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tools/migration/migrator/prosody_files.lua @ 5306:10bc0e2aa55e
s2smanager: Generate session names used for logging the same way everywhere
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 24 Jan 2013 00:58:17 +0100 |
parent | 5021:85b2689dbcfe |
child | 5974:9ce0d246c851 |
rev | line source |
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1 |
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2 local print = print; |
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3 local assert = assert; |
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4 local setmetatable = setmetatable; |
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5 local tonumber = tonumber; |
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6 local char = string.char; |
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7 local coroutine = coroutine; |
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8 local lfs = require "lfs"; |
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9 local loadfile = loadfile; |
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10 local pcall = pcall; |
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11 local mtools = require "migrator.mtools"; |
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12 local next = next; |
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13 local pairs = pairs; |
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14 local json = require "util.json"; |
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15 local os_getenv = os.getenv; |
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16 |
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17 prosody = {}; |
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18 local dm = require "util.datamanager" |
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19 |
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20 module "prosody_files" |
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21 |
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22 local function is_dir(path) return lfs.attributes(path, "mode") == "directory"; end |
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23 local function is_file(path) return lfs.attributes(path, "mode") == "file"; end |
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24 local function clean_path(path) |
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25 return path:gsub("\\", "/"):gsub("//+", "/"):gsub("^~", os_getenv("HOME") or "~"); |
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26 end |
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27 local encode, decode; do |
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28 local urlcodes = setmetatable({}, { __index = function (t, k) t[k] = char(tonumber("0x"..k)); return t[k]; end }); |
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29 decode = function (s) return s and (s:gsub("+", " "):gsub("%%([a-fA-F0-9][a-fA-F0-9])", urlcodes)); end |
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30 encode = function (s) return s and (s:gsub("%W", function (c) return format("%%%02x", c:byte()); end)); end |
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31 end |
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32 local function decode_dir(x) |
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33 if x:gsub("%%%x%x", ""):gsub("[a-zA-Z0-9]", "") == "" then |
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34 return decode(x); |
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35 end |
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36 end |
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37 local function decode_file(x) |
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38 if x:match(".%.dat$") and x:gsub("%.dat$", ""):gsub("%%%x%x", ""):gsub("[a-zA-Z0-9]", "") == "" then |
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39 return decode(x:gsub("%.dat$", "")); |
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40 end |
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41 end |
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42 local function prosody_dir(path, ondir, onfile, ...) |
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43 for x in lfs.dir(path) do |
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44 local xpath = path.."/"..x; |
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45 if decode_dir(x) and is_dir(xpath) then |
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46 ondir(xpath, x, ...); |
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47 elseif decode_file(x) and is_file(xpath) then |
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48 onfile(xpath, x, ...); |
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49 end |
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50 end |
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51 end |
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52 |
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53 local function handle_root_file(path, name) |
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54 --print("root file: ", decode_file(name)) |
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55 coroutine.yield { user = nil, host = nil, store = decode_file(name) }; |
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56 end |
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57 local function handle_host_file(path, name, host) |
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58 --print("host file: ", decode_dir(host).."/"..decode_file(name)) |
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59 coroutine.yield { user = nil, host = decode_dir(host), store = decode_file(name) }; |
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60 end |
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61 local function handle_store_file(path, name, store, host) |
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62 --print("store file: ", decode_file(name).."@"..decode_dir(host).."/"..decode_dir(store)) |
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63 coroutine.yield { user = decode_file(name), host = decode_dir(host), store = decode_dir(store) }; |
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64 end |
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65 local function handle_host_store(path, name, host) |
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66 prosody_dir(path, function() end, handle_store_file, name, host); |
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67 end |
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68 local function handle_host_dir(path, name) |
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69 prosody_dir(path, handle_host_store, handle_host_file, name); |
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70 end |
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71 local function handle_root_dir(path) |
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72 prosody_dir(path, handle_host_dir, handle_root_file); |
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73 end |
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74 |
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75 local function decode_user(item) |
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76 local userdata = { |
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77 user = item[1].user; |
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78 host = item[1].host; |
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79 stores = {}; |
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80 }; |
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81 for i=1,#item do -- loop over stores |
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82 local result = {}; |
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83 local store = item[i]; |
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84 userdata.stores[store.store] = store.data; |
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85 store.user = nil; store.host = nil; store.store = nil; |
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86 end |
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87 return userdata; |
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88 end |
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89 |
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90 function reader(input) |
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91 local path = clean_path(assert(input.path, "no input.path specified")); |
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92 assert(is_dir(path), "input.path is not a directory"); |
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93 local iter = coroutine.wrap(function()handle_root_dir(path);end); |
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94 -- get per-user stores, sorted |
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95 local iter = mtools.sorted { |
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96 reader = function() |
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97 local x = iter(); |
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98 if x then |
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99 dm.set_data_path(path); |
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100 local err; |
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101 x.data, err = dm.load(x.user, x.host, x.store); |
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102 if x.data == nil and err then |
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103 error(("Error loading data at path %s for %s@%s (%s store)") |
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104 :format(path, x.user or "<nil>", x.host or "<nil>", x.store or "<nil>"), 0); |
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105 end |
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106 return x; |
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107 end |
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108 end; |
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109 sorter = function(a, b) |
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110 local a_host, a_user, a_store = a.host or "", a.user or "", a.store or ""; |
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111 local b_host, b_user, b_store = b.host or "", b.user or "", b.store or ""; |
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112 return a_host > b_host or (a_host==b_host and a_user > b_user) or (a_host==b_host and a_user==b_user and a_store > b_store); |
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113 end; |
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114 }; |
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115 -- merge stores to get users |
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116 iter = mtools.merged(iter, function(a, b) |
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117 return (a.host == b.host and a.user == b.user); |
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118 end); |
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119 |
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120 return function() |
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121 local x = iter(); |
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122 return x and decode_user(x); |
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123 end |
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124 end |
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125 |
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126 function writer(output) |
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127 local path = clean_path(assert(output.path, "no output.path specified")); |
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128 assert(is_dir(path), "output.path is not a directory"); |
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129 return function(item) |
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130 if not item then return; end -- end of input |
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131 dm.set_data_path(path); |
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132 for store, data in pairs(item.stores) do |
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133 assert(dm.store(item.user, item.host, store, data)); |
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134 end |
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135 end |
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136 end |
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137 |
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138 return _M; |