Update he_ddns_enable.service

JACK-THINK · JACK-THINK · commit 42721d2bf3dd · 2022-10-07T07:33:17.000+08:00
diff --git a/he_ddns/bin/he_ddns_enable.service b/he_ddns/bin/he_ddns_enable.service
@@ -37,15 +37,10 @@ PRIVATE_VAR="${PRIVATE_ROOT}/var"
 # 设置自定义变量LOGFILE为日志文件
 LOGFILE="${PRIVATE_VAR}/log.txt"
 #
-# WAN0_GW_IFNAME: The interface name of gateway
-# 设置自定义变量WAN0_GW_IFNAME为网关设备名
+# WAN0_GW_IFNAME: The interface name of WAN0 gateway
+# 设置自定义变量WAN0_GW_IFNAME为WAN0网关设备名
 WAN0_GW_IFNAME="$(nvram get wan0_gw_ifname)"
 #
-# SOURCE_OF_PUBLIC_IP_ADDRESS: The source of public IP address
-# 设置自定义变量SOURCE_OF_PUBLIC_IP_ADDRESS为公网IP地址来源
-SOURCE_OF_PUBLIC_IP_ADDRESS="whatismyip.akamai.com"
-#SOURCE_OF_PUBLIC_IP_ADDRESS="ident.me"
-#
 # FQDN: The FQDN of the target server
 # 设置自定义变量FQDN为目标服务器FQDN
 FQDN="$(/opt/bin/sed -E -n -e 's#^FQDN=\"(.+)\"#\1#p' "${PRIVATE_ETC}/he_ddns.config")"
@@ -73,28 +68,87 @@ MAIL_TO="$(/opt/bin/sed -E -n -e 's#^MAIL_TO=\"(.+)\"#\1#p' "${PRIVATE_ETC}/he_d
 ########## END ##########
 #
 #
-########## TEST IP ADDRESS AND UPDATE DNS RECORD ##########
+########## LOAD FUNCTIONS ##########
+#
+getIPAddress()
+{
+    # SOURCE_OF_EXTERNAL_IP_ADDRESS: The source of external IP address
+    # 设置自定义变量SOURCE_OF_EXTERNAL_IP_ADDRESS为外部IP地址来源
+    for SOURCE_OF_EXTERNAL_IP_ADDRESS in "icanhazip.com" "whatismyip.akamai.com" "ident.me" "ifconfig.me"
+    do
+        # EXTERNAL_IPV4_ADDRESS: The external IPv4 address
+        # 设置自定义变量EXTERNAL_IPV4_ADDRESS为外部IPv4地址
+        EXTERNAL_IPV4_ADDRESS="$(/opt/bin/curl -s -4 "${SOURCE_OF_EXTERNAL_IP_ADDRESS}")"
+        #
+        # EXTERNAL_IPV6_ADDRESS: The external IPv6 address
+        # 设置自定义变量EXTERNAL_IPV6_ADDRESS为外部IPv6地址
+        #EXTERNAL_IPV6_ADDRESS="$(/opt/bin/curl -s -6 "${SOURCE_OF_EXTERNAL_IP_ADDRESS}")"
+        #
+        if [ -n "${EXTERNAL_IPV4_ADDRESS}" ]
+        then
+            break
+        fi
+        #
+    done
+    #
+    # WAN0_GW_IPV4_ADDRESS: The IPv4 address of the router's WAN0 gateway
+    # 设置自定义变量WAN0_GW_IPV4_ADDRESS为路由器WAN0网关IPv4地址
+    WAN0_GW_IPV4_ADDRESS="$(ip address show dev "${WAN0_GW_IFNAME}" | /opt/bin/sed -E -n -e 's/^[[:space:]]*inet[[:space:]]*([[:digit:]]*\.[[:digit:]]*\.[[:digit:]]*\.[[:digit:]]*).*/\1/p')"
+    #
+    # WAN0_GW_IPV6_ADDRESS: The IPv6 address of the router's WAN0 gateway
+    # 设置自定义变量WAN0_GW_IPV6_ADDRESS为路由器WAN0网关IPv6地址
+    #WAN0_GW_IPV6_ADDRESS="$()"
+}
+#
+########## END ##########
+#
+#
+########## TEST CONNECTION AND UPDATE DNS RECORD ##########
 #
-# FAIL_DATE: The date on which the 1st fail test of IP address happens
-# 设置自定义变量FAIL_DATE为首次IP地址测试失败的发生日期
+# FAIL_DATE: The date of the first failure
+# 设置自定义变量FAIL_DATE为首次失败的时间
 FAIL_DATE=""
 #
-# FAIL_COUNT: The count of fail tests of IP address
-# 设置自定义变量FAIL_COUNT为IP地址测试失败计数
+# FAIL_COUNT: The count of failure
+# 设置自定义变量FAIL_COUNT为失败计数
 FAIL_COUNT=0
 #
 # Test WAN connection
 # 测试WAN连接
 while [ ${FAIL_COUNT} -lt 3 ]
 do
-    ping -q -c 1 -s 32 -W 5 "${SOURCE_OF_PUBLIC_IP_ADDRESS}" > /dev/null 2>&1
+    RESULT_1_OF_CONNECTION_TEST="$(ping -q -c 1 -s 32 -W 5 "www.bing.com" 2> /dev/null | grep "100%")"
+    RESULT_2_OF_CONNECTION_TEST="$(ping -q -c 1 -s 32 -W 5 "www.alibaba.com" 2> /dev/null | grep "100%")"
+    RESULT_3_OF_CONNECTION_TEST="$(ping -q -c 1 -s 32 -W 5 "www.baidu.com" 2> /dev/null | grep "100%")"
     #
-    if [ ${?} -eq 0 ]
+    if [ -z "${RESULT_1_OF_CONNECTION_TEST}"] || [ -z "${RESULT_2_OF_CONNECTION_TEST}"] || [ -z "${RESULT_3_OF_CONNECTION_TEST}"]
     then
-        FAIL_DATE=""
-        FAIL_COUNT=0
+        getIPAddress
         #
-        break
+        if [ -n "${EXTERNAL_IPV4_ADDRESS}" ] && [ -n "${WAN0_GW_IPV4_ADDRESS}" ]
+        then
+            FAIL_DATE=""
+            FAIL_COUNT=0
+            #
+            break
+            #
+        else
+            if [ -z "${FAIL_DATE}" ]
+            then
+                FAIL_DATE="$(/opt/bin/date "+%F %T")"
+            fi
+            #
+            FAIL_COUNT=$((${FAIL_COUNT}+1))
+            #
+            if [ ${FAIL_COUNT} -ge 3 ]
+            then
+                /opt/bin/echo -e "FAILURE: [${FAIL_DATE}] CAN NOT GET IP ADDRESS" | /opt/bin/tee -a "${LOGFILE}"
+                #
+                exit 2
+            fi
+            #
+            /opt/bin/sleep 5
+        fi
         #
     else
         if [ -z "${FAIL_DATE}" ]
@@ -115,56 +169,40 @@ do
     fi
 done
 #
-# Check if the IP address of the router's WAN port is equal to the public IP address. If the answer is yes, update DNS record and exit. And if the answer is no, repeat the test up to 3 times. If all the answers are no, send an email as notification and exit.
-# 检查路由器WAN口IP地址是否为公网IP地址。如果是，则更新DNS记录，退出程序；如果不是，则重复测试三次。如三次全都不是，则发送通知邮件，退出程序
+# Check if the IP address of the router's WAN0 gateway is equal to the external IP address. If the answer is yes, update DNS record and exit. And if the answer is no, repeat the test up to 3 times. If all the answers are no, send an email as notification and exit.
+# 检查路由器WAN0网关IP地址是否为外部IP地址。如果是，则更新DNS记录，退出程序；如果不是，则重复测试三次。如三次全都不是，则发送通知邮件，退出程序
 #
 while [ ${FAIL_COUNT} -lt 3 ]
 do
-    # PUBLIC_IPV4_ADDRESS: The public IPv4 address
-    # 设置自定义变量PUBLIC_IPV4_ADDRESS为公网IPv4地址
-    PUBLIC_IPV4_ADDRESS="$(/opt/bin/curl -s -4 "${SOURCE_OF_PUBLIC_IP_ADDRESS}")"
-    #
-    # PUBLIC_IPV6_ADDRESS: The public IPv6 address
-    # 设置自定义变量PUBLIC_IPV6_ADDRESS为公网IPv6地址
-    #PUBLIC_IPV6_ADDRESS="$(/opt/bin/curl -s -6 "${SOURCE_OF_PUBLIC_IP_ADDRESS}")"
-    #
-    # WAN_IPV4_ADDRESS: The IPv4 address of the router's WAN port
-    # 设置自定义变量WAN_IPV4_ADDRESS为路由器WAN口IPv4地址
-    WAN_IPV4_ADDRESS="$(ip address show dev "${WAN0_GW_IFNAME}" | /opt/bin/sed -E -n -e 's/^[[:space:]]*inet[[:space:]]*([[:digit:]]*\.[[:digit:]]*\.[[:digit:]]*\.[[:digit:]]*).*/\1/p')"
-    #
-    # WAN_IPV6_ADDRESS: The IPv6 address of the router's WAN port
-    # 设置自定义变量WAN_IPV6_ADDRESS为路由器WAN口IPv6地址
-    #WAN_IPV6_ADDRESS="$()"
-    #
-    # Check if ${WAN_IPV4_ADDRESS} is equal to ${PUBLIC_IPV4_ADDRESS}
-    # 检查${WAN_IPV4_ADDRESS}与${PUBLIC_IPV4_ADDRESS}是否相等
-    if [ "${WAN_IPV4_ADDRESS}" == "${PUBLIC_IPV4_ADDRESS}" ]
+    # Check if ${WAN0_GW_IPV4_ADDRESS} is equal to ${EXTERNAL_IPV4_ADDRESS}
+    # 检查${WAN0_GW_IPV4_ADDRESS}与${EXTERNAL_IPV4_ADDRESS}是否相等
+    if [ "${WAN0_GW_IPV4_ADDRESS}" == "${EXTERNAL_IPV4_ADDRESS}" ]
     then
         # Choose one of the following metheds to update DNS record
-        # 如果${WAN_IPV4_ADDRESS}与${PUBLIC_IPV4_ADDRESS}相等，则执行
+        # 如果${WAN0_GW_IPV4_ADDRESS}与${EXTERNAL_IPV4_ADDRESS}相等，则执行
         #
         # GET IPv4
         # GET方法更新IPv4
-        RESULT="$(/opt/bin/curl -s -k "https://dyn.dns.he.net/nic/update?hostname=${FQDN}&password=${DDNS_PASSWORD}&myip=${PUBLIC_IPV4_ADDRESS}" | /opt/bin/sed -E -n -e 's/([[:alpha:]]+)[[:space:]]+.*/\1/p')"
+        RESULT_OF_DDNS_UPDATE="$(/opt/bin/curl -s -k "https://dyn.dns.he.net/nic/update?hostname=${FQDN}&password=${DDNS_PASSWORD}&myip=${EXTERNAL_IPV4_ADDRESS}" | /opt/bin/sed -E -n -e 's/([[:alpha:]]+)[[:space:]]+.*/\1/p')"
         #
         # GET IPv6
         # GET方法更新IPv6
-        #/opt/bin/curl -s -k "https://dyn.dns.he.net/nic/update?hostname=${FQDN}&password=${DDNS_PASSWORD}&myip=${PUBLIC_IPV6_ADDRESS}" > /dev/null 2>&1
+        #RESULT_OF_DDNS_UPDATE="$(/opt/bin/curl -s -k "https://dyn.dns.he.net/nic/update?hostname=${FQDN}&password=${DDNS_PASSWORD}&myip=${EXTERNAL_IPV6_ADDRESS}" | /opt/bin/sed -E -n -e 's/([[:alpha:]]+)[[:space:]]+.*/\1/p')"
         #
         # POST IPv4
         # POST方法更新IPv4
-        #/opt/bin/curl -s -k "https://dyn.dns.he.net/nic/update" -d "hostname=${FQDN}" -d "password=${DDNS_PASSWORD}" -d "myip=${PUBLIC_IPV4_ADDRESS}" > /dev/null 2>&1
+        #RESULT_OF_DDNS_UPDATE="$(/opt/bin/curl -s -k "https://dyn.dns.he.net/nic/update" -d "hostname=${FQDN}" -d "password=${DDNS_PASSWORD}" -d "myip=${EXTERNAL_IPV4_ADDRESS}" | /opt/bin/sed -E -n -e 's/([[:alpha:]]+)[[:space:]]+.*/\1/p')"
         #
         # POST IPv6
         # POST方法更新IPv6
-        #/opt/bin/curl -s -k "https://dyn.dns.he.net/nic/update" -d "hostname=${FQDN}" -d "password=${DDNS_PASSWORD}" -d "myip=${PUBLIC_IPV6_ADDRESS}" > /dev/null 2>&1
+        #RESULT_OF_DDNS_UPDATE="$(/opt/bin/curl -s -k "https://dyn.dns.he.net/nic/update" -d "hostname=${FQDN}" -d "password=${DDNS_PASSWORD}" -d "myip=${EXTERNAL_IPV6_ADDRESS}" | /opt/bin/sed -E -n -e 's/([[:alpha:]]+)[[:space:]]+.*/\1/p')"
         #
-        case "${RESULT}" in
+        case "${RESULT_OF_DDNS_UPDATE}" in
             "good")
-                /opt/bin/echo -e "SUCCESS: [$(/opt/bin/date "+%F %T")] ${FQDN} 👉 ${PUBLIC_IPV4_ADDRESS}" | /opt/bin/tee -a "${LOGFILE}"
+                /opt/bin/echo -e "SUCCESS: [$(/opt/bin/date "+%F %T")] ${FQDN} 👉 ${EXTERNAL_IPV4_ADDRESS}" | /opt/bin/tee -a "${LOGFILE}"
                 ;;
             "nochg")
-                /opt/bin/echo -e "NO-CHANGES: ${FQDN} 👉 ${PUBLIC_IPV4_ADDRESS}"
+                /opt/bin/echo -e "NO-CHANGES: ${FQDN} 👉 ${EXTERNAL_IPV4_ADDRESS}"
                 ;;
         esac
         #
@@ -174,41 +212,35 @@ do
         exit 0
         #
     else
-        # Check if ${FAIL_DATE} exists
-        # 检查${FAIL_DATE}是否存在
         if [ -z "${FAIL_DATE}" ]
         then
             FAIL_DATE="$(/opt/bin/date "+%F %T")"
         fi
         #
-        # Add 1 to ${FAIL_COUNT}
-        # ${FAIL_COUNT}加1
         FAIL_COUNT=$((${FAIL_COUNT}+1))
         #
-        # Check if ${FAIL_COUNT} is not less than 3
-        # 检查${FAIL_COUNT}是否不小于3
         if [ ${FAIL_COUNT} -ge 3 ]
         then
             # Send an email as notification
-            # 如果${WAN_IPV4_ADDRESS}与${PUBLIC_IPV4_ADDRESS}不等，则执行
-            /opt/bin/echo -e "FAILURE: [${FAIL_DATE}] PUBLIC_IP(${PUBLIC_IPV4_ADDRESS}) WAN_IP(${WAN_IPV4_ADDRESS})" | /opt/bin/tee -a "${LOGFILE}"
+            # 如果${WAN0_GW_IPV4_ADDRESS}与${EXTERNAL_IPV4_ADDRESS}不等，则执行
+            /opt/bin/echo -e "FAILURE: [${FAIL_DATE}] EXTERNAL_IP(${EXTERNAL_IPV4_ADDRESS}) WAN0_GW_IP(${WAN0_GW_IPV4_ADDRESS})" | /opt/bin/tee -a "${LOGFILE}"
             #
             # Prepare mail contents
             # 准备邮件内容
             MAIL_SUBJECT="DDNS ERROR: NO PUBLIC IP ADDRESS"
             MAIL_CONTENTS="${PRIVATE_USR}/NO_PUBLIC_IP_ADDRESS"
-            /opt/bin/sed -e '1i\From:'"${MAIL_FROM}"'\nTo:'"${MAIL_TO}"'\nSubject:'"${MAIL_SUBJECT}"'\n\nDATE: '"${FAIL_DATE}"'\nFQDN: '"${FQDN}"'\nWAN_IPV4_ADDRESS: '"${WAN_IPV4_ADDRESS}"'\nPUBLIC_IPV4_ADDRESS: '"${PUBLIC_IPV4_ADDRESS}"'' "${MAIL_CONTENTS}" > "${PRIVATE_TMP}/mail.tmp"
+            /opt/bin/sed -e '1i\From:'"${MAIL_FROM}"'\nTo:'"${MAIL_TO}"'\nSubject:'"${MAIL_SUBJECT}"'\n\nDATE: '"${FAIL_DATE}"'\nFQDN: '"${FQDN}"'\nWAN0_GW_IPV4_ADDRESS: '"${WAN0_GW_IPV4_ADDRESS}"'\nEXTERNAL_IPV4_ADDRESS: '"${EXTERNAL_IPV4_ADDRESS}"'' "${MAIL_CONTENTS}" > "${PRIVATE_TMP}/mail.tmp"
             #
             # Send
             # 发送
             /opt/bin/curl -s --url "${MAIL_SMTP_SERVER}" --mail-from "${MAIL_FROM}" --mail-rcpt "${MAIL_TO}" --upload-file "${PRIVATE_TMP}/mail.tmp" --user "${MAIL_FROM}:${MAIL_PASSWORD}" > /dev/null 2>&1
             #
-            exit 2
+            exit 3
         fi
         #
-        # Wait for 5 seconds
-        # 等待5秒
         /opt/bin/sleep 5
+        #
+        getIPAddress
     fi
 done
 #
