po: Allow enabling via web setup.

[git.ikiwiki.info.git] / IkiWiki / Plugin / teximg.pm

diff --git a/IkiWiki/Plugin/teximg.pm b/IkiWiki/Plugin/teximg.pm
index 661d97b1f4fc04b86421f41baa36cd05ce021a8b..195792acaa593bd627626061c4d5cfac6f31aa72 100644 (file)
--- a/IkiWiki/Plugin/teximg.pm
+++ b/IkiWiki/Plugin/teximg.pm
@@ -8,10 +8,12 @@ use strict;
 use Digest::MD5 qw(md5_hex);
 use File::Temp qw(tempdir);
 use HTML::Entities;
-use IkiWiki 2.00;
+use Encode;
+use IkiWiki 3.00;
 
 my $default_prefix = <<EOPREFIX;
 \\documentclass{article}
+\\usepackage[utf8]{inputenc}
 \\usepackage{amsmath}
 \\usepackage{amsfonts}
 \\usepackage{amssymb}
@@ -21,16 +23,17 @@ EOPREFIX
 
 my $default_postfix = '\\end{document}';
 
-sub import { #{{{
+sub import {
        hook(type => "getsetup", id => "teximg", call => \&getsetup);
        hook(type => "preprocess", id => "teximg", call => \&preprocess);
-} #}}}
+}
 
-sub getsetup () { #{{{
+sub getsetup () {
        return
                plugin => {
                        safe => 1,
                        rebuild => undef,
+                       section => "widget",
                },
                teximg_dvipng => {
                        type => "boolean",
@@ -52,9 +55,9 @@ sub getsetup () { #{{{
                        safe => 0, # Not sure how secure LaTeX is...
                        rebuild => 1,
                },
-} #}}}
+}
 
-sub preprocess (@) { #{{{
+sub preprocess (@) {
        my %params = @_;
        
        my $height = $params{height};
@@ -69,16 +72,10 @@ sub preprocess (@) { #{{{
        if (! defined $code && ! length $code) {
                error gettext("missing tex code");
        }
+       return create($code, check_height($height), \%params);
+}
 
-       if (check($code)) {
-               return create($code, check_height($height), \%params);
-       }
-       else {
-               error gettext("code includes disallowed latex commands")
-       }
-} #}}}
-
-sub check_height ($) { #{{{
+sub check_height ($) {
        # Since latex doesn't support unlimited scaling this function
        # returns the closest supported size.
        my $height =shift;
@@ -95,9 +92,9 @@ sub check_height ($) { #{{{
                }
        }
        return $ret;
-} #}}}
+}
 
-sub create ($$$) { #{{{
+sub create ($$$) {
        # This function calls the image generating function and returns
        # the <img .. /> for the generated image.
        my $code = shift;
@@ -108,7 +105,7 @@ sub create ($$$) { #{{{
                $height = 12;
        }
 
-       my $digest = md5_hex($code, $height);
+       my $digest = md5_hex(Encode::encode_utf8($code), $height);
 
        my $imglink= $params->{page} . "/$digest.png";
        my $imglog =  $params->{page} .  "/$digest.log";
@@ -127,9 +124,9 @@ sub create ($$$) { #{{{
        else {
                error qq{<a href="$logurl">}.gettext("failed to generate image from code")."</a>";
        }
-} #}}}
+}
 
-sub gen_image ($$$$) { #{{{
+sub gen_image ($$$$) {
        # Actually creates the image.
        my $code = shift;
        my $height = shift;
@@ -155,7 +152,7 @@ sub gen_image ($$$$) { #{{{
        my $tmp = eval { create_tmp_dir($digest) };
        if (! $@ &&
            writefile("$digest.tex", $tmp, $tex) &&
-           system("cd $tmp; latex --interaction=nonstopmode $tmp/$digest.tex > /dev/null") == 0 &&
+           system("cd $tmp; shell_escape=f openout_any=p openin_any=p latex --interaction=nonstopmode $digest.tex < /dev/null > /dev/null") == 0 &&
            # ensure destination directory exists
            writefile("$imagedir/$digest.png", $config{destdir}, "") &&
            (($config{teximg_dvipng} &&
@@ -180,45 +177,15 @@ sub gen_image ($$$$) { #{{{
 
                return 0;
        }
-} #}}}
+}
 
-sub create_tmp_dir ($) { #{{{
+sub create_tmp_dir ($) {
        # Create a temp directory, it will be removed when ikiwiki exits.
        my $base = shift;
 
        my $template = $base.".XXXXXXXXXX";
        my $tmpdir = tempdir($template, TMPDIR => 1, CLEANUP => 1);
        return $tmpdir;
-} #}}}
-
-sub check ($) { #{{{
-       # Check if the code is ok
-       my $code = shift;
-
-       my @badthings = (
-               qr/\$\$/,
-               qr/\\include/,
-               qr/\\includegraphic/,
-               qr/\\usepackage/,
-               qr/\\newcommand/, 
-               qr/\\renewcommand/,
-               qr/\\def/,
-               qr/\\input/,
-               qr/\\open/,
-               qr/\\loop/,
-               qr/\\errorstopmode/,
-               qr/\\scrollmode/,
-               qr/\\batchmode/,
-               qr/\\read/,
-               qr/\\write/,
-       );
-       
-       foreach my $thing (@badthings) {
-               if ($code =~ m/$thing/ ) {
-                       return 0;
-               }
-       }
-       return 1;
-} #}}}
+}
 
 1