HomeServer/Server/Common/Common.lua

local skynet = require "skynet"
local oo = require "Class"
local log = require "Log"
local crypt = require "skynet.crypt"
local redisKeyUrl = require "RedisKeyUrl"

local Common = oo.class()
local pb = require "pb"
Common.word ="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
Common.wordNoIAndL ="abcdefghjkmnopqrstuvwxyzABCDEFGHJKMNOPQRSTUVWXYZ"
Common.number = "0123456789"
Common.numberExceptZero = "123456789"
Common.web = "192.168.50.215:8080"
Common.redeemUrl = "/web/api/redeemCode/use"
Common.getMailUrl = "/web/api/mail/getMail"
Common.useMailUrl = "/web/api/mail/useMail"
Common.findMailUrl = "/web/api/mail/findMailByMailId"               --新增根据mailId查询对应邮件接口
Common.getAnnouncementUrl = "/web/api/announcement/getAnnouncement"
Common.addAnnouncementUrl = "/web/api/announcement/gameServerAddAnnouncement"
Common.addQuestionnaireUrl = "/web/api/questionnaire/add"

--Common.specialChar = "`!@#$%^&*()_+~-=;'?\\/."                              --特殊字符
--夏鸣星\\(≧▽
Common.specialChar = {}
table.insert( Common.specialChar, "`" )
table.insert( Common.specialChar, "!" )
table.insert( Common.specialChar, "@" )
table.insert( Common.specialChar, "#" )
table.insert( Common.specialChar, "$" )
table.insert( Common.specialChar, "%" )
table.insert( Common.specialChar, "^" )
table.insert( Common.specialChar, "&" )
table.insert( Common.specialChar, "*" )
table.insert( Common.specialChar, "(" )
table.insert( Common.specialChar, ")" )
table.insert( Common.specialChar, "_" )
table.insert( Common.specialChar, "+" )
table.insert( Common.specialChar, "~" )
table.insert( Common.specialChar, "-" )
table.insert( Common.specialChar, "=" )
table.insert( Common.specialChar, ";" )
table.insert( Common.specialChar, "'" )
table.insert( Common.specialChar, "\\" )
table.insert( Common.specialChar, "/" )
table.insert( Common.specialChar, "." )
table.insert( Common.specialChar, "'" )

--打印表
function Common:TableToString(t)
    local sp = " ";
    local list = {};
    local function addline(str)
        table.insert(list, str);
    end
    local function do_tostring(tt, l, ln)
        local tp = type(tt);
        if (tp == "table") then
            l = l + 1;
            if (l - 1 == 0) then
                addline("{");
            end
            for k, v in pairs(tt) do
                local pp = type(v);
                if (pp == "table") then
                    addline(string.format("%"..l.."s[%s]={",sp,k));
                    do_tostring(v, l + 1);
                    addline(string.format("%"..l.."s},",sp));
				else
                    addline(string.format("%"..l.."s[%s]=%s,",sp,k,tostring(v)));
                end
            end
            if (l - 1 == 0) then
                addline("}");
            end
        else
            addline(string.format("%"..l.."s=%s,",sp,k,tostring(tt)));
        end
    end
    do_tostring(t, 0);
    return table.concat(list, "\n");
end
 
function Common:Split(input, delimiter)
    input = tostring(input)
    delimiter = tostring(delimiter)
    if (delimiter=='') then 
        return false 
    end
    local pos,arr = 0, {}
    for st,sp in function() return string.find(input, delimiter, pos, true) end do
        table.insert(arr, string.sub(input, pos, st - 1))
        pos = sp + 1
    end
    table.insert(arr, string.sub(input, pos))
    return arr
end

--是否为同一天
function Common:IsSameDay(time1 , time2)
	if os.date("*t", time1).year == os.date("*t", time2).year  and 
	   os.date("*t", time1).month == os.date("*t", time2).month  and 
	   os.date("*t", time1).day == os.date("*t", time2).day  then
	   return true
	end
	return false
end

--是否为连续的一天
function Common:IsSeriesDay(time1 , time2)
    local t1 = os.date("*t",time1)
    local t2 = os.date("*t",time2)
	if t1.yday == t2.yday + 1 then
	   return true
    elseif t2.yday == t1.yday + 1 then
        return true
	end
	return false
end

--随机数字ID
function Common:RandNumberID( maxCount )
    local rand = 0
    local name = ""
    for i = 1, maxCount do
        local temp = nil
        if 1 == i then
            rand = math.random(1,#self.numberExceptZero)
            temp = string.sub(self.numberExceptZero,rand,rand)
            name = name .. temp
        else
            rand = math.random(1,#self.number)
            temp = string.sub(self.number,rand,rand)
            name = name .. temp
        end
    end
    return name
end

--随机ID
function Common:RandID( maxCount )
    local rand = 0
    local name = ""
    for i = 1, maxCount do
        rand = math.random(1,52)
        local temp = string.sub(self.word,rand,rand)
        name = name .. temp
    end
    return name
end

--随机ID没有I和L
function Common:RandIDNoIAndL( maxCount )
    local rand = 0
    local name = ""
    for i = 1, maxCount do
        rand = math.random(1,48)
        local temp = string.sub(self.wordNoIAndL,rand,rand)
        name = name .. temp
    end
    return name
end

--随机name
function Common:RandName()
    local rand = 0
    local name = ""
    for i = 1, 10 do
        rand = math.random(1,52)
        local temp = string.sub(self.word,rand,rand)
        name = name .. temp
    end
    return name
end

--随机token
function Common:RandToken()
    local rand = 0
    local token = ""
    for i = 1, 8 do
        rand = math.random(1,52)
        local temp = string.sub(self.word,rand,rand)
        token = token .. temp
    end
    --token = "1234567890"
    return token
end

--随机兑换码
function Common:RandRedeemCode()
    local rand = 0
    local name = ""
    for i = 1, 20 do
        rand = math.random(1,52)
        local temp = string.sub(self.word,rand,rand)
        name = name .. temp
    end
    return name
end

--获取主服ID
function Common:GetMainServerID(serverId)
    local mainServerId = nil
    mainServerId = string.sub(serverId,1,1)
    if 0 == #mainServerId then
        mainServerId = nil
    end
    return mainServerId
end

--获取主服ID
function Common:GetClusterConfig(serverId)
    serverId = tonumber(serverId)
    for k, v in pairs(skynet.server.gameConfig.ClusterServerConfig) do
        if serverId == v.serverId then
            return v
        end
    end
    return nil
end

function Common:Utf8FormString(t)
    local bytearr = {}
    for _, v in ipairs(t) do
      local utf8byte = v < 0 and (0xff + v + 1) or v
      table.insert(bytearr, string.char(utf8byte))
    end
    return table.concat(bytearr)
end

--解析参数
function Common:ParseUrlParam( url )
    local newUrl = nil
    local param = nil
    local post = string.find(url,"?")
    newUrl = string.sub(url,1, post -1)
    param = string.sub(url,post + 1, #url)
    return newUrl,param
end

--是否为URL编码
function Common:IsUrlEncode(s)
    if string.find(s, "%%") then
        return true
    else
        return false
    end
end

--URL编码
function Common:UrlEncode(s)     
    s = string.gsub(s, "([^%w%.%- ])", function(c) 
    return string.format("%%%02X", string.byte(c)) end)    
    return string.gsub(s, " ", "+")
end 

--URL解码
function Common:UrlDecode(s)    
    s = string.gsub(s, '%%(%x%x)', function(h) 
    return string.char(tonumber(h, 16)) end)    
    return s
end

--获取字符串时间 2022-02-22 22:22:22
function Common:GetStrTime( time )
    return os.date("%Y-%m-%d %H:%M:%S",time)
end

--获取字符串日期 2022-02-22
function Common:GetStrDate( time )
    return os.date("%Y-%m-%d",time)
end

--将字符串时间 2022-02-22 22:22:22 转为时间戳
function Common:GetTime( date )
    local _, _, y, m, d, _hour, _min, _sec = string.find(date, "(%d+)-(%d+)-(%d+)%s*(%d+):(%d+):(%d+)");
    return os.time({year=y, month = m, day = d, hour = _hour, min = _min, sec = _sec});
end

--获取一年几月有多少天
function Common:GetDayCount( year , month )
    local temp ={31,28,31,30,31,30,31,31,30,31,30,31}
    --判断是否是闰年，如果为闰年，改变2月是29，否则改变2月是28
    if (( year%4==0 and year%100 ~= 0 ) or year%400==0 ) then
            temp[2] = 29
        else
            temp[2] = 28
    end
    return temp[ month ];
end

--获取表结构时间
function Common:GetTableTime()
	local now = skynet.GetTime()
	local curr_time = {}
	curr_time.year = tonumber(os.date("%Y", now))
    curr_time.month = tonumber(os.date("%m", now))
    curr_time.day = tonumber(os.date("%d", now))
    curr_time.hour = tonumber(os.date("%H", now))
    curr_time.min = tonumber(os.date("%M", now))
    curr_time.sec = tonumber(os.date("%S", now))
    return curr_time
end

--获取之前的某一天的起始和结束时间戳
function Common:GetPreSomeDay( count )
	local now = skynet.GetTime()
	local curr_time = {}
	curr_time.year = os.date("%Y", now)
    curr_time.month = os.date("%m", now)
    curr_time.day = os.date("%d", now)

	local startTime = os.time({year=curr_time.year, month=curr_time.month, day=curr_time.day - count, hour=0,min=0,sec=0}) 
    local endTime = os.time({year=curr_time.year, month=curr_time.month, day=curr_time.day - count, hour=23,min=59,sec=59}) 
    --startTime = os.date("%Y-%m-%d %H:%M:%S",startTime)
    --endTime = os.date("%Y-%m-%d %H:%M:%S",endTime)
    return startTime,endTime
end

--获取之后的某一天的起始和结束时间戳
function Common:GetAfterSomeDay( count )
	local now = skynet.GetTime()
	local curr_time = {}
	curr_time.year = os.date("%Y", now)
    curr_time.month = os.date("%m", now)
    curr_time.day = os.date("%d", now)

	local startTime = os.time({year=curr_time.year, month=curr_time.month, day=curr_time.day + count, hour=0,min=0,sec=0}) 
    return startTime
end

--获取给定时间的之后某天的起始时间
function Common:GetTimeAfterSomeDay( time , count )
    local curr_time = {}
    curr_time.year = os.date("%Y", time)
    curr_time.month = os.date("%m", time)
    curr_time.day = os.date("%d", time)

    local startTime = os.time({year=curr_time.year, month=curr_time.month, day=curr_time.day + count, hour=0,min=0,sec=0})
    --local startTime = os.date("%Y-%m-%d %H:%M:%S",startTime)
    return startTime
end

--获取给定时间的之后某天的起始时间并且保留精确时间
function Common:GetTimeAfterSomeDayHMS( time , count )
    local curr_time = {}
    curr_time.year = os.date("%Y", time)
    curr_time.month = os.date("%m", time)
    curr_time.day = os.date("%d", time)
    curr_time.hour = os.date("%H", time)
    curr_time.min = os.date("%M", time)
    curr_time.sec = os.date("%S", time)

    local startTime = os.time({year=curr_time.year, month=curr_time.month, day=curr_time.day + count, hour=curr_time.hour,min=curr_time.min,sec=curr_time.sec})
    --local startTime = os.date("%Y-%m-%d %H:%M:%S",startTime)
    return startTime
end

--获取之后的某一天的时间戳
function Common:GetAfterSomeDayTime( count , hour , min , sec )
    hour = hour or 0
    min = min or 0
    sec = sec or 0

	local now = skynet.GetTime()
	local curr_time = {}
	curr_time.year = os.date("%Y", now)
    curr_time.month = os.date("%m", now)
    curr_time.day = os.date("%d", now)

	local startTime = os.time({year=curr_time.year, month=curr_time.month, day=curr_time.day + count, hour= hour ,min= min ,sec= sec}) 
    return startTime
end

--获取之后的某个小时的时间戳
function Common:GetAfterSomeHour( count )
    local now = skynet.GetTime()
    local curr_time = {}
    curr_time.year = os.date("%Y", now)
    curr_time.month = os.date("%m", now)
    curr_time.day = os.date("%d", now)
    curr_time.hour = os.date("%H", now)
    curr_time.min = os.date("%M", now)
    curr_time.sec = os.date("%S", now)
    --向下取整 获取应该增加的天数
    local day = math.floor(count/24)
    --获取应该增加的小时
    local hour = count - 24*day
    local time = os.time({year=curr_time.year, month=curr_time.month, day=curr_time.day + day, hour=curr_time.hour+hour ,min=curr_time.min ,sec=curr_time.sec})
    --local startTime = os.date("%Y-%m-%d %H:%M:%S",startTime)
    return time
end

--获取年月天
function Common:GetYearMonthDay()
	local now = skynet.GetTime()
	local curTime = {}
	curTime.year = os.date("%Y", now)
    curTime.month = os.date("%m", now)
    curTime.day = os.date("%d", now)
    return tonumber( curTime.year ) , tonumber( curTime.month ) , tonumber( curTime.day )
end

--获取某一天的前后多少天 count可以为正负
function Common:GetSomeDayTime( modifyTime , count )
    local curTime = {}
    curTime.year = os.date("%Y", modifyTime)
    curTime.month = os.date("%m", modifyTime)
    curTime.day = os.date("%d", modifyTime)
    curTime.hour = os.date("%H", modifyTime)
    curTime.min = os.date("%M", modifyTime)
    curTime.sec = os.date("%S", modifyTime)
    local newTime = os.time({year=curTime.year, month=curTime.month, day=curTime.day + count, hour=curTime.hour,min=curTime.min ,sec=curTime.sec})
    return newTime
end

--首字母小写
function Common:FirstAlphabetToLower(str)
    return (str:gsub("^%u",string.lower))
end

--随机不重复的数据
function Common:RandNoRepeatItem( needCount , allItem )
    if not allItem then
        return {}
    end
    
    local maxCircCount = 0          --最大循环数据
    local data = {}
    local cfgCount = #allItem
    if 0 == cfgCount then
        return {}
    end
    while true do
        local index = math.random(1,cfgCount)
        local id = allItem[ index ]
        local isExist = false
        --检查商品列表是否有重复
        for k, v in pairs( data ) do
            if v == id then
                isExist = true
                break
            end
        end

        if not isExist then
            --不存在就插入数据
            table.insert( data , id )
            --超过就退出
            if #data >= needCount then
                break
            end
        end

        maxCircCount = maxCircCount + 1
        if maxCircCount >= 2000 then
            --防止死循环，计算2000次就强制退出
            break
        end
    end

    return data
end

--随机不重复的配置
function Common:RandNoRepeatItemForCfg( needCount , cfg )
    if not cfg then
        return nil
    end
    
    local maxCircCount = 0          --最大循环数据
    local data = {}
    local cfgCount = #cfg
    while true do
        local index = math.random(1,cfgCount)
        local id = cfg[ index ].id
        local isExist = false
        --检查商品列表是否有重复
        for k, v in pairs( data ) do
            if v == id then
                isExist = true
                break
            end
        end

        if not isExist then
            --不存在就插入数据
            table.insert( data , id )
            --最大6个商品，超过就退出
            if #data >= needCount then
                break
            end
        end

        maxCircCount = maxCircCount + 1
        if maxCircCount >= 5000 then
            --防止死循环，计算5000次就强制退出
            break
        end
    end

    return data
end

--获取两点的距离
function Common:Distance(x1,y1,x2,y2)
    x1,y1,x2,y2 = string.format("%.2f", x1),string.format("%.2f", y1),string.format("%.2f", x2),string.format("%.2f", y2)    --由于精度问题，客户端可能发来0.12345645646e+14的数据，所以这里保留2位就行。
    return math.sqrt((y2-y1) * (y2-y1)+(x2-x1) * (x2-x1))
end

--转换到染色家具ID
function Common:TransferColorFurniture( id )
    local curFurniture = skynet.server.gameConfig.Furniture[ id ]
    if not curFurniture then
        log.info("获取家具配置错误 ID ",id)
    else
        if 2 == #curFurniture.dyeFurTrans and 0 == math.floor( curFurniture.id /1000000 ) then
            return curFurniture.dyeFurTrans[2] * 100000 + curFurniture.dyeFurTrans[1];
        else
            return id
        end
    end

end

--获取星期几
function Common:GetDayInWeek()
    local t = os.date("*t", skynet.GetTime())
    if 1 == t.wday then
        return 7
    else
        t.wday = t.wday - 1
        return t.wday
    end
end

--获取给定时间是星期几
function Common:GetDayInWeekByTime(y,m,d)
    if m == 1 or m == 2 then
        m = m + 12
        y = y - 1
    end
    local m1,_ = math.modf(3 * (m + 1) / 5)
    local m2,_ = math.modf(y / 4)
    local m3,_ = math.modf(y / 100)
    local m4,_ = math.modf(y / 400)

    local iWeek = (d + 2 * m + m1 + y + m2 - m3  + m4 ) % 7
    local weekTab = {
        ["0"] = 1,
        ["1"] = 2,
        ["2"] = 3,
        ["3"] = 4,
        ["4"] = 5,
        ["5"] = 6,
        ["6"] = 7,
    }
    return weekTab[tostring(iWeek)]
end

--是否为润年
function Common:IsLeapYear(year)
    if year % 4 == 0 then
        if year % 100 ~= 0 or year % 400 == 0 then
            return true -- 能被4整除并且不能同时被100或者400整除则为闰年
        else
            return false
        end
    else
        return false
    end
end

--是否为新的一周
function Common:IsNewWeek(time1)
    local t1 = os.date("*t",time1)		    --小时间
    local t2 = os.date("*t",skynet.GetTime())		--当前时间
    local year1 = t1.year
    local day1 = t1.yday
    local wday1 = (t1.wday-1 == 0) and 7 or t1.wday-1
    local year2 = t2.year
    local day2 = t2.yday
    local wday2 = (t2.wday-1 == 0) and 7 or t2.wday-1
    --判断是不是同一年
    if(year1 == year2) then
        --如果t1的星期几大于t2的星期几 则肯定是新的一周
        if(wday1 > wday2) then
            return true
        else
            --如果两个时间的天数差大于7 则肯定是新的一周
            if(day2 - day1 >= 7) then
                return true
            end
        end
    else
        --如果t1的星期几大于t2的星期几 则肯定是新的一周
        if(wday1 >= wday2) then
            return true
        else
            --如果 小的时间到当年结束的天数 加上 大的时间到当年开始的天数 大于等于7 则肯定是新的一周
            local count = 365
            if ((year1%4 == 0 and year1%100 ~= 0) or year1%400 == 0) then
                count = 366
            end
            if((count - day1 + day2) >= 7 )then
                return true
            end
        end
    end
    return false
end

--是否间隔一周
function Common:IsIntervalWeek( time1 )
    local t1 = os.date("*t",time1)
    local t2 = os.date("*t",skynet.GetTime())
	if t1.yday + 7== t2.yday then
	   return true
	end
	return false
end

--奖励类型 str 转为 int
function Common:AwardTypeStrToInt( type )
    local goodsType = nil
    if "NumericalValue" == type then
        goodsType = 0
    elseif "Furniture" == type then
        goodsType = pb.enum("EnumGoodsType" , "Furniture")
    elseif "Decorate" == type or "Decoration" == type then
        goodsType = pb.enum("EnumGoodsType" , "Decorate")
    elseif "Flowerpot" == type then
        goodsType = pb.enum("EnumGoodsType" , "Flowerpot")
    elseif "Seed" == type then
        goodsType = pb.enum("EnumGoodsType" , "Seed")
    elseif "Plant" == type then
        goodsType = pb.enum("EnumGoodsType" , "Plant")
    elseif "Clothes" == type then
        goodsType = pb.enum("EnumGoodsType" , "Clothes")
    elseif "PetClothes" == type then
        goodsType = pb.enum("EnumGoodsType" , "PetClothes")
    elseif "Fertilizer" == type then
        goodsType = pb.enum("EnumGoodsType" , "Fertilizer")
    elseif "Ticket" == type then
        goodsType = pb.enum("EnumGoodsType" , "Prop")
    elseif "FishType" == type then
        goodsType = pb.enum("EnumGoodsType" , "Fish")
    elseif "CuisineMaterial" == type then
        goodsType = pb.enum("EnumGoodsType" , "CuisineMaterial")
    elseif "CuisineMenu" == type then
        goodsType = pb.enum("EnumGoodsType" , "CuisineMenu")
    elseif "CoffeeType" == type then
        goodsType = pb.enum("EnumGoodsType" , "Coffee")
    elseif "Garden" == type then
        goodsType = pb.enum("EnumGoodsType" , "Garden")
    elseif "Reward" == type then
        goodsType = pb.enum("EnumGoodsType" , "RewardId")
	elseif "Points" == type then
        goodsType = pb.enum("EnumGoodsType" , "Points")
    elseif "Suit" == type then
        goodsType = pb.enum("EnumGoodsType" , "Suit")
    elseif "ClothesSuit" == type then
        goodsType = pb.enum("EnumGoodsType" , "ClothesSuit")
    end
    return goodsType
end

--十六进制转字符串
function Common:HexToStr(hex)
	--判断输入类型
	if (type(hex)~="string") then
		return nil,"hex2str invalid input type"
	end
	--拼接字符串
	local index=1
	local ret=""
	for index=1,hex:len() do
		ret=ret..string.format("%02X",hex:sub(index):byte())
	end
 
	return ret
end

--将字符串按格式转为16进制串
function Common:StrToHex(str)
	--判断输入类型	
	if (type(str)~="string") then
	    return nil,"str2hex invalid input type"
	end
	--滤掉分隔符
	str=str:gsub("[%s%p]",""):upper()
	--检查内容是否合法
	if(str:find("[^0-9A-Fa-f]")~=nil) then
	    return nil,"str2hex invalid input content"
	end
	--检查字符串长度
	if(str:len()%2~=0) then
	    return nil,"str2hex invalid input lenth"
	end
	--拼接字符串
	local index=1
	local ret=""
	for index=1,str:len(),2 do
	    ret=ret..string.char(tonumber(str:sub(index,index+1),16))
	end
	return ret
end

--获取当前进程ID
function Common:GetProcessID( serverId )
    local processIds = {}   --获取到的进程ID
    local fp = io.popen( string.format("ps -ef | grep skynet | grep -v grep | grep config_%d | awk '{print $2}'" , serverId))
    for pId in fp:lines() do
       table.insert( processIds , pId)
    end
    return processIds
end

--是否存在
function Common:IsExist( id , allData )
    for k, v in pairs( allData ) do
        if v == id then
            return true
        end
    end 
    return false
end

--是否存在
function Common:IsExistForID( id , allData )
    for k, v in pairs( allData ) do
        if id == v.id then
            return true
        end
    end 
    return false
end

--存在就加
function Common:AddForID( id , allData )
    for k, v in pairs( allData ) do
        if v.id == id then
            return true
        end
    end 
    return false
end

--复制表
function Common:DeepCopy(tb)
    if tb == nil then
        return nil -- 参见注1
    end
    local copy = {}
    for k, v in pairs(tb) do
        if type(v) == 'table' then
            copy[k] = self:DeepCopy(v)
        else
            copy[k] = v
        end
    end
    -- local meta = table.deepCopy(getmetatable(tb))
    setmetatable(copy, self:DeepCopy(getmetatable(tb)))
    return copy
end

--获取当前时间是给的时间的差距多少天
function Common:GetTimeGap( time )
    local count = 0
    if time then
        local now = os.date("*t", skynet.GetTime())
        local next = os.date("*t", time)

        if now and next then
            local num1 = os.time({ year = now.year, month=now.month, day=now.day })
            local num2 = os.time({ year = next.year, month=next.month, day=next.day })
            if num1 and num2 then
                count =  math.abs(num1 - num2) / (3600*24)
            end
        end
    end
    return count
end

--是否为新的一月
function Common:IsNewMonth( time1 )
    local t1 = os.date("%m",time1)
    local t2 = os.date("%m",skynet.GetTime())
    if t1 ~= t2 then
        return true
    end
    return false
end

--通过数字分割字符串
function Common:SplitByNumber( input )
    local result = {}
    string.gsub(input , '[^'.. 0123456789 ..']+' , function(value)
        table.insert(result , value)
    end)
    return result
end

--DES加密
function Common:DesEncode( key, text )
	local c = crypt.desencode(key, text, crypt.padding[ "pkcs7" ])
	return crypt.base64encode(c)
end

--DES解密
function Common:DesDecode( key, text )
	text = crypt.base64decode(text)
	return crypt.desdecode(key, text, crypt.padding[ "pkcs7" ])
end

--读取二进制文件
function Common:ReadBinaryFileData( filePath ) 
    local file = io.open(filePath, "rb")
    if not file then return nil end
    local content = file:read "*all" -- *all reads the whole file
    file:close()
    return content
end

--写入二进制文件
function Common:WriteBinaryFileData( filePath ,data ) 
    os.execute("touch "..filePath)
    local file = io.open( filePath, "wb") 
    if not file then return nil end
    file:write(data)
    file:close()
end

--是否存在特殊字符
function Common:IsExistSpecialChar( text )
    if string.find(text, "'") or string.find(text, "\\") or string.find(text, "\n") or string.find(text, "\t") or string.find(text, "\r") or
       string.find(text, "\v") or string.find(text, "\b") or string.find(text, "?") or string.find(text, "\0") or string.find(text, "\a") or
       string.find(text, "\f") then
        return true
    else
        return false
    end
    
        --[[
        for k, v in pairs( self.specialChar ) do
            log.info("11111111111",text,v)
            if string.find(text, v) then
                return true
            end
        end

        return false
    ]]
end

--是否存在文件夹
function Common:IsExistFolder( folderPath )
    local folderExists = false
    local dir, err = io.open(folderPath, "r")
    if dir then
        dir:close()
        folderExists = true
    end
    return folderExists
end

--是否为屏蔽词
function Common:IsMaskWords( mask )
    local pos1,pos2 = nil,nil
    for k, v in pairs( skynet.server.gameConfig.MaskWords ) do
        pos1,pos2 = string.find( mask , v )
        if pos1 and pos2 and pos1 ~= pos2 and "" ~= v then
            return true
        end
    end   
    return false
end

--打包数据
function Common:PackData( packBeforeData )
    --[[
        packBeforeData 的数据格式如下
        packBeforeData = {}
        packBeforeData["key1"] = "value1"
        packBeforeData["key2"] = "value2"
    ]]

    local packAfterData = {}
    local packIndex = 1
    for k, v in pairs( packBeforeData ) do
        packAfterData[ packIndex ] = k
        packIndex = packIndex + 1
        packAfterData[ packIndex ] = v
        packIndex = packIndex + 1
    end
    return packAfterData
end

skynet.server.common = Common
return Common