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service.go
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service.go
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package vkn
import (
"bytes"
"context"
"encoding/json"
"errors"
"io"
"net/http"
"net/url"
"github.com/google/uuid"
)
type srv struct {
token string
cnf Config
}
// New creates a new VKN service instance.
func New(cnf Config) Vkn {
return &srv{
cnf: cnf,
}
}
func (s *srv) Logout(ctx context.Context) error {
if s.token == "" {
return nil
}
data := url.Values{}
data.Set("assoscmd", "logout")
data.Set("rtype", "json")
data.Set("token", s.token)
client := &http.Client{}
r, _ := http.NewRequestWithContext(ctx, "POST", "https://earsivportal.efatura.gov.tr/earsiv-services/assos-login", bytes.NewBufferString(data.Encode()))
r.Header.Add("Content-Type", "application/x-www-form-urlencoded")
resp, err := client.Do(r)
if err != nil {
return err
}
defer resp.Body.Close()
s.token = ""
return nil
}
func (s *srv) Login(ctx context.Context) error {
data := url.Values{}
data.Set("assoscmd", "anologin")
data.Set("rtype", "json")
data.Set("userid", s.cnf.Username)
data.Set("sifre", s.cnf.Password)
data.Set("sifre2", s.cnf.Password)
data.Set("parola", "1")
client := &http.Client{}
r, _ := http.NewRequestWithContext(ctx, "POST", "https://earsivportal.efatura.gov.tr/earsiv-services/assos-login", bytes.NewBufferString(data.Encode()))
r.Header.Add("Content-Type", "application/x-www-form-urlencoded")
resp, err := client.Do(r)
if err != nil {
return err
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
return err
}
var result *loginResponse
if err := json.Unmarshal(body, &result); err != nil {
return err
}
if result.Token == "" {
return errors.New("token not found")
}
s.token = result.Token
return nil
}
func (s *srv) checkLogin(ctx context.Context) error {
if s.token == "" {
return s.Login(ctx)
}
return nil
}
func (s *srv) GetRecipient(ctx context.Context, vkn string) (*Recipient, error) {
err := s.checkLogin(ctx)
if err != nil {
return nil, err
}
id, err := uuid.NewUUID()
if err != nil {
return nil, err
}
data := url.Values{}
data.Set("cmd", "SICIL_VEYA_MERNISTEN_BILGILERI_GETIR")
data.Set("callid", id.String())
data.Set("pageName", "RG_BASITFATURA")
data.Set("token", s.token)
data.Set("jp", `{"vknTcknn":"`+vkn+`"}`)
client := &http.Client{}
r, _ := http.NewRequestWithContext(ctx, "POST", "https://earsivportal.efatura.gov.tr/earsiv-services/dispatch", bytes.NewBufferString(data.Encode()))
r.Header.Add("Content-Type", "application/x-www-form-urlencoded")
resp, err := client.Do(r)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
return nil, err
}
var result *GetRecipientResponse
if err := json.Unmarshal(body, &result); err != nil {
return nil, err
}
return result.Data, nil
}