annotate mod_smacks/mod_smacks.lua @ 1268:854a3933cfcd

mod_muc_log_http: URL-encode room names. This allows special characters in room names to work. Ideally this escaping shouldn’t be done in the user visible content, but the module’s template system doesn’t currently allow that.
author Waqas Hussain <waqas20@gmail.com>
date Sat, 04 Jan 2014 16:50:57 -0500
parents d7655e634c30
children ddbc1eb8d431
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 local st = require "util.stanza";
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2 local uuid_generate = require "util.uuid".generate;
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4 local t_insert, t_remove = table.insert, table.remove;
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5 local math_min = math.min;
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6 local os_time = os.time;
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7 local tonumber, tostring = tonumber, tostring;
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8 local add_filter = require "util.filters".add_filter;
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9 local timer = require "util.timer";
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10 local datetime = require "util.datetime";
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11
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12 local xmlns_sm = "urn:xmpp:sm:2";
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13 local xmlns_errors = "urn:ietf:params:xml:ns:xmpp-stanzas";
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14 local xmlns_delay = "urn:xmpp:delay";
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16 local sm_attr = { xmlns = xmlns_sm };
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17
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18 local resume_timeout = module:get_option_number("smacks_hibernation_time", 300);
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19 local s2s_smacks = module:get_option_boolean("smacks_enabled_s2s", false);
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20 local max_unacked_stanzas = module:get_option_number("smacks_max_unacked_stanzas", 0);
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713c6791fbcc mod_smacks: Import prosody.core_process_stanza()
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21 local core_process_stanza = prosody.core_process_stanza;
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22 local sessionmanager = require"core.sessionmanager";
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23
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24 local c2s_sessions = module:shared("/*/c2s/sessions");
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25 local session_registry = {};
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26
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27 local function can_do_smacks(session, advertise_only)
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28 if session.smacks then return false, "unexpected-request", "Stream management is already enabled"; end
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30 local session_type = session.type;
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31 if session_type == "c2s" then
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32 if not(advertise_only) and not(session.resource) then -- Fail unless we're only advertising sm
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33 return false, "unexpected-request", "Client must bind a resource before enabling stream management";
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34 end
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35 return true;
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36 elseif s2s_smacks and (session_type == "s2sin" or session_type == "s2sout") then
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37 return true;
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38 end
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39 return false, "service-unavailable", "Stream management is not available for this stream";
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40 end
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41
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42 module:hook("stream-features",
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43 function (event)
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44 if can_do_smacks(event.origin, true) then
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45 event.features:tag("sm", sm_attr):tag("optional"):up():up();
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46 end
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47 end);
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49 module:hook("s2s-stream-features",
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50 function (event)
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51 if can_do_smacks(event.origin, true) then
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52 event.features:tag("sm", sm_attr):tag("optional"):up():up();
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53 end
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54 end);
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55
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56 module:hook_stanza("http://etherx.jabber.org/streams", "features",
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57 function (session, stanza)
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58 if can_do_smacks(session) and stanza:get_child("sm", xmlns_sm) then
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59 session.sends2s(st.stanza("enable", sm_attr));
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60 end
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61 end);
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62
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63 local function wrap_session(session, resume)
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64 -- Overwrite process_stanza() and send()
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65 local queue;
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66 if not resume then
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67 queue = {};
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68 session.outgoing_stanza_queue = queue;
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69 session.last_acknowledged_stanza = 0;
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70 else
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71 queue = session.outgoing_stanza_queue;
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72 end
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74 local _send = session.sends2s or session.send;
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75 local function new_send(stanza)
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76 local attr = stanza.attr;
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77 if attr and not attr.xmlns then -- Stanza in default stream namespace
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78 local cached_stanza = st.clone(stanza);
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79
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80 if cached_stanza and cached_stanza:get_child("delay", xmlns_delay) == nil then
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81 cached_stanza = cached_stanza:tag("delay", { xmlns = xmlns_delay, from = session.host, stamp = datetime.datetime()});
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82 end
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83
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84 queue[#queue+1] = cached_stanza;
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85 end
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86 if session.hibernating then
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87 -- The session is hibernating, no point in sending the stanza
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88 -- over a dead connection. It will be delivered upon resumption.
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89 return true;
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90 end
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91 local ok, err = _send(stanza);
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92 if ok and #queue > max_unacked_stanzas and not session.awaiting_ack and attr and not attr.xmlns then
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93 session.awaiting_ack = true;
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94 return _send(st.stanza("r", sm_attr));
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95 end
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96 return ok, err;
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97 end
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98
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99 if session.sends2s then
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100 session.sends2s = new_send;
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101 else
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102 session.send = new_send;
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103 end
988
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diff changeset
104
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105 local session_close = session.close;
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parents: 987
diff changeset
106 function session.close(...)
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diff changeset
107 if session.resumption_token then
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diff changeset
108 session_registry[session.resumption_token] = nil;
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diff changeset
109 session.resumption_token = nil;
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parents: 987
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110 end
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111 return session_close(...);
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diff changeset
112 end
345
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113
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114 if not resume then
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115 session.handled_stanza_count = 0;
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116 add_filter(session, "stanzas/in", function (stanza)
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117 if not stanza.attr.xmlns then
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118 session.handled_stanza_count = session.handled_stanza_count + 1;
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119 session.log("debug", "Handled %d incoming stanzas", session.handled_stanza_count);
255
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120 end
345
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121 return stanza;
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122 end);
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123 end
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124
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125 return session;
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126 end
201
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parents: 200
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127
345
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128 module:hook_stanza(xmlns_sm, "enable", function (session, stanza)
591
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129 local ok, err, err_text = can_do_smacks(session);
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130 if not ok then
590
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131 session.log("warn", "Failed to enable smacks: %s", err_text); -- TODO: XEP doesn't say we can send error text, should it?
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132 session.send(st.stanza("failed", { xmlns = xmlns_sm }):tag(err, { xmlns = xmlns_errors}));
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133 return true;
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134 end
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135
345
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136 module:log("debug", "Enabling stream management");
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137 session.smacks = true;
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138
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139 wrap_session(session);
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140
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141 local resume_token;
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142 local resume = stanza.attr.resume;
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143 if resume == "true" or resume == "1" then
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144 resume_token = uuid_generate();
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145 session_registry[resume_token] = session;
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146 session.resumption_token = resume_token;
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diff changeset
147 end
576
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diff changeset
148 (session.sends2s or session.send)(st.stanza("enabled", { xmlns = xmlns_sm, id = resume_token, resume = resume }));
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149 return true;
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diff changeset
150 end, 100);
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diff changeset
151
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diff changeset
152 module:hook_stanza(xmlns_sm, "enabled", function (session, stanza)
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153 module:log("debug", "Enabling stream management");
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diff changeset
154 session.smacks = true;
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diff changeset
155
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diff changeset
156 wrap_session(session);
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diff changeset
157
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diff changeset
158 -- FIXME Resume?
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diff changeset
159
345
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160 return true;
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diff changeset
161 end, 100);
160
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162
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163 module:hook_stanza(xmlns_sm, "r", function (origin, stanza)
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164 if not origin.smacks then
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165 module:log("debug", "Received ack request from non-smack-enabled session");
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166 return;
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167 end
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168 module:log("debug", "Received ack request, acking for %d", origin.handled_stanza_count);
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169 -- Reply with <a>
255
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diff changeset
170 (origin.sends2s or origin.send)(st.stanza("a", { xmlns = xmlns_sm, h = tostring(origin.handled_stanza_count) }));
160
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171 return true;
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172 end);
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173
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174 module:hook_stanza(xmlns_sm, "a", function (origin, stanza)
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175 if not origin.smacks then return; end
200
64a573203c20 mod_smacks: Better logic for deciding what is a stanza and what is not, and deciding when to send ack requests
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parents: 160
diff changeset
176 origin.awaiting_ack = nil;
160
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177 -- Remove handled stanzas from outgoing_stanza_queue
258
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diff changeset
178 --log("debug", "ACK: h=%s, last=%s", stanza.attr.h or "", origin.last_acknowledged_stanza or "");
220
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diff changeset
179 local handled_stanza_count = tonumber(stanza.attr.h)-origin.last_acknowledged_stanza;
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diff changeset
180 local queue = origin.outgoing_stanza_queue;
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diff changeset
181 if handled_stanza_count > #queue then
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diff changeset
182 module:log("warn", "The client says it handled %d new stanzas, but we only sent %d :)",
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parents: 202
diff changeset
183 handled_stanza_count, #queue);
345
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diff changeset
184 module:log("debug", "Client h: %d, our h: %d", tonumber(stanza.attr.h), origin.last_acknowledged_stanza);
220
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parents: 202
diff changeset
185 for i=1,#queue do
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diff changeset
186 module:log("debug", "Q item %d: %s", i, tostring(queue[i]));
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diff changeset
187 end
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parents: 202
diff changeset
188 end
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parents: 202
diff changeset
189 for i=1,math_min(handled_stanza_count,#queue) do
160
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diff changeset
190 t_remove(origin.outgoing_stanza_queue, 1);
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diff changeset
191 end
220
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diff changeset
192 origin.last_acknowledged_stanza = origin.last_acknowledged_stanza + handled_stanza_count;
160
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193 return true;
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194 end);
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195
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196 --TODO: Optimise... incoming stanzas should be handled by a per-session
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197 -- function that has a counter as an upvalue (no table indexing for increments,
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198 -- and won't slow non-198 sessions). We can also then remove the .handled flag
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199 -- on stanzas
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200
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201 function handle_unacked_stanzas(session)
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202 local queue = session.outgoing_stanza_queue;
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203 local error_attr = { type = "cancel" };
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diff changeset
204 if #queue > 0 then
202
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parents: 201
diff changeset
205 session.outgoing_stanza_queue = {};
160
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206 for i=1,#queue do
256
57de4a7840ef mod_smacks: Fixes for storing the unacked stanzas so that they can be properly replayed to clients on stream resume
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parents: 255
diff changeset
207 local reply = st.reply(queue[i]);
160
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diff changeset
208 if reply.attr.to ~= session.full_jid then
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parents:
diff changeset
209 reply.attr.type = "error";
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parents:
diff changeset
210 reply:tag("error", error_attr)
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parents:
diff changeset
211 :tag("recipient-unavailable", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"});
256
57de4a7840ef mod_smacks: Fixes for storing the unacked stanzas so that they can be properly replayed to clients on stream resume
Matthew Wild <mwild1@gmail.com>
parents: 255
diff changeset
212 core_process_stanza(session, reply);
160
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parents:
diff changeset
213 end
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parents:
diff changeset
214 end
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parents:
diff changeset
215 end
9a7671720dec mod_smacks: XEP-0198 Stream Management acks. Initial commit - very rough, useful mainly for testing at the moment, most certainly contains bugs :)
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parents:
diff changeset
216 end
9a7671720dec mod_smacks: XEP-0198 Stream Management acks. Initial commit - very rough, useful mainly for testing at the moment, most certainly contains bugs :)
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parents:
diff changeset
217
622
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parents: 595
diff changeset
218 module:hook("pre-resource-unbind", function (event)
ce39df945de1 mod_smacks: Use pre-resource-unbind (0.9 feature) to fix reloadability and multiple host support
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parents: 595
diff changeset
219 local session, err = event.session, event.error;
1024
d7655e634c30 mod_smacks: Allow resumption if the TCP connection is closed from our end, c15cea87036f ensures distinction from cleanly closed streams (thanks Lance)
Kim Alvefur <zash@zash.se>
parents: 994
diff changeset
220 if session.smacks then
257
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Matthew Wild <mwild1@gmail.com>
parents: 256
diff changeset
221 if not session.resumption_token then
08fa42e1ab06 mod_smacks: Fixes for monkey-patched sessionmanager.destroy to handle stream resumption, and to fall back to stock destroy() if the session is not smacks-enabled.
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parents: 256
diff changeset
222 local queue = session.outgoing_stanza_queue;
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parents: 256
diff changeset
223 if #queue > 0 then
08fa42e1ab06 mod_smacks: Fixes for monkey-patched sessionmanager.destroy to handle stream resumption, and to fall back to stock destroy() if the session is not smacks-enabled.
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parents: 256
diff changeset
224 module:log("warn", "Destroying session with %d unacked stanzas:", #queue);
08fa42e1ab06 mod_smacks: Fixes for monkey-patched sessionmanager.destroy to handle stream resumption, and to fall back to stock destroy() if the session is not smacks-enabled.
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parents: 256
diff changeset
225 for i=1,#queue do
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parents: 256
diff changeset
226 module:log("warn", "::%s", tostring(queue[i]));
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parents: 256
diff changeset
227 end
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parents: 256
diff changeset
228 handle_unacked_stanzas(session);
160
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parents:
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229 end
257
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parents: 256
diff changeset
230 else
586
f733e7599ed6 mod_smacks: Add logging to hibernation and session destruction (thanks darkrain)
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parents: 576
diff changeset
231 session.log("debug", "mod_smacks hibernating session for up to %d seconds", resume_timeout);
345
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diff changeset
232 local hibernate_time = os_time(); -- Track the time we went into hibernation
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diff changeset
233 session.hibernating = hibernate_time;
478
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parents: 345
diff changeset
234 local resumption_token = session.resumption_token;
257
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parents: 256
diff changeset
235 timer.add_task(resume_timeout, function ()
586
f733e7599ed6 mod_smacks: Add logging to hibernation and session destruction (thanks darkrain)
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parents: 576
diff changeset
236 session.log("debug", "mod_smacks hibernation timeout reached...");
478
db0f065c4e09 mod_smacks: Don't destroy a session that binds the same resource as a hibernating smacks session (thanks xnyhps for tracking down the problem, though I've used a different fix)
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parents: 345
diff changeset
237 -- We need to check the current resumption token for this resource
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parents: 345
diff changeset
238 -- matches the smacks session this timer is for in case it changed
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parents: 345
diff changeset
239 -- (for example, the client may have bound a new resource and
db0f065c4e09 mod_smacks: Don't destroy a session that binds the same resource as a hibernating smacks session (thanks xnyhps for tracking down the problem, though I've used a different fix)
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parents: 345
diff changeset
240 -- started a new smacks session, or not be using smacks)
810
464ed063a8f2 mod_smacks: Less table indexing!
Kim Alvefur <zash@zash.se>
parents: 757
diff changeset
241 local curr_session = full_sessions[session.full_jid];
987
fabff75bfc3f mod_smacks: If a hibernating session was destroyed before the timeout, don't destroy it again or say that it was resumed
Kim Alvefur <zash@zash.se>
parents: 925
diff changeset
242 if false and session.destroyed then
fabff75bfc3f mod_smacks: If a hibernating session was destroyed before the timeout, don't destroy it again or say that it was resumed
Kim Alvefur <zash@zash.se>
parents: 925
diff changeset
243 session.log("debug", "The session has already been destroyed");
fabff75bfc3f mod_smacks: If a hibernating session was destroyed before the timeout, don't destroy it again or say that it was resumed
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parents: 925
diff changeset
244 elseif curr_session and curr_session.resumption_token == resumption_token
345
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parents: 263
diff changeset
245 -- Check the hibernate time still matches what we think it is,
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parents: 263
diff changeset
246 -- otherwise the session resumed and re-hibernated.
478
db0f065c4e09 mod_smacks: Don't destroy a session that binds the same resource as a hibernating smacks session (thanks xnyhps for tracking down the problem, though I've used a different fix)
Matthew Wild <mwild1@gmail.com>
parents: 345
diff changeset
247 and session.hibernating == hibernate_time then
586
f733e7599ed6 mod_smacks: Add logging to hibernation and session destruction (thanks darkrain)
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parents: 576
diff changeset
248 session.log("debug", "Destroying session for hibernating too long");
345
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parents: 263
diff changeset
249 session_registry[session.resumption_token] = nil;
257
08fa42e1ab06 mod_smacks: Fixes for monkey-patched sessionmanager.destroy to handle stream resumption, and to fall back to stock destroy() if the session is not smacks-enabled.
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parents: 256
diff changeset
250 session.resumption_token = nil;
345
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parents: 263
diff changeset
251 sessionmanager.destroy_session(session);
586
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parents: 576
diff changeset
252 else
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parents: 576
diff changeset
253 session.log("debug", "Session resumed before hibernation timeout, all is well")
257
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parents: 256
diff changeset
254 end
08fa42e1ab06 mod_smacks: Fixes for monkey-patched sessionmanager.destroy to handle stream resumption, and to fall back to stock destroy() if the session is not smacks-enabled.
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parents: 256
diff changeset
255 end);
622
ce39df945de1 mod_smacks: Use pre-resource-unbind (0.9 feature) to fix reloadability and multiple host support
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parents: 595
diff changeset
256 return true; -- Postpone destruction for now
160
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parents:
diff changeset
257 end
258
36648205b10a mod_smacks: Add commented log statement for future debugging
Matthew Wild <mwild1@gmail.com>
parents: 257
diff changeset
258
160
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parents:
diff changeset
259 end
622
ce39df945de1 mod_smacks: Use pre-resource-unbind (0.9 feature) to fix reloadability and multiple host support
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parents: 595
diff changeset
260 end);
345
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parents: 263
diff changeset
261
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
262 module:hook_stanza(xmlns_sm, "resume", function (session, stanza)
925
720b8268778e mod_smacks: Don't allow steam resumption onto a stream after resource binding
Kim Alvefur <zash@zash.se>
parents: 908
diff changeset
263 if session.full_jid then
994
487cd02aada0 mod_smacks: Complain a little louder about clients trying to resume after resource binding
Kim Alvefur <zash@zash.se>
parents: 988
diff changeset
264 session.log("warn", "Tried to resume after resource binding");
925
720b8268778e mod_smacks: Don't allow steam resumption onto a stream after resource binding
Kim Alvefur <zash@zash.se>
parents: 908
diff changeset
265 session.send(st.stanza("failed", sm_attr)
720b8268778e mod_smacks: Don't allow steam resumption onto a stream after resource binding
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parents: 908
diff changeset
266 :tag("unexpected-request", { xmlns = xmlns_errors })
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parents: 908
diff changeset
267 );
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parents: 908
diff changeset
268 return true;
720b8268778e mod_smacks: Don't allow steam resumption onto a stream after resource binding
Kim Alvefur <zash@zash.se>
parents: 908
diff changeset
269 end
720b8268778e mod_smacks: Don't allow steam resumption onto a stream after resource binding
Kim Alvefur <zash@zash.se>
parents: 908
diff changeset
270
345
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
271 local id = stanza.attr.previd;
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
272 local original_session = session_registry[id];
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
273 if not original_session then
588
8042558336b6 mod_smacks: Log message when client tries to resume unknown session
Matthew Wild <mwild1@gmail.com>
parents: 587
diff changeset
274 session.log("debug", "Tried to resume non-existent session with id %s", id);
345
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parents: 263
diff changeset
275 session.send(st.stanza("failed", sm_attr)
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parents: 263
diff changeset
276 :tag("item-not-found", { xmlns = xmlns_errors })
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parents: 263
diff changeset
277 );
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
278 elseif session.username == original_session.username
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parents: 263
diff changeset
279 and session.host == original_session.host then
587
322a14acd974 mod_smacks: Add log message on resume
Matthew Wild <mwild1@gmail.com>
parents: 586
diff changeset
280 session.log("debug", "mod_smacks resuming existing session...");
345
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
281 -- TODO: All this should move to sessionmanager (e.g. session:replace(new_session))
623
c1f3958695ea mod_smacks: If a resumed session still has a connection open, close that connection before resuming
Matthew Wild <mwild1@gmail.com>
parents: 622
diff changeset
282 if original_session.conn then
c1f3958695ea mod_smacks: If a resumed session still has a connection open, close that connection before resuming
Matthew Wild <mwild1@gmail.com>
parents: 622
diff changeset
283 session.log("debug", "mod_smacks closing an old connection for this session");
c1f3958695ea mod_smacks: If a resumed session still has a connection open, close that connection before resuming
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parents: 622
diff changeset
284 local conn = original_session.conn;
640
d87131b29bbd mod_smacks: Remove dependency on connlisteners (use sessions table shared by mod_c2s directly)
Matthew Wild <mwild1@gmail.com>
parents: 625
diff changeset
285 c2s_sessions[conn] = nil;
623
c1f3958695ea mod_smacks: If a resumed session still has a connection open, close that connection before resuming
Matthew Wild <mwild1@gmail.com>
parents: 622
diff changeset
286 conn:close();
c1f3958695ea mod_smacks: If a resumed session still has a connection open, close that connection before resuming
Matthew Wild <mwild1@gmail.com>
parents: 622
diff changeset
287 end
345
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
288 original_session.ip = session.ip;
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
289 original_session.conn = session.conn;
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
290 original_session.send = session.send;
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
291 original_session.stream = session.stream;
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
292 original_session.secure = session.secure;
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
293 original_session.hibernating = nil;
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
294 local filter = original_session.filter;
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
295 local stream = session.stream;
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
296 local log = session.log;
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
297 function original_session.data(data)
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parents: 263
diff changeset
298 data = filter("bytes/in", data);
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
299 if data then
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
300 local ok, err = stream:feed(data);
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
301 if ok then return; end
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
Matthew Wild <mwild1@gmail.com>
parents: 263
diff changeset
302 log("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " "):gsub("[%z\1-\31]", "_"));
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
303 original_session:close("xml-not-well-formed");
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
Matthew Wild <mwild1@gmail.com>
parents: 263
diff changeset
304 end
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
Matthew Wild <mwild1@gmail.com>
parents: 263
diff changeset
305 end
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
306 wrap_session(original_session, true);
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
307 -- Inform xmppstream of the new session (passed to its callbacks)
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
308 stream:set_session(original_session);
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
309 -- Similar for connlisteners
640
d87131b29bbd mod_smacks: Remove dependency on connlisteners (use sessions table shared by mod_c2s directly)
Matthew Wild <mwild1@gmail.com>
parents: 625
diff changeset
310 c2s_sessions[session.conn] = original_session;
345
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
311
445178d15b51 mod_smacks: Merge mod_fastreconnect (resumption support), fix a number of bugs, refactor the code and add some more comments to explain process
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parents: 263
diff changeset
312 session.send(st.stanza("resumed", { xmlns = xmlns_sm,
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313 h = original_session.handled_stanza_count, previd = id }));
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314
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315 -- Fake an <a> with the h of the <resume/> from the client
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316 original_session:dispatch_stanza(st.stanza("a", { xmlns = xmlns_sm,
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317 h = stanza.attr.h }));
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318
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319 -- Ok, we need to re-send any stanzas that the client didn't see
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320 -- ...they are what is now left in the outgoing stanza queue
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321 local queue = original_session.outgoing_stanza_queue;
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322 for i=1,#queue do
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323 session.send(queue[i]);
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324 end
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325 else
755
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326 module:log("warn", "Client %s@%s[%s] tried to resume stream for %s@%s[%s]",
345
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327 session.username or "?", session.host or "?", session.type,
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328 original_session.username or "?", original_session.host or "?", original_session.type);
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329 session.send(st.stanza("failed", sm_attr)
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330 :tag("not-authorized", { xmlns = xmlns_errors }));
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331 end
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332 return true;
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333 end);