function get_maximum_upload_size()
{
$limits['database'] = pow(2, 32) - 1;
// 4 GB
/* we trust the sysadmin :)
ini_get_bytes('memory_limit');
ini_get_bytes('post_max_size');
*/
$limits['upload'] = ini_get_bytes('upload_max_filesize');
return array_min($limits);
}
function admin_home_messages()
{
global $Opt, $Conf;
$m = array();
$errmarker = "<span class=\"error\">Error:</span> ";
if (preg_match("/^(?:[1-4]\\.|5\\.[012])/", phpversion())) {
$m[] = $errmarker . "HotCRP requires PHP version 5.3 or higher. You are running PHP version " . htmlspecialchars(phpversion()) . ".";
}
if (get_magic_quotes_gpc()) {
$m[] = $errmarker . "The PHP <code>magic_quotes_gpc</code> feature is on, which is a bad idea. Check that your Web server is using HotCRP’s <code>.htaccess</code> file. You may also want to disable <code>magic_quotes_gpc</code> in your <code>php.ini</code> configuration file.";
}
if (get_magic_quotes_runtime()) {
$m[] = $errmarker . "The PHP <code>magic_quotes_runtime</code> feature is on, which is a bad idea. Check that your Web server is using HotCRP’s <code>.htaccess</code> file. You may also want to disable <code>magic_quotes_runtime</code> in your <code>php.ini</code> configuration file.";
}
if (defined("JSON_HOTCRP")) {
$m[] = "Your PHP was built without JSON functionality. HotCRP is using its built-in replacements; the native functions would be faster.";
}
if ((int) $Opt["globalSessionLifetime"] < $Opt["sessionLifetime"]) {
$m[] = "PHP’s systemwide <code>session.gc_maxlifetime</code> setting, which is " . htmlspecialchars($Opt["globalSessionLifetime"]) . " seconds, is less than HotCRP’s preferred session expiration time, which is " . $Opt["sessionLifetime"] . " seconds. You should update <code>session.gc_maxlifetime</code> in the <code>php.ini</code> file or users may be booted off the system earlier than you expect.";
}
if (!function_exists("imagecreate")) {
$m[] = $errmarker . "This PHP installation lacks support for the GD library, so HotCRP cannot generate score charts (as backup for browsers that don’t support <canvas>). You should update your PHP installation. For example, on Ubuntu Linux, install the <code>php5-gd</code> package.";
}
$result = $Conf->qx("show variables like 'max_allowed_packet'");
$max_file_size = ini_get_bytes("upload_max_filesize");
if (($row = edb_row($result)) && $row[1] < $max_file_size && !@$Opt["dbNoPapers"]) {
$m[] = $errmarker . "MySQL’s <code>max_allowed_packet</code> setting, which is " . htmlspecialchars($row[1]) . " bytes, is less than the PHP upload file limit, which is {$max_file_size} bytes. You should update <code>max_allowed_packet</code> in the system-wide <code>my.cnf</code> file or the system may not be able to handle large papers.";
}
// Conference names
if (@$Opt["shortNameDefaulted"]) {
$m[] = "<a href=\"" . hoturl("settings", "group=msg") . "\">Set the conference abbreviation</a> to a short name for your conference, such as “OSDI ’14”.";
} else {
if (simplify_whitespace($Opt["shortName"]) != $Opt["shortName"]) {
$m[] = "The <a href=\"" . hoturl("settings", "group=msg") . "\">conference abbreviation</a> setting has a funny value. To fix it, remove leading and trailing spaces, use only space characters (no tabs or newlines), and make sure words are separated by single spaces (never two or more).";
}
}
$site_contact = Contact::site_contact();
if (!$site_contact->email || $site_contact->email == "*****@*****.**") {
$m[] = "<a href=\"" . hoturl("settings", "group=msg") . "\">Set the conference contact’s name and email</a> so submitters can reach someone if things go wrong.";
}
// Backwards compatibility
if (@$Conf->setting_data("clickthrough_submit")) {
// delete 12/2014
$m[] = "You need to recreate the <a href=\"" . hoturl("settings", "group=msg") . "\">clickthrough submission terms</a>.";
}
// Weird URLs?
foreach (array("conferenceSite", "paperSite") as $k) {
if (isset($Opt[$k]) && $Opt[$k] && !preg_match('`\\Ahttps?://(?:[-.~\\w:/?#\\[\\]@!$&\'()*+,;=]|%[0-9a-fA-F][0-9a-fA-F])*\\z`', $Opt[$k])) {
$m[] = $errmarker . "The <code>\$Opt[\"{$k}\"]</code> setting, ‘<code>" . htmlspecialchars($Opt[$k]) . "</code>’, is not a valid URL. Edit the <code>conf/options.php</code> file to fix this problem.";
}
}
// Double-encoding bugs found?
if ($Conf->setting("bug_doubleencoding")) {
$m[] = "Double-encoded URLs have been detected. Incorrect uses of Apache’s <code>mod_rewrite</code>, and other middleware, can encode URL parameters twice. This can cause problems, for instance when users log in via links in email. (“<code>a@b.com</code>” should be encoded as “<code>a%40b.com</code>”; a double encoding will produce “<code>a%2540b.com</code>”.) HotCRP has tried to compensate, but you really should fix the problem. For <code>mod_rewrite</code> add <a href='http://httpd.apache.org/docs/current/mod/mod_rewrite.html'>the <code>[NE]</code> option</a> to the relevant RewriteRule. <a href=\"" . hoturl_post("index", "clearbug=doubleencoding") . "\">(Clear this message)</a>";
}
// Unnotified reviews?
if ($Conf->setting("pcrev_assigntime", 0) > $Conf->setting("pcrev_informtime", 0)) {
$assigntime = $Conf->setting("pcrev_assigntime");
$result = $Conf->qe("select paperId from PaperReview where reviewType>" . REVIEW_PC . " and timeRequested>timeRequestNotified and reviewSubmitted is null and reviewNeedsSubmit!=0 limit 1");
if (edb_nrows($result)) {
$m[] = "PC review assignments have changed. You may want to <a href=\"" . hoturl("mail", "template=newpcrev") . "\">send mail about the new assignments</a>. <a href=\"" . hoturl_post("index", "clearnewpcrev={$assigntime}") . "\">(Clear this message)</a>";
} else {
$Conf->save_setting("pcrev_informtime", $assigntime);
}
}
if (count($m)) {
$Conf->warnMsg("<div>" . join('</div><div style="margin-top:0.5em">', $m) . "</div>");
}
}
function admin_home_messages()
{
global $Opt, $Conf;
$m = array();
$errmarker = "<span class=\"error\">Error:</span> ";
if (preg_match("/^(?:[1-4]\\.|5\\.[0123])/", phpversion())) {
$m[] = $errmarker . "HotCRP requires PHP version 5.4 or higher. You are running PHP version " . htmlspecialchars(phpversion()) . ".";
}
if (get_magic_quotes_gpc()) {
$m[] = $errmarker . "The PHP <code>magic_quotes_gpc</code> feature is on, which is a bad idea. Check that your Web server is using HotCRP’s <code>.htaccess</code> file. You may also want to disable <code>magic_quotes_gpc</code> in your <code>php.ini</code> configuration file.";
}
if (get_magic_quotes_runtime()) {
$m[] = $errmarker . "The PHP <code>magic_quotes_runtime</code> feature is on, which is a bad idea. Check that your Web server is using HotCRP’s <code>.htaccess</code> file. You may also want to disable <code>magic_quotes_runtime</code> in your <code>php.ini</code> configuration file.";
}
if (defined("JSON_HOTCRP")) {
$m[] = "Your PHP was built without JSON functionality. HotCRP is using its built-in replacements; the native functions would be faster.";
}
if ((int) $Opt["globalSessionLifetime"] < $Opt["sessionLifetime"]) {
$m[] = "PHP’s systemwide <code>session.gc_maxlifetime</code> setting, which is " . htmlspecialchars($Opt["globalSessionLifetime"]) . " seconds, is less than HotCRP’s preferred session expiration time, which is " . $Opt["sessionLifetime"] . " seconds. You should update <code>session.gc_maxlifetime</code> in the <code>php.ini</code> file or users may be booted off the system earlier than you expect.";
}
if (!function_exists("imagecreate") && $Conf->setting("__gd_required")) {
$m[] = $errmarker . "This PHP installation lacks support for the GD library, so HotCRP can’t generate backup score charts for old browsers. Some of your users require this backup. You should update your PHP installation. For example, on Ubuntu Linux, install the <code>php" . PHP_MAJOR_VERSION . "-gd</code> package.";
}
$result = Dbl::qx_raw("show variables like 'max_allowed_packet'");
$max_file_size = ini_get_bytes("upload_max_filesize");
if (($row = edb_row($result)) && $row[1] < $max_file_size && !get($Opt, "dbNoPapers")) {
$m[] = $errmarker . "MySQL’s <code>max_allowed_packet</code> setting, which is " . htmlspecialchars($row[1]) . " bytes, is less than the PHP upload file limit, which is {$max_file_size} bytes. You should update <code>max_allowed_packet</code> in the system-wide <code>my.cnf</code> file or the system may not be able to handle large papers.";
}
// Conference names
if (get($Opt, "shortNameDefaulted")) {
$m[] = "<a href=\"" . hoturl("settings", "group=basics") . "\">Set the conference abbreviation</a> to a short name for your conference, such as “OSDI ’14”.";
} else {
if (simplify_whitespace(Conf::$gShortName) != Conf::$gShortName) {
$m[] = "The <a href=\"" . hoturl("settings", "group=basics") . "\">conference abbreviation</a> setting has a funny value. To fix it, remove leading and trailing spaces, use only space characters (no tabs or newlines), and make sure words are separated by single spaces (never two or more).";
}
}
$site_contact = Contact::site_contact();
if (!$site_contact->email || $site_contact->email == "*****@*****.**") {
$m[] = "<a href=\"" . hoturl("settings", "group=basics") . "\">Set the conference contact’s name and email</a> so submitters can reach someone if things go wrong.";
}
// Any -100 preferences around?
$result = Dbl::ql_raw($Conf->preferenceConflictQuery(false, "limit 1"));
if ($row = edb_row($result)) {
$m[] = "PC members have indicated paper conflicts (using review preferences of −100 or less) that aren’t yet confirmed. <a href='" . hoturl_post("autoassign", "a=prefconflict&assign=1") . "' class='nw'>Confirm these conflicts</a>";
}
// Weird URLs?
foreach (array("conferenceSite", "paperSite") as $k) {
if (isset($Opt[$k]) && $Opt[$k] && !preg_match('`\\Ahttps?://(?:[-.~\\w:/?#\\[\\]@!$&\'()*+,;=]|%[0-9a-fA-F][0-9a-fA-F])*\\z`', $Opt[$k])) {
$m[] = $errmarker . "The <code>\$Opt[\"{$k}\"]</code> setting, ‘<code>" . htmlspecialchars($Opt[$k]) . "</code>’, is not a valid URL. Edit the <code>conf/options.php</code> file to fix this problem.";
}
}
// Unnotified reviews?
if ($Conf->setting("pcrev_assigntime", 0) > $Conf->setting("pcrev_informtime", 0)) {
$assigntime = $Conf->setting("pcrev_assigntime");
$result = Dbl::qe_raw("select paperId from PaperReview where reviewType>" . REVIEW_PC . " and timeRequested>timeRequestNotified and reviewSubmitted is null and reviewNeedsSubmit!=0 limit 1");
if (edb_nrows($result)) {
$m[] = "PC review assignments have changed. <a href=\"" . hoturl("mail", "template=newpcrev") . "\">Send review assignment notifications</a> <span class=\"barsep\">·</span> <a href=\"" . hoturl_post("index", "clearnewpcrev={$assigntime}") . "\">Clear this message</a>";
} else {
$Conf->save_setting("pcrev_informtime", $assigntime);
}
}
// Review round expired?
if (count($Conf->round_list()) > 1 && $Conf->time_review_open() && $Conf->missed_review_deadline($Conf->current_round(), true, false)) {
$any_rounds_open = false;
foreach ($Conf->defined_round_list() as $i => $rname) {
if (!$any_rounds_open && !$Conf->missed_review_deadline($i, true, false) && $Conf->setting($Conf->review_deadline($i, true, false))) {
$any_rounds_open = $rname;
}
}
if ($any_rounds_open) {
$m[] = "The deadline for the current review round, " . htmlspecialchars($Conf->current_round_name()) . ", has passed. You may want to <a href=\"" . hoturl("settings", "group=reviews") . "\">change the current round</a> to " . htmlspecialchars($any_rounds_open) . ".";
}
}
if (count($m)) {
$Conf->warnMsg('<div class="multimessage"><div>' . join('</div><div>', $m) . "</div></div>");
}
}
}
if (get($Opt, "multiconference")) {
Multiconference::init();
}
if (get($Opt, "include")) {
read_included_options($Opt["include"]);
}
}
if (!get($Opt, "loaded") || get($Opt, "missing")) {
Multiconference::fail_bad_options();
}
if (get($Opt, "dbLogQueries")) {
Dbl::log_queries($Opt["dbLogQueries"]);
}
// Allow lots of memory
if (!get($Opt, "memoryLimit") && ini_get_bytes("memory_limit") < 128 << 20) {
$Opt["memoryLimit"] = "128M";
}
if (get($Opt, "memoryLimit")) {
ini_set("memory_limit", $Opt["memoryLimit"]);
}
// Create the conference
global $Conf;
if (!$Conf) {
$Conf = Conf::$g = new Conf($Opt, true);
}
if (!$Conf->dblink) {
Multiconference::fail_bad_database();
}
// Extract problem set information
function psets_json_data($exclude_overrides)
