reports_logs.php

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<?php

/******************************************************************** 
 * Copyright (c) 2006, Graham P Phillips
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright 
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above 
 *     copyright notice, this list of conditions and the following 
 *     disclaimer in the documentation and/or other materials provided 
 *     with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 ********************************************************************/

include_once "php_params.php";
include_once "layout.php";

define("LOCALHOST", '127.0.0.1');  /* 127.0.0.1 is better than localhost */
define("LOGMUXD_PORT", 8887);
define("DB_USER", '');
define("MENU1", "Reports");
define("MENU2", "View Logs"); 

$error = array();
$conn = daemon_connect(LOCALHOST, LOGMUXD_PORT, DB_USER, $error);
if (is_null($conn)) {
  display_error_msg(MENU1, MENU2, $error);
  return;
}

$logs = read_daemon_logs($conn, $error); 
if (is_null($logs)) {
  display_error_msg(MENU1, MENU2, $error);
  pg_close($conn);
  return;
}

display_logs($logs); 
return;

function read_daemon_logs($conn, &$error) {
  $command = "SELECT log from TblDest";
  $result = exec_sql($conn, $command, $error, LOCALHOST, LOGMUXD_PORT);
  if (!$result) { 
    display_error_msg(MENU1, MENU2, $error);
    return;
  }
  $logs = array();
  for ($row = 0; $row < pg_NumRows($result); $row++) {
    $logs[] = pg_result($result, $row, 0); 
  }
  pg_freeresult($result);
  return $logs;
} 

function display_logs($logs) {
  
  $widget = "<h2> Logs </h2>\n" . implode("<br>\n", $logs); 
  display_page(MENU1, MENU2, $widget);
}

/* Provides a wrapper to pg_exec that includes error message generation. 
 * Returns the same result as pg_exec; false on error or a result index if 
 * the sql command could be executed.
 * $error is an array that is appended to if there is an error 
 * $host and $port just used for error reporting
 * The caller is expected to free the returned object with pg_freeresult. 
 */

function exec_sql($conn, $cmd, &$error, $host, $port) {

  $result = pg_exec($conn, $cmd);
  if (!$result) {
     $detail = pg_ErrorMessage($conn);
     $error[] = "SQL command failed. Connected to \"" . $host . "\" on port " . $port . "." . " " . $detail; 
     return false; 
  }
  return $result;
}

?>