public static function filename($doc)
{
global $Opt;
$fn = $Opt["downloadPrefix"];
if ($doc->documentType == DTYPE_SUBMISSION) {
$fn .= "paper" . $doc->paperId;
} else {
if ($doc->documentType == DTYPE_FINAL) {
$fn .= "final" . $doc->paperId;
} else {
$o = PaperOption::find($doc->documentType);
if ($o && $o->type == "attachments" && ($afn = get($doc, "unique_filename") ?: $doc->filename)) {
// do not decorate with MIME type suffix
return $fn . "paper" . $doc->paperId . "-" . $o->abbr . "/" . $afn;
} else {
if ($o && $o->is_document()) {
$fn .= "paper" . $doc->paperId . "-" . $o->abbr;
} else {
$fn .= "paper" . $doc->paperId . "-unknown";
}
}
}
}
return $fn . Mimetype::extension($doc->mimetype);
}
function list_actions(Contact $user, $qreq, PaperList $pl, &$actions)
{
$xactions = SearchAction::list_subactions("get", $user, $qreq, $pl);
foreach (PaperOption::option_ids() as $oid) {
if ($pl->any["opt{$oid}"] && ($o = PaperOption::find($oid)) && $o->is_document()) {
$xactions[] = GetDocument_SearchAction::make_option_action($o);
}
}
usort($xactions, function ($a, $b) {
return $a[0] - $b[0];
});
$sel_opt = array();
$last_group = null;
foreach ($xactions as $xact) {
if ($xact[2] !== $last_group) {
$sel_opt[] = ["optgroup", $xact[2]];
$last_group = $xact[2];
}
$sel_opt[] = ["value" => $xact[1], "label" => $xact[3]];
}
if (!empty($sel_opt)) {
$actions[] = [0, "get", "Download", "<b>:</b> " . Ht::select("getfn", $sel_opt, $qreq->getfn, ["tabindex" => 6, "class" => "wantcrpfocus", "style" => "max-width:10em"]) . " " . Ht::submit("fn", "Go", ["value" => "get", "tabindex" => 6, "onclick" => "return plist_submit.call(this)", "data-plist-submit-all" => 1])];
}
}
static function parse_paper_options(PaperInfo $prow, $all)
{
$optionIds = get($prow, "optionIds");
if ($optionIds === "") {
return [];
}
$optsel = array();
if ($optionIds !== null) {
preg_match_all('/(\\d+)#(\\d+)/', $optionIds, $m);
for ($i = 0; $i < count($m[1]); ++$i) {
arrayappend($optsel[$m[1][$i]], (int) $m[2][$i]);
}
$optdata = null;
} else {
$optdata = self::load_optdata($prow->paperId);
foreach ($optdata as $k => $v) {
$dot = strpos($k, ".");
arrayappend($optsel[substr($k, 0, $dot)], (int) substr($k, $dot + 1));
}
}
$option_array = array();
foreach ($optsel as $oid => $ovalues) {
$o = PaperOption::find($oid);
if (!$o && !$all) {
continue;
}
$needs_data = !$o || $o->needs_data();
if ($needs_data && !$optdata) {
$optdata = self::load_optdata($prow->paperId);
}
$odata = [];
if ($needs_data) {
foreach ($ovalues as $v) {
$odata[] = $optdata[$oid . "." . $v];
}
}
$option_array[$oid] = new PaperOptionValue($oid, $o, $ovalues, $odata);
}
uasort($option_array, function ($a, $b) {
if ($a->option && $b->option) {
return PaperOption::compare($a->option, $b->option);
} else {
if ($a->option || $b->option) {
return $a->option ? -1 : 1;
} else {
return $a->id - $b->id;
}
}
});
return $option_array;
}
function perm_view_paper_option(PaperInfo $prow, $opt, $forceShow = null)
{
global $Conf;
if ($this->can_view_paper_option($prow, $opt, $forceShow)) {
return null;
}
if (is_object($opt) && ($opt = PaperOption::find($opt)) && ($whyNot = $this->perm_view_paper($prow, $opt->has_document()))) {
return $whyNot;
}
return array_merge($prow->initial_whynot(), ["permission" => 1]);
}
function document_download()
{
global $Conf, $Me, $Opt;
$documentType = HotCRPDocument::parse_dtype(@$_REQUEST["dt"]);
if ($documentType === null) {
$documentType = @$_REQUEST["final"] ? DTYPE_FINAL : DTYPE_SUBMISSION;
}
$attachment_filename = false;
$docid = null;
if (isset($_REQUEST["p"])) {
$paperId = cvtint(@$_REQUEST["p"]);
} else {
if (isset($_REQUEST["paperId"])) {
$paperId = cvtint(@$_REQUEST["paperId"]);
} else {
$s = $orig_s = preg_replace(',\\A/*,', "", Navigation::path());
$documentType = $dtname = null;
if (str_starts_with($s, $Opt["downloadPrefix"])) {
$s = substr($s, strlen($Opt["downloadPrefix"]));
}
if (preg_match(',\\Ap(?:aper)?(\\d+)/+(.*)\\z,', $s, $m)) {
$paperId = intval($m[1]);
if (preg_match(',\\A([^/]+)\\.[^/]+\\z,', $m[2], $mm)) {
$dtname = $mm[1];
} else {
if (preg_match(',\\A([^/]+)/+(.*)\\z,', $m[2], $mm)) {
list($dtype, $attachment_filename) = array($m[1], $m[2]);
}
}
} else {
if (preg_match(',\\A(?:paper)?(\\d+)-?([-A-Za-z0-9_]*)(?:\\.[^/]+|/+(.*))\\z,', $s, $m)) {
list($paperId, $dtname, $attachment_filename) = array(intval($m[1]), $m[2], @$m[3]);
} else {
if (preg_match(',\\A([A-Za-z_][-A-Za-z0-9_]*?)?-?(\\d+)(?:\\.[^/]+|/+(.*))\\z,', $s, $m)) {
list($paperId, $dtname, $attachment_filename) = array(intval($m[2]), $m[1], @$m[3]);
}
}
}
if ($dtname !== null) {
$documentType = HotCRPDocument::parse_dtype($dtname ?: "paper");
}
if ($documentType !== null && $attachment_filename) {
$o = PaperOption::find($documentType);
if (!$o || $o->type != "attachments") {
$documentType = null;
}
}
}
}
if ($documentType === null) {
document_error("404 Not Found", "Unknown document “" . htmlspecialchars($orig_s) . "”.");
}
$prow = $Conf->paperRow($paperId, $Me, $whyNot);
if (!$prow) {
document_error("404 Not Found", whyNotText($whyNot, "view"));
} else {
if ($whyNot = $Me->perm_view_pdf($prow)) {
document_error("403 Forbidden", whyNotText($whyNot, "view"));
} else {
if ($documentType > 0 && !$Me->can_view_paper_option($prow, $documentType, true)) {
document_error("403 Forbidden", "You don’t have permission to view this document.");
}
}
}
if ($attachment_filename) {
$oa = $prow->option($documentType);
foreach ($oa ? $oa->documents($prow) : array() as $doc) {
if ($doc->unique_filename == $attachment_filename) {
$docid = $doc;
}
}
if (!$docid) {
document_error("404 Not Found", "No such attachment “" . htmlspecialchars($orig_s) . "”.");
}
}
// Actually download paper.
session_write_close();
// to allow concurrent clicks
if ($Conf->downloadPaper($prow, cvtint(@$_REQUEST["save"]) > 0, $documentType, $docid)) {
exit;
}
document_error("500 Server Error", null);
}