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 include_once($path_to_root . "/includes/remote_url.inc");
13 //---------------------------------------------------------------------------------------------
14 function get_exchange_rate($rate_id)
16 $sql = "SELECT * FROM ".TB_PREF."exchange_rates WHERE id=".db_escape($rate_id);
17 $result = db_query($sql, "could not get exchange rate for $rate_id");
19 return db_fetch($result);
22 // Retrieves buy exchange rate for given currency/date, zero if no result
23 function get_date_exchange_rate($curr_code, $date_)
25 $date = date2sql($date_);
26 $sql = "SELECT rate_buy FROM ".TB_PREF."exchange_rates WHERE curr_code=".db_escape($curr_code)
27 ." AND date_='$date'";
28 $result = db_query($sql, "could not get exchange rate for $curr_code - $date_");
30 if(db_num_rows($result) == 0)
32 $row = db_fetch($result);
36 //---------------------------------------------------------------------------------------------
38 function update_exchange_rate($curr_code, $date_, $buy_rate, $sell_rate)
40 if (is_company_currency($curr_code))
41 display_db_error("Exchange rates cannot be set for company currency", "", true);
43 $date = date2sql($date_);
45 $sql = "UPDATE ".TB_PREF."exchange_rates SET rate_buy=$buy_rate, rate_sell=".db_escape($sell_rate)
46 ." WHERE curr_code=".db_escape($curr_code)." AND date_='$date'";
48 db_query($sql, "could not add exchange rate for $curr_code");
51 //---------------------------------------------------------------------------------------------
53 function add_exchange_rate($curr_code, $date_, $buy_rate, $sell_rate)
55 if (is_company_currency($curr_code))
56 display_db_error("Exchange rates cannot be set for company currency", "", true);
58 $date = date2sql($date_);
60 $sql = "INSERT INTO ".TB_PREF."exchange_rates (curr_code, date_, rate_buy, rate_sell)
61 VALUES (".db_escape($curr_code).", '$date', ".db_escape($buy_rate)
62 .", ".db_escape($sell_rate).")";
63 db_query($sql, "could not add exchange rate for $curr_code");
66 //---------------------------------------------------------------------------------------------
68 function delete_exchange_rate($rate_id)
70 $sql = "DELETE FROM ".TB_PREF."exchange_rates WHERE id=".db_escape($rate_id);
71 db_query($sql, "could not delete exchange rate $rate_id");
74 //-----------------------------------------------------------------------------
75 // Retrieve exchange rate as of date $date from external source (usually inet)
77 function retrieve_exrate($curr_b, $date)
79 $rate = hook_retrieve_exrate($curr_b, $date);
80 if (is_numeric($rate))
82 return get_extern_rate($curr_b, 'ECB', $date);
84 //-----------------------------------------------------------------------------
86 function get_extern_rate($curr_b, $provider = 'ECB', $date)
88 $curr_a = get_company_pref('curr_default');
89 if ($provider == 'ECB')
91 $filename = "/stats/eurofxref/eurofxref-daily.xml";
92 $site = "www.ecb.int";
94 elseif ($provider == 'YAHOO')
96 $filename = "/q?s={$curr_a}{$curr_b}=X";
97 $site = "finance.yahoo.com";
99 elseif ($provider == 'GOOGLE')
101 $filename = "/finance/converter?a=1&from={$curr_a}&to={$curr_b}";
102 $site = "finance.google.com";
106 if (function_exists('curl_init'))
107 { // first check with curl as we can set short timeout;
111 curl_setopt ($ch, CURLOPT_URL, 'http://'.$site.$filename);
112 curl_setopt ($ch, CURLOPT_COOKIEJAR, "cookie.txt");
113 curl_setopt ($ch, CURLOPT_HEADER, 0);
114 curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
115 // prevent warning while save_mode/open_basedir on (redireciton doesn't occur at least on ECB page)
116 @curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1);
117 curl_setopt ($ch, CURLOPT_TIMEOUT, 3);
118 $contents = curl_exec ($ch);
120 // due to resolver bug in some curl versions (e.g. 7.15.5)
121 // try again for constant IP.
122 $site="195.128.2.97";
123 } while( ($contents == '') && $retry--);
126 $contents = url_get_contents("http://".$site.$filename);
129 display_warning(sprintf(_("Cannot retrieve currency rate from %s page. Please set the rate manually."), $provider));
131 if ($provider == 'ECB')
133 $contents = str_replace ("<Cube currency='USD'", " <Cube currency='EUR' rate='1'/> <Cube currency='USD'", $contents);
134 $from_mask = "|<Cube\s*currency=\'" . $curr_a . "\'\s*rate=\'([\d.,]*)\'\s*/>|i";
135 preg_match ( $from_mask, $contents, $out );
136 $val_a = isset($out[1]) ? $out[1] : 0;
137 $val_a = str_replace ( ',', '', $val_a );
138 $to_mask = "|<Cube\s*currency=\'" . $curr_b . "\'\s*rate=\'([\d.,]*)\'\s*/>|i";
139 preg_match ( $to_mask, $contents, $out );
140 $val_b = isset($out[1]) ? $out[1] : 0;
141 $val_b = str_replace ( ',', '', $val_b );
144 $val = $val_a / $val_b;
151 elseif ($provider == 'YAHOO')
154 if (preg_match('/Last\sTrade:(.*?)Trade\sTime/s', $contents, $matches)) {
155 $val = strip_tags($matches[1]);
156 $val = str_replace(',', '', $val);
161 elseif ($provider == 'GOOGLE')
164 $regexp = "%([\d|.]+)\s+{$curr_a}\s+=\s+<span\sclass=(.*)>([\d|.]+)\s+{$curr_b}\s*</span>%s";
165 if (preg_match($regexp, $contents, $matches))
168 $val = str_replace(',', '', $val);
174 } /* end function get_extern_rate */
176 //-----------------------------------------------------------------------------
178 function get_sql_for_exchange_rates()
180 $sql = "SELECT date_, rate_buy, id FROM "
181 .TB_PREF."exchange_rates "
182 ."WHERE curr_code=".db_escape($_POST['curr_abrev'])."
183 ORDER BY date_ DESC";