Sorry, unfortunately submitted internal commits from our adaptation here.

.gitignore

@@ -7,3 +7,4 @@ filestore
 logs
 conf/*
 Code/options.inc
+php_errors.log

.htaccess

@@ -48,3 +48,4 @@ RewriteRule ^[^/]*(/.*)$ %1.php$1 [L,NE]
 # AuthName "HotCRP"
 # AuthUserFile FILENAME
 # Require valid-user
+

etc/listactions.json

@@ -8,6 +8,14 @@
         "name": "__expand/get-document",
         "expand_function": "GetDocument_ListAction::expand2"
     },
+    {
+        "name": "get/acmxml", "get": true,
+        "title": "Paper information/ACM Digital Library XML",
+        "order": 10090,
+        "allow_if": "manager",
+        "function": "+GetACMXML_ListAction",
+        "has_attachments": false
+    },
     {
         "name": "get/json", "get": true,
         "title": "Paper information/JSON",

etc/pages.json

@@ -19,6 +19,46 @@
 
     {   "name": "index", "alias": "home"   },
 
+    {   "name": "imprint", "allow_disabled": true   },
+    {
+        "name": "imprint/sidebar/home", "order": 0,
+        "print_function": "Home_Page::print_homelink"
+    },
+    {
+        "name": "imprint/head", "order": 1000,
+        "print_function": "*Imprint_Page::print_head"
+    },
+    {
+        "name": "imprint/content", "order": 1500,
+        "print_function": "*Imprint_Page::print_content"
+    },
+    {
+        "name": "imprint/sidebar/techinfo", "order": 200,
+        "print_function": "Home_Page::print_techinfo_sidebar"
+    },
+    [   "imprint/sidebar/techinfo/data", 10, "Home_Page::print_techinfo_data"   ],
+    [   "imprint/sidebar/techinfo/imprint", 20, "Home_Page::print_techinfo_imprint"   ],
+
+    {   "name": "dataprivacy", "allow_disabled": true   },
+    {
+        "name": "dataprivacy/sidebar/home", "order": 0,
+        "print_function": "Home_Page::print_homelink"
+    },
+    {
+        "name": "dataprivacy/head", "order": 1000,
+        "print_function": "*Dataprivacy_Page::print_head"
+    },
+    {
+        "name": "dataprivacy/content", "order": 1500,
+        "print_function": "*Dataprivacy_Page::print_content"
+    },
+    {
+        "name": "dataprivacy/sidebar/techinfo", "order": 200,
+        "print_function": "Home_Page::print_techinfo_sidebar"
+    },
+    [   "dataprivacy/sidebar/techinfo/data", 10, "Dataprivacy_Page::print_techinfo_data"   ],
+    [   "dataprivacy/sidebar/techinfo/imprint", 20, "Dataprivacy_Page::print_techinfo_imprint"   ],
+
 
     {   "name": "home", "allow_disabled": true   },
     {
@@ -86,6 +126,12 @@
         "allow_if": "conf.time_all_author_view_decision",
         "print_function": "Home_Page::print_info_accepted"
     },
+    {
+        "name": "home/sidebar/techinfo", "order": 200,
+        "print_function": "Home_Page::print_techinfo_sidebar"
+    },
+    [   "home/sidebar/techinfo/data", 10, "Home_Page::print_techinfo_data"   ],
+    [   "home/sidebar/techinfo/imprint", 20, "Home_Page::print_techinfo_imprint"   ],
 
 
     [   "home/main/message", 1100, "*Home_Page::print_message"   ],
@@ -117,6 +163,10 @@
 
 
     {   "name": "newaccount", "allow_disabled": true   },
+    {
+        "name": "newaccount/sidebar/home", "order": 0,
+        "print_function": "Home_Page::print_homelink"
+    },
     {
         "name": "newaccount/request", "order": 100,
         "allow_request_if": "anypost",
@@ -132,6 +182,10 @@
 
 
     {   "name": "signin", "allow_disabled": true   },
+    {
+        "name": "signin/sidebar/home", "order": 0,
+        "print_function": "Home_Page::print_homelink"
+    },
     {
         "name": "signin/request", "order": 100,
         "allow_request_if": "anypost",
@@ -157,6 +211,10 @@
 
 
     {   "name": "signout", "allow_disabled": true   },
+    {
+        "name": "signout/sidebar/home", "order": 0,
+        "print_function": "Home_Page::print_homelink"
+    },
     {
         "name": "signout/request", "order": 100,
         "allow_request_if": "anypost",
@@ -167,6 +225,10 @@
 
 
     {   "name": "forgotpassword", "allow_disabled": true   },
+    {
+        "name": "forgotpassword/sidebar/home", "order": 0,
+        "print_function": "Home_Page::print_homelink"
+    },
     {
         "name": "forgotpassword/request", "order": 100,
         "allow_request_if": "anypost",
@@ -184,6 +246,10 @@
 
 
     {   "name": "resetpassword", "allow_disabled": true   },
+    {
+        "name": "resetpassword/sidebar/home", "order": 0,
+        "print_function": "Home_Page::print_homelink"
+    },
     {
         "name": "resetpassword/request", "order": 100,
         "request_function": "*Signin_Page::reset_request"

etc/settinggroups.json

@@ -89,7 +89,7 @@
         "name": "submissions/deadlines", "order": 20,
         "separator_before": true,
         "print_function": "Submissions_SettingParser::print_deadlines",
-        "settings": ["submission_registration", "submission_done", "submission_grace"]
+        "settings": ["submission_registration", "submission_done", "submission_allowuntagged", "submission_grace"]
     },
     {
         "name": "submissions/updates", "order": 30,
@@ -139,7 +139,7 @@
         "name": "subform/conflicts", "order": 20,
         "title": "Conflicts and collaborators",
         "print_function": "SubForm_SettingRenderer::print_conflicts",
-        "settings": ["sf_pc_conflicts", "sf_pc_conflict_types", "sf_collaborators", "conflict_description", "conflict_visibility"]
+        "settings": ["sf_pc_conflicts", "sf_pc_conflict_types", "sf_collaborators", "conflict_completelyHide", "conflict_description", "conflict_visibility"]
     },
     {
         "name": "options", "group": "subform", "order": 440,
@@ -208,6 +208,7 @@
         "print_function": "Review_SettingParser::print_pc",
         "settings": [
             "review_self_assign",
+            "review_identity_nevervisible_for_pc",
             "review_identity_visibility_pc",
             "review_visibility_pc",
             "review_visibility_lead",

etc/settinginfo.json

@@ -341,6 +341,11 @@
         "title": "Collect other conflicts and collaborators",
         "type": "checkbox"
     },
+    {
+        "name": "conflict_completelyhide", "storage": "conflict_completelyhide",
+        "title": "Hide submission information (title, abstract and PDF) from PC members with conflict",
+        "type": "checkbox"
+    },
 
 
     {
@@ -522,6 +527,12 @@
         "values": [0, 1, 3, 4], "default_value": 0,
         "json_values": ["assignment_complete", "all", "assignment_not_incomplete", "all_assignments_complete"]
     },
+    {
+        "name": "review_identity_nevervisible_for_pc", "storage": "pc_alwaysblind",
+        "title": "PC can never see anonymous reviewers’ identities (overwrites other related settings)",
+        "type": "radio",
+        "values": [0, 1], "default_value": 0
+    },
     {
         "name": "review_identity_visibility_pc", "storage": "pc_seeblindrev",
         "title": "PC can see anonymous reviewers’ identities",
@@ -862,6 +873,11 @@
         "title": "Submission grace period",
         "type": "grace"
     },
+    {
+        "name": "submission_allowuntagged", "storage": "sub_allowuntagged",
+        "title": "Allow submissions without one of the tags specified below",
+        "type": "checkbox"
+    },
     {
         "name": "submission_open", "storage": "sub_open",
         "title": "Enable submissions",

index.php

@@ -2,6 +2,8 @@
 // index.php -- HotCRP home page
 // Copyright (c) 2006-2022 Eddie Kohler; see LICENSE.
 
+$_SERVER["SERVER_PORT"] = "443";
+
 require_once("lib/navigation.php");
 
 /** @param Contact $user

info.php

@@ -0,0 +1 @@
+<?php phpinfo();

lib/navigation.php

@@ -64,11 +64,11 @@ function __construct($server) {
         }
         $this->protocol = $x;
         $x .= $this->host ? : "localhost";
-        if (($port = $server["SERVER_PORT"])
-            && $port != $xport
-            && strpos($x, ":", 6) === false) {
-            $x .= ":" . $port;
-        }
+        // if (($port = $server["SERVER_PORT"])
+        //     && $port != $xport
+        //     && strpos($x, ":", 6) === false) {
+        //     $x .= ":" . $port;
+        // }
         $this->server = $x;
         $this->request_uri = $server["REQUEST_URI"];
         $pct = strpos($this->request_uri, "%") !== false;

src/contact.php

@@ -4024,6 +4024,8 @@ function can_view_review_identity(PaperInfo $prow, $rbase = null) {
             || ($rbase && $this->is_owned_review($rbase))) {
             return true;
         }
+        if($this->conf->settings["pc_alwaysblind"] ?? null)
+            return false;
         $seerevid_setting = $this->seerevid_setting($prow, $rbase, $rights);
         return ($rights->allow_pc
                 && $seerevid_setting == Conf::PCSEEREV_YES)

src/documentinfo.php

@@ -1538,7 +1538,13 @@ function nwords(CheckFormat $cf = null) {
 
     /** @param array{attachment?:bool,no_accel?:bool,cacheable?:bool} $opts
      * @return bool */
-    function download($opts = []) {
+    function download($opts = [], $user = null) {
+        if(($this->conf->settings["conflict_completelyhide"] ?? null) && $this->prow->conflictType > 0 && $opts["isAuthor"] != 1 && $opts["isPrivChair"] != 1) {
+            http_response_code(403);
+
+            die('Error 403 - Forbidden');
+        }
+
         if ($this->size == 0 && !$this->ensure_size()) {
             $this->message_set()->warning_at(null, "<0>Empty file");
             return false;