3 * brisk - spush/brisk-spush.phh
5 * Copyright (C) 2012 Matteo Nastasi
6 * mailto: nastasi@alternativeoutput.it
7 * matteo.nastasi@milug.org
8 * web: http://www.alternativeoutput.it
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABLILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details. You should have received a
19 * copy of the GNU General Public License along with this program; if
20 * not, write to the Free Software Foundation, Inc, 59 Temple Place -
21 * Suite 330, Boston, MA 02111-1307, USA.
26 $HTTP_HOST="dodo.birds.lan";
27 define('USOCK_PATH_PFX', "/tmp/brisk");
28 define('USOCK_POOL_N', 10);
29 define('SOCK_SHARD_N', 2);
31 define('PENDINGPAGE_CONTINUE', 0);
32 define('PENDINGPAGE_WAITDATA', 1);
33 define('PENDINGPAGE_FLUSH', 2);
36 var $socket; // socket handler of page stream
37 var $status; // status can be 0: waiting for data, 1: flush phase
39 var $kalive; // if no message are sent after RD_KEEPALIVE_TOUT secs we send a keepalive from server
40 var $msg; // place where store failed fwrite data
41 var $msg_sz; // size of content
43 var $method; // method used to request the page
44 var $header; // array of header fields
45 var $get; // array of get args
46 var $post; // array of post args
47 var $cookie; // array of cookie args
48 var $path; // requested path
49 var $addr; // source address
50 var $contsz; // expected content size
51 var $rest; // number of missing bytes
52 var $cont; // content of unfinished POST
54 function PendingPage($socket, $curtime, $kalive)
56 $this->socket = $socket;
57 // fprintf(STDERR, "SOCKET ADD: %s\n", $this->socket);
58 $this->kalive = $curtime + $kalive;
61 static function pendingpage_continue($socket, $curtime, $kalive, $method,
62 $header, $get, $post, $cookie,
63 $path, $addr, $rest, $cont)
65 $thiz = static::pendingpage_staminal($socket, PENDINGPAGE_CONTINUE, $curtime, $kalive, $method,
66 $header, $get, $post, $cookie, $path, $addr, $rest, $cont);
67 $thiz->to_continuing();
72 function context_get(&$header, &$socket, &$path, &$addr, &$get, &$post, &$cookie)
74 $header = $this->header;
75 $socket = $this->socket;
79 post_manage($post, $this->cont);
80 $cookie = $this->cookie;
81 fprintf(STDERR, "SOCKET GET: %s\n", $this->socket);
84 function to_continuing()
86 // printf("TRY FLUSH CREATE\n");
88 $header['HTTP-Response'] = "100 Continue";
89 $hea = headers_render($header, 0);
90 $hea_sz = mb_strlen($hea, "ASCII");
92 $this->status = PENDINGPAGE_CONTINUE;
94 $this->msg_sz = $hea_sz;
97 static function pendingpage_waiting($socket, $curtime, $kalive, $method, $header,
98 $get, $post, $cookie, $path, $addr, $rest, $cont)
100 return (static::pendingpage_staminal($socket, PENDINGPAGE_WAITDATA, $curtime, $kalive, $method,
101 $header, $get, $post, $cookie, $path, $addr, $rest, $cont));
104 static function pendingpage_staminal($socket, $status, $curtime, $kalive, $method, $header,
105 $get, $post, $cookie, $path, $addr, $rest, $cont)
107 $thiz = new PendingPage($socket, $curtime, $kalive);
108 $thiz->status = $status;
110 $thiz->method = $method;
111 $thiz->header = $header;
114 $thiz->cookie = $cookie;
117 $thiz->contsz = $header['Content-Length'];
124 function try_wait($curtime)
126 // if completed return TRUE to allow data to be processed,
127 // if timeout or max content dimension is exceeded move to flushing
130 static function pendingpage_flushing($socket, $curtime, $kalive, $enc, $header_out, $body)
132 $thiz = new PendingPage($socket, $curtime, $kalive);
134 $thiz->to_flushing($enc, $header_out, $body);
139 function to_flushing($enc, &$header_out, $body)
141 // printf("TRY FLUSH CREATE: enc[%s]\n", $enc);
142 $body_out = ZLibStream::compress($enc, $body);
144 $header_out['Content-Encoding'] = $enc;
145 $body_out_sz = mb_strlen($body_out, "ASCII");
146 $hea = headers_render($header_out, $body_out_sz);
147 $hea_sz = mb_strlen($hea, "ASCII");
149 $this->status = PENDINGPAGE_FLUSH;
150 $this->msg = $hea.$body_out;
151 $this->msg_sz = $hea_sz + $body_out_sz;
152 // printf("TRY FLUSH CREATE: enc[%s]\n", $enc);
155 /* return TRUE if is removable from it's list */
156 function try_flush($curtime)
158 // fprintf(STDERR, "IMPORTANT: TRY_FLUSH: start %d\n", $this->status);
159 if ($this->status != PENDINGPAGE_FLUSH &&
160 $this->status != PENDINGPAGE_CONTINUE)
163 if ($this->kalive < $curtime) {
164 // printf("TRY FLUSH CLOSE 1\n");
165 @fclose($this->socket);
169 $wret = @fwrite($this->socket, $this->msg, mb_strlen($this->msg, "ASCII"));
170 if ($wret == FALSE && $wret !== FALSE) {
171 // printf("TRY FLUSH PendingPage::try_flush: wret 0 but not FALSE [%d]\n", mb_strlen($this->msg, "ASCII"));
173 if ($wret == $this->msg_sz) {
174 if ($this->status == PENDINGPAGE_CONTINUE) {
175 $this->status = PENDINGPAGE_WAITDATA;
179 // printf("TRY FLUSH CLOSE 2\n");
180 fclose($this->socket);
184 $this->msg_sz -= $wret;
185 $this->msg = mb_substr($this->msg, $wret, $this->msg_sz, "ASCII");
187 // printf("TRY FLUSH RETURN FALSE\n");
192 function socket_get()
194 return ($this->socket);
197 } // class PendingPage {