web: add option for making user name unique

db/constraints.sql

@@ -12,7 +12,7 @@ alter table user
     add unique(email_addr),
     add unique(authenticator),
     add index ind_tid (teamid),
-    add index user_name(name),
+    add unique(name),
     add index user_tot (total_credit desc),
         -- db_dump.C
     add index user_avg (expavg_credit desc),

html/inc/bootstrap.inc

@@ -81,7 +81,7 @@ function navbar_right($user) {
         if ($user) {
             echo sprintf('
                 <li><a href=%s%s>%s</a></li>
-                ', url_base(), USER_HOME, $user->name
+                ', url_base(), HOME_PAGE, $user->name
             );
             $url_tokens = url_tokens($user->authenticator);
             echo sprintf('<li><a href="%slogout.php?%s">Log out</a></li>',
@@ -156,7 +156,7 @@ function sample_navbar(
 
     $x = array();
     if ($user) {
-        $x[] = array(tra("Account"), $url_prefix.USER_HOME);
+        $x[] = array(tra("Account"), $url_prefix.HOME_PAGE);
         $x[] = array(tra("Join"), $url_prefix."join.php");
         $x[] = array(tra("Preferences"), $url_prefix."prefs.php?subset=project");
     }

html/inc/forum.inc

@@ -809,6 +809,7 @@ function check_banished($user) {
 }
 
 function post_rules() {
+    if (defined('FORUM_RULES')) return FORUM_RULES;
     if (function_exists("project_forum_post_rules")) {
       $project_rules=project_forum_post_rules();
     } else {

html/inc/friend.inc

@@ -1,7 +1,7 @@
 <?php
 // This file is part of BOINC.
 // http://boinc.berkeley.edu
-// Copyright (C) 2008 University of California
+// Copyright (C) 2024 University of California
 //
 // BOINC is free software; you can redistribute it and/or modify it
 // under the terms of the GNU Lesser General Public License
@@ -16,6 +16,8 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with BOINC.  If not, see <http://www.gnu.org/licenses/>.
 
+// code related to 'friend' features
+
 // The following two are what gets put into notification email digests
 //
 function friend_notify_req_email_line($notify) {
@@ -36,9 +38,13 @@ function friend_notify_accept_email_line($notify) {
 function friend_notify_req_web_line($notify) {
     $user = BoincUser::lookup_id($notify->opaque);
     if (!$user) return null;
-    return "
-        <a href=friend.php?action=query&userid=$notify->opaque>Friendship request</a> from <a href=show_user.php?userid=$user->id>$user->name</a>
-    ";
+    return sprintf(
+        '<a href=friend.php?action=query&userid=%d>Friendship request</a> from <a href=%s?userid=%d>%s</a>',
+        $notify->opaque,
+        SHOW_USER_PAGE,
+        $user->id,
+        $user->name
+    );
 }
 
 function friend_notify_accept_web_line($notify) {
@@ -61,7 +67,7 @@ $src_user->name says: $msg
 
     $message .= "
 Please accept or decline by visiting
-".secure_url_base().USER_HOME."
+".secure_url_base().HOME_PAGE."
 
 --------------------------
 To change email preferences, visit:
@@ -83,7 +89,7 @@ $dest_user->name says: $msg
 
     $message .= "
 Visit your Account page at
-".secure_url_base().USER_HOME."
+".secure_url_base().HOME_PAGE."
 
 --------------------------
 To change email preferences, visit:
@@ -112,7 +118,7 @@ function friend_accept_rss($notify, &$title, &$msg, &$url) {
     }
     $title = "Friendship confirmation";
     $msg = "$src_user->name has confirmed you as a friend";
-    $url = secure_url_base().USER_HOME;
+    $url = secure_url_base().HOME_PAGE;
 }
 
 // delete friendship connections

html/inc/more.inc

@@ -31,6 +31,7 @@ function show_text_more($text, $nchars) {
 //
 function show_text_more_aux($text, $nchars) {
     static $count = 0;
+    if (!$text) return '';
 
     $n = strlen($text);
     if ($n < $nchars) {

html/inc/pm.inc

@@ -28,6 +28,7 @@ function pm_header() {
 }
 
 function pm_rules() {
+    if (defined('PM_RULES')) return PM_RULES;
     $x = "<table><tr><td align=left><small>";
     $x .= tra("
         <ul>
@@ -113,8 +114,8 @@ function pm_form($replyto, $userid, $error = null) {
         );
     }
 
-    $subject = null;
-    $content = null;
+    $subject = '';
+    $content = '';
     if ($replyto) {
         $message = BoincPrivateMessage::lookup_id($replyto);
         if (!$message || $message->userid != $g_logged_in_user->id) {
@@ -126,7 +127,7 @@ function pm_form($replyto, $userid, $error = null) {
         if (!$user) {
             error_page("Sender no longer exists");
         }
-        $writeto = $userid." (".$user->name.")";
+        $writeto = UNIQUE_USER_NAME?$user->name:$userid." (".$user->name.")";
         $subject = $message->subject;
         if (substr($subject, 0, 3) != "re:") {
             $subject = "re: ".$subject;
@@ -136,7 +137,7 @@ function pm_form($replyto, $userid, $error = null) {
         if (!$user) {
             error_page("Sender no longer exists");
         }
-        $writeto = $userid." (".$user->name.")";
+        $writeto = UNIQUE_USER_NAME?$user->name:$userid." (".$user->name.")";
     } else {
         $writeto = sanitize_tags(post_str("to", true));
         $subject = post_str("subject", true);
@@ -154,7 +155,13 @@ function pm_form($replyto, $userid, $error = null) {
     echo "<input type=\"hidden\" name=\"action\" value=\"send\">\n";
     echo form_tokens($g_logged_in_user->authenticator);
     start_table();
-    row2(tra("To")."<br /><small>".tra("User IDs or unique usernames, separated with commas")."</small>",
+    row2(
+        sprintf('%s <br><small>%s</small>',
+            tra("To"),
+            UNIQUE_USER_NAME
+                ?tra('User names, separated with commas')
+                :tra("User IDs or unique usernames, separated with commas")
+        ),
         "<input type=\"text\" class=\"form-control\" name=\"to\" value=\"$writeto\">",
         null, '20%'
     );

html/inc/user.inc

@@ -286,7 +286,9 @@ function show_user_info_private($user) {
             .$delete_account_str
         );
     }
-    row2(tra("User ID")."<br/><p class=\"small\">".tra("Used in community functions")."</p>", $user->id);
+    if (!UNIQUE_USER_NAME) {
+        row2(tra("User ID")."<br/><p class=\"small\">".tra("Used in community functions")."</p>", $user->id);
+    }
     if (!NO_COMPUTING) {
         row2(
             tra("Account keys"),
@@ -323,27 +325,41 @@ function show_preference_links() {
     }
 }
 
+// return describing a friend: their name, and profile picture if it exists
+//
 function friend_links($user) {
     if (is_banished($user)) {
         return "";
     }
-    $x = "<table height=\"100\" width=\"150\" border=\"0\" cellpadding=\"4\"><tr><td class=\"friend\">";
+    $x = sprintf(
+        '<a href="%s%s?userid=%d" style="%s">%s</a>',
+        url_base(),
+        SHOW_USER_PAGE,
+        $user->id,
+        'vertical-align:top',
+        $user->name
+    );
     if ($user->has_profile) {
         $profile = BoincProfile::lookup_fields("has_picture", "userid=$user->id");
         if ($profile && $profile->has_picture) {
             $img_url = profile_thumb_url($user->id);
         } else {
             $img_url = url_base()."img/head_20.png";
         }
-        $title = tra("View the profile of %1", $user->name);
         $alt = tra("Profile");
-        $x .= ' <a href="'.url_base().'view_profile.php?userid='.$user->id.'"><img title="'.$title.'" src="'.$img_url.'" alt="'.$alt.'"></a><br>';
+        $x .= sprintf(
+            '<a href="%sview_profile.php?userid=%d"><img title="%s" src="%s" alt="%s"></a><br>',
+            url_base(),
+            $user->id,
+            tra("View the profile of %1", $user->name),
+            $img_url,
+            tra("Profile")
+        );
     }
-    $x .= " <a href=\"".url_base()."show_user.php?userid=".$user->id."\">".$user->name."</a>";
     if (function_exists("project_user_links")) {
         $x .= project_user_links($user);
     }
-    $x .= "</td></tr></table>\n";
+    $x .= '</div>';
     return $x;
 }
 
@@ -359,13 +375,26 @@ function user_links($user, $badge_height=0, $name_limit=0) {
     $x = "";
     if ($user->has_profile) {
         $img_url = url_base()."img/head_20.png";
-        $x .= ' <a href="'.url_base().'view_profile.php?userid='.$user->id.'"><img title="View the profile of '.$user->name.'" src="'.$img_url.'" alt="Profile"></a>';
+        $x .= sprintf(
+            ' <a href="%s%s?userid=%d"><img title="View the profile of %s" src="%s" alt="Profile"></a>',
+            url_base(),
+            'view_profile.php',
+            $user->id,
+            $user->name,
+            $img_url
+        );
     }
     $name = $user->name;
     if ($name_limit && strlen($name) > $name_limit) {
         $name = substr($name, 0, $name_limit)."...";
     }
-    $x .= " <a href=\"".url_base()."show_user.php?userid=".$user->id."\">".$name."</a>";
+    $x .= sprintf(
+        '<a href="%s%s?userid=%d">%s</a>',
+        url_base(),
+        SHOW_USER_PAGE,
+        $user->id,
+        $name
+    );
     if (function_exists("project_user_links")){
         $x .= project_user_links($user);
     }
@@ -441,25 +470,26 @@ function show_community_private($user) {
     }
 
     $friends = BoincFriend::enum("user_src=$user->id and reciprocated=1");
-    $x = "<a href=\"user_search.php\">".tra("Find friends")."</a><br/>\n";
-    $n = count($friends);
-    if ($n) {
+    $x = '';
+    if ($friends) {
         foreach($friends as $friend) {
             $fuser = BoincUser::lookup_id($friend->user_dest);
             if (!$fuser) continue;
             $x .= friend_links($fuser);
         }
-        row2(tra("Friends")." ($n)", $x);
-    } else {
         row2(tra("Friends"), $x);
+    } else {
+        row2(tra("Friends"), '---');
     }
 }
 
 // show summary of dynamic and static info (public)
 //
 function show_user_summary_public($user) {
     global $g_logged_in_user;
-    row2(tra("User ID"), $user->id);
+    if (!UNIQUE_USER_NAME) {
+        row2(tra("User ID"), $user->id);
+    }
     row2(tra("%1 member since", PROJECT), date_str($user->create_time));
     if (USER_COUNTRY) {
         row2(tra("Country"), $user->country);
@@ -505,6 +535,8 @@ function get_community_links_object($user){
     return $cache_object;
 }
 
+// show community links of another user (described by $clo)
+//
 function community_links($clo, $logged_in_user){
     $user = $clo->user;
     $team = $clo->team;
@@ -538,11 +570,11 @@ function community_links($clo, $logged_in_user){
     }
 
     if ($friends) {
-        $x = "";
+        $x = '';
         foreach($friends as $friend) {
             $x .= friend_links($friend);
         }
-        row2(tra("Friends")." (".sizeof($friends).")", $x);
+        row2(tra('Friends'), $x);
     }
 }
 

html/inc/user_util.inc

@@ -90,6 +90,10 @@ function is_valid_user_name($name, &$reason) {
         $reason = tra("user name may not contain HTML tags");
         return false;
     }
+    if (is_numeric($name)) {
+        $reason = tra("user name may not be a number");
+        return false;
+    }
     return true;
 }
 
@@ -228,6 +232,23 @@ function validate_post_make_user() {
     if (!is_valid_user_name($new_name, $reason)) {
         show_error($reason);
     }
+    if (UNIQUE_USER_NAME) {
+        $u = BoincUser::lookup_name($new_name);
+        if ($u) {
+            page_head("That name is in use");
+            echo "<p>The following user names are taken;
+                please go back and use a different one.<p>
+            ";
+            $users = BoincUser::enum(
+                sprintf("name like '%s%%'", $new_name)
+            );
+            foreach ($users as $u){
+                echo "<p>$u->name\n";
+            }
+            page_tail();
+            exit;
+        }
+    }
 
     $new_email_addr = strtolower(post_str("new_email_addr"));
     if (!is_valid_email_addr($new_email_addr)) {

html/inc/util.inc

@@ -91,9 +91,21 @@ if (!defined('NO_STATS')) {
 if (!defined('NO_GLOBAL_PREFS')) {
     define('NO_GLOBAL_PREFS', false);
 }
-if (!defined('USER_HOME')) {
-    define('USER_HOME', 'home.php');
+
+// the 'home page' of the logged-in user.
+// go here after login, account creation, team operations, etc.
+//
+if (!defined('HOME_PAGE')) {
+    define('HOME_PAGE', 'home.php');
+}
+
+// the page showing another user.
+// Link to here wherever we show a user name.
+//
+if (!defined('SHOW_USER_PAGE')) {
+    define('SHOW_USER_PAGE', 'show_user.php');
 }
+
 if (!defined('POST_MAX_LINKS')) {
     define('POST_MAX_LINKS', 0);
 }
@@ -103,6 +115,9 @@ if (!defined('DARK_MODE')) {
 if (!defined('VALIDATE_EMAIL_TO_POST')) {
     define('VALIDATE_EMAIL_TO_POST', false);
 }
+if (!defined('UNIQUE_USER_NAME')) {
+    define('UNIQUE_USER_NAME', false);
+}
 
 // don't allow anything between .php and ? in URL
 //
@@ -550,10 +565,13 @@ function rowify($string) {
     echo "<tr><td>$string</td></tr>";
 }
 
-function row_array($x) {
+function row_array($x, $attrs=null) {
     echo "<tr>\n";
+    $i = 0;
     foreach ($x as $h) {
-        echo "<td>$h</td>\n";
+        $a = $attrs?$attrs[$i]:"";
+        echo "<td $a>$h</td>\n";
+        $i++;
     }
     echo "</tr>\n";
 }

html/project.sample/project.inc

@@ -47,6 +47,7 @@ display_errors();
 
 //-------------- enable/disable web features
 
+define('UNIQUE_USER_NAME', true);
 define("FORUM_QA_MERGED_MODE", true);
     // Set to true to merge Message boards and Q&A section
 define ("DISABLE_PROFILES", true);