--- loncom/interface/printout.pl 2004/07/28 22:00:14 1.59 +++ loncom/interface/printout.pl 2005/05/09 09:54:02 1.81 @@ -1,7 +1,6 @@ #!/usr/bin/perl # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc. # -# $Id: printout.pl,v 1.59 2004/07/28 22:00:14 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -27,17 +26,128 @@ # use lib '/home/httpd/lib/perl'; -use LONCAPA::loncgi(); +use LONCAPA::loncgi; use File::Path; use IO::File; use Image::Magick; use Apache::lonhtmlcommon; +use Apache::lonnet; use Apache::loncommon; use Apache::lonlocal; +use Apache::lonmsg; +use LONCAPA::Enrollment; use strict; + + +# +# Determine if a user is operating as a student for this course/domain. +# +# +#Parameters: +# course - The course id. +# cdom - The course domain. +# +#Implicit: +# $env{request.role} contains the role under which this user operated this +# this request. +sub is_student { + return (! $env{'request.role.adv'}); +} + +# +# Debugging: Dump the environment for debugging. +# +sub dumpenv { + print "
-------------------
"; + foreach my $key (sort (keys %env)) { + print "
$key -> $env{$key}"; + } + print "
-------------------
"; +} + +# +# This sub sends a message to the appropriate person if there was an error +# rendering the latex At present, there's only one case to consider: +# a student printing inside a course results in messages to the course coordinator. +#Parmaeters: +# identifier - The unique identifier of this cgi request. +# badresource- Filepath to most likely failing +# logfile - The contents of the log file (included in the message). +# texfile - reference to an array containing the LaTeX input file +# (included in the message). +#Implicit inputs: +# From the environment: +# cgi.$identifier.user - User doing the printing. +# cgi.$identifier.domain - Domain the user is logged in on with printing. +# cgi.$identifier.courseid - Id of the course (if this is a course). +# cgi.$identifier.coursedom- Domain in which course was constituted. +# cgi.$identifier.resources - List of resource URL's for which the print +# was attempted. +# +sub send_error_mail { + my ($identifier, $badresource, $logfile, $texfile) = @_; + my $user = $env{"cgi.$identifier.user"}; + my $domain = $env{"cgi.$identifier.domain"}; + my $courseid = $env{"cgi.$identifier.courseid"}; + my $coursedom= $env{"cgi.$identifier.coursedom"}; + my $resources= $env{"cgi.$identifier.resources"}; + + # resource file->URL + # + my $badurl = &Apache::lonnet::declutter($badresource); + + # &dumpenv(); + + + + # Only continue if there is a user, domain, courseid, course domain + # and resources: + + if(defined($user) && defined($domain) && defined($courseid) && + defined($coursedom) && defined($resources) ){ + + # Only mail if the conditions are ripe for it: + # The user is a student in the course: + # + + if (&is_student( $courseid, $coursedom)) { + # build the subject and message body: + # print "sending message to course coordinators.
"; + + # Todo: Convert badurl into a url from file path: + + my $subject = "Error [$badurl] Print failed for $user".'@'.$domain; + my $message .= "Print failed to render LaTeX for $user".'@'."$domain\n"; + $message .= " User was attempting to print: \n"; + $message .= " $resources\n"; + $message .= "--------------------LaTeX logfile:------------ \n"; + $message .= $logfile; + $message .= "-----------------LaTeX source file: ------------\n"; + + foreach my $line (@$texfile) { + $message .= "$line\n"; + } + my (undef, %receivers) = &Apache::lonfeedback::decide_receiver(undef, 0, + 1,1,1); + # print "
sending...section: $env{'request.course.sec'}"; + foreach my $dest (keys %receivers) { + # print "
dest is $dest"; + my @destinfo = split(/:/,$dest); + my $user = $destinfo[0]; + my $dom = $destinfo[1]; + + &Apache::lonmsg::user_normal_msg($user, $dom, + $subject, $message); + + # No point in looking at the return status as there's no good + # error action I can think of right now (log maybe?). + } + } + } +} + $|=1; -my %origENV=%ENV; if (! &LONCAPA::loncgi::check_cookie_and_load_env()) { print <new($figfile) || die "Couldn't open file for reading: $!\n"; + my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n"; my @content_of_file = <$temporary_file>; close $temporary_file; my $noteps; @@ -93,7 +205,9 @@ END foreach my $not_eps (@content_of_file) { chomp($not_eps); if ($not_eps ne '') { + # print "Converting $not_eps"; # Debugging. my $status_statement='EPS picture for '.$not_eps; + # print "$status_statement\n"; $not_eps=~s|\/\.\/|\/|g; my $eps_f = $not_eps; $eps_f =~ s/\.[^.]*$/\.eps/i; @@ -107,26 +221,24 @@ END $eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/; $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2; } + $eps_f =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX. my $path=$eps_f; - $path=~s/\/([^\/]+)\.eps$//; + $path =~ s/\/([^\/]+)\.eps$//; + # print "Final file path: $path "; # Debugging File::Path::mkpath($path,0,0777); - my $image = Image::Magick->new; $not_eps =~ s/^\s+//; $not_eps =~ s/\s+$//; - if ( exists($done_conversion{$not_eps})) { - next; - } + $not_eps =~ s/ /\\ /g; + if ( exists($done_conversion{$not_eps})) { next; } if ($adv) { my $prettyname=$not_eps; $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|; $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|; - &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname); } + &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname); + } $done_conversion{$not_eps}=1; - my $status = $image->Read($not_eps); - if ($status) {print " $status ";} - $image->Set(page => '+100+200'); - $status = $image->Write($eps_f); - if ($status) {print " $status ";} + # print "Converting $not_eps -> $eps_f"; # Debugging + system("convert $not_eps $eps_f"); #check is eps exist in prtspool if(not -e $eps_f) { for (my $i=0;$i<10000;$i++) { @@ -138,7 +250,9 @@ END } } } - if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); } + if ($adv) { + &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); + } unlink($figfile); } #print "$texfile\n"; #name of the tex file for debugging only @@ -154,8 +268,9 @@ END my $ind=-1; my %prog_state; +print "Return to last resource.

"; if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); } -my $final_statement="Return to last resource.

Generated PDF File for:
"; +print "
"; foreach $texfile (@texfile) { my $status_statement=''; my $link_text='download PDF'; @@ -168,7 +283,7 @@ foreach $texfile (@texfile) { } else { $name=$tempo_array[0].'@'.$tempo_array[1]; } - $link_text=''.$name.' '; + $link_text=''.$name.''; $status_statement.=$name; if ($#stud_info>0) { @tempo_array=split(/:/,$stud_info[-1]); @@ -177,7 +292,7 @@ foreach $texfile (@texfile) { } else { $name=$tempo_array[0].'@'.$tempo_array[1]; } - $link_text.='- '.$name.': '; + $link_text.=' - '.$name.''; $status_statement.=' - '.$name; } if ($adv) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); } @@ -191,18 +306,23 @@ foreach $texfile (@texfile) { "for $status_statement now LaTeXing file", \%prog_state,$dvi_file); if ($tableofcontents eq 'yes') { - system("latex $name_file 1>/dev/null 2>/dev/null"); + &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null", + "for $status_statement now LaTeXing file for table of contents", + \%prog_state,$dvi_file); } #to create table of contents my $idxname=$name_file; $idxname=~s/\.tex$/\.idx/; if ($tableofindex eq 'yes') { - system("makeindex $idxname"); - system("latex $name_file 1>/dev/null 2>/dev/null"); + &busy_wait_command("makeindex $idxname", + "making index file", + \%prog_state,$idxname); + &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null", + "for $status_statement now LaTeXing file for index section", + \%prog_state,$dvi_file); } #to create index #Do we have a latex error in the log file? - my $logfilename = $texfile; - $logfilename =~ s/\.tex$/\.log/; - my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n"; + my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/; + my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n"; my @content_of_file = <$temporary_file>; close $temporary_file; my $body_log_file = join(' ',@content_of_file); @@ -215,10 +335,19 @@ foreach $texfile (@texfile) { print "It probably has errors in it.
"; my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART'; my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND'; + my $badresource; if ($whereitbegins!=-1 and $whereitends!=-1) { - print "With very high probability this error occured in ".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)."

"; + my $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26); + print "With very high probability this error occured in ".$badtext."

"; + $whereitbegins = rindex $badtext,'located in'; + if ($whereitbegins != -1) { + + $badresource = substr($badtext, $whereitbegins+27, + length($badtext) - $whereitbegins - 48); + # print "
failing resourcename: $badresource
"; + } } - print "Here are the error messages in the LaTeX log file

"; + print "Here are the error messages in the LaTeX log file

";
 	  my $sygnal = 0;
 	  for (my $i=0;$i<=$#content_of_file;$i++) {
 	      if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
@@ -228,16 +357,18 @@ foreach $texfile (@texfile) {
 		  $sygnal = 0;
 	      } 
 	      if ($sygnal) {
-		  print "$content_of_file[$i]
";
+		  print "$content_of_file[$i]";
 	      }  
 	  }
-          if ($advans_role) {  
+	  print "
\n"; + if ($advanced_role) { + # print "
Advanced role
"; print "The link to "; $logfilename=~s/\/home\/httpd//; print "Your log file "; print "\n"; #link tooriginal LaTeX file (included according Michael Hamlin desire) - my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n"; + my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n"; my @tex_content_of_file = <$tex_temporary_file>; close $tex_temporary_file; my $body_tex_file = join(' ',@tex_content_of_file); @@ -249,6 +380,15 @@ foreach $texfile (@texfile) { $texfile=~s/\/home\/httpd//; print "Your original LaTeX file "; print "\n"; + } else { # Student role... + # at this point: + # $body_log_file - contains the log file. + # $name_file - is the name of the LaTeX file. + # $identifier - is the unique LaTeX identifier.l + + my $tex_handle = IO::File->new($name_file); + my @tex_contents = <$tex_handle>; + &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents); } } elsif ($body_log_file=~m//) { @@ -265,7 +405,10 @@ foreach $texfile (@texfile) { $name_file =~ s/\.tex/\.dvi/; my $new_name_file = $name_file; $new_name_file =~ s/\.dvi/\.ps/; - my $comma = "dvips -Ppdf -G0 -o $new_name_file"; + my $papera=$paper; + if ($papera eq 'letter') {$papera='';} + if ($papera ne '') {$papera='-t'.$papera;} + my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file"; &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null", "for $status_statement now Converting to PS", \%prog_state,$new_name_file); @@ -280,10 +423,14 @@ foreach $texfile (@texfile) { "for $status_statement now Modifying PS layout", \%prog_state,$tempo_file); } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') { - $comma = 'pstops -pletter "2:0+1(0.48w,0)"'; + my $papera=$paper; + if ($papera eq 'letter') {$papera='';} + if ($papera ne '') {$papera='-p'.$papera;} + $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"'; &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null", "for $status_statement now Modifying PS layout", \%prog_state,$tempo_file); + } else { $ps_file=$new_name_file; } @@ -303,39 +450,41 @@ foreach $texfile (@texfile) { # unlink @garb; unlink $duefile; print "Your PDF document"; - if ($advans_role) { - print "

"; - print "The link to "; - $logfilename=~s/\/home\/httpd//; - print "Your log file "; - print "\n"; - #link tooriginal LaTeX file (included according Michael Hamlin desire) - my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n"; - my @tex_content_of_file = <$tex_temporary_file>; - close $tex_temporary_file; - my $body_tex_file = join(' ',@tex_content_of_file); - $texfile =~ s/\.tex$/aaaaa\.html/; - $tex_temporary_file = IO::File->new('>'.$texfile); - print $tex_temporary_file 'LOGFILE
'.$body_tex_file.'
'."\n"; - print "

"; - print "The link to "; - $texfile=~s/\/home\/httpd//; - print "Your original LaTeX file "; - print "\n"; - } + } + if ($advanced_role) { + print "

"; + print "The link to "; + $logfilename=~s/\/home\/httpd//; + print "Your log file "; + print "\n"; + #link tooriginal LaTeX file (included according Michael Hamlin desire) + my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n"; + my @tex_content_of_file = <$tex_temporary_file>; + close $tex_temporary_file; + my $body_tex_file = join(' ',@tex_content_of_file); + $texfile =~ s/\.tex$/aaaaa\.html/; + $tex_temporary_file = IO::File->new('>'.$texfile); + print $tex_temporary_file 'LOGFILE
'.$body_tex_file.'
'."\n"; + print "

"; + print "The link to "; + $texfile=~s/\/home\/httpd//; + print "Your original LaTeX file "; + print "\n"; } } else { #LaTeX successfully parsed tex file $name_file =~ s/\.tex/\.dvi/; my $new_name_file = $name_file; $new_name_file =~ s/\.dvi/\.ps/; - my $comma = "dvips -Ppdf -G0 -o $new_name_file"; + my $papera=$paper; + if ($papera eq 'letter') {$papera='';} + if ($papera ne '') {$papera='-t'.$papera;} + my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file"; &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null", "for $status_statement now Converting to PS", \%prog_state,$new_name_file); if (-e $new_name_file) { - print "
$final_statement "; - $final_statement=''; + print "
"; $new_name_file =~ m/^(.*)\./; my $ps_file = my $tempo_file = $1.'temporar.ps'; my $pdf_file = $1.'.pdf'; @@ -345,13 +494,35 @@ foreach $texfile (@texfile) { "for $status_statement now Modifying PS layout", \%prog_state,$tempo_file); } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') { - $comma = 'pstops -pletter "2:0+1(0.48w,0)"'; + $papera=~s/t/p/; + $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"'; &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null", "for $status_statement now Modifying PS layout", \%prog_state,$tempo_file); } else { $ps_file=$new_name_file; } + my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice', + 'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice', + 'executive'=>,'<< /PageSize [540 720] >> setpagedevice', + 'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice', + 'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice', + 'a4'=>'<< /PageSize [595.2 842] >> setpagedevice', + 'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice', + 'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice', + }; + if ($paper ne 'letter') { + open(FFH,'<',$ps_file) || die "Couldn't open ps file $ps_file for reading: $!\n"; + my $new_ps_file='new'.$ps_file; + open(FFHS,'>',$new_ps_file) || die "Couldn't open new ps file $new_ps_file for reading: $!\n"; + print FFHS $addtoPSfile->{$paper}."\n"; + while () { + print FFHS $_; + } + close(FFH); + close(FFHS); + $ps_file=$new_ps_file; + } &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null", "for $status_statement now Converting PS to PDF", \%prog_state,$pdf_file); @@ -367,10 +538,10 @@ foreach $texfile (@texfile) { my @garb = ($texlog,$texaux,$texdvi,$texps); # unlink @garb; unlink $duefile; - print "$link_text"; + print "$link_text - click here to download pdf"; print "\n"; } - } + } } else { print "LaTeX file $texfile was not created successfully"; } @@ -403,7 +574,9 @@ sub busy_wait_command { $SIG{CHLD} = \&REAPER; $done=0; my $pid=open(CMD,"$command |"); - &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message); + if ($adv) { + &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message); + } while(!$done) { sleep 1; my $extra_msg; @@ -411,8 +584,10 @@ sub busy_wait_command { my $size=(stat($output_file))[7]; $extra_msg=", $size bytes generated"; } - &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win, - $message.$extra_msg); + if ($adv) { + &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win, + $message.$extra_msg); + } } $SIG{CHLD}='IGNORE'; close(CMD);