Fix timeout bug.

app/models/ruling_weather_setting.rb

@@ -8,6 +8,32 @@ class RulingWeatherSetting
   field :dataid, type: String, default: ""
   field :observatory_name, type: String, default: ""
   has_one :ruling_weather_cache
+  def net_http_get_response(uri,headers={})
+    port = uri.port
+    host = uri.host
+    http = Net::HTTP.new(host, port)
+    scheme = uri.scheme
+    if scheme == "https" || port.to_i == 443
+      http.verify_mode = OpenSSL::SSL::VERIFY_NONE
+      http.use_ssl = true
+      http.open_timeout = 3
+      http.ssl_timeout = 1
+    end
+    http.read_timeout = 1
+    relative_path = (uri.path.blank? ? "/" : uri.path)
+    # if !relative_path.start_with?("http") && !relative_path.start_with?("/")
+    #   relative_path = "/" + relative_path
+    # end
+    # relative_path = relative_path.sub(/^\/\.\.\/(\.\.\/)*/,'/')
+    # while relative_path.include?("/../") do
+    #   relative_path = relative_path.gsub(/\/[^\/]+\/\.\.\//,'/')
+    # end
+    # relative_path = relative_path.gsub('//','/')
+    relative_path = URI.decode(relative_path)
+    relative_path += (uri.query.blank? ? '' : "?#{URI.decode(uri.query)}")
+    res = http.get(relative_path.gsub(" ","%20"))
+    res
+  end
   def get_now_info(custom_location=nil,custom_dataid=nil,custom_observatory_name=nil)
     time_now = DateTime.now.utc.new_offset(self.time_offset)
     today = time_now.strftime("%Y-%m-%d")
@@ -22,15 +48,21 @@ class RulingWeatherSetting
             "timeTo" => endt,
             "limit" => 1,
             "locationName" => custom_location}
-    res = Net::HTTP.get_response(URI.parse("#{url}?#{data.to_query}"))
-    content = JSON.parse(res.body)
-    cahche_model = self.ruling_weather_cache
-    if cahche_model.nil?
-      cahche_model = RulingWeatherCache.create(:cache=>{},:ruling_weather_setting=>self)
+    timeout_flag = false
+    begin
+      cahche_model = self.ruling_weather_cache
+      if cahche_model.nil?
+        cahche_model = RulingWeatherCache.create(:cache=>{},:ruling_weather_setting=>self)
+      end
+      cache = cahche_model.cache rescue {}
+      res = net_http_get_response(URI.parse("#{url}?#{data.to_query}"))
+      content = JSON.parse(res.body)
+      weather_data = get_weather_data(content) rescue {}
+    rescue Errno::EHOSTUNREACH, Net::ReadTimeout, Net::OpenTimeout
+      timeout_flag = true
+      weather_data = {}
     end
-    cache = cahche_model.cache rescue {}
-    weather_data = get_weather_data(content) rescue {}
-    if (weather_data.count == 0 rescue true)
+    if timeout_flag || (weather_data.count == 0 rescue true)
       mint = cache["mint"].to_i
       maxt = cache["maxt"].to_i
       avgt = cache["avgt"].to_i
@@ -58,9 +90,10 @@ class RulingWeatherSetting
     else
       wx_code = wx_code.to_s
     end
-    svg_type = "day"
     if time_now.hour >= 18
       svg_type = "night"
+    else
+      svg_type = "day"
     end
     wx_svg = "/assets/ruling_weather/svg_icon/#{svg_type}/#{wx_code}.svg"
     custom_observatory_name = custom_observatory_name || self.observatory_name
@@ -69,14 +102,22 @@ class RulingWeatherSetting
             "locationName" => custom_observatory_name}
     rain = nil
     if custom_observatory_name.present?
-      url2 = "https://opendata.cwb.gov.tw/api/v1/rest/datastore/O-A0002-001.json"
-      res2 = Net::HTTP.get_response(URI.parse("#{url2}?#{data2.to_query}"))
-      content2 = JSON.parse(res2.body)
-      weather_data2 = get_weather_data(content2) rescue {}
-      if (weather_data2.count == 0 rescue true)
-        rain = cache["rain"]
+      if timeout_flag
+        rain = cache["rain"].to_f rescue 0.0
       else
-        rain = weather_data2["NOW"]["elementValue"].to_f rescue 0.0
+        url2 = "https://opendata.cwb.gov.tw/api/v1/rest/datastore/O-A0002-001.json"
+        begin
+          res2 = net_http_get_response(URI.parse("#{url2}?#{data2.to_query}"))
+          content2 = JSON.parse(res2.body)
+          weather_data2 = get_weather_data(content2) rescue {}
+        rescue Errno::EHOSTUNREACH, Net::ReadTimeout, Net::OpenTimeout
+          weather_data2 = {}
+        end
+        if (weather_data2.count == 0 rescue true)
+          rain = cache["rain"].to_f rescue 0.0
+        else
+          rain = weather_data2["NOW"]["elementValue"].to_f rescue 0.0
+        end
       end
     end
     result = {"mint" => mint,
@@ -86,6 +127,7 @@ class RulingWeatherSetting
               "uvi" => uvi,
               "uvi_text" => uvi_text,
               "rh" => rh,
+              "wx_code" => wx_code,
               "wx_text" => wx_text,
               "wx_svg" => wx_svg,
               "ws" => ws,
@@ -110,7 +152,7 @@ class RulingWeatherSetting
             "timeTo" => endt,
             "limit" => 1,
             "locationName" => custom_location}
-    res = Net::HTTP.get_response(URI.parse("#{url}?#{data.to_query}"))
+    res = net_http_get_response(URI.parse("#{url}?#{data.to_query}"))
     content = JSON.parse(res.body)
     weather_data = get_weather_data(content) rescue {}
   end