version 1.21, 2006/03/15 23:41:49
|
version 1.41, 2013/07/15 17:42:11
|
Line 1
|
Line 1
|
# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
|
# |
|
# $Id$ |
|
# |
# .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 |
Line 24
|
Line 27
|
# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
# .tex file help handler |
# .tex file help handler |
# YEAR=2002 |
|
# 7/4 Jeremy Bowers |
|
|
|
package Apache::lonhelp; |
package Apache::lonhelp; |
|
|
Line 40 use Apache::lonlocal;
|
Line 42 use Apache::lonlocal;
|
use Apache::lonnet; |
use Apache::lonnet; |
use tth(); |
use tth(); |
use GDBM_File(); |
use GDBM_File(); |
|
use lib '/home/httpd/lib/perl/'; |
|
use LONCAPA; |
|
|
|
|
# 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. |
Line 52 sub processLabelName {
|
Line 57 sub processLabelName {
|
|
|
# Serve out the text |
# Serve out the text |
sub servetext { |
sub servetext { |
my ($r,$text) = @_; |
my ($r,$text,$is_mobile,$firstfile) = @_; |
my $html=&Apache::lonxml::xmlbegin(); |
my $bugs=&Apache::loncommon::help_open_bug('Documentation',&mt('Report a documentation bug')); |
my $htmlend=&Apache::lonxml::xmlend(); |
my $morehelp;#=&Apache::loncommon::help_open_menu(undef,undef,1,undef,undef,undef,undef,'Help and Assistance Menu'); |
my $bugs=&Apache::loncommon::help_open_bug('Documentation'); |
|
my $header=&mt('LON-CAPA Help'); |
my $header=&mt('LON-CAPA Help'); |
$r->print(<<HEADER); |
$r->print(<<HEADER); |
$html |
<h3 style="font: sans-serif"><img align="right" alt="help logo" |
<head> |
src="/adm/help/gif/lonhelpheader.gif"/>$header</h3><hr /> |
<title>LON-CAPA Help</title> |
|
</head> |
|
<body bgcolor="#FFFFFF"> |
|
<h3 style="font: sans-serif"><img align="right" |
|
src="/adm/help/gif/lonhelpheader.gif"/>$header<hr />$bugs</h3> |
|
<!-- BEGIN --> |
<!-- BEGIN --> |
HEADER |
HEADER |
|
if ($is_mobile) { |
$r->print($text); |
my $width = 500; |
|
my $height = 400; |
|
my $machine = &Apache::lonnet::absolute_url(); |
|
$r->print(&Apache::loncommon::nicescroll_javascript('helpwrapper', |
|
{cursorcolor => '#00F', |
|
railalign => 'right', |
|
railoffset => '{top:5,left:40}'}, |
|
undef,1,$machine.$firstfile)); |
|
$r->print('<div id="helpwrapper" style="height:'.$height.'px; width:'.$width.'px; overflow: auto;">'. |
|
$text. |
|
'</div>'); |
|
} else { |
|
$r->print($text); |
|
} |
|
|
if (&Apache::lonnavmaps::advancedUser()) { |
if (&Apache::lonnavmaps::advancedUser()) { |
my $search=&mt('Search LON-CAPA help'); |
my $search=&mt('Search LON-CAPA help'); |
my $about=&mt('About LON-CAPA help and More Help'); |
my $query=&mt('Search'); |
|
my $uri = $r->uri; |
$r->print(<<FOOTER); |
$r->print(<<FOOTER); |
<!-- END --> |
<hr /><form action="$uri" method="post"> |
<hr /><form method="post"> |
<label>$search: <input type="text" name="searchterm" size="40" /></label><input type="submit" value="$query" /> |
$search: <input type="text" name="searchterm" size="40" /><br /> |
</form> |
<a href="/adm/help/abouthelp.html">$about</a> |
<br /> |
</body> |
$bugs |
$htmlend |
$morehelp |
FOOTER |
FOOTER |
|
|
} |
} |
|
|
$r->print(<<ENDBODY); |
$r->print(<<ENDBODY); |
<!-- END --> |
<!-- END --> |
</body> |
|
$htmlend |
|
ENDBODY |
ENDBODY |
|
|
} |
} |
|
|
# Render takes a tex fragment, transforms it for TtH, and returns the |
# Render takes a tex fragment, transforms it for TtH, and returns the |
# HTML equivalent |
# HTML equivalent |
sub render { |
sub render { |
my ($tex, $docroot, $serverroot) = @_; |
my ($tex, $docroot) = @_; |
tie (my %fragmentLabels, 'GDBM_File', $docroot . '/adm/help/fragmentLabels.gdbm', 0, 0); |
tie (my %fragmentLabels, 'GDBM_File', $docroot . '/adm/help/fragmentLabels.gdbm', 0, 0); |
|
|
# This tells TtH what to do with captions, labels, and other |
# This tells TtH what to do with captions, labels, and other |
Line 104 sub render {
|
Line 118 sub render {
|
# absolute paths for use with help.loncapa.org |
# absolute paths for use with help.loncapa.org |
$tex =~ s| \\ref\{([^}]*)\} |
$tex =~ s| \\ref\{([^}]*)\} |
| |
| |
if (not(exists($fragmentLabels{$1}))) { |
my $label=$1; |
&Apache::lonnet::logthis("ERROR: $1 not a valid help label"); |
my $icon='/adm/help/help.png'; |
}; |
my $ext; |
'\\begin{html}<a href="http://' . $serverroot ."/adm/help/". |
if ($1!~/\.hlp$/) { |
substr($fragmentLabels{$1}, 0, -4) . |
if (($1 =~ /^\w+\.manual\.pdf$/) && (-e $docroot.'/adm/help/'.$1)) { |
'.hlp#' . &processLabelName($1) . |
$icon = '/adm/lonIcons/pdf.gif'; |
'"><img src="http://' . $serverroot . '/adm/help/gif/smallHelp.gif" border="0" /></a>' . |
} elsif ((!exists($fragmentLabels{$1})) && ($1!~/\.hlp$/)) { |
|
&Apache::lonnet::logthis("ERROR: $1 not a valid help label"); |
|
$label='Error'; |
|
} else { |
|
$label=substr($fragmentLabels{$1}, 0, -4); |
|
$ext = '.hlp#' . &processLabelName($1); |
|
} |
|
} else { |
|
$label=~s/\.hlp$//; |
|
$ext = '.hlp#' . &processLabelName($1); |
|
} |
|
'\\begin{html}<a href="/adm/help/'. |
|
$label . |
|
$ext . |
|
'"><img src="'.$icon.'" border="0" /></a>' . |
'\\end{html}' |
'\\end{html}' |
|gxe; |
|gxe; |
|
|
Line 119 sub render {
|
Line 147 sub render {
|
|
|
# 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; |
|
|
Line 136 sub render {
|
Line 164 sub render {
|
# just duck the issue... |
# just duck the issue... |
|
|
$tex =~ s/Figure 0://g; |
$tex =~ s/Figure 0://g; |
$tex.=$Apache::lontexconvert::errorstring; |
$tex.=$Apache::lontexconvert::errorstring; |
untie %fragmentLabels; |
untie %fragmentLabels; |
|
|
return $tex; |
return $tex; |
} |
} |
|
|
|
sub listmatches { |
|
my ($docroot,$term,$subdir) =@_; |
|
unless ($subdir) { $subdir=''; } |
|
my $output=''; |
|
opendir(DIR,$docroot.'/adm/help/tex/'.$subdir); |
|
foreach my $filename (sort readdir(DIR)) { |
|
if ($filename=~/\.tex$/) { |
|
open(FH,$docroot.'/adm/help/tex/'.$subdir.$filename); |
|
my $quote=''; |
|
while (my $line=<FH>) { |
|
if ($line=~/\Q$term\E/i) { |
|
$line=~s/\\\w+//gs; |
|
$line=~s/\{//gs; |
|
$line=~s/\}//gs; |
|
$line=~s/\\/ /gs; |
|
$line=~s/\</\<\;/gs; |
|
$line=~s/\>/\>\;/gs; |
|
$line=~s/(\Q$term\E)/\<b\>$1\<\/b\>/gsi; |
|
$quote.='<br />...'.$line.'...'; |
|
} |
|
} |
|
close(FH); |
|
if ($quote) { |
|
my $title=$filename; |
|
$title=~s/\_/ /gs; |
|
$title=~s/\.tex$//; |
|
$filename=~s/\.tex$/\.hlp/; |
|
$output.='<li><a href="/adm/help/tex/'.$subdir.$filename.'">'.$title.'</a>'.$quote.'</li>'; |
|
} |
|
} |
|
} |
|
closedir(DIR); |
|
return (($output?'<ul>'.$output.'</ul>':&mt('"[_1]" not found',$term)),$output); |
|
} |
|
|
sub handler { |
sub handler { |
my $r = shift; |
my $r = shift; |
|
|
my $docroot = $r->dir_config('lonDocRoot'); |
my $docroot = $r->dir_config('lonDocRoot'); |
my $serverroot = $ENV{'HTTP_HOST'}; |
|
|
|
&Apache::lonlocal::get_language_handle($r); |
&Apache::lonlocal::get_language_handle($r); |
|
&Apache::loncommon::content_type($r,"text/html"); |
|
my $caller; |
|
if ($env{'form.searchterm'}=~/\w/) { |
|
$caller = 'search'; |
|
} |
|
my $starthash = { |
|
only_body => 1, |
|
add_entries => { |
|
'onload' => "javascript:expand_div('$caller');", |
|
}, |
|
}; |
|
|
|
my $firstfile; |
|
my $start_page= |
|
&Apache::loncommon::start_page('LON-CAPA Help',undef,$starthash); |
my $text=''; |
my $text=''; |
if ($env{'form.searchterm'}=~/\w/) { |
if ($env{'form.searchterm'}=~/\w/) { |
|
($text,my $matches)=&listmatches($docroot,$env{'form.searchterm'},&Apache::lonlocal::current_language().'/'); |
|
if ($matches) { |
|
my ($englishresult,$englishmatches)=&listmatches($docroot,$env{'form.searchterm'}); |
|
if ($englishmatches) { |
|
$text.='<hr />'.$englishresult; |
|
} |
|
} else { |
|
$text=&listmatches($docroot,$env{'form.searchterm'}); |
|
} |
} else { |
} else { |
my $filenames = &Apache::lonnet::unescape(substr ($ENV{'REQUEST_URI'} , |
my $filenames = &unescape(substr($ENV{'REQUEST_URI'} , |
rindex($ENV{'REQUEST_URI'}, '/') + 1, -4)); |
rindex($ENV{'REQUEST_URI'}, '/') + 1, -4)); |
|
|
# Security check on the file; the whole filename must consist |
# Security check on the file; the whole filename must consist |
# of nothing but alphanums, ' ,, or ., or the file |
# of nothing but alphanums, ' ,, or ., or the file |
# will be "not found", no matter what. |
# will be "not found", no matter what. |
|
|
return HTTP_NOT_FOUND if ($filenames !~ /\A[-0-9a-zA-z_'',:.]+\Z/); |
return HTTP_NOT_FOUND if ($filenames !~ /\A[-0-9a-zA-z_'',:.]+\Z/); |
|
|
# Join together the tex files, return HTTP_NOT_FOUND if any of |
# Join together the tex files, return HTTP_NOT_FOUND if any of |
# them are not found |
# them are not found |
my $tex = ''; |
my $tex = ''; |
# Since in insertlist.tab I want to specify multiple files, |
# Since in insertlist.tab I want to specify multiple files, |
# and insertlist.tab also uses commas, I need something else |
# and insertlist.tab also uses commas, I need something else |
# so replace : with , |
# so replace : with , |
$filenames =~ s/:/,/g; |
$filenames =~ s/:/,/g; |
my @files = split(/,/, $filenames); |
my @files = split(/,/, $filenames); |
|
$firstfile = '/adm/help/'.$files[0].'.hlp'; |
for my $filename (@files) { |
|
if (-e $docroot.'/adm/help/tex/'. |
for my $filename (@files) { |
&Apache::lonlocal::current_language().'/'. |
if (-e $docroot.'/adm/help/tex/'. |
$filename.'.tex') { |
&Apache::lonlocal::current_language().'/'. |
$filename=&Apache::lonlocal::current_language().'/'.$filename; |
$filename.'.tex') { |
} |
$filename=&Apache::lonlocal::current_language().'/'.$filename; |
(my $file = Apache::File->new($docroot |
} |
. '/adm/help/tex/'.$filename.'.tex')) |
(my $file = Apache::File->new($docroot |
|
. '/adm/help/tex/'.$filename.'.tex')) |
or return HTTP_NOT_FOUND; |
or return HTTP_NOT_FOUND; |
$tex .= join('', <$file>); |
$tex .= join('', <$file>); |
} |
} |
|
|
if ($env{'browser.mathml'}) { |
$text = &render($tex, $docroot); |
&Apache::loncommon::content_type($r,'text/xml'); |
|
&tth::ttminit(); |
|
if ($env{'browser.unicode'}) { |
|
&tth::ttmoptions('-L -u1'); |
|
} else { |
|
&tth::ttmoptions('-L -u0'); |
|
} |
|
} else { |
|
&Apache::loncommon::content_type($r,"text/html"); |
|
&tth::tthinit(); |
|
if ($env{'browser.unicode'}) { |
|
&tth::tthoptions('-L -u1'); |
|
} else { |
|
&tth::tthoptions('-L -u0'); |
|
} |
|
} |
|
$text = &render($tex, $docroot, $serverroot); |
|
} |
} |
|
|
$r->send_http_header; |
$r->send_http_header; |
&servetext($r,$text); |
$r->print($start_page); |
|
&servetext($r,$text,$env{'browser.mobile'},$firstfile); |
|
$r->print(&Apache::loncommon::end_page()); |
|
|
return OK; |
return OK; |
} |
} |
|
|