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<?php
/*
* Copyright (c) 2008 Guillaume Lelarge <guillaume@lelarge.info>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
if (!function_exists('pg_connect')) {
$msg = "pg_connect() function is not available!\n
You probably need to install PHP PostgreSQL driver.\n";
die($msg);
}
// password checks
if ($g_passwordrequired && strlen($PGPASSWORD) == 0) {
// check pgpass first
$pgpassfilename = getenv('HOME').'/.pgpass';
if (file_exists($pgpassfilename)) {
$permissions = substr(decoct(fileperms($pgpassfilename)), 3);
if (!strcmp($permissions, '600')) {
$pgpassfile = fopen($pgpassfilename, 'r');
$found = false;
while (!$found && $line = fgets($pgpassfile)) {
list($host, $port, $database, $user, $password) = split (":", trim($line), 5);
if ((!strcmp($PGHOST, $host) || !strcmp('*', $host)) &&
(!strcmp($PGPORT, $port) || !strcmp('*', $port)) &&
(!strcmp($PGDATABASE, $database) || !strcmp('*', $database)) &&
(!strcmp($PGUSER, $user) || !strcmp('*', $user))) {
$found = true;
$PGPASSWORD = $password;
}
}
}
}
// if still no password
if (strlen($PGPASSWORD) == 0) {
// Be careful, password will appear in clear text on the terminal...
// At least, it won't show up in ps output :-/
echo "Password: ";
$stdin = fopen('php://stdin', 'r');
$PGPASSWORD = fgets(STDIN);
}
}
// Connects to database via the usual environnement variables
// actually, connects to a specific one
$DSN = '';
if (strlen("$PGHOST") > 0) {
$DSN .= 'host='.$PGHOST.' ';
}
if (strlen("$PGPORT") > 0) {
$DSN .= 'port='.$PGPORT.' ';
}
$DSN .= 'dbname='.$PGDATABASE.' '.
'user='.$PGUSER;
if (strlen("$PGPASSWORD") > 0) {
$DSN .= ' password='.$PGPASSWORD;
}
$connection = @pg_connect($DSN);
if (!$connection) {
echo "Connection error !\n";
echo "DSN is $DSN\n";
die();
}
?>
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