[BACK]Return to lonsource.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface
File:  [LON-CAPA] / loncom / interface / lonsource.pm
Revision 1.4: download - view: text, annotated - select for diffs
Wed Jul 7 00:02:00 2004 UTC (19 years, 10 months ago) by taceyjo1
Branches: MAIN
CVS tags: HEAD
Here is the rest of the source code moving code, I also attempted to
keep it all tabinated, anyway, going to close the bug now #78

# The LearningOnline Network with CAPA
# Souce Code handler
#
# $Id: lonsource.pm,v 1.4 2004/07/07 00:02:00 taceyjo1 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/
#
###


package Apache::lonsource;

use strict;
use Apache::lonnet();
use Apache::loncommon();
use Apache::lonhtmlcommon();
use Apache::lonsequence();
use Apache::Constants qw(:common :http);
use Apache::lonmeta;
use Apache::File;
use Apache::lonlocal;
use HTML::Entities;

sub make_link {
    my ($filename, $listname) = @_;
    my $sourcelink = "http://".$ENV{'SERVER_NAME'}.
	"/adm/source/?filename=".$filename."&listname=".$listname;

    return $sourcelink;
}

sub stage_2 {
	my ($r, $filename, $author, $listname) = @_;
	$filename = $filename;
	&Apache::loncommon::content_type($r,'text/html');
	my ($uname, $udom) = &Apache::loncacc::constructaccess('/~'.$author.'/',$r->dir_config('lonDefDomain'));
	$r->send_http_header;
	$r->print('<html><head><title>LON-CAPA Move source to construction space</title>');
	$r->print(&Apache::loncommon::bodytag('Problem source code moving operation'));
	$r->print("Please enter the directory that you would like the source code to go into, a default has also been provided <br />");
	$r->print("Also note, the path is in reference to the root of your construction space, and new directories will be automatically created. <br /><br />");
	$r->print('		    <form name="copy" action="/adm/source/" target="_parent" method="post">
	<input type="hidden" name="filename" value="'.$filename.'" />
	<input type="hidden" name="listname" value="'.$listname.'" />
	<input type="hidden" name="action" value="copy_stage" />
	<input type="text" name="newpath" value="/shared_source/'.$author.'" />&nbsp;
	<input type="submit" value="Copy" />
	</form>');
	return OK;
}


sub copy_stage {
    my ($r, $filename, $listname, $newpath) = @_;
    my $role;
    my $domain;
    my $author_name;
    #Figure out if we are author or co-author
    if($ENV{'request.role'} =~ m|ca.|) { 
    	($role, $domain, $author_name) = split(/\//,$ENV{'request.role'});
    } else {
    	$role = "au.";
    	$domain = $ENV{'user.domain'};
    	$author_name = $ENV{'user.name'};
    	}
    
    my $path_to_new_file = '/home/'.$author_name.'/public_html/'.$newpath.'/'.$listname;
    #Just checking again for access as we want to make sure that it is really ok now that we have the real path
    my ($uname,$udom)= &Apache::loncacc::constructaccess($path_to_new_file,$domain);
    unless (($uname) && ($udom)) {
	 return HTTP_NOT_ACCEPTABLE;
    }
    &Apache::loncommon::content_type($r,'text/html');
    $r->send_http_header;
    $r->print('<html><head><title>LON-CAPA Move source to construction space</title>');
	 $r->print(&Apache::loncommon::bodytag('Copying Source'));
	 my $result = &Apache::loncfile::exists($uname, $udom, $path_to_new_file);
	 $r->print($result);	
	 if(($result) && ($result =~ m|published|) ) {
	 		&delete_file($r, $author_name, $newpath, $filename, $path_to_new_file, '1');
	 } elsif(($result) && ($result =~ m|exists!|)) {
	 		&confirm($r, $author_name, $newpath, $filename, $path_to_new_file);
	 } else { 
	 		&copy_file($r, $author_name, $newpath, $filename, $path_to_new_file);
	 }
	
return OK;	
	
}

sub confirm {
	my ($r, $author_name, $newpath, $filename, $path_to_new_file) = @_;
	$r->print("<b>Press delete to remove file and replace it with a copy of the source you are viewing</b><br /><br />");
	$r->print('		    <form name="delete_confirm" action="/adm/source/" target="_parent" method="post">
		      <input type="hidden" name="filename" value="'.$filename.'" />
		      <input type="hidden" name="path" value="'.$path_to_new_file.'" />
		      <input type="hidden" name="author" value="'.$author_name.'" />
		      <input type="hidden" name="newpath" value="'.$newpath.'" />
		      <input type="hidden" name="action" value="delete_confirm" />
	            
	              <input type="submit" value="Delete" />
		    </form>');
}

sub delete_file {
	my ($r, $author_name, $newpath, $filename, $path_to_new_file, $type) = @_;
	if($type eq '1') { 
		$r->print("<b>Cannot delete non-obsolete published file</b><br />Please
					use the code view in previous window to use shared code<br /><br />");
		$r->print('<input type="button" value="Close Window" name="close" onClick="window.close()">');
	} else {
		if(-e $path_to_new_file) {
	   unless(unlink($path_to_new_file)) {
			$r->print('<font color="red">'.&mt('Error').': '.$!.'</font>');
			return 0;
	   }
	} else {
	    $r->print('<p> '.&mt('No such file').'. </p></form>');
	    return 0;
	  }
	  &copy_file($r, $author_name, $newpath, $filename, $path_to_new_file);
	}
}

sub copy_file {
	my ($r, $author_name, $newpath, $filename, $path_to_new_file) = @_;
	$r->print("<b>Creating directories</b>");
	my $path = '/home/'.$author_name.'/public_html/';
	my @directories = split(/\//,$newpath);
	foreach my $now_checking (@directories) { 
		if($now_checking ne '') {
			$path = $path.'/'.$now_checking;
			if(-e $path) {} #More moving along, isn't recursion fun'
			else {
				unless(mkdir($path, 02770)) {
					$r->print('<font color="red">'.&mt('Error').': '.$!.'</font>');
					return 0;
				}
				unless(chmod(02770, ($path))) {
					$r->print('<font color="red"> '.&mt('Error').': '.$!.'</font>');
					return 0;
				}
			}
		} else { } #Just move along
	}
	$r->print("<br /><b>Copying File</b>");
	my $problem_filename = "/home/httpd/html".$filename;
	my $file_output = &Apache::lonnet::getfile($problem_filename);
	my $fs=Apache::File->new(">$path_to_new_file");
	if (defined($fs)) {
		print $fs $file_output;
	}
	$r->print("<br /><br />");
	$r->print('<input type="button" value="Close Window" name="close" onClick="window.close()">');
	#Some 1.3'ish feature is to include the derivative feature, will go here..'
}	

sub print_item {
	my ($r, $filename) = @_;
	$filename = "/home/httpd/html".$filename;
	&Apache::lonnet::logthis("print_item filename = $filename");
	my $file_output = &Apache::lonnet::getfile($filename);
	my $count=0;
	my $maxlength=-1;
	foreach (split ("\n", $file_output)) {
		$count+=int(length($_)/79);
		$count++;
		if (length($_) > $maxlength) { $maxlength = length($_); }
	}
	my $rows = $count;
	my $cols = $maxlength;
	$r->print('<textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
	&HTML::Entities::encode($file_output,'<>&"').'</textarea>');
	return OK;
	
}


sub handler { 
    my $r=shift;
    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
					    ['filename','listname']);
    my $filename = $ENV{'form.filename'};
    my $listname = $ENV{'form.listname'};
    my $source = &Apache::lonnet::metadata($filename,'sourceavail');
    if ($source ne 'open') {
	 	$ENV{'user.error.msg'}="$filename:cre:1:1:Source code not available";
	 	return HTTP_NOT_ACCEPTABLE;
    }
    if ((!&Apache::lonnet::allowed('cre',$filename)) ||
		(!&Apache::lonnet::allowed('bre',$filename))) {
		$ENV{'user.error.msg'}="$filename:bre:1:1:Access to resource denied";
		return HTTP_NOT_ACCEPTABLE;
    }
    if ($ENV{'form.action'} eq 'stage2') { 
    	my $author = &Apache::lonnet::metadata($filename,'authorspace');
    	$author =~ m|@|;
    	$author = $`; #This just tells who the author name is for later processing.
		&stage_2($r, $ENV{'form.filename'}, $author, $listname);
    } elsif($ENV{'form.action'} eq 'copy_stage') {
    		&copy_stage($r, $filename,$ENV{'form.listname'},$ENV{'form.newpath'});
   	} elsif($ENV{'form.action'} eq 'delete_confirm') {
   		&Apache::loncommon::content_type($r,'text/html');
			$r->send_http_header;
    		&delete_file($r, $ENV{'form.author'}, $ENV{'form.newpath'}, $ENV{'form.filename'}, $ENV{'form.path'}, '0');
   	} else {
			&Apache::loncommon::content_type($r,'text/html');
			$r->send_http_header;
			$r->print('		    <form name="copy" action="/adm/source/" target="_parent" method="post">
				<input type="button" value="Close Window" name="close" onClick="window.close()">
		      <input type="hidden" name="filename" value="'.$filename.'" />
		      <input type="hidden" name="listname" value="'.$listname.'" />
		      <input type="hidden" name="action" value="stage2" />
	              <input type="submit" value="Copy to CSTR" />
		    </form>');
			$r->print('<hr />');
			&print_item($r, $ENV{'form.filename'});
    	  }
    return OK;
}

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