next iteration on unsubscribing

main.go

@@ -1,11 +1,25 @@
 package main
 
 import (
+	"crypto/sha256"
+	"encoding/json"
+	"fmt"
+	"io"
 	"net/http"
 	"net/url"
 	"strings"
+
+	"github.com/rs/zerolog"
+	"github.com/rs/zerolog/log"
+	"github.com/samber/lo"
 )
 
+var client = &http.Client{}
+
+func init() {
+	log.Logger = zerolog.New(logSplitter{}).With().Timestamp().Logger()
+}
+
 type Confirmation struct {
 	FormId              string `json:"formId"`
 	FollowUpUrl         string `json:"followUpUrl"`
@@ -14,35 +28,113 @@ type Confirmation struct {
 	AliId               string `json:"aliId"`
 }
 
-func Unsubscribe() {
-	values := url.Values{
-		"Email":          {"ryan.walters@my.utsa.edu"},
-		"Unsubscribed":   {"Yes"},
-		"formid":         {"1"},
-		"lpId":           {"1"},
-		"subId":          {"98"},
-		"munchkinId":     {"839-MOL-552"},
-		"lpurl":          {"http://839-MOL-552.mktoweb.com/lp/839-MOL-552/UnsubscribePage.html?cr={creative}&kw={keyword}"},
-		"followupLpId":   {"2"},
-		"cr":             {""},
-		"kw":             {""},
-		"q":              {""},
-		"_mkt_trk":       {""},
-		"formVid":        {"1"},
-		"mkt_tok":        {"ODM5LU1PTC01NTIAAAGQRiDbOUWzUhLliVDxTHjxLfZDD1y0MxC47Wf_1C9UTbwEej3Tckhn_QteZR7p5Mpl3_f0ioPUyQ8XUceJ9a0PiOUJb_O3YIj8PwKNQEm4SseaSw"},
-		"_mktoReferrer":  {"http://www2.thescla.org/UnsubscribePage.html?mkt_unsubscribe=1&mkt_tok=ODM5LU1PTC01NTIAAAGQRiDbOUWzUhLliVDxTHjxLfZDD1y0MxC47Wf_1C9UTbwEej3Tckhn_QteZR7p5Mpl3_f0ioPUyQ8XUceJ9a0PiOUJb_O3YIj8PwKNQEm4SseaSw"},
-		"checksumFields": {"Email,Unsubscribed,formid,lpId,subId,munchkinId,lpurl,followupLpId,cr,kw,q,_mkt_trk,formVid,mkt_tok,_mktoReferrer"},
-		"checksum":       {"062bb614ebe52a624577123e91c0e7e0d6d069178d2d23d7bd1fa9db85b05472"},
+func DoRequest(req *http.Request) (*http.Response, []byte, error) {
+	log.Debug().Str("method", req.Method).Str("host", req.Host).Str("path", req.URL.Path).Msg("Request")
+	resp, err := client.Do(req)
+
+	if err != nil {
+		log.Error().Err(err).Msg("Error making request")
+		return nil, nil, err
 	}
 
-	req, _ := http.NewRequest("POST", "http://www2.thescla.org/index.php/leadCapture/save2", strings.NewReader(values.Encode()))
-	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-	req.Header.Set("X-Requested-With", "XMLHttpRequest")
+	defer resp.Body.Close()
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		log.Error().Err(err).Msg("Error reading response body")
+		return nil, nil, err
+	}
+
+	log.Debug().Int("code", resp.StatusCode).Str("content-type", resp.Header.Get("Content-Type")).Int("content-length", len(body)).Msg("Response")
+
+	return resp, body, nil
+}
+
+func ApplyHeaders(req *http.Request) {
 	req.Header.Set("Origin", "http://www2.thescla.org")
 	req.Header.Set("Connection", "keep-alive")
-	req.Header.Set("Referer", "http://www2.thescla.org/UnsubscribePage.html?mkt_unsubscr")
+	req.Header.Set("User-Agent", "Mozilla/5.0 (X11; Linux x86_64; rv:122.0) Gecko/20100101 Firefox/122.0")
+	req.Header.Set("Accept", "application/json, text/javascript, */*; q=0.01")
+	req.Header.Set("Accept-Language", "en-US,en;q=0.5")
+	req.Header.Set("Accept-Encoding", "gzip, deflate")
+}
+
+func Unsubscribe(email string) *Confirmation {
+	mktTok := "ODM5LU1PTC01NTIAAAGQRiDbOUWzUhLliVDxTHjxLfZDD1y0MxC47Wf_1C9UTbwEej3Tckhn_QteZR7p5Mpl3_f0ioPUyQ8XUceJ9a0PiOUJb_O3YIj8PwKNQEm4SseaSw"
+
+	// Build referrer URL
+	referrerUrl, _ := url.Parse("http://www2.thescla.org/UnsubscribePage.html")
+	query := referrerUrl.Query()
+	query.Add("mkt_unsubscribe", "1")
+	query.Add("mkt_tok", mktTok)
+	referrerUrl.RawQuery = query.Encode()
+
+	thing := "839-MOL-552"
+	lpUrl := fmt.Sprintf("http://%s.mktoweb.com/lp/%s/UnsubscribePage.html?cr={creative}&kw={keyword}", thing, thing)
+
+	values := url.Values{
+		"Email":         {email},
+		"Unsubscribed":  {"Yes"},
+		"formid":        {"1"},
+		"lpId":          {"1"},
+		"subId":         {"98"},
+		"munchkinId":    {thing},
+		"lpurl":         {lpUrl},
+		"followupLpId":  {"2"},
+		"cr":            {""},
+		"kw":            {""},
+		"q":             {""},
+		"_mkt_trk":      {""},
+		"formVid":       {"1"},
+		"mkt_tok":       {mktTok},
+		"_mktoReferrer": {referrerUrl.String()},
+	}
+
+	fields := []string{"Email", "Unsubscribed", "formid", "lpId", "subId", "munchkinId", "lpurl", "followupLpId", "cr", "kw", "q", "_mkt_trk", "formVid", "mkt_tok", "_mktoReferrer"}
+	// fields := make([]string, 0, len(values))
+	// for key, _ := range values {
+	// 	fields = append(fields, key)
+	// }
+	values.Set("checksumFields", strings.Join(fields, ","))
+	log.Printf("%+v", values.Get("checksumFields"))
+
+	// Calculate checksum
+	h := sha256.New()
+	h.Write([]byte(strings.Join(
+		lo.Map(fields, func(field string, _ int) string {
+			return values.Get(field)
+		}), "|")))
+
+	hex := fmt.Sprintf("%x", h.Sum(nil))
+	values.Set("checksum", hex)
+	log.Debug().Str("hex", hex).Msg("Checksum")
+
+	// Make request
+	request, _ := http.NewRequest("POST", "http://www2.thescla.org/index.php/leadCapture/save2", strings.NewReader(values.Encode()))
+	request.Header.Set("Referer", "http://www2.thescla.org/UnsubscribePage.html?mkt_unsubscribe=1")
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.Header.Set("X-Requested-With", "XMLHttpRequest")
+	ApplyHeaders(request)
+
+	response, body, err := DoRequest(request)
+	if err != nil {
+		panic(err)
+	}
+
+	if response.StatusCode != 200 {
+		log.Print(string(body))
+		return nil
+	}
+
+	var confirmation Confirmation
+	json.Unmarshal(body, &confirmation)
+	return &confirmation
 }
 
 func main() {
-
+	conf := Unsubscribe("ryan.walters@my.utsa.edu")
+	if conf != nil {
+		log.Info().Str("formId", conf.FormId).Str("followUpUrl", conf.FollowUpUrl).Str("deliveryType", conf.DeliveryType).Str("followUpStreamValue", conf.FollowUpStreamValue).Str("aliId", conf.AliId).Msg("Unsubscribed")
+	} else {
+		log.Error().Msg("Failed to Unsubscribe")
+	}
 }