prosody
ed011935c22d
plugins/mod_tls.lua

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plugins/mod_tls.lua @ 9911:ed011935c22d

mod_csi_simple: Break out stanza timestamping into a function for future reuse
author Kim Alvefur <zash@zash.se>
date Sun, 24 Mar 2019 18:32:50 +0100
parent 9854:115b5e32d960
child 9975:ca01c449357f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1523
841d61be198f Remove version number from copyright headers
Matthew Wild <mwild1@gmail.com>
parents: 1219
diff changeset
1 -- Prosody IM
2923
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 2877
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2 -- Copyright (C) 2008-2010 Matthew Wild
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 2877
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5698
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4 --
758
b1885732e979 GPL->MIT!
Matthew Wild <mwild1@gmail.com>
parents: 705
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5 -- This project is MIT/X11 licensed. Please see the
b1885732e979 GPL->MIT!
Matthew Wild <mwild1@gmail.com>
parents: 705
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6 -- COPYING file in the source package for more information.
519
cccd610a0ef9 Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents: 438
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7 --
cccd610a0ef9 Insert copyright/license headers
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parents: 438
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8
3571
675d65036f31 certmanager, hostmanager, mod_tls: Move responsibility for creating per-host SSL contexts to mod_tls, meaning reloading certs is now as trivial as reloading mod_tls
Matthew Wild <mwild1@gmail.com>
parents: 3397
diff changeset
9 local create_context = require "core.certmanager".create_context;
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10 local rawgetopt = require"core.configmanager".rawget;
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5b664c8fef86 forgot to commit mod_tls, oops :)
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parents:
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11 local st = require "util.stanza";
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ba08b8a4eeef Abstract connections with "connection listeners"
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12
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edc63dc72566 mod_legacyauth, mod_saslauth, mod_tls: Pass require_encryption as default option to s2s_require_encryption so the later overrides the former
Kim Alvefur <zash@zash.se>
parents: 6302
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13 local c2s_require_encryption = module:get_option("c2s_require_encryption", module:get_option("require_encryption"));
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14 local s2s_require_encryption = module:get_option("s2s_require_encryption");
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parents: 2925 2932
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15 local allow_s2s_tls = module:get_option("s2s_allow_encryption") ~= false;
5988
177f233b5211 mod_tls: Let s2s_secure_auth override s2s_require_encryption and warn if they differ
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16 local s2s_secure_auth = module:get_option("s2s_secure_auth");
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17
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18 if s2s_secure_auth and s2s_require_encryption == false then
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19 module:log("warn", "s2s_secure_auth implies s2s_require_encryption, but s2s_require_encryption is set to false");
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20 s2s_require_encryption = true;
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21 end
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22
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23 local xmlns_starttls = 'urn:ietf:params:xml:ns:xmpp-tls';
ade70495fe7f mod_tls: Cleanup.
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24 local starttls_attr = { xmlns = xmlns_starttls };
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b6eff3ba13de mod_tls: Build <starttls/> as a stanza instead of with string concatenation
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25 local starttls_initiate= st.stanza("starttls", starttls_attr);
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26 local starttls_proceed = st.stanza("proceed", starttls_attr);
ade70495fe7f mod_tls: Cleanup.
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27 local starttls_failure = st.stanza("failure", starttls_attr);
ade70495fe7f mod_tls: Cleanup.
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28 local c2s_feature = st.stanza("starttls", starttls_attr);
ade70495fe7f mod_tls: Cleanup.
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29 local s2s_feature = st.stanza("starttls", starttls_attr);
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30 if c2s_require_encryption then c2s_feature:tag("required"):up(); end
bd90250ee1ee mod_tls: Rename variables to be less confusing
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31 if s2s_require_encryption then s2s_feature:tag("required"):up(); end
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32
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33 local hosts = prosody.hosts;
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34 local host = hosts[module.host];
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35
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36 local ssl_ctx_c2s, ssl_ctx_s2sout, ssl_ctx_s2sin;
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37 local ssl_cfg_c2s, ssl_cfg_s2sout, ssl_cfg_s2sin;
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38 local err_c2s, err_s2sin, err_s2sout;
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39
c8e3a0caa0a9 mod_tls: Rebuild SSL context objects on configuration reload - #701
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parents: 7959
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40 function module.load()
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41 local NULL = {};
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parents: 6710
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42 local modhost = module.host;
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parents: 6710
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43 local parent = modhost:match("%.(.*)$");
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44
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parents: 6710
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45 local parent_ssl = rawgetopt(parent, "ssl") or NULL;
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46 local host_ssl = rawgetopt(modhost, "ssl") or parent_ssl;
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47
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48 local global_c2s = rawgetopt("*", "c2s_ssl") or NULL;
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49 local parent_c2s = rawgetopt(parent, "c2s_ssl") or NULL;
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50 local host_c2s = rawgetopt(modhost, "c2s_ssl") or parent_c2s;
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51
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52 local global_s2s = rawgetopt("*", "s2s_ssl") or NULL;
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53 local parent_s2s = rawgetopt(parent, "s2s_ssl") or NULL;
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54 local host_s2s = rawgetopt(modhost, "s2s_ssl") or parent_s2s;
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55
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56 local request_client_certs = { verify = { "peer", "client_once", }; };
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57
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58 ssl_ctx_c2s, err_c2s, ssl_cfg_c2s = create_context(host.host, "server", host_c2s, host_ssl, global_c2s); -- for incoming client connections
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59 if not ssl_ctx_c2s then module:log("error", "Error creating context for c2s: %s", err_c2s); end
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60
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61 -- for outgoing server connections
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62 ssl_ctx_s2sout, err_s2sout, ssl_cfg_s2sout = create_context(host.host, "client", host_s2s, host_ssl, global_s2s, request_client_certs);
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63 if not ssl_ctx_s2sout then module:log("error", "Error creating contexts for s2sout: %s", err_s2sout); end
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64
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65 -- for incoming server connections
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66 ssl_ctx_s2sin, err_s2sin, ssl_cfg_s2sin = create_context(host.host, "server", host_s2s, host_ssl, global_s2s, request_client_certs);
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67 if not ssl_ctx_s2sin then module:log("error", "Error creating contexts for s2sin: %s", err_s2sin); end
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68 end
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69
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70 module:hook_global("config-reloaded", module.load);
c8e3a0caa0a9 mod_tls: Rebuild SSL context objects on configuration reload - #701
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71
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72 local function can_do_tls(session)
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73 if not session.conn.starttls then
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74 if not session.secure then
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75 session.log("debug", "Underlying connection does not support STARTTLS");
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76 end
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77 return false;
eb5fba4c8074 mod_tls: Check that connection has starttls method first to prevent offering starttls over tls (thanks Remko and Tobias)
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78 elseif session.ssl_ctx ~= nil then
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7ece186a44d3 mod_tls: Return session.ssl_ctx if not nil, like when doing the full session type check
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79 return session.ssl_ctx;
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80 end
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81 if session.type == "c2s_unauthed" then
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82 if not ssl_ctx_c2s and c2s_require_encryption then
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83 session.log("error", "No TLS context available for c2s. Earlier error was: %s", err_c2s);
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84 end
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85 session.ssl_ctx = ssl_ctx_c2s;
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86 session.ssl_cfg = ssl_cfg_c2s;
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e68ff49fa79b Merge 0.6->0.7
Matthew Wild <mwild1@gmail.com>
parents: 2925 2932
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87 elseif session.type == "s2sin_unauthed" and allow_s2s_tls then
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88 if not ssl_ctx_s2sin and s2s_require_encryption then
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89 session.log("error", "No TLS context available for s2sin. Earlier error was: %s", err_s2sin);
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90 end
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91 session.ssl_ctx = ssl_ctx_s2sin;
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92 session.ssl_cfg = ssl_cfg_s2sin;
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e68ff49fa79b Merge 0.6->0.7
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parents: 2925 2932
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93 elseif session.direction == "outgoing" and allow_s2s_tls then
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94 if not ssl_ctx_s2sout and s2s_require_encryption then
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95 session.log("error", "No TLS context available for s2sout. Earlier error was: %s", err_s2sout);
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96 end
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97 session.ssl_ctx = ssl_ctx_s2sout;
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98 session.ssl_cfg = ssl_cfg_s2sout;
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99 else
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d8029b2e0f43 mod_tls: Log reasons for not being able to do TLS
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100 session.log("debug", "Unknown session type, don't know which TLS context to use");
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101 return false;
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102 end
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103 if not session.ssl_ctx then
a634fe3c21f2 mod_tls: Add debug logging for when TLS should be doable but no ssl context was set
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104 session.log("debug", "Should be able to do TLS but no context available");
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105 return false;
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106 end
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107 return session.ssl_ctx;
2932
d2816fb6c7ea mod_tls: Add s2s_allow_encryption option which, when set to false, disabled TLS for s2s
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parents: 2923
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108 end
d2816fb6c7ea mod_tls: Add s2s_allow_encryption option which, when set to false, disabled TLS for s2s
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parents: 2923
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109
2605
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110 -- Hook <starttls/>
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Waqas Hussain <waqas20@gmail.com>
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111 module:hook("stanza/urn:ietf:params:xml:ns:xmpp-tls:starttls", function(event)
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112 local origin = event.origin;
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113 if can_do_tls(origin) then
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114 (origin.sends2s or origin.send)(starttls_proceed);
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115 origin:reset_stream();
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116 origin.conn:starttls(origin.ssl_ctx);
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117 origin.log("debug", "TLS negotiation started for %s...", origin.type);
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118 origin.secure = false;
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119 else
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120 origin.log("warn", "Attempt to start TLS, but TLS is not available on this %s connection", origin.type);
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121 (origin.sends2s or origin.send)(starttls_failure);
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122 origin:close();
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123 end
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124 return true;
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125 end);
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126
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127 -- Advertize stream feature
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128 module:hook("stream-features", function(event)
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129 local origin, features = event.origin, event.features;
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130 if can_do_tls(origin) then
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131 features:add_child(c2s_feature);
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132 end
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133 end);
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134 module:hook("s2s-stream-features", function(event)
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135 local origin, features = event.origin, event.features;
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136 if can_do_tls(origin) then
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137 features:add_child(s2s_feature);
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138 end
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139 end);
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140
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141 -- For s2sout connections, start TLS if we can
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142 module:hook_tag("http://etherx.jabber.org/streams", "features", function (session, stanza)
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143 module:log("debug", "Received features element");
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144 if can_do_tls(session) and stanza:get_child("starttls", xmlns_starttls) then
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145 module:log("debug", "%s is offering TLS, taking up the offer...", session.to_host);
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146 session.sends2s(starttls_initiate);
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147 return true;
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148 end
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149 end, 500);
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150
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151 module:hook_tag(xmlns_starttls, "proceed", function (session, stanza) -- luacheck: ignore 212/stanza
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152 if session.type == "s2sout_unauthed" and can_do_tls(session) then
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153 module:log("debug", "Proceeding with TLS on s2sout...");
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154 session:reset_stream();
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155 session.conn:starttls(session.ssl_ctx);
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156 session.secure = false;
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157 return true;
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158 end
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159 end);