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# Functions for searching the webmin docs and UI
=head2 search_webmin(phrase, [callback-function], [&modules])
Searches all Webmin help pages, UI text, module names and config.info files
for entries matching the given phrase or word. Returns them sorted by relevance
order, each as a hash ref with the following keys :
=item mod - A module hash reference for the module the search result was in
=item rank - A result ranking, higher being better
=item type - One of mod (for module name), dir (for module directory), config (configuration setting), help (help page) or text (UI text)
=item text - The text that matched
=items cgis - An array ref of pages on which the text appears, each formatted like module/script.cgi
=cut
sub search_webmin
{
my ($re, $cbfunc, $onlymods) = @_;
# Work out this Webmin's URL base
my $urlhost = $ENV{'HTTP_HOST'};
if ($urlhost !~ /:/) {
$urlhost .= ":".$ENV{'SERVER_PORT'};
}
my $urlbase = ($ENV{'HTTPS'} eq 'ON' ? 'https://' : 'http://').$urlhost;
# Search module names and add to results list
my @rv = ( );
my $pn = &get_product_name();
my @mods;
if ($onlymods) {
# Modules specified by caller
@mods = grep { &foreign_available($_->{'dir'}) } @$onlymods;
}
else {
# All reasonable modules
@mods = &get_available_module_infos();
}
@mods = grep { !$_->{'clone'} }
grep { !$_->{'noui'} && !$_->{$pn.'_noui'} } @mods;
@mods = sort { $b->{'longdesc'} cmp $a->{'longdesc'} } @mods;
foreach my $m (@mods) {
if ($m->{'desc'} =~ /\Q$re\E/i) {
# Module description match
push(@rv, { 'mod' => $m,
'rank' => 10,
'type' => 'mod',
'link' => $m->{'dir'}.'/',
'text' => $m->{'desc'} });
}
elsif ($m->{'longdesc'} =~ /\Q$re\E/i) {
# Module long description match
push(@rv, { 'mod' => $m,
'rank' => 9.5,
'type' => 'mod',
'link' => $m->{'dir'}.'/',
'text' => $m->{'longdesc'} });
}
elsif ($m->{'dir'} =~ /\Q$re\E/i) {
# Module directory match
push(@rv, { 'mod' => $m,
'rank' => 9,
'type' => 'dir',
'link' => $m->{'dir'}.'/',
'text' => $urlbase."/".$m->{'dir'}."/" });
}
&$cbfunc() if ($cbfunc);
}
# Search module configs and their help pages
foreach my $m (@mods) {
my %access = &get_module_acl(undef, $m);
next if ($access{'noconfig'});
my $file = $prod eq 'webmin' ? "$m->{'dir'}/config.info"
: "$m->{'dir'}/uconfig.info";
my %info = ( );
my @info_order = ( );
&read_file($file, \%info, \@info_order);
foreach my $o (@lang_order_list) {
&read_file("$file.$o", \%info);
}
my $section = undef;
foreach my $c (@info_order) {
my @p = split(/,/, $info{$c});
if ($p[1] == 11) {
$section = $c;
}
if ($p[0] =~ /\Q$re\E/i) {
# Config description matches
push(@rv, { 'mod' => $m,
'rank' => 8,
'type' => 'config',
'link' => "/config.cgi?module=$m->{'dir'}&".
"section=".&urlize($section)."#$c",
'text' => $p[0],
});
}
my $hfl = &help_file($mod->{'dir'}, "config_".$c);
my ($title, $help) = &help_file_match($hfl);
if ($help) {
# Config help matches
push(@rv, { 'mod' => $m,
'rank' => 6,
'type' => 'help',
'link' => "/help.cgi/$m->{'dir'}/config_".$c,
'desc' => &text('wsearch_helpfor', $p[0]),
'text' => $help,
'cgis' => [ "/config.cgi?".
"module=$m->{'dir'}&section=".
&urlize($section)."#$c" ],
});
}
}
&$cbfunc() if ($cbfunc);
}
# Search other help pages
my %lang_order_list = map { $_, 1 } @lang_order_list;
foreach my $m (@mods) {
my $helpdir = &module_root_directory($m->{'dir'})."/help";
my %donepage = ( );
opendir(DIR, $helpdir);
foreach my $f (sort { length($b) <=> length($a) } readdir(DIR)) {
next if ($f =~ /^config_/); # For config help, already done
# Work out if we should grep this help page - don't do the same
# page twice for different languages
my $grep = 0;
my ($page, $lang);
if ($f =~ /^(\S+)\.([^\.]+)\.html$/) {
($page, $lang) = ($1, $2);
if ($lang_order_list{$lang} && !$donepage{$page}++) {
$grep = 1;
}
}
elsif ($f =~ /^(\S+)\.html$/) {
$page = $1;
if (!$donepage{$page}++) {
$grep = 1;
}
}
# If yes, search it
if ($grep) {
my ($title, $help) = &help_file_match("$helpdir/$f");
if ($title) {
my @cgis = &find_cgi_text(
[ "hlink\\(.*'$page'",
"hlink\\(.*\"$page\"",
"header\\([^,]+,[^,]+,[^,]+,\\s*\"$page\"",
"header\\([^,]+,[^,]+,[^,]+,\\s*'$page'",
], $m, 1);
push(@rv, { 'mod' => $m,
'rank' => 6,
'type' => 'help',
'link' => "/help.cgi/$m->{'dir'}/$page",
'desc' => $title,
'text' => $help,
'cgis' => \@cgis });
}
}
&$cbfunc() if ($cbfunc);
}
closedir(DIR);
}
# Then do text strings
my %gtext = &load_language("");
MODULE: foreach my $m (@mods) {
my %mtext = &load_language($m->{'dir'});
foreach my $k (keys %mtext) {
next if ($gtext{$k}); # Skip repeated global strings
$mtext{$k} =~ s/\$[0-9]//g;
if ($mtext{$k} =~ /\Q$re\E/i) {
# Find CGIs that use this text
my @cgis = &find_cgi_text(
[ "\$text{'$k'}",
"\$text{\"$k\"}",
"\$text{$k}",
"&text('$k'",
"&text(\"$k\"" ], $m);
if (@cgis) {
push(@rv, { 'mod' => $m,
'rank' => 4,
'type' => 'text',
'text' => $mtext{$k},
'cgis' => \@cgis });
}
}
}
&$cbfunc() if ($cbfunc);
}
# Sort results by relevancy
# XXX can do better?
@rv = sort { $b->{'rank'} <=> $a->{'rank'} ||
lc($a->{'mod'}->{'desc'}) cmp lc($b->{'mod'}->{'desc'}) } @rv;
return @rv;
}
# highlight_text(text, [length])
# Returns text with the search term bolded, and truncated to 50 characters
sub highlight_text
{
local ($str, $len) = @_;
$len ||= 50;
local $hlen = $len / 2;
$str =~ s/<[^>]*>//g;
if ($str =~ /(.*)(\Q$re\E)(.*)/i) {
local ($before, $match, $after) = ($1, $2, $3);
if (length($before) > $hlen) {
$before = "...".substr($before, length($before)-$hlen);
}
if (length($after) > $hlen) {
$after = substr($after, 0, $hlen)."...";
}
$str = $before."<b>".&html_escape($match)."</b>".$after;
}
return $str;
}
# find_cgi_text(&regexps, module, re-mode)
# Returns the relative URLs of CGIs that matches some regexps, in the given
# module. Does not include those that don't call some header function, as
# they cannot be linked to normally
sub find_cgi_text
{
local ($res, $m, $remode) = @_;
local $mdir = &module_root_directory($m);
local @rv;
foreach my $f (glob("$mdir/*.cgi")) {
local $found = 0;
local $header = 0;
open(CGI, $f);
LINE: while(my $line = <CGI>) {
if ($line =~ /(header|ui_print_header|ui_print_unbuffered_header)\(/) {
$header++;
}
foreach my $r (@$res) {
if (!$remode && index($line, $r) >= 0 ||
$remode && $line =~ /$r/) {
$found++;
last LINE;
}
}
}
close(CGI);
if ($found && $header) {
local $url = $f;
$url =~ s/^\Q$root_directory\E\///;
push(@rv, $url);
}
}
return @rv;
}
# help_file_match(file)
# Returns the title if some help file matches the current search
sub help_file_match
{
local ($f) = @_;
local $data = &read_file_contents($f);
local $title;
if ($data =~ /<header>([^<]*)<\/header>/) {
$title = $1;
}
$data =~ s/\s+/ /g;
$data =~ s/<p>/\n\n/gi;
$data =~ s/<br>/\n/gi;
$data =~ s/<[^>]+>//g;
if ($data =~ /\Q$re\E/i) {
return ($title, $data);
}
return ( );
}
# cgi_page_title(module, cgi)
# Given a CGI, return the text for its page title, if possible
sub cgi_page_title
{
local ($m, $cgi) = @_;
local $data = &read_file_contents(&module_root_directory($m)."/".$cgi);
local $rv;
if ($data =~ /(ui_print_header|ui_print_unbuffered_header)\([^,]+,[^,]*(\$text{'([^']+)'|\$text{"([^"]+)"|\&text\('([^']+)'|\&text\("([^"]+)")/) {
# New header function, with arg before title
local $msg = $3 || $4 || $5 || $6;
local %mtext = &load_language($m);
$rv = $mtext{$msg};
}
elsif ($data =~ /(^|\s|mail_page_)header\(\s*(\$text{'([^']+)'|\$text{"([^"]+)"|\&text\('([^']+)'|\&text\("([^"]+)")/) {
# Old header function
local $msg = $3 || $4 || $5 || $6;
local %mtext = &load_language($m);
$rv = $mtext{$msg};
}
if ($cgi eq "index.cgi" && !$rv) {
# If no title was found for an index.cgi, use module title
local %minfo = &get_module_info($m);
$rv = $minfo{'desc'};
}
return $rv;
}
# cgi_page_args(module, cgi)
# Given a module and CGI name, returns a string of URL parameters that can be
# used for linking to it. Returns "none" if parameters are needed, but cannot
# be determined.
sub cgi_page_args
{
local ($m, $cgi) = @_;
local $mroot = &module_root_directory($m);
if (-r "$mroot/cgi_args.pl") {
# Module can tell us what args to use
&foreign_require($m, "cgi_args.pl");
$args = &foreign_call($m, "cgi_args", $cgi);
if (defined($args)) {
return $args;
}
}
if ($cgi eq "index.cgi") {
# Index page is always safe to link to
return undef;
}
# Otherwise check if it appears to parse any args
local $data = &read_file_contents($mroot."/".$cgi);
if ($data =~ /(ReadParse|ReadParseMime)\(/) {
return "none";
}
return undef;
}
1;
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