Ejabberd 在可用后关闭 BOSH 会话

Posted 2023-02-24

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【中文标题】Ejabberd 在可用后关闭 BOSH 会话【英文标题】：Ejabberd Closes BOSH session after available presence 【发布时间】：2015-01-10 16:35:34 【问题描述】：

我不明白为什么 Ejabberd（14.07 和 14.12）在收到同一会话的“可用”节后关闭 BOSH 会话。

我正在使用 JsJac 作为 Web 客户端库，并且会话正在预绑定服务器端，并且 JsJac 在第一页加载和重启时都在执行“继承”。发生这种情况的情况是在成功连接和聊天后，我使用 chrome 开发人员工具禁用了网络连接。

Ejabberd 每 15 秒 ping 一次，并在超时时设置为“kill”。 ejabberd.yml 中 BOSH 的 Inactivity_timeout 设置为 480。

然后用户可以单击链接尝试重新连接。这是调用与初始预绑定+客户端继承完全相同的函数。在看似成功的重新连接后，几秒钟后，这是：

Close session for anonymous.c6502a950667fc79c3e1534559cc02e0@localhost/7f317c7fcbb9fb1b79c414c2d8afe05c

出现在 ejabberd 日志中，并在聊天中向对方发送不可用的节。

问题：有人知道为什么 BOSH 会话可能会关闭吗？

这是 Ejabberd 日志的相关部分

2015-01-09 18:25:21.308 [debug] <0.2710.0>@ejabberd_receiver:process_data:343 Received XML on stream = <<"<presence from=\"anonymous.c6502a950667fc79c3e1534559cc02e0@jaxlecho.localhost\" type=\"available\"/>">>
2015-01-09 18:25:21.309 [debug] <0.2710.0>@shaper:update:117 State: maxrate,50000,1899.4311619841992,1420824321273332, Size=97
M=0.9887812185897407, I=35.836
2015-01-09 18:25:21.390 [info] <0.2709.0>@ejabberd_listener:accept:313 (#Port<0.41723>) Accepted connection ::FFFF:127.0.0.1:58483 -> ::FFFF:127.0.0.1:5280
2015-01-09 18:25:21.391 [debug] <0.5331.0>@ejabberd_http:init:145 S: [[<<"presence">>],mod_webpresence,[<<"captcha">>],ejabberd_captcha,[<<"admin">>],ejabberd_web_admin,[<<"http-bind">>],mod_http_bind,[<<"http-poll">>],ejabberd_http_poll]
2015-01-09 18:25:21.391 [info] <0.5331.0>@ejabberd_http:init:149 started: gen_tcp,#Port<0.41723>
2015-01-09 18:25:21.392 [debug] <0.5331.0>@ejabberd_http:process_header:277 (#Port<0.41723>) http query: 'POST' /http-bind
2015-01-09 18:25:21.392 [debug] <0.5331.0>@ejabberd_http:process_request:438 client data: <<"<body rid='876185' sid='a1e29cded4325f591bdc5b3646a8f3c78553cdd8' xmlns='http://jabber.org/protocol/httpbind' key='38516e6b293e317ee957f6ef74fa23c68a003d19'/>">>
2015-01-09 18:25:21.392 [debug] <0.5331.0>@ejabberd_http:process:350 [<<"http-bind">>] matches [<<"http-bind">>]
2015-01-09 18:25:21.393 [debug] <0.5331.0>@ejabberd_http:process:354 ['Accept-Language',<<"en-US,en;q=0.8,es;q=0.6,und;q=0.4,nl;q=0.2,ca;q=0.2">>,'Accept-Encoding',<<"gzip, deflate">>,'Referer',<<"http://localhost:9080/">>,'Accept',<<"*/*">>,'Content-Type',<<"text/xml; charset=UTF-8">>,'User-Agent',<<"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (Khtml, like Gecko) Chrome/39.0.2171.95 Safari/537.36">>,<<"Origin">>,<<"http://localhost:9080">>,'Content-Length',<<"158">>,'Connection',<<"close">>,'Host',<<"vagrant.localhost">>]
2015-01-09 18:25:21.393 [debug] <0.5331.0>@mod_http_bind:process:68 Incoming data: <body rid='876185' sid='a1e29cded4325f591bdc5b3646a8f3c78553cdd8' xmlns='http://jabber.org/protocol/httpbind' key='38516e6b293e317ee957f6ef74fa23c68a003d19'/>
2015-01-09 18:25:21.393 [debug] <0.5331.0>@ejabberd_http_bind:parse_request:1128 --- incoming data --- 
<body rid='876185' sid='a1e29cded4325f591bdc5b3646a8f3c78553cdd8' xmlns='http://jabber.org/protocol/httpbind' key='38516e6b293e317ee957f6ef74fa23c68a003d19'/>
 --- END --- 
2015-01-09 18:25:21.394 [debug] <0.5331.0>@ejabberd_http_bind:http_put:792 Looking for session: <<"a1e29cded4325f591bdc5b3646a8f3c78553cdd8">>
2015-01-09 18:25:21.394 [debug] <0.4052.0>@ejabberd_http_bind:handle_sync_event:440 New request: http_put,876185,[<<"xmlns">>,<<"http://jabber.org/protocol/httpbind">>,<<"rid">>,<<"876185">>,<<"sid">>,<<"a1e29cded4325f591bdc5b3646a8f3c78553cdd8">>,<<"key">>,<<"38516e6b293e317ee957f6ef74fa23c68a003d19">>],[],158,1,<<>>,0,0,0,0,0,65535,32512,1,58483
2015-01-09 18:25:21.395 [debug] <0.4052.0>@ejabberd_http_bind:handle_http_put_event:575 New request: http_put,876185,[<<"xmlns">>,<<"http://jabber.org/protocol/httpbind">>,<<"rid">>,<<"876185">>,<<"sid">>,<<"a1e29cded4325f591bdc5b3646a8f3c78553cdd8">>,<<"key">>,<<"38516e6b293e317ee957f6ef74fa23c68a003d19">>],[],158,1,<<>>,0,0,0,0,0,65535,32512,1,58483
2015-01-09 18:25:21.395 [debug] <0.4052.0>@ejabberd_http_bind:rid_allow:866 Previous rid / New rid: 876184/876185
2015-01-09 18:25:21.396 [debug] <0.4052.0>@ejabberd_http_bind:process_http_put:608 Actually processing request: http_put,876185,[<<"xmlns">>,<<"http://jabber.org/protocol/httpbind">>,<<"rid">>,<<"876185">>,<<"sid">>,<<"a1e29cded4325f591bdc5b3646a8f3c78553cdd8">>,<<"key">>,<<"38516e6b293e317ee957f6ef74fa23c68a003d19">>],[],158,1,<<>>,0,0,0,0,0,65535,32512,1,58483
2015-01-09 18:25:21.396 [debug] <0.4052.0>@ejabberd_http_bind:process_http_put:619 Key/OldKey/NextKey: 38516e6b293e317ee957f6ef74fa23c68a003d19/85e12ff1c2c9590328a5f0a1e58c14e52a8c6c42/85e12ff1c2c9590328a5f0a1e58c14e52a8c6c42
2015-01-09 18:25:21.397 [debug] <0.4052.0>@ejabberd_http_bind:process_http_put:659  -- SaveKey: 38516e6b293e317ee957f6ef74fa23c68a003d19
2015-01-09 18:25:21.397 [debug] <0.4052.0>@ejabberd_http_bind:process_http_put:671 reqlist: [hbr,876185,<<"85e12ff1c2c9590328a5f0a1e58c14e52a8c6c42">>,[],hbr,876184,<<"85e12ff1c2c9590328a5f0a1e58c14e52a8c6c42">>,[xmlstreamelement,xmlel,<<"presence">>,[<<"from">>,<<"anonymous.c6502a950667fc79c3e1534559cc02e0@jaxlecho.localhost">>,<<"to">>,<<"agent1@localhost/cb_operator_1420818758533">>,<<"type">>,<<"available">>,<<"show">>,<<"chat">>],[]]]
2015-01-09 18:25:21.398 [debug] <0.4052.0>@ejabberd_http_bind:process_http_put:717 really sending now: []
2015-01-09 18:25:31.193 [debug] <0.2648.0>@ejabberd_router:do_route:322 route
    from jid,<<>>,<<"localhost">>,<<>>,<<>>,<<"localhost">>,<<>>
    to jid,<<"agent1">>,<<"localhost">>,<<"cb_operator_1420818758533">>,<<"agent1">>,<<"localhost">>,<<"cb_operator_1420818758533">>
    packet xmlel,<<"iq">>,[<<"id">>,<<"4293567110">>,<<"type">>,<<"get">>],[xmlel,<<"ping">>,[<<"xmlns">>,<<"urn:xmpp:ping">>],[]]
2015-01-09 18:25:31.194 [debug] <0.2648.0>@ejabberd_local:do_route:296 local route
    from jid,<<>>,<<"localhost">>,<<>>,<<>>,<<"localhost">>,<<>>
    to jid,<<"agent1">>,<<"localhost">>,<<"cb_operator_1420818758533">>,<<"agent1">>,<<"localhost">>,<<"cb_operator_1420818758533">>
    packet xmlel,<<"iq">>,[<<"id">>,<<"4293"...>>,<<"type">>,<<...>>],[xmlel,<<...>>,...]
2015-01-09 18:25:31.194 [debug] <0.2648.0>@ejabberd_sm:do_route:514 session manager
    from jid,<<>>,<<"localhost">>,<<>>,<<>>,<<"localhost">>,<<>>
    to jid,<<"agent1">>,<<"localhost">>,<<"cb_operator_1420818758533">>,<<"agent1">>,<<"localhost">>,<<"cb_operator_1420818758533">>
    packet xmlel,<<"iq">>,[<<"id">>,<<"4293"...>>,<<"type">>,<<...>>],[xmlel,<<...>>,...]
2015-01-09 18:25:31.194 [debug] <0.2648.0>@ejabberd_sm:do_route:612 sending to process <0.4053.0>
2015-01-09 18:25:31.195 [debug] <0.5331.0>@ejabberd_http_bind:prepare_response:914 OutPacket: [xmlstreamelement,xmlel,<<"iq">>,[<<"from">>,<<"localhost">>,<<"to">>,<<"agent1@localhost/cb_operator_1420818758533">>,<<"id">>,<<"4293567110">>,<<"type">>,<<"get">>],[xmlel,<<"ping">>,[<<"xmlns">>,<<"urn:xmpp:ping">>],[]]]
2015-01-09 18:25:31.195 [debug] <0.5331.0>@ejabberd_http_bind:send_outpacket:1056  --- outgoing data --- 
<body xmlns='http://jabber.org/protocol/httpbind'><iq xmlns='jabber:client' from='localhost' to='agent1@localhost/cb_operator_1420818758533' id='4293567110' type='get'><ping xmlns='urn:xmpp:ping'/></iq></body>
 --- END --- 
2015-01-09 18:25:31.228 [info] <0.2709.0>@ejabberd_listener:accept:313 (#Port<0.41753>) Accepted connection ::FFFF:127.0.0.1:58484 -> ::FFFF:127.0.0.1:5280
2015-01-09 18:25:31.230 [debug] <0.5332.0>@ejabberd_http:init:145 S: [[<<"presence">>],mod_webpresence,[<<"captcha">>],ejabberd_captcha,[<<"admin">>],ejabberd_web_admin,[<<"http-bind">>],mod_http_bind,[<<"http-poll">>],ejabberd_http_poll]
2015-01-09 18:25:31.231 [info] <0.5332.0>@ejabberd_http:init:149 started: gen_tcp,#Port<0.41753>
2015-01-09 18:25:31.231 [debug] <0.5332.0>@ejabberd_http:process_header:277 (#Port<0.41753>) http query: 'POST' /http-bind
2015-01-09 18:25:31.231 [debug] <0.5332.0>@ejabberd_http:process_request:438 client data: <<"<body rid='876186' sid='a1e29cded4325f591bdc5b3646a8f3c78553cdd8' xmlns='http://jabber.org/protocol/httpbind' key='9cffab80935471f419ce5c9201475df5935108d5'><iq xmlns=\"jabber:client\" to=\"localhost\" id=\"4293567110\" type=\"result\"><ping xmlns=\"urn:xmpp:ping\"/></iq></body>">>
2015-01-09 18:25:31.231 [debug] <0.5332.0>@ejabberd_http:process:350 [<<"http-bind">>] matches [<<"http-bind">>]
2015-01-09 18:25:31.232 [debug] <0.5332.0>@ejabberd_http:process:354 ['Accept-Language',<<"en-US,en;q=0.8,es;q=0.6,und;q=0.4,nl;q=0.2,ca;q=0.2">>,'Accept-Encoding',<<"gzip, deflate">>,'Referer',<<"http://localhost:9080/">>,'Accept',<<"*/*">>,'Content-Type',<<"text/xml; charset=UTF-8">>,'User-Agent',<<"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36">>,<<"Origin">>,<<"http://localhost:9080">>,'Content-Length',<<"269">>,'Connection',<<"close">>,'Host',<<"vagrant.localhost">>]
2015-01-09 18:25:31.233 [debug] <0.5332.0>@mod_http_bind:process:68 Incoming data: <body rid='876186' sid='a1e29cded4325f591bdc5b3646a8f3c78553cdd8' xmlns='http://jabber.org/protocol/httpbind' key='9cffab80935471f419ce5c9201475df5935108d5'><iq xmlns="jabber:client" to="localhost" id="4293567110" type="result"><ping xmlns="urn:xmpp:ping"/></iq></body>
2015-01-09 18:25:31.233 [debug] <0.5332.0>@ejabberd_http_bind:parse_request:1128 --- incoming data --- 
<body rid='876186' sid='a1e29cded4325f591bdc5b3646a8f3c78553cdd8' xmlns='http://jabber.org/protocol/httpbind' key='9cffab80935471f419ce5c9201475df5935108d5'><iq xmlns="jabber:client" to="localhost" id="4293567110" type="result"><ping xmlns="urn:xmpp:ping"/></iq></body>
 --- END --- 
2015-01-09 18:25:31.234 [debug] <0.5332.0>@ejabberd_http_bind:http_put:792 Looking for session: <<"a1e29cded4325f591bdc5b3646a8f3c78553cdd8">>
2015-01-09 18:25:31.234 [debug] <0.4052.0>@ejabberd_http_bind:handle_sync_event:440 New request: http_put,876186,[<<"xmlns">>,<<"http://jabber.org/protocol/httpbind">>,<<"rid">>,<<"876186">>,<<"sid">>,<<"a1e29cded4325f591bdc5b3646a8f3c78553cdd8">>,<<"key">>,<<"9cffab80935471f419ce5c9201475df5935108d5">>],[xmlel,<<"iq">>,[<<"xmlns">>,<<"jabber:client">>,<<"to">>,<<"localhost">>,<<"id">>,<<"4293567110">>,<<"type">>,<<"result">>],[xmlel,<<"ping">>,[<<"xmlns">>,<<"urn:xmpp:ping">>],[]]],269,1,<<>>,0,0,0,0,0,65535,32512,1,58484
2015-01-09 18:25:31.234 [debug] <0.4052.0>@ejabberd_http_bind:handle_http_put_event:575 New request: http_put,876186,[<<"xmlns">>,<<"http://jabber.org/protocol/httpbind">>,<<"rid">>,<<"876186">>,<<"sid">>,<<"a1e29cded4325f591bdc5b3646a8f3c78553cdd8">>,<<"key">>,<<"9cffab80935471f419ce5c9201475df5935108d5">>],[xmlel,<<"iq">>,[<<"xmlns">>,<<"jabber:client">>,<<"to">>,<<"localhost">>,<<"id">>,<<"4293567110">>,<<"type">>,<<"result">>],[xmlel,<<"ping">>,[<<"xmlns">>,<<"urn:xmpp:ping">>],[]]],269,1,<<>>,0,0,0,0,0,65535,32512,1,58484
2015-01-09 18:25:31.234 [debug] <0.4052.0>@ejabberd_http_bind:rid_allow:866 Previous rid / New rid: 876185/876186
2015-01-09 18:25:31.234 [debug] <0.4052.0>@ejabberd_http_bind:process_http_put:608 Actually processing request: http_put,876186,[<<"xmlns">>,<<"http://jabber.org/protocol/httpbind">>,<<"rid">>,<<"876186">>,<<"sid">>,<<"a1e29cded4325f591bdc5b3646a8f3c78553cdd8">>,<<"key">>,<<"9cffab80935471f419ce5c9201475df5935108d5">>],[xmlel,<<"iq">>,[<<"xmlns">>,<<"jabber:client">>,<<"to">>,<<"localhost">>,<<"id">>,<<"4293567110">>,<<"type">>,<<"result">>],[xmlel,<<"ping">>,[<<"xmlns">>,<<"urn:xmpp:ping">>],[]]],269,1,<<>>,0,0,0,0,0,65535,32512,1,58484
2015-01-09 18:25:31.234 [debug] <0.4052.0>@ejabberd_http_bind:process_http_put:619 Key/OldKey/NextKey: 9cffab80935471f419ce5c9201475df5935108d5/38516e6b293e317ee957f6ef74fa23c68a003d19/38516e6b293e317ee957f6ef74fa23c68a003d19
2015-01-09 18:25:31.234 [debug] <0.4052.0>@ejabberd_http_bind:process_http_put:659  -- SaveKey: 9cffab80935471f419ce5c9201475df5935108d5
2015-01-09 18:25:31.234 [debug] <0.4052.0>@ejabberd_http_bind:process_http_put:671 reqlist: [hbr,876186,<<"38516e6b293e317ee957f6ef74fa23c68a003d19">>,[],hbr,876185,<<"38516e6b293e317ee957f6ef74fa23c68a003d19">>,[xmlstreamelement,xmlel,<<"iq">>,[<<"from">>,<<"localhost">>,<<"to">>,<<"agent1@localhost/cb_operator_1420818758533">>,<<"id">>,<<"4293567110">>,<<"type">>,<<"get">>],[xmlel,<<"ping">>,[<<"xmlns">>,<<"urn:xmpp:ping">>],[]]]]
2015-01-09 18:25:31.235 [debug] <0.4052.0>@ejabberd_http_bind:process_http_put:717 really sending now: [xmlel,<<"iq">>,[<<"xmlns">>,<<"jabber:client">>,<<"to">>,<<"localhost">>,<<"id">>,<<"4293567110">>,<<"type">>,<<"result">>],[xmlel,<<"ping">>,[<<"xmlns">>,<<"urn:xmpp:ping">>],[]]]
2015-01-09 18:25:31.235 [debug] <0.4053.0>@ejabberd_router:do_route:322 route
    from jid,<<"agent1">>,<<"localhost">>,<<"cb_operator_1420818758533">>,<<"agent1">>,<<"localhost">>,<<"cb_operator_1420818758533">>
    to jid,<<>>,<<"localhost">>,<<>>,<<>>,<<"localhost">>,<<>>
    packet xmlel,<<"iq">>,[<<"to">>,<<"localhost">>,<<"id">>,<<"4293567110">>,<<"type">>,<<"result">>],[xmlel,<<"ping">>,[<<"xmlns">>,<<"urn:xmpp:ping">>],[]]
2015-01-09 18:25:31.235 [debug] <0.4053.0>@ejabberd_local:do_route:296 local route
    from jid,<<"agent1">>,<<"localhost">>,<<"cb_operator_1420818758533">>,<<"agent1">>,<<"localhost">>,<<"cb_operator_1420818758533">>
    to jid,<<>>,<<"localhost">>,<<>>,<<>>,<<"localhost">>,<<>>
    packet xmlel,<<"iq">>,[<<"to">>,<<"loca"...>>,<<"id">>,<<...>>,<<...>>,...],[xmlel,<<...>>,...]
2015-01-09 18:25:31.570 [info] <0.5318.0>@ejabberd_c2s:terminate:1757 (socket_state,ejabberd_http_bind,http_bind,<0.5317.0>,0,0,0,0,0,65535,32512,1,58451,ejabberd_http_bind) Close session for anonymous.c6502a950667fc79c3e1534559cc02e0@localhost/2b8e1ac2921d6d3713396edff70a0d2a
2015-01-09 18:25:31.571 [debug] <0.5318.0>@mod_pubsub:node_action:5143 node_action <<"pubsub.localhost">> <<"flat">> get_entity_affiliations [<<"pubsub.localhost">>,<<"anonymous.c6502a950667fc79c3e1534559cc02e0">>,<<"localhost">>,<<"2b8e1ac2921d6d3713396edff70a0d2a">>]
2015-01-09 18:25:31.571 [debug] <0.5318.0>@mod_pubsub:node_call:5124 node_call <<"flat">> get_entity_affiliations [<<"pubsub.localhost">>,<<"anonymous.c6502a950667fc79c3e1534559cc02e0">>,<<"localhost">>,<<"2b8e1ac2921d6d3713396edff70a0d2a">>]
2015-01-09 18:25:31.571 [debug] <0.5318.0>@mod_pubsub:node_action:5143 node_action <<"pubsub.localhost">> <<"hometree">> get_entity_affiliations [<<"pubsub.localhost">>,<<"anonymous.c6502a950667fc79c3e1534559cc02e0">>,<<"localhost">>,<<"2b8e1ac2921d6d3713396edff70a0d2a">>]
2015-01-09 18:25:31.572 [debug] <0.5318.0>@mod_pubsub:node_call:5124 node_call <<"hometree">> get_entity_affiliations [<<"pubsub.localhost">>,<<"anonymous.c6502a950667fc79c3e1534559cc02e0">>,<<"localhost">>,<<"2b8e1ac2921d6d3713396edff70a0d2a">>]
2015-01-09 18:25:31.572 [debug] <0.5318.0>@mod_pubsub:node_action:5143 node_action <<"pubsub.localhost">> <<"pep">> get_entity_affiliations [<<"pubsub.localhost">>,<<"anonymous.c6502a950667fc79c3e1534559cc02e0">>,<<"localhost">>,<<"2b8e1ac2921d6d3713396edff70a0d2a">>]
2015-01-09 18:25:31.572 [debug] <0.5318.0>@mod_pubsub:node_call:5124 node_call <<"pep">> get_entity_affiliations [<<"pubsub.localhost">>,<<"anonymous.c6502a950667fc79c3e1534559cc02e0">>,<<"localhost">>,<<"2b8e1ac2921d6d3713396edff70a0d2a">>]
2015-01-09 18:25:31.573 [debug] <0.5318.0>@mod_carboncopy:disable:246 disabling for <<"anonymous.c6502a950667fc79c3e1534559cc02e0">>
2015-01-09 18:25:31.574 [debug] <0.5318.0>@mod_shared_roster:unset_presence:1081 unset_presence for <<"anonymous.c6502a950667fc79c3e1534559cc02e0">> @ <<"localhost">> / <<"2b8e1ac2921d6d3713396edff70a0d2a">> -> <<>> (0 resources)
2015-01-09 18:25:31.574 [debug] <0.5318.0>@ejabberd_router:do_route:322 route

更多日志在这里。 https://gist.github.com/Elexy/052a6a428fb57147bf4e

【问题讨论】：

【参考方案1】：

我解决了我自己的问题。

我已将 mod_ping 设置为 KILL 会话，我相信 BOSH 连接管理器和 mod_ping 都在终止会话。我现在将 mod_ping 更改为 'timeout_action' 到 'none' 并让 BOSH 连接管理器处理断开连接检测。

必须使用 BOSH 客户端通常从初始 bosh 响应接收的参数“预加载”继承连接。在我的例子中，依靠遗留代码，当 BOSH 连接管理器响应 2 时，“轮询”参数设置为 5。

JsJac 在 2 秒的“请求”时间段内响应了多达 5 个新请求。

所以我的逻辑是这样的：mod_ping 将每 15 秒发送一次 ping，BOSH 连接管理器将检查 ping 或任何其他节是否在 4 秒内得到响应。

这是来自 Ejabberd BOSH 连接管理器的初始响应：

<body xmlns="http://jabber.org/protocol/httpbind" xmlns:xmpp="urn:xmpp:xbosh" xmlns:stream="http://etherx.jabber.org/streams" sid="42e11a86ecba387ef5f53f5b86d38a8c7dc9ef5a" wait="300" requests="2" inactivity="480" maxpause="120" polling="2" ver="1.8" from="localhost" secure="true" authid="3627063868" xmpp:version="1.0"><stream:features xmlns:stream="http://etherx.jabber.org/streams"><bind xmlns="urn:ietf:params:xml:ns:xmpp-bind"/><session xmlns="urn:ietf:params:xml:ns:xmpp-session"/><sm xmlns="urn:xmpp:sm:2"/><sm xmlns="urn:xmpp:sm:3"/><c xmlns="http://jabber.org/protocol/caps" hash="sha-1" node="http://www.process-one.net/en/ejabberd/" ver="/nWL9StXSXhEsL2wg0+s4xo/UdA="/><register xmlns="http://jabber.org/features/iq-register"/></stream:features></body>

还有我现在工作的 JS 代码：

   args.polling = 2;
   args.inactivity = 4;
   args.requests = 2;
   args.wait = 300;

   self.connection.inherit(args);

附言在阅读http://xmpp.org/extensions/xep-0124.html 后，我将不活动设置为 4 秒，以便更快地检测到断开连接。

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