mirror of
https://github.com/aclindsa/moneygo.git
synced 2024-10-30 15:50:04 -04:00
458 lines
13 KiB
Go
458 lines
13 KiB
Go
package handlers
|
|
|
|
import (
|
|
"bufio"
|
|
"compress/gzip"
|
|
"encoding/xml"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"log"
|
|
"math"
|
|
"math/big"
|
|
"net/http"
|
|
"time"
|
|
)
|
|
|
|
type GnucashXMLCommodity struct {
|
|
Name string `xml:"http://www.gnucash.org/XML/cmdty id"`
|
|
Description string `xml:"http://www.gnucash.org/XML/cmdty name"`
|
|
Type string `xml:"http://www.gnucash.org/XML/cmdty space"`
|
|
Fraction int `xml:"http://www.gnucash.org/XML/cmdty fraction"`
|
|
XCode string `xml:"http://www.gnucash.org/XML/cmdty xcode"`
|
|
}
|
|
|
|
type GnucashCommodity struct{ Security }
|
|
|
|
func (gc *GnucashCommodity) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
|
|
var gxc GnucashXMLCommodity
|
|
if err := d.DecodeElement(&gxc, &start); err != nil {
|
|
return err
|
|
}
|
|
|
|
gc.Name = gxc.Name
|
|
gc.Symbol = gxc.Name
|
|
gc.Description = gxc.Description
|
|
gc.AlternateId = gxc.XCode
|
|
|
|
gc.Security.Type = Stock // assumed default
|
|
if gxc.Type == "ISO4217" {
|
|
gc.Security.Type = Currency
|
|
// Get the number from our templates for the AlternateId because
|
|
// Gnucash uses 'id' (our Name) to supply the string ISO4217 code
|
|
template := FindSecurityTemplate(gxc.Name, Currency)
|
|
if template == nil {
|
|
return errors.New("Unable to find security template for Gnucash ISO4217 commodity")
|
|
}
|
|
gc.AlternateId = template.AlternateId
|
|
gc.Precision = template.Precision
|
|
} else {
|
|
if gxc.Fraction > 0 {
|
|
gc.Precision = int(math.Ceil(math.Log10(float64(gxc.Fraction))))
|
|
} else {
|
|
gc.Precision = 0
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
type GnucashTime struct{ time.Time }
|
|
|
|
func (g *GnucashTime) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
|
|
var s string
|
|
if err := d.DecodeElement(&s, &start); err != nil {
|
|
return fmt.Errorf("date should be a string")
|
|
}
|
|
t, err := time.Parse("2006-01-02 15:04:05 -0700", s)
|
|
g.Time = t
|
|
return err
|
|
}
|
|
|
|
type GnucashDate struct {
|
|
Date GnucashTime `xml:"http://www.gnucash.org/XML/ts date"`
|
|
}
|
|
|
|
type GnucashPrice struct {
|
|
Id string `xml:"http://www.gnucash.org/XML/price id"`
|
|
Commodity GnucashCommodity `xml:"http://www.gnucash.org/XML/price commodity"`
|
|
Currency GnucashCommodity `xml:"http://www.gnucash.org/XML/price currency"`
|
|
Date GnucashDate `xml:"http://www.gnucash.org/XML/price time"`
|
|
Source string `xml:"http://www.gnucash.org/XML/price source"`
|
|
Type string `xml:"http://www.gnucash.org/XML/price type"`
|
|
Value string `xml:"http://www.gnucash.org/XML/price value"`
|
|
}
|
|
|
|
type GnucashPriceDB struct {
|
|
Prices []GnucashPrice `xml:"price"`
|
|
}
|
|
|
|
type GnucashAccount struct {
|
|
Version string `xml:"version,attr"`
|
|
accountid int64 // Used to map Gnucash guid's to integer ones
|
|
AccountId string `xml:"http://www.gnucash.org/XML/act id"`
|
|
ParentAccountId string `xml:"http://www.gnucash.org/XML/act parent"`
|
|
Name string `xml:"http://www.gnucash.org/XML/act name"`
|
|
Description string `xml:"http://www.gnucash.org/XML/act description"`
|
|
Type string `xml:"http://www.gnucash.org/XML/act type"`
|
|
Commodity GnucashXMLCommodity `xml:"http://www.gnucash.org/XML/act commodity"`
|
|
}
|
|
|
|
type GnucashTransaction struct {
|
|
TransactionId string `xml:"http://www.gnucash.org/XML/trn id"`
|
|
Description string `xml:"http://www.gnucash.org/XML/trn description"`
|
|
Number string `xml:"http://www.gnucash.org/XML/trn num"`
|
|
DatePosted GnucashDate `xml:"http://www.gnucash.org/XML/trn date-posted"`
|
|
DateEntered GnucashDate `xml:"http://www.gnucash.org/XML/trn date-entered"`
|
|
Commodity GnucashXMLCommodity `xml:"http://www.gnucash.org/XML/trn currency"`
|
|
Splits []GnucashSplit `xml:"http://www.gnucash.org/XML/trn splits>split"`
|
|
}
|
|
|
|
type GnucashSplit struct {
|
|
SplitId string `xml:"http://www.gnucash.org/XML/split id"`
|
|
Status string `xml:"http://www.gnucash.org/XML/split reconciled-state"`
|
|
AccountId string `xml:"http://www.gnucash.org/XML/split account"`
|
|
Memo string `xml:"http://www.gnucash.org/XML/split memo"`
|
|
Amount string `xml:"http://www.gnucash.org/XML/split quantity"`
|
|
Value string `xml:"http://www.gnucash.org/XML/split value"`
|
|
}
|
|
|
|
type GnucashXMLImport struct {
|
|
XMLName xml.Name `xml:"gnc-v2"`
|
|
Commodities []GnucashCommodity `xml:"http://www.gnucash.org/XML/gnc book>commodity"`
|
|
PriceDB GnucashPriceDB `xml:"http://www.gnucash.org/XML/gnc book>pricedb"`
|
|
Accounts []GnucashAccount `xml:"http://www.gnucash.org/XML/gnc book>account"`
|
|
Transactions []GnucashTransaction `xml:"http://www.gnucash.org/XML/gnc book>transaction"`
|
|
}
|
|
|
|
type GnucashImport struct {
|
|
Securities []Security
|
|
Accounts []Account
|
|
Transactions []Transaction
|
|
Prices []Price
|
|
}
|
|
|
|
func ImportGnucash(r io.Reader) (*GnucashImport, error) {
|
|
var gncxml GnucashXMLImport
|
|
var gncimport GnucashImport
|
|
|
|
// Perform initial parsing of xml into structs
|
|
decoder := xml.NewDecoder(r)
|
|
err := decoder.Decode(&gncxml)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Fixup securities, making a map of them as we go
|
|
securityMap := make(map[string]Security)
|
|
for i := range gncxml.Commodities {
|
|
s := gncxml.Commodities[i].Security
|
|
s.SecurityId = int64(i + 1)
|
|
securityMap[s.Name] = s
|
|
|
|
// Ignore gnucash's "template" commodity
|
|
if s.Name != "template" ||
|
|
s.Description != "template" ||
|
|
s.AlternateId != "template" {
|
|
gncimport.Securities = append(gncimport.Securities, s)
|
|
}
|
|
}
|
|
|
|
// Create prices, setting security and currency IDs from securityMap
|
|
for i := range gncxml.PriceDB.Prices {
|
|
price := gncxml.PriceDB.Prices[i]
|
|
var p Price
|
|
security, ok := securityMap[price.Commodity.Name]
|
|
if !ok {
|
|
return nil, fmt.Errorf("Unable to find commodity '%s' for price '%s'", price.Commodity.Name, price.Id)
|
|
}
|
|
currency, ok := securityMap[price.Currency.Name]
|
|
if !ok {
|
|
return nil, fmt.Errorf("Unable to find currency '%s' for price '%s'", price.Currency.Name, price.Id)
|
|
}
|
|
if currency.Type != Currency {
|
|
return nil, fmt.Errorf("Currency for imported price isn't actually a currency\n")
|
|
}
|
|
p.PriceId = int64(i + 1)
|
|
p.SecurityId = security.SecurityId
|
|
p.CurrencyId = currency.SecurityId
|
|
p.Date = price.Date.Date.Time
|
|
|
|
var r big.Rat
|
|
_, ok = r.SetString(price.Value)
|
|
if ok {
|
|
p.Value = r.FloatString(currency.Precision)
|
|
} else {
|
|
return nil, fmt.Errorf("Can't set price value: %s", price.Value)
|
|
}
|
|
|
|
p.RemoteId = "gnucash:" + price.Id
|
|
gncimport.Prices = append(gncimport.Prices, p)
|
|
}
|
|
|
|
//find root account, while simultaneously creating map of GUID's to
|
|
//accounts
|
|
var rootAccount GnucashAccount
|
|
accountMap := make(map[string]GnucashAccount)
|
|
for i := range gncxml.Accounts {
|
|
gncxml.Accounts[i].accountid = int64(i + 1)
|
|
if gncxml.Accounts[i].Type == "ROOT" {
|
|
rootAccount = gncxml.Accounts[i]
|
|
} else {
|
|
accountMap[gncxml.Accounts[i].AccountId] = gncxml.Accounts[i]
|
|
}
|
|
}
|
|
|
|
//Translate to our account format, figuring out parent relationships
|
|
for guid := range accountMap {
|
|
ga := accountMap[guid]
|
|
var a Account
|
|
|
|
a.AccountId = ga.accountid
|
|
if ga.ParentAccountId == rootAccount.AccountId {
|
|
a.ParentAccountId = -1
|
|
} else {
|
|
parent, ok := accountMap[ga.ParentAccountId]
|
|
if ok {
|
|
a.ParentAccountId = parent.accountid
|
|
} else {
|
|
a.ParentAccountId = -1 // Ugly, but assign to top-level if we can't find its parent
|
|
}
|
|
}
|
|
a.Name = ga.Name
|
|
if security, ok := securityMap[ga.Commodity.Name]; ok {
|
|
a.SecurityId = security.SecurityId
|
|
} else {
|
|
return nil, fmt.Errorf("Unable to find security: %s", ga.Commodity.Name)
|
|
}
|
|
|
|
//TODO find account types
|
|
switch ga.Type {
|
|
default:
|
|
a.Type = Bank
|
|
case "ASSET":
|
|
a.Type = Asset
|
|
case "BANK":
|
|
a.Type = Bank
|
|
case "CASH":
|
|
a.Type = Cash
|
|
case "CREDIT", "LIABILITY":
|
|
a.Type = Liability
|
|
case "EQUITY":
|
|
a.Type = Equity
|
|
case "EXPENSE":
|
|
a.Type = Expense
|
|
case "INCOME":
|
|
a.Type = Income
|
|
case "PAYABLE":
|
|
a.Type = Payable
|
|
case "RECEIVABLE":
|
|
a.Type = Receivable
|
|
case "MUTUAL", "STOCK":
|
|
a.Type = Investment
|
|
case "TRADING":
|
|
a.Type = Trading
|
|
}
|
|
|
|
gncimport.Accounts = append(gncimport.Accounts, a)
|
|
}
|
|
|
|
//Translate transactions to our format
|
|
for i := range gncxml.Transactions {
|
|
gt := gncxml.Transactions[i]
|
|
|
|
t := new(Transaction)
|
|
t.Description = gt.Description
|
|
t.Date = gt.DatePosted.Date.Time
|
|
for j := range gt.Splits {
|
|
gs := gt.Splits[j]
|
|
s := new(Split)
|
|
|
|
switch gs.Status {
|
|
default: // 'n', or not present
|
|
s.Status = Imported
|
|
case "c":
|
|
s.Status = Cleared
|
|
case "y":
|
|
s.Status = Reconciled
|
|
}
|
|
|
|
account, ok := accountMap[gs.AccountId]
|
|
if !ok {
|
|
return nil, fmt.Errorf("Unable to find account: %s", gs.AccountId)
|
|
}
|
|
s.AccountId = account.accountid
|
|
|
|
security, ok := securityMap[account.Commodity.Name]
|
|
if !ok {
|
|
return nil, fmt.Errorf("Unable to find security: %s", account.Commodity.Name)
|
|
}
|
|
s.SecurityId = -1
|
|
|
|
s.RemoteId = "gnucash:" + gs.SplitId
|
|
s.Number = gt.Number
|
|
s.Memo = gs.Memo
|
|
|
|
var r big.Rat
|
|
_, ok = r.SetString(gs.Amount)
|
|
if ok {
|
|
s.Amount = r.FloatString(security.Precision)
|
|
} else {
|
|
return nil, fmt.Errorf("Can't set split Amount: %s", gs.Amount)
|
|
}
|
|
|
|
t.Splits = append(t.Splits, s)
|
|
}
|
|
gncimport.Transactions = append(gncimport.Transactions, *t)
|
|
}
|
|
|
|
return &gncimport, nil
|
|
}
|
|
|
|
func GnucashImportHandler(r *http.Request, tx *Tx) ResponseWriterWriter {
|
|
user, err := GetUserFromSession(tx, r)
|
|
if err != nil {
|
|
return NewError(1 /*Not Signed In*/)
|
|
}
|
|
|
|
if r.Method != "POST" {
|
|
return NewError(3 /*Invalid Request*/)
|
|
}
|
|
|
|
multipartReader, err := r.MultipartReader()
|
|
if err != nil {
|
|
return NewError(3 /*Invalid Request*/)
|
|
}
|
|
|
|
// Assume there is only one 'part' and it's the one we care about
|
|
part, err := multipartReader.NextPart()
|
|
if err != nil {
|
|
if err == io.EOF {
|
|
return NewError(3 /*Invalid Request*/)
|
|
} else {
|
|
log.Print(err)
|
|
return NewError(999 /*Internal Error*/)
|
|
}
|
|
}
|
|
|
|
bufread := bufio.NewReader(part)
|
|
gzHeader, err := bufread.Peek(2)
|
|
if err != nil {
|
|
log.Print(err)
|
|
return NewError(999 /*Internal Error*/)
|
|
}
|
|
|
|
// Does this look like a gzipped file?
|
|
var gnucashImport *GnucashImport
|
|
if gzHeader[0] == 0x1f && gzHeader[1] == 0x8b {
|
|
gzr, err := gzip.NewReader(bufread)
|
|
if err != nil {
|
|
log.Print(err)
|
|
return NewError(999 /*Internal Error*/)
|
|
}
|
|
gnucashImport, err = ImportGnucash(gzr)
|
|
} else {
|
|
gnucashImport, err = ImportGnucash(bufread)
|
|
}
|
|
|
|
if err != nil {
|
|
return NewError(3 /*Invalid Request*/)
|
|
}
|
|
|
|
// Import securities, building map from Gnucash security IDs to our
|
|
// internal IDs
|
|
securityMap := make(map[int64]int64)
|
|
for _, security := range gnucashImport.Securities {
|
|
securityId := security.SecurityId // save off because it could be updated
|
|
s, err := ImportGetCreateSecurity(tx, user.UserId, &security)
|
|
if err != nil {
|
|
log.Print(err)
|
|
log.Print(security)
|
|
return NewError(6 /*Import Error*/)
|
|
}
|
|
securityMap[securityId] = s.SecurityId
|
|
}
|
|
|
|
// Import prices, setting security and currency IDs from securityMap
|
|
for _, price := range gnucashImport.Prices {
|
|
price.SecurityId = securityMap[price.SecurityId]
|
|
price.CurrencyId = securityMap[price.CurrencyId]
|
|
price.PriceId = 0
|
|
|
|
err := CreatePriceIfNotExist(tx, &price)
|
|
if err != nil {
|
|
log.Print(err)
|
|
return NewError(6 /*Import Error*/)
|
|
}
|
|
}
|
|
|
|
// Get/create accounts in the database, building a map from Gnucash account
|
|
// IDs to our internal IDs as we go
|
|
accountMap := make(map[int64]int64)
|
|
accountsRemaining := len(gnucashImport.Accounts)
|
|
accountsRemainingLast := accountsRemaining
|
|
for accountsRemaining > 0 {
|
|
for _, account := range gnucashImport.Accounts {
|
|
|
|
// If the account has already been added to the map, skip it
|
|
_, ok := accountMap[account.AccountId]
|
|
if ok {
|
|
continue
|
|
}
|
|
|
|
// If it hasn't been added, but its parent has, add it to the map
|
|
_, ok = accountMap[account.ParentAccountId]
|
|
if ok || account.ParentAccountId == -1 {
|
|
account.UserId = user.UserId
|
|
if account.ParentAccountId != -1 {
|
|
account.ParentAccountId = accountMap[account.ParentAccountId]
|
|
}
|
|
account.SecurityId = securityMap[account.SecurityId]
|
|
a, err := GetCreateAccountTx(tx, account)
|
|
if err != nil {
|
|
log.Print(err)
|
|
return NewError(999 /*Internal Error*/)
|
|
}
|
|
accountMap[account.AccountId] = a.AccountId
|
|
accountsRemaining--
|
|
}
|
|
}
|
|
if accountsRemaining == accountsRemainingLast {
|
|
//We didn't make any progress in importing the next level of accounts, so there must be a circular parent-child relationship, so give up and tell the user they're wrong
|
|
log.Print(fmt.Errorf("Circular account parent-child relationship when importing %s", part.FileName()))
|
|
return NewError(999 /*Internal Error*/)
|
|
}
|
|
accountsRemainingLast = accountsRemaining
|
|
}
|
|
|
|
// Insert transactions, fixing up account IDs to match internal ones from
|
|
// above
|
|
for _, transaction := range gnucashImport.Transactions {
|
|
var already_imported bool
|
|
for _, split := range transaction.Splits {
|
|
acctId, ok := accountMap[split.AccountId]
|
|
if !ok {
|
|
log.Print(fmt.Errorf("Error: Split's AccountID Doesn't exist: %d\n", split.AccountId))
|
|
return NewError(999 /*Internal Error*/)
|
|
}
|
|
split.AccountId = acctId
|
|
|
|
exists, err := split.AlreadyImportedTx(tx)
|
|
if err != nil {
|
|
log.Print("Error checking if split was already imported:", err)
|
|
return NewError(999 /*Internal Error*/)
|
|
} else if exists {
|
|
already_imported = true
|
|
}
|
|
}
|
|
if !already_imported {
|
|
err := InsertTransactionTx(tx, &transaction, user)
|
|
if err != nil {
|
|
log.Print(err)
|
|
return NewError(999 /*Internal Error*/)
|
|
}
|
|
}
|
|
}
|
|
|
|
return SuccessWriter{}
|
|
}
|