Fixes for the BOINC-wide teams site

- the exported team list wasn't parsing due to non-ASCII characters
    in some team descriptions.
    htmlspecialchars() wasn't doing the job.
    Use DOMDocument instead.
- If SHOW_NONVALIDATE_TEAMS is set (as on the BOINC-wide teams site)
    show teams whose founders email addresses are not validated
    (and hence won't be exported).

html/inc/team.inc

@@ -88,6 +88,10 @@ function display_team_page($team, $user) {
     if (strlen($team->description)) {
         row2(tra('Description'), sanitize_html($team->description));
     }
+    row2("Created", date_str($team->create_time));
+    if (defined("SHOW_NONVALIDATED_TEAMS")) {
+        row2("Founder email validated", $user->email_validated?"Yes":"No (team will not be exported)");
+    }
     if (strlen($team->url)) {;
         if (strstr($team->url, "http://")) {
             $x = $team->url;

html/ops/team_export.php

@@ -45,10 +45,21 @@ function escape2($strin) {
 }
 
 function escape($strin) {
-    return htmlspecialchars($strin);
+    $dom = new DOMDocument('1.0');
+    $element = $dom->createElement('Element');
+    $element->appendChild(
+        $dom->createTextNode($strin)
+    );
+
+    $dom->appendChild($element);
+    $x = $dom->saveXml();
+    $x = substr($x, 31);
+    $x = substr($x, 0, -11);
+    return $x;
 }
 
 function handle_team($team, $f) {
+    echo "Team: $team->name\n";
     $user = BoincUser::lookup_id($team->userid);
     if (!$user) {
         echo "no user for team $team->id\n";

html/user/team_search.php

@@ -66,6 +66,11 @@ function show_list($list) {
     echo "
         <tr>
         <th>".tra("Team name")."</th>
+    ";
+    if (defined("SHOW_NONVALIDATED_TEAMS")) {
+        echo "<th>Validated?</th>\n";
+    }
+    echo "
         <th>".tra("Description")."</th>
         <th>".tra("Average credit")."</th>
         <th>".tra("Type")."</th>
@@ -78,6 +83,14 @@ function show_list($list) {
         $j = $i++ % 2;
         echo "<tr class=row$j>
             <td><a href=team_display.php?teamid=$team->id>$team->name</a></td>
+        ";
+        if (defined("SHOW_NONVALIDATED_TEAMS")) {
+            $user = BoincUser::lookup_id($team->userid);
+            echo "<td>";
+            echo $user->email_validated?"Yes":"No";
+            echo "</td>\n";
+        }
+        echo "
             <td><span class=note>".sanitize_html($team->description)."</span></td>
             <td>".format_credit($team->expavg_credit)."</td>
             <td>$type</td>