(); | |
| 72 stanza[htmlindex or #stanza+1] = html; | |
| 73 end | |
| 74 end | |
| 75 | |
| 76 module:hook("message/bare", check_message); | |
| 77 | |
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78 function expire_pastes(time) |
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79 time = time or os_time(); -- COMPAT with 0.5 |
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80 if pastes[1] then |
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81 pastes[pastes[1]] = nil; |
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82 t_remove(pastes, 1); |
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83 if pastes[1] then |
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84 return (expire_after - (time - pastes[pastes[1]].time)) + 1; |
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85 end |
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86 end |
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87 end |
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88 |
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89 |
| 5 | 90 local ports = config.get(module.host, "core", "pastebin_ports") or { 5280 }; |
| 91 for _, options in ipairs(ports) do | |
| 92 local port, base, ssl, interface = 5280, "pastebin", false, nil; | |
| 93 if type(options) == "number" then | |
| 94 port = options; | |
| 95 elseif type(options) == "table" then | |
| 96 port, base, ssl, interface = options.port or 5280, options.path or "pastebin", options.ssl or false, options.interface; | |
| 97 elseif type(options) == "string" then | |
| 98 base = options; | |
| 99 end | |
| 100 | |
| 101 base_url = base_url or ("http://"..module:get_host()..(port ~= 80 and (":"..port) or "").."/"..base.."/"); | |
| 102 | |
| 103 httpserver.new{ port = port, base = base, handler = handle_request, ssl = ssl } | |
| 104 end |
