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|
-- Prosody IM
-- Copyright (C) 2008-2009 Matthew Wild
-- Copyright (C) 2008-2009 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
module("dependencies", package.seeall)
function softreq(...) local ok, lib = pcall(require, ...); if ok then return lib; else return nil, lib; end end
-- Required to be able to find packages installed with luarocks
if not softreq "luarocks.loader" then -- LuaRocks 2.x
softreq "luarocks.require"; -- LuaRocks <1.x
end
function missingdep(name, sources, msg)
print("");
print("**************************");
print("Prosody was unable to find "..tostring(name));
print("This package can be obtained in the following ways:");
print("");
local longest_platform = 0;
for platform in pairs(sources) do
longest_platform = math.max(longest_platform, #platform);
end
for platform, source in pairs(sources) do
print("", platform..":"..(" "):rep(4+longest_platform-#platform)..source);
end
print("");
print(msg or (name.." is required for Prosody to run, so we will now exit."));
print("More help can be found on our website, at http://prosody.im/doc/depends");
print("**************************");
print("");
end
function check_dependencies()
local fatal;
local lxp = softreq "lxp"
if not lxp then
missingdep("luaexpat", {
["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-expat0";
["luarocks"] = "luarocks install luaexpat";
["Source"] = "http://www.keplerproject.org/luaexpat/";
});
fatal = true;
end
local socket = softreq "socket"
if not socket then
missingdep("luasocket", {
["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-socket2";
["luarocks"] = "luarocks install luasocket";
["Source"] = "http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/";
});
fatal = true;
end
local lfs, err = softreq "lfs"
if not lfs then
missingdep("luafilesystem", {
["luarocks"] = "luarocks install luafilesystem";
["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-filesystem0";
["Source"] = "http://www.keplerproject.org/luafilesystem/";
});
fatal = true;
end
local ssl = softreq "ssl"
if not ssl then
if config.get("*", "core", "run_without_ssl") then
log("warn", "Running without SSL support because run_without_ssl is defined in the config");
else
missingdep("LuaSec", {
["Debian/Ubuntu"] = "http://prosody.im/download/start#debian_and_ubuntu";
["luarocks"] = "luarocks install luasec";
["Source"] = "http://www.inf.puc-rio.br/~brunoos/luasec/";
}, "SSL/TLS support will not be available");
end
else
local major, minor, veryminor, patched = ssl._VERSION:match("(%d+)%.(%d+)%.?(%d*)(M?)");
if not major or ((tonumber(major) == 0 and (tonumber(minor) or 0) <= 3 and (tonumber(veryminor) or 0) <= 2) and patched ~= "M") then
log("error", "This version of LuaSec contains a known bug that causes disconnects, see http://prosody.im/doc/depends");
end
end
local encodings, err = softreq "util.encodings"
if not encodings then
if err:match("not found") then
missingdep("util.encodings", { ["Windows"] = "Make sure you have encodings.dll from the Prosody distribution in util/";
["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/encodings.so";
});
else
print "***********************************"
print("util/encodings couldn't be loaded. Check that you have a recent version of libidn");
print ""
print("The full error was:");
print(err)
print "***********************************"
end
fatal = true;
end
local hashes, err = softreq "util.hashes"
if not hashes then
if err:match("not found") then
missingdep("util.hashes", { ["Windows"] = "Make sure you have hashes.dll from the Prosody distribution in util/";
["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/hashes.so";
});
else
print "***********************************"
print("util/hashes couldn't be loaded. Check that you have a recent version of OpenSSL (libcrypto in particular)");
print ""
print("The full error was:");
print(err)
print "***********************************"
end
fatal = true;
end
return not fatal;
end
return _M;
|
