Commit

middleware/cors.go

@@ -0,0 +1,24 @@
+package middleware
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+func Cors() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		method := c.Request.Method
+		origin := c.Request.Header.Get("Origin")
+		c.Header("Access-Control-Allow-Origin", origin)
+		c.Header("Access-Control-Allow-Headers", "Content-Type,AccessToken,X-CSRF-Token, Authorization, Token,X-Token,X-User-Id")
+		c.Header("Access-Control-Allow-Methods", "POST, GET, OPTIONS,DELETE,PUT")
+		c.Header("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Content-Type")
+		c.Header("Access-Control-Allow-Credentials", "true")
+
+		if method == "OPTIONS" {
+			c.AbortWithStatus(http.StatusNoContent)
+		}
+		c.Next()
+	}
+}

middleware/gin_recovery.go

@@ -0,0 +1,55 @@
+package middleware
+
+import (
+	"nCovTrack-Backend/utils"
+	"net"
+	"net/http"
+	"net/http/httputil"
+	"os"
+	"runtime/debug"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+)
+
+func GinRecovery(stack bool) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		defer func() {
+			if err := recover(); err != nil {
+				var brokenPipe bool
+				if ne, ok := err.(*net.OpError); ok {
+					if se, ok := ne.Err.(*os.SyscallError); ok {
+						if strings.Contains(strings.ToLower(se.Error()), "broken pipe") || strings.Contains(strings.ToLower(se.Error()), "connection reset by peer") {
+							brokenPipe = true
+						}
+					}
+				}
+				httpRequest, _ := httputil.DumpRequest(c.Request, true)
+				var logParams []interface{}
+				logParams = append(logParams,
+					"uri", c.Request.RequestURI,
+					"method", c.Request.Method,
+					"request", string(httpRequest),
+					"error", interface{}(err),
+				)
+				if brokenPipe {
+					utils.RequestLogPanic(logParams...)
+					c.Error(err.(error))
+					c.Abort()
+					return
+				}
+				logParams = append(logParams,
+					"status", "recovery from panic",
+				)
+				if stack {
+					logParams = append(logParams,
+						"stack", string(debug.Stack()),
+					)
+				}
+				utils.RequestLogPanic(logParams...)
+				c.AbortWithStatus(http.StatusInternalServerError)
+			}
+		}()
+		c.Next()
+	}
+}

middleware/request_log.go

@@ -0,0 +1,54 @@
+package middleware
+
+import (
+	"nCovTrack-Backend/utils"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+func RequestLog() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var logParams []interface{}
+
+		// All requests' log;
+		logParams = append(logParams,
+			"uri", c.Request.RequestURI,
+			"mothod", c.Request.Method,
+		)
+		startTime := time.Now()
+
+		c.Next()
+
+		cost := time.Since(startTime)
+		logParams = append(logParams, "cost", cost.String())
+
+		// Log while request is allright;
+		if c.Writer.Status() == http.StatusOK && cost.Milliseconds() < 800 {
+			utils.RequestLogInfo(logParams...)
+			return
+		}
+
+		// Log while request cost an unexpected time;
+		if cost >= 800 {
+			logParams = append(logParams,
+				"status", c.Writer.Status(),
+				"query", c.Request.URL.Query(),
+				"header", c.Request.Header,
+				"body", c.Request.Body,
+				"ip", c.ClientIP(),
+			)
+			utils.RequestLogWarn(logParams...)
+			return
+		}
+
+		// Log while response occurred some error;
+		if c.Writer.Status() != http.StatusOK {
+			logParams = append(logParams,
+				"error", c.Errors.ByType(gin.ErrorTypePrivate).String(),
+			)
+			utils.RequestLogError(logParams...)
+		}
+	}
+}