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moneygo/libofx.go

315 lines
9.2 KiB
Go

package main
//#cgo LDFLAGS: -lofx
//
//#include <stdlib.h>
//
// //The next line disables the definition of static variables to allow for it to
// //be included here (see libofx commit bd24df15531e52a2858f70487443af8b9fa407f4)
//#define OFX_AQUAMANIAC_UGLY_HACK1
//#include <libofx/libofx.h>
//
// typedef int (*ofx_statement_cb_fn) (const struct OfxStatementData, void *);
// extern int ofx_statement_callback(const struct OfxStatementData, void *);
// typedef int (*ofx_account_cb_fn) (const struct OfxAccountData, void *);
// extern int ofx_account_callback(const struct OfxAccountData, void *);
// typedef int (*ofx_transaction_cb_fn) (const struct OfxTransactionData, void *);
// extern int ofx_transaction_callback(const struct OfxTransactionData, void *);
import "C"
import (
"errors"
"math/big"
"time"
"unsafe"
)
type ImportObject struct {
TransactionList OFXImport
Error error
}
type OFXImport struct {
Account *Account
Transactions *[]Transaction
TotalTransactions int64
BeginningBalance string
EndingBalance string
}
func init() {
// Turn off all libofx info/debug messages
C.ofx_PARSER_msg = 0
C.ofx_DEBUG_msg = 0
C.ofx_DEBUG1_msg = 0
C.ofx_DEBUG2_msg = 0
C.ofx_DEBUG3_msg = 0
C.ofx_DEBUG4_msg = 0
C.ofx_DEBUG5_msg = 0
C.ofx_STATUS_msg = 0
C.ofx_INFO_msg = 0
C.ofx_WARNING_msg = 0
C.ofx_ERROR_msg = 0
}
//export OFXStatementCallback
func OFXStatementCallback(statement_data C.struct_OfxStatementData, data unsafe.Pointer) C.int {
// import := (*ImportObject)(data)
return 0
}
//export OFXAccountCallback
func OFXAccountCallback(account_data C.struct_OfxAccountData, data unsafe.Pointer) C.int {
iobj := (*ImportObject)(data)
itl := iobj.TransactionList
if account_data.account_id_valid != 0 {
account_name := C.GoString(&account_data.account_name[0])
account_id := C.GoString(&account_data.account_id[0])
itl.Account.Name = account_name
itl.Account.ExternalAccountId = account_id
} else {
if iobj.Error == nil {
iobj.Error = errors.New("OFX account ID invalid")
}
return 1
}
if account_data.account_type_valid != 0 {
switch account_data.account_type {
case C.OFX_CHECKING, C.OFX_SAVINGS, C.OFX_MONEYMRKT, C.OFX_CMA:
itl.Account.Type = Bank
case C.OFX_CREDITLINE, C.OFX_CREDITCARD:
itl.Account.Type = Liability
case C.OFX_INVESTMENT:
itl.Account.Type = Investment
}
} else {
if iobj.Error == nil {
iobj.Error = errors.New("OFX account type invalid")
}
return 1
}
if account_data.currency_valid != 0 {
currency_name := C.GoString(&account_data.currency[0])
currency, err := GetSecurityByName(currency_name)
if err != nil {
if iobj.Error == nil {
iobj.Error = err
}
return 1
}
itl.Account.SecurityId = currency.SecurityId
} else {
if iobj.Error == nil {
iobj.Error = errors.New("OFX account currency invalid")
}
return 1
}
return 0
}
//export OFXTransactionCallback
func OFXTransactionCallback(transaction_data C.struct_OfxTransactionData, data unsafe.Pointer) C.int {
iobj := (*ImportObject)(data)
itl := iobj.TransactionList
transaction := new(Transaction)
if transaction_data.name_valid != 0 {
transaction.Description = C.GoString(&transaction_data.name[0])
}
// if transaction_data.reference_number_valid != 0 {
// fmt.Println("reference_number: ", C.GoString(&transaction_data.reference_number[0]))
// }
if transaction_data.date_posted_valid != 0 {
transaction.Date = time.Unix(int64(transaction_data.date_posted), 0)
} else if transaction_data.date_initiated_valid != 0 {
transaction.Date = time.Unix(int64(transaction_data.date_initiated), 0)
}
if transaction_data.fi_id_valid != 0 {
transaction.RemoteId = C.GoString(&transaction_data.fi_id[0])
}
if transaction_data.amount_valid != 0 {
split := new(Split)
r := new(big.Rat)
r.SetFloat64(float64(transaction_data.amount))
security, err := GetSecurity(itl.Account.SecurityId, itl.Account.UserId)
if err != nil {
if iobj.Error == nil {
iobj.Error = err
}
return 1
}
split.Amount = r.FloatString(security.Precision)
if transaction_data.memo_valid != 0 {
split.Memo = C.GoString(&transaction_data.memo[0])
}
if transaction_data.check_number_valid != 0 {
split.Number = C.GoString(&transaction_data.check_number[0])
}
split.SecurityId = -1
split.AccountId = itl.Account.AccountId
transaction.Splits = append(transaction.Splits, split)
} else {
if iobj.Error == nil {
iobj.Error = errors.New("OFX transaction amount invalid")
}
return 1
}
var security *Security
var err error
split := new(Split)
units := new(big.Rat)
if transaction_data.units_valid != 0 {
units.SetFloat64(float64(transaction_data.units))
if transaction_data.security_data_valid != 0 {
security_data := transaction_data.security_data_ptr
if security_data.ticker_valid != 0 {
s, err := GetSecurityByName(C.GoString(&security_data.ticker[0]))
if err != nil {
if iobj.Error == nil {
iobj.Error = errors.New("Failed to find OFX transaction security: " + C.GoString(&security_data.ticker[0]))
}
return 1
}
security = s
} else {
if iobj.Error == nil {
iobj.Error = errors.New("OFX security ticker invalid")
}
return 1
}
if security.Type == Stock && security_data.unique_id_valid != 0 && security_data.unique_id_type_valid != 0 && C.GoString(&security_data.unique_id_type[0]) == "CUSIP" {
// Validate the security CUSIP, if possible
if security.AlternateId != C.GoString(&security_data.unique_id[0]) {
if iobj.Error == nil {
iobj.Error = errors.New("OFX transaction security CUSIP failed to validate")
}
return 1
}
}
} else {
security, err = GetSecurity(itl.Account.SecurityId, itl.Account.UserId)
if err != nil {
if iobj.Error == nil {
iobj.Error = err
}
return 1
}
}
} else {
// Calculate units from other available fields if its not present
// units = - (amount + various fees) / unitprice
units.SetFloat64(float64(transaction_data.amount))
fees := new(big.Rat)
if transaction_data.fees_valid != 0 {
fees.SetFloat64(float64(-transaction_data.fees))
}
if transaction_data.commission_valid != 0 {
commission := new(big.Rat)
commission.SetFloat64(float64(-transaction_data.commission))
fees.Add(fees, commission)
}
units.Add(units, fees)
units.Neg(units)
if transaction_data.unitprice_valid != 0 && transaction_data.unitprice != 0 {
unitprice := new(big.Rat)
unitprice.SetFloat64(float64(transaction_data.unitprice))
units.Quo(units, unitprice)
}
// If 'units' wasn't present, assume we're using the account's security
security, err = GetSecurity(itl.Account.SecurityId, itl.Account.UserId)
if err != nil {
if iobj.Error == nil {
iobj.Error = err
}
return 1
}
}
split.Amount = units.FloatString(security.Precision)
split.SecurityId = security.SecurityId
split.AccountId = -1
transaction.Splits = append(transaction.Splits, split)
if transaction_data.fees_valid != 0 {
split := new(Split)
r := new(big.Rat)
r.SetFloat64(float64(-transaction_data.fees))
security, err := GetSecurity(itl.Account.SecurityId, itl.Account.UserId)
if err != nil {
if iobj.Error == nil {
iobj.Error = err
}
return 1
}
split.Amount = r.FloatString(security.Precision)
split.Memo = "fees"
split.SecurityId = itl.Account.SecurityId
split.AccountId = -1
transaction.Splits = append(transaction.Splits, split)
}
if transaction_data.commission_valid != 0 {
split := new(Split)
r := new(big.Rat)
r.SetFloat64(float64(-transaction_data.commission))
security, err := GetSecurity(itl.Account.SecurityId, itl.Account.UserId)
if err != nil {
if iobj.Error == nil {
iobj.Error = err
}
return 1
}
split.Amount = r.FloatString(security.Precision)
split.Memo = "commission"
split.SecurityId = itl.Account.SecurityId
split.AccountId = -1
transaction.Splits = append(transaction.Splits, split)
}
// if transaction_data.payee_id_valid != 0 {
// fmt.Println("payee_id: ", C.GoString(&transaction_data.payee_id[0]))
// }
transaction_list := append(*itl.Transactions, *transaction)
iobj.TransactionList.Transactions = &transaction_list
return 0
}
func ImportOFX(filename string, account *Account) (*OFXImport, error) {
var a Account
var t []Transaction
var iobj ImportObject
iobj.TransactionList.Account = &a
iobj.TransactionList.Transactions = &t
a.AccountId = account.AccountId
context := C.libofx_get_new_context()
defer C.libofx_free_context(context)
C.ofx_set_statement_cb(context, C.ofx_statement_cb_fn(C.ofx_statement_callback), unsafe.Pointer(&iobj))
C.ofx_set_account_cb(context, C.ofx_account_cb_fn(C.ofx_account_callback), unsafe.Pointer(&iobj))
C.ofx_set_transaction_cb(context, C.ofx_transaction_cb_fn(C.ofx_transaction_callback), unsafe.Pointer(&iobj))
filename_cstring := C.CString(filename)
defer C.free(unsafe.Pointer(filename_cstring))
C.libofx_proc_file(context, filename_cstring, C.OFX) // unconditionally returns 0.
iobj.TransactionList.TotalTransactions = int64(len(*iobj.TransactionList.Transactions))
if iobj.TransactionList.TotalTransactions == 0 {
return nil, errors.New("No OFX transactions found")
}
if iobj.Error != nil {
return nil, iobj.Error
} else {
return &iobj.TransactionList, nil
}
}