prosody
e273ef869794
util/dependencies.lua

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util/dependencies.lua @ 11763:e273ef869794

net.server: Pikc server_epoll as unconditional default Previously it would have gone for server_select if util.poll was for some reason not available, which should be never these days. And even if it was, best to flush it out by throwing loud errors so users notice. Then they can work around it by using select until we delete that one.
author Kim Alvefur <zash@zash.se>
date Fri, 03 Sep 2021 17:39:00 +0200
parent 11141:a5acd6354845
child 11958:31f83a645ce6
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rev   line source
1523
841d61be198f Remove version number from copyright headers
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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 --
cccd610a0ef9 Insert copyright/license headers
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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 local platform_table = require "util.human.io".table({ { width = 15, align = "right" }, { width = "100%" } });
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11
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12 -- Required to be able to find packages installed with luarocks
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13 if not softreq "luarocks.loader" then -- LuaRocks 2.x
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14 softreq "luarocks.require"; -- LuaRocks <1.x
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15 end
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16
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17 local function missingdep(name, sources, msg, err) -- luacheck: ignore err
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18 -- TODO print something about the underlying error, useful for debugging
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19 print("");
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20 print("**************************");
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21 print("Prosody was unable to find "..tostring(name));
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22 print("This package can be obtained in the following ways:");
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23 print("");
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24 for _, row in ipairs(sources) do
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25 print(platform_table(row));
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26 end
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27 print("");
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28 print(msg or (name.." is required for Prosody to run, so we will now exit."));
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a5a080c12c96 Update every link to the documentation to use HTTPS
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29 print("More help can be found on our website, at https://prosody.im/doc/depends");
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30 print("**************************");
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31 print("");
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32 end
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33
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34 local function check_dependencies()
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35 if _VERSION < "Lua 5.1" then
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36 print "***********************************"
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37 print("Unsupported Lua version: ".._VERSION);
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38 print("At least Lua 5.1 is required.");
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39 print "***********************************"
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40 return false;
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41 end
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42
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43 local fatal;
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44
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45 local lxp, err = softreq "lxp"
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46
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47 if not lxp then
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48 missingdep("luaexpat", {
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49 { "Debian/Ubuntu", "sudo apt-get install lua-expat" };
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50 { "luarocks", "luarocks install luaexpat" };
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51 { "Source", "http://matthewwild.co.uk/projects/luaexpat/" };
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52 }, nil, err);
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53 fatal = true;
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54 end
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55
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56 local socket, err = softreq "socket"
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57
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58 if not socket then
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59 missingdep("luasocket", {
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60 { "Debian/Ubuntu", "sudo apt-get install lua-socket" };
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61 { "luarocks", "luarocks install luasocket" };
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62 { "Source", "http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/" };
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63 }, nil, err);
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64 fatal = true;
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65 elseif not socket.tcp4 then
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66 -- COMPAT LuaSocket before being IP-version agnostic
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67 socket.tcp4 = socket.tcp;
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68 socket.udp4 = socket.udp;
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69 end
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70
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71 local lfs, err = softreq "lfs"
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72 if not lfs then
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73 missingdep("luafilesystem", {
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74 { "luarocks", "luarocks install luafilesystem" };
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75 { "Debian/Ubuntu", "sudo apt-get install lua-filesystem" };
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76 { "Source", "http://www.keplerproject.org/luafilesystem/" };
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77 }, nil, err);
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78 fatal = true;
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79 end
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80
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81 local ssl, err = softreq "ssl"
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82
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83 if not ssl then
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84 missingdep("LuaSec", {
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85 { "Debian/Ubuntu", "sudo apt-get install lua-sec" };
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86 { "luarocks", "luarocks install luasec" };
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87 { "Source", "https://github.com/brunoos/luasec" };
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88 }, "SSL/TLS support will not be available", err);
413
4b61529d0884 Refuse to run without SSL/TLS unless run_without_ssl is set in config
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89 end
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90
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91 local bit, err = softreq"util.bitcompat";
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92
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93 if not bit then
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94 missingdep("lua-bitops", {
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95 { "Debian/Ubuntu", "sudo apt-get install lua-bitop" };
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96 { "luarocks", "luarocks install luabitop" };
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97 { "Source", "http://bitop.luajit.org/" };
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98 }, "WebSocket support will not be available", err);
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99 end
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100
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101 local unbound, err = softreq"lunbound"; -- luacheck: ignore 211/err
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102 if not unbound then -- luacheck: ignore 542
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103 --[[ TODO Re-enable once packages are available
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104 missingdep("lua-unbound", {
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105 { "luarocks", "luarocks install luaunbound" };
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106 { "Source", "https://www.zash.se/luaunbound.html" };
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107 }, "Old DNS resolver library will be used", err);
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108 --]]
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109 else
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110 package.preload["net.adns"] = function ()
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111 local ub = require "net.unbound";
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112 return ub;
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113 end
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114 end
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115
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116 local encodings, err = softreq "util.encodings"
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117 if not encodings then
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118 if err:match("module '[^']*' not found") then
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Kim Alvefur <zash@zash.se>
parents: 7813
diff changeset
119 missingdep("util.encodings", {
10906
a1fed82c44b9 util.dependencies: Use util.human.io.table to replace custom layout code
Matthew Wild <mwild1@gmail.com>
parents: 10535
diff changeset
120 { "Windows", "Make sure you have encodings.dll from the Prosody distribution in util/" };
a1fed82c44b9 util.dependencies: Use util.human.io.table to replace custom layout code
Matthew Wild <mwild1@gmail.com>
parents: 10535
diff changeset
121 { "GNU/Linux", "Run './configure' and 'make' in the Prosody source directory to build util/encodings.so" };
7875
3fbfd7210d78 util.dependencies: Normalize whitespace
Kim Alvefur <zash@zash.se>
parents: 7813
diff changeset
122 });
2510
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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
123 else
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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
124 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
125 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
126 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
127 print("The full error was:");
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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
128 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
129 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
130 end
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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
131 fatal = true;
2169
c06fdb6b57bd util.dependencies: Log an error if the current version of LuaSec installed contains The Bug (thanks Remko)
Matthew Wild <mwild1@gmail.com>
parents: 2158
diff changeset
132 end
408
eb1a0960cefb Friendlier messages on missing dependencies
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
133
2510
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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
134 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
135 if not hashes then
7264
6d97895c2bd7 util.dependencies: Show the full error when a symbol is not found (i.e., when running Prosody with the wrong version of Lua).
Thijs Alkemade <me@thijsalkema.de>
parents: 7007
diff changeset
136 if err:match("module '[^']*' not found") then
7875
3fbfd7210d78 util.dependencies: Normalize whitespace
Kim Alvefur <zash@zash.se>
parents: 7813
diff changeset
137 missingdep("util.hashes", {
10906
a1fed82c44b9 util.dependencies: Use util.human.io.table to replace custom layout code
Matthew Wild <mwild1@gmail.com>
parents: 10535
diff changeset
138 { "Windows", "Make sure you have hashes.dll from the Prosody distribution in util/" };
a1fed82c44b9 util.dependencies: Use util.human.io.table to replace custom layout code
Matthew Wild <mwild1@gmail.com>
parents: 10535
diff changeset
139 { "GNU/Linux", "Run './configure' and 'make' in the Prosody source directory to build util/hashes.so" };
7875
3fbfd7210d78 util.dependencies: Normalize whitespace
Kim Alvefur <zash@zash.se>
parents: 7813
diff changeset
140 });
3fbfd7210d78 util.dependencies: Normalize whitespace
Kim Alvefur <zash@zash.se>
parents: 7813
diff changeset
141 else
2510
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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
142 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
143 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
144 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
145 print("The full error was:");
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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
146 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
147 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
148 end
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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
149 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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
150 end
7767
36bf9ed87ae1 util.dependencies: Add check and info about lua-bitops (for mod_websockets)
Kim Alvefur <zash@zash.se>
parents: 7766
diff changeset
151
2510
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
Matthew Wild <mwild1@gmail.com>
parents: 2299
diff changeset
152 return not fatal;
408
eb1a0960cefb Friendlier messages on missing dependencies
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
153 end
eb1a0960cefb Friendlier messages on missing dependencies
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
154
6777
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Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
155 local function log_warnings()
10049
c523642ea293 util.dependencies: Increase Lua version to warn about to 5.4
Kim Alvefur <zash@zash.se>
parents: 9560
diff changeset
156 if _VERSION > "Lua 5.3" then
7007
e28fbe6dd424 util.dependencies: Use prosody.log() instead of global log()
Matthew Wild <mwild1@gmail.com>
parents: 6778
diff changeset
157 prosody.log("warn", "Support for %s is experimental, please report any issues", _VERSION);
6778
4009ae66e0f0 util.dependencies: Only abort on Lua versions before 5.1, log a warning about 5.2 and above for now
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
158 end
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
159 local ssl = softreq"ssl";
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
Matthew Wild <mwild1@gmail.com>
parents: 2925
diff changeset
160 if ssl then
f93163081b3c prosody, prosodyctl, util.dependencies: Split checking and logging of dependencies so we can check hard deps before the config and logging is loaded
Matthew Wild <mwild1@gmail.com>
parents: 2925
diff changeset
161 local major, minor, veryminor, patched = ssl._VERSION:match("(%d+)%.(%d+)%.?(%d*)(M?)");
f93163081b3c prosody, prosodyctl, util.dependencies: Split checking and logging of dependencies so we can check hard deps before the config and logging is loaded
Matthew Wild <mwild1@gmail.com>
parents: 2925
diff changeset
162 if not major or ((tonumber(major) == 0 and (tonumber(minor) or 0) <= 3 and (tonumber(veryminor) or 0) <= 2) and patched ~= "M") then
7359
a5a080c12c96 Update every link to the documentation to use HTTPS
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 7264
diff changeset
163 prosody.log("error", "This version of LuaSec contains a known bug that causes disconnects, see https://prosody.im/doc/depends");
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
Matthew Wild <mwild1@gmail.com>
parents: 2925
diff changeset
164 end
f93163081b3c prosody, prosodyctl, util.dependencies: Split checking and logging of dependencies so we can check hard deps before the config and logging is loaded
Matthew Wild <mwild1@gmail.com>
parents: 2925
diff changeset
165 end
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
166 local lxp = softreq"lxp";
4426
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
Waqas Hussain <waqas20@gmail.com>
parents: 4236
diff changeset
167 if lxp then
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
Waqas Hussain <waqas20@gmail.com>
parents: 4236
diff changeset
168 if not pcall(lxp.new, { StartDoctypeDecl = false }) then
7007
e28fbe6dd424 util.dependencies: Use prosody.log() instead of global log()
Matthew Wild <mwild1@gmail.com>
parents: 6778
diff changeset
169 prosody.log("error", "The version of LuaExpat on your system leaves Prosody "
4426
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
Waqas Hussain <waqas20@gmail.com>
parents: 4236
diff changeset
170 .."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
Matthew Wild <mwild1@gmail.com>
parents: 4426
diff changeset
171 .."LuaExpat 1.3.0 or higher as soon as possible. See "
7359
a5a080c12c96 Update every link to the documentation to use HTTPS
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 7264
diff changeset
172 .."https://prosody.im/doc/depends#luaexpat for more information.");
6043
29d2dd705148 util.dependencies: Log error when LuaExpat is not capable of enforcing stanza size limits
Matthew Wild <mwild1@gmail.com>
parents: 4426
diff changeset
173 end
29d2dd705148 util.dependencies: Log error when LuaExpat is not capable of enforcing stanza size limits
Matthew Wild <mwild1@gmail.com>
parents: 4426
diff changeset
174 if not lxp.new({}).getcurrentbytecount then
7007
e28fbe6dd424 util.dependencies: Use prosody.log() instead of global log()
Matthew Wild <mwild1@gmail.com>
parents: 6778
diff changeset
175 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
Matthew Wild <mwild1@gmail.com>
parents: 4426
diff changeset
176 .."stanza size limits, which may leave servers on untrusted "
29d2dd705148 util.dependencies: Log error when LuaExpat is not capable of enforcing stanza size limits
Matthew Wild <mwild1@gmail.com>
parents: 4426
diff changeset
177 .."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
Matthew Wild <mwild1@gmail.com>
parents: 4426
diff changeset
178 .."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
Matthew Wild <mwild1@gmail.com>
parents: 4426
diff changeset
179 .."soon as possible. See "
7359
a5a080c12c96 Update every link to the documentation to use HTTPS
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 7264
diff changeset
180 .."https://prosody.im/doc/depends#luaexpat for more information.");
4426
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
Waqas Hussain <waqas20@gmail.com>
parents: 4236
diff changeset
181 end
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
Waqas Hussain <waqas20@gmail.com>
parents: 4236
diff changeset
182 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
Matthew Wild <mwild1@gmail.com>
parents: 2925
diff changeset
183 end
742
b9f59372eb4e util.dependencies: Show useful messages when our own libraries are not found, too
Matthew Wild <mwild1@gmail.com>
parents: 615
diff changeset
184
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
185 return {
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
186 softreq = softreq;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
187 missingdep = missingdep;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
188 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
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
189 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
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
190 };