-#!/usr/bin/perl -w
-
package HTTPServer;
use strict;
+use warnings;
use HTTP::Daemon;
use HTTP::Status;
if (!$initialized) {
$synch_callback->();
$initialized = 1;
- }
-
+ }
my $con = $self->accept();
print STDERR "Accepted a new connection\n" if $log;
while (my $req = $con->get_request) {
- my $url_path = $req->url->path;
+ #my $url_path = $req->url->path;
+ my $url_path = $req->url->as_string;
if ($url_path =~ m{/$}) { # append 'index.html'
$url_path .= 'index.html';
}
if (exists($urls->{$url_path})) {
print STDERR "Serving requested URL: ", $url_path, "\n" if $log;
next unless ($req->method eq "HEAD" || $req->method eq "GET");
-
- # create response
- my $tmp = $urls->{$url_path};
- my $resp = HTTP::Response->new ($tmp->{code}, $tmp->{msg});
- print STDERR "HTTP::Response: \n", $resp->as_string if $log;
-
- #if (is_dynamic_url) { # dynamic resource
- #} else { # static resource
- # fill in headers
- while (my ($name, $value) = each %{$tmp->{headers}}) {
- # print STDERR "setting header: $name = $value\n";
- $resp->header($name => $value);
- }
- print STDERR "HTTP::Response with headers: \n", $resp->as_string if $log;
-
- if ($req->method eq "GET") {
- if (exists($tmp->{headers}{"Content-Length"})) {
- # Content-Length and length($tmp->{content}) don't match
- # manually prepare the HTTP response
- $con->send_basic_header($tmp->{code}, $resp->message, $resp->protocol);
- print $con $resp->headers_as_string($CRLF);
- print $con $CRLF;
- print $con $tmp->{content};
- next;
- }
- if ($req->header("Range")) {
- $req->header("Range") =~ m/bytes=(\d*)-(\d*)/;
- my $content_len = length($tmp->{content});
- my $start = $1 ? $1 : 0;
- my $end = $2 ? $2 : ($content_len - 1);
- my $len = $2 ? ($2 - $start) : ($content_len - $start);
- $resp->header("Accept-Ranges" => "bytes");
- $resp->header("Content-Length" => $len);
- $resp->header("Content-Range" => "bytes $start-$end/$content_len");
- $resp->header("Keep-Alive" => "timeout=15, max=100");
- $resp->header("Connection" => "Keep-Alive");
- $con->send_basic_header(206, "Partial Content", $resp->protocol);
- print $con $resp->headers_as_string($CRLF);
- print $con $CRLF;
- print $con substr($tmp->{content}, $start, $len);
- next;
- }
- # fill in content
- $resp->content($tmp->{content});
- print STDERR "HTTP::Response with content: \n", $resp->as_string if $log;
- }
- #}
-
- $con->send_response($resp);
- print STDERR "HTTP::Response sent: \n", $resp->as_string if $log;
+
+ my $url_rec = $urls->{$url_path};
+ $self->send_response($req, $url_rec, $con);
} else {
print STDERR "Requested wrong URL: ", $url_path, "\n" if $log;
$con->send_error($HTTP::Status::RC_FORBIDDEN);
last;
- }
+ }
}
print STDERR "Closing connection\n" if $log;
$con->close;
}
}
+sub send_response {
+ my ($self, $req, $url_rec, $con) = @_;
+
+ # create response
+ my ($code, $msg, $headers);
+ my $send_content = ($req->method eq "GET");
+ if (exists $url_rec->{'auth_method'}) {
+ ($send_content, $code, $msg, $headers) =
+ $self->handle_auth($req, $url_rec);
+ } elsif (!$self->verify_request_headers ($req, $url_rec)) {
+ ($send_content, $code, $msg, $headers) =
+ ('', 400, 'Mismatch on expected headers', {});
+ } else {
+ ($code, $msg) = @{$url_rec}{'code', 'msg'};
+ $headers = $url_rec->{headers};
+ }
+ my $resp = HTTP::Response->new ($code, $msg);
+ print STDERR "HTTP::Response: \n", $resp->as_string if $log;
+
+ while (my ($name, $value) = each %{$headers}) {
+ # print STDERR "setting header: $name = $value\n";
+ $resp->header($name => $value);
+ }
+ print STDERR "HTTP::Response with headers: \n", $resp->as_string if $log;
+
+ if ($send_content) {
+ my $content = $url_rec->{content};
+ if (exists($url_rec->{headers}{"Content-Length"})) {
+ # Content-Length and length($content) don't match
+ # manually prepare the HTTP response
+ $con->send_basic_header($url_rec->{code}, $resp->message, $resp->protocol);
+ print $con $resp->headers_as_string($CRLF);
+ print $con $CRLF;
+ print $con $content;
+ next;
+ }
+ if ($req->header("Range") && !$url_rec->{'force_code'}) {
+ $req->header("Range") =~ m/bytes=(\d*)-(\d*)/;
+ my $content_len = length($content);
+ my $start = $1 ? $1 : 0;
+ my $end = $2 ? $2 : ($content_len - 1);
+ my $len = $2 ? ($2 - $start) : ($content_len - $start);
+ if ($len > 0) {
+ $resp->header("Accept-Ranges" => "bytes");
+ $resp->header("Content-Length" => $len);
+ $resp->header("Content-Range"
+ => "bytes $start-$end/$content_len");
+ $resp->header("Keep-Alive" => "timeout=15, max=100");
+ $resp->header("Connection" => "Keep-Alive");
+ $con->send_basic_header(206,
+ "Partial Content", $resp->protocol);
+ print $con $resp->headers_as_string($CRLF);
+ print $con $CRLF;
+ print $con substr($content, $start, $len);
+ } else {
+ $con->send_basic_header(416, "Range Not Satisfiable",
+ $resp->protocol);
+ $resp->header("Keep-Alive" => "timeout=15, max=100");
+ $resp->header("Connection" => "Keep-Alive");
+ print $con $CRLF;
+ }
+ next;
+ }
+ # fill in content
+ $content = $self->_substitute_port($content);
+ $resp->content($content);
+ print STDERR "HTTP::Response with content: \n", $resp->as_string if $log;
+ }
+
+ $con->send_response($resp);
+ print STDERR "HTTP::Response sent: \n", $resp->as_string if $log;
+}
+
+# Generates appropriate response content based on the authentication
+# status of the URL.
+sub handle_auth {
+ my ($self, $req, $url_rec) = @_;
+ my ($send_content, $code, $msg, $headers);
+ # Catch failure to set code, msg:
+ $code = 500;
+ $msg = "Didn't set response code in handle_auth";
+ # Most cases, we don't want to send content.
+ $send_content = 0;
+ # Initialize headers
+ $headers = {};
+ my $authhdr = $req->header('Authorization');
+
+ # Have we sent the challenge yet?
+ unless ($url_rec->{auth_challenged} || $url_rec->{auth_no_challenge}) {
+ # Since we haven't challenged yet, we'd better not
+ # have received authentication (for our testing purposes).
+ if ($authhdr) {
+ $code = 400;
+ $msg = "You sent auth before I sent challenge";
+ } else {
+ # Send challenge
+ $code = 401;
+ $msg = "Authorization Required";
+ $headers->{'WWW-Authenticate'} = $url_rec->{'auth_method'}
+ . " realm=\"wget-test\"";
+ $url_rec->{auth_challenged} = 1;
+ }
+ } elsif (!defined($authhdr)) {
+ # We've sent the challenge; we should have received valid
+ # authentication with this one. A normal server would just
+ # resend the challenge; but since this is a test, wget just
+ # failed it.
+ $code = 400;
+ $msg = "You didn't send auth after I sent challenge";
+ if ($url_rec->{auth_no_challenge}) {
+ $msg = "--auth-no-challenge but no auth sent."
+ }
+ } else {
+ my ($sent_method) = ($authhdr =~ /^(\S+)/g);
+ unless ($sent_method eq $url_rec->{'auth_method'}) {
+ # Not the authorization type we were expecting.
+ $code = 400;
+ $msg = "Expected auth type $url_rec->{'auth_method'} but got "
+ . "$sent_method";
+ } elsif (($sent_method eq 'Digest'
+ && &verify_auth_digest($authhdr, $url_rec, \$msg))
+ ||
+ ($sent_method eq 'Basic'
+ && &verify_auth_basic($authhdr, $url_rec, \$msg))) {
+ # SUCCESSFUL AUTH: send expected message, headers, content.
+ ($code, $msg) = @{$url_rec}{'code', 'msg'};
+ $headers = $url_rec->{headers};
+ $send_content = 1;
+ } else {
+ $code = 400;
+ }
+ }
+
+ return ($send_content, $code, $msg, $headers);
+}
+
+sub verify_auth_digest {
+ return undef; # Not yet implemented.
+}
+
+sub verify_auth_basic {
+ require MIME::Base64;
+ my ($authhdr, $url_rec, $msgref) = @_;
+ my $expected = MIME::Base64::encode_base64($url_rec->{'user'} . ':'
+ . $url_rec->{'passwd'}, '');
+ my ($got) = $authhdr =~ /^Basic (.*)$/;
+ if ($got eq $expected) {
+ return 1;
+ } else {
+ $$msgref = "Wanted ${expected} got ${got}";
+ return undef;
+ }
+}
+
+sub verify_request_headers {
+ my ($self, $req, $url_rec) = @_;
+
+ return 1 unless exists $url_rec->{'request_headers'};
+ for my $hdrname (keys %{$url_rec->{'request_headers'}}) {
+ my $rhdr = $req->header ($hdrname);
+ my $ehdr = $url_rec->{'request_headers'}{$hdrname};
+ unless (defined $rhdr && $rhdr =~ $ehdr) {
+ print STDERR "\n*** Mismatch on $hdrname: $rhdr =~ $ehdr\n";
+ return undef;
+ }
+ }
+
+ return 1;
+}
+
+sub _substitute_port {
+ my $self = shift;
+ my $ret = shift;
+ $ret =~ s/{{port}}/$self->sockport/eg;
+ return $ret;
+}
+
1;
# vim: et ts=4 sw=4
projects / wget / blobdiff