prosody
67226eaef97c
util/dependencies.lua

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util/dependencies.lua @ 7142:67226eaef97c

moduleapi: Silence luacheck warning about unused 'id' parameter
author Matthew Wild <mwild1@gmail.com>
date Fri, 05 Feb 2016 00:10:27 +0000
parent 7007:e28fbe6dd424
child 7264:6d97895c2bd7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 local function softreq(...) local ok, lib = pcall(require, ...); if ok then return lib; else return nil, lib; end end
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10
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11 -- Required to be able to find packages installed with luarocks
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12 if not softreq "luarocks.loader" then -- LuaRocks 2.x
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13 softreq "luarocks.require"; -- LuaRocks <1.x
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14 end
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15
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16 local function missingdep(name, sources, msg)
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17 print("");
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18 print("**************************");
408
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19 print("Prosody was unable to find "..tostring(name));
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20 print("This package can be obtained in the following ways:");
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21 print("");
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22 local longest_platform = 0;
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23 for platform in pairs(sources) do
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24 longest_platform = math.max(longest_platform, #platform);
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25 end
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26 for platform, source in pairs(sources) do
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27 print("", platform..":"..(" "):rep(4+longest_platform-#platform)..source);
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28 end
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29 print("");
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30 print(msg or (name.." is required for Prosody to run, so we will now exit."));
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31 print("More help can be found on our website, at http://prosody.im/doc/depends");
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32 print("**************************");
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33 print("");
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34 end
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35
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36 -- COMPAT w/pre-0.8 Debian: The Debian config file used to use
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37 -- util.ztact, which has been removed from Prosody in 0.8. This
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38 -- is to log an error for people who still use it, so they can
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39 -- update their configs.
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40 package.preload["util.ztact"] = function ()
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41 if not package.loaded["core.loggingmanager"] then
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42 error("util.ztact has been removed from Prosody and you need to fix your config "
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43 .."file. More information can be found at http://prosody.im/doc/packagers#ztact", 0);
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44 else
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45 error("module 'util.ztact' has been deprecated in Prosody 0.8.");
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46 end
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47 end;
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48
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49 local function check_dependencies()
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50 if _VERSION < "Lua 5.1" then
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51 print "***********************************"
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52 print("Unsupported Lua version: ".._VERSION);
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53 print("At least Lua 5.1 is required.");
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54 print "***********************************"
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55 return false;
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56 end
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57
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58 local fatal;
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59
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60 local lxp = softreq "lxp"
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61
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62 if not lxp then
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63 missingdep("luaexpat", {
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64 ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-expat0";
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65 ["luarocks"] = "luarocks install luaexpat";
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66 ["Source"] = "http://www.keplerproject.org/luaexpat/";
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67 });
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68 fatal = true;
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69 end
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70
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71 local socket = softreq "socket"
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72
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73 if not socket then
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74 missingdep("luasocket", {
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75 ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-socket2";
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76 ["luarocks"] = "luarocks install luasocket";
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77 ["Source"] = "http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/";
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78 });
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79 fatal = true;
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80 end
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81
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82 local lfs, err = softreq "lfs"
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83 if not lfs then
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84 missingdep("luafilesystem", {
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85 ["luarocks"] = "luarocks install luafilesystem";
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86 ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-filesystem0";
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87 ["Source"] = "http://www.keplerproject.org/luafilesystem/";
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88 });
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89 fatal = true;
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90 end
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91
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92 local ssl = softreq "ssl"
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93
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94 if not ssl then
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95 missingdep("LuaSec", {
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96 ["Debian/Ubuntu"] = "http://prosody.im/download/start#debian_and_ubuntu";
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97 ["luarocks"] = "luarocks install luasec";
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98 ["Source"] = "http://www.inf.puc-rio.br/~brunoos/luasec/";
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99 }, "SSL/TLS support will not be available");
413
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100 end
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101
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102 local encodings, err = softreq "util.encodings"
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103 if not encodings then
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104 if err:match("not found") then
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105 missingdep("util.encodings", { ["Windows"] = "Make sure you have encodings.dll from the Prosody distribution in util/";
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106 ["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/encodings.so";
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107 });
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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108 else
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109 print "***********************************"
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110 print("util/encodings couldn't be loaded. Check that you have a recent version of libidn");
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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111 print ""
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112 print("The full error was:");
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113 print(err)
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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114 print "***********************************"
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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115 end
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116 fatal = true;
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117 end
408
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118
2510
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119 local hashes, err = softreq "util.hashes"
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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120 if not hashes then
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121 if err:match("not found") then
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122 missingdep("util.hashes", { ["Windows"] = "Make sure you have hashes.dll from the Prosody distribution in util/";
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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123 ["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/hashes.so";
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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124 });
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125 else
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126 print "***********************************"
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127 print("util/hashes couldn't be loaded. Check that you have a recent version of OpenSSL (libcrypto in particular)");
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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128 print ""
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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129 print("The full error was:");
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130 print(err)
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131 print "***********************************"
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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132 end
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133 fatal = true;
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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134 end
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135 return not fatal;
408
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136 end
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137
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138 local function log_warnings()
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139 if _VERSION > "Lua 5.1" then
7007
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140 prosody.log("warn", "Support for %s is experimental, please report any issues", _VERSION);
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141 end
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142 local ssl = softreq"ssl";
3904
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143 if ssl then
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144 local major, minor, veryminor, patched = ssl._VERSION:match("(%d+)%.(%d+)%.?(%d*)(M?)");
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145 if not major or ((tonumber(major) == 0 and (tonumber(minor) or 0) <= 3 and (tonumber(veryminor) or 0) <= 2) and patched ~= "M") then
7007
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146 prosody.log("error", "This version of LuaSec contains a known bug that causes disconnects, see http://prosody.im/doc/depends");
3904
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147 end
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148 end
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149 local lxp = softreq"lxp";
4426
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Waqas Hussain <waqas20@gmail.com>
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150 if lxp then
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
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151 if not pcall(lxp.new, { StartDoctypeDecl = false }) then
7007
e28fbe6dd424 util.dependencies: Use prosody.log() instead of global log()
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152 prosody.log("error", "The version of LuaExpat on your system leaves Prosody "
4426
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153 .."vulnerable to denial-of-service attacks. You should upgrade to "
6043
29d2dd705148 util.dependencies: Log error when LuaExpat is not capable of enforcing stanza size limits
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154 .."LuaExpat 1.3.0 or higher as soon as possible. See "
29d2dd705148 util.dependencies: Log error when LuaExpat is not capable of enforcing stanza size limits
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155 .."http://prosody.im/doc/depends#luaexpat for more information.");
29d2dd705148 util.dependencies: Log error when LuaExpat is not capable of enforcing stanza size limits
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156 end
29d2dd705148 util.dependencies: Log error when LuaExpat is not capable of enforcing stanza size limits
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157 if not lxp.new({}).getcurrentbytecount then
7007
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158 prosody.log("error", "The version of LuaExpat on your system does not support "
6043
29d2dd705148 util.dependencies: Log error when LuaExpat is not capable of enforcing stanza size limits
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159 .."stanza size limits, which may leave servers on untrusted "
29d2dd705148 util.dependencies: Log error when LuaExpat is not capable of enforcing stanza size limits
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160 .."networks (e.g. the internet) vulnerable to denial-of-service "
29d2dd705148 util.dependencies: Log error when LuaExpat is not capable of enforcing stanza size limits
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161 .."attacks. You should upgrade to LuaExpat 1.3.0 or higher as "
29d2dd705148 util.dependencies: Log error when LuaExpat is not capable of enforcing stanza size limits
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162 .."soon as possible. See "
4426
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
Waqas Hussain <waqas20@gmail.com>
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163 .."http://prosody.im/doc/depends#luaexpat for more information.");
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
Waqas Hussain <waqas20@gmail.com>
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164 end
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
Waqas Hussain <waqas20@gmail.com>
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165 end
3904
f93163081b3c prosody, prosodyctl, util.dependencies: Split checking and logging of dependencies so we can check hard deps before the config and logging is loaded
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166 end
742
b9f59372eb4e util.dependencies: Show useful messages when our own libraries are not found, too
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diff changeset
167
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168 return {
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
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diff changeset
169 softreq = softreq;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
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170 missingdep = missingdep;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
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171 check_dependencies = check_dependencies;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
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172 log_warnings = log_warnings;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
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diff changeset
173 };