]> git.proxmox.com Git - pve-http-server.git/blobdiff - src/PVE/APIServer/AnyEvent.pm
explicitly disallow tmpfilename parameter in query URL
[pve-http-server.git] / src / PVE / APIServer / AnyEvent.pm
index cd778064ff35c96aed714259734baa58224b6de1..5cd8afbd1e6724bcc9c590d56f4cafc22a1f3efc 100644 (file)
@@ -9,43 +9,47 @@ package PVE::APIServer::AnyEvent;
 
 use strict;
 use warnings;
-use Time::HiRes qw(usleep ualarm gettimeofday tv_interval);
-use Socket qw(IPPROTO_TCP TCP_NODELAY SOMAXCONN);
-use POSIX qw(strftime EINTR EAGAIN);
-use Fcntl;
-use IO::File;
-use File::stat qw();
-use File::Find;
-use MIME::Base64;
-use Digest::MD5;
-use Digest::SHA;
-# use AnyEvent::Strict; # only use this for debugging
-use AnyEvent::Util qw(guard fh_nonblocking WSAEWOULDBLOCK WSAEINPROGRESS);
-use AnyEvent::Socket;
+
+use AnyEvent::HTTP;
 use AnyEvent::Handle;
-use Net::SSLeay;
-use AnyEvent::TLS;
 use AnyEvent::IO;
-use AnyEvent::HTTP;
-use Fcntl ();
+use AnyEvent::Socket;
+# use AnyEvent::Strict; # only use this for debugging
+use AnyEvent::TLS;
+use AnyEvent::Util qw(guard fh_nonblocking WSAEWOULDBLOCK WSAEINPROGRESS);
+
 use Compress::Zlib;
+use Digest::MD5;
+use Digest::SHA;
 use Encode;
-use PVE::SafeSyslog;
-use PVE::INotify;
-use PVE::Tools;
-use PVE::APIServer::Formatter;
-use PVE::APIServer::Utils;
+use Fcntl ();
+use Fcntl;
+use File::Find;
+use File::stat qw();
+use IO::File;
+use MIME::Base64;
+use Net::SSLeay;
+use POSIX qw(strftime EINTR EAGAIN);
+use Socket qw(IPPROTO_TCP TCP_NODELAY SOMAXCONN);
+use Time::HiRes qw(usleep ualarm gettimeofday tv_interval);
 
-use Net::IP;
-use URI;
-use URI::Escape;
-use HTTP::Status qw(:constants);
+#use Data::Dumper; # FIXME: remove, just use: print to_json([$var], {pretty => 1}) ."\n";
 use HTTP::Date;
 use HTTP::Headers;
 use HTTP::Request;
 use HTTP::Response;
-use Data::Dumper;
+use HTTP::Status qw(:constants);
 use JSON;
+use Net::IP;
+use URI::Escape;
+use URI;
+
+use PVE::INotify;
+use PVE::SafeSyslog;
+use PVE::Tools qw(trim);
+
+use PVE::APIServer::Formatter;
+use PVE::APIServer::Utils;
 
 my $limit_max_headers = 64;
 my $limit_max_header_size = 8*1024;
@@ -114,7 +118,7 @@ sub log_aborted_request {
 }
 
 sub cleanup_reqstate {
-    my ($reqstate) = @_;
+    my ($reqstate, $deletetmpfile) = @_;
 
     delete $reqstate->{log};
     delete $reqstate->{request};
@@ -123,7 +127,7 @@ sub cleanup_reqstate {
     delete $reqstate->{starttime};
 
     if ($reqstate->{tmpfilename}) {
-       unlink $reqstate->{tmpfilename};
+       unlink $reqstate->{tmpfilename} if $deletetmpfile;
        delete $reqstate->{tmpfilename};
     }
 }
@@ -131,7 +135,7 @@ sub cleanup_reqstate {
 sub client_do_disconnect {
     my ($self, $reqstate) = @_;
 
-    cleanup_reqstate($reqstate);
+    cleanup_reqstate($reqstate, 1);
 
     my $shutdown_hdl = sub {
        my $hdl = shift;
@@ -144,7 +148,8 @@ sub client_do_disconnect {
     };
 
     if (my $proxyhdl = delete $reqstate->{proxyhdl}) {
-       &$shutdown_hdl($proxyhdl);
+       &$shutdown_hdl($proxyhdl)
+               if !$proxyhdl->{block_disconnect};
     }
 
     my $hdl = delete $reqstate->{hdl};
@@ -168,7 +173,7 @@ sub client_do_disconnect {
 sub finish_response {
     my ($self, $reqstate) = @_;
 
-    cleanup_reqstate($reqstate);
+    cleanup_reqstate($reqstate, 0);
 
     my $hdl = $reqstate->{hdl};
     return if !$hdl; # already disconnected
@@ -288,11 +293,18 @@ sub response {
 
     my $code = $resp->code;
     my $msg = $resp->message || HTTP::Status::status_message($code);
-    ($msg) = $msg =~m/^(.*)$/m;
     my $content = $resp->content;
 
+    # multiline mode only checks \n for $, so explicitly check for any \n or \r afterwards
+    ($msg) = $msg =~ m/^(.*)$/m;
+    if ($msg =~ /[\r\n]/) {
+       $code = 400; # bad request from user
+       $msg = HTTP::Status::status_message($code);
+       $content = '';
+    }
+
     if ($code =~ /^(1\d\d|[23]04)$/) {
-       # make sure content we have no content
+       # make sure informational, no content and not modified response send no content
        $content = "";
     }
 
@@ -356,6 +368,7 @@ sub response {
     } elsif ($delay && $delay > 0) {
        my $w; $w = AnyEvent->timer(after => $delay, cb => sub {
            undef $w; # delete reference
+           return if !$reqstate->{hdl}; # already disconnected
            $reqstate->{hdl}->push_write($res);
            $self->finish_response($reqstate);
        });
@@ -412,6 +425,8 @@ sub send_file_start {
 
            if (ref($download) eq 'HASH') {
                $mime = $download->{'content-type'};
+               my $encoding = $download->{'content-encoding'};
+               my $disposition = $download->{'content-disposition'};
 
                if ($download->{path} && $download->{stream} &&
                    $reqstate->{request}->header('PVEDisableProxy'))
@@ -423,6 +438,8 @@ sub send_file_start {
                        pvestreamfile => $download->{path},
                        Content_Type => $mime,
                    );
+                   $header->header('Content-Encoding' => $encoding) if defined($encoding);
+                   $header->header('Content-Disposition' => $disposition) if defined($disposition);
                    # we need some data so Content-Length gets set correctly and
                    # the proxy doesn't wait for more data - place a canary
                    my $resp = HTTP::Response->new(200, "OK", $header, "error canary");
@@ -440,6 +457,8 @@ sub send_file_start {
 
                if ($download->{stream}) {
                    my $header = HTTP::Headers->new(Content_Type => $mime);
+                   $header->header('Content-Encoding' => $encoding) if defined($encoding);
+                   $header->header('Content-Disposition' => $disposition) if defined($disposition);
                    my $resp = HTTP::Response->new(200, "OK", $header);
                    $self->response($reqstate, $resp, undef, 1, 0, $fh);
                    return;
@@ -627,8 +646,10 @@ sub websocket_proxy {
                    } elsif ($opcode == 8) {
                        my $statuscode = unpack ("n", $payload);
                        $self->dprint("websocket received close. status code: '$statuscode'");
-                       if ($reqstate->{proxyhdl}) {
-                           $reqstate->{proxyhdl}->push_shutdown();
+                       if (my $proxyhdl = $reqstate->{proxyhdl}) {
+                           $proxyhdl->{block_disconnect} = 1 if length $proxyhdl->{wbuf};
+
+                           $proxyhdl->push_shutdown();
                        }
                        $hdl->push_shutdown();
                    } elsif ($opcode == 9) {
@@ -684,10 +705,20 @@ sub proxy_request {
     eval {
        my $target;
        my $keep_alive = 1;
+
+       # stringify URI object and verify it starts with a slash
+       $uri = "$uri";
+       if ($uri !~ m@^/@) {
+           $self->error($reqstate, 400, "invalid proxy uri");
+           return;
+       }
+
+       my $may_stream_file;
        if ($host eq 'localhost') {
            $target = "http://$host:85$uri";
            # keep alive for localhost is not worth (connection setup is about 0.2ms)
            $keep_alive = 0;
+           $may_stream_file = 1;
        } elsif (Net::IP::ip_is_ipv6($host)) {
            $target = "https://[$host]:8006$uri";
        } else {
@@ -773,6 +804,10 @@ sub proxy_request {
                        $header->header(Location => $location);
                    }
                    if ($stream) {
+                       if (!$may_stream_file) {
+                           $self->error($reqstate, 403, 'streaming denied');
+                           return;
+                       }
                        sysopen(my $fh, "$stream", O_NONBLOCK | O_RDONLY)
                            or die "open stream path '$stream' for forwarding failed: $!\n";
                        my $resp = HTTP::Response->new($code, $msg, $header, undef);
@@ -870,7 +905,7 @@ sub handle_api2_request {
            $params = extract_params($r, $method);
        }
 
-       delete $params->{_dc}; # remove disable cache parameter
+       delete $params->{_dc} if $params; # remove disable cache parameter
 
        my $clientip = $reqstate->{peer_host};
 
@@ -926,7 +961,7 @@ sub handle_api2_request {
 
        my $download = $res->{download};
        $download //= $res->{data}->{download}
-            if defined($res->{data}) && ref($res->{data}) eq 'HASH';
+           if defined($res->{data}) && ref($res->{data}) eq 'HASH';
        if (defined($download)) {
            send_file_start($self, $reqstate, $download);
            return;
@@ -963,12 +998,12 @@ sub handle_spice_proxy_request {
        my $clientip = $reqstate->{peer_host};
        my $r = $reqstate->{request};
 
-        my $remip;
+       my $remip;
 
-        if ($node ne 'localhost' && PVE::INotify::nodename() !~ m/^$node$/i) {
-            $remip = $self->remote_node_ip($node);
+       if ($node ne 'localhost' && PVE::INotify::nodename() !~ m/^$node$/i) {
+           $remip = $self->remote_node_ip($node);
            $self->dprint("REMOTE CONNECT $vmid, $remip, $connect_str");
-        } else {
+       } else {
            $self->dprint("CONNECT $vmid, $node, $spiceport");
        }
 
@@ -1071,7 +1106,7 @@ sub handle_spice_proxy_request {
                        $reqstate->{hdl}->push_write($line);
                        $self->client_do_disconnect($reqstate);
                    }
-                });
+               });
            } else {
                &$startproxy();
            }
@@ -1144,111 +1179,88 @@ sub handle_request {
     }
 }
 
+my sub assert_form_disposition {
+    die "wrong Content-Disposition '$_[0]' in multipart, expected 'form-data'\n" if $_[0] ne 'form-data';
+}
+
 sub file_upload_multipart {
     my ($self, $reqstate, $auth, $method, $path, $rstate) = @_;
 
     eval {
        my $boundary = $rstate->{boundary};
        my $hdl = $reqstate->{hdl};
-
        my $startlen = length($hdl->{rbuf});
 
-       if ($rstate->{phase} == 0) { # skip everything until start
-           if ($hdl->{rbuf} =~ s/^.*?--\Q$boundary\E  \015?\012
-                       ((?:[^\015]+\015\012)* ) \015?\012//xs) {
-               my $header = $1;
-               my ($ct, $disp, $name, $filename);
-               foreach my $line (split(/\015?\012/, $header)) {
-                   # assume we have single line headers
-                   if ($line =~ m/^Content-Type\s*:\s*(.*)/i) {
-                       $ct = parse_content_type($1);
-                   } elsif ($line =~ m/^Content-Disposition\s*:\s*(.*)/i) {
-                       ($disp, $name, $filename) = parse_content_disposition($1);
-                   }
-               }
+       my $newline_re = qr/\015?\012/;
+       my $delim_re = qr/--\Q$boundary\E${newline_re}/;
+       my $close_delim_re = qr/--\Q$boundary\E--/;
 
-               if (!($disp && $disp eq 'form-data' && $name)) {
-                   syslog('err', "wrong content disposition in multipart - abort upload");
-                   $rstate->{phase} = -1;
-               } else {
+       # Phase 0 - preserve boundary, but remove everything before
+       if ($rstate->{phase} == 0 && $hdl->{rbuf} =~ s/^.*?($delim_re)/$1/s) {
+           $rstate->{read} += $startlen - length($hdl->{rbuf});
+           $rstate->{phase} = 1;
+       }
 
-                   $rstate->{fieldname} = $name;
+       my $remove_until_data = sub {
+           my ($hdl) = @_;
+           # remove any remaining multipart "headers" like Content-Type
+           $hdl->{rbuf} =~ s/^.*?${newline_re}{2}//s;
+       };
 
-                   if ($filename) {
-                       if ($name eq 'filename') {
-                           # found file upload data
-                           $rstate->{phase} = 1;
-                           $rstate->{filename} = $filename;
-                       } else {
-                           syslog('err', "wrong field name for file upload - abort upload");
-                           $rstate->{phase} = -1;
-                       }
-                   } else {
-                       # found form data for field $name
-                       $rstate->{phase} = 2;
-                   }
-               }
-           } else {
-               my $len = length($hdl->{rbuf});
-               substr($hdl->{rbuf}, 0, $len - $rstate->{maxheader}, '')
-                   if $len > $rstate->{maxheader}; # skip garbage
+       my $extract_form_disposition = sub {
+           my ($name) = @_;
+           if ($hdl->{rbuf} =~ s/^${delim_re}.*?Content-Disposition: (.*?); name="$name"(.*?${delim_re})/$2/s) {
+               assert_form_disposition($1);
+               $remove_until_data->($hdl);
+               $hdl->{rbuf} =~ s/^(.*?)(${delim_re})/$2/s;
+               $rstate->{params}->{$name} = trim($1);
+           }
+       };
+
+       if ($rstate->{phase} == 1) { # Phase 1 - parse payload without file data
+           $extract_form_disposition->('content');
+           $extract_form_disposition->('checksum-algorithm');
+           $extract_form_disposition->('checksum');
+
+           if ($hdl->{rbuf} =~ s/^${delim_re}Content-Disposition: (.*?); name="(.*?)"; filename="([^"]+)"//s) {
+               assert_form_disposition($1);
+               die "wrong field name '$2' for file upload, expected 'filename'" if $2 ne "filename";
+               $rstate->{phase} = 2;
+               $rstate->{params}->{filename} = trim($3);
+               $remove_until_data->($hdl); # any remaining multipart "headers" like Content-Type
            }
-       } elsif ($rstate->{phase} == 1) { # inside file - dump until end marker
-           if ($hdl->{rbuf} =~ s/^(.*?)\015?\012(--\Q$boundary\E(--)? \015?\012(.*))$/$2/xs) {
-               my ($rest, $eof) = ($1, $3);
-               my $len = length($rest);
-               die "write to temporary file failed - $!"
-                   if syswrite($rstate->{outfh}, $rest) != $len;
-               $rstate->{ctx}->add($rest);
-               $rstate->{params}->{filename} = $rstate->{filename};
-               $rstate->{md5sum} = $rstate->{ctx}->hexdigest;
-               $rstate->{bytes} += $len;
-               $rstate->{phase} =  $eof ? 100 : 0;
+       }
+
+       if ($rstate->{phase} == 2) { # Phase 2 - dump content into file
+           my ($data, $write_length);
+           if ($hdl->{rbuf} =~ s/^(.*?)${newline_re}?+${close_delim_re}.*$//s) {
+               $data = $1;
+               $write_length = length($data);
+               $rstate->{phase} =  100;
            } else {
-               my $len = length($hdl->{rbuf});
-               my $wlen = $len - $rstate->{boundlen};
-               if ($wlen > 0) {
-                   my $data = substr($hdl->{rbuf}, 0, $wlen, '');
-                   die "write to temporary file failed - $!"
-                       if syswrite($rstate->{outfh}, $data) != $wlen;
-                   $rstate->{bytes} += $wlen;
-                   $rstate->{ctx}->add($data);
-               }
+               $write_length = length($hdl->{rbuf}) - $rstate->{boundlen};
+               $data = substr($hdl->{rbuf}, 0, $write_length, '') if $write_length > 0;
            }
-       } elsif ($rstate->{phase} == 2) { # inside normal field
-
-           if ($hdl->{rbuf} =~ s/^(.*?)\015?\012(--\Q$boundary\E(--)? \015?\012(.*))$/$2/xs) {
-               my ($rest, $eof) = ($1, $3);
-               my $len = length($rest);
-               $rstate->{post_size} += $len;
-               if ($rstate->{post_size} < $limit_max_post) {
-                   $rstate->{params}->{$rstate->{fieldname}} = $rest;
-                   $rstate->{phase} = $eof ? 100 : 0;
-               } else {
-                   syslog('err', "form data to large - abort upload");
-                   $rstate->{phase} = -1; # skip
-               }
+
+           if ($write_length > 0) {
+               syswrite($rstate->{outfh}, $data) == $write_length or die "write to temporary file failed - $!\n";
+               $rstate->{bytes} += $write_length;
            }
-       } else { # skip
-           my $len = length($hdl->{rbuf});
-           substr($hdl->{rbuf}, 0, $len, ''); # empty rbuf
        }
 
-       $rstate->{read} += ($startlen - length($hdl->{rbuf}));
+       if ($rstate->{phase} == 100) { # Phase 100 - transfer finished
+           my $elapsed = tv_interval($rstate->{starttime});
+           syslog('info', "multipart upload complete (size: %dB time: %.3fs rate: %.2fMiB/s filename: %s)",
+               $rstate->{bytes}, $elapsed, $rstate->{bytes} / ($elapsed * 1024 * 1024),
+               $rstate->{params}->{filename}
+           );
+           $self->handle_api2_request($reqstate, $auth, $method, $path, $rstate);
+       }
 
-       if (!$rstate->{done} && ($rstate->{read} + length($hdl->{rbuf})) >= $rstate->{size}) {
-           $rstate->{done} = 1; # make sure we dont get called twice
-           if ($rstate->{phase} < 0 || !$rstate->{md5sum}) {
-               die "upload failed\n";
-           } else {
-               my $elapsed = tv_interval($rstate->{starttime});
+       $rstate->{read} += $startlen - length($hdl->{rbuf});
 
-               my $rate = int($rstate->{bytes}/($elapsed*1024*1024));
-               syslog('info', "multipart upload complete " .
-                      "(size: %d time: %ds rate: %.2fMiB/s md5sum: $rstate->{md5sum})",
-                      $rstate->{bytes}, $elapsed, $rate);
-               $self->handle_api2_request($reqstate, $auth, $method, $path, $rstate);
-           }
+       if ($rstate->{read} + length($hdl->{rbuf}) >= $rstate->{size} && $rstate->{phase} != 100) {
+           die "upload failed";
        }
     };
     if (my $err = $@) {
@@ -1271,26 +1283,6 @@ sub parse_content_type {
     return  wantarray ? ($ct) : $ct;
 }
 
-sub parse_content_disposition {
-    my ($line) = @_;
-
-    my ($disp, @params) = split(/\s*[;,]\s*/o, $line);
-    my $name;
-    my $filename;
-
-    foreach my $v (@params) {
-       if ($v =~ m/^\s*name\s*=\s*(\S+?)\s*$/o) {
-           $name = $1;
-           $name =~ s/^"(.*)"$/$1/;
-       } elsif ($v =~ m/^\s*filename\s*=\s*(.+?)\s*$/o) {
-           $filename = $1;
-           $filename =~ s/^"(.*)"$/$1/;
-       }
-    }
-
-    return  wantarray ? ($disp, $name, $filename) : $disp;
-}
-
 my $tmpfile_seq_no = 0;
 
 sub get_upload_filename {
@@ -1317,208 +1309,300 @@ sub unshift_read_header {
            my $r = $reqstate->{request};
            if ($line eq '') {
 
-               my $path = uri_unescape($r->uri->path());
-               my $method = $r->method();
-
                $r->push_header($state->{key}, $state->{val})
                    if $state->{key};
 
-               if (!$known_methods->{$method}) {
-                   my $resp = HTTP::Response->new(HTTP_NOT_IMPLEMENTED, "method '$method' not available");
-                   $self->response($reqstate, $resp);
-                   return;
-               }
+               return if !$self->process_header($reqstate);
+               return if !$self->ensure_tls_connection($reqstate);
 
-               my $conn = $r->header('Connection');
-               my $accept_enc = $r->header('Accept-Encoding');
-               $reqstate->{accept_gzip} = ($accept_enc && $accept_enc =~ m/gzip/) ? 1 : 0;
+               $self->authenticate_and_handle_request($reqstate);
 
-               if ($conn) {
-                   $reqstate->{keep_alive} = 0 if $conn =~ m/close/oi;
-               } else {
-                   if ($reqstate->{proto}->{ver} < 1001) {
-                       $reqstate->{keep_alive} = 0;
-                   }
-               }
+           } elsif ($line =~ /^([^:\s]+)\s*:\s*(.*)/) {
+               $r->push_header($state->{key}, $state->{val}) if $state->{key};
+               ($state->{key}, $state->{val}) = ($1, $2);
+               $self->unshift_read_header($reqstate, $state);
+           } elsif ($line =~ /^\s+(.*)/) {
+               $state->{val} .= " $1";
+               $self->unshift_read_header($reqstate, $state);
+           } else {
+               $self->error($reqstate, 506, "unable to parse request header");
+           }
+       };
+       warn $@ if $@;
+    });
+};
 
-               my $te  = $r->header('Transfer-Encoding');
-               if ($te && lc($te) eq 'chunked') {
-                   # Handle chunked transfer encoding
-                   $self->error($reqstate, 501, "chunked transfer encoding not supported");
-                   return;
-               } elsif ($te) {
-                   $self->error($reqstate, 501, "Unknown transfer encoding '$te'");
-                   return;
-               }
+# sends an (error) response and returns 0 in case of errors
+sub process_header {
+    my ($self, $reqstate) = @_;
 
-               my $pveclientip = $r->header('PVEClientIP');
-               my $base_uri = $self->{base_uri};
+    my $request = $reqstate->{request};
 
-               # fixme: how can we make PVEClientIP header trusted?
-               if ($self->{trusted_env} && $pveclientip) {
-                   $reqstate->{peer_host} = $pveclientip;
-               } else {
-                   $r->header('PVEClientIP', $reqstate->{peer_host});
-               }
+    my $path = uri_unescape($request->uri->path());
+    my $method = $request->method();
+
+    if (!$known_methods->{$method}) {
+       my $resp = HTTP::Response->new(HTTP_NOT_IMPLEMENTED, "method '$method' not available");
+       $self->response($reqstate, $resp);
+       return 0;
+    }
 
-               my $len = $r->header('Content-Length');
+    my $conn = $request->header('Connection');
+    my $accept_enc = $request->header('Accept-Encoding');
+    $reqstate->{accept_gzip} = ($accept_enc && $accept_enc =~ m/gzip/) ? 1 : 0;
 
-               my $host_header = $r->header('Host');
-               if (my $rpcenv = $self->{rpcenv}) {
-                   $rpcenv->set_request_host($host_header);
-               }
+    if ($conn) {
+       $reqstate->{keep_alive} = 0 if $conn =~ m/close/oi;
+    } else {
+       if ($reqstate->{proto}->{ver} < 1001) {
+           $reqstate->{keep_alive} = 0;
+       }
+    }
 
-               # header processing complete - authenticate now
+    my $te  = $request->header('Transfer-Encoding');
+    if ($te && lc($te) eq 'chunked') {
+       # Handle chunked transfer encoding
+       $self->error($reqstate, 501, "chunked transfer encoding not supported");
+       return 0;
+    } elsif ($te) {
+       $self->error($reqstate, 501, "Unknown transfer encoding '$te'");
+       return 0;
+    }
 
-               my $auth = {};
-               if ($self->{spiceproxy}) {
-                   my $connect_str = $host_header;
-                   my ($vmid, $node, $port) = $self->verify_spice_connect_url($connect_str);
-                   if (!(defined($vmid) && $node && $port)) {
-                       $self->error($reqstate, HTTP_UNAUTHORIZED, "invalid ticket");
-                       return;
-                   }
-                   $self->handle_spice_proxy_request($reqstate, $connect_str, $vmid, $node, $port);
-                   return;
-               } elsif ($path =~ m/^\Q$base_uri\E/) {
-                   my $token = $r->header('CSRFPreventionToken');
-                   my $cookie = $r->header('Cookie');
-                   my $auth_header = $r->header('Authorization');
-
-                   # prefer actual cookie
-                   my $ticket = PVE::APIServer::Formatter::extract_auth_value($cookie, $self->{cookie_name});
-
-                   # fallback to cookie in 'Authorization' header
-                   $ticket = PVE::APIServer::Formatter::extract_auth_value($auth_header, $self->{cookie_name})
-                       if !$ticket;
-
-                   # finally, fallback to API token if no ticket has been provided so far
-                   my $api_token;
-                   $api_token = PVE::APIServer::Formatter::extract_auth_value($auth_header, $self->{apitoken_name})
-                       if !$ticket;
-
-                   my ($rel_uri, $format) = &$split_abs_uri($path, $self->{base_uri});
-                   if (!$format) {
-                       $self->error($reqstate, HTTP_NOT_IMPLEMENTED, "no such uri");
-                       return;
-                   }
+    my $pveclientip = $request->header('PVEClientIP');
 
-                   eval {
-                       $auth = $self->auth_handler($method, $rel_uri, $ticket, $token, $api_token,
-                                                   $reqstate->{peer_host});
-                   };
-                   if (my $err = $@) {
-                       # HACK: see Note 1
-                       Net::SSLeay::ERR_clear_error();
-                       # always delay unauthorized calls by 3 seconds
-                       my $delay = 3;
-
-                       if (ref($err) eq "PVE::Exception") {
-
-                           $err->{code} ||= HTTP_INTERNAL_SERVER_ERROR,
-                           my $resp = HTTP::Response->new($err->{code}, $err->{msg});
-                           $self->response($reqstate, $resp, undef, 0, $delay);
-
-                       } elsif (my $formatter = PVE::APIServer::Formatter::get_login_formatter($format)) {
-                           my ($raw, $ct, $nocomp) =
-                               $formatter->($path, $auth, $self->{formatter_config});
-                           my $resp;
-                           if (ref($raw) && (ref($raw) eq 'HTTP::Response')) {
-                               $resp = $raw;
-                           } else {
-                               $resp = HTTP::Response->new(HTTP_UNAUTHORIZED, "Login Required");
-                               $resp->header("Content-Type" => $ct);
-                               $resp->content($raw);
-                           }
-                           $self->response($reqstate, $resp, undef, $nocomp, $delay);
-                       } else {
-                           my $resp = HTTP::Response->new(HTTP_UNAUTHORIZED, $err);
-                           $self->response($reqstate, $resp, undef, 0, $delay);
-                       }
-                       return;
-                   }
-               }
+    # fixme: how can we make PVEClientIP header trusted?
+    if ($self->{trusted_env} && $pveclientip) {
+       $reqstate->{peer_host} = $pveclientip;
+    } else {
+       $request->header('PVEClientIP', $reqstate->{peer_host});
+    }
+
+    if (my $rpcenv = $self->{rpcenv}) {
+       $rpcenv->set_request_host($request->header('Host'));
+    }
 
-               $reqstate->{log}->{userid} = $auth->{userid};
+    return 1;
+}
 
-               if ($len) {
+# sends an (redirect) response, disconnects the client and returns 0 if
+# connection is not TLS-protected
+sub ensure_tls_connection {
+    my ($self, $reqstate) = @_;
 
-                   if (!($method eq 'PUT' || $method eq 'POST')) {
-                       $self->error($reqstate, 501, "Unexpected content for method '$method'");
-                       return;
-                   }
+    # Skip if server doesn't use TLS
+    if (!$self->{tls_ctx}) {
+       return 1;
+    }
+
+    # TLS session exists, so the handshake has succeeded
+    if ($reqstate->{hdl}->{tls}) {
+       return 1;
+    }
 
-                   my $ctype = $r->header('Content-Type');
-                   my ($ct, $boundary);
-                   ($ct, $boundary)= parse_content_type($ctype) if $ctype;
+    my $request = $reqstate->{request};
+    my $method = $request->method();
 
-                   if ($auth->{isUpload} && !$self->{trusted_env}) {
-                       die "upload 'Content-Type '$ctype' not implemented\n"
-                           if !($boundary && $ct && ($ct eq 'multipart/form-data'));
+    my $h_host = $reqstate->{request}->header('Host');
 
-                       die "upload without content length header not supported" if !$len;
+    die "Header field 'Host' not found in request\n"
+       if !$h_host;
 
-                       die "upload without content length header not supported" if !$len;
+    my $secure_host = "https://" . ($h_host =~ s/^http(s)?:\/\///r);
 
-                       $self->dprint("start upload $path $ct $boundary");
+    my $header = HTTP::Headers->new('Location' => $secure_host . $request->uri());
 
-                       my $tmpfilename = get_upload_filename();
-                       my $outfh = IO::File->new($tmpfilename, O_RDWR|O_CREAT|O_EXCL, 0600) ||
-                           die "unable to create temporary upload file '$tmpfilename'";
+    if ($method eq 'GET' || $method eq 'HEAD') {
+       $self->error($reqstate, 301, 'Moved Permanently', $header);
+    } else {
+       $self->error($reqstate, 308, 'Permanent Redirect', $header);
+    }
 
-                       $reqstate->{keep_alive} = 0;
+    # disconnect the client so they may immediately connect again via HTTPS
+    $self->client_do_disconnect($reqstate);
 
-                       my $boundlen = length($boundary) + 8; # \015?\012--$boundary--\015?\012
+    return 0;
+}
 
-                       my $state = {
-                           size => $len,
-                           boundary => $boundary,
-                           ctx => Digest::MD5->new,
-                           boundlen =>  $boundlen,
-                           maxheader => 2048 + $boundlen, # should be large enough
-                           params => decode_urlencoded($r->url->query()),
-                           phase => 0,
-                           read => 0,
-                           post_size => 0,
-                           starttime => [gettimeofday],
-                           outfh => $outfh,
-                       };
-                       $reqstate->{tmpfilename} = $tmpfilename;
-                       $reqstate->{hdl}->on_read(sub { $self->file_upload_multipart($reqstate, $auth, $method, $path, $state); });
-                       return;
-                   }
+sub authenticate_and_handle_request {
+    my ($self, $reqstate) = @_;
 
-                   if ($len > $limit_max_post) {
-                       $self->error($reqstate, 501, "for data too large");
-                       return;
-                   }
+    my $request = $reqstate->{request};
+    my $method = $request->method();
+
+    my $path = uri_unescape($request->uri->path());
+    my $base_uri = $self->{base_uri};
+
+    my $auth = {};
+
+    if ($self->{spiceproxy}) {
+       my $connect_str = $request->header('Host');
+       my ($vmid, $node, $port) = $self->verify_spice_connect_url($connect_str);
+
+       if (!(defined($vmid) && $node && $port)) {
+           $self->error($reqstate, HTTP_UNAUTHORIZED, "invalid ticket");
+           return;
+       }
+
+       $self->handle_spice_proxy_request($reqstate, $connect_str, $vmid, $node, $port);
+       return;
+
+    } elsif ($path =~ m/^\Q$base_uri\E/) {
+       my $token = $request->header('CSRFPreventionToken');
+       my $cookie = $request->header('Cookie');
+       my $auth_header = $request->header('Authorization');
+
+       # prefer actual cookie
+       my $ticket = PVE::APIServer::Formatter::extract_auth_value(
+           $cookie,
+           $self->{cookie_name}
+       );
+
+       # fallback to cookie in 'Authorization' header
+       if (!$ticket) {
+           $ticket = PVE::APIServer::Formatter::extract_auth_value(
+               $auth_header,
+               $self->{cookie_name}
+           );
+       }
+
+       # finally, fallback to API token if no ticket has been provided so far
+       my $api_token;
+       if (!$ticket) {
+           $api_token = PVE::APIServer::Formatter::extract_auth_value(
+               $auth_header,
+               $self->{apitoken_name}
+           );
+       }
+
+       my ($rel_uri, $format) = &$split_abs_uri($path, $self->{base_uri});
+       if (!$format) {
+           $self->error($reqstate, HTTP_NOT_IMPLEMENTED, "no such uri");
+           return;
+       }
+
+       eval {
+           $auth = $self->auth_handler(
+               $method,
+               $rel_uri,
+               $ticket,
+               $token,
+               $api_token,
+               $reqstate->{peer_host}
+           );
+       };
+       if (my $err = $@) {
+           # HACK: see Note 1
+           Net::SSLeay::ERR_clear_error();
+           # always delay unauthorized calls by 3 seconds
+           my $delay = 3;
+
+           if (ref($err) eq "PVE::Exception") {
+
+               $err->{code} ||= HTTP_INTERNAL_SERVER_ERROR,
+               my $resp = HTTP::Response->new($err->{code}, $err->{msg});
+               $self->response($reqstate, $resp, undef, 0, $delay);
+
+           } elsif (my $formatter = PVE::APIServer::Formatter::get_login_formatter($format)) {
+               my ($raw, $ct, $nocomp) =
+                   $formatter->($path, $auth, $self->{formatter_config});
+
+               my $resp;
+               if (ref($raw) && (ref($raw) eq 'HTTP::Response')) {
+                   $resp = $raw;
 
-                   if (!$ct || $ct eq 'application/x-www-form-urlencoded' || $ct eq 'application/json') {
-                       $reqstate->{hdl}->unshift_read(chunk => $len, sub {
-                           my ($hdl, $data) = @_;
-                           $r->content($data);
-                           $self->handle_request($reqstate, $auth, $method, $path);
-                       });
-                   } else {
-                       $self->error($reqstate, 506, "upload 'Content-Type '$ctype' not implemented");
-                   }
                } else {
-                   $self->handle_request($reqstate, $auth, $method, $path);
+                   $resp = HTTP::Response->new(HTTP_UNAUTHORIZED, "Login Required");
+                   $resp->header("Content-Type" => $ct);
+                   $resp->content($raw);
                }
-           } elsif ($line =~ /^([^:\s]+)\s*:\s*(.*)/) {
-               $r->push_header($state->{key}, $state->{val}) if $state->{key};
-               ($state->{key}, $state->{val}) = ($1, $2);
-               $self->unshift_read_header($reqstate, $state);
-           } elsif ($line =~ /^\s+(.*)/) {
-               $state->{val} .= " $1";
-               $self->unshift_read_header($reqstate, $state);
+
+               $self->response($reqstate, $resp, undef, $nocomp, $delay);
+
            } else {
-               $self->error($reqstate, 506, "unable to parse request header");
+               my $resp = HTTP::Response->new(HTTP_UNAUTHORIZED, $err);
+               $self->response($reqstate, $resp, undef, 0, $delay);
            }
-       };
-       warn $@ if $@;
-    });
-};
+
+           return;
+       }
+    }
+
+    $reqstate->{log}->{userid} = $auth->{userid};
+    my $len = $request->header('Content-Length');
+
+    if ($len) {
+
+       if (!($method eq 'PUT' || $method eq 'POST')) {
+           $self->error($reqstate, 501, "Unexpected content for method '$method'");
+           return;
+       }
+
+       my $ctype = $request->header('Content-Type');
+       my ($ct, $boundary) = $ctype ? parse_content_type($ctype) : ();
+
+       if ($auth->{isUpload} && !$self->{trusted_env}) {
+           die "upload 'Content-Type '$ctype' not implemented\n"
+               if !($boundary && $ct && ($ct eq 'multipart/form-data'));
+
+           die "upload without content length header not supported" if !$len;
+
+           die "upload without content length header not supported" if !$len;
+
+           $self->dprint("start upload $path $ct $boundary");
+
+           my $tmpfilename = get_upload_filename();
+           my $outfh = IO::File->new($tmpfilename, O_RDWR|O_CREAT|O_EXCL, 0600) ||
+               die "unable to create temporary upload file '$tmpfilename'";
+
+           $reqstate->{keep_alive} = 0;
+
+           my $boundlen = length($boundary) + 8; # \015?\012--$boundary--\015?\012
+
+           my $state = {
+               size => $len,
+               boundary => $boundary,
+               boundlen =>  $boundlen,
+               maxheader => 2048 + $boundlen, # should be large enough
+               params => decode_urlencoded($request->url->query()),
+               phase => 0,
+               read => 0,
+               post_size => 0,
+               starttime => [gettimeofday],
+               outfh => $outfh,
+           };
+
+           die "'tmpfilename' query parameter is not allowed for file uploads\n"
+               if exists $state->{params}->{tmpfilename};
+
+           $reqstate->{tmpfilename} = $tmpfilename;
+           $reqstate->{hdl}->on_read(sub {
+               $self->file_upload_multipart($reqstate, $auth, $method, $path, $state);
+           });
+
+           return;
+       }
+
+       if ($len > $limit_max_post) {
+           $self->error($reqstate, 501, "for data too large");
+           return;
+       }
+
+       if (!$ct || $ct eq 'application/x-www-form-urlencoded' || $ct eq 'application/json') {
+           $reqstate->{hdl}->unshift_read(chunk => $len, sub {
+               my ($hdl, $data) = @_;
+               $request->content($data);
+               $self->handle_request($reqstate, $auth, $method, $path);
+           });
+
+       } else {
+           $self->error($reqstate, 506, "upload 'Content-Type '$ctype' not implemented");
+       }
+
+    } else {
+       $self->handle_request($reqstate, $auth, $method, $path);
+    }
+}
 
 sub push_request_header {
     my ($self, $reqstate) = @_;
@@ -1539,6 +1623,12 @@ sub push_request_header {
                        $self->error($reqstate, 506, "http protocol version $maj.$min not supported");
                        return;
                    }
+                   if ($url =~ m|^[^/]*@|) {
+                       # if an '@' comes before the first slash proxy forwarding might consider
+                       # the frist part of the url to be part of an authority...
+                       $self->error($reqstate, 400, "invalid url");
+                       return;
+                   }
 
                    $self->{request_count}++; # only count valid request headers
                    if ($self->{request_count} >= $self->{max_requests}) {
@@ -1742,11 +1832,16 @@ sub accept_connections {
                    };
                    if (my $err = $@) { syslog('err', "$err"); }
                },
-               ($self->{tls_ctx} ? (tls => "accept", tls_ctx => $self->{tls_ctx}) : ()));
+           );
            $handle_creation = 0;
 
            $self->dprint("ACCEPT FH" .  $clientfh->fileno() . " CONN$self->{conn_count}");
 
+           if ($self->{tls_ctx}) {
+               $self->dprint("Setting TLS to autostart");
+               $reqstate->{hdl}->unshift_read(tls_autostart => $self->{tls_ctx}, "accept");
+           }
+
            $self->push_request_header($reqstate);
        }
     };
@@ -1875,6 +1970,9 @@ sub new {
            honor_cipher_order => 1,
        };
 
+       # workaround until anyevent supports TLS 1.3 ciphersuites directly
+       my $ciphersuites = delete $self->{ssl}->{ciphersuites};
+
        foreach my $k (keys %$ssl_defaults) {
            $self->{ssl}->{$k} //= $ssl_defaults->{$k};
        }
@@ -1883,13 +1981,26 @@ sub new {
            $self->{ssl}->{dh} = 'skip2048';
        }
 
-       my $tls_ctx_flags = &Net::SSLeay::OP_NO_COMPRESSION | &Net::SSLeay::OP_SINGLE_ECDH_USE | &Net::SSLeay::OP_SINGLE_DH_USE;
-       if ( delete $self->{ssl}->{honor_cipher_order} ) {
+       my $tls_ctx_flags = 0;
+       $tls_ctx_flags |= &Net::SSLeay::OP_NO_COMPRESSION;
+       $tls_ctx_flags |= &Net::SSLeay::OP_SINGLE_ECDH_USE;
+       $tls_ctx_flags |= &Net::SSLeay::OP_SINGLE_DH_USE;
+       $tls_ctx_flags |= &Net::SSLeay::OP_NO_RENEGOTIATION;
+       if (delete $self->{ssl}->{honor_cipher_order}) {
            $tls_ctx_flags |= &Net::SSLeay::OP_CIPHER_SERVER_PREFERENCE;
        }
+       # workaround until anyevent supports disabling TLS 1.3 directly
+       if (exists($self->{ssl}->{tlsv1_3}) && !$self->{ssl}->{tlsv1_3}) {
+           $tls_ctx_flags |= &Net::SSLeay::OP_NO_TLSv1_3;
+       }
+
 
        $self->{tls_ctx} = AnyEvent::TLS->new(%{$self->{ssl}});
        Net::SSLeay::CTX_set_options($self->{tls_ctx}->{ctx}, $tls_ctx_flags);
+       if (defined($ciphersuites)) {
+           warn "Failed to set TLS 1.3 ciphersuites '$ciphersuites'\n"
+               if !Net::SSLeay::CTX_set_ciphersuites($self->{tls_ctx}->{ctx}, $ciphersuites);
+       }
     }
 
     if ($self->{spiceproxy}) {