prosody
fb25dce69d41
util/sslconfig.lua

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util/sslconfig.lua @ 6723:fb25dce69d41

Merge with trunk
author Matthew Wild <mwild1@gmail.com>
date Tue, 19 May 2015 16:33:18 +0100
parent 6671:2d5e2ed44c22
child 6777:5de6b93d0190
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1
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2 local handlers = { };
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3 local finalisers = { };
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4 local id = function (v) return v end
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5
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6 function handlers.options(a, k, b)
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7 local o = a[k] or { };
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8 if type(b) ~= "table" then b = { b } end
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9 for key, value in pairs(b) do
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10 if value == true or value == false then
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11 o[key] = value;
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12 else
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13 o[value] = true;
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14 end
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15 end
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16 a[k] = o;
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17 end
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18
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19 handlers.verify = handlers.options;
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20 handlers.verifyext = handlers.options;
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21
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22 function finalisers.options(a)
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23 local o = {};
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24 for opt, enable in pairs(a) do
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25 if enable then
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26 o[#o+1] = opt;
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27 end
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28 end
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29 return o;
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30 end
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31
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32 finalisers.verify = finalisers.options;
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33 finalisers.verifyext = finalisers.options;
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34
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35 function finalisers.ciphers(a)
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36 if type(a) == "table" then
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37 return table.concat(a, ":");
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38 end
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39 return a;
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40 end
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41
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42 local protocols = { "sslv2", "sslv3", "tlsv1", "tlsv1_1", "tlsv1_2" };
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43 for i = 1, #protocols do protocols[protocols[i] .. "+"] = i - 1; end
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44
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45 local function protocol(a)
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46 local min_protocol = protocols[a.protocol];
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47 if min_protocol then
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48 a.protocol = "sslv23";
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49 for i = 1, min_protocol do
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50 table.insert(a.options, "no_"..protocols[i]);
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51 end
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52 end
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53 end
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54
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55 local function apply(a, b)
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56 if type(b) == "table" then
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57 for k,v in pairs(b) do
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58 (handlers[k] or rawset)(a, k, v);
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59 end
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60 end
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61 end
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62
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63 local function final(a)
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64 local f = { };
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65 for k,v in pairs(a) do
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66 f[k] = (finalisers[k] or id)(v);
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67 end
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68 protocol(f);
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69 return f;
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70 end
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71
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72 local sslopts_mt = {
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73 __index = {
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74 apply = apply;
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75 final = final;
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76 };
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77 };
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78
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79 local function new()
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80 return setmetatable({options={}}, sslopts_mt);
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81 end
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82
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83 return {
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84 apply = apply;
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85 final = final;
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86 new = new;
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87 };