Mercurial > prosody-modules
annotate mod_pastebin/mod_pastebin.lua @ 438:7f0cdde1e42a
mod_pastebin: Add option 'pastebin_private_messages', defaults to false for components and true for other hosts (thanks Kelden/Maranda)
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Thu, 22 Sep 2011 12:47:33 +0100 |
| parents | 7a695ee3884b |
| children | 82ccfba5ac2f |
| rev | line source |
|---|---|
| 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 pastebin_private_messages = module:get_option_boolean("pastebin_private_messages", hosts[module.host].type ~= "component"); |
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10 |
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11 local function drop_invalid_utf8(seq) |
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12 local start = seq:byte(); |
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13 module:log("utf8: %d, %d", start, #seq); |
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14 if (start <= 223 and #seq < 2) |
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15 or (start >= 224 and start <= 239 and #seq < 3) |
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16 or (start >= 240 and start <= 244 and #seq < 4) |
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17 or (start > 244) then |
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18 return ""; |
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19 end |
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20 return seq; |
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21 end |
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22 |
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23 local length_threshold = config.get(module.host, "core", "pastebin_threshold") or 500; |
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24 local line_threshold = config.get(module.host, "core", "pastebin_line_threshold") or 4; |
| 5 | 25 |
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26 local base_url = config.get(module.host, "core", "pastebin_url"); |
| 5 | 27 |
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28 -- Seconds a paste should live for in seconds (config is in hours), default 24 hours |
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29 local expire_after = math.floor((config.get(module.host, "core", "pastebin_expire_after") or 24) * 3600); |
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30 |
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31 local trigger_string = config.get(module.host, "core", "pastebin_trigger"); |
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32 trigger_string = (trigger_string and trigger_string .. " "); |
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33 |
| 5 | 34 local pastes = {}; |
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35 local default_headers = { ["Content-Type"] = "text/plain; charset=utf-8" }; |
| 5 | 36 |
| 37 local xmlns_xhtmlim = "http://jabber.org/protocol/xhtml-im"; | |
| 38 local xmlns_xhtml = "http://www.w3.org/1999/xhtml"; | |
| 39 | |
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40 function pastebin_text(text) |
| 5 | 41 local uuid = uuid_new(); |
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42 pastes[uuid] = { body = text, time = os_time(), headers = default_headers }; |
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43 pastes[#pastes+1] = uuid; |
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44 if not pastes[2] then -- No other pastes, give the timer a kick |
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45 add_task(expire_after, expire_pastes); |
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46 end |
| 5 | 47 return base_url..uuid; |
| 48 end | |
| 49 | |
| 50 function handle_request(method, body, request) | |
| 51 local pasteid = request.url.path:match("[^/]+$"); | |
| 52 if not pasteid or not pastes[pasteid] then | |
| 53 return "Invalid paste id, perhaps it expired?"; | |
| 54 end | |
| 55 | |
| 56 --module:log("debug", "Received request, replying: %s", pastes[pasteid].text); | |
| 57 | |
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58 return pastes[pasteid]; |
| 5 | 59 end |
| 60 | |
| 61 function check_message(data) | |
| 62 local origin, stanza = data.origin, data.stanza; | |
| 63 | |
| 64 local body, bodyindex, htmlindex; | |
| 65 for k,v in ipairs(stanza) do | |
| 66 if v.name == "body" then | |
| 67 body, bodyindex = v, k; | |
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68 elseif v.name == "html" and v.attr.xmlns == xmlns_xhtmlim then |
| 5 | 69 htmlindex = k; |
| 70 end | |
| 71 end | |
| 72 | |
| 73 if not body then return; end | |
| 74 body = body:get_text(); | |
| 75 | |
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76 --module:log("debug", "Body(%s) length: %d", type(body), #(body or "")); |
| 5 | 77 |
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78 if body and ( |
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79 (#body > length_threshold) or |
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80 (trigger_string and body:find(trigger_string, 1, true) == 1) or |
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81 (select(2, body:gsub("\n", "%0")) >= line_threshold) |
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82 ) then |
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83 if trigger_string then |
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84 body = body:gsub("^" .. trigger_string, "", 1); |
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85 end |
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86 local url = pastebin_text(body); |
| 5 | 87 module:log("debug", "Pasted message as %s", url); |
| 88 --module:log("debug", " stanza[bodyindex] = %q", tostring( stanza[bodyindex])); | |
| 89 stanza[bodyindex][1] = url; | |
| 90 local html = st.stanza("html", { xmlns = xmlns_xhtmlim }):tag("body", { xmlns = xmlns_xhtml }); | |
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91 html:tag("p"):text(body:sub(1,150):gsub("[\194-\244][\128-\191]*$", drop_invalid_utf8)):up(); |
| 5 | 92 html:tag("a", { href = url }):text("[...]"):up(); |
| 93 stanza[htmlindex or #stanza+1] = html; | |
| 94 end | |
| 95 end | |
| 96 | |
| 97 module:hook("message/bare", check_message); | |
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98 if pastebin_private_messages then |
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99 module:hook("message/full", check_message); |
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100 end |
| 5 | 101 |
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102 function expire_pastes(time) |
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103 time = time or os_time(); -- COMPAT with 0.5 |
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104 if pastes[1] then |
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105 pastes[pastes[1]] = nil; |
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106 t_remove(pastes, 1); |
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107 if pastes[1] then |
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108 return (expire_after - (time - pastes[pastes[1]].time)) + 1; |
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109 end |
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110 end |
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111 end |
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112 |
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113 |
| 5 | 114 local ports = config.get(module.host, "core", "pastebin_ports") or { 5280 }; |
| 115 for _, options in ipairs(ports) do | |
| 116 local port, base, ssl, interface = 5280, "pastebin", false, nil; | |
| 117 if type(options) == "number" then | |
| 118 port = options; | |
| 119 elseif type(options) == "table" then | |
| 120 port, base, ssl, interface = options.port or 5280, options.path or "pastebin", options.ssl or false, options.interface; | |
| 121 elseif type(options) == "string" then | |
| 122 base = options; | |
| 123 end | |
| 124 | |
| 125 base_url = base_url or ("http://"..module:get_host()..(port ~= 80 and (":"..port) or "").."/"..base.."/"); | |
| 126 | |
| 127 httpserver.new{ port = port, base = base, handler = handle_request, ssl = ssl } | |
| 128 end |