59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
package main // import "github.com/productionwentdown/email-collector"
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import (
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"encoding/csv"
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"log"
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"net/http"
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"os"
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"sync"
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"time"
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// modified from @badoux's checkmail
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"github.com/productionwentdown/email-collector/checkmail"
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)
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func main() {
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csvMutex := &sync.Mutex{}
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csvFile, err := os.OpenFile("list.csv", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
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defer csvFile.Close()
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if err != nil {
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log.Fatal(err)
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}
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csvWriter := csv.NewWriter(csvFile)
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http.HandleFunc("/subscribe", func(w http.ResponseWriter, r *http.Request) {
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err := r.ParseForm()
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if err != nil {
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log.Println(err)
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w.WriteHeader(400)
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w.Write([]byte("An error occurred. Please try again"))
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return
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}
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email := r.Form.Get("email")
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if err := checkmail.ValidateFormat(email); err != nil {
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log.Println(email, err)
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w.WriteHeader(400)
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w.Write([]byte("Email is not valid"))
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return
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}
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err = checkmail.ValidateHost(email)
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if _, ok := err.(checkmail.SmtpError); !ok && err != nil {
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log.Println(email, err)
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w.WriteHeader(400)
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w.Write([]byte("Email is not valid"))
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return
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}
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log.Println(email, "success")
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csvMutex.Lock()
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csvWriter.Write([]string{email, time.Now().String()})
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csvWriter.Flush()
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csvMutex.Unlock()
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w.Header().Add("Location", "/subscribed")
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w.WriteHeader(303)
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})
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log.Fatal(http.ListenAndServe(":8080", nil))
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}
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