version 1.5, 2003/02/25 22:50:11
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version 1.48, 2022/05/29 20:48:57
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
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# |
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# $Id$ |
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# |
# .tex help system web server handler |
# .tex help system web server handler |
# |
# |
# Copyright Michigan State University Board of Trustees |
# Copyright Michigan State University Board of Trustees |
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
# .tex file help handler |
# .tex file help handler |
# YEAR=2002 |
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# 7/4 Jeremy Bowers |
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package Apache::lonhelp; |
package Apache::lonhelp; |
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Line 35 use Apache::File();
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Line 37 use Apache::File();
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use Apache::loncommon(); |
use Apache::loncommon(); |
use Apache::lonacc(); |
use Apache::lonacc(); |
use Apache::lontexconvert(); |
use Apache::lontexconvert(); |
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use Apache::lonnavmaps; # for advancedUser |
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use Apache::lonlocal; |
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use Apache::lonnet; |
use tth(); |
use tth(); |
use GDBM_File(); |
use GDBM_File(); |
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use lib '/home/httpd/lib/perl/'; |
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use LONCAPA; |
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# This sub takes the name of a label in, and converts it to something |
# This sub takes the name of a label in, and converts it to something |
# that is a valid anchor name. |
# that is a valid anchor name. |
sub processLabelName |
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{ |
sub processLabelName { |
my ($name) = @_; |
my ($name) = @_; |
$name =~ tr/a-zA-Z0-9/_/cs; |
$name =~ tr/a-zA-Z0-9/_/cs; |
return $name; |
return $name; |
} |
} |
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# Serve out the Tex |
# Serve out the text |
sub serveTex |
sub servetext { |
{ |
my ($r,$uri,$text,$is_mobile,$firstfile) = @_; |
my ($tex, $r) = @_; |
my $bugs; |
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my %helpconfig = &Apache::lonnet::get_dom('configuration',['helpsettings'], |
$r->print(<<HEADER); |
$env{'request.role.domain'}); |
<html> |
if (ref($helpconfig{'helpsettings'}) eq 'HASH') { |
<head> |
if ($helpconfig{'helpsettings'}{'submitbugs'} eq '1') { |
<title>LON-CAPA Help</title> |
$bugs = &Apache::loncommon::help_open_bug('Documentation',&mt('Report a documentation bug')); |
</head> |
} |
<body bgcolor="#FFFFFF"> |
} |
<h3 style="font: sans-serif"><img align="right" |
my %lt = &Apache::lonlocal::texthash( |
src="/adm/help/gif/lonhelpheader.gif"/>LON-CAPA Help<hr /></h3> |
header => 'LON-CAPA Help', |
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search => 'Search LON-CAPA help', |
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query => 'Search', |
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); |
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my $goback; |
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if ((($env{'request.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) || |
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(($env{'request.deeplink.login'}) && ($env{'request.deeplink.target'} eq '_self'))) { |
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my $backicon = &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL').'/').'clickhere.gif'; |
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$goback = '<a href="javascript:history.go(-1);" class="LC_menubuttons_link" title="Go Back">'. |
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'<img src="'.$backicon.'" alt="'.&mt('Go Back').'" class="LC_icon" border="0" />'. |
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'</a> '; |
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} |
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$r->print(<<HEADER); |
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<h3 style="font: sans-serif"><img align="right" alt="help logo" |
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src="/adm/help/gif/lonhelpheader.gif" />$goback$lt{'header'}</h3><hr /> |
<!-- BEGIN --> |
<!-- BEGIN --> |
HEADER |
HEADER |
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if ($is_mobile) { |
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my $width = 500; |
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my $height = 400; |
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my $machine = &Apache::lonnet::absolute_url(); |
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$r->print(&Apache::loncommon::nicescroll_javascript('helpwrapper', |
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{cursorcolor => '#00F', |
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railalign => 'right', |
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railoffset => '{top:5,left:40}'}, |
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undef,1,$machine.$firstfile)); |
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$r->print('<div id="helpwrapper" style="height:'.$height.'px; width:'.$width.'px; overflow: auto;">'. |
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$text. |
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'</div>'); |
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} else { |
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$r->print($text); |
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} |
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if (&Apache::lonnavmaps::advancedUser()) { |
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$r->print(<<FOOTER); |
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<hr /><div class="LC_left_float"> |
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<form action="$uri" method="post"> |
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<fieldset><legend>$lt{'search'}</legend> |
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<input type="text" name="searchterm" size="40" /> |
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<input type="submit" value="$lt{'query'}" /> |
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</fieldset> |
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</form> |
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</div> |
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<div class="LC_left_float"> |
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</div> |
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<div style="padding:0;clear:both;margin:0;border:0"></div> |
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$bugs |
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FOOTER |
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} |
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$r->print($tex); |
$r->print(<<ENDBODY); |
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$r->print(<<FOOTER); |
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<!-- END --> |
<!-- END --> |
<hr /> |
ENDBODY |
<center><font size="-1"><a href="/adm/help/abouthelp.html">About |
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LON-CAPA help and More Help</a></font></center> |
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</body> |
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</html> |
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FOOTER |
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} |
} |
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# Render takes a tex fragment, transforms it for TtH, and returns the |
# Render takes a tex fragment, transforms it for TtH, and returns the |
# HTML equivalent |
# HTML equivalent |
sub render |
sub render { |
{ |
my ($tex, $docroot) = @_; |
my ($tex, $docroot, $serverroot) = @_; |
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tie (my %fragmentLabels, 'GDBM_File', $docroot . '/adm/help/fragmentLabels.gdbm', 0, 0); |
tie (my %fragmentLabels, 'GDBM_File', $docroot . '/adm/help/fragmentLabels.gdbm', 0, 0); |
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# This tells TtH what to do with captions, labels, and other |
# This tells TtH what to do with captions, labels, and other |
Line 90 sub render
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Line 137 sub render
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# LaTeX .aux files |
# LaTeX .aux files |
# absolute paths for use with help.loncapa.org |
# absolute paths for use with help.loncapa.org |
$tex =~ s| \\ref\{([^}]*)\} |
$tex =~ s| \\ref\{([^}]*)\} |
|'\\begin{html}<a href="http://' . $serverroot ."/adm/help/". |
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substr($fragmentLabels{$1}, 0, -4) . |
my $label=$1; |
'.hlp#' . processLabelName($1) . |
my $icon='/adm/help/help.png'; |
'"><img src="http://' . $serverroot . '/adm/help/gif/smallHelp.gif" border="0" /></a>' . |
my $ext; |
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if ($1!~/\.hlp$/) { |
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if (($1 =~ /^\w+\.manual\.pdf$/) && (-e $docroot.'/adm/help/'.$1)) { |
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$icon = '/adm/lonIcons/pdf.gif'; |
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} elsif ((!exists($fragmentLabels{$1})) && ($1!~/\.hlp$/)) { |
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&Apache::lonnet::logthis("ERROR: $1 not a valid help label"); |
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$label='Error'; |
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} else { |
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$label=substr($fragmentLabels{$1}, 0, -4); |
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$ext = '.hlp#' . &processLabelName($1); |
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} |
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} else { |
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$label=~s/\.hlp$//; |
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$ext = '.hlp#' . &processLabelName($1); |
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} |
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'\\begin{html}<a href="/adm/help/'. |
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$label . |
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$ext . |
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'"><img src="'.$icon.'" border="0" alt="'.&mt('Help').'" /></a>' . |
'\\end{html}' |
'\\end{html}' |
|gxe; |
|gxe; |
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Line 102 sub render
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Line 167 sub render
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# Figures leftover without captions |
# Figures leftover without captions |
$tex =~ s| \\includegraphics(\[[^]]*\])*\{([^}]*)\} |
$tex =~ s| \\includegraphics(\[[^]]*\])*\{([^}]*)\} |
| '\\begin{html}<img src="http://' . $serverroot . '/adm/help/gif/' . $2 . '.gif" border="2"'. |
| '\\begin{html}<img src="/adm/help/gif/' . $2 . '.gif" border="2"'. |
' bordercolor="#000000"/>\\end{html}' |
' bordercolor="#000000"/>\\end{html}' |
|gxe; |
|gxe; |
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$tex=&Apache::lontexconvert::converted(\$tex); |
$tex=&Apache::lontexconvert::tth_converted(\$tex); |
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# Finish backslashes |
# Finish backslashes |
$tex =~ s/###BACKSLASH###/'\\'/ge; |
$tex =~ s/###BACKSLASH###/'\\'/ge; |
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Line 180 sub render
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# Fix the pretty quotes |
# Fix the pretty quotes |
$tex =~ s/('')|(``)/"/g; #" to get emacs syntax highlighter happy |
$tex =~ s/('')|(``)/"/g; #" to get emacs syntax highlighter happy |
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$tex =~ s/`/'/g; |
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# For some reason all captions come out as "Figure 0:", so |
# For some reason all captions come out as "Figure 0:", so |
# just duck the issue... |
# just duck the issue... |
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$tex =~ s/Figure 0://g; |
$tex =~ s/Figure 0://g; |
$tex.=$Apache::lontexconvert::errorstring; |
$tex.=$Apache::lontexconvert::errorstring; |
untie %fragmentLabels; |
untie %fragmentLabels; |
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return $tex; |
return $tex; |
} |
} |
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sub handler |
sub listmatches { |
{ |
my ($docroot,$term,$subdir) =@_; |
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unless ($subdir) { $subdir=''; } |
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my $output=''; |
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opendir(DIR,$docroot.'/adm/help/tex/'.$subdir); |
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foreach my $filename (sort readdir(DIR)) { |
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if ($filename=~/\.tex$/) { |
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open(FH,$docroot.'/adm/help/tex/'.$subdir.$filename); |
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my $quote=''; |
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while (my $line=<FH>) { |
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if ($line=~/\Q$term\E/i) { |
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$line=~s/\\\w+//gs; |
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$line=~s/\{//gs; |
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$line=~s/\}//gs; |
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$line=~s/\\/ /gs; |
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$line=~s/\</\<\;/gs; |
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$line=~s/\>/\>\;/gs; |
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$line=~s/(\Q$term\E)/\<b\>$1\<\/b\>/gsi; |
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$quote.='<br />...'.$line.'...'; |
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} |
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} |
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close(FH); |
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if ($quote) { |
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my $title=$filename; |
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$title=~s/\_/ /gs; |
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$title=~s/\.tex$//; |
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$filename=~s/\.tex$/\.hlp/; |
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$output.='<li><a href="/adm/help/tex/'.$subdir.$filename.'">'.$title.'</a>'.$quote.'</li>'; |
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} |
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} |
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} |
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closedir(DIR); |
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return (($output?'<ul>'.$output.'</ul>':&mt('"[_1]" not found',$term)),$output); |
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} |
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sub handler { |
my $r = shift; |
my $r = shift; |
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my $docroot = $r->dir_config('lonDocRoot'); |
my $docroot = $r->dir_config('lonDocRoot'); |
my $serverroot = $ENV{'HTTP_HOST'}; |
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my $filename = substr ($ENV{'REQUEST_URI'} , |
&Apache::lonlocal::get_language_handle($r); |
rindex($ENV{'REQUEST_URI'}, '/') + 1, -4); |
&Apache::loncommon::content_type($r,"text/html"); |
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my $caller; |
# Security check on the file; the whole filename must consist |
if ($env{'form.searchterm'}=~/\w/) { |
# of nothing but alphanums, ' ,, or ., or the file |
$caller = 'search'; |
# will be "not found", no matter what. |
} |
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return HTTP_NOT_FOUND if ($filename !~ /\A[-0-9a-zA-z_'',.]+\Z/); |
my $starthash; |
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(my $file = Apache::File->new($docroot . "/adm/help/tex/".$filename.'.tex')) |
if ($env{'browser.mobile'}) { |
or return HTTP_NOT_FOUND; |
$starthash = { |
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only_body => 1, |
# get me my environment if it exists |
add_entries => { |
&Apache::lonacc::handler($r); |
'onload' => "javascript:expand_div('$caller');", |
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}, |
if ($ENV{'browser.mathml'}) { |
}; |
$r->content_type('text/xml'); |
} else { |
&tth::ttminit(); |
$starthash = { |
if ($ENV{'browser.unicode'}) { |
only_body => 1, |
&tth::ttmoptions('-L -u1'); |
}; |
} else { |
} |
&tth::ttmoptions('-L -u0'); |
my $firstfile; |
} |
my $start_page= |
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&Apache::loncommon::start_page('LON-CAPA Help',undef,$starthash); |
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my $text=''; |
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my $uri = $r->uri; |
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if ($env{'form.searchterm'}=~/\w/) { |
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($text,my $matches)=&listmatches($docroot,$env{'form.searchterm'},&Apache::lonlocal::current_language().'/'); |
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if ($matches) { |
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my ($englishresult,$englishmatches)=&listmatches($docroot,$env{'form.searchterm'}); |
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if ($englishmatches) { |
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$text.='<hr />'.$englishresult; |
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} |
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} else { |
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$text=&listmatches($docroot,$env{'form.searchterm'}); |
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} |
} else { |
} else { |
$r->content_type("text/html"); |
my $filenames = &unescape(substr($uri,rindex($uri,'/')+1,-4)); |
&tth::tthinit(); |
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if ($ENV{'browser.unicode'}) { |
# Security check on the file; the whole filename must consist |
&tth::tthoptions('-L -u1'); |
# of nothing but alphanums, ' ,, or ., or the file |
} else { |
# will be "not found", no matter what. |
&tth::tthoptions('-L -u0'); |
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return HTTP_NOT_FOUND if ($filenames !~ /\A[-0-9a-zA-z_'',:.]+\Z/); |
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# Join together the tex files, return HTTP_NOT_FOUND if any of |
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# them are not found |
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my $tex = ''; |
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# Since in insertlist.tab I want to specify multiple files, |
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# and insertlist.tab also uses commas, I need something else |
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# so replace : with , |
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$filenames =~ s/:/,/g; |
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my @files = split(/,/, $filenames); |
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$firstfile = '/adm/help/'.$files[0].'.hlp'; |
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my $count = 0; |
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for my $filename (@files) { |
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if (-e $docroot.'/adm/help/tex/'. |
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&Apache::lonlocal::current_language().'/'. |
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$filename.'.tex') { |
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$filename=&Apache::lonlocal::current_language().'/'.$filename; |
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} |
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(my $file = Apache::File->new($docroot |
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. '/adm/help/tex/'.$filename.'.tex')) |
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or return HTTP_NOT_FOUND; |
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$tex .= join('', <$file>); |
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$count ++; |
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if (scalar(@files) > $count) { |
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$tex .= '\hrulefill'; |
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} |
} |
} |
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$text = &render($tex, $docroot); |
} |
} |
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my $tex = join('', <$file>); |
$r->send_http_header; |
$tex = render($tex, $docroot, $serverroot); |
$r->print($start_page); |
serveTex($tex, $r); |
&servetext($r,$uri,$text,$env{'browser.mobile'},$firstfile); |
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$r->print(&Apache::loncommon::end_page()); |
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return OK; |
return OK; |
} |
} |