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Validate aliases, addresses and phone numbers in the send menu (#176)

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- Update the phone number regex
- Check whether the recipient is a valid phone number, alias or address

Reviewed-on: urdt/ussd#176
Co-authored-by: alfred-mk <alfredmwaik@gmail.com>
Co-committed-by: alfred-mk <alfredmwaik@gmail.com>
This commit is contained in:
Alfred Kamanda 2024-11-26 07:24:57 +01:00 committed by Mohamed Sohail
parent 0f4a7e900f
commit 08ff1056d7
9 changed files with 186 additions and 41 deletions
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9
cmd/africastalking/main.go
View File

@ -20,6 +20,7 @@ import (
"git.defalsify.org/vise.git/logging"
"git.defalsify.org/vise.git/resource"
"git.grassecon.net/urdt/ussd/common"
"git.grassecon.net/urdt/ussd/config"
"git.grassecon.net/urdt/ussd/initializers"
"git.grassecon.net/urdt/ussd/internal/handlers"
@ -76,7 +77,13 @@ func (arp *atRequestParser) GetSessionId(rq any) (string, error) {
return "", fmt.Errorf("no phone number found")
}
return phoneNumber, nil
formattedNumber, err := common.FormatPhoneNumber(phoneNumber)
if err != nil {
fmt.Printf("Error: %v\n", err)
return "", fmt.Errorf("failed to format number")
}
return formattedNumber, nil
}
func (arp *atRequestParser) GetInput(rq any) ([]byte, error) {

73
common/recipient.go Normal file
View File

@ -0,0 +1,73 @@
package common
import (
"errors"
"fmt"
"regexp"
"strings"
)
// Define the regex patterns as constants
const (
phoneRegex = `^(?:\+254|254|0)?((?:7[0-9]{8})|(?:1[01][0-9]{7}))$`
addressRegex = `^0x[a-fA-F0-9]{40}$`
aliasRegex = `^[a-zA-Z0-9]+$`
)
// IsValidPhoneNumber checks if the given number is a valid phone number
func IsValidPhoneNumber(phonenumber string) bool {
match, _ := regexp.MatchString(phoneRegex, phonenumber)
return match
}
// IsValidAddress checks if the given address is a valid Ethereum address
func IsValidAddress(address string) bool {
match, _ := regexp.MatchString(addressRegex, address)
return match
}
// IsValidAlias checks if the alias is a valid alias format
func IsValidAlias(alias string) bool {
match, _ := regexp.MatchString(aliasRegex, alias)
return match
}
// CheckRecipient validates the recipient format based on the criteria
func CheckRecipient(recipient string) (string, error) {
if IsValidPhoneNumber(recipient) {
return "phone number", nil
}
if IsValidAddress(recipient) {
return "address", nil
}
if IsValidAlias(recipient) {
return "alias", nil
}
return "", fmt.Errorf("invalid recipient: must be a phone number, address or alias")
}
// FormatPhoneNumber formats a Kenyan phone number to "+254xxxxxxxx".
func FormatPhoneNumber(phone string) (string, error) {
if !IsValidPhoneNumber(phone) {
return "", errors.New("invalid phone number")
}
// Remove any leading "+" and spaces
phone = strings.TrimPrefix(phone, "+")
phone = strings.ReplaceAll(phone, " ", "")
// Replace leading "0" with "254" if present
if strings.HasPrefix(phone, "0") {
phone = "254" + phone[1:]
}
// Add "+" if not already present
if !strings.HasPrefix(phone, "254") {
return "", errors.New("unexpected format")
}
return "+" + phone, nil
}

3
config/config.go
View File

@ -15,6 +15,7 @@ const (
voucherHoldingsPathPrefix = "/api/v1/holdings"
voucherTransfersPathPrefix = "/api/v1/transfers/last10"
voucherDataPathPrefix = "/api/v1/token"
AliasPrefix = "api/v1/alias"
)
var (
@ -32,6 +33,7 @@ var (
VoucherHoldingsURL string
VoucherTransfersURL string
VoucherDataURL string
CheckAliasURL string
)
func setBase() error {
@ -66,6 +68,7 @@ func LoadConfig() error {
VoucherHoldingsURL, _ = url.JoinPath(dataURLBase, voucherHoldingsPathPrefix)
VoucherTransfersURL, _ = url.JoinPath(dataURLBase, voucherTransfersPathPrefix)
VoucherDataURL, _ = url.JoinPath(dataURLBase, voucherDataPathPrefix)
CheckAliasURL, _ = url.JoinPath(dataURLBase, AliasPrefix)
return nil
}

102
internal/handlers/ussd/menuhandler.go
View File

@ -35,12 +35,17 @@ var (
errResponse *api.ErrResponse
)
// Define the regex patterns as constants
// Define the regex patterns as constants
const (
phoneRegex = `(\(\d{3}\)\s?|\d{3}[-.\s]?)?\d{3}[-.\s]?\d{4}`
pinPattern = `^\d{4}$`
)
// isValidPIN checks whether the given input is a 4 digit number
func isValidPIN(pin string) bool {
match, _ := regexp.MatchString(pinPattern, pin)
return match
}
// FlagManager handles centralized flag management
type FlagManager struct {
parser *asm.FlagParser
@ -95,17 +100,6 @@ func NewHandlers(appFlags *asm.FlagParser, userdataStore db.Db, adminstore *util
return h, nil
}
// isValidPIN checks whether the given input is a 4 digit number
func isValidPIN(pin string) bool {
match, _ := regexp.MatchString(pinPattern, pin)
return match
}
func isValidPhoneNumber(phonenumber string) bool {
match, _ := regexp.MatchString(phoneRegex, phonenumber)
return match
}
func (h *Handlers) WithPersister(pe *persist.Persister) *Handlers {
if h.pe != nil {
panic("persister already set")
@ -877,7 +871,7 @@ func (h *Handlers) ValidateBlockedNumber(ctx context.Context, sym string, input
}
blockedNumber := string(input)
_, err = store.ReadEntry(ctx, blockedNumber, common.DATA_PUBLIC_KEY)
if !isValidPhoneNumber(blockedNumber) {
if !common.IsValidPhoneNumber(blockedNumber) {
res.FlagSet = append(res.FlagSet, flag_unregistered_number)
return res, nil
}
@ -898,10 +892,9 @@ func (h *Handlers) ValidateBlockedNumber(ctx context.Context, sym string, input
return res, nil
}
// ValidateRecipient validates that the given input is a valid phone number.
// ValidateRecipient validates that the given input is valid.
func (h *Handlers) ValidateRecipient(ctx context.Context, sym string, input []byte) (resource.Result, error) {
var res resource.Result
var err error
store := h.userdataStore
sessionId, ok := ctx.Value("SessionId").(string)
@ -909,13 +902,16 @@ func (h *Handlers) ValidateRecipient(ctx context.Context, sym string, input []by
return res, fmt.Errorf("missing session")
}
recipient := string(input)
flag_invalid_recipient, _ := h.flagManager.GetFlag("flag_invalid_recipient")
flag_invalid_recipient_with_invite, _ := h.flagManager.GetFlag("flag_invalid_recipient_with_invite")
flag_api_error, _ := h.flagManager.GetFlag("flag_api_call_error")
recipient := string(input)
if recipient != "0" {
if !isValidPhoneNumber(recipient) {
recipientType, err := common.CheckRecipient(recipient)
if err != nil {
// Invalid recipient format (not a phone number, address, or valid alias format)
res.FlagSet = append(res.FlagSet, flag_invalid_recipient)
res.Content = recipient
@ -929,25 +925,61 @@ func (h *Handlers) ValidateRecipient(ctx context.Context, sym string, input []by
return res, err
}
publicKey, err := store.ReadEntry(ctx, recipient, common.DATA_PUBLIC_KEY)
if err != nil {
if db.IsNotFound(err) {
logg.InfoCtxf(ctx, "Unregistered number")
res.FlagSet = append(res.FlagSet, flag_invalid_recipient_with_invite)
res.Content = recipient
return res, nil
switch recipientType {
case "phone number":
// format the phone number
formattedNumber, err := common.FormatPhoneNumber(recipient)
if err != nil {
logg.ErrorCtxf(ctx, "Failed to format the phone number: %s", recipient, "error", err)
return res, err
}
logg.ErrorCtxf(ctx, "failed to read publicKey entry with", "key", common.DATA_PUBLIC_KEY, "error", err)
return res, err
}
// Check if the phone number is registered
publicKey, err := store.ReadEntry(ctx, formattedNumber, common.DATA_PUBLIC_KEY)
if err != nil {
if db.IsNotFound(err) {
logg.InfoCtxf(ctx, "Unregistered phone number: %s", recipient)
res.FlagSet = append(res.FlagSet, flag_invalid_recipient_with_invite)
res.Content = recipient
return res, nil
}
err = store.WriteEntry(ctx, sessionId, common.DATA_RECIPIENT, publicKey)
if err != nil {
logg.ErrorCtxf(ctx, "failed to write recipient entry with", "key", common.DATA_RECIPIENT, "value", string(publicKey), "error", err)
return res, nil
logg.ErrorCtxf(ctx, "failed to read publicKey entry with", "key", common.DATA_PUBLIC_KEY, "error", err)
return res, err
}
// Save the publicKey as the recipient
err = store.WriteEntry(ctx, sessionId, common.DATA_RECIPIENT, publicKey)
if err != nil {
logg.ErrorCtxf(ctx, "failed to write recipient entry with", "key", common.DATA_RECIPIENT, "value", string(publicKey), "error", err)
return res, err
}
case "address":
// Save the valid Ethereum address as the recipient
err = store.WriteEntry(ctx, sessionId, common.DATA_RECIPIENT, []byte(recipient))
if err != nil {
logg.ErrorCtxf(ctx, "failed to write recipient entry with", "key", common.DATA_RECIPIENT, "value", recipient, "error", err)
return res, err
}
case "alias":
// Call the API to validate and retrieve the address for the alias
r, aliasErr := h.accountService.CheckAliasAddress(ctx, recipient)
if aliasErr != nil {
res.FlagSet = append(res.FlagSet, flag_api_error)
res.Content = recipient
logg.ErrorCtxf(ctx, "failed on CheckAliasAddress", "error", aliasErr)
return res, err
}
// Alias validation succeeded, save the Ethereum address
err = store.WriteEntry(ctx, sessionId, common.DATA_RECIPIENT, []byte(r.Address))
if err != nil {
logg.ErrorCtxf(ctx, "failed to write recipient entry with", "key", common.DATA_RECIPIENT, "value", r.Address, "error", err)
return res, err
}
}
}

5
internal/testutil/mocks/servicemock.go
View File

@ -47,3 +47,8 @@ func (m *MockAccountService) TokenTransfer(ctx context.Context, amount, from, to
args := m.Called()
return args.Get(0).(*models.TokenTransferResponse), args.Error(1)
}
func (m *MockAccountService) CheckAliasAddress(ctx context.Context, alias string) (*dataserviceapi.AliasAddress, error) {
args := m.Called()
return args.Get(0).(*dataserviceapi.AliasAddress), args.Error(1)
}

8
internal/testutil/testservice/TestAccountService.go
View File

@ -33,8 +33,8 @@ func (tas *TestAccountService) TrackAccountStatus(ctx context.Context, publicKey
}
func (tas *TestAccountService) FetchVouchers(ctx context.Context, publicKey string) ([]dataserviceapi.TokenHoldings, error) {
return []dataserviceapi.TokenHoldings {
dataserviceapi.TokenHoldings {
return []dataserviceapi.TokenHoldings{
dataserviceapi.TokenHoldings{
ContractAddress: "0x6CC75A06ac72eB4Db2eE22F781F5D100d8ec03ee",
TokenSymbol: "SRF",
TokenDecimals: "6",
@ -56,3 +56,7 @@ func (tas *TestAccountService) TokenTransfer(ctx context.Context, amount, from,
TrackingId: "e034d147-747d-42ea-928d-b5a7cb3426af",
}, nil
}
func (m TestAccountService) CheckAliasAddress(ctx context.Context, alias string) (*dataserviceapi.AliasAddress, error) {
return &dataserviceapi.AliasAddress{}, nil
}

4
menutraversal_test/test_setup.json
View File

@ -61,7 +61,7 @@
},
{
"input": "1",
"expectedContent": "Enter recipient's phone number:\n0:Back"
"expectedContent": "Enter recipient's phone number/address/alias:\n0:Back"
},
{
"input": "000",
@ -69,7 +69,7 @@
},
{
"input": "1",
"expectedContent": "Enter recipient's phone number:\n0:Back"
"expectedContent": "Enter recipient's phone number/address/alias:\n0:Back"
},
{
"input": "0712345678",

21
remote/accountservice.go
View File

@ -24,6 +24,7 @@ type AccountServiceInterface interface {
FetchTransactions(ctx context.Context, publicKey string) ([]dataserviceapi.Last10TxResponse, error)
VoucherData(ctx context.Context, address string) (*models.VoucherDataResult, error)
TokenTransfer(ctx context.Context, amount, from, to, tokenAddress string) (*models.TokenTransferResponse, error)
CheckAliasAddress(ctx context.Context, alias string) (*dataserviceapi.AliasAddress, error)
}
type AccountService struct {
@ -209,6 +210,26 @@ func (as *AccountService) TokenTransfer(ctx context.Context, amount, from, to, t
return &r, nil
}
// CheckAliasAddress retrieves the address of an alias from the API endpoint.
// Parameters:
// - alias: The alias of the user.
func (as *AccountService) CheckAliasAddress(ctx context.Context, alias string) (*dataserviceapi.AliasAddress, error) {
var r dataserviceapi.AliasAddress
ep, err := url.JoinPath(config.CheckAliasURL, alias)
if err != nil {
return nil, err
}
req, err := http.NewRequest("GET", ep, nil)
if err != nil {
return nil, err
}
_, err = doRequest(ctx, req, &r)
return &r, err
}
func doRequest(ctx context.Context, req *http.Request, rcpt any) (*api.OKResponse, error) {
var okResponse api.OKResponse
var errResponse api.ErrResponse

2
services/registration/send
View File

@ -1 +1 @@
Enter recipient's phone number:
Enter recipient's phone number/address/alias: