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handler.go
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handler.go
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package tls
import (
"fmt"
"net/http"
"time"
"github.com/elmasy-com/elmasy/internal/utils"
"github.com/elmasy-com/elmasy/pkg/go-sdk"
etls "github.com/elmasy-com/elmasy/pkg/protocols/tls"
"github.com/elmasy-com/identify"
"github.com/gin-gonic/gin"
)
type Cipher struct {
Name string
Security string
}
type Result struct {
IP string `json:"ip"`
Version string `json:"version"`
Supported bool `json:"supported"`
Ciphers []Cipher `json:"ciphers"`
}
func Get(c *gin.Context) {
version := c.Query("version")
if version == "" {
err := fmt.Errorf("version is empty")
c.Error(err)
c.JSON(http.StatusBadRequest, sdk.Error{Err: err.Error()})
return
}
if version != "ssl30" && version != "tls10" && version != "tls11" && version != "tls12" && version != "tls13" {
err := fmt.Errorf("Invalid version: %s", version)
c.Error(err)
c.JSON(http.StatusBadRequest, sdk.Error{Err: err.Error()})
return
}
network := c.DefaultQuery("network", "tcp")
if network != "tcp" && network != "udp" {
err := fmt.Errorf("Invalid network: %s", network)
c.Error(err)
c.JSON(http.StatusBadRequest, sdk.Error{Err: err.Error()})
return
}
ip := c.Query("ip")
if ip == "" {
err := fmt.Errorf("ip is empty")
c.Error(err)
c.JSON(http.StatusBadRequest, sdk.Error{Err: err.Error()})
return
}
if !identify.IsValidIP(ip) {
err := fmt.Errorf("Invalid ip: %s", ip)
c.Error(err)
c.JSON(http.StatusBadRequest, sdk.Error{Err: err.Error()})
return
}
ip = utils.IPv6BracketAdd(ip)
port := c.Query("port")
if port == "" {
err := fmt.Errorf("port is empty")
c.Error(err)
c.JSON(http.StatusBadRequest, sdk.Error{Err: err.Error()})
return
}
if !identify.IsValidPort(port) {
err := fmt.Errorf("Invalid port: %s", port)
c.Error(err)
c.JSON(http.StatusBadRequest, sdk.Error{Err: err.Error()})
return
}
servername := c.Query("servername")
r, err := etls.Scan(version, network, ip, port, 2*time.Second, servername)
if err != nil {
err := fmt.Errorf("Failed to scan: %s", err)
c.Error(err)
c.JSON(http.StatusInternalServerError, sdk.Error{Err: err.Error()})
return
}
c.JSON(http.StatusOK, sdk.TLSVersion{Version: version, Supported: r.Supported, Ciphers: convertCiphers(r.Ciphers)})
}