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fhem.pl/01_FHEMWEB.pm/TcpServerUtils.pm: Nonblocking patches by geek (Forum #24799)
git-svn-id: https://svn.fhem.de/fhem/trunk@7212 2b470e98-0d58-463d-a4d8-8e2adae1ed80
This commit is contained in:
rudolfkoenig
parent
1c4b5026ac
commit
1c7f79308c
@ -7,6 +7,7 @@ use warnings;
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use TcpServerUtils;
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use HttpUtils;
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use Time::HiRes qw(gettimeofday);
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use Errno qw(:POSIX);
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#########################
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# Forward declaration
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@ -27,7 +28,6 @@ sub FW_makeEdit($$$);
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sub FW_makeImage(@);
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sub FW_makeTable($$$@);
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sub FW_makeTableFromArray($$@);
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sub FW_myPrint($$);
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sub FW_pF($@);
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sub FW_pH(@);
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sub FW_pHPlain(@);
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@ -175,7 +175,7 @@ FHEMWEB_Initialize($)
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# Initialize internal structures
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map { addToAttrList($_) } ( "webCmd", "icon", "devStateIcon",
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"widgetOverride", "sortby", "devStateStyle");
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InternalTimer(time()+60, "FW_closeOldClients", 0, 0);
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InternalTimer(time()+60, "FW_closeInactiveClients", 0, 0);
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$FW_dir = "$attr{global}{modpath}/www";
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$FW_icondir = "$FW_dir/images";
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@ -261,8 +261,10 @@ FW_Read($)
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if($hash->{SERVERSOCKET}) { # Accept and create a child
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my $nhash = TcpServer_Accept($hash, "FHEMWEB");
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return if(!$nhash);
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my $wt = AttrVal($name, "alarmTimeout", undef);
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$nhash->{ALARMTIMEOUT} = $wt if($wt);
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$nhash->{CD}->blocking(0);
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return;
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}
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@ -292,14 +294,19 @@ FW_Read($)
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my $buf;
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my $ret = sysread($c, $buf, 1024);
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if(!defined($ret) || $ret <= 0) {
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if(!defined($ret) && $! == EWOULDBLOCK ){
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$hash->{wantWrite} = 1
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if(TcpServer_WantWrite($hash));
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return;
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} elsif(!$ret) { # 0==EOF, undef=error
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CommandDelete(undef, $name);
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Log3 $FW_wname, 4, "Connection closed for $name";
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Log3 $FW_wname, 4, "Connection closed for $name: ".
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(defined($ret) ? 'EOF' : $!);
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return;
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}
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$hash->{BUF} .= $buf;
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if($defs{$FW_wname}{SSL} && $c->can('pending')) {
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if($hash->{SSL} && $c->can('pending')) {
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while($c->pending()) {
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sysread($c, $buf, 1024);
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$hash->{BUF} .= $buf;
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@ -351,20 +358,21 @@ FW_Read($)
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}
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}
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if($headerOptions[0]) {
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print $c "HTTP/1.1 200 OK\r\n",
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$FW_headercors,
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"Content-Length: 0\r\n\r\n";
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TcpServer_WriteBlocking($hash,
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"HTTP/1.1 200 OK\r\n".
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$FW_headercors.
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"Content-Length: 0\r\n\r\n");
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delete $hash->{CONTENT_LENGTH};
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delete $hash->{BUF};
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return;
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exit(1);
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};
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if(!$pwok) {
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my $msg = AttrVal($FW_wname, "basicAuthMsg", "Fhem: login required");
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print $c "HTTP/1.1 401 Authorization Required\r\n",
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"WWW-Authenticate: Basic realm=\"$msg\"\r\n",
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$FW_headercors,
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"Content-Length: 0\r\n\r\n";
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TcpServer_WriteBlocking($hash,
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"HTTP/1.1 401 Authorization Required\r\n".
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"WWW-Authenticate: Basic realm=\"$msg\"\r\n".
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$FW_headercors.
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"Content-Length: 0\r\n\r\n");
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delete $hash->{CONTENT_LENGTH};
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delete $hash->{BUF};
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return;
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@ -383,22 +391,38 @@ FW_Read($)
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$arg = "" if(!defined($arg));
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Log3 $FW_wname, 4, "HTTP $name GET $arg";
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$FW_ME = "/" . AttrVal($FW_wname, "webname", "fhem");
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my $pid;
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my $pf = AttrVal($FW_wname, "plotfork", undef);
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if($pf) { # 0 disables
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# Process SVG rendering as a parallel process
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my $p = $data{FWEXT};
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if(grep { $p->{$_}{FORKABLE} && $arg =~ m+^$FW_ME$_+ } keys %{$p}) {
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if($pid = fork) {
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my $pid = fork();
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if($pid) { # success, parent
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use constant PRIO_PROCESS => 0;
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setpriority(PRIO_PROCESS, $pid, getpriority(PRIO_PROCESS,$pid) + $pf);
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# a) while child writes a new request might arrive if client uses
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# pipelining or
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# b) parent doesn't know about ssl-session changes due to child writing
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# to socket
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# -> have to close socket in parent... so that its only used in this
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# child.
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TcpServer_Disown( $hash );
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delete($defs{$name});
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return;
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}
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} elsif(defined($pid)){ # child
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$hash->{isChild} = 1;
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} # fork failed and continue in parent
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}
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}
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my $cacheable = FW_answerCall($arg);
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return if($cacheable == -1); # Longpoll / inform request;
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if($cacheable == -1){
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# Longpoll / inform request;
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exit if($hash->{isChild});
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return;
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}
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my $compressed = "";
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if(($FW_RETTYPE =~ m/text/i ||
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@ -413,14 +437,20 @@ FW_Read($)
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my $length = length($FW_RET);
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my $expires = ($cacheable?
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("Expires: ".localtime($now+900)." GMT\r\n") : "");
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Log3 $FW_wname, 4, "$arg / RL:$length / $FW_RETTYPE / $compressed / $expires";
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$hash->{pid} = $pid if(defined($pid));
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addToWritebuffer($hash,
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Log3 $FW_wname, 4,
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"$$:$name: $arg / RL:$length / $FW_RETTYPE / $compressed / $expires";
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if( ! addToWritebuffer($hash,
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"HTTP/1.1 200 OK\r\n" .
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"Content-Length: $length\r\n" .
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$expires . $compressed . $FW_headercors .
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"Content-Type: $FW_RETTYPE\r\n\r\n" .
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$FW_RET, "FW_closeConn");
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$FW_RET, "FW_closeConn") ){
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Log3 $name, 4, "Closing connection $name due to full buffer in FW_Read";
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TcpServer_Close( $hash );
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delete($defs{$name});
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}
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exit if($hash->{isChild});
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}
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sub
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@ -432,7 +462,7 @@ FW_closeConn($)
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TcpServer_Close($hash);
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delete($defs{$hash->{NAME}});
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}
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exit if(defined($hash->{pid}));
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exit if($hash->{isChild});
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}
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###########################
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@ -509,11 +539,12 @@ FW_answerCall($)
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$arg = $1; # The stuff behind FW_ME, continue to check for commands/FWEXT
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} else {
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my $c = $me->{CD};
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Log3 $FW_wname, 4, "$FW_wname: redirecting $arg to $FW_ME";
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print $c "HTTP/1.1 302 Found\r\n",
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"Content-Length: 0\r\n", $FW_headercors,
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"Location: $FW_ME\r\n\r\n";
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TcpServer_WriteBlocking($me,
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"HTTP/1.1 302 Found\r\n".
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"Content-Length: 0\r\n".
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$FW_headercors.
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"Location: $FW_ME\r\n\r\n");
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FW_closeConn($FW_chash);
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return -1;
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}
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@ -555,11 +586,11 @@ FW_answerCall($)
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$me->{NTFY_ORDER} = $FW_cname; # else notifyfn won't be called
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%ntfyHash = ();
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my $c = $me->{CD};
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print $c "HTTP/1.1 200 OK\r\n",
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$FW_headercors,
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"Content-Type: application/octet-stream; charset=$FW_encoding\r\n\r\n",
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FW_roomStatesForInform($me);
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TcpServer_WriteBlocking($me,
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"HTTP/1.1 200 OK\r\n".
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$FW_headercors.
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"Content-Type: application/octet-stream; charset=$FW_encoding\r\n\r\n".
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FW_roomStatesForInform($me));
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return -1;
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}
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@ -619,11 +650,11 @@ FW_answerCall($)
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my $tgt = $FW_ME;
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if($FW_detail) { $tgt .= "?detail=$FW_detail" }
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elsif($FW_room) { $tgt .= "?room=$FW_room" }
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my $c = $me->{CD};
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print $c "HTTP/1.1 302 Found\r\n",
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"Content-Length: 0\r\n", $FW_headercors,
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"Location: $tgt\r\n",
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"\r\n";
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TcpServer_WriteBlocking($me,
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"HTTP/1.1 302 Found\r\n".
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"Content-Length: 0\r\n". $FW_headercors.
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"Location: $tgt\r\n".
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"\r\n");
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return -1;
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}
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@ -1438,20 +1469,10 @@ FW_fileList($)
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sub
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FW_outputChunk($$$)
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{
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my ($c, $buf, $d) = @_;
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my ($hash, $buf, $d) = @_;
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$buf = $d->deflate($buf) if($d);
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FW_myPrint($c, sprintf("%x\r\n", length($buf)).$buf."\r\n") if(length($buf));
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}
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sub
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FW_myPrint($$)
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{
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my ($c, $buf) = @_;
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my ($off, $len) = (0, length($buf));
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while($off < $len) {
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my $ret = syswrite($c, $buf, $len-$off, $off);
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last if(!$ret || $ret < 0);
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$off += $ret;
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if( length($buf) ){
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TcpServer_WriteBlocking($hash, sprintf("%x\r\n",length($buf)) .$buf."\r\n");
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}
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}
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@ -1462,7 +1483,6 @@ FW_returnFileAsStream($$$$$)
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my $etag;
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my $c = $FW_chash->{CD};
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if($cacheable) {
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#Check for If-None-Match header (ETag)
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my @if_none_match_lines = grep /If-None-Match/, @FW_httpheader;
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@ -1474,7 +1494,7 @@ FW_returnFileAsStream($$$$$)
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$etag = (stat($path))[9]; #mtime
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if(defined($etag) && defined($if_none_match) && $etag eq $if_none_match) {
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FW_myPrint($c,"HTTP/1.1 304 Not Modified\r\n".
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TcpServer_WriteBlocking($FW_chash,"HTTP/1.1 304 Not Modified\r\n".
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$FW_headercors . "\r\n");
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FW_closeConn($FW_chash);
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return -1;
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@ -1493,29 +1513,32 @@ FW_returnFileAsStream($$$$$)
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my $expires = $cacheable ? ("Expires: ".gmtime(time()+900)." GMT\r\n"): "";
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my $compr = ((int(@FW_enc) == 1 && $FW_enc[0] =~ m/gzip/) && $FW_use_zlib) ?
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"Content-Encoding: gzip\r\n" : "";
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FW_myPrint($c, "HTTP/1.1 200 OK\r\n".
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TcpServer_WriteBlocking($FW_chash, "HTTP/1.1 200 OK\r\n".
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$compr . $expires . $FW_headercors . $etag .
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"Transfer-Encoding: chunked\r\n" .
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"Content-Type: $type; charset=$FW_encoding\r\n\r\n");
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my $d = Compress::Zlib::deflateInit(-WindowBits=>31) if($compr);
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FW_outputChunk($c, $FW_RET, $d);
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FW_outputChunk($FW_chash, $FW_RET, $d);
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my $buf;
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while(sysread(FH, $buf, 2048)) {
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if($doEsc) { # FileLog special
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$buf =~ s/</</g;
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$buf =~ s/>/>/g;
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}
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FW_outputChunk($c, $buf, $d);
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FW_outputChunk($FW_chash, $buf, $d);
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}
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close(FH);
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FW_outputChunk($c, $suffix, $d);
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FW_outputChunk($FW_chash, $suffix, $d);
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if($compr) {
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$buf = $d->flush();
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FW_myPrint($c,sprintf("%x\r\n",length($buf)).$buf."\r\n") if($buf);
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if($buf){
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TcpServer_WriteBlocking($FW_chash,
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sprintf("%x\r\n",length($buf)) .$buf."\r\n");
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}
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}
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FW_myPrint($c, "0\r\n\r\n");
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TcpServer_WriteBlocking($FW_chash, "0\r\n\r\n");
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FW_closeConn($FW_chash);
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return -1;
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}
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@ -2267,8 +2290,15 @@ FW_Notify($$)
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}
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}
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addToWritebuffer($ntfy, join("\n", map { s/\n/ /gm; $_ } @data)."\n")
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if(@data);
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if(@data){
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if(!addToWritebuffer($ntfy, join("\n", map { s/\n/ /gm; $_ } @data)."\n") ){
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my $name = $ntfy->{NAME};
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Log3 $name, 4, "Closing connection $name due to full buffer in FW_Notify";
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TcpServer_Close($ntfy);
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delete($defs{$name});
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}
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}
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return undef;
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}
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@ -2423,18 +2453,18 @@ FW_Set($@)
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#####################################
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sub
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FW_closeOldClients()
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FW_closeInactiveClients()
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{
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my $now = time();
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foreach my $dev (keys %defs) {
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next if(!$defs{$dev}{TYPE} || $defs{$dev}{TYPE} ne "FHEMWEB" ||
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!$defs{$dev}{LASTACCESS} || $defs{$dev}{inform} ||
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($now - $defs{$dev}{LASTACCESS}) < 60);
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Log3 $FW_wname, 4, "Closing connection $dev";
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Log3 $FW_wname, 4, "Closing inactive connection $dev";
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FW_Undef($defs{$dev}, "");
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delete $defs{$dev};
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}
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InternalTimer($now+60, "FW_closeOldClients", 0, 0);
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InternalTimer($now+60, "FW_closeInactiveClients", 0, 0);
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}
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sub
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@ -5,6 +5,7 @@ package main;
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use strict;
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use warnings;
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use IO::Socket;
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use Errno qw(:POSIX);
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sub
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TcpServer_Open($$$)
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@ -93,8 +94,12 @@ TcpServer_Accept($$)
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SSL_version => 'SSLv23:!SSLv3:!SSLv2', #Forum #27565
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Timeout => 4,
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});
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if(!$ret && $! ne "Socket is not connected") {
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Log3 $name, 1, "$type SSL/HTTPS error: $!";
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my $err = $!;
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if( !$ret
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&& $err != EWOULDBLOCK
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&& $err ne "Socket is not connected") {
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Log3 $name, 1, "$type SSL/HTTPS error: $err";
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close($clientinfo[0]);
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return undef;
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}
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@ -107,6 +112,7 @@ TcpServer_Accept($$)
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$nhash{FD} = $clientinfo[0]->fileno();
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$nhash{CD} = $clientinfo[0]; # sysread / close won't work on fileno
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$nhash{TYPE} = $type;
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$nhash{SSL} = $hash->{SSL};
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$nhash{STATE} = "Connected";
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$nhash{SNAME} = $name;
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$nhash{TEMPORARY} = 1; # Don't want to save it
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@ -155,4 +161,118 @@ TcpServer_Close($)
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}
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return undef;
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}
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# close a (SSL-)Socket in local process
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# avoids interfering with other processes using it
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# this is critical for SSL and helps with other issues, too
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sub
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TcpServer_Disown($)
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{
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my ($hash) = @_;
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my $name = $hash->{NAME};
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if( defined($hash->{CD}) ){
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if( $hash->{SSL} ){
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$hash->{CD}->close( SSL_no_shutdown => 1);
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} else {
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close( $hash->{CD} );
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}
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delete($hash->{CD});
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delete($selectlist{$name});
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delete($hash->{FD}); # Avoid Read->Close->Write
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}
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return;
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}
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# wait for a socket to become ready
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# takes IO::Socket::SSL + non-blocking into account
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sub
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TcpServer_Wait($$)
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{
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my( $hash, $direction ) = @_;
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my $read = '';
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my $write ='';
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if( $direction eq 'read' || $hash->{wantRead} ){
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vec( $read, $hash->{FD}, 1) = 1;
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} elsif( $direction eq 'write' || $hash->{wantWrite} ){
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vec( $write, $hash->{FD}, 1) = 1;
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} else {
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return undef;
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}
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my $ret = select( $read, $write, undef, undef );
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return if $ret == -1;
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if( vec( $read, $hash->{FD}, 1) ){
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delete $hash->{wantRead};
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}
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if( vec( $write, $hash->{FD}, 1) ){
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delete $hash->{wantWrite};
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}
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# return true on success
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return 1;
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}
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|
||||
# WantRead/Write: keep ssl constants local
|
||||
sub
|
||||
TcpServer_WantRead($)
|
||||
{
|
||||
my( $hash ) = @_;
|
||||
|
||||
return $hash->{SSL}
|
||||
&& $hash->{CD}
|
||||
&& $hash->{CD}->errstr == &IO::Socket::SSL::SSL_WANT_READ;
|
||||
}
|
||||
|
||||
sub
|
||||
TcpServer_WantWrite($)
|
||||
{
|
||||
my( $hash ) = @_;
|
||||
|
||||
return $hash->{SSL}
|
||||
&& $hash->{CD}
|
||||
&& $hash->{CD}->errstr == &IO::Socket::SSL::SSL_WANT_WRITE;
|
||||
}
|
||||
|
||||
# write until all data is done.
|
||||
# hanldes both, blocking and non-blocking sockets
|
||||
# ... with or without SSL
|
||||
sub
|
||||
TcpServer_WriteBlocking($$)
|
||||
{
|
||||
my( $hash, $txt ) = @_;
|
||||
|
||||
my $sock = $hash->{CD};
|
||||
return undef if(!$sock);
|
||||
my $off = 0;
|
||||
my $len = length($txt);
|
||||
|
||||
while($off < $len) {
|
||||
if(!TcpServer_Wait($hash, 'write')) {
|
||||
TcpServer_Close($hash);
|
||||
return undef;
|
||||
}
|
||||
|
||||
my $ret = syswrite($sock, $txt, $len-$off, $off);
|
||||
|
||||
if( defined $ret ){
|
||||
$off += $ret;
|
||||
|
||||
} elsif( $! == EWOULDBLOCK ){
|
||||
$hash->{wantRead} = 1
|
||||
if TcpServer_WantRead($hash);
|
||||
|
||||
} else {
|
||||
TcpServer_Close($hash);
|
||||
return undef; # error
|
||||
}
|
||||
}
|
||||
|
||||
return 1; # success
|
||||
}
|
||||
|
||||
1;
|
||||
|
||||
37
fhem/fhem.pl
37
fhem/fhem.pl
@ -34,6 +34,7 @@ use strict;
|
||||
use warnings;
|
||||
use IO::Socket;
|
||||
use Time::HiRes qw(gettimeofday);
|
||||
use Errno qw(:POSIX);
|
||||
|
||||
|
||||
##################################################
|
||||
@ -541,9 +542,11 @@ while (1) {
|
||||
my $hash = $selectlist{$p};
|
||||
if(defined($hash->{FD})) {
|
||||
vec($rin, $hash->{FD}, 1) = 1
|
||||
if(!defined($hash->{directWriteFn}));
|
||||
if(!defined($hash->{directWriteFn}) && !$hash->{wantWrite} );
|
||||
vec($win, $hash->{FD}, 1) = 1
|
||||
if(defined($hash->{directWriteFn}) || defined($hash->{$wbName}));
|
||||
if( (defined($hash->{directWriteFn}) ||
|
||||
defined($hash->{$wbName}) ||
|
||||
$hash->{wantWrite} ) && !$hash->{wantRead} );
|
||||
}
|
||||
vec($ein, $hash->{EXCEPT_FD}, 1) = 1
|
||||
if(defined($hash->{"EXCEPT_FD"}));
|
||||
@ -595,6 +598,8 @@ while (1) {
|
||||
next if(!$isDev && !$isDirect);
|
||||
|
||||
if(defined($hash->{FD}) && vec($rout, $hash->{FD}, 1)) {
|
||||
delete $hash->{wantRead};
|
||||
|
||||
if($hash->{directReadFn}) {
|
||||
$hash->{directReadFn}($hash);
|
||||
} else {
|
||||
@ -602,21 +607,28 @@ while (1) {
|
||||
}
|
||||
}
|
||||
|
||||
if((defined($hash->{$wbName}) || defined($hash->{directWriteFn})) &&
|
||||
defined($hash->{FD}) && vec($wout, $hash->{FD}, 1)) {
|
||||
if( defined($hash->{FD}) && vec($wout, $hash->{FD}, 1)) {
|
||||
delete $hash->{wantWrite};
|
||||
|
||||
if($hash->{directWriteFn}) {
|
||||
$hash->{directWriteFn}($hash);
|
||||
|
||||
} else {
|
||||
} elsif(defined($hash->{$wbName})) {
|
||||
my $wb = $hash->{$wbName};
|
||||
alarm($hash->{ALARMTIMEOUT}) if($hash->{ALARMTIMEOUT});
|
||||
my $ret = syswrite($hash->{CD}, $wb);
|
||||
my $werr = int($!);
|
||||
alarm(0) if($hash->{ALARMTIMEOUT});
|
||||
if(!$ret || $ret < 0) {
|
||||
|
||||
if(!defined($ret) && $werr == EWOULDBLOCK ) {
|
||||
$hash->{wantRead} = 1
|
||||
if(TcpServer_WantRead($hash));
|
||||
|
||||
} elsif(!$ret) { # zero=EOF, undef=error
|
||||
Log 4, "Write error to $p, deleting $hash->{NAME}";
|
||||
TcpServer_Close($hash);
|
||||
CommandDelete(undef, $hash->{NAME});
|
||||
|
||||
} else {
|
||||
if($ret == length($wb)) {
|
||||
delete($hash->{$wbName});
|
||||
@ -3855,13 +3867,8 @@ addToWritebuffer($$@)
|
||||
{
|
||||
my ($hash, $txt, $callback, $nolimit) = @_;
|
||||
|
||||
if(defined($hash->{pid})) { # Wont go to the main select in a forked process
|
||||
my ($off, $len) = (0, length($txt));
|
||||
while($off < $len) {
|
||||
my $ret = syswrite($hash->{CD}, $txt, $len-$off, $off);
|
||||
last if(!$ret || $ret <= 0);
|
||||
$off += $ret;
|
||||
}
|
||||
if($hash->{isChild}) { # Wont go to the main select in a forked process
|
||||
TcpServer_WriteBlocking( $hash, $txt );
|
||||
if($callback) {
|
||||
no strict "refs";
|
||||
my $ret = &{$callback}($hash);
|
||||
@ -3875,7 +3882,11 @@ addToWritebuffer($$@)
|
||||
$hash->{$wbName} = $txt;
|
||||
} elsif($nolimit || length($hash->{$wbName}) < 102400) {
|
||||
$hash->{$wbName} .= $txt;
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1; # success
|
||||
}
|
||||
|
||||
sub
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user