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', "/tmp/brisk.sock");
29 define('PENDINGPAGE_CONTINUE', 0);
30 define('PENDINGPAGE_WAITDATA', 1);
31 define('PENDINGPAGE_FLUSH', 2);
34 var $socket; // socket handler of page stream
35 var $status; // status can be 0: waiting for data, 1: flush phase
37 var $kalive; // if no message are sent after RD_KEEPALIVE_TOUT secs we send a keepalive from server
38 var $msg; // place where store failed fwrite data
39 var $msg_sz; // size of content
41 var $method; // method used to request the page
42 var $header; // array of header fields
43 var $get; // array of get args
44 var $post; // array of post args
45 var $cookie; // array of cookie args
46 var $path; // requested path
47 var $addr; // source address
48 var $contsz; // expected content size
49 var $rest; // number of missing bytes
50 var $cont; // content of unfinished POST
52 function PendingPage($socket, $curtime, $kalive)
54 $this->socket = $socket;
55 fprintf(STDERR, "SOCKET ADD: %s\n", $this->socket);
56 $this->kalive = $curtime + $kalive;
59 static function pendingpage_continue($socket, $curtime, $kalive, $method,
60 $header, $get, $post, $cookie,
61 $path, $addr, $rest, $cont)
63 $thiz = static::pendingpage_staminal($socket, PENDINGPAGE_CONTINUE, $curtime, $kalive, $method,
64 $header, $get, $post, $cookie, $path, $addr, $rest, $cont);
65 $thiz->to_continuing();
70 function context_get(&$header, &$socket, &$path, &$addr, &$get, &$post, &$cookie)
72 $header = $this->header;
73 $socket = $this->socket;
77 post_manage($post, $this->cont);
78 $cookie = $this->cookie;
79 fprintf(STDERR, "SOCKET GET: %s\n", $this->socket);
82 function to_continuing()
84 printf("TRY FLUSH CREATE\n");
86 $header['HTTP-Response'] = "100 Continue";
87 $hea = headers_render($header, 0);
88 $hea_sz = mb_strlen($hea, "ASCII");
90 $this->status = PENDINGPAGE_CONTINUE;
92 $this->msg_sz = $hea_sz;
95 static function pendingpage_waiting($socket, $curtime, $kalive, $method, $header,
96 $get, $post, $cookie, $path, $addr, $rest, $cont)
98 return (static::pendingpage_staminal($socket, PENDINGPAGE_WAITDATA, $curtime, $kalive, $method,
99 $header, $get, $post, $cookie, $path, $addr, $rest, $cont));
102 static function pendingpage_staminal($socket, $status, $curtime, $kalive, $method, $header,
103 $get, $post, $cookie, $path, $addr, $rest, $cont)
105 $thiz = new PendingPage($socket, $curtime, $kalive);
106 $thiz->status = $status;
108 $thiz->method = $method;
109 $thiz->header = $header;
112 $thiz->cookie = $cookie;
115 $thiz->contsz = $header['Content-Length'];
122 function try_wait($curtime)
124 // if completed return TRUE to allow data to be processed,
125 // if timeout or max content dimension is exceeded move to flushing
128 static function pendingpage_flushing($socket, $curtime, $kalive, $enc, $header_out, $body)
130 $thiz = new PendingPage($socket, $curtime, $kalive);
132 $thiz->to_flushing($enc, $header_out, $body);
137 function to_flushing($enc, &$header_out, $body)
139 printf("TRY FLUSH CREATE: enc[%s]\n", $enc);
140 $body_out = ZLibStream::compress($enc, $body);
142 $header_out['Content-Encoding'] = $enc;
143 $body_out_sz = mb_strlen($body_out, "ASCII");
144 $hea = headers_render($header_out, $body_out_sz);
145 $hea_sz = mb_strlen($hea, "ASCII");
147 $this->status = PENDINGPAGE_FLUSH;
148 $this->msg = $hea.$body_out;
149 $this->msg_sz = $hea_sz + $body_out_sz;
150 printf("TRY FLUSH CREATE: enc[%s]\n", $enc);
153 /* return TRUE if is removable from it's list */
154 function try_flush($curtime)
156 fprintf(STDERR, "IMPORTANT: TRY_FLUSH: start %d\n", $this->status);
157 if ($this->status != PENDINGPAGE_FLUSH &&
158 $this->status != PENDINGPAGE_CONTINUE)
161 if ($this->kalive < $curtime) {
162 printf("TRY FLUSH CLOSE 1\n");
163 fclose($this->socket);
167 $wret = fwrite($this->socket, $this->msg, mb_strlen($this->msg, "ASCII"));
168 if ($wret == FALSE && $wret !== FALSE) {
169 printf("TRY FLUSH PendingPage::try_flush: wret 0 but not FALSE [%d]\n", mb_strlen($this->msg, "ASCII"));
171 if ($wret == $this->msg_sz) {
172 if ($this->status == PENDINGPAGE_CONTINUE) {
173 $this->status = PENDINGPAGE_WAITDATA;
177 printf("TRY FLUSH CLOSE 2\n");
178 fclose($this->socket);
182 $this->msg_sz -= $wret;
183 $this->msg = mb_substr($this->msg, $wret, $this->msg_sz, "ASCII");
185 printf("TRY FLUSH RETURN FALSE\n");
190 function socket_get()
192 return ($this->socket);
195 } // class PendingPage {