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annotate mod_tcpproxy/web/xmpp.io.js @ 4877:adc6241e5d16

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mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parents 7dbde05b48a9
children
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1 var xmlns_ibb = "http://jabber.org/protocol/ibb";
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2 var xmlns_tcp = "http://prosody.im/protocol/tcpproxy";
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3
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4 function XMPPIO(xmppconn, xmpptcp_host)
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5 {
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6 this.xmppconn = xmppconn;
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7 this.xmpphost = xmpptcp_host;
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8 this.sid = "FIXME";
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9
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10 this.listeners = [];
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11 return this;
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12 }
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13
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14 XMPPIO.prototype = {
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15 connect: function (host, port)
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16 {
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17 var conn = this;
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18 console.log("Connecting...");
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19
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20 function onConnect()
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21 {
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22 this.xmppconn.addHandler(function (stanza)
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23 {
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24 var data = stanza.getElementsByTagName("data")[0];
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25 if(data)
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26 conn.emit("data", Strophe.Base64.decode(Strophe.getText(data)));
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27 }, null, "message", null, null, this.xmpphost, {});
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28 this.xmppconn.addHandler(function (stanza)
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29 {
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30 var data = stanza.getElementsByTagName("close")[0];
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31 if(close)
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32 {
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33 conn.write = function () { throw "Connection closed"; };
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34 conn.emit("end");
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35 }
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36 }, xmlns_ibb, "iq", "set", null, this.xmpphost, {});
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37 conn.emit("connect");
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38 }
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39
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40 this.xmppconn.sendIQ($iq({to:this.xmpphost,type:"set"})
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41 .c("open", {
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42 "xmlns": xmlns_ibb,
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43 "xmlns:tcp": xmlns_tcp,
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44 "tcp:host": host,
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45 "tcp:port": port.toString(),
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46 "block-size": "4096",
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47 "sid": this.sid.toString(),
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48 "stanza": "message"
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49 }), onConnect,
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50 function () { conn.emit("error"); });
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51 },
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52 emit: function ()
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53 {
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54 console.log("xmpp.io: Emitting "+arguments[0]);
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55 var args = Array.prototype.slice.call(arguments, 1);
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56 var listeners = this.listeners[arguments[0]];
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57 if(listeners)
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58 {
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59 for(var i=0;i<listeners.length;i++)
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60 {
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61 listeners[i][1].apply(listeners[i][0], args);
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62 }
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63 }
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64 },
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65 addListener: function (event, method, obj)
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66 {
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67 if(typeof(obj)=="undefined")
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68 obj = this;
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69 if(!(event in this.listeners))
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70 this.listeners[event] = [];
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71 this.listeners[event].push([obj, method]);
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72 },
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73 write: function (data)
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74 {
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75 return this.xmppconn.send($msg({to:this.xmpphost})
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76 .c("data", {xmlns:xmlns_ibb, sid:this.sid.toString()})
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77 .t(Strophe.Base64.encode(data)));
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78 },
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79 end: function ()
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80 {
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81 return this.xmppconn.send($iq({to:this.xmpphost})
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82 .c("close", {xmlns:xmlns_ibb, sid:this.sid.toString()}));
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83 }
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84 };