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Root/src/Pluf/HTTP/Response/ServerErrorDebug.php

<?php
/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
# ***** BEGIN LICENSE BLOCK *****
# This file is part of Plume Framework, a simple PHP Application Framework.
# Copyright (C) 2001-2007 Loic d'Anterroches and contributors.
#
# Plume Framework is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# Plume Framework is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#
# ***** END LICENSE BLOCK ***** */

class Pluf_HTTP_Response_ServerErrorDebug extends Pluf_HTTP_Response
{
    /**
     * Debug version of a server error.
     *
     * @param Exception The exception being raised.
     * @param string Mime type
     */
    function __construct($e, $mimetype=null)
    {
        $this->status_code = 500;
        $this->content = Pluf_HTTP_Response_ServerErrorDebug_Pretty($e);
    }
}

/**
 * @credits http://www.sitepoint.com/blogs/2006/04/04/pretty-blue-screen/
 */
function Pluf_HTTP_Response_ServerErrorDebug_Pretty($e) 
{
    $o = create_function('$in','return htmlspecialchars($in);');
    $sub = create_function('$f','$loc="";if(isset($f["class"])){
        $loc.=$f["class"].$f["type"];}
        if(isset($f["function"])){$loc.=$f["function"];}
        if(!empty($loc)){$loc=htmlspecialchars($loc);
        $loc="<strong>$loc</strong>";}return $loc;');
    $parms = create_function('$f','$params=array();if(isset($f["function"])){
        try{if(isset($f["class"])){
        $r=new ReflectionMethod($f["class"]."::".$f["function"]);}
        else{$r=new ReflectionFunction($f["function"]);}
        return $r->getParameters();}catch(Exception $e){}}
        return $params;');
    $src2lines = create_function('$file','$src=nl2br(highlight_file($file,TRUE));
        return explode("<br />",$src);');
    $clean = create_function('$line','return trim(strip_tags($line));');
    $desc = get_class($e)." making ".$_SERVER['REQUEST_METHOD']." request to ".
        $_SERVER['REQUEST_URI'];
    $out = '
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
  "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
  <meta http-equiv="content-type" content="text/html; charset=utf-8" />
  <meta name="robots" content="NONE,NOARCHIVE" />
     <title>'.$o($desc).'</title>
  <style type="text/css">
    html * { padding:0; margin:0; }
    body * { padding:10px 20px; }
    body * * { padding:0; }
    body { font:small sans-serif; background: #70DBFF; }
    body>div { border-bottom:1px solid #ddd; }
    h1 { font-weight:normal; }
    h2 { margin-bottom:.8em; }
    h2 span { font-size:80%; color:#666; font-weight:normal; }
    h2 a { text-decoration:none; }
    h3 { margin:1em 0 .5em 0; }
    h4 { margin:0.5em 0 .5em 0; font-weight: normal; font-style: italic; }
    table { 
        border:1px solid #ccc; border-collapse: collapse; background:white; }
    tbody td, tbody th { vertical-align:top; padding:2px 3px; }
    thead th { 
        padding:1px 6px 1px 3px; background:#70FF94; text-align:left; 
        font-weight:bold; font-size:11px; border:1px solid #ddd; }
    tbody th { text-align:right; color:#666; padding-right:.5em; }
    table.vars { margin:5px 0 2px 40px; }
    table.vars td, table.req td { font-family:monospace; }
    table td { background: #70FFDB; }
    table td.code { width:95%;}
    table td.code div { overflow:hidden; }
    table.source th { color:#666; }
    table.source td { 
        font-family:monospace; white-space:pre; border-bottom:1px solid #eee; }
    ul.traceback { list-style-type:none; }
    ul.traceback li.frame { margin-bottom:1em; }
    div.context { margin:5px 0 2px 40px; background-color:#70FFDB; }
    div.context ol { 
        padding-left:30px; margin:0 10px; list-style-position: inside; }
    div.context ol li { 
        font-family:monospace; white-space:pre; color:#666; cursor:pointer; }
    div.context li.current-line { color:black; background-color:#70FF94; }
    div.commands { margin-left: 40px; }
    div.commands a { color:black; text-decoration:none; }
    p.headers { background: #70FFDB; font-family:monospace; }
    #summary { background: #00B8F5; }
    #summary h2 { font-weight: normal; color: #666; }
    #traceback { background:#eee; }
    #request { background:#f6f6f6; }
    #response { background:#eee; }
    #summary table { border:none; background:#00B8F5; }
    #summary td  { background:#00B8F5; }
    .switch { text-decoration: none; }
    .whitemsg { background:white; color:black;}
  </style>
  <script type="text/javascript">
  //<!--
    function getElementsByClassName(oElm, strTagName, strClassName){
        // Written by Jonathan Snook, http://www.snook.ca/jon; 
        // Add-ons by Robert Nyman, http://www.robertnyman.com
        var arrElements = (strTagName == "*" && document.all)? document.all :
        oElm.getElementsByTagName(strTagName);
        var arrReturnElements = new Array();
        strClassName = strClassName.replace(/\-/g, "\\-");
        var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
        var oElement;
        for(var i=0; i<arrElements.length; i++){
            oElement = arrElements[i];
            if(oRegExp.test(oElement.className)){
                arrReturnElements.push(oElement);
            }
        }
        return (arrReturnElements)
    }
    function hideAll(elems) {
      for (var e = 0; e < elems.length; e++) {
        elems[e].style.display = \'none\';
      }
    }
    function toggle() {
      for (var i = 0; i < arguments.length; i++) {
        var e = document.getElementById(arguments[i]);
        if (e) {
          e.style.display = e.style.display == \'none\' ? \'block\' : \'none\';
        }
      }
      return false;
    }
    function varToggle(link, id, prefix) {
      toggle(prefix + id);
      var s = link.getElementsByTagName(\'span\')[0];
      var uarr = String.fromCharCode(0x25b6);
      var darr = String.fromCharCode(0x25bc);
      s.innerHTML = s.innerHTML == uarr ? darr : uarr;
      return false;
    }
    function sectionToggle(span, section) {
      toggle(section);
      var span = document.getElementById(span);
      var uarr = String.fromCharCode(0x25b6);
      var darr = String.fromCharCode(0x25bc);
      span.innerHTML = span.innerHTML == uarr ? darr : uarr;
      return false;
    }
    
    window.onload = function() {
      hideAll(getElementsByClassName(document, \'table\', \'vars\'));
      hideAll(getElementsByClassName(document, \'div\', \'context\'));
      hideAll(getElementsByClassName(document, \'ul\', \'traceback\'));
      hideAll(getElementsByClassName(document, \'div\', \'section\'));
    }
    //-->
  </script>
</head>
<body>

<div id="summary">
  <h1>'.$o($desc).'</h1>
  <h2>';
    if ($e->getCode()) { 
        $out .= $o($e->getCode()). ' : '; 
    }
    $out .= ' '.$o($e->getMessage()).'</h2>
  <table>
    <tr>
      <th>PHP</th>
      <td>'.$o($e->getFile()).', line '.$o($e->getLine()).'</td>
    </tr>
    <tr>
      <th>URI</th>
      <td>'.$o($_SERVER['REQUEST_METHOD'].' '.
        $_SERVER['REQUEST_URI']).'</td>
    </tr>
  </table>
</div>

<div id="traceback">
  <h2>Stacktrace
    <a href=\'#\' onclick="return sectionToggle(\'tb_switch\',\'tb_list\')">
    <span id="tb_switch">▶</span></a></h2>
  <ul id="tb_list" class="traceback">';
    $frames = $e->getTrace(); 
    foreach ($frames as $frame_id=>$frame) { 
        if (!isset($frame['file'])) {
            $frame['file'] = 'No File';
            $frame['line'] = '0';
        }
        $out .= '<li class="frame">'.$sub($frame).'
        ['.$o($frame['file']).', line '.$o($frame['line']).']';
        if (isset($frame['args']) && count($frame['args']) > 0) {
            $params = $parms($frame);
            $out .= '
          <div class="commands">
              <a href=\'#\' onclick="return varToggle(this, \''.
              $o($frame_id).'\',\'v\')"><span>▶</span> Args</a>
          </div>
          <table class="vars" id="v'.$o($frame_id).'">
            <thead>
              <tr>
                <th>Arg</th>
                <th>Name</th>
                <th>Value</th>
              </tr>
            </thead>
            <tbody>';
            foreach ($frame['args'] as $k => $v) {
                $name = (isset($params[$k]) and isset($params[$k]->name)) ? '$'.$params[$k]->name : '?';
                $out .= '
                <tr>
                  <td>'.$o($k).'</td>
                  <td>'.$o($name).'</td>
                  <td class="code">
                    <pre>'.Pluf_esc(print_r($v, true)).'</pre>
                  </td>
                  </tr>'; 
            }
            $out .= '</tbody></table>';
        } 
        if (is_readable($frame['file']) ) { 
            $out .= '
        <div class="commands">
            <a href=\'#\' onclick="return varToggle(this, \''
                .$o($frame_id).'\',\'c\')"><span>▶</span> Src</a>
        </div>
        <div class="context" id="c'.$o($frame_id).'">';
            $lines = $src2lines($frame['file']);
            $start = $frame['line'] < 5 ?
                0 : $frame['line'] -5; $end = $start + 10;
            $out2 = '';
            foreach ( $lines as $k => $line ) {
                if ( $k > $end ) { break; }
                $line = trim(strip_tags($line));
                if ( $k < $start && isset($frames[$frame_id+1]["function"])
                     && preg_match('/function( )*'.preg_quote($frames[$frame_id+1]["function"]).'/',
                                   $line) ) {
                    $start = $k;
                }
                if ( $k >= $start ) {
                    if ( $k != $frame['line'] ) {
                $out2 .= '<li><code>'.$clean($line).'</code></li>'."\n"; }
              else {
                $out2 .= '<li class="current-line"><code>'.
                  $clean($line).'</code></li>'."\n"; }
            }
          }
            $out .= "<ol start=\"$start\">\n".$out2. "</ol>\n";
            $out .= '</div>';
        } else { 
            $out .= '<div class="commands">No src available</div>';
        } 
        $out .= '</li>';
    } // End of foreach $frames
    $out .= '
  </ul>
  
</div>

<div id="request">
  <h2>Request
    <a href=\'#\' onclick="return sectionToggle(\'req_switch\',\'req_list\')">
    <span id="req_switch">▶</span></a></h2>
  <div id="req_list" class="section">';
    if ( function_exists('apache_request_headers') ) {
        $out .= '<h3>Request <span>(raw)</span></h3>';
        $req_headers = apache_request_headers();
        $out .= '<h4>HEADERS</h4>';
        if ( count($req_headers) > 0 ) {
            $out .= '<p class="headers">';
            foreach ($req_headers as $req_h_name => $req_h_val) {
                $out .= $o($req_h_name.': '.$req_h_val);
                $out .=  '<br>';
            }
            $out .= '</p>';
        } else { 
            $out .= '<p>No headers.</p>';
        } 
        $req_body = file_get_contents('php://input');
        if ( strlen( $req_body ) > 0 ) {
            $out .='
      <h4>Body</h4>
      <p class="req" style="padding-bottom: 2em"><code>
       '.$o($req_body).'
      </code></p>';
        } 
    } 
    $out .= '
    <h3>Request <span>(parsed)</span></h3>';
    $superglobals = array('$_GET','$_POST','$_COOKIE','$_SERVER','$_ENV');
    foreach ( $superglobals as $sglobal ) {
        $sfn = create_function('','return '.$sglobal.';');
        $out .= '<h4>'.$sglobal.'</h4>';
        if ( count($sfn()) > 0 ) {
            $out .= '
      <table class="req">
        <thead>
          <tr>
            <th>Variable</th>
            <th>Value</th>
          </tr>
        </thead>
        <tbody>';
            foreach ( $sfn() as $k => $v ) {
                $out .= '<tr>
              <td>'.$o($k).'</td>
              <td class="code">
                <div>'.$o(print_r($v,TRUE)).'</div>
                </td>
            </tr>';
            }
            $out .= '
        </tbody>
      </table>';
        } else { 
            $out .= '
      <p class="whitemsg">No data</p>';
        } 
    } 
    $out .= '
      
  </div>
</div>';
    if ( function_exists('headers_list') ) { 
        $out .= '
<div id="response">

  <h2>Response
    <a href=\'#\' onclick="return sectionToggle(\'resp_switch\',\'resp_list\')">
    <span id="resp_switch">▶</span></a></h2>
  
  <div id="resp_list" class="section">

    <h3>Headers</h3>';
        $resp_headers = headers_list();
        if (count($resp_headers) > 0) {
            $out .= '
    <p class="headers">';
            foreach ( $resp_headers as $resp_h ) {
                $out .= $o($resp_h);
                $out .= '<br>';
            }
            $out .= '    </p>';
        } else {
            $out .= '
      <p>No headers.</p>';
        } 
        $out .= '
</div>';
    } 
    $out .= '
</body>
</html>
';
    return $out;
}

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