version 1.97, 2009/08/12 20:31:08
|
version 1.105, 2011/02/10 19:28:29
|
Line 49 use lib '/home/httpd/lib/perl/';
|
Line 49 use lib '/home/httpd/lib/perl/';
|
use LONCAPA; |
use LONCAPA; |
use URI::Escape; |
use URI::Escape; |
use IO::Socket::INET; |
use IO::Socket::INET; |
use IO::Socket::SSL; |
|
|
|
# ====================================================================== Header |
# ====================================================================== Header |
|
|
Line 248 sub mimetex_valign {
|
Line 247 sub mimetex_valign {
|
my $valign = 0; |
my $valign = 0; |
my $lonhost = $Apache::lonnet::perlvar{'lonHostID'}; |
my $lonhost = $Apache::lonnet::perlvar{'lonHostID'}; |
my $hostname = &Apache::lonnet::hostname($lonhost); |
my $hostname = &Apache::lonnet::hostname($lonhost); |
my $protocol = $Apache::lonnet::protocol{$lonhost}; |
|
my $path = '/cgi-bin/mimetex.cgi?'.$esc_texstring; |
my $path = '/cgi-bin/mimetex.cgi?'.$esc_texstring; |
my $socket; |
my $socket; |
&Apache::lonxml::start_alarm(); |
&Apache::lonxml::start_alarm(); |
if ($protocol eq 'https') { |
my $socket = IO::Socket::INET->new(PeerAddr => $hostname, |
$socket = IO::Socket::SSL->new(PeerAddr => $hostname, |
|
PeerPort => 'https(443)', |
|
Proto => 'tcp'); |
|
} else { |
|
$socket = IO::Socket::INET->new(PeerAddr => $hostname, |
|
PeerPort => 'http(80)', |
PeerPort => 'http(80)', |
Proto => 'tcp'); |
Proto => 'tcp'); |
} |
|
if ($socket) { |
if ($socket) { |
my $headreq = "HEAD $path HTTP/1.0\r\n\r\n"; |
my $headreq = "HEAD $path HTTP/1.0\r\n\r\n"; |
print $socket $headreq; |
print $socket $headreq; |
Line 269 sub mimetex_valign {
|
Line 261 sub mimetex_valign {
|
$valign = $1; |
$valign = $1; |
} |
} |
} |
} |
if ($protocol eq 'https') { |
$socket->close(); |
$socket->close(SSL_no_shutdown => 1, |
|
SSL_ctx_free => 1); |
|
} else { |
|
$socket->close(); |
|
} |
|
} |
} |
&Apache::lonxml::end_alarm(); |
&Apache::lonxml::end_alarm(); |
return $valign; |
return $valign; |
Line 316 sub converted {
|
Line 303 sub converted {
|
return &jsMath_converted($string); |
return &jsMath_converted($string); |
} elsif ($mode =~ /mimetex/i) { |
} elsif ($mode =~ /mimetex/i) { |
return &mimetex_converted($string); |
return &mimetex_converted($string); |
|
} elsif ($mode =~ /raw/i) { |
|
return $$string; |
} |
} |
return &tth_converted($string); |
return &tth_converted($string); |
} |
} |
Line 324 sub converted {
|
Line 313 sub converted {
|
|
|
sub to_convert { |
sub to_convert { |
my ($string) = @_; |
my ($string) = @_; |
|
&init_tth(); |
$string=~s/\<br\s*\/?\>/ /gs; |
$string=~s/\<br\s*\/?\>/ /gs; |
# $string=~s/\s/ /gs; |
# $string=~s/\s/ /gs; |
$string=&HTML::Entities::decode($string); |
$string=&HTML::Entities::decode($string); |
Line 332 sub to_convert {
|
Line 322 sub to_convert {
|
|
|
sub smiley { |
sub smiley { |
my $expression=shift; |
my $expression=shift; |
if ($env{'browser.imagesuppress'} eq 'on') { return $expression; } |
my %smileys=( |
my %smileys=('\:\-\)' => 'smiley', |
'\:\-*\)' => 'face-smile.png', |
'8\-\)' => 'coolsmile', |
'8\-\)' => 'face-cool.png', |
'8\-(I|\|)' => 'coolindiff', |
'8\-(I|\|)' => 'face-glasses.png', |
':\-(I|\|)' => 'neutral', |
'\:\-(I|\|)' => 'face-plain.png', |
'\:\-(o|O|\(\))' => 'shocked', |
'\:\-(o|O|\(\))' => 'face-surprise.png', |
':\-\(' => 'frowny', |
':\-\(' => 'face-sad.png', |
'\;\-\)' => 'wink', |
'\;\-\)' => 'face-wink.png', |
'\:\-P' => 'baeh', |
'\:\-(P|p)' => 'face-raspberry.png', |
'\:\-(\\\|\\/)' => 'hrrm', |
'\:\-(\\\|\\/)' => 'face-uncertain.png', |
'\:\-D' => 'bigsmile', |
'\:\-D' => 'face-smile-big.png', |
'\:\-C' => 'angry', |
'\:\-(C|\@)' => 'face-angry.png', |
'\:(\'|\`)\-\(' => 'cry', |
'\:(\'|\`)\-*\(' => 'face-crying.png', |
'\:\-(X|\#)' => 'lipsrsealed', |
'\:\-(X|x|\#)' => 'face-quiet.png', |
'\:\-S' => 'huh'); |
'\:\-(s|S)' => 'face-uncertain.png', |
|
'\:\-\$' => 'face-embarrassed.png', |
|
'\:\-\*' => 'face-kiss.png', |
|
'\+O\(' => 'face-sick.png', |
|
'(\<\;3|\(heart\))' => 'heart.png', |
|
'\(rose\)' => 'rose.png', |
|
'\(pizza\)' => 'food-pizza.png', |
|
'\(cake\)' => 'food-cake.png', |
|
'\(ninja\)' => 'face-ninja.png', |
|
'\(pirate\)' => 'face-pirate.png', |
|
'\((agree|yes)\)' => 'opinion-agree.png', |
|
'\((disagree|nay)\)' => 'opinion-disagree.png', |
|
'(o|O)\-\)' => 'face-angel.png', |
|
); |
my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'}; |
my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'}; |
foreach my $smiley (keys(%smileys)) { |
foreach my $smiley (keys(%smileys)) { |
$expression=~s/$smiley/\<img src="$iconpath\/$smileys{$smiley}.gif" \/\>/gs; |
$expression=~s/$smiley/\<img src="$iconpath\/$smileys{$smiley}" \/\>/gs; |
} |
} |
return $expression; |
return $expression; |
} |
} |
Line 357 sub smiley {
|
Line 360 sub smiley {
|
sub msgtexconverted { |
sub msgtexconverted { |
my ($message,$email) = @_; |
my ($message,$email) = @_; |
$errorstring=''; |
$errorstring=''; |
&init_tth(); |
|
my $outmessage=''; |
my $outmessage=''; |
my $tex=0; |
my $tex=0; |
foreach my $fragment (split(/(?:\<\;|\<)\/*m\s*(?:\>\;|\>)/i,$message)) { |
foreach my $fragment (split(/(?:\<\;|\<)\/*m\s*(?:\>\;|\>)/i,$message)) { |
Line 378 sub msgtexconverted {
|
Line 380 sub msgtexconverted {
|
foreach my $fragment (split(/(?:\<\;|\<)\/*algebra\s*(?:\>\;|\>)/i, |
foreach my $fragment (split(/(?:\<\;|\<)\/*algebra\s*(?:\>\;|\>)/i, |
$message)) { |
$message)) { |
if ($tex) { |
if ($tex) { |
|
my $algebra = &algebra($fragment, 'web', undef, undef, undef, undef, 'tth'); |
if ($email) { |
if ($email) { |
$outmessage.='</pre><tt>'.&algebra($fragment,'web').'</tt><pre>'; |
$outmessage.='</pre><tt>'.$algebra.'</tt><pre>'; |
$tex=0; |
$tex=0; |
} else { |
} else { |
$outmessage.=&algebra($fragment,'web'); |
$outmessage.=$algebra; |
$tex=0; |
$tex=0; |
} |
} |
} else { |
} else { |
$outmessage.=$fragment; |
$outmessage.=$fragment; |
$tex=1; |
$tex=1; |
} |
} |
} |
} |
Line 399 sub msgtexconverted {
|
Line 402 sub msgtexconverted {
|
|
|
sub algebra { |
sub algebra { |
use AlgParser; |
use AlgParser; |
|
my ($string,$target,$style,$parstack,$safeeval,$tth)=@_; |
my ($string,$target,$style,$parstack,$safeeval)=@_; |
|
my $parser = new AlgParserWithImplicitExpand; |
my $parser = new AlgParserWithImplicitExpand; |
|
if ($tth eq 'tth') {&init_tth();} |
$string=&prepare_algebra($string); |
$string=&prepare_algebra($string); |
my $ret = $parser->parse($string); |
my $ret = $parser->parse($string); |
my $result='['.&mt('Algebra unconverted due to previous errors').']'; |
my $result='['.&mt('Algebra unconverted due to previous errors').']'; |
Line 512 Header
|
Line 515 Header
|
|
|
=item init_math_support() |
=item init_math_support() |
|
|
|
=item mimetex_valign() |
|
|
|
Makes a HEAD call to /cgi-bin/mimetex.cgi via IO:: to retrieve the |
|
vertical alignment, before the subsequent call to mimetex_converted() |
|
which generates the <img> tag and the corresponding image. |
|
|
|
Input: 1. $esc_texstring (escaped TeX to be rendered by mimetex). |
|
Output: 1. $valign - number of pixels: positive or negative integer |
|
which will be included in <img> tag for mimetex image to |
|
support vertical alignment of image within a line of text. |
|
|
|
If a server is running SSL, and Apache rewrite rules are in place |
|
to rewrite requests for http to https, modification will most likely |
|
be needed for pass through for HEAD requests for /cgi-bin/mimetex.cgi. |
|
|
|
Example rewrite rules which rewrite all http traffic to https, |
|
except HEAD requests for /cgi-bin/mimetex.cgi are: |
|
|
|
<IfModule mod_rewrite.c> |
|
RewriteEngine On |
|
RewriteLogLevel 0 |
|
|
|
RewriteCond %{HTTPS} off |
|
RewriteCond %{HTTP:Host} (.*) |
|
RewriteCond %{REQUEST_METHOD} !HEAD |
|
RewriteRule ^/(.*) https://%1/$1 [R=301,L] |
|
|
|
RewriteCond %{HTTPS} off |
|
RewriteCond %{HTTP:Host} (.*) |
|
RewriteCond %{REQUEST_METHOD} HEAD |
|
RewriteCond %{REQUEST_URI} !^/cgi-bin/mimetex.cgi |
|
RewriteRule ^/(.*) https://%1/$1 [R=301,L] |
|
</IfModule> |
|
|
=item mimetex_converted() |
=item mimetex_converted() |
|
|