Add HTML generation for man pages

4 files changed, 237 insertions, 2 deletions

diff --git a/doc/Makefile.am b/doc/Makefile.am
index 85f98bc..b91c7d3 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -1,9 +1,16 @@
 
 man_MANS = httpauthd.8 httpauthd.conf.5 mkha1.8
 
+# Simple way to make docs
+html:
+	perl man2html.pl httpauthd.8 > httpauthd.8.html
+	perl man2html.pl httpauthd.conf.5 > httpauthd.conf.5.html
+	perl man2html.pl mkha1.8 > mkha1.8.html
+
 EXTRA_DIST = protocol.txt \
     httpauthd.conf.sample \
     ldap-example.conf \
     mysql-example.conf \
     ntlm-example.conf \
+	man2html.pl \
     ${man_MANS}
diff --git a/doc/httpauthd.8 b/doc/httpauthd.8
index 80c70bc..0bde031 100644
--- a/doc/httpauthd.8
+++ b/doc/httpauthd.8
@@ -55,7 +55,6 @@ in an extensible manner so more can be added in the future. Currently it
 can perform Basic and Digest authentation against files, LDAP, MYSQL and 
 PostgreSQL. It can also perform Basic and NTLM authentication against a 
 Windows server.
-.El
 .Sh OPTIONS
 The options are as follows:
 .Bl -tag -width Fl
diff --git a/doc/httpauthd.conf.5 b/doc/httpauthd.conf.5
index 7714095..9fbc70b 100644
--- a/doc/httpauthd.conf.5
+++ b/doc/httpauthd.conf.5
@@ -122,7 +122,6 @@ will be able to have open at once.
 .Em 32
 ]
 .El
-
 .Sh METHOD OPTIONS
 These options change settings in how the various methods handle authentication.
 When they appear after a method section, they only affect that method. Most of 
diff --git a/doc/man2html.pl b/doc/man2html.pl
new file mode 100755
index 0000000..21e3ab5
--- /dev/null
+++ b/doc/man2html.pl
@@ -0,0 +1,230 @@
+#!/usr/bin/perl
+
+# TODO: We need to make this more resilient
+# currently expects args without enforcing
+
+$FIL = $NAM = $SEC = @ARGV[0];
+
+$NAM =~ s/^([^.]+)\..+$/$1/;
+$SEC =~ s/^.+\.([^.]+)$/$1/;
+
+$command =     "groff";
+@args =        split(" ", "-Tascii -mdoc $FIL");
+
+$enable_include_links = 0;
+
+man($NAM, $SEC);
+
+sub man {
+    local($name, $section) = @_;
+    local($_, $title, $head, *MAN);
+    local($html_name, $html_section, $prefix);
+    local(@manargs);
+    local($query) = $name;
+
+    # $section =~ s/^([0-9ln]).*$/$1/;
+    $section =~ tr/A-Z/a-z/;
+
+    $prefix = "Man ";
+    if ($alttitle) {
+        $prefix = "";
+        $title = &encode_title($alttitle);
+        $head = &encode_data($alttitle);
+    } elsif ($section) {
+        $title = &encode_title("${name}($section)");
+        $head = &encode_data("${name}($section)");
+    } else {
+        $title = &encode_title("${name}");
+        $head = &encode_data("${name}");
+    }
+
+    print &html_header("$title");
+    print "<H1>Man Page: ${title}</H1>";
+    print "<PRE>\n";
+
+    $html_name = &encode_data($name);
+    $html_section = &encode_data($section);
+
+    #print Dumper($sectionpath);
+    #print "yy $section yy $manpath\n";
+    if ($name =~ /^\s*$/) {
+        print "Empty input, no man page given.\n";
+        return;
+    }
+
+    if (index($name, '*') != -1) {
+        print "Invalid character input '*': $name\n";
+        return;
+    }
+
+    if ($section !~ /^[0-9ln]\w*$/ && $section ne '') {
+        print "Sorry, section `$section' is not valid\n";
+        return;
+    }
+
+    if (!$section) {
+        if ($sectionpath->{$manpath}) {
+            $section = "-S " . $sectionpath->{$manpath}{'path'};
+        } else {
+            $section =  '';
+        }
+    } else {
+        if ($sectionpath->{$manpath}{$section}) {
+            $section = "-S " . $sectionpath->{$manpath}{$section};
+        } else {
+            $section = "-S $section";
+        }
+    }
+
+    # print "X $command{'man'} @manargs -- x $name x\n";
+    &proc(*MAN, $command, @args) ||
+        &mydie ("$0: open of $command{'man'} command failed: $!\n");
+    if (eof(MAN)) {
+        # print "X $command{'man'} @manargs -- x $name x\n";
+        print "Sorry, no data found for `$html_name" .
+                ($html_section ? "($html_section)": '') . "'.\n";
+        return;
+    }
+
+    local($space) = 1;
+    local(@sect);
+    local($i, $j);
+    while(<MAN>) {
+        # remove tailing white space
+        if (/^\s+$/) {
+            next if $space;
+            $space = 1;
+        } else {
+            $space = 0;
+        }
+
+        $_ = &encode_data($_);
+        if($enable_include_links &&
+           m,(<B>)?\#include(</B>)?\s+(<B>)?\&lt\;(.*\.h)\&gt\;(</B>)?,) {
+            $match = $4; ($regexp = $match) =~ s/\./\\\./;
+            s,$regexp,\<A HREF=\"$BASE/usr/include/$match\"\>$match\</A\>,;
+        }
+        /^\s/ &&                         # skip headers
+            s,((<[IB]>)?[\w\_\.\-]+\s*(</[IB]>)?\s*\(([1-9ln][a-zA-Z]*)\)),&mlnk($1),oige;
+
+        # detect E-Mail Addreses in manpages
+        if (/\@/) {
+            s/([a-z0-9_\-\.]+\@[a-z0-9\-\.]+\.[a-z]+)/<A HREF="mailto:$1">$1<\/A>/gi;
+        }
+
+        # detect URLs in manpages
+        if (m%tp://%) {
+            s,((ftp|http)://[^\s<>\)]+),<A HREF="$1">$1</A>,gi;
+        }
+
+        if (/^<B>\S+/ && m%^<B>([^<]+)%) {
+            $i = $1; $j = &encode_url($i);
+            s%^<B>([^<]+)</B>%<B>$i</B>%;
+            push(@sect, $1);
+        }
+        print;
+    }
+    close(MAN);
+
+    print "<H6>Copyright, N. Nielsen&nbsp;&nbsp;&nbsp;[ <a href='./'>back</a> | <a href='../../'>home</a> ]</h6>";
+    print "</BODY>\n";
+    print "</HTML>\n";
+
+    # Sleep 0.35 seconds to avoid DoS attacs
+    select undef, undef, undef, 0.35;
+}
+
+# encode unknown data for use in <TITLE>...</TITILE>
+sub encode_title {
+    # like encode_url but less strict (I couldn't find docs on this)
+    local($_) = @_;
+    s/([\000-\031\%\&\<\>\177-\377])/sprintf('%%%02x',ord($1))/eg;
+    $_;
+}
+
+# encode unknown data for use in a URL <A HREF="...">
+sub encode_url {
+    local($_) = @_;
+    # rfc1738 says that ";"|"/"|"?"|":"|"@"|"&"|"=" may be reserved.
+    # And % is the escape character so we escape it along with
+    # single-quote('), double-quote("), grave accent(`), less than(<),
+    # greater than(>), and non-US-ASCII characters (binary data),
+    # and white space.  Whew.
+    s/([\000-\032\;\/\?\:\@\&\=\%\'\"\`\<\>\177-\377 ])/sprintf('%%%02x',ord($1))/eg;
+    s/%20/+/g;
+    $_;
+}
+# encode unknown data for use inside markup attributes <MARKUP ATTR="...">
+sub encode_attribute {
+    # rfc1738 says to use entity references here
+    local($_) = @_;
+    s/([\000-\031\"\'\`\%\&\<\>\177-\377])/sprintf('\&#%03d;',ord($1))/eg;
+    $_;
+}
+# encode unknown text data for using as HTML,
+# treats ^H as overstrike ala nroff.
+sub encode_data {
+    local($_) = @_;
+    local($str);
+
+    # Escape &, < and >
+    s,\010[><&],,g;
+    s/\&/\&amp\;/g;
+    s/\</\&lt\;/g;
+    s/\>/\&gt\;/g;
+
+    s,((_\010.)+),($str = $1) =~ s/.\010//g; "<I>$str</I>";,ge;
+    s,(.\010)+,$1,g;
+
+    if (!s,((.\010.)+\s+(.\010.)+),($str = $1) =~ s/.\010//g; "<B>$str</B>";,ge) {
+        s,((.\010.)+),($str = $1) =~ s/.\010//g; "<B>$str</B>";,ge;
+    }
+
+    s,.\010,,g;
+
+    $_;
+}
+
+sub html_header {
+    return qq{<HTML>
+<HEAD>
+<TITLE>$_[0]</TITLE>
+<link rev="made" href="mailto:wosch\@FreeBSD.ORG">
+<META name="robots" content="nofollow">
+<meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type">
+<link rel="stylesheet" type="text/css" href="/nielsen/style.css">
+</HEAD>
+<BODY BGCOLOR="#FFFFFF" TEXT="#000000">\n\n};
+}
+
+sub mlnk {
+    local($matched) = @_;
+    return qq{<U>$matched</U>};
+}
+
+sub proc {
+    local(*FH, $prog, @args) = @_;
+    local($pid) = open(FH, "-|");
+    return undef unless defined($pid);
+    if ($pid == 0) {
+    exec $prog, @args;
+    &mydie("exec $prog failed\n");
+    }
+    1;
+}
+
+# CGI script must die with error status 0
+sub mydie {
+	local($message) = @_;
+	print &html_header("Error");
+	print $message;
+
+print qq{
+<p>
+<A HREF="$BASE">Index Page and Help</A>
+</BODY>
+</HTML>
+};
+
+	exit(0);
+}