#coding: utf-8
#-------------------------------------------------------------------
# aaPanel
#-------------------------------------------------------------------
# Copyright (c) 2015-2018 aaPanel(www.aapanel.com) All rights reserved.
#-------------------------------------------------------------------
# Author: hwliang <hwl@aapanel.com>
#-------------------------------------------------------------------

#------------------------------
# Apache管理模块
#------------------------------
import public,os,re,shutil,math,psutil,time
from json import loads
os.chdir("/www/server/panel")

class apache:
    setupPath = '/www/server'
    apachedefaultfile = "%s/apache/conf/extra/httpd-default.conf" % (setupPath)
    apachempmfile = "%s/apache/conf/extra/httpd-mpm.conf" % (setupPath)
    httpdconf = "%s/apache/conf/httpd.conf" % (setupPath)


    def GetProcessCpuPercent(self,i,process_cpu):
        try:
            pp = psutil.Process(i)
            if pp.name() not in process_cpu.keys():
                process_cpu[pp.name()] = float(pp.cpu_percent(interval=0.1))
            process_cpu[pp.name()] += float(pp.cpu_percent(interval=0.1))
        except:
            pass

    def GetApacheStatus(self):
        process_cpu = {}
        apacheconf = "%s/apache/conf/httpd.conf" % (self.setupPath)
        confcontent = public.readFile(apacheconf)
        rep = "#Include conf/extra/httpd-info.conf"
        if re.search(rep,confcontent):
            confcontent = re.sub(rep,"Include conf/extra/httpd-info.conf",confcontent)
            public.writeFile(apacheconf,confcontent)
            public.serviceReload()
        result = public.HttpGet('http://127.0.0.1/server-status?auto')
        try:
            workermen = int(public.ExecShell("ps aux|grep httpd|grep 'start'|awk '{memsum+=$6};END {print memsum}'")[0]) / 1024
        except:
            return public.get_msg_gettext(False, public.lang("Get worker RAM False"))
        for proc in psutil.process_iter():
            if proc.name() == "httpd":
                self.GetProcessCpuPercent(proc.pid,process_cpu)
        time.sleep(0.5)

        data = {}
        if not result:
            raise public.exceptions.HintException("Get Apache Status False, Please Check Apache Status")
        # 计算启动时间
        Uptime = re.search(r"ServerUptimeSeconds:\s+(.*)",result)
        if not Uptime:
            return public.get_msg_gettext(False, public.lang("Get worker Uptime False"))
        Uptime = int(Uptime.group(1))
        min = Uptime / 60
        hours = min / 60
        days = math.floor(hours / 24)
        hours = math.floor(hours - (days * 24))
        min = math.floor(min - (days * 60 * 24) - (hours * 60))

        #格式化重启时间
        restarttime = re.search(r"RestartTime:\s+(.*)",result)
        if not restarttime:
            return public.get_msg_gettext(False, public.lang("Get worker Restart Time False"))
        restarttime = restarttime.group(1)
        rep = r"\w+,\s([\w-]+)\s([\d\:]+)\s\w+"
        date = re.search(rep,restarttime)
        if not date:
            return public.get_msg_gettext(False, public.lang("Get worker date False"))
        date = date.group(1)
        timedetail = re.search(rep,restarttime)
        if not timedetail:
            return public.get_msg_gettext(False, public.lang("Get worker time detail False"))
        timedetail=timedetail.group(2)
        monthen = ["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"]
        n = 0
        for m in monthen:
            if m in date:
                date = re.sub(m,str(n+1),date)
            n+=1
        date = date.split("-")
        date = "%s-%s-%s" % (date[2],date[1],date[0])

        reqpersec = re.search(r"ReqPerSec:\s+(.*)", result)
        if not reqpersec:
            return public.get_msg_gettext(False, public.lang("Get worker reqpersec False"))
        reqpersec = reqpersec.group(1)
        if re.match(r"^\.", reqpersec):
            reqpersec = "%s%s" % (0,reqpersec)
        data["RestartTime"] = "%s %s" % (date,timedetail)
        data["UpTime"] = "%s day %s hour %s minute" % (str(int(days)),str(int(hours)),str(int(min)))
        total_acc = re.search(r"Total Accesses:\s+(\d+)",result)
        if not total_acc:
            return public.get_msg_gettext(False, public.lang("Get worker TotalAccesses False"))
        data["TotalAccesses"] = total_acc.group(1)
        total_kb = re.search(r"Total kBytes:\s+(\d+)",result)
        if not total_kb:
            return public.get_msg_gettext(False, public.lang("Get worker TotalKBytes False"))
        data["TotalKBytes"] = total_kb.group(1)
        data["ReqPerSec"] = round(float(reqpersec), 2)
        busywork = re.search(r"BusyWorkers:\s+(\d+)",result)
        if not busywork:
            return public.get_msg_gettext(False, public.lang("Get worker BusyWorkers False"))
        data["BusyWorkers"] = busywork.group(1)
        idlework = re.search(r"IdleWorkers:\s+(\d+)",result)
        if not idlework:
            return public.get_msg_gettext(False, public.lang("Get worker IdleWorkers False"))
        data["IdleWorkers"] = idlework.group(1)
        data["workercpu"] = round(float(process_cpu["httpd"]),2)
        data["workermem"] = "%s%s" % (int(workermen),"MB")
        return data

    def GetApacheValue(self):
        apachedefaultcontent = public.readFile(self.apachedefaultfile)
        apachempmcontent = public.readFile(self.apachempmfile)
        if not "mpm_event_module" in apachempmcontent:
            return public.returnMsg(False, public.lang("mpm_event_module conf not found or /www/server/apache/conf/extra/httpd-mpm.conf is empty"))
        apachempmcontent = re.search("\\<IfModule mpm_event_module\\>(\n|.)+?\\</IfModule\\>",apachempmcontent).group()
        ps = ["%s，%s" % (public.lang("Second"),public.lang("Request timeout")),
              public.lang("Keep alive"),
              "%s，%s" % (public.lang("Second"),public.lang("Connection timeout")),
              public.lang("Max keep-alive requests per connection")]
        gets = ["Timeout","KeepAlive","KeepAliveTimeout","MaxKeepAliveRequests"]
        if public.get_webserver() == 'apache':
            shutil.copyfile(self.apachedefaultfile, '/tmp/apdefault_file_bk.conf')
            shutil.copyfile(self.apachempmfile, '/tmp/apmpm_file_bk.conf')
        conflist = []
        n = 0
        for i in gets:
            rep = r"(%s)\s+(\w+)" % i
            k = re.search(rep, apachedefaultcontent)
            if not k:
                return public.return_msg_gettext(False, "Get Key {} False",(i,))
            k = k.group(1)
            v = re.search(rep, apachedefaultcontent)
            if not v:
                return public.return_msg_gettext(False, "Get Value {} False",(v,))
            v = v.group(2)
            psstr = ps[n]
            kv = {"name":k,"value":v,"ps":psstr}
            conflist.append(kv)
            n += 1

        ps = [public.lang("Default processes"),
              public.lang("Maximum number of idle threads"),
              public.lang("Minimum number of idle threads available to handle request spikes"),
              public.lang("Number of threads created by each child process"),
              public.lang("Maximum number of connections that will be processed simultaneously"),
              public.lang("Limit on the number of connections that an individual child server will handle during its life")]
        gets = ["StartServers","MaxSpareThreads","MinSpareThreads","ThreadsPerChild","MaxRequestWorkers","MaxConnectionsPerChild"]
        n = 0
        for i in gets:
            rep = r"(%s)\s+(\w+)" % i
            k = re.search(rep, apachempmcontent)
            if not k:
                return public.return_msg_gettext(False, "Get Key {} False",(i,))
            k = k.group(1)
            v = re.search(rep, apachempmcontent)
            if not v:
                return public.return_msg_gettext(False, "Get Value {} False",(v,))
            v = v.group(2)
            psstr = ps[n]
            kv = {"name": k, "value": v, "ps": psstr}
            conflist.append(kv)
            n += 1
        return(conflist)

    def SetApacheValue(self,get):
        apachedefaultcontent = public.readFile(self.apachedefaultfile)
        apachempmcontent = public.readFile(self.apachempmfile)
        if not "mpm_event_module" in apachempmcontent:
            return public.get_msg_gettext(False, public.lang("mpm_event_module conf not found or /www/server/apache/conf/extra/httpd-mpm.conf is empty"))
        conflist = []
        getdict = get.get_items()
        for i in getdict.keys():
            if i != "__module__" and i != "__doc__" and i != "data" and i != "args" and i != "action":
                getpost = {
                    "name": i,
                    "value": str(getdict[i])
                }
                conflist.append(getpost)
        for c in conflist:
            if c["name"] == "KeepAlive":
                if not re.search("on|off", c["value"]):
                    return public.get_msg_gettext(False, public.lang("Parameter ERROR!"))
            else:
                print(c["value"])
                if not re.search(r"\d+", c["value"]):
                    print(c["name"],c["value"])
                    return public.get_msg_gettext(False, public.lang("Parameter ERROR!"))

            rep = r"%s\s+\w+" % c["name"]
            if re.search(rep,apachedefaultcontent):
                newconf = "%s %s" % (c["name"],c["value"])
                apachedefaultcontent = re.sub(rep,newconf,apachedefaultcontent)
            elif re.search(rep,apachempmcontent):
                newconf = "%s\t\t\t%s" % (c["name"], c["value"])
                apachempmcontent = re.sub(rep, newconf , apachempmcontent)
        public.writeFile(self.apachedefaultfile,apachedefaultcontent)
        public.writeFile(self.apachempmfile, apachempmcontent)
        isError = public.checkWebConfig()
        if (isError != True):
            shutil.copyfile('/tmp/_file_bk.conf', self.apachedefaultfile)
            shutil.copyfile('/tmp/proxyfile_bk.conf', self.apachempmfile)
            return public.returnMsg(False, public.lang('ERROR: %s<br><a style="color:red;">' % public.lang("Configuration ERROR") + isError.replace("\n",
                                                                                            '<br>') + '</a>'))
        public.serviceReload()
        return public.get_msg_gettext(True, public.lang("Setup successfully!"))

    def add_httpd_access_log_format(self,args):
        '''
        @name 添加httpd日志格式
        @author zhwen<zhw@aapanel.com>
        @param log_format 需要设置的日志格式["$server_name","$remote_addr","-"....]
        @param log_format_name
        @param act 操作方式 add/edit
        '''
        try:
            log_format = loads(args.log_format)
            data = """
        #LOG_FORMAT_BEGIN_{n}
        LogFormat '{c}' {n}
        #LOG_FORMAT_END_{n}
""".format(n=args.log_format_name,c=' '.join(log_format))
            data = data.replace('%{User-agent}i','"%{User-agent}i"')
            data = data.replace('%{Referer}i', '"%{Referer}i"')
            if args.act == 'edit':
                self.del_httpd_access_log_format(args)
            conf = public.readFile(self.httpdconf)
            if not conf:
                return public.get_msg_gettext(False, public.lang("Configuration file not exist"))
            reg = '<IfModule log_config_module>'
            conf = re.sub(reg,'<IfModule log_config_module>'+data,conf)
            public.writeFile(self.httpdconf,conf)
            public.serviceReload()
            return public.get_msg_gettext(True, public.lang("Setup successfully!"))
        except:
            return public.returnMsg(False, str(public.get_error_info()))

    def del_httpd_access_log_format(self,args):
        '''
        @name 删除日志格式
        @author zhwen<zhw@aapanel.com>
        @param log_format_name
        '''
        conf = public.readFile(self.httpdconf)
        if not conf:
            return public.get_msg_gettext(False, public.lang("Configuration file not exist"))
        reg = '\\s*#LOG_FORMAT_BEGIN_{n}(\n|.)+#LOG_FORMAT_END_{n}\n?'.format(n=args.log_format_name)
        conf = re.sub(reg,'',conf)
        self._del_format_log_of_website(args.log_format_name)
        public.writeFile(self.httpdconf,conf)
        public.serviceReload()
        return public.get_msg_gettext(True, public.lang("Setup successfully!"))

    def del_all_log_format(self,args):
        all_format = self.get_httpd_access_log_format(args)
        for i in all_format:
            args.log_format_name = i
            self.del_httpd_access_log_format(args)

    def _del_format_log_of_website(self,log_format_name):
        site_format_log_status = self._get_format_log_to_website(log_format_name)
        try:
            for s in site_format_log_status.keys():
                if not site_format_log_status[s]:
                    continue
                website_conf_file = '/www/server/panel/vhost/apache/{}.conf'.format(s)
                format_exist_reg = r'CustomLog\s+"/www.*"\s+{}'.format(log_format_name)
                conf = public.readFile(website_conf_file)
                if not conf:continue
                if not re.search(format_exist_reg,conf):continue
                access_log = re.search(format_exist_reg,conf).group().split()
                access_log = access_log[0] + ' ' +access_log[1] + 'combined'
                conf = re.sub(format_exist_reg,access_log,conf)
                public.writeFile(website_conf_file,conf)
            return True
        except:
            return False

    def get_httpd_access_log_format_parameter(self,args=None):
        data = {
            "%h":"Client's IP address",
            "%r":"Request agreement",
            "%t":"Request time",
            "%>s":"http status code",
            "%b":"Send data size",
            "%{Referer}i":"http referer",
            "%{User-agent}i":"http user agent",
            "%{X-Forwarded-For}i":"The real ip of the client",
            "%l":"Remote login name",
            "%u":"Remote user",
            "-":"-"
        }
        if hasattr(args,'log_format_name'):
            site_list = self._get_format_log_to_website(args.log_format_name)
            return {'site_list':site_list,'format_log':data}
        else:
            return data

    def _process_log_format(self,tmp):
        log_tips = self.get_httpd_access_log_format_parameter()
        data = []
        for t in tmp:
            t = t.replace('\"','')
            t = t.replace("'", "")
            if t not in log_tips:
                continue
            data.append({t:log_tips[t]})
        return data

    def get_httpd_access_log_format(self,args=None):
        try:
            reg = "#LOG_FORMAT_BEGIN.*"
            conf = public.readFile(self.httpdconf)
            if not conf:
                return public.get_msg_gettext(False, public.lang("Configuration file not exist"))
            data = re.findall(reg,conf)
            format_name = [i.split('LOG_FORMAT_BEGIN_')[-1] for i in data]
            format_log = {}
            for i in format_name:
                format_reg = "#LOG_FORMAT_BEGIN_{n}(\n|.)+LogFormat\\s+\'(.*)\'\\s+{n}".format(n=i)
                tmp = re.search(format_reg,conf)
                if not tmp:
                    continue
                tmp = tmp.groups()[1].split()
                format_log[i] = self._process_log_format(tmp)
            return format_log
        except:
            return public.returnMsg(False,public.get_error_info())

    def set_httpd_format_log_to_website(self,args):
        '''
        @name 设置网站日志格式
        @author zhwen<zhw@aapanel.com>
        @param sites aaa.com,bbb.com
        @param log_format_name
        '''
        # sites = args.sites.split(',')
        sites = loads(args.sites)
        try:
            all_site = public.M('sites').field('name').select()
            reg = r'CustomLog\s+"/www.*{}\s*'.format(args.log_format_name)
            for site in all_site:
                website_conf_file = '/www/server/panel/vhost/apache/{}.conf'.format(site['name'])
                conf = public.readFile(website_conf_file)
                if not conf:
                    return public.get_msg_gettext(False, public.lang("Configuration file not exist"))
                format_exist_reg = r'(CustomLog\s+"/www.*\_log).*'
                access_log = re.search(format_exist_reg, conf).groups()[0] + '" ' + args.log_format_name
                if site['name'] not in sites and re.search(format_exist_reg,conf):
                    access_log = ' '.join(access_log.split()[:-1])
                    conf = re.sub(reg, access_log, conf)
                    public.writeFile(website_conf_file,conf)
                    continue
                conf = re.sub(format_exist_reg,access_log,conf)
                public.writeFile(website_conf_file,conf)
            public.serviceReload()
            return public.get_msg_gettext(True, public.lang("Setup successfully!"))
        except:
            return public.returnMsg(False, str(public.get_error_info()))

    def _get_format_log_to_website(self,log_format_name):
        tmp = public.M('sites').field('name').select()
        reg = 'CustomLog.*{}'.format(log_format_name)
        data = {}
        for i in tmp:
            website_conf_file = '/www/server/panel/vhost/apache/{}.conf'.format(i['name'])
            conf = public.readFile(website_conf_file)
            if not conf:
                data[i['name']] = False
                continue
            if re.search(reg,conf):
                data[i['name']] = True
            else:
                data[i['name']] = False
        return data
