mirror of
https://github.com/rn10950/RetroZilla.git
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254 lines
7.8 KiB
PHP
254 lines
7.8 KiB
PHP
<?php
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/* -*- Mode: php; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Extension Update Service.
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*
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* The Initial Developer of the Original Code is Vladimir Vukicevic.
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* Portions created by the Initial Developer are Copyright (C) 2004
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Vladimir Vukicevic <vladimir@pobox.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/// config bits:
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$db_server = "";
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$db_user = "";
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$db_pass = "";
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$db_name = "";
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// error handling
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function bail ($errstr) {
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die("Error: " . $errstr);
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}
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// major.minor.release.build[+]
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// make sure this is a valid version
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function expandversion ($vstr) {
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$v = explode('.', $vstr);
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if ($vstr == '' || count($v) == 0 || count($v) > 4) {
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bail ('Bogus version.');
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}
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$vlen = count($v);
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$ret = array();
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$hasplus = 0;
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for ($i = 0; $i < 4; $i++) {
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if ($i > $vlen-1) {
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// this version chunk was not specified; give 0
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$ret[] = 0;
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} else {
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$s = $v[$i];
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if ($i == 3) {
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// need to check for +
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$slen = strlen($s);
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if ($s{$slen-1} == '+') {
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$s = substr($s, 0, $slen-1);
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$hasplus = 1;
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}
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}
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$ret[] = intval($s);
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}
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}
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$ret[] = $hasplus;
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return $ret;
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}
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function vercmp ($a, $b) {
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if ($a == $b)
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return 0;
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$va = expandversion($a);
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$vb = expandversion($b);
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for ($i = 0; $i < 5; $i++)
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if ($va[$i] != $vb[$i])
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return ($vb[$i] - $va[$i]);
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return 0;
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}
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//
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// These are passed in the GET string
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//
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if (!array_key_exists('reqVersion', $_GET))
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bail ("Invalid request.");
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$reqVersion = $_GET['reqVersion'];
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if ($reqVersion == 1) {
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if (!array_key_exists('id', $_GET) ||
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!array_key_exists('version', $_GET) ||
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!array_key_exists('maxAppVersion', $_GET) ||
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!array_key_exists('appID', $_GET) ||
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!array_key_exists('appVersion', $_GET))
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bail ("Invalid request.");
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$reqItemGuid = $_GET['id'];
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$reqItemVersion = $_GET['version'];
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$reqItemMaxAppVersion = $_GET['maxAppVersion'];
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$reqTargetAppGuid = $_GET['appID'];
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$reqTargetAppVersion = $_GET['appVersion'];
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} else {
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// bail
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bail ("Bad request version received");
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}
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// check args
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if (empty($reqItemGuid) || empty($reqItemVersion) || empty($reqTargetAppGuid)) {
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bail ("Invalid request.");
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}
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mysql_connect($db_server, $db_user, $db_pass)
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|| bail ("Failed to connect to database.");
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mysql_select_db ($db_name)
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|| bail ("Failed to select database.");
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// We need to fetch two things for the database:
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// 1) The current extension version's info, for a possibly updated max version
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// 2) The latest version available, if different from the above.
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//
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// We know:
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// - $reqItemGuid
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// - $reqItemVersion
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// - $reqTargetAppGuid
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// - $reqTargetAppVersion
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//
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// We need to get:
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// - extension GUID
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// - extension version
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// - extension xpi link
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// - app ID
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// - app min version
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// - app max version
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$query = "SELECT t_main.guid AS extguid,
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t_version.version AS extversion,
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t_version.uri AS exturi,
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t_version.minappver AS appminver,
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t_version.maxappver AS appmaxver,
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t_applications.guid AS appguid
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FROM t_main, t_version, t_applications
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WHERE t_main.guid = '" . mysql_real_escape_string($reqItemGuid) . "' AND
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t_main.id = t_version.id AND
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t_version.appid = t_applications.appid AND
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t_applications.guid = '" . mysql_real_escape_string($reqTargetAppGuid) . "'";
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$result = mysql_query ($query);
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if (!$result) {
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bail ('Query error: ' . mysql_error());
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}
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// info for this version
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$thisVersionData = '';
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// info for highest version
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$highestVersion = '';
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$highestVersionData = '';
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while ($line = mysql_fetch_array($result, MYSQL_ASSOC)) {
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// is this row for the current version?
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if ($line['extversion'] == $reqItemVersion) {
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// if so
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$thisVersionData = $line;
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} else if (vercmp ($reqItemVersion, $line['extversion']) > 0) {
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// did we already see an update with a higher version than this?
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if ($highestVersion != '' && vercmp ($highestVersion, $line['extversion']) < 0)
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continue;
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// does this update support my current app version?
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if (vercmp($line['appmaxver'], $reqTargetAppVersion) > 0 ||
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vercmp($reqTargetAppVersion, $line['appminver']) > 0)
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continue;
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$highestVersion = $line['extversion'];
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$highestVersionData = $line;
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}
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}
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mysql_free_result ($result);
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//
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// Now to spit out the RDF. We hand-generate because the data is pretty simple.
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//
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print "<?xml version=\"1.0\"?>\n";
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print "<RDF:RDF xmlns:RDF=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\" xmlns:em=\"http://www.mozilla.org/2004/em-rdf#\">\n\n";
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print "<RDF:Description about=\"urn:mozilla:extension:{$reqItemGuid}\">\n";
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// output list of updates (just highest and this)
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print " <em:updates><RDF:Seq>\n";
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if (!empty($thisVersionData))
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print " <RDF:li resource=\"urn:mozilla:extension:{$reqItemGuid}:{$thisVersionData['extversion']}\"/>\n";
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if (!empty($highestVersionData))
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print " <RDF:li resource=\"urn:mozilla:extension:{$reqItemGuid}:{$highestVersionData['extversion']}\"/>\n";
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print " </RDF:Seq></em:updates>\n";
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// output compat bits for firefox 0.9
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if (!empty($highestVersionData)) {
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print " <em:version>{$highestVersionData['extversion']}</em:version>\n";
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print " <em:updateLink>{$highestVersionData['exturi']}</em:updateLink>\n";
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}
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print "</RDF:Description>\n\n";
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function print_update ($data) {
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print "<RDF:Description about=\"urn:mozilla:extension:{$reqItemGuid}:{$data['extversion']}\">\n";
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print " <em:version>{$data['extversion']}</em:version>\n";
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print " <em:targetApplication>\n";
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print " <RDF:Description>\n";
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print " <em:id>{$data['appguid']}</em:id>\n";
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print " <em:minVersion>{$data['appminver']}</em:minVersion>\n";
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print " <em:maxVersion>{$data['appmaxver']}</em:maxVersion>\n";
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print " <em:updateLink>{$data['exturi']}</em:updateLink>\n";
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print " </RDF:Description>\n";
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print " </em:targetApplication>\n";
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print "</RDF:Description>\n";
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}
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if (!empty($thisVersionData))
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print_update ($thisVersionData);
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if (!empty($highestVersionData))
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print_update ($highestVersionData);
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print "</RDF:RDF>\n";
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?>
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