. ***********************************************************************/ 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 = 'ECB', $date) { global $path_to_root; if ($date != Today()) // no historical rates available return 0; $curr_a = get_company_pref('curr_default'); if ($provider == 'ECB') { $filename = "/stats/eurofxref/eurofxref-daily.xml"; $site = "www.ecb.europa.eu"; $site_ip="172.230.157.137"; } elseif ($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') { $filename = "/finance/converter?a=1&from={$curr_a}&to={$curr_b}"; $site = "finance.google.com"; } elseif ($provider == 'BLOOMBERG') { $filename = "/quote/{$curr_b}{$curr_a}:CUR"; $site = "www.bloomberg.com"; $site_ip = "23.35.88.72"; } $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, 'http://'.$site.$filename); curl_setopt ($ch, CURLOPT_COOKIEJAR, "$path_to_root/tmp/cookie.txt"); curl_setopt ($ch, CURLOPT_HEADER, 0); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); // prevent warning while safe_mode/open_basedir on (redireciton 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 { $contents = url_get_contents("http://".$site.$filename); } if ($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') { $val = ''; $array = explode(',',$contents); // New operations for YAHOO. Safer. $val = $array[1]; if ($val != 0) $val = 1 / $val; } elseif ($provider == 'GOOGLE') { $val = ''; $regexp = "%([\d|.]+)\s+{$curr_a}\s+=\s+([\d|.]+)\s+{$curr_b}\s*%s"; if (preg_match($regexp, $contents, $matches)) { $val = $matches[3]; $val = str_replace(',', '', $val); if ($val != 0) $val = 1 / $val; } } elseif ($provider == 'BLOOMBERG') { $val = ''; $stmask = '
'; $val = strstr($contents, $stmask); $val = trim($val); $val = substr($val, strlen($stmask)); $stmask = '
'; $val = strtok($val, $stmask); $val = trim($val); } 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; }