spam.go

package main

import (
        "fmt"
        "net/http"
        "log"
        "github.com/sendgrid/sendgrid-go"
        "regexp"
)

//encode decode router
func CodeRouter (w http.ResponseWriter, req *http.Request) {

        //Get Email Values

        to := req.FormValue("from")
        subject := req.FormValue("subject")
        spam_score := req.FormValue("spam_score")
        spam_report := req.FormValue("spam_report")



        //use regex to get relevant info from spam report

        r, _ := regexp.Compile("([1-9].[0-9]\\s([A-Z]*\\w)*(((\\D)*[a-zA-Z]\\w)*\\s)*)")
        match := r.FindAllString(spam_report, -1)



        //Construct Body from spam report text taken from the Regular Expression

        startbody := "Your email has a Spam Score of <b>"+spam_score+"</b>. Whenever this score is above 5 it will most likely be rejected or sent to the spam folder by most email providers. You should always try to maintain a score less than 5 and as close to 0 as possible.  Below is a list of of the spam rules your email has triggered.<br><br><b>Scores + Rules Triggered:</b><br>"
        for x:=2; x<len(match); x++ {
           fmt.Println(match[x])
           startbody=startbody +match[x]
           startbody=startbody+"<br>"
        }


        //Setup Values to email

        subject = "Re: "+subject
        body := "<br><br>Raw Spam Report:<br>"+req.FormValue("spam_report")
        body = startbody+body
        emailBack(subject, to, body)

}


func emailBack(subject string, to string, body string) {

        sg := sendgrid.NewSendGridClient("username", "password")
        message := sendgrid.NewMail()
        message.AddTo(to)
        message.AddSubject(subject)
        message.AddHTML(body)
        message.AddFrom("check@spamtest.me")

        if r := sg.Send(message); r == nil {
           fmt.Println("Email sent!")
        } else {
           fmt.Println(r)
        }

}

func main() {
        http.HandleFunc("/spamcheck", CodeRouter)
        err := http.ListenAndServe(":3030", nil)
        if err != nil {
                log.Fatal("ListenAndServe: ", err)
        }
}