基于freeswitch1.6的IVR智能语音机器人交互逻辑lua脚本

package.path = "/usr/local/share/lua/5.2/?.lua"
package.cpath = "/usr/local/lib/lua/5.2/?.so;"
local socket = require "socket"
local http = require "socket.http"
http.TIMEOUT = 10
local ltn12 = require("ltn12")

--智能客服机器人的hashcode
local robothashcode = ""
--能力平台appkey
local appKey = "ac5d5453"
--机器人问答渠道id
local channelId = "1";
local receiverId = 8185
--broker问答地址
local brokerAddress = "http://10.248.17.3:8080/CSRBroker"
--主叫号码
local call_num_link = session:getVariable("caller_id_number")
--被叫号码
local talkerId = session:getVariable("destination_number")

local uuid = argv[1]

math.randomseed(os.time())
--通话的唯一标识
local callUserId = math.random() * 100000000000000
--TTS名称
local ttsName = "ZhuRuiv9"

--用户信息接口
local getCustomerInfo = "http://10.248.17.3:8083/api/customer/basic/getCustomerInfo"

--结果回传接口
local updateUserInfoUrl = "http://10.248.17.3:8083/api/customer/basic/updateResult"


--呼叫开始时间
local startTime = ""
local endTime = ""
--local record_file = session:getVariable("record_file")

--录音文件保存地址
local subdir = os.date("%Y-%m-%d", os.time())
local datestr = session:getVariable("datestr")
local record_file = "/home/data/recordings/archive/renrendai/" .. subdir .. "/" .. call_num_link .. "_" .. datestr .. ".wav"
function printLog(text)
    if (text) then
        freeswitch.consoleLog("warning", text .. "\n")
    else
        freeswitch.consoleLog("warning", "object is nil")
    end
end

--字符串分隔方法
function string_split(str, split_char)
    local sub_str_tab = {};
    while (true) do
        local pos = string.find(str, split_char);
        if (not pos) then
            sub_str_tab[#sub_str_tab + 1] = str;
            break;
        end
        local sub_str = string.sub(str, 1, pos - 1);
        sub_str_tab[#sub_str_tab + 1] = sub_str;
        str = string.sub(str, pos + 1, #str);
    end

    return sub_str_tab;
end



--分隔主叫号码传递参数
local str_Arr = string_split(call_num_link, "*")
--主叫号码
--local call_num = "15034032390"
local call_num = str_Arr[1]
--业务类型
--local transparam = "7"
local transparam = str_Arr[2]
--local userId = str_Arr[3]
local userId = "20"


--[[
--主叫号码
local call_num = "15034032390"
--业务类型
local transparam = 7
local userId = "20"

--分隔主叫号码传递参数
local str_Arr = string_split(call_num_link, "*")
if(#str_Arr == 3) then
    call_num = str_Arr[1]
    transparam = str_Arr[2]
	userId = str_Arr[3]
end
--]]

	  

freeswitch.consoleLog("warning", "*******************LOG*****************" .. uuid)
freeswitch.consoleLog("warning", "*****************call_num_link:*****************[" .. call_num_link .. "]")
freeswitch.consoleLog("warning", "*****************talkerId:*****************[" .. talkerId .. "]")

callUserId = "renrendai_" .. call_num .. "_" .. math.floor(callUserId)

function parseargs_xml(s)
    local arg = {}
    string.gsub(s, "(%w+)=([\"'])(.-)%2", function(w, _, a)
        arg[w] = a
    end)
    return arg
end

function parse_xml(s)
    local stack = {};
    local top = {};
    table.insert(stack, top);
    local ni, c, label, xarg, empty;
    local i, j = 1, 1;
    while true do
        ni, j, c, label, xarg, empty = string.find(s, "<(%/?)(%w+)(.-)(%/?)>", i);
        if not ni then
            break
        end
        local text = string.sub(s, i, ni - 1);
        if not string.find(text, "^%s*$") then
            table.insert(top, text);
        end
        if empty == "/" then
            table.insert(top, { label = label, xarg = parseargs_xml(xarg), empty = 1 });
        elseif c == "" then
            top = { label = label, xarg = parseargs_xml(xarg) };
            table.insert(stack, top);
        else
            local toclose = table.remove(stack);
            top = stack[#stack];
            if #stack < 1 then
                error("nothing to close with " .. label);
            end
            if toclose.label ~= label then
                error("trying to close " .. toclose.label .. " with " .. label);
            end
            table.insert(top, toclose);
        end
        i = j + 1;
    end
    local text = string.sub(s, i);
    if not string.find(text, "^%s*$") then
        table.insert(stack[stack.n], text);
    end
    if #stack > 1 then
        error("unclosed " .. stack[stack.n].label);
    end
    return stack[1];
end

-- Used to parse the XML results.
function getResults(s)
    local xml = parse_xml(s);
    local stack = {}
    local top = {}
    table.insert(stack, top)
    top = { grammar = xml[1].xarg.grammar, score = xml[1].xarg.score, text = xml[1][1][1] }
    table.insert(stack, top)
    return top;
end


local function json2true(str, from, to)
    return true, from + 3
end

local function json2false(str, from, to)
    return false, from + 4
end

local function json2null(str, from, to)
    return nil, from + 3
end

local function json2nan(str, from, to)
    return nul, from + 2
end

local numberchars = {
    ['-'] = true,
    ['+'] = true,
    ['.'] = true,
    ['0'] = true,
    ['1'] = true,
    ['2'] = true,
    ['3'] = true,
    ['4'] = true,
    ['5'] = true,
    ['6'] = true,
    ['7'] = true,