[BACK]Return to printout.pl CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface

Diff for /loncom/interface/printout.pl between versions 1.84 and 1.100

version 1.84, 2005/07/05 13:31:27 version 1.100, 2006/06/12 11:21:07
Line 28 Line 28
 use lib '/home/httpd/lib/perl';  use lib '/home/httpd/lib/perl';
 use LONCAPA::loncgi;  use LONCAPA::loncgi;
 use File::Path;  use File::Path;
   use File::Basename;
 use IO::File;  use IO::File;
 use Image::Magick;  use Image::Magick;
 use Apache::lonhtmlcommon;  use Apache::lonhtmlcommon();
 use Apache::lonnet;  use Apache::lonnet;
 use Apache::loncommon;  use Apache::loncommon();
 use Apache::lonlocal;  use Apache::lonlocal;
 use Apache::lonmsg;  use Apache::lonmsg();
 use LONCAPA::Enrollment;  use LONCAPA::Enrollment;
   
 use strict;  use strict;
   
   
 #  
 #   Determine if a user is operating as a student for this course/domain.  #   Determine if a user is operating as a student for this course/domain.
 #  
 #  
 #Parameters:  #Parameters:
 #   course  - The course id.  #    none
 #   cdom    - The course domain.  
 #  
 #Implicit:  #Implicit:
 #    $env{request.role} contains the role under which this user operated this  #    $env{request.role} contains the role under which this user operated this
 #                       this request.  #                       this request.
 sub is_student {  sub is_student {
     return (! $env{'request.role.adv'});      return ($env{'request.role'}=~/^st\./);
 }  }
   
 #  #
Line 111  sub send_error_mail { Line 107  sub send_error_mail {
  #  The user is a student in the course:   #  The user is a student in the course:
  #   #
   
  if (&is_student( $courseid, $coursedom)) {   if (&is_student()) {
     # build the subject and message body:      # build the subject and message body:
     # print "sending message to course coordinators.<br />";      # print "sending message to course coordinators.<br />";
   
Line 120  sub send_error_mail { Line 116  sub send_error_mail {
     my $subject  = "Error [$badurl] Print failed for $user".'@'.$domain;      my $subject  = "Error [$badurl] Print failed for $user".'@'.$domain;
     my $message .= "Print failed to render LaTeX for $user".'@'."$domain\n";      my $message .= "Print failed to render LaTeX for $user".'@'."$domain\n";
     $message    .= "  User was attempting to print: \n";      $message    .= "  User was attempting to print: \n";
     $message    .= "       $resources\n";      foreach my $resource (split(/:/,$resources)) {
    $message    .= "       $resource\n";
       }
     $message    .= "--------------------LaTeX logfile:------------ \n";      $message    .= "--------------------LaTeX logfile:------------ \n";
     $message    .= $logfile;      $message    .= $logfile;
     $message    .= "-----------------LaTeX source file: ------------\n";      $message    .= "-----------------LaTeX source file: ------------\n";
Line 163  END Line 161  END
 }  }
  &Apache::lonlocal::get_language_handle();   &Apache::lonlocal::get_language_handle();
  &Apache::loncommon::content_type(undef,'text/html');   &Apache::loncommon::content_type(undef,'text/html');
  my $bodytag=&Apache::loncommon::bodytag('Creating PDF','','');   print(&Apache::loncommon::start_page('Creating PDF'));
  print $bodytag;  
   
   my $identifier = $ENV{'QUERY_STRING'};    my $identifier = $ENV{'QUERY_STRING'};
   my $texfile = $env{'cgi.'.$identifier.'.file'};    my $texfile = $env{'cgi.'.$identifier.'.file'};
Line 179  END Line 176  END
   my $student_names = $env{'cgi.'.$identifier.'.studentnames'};    my $student_names = $env{'cgi.'.$identifier.'.studentnames'};
   my $backref = &Apache::lonnet::unescape($env{'cgi.'.$identifier.'.backref'});    my $backref = &Apache::lonnet::unescape($env{'cgi.'.$identifier.'.backref'});
   
   
   my $adv = $env{'request.role.adv'};  
       
   my @names_pack=();    my @names_pack=();
   if ($student_names=~/_END_/) {      if ($student_names=~/_END_/) {  
       @names_pack=split(/_ENDPERSON_/,$student_names);        @names_pack=split(/_ENDPERSON_/,$student_names);
   }    }
   
   print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";
   
   my $figfile = $texfile;    my $figfile = $texfile;
   $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;    $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
   my $duefile = $texfile;    my $duefile = $texfile;
Line 201  END Line 198  END
       close $temporary_file;          close $temporary_file;  
       my $noteps;        my $noteps;
       my %prog_state;        my %prog_state;
       if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80');  }        if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80');  }
         print('<br />');
       foreach my $not_eps (@content_of_file) {        foreach my $not_eps (@content_of_file) {
   chomp($not_eps);    chomp($not_eps);
   if ($not_eps ne '') {    if ($not_eps ne '') {
Line 210  END Line 208  END
       # print "$status_statement\n";        # print "$status_statement\n";
       $not_eps=~s|\/\.\/|\/|g;        $not_eps=~s|\/\.\/|\/|g;
       my $eps_f = $not_eps;        my $eps_f = $not_eps;
       $eps_f =~ s/\.[^.]*$/\.eps/i;        # $eps_f =~ s/\.[^.]*$/\.eps/i;
         $eps_f .= '.eps'; # Just append the eps ext.
       if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {        if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
                   $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;                    $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
   $eps_f = '/home/httpd/prtspool/'.$eps_f;    $eps_f = '/home/httpd/prtspool/'.$eps_f;
Line 230  END Line 229  END
       $not_eps =~ s/\s+$//;        $not_eps =~ s/\s+$//;
       $not_eps =~ s/ /\\ /g;        $not_eps =~ s/ /\\ /g;
       if ( exists($done_conversion{$not_eps})) { next; }        if ( exists($done_conversion{$not_eps})) { next; }
       if ($adv) {        if ($advanced_role) {
   my $prettyname=$not_eps;    my $prettyname=$not_eps;
   $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;    $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
   $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;    $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;
Line 239  END Line 238  END
       $done_conversion{$not_eps}=1;        $done_conversion{$not_eps}=1;
       # print "Converting $not_eps -> $eps_f"; # Debugging        # print "Converting $not_eps -> $eps_f"; # Debugging
       system("convert $not_eps $eps_f");        system("convert $not_eps $eps_f");
               #check is eps exist in prtspool                # check is eps exist in prtspool
               if(not -e $eps_f) {                if (not -e $eps_f) {
     # converting an animated gif creates either:
                     # anim.gif.eps.0
                     # or
                     # anim.gif-0.eps
   for (my $i=0;$i<10000;$i++) {    for (my $i=0;$i<10000;$i++) {
       if (-e $eps_f.'.'.$i) {        if (-e $eps_f.'.'.$i) {
   rename $eps_f.'.'.$i, $eps_f;    rename($eps_f.'.'.$i, $eps_f);
     last;
         }
         my $anim_eps = $eps_f;
         $anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i;
         if (-e $anim_eps) {
     rename($anim_eps, $eps_f);
   last;    last;
       }        }
   }    }
       }          }
         # imagemagick 6.2.0-6.2.7 fails to properly handle
                 # convert anim.gif anim.gif.eps
                 # it creates anim.eps instead. 
                 if (not -e $eps_f) {
     my $eps_f2 = $eps_f;
     $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;
     if(-e $eps_f2) {
         rename($eps_f2,$eps_f);
     }
         }
   
   }    }
       }        }
       if ($adv) {         if ($advanced_role) { 
   &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);     &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); 
       }        }
       unlink($figfile);        unlink($figfile);
Line 261  END Line 281  END
       @texfile=();        @texfile=();
       for (my $i=1;$i<=$number_of_files;$i++) {        for (my $i=1;$i<=$number_of_files;$i++) {
   my $new_texfile=$texfile;    my $new_texfile=$texfile;
   $new_texfile=~s/\.tex/_$i\.tex/;    $new_texfile=~s/\.tex//;
     $new_texfile = sprintf("%s_%03d.tex", $new_texfile,$i);
   push @texfile,$new_texfile;    push @texfile,$new_texfile;
       }         } 
   }    }
   
 my $ind=-1;  my $ind=-1;
 my %prog_state;  my %prog_state;
 print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";  if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
 if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }  
 print "<br />";  print "<br />";
   my $num_files = @texfile;
 foreach $texfile (@texfile) {  foreach $texfile (@texfile) {
   my $status_statement='';    my $status_statement='';
   my $link_text='download PDF';    my $link_text='download PDF';
Line 278  foreach $texfile (@texfile) { Line 299  foreach $texfile (@texfile) {
   my @stud_info=split(/_END_/,$names_pack[$ind]);    my @stud_info=split(/_END_/,$names_pack[$ind]);
   my @tempo_array=split(/:/,$stud_info[0]);    my @tempo_array=split(/:/,$stud_info[0]);
   my $name;    my $name;
     my $name_range='';
   if ($tempo_array[3]) {    if ($tempo_array[3]) {
       $name=$tempo_array[3];        $name=$tempo_array[3];
         ($name_range) = split(/,/,$name, 2);
   } else {    } else {
       $name=$tempo_array[0].'@'.$tempo_array[1];        $name=$tempo_array[0].'@'.$tempo_array[1];
         $name_range = $tempo_array[0];
     }
     if (($name ne "") && ($name ne '@') ) { # Could be printing codes...
         $link_text='<b>'.$name.'</b>';
         $status_statement.=$name;
   }    }
   $link_text='<b>'.$name.'</b>';  
   $status_statement.=$name;  
   if ($#stud_info>0) {    if ($#stud_info>0) {
       @tempo_array=split(/:/,$stud_info[-1]);        @tempo_array=split(/:/,$stud_info[-1]);
       if ($tempo_array[3]) {        if ($tempo_array[3]) {
   $name=$tempo_array[3];    $name=$tempo_array[3];
     my ($lastname) = split(/,/, $name,2);
     $name_range .= "-".$lastname;
       } else {        } else {
   $name=$tempo_array[0].'@'.$tempo_array[1];    $name=$tempo_array[0].'@'.$tempo_array[1];
     $name_range .= '-'.$tempo_array[0];
       }        }
       $link_text.=' - <b>'.$name.'</b>';        if (($name ne "") && ($name ne '@')) {
       $status_statement.=' -  '.$name;    $link_text.=' - <b>'.$name.'</b>';
   }     $status_statement.=' -  '.$name;
   if ($adv) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }    
         }
     }
     if(($num_files > 1) && ($link_text eq 'download PDF')) { # Printing codes
         $link_text = '<b>'.basename($texfile,'.tex').'.pdf</b>';
         $status_statement .= basename($texfile);
     }
     $name_range =~ s/'//g; # O'Neil -> ONeil e.g.
     print "<br/>";
     if ($advanced_role) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }
     #  This little piece of dirt puts username ranges into the original tex
     #  Tex filename from which they'll propagate into the other filenames as well.
     #
   if (-e $texfile) {    if (-e $texfile) {
         if (($name_range ne '') && ($num_files > 1)) {
     my $newtexfile = $texfile;
     $newtexfile    =~ s/\.tex/$name_range\.tex/;
     rename($texfile, $newtexfile);
     $texfile       = $newtexfile;
         }
       $texfile =~ m/^(.*)\/([^\/]+)$/;         $texfile =~ m/^(.*)\/([^\/]+)$/; 
       my $name_file = $2;        my $name_file = $2;
       my $path_file = $1.'/';        my $path_file = $1.'/';
       chdir $path_file;        chdir $path_file;
       my $dvi_file= $name_file; $dvi_file =~ s/\.tex/\.dvi/;        my $dvi_file= $name_file; $dvi_file =~ s/\.tex/$name_range\.dvi/;
       &busy_wait_command("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 $status_statement now LaTeXing file",
  \%prog_state,$dvi_file);   \%prog_state,$dvi_file);
       if ($tableofcontents eq 'yes') {        if ($tableofcontents eq 'yes') {
       &busy_wait_command("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",   "for $status_statement First LaTeX of file for table of contents",
    \%prog_state,$dvi_file);
         &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
    "for $status_statement Second LaTeX of file for table of contents",
  \%prog_state,$dvi_file);   \%prog_state,$dvi_file);
       } #to create table of contents        } #to create table of contents
       my $idxname=$name_file;        my $idxname=$name_file;
Line 351  foreach $texfile (@texfile) { Line 401  foreach $texfile (@texfile) {
       print "It probably has errors in it.<br />";        print "It probably has errors in it.<br />";
       print "With very high probability this error occured in ".$badtext."<br /><br />";        print "With very high probability this error occured in ".$badtext."<br /><br />";
       print "Here are the error messages in the LaTeX log file<br /><pre>";        print "Here are the error messages in the LaTeX log file<br /><pre>";
   
       my $sygnal = 0;        my $sygnal = 0;
       for (my $i=0;$i<=$#content_of_file;$i++) {        for (my $i=0;$i<=$#content_of_file;$i++) {
   if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {    if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
Line 382  foreach $texfile (@texfile) { Line 433  foreach $texfile (@texfile) {
       $texfile=~s/\/home\/httpd//;        $texfile=~s/\/home\/httpd//;
       print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";        print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
       print "\n";        print "\n";
         my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
         print ("$help_text");
   
   } else { # Student role...    } else { # Student role...
       #  at this point:        #  at this point:
       #    $body_log_file - contains the log file.        #    $body_log_file - contains the log file.
Line 393  foreach $texfile (@texfile) { Line 447  foreach $texfile (@texfile) {
       my $tex_handle = IO::File->new($name_file);        my $tex_handle = IO::File->new($name_file);
       my @tex_contents = <$tex_handle>;        my @tex_contents = <$tex_handle>;
       &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);        &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
       print "<br />A message has been sent to the instructor describing this failure<br />"        print "<br />A message has been sent to the instructor describing this failure<br />";
         my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
         print  ("$help_text");
   
   }    }
   
       } elsif ($body_log_file=~m/<inserted text>/) {        } elsif ($body_log_file=~m/<inserted text>/) {
Line 418  foreach $texfile (@texfile) { Line 475  foreach $texfile (@texfile) {
      "for $status_statement now Converting to PS",       "for $status_statement now Converting to PS",
      \%prog_state,$new_name_file);       \%prog_state,$new_name_file);
   if (-e $new_name_file) {    if (-e $new_name_file) {
         &repaginate_postscript($new_name_file);
       print "<h1>PDF output file (see link below)</h1>\n";        print "<h1>PDF output file (see link below)</h1>\n";
       $new_name_file =~ m/^(.*)\./;        $new_name_file =~ m/^(.*)\./;
       my $ps_file = my $tempo_file = $1.'temporar.ps';        my $ps_file = my $tempo_file = $1.'temporar.ps';
Line 492  foreach $texfile (@texfile) { Line 550  foreach $texfile (@texfile) {
      "for $status_statement now Converting to PS",       "for $status_statement now Converting to PS",
      \%prog_state,$new_name_file);       \%prog_state,$new_name_file);
   if (-e $new_name_file) {    if (-e $new_name_file) {
         &repaginate_postscript($new_name_file);
       print "<br />";        print "<br />";
       $new_name_file =~ m/^(.*)\./;        $new_name_file =~ m/^(.*)\./;
       my $ps_file = my $tempo_file = $1.'temporar.ps';        my $ps_file = my $tempo_file = $1.'temporar.ps';
Line 569  if ($number_of_files>1) { Line 628  if ($number_of_files>1) {
     $zipfile=~s/\/home\/httpd//;      $zipfile=~s/\/home\/httpd//;
     print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";      print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
 }  }
 if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }  if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
   print(&Apache::loncommon::end_page());
 my $done;  my $done;
 sub REAPER {  sub REAPER {
     $done=1;      $done=1;
Line 582  sub busy_wait_command { Line 641  sub busy_wait_command {
     $SIG{CHLD} = \&REAPER;      $SIG{CHLD} = \&REAPER;
     $done=0;      $done=0;
     my $pid=open(CMD,"$command |");      my $pid=open(CMD,"$command |");
     if ($adv) {      if ($advanced_role) {
  &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);   &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
     }      }
     while(!$done) {      while(!$done) {
Line 592  sub busy_wait_command { Line 651  sub busy_wait_command {
     my $size=(stat($output_file))[7];      my $size=(stat($output_file))[7];
     $extra_msg=", $size bytes generated";      $extra_msg=", $size bytes generated";
  }   }
  if ($adv) {   if ($advanced_role) {
     &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,      &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
   $message.$extra_msg);    $message.$extra_msg);
  }   }
Line 602  sub busy_wait_command { Line 661  sub busy_wait_command {
 }  }
   
   
   #  Repagninate a postscript file.
   #  What we need to do:
   #   - Count the number of pages in each student.
   #   - Add pages between each student so that each student's output is
   #     the maximum number of pages.
   #   
   sub repaginate_postscript {
   
       # We will try to do this in 2 passes through the postscript since
       # the postscript is potentially large, to do 2 passes, the first pass
       # must be able to calculate the total number of document pages so that
       # at the beginning of the second pass we already know how to replace
       #  %%Pages:
   
       #  Figure out
       #    1. Number of pages in the document
       #    2. Maximum number of pages in a student
       #    3. Number of pages in each student.
   
       my ($postscript_filename) = @_;
       open(PSFILE, "<$postscript_filename");
       my $line;
       my $total_pages; # Total pages in document.
       my $seen_pages        = 0; # There are several %%Pages only the first is useful
       my $student_number    = 0; # Index of student we're working on.
       my @pages_in_student; # For each student his/her initial page count.
       my $max_pages = 0; # Pages in 'longest' student.
       while ($line = <PSFILE>) {
    my $page_number = 0;
   
    # Check for total pages (%%Pages:)
   
    if (($line =~ "^%%Pages:") && (!$seen_pages)) {
       my @pageinfo = split(/ /,$line);
       $total_pages = $pageinfo[1];
       $seen_pages  = 1;
    }
    #  Check for %%Page: n m  $page_number will be the
    #  biggest of these until we see an endofstudent.
    #  Note that minipages generate spurious %Page: 1 1's so
    #  we only are looking for the largest n (n is page number at the
    #  bottom of the page, m the page number within the document.
    #
    if ($line =~ "^%%Page:") {
       my @pageinfo = split(/ /, $line);
       if ($page_number < $pageinfo[1]) {
    $page_number = $pageinfo[1];
       }
    }
    #  ENDOFSTUDENTSTAMP - save the page_number, reset and, if necessary
    #                      udpate max_pages.
    #
    if ($line =~ "ENDOFSTUDENTSTAMP") {
       $pages_in_student[$student_number] = $page_number;
       $student_number++;
   
       if ($page_number > $max_pages) {
    $max_pages = $page_number;
       }
       $page_number = 0;
     
    }
   
   
       }
       close(PSFILE);
       
       #   Figure out how many total pages we need to add and adjust the
       #   $total_pages accordingly:
       #
       my $add_pages  = 0;
       for (my $i =0; $i < $student_number; $i++) {
    $add_pages += ($max_pages - $pages_in_student[$i]);
       }    
       #  If we don't need to add any pages, we're done!
       #  You  might think that we don't need to do anything if 
       #  there are no pages to add, however we still need to at least strip out
       #   the ENDOFSTUDENTSTAMP stamps...as they are not postscript comments!!
   
     
       #  Now pass 2; we're going to write the new. ps file:
       #  -  Modify its first %%Pages: line so that it has the new correct number of
       #     pages
       #  -  For each student, insert as many blank pages as needed (and
       #     associated structured comments) to expand a  student out to
       #     max_pages pages.
       #  -  Remove the ENDOFSTUDENTSTAMP lines.
       #
   
       $total_pages += $add_pages;
       $student_number = 0;
    
      open(PSFILE, "<$postscript_filename");
       open(PSOFILE,">$postscript_filename"."repaginating"); # unique if original fname is.
       $seen_pages = 0; # Reset seen %%Pages flag...
       while ($line = <PSFILE>) {
    if (($line =~ "^%%Pages:") && (!$seen_pages)) {
       $line = "%%Pages: $total_pages\n";
       $seen_pages = 1;
    }
    if ($line =~ "ENDOFSTUDENTSTAMP") {
       $add_pages = ($max_pages - $pages_in_student[$student_number]);
       $line = "\n";
       my $last_student_page = $pages_in_student[$student_number];
       my $last_total_page   = $student_number*$max_pages + $last_student_page;
       while ($add_pages) {
    $line .= "%Page: $last_student_page $last_total_page\n";
    my $bop = $last_total_page-1;
    $line .= "TeXDict begin $last_student_page $bop bop eop end\n";
    $last_student_page++;
    $last_total_page++;
    $add_pages--;
       }
       $student_number++;
    }
    print PSOFILE $line;
       }
       close PSOFILE;
       close PSFILE;
   
       rename($postscript_filename."repaginating", $postscript_filename);
   
   }
   
Removed from v.1.84  
changed lines
  Added in v.1.100

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