fix net getLocationIP

third/wechat.go

@@ -0,0 +1,65 @@
+package third
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"encoding/base64"
+	"errors"
+)
+
+func WeChat_Decrypt(sessionKey, encryptedData, iv string) (string, error) {
+	aesKey, err := base64.StdEncoding.DecodeString(sessionKey)
+	if err != nil {
+		return "", err
+	}
+	cipherText, err := base64.StdEncoding.DecodeString(encryptedData)
+	if err != nil {
+		return "", err
+	}
+	ivBytes, err := base64.StdEncoding.DecodeString(iv)
+	if err != nil {
+		return "", err
+	}
+	block, err := aes.NewCipher(aesKey)
+	if err != nil {
+		return "", err
+	}
+	mode := cipher.NewCBCDecrypter(block, ivBytes)
+	mode.CryptBlocks(cipherText, cipherText)
+	cipherText, err = WeChat_Pkcs7Unpad(cipherText, block.BlockSize())
+	if err != nil {
+		return "", err
+	}
+
+	return string(cipherText), nil
+}
+
+// pkcs7Unpad returns slice of the original data without padding
+func WeChat_Pkcs7Unpad(data []byte, blockSize int) ([]byte, error) {
+	var (
+		// ErrInvalidBlockSize block size不合法
+		ErrInvalidBlockSize = errors.New("invalid block size")
+		// ErrInvalidPKCS7Data PKCS7数据不合法
+		ErrInvalidPKCS7Data = errors.New("invalid PKCS7 data")
+		// ErrInvalidPKCS7Padding 输入padding失败
+		ErrInvalidPKCS7Padding = errors.New("invalid padding on input")
+	)
+
+	if blockSize <= 0 {
+		return nil, ErrInvalidBlockSize
+	}
+	if len(data)%blockSize != 0 || len(data) == 0 {
+		return nil, ErrInvalidPKCS7Data
+	}
+	c := data[len(data)-1]
+	n := int(c)
+	if n == 0 || n > len(data) {
+		return nil, ErrInvalidPKCS7Padding
+	}
+	for i := 0; i < n; i++ {
+		if data[len(data)-n+i] != c {
+			return nil, ErrInvalidPKCS7Padding
+		}
+	}
+	return data[:len(data)-n], nil
+}

utils/net.go

@@ -9,6 +9,7 @@ import (
 	"net/http"
 	"os"
 	"strconv"
+	"strings"
 )
 
 func IsPublicIP(ipString string) bool {
@@ -32,24 +33,55 @@ func IsPublicIP(ipString string) bool {
 }
 
 // Get Location IP .
-func GetLocationIP() string {
+func GetLocationIP() (localIp string) {
-	addrs, err := net.InterfaceAddrs()
+	localIp = "127.0.0.1"
+	// Get all network interfaces
+	interfaces, err := net.Interfaces()
 	if err != nil {
-		return ""
+		return
 	}
-	ip := ""
+
-	for _, a := range addrs {
+	for _, iface := range interfaces {
-		if ipnet, ok := a.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
+		// Skip the loopback interface
-			if ipnet.IP.To4() != nil {
+		if iface.Flags&net.FlagLoopback != 0 {
-				ip = ipnet.IP.String()
+			continue
-				break
+		}
+
+		// Get addresses associated with the interface
+		addrs, err := iface.Addrs()
+		if err != nil {
+			continue
+		}
+
+		for _, addr := range addrs {
+			// Check if the address is an IPNet
+			ipnet, ok := addr.(*net.IPNet)
+			if !ok || ipnet.IP.IsLoopback() {
+				continue
+			}
+
+			// Get the IP address
+			ip := ipnet.IP.To4()
+			if ip == nil {
+				continue
+			}
+
+			// Skip IP addresses in the 169.254.x.x range
+			if strings.HasPrefix(ip.String(), "169.254") {
+				continue
+			}
+
+			// Skip IP addresses in the 169.254.x.x range
+			if strings.HasPrefix(ip.String(), "26.26") {
+				continue
+			}
+
+			// Return the first valid IP address found
+			return ip.String()
 		}
 	}
-	}
+
-	if ip == "" {
+	return
-		return ""
-	}
-	return ip
 }
 
 func LocalIPv4s() ([]string, error) {

utils/time.go

@@ -0,0 +1,14 @@
+package utils
+
+import (
+	"time"
+)
+
+func Time2String(layout string, t time.Time) string {
+	return t.Format(layout)
+}
+
+func String2Time(layout, in string) time.Time {
+	t, _ := time.ParseInLocation(layout, in, time.Local)
+	return t
+}