first commit: one-api base code + SAAS plan document

common/helper/helper.go

@@ -0,0 +1,174 @@
+package helper
+
+import (
+	"context"
+	"fmt"
+	"html/template"
+	"log"
+	"net"
+	"os/exec"
+	"runtime"
+	"strconv"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"github.com/songquanpeng/one-api/common/random"
+)
+
+func OpenBrowser(url string) {
+	var err error
+
+	switch runtime.GOOS {
+	case "linux":
+		err = exec.Command("xdg-open", url).Start()
+	case "windows":
+		err = exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()
+	case "darwin":
+		err = exec.Command("open", url).Start()
+	}
+	if err != nil {
+		log.Println(err)
+	}
+}
+
+func GetIp() (ip string) {
+	ips, err := net.InterfaceAddrs()
+	if err != nil {
+		log.Println(err)
+		return ip
+	}
+
+	for _, a := range ips {
+		if ipNet, ok := a.(*net.IPNet); ok && !ipNet.IP.IsLoopback() {
+			if ipNet.IP.To4() != nil {
+				ip = ipNet.IP.String()
+				if strings.HasPrefix(ip, "10") {
+					return
+				}
+				if strings.HasPrefix(ip, "172") {
+					return
+				}
+				if strings.HasPrefix(ip, "192.168") {
+					return
+				}
+				ip = ""
+			}
+		}
+	}
+	return
+}
+
+var sizeKB = 1024
+var sizeMB = sizeKB * 1024
+var sizeGB = sizeMB * 1024
+
+func Bytes2Size(num int64) string {
+	numStr := ""
+	unit := "B"
+	if num/int64(sizeGB) > 1 {
+		numStr = fmt.Sprintf("%.2f", float64(num)/float64(sizeGB))
+		unit = "GB"
+	} else if num/int64(sizeMB) > 1 {
+		numStr = fmt.Sprintf("%d", int(float64(num)/float64(sizeMB)))
+		unit = "MB"
+	} else if num/int64(sizeKB) > 1 {
+		numStr = fmt.Sprintf("%d", int(float64(num)/float64(sizeKB)))
+		unit = "KB"
+	} else {
+		numStr = fmt.Sprintf("%d", num)
+	}
+	return numStr + " " + unit
+}
+
+func Interface2String(inter interface{}) string {
+	switch inter := inter.(type) {
+	case string:
+		return inter
+	case int:
+		return fmt.Sprintf("%d", inter)
+	case float64:
+		return fmt.Sprintf("%f", inter)
+	}
+	return "Not Implemented"
+}
+
+func UnescapeHTML(x string) interface{} {
+	return template.HTML(x)
+}
+
+func IntMax(a int, b int) int {
+	if a >= b {
+		return a
+	} else {
+		return b
+	}
+}
+
+func GenRequestID() string {
+	return GetTimeString() + random.GetRandomNumberString(8)
+}
+
+func SetRequestID(ctx context.Context, id string) context.Context {
+	return context.WithValue(ctx, RequestIdKey, id)
+}
+
+func GetRequestID(ctx context.Context) string {
+	rawRequestId := ctx.Value(RequestIdKey)
+	if rawRequestId == nil {
+		return ""
+	}
+	return rawRequestId.(string)
+}
+
+func GetResponseID(c *gin.Context) string {
+	logID := c.GetString(RequestIdKey)
+	return fmt.Sprintf("chatcmpl-%s", logID)
+}
+
+func Max(a int, b int) int {
+	if a >= b {
+		return a
+	} else {
+		return b
+	}
+}
+
+func AssignOrDefault(value string, defaultValue string) string {
+	if len(value) != 0 {
+		return value
+	}
+	return defaultValue
+}
+
+func MessageWithRequestId(message string, id string) string {
+	return fmt.Sprintf("%s (request id: %s)", message, id)
+}
+
+func String2Int(str string) int {
+	num, err := strconv.Atoi(str)
+	if err != nil {
+		return 0
+	}
+	return num
+}
+
+func Float64PtrMax(p *float64, maxValue float64) *float64 {
+	if p == nil {
+		return nil
+	}
+	if *p > maxValue {
+		return &maxValue
+	}
+	return p
+}
+
+func Float64PtrMin(p *float64, minValue float64) *float64 {
+	if p == nil {
+		return nil
+	}
+	if *p < minValue {
+		return &minValue
+	}
+	return p
+}

common/helper/key.go

@@ -0,0 +1,5 @@
+package helper
+
+const (
+	RequestIdKey = "X-Oneapi-Request-Id"
+)

common/helper/time.go

@@ -0,0 +1,20 @@
+package helper
+
+import (
+	"fmt"
+	"time"
+)
+
+func GetTimestamp() int64 {
+	return time.Now().Unix()
+}
+
+func GetTimeString() string {
+	now := time.Now()
+	return fmt.Sprintf("%s%d", now.Format("20060102150405"), now.UnixNano()%1e9)
+}
+
+// CalcElapsedTime return the elapsed time in milliseconds (ms)
+func CalcElapsedTime(start time.Time) int64 {
+	return time.Now().Sub(start).Milliseconds()
+}