生成freeswitch事件的几种方式
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本文描述了生成freeswitch事件的几种方式,这里记录下,也方便我以后查阅。
- 操作系统:debian8.5_x64
- freeswitch 版本 : 1.6.8
在freeswitch代码中加入事件
产生内置事件(以SWITCH_EVENT_MODULE_LOAD为例):
switch_event_t *event; if (switch_event_create(&event, SWITCH_EVENT_MODULE_LOAD) == SWITCH_STATUS_SUCCESS) { switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "type", "endpoint"); switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "name", ptr->interface_name); switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "key", new_module->key); switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "filename", new_module->filename); switch_event_fire(&event); }
产生自定义事件:
if (switch_event_create_subclass(&event,SWITCH_EVENT_CUSTOM,"calltest1::calltest1_sub") == SWITCH_STATUS_SUCCESS) { switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "callee_uuid", "86896a7a-3dc3-4175-aaa1-cdcbfd9bd566"); switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "caller_num", "1000"); switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "callee_num", "1001"); switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "failed_reason", "exten not avaliable"); switch_event_fire(&event); }
使用嵌入式脚本生成freeswitch事件
使用lua生成freeswitch事件
/tmp/1.lua内容如下:
function fire_failed_event(callee_uuid,caller_num,callee_num,failed_reason) local event = freeswitch.Event("CUSTOM","calltest1::calltest1_sub") event:addHeader("callee_uuid",callee_uuid) event:addHeader("caller_num",caller_num) event:addHeader("callee_num",callee_num) event:addHeader("failed_reason",failed_reason) event:fire() end fire_failed_event("86896a7a-3dc3-4175-aaa1-cdcbfd9bd566","1000","1001","exten not avaliable")
fscli中运行:
/event json CUSTOM calltest1::calltest1_sub luarun /tmp/1.lua
事件内容如下:
{ "Event-Subclass": "calltest1::calltest1_sub", "Event-Name": "CUSTOM", "Core-UUID": "ae0f2919-f45f-450c-8d8f-4c9c555032b6", "FreeSWITCH-Hostname": "localhost", "FreeSWITCH-Switchname": "localhost", "FreeSWITCH-IPv4": "192.168.1.101", "FreeSWITCH-IPv6": "::1", "Event-Date-Local": "2016-09-23 16:54:41", "Event-Date-GMT": "Fri, 23 Sep 2016 08:54:41 GMT", "Event-Date-Timestamp": "1474620881330278", "Event-Calling-File": "switch_cpp.cpp", "Event-Calling-Function": "Event", "Event-Calling-Line-Number": "262", "Event-Sequence": "347438", "callee_uuid": "86896a7a-3dc3-4175-aaa1-cdcbfd9bd566", "caller_num": "1000", "callee_num": "1001", "failed_reason": "exten not avaliable" }
使用python生成freeswitch事件
脚本/usr/local/freeswitch/scripts/test11.py 内容如下:
import freeswitch import uuid def fsapi(session,stream,env,args): event = freeswitch.Event("CUSTOM","calltest1::calltest1_sub") event.addHeader("callee_uuid",str(uuid.uuid4())) event.addHeader("caller_num","1000") event.addHeader("callee_num","1001") event.addHeader("failed_reason","pytest reason") event.fire() freeswitch.consoleLog("info","fire ")
运行效果参考lua实现的demo
通过ESL发送事件
也可以通过freeswitch的ESL接口的sendEvent函数进行发送事件
ESL库方式
freeswitch提供的有ESL开发库,这里以python为例展示下通过ESL实现事件的发送:
import ESL pbxHost,pbxPort = ‘192.168.1.101‘,‘8021‘ pbxAuth = ‘Cluecon‘ con = ESL.ESLconnection(pbxHost,pbxPort,pbxAuth) e = ESL.ESLevent("CUSTOM","calltest1::calltest1_sub") e.addHeader("callee_uuid","42e36a32-d6c9-4fac-841d-95bbab9ce2f5") e.addHeader("caller_num","1000") e.addHeader("callee_num","1001") e.addHeader("failed_reason","pytest reason") con.sendEvent(e)
运行效果参考lua实现的demo
使用socket方式
如果在某些场合不适合使用ESL(比如windows下想使用ESL), 或者发现ESL有bug(之前发现python版的ESL有内存泄漏), 可以直接使用socket直接发送,示例如下:
import socket pbxHost,pbxPort = ‘192.168.1.101‘,8021 pbxAuth = ‘ClueCon‘ sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((pbxHost,pbxPort)) sock.send(‘auth %s\r\n\r\n‘ % pbxAuth) tmsg = "sendevent CUSTOM\r\n" tmsg += "Event-Name: CUSTOM\r\n" tmsg += "Event-Subclass: calltest1::calltest1_sub\r\n" tmsg += "callee_uuid: 42e36a32-d6c9-4fac-841d-95bbab9ce2f5\r\n" tmsg += "caller_num: 1000\r\n" tmsg += "callee_num: 1001\r\n" tmsg += "failed_reason: pytest reason\r\n" sock.send(‘%s\r\n‘ % tmsg)
运行效果参考lua实现的demo
本文github地址:
https://github.com/mike-zhang/mikeBlogEssays/blob/master/2016/20160927_生成freeswitch事件的几种方式.md
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