version 1.7, 2001/12/13 14:02:54
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version 1.20, 2006/09/13 21:43:26
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# |
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
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# |
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# (Handler to retrieve an old version of a file |
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# |
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# (Publication Handler |
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# |
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# (TeX Content Handler |
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# |
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# 05/29/00,05/30,10/11 Gerd Kortemeyer) |
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# |
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# 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer |
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# 03/23 Guy Albertelli |
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# 03/24,03/29 Gerd Kortemeyer) |
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# |
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# 03/31,04/03 Gerd Kortemeyer) |
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# |
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# 05/02/01,05/09 Gerd Kortemeyer |
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# 12/13 Scott Harrison |
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# |
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### |
### |
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package Apache::londiff; |
package Apache::londiff; |
Line 50 package Apache::londiff;
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Line 32 package Apache::londiff;
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use strict; |
use strict; |
use Apache::File; |
use Apache::File; |
use File::Copy; |
use File::Copy; |
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use File::Compare; |
use Algorithm::Diff qw(diff); |
use Algorithm::Diff qw(diff); |
use Apache::Constants qw(:common :http :methods); |
use Apache::Constants qw(:common :http :methods); |
use Apache::loncacc; |
use Apache::loncacc(); |
use Apache::lonnet(); |
use Apache::lonnet; |
use Apache::loncommon(); |
use Apache::loncommon(); |
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use Apache::lonretrieve(); |
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use Apache::lonlocal; |
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sub get_split_file { |
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my ($fn,$style)=@_; |
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my $f1; |
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my @f1; |
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if ($style eq 'local') { |
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if (-e $fn) { |
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my $fh=Apache::File->new($fn); |
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my $line; |
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while($line=<$fh>) { |
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$f1.=$line; |
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} |
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} |
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} elsif ($style eq 'remote') { |
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my $f1=&Apache::lonnet::getfile($fn); |
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} |
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if ($f1=~/\r/) { |
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@f1=split(/\r/,&Apache::lonnet::getfile($fn)); |
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foreach my $line (@f1) { |
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$line=~s/\n//g; |
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} |
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} else { |
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@f1=split(/\n/,&Apache::lonnet::getfile($fn)); |
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} |
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return @f1; |
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} |
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sub are_different_files { |
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my ($fileone,$filetwo)=@_; |
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return &compare($fileone,$filetwo); |
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} |
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sub handler { |
sub handler { |
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my $r=shift; |
my $r=shift; |
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# Get query string for limited number of parameters |
# Get query string for limited number of parameters |
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foreach (split(/&/,$ENV{'QUERY_STRING'})) { |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
my ($name, $value) = split(/=/,$_); |
['filename','versiontwo','versionone','filetwo']); |
$value =~ tr/+/ /; |
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$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
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if (($name eq 'filename') || ($name eq 'versiontwo') || |
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($name eq 'versionone')) { |
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unless ($ENV{'form.'.$name}) { |
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$ENV{'form.'.$name}=$value; |
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} |
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} |
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} |
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# Get the files |
# Get the files |
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my $cuname=$ENV{'user.name'}; |
my $cuname=$env{'user.name'}; |
my $cudom=$ENV{'user.domain'}; |
my $cudom=$env{'user.domain'}; |
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unless (($cuname,$cudom)= |
if ($env{'form.filename'}=~/^\/res\//) { |
&Apache::loncacc::constructaccess($ENV{'form.filename'}, |
($cudom,$cuname,$env{'form.filename'})= |
$r->dir_config('lonDefDomain'))) { |
($env{'form.filename'}=~/^\/res\/(\w+)\/(\w+)\/(.*)$/); |
$r->log_reason($cuname.' at '.$cudom. |
} else { |
' trying to get diffs file '.$ENV{'form.filename'}. |
unless (($cuname,$cudom)= |
' - not authorized', |
&Apache::loncacc::constructaccess($env{'form.filename'}, |
$r->filename); |
$r->dir_config('lonDefDomain'))) { |
return HTTP_NOT_ACCEPTABLE; |
$r->log_reason($cuname.' at '.$cudom. |
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' trying to get diffs file '.$env{'form.filename'}. |
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' - not authorized', |
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$r->filename); |
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return HTTP_NOT_ACCEPTABLE; |
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} |
} |
} |
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my $efn=$ENV{'form.filename'}; |
my $efn=$env{'form.filename'}; |
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$efn=~s/\/\~(\w+)//g; |
$efn=~s/\/\~(\w+)//g; |
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my @f1=(); |
my @f1=(); |
my @f2=(); |
my @f2=(); |
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$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
$r->send_http_header; |
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$r->print('<html><head><title>LON-CAPA Construction Diffs</title></head>'); |
$r->print(&Apache::loncommon::start_page('Resource Differences')); |
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$r->print('<body bgcolor="#FFFFFF">'); |
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$r->print('<h1>Compare versions of <tt>'.$efn.'</tt></h1>'); |
$r->print('<h1>'.($env{'form.filetwo'}?'':&mt('Compare versions of')). |
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' <tt>'.$efn.'</tt></h1>'); |
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if (($cuname ne $ENV{'user.name'}) || ($cudom ne $ENV{'user.domain'})) { |
if (($cuname ne $env{'user.name'}) || ($cudom ne $env{'user.domain'})) { |
$r->print('<h3><font color=red>Co-Author: '.$cuname.' at '.$cudom. |
$r->print('<h3><font color=red>Co-Author: '.$cuname.' at '.$cudom. |
'</font></h3>'); |
'</font></h3>'); |
} |
} |
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if (&Apache::loncommon::fileembstyle(($efn=~/\.(\w+)$/)) eq |
if (&Apache::loncommon::fileembstyle(($efn=~/\.(\w+)$/)) eq 'ssi' |
'ssi') { |
|| $efn =~ /\.meta$/) { |
if ($ENV{'form.versionone'} eq 'priv') { |
$r->print('<p><font color="red">'); |
my $fn='/home/'.$cuname.'/public_html/'.$efn; |
if ($env{'form.versionone'} eq 'priv') { |
if (-e $fn) { |
my $fn='/home/'.$cuname.'/public_html/'.$efn; |
my $fh=Apache::File->new($fn); |
@f1=&get_split_file($fn,'local'); |
my $line; |
$r->print('<b>'.&mt('Construction Space Version').'</b>'); |
while($line=<$fh>) { |
} else { |
chomp($line); |
my $fn= |
$f1[$#f1+1]=$line; |
'/home/httpd/html/res/'.$cudom.'/'.$cuname.'/'; |
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if ($env{'form.versionone'}) { |
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my ($main,$suffix,$is_meta)= |
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&Apache::lonretrieve::get_file_info($efn); |
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$fn.=($efn =~m|(.*/)[^/]+|)[0]; |
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# add on to $fn the path information in $efn |
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$fn.=$main.'.'.$env{'form.versionone'}.'.'.$suffix; |
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$r->print('<b>'.&mt('Version').' '.$env{'form.versionone'}.'</b>'); |
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} else { |
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$fn.=$efn; |
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$r->print('<b>'.&mt('Current Version').'</b>'); |
} |
} |
} |
@f1=&get_split_file($fn,'remote'); |
$r->print('<h3>Construction Space Version</h3>'); |
} |
} else { |
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my $fn= |
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'/home/httpd/html//res/'.$cudom.'/'.$cuname.'/'; |
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if ($ENV{'form.versionone'}) { |
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my ($main,$suffix)=($efn=~/^(.+)\.(\w+)$/); |
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$fn.=$main.'.'.$ENV{'form.versionone'}.'.'.$suffix; |
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$r->print('<h3>Version '.$ENV{'form.versionone'}.'</h3>'); |
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} else { |
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$fn.=$efn; |
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$r->print('<h3>Current Version</h3>'); |
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} |
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@f1=split(/\n/,&Apache::lonnet::getfile($fn)); |
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} |
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$r->print('versus'); |
$r->print('</font><br />'.&mt('versus').'<br /><font color="green">'); |
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if ($ENV{'form.versiontwo'} eq 'priv') { |
if ($env{'form.filetwo'}) { |
my $fn='/home/'.$cuname.'/public_html/'.$efn; |
my $efn2=$env{'form.filetwo'}; |
if (-e $fn) { |
$efn2=~s/\/\~(\w+)//g; |
my $fh=Apache::File->new($fn); |
my $fn='/home/'.$cuname.'/public_html/'.$efn2; |
my $line; |
@f2=&get_split_file($fn,'local'); |
while($line=<$fh>) { |
$r->print('<tt>'.$efn2.'</tt>'); |
chomp($line); |
} elsif ($env{'form.versiontwo'} eq 'priv') { |
$f2[$#f2+1]=$line; |
my $fn='/home/'.$cuname.'/public_html/'.$efn; |
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@f2=&get_split_file($fn,'local'); |
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$r->print('<b>'.&mt('Construction Space Version').'</b>'); |
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} else { |
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my $fn= |
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'/home/httpd/html/res/'.$cudom.'/'.$cuname.'/'; |
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if ($env{'form.versiontwo'}) { |
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my ($main,$suffix,$is_meta)= |
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&Apache::lonretrieve::get_file_info($efn); |
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# add on to $fn the path information in $efn |
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$fn.=($efn =~m|(.*/)[^/]+|)[0]; |
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$fn.=$main.'.'.$env{'form.versiontwo'}.'.'.$suffix; |
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$r->print('<b>'.&mt('Version').' '.$env{'form.versiontwo'}.'</b>'); |
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} else { |
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$fn.=$efn; |
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$r->print('<b>'.&mt('Current Version').'</b>'); |
} |
} |
} |
@f2=&get_split_file($fn,'remote'); |
$r->print('<h3>Construction Space Version</h3>'); |
} |
} else { |
$r->print('</font></p>'); |
my $fn= |
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'/home/httpd/html/res/'.$cudom.'/'.$cuname.'/'; |
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if ($ENV{'form.versiontwo'}) { |
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my ($main,$suffix)=($efn=~/^(.+)\.(\w+)$/); |
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$fn.=$main.'.'.$ENV{'form.versiontwo'}.'.'.$suffix; |
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$r->print('<h3>Version '.$ENV{'form.versiontwo'}.'</h3>'); |
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} else { |
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$fn.=$efn; |
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$r->print('<h3>Current Version</h3>'); |
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} |
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@f2=split(/\n/,&Apache::lonnet::getfile($fn)); |
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} |
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# Run diff |
# Run diff |
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my $diffs = diff(\@f1, \@f2); |
my $diffs = diff(\@f1, \@f2); |
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# Start page output |
# Start page output |
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my $chunk; |
my $chunk; |
my $line; |
my $line; |
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$r->print('<pre>'); |
$r->print('<pre>'); |
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foreach $chunk (@$diffs) { |
foreach $chunk (@$diffs) { |
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foreach $line (@$chunk) { |
foreach $line (@$chunk) { |
my ($sign, $lineno, $text) = @$line; |
my ($sign, $lineno, $text) = @$line; |
$text=~s/\</\<\;/g; |
$text=~s/\</\<\;/g; |
$text=~s/\>/\>\;/g; |
$text=~s/\>/\>\;/g; |
$lineno=substr($lineno.' ',0,7); |
$lineno=substr($lineno.' ',0,7); |
$r->print('<font color='.(($sign eq '+')?'green':'red').'>'. |
$r->print('<font color='.(($sign eq '+')?'green':'red').'>'. |
$sign.' '.$lineno.' '.$text."</font>\n"); |
$sign.' '.$lineno.' '.$text."</font>\n"); |
} |
} |
$r->print("<hr>\n"); |
$r->print("<hr>\n"); |
} |
} |
$r->print('</pre>'); |
$r->print('</pre>'); |
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} else { |
} else { |
$r->print('<h1><font color=red>Binary File</font></h1>'); |
$r->print('<h1><font color=red>'.&mt('Binary File').'</font></h1>'); |
} |
} |
$r->print('</body></html>'); |
$r->print('<center><a href="javascript:window.close();">'.&mt('Close This Window').'</a></center>'); |
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$r->print(&Apache::loncommon::end_page()); |
return OK; |
return OK; |
} |
} |
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