Add kyc tool library

Signed-off-by: Asai Neko <sugar@sne.moe>

internal/ali_cnrid/types.go

@@ -1,7 +0,0 @@
-package kyc
-
-type KycAli struct {
-	ParamType   string `json:"param_type"`
-	IdentifyNum string `json:"identify_num"`
-	UserName    string `json:"user_name"`
-}

internal/kyc/cnrid.go

@@ -2,13 +2,8 @@ package kyc
 
 import (
 	"crypto/md5"
-	"encoding/base64"
 	"encoding/hex"
-	"encoding/json"
-	"errors"
 	"fmt"
-	"nixcn-cms/internal/cryptography"
-	"nixcn-cms/internal/kyc"
 	"unicode/utf8"
 
 	alicloudauth20190307 "github.com/alibabacloud-go/cloudauth-20190307/v4/client"
@@ -19,61 +14,17 @@ import (
 	"github.com/spf13/viper"
 )
 
-func DecodeB64Json(b64Json string) (*kyc.KycInfo, error) {
-	rawJson, err := base64.StdEncoding.DecodeString(b64Json)
-	if err != nil {
-		return nil, errors.New("[KYC] invalid base64 json")
-	}
-
-	var kycInfo kyc.KycInfo
-	if err := json.Unmarshal(rawJson, &kycInfo); err != nil {
-		return nil, errors.New("[KYC] invalid json structure")
-	}
-
-	return &kycInfo, nil
-}
-
-func EncodeAES(kyc *kyc.KycInfo) (*string, error) {
-	plainJson, err := json.Marshal(kyc)
-	if err != nil {
-		return nil, err
-	}
-
-	aesKey := viper.GetString("secrets.kyc_info_key")
-	encrypted, err := cryptography.AESCBCEncrypt(plainJson, []byte(aesKey))
-	if err != nil {
-		return nil, err
-	}
-
-	return &encrypted, nil
-}
-
-func DecodeAES(cipherStr string) (*kyc.KycInfo, error) {
-	aesKey := viper.GetString("secrets.kyc_info_key")
-	plainBytes, err := cryptography.AESCBCDecrypt(cipherStr, []byte(aesKey))
-	if err != nil {
-		return nil, err
-	}
-
-	var kycInfo kyc.KycInfo
-	if err := json.Unmarshal(plainBytes, &kycInfo); err != nil {
-		return nil, errors.New("[KYC] invalid decrypted json")
-	}
-
-	return &kycInfo, nil
-}
-
-func MD5AliEnc(kyc *kyc.KycInfo) (*KycAli, error) {
+func CNRidMD5AliEnc(kyc *KycInfo) (*AliCloudAuth, error) {
 	if kyc.Type != "Chinese" {
 		return nil, nil
 	}
 
 	// MD5 Legal Name rule: First Chinese char md5enc, remaining plain, at least 2 Chinese chars
-	if len(kyc.LegalName) < 2 || utf8.RuneCountInString(kyc.LegalName) < 2 {
+	if len(kyc.CNRidInfo.LegalName) < 2 || utf8.RuneCountInString(kyc.CNRidInfo.LegalName) < 2 {
 		return nil, fmt.Errorf("input string must have at least 2 Chinese characters")
 	}
 
-	lnFirstRune, size := utf8.DecodeRuneInString(kyc.LegalName)
+	lnFirstRune, size := utf8.DecodeRuneInString(kyc.CNRidInfo.LegalName)
 	if lnFirstRune == utf8.RuneError {
 		return nil, fmt.Errorf("invalid first character")
 	}
@@ -82,18 +33,18 @@ func MD5AliEnc(kyc *kyc.KycInfo) (*KycAli, error) {
 	lnHash.Write([]byte(string(lnFirstRune)))
 	lnFirstHash := hex.EncodeToString(lnHash.Sum(nil))
 
-	lnRemaining := kyc.LegalName[size:]
+	lnRemaining := kyc.CNRidInfo.LegalName[size:]
 
 	ln := lnFirstHash + lnRemaining
 
 	// MD5 Resident Id rule: First 6 char plain, middle birthdate md5enc, last 4 char plain, at least 18 chars
-	if len(kyc.ResidentId) < 18 {
+	if len(kyc.CNRidInfo.ResidentId) < 18 {
 		return nil, fmt.Errorf("input string must have at least 18 characters")
 	}
 
-	ridPrefix := kyc.ResidentId[:6]
-	ridSuffix := kyc.ResidentId[len(kyc.ResidentId)-4:]
-	ridMiddle := kyc.ResidentId[6 : len(kyc.ResidentId)-4]
+	ridPrefix := kyc.CNRidInfo.ResidentId[:6]
+	ridSuffix := kyc.CNRidInfo.ResidentId[len(kyc.CNRidInfo.ResidentId)-4:]
+	ridMiddle := kyc.CNRidInfo.ResidentId[6 : len(kyc.CNRidInfo.ResidentId)-4]
 
 	ridHash := md5.New()
 	ridHash.Write([]byte(ridMiddle))
@@ -102,7 +53,7 @@ func MD5AliEnc(kyc *kyc.KycInfo) (*KycAli, error) {
 	rid := ridPrefix + ridMiddleHash + ridSuffix
 
 	// Aliyun Id2MetaVerify API Params
-	var kycAli KycAli
+	var kycAli AliCloudAuth
 	kycAli.ParamType = "md5"
 	kycAli.UserName = ln
 	kycAli.IdentifyNum = rid
@@ -110,7 +61,7 @@ func MD5AliEnc(kyc *kyc.KycInfo) (*KycAli, error) {
 	return &kycAli, nil
 }
 
-func AliId2MetaVerify(kycAli *KycAli) (*string, error) {
+func AliId2MetaVerify(kycAli *AliCloudAuth) (*string, error) {
 	// Create aliyun openapi credential
 	credentialConfig := new(alicredential.Config).
 		SetType("access_key").

internal/kyc/crypto.go

@@ -0,0 +1,39 @@
+package kyc
+
+import (
+	"encoding/json"
+	"errors"
+	"nixcn-cms/internal/cryptography"
+
+	"github.com/spf13/viper"
+)
+
+func EncodeAES(kyc *KycInfo) (*string, error) {
+	plainJson, err := json.Marshal(kyc)
+	if err != nil {
+		return nil, err
+	}
+
+	aesKey := viper.GetString("secrets.kyc_info_key")
+	encrypted, err := cryptography.AESCBCEncrypt(plainJson, []byte(aesKey))
+	if err != nil {
+		return nil, err
+	}
+
+	return &encrypted, nil
+}
+
+func DecodeAES(cipherStr string) (*KycInfo, error) {
+	aesKey := viper.GetString("secrets.kyc_info_key")
+	plainBytes, err := cryptography.AESCBCDecrypt(cipherStr, []byte(aesKey))
+	if err != nil {
+		return nil, err
+	}
+
+	var kycInfo KycInfo
+	if err := json.Unmarshal(plainBytes, &kycInfo); err != nil {
+		return nil, errors.New("[KYC] invalid decrypted json")
+	}
+
+	return &kycInfo, nil
+}

internal/kyc/passport.go

@@ -0,0 +1,88 @@
+package kyc
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+
+	"github.com/spf13/viper"
+)
+
+func CreateSession() (*PassportReaderSessionResponse, error) {
+	publicKey := viper.GetString("kyc.passport_reader_public_key")
+	secret := viper.GetString("kyc.passport_reader_secret")
+
+	apiURL := "https://passportreader.app/api/v1/session.create"
+
+	client := &http.Client{
+		Timeout: 10 * time.Second,
+	}
+
+	req, err := http.NewRequest("POST", apiURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	req.SetBasicAuth(publicKey, secret)
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(resp.Body)
+		return nil, fmt.Errorf("api returned error: %d, body: %s", resp.StatusCode, string(body))
+	}
+
+	var sessionResp PassportReaderSessionResponse
+	if err := json.NewDecoder(resp.Body).Decode(&sessionResp); err != nil {
+		return nil, fmt.Errorf("failed to decode response: %w", err)
+	}
+
+	return &sessionResp, nil
+}
+
+func GetSessionDetails(sessionID int) (*PassportReaderSessionDetailResponse, error) {
+	publicKey := viper.GetString("kyc.passport_reader_public_key")
+	secret := viper.GetString("kyc.passport_reader_secret")
+
+	apiURL := "https://passportreader.app/api/v1/session.get"
+
+	reqPayload := PassportReaderGetSessionRequest{ID: sessionID}
+	jsonData, err := json.Marshal(reqPayload)
+	if err != nil {
+		return nil, fmt.Errorf("failed to marshal request: %w", err)
+	}
+
+	req, err := http.NewRequest("POST", apiURL, bytes.NewBuffer(jsonData))
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	req.SetBasicAuth(publicKey, secret)
+	req.Header.Set("Content-Type", "application/json")
+
+	client := &http.Client{Timeout: 15 * time.Second}
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(resp.Body)
+		return nil, fmt.Errorf("api error: %d, response: %s", resp.StatusCode, string(body))
+	}
+
+	var detailResp PassportReaderSessionDetailResponse
+	if err := json.NewDecoder(resp.Body).Decode(&detailResp); err != nil {
+		return nil, fmt.Errorf("failed to decode response: %w", err)
+	}
+
+	return &detailResp, nil
+}

internal/kyc/types.go

@@ -1,17 +1,48 @@
 package kyc
 
 type KycInfo struct {
-	Type         string       `json:"type"` // cnrid/passport
-	LegalName    string       `json:"legal_name"`
-	ResidentId   string       `json:"rsident_id"`
-	PassportInfo PassportInfo `json:"passport_info"`
+	Type         string        `json:"type"` // cnrid/passport
+	CNRidInfo    *CNRidInfo    `json:"CNRodInfo"`
+	PassportInfo *PassportInfo `json:"passport_info"`
+}
+
+type CNRidInfo struct {
+	LegalName  string `json:"legal_name"`
+	ResidentId string `json:"resident_id"`
 }
 
 type PassportInfo struct {
-	FirstName      string `json:"first_name"`
-	LastName       string `json:"last_name"`
-	DateOfExpire   string `json:"date_of_expire"`
+	GivenNames     string `json:"given_names"`
+	Surname        string `json:"surname"`
 	Nationality    string `json:"nationality"`
+	DateOfBirth    string `json:"date_of_birth"`
 	DocumentType   string `json:"document_type"`
 	DocumentNumber string `json:"document_number"`
+	ExpiryDate     string `json:"expiry_date"`
+}
+
+type AliCloudAuth struct {
+	ParamType   string `json:"param_type"`
+	IdentifyNum string `json:"identify_num"`
+	UserName    string `json:"user_name"`
+}
+
+type PassportReaderSessionResponse struct {
+	ID    int    `json:"id"`
+	Token string `json:"token"`
+}
+
+type PassportReaderGetSessionRequest struct {
+	ID int `json:"id"`
+}
+
+type PassportReaderSessionDetailResponse struct {
+	State          string `json:"state"`
+	GivenNames     string `json:"given_names"`
+	Surname        string `json:"surname"`
+	Nationality    string `json:"nationality"`
+	DateOfBirth    string `json:"date_of_birth"`
+	DocumentType   string `json:"document_type"`
+	DocumentNumber string `json:"document_number"`
+	ExpiryDate     string `json:"expiry_date"`
 }

internal/sc_realid/types.go

@@ -1,13 +0,0 @@
-package screalid
-
-type KycPassportResponse struct {
-	Status      string `json:"status"`
-	FinalResult struct {
-		FirstName      string `json:"firstName"`
-		LastName       string `json:"lastName"`
-		DateOfExpire   string `json:"dateOfExpire"`
-		Nationality    string `json:"nationality"`
-		DocumentType   string `json:"documentType"`
-		DocumentNumber string `json:"documentNumber"`
-	} `json:"finalResult"`
-}