55 lines
994 B
Go
55 lines
994 B
Go
package router
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import (
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"fmt"
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"net"
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"net/http"
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"strconv"
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"github.com/dcarrillo/whatismyip/service"
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"github.com/gin-gonic/gin"
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)
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type JSONScanResponse struct {
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IP string `json:"ip"`
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Port int `json:"port"`
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Reachable bool `json:"reachable"`
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Reason string `json:"reason"`
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}
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func scanTCPPort(ctx *gin.Context) {
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port, err := strconv.Atoi(ctx.Params.ByName("port"))
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if err == nil && (port < 1 || port > 65535) {
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err = fmt.Errorf("%d is not a valid port number", port)
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}
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if err != nil {
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ctx.JSON(http.StatusBadRequest, JSONScanResponse{
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Reason: err.Error(),
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})
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return
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}
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add := net.TCPAddr{
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IP: net.ParseIP(ctx.ClientIP()),
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Port: port,
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}
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scan := service.PortScanner{
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Address: &add,
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}
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isOpen, err := scan.IsPortOpen()
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reason := ""
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if err != nil {
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reason = err.Error()
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}
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response := JSONScanResponse{
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IP: ctx.ClientIP(),
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Port: port,
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Reachable: isOpen,
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Reason: reason,
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}
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ctx.JSON(http.StatusOK, response)
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}
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