luci-app-mosdns: Add DDNS Lists support

* enforce ttl 5, no caches

luci-app-mosdns/luasrc/model/cbi/mosdns/rule_list.lua

@@ -6,6 +6,7 @@ local grey_list_file = "/etc/mosdns/rule/greylist.txt"
 local hosts_list_file = "/etc/mosdns/rule/hosts.txt"
 local redirect_list_file = "/etc/mosdns/rule/redirect.txt"
 local local_ptr_file = "/etc/mosdns/rule/local-ptr.txt"
+local ddns_list_file = "/etc/mosdns/rule/ddnslist.txt"
 
 m = Map("mosdns")
 
@@ -15,6 +16,7 @@ s.anonymous = true
 s:tab("white_list", translate("White Lists"))
 s:tab("block_list", translate("Block Lists"))
 s:tab("grey_list", translate("Grey Lists"))
+s:tab("ddns_list", translate("DDNS Lists"))
 s:tab("hosts_list", translate("Hosts"))
 s:tab("redirect_list", translate("Redirect"))
 s:tab("local_ptr_list", translate("Block PTR"))
@@ -49,6 +51,16 @@ o.validate = function(self, value)
     return value
 end
 
+o = s:taboption("ddns_list", TextValue, "ddns", "", "<font color='red'>" .. translate("These domains are always resolved using local DNS. And force TTL 5 seconds, DNS resolution results will not enter the cache. For example: myddns.example.com.") .. "</font>" .. "<font color='#00bd3e'>" .. translate("<br>The list of rules only apply to 'Default Config' profiles.") .. "</font>")
+o.rows = 15
+o.wrap = "off"
+o.cfgvalue = function(self, section) return nixio.fs.readfile(ddns_list_file) or "" end
+o.write = function(self, section, value) nixio.fs.writefile(ddns_list_file, value:gsub("\r\n", "\n")) end
+o.remove = function(self, section, value) nixio.fs.writefile(ddns_list_file, "") end
+o.validate = function(self, value)
+    return value
+end
+
 o = s:taboption("hosts_list", TextValue, "hosts", "", "<font color='red'>" .. translate("Hosts For example: baidu.com 10.0.0.1") .. "</font>" .. "<font color='#00bd3e'>" .. translate("<br>The list of rules only apply to 'Default Config' profiles.") .. "</font>")
 o.rows = 15
 o.wrap = "off"

luci-app-mosdns/po/zh-cn/mosdns.po

@@ -268,6 +268,12 @@ msgstr "灰名单"
 msgid "These domains are always resolved using remote DNS. Please input the domain names of websites, every line can input only one website domain. For example: google.com."
 msgstr "加入的域名始终使用 “远程 DNS” 进行解析（每个域名一行，支持域名匹配规则）"
 
+msgid "DDNS Lists"
+msgstr "DDNS 域名"
+
+msgid "These domains are always resolved using local DNS. And force TTL 5 seconds, DNS resolution results will not enter the cache. For example: myddns.example.com."
+msgstr "加入的域名始终使用 “本地 DNS” 进行解析，并且强制 TTL 5 秒，解析结果不会进入缓存（每个域名一行，支持域名匹配规则）"
+
 msgid "Hosts For example: baidu.com 10.0.0.1"
 msgstr "自定义 Hosts 重写，如：baidu.com 10.0.0.1（每个规则一行）"
 

luci-app-mosdns/root/usr/share/mosdns/default.yaml

@@ -44,6 +44,12 @@ plugins:
       files:
         - "/etc/mosdns/rule/greylist.txt"
 
+  - tag: ddnslist
+    type: domain_set
+    args:
+      files:
+        - "/etc/mosdns/rule/ddnslist.txt"
+
   - tag: hosts
     type: hosts
     args:
@@ -138,6 +144,15 @@ plugins:
       threshold: 500
       always_standby: true
 
+  - tag: query_is_ddns_domain
+    type: sequence
+    args:
+      - matches: qname $ddnslist
+        exec: ttl 5
+      - exec: $forward_local
+      - matches: has_resp
+        exec: accept
+
   - tag: query_is_local_domain
     type: sequence
     args:
@@ -187,6 +202,7 @@ plugins:
       - exec: jump has_resp_sequence
       - exec: $redirect
       - exec: jump has_resp_sequence
+      - exec: $query_is_ddns_domain
       - exec: $query_is_whitelist_domain
       - exec: $query_is_reject_domain
       - exec: $cache