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util/dependencies.lua @ 9273:f2258e9750cf
mod_vcard_legacy: Include avatar data even if metadata can't be loaded
Normally both nodes should have the same configuration and matching
items, but we can't depend on it without having some code that enforces
it, which does not exist at the time of this commit.
Including the avatar itself should be prioritised. The image format can
be derived from magic bytes.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Fri, 07 Sep 2018 01:08:27 +0200 (2018-09-06) |
parent | 8235:7d9a2c200736 |
child | 9494:b19f676203fd |
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-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local 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 local 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 https://prosody.im/doc/depends"); print("**************************"); print(""); end -- COMPAT w/pre-0.8 Debian: The Debian config file used to use -- util.ztact, which has been removed from Prosody in 0.8. This -- is to log an error for people who still use it, so they can -- update their configs. package.preload["util.ztact"] = function () if not package.loaded["core.loggingmanager"] then error("util.ztact has been removed from Prosody and you need to fix your config " .."file. More information can be found at https://prosody.im/doc/packagers#ztact", 0); else error("module 'util.ztact' has been deprecated in Prosody 0.8."); end end; local function check_dependencies() if _VERSION < "Lua 5.1" then print "***********************************" print("Unsupported Lua version: ".._VERSION); print("At least Lua 5.1 is required."); print "***********************************" return false; end local fatal; local lxp = softreq "lxp" if not lxp then missingdep("luaexpat", { ["Debian/Ubuntu"] = "sudo apt-get install lua-expat"; ["luarocks"] = "luarocks install luaexpat"; ["Source"] = "http://matthewwild.co.uk/projects/luaexpat/"; }); fatal = true; end local socket = softreq "socket" if not socket then missingdep("luasocket", { ["Debian/Ubuntu"] = "sudo apt-get install lua-socket"; ["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 lua-filesystem"; ["Source"] = "http://www.keplerproject.org/luafilesystem/"; }); fatal = true; end local ssl = softreq "ssl" if not ssl then missingdep("LuaSec", { ["Debian/Ubuntu"] = "sudo apt-get install lua-sec"; ["luarocks"] = "luarocks install luasec"; ["Source"] = "https://github.com/brunoos/luasec"; }, "SSL/TLS support will not be available"); end local bit = _G.bit32 or softreq"bit"; if not bit then missingdep("lua-bitops", { ["Debian/Ubuntu"] = "sudo apt-get install lua-bitop"; ["luarocks"] = "luarocks install luabitop"; ["Source"] = "http://bitop.luajit.org/"; }, "WebSocket support will not be available"); end local encodings, err = softreq "util.encodings" if not encodings then if err:match("module '[^']*' 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("module '[^']*' 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 local function log_warnings() if _VERSION > "Lua 5.2" then prosody.log("warn", "Support for %s is experimental, please report any issues", _VERSION); end local ssl = softreq"ssl"; if ssl then 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 prosody.log("error", "This version of LuaSec contains a known bug that causes disconnects, see https://prosody.im/doc/depends"); end end local lxp = softreq"lxp"; if lxp then if not pcall(lxp.new, { StartDoctypeDecl = false }) then prosody.log("error", "The version of LuaExpat on your system leaves Prosody " .."vulnerable to denial-of-service attacks. You should upgrade to " .."LuaExpat 1.3.0 or higher as soon as possible. See " .."https://prosody.im/doc/depends#luaexpat for more information."); end if not lxp.new({}).getcurrentbytecount then prosody.log("error", "The version of LuaExpat on your system does not support " .."stanza size limits, which may leave servers on untrusted " .."networks (e.g. the internet) vulnerable to denial-of-service " .."attacks. You should upgrade to LuaExpat 1.3.0 or higher as " .."soon as possible. See " .."https://prosody.im/doc/depends#luaexpat for more information."); end end end return { softreq = softreq; missingdep = missingdep; check_dependencies = check_dependencies; log_warnings = log_warnings; };