first commit

README

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+Usage example:
+
+include("phpfpm.inc.php");
+$filename = "/home/bob/tmp/foo.php";
+$response = phpfpm_request("localhost", 9000, $filename);
+var_dump($response)

phpfpm.inc.php

@@ -0,0 +1,295 @@
+<?php
+
+//USAGE EXAMPLE:
+//$filename = "/home/pachanga/tmp/foo.php";
+//$response = phpfpm_request("localhost", 9000, $filename);
+//var_dump($response);
+
+define('FCGI_VERSION_1', 1);
+define('FCGI_BEGIN_REQUEST', 1);
+define('FCGI_ABORT_REQUEST', 2);
+define('FCGI_END_REQUEST', 3);
+define('FCGI_PARAMS', 4);
+define('FCGI_STDIN', 5);
+define('FCGI_STDOUT', 6);
+define('FCGI_STDERR', 7);
+define('FCGI_DATA', 8);
+define('FCGI_GET_VALUES', 9);
+define('FCGI_GET_VALUES_RESULT', 10);
+
+function _phpfpm_echo($what)
+{
+  echo $what;
+}
+
+function _phpfpm_make_server_vars($filename) 
+{
+  $nsv["SERVER_SOFTWARE"]="";
+  $nsv["SERVER_NAME"]="fake";
+  $nsv["SERVER_PROTOCOL"]='1.0';
+  $nsv["SERVER_PORT"]=80;
+  $nsv["SERVER_ADDR"]='localhost';
+  $nsv["SERVER_API"]='1.0';
+  $nsv["REQUEST_METHOD"]="GET";
+  $nsv["PATH_TRANSLATED"]=realpath($filename);
+  $nsv["SCRIPT_NAME"]=basename($filename);
+  $nsv["QUERY_STRING"]='/' . basename($filename);
+  $nsv["REMOTE_HOST"]='localhost';
+  $nsv["DOCUMENT_ROOT"]='/';
+  $nsv["REQUEST_URI"]='/' . basename($filename);
+  $nsv["PATH_INFO"]=$filename;
+
+  return $nsv;
+}
+
+class phpfpm_connection 
+{
+  private $peof = false;
+
+  function build_fcgi_packet($type, $content) 
+  {
+    $clen=strlen($content);
+
+    $packet=chr(FCGI_VERSION_1);
+    $packet.=chr($type);
+    $packet.=chr(0).chr(1); // Request id = 1
+    $packet.=chr((int)($clen/256)).chr($clen%256); // Content length
+    $packet.=chr(0).chr(0); // No padding and reserved
+    $packet.=$content;
+
+    return($packet);
+
+  }
+
+  function build_fcgi_nvpair($name, $value) 
+  {
+    $nlen = strlen($name);
+    $vlen = strlen($value);
+
+    if ($nlen < 128) {
+
+      $nvpair = chr($nlen);
+
+    } else {
+
+      $nvpair = chr(($nlen >> 24) | 0x80) . chr(($nlen >> 16) & 0xFF) . chr(($nlen >> 8) & 0xFF) . chr($nlen & 0xFF);
+
+    }
+
+    if ($vlen < 128) {
+
+      $nvpair .= chr($vlen);
+
+    } else {
+
+      $nvpair .= chr(($vlen >> 24) | 0x80) . chr(($vlen >> 16) & 0xFF) . chr(($vlen >> 8) & 0xFF) . chr($vlen & 0xFF);
+
+    }
+
+    return $nvpair . $name . $value;
+
+  } 
+
+  function decode_fcgi_packet($data) 
+  {
+    $ret["version"]=ord($data{0});
+    $ret["type"]=ord($data{1});
+    $ret["length"]=(ord($data{4}) << 8)+ord($data{5});
+    $ret["content"]=substr($data, 8, $ret["length"]);
+
+    return($ret);
+
+  }
+
+  function parser_open($args, $filename, &$rq_err, &$cgi_headers) 
+  {
+    global $conf, $add_errmsg;
+
+    // Connect to FastCGI server
+
+    $fcgi_server=explode(":", $args);
+
+    if (!$this->sck=fsockopen($fcgi_server[0], $fcgi_server[1], $errno, $errstr, 5)) {
+
+      $rq_err=500;
+      $tmperr="mod_fcgi: unable to contact application server ($errno : $errstr).";
+      $add_errmsg.=($tmperr."<br><br>");
+      _phpfpm_echo("WARN: ".$tmperr, NW_EL_WARNING);
+      return (false);
+
+    }
+
+    // Begin session
+
+    $begin_rq_packet=chr(0).chr(1).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0);
+    fwrite($this->sck, $this->build_fcgi_packet(FCGI_BEGIN_REQUEST, $begin_rq_packet));
+
+    // Build params
+
+    $fcgi_params_packet = '';
+    $fcgi_params_packet.=$this->build_fcgi_nvpair("GATEWAY_INTERFACE", "FastCGI/1.0");
+    $nsv = _phpfpm_make_server_vars($filename);
+    foreach($nsv as $key=>$var) 
+      $fcgi_params_packet.=$this->build_fcgi_nvpair($key, $var);
+
+    $stdin_content="";
+
+    // Send params
+
+    fwrite($this->sck, $this->build_fcgi_packet(FCGI_PARAMS, $fcgi_params_packet));
+    fwrite($this->sck, $this->build_fcgi_packet(FCGI_PARAMS, ""));
+
+    //var_dump($fcgi_params_packet);
+
+    // Build and send stdin flow
+
+    if ($stdin_content) fwrite($this->sck, $this->build_fcgi_packet(FCGI_STDIN, $stdin_content));
+    fwrite($this->sck, $this->build_fcgi_packet(FCGI_STDIN, ""));
+
+    // Read answers from fastcgi server
+
+    $content="";
+
+    while (($p1=strpos($content, "\r\n\r\n"))===false) {
+
+      $tmpp=$this->decode_fcgi_packet($packet=fread($this->sck, 8));
+      //var_dump($tmpp);
+      $tl=$tmpp["length"]%8;
+      $tadd=($tl?(8-$tl):0);
+      $resp=$this->decode_fcgi_packet($packet.fread($this->sck, $tmpp["length"]+$tadd));
+      //var_dump($resp);
+
+      if ($valid_pck=($resp["type"]==FCGI_STDOUT || $resp["type"]==FCGI_STDERR)) $content.=$resp["content"];
+
+      if ($resp["type"]==FCGI_STDERR) _phpfpm_echo("WARN: mod_fcgi: app server returned error : '".$resp["content"]."'", NW_EL_WARNING);
+
+    }
+
+    if (feof($this->sck)) $this->peof=true;
+
+    if ($p1) {
+
+      $headers=explode("\n", trim(substr($content, 0, $p1)));
+      $content=substr($content, $p1+4);
+
+    }
+
+    $GLOBALS["http_resp"]="";
+
+    //$cnh=access_query("fcginoheader");
+
+    foreach ($headers as $s) if ($s=trim($s)) {
+
+      if (substr($s, 0, 5)=="HTTP/") {
+
+        $hd_key="STATUS";
+        strtok($s, " ");
+
+      } else {
+
+        $hd_key=strtok($s, ":");
+
+      }
+
+      $hd_val=trim(strtok(""));
+      $hku=strtoupper($hd_key);
+
+      //if ($cnh) foreach ($cnh as $nohdr) if ($hku==strtoupper($nohdr)) $hd_key="";
+
+      if ($hd_key) {
+
+        if ($hku=="SET-COOKIE") {
+
+          $cgi_headers["cookies"][]=$hd_val;
+
+        } else {
+
+          $cgi_headers[$hd_key]=$hd_val;
+
+        }
+
+      }
+
+    }
+
+    $this->parsed_output=$content;
+
+  }
+
+  function parser_get_output() 
+  {
+    if (!$this->peof && !$this->parsed_output) {
+
+      $tmpp=$this->decode_fcgi_packet($packet=fread($this->sck, 8));
+      $tl=$tmpp["length"]%8;
+      $tadd=($tl?(8-$tl):0);
+      $resp=$this->decode_fcgi_packet($packet.fread($this->sck, $tmpp["length"]+$tadd));
+
+      if ($valid_pck=($resp["type"]==FCGI_STDOUT || $resp["type"]==FCGI_STDERR)) {
+
+        $content.=$resp["content"];
+
+      } else {
+
+        $this->peof=true;				
+
+      }
+
+      if ($resp["type"]==FCGI_STDERR) _phpfpm_echo("WARN: mod_fcgi: app server returned error : '".$resp["content"]."'", NW_EL_WARNING);
+
+    }
+
+    $content = '';
+    if ($this->parsed_output) {
+
+      $content=$this->parsed_output;
+      $this->parsed_output="";
+
+    }
+
+    return($content);
+
+  }
+
+  function parser_eof() 
+  {
+    return($this->peof);
+  }
+
+  function parser_close() 
+  {
+    $this->peof=false;
+    fclose($this->sck);
+  }
+
+}
+
+function phpfpm_guess_host($port)
+{
+  exec('netstat -lnt', $out, $ret);
+
+  foreach($out as $line)
+  {
+    $line = trim($line);
+    if(!$line)
+      continue;
+    $items = preg_split("/\s+/", $line);
+    if($items[0] == "tcp" && preg_match("~(\S+):(\d+)~", $items[3], $m) && $items[5] = "LISTEN")
+    {
+      if($m[2] == $port)
+        return $m[1];
+    }
+  }
+  return false;
+}
+
+function phpfpm_request($host, $port, $filename)
+{
+  $fcgi = new phpfpm_connection();
+  $rg_err = array();
+  $cgi_headers = array();
+  $fcgi->parser_open("$host:$port", $filename, $rq_err, $cgi_headers);
+  //var_dump($rq_err);
+  return $fcgi->parser_get_output();
+}
+