.
***********************************************************************/
include_once($path_to_root . "/includes/remote_url.inc");
//---------------------------------------------------------------------------------------------
function get_exchange_rate($rate_id)
{
$sql = "SELECT * FROM ".TB_PREF."exchange_rates WHERE id=".db_escape($rate_id);
$result = db_query($sql, "could not get exchange rate for $rate_id");
return db_fetch($result);
}
// Retrieves buy exchange rate for given currency/date, zero if no result
function get_date_exchange_rate($curr_code, $date_)
{
$date = date2sql($date_);
$sql = "SELECT rate_buy
FROM ".TB_PREF."exchange_rates
WHERE curr_code=".db_escape($curr_code)
." AND date_='$date'";
$result = db_query($sql, "could not get exchange rate for $curr_code - $date_");
if(db_num_rows($result) == 0)
return 0;
$row = db_fetch($result);
return $row[0];
}
/*
Return last exchange rate of $currency not later than $date.
*/
function get_last_exchange_rate($curr_code, $date_)
{
$date = date2sql($date_);
$sql = "SELECT rate_buy, max(date_) as date_
FROM ".TB_PREF."exchange_rates
WHERE curr_code = ".db_escape($curr_code)."
AND date_ <= '$date' GROUP BY rate_buy ORDER BY date_ Desc LIMIT 1";
$result = db_query($sql, "could not query exchange rates");
if (db_num_rows($result) == 0)
return false;
return db_fetch_assoc($result);
}
//---------------------------------------------------------------------------------------------
function update_exchange_rate($curr_code, $date_, $buy_rate, $sell_rate)
{
if (is_company_currency($curr_code))
display_db_error("Exchange rates cannot be set for company currency", "", true);
$date = date2sql($date_);
$sql = "UPDATE ".TB_PREF."exchange_rates SET rate_buy=$buy_rate, rate_sell=".db_escape($sell_rate)
." WHERE curr_code=".db_escape($curr_code)." AND date_='$date'";
db_query($sql, "could not add exchange rate for $curr_code");
}
//---------------------------------------------------------------------------------------------
function add_exchange_rate($curr_code, $date_, $buy_rate, $sell_rate)
{
if (is_company_currency($curr_code))
display_db_error("Exchange rates cannot be set for company currency", "", true);
$date = date2sql($date_);
$sql = "INSERT INTO ".TB_PREF."exchange_rates (curr_code, date_, rate_buy, rate_sell)
VALUES (".db_escape($curr_code).", '$date', ".db_escape($buy_rate)
.", ".db_escape($sell_rate).")";
db_query($sql, "could not add exchange rate for $curr_code");
}
//---------------------------------------------------------------------------------------------
function add_new_exchange_rate($curr_code, $date_, $ex_rate)
{
if (is_company_currency($curr_code) || !$ex_rate)
return;
if (!get_date_exchange_rate($curr_code, $date_))
add_exchange_rate($curr_code, $date_, $ex_rate, $ex_rate);
}
//---------------------------------------------------------------------------------------------
function delete_exchange_rate($rate_id)
{
$sql = "DELETE FROM ".TB_PREF."exchange_rates WHERE id=".db_escape($rate_id);
db_query($sql, "could not delete exchange rate $rate_id");
}
//-----------------------------------------------------------------------------
// Retrieve exchange rate as of date $date from external source (usually inet)
//
// Exchange rate for currency revaluation purposes is defined in FA as home_currency/curr_b ratio i.e.
//
// amount [home] = amount [curr] * ex_rate
//
function retrieve_exrate($curr_b, $date)
{
global $SysPrefs;
$xchg_rate_provider = ((isset($SysPrefs->xr_providers) && isset($SysPrefs->dflt_xr_provider))
? $SysPrefs->xr_providers[$SysPrefs->dflt_xr_provider] : 'ECB');
$rate = hook_retrieve_exrate($curr_b, $date);
if (is_numeric($rate))
return $rate;
return get_extern_rate($curr_b, $xchg_rate_provider, $date);
}
//-----------------------------------------------------------------------------
function get_extern_rate($curr_b, $provider, $date)
{
global $path_to_root;
if ($date != Today()) // no historical rates available
return 0;
$contents = '';
$proto = 'http://';
$curr_a = get_company_pref('curr_default');
if ($provider == 'ECB')
{
$filename = "/stats/eurofxref/eurofxref-daily.xml";
$site = "www.ecb.europa.eu";
$proto = 'https://';
$site_ip="172.230.157.137";
$contents=file_get_contents($proto.$site.$filename);
}
elseif ($provider == 'YAHOO')
{
$filename = "/d/quotes.csv?s={$curr_a}{$curr_b}=X&f=sl1d1t1ba&e=.csv"; // new URL's for YAHOO
$site = "download.finance.yahoo.com";
$site_ip="203.84.220.151";
}
elseif ($provider == 'GOOGLE')
{
$filename = "/search?q={$curr_b}+to+{$curr_a}";
$site = "https://www.google.com";
$contents = file_get_contents($site.$filename);
}
elseif ($provider == 'BLOOMBERG')
{
$filename = "/quote/{$curr_b}{$curr_a}:CUR";
$site = "www.bloomberg.com";
$proto = 'https://';
$contents=file_get_contents($proto.$site.$filename);
}
elseif ($provider == 'EXCHANGE-RATES.ORG')
{
$filename = "/converter/{$curr_b}/{$curr_a}/1";
$site = "exchange-rates.org";
$proto = 'https://';
$contents=file_get_contents($proto.$site.$filename);
}
if (empty($contents)) {
if (function_exists('curl_init'))
{ // first check with curl as we can set short timeout;
$retry = 1;
do {
$ch = curl_init();
curl_setopt ($ch, CURLOPT_URL, $proto.$site.$filename);
curl_setopt ($ch, CURLOPT_COOKIEJAR, VARLIB_PATH."/cookie.txt");
curl_setopt ($ch, CURLOPT_HEADER, 0);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
// prevent warning while safe_mode/open_basedir on (redirection doesn't occur at least on ECB page)
if (!ini_get('safe_mode') && !ini_get('open_basedir'))
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt ($ch, CURLOPT_TIMEOUT, 3);
$contents = curl_exec ($ch);
curl_close($ch);
// due to resolver bug in some curl versions (e.g. 7.15.5)
// try again for constant IP.
if (isset($site_ip))
$site=$site_ip;
} while( ($contents == '') && $retry--);
} else {
$contents = url_get_contents($proto.$site.$filename);
}
}
$val = '';
if ($provider == 'ECB')
{
$contents = str_replace (" |i";
preg_match ( $from_mask, $contents, $out );
$val_a = isset($out[1]) ? $out[1] : 0;
$val_a = str_replace ( ',', '', $val_a );
$to_mask = "||i";
preg_match ( $to_mask, $contents, $out );
$val_b = isset($out[1]) ? $out[1] : 0;
$val_b = str_replace ( ',', '', $val_b );
if ($val_b)
{
$val = $val_a / $val_b;
}
else
{
$val = 0;
}
}
elseif ($provider == 'YAHOO')
{
$array = explode(',',$contents); // New operations for YAHOO. Safer.
$val = $array[1];
if ($val != 0)
$val = 1 / $val;
}
elseif ($provider == 'GOOGLE')
{
$data = preg_split('/\D\s(.*?)\s=\s/', $contents);
$array = explode(" ", $data[1]);
$exRate = $array[0];
$val = str_replace (',', '', $exRate);
}
elseif ($provider == 'BLOOMBERG')
{
$val = getInnerStr($contents, ',"price":', ',"');
}
elseif ($provider == 'EXCHANGE-RATES.ORG')
{
$val = getInnerStr($contents, "1 $curr_b = ",$curr_a);
}
return $val;
} /* end function get_extern_rate */
//-----------------------------------------------------------------------------
function get_sql_for_exchange_rates($curr)
{
$sql = "SELECT date_, rate_buy, id
FROM ".TB_PREF."exchange_rates "
."WHERE curr_code=".db_escape($curr)."
ORDER BY date_ DESC";
return $sql;
}
function getInnerStr($str, $start, $end)
{
// $start must be the first occurrence
// $start must not be part of $end
$val = '';
$val = strstr($str, $start);
$val = trim($val);
$val = substr($val, strlen($start));
$val = strtok($val, $end);
return trim($val);
}