<?php
// WebSVN - Subversion repository viewing via the web using PHP
// Copyright (C) 2004-2006 Tim Armes
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// --
//
// diff_inc.php
//
// Diff to files

ini_set('include_path', $locwebsvnreal.'/lib/pear'.$config->pathSeparator.ini_get('include_path'));
@include_once('Text/Diff.php');
@include_once('Text/Diff/Renderer.php');
@include_once('Text/Diff/Renderer/unified.php');

$arrayBased = false;
$fileBased = false;

function nextLine(&$obj) {
  global $arrayBased, $fileBased;
  if ($arrayBased) return array_shift($obj);
  if ($fileBased) return fgets($obj);
  return '';
}

function endOfFile(&$obj) {
  global $arrayBased, $fileBased;
  if ($arrayBased) return count($obj) == 0;
  if ($fileBased) return feof($obj);
  return true;
}

function diff_result($all, $rep, $ent, $newtname, $oldtname, $obj) {
  $contentEncoding = $rep->getContentEncoding();

  $ofile = fopen($oldtname, 'r');
  $nfile = fopen($newtname, 'r');

  // Get the first real line
  $line = nextLine($obj);

  $index = 0;
  $listing = array();

  $curoline = 1;
  $curnline = 1;

  while (!endOfFile($obj)) {
    // Get the first line of this range
    $oline = 0;
    sscanf($line, "@@ -%d", $oline);
    $line = substr($line, strpos($line, "+"));
    $nline = 0;
    sscanf($line, "+%d", $nline);

    while ($curoline < $oline || $curnline < $nline) {
      if ($all) {
        $listing[$index]["rev1diffclass"] = "diff";
        $listing[$index]["rev2diffclass"] = "diff";
      }

      if ($curoline < $oline) {
        $nl = fgets($ofile);

        if ($all) {
          $line = rtrim($nl);
          if ($ent) $line = replaceEntities($line, $rep);
          else $line = toOutputEncoding($line, $contentEncoding);
          if (strip_tags($line) == '') $line = '&nbsp;';

          $listing[$index]["rev1line"] = hardspace($line);
        }

        $curoline++;
      } else if ($all) {
        $listing[$index]["rev1line"] = "&nbsp;";
      }

      if ($curnline < $nline) {
        $nl = fgets($nfile);

        if ($all) {
          $line = rtrim($nl);
          if ($ent) $line = replaceEntities($line, $rep);
          else $line = toOutputEncoding($line, $contentEncoding);
          if (strip_tags($line) == '') $line = '&nbsp;';

          $listing[$index]["rev2line"] = hardspace($line);
        }
        $curnline++;

      } else if ($all) {
        $listing[$index]["rev2line"] = "&nbsp;";
      }

      if ($all) {
        $listing[$index]["rev1lineno"] = 0;
        $listing[$index]["rev2lineno"] = 0;

        $index++;
      }
    }

    if (!$all) {
      // Output the line numbers
      $listing[$index]["rev1lineno"] = $oline;
      $listing[$index]["rev2lineno"] = $nline;
      $index++;
    }

    $fin = false;
    while (!endOfFile($obj) && !$fin) {
      $line = nextLine($obj);
      if ($line === false || $line === '' || strncmp($line, "@@", 2) == 0) {
        $fin = true;
      } else {
        $listing[$index]["rev1lineno"] = 0;
        $listing[$index]["rev2lineno"] = 0;

        $mod = $line{0};

        $line = rtrim(substr($line, 1));
        if ($ent) $line = replaceEntities($line, $rep);
        else $line = toOutputEncoding($line, $contentEncoding);
        if (strip_tags($line) == '') $line = '&nbsp;';
        $text = hardspace($line);
        $listing[$index]["rev1line"] = $text;

        switch ($mod) {
          case "-":
            $listing[$index]["rev1diffclass"] = "diffdeleted";
            $listing[$index]["rev2diffclass"] = "diff";

            $listing[$index]["rev1line"] = $text;
            $listing[$index]["rev2line"] = "&nbsp;";

            fgets($ofile);
            $curoline++;

            break;

          case "+":
            // Try to mark "changed" line sensibly
            if (!empty($listing[$index-1]) && empty($listing[$index-1]["rev1lineno"]) && @$listing[$index-1]["rev1diffclass"] == "diffdeleted" && @$listing[$index-1]["rev2diffclass"] == "diff") {
              $i = $index - 1;
              while (!empty($listing[$i-1]) && empty($listing[$i-1]["rev1lineno"]) && $listing[$i-1]["rev1diffclass"] == "diffdeleted" && $listing[$i-1]["rev2diffclass"] == "diff") {
                $i--;
              }

              $listing[$i]["rev1diffclass"] = "diffchanged";
              $listing[$i]["rev2diffclass"] = "diffchanged";
              $listing[$i]["rev2line"] = $text;

              fgets($nfile);
              $curnline++;

              // Don't increment the current index count
              $index--;

            } else {
              $listing[$index]["rev1diffclass"] = "diff";
              $listing[$index]["rev2diffclass"] = "diffadded";

              $listing[$index]["rev1line"] = "&nbsp;";
              $listing[$index]["rev2line"] = $text;

              fgets($nfile);
              $curnline++;
            }
            break;

          default:
            $listing[$index]["rev1diffclass"] = "diff";
            $listing[$index]["rev2diffclass"] = "diff";

            $nl = fgets($ofile);
            $line = rtrim($nl);
            if ($ent) $line = replaceEntities($line, $rep);
            else $line = toOutputEncoding($line, $contentEncoding);
            if (strip_tags($line) == '') $line = '&nbsp;';
            $listing[$index]["rev1line"] = hardspace($line);
            $curoline++;

            $nl = fgets($nfile);
            $line = rtrim($nl);
            if ($ent) $line = replaceEntities($line, $rep);
            else $line = toOutputEncoding($line, $contentEncoding);
            if (strip_tags($line) == '') $line = '&nbsp;';
            $listing[$index]["rev2line"] = hardspace($line);
            $curnline++;

            break;
        }
      }

      if (!$fin) {
        $index++;
      }
    }
  }

  // Output the rest of the files
  if ($all) {
    while (!feof($ofile) || !feof($nfile)) {
      $listing[$index]["rev1diffclass"] = "diff";
      $listing[$index]["rev2diffclass"] = "diff";

      $line = rtrim(fgets($ofile));
      if ($ent) $line = replaceEntities($line, $rep);
      else $line = toOutputEncoding($line, $contentEncoding);
      if (strip_tags($line) == '') $line = '&nbsp;';

      if (!feof($ofile)) {
        $listing[$index]["rev1line"] = hardspace($line);
      } else {
        $listing[$index]["rev1line"] = "&nbsp;";
      }

      $line = rtrim(fgets($nfile));
      if ($ent) $line = replaceEntities(rtrim(fgets($nfile)), $rep);
      else $line = toOutputEncoding($line, $contentEncoding);
      if (strip_tags($line) == '') $line = '&nbsp;';

      if (!feof($nfile)) {
        $listing[$index]["rev2line"] = hardspace($line);
      } else {
        $listing[$index]["rev2line"] = "&nbsp;";
      }

      $listing[$index]["rev1lineno"] = 0;
      $listing[$index]["rev2lineno"] = 0;

      $index++;
    }
  }

  fclose($ofile);
  fclose($nfile);

  return $listing;
}

function command_diff($all, $ignoreWhitespace, $rep, $ent, $newtname, $oldtname) {
  global $config, $lang, $arrayBased, $fileBased;

  $context = 5;

  if ($all) {
    // Setting the context to 0 makes diff generate the wrong line numbers!
    $context = 1;
  }

  // Open a pipe to the diff command with $context lines of context

  $cmd = quoteCommand($config->diff." -w -U $context \"$oldtname\" \"$newtname\"");

  $descriptorspec = array(0 => array('pipe', 'r'), 1 => array('pipe', 'w'), 2 => array('pipe', 'w'));

  $resource = proc_open($cmd, $descriptorspec, $pipes);
  $error = "";

  if (is_resource($resource)) {
    // We don't need to write
    fclose($pipes[0]);

    $diff = $pipes[1];

    // Ignore the 3 header lines
    $line = fgets($diff);
    $line = fgets($diff);

    $arrayBased = false;
    $fileBased = true;
    $listing = diff_result($all, $rep, $ent, $newtname, $oldtname, $diff);
    fclose($pipes[1]);

    while (!feof($pipes[2])) {
      $error .= fgets($pipes[2]);
    }

    $error = toOutputEncoding(trim($error));

    if (!empty($error)) $error = "<p>".$lang['BADCMD'].": <code>".$cmd."</code></p><p>".nl2br($error)."</p>";

    fclose($pipes[2]);

    proc_close($resource);

  } else {
    $error = "<p>".$lang['BADCMD'].": <code>".$cmd."</code></p>";
  }

  if (!empty($error)) {
    echo $error;

    if (is_resource($resource)) {
      fclose($pipes[0]);
      fclose($pipes[1]);
      fclose($pipes[2]);

      proc_close($resource);
    }
    exit;
  }

  return $listing;
}

function inline_diff($all, $ignoreWhitespace, $rep, $ent, $newtname, $oldtname) {
  global $arrayBased, $fileBased;

  $context = 5;
  if ($all) {
    // Setting the context to 0 makes diff generate the wrong line numbers!
    $context = 1;
  }

  // modify error reporting level to suppress deprecated/strict warning "Assigning the return value of new by reference"
  $bckLevel = error_reporting();
  $removeLevel = 0;
  if (version_compare(PHP_VERSION, '5.3.0alpha') !== -1) {
    $removeLevel = E_DEPRECATED;
  } else if (version_compare(PHP_VERSION, '5.0.0') !== -1) {
    $removeLevel = E_STRICT;
  }
  $modLevel = $bckLevel & (~$removeLevel);
  error_reporting($modLevel);

  // Create the diff class
  $fromLines = explode("\n", file_get_contents($oldtname));
  $toLines = explode("\n", file_get_contents($newtname));
  if (!$ignoreWhitespace) {
    $diff = new Text_Diff('auto', array($fromLines, $toLines));
  } else {
    $whitespaces = array(' ', "\t", "\n", "\r");
    $mappedFromLines = array();
    foreach ($fromLines as $line) {
      $mappedFromLines[] = str_replace($whitespaces, array(), $line);
    }
    $mappedToLines = array();
    foreach ($toLines as $line) {
      $mappedToLines[] = str_replace($whitespaces, array(), $line);
    }
    $diff = new Text_MappedDiff($fromLines, $toLines, $mappedFromLines, $mappedToLines);
  }
  $renderer = new Text_Diff_Renderer_unified(array('leading_context_lines' => $context, 'trailing_context_lines' => $context));
  $rendered = explode("\n", $renderer->render($diff));

  // restore previous error reporting level
  error_reporting($bckLevel);

  $arrayBased = true;
  $fileBased = false;
  $listing = diff_result($all, $rep, $ent, $newtname, $oldtname, $rendered);

  return $listing;
}

function do_diff($all, $ignoreWhitespace, $rep, $ent, $newtname, $oldtname) {
  if (class_exists('Text_Diff')) {
    return inline_diff($all, $ignoreWhitespace, $rep, $ent, $newtname, $oldtname);
  } else {
    return command_diff($all, $ignoreWhitespace, $rep, $ent, $newtname, $oldtname);
  }
}
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
   <head>
      <meta http-equiv="content-type" content="text/html;charset=UTF-8">
      <meta http-equiv="generator" content="WebSVN 2.2.1" /> <!-- leave this for stats -->
      <link rel="shortcut icon" type="image/x-icon" href="./templates/BlueGrey/favicon.ico" />
      <link type="text/css" href="./templates/BlueGrey/styles.css" rel="stylesheet" media="screen">
      <!--[if lt IE 7]>
      <script type="text/javascript" src="./templates/BlueGrey/png.js"></script>
      <![endif]-->
      <script type="text/javascript" src="./templates/BlueGrey/collapse.js"></script>
      <title>
         WebSVN
            - websvn
            - Blame
               - Rev 6
            - /include/diff_inc.php
      </title>

      <script type="text/javascript">
         function checkCB(chBox)
         {
            count = 0
            first = null
            f = chBox.form
            for (i = 0 ; i < f.elements.length ; i++)
            if (f.elements[i].type == 'checkbox' && f.elements[i].checked)
            {
               if (first == null && f.elements[i] != chBox)
                  first = f.elements[i]
               count += 1
            }
            
            if (count > 2) 
            {
               first.checked = false
               count -= 1
            }
         }
         
      </script>


</head>
<body>
	<table width="100%" border="0">
	  <tr>
		<td width="13%">&nbsp;</td>
		<td width="73%" align="center"><a href="http://www.jablonka.cz/"><img style="border: 0; width: 201px; height: 51px;" src="./templates/BlueGrey/logo.png" alt="jablonka.cz" /></a><a href="http://www.prosek.czf/"><img style="border: 0; width: 528px; height: 51px;" src="./templates/BlueGrey/squares.png" alt="prosek.czf" /></a></td>
		<td width="13%"><div style="float: right"><form action="?path=%2Finclude%2Fdiff_inc.php&amp;repname=websvn&amp;rev=6" method="post" id="langform"><select name="langchoice" onchange="javascript:this.form.submit();"><option value="ca">Catal&agrave;-Valenci&agrave; - Catalan</option><option value="cs">&#268;esky - Cesky</option><option value="da">Dansk - Dansk</option><option value="nl">Dutch - Dutch</option><option value="en" selected="selected">English - English</option><option value="fi">Finnish - Finnish</option><option value="fr">Fran&ccedil;ais - Francais</option><option value="de">Deutsch - German</option><option value="he-IL">&#1506;&#1489;&#1512;&#1497;&#1514; - Hebrew</option><option value="hu">Magyar - Hungarian</option><option value="id">Bahasa Indonesia - Indonesian</option><option value="it">Italiano - Italian</option><option value="ja">&#26085;&#26412;&#35486; - Japanese</option><option value="ko">&#54620;&#44397;&#50612; - Korean</option><option value="no">Norsk - Norwegian</option><option value="pl">Polski - Polish</option><option value="pt">Portugu&ecirc;s - Portuguese</option><option value="pt-BR">Portugu&ecirc;s - Brazilian Portuguese</option><option value="ru">&#1056;&#1091;&#1089;&#1089;&#1082;&#1080;&#1081; - Russian</option><option value="zh-CN">&#20013;&#25991; - Simplified Chinese</option><option value="sk">Sloven&#269;ina - Slovak</option><option value="sl">Sloven&#269;ina - Slovenian</option><option value="es">Espa&ntilde;ol - Spanish</option><option value="sv">Svenska - Swedish</option><option value="zh-TW">&#20013;&#25991; - Traditional Chinese</option><option value="tr">T&uuml;rk&ccedil;e - Turkish</option><option value="uz">O&euml;zbekcha - Uzbek</option></select><input type="submit" value="Go" /></form></div></td>
	  </tr>
	</table>
	<hr />
<table cellspacing="0" cellpadding="0" border="0" width="100%">
  <tr>
    <td align="left"><h1>websvn</h1></td>
    <td align="right"><b>Subversion Repositories:</b> <form action="form.php?" method="post" id="projectform"><select name="repname" onchange="javascript:this.form.submit();"><option value="banderdyn">banderdyn</option><option value="centos.prosek.czf">centos.prosek.czf</option><option value="crusader">crusader</option><option value="czf4bfu">czf4bfu</option><option value="czf4bfu.prosek.czf">czf4bfu.prosek.czf</option><option value="czfcentos">czfcentos</option><option value="czfgmap">czfgmap</option><option value="discover">discover</option><option value="fedora.prosek.czf">fedora.prosek.czf</option><option value="freenet-router">freenet-router</option><option value="ftth">ftth</option><option value="getonlineclouds">getonlineclouds</option><option value="hotsanic">hotsanic</option><option value="internet.prosek.czf">internet.prosek.czf</option><option value="is">is</option><option value="mapstats">mapstats</option><option value="meteolinger">meteolinger</option><option value="netmap">netmap</option><option value="qos">qos</option><option value="sedlo">sedlo</option><option value="sedlo.prosek.czf">sedlo.prosek.czf</option><option value="switches">switches</option><option value="vbtobb">vbtobb</option><option value="vlubnt">vlubnt</option><option value="weathermap">weathermap</option><option value="weatherstats">weatherstats</option><option value="websvn" selected="selected">websvn</option><option value="wifidashboard">wifidashboard</option><option value="wifimon">wifimon</option><option value="www.prosek.czf">www.prosek.czf</option><option value="xenstats">xenstats</option></select><input type="submit" value="Go" /><input type="hidden" name="selectproj" value="1" /><input type="hidden" name="op" value="form" /></form></td>
  </tr>
</table>

[<a href="listing.php?repname=websvn&amp;path=%2F&amp;rev=6">/</a>] [<a href="listing.php?repname=websvn&amp;path=%2Finclude%2F&amp;rev=6">include/</a>] [<b>diff_inc.php</b>] - Blame information for rev <b>6</b>
<p>&nbsp;</p>

<table cellpadding="2" cellspacing="0" width="100%" class="blameTbl">
	<thead>
		<tr>
			<th class="HdrClmn"><b>Line No.</b></th>
			<th class="HdrClmn"><b>Rev</b></th>
			<th class="HdrClmn"><b>Author</b></th>
			<th class="HdrClmnEnd"><b>Line</b></th>
		</tr>
	</thead>
	<tbody>
	</tbody>
</table> 


<script type='text/javascript'>
/* <![CDATA[ */
var rev = new Array();
var a = document.getElementsByTagName('a');
for (var i = 0; i < a.length; i++) {
  if (a[i].className == 'blame-revision') {
    var id = a[i].id;
    addEvent(a[i], 'mouseover', function() { mouseover(this) } );
    addEvent(a[i], 'mouseout', function() { mouseout(this) } );
  }
}

function mouseover(a) {
  // Find the revision by using the link
  var m = /rev=(\d+)/.exec(a.href);
  var r = m[1];

  div = document.createElement('div');
  div.className = 'blame-popup';
  div.innerHTML = rev[r];
  a.parentNode.appendChild(div);
}

function mouseout(a) {
  var div = a.parentNode.parentNode.getElementsByTagName('div');
  for (var i = 0; i < div.length; i++) {
    if (div[i].className = 'blame-popup') {
      div[i].parentNode.removeChild(div[i]);
    }
  }
}

function addEvent(obj, type, func) {
  if (obj.addEventListener) {
    obj.addEventListener(type, func, false);
    return true;
  } else if (obj.attachEvent) {
    return obj.attachEvent('on' + type, func);
  } else {
    return false;
  }
}
/* ]]> */
</script>

      <p><center><font size="-1"><i><b>Powered by <a href="http://www.websvn.info/">WebSVN</a> 2.2.1</b></i></font></center>
   </body>
</html>