FreeSWITCH 使用 lua 脚本接管分机注册,鉴权等

Posted 2020-12-23 lzpong

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1. 更改lua.conf.xml配置

<configuration name="lua.conf" description="LUA Configuration">
  <settings>

    <!--
    Specify local directories that will be searched for LUA modules
    These entries will be pre-pended to the LUA_CPATH environment variable
    -->
    <!-- <param name="module-directory" value="/usr/lib/lua/5.1/?.so"/> -->
    <!-- <param name="module-directory" value="/usr/local/lib/lua/5.1/?.so"/> -->

    <!--
    Specify local directories that will be searched for LUA scripts
    These entries will be pre-pended to the LUA_PATH environment variable
    -->
    <!-- <param name="script-directory" value="/usr/local/lua/?.lua"/> -->
    <!-- <param name="script-directory" value="$${script_dir}/?.lua"/> -->
    <param name="script-directory" value="$${script_dir}/"/>
    <param name="script-directory" value="$${script_dir}/?.lua"/>
<!-- 接管分机注册 -->
    <param name="xml-handler-script" value="user_auth_xml.lua" />
    <param name="xml-handler-bindings" value="directory" />

    <!--<param name="xml-handler-bindings" value="dialplan"/>-->
    <!--
    The following options identifies a lua script that is launched
    at startup and may live forever in the background.
    You can define multiple lines, one for each script you
    need to run.
    -->
    <!--<param name="startup-script" value="startup_script_1.lua"/>-->
    <!--<param name="startup-script" value="startup_script_2.lua"/>-->

    <!--<hook event="CUSTOM" subclass="conference::maintenance" script="catch-event.lua"/>-->
  </settings>
</configuration>

其中

<param name="xml-handler-script" value="user_auth_xml.lua" />
<param name="xml-handler-bindings" value="directory" />

指定使用 user_auth_xml.lua 优先获取分机配置.

包括分机注册,拨打鉴权验证等获取分分机配置信息.

2. user_auth_xml.lua 脚本

 1 -- user_auth_xml.lua
 2 -- example script for generating user directory XML
 3 -- comment the following line for production:
 4 --freeswitch.consoleLog("notice", "Debug from user_auth_xml.lua, provided params:
" .. params:serialize() .. "
")
 5 require ("config")
 6 
 7 local req_domain = params:getHeader("domain")
 8 local req_key    = params:getHeader("key")
 9 local req_user   = params:getHeader("user")
10 local req_password   = nil -- params:getHeader("pass")
11 freeswitch.consoleLog("NOTICE","lua take the key="..req_key..", user="..req_user..", domain="..req_domain.."
");
12 
13 --[[
14 local dbh = freeswitch.Dbh("freeswitch","dbuser","dbpswd");
15 local my_query = string.format("select password from userinfo where username=‘%s‘ limit 1", req_user)
16 --freeswitch.consoleLog("NOTICE","start connect DB...
");
17 assert(dbh:connected());
18 freeswitch.consoleLog("notice", "the query string is:"..my_query)
19 dbh:query(my_query,function(row)
20   --freeswitch.consoleLog("NOTICE",string.format("%s
",row.password))
21   req_password=string.format("%s",row.password)
22 end);
23 dbh:release();
24 freeswitch.consoleLog("NOTICE","info:"..req_domain.."--"..req_key.."--"..req_user.."--"..req_password.."
");
25 ]]--
26 for line in io.lines("scripts/users.txt") do
27   --print(line)
28   if line~=nil then
29     local arr=Split(line,‘ ‘)
30     --print( arr[1].." "..arr[2])
31     if arr[1] == req_user and arr[2]~=nil then
32       req_password=arr[2]
33       break
34     end
35   end
36 end
37 --assert (req_domain and req_key and req_user,
38 --"This example script only supports generating directory xml for a single user !
")
39 if req_domain ~= nil and req_key=="id" and req_user~=nil and req_password~=nil  then
40     XML_STRING =
41     [[<?xml version="1.0" encoding="UTF-8" standalone="no"?>
42     <document type="freeswitch/xml">
43       <section name="directory">
44         <domain name="]]..req_domain..[[">
45           <params>
46             <param name="dial-string" value="{^^:sip_invite_domain=${dialed_domain}:presence_id=${dialed_user}@${dialed_domain}}${sofia_contact(*/${dialed_user}@${dialed_domain})},${verto_contact(${dialed_user}@${dialed_domain})}"/>
47             <!-- These are required for Verto to function properly -->
48             <param name="jsonrpc-allowed-methods" value="verto"/>
49             <param name="jsonrpc-allowed-event-channels" value="demo,conference,presence"/>
50           </params>
51           <groups>
52             <group name="default">
53               <users>
54                 <user id="]] ..req_user..[[">
55                   <params>
56                     <param name="password" value="]]..req_password..[["/>
57                     <param name="vm-password" value="]]..req_password..[["/>
58                   </params>
59                   <variables>
60                     <variable name="toll_allow" value="domestic,international,local"/>
61                     <variable name="accountcode" value="]] ..req_user..[["/>
62                     <variable name="user_context" value="default"/>
63                     <variable name="directory-visible" value="true"/>
64                     <variable name="directory-exten-visible" value="true"/>
65                     <variable name="limit_max" value="15"/>
66                     <variable name="effective_caller_id_name" value="Extension ]] ..req_user..[["/>
67                     <variable name="effective_caller_id_number" value="]] ..req_user..[["/>
68                     <variable name="callgroup" value="chezai"/>
69                   </variables>
70                 </user>
71               </users>
72             </group>
73           </groups>
74         </domain>
75       </section>
76     </document>]]
77 else
78     XML_STRING = nil
79     --[[<?xml version="1.0" encoding="UTF-8" standalone="no"?>
80     <document type="freeswitch/xml">
81       <section name="directory">
82       </section>
83     </document>]]
84 end
85 
86 -- comment the following line for production:
87 -- freeswitch.consoleLog("notice", "Debug from gen_dir_user_xml.lua, generated XML:
" .. XML_STRING .. "
");