[LON-CAPA-cvs] cvs: loncom /debugging_tools move_construction_spaces.pl

raeburn raeburn at source.lon-capa.org
Wed Oct 26 23:31:50 EDT 2011


raeburn		Thu Oct 27 03:31:50 2011 EDT

  Modified files:              
    /loncom/debugging_tools	move_construction_spaces.pl 
  Log:
  - Add LON-CAPA boilerplate (GPL etc.).
  - Check if Apache is running -- if so provide directions on stopping httpd, and exit.
  - Check if lond is running -- if so provide directions on stopping loncontrol, and exit.
  - Add logging to /home/httpd/perl/logs/move_construction_spaces.log
  - Moving from /home to /home/httpd/html/priv
    - Checks for "restore_O.sh" files in /home/<user> created by lchtmldir
      - writes content to /home/httpd/perl/logs/move_construction_spaces/<domain>/<user>
      - unlinks restore_O.sh file
    - Removes empty /home/<user> directory unless <user> has UNIX account on the server.
  
  
-------------- next part --------------
Index: loncom/debugging_tools/move_construction_spaces.pl
diff -u loncom/debugging_tools/move_construction_spaces.pl:1.2 loncom/debugging_tools/move_construction_spaces.pl:1.3
--- loncom/debugging_tools/move_construction_spaces.pl:1.2	Wed Oct 26 17:35:10 2011
+++ loncom/debugging_tools/move_construction_spaces.pl	Thu Oct 27 03:31:50 2011
@@ -1,8 +1,35 @@
 #!/usr/bin/perl
 #
+# The LearningOnline Network
+#
 # Move Construction Spaces from /home/$user/public_html
 # to /home/httpd/html/priv/$domain/$user and vice versa
-# 
+#
+# $Id: move_construction_spaces.pl,v 1.3 2011/10/27 03:31:50 raeburn Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+#################################################
 
 use strict;
 use lib '/home/httpd/lib/perl/';
@@ -16,19 +43,89 @@
 &Apache::lonlocal::get_language_handle(undef,$lang);
 
 if ($< != 0) {
-    print(&mt('You must be root in order to move Construction Spaces.').
-         "\n");
+    print &mt('You must be root in order to move Construction Spaces.')."\n".
+          &mt('Stopping')."\n";
     exit;
 }
 
 my $perlvar=&LONCAPA::Configuration::read_conf();
-my ($lonuserdir,$londocroot);
+my ($lonuserdir,$londocroot,$londaemons);
 if (ref($perlvar) eq 'HASH') {
     $lonuserdir = $perlvar->{'lonUsersDir'};
     $londocroot = $perlvar->{'lonDocRoot'};
+    $londaemons = $perlvar->{'lonDaemons'};
 }
 undef($perlvar);
 
+my $distro;
+if ($londaemons ne '') {
+    if (-e "$londaemons/distprobe") {
+        if (open(PIPE,"perl $londaemons/distprobe|")) {
+            $distro = <PIPE>;
+            close(PIPE);
+        }
+    }
+} else {
+    print &mt('Could not determine location of [_1] directory.',"'lonDaemons'")."\n".
+          &mt('Stopping')."\n";
+    exit; 
+}
+
+if ($distro eq '') {
+    print &mt('Could not determine Linux distro.')."\n".
+          &mt('Stopping')."\n";
+    exit;
+} else {
+    my $stopapachecmd = '/etc/init.d/httpd stop';
+    my $apacheprocess = '/usr/sbin/httpd';
+    my $stopapachecmd = '/etc/init.d/httpd stop';
+    my $proc_owner = 'root';
+    if ($distro =~ /^(suse|sles)/) {
+        if ($distro =~ /^(suse|sles)9/) {
+            $stopapachecmd = '/etc/init.d/apache stop';
+        } else {
+            $apacheprocess = '/usr/sbin/httpd2';
+            $stopapachecmd = '/etc/init.d/apache2 stop';
+        }
+    } elsif ($distro =~ /^(?:debian|ubuntu)(\d+)/) {
+        $apacheprocess = '/usr/sbin/apache2';
+        $stopapachecmd = '/etc/init.d/apache2 stop';
+    } elsif ($distro =~ /^(?:fedora)(\d+)/) {
+        my $version = $1;
+        if ($version >= 16) {
+            $stopapachecmd = '/bin/systemctl stop httpd.service';
+        }
+    }
+    if (open(PIPE,"ps -ef |grep '$apacheprocess' |grep -v grep 2>&1 |")) {
+        my $status = <PIPE>;
+        close(PIPE);
+        chomp($status);
+        if ($status =~ /^\Q$proc_owner\E\s+\d+\s+/) {
+            print "\n".
+                  &mt('You need to stop the Apache daemon before moving Construction Spaces.')."\n".
+                  &mt('To do so use the following command: [_1]',"\n\n$stopapachecmd")."\n\n".
+                  &mt('Now stopping the move_construction_spaces.pl script.')."\n";
+            exit;
+        }
+    } else {
+        print &mt('Could not determine if Apache daemon is running.')."\n";
+    }
+}
+
+my $stoploncontrol = '/etc/init.d/loncontrol stop';
+if (open(PIPE,"ps -ef |grep lond |grep -v grep 2>&1 |")) {
+    my $status = <PIPE>;
+    close(PIPE);
+    chomp($status);
+    if ($status =~ /^www\s+\d+\s+/) {
+        print "\n".
+              &mt('You need to stop the LON-CAPA daemons before moving Construction Spaces.')."\n".
+              &mt('To do so use the following command: [_1]',"\n\n$stoploncontrol")."\n\n".
+              &mt('Now stopping the move_construction_spaces.pl script.')."\n";
+        exit;        
+    }
+}
+
 # Abort if more than one argument.
 
 my $parameter=$ARGV[0];
@@ -68,17 +165,19 @@
 
 if ($action eq 'dryrun') {
     print "\n".
-          &mt('Running in exploratory mode.')."\n".
+          &mt('Running in exploratory mode ...')."\n\n".
           &mt('Run with argument [_1] to actually move Construction Spaces to [_2], i.e., [_3]',
-              "'move'","'$londocroot/priv'","\nperl move_construction_spaces.pl move")."\n\n".
+              "'move'","'$londocroot/priv'","\n\nperl move_construction_spaces.pl move")."\n\n\n".
           &mt('Run with argument [_1] to move Construction spaces back to [_2], i.e., [_3]',
-              "'undo'","'/home'","\nperl move_construction_spaces.pl undo")."\n\n".
+              "'undo'","'/home'","\n\nperl move_construction_spaces.pl undo")."\n\n\n".
           &mt('Continue? ~[y/N~] ');
     if (!&get_user_selection()) {
         exit;
+    } else {
+        print "\n";
     }
 } else {
-    print "\n ***".&mt('Running in a mode where changes will be made.')."\n";
+    print "\n *** ".&mt('Running in a mode where changes will be made.')." ***\n";
     if ($action eq 'move') {
         print "\n".
               &mt('Mode is [_1] -- directories will be moved to [_2].',
@@ -91,6 +190,19 @@
     print &mt('Continue? ~[y/N~] ');
     if (!&get_user_selection()) {
         exit;
+    } else {
+        print "\n";
+    }
+}
+
+my $logfh;
+if ($action ne 'dryrun') {
+    if (!open($logfh,">>$londaemons/logs/move_construction_spaces.log")) {
+        print &mt('Could not open log file: [_1] for writing.',
+                  "'$londaemons/logs/move_construction_spaces.log'")."\n".
+              &mt('Stopping.')."\n";
+    } else {
+        &start_logging($logfh,$action);
     }
 }
 
@@ -99,25 +211,32 @@
 my %pubusers;
 
 if ($action eq 'move') {
+    my $output;
     if (-d "$londocroot/priv") {
-        print "\n".
-              &mt('New Construction Spaces directory: [_1] already exists.',
-                  "'$londocroot/priv'")."\n";
+        $output = &mt('New Construction Spaces directory: [_1] already exists.',
+                      "'$londocroot/priv'")."\n";
+        print $output;
+        print $logfh $output;
     } else {
-        print "\n".
-              &mt('Creating new directory: [_1] for Construction Spaces.',
-                  "'$londocroot/priv'")."\n";
-        if (mkdir("$londocroot/priv",0755)) {
+        $output = &mt('Creating new directory: [_1] for Construction Spaces.',
+                      "'$londocroot/priv'")."\n";
+        if (mkdir("$londocroot/priv",0750)) {
             if (chown($uid,$gid,"$londocroot/priv")) {
-                print &mt('Creation Successful')."\n";
+                $output .= &mt('Creation Successful')."\n";
+                print $output;
+                print $logfh $output;
             } else {
-                print &mt('Failed to change ownership to [_1].',"'$uid:$gid'")."\n".
-                &mt('Stopping')."\n";
+                $output .= &mt('Failed to change ownership to [_1].',"'$uid:$gid'")."\n";
+                print $output;
+                &stop_logging($logfh,$output);
+                print &mt('Stopping')."\n";
                 exit;
             }
         } else {
-            print &mt('Failed to create directory [_1].',"'$londocroot/priv'")."\n".
-                  &mt('Stopping')."\n";
+            $output .=  &mt('Failed to create directory [_1].',"'$londocroot/priv'")."\n";
+            print $output;
+            &stop_logging($logfh,$output);
+            print &mt('Stopping')."\n";
             exit;
         }
     }
@@ -125,7 +244,7 @@
 
 my @machinedoms;
 if ($lonuserdir) {
-    my $dir;
+    my ($dir,$output);
     if (opendir($dir,$lonuserdir)) {
         my @contents = (grep(!/^\.{1,2}$/,readdir($dir)));
         foreach my $item (@contents) {
@@ -140,10 +259,15 @@
                         if (!-e $dom_target) {
                             if (mkdir($dom_target,0755)) {
                                 chown($uid,$gid,$dom_target);
-                                print &mt('Made [_1].',"'$dom_target'")."\n";
+                                $output = &mt('Made [_1].',"'$dom_target'")."\n";
+                                print $output;
+                                print $logfh $output;
                             } else {
-                                print &mt('Failed to make [_1].',"'$dom_target'")."\n".
-                                      &mt('Stopping')."\n";
+                                $output = &mt('Failed to make [_1].',"'$dom_target'")."\n";
+                                print $output;
+                                print $logfh $output;
+                                &stop_logging($logfh,$output);
+                                print &mt('Stopping')."\n";
                                 exit;
                             }
                         } elsif ($action eq 'dryrun') {
@@ -172,8 +296,10 @@
         }
         closedir($dir);
     } else {
-        print &mt('Could not open [_1].',"'$lonuserdir'")."\n".
-              &mt('Stopping')."\n";
+        $output = &mt('Could not open [_1].',"'$lonuserdir'")."\n";
+        print $output;
+        &stop_logging($logfh,$output);
+        print &mt('Stopping')."\n";
         exit;
     }
 }
@@ -232,21 +358,31 @@
                 my $choice=<STDIN>;
                 chomp($choice);
                 if (grep(/^\Q$choice\E$/,@{$privspaces{$uname}})) {
-                    &move_priv_to_home($londocroot,$uname,$choice);
+                    my $output = &move_priv_to_home($londocroot,$uid,$gid,$uname,$choice);
+                    print $output;
+                    print $logfh $output;
                 } else {
-                    print &mt('Invalid choice of domain:')." $choice\n".
-                          &mt('Skipping this user: [_1].',"'$uname'")."\n";
+                    print &mt('Invalid choice of domain:')." $choice\n";
+                    my $output = &mt('Skipping this user: [_1].',"'$uname'")."\n";
+                    print $output;
+                    print $logfh $output;
                     next;
                 }
             } elsif (@{$privspaces{$uname}} == 1) {
-                    &move_priv_to_home($londocroot,$uname,$privspaces{$uname}[0]);
+                my $output = &move_priv_to_home($londocroot,$uid,$gid,$uname,$privspaces{$uname}[0]);
+                print $output;
+                print $logfh $output;
             } else {
                 print &mt('Username [_1] found in [_2] was not within a domain',
                           "'$uname'","'$londocroot/priv'")."\n";
+                my $output = &mt('Skipping this user: [_1].',"'$uname'")."\n";
+                print $output;
+                print $logfh $output;
             }
         }
     }
-    print &mt('Done')."\n";
+    &stop_logging($logfh);
+    print "\n".&mt('Done')."\n";
     exit;
 }
 
@@ -254,11 +390,11 @@
 if (opendir(my $dir,"/home")) {
     foreach my $item (grep(!/^\.{1,2}$/,readdir($dir))) {
         next if ($item eq 'www');
-        if (-d "/home/$item") {
+        if ((-d "/home/$item") && ($item ne '')) {
 # Is there a public_html-directory?
             if (-d "/home/$item/public_html") {
                 my $author = $item;
-                my ($domain,$skipped);
+                my ($domain,$skipped,$output);
                 if (ref($pubusers{$author}) eq 'ARRAY') {
                     ($domain,$skipped) = &choose_domain($action,$author,$pubusers{$author});
                 }
@@ -267,18 +403,53 @@
                         ($domain,$skipped) = &choose_domain($action,$author,$allauthors{$author});
                     }
                 }
+                my $source_path="/home/$author/public_html";
                 if ($domain) { 
-                    my $source_path="/home/$author/public_html";
                     my $target_path="$londocroot/priv/$domain/$author";
                     if ($action eq 'move') {
-                        move($source_path,$target_path);
+                        if (move($source_path,$target_path)) {
                             chown($uid,$gid,$target_path);
-                            chmod($target_path,0755);
-                        print &mt('Moved [_1] to [_2].',"'$source_path'","'$target_path'")."\n";
+                            chmod($target_path,0750);
+                            $output = &mt('Moved [_1] to [_2].',
+                                          "'$source_path'","'$target_path'")."\n";
+                            my (undef,undef,$userid,$groupid) = getpwnam($author);
+                            if ($userid eq '' && $groupid eq '' && $author ne '') {
+                                &check_for_restore_files($londaemons,$author,$domain);
+                                if (opendir(my $homedir,"/home/$author")) {
+                                    my @contents = 
+                                        grep(!/^\.{1,2}$/,readdir($homedir));
+                                    if (@contents == 0) {
+                                        if (rmdir("/home/$author/")) {
+                                            $output .= &mt('Removed empty directory: [_1]',
+                                                           "'/home/$author/'")."\n";
+                                        } else {
+                                            $output .= &mt('Failed to remove directory: [_1]',
+                                                           "'/home/$author/'")."\n";
+                                        }
+                                    } else {
+                                        $output .= &mt('Not removing directory [_1] as it still contains: [_2]',
+                                                   "'/home/$author/'",
+                                                   "\n".join("\n", at contents)."\n");
+                                    }
+                                }
+                            } else {
+                                $output .= &mt('Not removing directory [_1] for UNIX user account',
+                                               "'/home/$author/'")."\n";  
+                            }
+                        } else {
+                            $output = &mt('Failed to move [_1] to [_2].',
+                                          "'$source_path'","'$target_path'")."\n";
+                        }
+                        print $output;
+                        print $logfh $output;
                     } elsif ($action eq 'dryrun') {
                         print &mt('Would move [_1] to [_2].',"'$source_path'","'$target_path'")."\n";
                     }
-                } elsif (!$skipped) {
+                } elsif ($skipped) {
+                    if ($action ne 'dryrun') {
+                        print $logfh &mt('Skipping this user: [_1].',"'$author'")."\n"; 
+                    }
+                } else {
                     print '*** '.&mt('WARNING: [_1] has no domain.',"'$author'")."\n".
                           &mt('Enter [_1]: do nothing, continue.','1')."\n".
                           &mt('Enter [_2]: stop.','2')."\n".
@@ -286,9 +457,16 @@
                           &mt('Your input: ');
                     my $choice=<STDIN>;
                     chomp($choice);
-                    next if ($choice ==1);
+                    if ($choice ==1) {
+                        print $logfh &mt('Skipping -- no domain for user: [_1].',"'$author'")."\n";
+                    }
                     if ($choice == 2) {
                         print &mt('Stopped.')."\n";
+                        if ($action ne 'dryrun') {
+                            my $output = &mt('Stopped by user because of author without domain: [_1].',
+                                             "'$author'")/"\n";
+                            &stop_logging($logfh,$output); 
+                        }
                         exit;
                     } 
                     if ($choice =~ /^$match_domain$/) {
@@ -298,15 +476,28 @@
                             print '*** '.&mt('WARNING: [_1] does not yet exist.',"'$dompath'")."\n";
                         }
                         if ($action eq 'move') {
-                            print &mt('Making author [_1] in domain [_2].',"'$author'","'$choice'")."\n";
                             unless (-e $dompath) {
-                                print &mt('Making [_1].',"'$dompath'")."\n";
-                                mkdir($dompath,0755);
-                                chown($uid,$gid,$dompath);
+                                $output .= &mt('Making [_1].',"'$dompath'")."\n";
+                                if (mkdir($dompath,0755)) {
+                                    chown($uid,$gid,$dompath);
+                                }
+                            }
+                            if (-e $dompath) {
+                                if (move($source_path,$newpath)) {
+                                    chown($uid,$gid,$newpath);
+                                    chmod($newpath,0750);
+                                    $output = &mt('Moved [_1] to [_2].',
+                                                  "'$source_path'","'$newpath'")."\n";
+                                } else {
+                                    $output = &mt('Failed to move [_1] to [_2].',
+                                                  "'$source_path'","'$newpath'")."\n"; 
+                                }
+                                print $output;
+                                print $logfh $output;
+                            } else {
+                                $output = &mt('Failed to move [_1] to [_2] -- missing [_3].',
+                                              "'$source_path'","'$newpath'","'$dompath'")."\n";
                             }
-                            print &mt('Making [_1].',"'$newpath'")."\n";
-                            mkdir($newpath,0755);
-                            chown($uid,$gid,$newpath);
                         } elsif ($action eq 'dryrun') {
                            print &mt('Would make author [_1] in domain [_2].',"'$author'","'$choice'")."\n";
                            unless (-e $dompath) {
@@ -320,7 +511,10 @@
         }
     }
 }
-print "\nDone.\n";
+if ($action ne 'dryrun') {
+    &stop_logging($logfh);
+}
+print "\n".&mt('Done.')."\n";
 
 sub choose_domain { 
     my ($action,$author,$domarrayref) = @_;
@@ -359,29 +553,36 @@
 }
 
 sub move_priv_to_home {
-    my ($londocroot,$uname,$domain) = @_;
+    my ($londocroot,$uid,$gid,$uname,$domain) = @_;
+    my $output;
     if ($uname =~ /^$match_username$/ && $domain =~ /^$match_domain$/) {
         my $source_path="$londocroot/priv/$domain/$uname";
         my $target_path="/home/$uname/public_html";
         if (!-e "/home/$uname") {
-            if (mkdir("/home/$uname",0755)) {
-                chown($uid,$gid,"/home/$uname");
+            my (undef,undef,$userid,$groupid) = getpwnam($uname);
+            if (mkdir("/home/$uname",0750)) {
+                if ($userid ne '' && $groupid ne '') {
+                    chown($userid,$groupid,"/home/$uname");
+                }
             } else {
-                print &mt('Failed to create directory [_1] -- not moving [_2].',
+                $output = &mt('Failed to create directory [_1] -- not moving [_2].',
                           "'/home/$uname'","'$source_path'")."\n";
+                return $output;
             }
         }
-        if (!-e $target_path) {
-             move($source_path,$target_path);
-             chown($uid,$gid,$target_path);
-             chmod($target_path,0755);
-             print &mt('Moved [_1] to [_2].',"'$source_path'","'$target_path'")."\n";
-        } else {
-             print &mt('Directory [_1] already exists -- not moving [_2].',
-                       "'$target_path'","'$source_path'")."\n";
+        if (-e "/home/$uname") {
+            if (!-e $target_path) {
+                move($source_path,$target_path);
+                chown($uid,$gid,$target_path);
+                chmod($target_path,2770);
+                $output = &mt('Moved [_1] to [_2].',"'$source_path'","'$target_path'")."\n";
+            } else {
+                $output = &mt('Directory [_1] already exists -- not moving [_2].',
+                              "'$target_path'","'$source_path'")."\n";
+            }
         }
     }
-    return;
+    return $output;
 }
 
 sub get_user_selection {
@@ -403,3 +604,66 @@
     return $do_action;
 }
 
+sub start_logging {
+    my ($fh,$action) = @_;
+    my $start = localtime(time);
+    print $fh "*****************************************************\n".
+              &mt('[_1] - mode is [_2].',
+                  'move_construction_spaces.pl',"'$action'")."\n".
+              &mt('Started -- time: [_1]',$start)."\n".
+              "*****************************************************\n\n";
+    return;
+}
+
+sub stop_logging {
+    my ($fh) = @_;
+    my $end = localtime(time);
+    print $fh "*****************************************************\n".
+               &mt('Ended -- time: [_1]',$end)."\n".
+              "*****************************************************\n\n\n";
+    close($fh);
+    return;
+}
+
+sub check_for_restore_files {
+    my ($londaemons,$author,$domain) = @_;
+    if (opendir(my $homedir,"/home/$author")) {
+        my @contents = grep(!/^\.{1,2}$/,readdir($homedir));
+        if (@contents > 0) {
+            if (grep(/^restore_\d+\.sh$/, at contents)) {
+                if (!-e "$londaemons/logs/moved_construction_spaces") { 
+                    mkdir("$londaemons/logs/moved_construction_spaces",0755);
+                }
+                if (!-e "$londaemons/logs/moved_construction_spaces/$domain") {
+                    mkdir("$londaemons/logs/moved_construction_spaces/$domain",0755);
+                }
+                if (-e "$londaemons/logs/moved_construction_spaces/$domain") {
+                    if (open(my $restorefh,">>$londaemons/logs/moved_construction_spaces/$domain/$author")) {
+                        foreach my $item (@contents) {
+                            if ($item =~ /^restore_\d+\.sh$/) {
+                                my @stats = stat("/home/$author/$item");
+                                my $lastmod = $stats[9];
+                                if (open(my $fh,"</home/$author/$item")) {
+                                    print $restorefh
+                                          "*******************************\n".
+                                          "$item -- ".localtime(time)."\n".
+                                          "*******************************\n";
+                                    while (<$fh>) {
+                                        print $restorefh $_;
+                                    }
+                                    print $restorefh
+                                          "*******************************\n\n";
+                                    close($fh);
+                                    unlink("/home/$author/$item");
+                                }
+                            }
+                        }
+                        close($restorefh); 
+                    }
+                }
+            }
+        }
+    }
+    return;
+}
+


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