--- loncom/loncron	2000/12/23 16:56:46	1.11
+++ loncom/loncron	2001/09/04 17:58:44	1.23
@@ -9,12 +9,20 @@
 #
 # 7/14,7/15,7/19,7/21,7/22,11/18,
 # 2/8 Gerd Kortemeyer
-# Dec 00 Scott Harrison
+# 12/6/2000,12/8 Scott Harrison
 # 12/23 Gerd Kortemeyer
+# YEAR=2001
+# 1/10/2001, 2/12/, 2/26, 3/15, 04/11, 04/21,8/27 Scott Harrison
 
 use IO::File;
 use IO::Socket;
 
+my $qflag=0;
+if (@ARGV) {
+    my $arg=shift @ARGV;
+    $qflag=1 if $arg eq 'quick';
+}
+
 # -------------------------------------------------- Non-critical communication
 sub reply {
     my ($cmd,$server)=@_;
@@ -45,7 +53,6 @@ ENDERROUT
 
 # ================================================================ Main Program
 
-
 # ------------------------------------------------------------ Read access.conf
 {
     my $config=IO::File->new("/etc/httpd/conf/access.conf");
@@ -56,6 +63,33 @@ ENDERROUT
            $perlvar{$varname}=$varvalue;
         }
     }
+    delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
+    delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
+}
+
+# --------------------------------------- Make sure that LON-CAPA is configured
+# I only test for one thing here (lonHostID).  This is just a safeguard.
+if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
+   print("Unconfigured machine.\n");
+   $emailto=$perlvar{'lonSysEMail'};
+   $hostname=`/bin/hostname`;
+   chop $hostname;
+   $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
+   $subj="LON: Unconfigured machine $hostname";
+   system("echo 'Unconfigured machine $hostname.' |\
+ mailto $emailto -s '$subj' > /dev/null");
+    exit 1;
+}
+
+# ----------------------------- Make sure this process is running from user=www
+my $wwwid=getpwnam('www');
+if ($wwwid!=$<) {
+   print("User ID mismatch.  This program must be run as user 'www'\n");
+   $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
+   $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
+   system("echo 'User ID mismatch.  loncron must be run as user www.' |\
+ mailto $emailto -s '$subj' > /dev/null");
+   exit 1;
 }
 
 # ------------------------------------------------------------- Read hosts file
@@ -233,13 +267,13 @@ print $fh "<h3>$active open session(s)</
 
 print $fh '<hr><a name="httpd"><h2>httpd</h2><h3>Access Log</h3><pre>';
 
-open (DFH,"tail -n40 /etc/httpd/logs/access_log|");
+open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
 while ($line=<DFH>) { print $fh "$line" };
 close (DFH);
 
 print $fh "</pre><h3>Error Log</h3><pre>";
 
-open (DFH,"tail -n50 /etc/httpd/logs/error_log|");
+open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
 while ($line=<DFH>) { 
    print $fh "$line";
    if ($line=~/\[error\]/) { $notices++; } 
@@ -250,13 +284,12 @@ print $fh "</pre>";
 
 
 # ---------------------------------------------------------------------- lonsql
-#
-# Do not run for now
-#
-if ($perlvar{'lonRole'} eq "library" && 1==0) {
+
+my $restartflag=1;
+if ($perlvar{'lonRole'} eq "library") {
 
     print $fh '<hr><a name="lonsql"><h2>lonsql</h2><h3>Log</h3><pre>';
-    
+    print "lonsql\n";
     if (-e "$perlvar{'lonDaemons'}/logs/lonsql.log"){
 	open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonsql.log|");
 	while ($line=<DFH>) { 
@@ -270,36 +303,51 @@ if ($perlvar{'lonRole'} eq "library" &&
     print $fh "</pre>";
     
     my $lonsqlfile="$perlvar{'lonDaemons'}/logs/lonsql.pid";
-    
+ 
+    $restartflag=1;
+   
     if (-e $lonsqlfile) {
 	my $lfh=IO::File->new("$lonsqlfile");
 	my $lonsqlpid=<$lfh>;
 	chomp($lonsqlpid);
 	if (kill 0 => $lonsqlpid) {
 	    print $fh "<h3>lonsql at pid $lonsqlpid responding</h3>";
+	    $restartflag=0;
 	} else {
 	    $errors++; $errors++;
 	    print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";
+		$restartflag=1;
+	print $fh 
+	    "<h3>Decided to clean up stale .pid file and restart lonsql</h3>";
 	}
-    } else {
+    }
+    if ($restartflag==1) {
 	$errors++;
+	         print $fh '<br><font color="red">Killall lonsql: '.
+                    system('killall lonsql').' - ';
+                    sleep 60;
+                    print $fh unlink($lonsqlfile).' - '.
+                              system('killall -9 lonsql').
+                    '</font><br>';
 	print $fh "<h3>lonsql not running, trying to start</h3>";
-	system("$perlvar{'lonDaemons'}/lonsql");
-	sleep 120;
+	system(
+ "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
+	sleep 120 unless $qflag;
 	if (-e $lonsqlfile) {
 	    print $fh "Seems like it started ...<p>";
 	    my $lfh=IO::File->new("$lonsqlfile");
 	    my $lonsqlpid=<$lfh>;
 	    chomp($lonsqlpid);
-	    sleep 30;
+	    sleep 30 unless $qflag;
 	    if (kill 0 => $lonsqlpid) {
 		print $fh "<h3>lonsql at pid $lonsqlpid responding</h3>";
 	    } else {
 		$errors++; $errors++;
 		print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";
 		print $fh "Give it one more try ...<p>";
-		system("$perlvar{'lonDaemons'}/lonsql");
-		sleep 120;
+		system(
+ "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
+		sleep 120 unless $qflag;
 	    }
 	} else {
 	    print $fh "Seems like that did not work!<p>";
@@ -337,9 +385,10 @@ if ($perlvar{'lonRole'} eq "library" &&
 # ------------------------------------------------------------------------ lond
 
 print $fh '<hr><a name="lond"><h2>lond</h2><h3>Log</h3><pre>';
+print "lond\n";
 
 if (-e "$perlvar{'lonDaemons'}/logs/lond.log"){
-open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lond.log|");
+open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/lond.log|");
 while ($line=<DFH>) { 
    print $fh "$line";
    if ($line=~/INFO/) { $notices++; }
@@ -352,7 +401,7 @@ print $fh "</pre>";
 
 my $londfile="$perlvar{'lonDaemons'}/logs/lond.pid";
 
-my $restartflag=1;
+$restartflag=1;
 if (-e $londfile) {    
    my $lfh=IO::File->new("$londfile");
    my $londpid=<$lfh>;
@@ -363,44 +412,37 @@ if (-e $londfile) {
    } else {
       $errors++;
       print $fh "<h3>lond at pid $londpid not responding</h3>";
-      # Intelligently handle this.
-      # Possibility #1: there is no process
-      # Solution: remove .pid file and restart
-      if (getpgrp($londpid)==-1) {
-	  unlink($londfile);
-	  $restartflag=1;
-      }
-      else {
-      # Possibility #2: there is a live process that is not responding
-      #                 for an unknown reason
-      # Solution: kill parent and children processes, remove .pid and restart
-	  `killall -9 lond`;
-	  unlink($londfile);
-	  $restartflag=1;
-      }
+      $restartflag=1;
       print $fh 
-	  "<h3>Deciding to clean up stale .pid file and restart lond</h3>";
+	  "<h3>Decided to clean up stale .pid file and restart lond</h3>";
    }
 } 
 if ($restartflag==1) {
    $errors++;
+	  print $fh '<br><font color="red">Killall lond: '.
+                    system('killall lond').' - ';
+          sleep 60;
+          print $fh unlink($londfile).' - '.system('killall -9 lond').
+                    '</font><br>';
    print $fh "<h3>lond not running, trying to start</h3>";
-   system("$perlvar{'lonDaemons'}/lond");
-   sleep 120;
+   system(
+     "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
+   sleep 120 unless $qflag;
    if (-e $londfile) {
        print $fh "Seems like it started ...<p>";
        my $lfh=IO::File->new("$londfile");
        my $londpid=<$lfh>;
        chomp($londpid);
-       sleep 30;
+       sleep 30 unless $qflag;
        if (kill 0 => $londpid) {
           print $fh "<h3>lond at pid $londpid responding</h3>";
        } else {
           $errors++; $errors++;
           print $fh "<h3>lond at pid $londpid not responding</h3>";
           print $fh "Give it one more try ...<p>";
-          system("$perlvar{'lonDaemons'}/lond");
-          sleep 120;
+	  system(
+ "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
+          sleep 120 unless $qflag;
        }
    } else {
        print $fh "Seems like that did not work!<p>";
@@ -437,9 +479,10 @@ if ($size>40000) {
 # ------------------------------------------------------------------------ lonc
 
 print $fh '<hr><a name="lonc"><h2>lonc</h2><h3>Log</h3><pre>';
+print "lonc\n";
 
 if (-e "$perlvar{'lonDaemons'}/logs/lonc.log"){
-open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonc.log|");
+open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/lonc.log|");
 while ($line=<DFH>) { 
    print $fh "$line";
    if ($line=~/INFO/) { $notices++; }
@@ -464,44 +507,38 @@ if (-e $loncfile) {
    } else {
       $errors++;
       print $fh "<h3>lonc at pid $loncpid not responding</h3>";
-      # Intelligently handle this.
-      # Possibility #1: there is no process
-      # Solution: remove .pid file and restart
-      if (getpgrp($loncpid)==-1) {
-	  unlink($loncfile);
-	  $restartflag=1;
-      }
-      else {
-      # Possibility #2: there is a live process that is not responding
-      #                 for an unknown reason
       # Solution: kill parent and children processes, remove .pid and restart
-	  `killall -9 lonc`;
-	  unlink($loncfile);
 	  $restartflag=1;
-      }
       print $fh 
-	  "<h3>Deciding to clean up stale .pid file and restart lonc</h3>";
+	  "<h3>Decided to clean up stale .pid file and restart lonc</h3>";
    }
 } 
 if ($restartflag==1) {
    $errors++;
+	  print $fh '<br><font color="red">Killall lonc: '.
+	            system('killall lonc').' - ';
+          sleep 60;
+          print $fh unlink($loncfile).' - '.system('killall -9 lonc').
+                    '</font><br>';
    print $fh "<h3>lonc not running, trying to start</h3>";
-   system("$perlvar{'lonDaemons'}/lonc");
-   sleep 120;
+	system(
+ "$perlvar{'lonDaemons'}/lonc 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
+   sleep 120 unless $qflag;
    if (-e $loncfile) {
        print $fh "Seems like it started ...<p>";
        my $lfh=IO::File->new("$loncfile");
        my $loncpid=<$lfh>;
        chomp($loncpid);
-       sleep 30;
+       sleep 30 unless $qflag;
        if (kill 0 => $loncpid) {
           print $fh "<h3>lonc at pid $loncpid responding</h3>";
        } else {
           $errors++; $errors++;
           print $fh "<h3>lonc at pid $loncpid not responding</h3>";
           print $fh "Give it one more try ...<p>";
-          system("$perlvar{'lonDaemons'}/lonc");
-          sleep 120;
+ 	  system(
+ "$perlvar{'lonDaemons'}/lonc 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
+          sleep 120 unless $qflag;
        }
    } else {
        print $fh "Seems like that did not work!<p>";
@@ -539,6 +576,7 @@ if ($size>40000) {
 # ---------------------------------------------------------------------- lonnet
 
 print $fh '<hr><a name="lonnet"><h2>lonnet</h2><h3>Temp Log</h3><pre>';
+print "lonnet\n";
 if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
 open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
 while ($line=<DFH>) { 
@@ -596,6 +634,7 @@ print $fh "</table>";
 # ------------------------------------------------------------ Delayed messages
 
 print $fh '<hr><a name="delayed"><h2>Delayed Messages</h2>';
+print "buffers\n";
 
 print $fh '<h3>Scanning Permanent Log</h3>';
 
@@ -632,16 +671,18 @@ print $fh "<h1>Total Error Count: $total
 $now=time;
 $date=localtime($now);
 print $fh "<hr>$date ($now)</body></html>\n";
-
+print "writing done\n";
 }
 
 rename ("$statusdir/newstatus.html","$statusdir/index.html");
 
 if ($totalcount>200) {
+   print "mailing\n";
    $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
    $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices"; 
    system(
- "metasend -b -t $emailto -s '$subj' -f $statusdir/index.html -m text/html");
+ "metasend -b -t $emailto -s '$subj' -f $statusdir/index.html -m text/html")
+    unless $qflag;
 }
 1;