Mercurial > prosody-modules
annotate mod_pastebin/mod_pastebin.lua @ 189:16d367e3c04e
mod_pastebin: Fix to not truncate UTF-8 sequences when creating a snippet summary for XHTML-IM (thanks DaiZW for discovering :) )
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Mon, 28 Jun 2010 14:54:30 +0100 |
| parents | 0d37d18ea073 |
| children | 7a695ee3884b |
| 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 length_threshold = config.get(module.host, "core", "pastebin_threshold") or 500; |
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10 local line_threshold = config.get(module.host, "core", "pastebin_line_threshold") or 4; |
| 5 | 11 |
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mod_pastebin: Small fix to read the pastebin URL from the config
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12 local base_url = config.get(module.host, "core", "pastebin_url"); |
| 5 | 13 |
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14 -- Seconds a paste should live for in seconds (config is in hours), default 24 hours |
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15 local expire_after = math.floor((config.get(module.host, "core", "pastebin_expire_after") or 24) * 3600); |
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16 |
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17 local trigger_string = config.get(module.host, "core", "pastebin_trigger"); |
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18 trigger_string = (trigger_string and trigger_string .. " "); |
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19 |
| 5 | 20 local pastes = {}; |
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mod_pastebin: Send Content-Type header to specify plain UTF-8 text
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21 local default_headers = { ["Content-Type"] = "text/plain; charset=utf-8" }; |
| 5 | 22 |
| 23 local xmlns_xhtmlim = "http://jabber.org/protocol/xhtml-im"; | |
| 24 local xmlns_xhtml = "http://www.w3.org/1999/xhtml"; | |
| 25 | |
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26 function pastebin_text(text) |
| 5 | 27 local uuid = uuid_new(); |
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28 pastes[uuid] = { body = text, time = os_time(), headers = default_headers }; |
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29 pastes[#pastes+1] = uuid; |
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30 if not pastes[2] then -- No other pastes, give the timer a kick |
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31 add_task(expire_after, expire_pastes); |
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32 end |
| 5 | 33 return base_url..uuid; |
| 34 end | |
| 35 | |
| 36 function handle_request(method, body, request) | |
| 37 local pasteid = request.url.path:match("[^/]+$"); | |
| 38 if not pasteid or not pastes[pasteid] then | |
| 39 return "Invalid paste id, perhaps it expired?"; | |
| 40 end | |
| 41 | |
| 42 --module:log("debug", "Received request, replying: %s", pastes[pasteid].text); | |
| 43 | |
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44 return pastes[pasteid]; |
| 5 | 45 end |
| 46 | |
| 47 function check_message(data) | |
| 48 local origin, stanza = data.origin, data.stanza; | |
| 49 | |
| 50 local body, bodyindex, htmlindex; | |
| 51 for k,v in ipairs(stanza) do | |
| 52 if v.name == "body" then | |
| 53 body, bodyindex = v, k; | |
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mod_pastebin: Fix finding of XHTML content.
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54 elseif v.name == "html" and v.attr.xmlns == xmlns_xhtmlim then |
| 5 | 55 htmlindex = k; |
| 56 end | |
| 57 end | |
| 58 | |
| 59 if not body then return; end | |
| 60 body = body:get_text(); | |
| 61 | |
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mod_pastebin: Comment some debug logging on every message
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62 --module:log("debug", "Body(%s) length: %d", type(body), #(body or "")); |
| 5 | 63 |
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64 if body and ( |
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65 (#body > length_threshold) or |
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66 (trigger_string and body:find(trigger_string, 1, true) == 1) or |
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67 (select(2, body:gsub("\n", "%0")) >= line_threshold) |
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mod_pastebin: Fix trigger_string matching when no trigger is set, and add support for counting lines (pastebin_line_threshold, default: 4)
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68 ) then |
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mod_pastebin: Fix trigger_string matching when no trigger is set, and add support for counting lines (pastebin_line_threshold, default: 4)
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parents:
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69 if trigger_string then |
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mod_pastebin: Fix trigger_string matching when no trigger is set, and add support for counting lines (pastebin_line_threshold, default: 4)
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parents:
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70 body = body:gsub("^" .. trigger_string, "", 1); |
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mod_pastebin: Fix trigger_string matching when no trigger is set, and add support for counting lines (pastebin_line_threshold, default: 4)
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parents:
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71 end |
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72 local url = pastebin_text(body); |
| 5 | 73 module:log("debug", "Pasted message as %s", url); |
| 74 --module:log("debug", " stanza[bodyindex] = %q", tostring( stanza[bodyindex])); | |
| 75 stanza[bodyindex][1] = url; | |
| 76 local html = st.stanza("html", { xmlns = xmlns_xhtmlim }):tag("body", { xmlns = xmlns_xhtml }); | |
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mod_pastebin: Fix to not truncate UTF-8 sequences when creating a snippet summary for XHTML-IM (thanks DaiZW for discovering :) )
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77 html:tag("p"):text(body:sub(1,150):gsub("[\128-\255]+$", "")):up(); |
| 5 | 78 html:tag("a", { href = url }):text("[...]"):up(); |
| 79 stanza[htmlindex or #stanza+1] = html; | |
| 80 end | |
| 81 end | |
| 82 | |
| 83 module:hook("message/bare", check_message); | |
| 84 | |
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85 function expire_pastes(time) |
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86 time = time or os_time(); -- COMPAT with 0.5 |
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87 if pastes[1] then |
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88 pastes[pastes[1]] = nil; |
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89 t_remove(pastes, 1); |
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90 if pastes[1] then |
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91 return (expire_after - (time - pastes[pastes[1]].time)) + 1; |
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92 end |
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93 end |
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94 end |
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95 |
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96 |
| 5 | 97 local ports = config.get(module.host, "core", "pastebin_ports") or { 5280 }; |
| 98 for _, options in ipairs(ports) do | |
| 99 local port, base, ssl, interface = 5280, "pastebin", false, nil; | |
| 100 if type(options) == "number" then | |
| 101 port = options; | |
| 102 elseif type(options) == "table" then | |
| 103 port, base, ssl, interface = options.port or 5280, options.path or "pastebin", options.ssl or false, options.interface; | |
| 104 elseif type(options) == "string" then | |
| 105 base = options; | |
| 106 end | |
| 107 | |
| 108 base_url = base_url or ("http://"..module:get_host()..(port ~= 80 and (":"..port) or "").."/"..base.."/"); | |
| 109 | |
| 110 httpserver.new{ port = port, base = base, handler = handle_request, ssl = ssl } | |
| 111 end |