/
GnuCash.php
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GnuCash.php
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<?php
/**
*
*
* @author Carsten Brandt <mail@cebe.cc>
*/
namespace cebe\gnucash;
use cebe\gnucash\entities\Account;
use cebe\gnucash\entities\Book;
use cebe\gnucash\entities\Slot;
use cebe\gnucash\entities\Transaction;
use cebe\gnucash\entities\TransactionSplit;
use SebastianBergmann\Money\Currency;
use SebastianBergmann\Money\Money;
class GnuCash
{
/**
* @var Book[]
*/
public $books = array();
private $_currencies = array();
private $_file;
public function __construct($xmlFile)
{
$this->_file = $xmlFile;
$cacheFile = dirname($xmlFile) . DIRECTORY_SEPARATOR . '.' . basename($xmlFile) . '.cache';
$sha1 = sha1_file($xmlFile);
if (file_exists($cacheFile) && $data = unserialize(file_get_contents($cacheFile))) {
if ($sha1 === $data['sha1']) {
$this->books = $data['books'];
$this->postProcess();
return;
}
}
$this->books = $this->parseXml($xmlFile);
$data = array(
'sha1' => $sha1,
'books' => $this->books,
);
file_put_contents($cacheFile, serialize($data));
$this->postProcess();
}
/**
* @param string $xmlFile
* @return Book[]
* @throws \Exception
*/
protected function parseXml($xmlFile)
{
$parser = xml_parser_create('');
xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8");
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
if (!xml_parse_into_struct($parser, implode("", gzfile($xmlFile)), $elements)) {
xml_parser_free($parser);
throw new \Exception("failed to parse XML");
}
xml_parser_free($parser);
while($element = array_shift($elements)) {
if ($element['type'] === 'open' && $element['tag'] === 'gnc-v2') {
return $this->parseGNCv2($elements);
} else {
throw new \Exception('Unexpected xml tag: ' . print_r($element, true));
}
}
throw new \Exception('Unexpected end of xml file.');
}
// TODO temporary method to skip some parts of XML currently not needed
protected function skipTag(&$elements, $tag, $level)
{
while ($element = array_shift($elements)) {
if ($element['type'] === 'close' && $element['tag'] == $tag && $element['level'] == $level) {
return;
}
}
throw new \Exception('Unexpected end of xml file.');
}
/**
* @param array $elements list of XML elements to parse.
* @return Book[]
* @throws \Exception
*/
protected function parseGNCv2(&$elements)
{
$books = array();
while($element = array_shift($elements)) {
if ($element['type'] === 'complete' && $element['tag'] === 'gnc:count-data') {
// TODO <gnc:count-data cd:type="book">1</gnc:count-data>
} elseif ($element['type'] === 'open' && $element['tag'] === 'gnc:book') {
if ($element['attributes']['version'] == '2.0.0') {
$book = $this->parseBook($elements);
$books[$book->id] = $book;
} else {
throw new \Exception('Unsupported document version. Only 2.0.0 is supported.');
}
} elseif ($element['type'] === 'close') {
return $books;
} else {
throw new \Exception('Unexpected xml tag: ' . print_r($element, true));
}
}
throw new \Exception('Unexpected end of xml file.');
}
/**
* @param array $elements list of XML elements to parse.
* @return Book
* @throws \Exception
*/
protected function parseBook(&$elements)
{
$book = new Book();
while($element = array_shift($elements)) {
if ($element['type'] === 'complete' && $element['tag'] === 'book:id') {
$book->id = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'gnc:count-data') {
// $book->id = $element['value']; // TODO
} elseif ($element['type'] === 'open' && $element['tag'] === 'book:slots') {
$book->slots = $this->parseSlots($elements);
} elseif ($element['type'] === 'open' && $element['tag'] === 'gnc:commodity') {
$this->skipTag($elements, $element['tag'], $element['level']); // TODO
} elseif ($element['type'] === 'open' && $element['tag'] === 'gnc:GncCustomer') {
$this->skipTag($elements, $element['tag'], $element['level']); // TODO
} elseif ($element['type'] === 'open' && $element['tag'] === 'gnc:GncInvoice') {
$this->skipTag($elements, $element['tag'], $element['level']); // TODO
} elseif ($element['type'] === 'open' && $element['tag'] === 'gnc:GncTaxTable') {
$this->skipTag($elements, $element['tag'], $element['level']); // TODO
} elseif ($element['type'] === 'open' && $element['tag'] === 'gnc:account') {
$account = $this->parseAccount($elements, $book);
$book->accounts[$account->id] = $account;
} elseif ($element['type'] === 'open' && $element['tag'] === 'gnc:transaction') {
$transaction = $this->parseTransaction($elements, $book);
$book->transactions[$transaction->id] = $transaction;
} elseif ($element['type'] === 'close') {
return $book;
} else {
throw new \Exception('Unexpected xml tag: ' . print_r($element, true));
}
}
throw new \Exception('Unexpected end of xml file.');
}
/**
* @param array $elements list of XML elements to parse.
* @return Slot[]
* @throws \Exception
*/
protected function parseSlots(&$elements)
{
$slots = array();
while($element = array_shift($elements)) {
if ($element['type'] === 'open' && $element['tag'] === 'slot') {
$slots[] = $this->parseSlot($elements);
} elseif ($element['type'] === 'close') {
return $slots;
} else {
throw new \Exception('Unexpected xml tag: ' . print_r($element, true));
}
}
throw new \Exception('Unexpected end of xml file.');
}
/**
* @param array $elements list of XML elements to parse.
* @return Slot
* @throws \Exception
*/
protected function parseSlot(&$elements)
{
$slot = new Slot();
while($element = array_shift($elements)) {
if ($element['type'] === 'complete' && $element['tag'] === 'slot:key') {
$slot->key = $element['value'];
} elseif ($element['type'] === 'open' && $element['tag'] === 'slot:value' && $element['attributes']['type'] === 'frame') {
$slot->value = $this->parseSlots($elements);
} elseif ($element['type'] === 'complete' && $element['tag'] === 'slot:value') {
$slot->value = $element['value'];
} elseif ($element['type'] === 'close') {
return $slot;
} else {
throw new \Exception('Unexpected xml tag: ' . print_r($element, true));
}
}
throw new \Exception('Unexpected end of xml file.');
}
/**
* @param array $elements list of XML elements to parse.
* @return Account
* @throws \Exception
*/
protected function parseAccount(&$elements, $book)
{
$account = new Account($book);
while($element = array_shift($elements)) {
if ($element['type'] === 'complete' && $element['tag'] === 'act:name') {
$account->name = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'act:id') { // TODO check type="guid"
$account->id = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'act:type') {
$account->type = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'act:code') {
$account->code = $element['value'];
} elseif ($element['type'] === 'open' && $element['tag'] === 'act:commodity') {
$account->commodity = $this->parseCurrency($elements);
} elseif ($element['type'] === 'complete' && $element['tag'] === 'act:commodity-scu') {
$account->commodityScu = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'act:non-standard-scu') {
// $account->type = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'act:description') {
$account->description = $element['value'];
} elseif ($element['type'] === 'open' && $element['tag'] === 'act:slots') {
$this->skipTag($elements, $element['tag'], $element['level']); // TODO
} elseif ($element['type'] === 'complete' && $element['tag'] === 'act:parent') { // TODO check type="guid"
$account->parent = $element['value'];
} elseif ($element['type'] === 'close') {
return $account;
} else {
throw new \Exception('Unexpected xml tag: ' . print_r($element, true));
}
}
throw new \Exception('Unexpected end of xml file.');
}
/**
* @param array $elements list of XML elements to parse.
* @return Transaction
* @throws \Exception
*/
protected function parseTransaction(&$elements, $book)
{
$transaction = new Transaction($book);
while($element = array_shift($elements)) {
if ($element['type'] === 'complete' && $element['tag'] === 'trn:id') { // TODO check type="guid"
$transaction->id = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'trn:num') {
$transaction->num = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'trn:description') {
$transaction->description = $element['value'];
} elseif ($element['type'] === 'open' && $element['tag'] === 'trn:currency') {
$transaction->currency = $this->parseCurrency($elements);
} elseif ($element['type'] === 'open' && $element['tag'] === 'trn:date-posted') {
$transaction->datePosted = $this->parseDate($elements);
} elseif ($element['type'] === 'open' && $element['tag'] === 'trn:date-entered') {
$transaction->dateEntered = $this->parseDate($elements);
} elseif ($element['type'] === 'open' && $element['tag'] === 'trn:slots') {
$this->skipTag($elements, $element['tag'], $element['level']); // TODO
} elseif ($element['type'] === 'open' && $element['tag'] === 'trn:splits') {
$transaction->splits = $this->parseTransactionSplits($elements, $transaction);
} elseif ($element['type'] === 'close') {
return $transaction;
} else {
throw new \Exception('Unexpected xml tag: ' . print_r($element, true));
}
}
throw new \Exception('Unexpected end of xml file.');
}
/**
* @param array $elements list of XML elements to parse.
* @return string
* @throws \Exception
*/
protected function parseCurrency(&$elements)
{
$currencyCode = null;
while($element = array_shift($elements)) {
if ($element['type'] === 'complete' && $element['tag'] === 'cmdty:space') {
if ($element['value'] !== 'ISO4217') {
throw new \Exception('Only ISO4217 currency codes are supported. Found a ' . $element['value'] . ' value.');
}
} elseif ($element['type'] === 'complete' && $element['tag'] === 'cmdty:id') {
$currencyCode = $element['value'];
} elseif ($element['type'] === 'close') {
return $currencyCode;
} else {
throw new \Exception('Unexpected xml tag: ' . print_r($element, true));
}
}
throw new \Exception('Unexpected end of xml file.');
}
/**
* @param array $elements list of XML elements to parse.
* @return TransactionSplit[]
* @throws \Exception
*/
protected function parseTransactionSplits(&$elements, $transaction)
{
$splits = array();
while($element = array_shift($elements)) {
if ($element['type'] === 'open' && $element['tag'] === 'trn:split') {
$splits[] = $this->parseTransactionSplit($elements, $transaction);
} elseif ($element['type'] === 'close') {
return $splits;
} else {
throw new \Exception('Unexpected xml tag: ' . print_r($element, true));
}
}
throw new \Exception('Unexpected end of xml file.');
}
/**
* @param array $elements list of XML elements to parse.
* @return TransactionSplit
* @throws \Exception
*/
protected function parseTransactionSplit(&$elements, $transaction)
{
$split = new TransactionSplit($transaction);
while($element = array_shift($elements)) {
if ($element['type'] === 'complete' && $element['tag'] === 'split:id') {
$split->id = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'split:reconciled-state') {
$split->reconciledState = $element['value'];
} elseif ($element['type'] === 'open' && $element['tag'] === 'split:reconcile-date') {
$split->reconciledDate = $this->parseDate($elements);
} elseif ($element['type'] === 'complete' && $element['tag'] === 'split:value') {
$split->value = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'split:quantity') {
$split->quantity = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'split:account') { // TODO check type="guid"
$split->account = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'split:memo') {
$split->memo = $element['value'];
} elseif ($element['type'] === 'complete' && $element['tag'] === 'split:action') {
$split->account = $element['value'];
} elseif ($element['type'] === 'close') {
return $split;
} else {
throw new \Exception('Unexpected xml tag: ' . print_r($element, true));
}
}
throw new \Exception('Unexpected end of xml file.');
}
/**
* @param array $elements list of XML elements to parse.
* @return string
* @throws \Exception
*/
protected function parseDate(&$elements)
{
$date = null;
while($element = array_shift($elements)) {
if ($element['type'] === 'complete' && $element['tag'] === 'ts:date') {
$date = $element['value'];
} elseif ($element['type'] === 'close') {
return $date;
} else {
throw new \Exception('Unexpected xml tag: ' . print_r($element, true));
}
}
throw new \Exception('Unexpected end of xml file.');
}
protected function postProcess()
{
foreach($this->books as $book) {
foreach($book->accounts as $account) {
if (!$account->isRoot()) {
if (isset($book->accounts[$account->parent])) {
$book->accounts[$account->parent]->children[$account->id] = $account;
$account->parent = $book->accounts[$account->parent];
} else {
throw new \Exception('Account not found: ' . $account->parent);
}
if ($account->commodity === null) {
throw new \Exception('Account without commodity: ' . $account->id);
}
$account->commodity = $this->getCurrency($account->commodity);
}
}
foreach($book->transactions as $transaction) {
foreach($transaction->splits as $split) {
if (isset($book->accounts[$split->account])) {
$book->accounts[$split->account]->transactionSplits[$split->id] = $split;
$split->account = $book->accounts[$split->account];
} else {
throw new \Exception('Account not found: ' . $split->account);
}
$transaction->currency = $this->getCurrency($transaction->currency);
$split->quantity = $this->string2money($split->quantity, $transaction->currency);
$split->value = $this->string2money($split->value, $transaction->currency);
}
}
}
}
/**
* @param $value
* @param Currency $currency
* @return Money
* @throws \Exception
*/
protected function string2money($value, $currency)
{
$parts = explode('/', $value);
if (!preg_match('/^-?[0-9]+$/', $parts[0])) {
throw new \Exception('Illegal currency value: ' . $value . ' for currency ' . $currency);
}
if (isset($parts[1])) {
$div = (int) $parts[1];
if ($div === $currency->getSubUnit()) {
$moneyValue = (int) $parts[0];
} elseif ($div < $currency->getSubUnit()) {
$moneyValue = ((int) $parts[0]) * $currency->getSubUnit() / $div;
if (!is_int($moneyValue)) {
throw new \Exception('Illegal currency value: ' . $value . ' for currency ' . $currency . '. Value conversion resulted in a float value');
}
} else {
throw new \Exception('Unknown currency value: ' . $value . ' for currency ' . $currency);
}
} else {
throw new \Exception('Unknown currency value: ' . $value . ' for currency ' . $currency);
}
return new Money($moneyValue, $currency);
}
/**
* @param string $code
* @return Currency
*/
protected function getCurrency($code)
{
if ($code === null) {
return null;
} elseif ($code instanceof Currency) {
return $code;
}
if (isset($this->_currencies[$code])) {
return $this->_currencies[$code];
}
try {
return $this->_currencies[$code] = new Currency($code);
} catch (\Exception $e) {
throw new \Exception("Unknown currency: '$code'.", $e->getCode(), $e);
}
}
}