# various variables
my ($HELM_LIB_PATH);
+my $cgi_dir = "@HELM_CGI_DIR@";
my (%map);
# First of all, let's load HELM configuration
($myownurl) = gethostbyname($myownurl);
$myownurl = "http://".$myownurl.":".$myownport;
-tie(%map, 'DB_File', $uris_dbm.".db", O_RDONLY, 0664);
+tie(%map, 'DB_File', $uris_dbm.".db", O_RDWR, 0664);
print "Please contact me at: <URL:", $myownurl."/", ">\n";
print "helm_dir: $helm_dir\n";
print "style_dir: $style_dir\n";
print "\nUnescaped query: ".$http_query."\n";
- if ($http_method eq 'GET' and $http_path eq "/getciconly") {
+ if ($http_method eq 'GET' and $http_path eq "/getxml") {
# finds the uri, url and filename
my $cicuri = $inputuri;
my $answerformat = $cgi->param('format');
+ my $patch_dtd = $cgi->param('patch_dtd');
$answerformat = "" if (not defined($answerformat));
-
+ $patch_dtd = "" if (not defined($patch_dtd));
if (($answerformat ne "gz") and ($answerformat ne "normal")
and ($answerformat ne "")) {
die "Wrong output format: $answerformat, must be 'normal' ".
"or 'gz'\n";
}
+ if (($patch_dtd ne "yes") and ($patch_dtd ne "no")
+ and ($patch_dtd ne "")) {
+ die "Wrong param, patch_dtd must be 'yes' or 'no'\n";
+ }
my $cicfilename = $cicuri;
$cicfilename =~ s/cic:(.*)/$1/;
$cicfilename =~ s/theory:(.*)/$1/;
my $cicurl = $map{$cicuri};
+ if (not defined($cicurl)) {
+ die "uri \"$cicuri\" can't be resolved\n";
+ }
my $extension;
if ($cicurl =~ /\.xml$/) { # non gzipped file
$extension = ".xml";
print_request("cic",$cicuri,$cicurl,$cicfilename);
# Retrieves the file
- my $ciccontent = download(0,"cic",$cicurl,$cicfilename,$answerformat);
+ my $ciccontent = download($patch_dtd,"cic",$cicurl,$cicfilename,$answerformat);
# Answering the client
- answer($c,$ciccontent);
+ if ($answerformat eq "normal") {
+ answer($c,$ciccontent,"text/xml","");
+ } else {
+ answer($c,$ciccontent,"text/xml","x-gzip");
+ }
}
+ } elsif ($http_method eq 'GET' and $http_path eq "/register") {
+ my $inputurl = $cgi->param('url');
+ print "Register requested...\n";
+ $map{$inputuri}=$inputurl;
+
+ # Now let's clean the cache
+ my $cicfilename = $inputuri;
+ $cicfilename =~ s/cic:(.*)/$1/;
+ $cicfilename =~ s/theory:(.*)/$1/;
+
+ print "Unlinking ".$helm_dir.$cicfilename.".xml[.gz]\n";
+ unlink ($helm_dir.$cicfilename.".xml");
+ unlink ($helm_dir.$cicfilename.".xml.gz");
+
+ kill(USR1,getppid()); # signal changes to parent
+ untie %map;
+ print "done\n";
+ html_nice_answer($c,"Register done");
+ } elsif ($http_method eq 'GET' and $http_path eq "/resolve") {
+ my $outputurl = $map{$inputuri};
+ $outputurl = "" if (not defined($outputurl));
+ $cont = "<?xml version=\"1.0\" ?>\n\n";
+ if ($outputurl eq "") {
+ $cont .= "<unresolved />\n";
+ } else {
+ $cont .= "<url value=\"$outputurl\" />\n";
+ }
+ answer($c,$cont,"text/xml","");
} elsif ($http_method eq 'GET' and $http_path eq "/getdtd") {
my $filename = $inputuri;
$filename = $dtd_dir."/".$filename;
$cont .= $_;
}
close(FD);
- answer($c,$cont);
+ answer($c,$cont,"text/xml","");
} else {
die "Could not find DTD!";
}
$cont .= $_;
}
close(FD);
- answer($c,$cont);
+ answer($c,$cont,"text/plain","");
} else {
die "Could not find Style Configuration File!";
}
$cont .= $_;
}
close(FD);
- answer($c,$cont);
+ answer($c,$cont,"text/xml","");
} else {
die "Could not find XSLT!";
}
- } elsif ($http_method eq 'GET' and $http_path eq "/conf") {
- my $quoted_html_link = $html_link;
- $quoted_html_link =~ s/&/&/g;
- $quoted_html_link =~ s/</</g;
- $quoted_html_link =~ s/>/>/g;
- $quoted_html_link =~ s/'/'/g;
- $quoted_html_link =~ s/"/"/g;
- print "\nConfiguration requested, returned #$quoted_html_link#\n";
- $cont = "<?xml version=\"1.0\"?><html_link>$quoted_html_link</html_link>";
- answer($c,$cont);
} elsif ($http_method eq 'GET' and $http_path eq "/update") {
# rebuild urls_of_uris.db
print "Update requested...\n";
mk_urls_of_uris();
kill(USR1,getppid()); # signal changes to parent
print " done\n";
- answer($c,"<html><body><h1>Update done</h1></body></html>");
+ html_nice_answer($c,"Update done");
} elsif ($http_method eq 'GET' and $http_path eq "/ls") {
# send back keys that begin with a given uri
my ($uritype,$uripattern,$uriprefix);
if ($uritype ne "invalid") { # uri is valid
if (($outype ne 'txt') and ($outype ne 'xml')) { # invalid out type
print "Invalid output type specified: $outype\n";
- answer($c,"<html><body><h1>Invalid output type, may be ".
- "\"txt\" or \"xml\"</h1></body></html>");
+ html_nice_answer($c,"Invalid output type, must be ".
+ "'txt' or 'xml'");
} else { # valid output
print "BASEURI $baseuri, FORMAT $outype\n";
$cont = finduris($uritype,$uripattern,$outype);
- answer($c,$cont);
+ if ($outype eq 'txt') {
+ answer($c,$cont,"text/plain","");
+ } elsif ($outype eq 'xml') {
+ answer($c,$cont,"text/xml","");
+ } else {
+ die "Internal error, exiting!";
+ }
}
} else { # invalid uri
print "Invalid uri: $baseuri, may begin with 'cic:', ".
"'theory:' or '*:'\n";
- answer($c,"<html><body><h1>Invalid uri , may begin with ".
- "\"cic:\", \"theory:\" or \"*:\"</h1></body></html>");
+ html_nice_answer($c,"Invalid uri , must begin with ".
+ "'cic:' or 'theory:'");
}
} elsif ($http_method eq 'GET' and $http_path eq "/help") {
- print "Help requested!";
- answer($c,"<html><body><h1>HTTP Getter Version ".
- $VERSION."</h1></body></html>");
+ print "Help requested!\n";
+ html_nice_answer($c,"HTTP Getter Version: $VERSION");
+ } elsif ($http_method eq 'GET' and $http_path =~ /\.cgi$/) {
+ print "CGI requested!\n";
+ if ($http_path !~ /^\/[^\/]*\.cgi$/) {
+ html_nice_answer($c,"Invalid CGI name: $http_path, ".
+ "you can't request CGI that contain a slash in the name\n");
+ } elsif (stat "$cgi_dir"."$http_path") {
+ if (not -x "$cgi_dir/$http_path") {
+ html_nice_answer($c,"CGI $http_path found but not ".
+ "executable\n");
+ } else { # exec CGI and anser back its output
+ my %old_ENV = %ENV;
+ %ENV = ();
+ $ENV{'QUERY_STRING'} = $http_query;
+ my $cgi_output = `$cgi_dir/$http_path`;
+ answer($c,$cgi_output,"","");
+ %ENV = %old_ENV;
+ }
+ } else {
+ html_nice_answer($c,"CGI '$http_path' not found ".
+ "in CGI dir '$cgi_dir'");
+ }
} else {
print "\n";
print "INVALID REQUEST!!!!!\n";
my ($uri,$localpart,$basepart,$dirname,$suffix,$flags,$key);
my (@itemz,@already_pushed_dir);
my (%objects,%dirs); # map uris to suffixes' flags
+ #my $debug=1; # for debug
print "FINDURIS, uritype: $uritype, uripattern: $uripattern, ".
- "format: $format\n\n";
+ "format: $format\n\n" if defined($debug);
if (($uritype eq "cic") or ($uritype eq "theory")) {
# get info only of one type: cic or theory
foreach (keys(%map)) { # select matching uris
$uri = $_;
- if ($uri =~ /^$uritype:$uripattern\//) {
- $localpart = $uri;
- $localpart =~ s/^$uritype:$uripattern\/(.*)/$1/;
+ if ($uri =~ /^$uritype:$uripattern(\/|$|\.)/) {
+ if ($uri =~ /^$uritype:$uripattern\//) { # directory match
+ $localpart = $uri;
+ $localpart =~ s/^$uritype:$uripattern\/(.*)/$1/;
+ } elsif ($uri =~ /^$uritype:$uripattern($|\.)/) { # file match
+ $localpart = $uri;
+ $localpart =~ s/^.*\/([^\/]*)/$1/;
+ } else {
+ die "Internal error, seems that requested match is none of ".
+ "directory match or file match";
+ }
+ print "LOCALPART: $localpart\n" if defined($debug);
if ($localpart =~ /^[^\/]*$/) { # no slash, an OBJECT
$basepart = $localpart;
- $basepart =~ s/^([^.]*\.[^.]*)(\.types)?(\.ann)?/$1/; # remove exts .types or
+ $basepart =~ s/^([^.]*\.[^.]*)(\.types)?(\.ann)?/$1/;
+ # remove exts .types or
# .types.ann
$flags = $objects{$basepart}; # get old flags
if ($localpart =~ /\.ann$/) {
}
} elsif ($format eq "xml") { # XML output
$content .= '<?xml version="1.0" encoding="ISO-8859-1"?>' . "\n";
- $content .= '<!DOCTYPE ls SYSTEM ';
- $content .= '"http://localhost:8081/getdtd?uri=ls.dtd">' . "\n\n";
+ $content .= "<!DOCTYPE ls SYSTEM ";
+ $content .= "\"$myownurl/getdtd?uri=ls.dtd\">" . "\n\n";
$content .= "<ls>\n";
foreach $key (sort(keys %dirs)) {
$content .= "\t<section>$key</section>\n";
$gz->gzclose();
}
-sub download
-{
- my ($remove_headers,$str,$url,$filename,$format) = @_;
+sub download {
+ my ($patch_dtd,$str,$url,$filename,$format) = @_;
my ($gz, $buffer);
#my $debug=1; # for DEBUG only
}
# $cont now contained uncompressed data
}
- if ($remove_headers) {
- $cont =~ s/<\?xml [^?]*\?>//sg;
- $cont =~ s/<!DOCTYPE [^>]*>//sg;
- } else {
+ if ($patch_dtd eq "yes") {
$cont =~ s/DOCTYPE (.*) SYSTEM\s+"http:\/\/www.cs.unibo.it\/helm\/dtd\//DOCTYPE $1 SYSTEM "$myownurl\/getdtd?uri=/g;
}
if ($format eq "gz") {
return $cont;
}
-sub answer
-{
- my ($c,$cont) = @_;
+sub answer {
+# answer the client setting content, Content-Type and Content-Enconding
+# of the answer
+ my ($c,$cont,$contype,$contenc) = @_;
my $res = new HTTP::Response;
$res->content($cont);
+ $res->push_header("Content-Type" => $contype)
+ unless ($contype eq "");
+ $res->push_header("Content-Encoding" => $contenc)
+ unless ($contenc eq "");
+ $res->push_header("Cache-Control" => "no-cache");
+ $res->push_header("Pragma" => "no-cache");
+ $res->push_header("Expires" => "0");
$c->send_response($res);
}
+sub html_nice_answer {
+# answer the client whith a nice html document
+ my ($c,$content) = @_;
+ $content = "<html><body><h1>$content</h1></body></html>";
+ answer($c,$content,"text/html","");
+}
+
sub helm_wget {
#retrieve a file from an url and write it to a temp dir
#used for retrieve resource index from servers
sub update {
untie %map;
- tie(%map, 'DB_File', $uris_dbm.".db", O_RDONLY, 0664);
+ tie(%map, 'DB_File', $uris_dbm.".db", O_RDWR, 0664);
}
sub mk_urls_of_uris {
}
untie(%urls_of_uris);
- tie(%map, 'DB_File', $uris_dbm.".db", O_RDONLY, 0664);
+ tie(%map, 'DB_File', $uris_dbm.".db", O_RDWR, 0664);
}
projects / helm.git / blobdiff