util/dependencies.lua

   1 -- Prosody IM
   2 -- Copyright (C) 2008-2009 Matthew Wild
   3 -- Copyright (C) 2008-2009 Waqas Hussain
   4 --
   5 -- This project is MIT/X11 licensed. Please see the
   6 -- COPYING file in the source package for more information.
   7 --
   8
   9
  10 local fatal;
  11
  12 local function softreq(...) local ok, lib =  pcall(require, ...); if ok then return lib; else return nil, lib; end end
  13
  14 local function missingdep(name, sources, msg)
  15         print("");
  16         print("**************************");
  17         print("Prosody was unable to find "..tostring(name));
  18         print("This package can be obtained in the following ways:");
  19         print("");
  20         for k,v in pairs(sources) do
  21                 print("", k, v);
  22         end
  23         print("");
  24         print(msg or (name.." is required for Prosody to run, so we will now exit."));
  25         print("More help can be found on our website, at http://prosody.im/doc/depends");
  26         print("**************************");
  27         print("");
  28 end
  29
  30 local lxp = softreq "lxp"
  31
  32 if not lxp then
  33         missingdep("luaexpat", {
  34                         ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-expat0";
  35                         ["luarocks"] = "luarocks install luaexpat";
  36                         ["Source"] = "http://www.keplerproject.org/luaexpat/";
  37                 });
  38         fatal = true;
  39 end
  40
  41 local socket = softreq "socket"
  42
  43 if not socket then
  44         missingdep("luasocket", {
  45                         ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-socket2";
  46                         ["luarocks"] = "luarocks install luasocket";
  47                         ["Source"] = "http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/";
  48                 });
  49         fatal = true;
  50 end
  51
  52 local lfs, err = softreq "lfs"
  53 if not lfs then
  54         missingdep("luafilesystem", {
  55                         ["luarocks"] = "luarocks install luafilesystem";
  56                         ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-filesystem0";
  57                         ["Source"] = "http://www.keplerproject.org/luafilesystem/";
  58                 });
  59         fatal = true;
  60 end
  61
  62 local ssl = softreq "ssl"
  63
  64 if not ssl then
  65         if config.get("*", "core", "run_without_ssl") then
  66                 log("warn", "Running without SSL support because run_without_ssl is defined in the config");
  67         else
  68                 missingdep("LuaSec", {
  69                                 ["Debian/Ubuntu"] = "http://prosody.im/download/start#debian_and_ubuntu";
  70                                 ["luarocks"] = "luarocks install luasec";
  71                                 ["Source"] = "http://www.inf.puc-rio.br/~brunoos/luasec/";
  72                         }, "SSL/TLS support will not be available");
  73         end
  74 else
  75         local major, minor, veryminor, patched = ssl._VERSION:match("(%d+)%.(%d+)%.?(%d*)(M?)");
  76         if not major or ((tonumber(major) == 0 and (tonumber(minor) or 0) <= 3 and (tonumber(veryminor) or 0) <= 2) and patched ~= "M") then
  77                 log("error", "This version of LuaSec contains a known bug that causes disconnects, see http://prosody.im/doc/depends");
  78         end
  79 end
  80
  81 local encodings, err = softreq "util.encodings"
  82 if not encodings then
  83         if err:match("not found") then
  84                 missingdep("util.encodings", { ["Windows"] = "Make sure you have encodings.dll from the Prosody distribution in util/";
  85                                         ["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/encodings.so";
  86                                 });
  87         else
  88                 print "***********************************"
  89                 print("util/encodings couldn't be loaded. Check that you have a recent version of libidn");
  90                 print ""
  91                 print("The full error was:");
  92                 print(err)
  93                 print "***********************************"
  94         end
  95         fatal = true;
  96 end
  97
  98 local hashes, err = softreq "util.hashes"
  99 if not hashes then
 100         if err:match("not found") then
 101                 missingdep("util.hashes", { ["Windows"] = "Make sure you have hashes.dll from the Prosody distribution in util/";
 102                                         ["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/hashes.so";
 103                                 });
 104         else
 105                 print "***********************************"
 106                 print("util/hashes couldn't be loaded. Check that you have a recent version of OpenSSL (libcrypto in particular)");
 107                 print ""
 108                 print("The full error was:");
 109                 print(err)
 110                 print "***********************************"
 111         end
 112         fatal = true;
 113 end
 114
 115 if fatal then os.exit(1); end