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   1  <?php
   2  
   3  #-- libs
   4  if (!function_exists("gzeof")) {
   5     die("This tool requires the 'zlib' extension of PHP 3.x or higher. Switch your provider.");
   6  }
   7  include ("t_config.php");
   8  
   9  #-- config
  10  define("EWIKI_TRANSFER_IDF", "EWBF00000025");    // file magic
  11  
  12  #-- downloading
  13  if ($type = $_REQUEST["fetch"])  {
  14     $gzip = ($type == "dat.gz");
  15  
  16     $date = strftime("%Y-%m-%d", time());
  17     $title = EWIKI_NAME;
  18     header("Content-Type: application/octet-stream");
  19     header("Content-Disposition: attachment; filename=\"ewiki_transfer.$title.$date.$type\"");
  20     if ($gzip) {
  21        ob_start("ob_gzhandler");
  22     }
  23  
  24     echo(EWIKI_TRANSFER_IDF);
  25     $n=0;
  26  
  27     $result = ewiki_db::GETALL(array("id","version","flags"));
  28     while ($row = $result->get()) {
  29        $n++;
  30  
  31        $id = $row["id"];
  32        for ($v=$row["version"]; $v>0; $v--) {
  33  
  34           $row = ewiki_db::GET($id, $v);
  35  
  36           if ($_REQUEST["textonly"]
  37               && (EWIKI_DB_F_TEXT != ($row["flags"] & EWIKI_DB_F_TYPE)) )
  38           {
  39              continue;
  40           }
  41  
  42           if ($row && ($row = serialize($row))) {
  43               echo "\n" . strlen($row) . "\n" . $row;
  44           }
  45  
  46        }
  47        
  48        if ($gzip && !($n % 15)) {
  49           ob_flush();
  50        }
  51     }
  52  }
  53  
  54  #-- uploading
  55  elseif (!empty($_FILES["data"])) {
  56  
  57  #error_reporting(E_ALL);
  58     if ($i = gzopen($_FILES["data"]["tmp_name"], "rb")) {
  59        $feof = "gzeof";
  60        $fgets = "gzgets";
  61        $fread = "gzread";
  62     }
  63     elseif ($i = fopen($_FILES["data"]["tmp_name"], "rb")) {
  64        $feof = "feof";
  65        $fgets = "fgets";
  66        $fread = "fread";
  67     }
  68     else {
  69        die("could not open incoming file");
  70     }
  71  
  72     $n = 0;
  73  
  74     while ($i && !$eof($i)) {
  75  
  76        /*stripCRLF*/ $idf = $fgets($i, 4096);
  77        if ($n==0) {
  78           $idf = trim($idf);
  79           if ($idf != EWIKI_TRANSFER_IDF) {
  80              die("This is not an ewiki transfer binary. (wrong magic code 0x".bin2hex($idf).")");
  81           }
  82        }
  83  
  84        $count = $fgets($i, 4096);
  85        if (($count === false) || (($count = trim($count)) <= 0)) {
  86  
  87           if ($feof($i)) {
  88              $fclose($i);
  89              die("<br><b>finished reading</b> $n entries");
  90           }
  91           else {
  92              die("<br><b>file broken</b> (zero count block) after $n entries");
  93           }
  94        }
  95  
  96        $row = $fread($i, $count);
  97        $row = unserialize($row);
  98  
  99        if (ewiki_db::WRITE($row)) {
 100           echo $row["id"] .".". $row["version"] . " &nbsp;\n";
 101        }
 102  
 103        $n++;
 104     }
 105  
 106  }
 107  
 108  #-- activation form
 109  else {
 110     ?>
 111  <html>
 112  <head>
 113   <title>make binary backup of whole database</title>
 114   <link rel="stylesheet" type="text/css" href="t_config.css">
 115  </head>
 116  <body bgcolor="#ffffff" text="#000000">
 117  
 118       <h1>database dump</h1>
 119       If you cannot make use of the <b>ewikictl</b> cmdline utility, and need
 120       a way to transfer the whole database from one server to another, you
 121       can make a downloadable binary dump using this util.
 122       <br><br>
 123  
 124       <h4>generate dump</h4>
 125       <form action="<?php echo $_SERVER["REQUEST_URI"]; ?>" method="GET" enctype="application/x-www-form-urlencoded">
 126         <select name="textonly">
 127          <option value="0">full dump (+ binary entries)</option>
 128          <option value="1" selected>retrieve only text pages</option>
 129         </select>
 130         <select name="fetch">
 131          <option value="dat.gz">.dat.gz</option>
 132          <option value="dat">.dat</option>
 133         </select>
 134         <br> <input type="submit" value="save">
 135       </form>
 136       <br>
 137  
 138       <h4>reinsert dump</h4>
 139       <form action="<?php echo $_SERVER["REQUEST_URI"]; ?>" method="POST" enctype="multipart/form-data">
 140         <input type="file" name="data">
 141         <br> <input type="submit" value="upload">
 142       </form>
 143       <br>
 144  
 145  </body></html>
 146     <?php
 147  }
 148  
 149  ?>
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