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         local longest_platform = 0;
  21         for platform in pairs(sources) do
  22                 longest_platform = math.max(longest_platform, #platform);
  23         end
  24         for platform, source in pairs(sources) do
  25                 print("", platform..":"..(" "):rep(4+longest_platform-#platform)..source);
  26         end
  27         print("");
  28         print(msg or (name.." is required for Prosody to run, so we will now exit."));
  29         print("More help can be found on our website, at http://prosody.im/doc/depends");
  30         print("**************************");
  31         print("");
  32 end
  33
  34 local lxp = softreq "lxp"
  35
  36 if not lxp then
  37         missingdep("luaexpat", {
  38                         ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-expat0";
  39                         ["luarocks"] = "luarocks install luaexpat";
  40                         ["Source"] = "http://www.keplerproject.org/luaexpat/";
  41                 });
  42         fatal = true;
  43 end
  44
  45 local socket = softreq "socket"
  46
  47 if not socket then
  48         missingdep("luasocket", {
  49                         ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-socket2";
  50                         ["luarocks"] = "luarocks install luasocket";
  51                         ["Source"] = "http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/";
  52                 });
  53         fatal = true;
  54 end
  55
  56 local lfs, err = softreq "lfs"
  57 if not lfs then
  58         missingdep("luafilesystem", {
  59                         ["luarocks"] = "luarocks install luafilesystem";
  60                         ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-luafilesystem0";
  61                         ["Source"] = "http://www.keplerproject.org/luafilesystem/";
  62                 });
  63         fatal = true;
  64 end
  65
  66 local ssl = softreq "ssl"
  67
  68 if not ssl then
  69         if config.get("*", "core", "run_without_ssl") then
  70                 log("warn", "Running without SSL support because run_without_ssl is defined in the config");
  71         else
  72                 missingdep("LuaSec", {
  73                                 ["Debian/Ubuntu"] = "http://prosody.im/download/start#debian_and_ubuntu";
  74                                 ["luarocks"] = "luarocks install luasec";
  75                                 ["Source"] = "http://www.inf.puc-rio.br/~brunoos/luasec/";
  76                         }, "SSL/TLS support will not be available");
  77         end
  78 end
  79
  80 local encodings, err = softreq "util.encodings"
  81 if not encodings then
  82         if err:match("not found") then
  83                 missingdep("util.encodings", { ["Windows"] = "Make sure you have encodings.dll from the Prosody distribution in util/";
  84                                         ["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/encodings.so";
  85                                 });
  86         else
  87                 print "***********************************"
  88                 print("util/encodings couldn't be loaded. Check that you have a recent version of libidn");
  89                 print ""
  90                 print("The full error was:");
  91                 print(err)
  92                 print "***********************************"
  93         end
  94         fatal = true;
  95 end
  96
  97 local hashes, err = softreq "util.hashes"
  98 if not hashes then
  99         if err:match("not found") then
 100                 missingdep("util.hashes", { ["Windows"] = "Make sure you have hashes.dll from the Prosody distribution in util/";
 101                                         ["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/hashes.so";
 102                                 });
 103         else
 104                 print "***********************************"
 105                 print("util/hashes couldn't be loaded. Check that you have a recent version of OpenSSL (libcrypto in particular)");
 106                 print ""
 107                 print("The full error was:");
 108                 print(err)
 109                 print "***********************************"
 110         end
 111         fatal = true;
 112 end
 113
 114 if fatal then os.exit(1); end