2 /**********************************************************************
3 Copyright (C) FrontAccounting, LLC.
4 Released under the terms of the GNU General Public License, GPL,
5 as published by the Free Software Foundation, either version 3
6 of the License, or (at your option) any later version.
7 This program is distributed in the hope that it will be useful,
8 but WITHOUT ANY WARRANTY; without even the implied warranty of
9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
10 See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
11 ***********************************************************************/
12 //---------------------------------------------------------------------------------------------
13 function get_exchange_rate($rate_id)
15 $sql = "SELECT * FROM ".TB_PREF."exchange_rates WHERE id=".db_escape($rate_id);
16 $result = db_query($sql, "could not get exchange rate for $rate_id");
18 return db_fetch($result);
21 // Retrieves buy exchange rate for given currency/date, zero if no result
22 function get_date_exchange_rate($curr_code, $date_)
24 $date = date2sql($date_);
25 $sql = "SELECT rate_buy FROM ".TB_PREF."exchange_rates WHERE curr_code=".db_escape($curr_code)
26 ." AND date_='$date'";
27 $result = db_query($sql, "could not get exchange rate for $curr_code - $date_");
29 if(db_num_rows($result) == 0)
31 $row = db_fetch($result);
35 //---------------------------------------------------------------------------------------------
37 function update_exchange_rate($curr_code, $date_, $buy_rate, $sell_rate)
39 if (is_company_currency($curr_code))
40 display_db_error("Exchange rates cannot be set for company currency", "", true);
42 $date = date2sql($date_);
44 $sql = "UPDATE ".TB_PREF."exchange_rates SET rate_buy=$buy_rate, rate_sell=".db_escape($sell_rate)
45 ." WHERE curr_code=".db_escape($curr_code)." AND date_='$date'";
47 db_query($sql, "could not add exchange rate for $curr_code");
50 //---------------------------------------------------------------------------------------------
52 function add_exchange_rate($curr_code, $date_, $buy_rate, $sell_rate)
54 if (is_company_currency($curr_code))
55 display_db_error("Exchange rates cannot be set for company currency", "", true);
57 $date = date2sql($date_);
59 $sql = "INSERT INTO ".TB_PREF."exchange_rates (curr_code, date_, rate_buy, rate_sell)
60 VALUES (".db_escape($curr_code).", '$date', ".db_escape($buy_rate)
61 .", ".db_escape($sell_rate).")";
62 db_query($sql, "could not add exchange rate for $curr_code");
65 //---------------------------------------------------------------------------------------------
67 function delete_exchange_rate($rate_id)
69 $sql = "DELETE FROM ".TB_PREF."exchange_rates WHERE id=".db_escape($rate_id);
70 db_query($sql, "could not delete exchange rate $rate_id");
73 //---------------------------------------------------------------------------------------------
75 function get_ecb_rate($curr_b)
77 $curr_a = get_company_pref('curr_default');
78 $ecb_filename = '/stats/eurofxref/eurofxref-daily.xml';
79 $ecb_site = 'www.ecb.int';
82 if (function_exists('curl_init'))
83 { // first check with curl as we can set short timeout;
87 curl_setopt ($ch, CURLOPT_URL, 'http://'.$ecb_site.$ecb_filename);
88 curl_setopt ($ch, CURLOPT_COOKIEJAR, "cookie.txt");
89 curl_setopt ($ch, CURLOPT_HEADER, 0);
90 curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
91 curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1);
92 curl_setopt ($ch, CURLOPT_TIMEOUT, 3);
93 $contents = curl_exec ($ch);
95 // due to resolver bug in some curl versions (e.g. 7.15.5)
96 // try again for constant IP.
97 $ecb_site="195.128.2.97";
98 } while( ($contents == '') && $retry--);
101 $handle = @fopen("http://".$ecb_site.$ecb_filename, 'rb');
105 $data = @fread( $handle, 4096 );
106 if ( strlen ( $data ) == 0 )
108 $contents .= $data; // with this syntax only text will be translated, whole text with htmlspecialchars($data)
115 display_warning(_('Cannot retrieve currency rate from ECB page. Please set the rate manually.'));
117 $contents = str_replace ("<Cube currency='USD'", " <Cube currency='EUR' rate='1'/> <Cube currency='USD'", $contents);
118 $from_mask = "|<Cube\s*currency=\'" . $curr_a . "\'\s*rate=\'([\d.,]*)\'\s*/>|i";
119 preg_match ( $from_mask, $contents, $out );
120 $val_a = isset($out[1]) ? $out[1] : 0;
121 $val_a = str_replace ( ',', '', $val_a );
122 $to_mask = "|<Cube\s*currency=\'" . $curr_b . "\'\s*rate=\'([\d.,]*)\'\s*/>|i";
123 preg_match ( $to_mask, $contents, $out );
124 $val_b = isset($out[1]) ? $out[1] : 0;
125 $val_b = str_replace ( ',', '', $val_b );
128 $val = $val_a / $val_b;
135 } // end function get_ecb_rate