nemunaire/paste-manager
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Add an encryption system

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This commit is contained in:
Némunaire 2012-01-30 16:04:43 +01:00
parent 93ea6f4151
commit dc91e89393
2 changed files with 72 additions and 10 deletions
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47
htdocs/index.php
View File

@ -19,8 +19,32 @@ foreach ($_GET as $k => $t)
{
$paste = new Paste($kout[1]);
if (!empty($kout[3]) && is_file(Paste::get_path($kout[3])))
$diff = new Paste($kout[3]);
if (!empty($paste->crypt) && empty($_POST["passwd"]))
{
?>
<div id="corps" style="text-align: center;">
<h1>
<?php echo htmlentities($paste->title); ?>
</h1>
<h2><?php echo $paste->get_subtitle(); ?></h2>
<div>
<form method="post" action="?<?php echo $kout[1]; ?>">
<fieldset class="paste_form">
<label for="title">Mot de passe :</label>
<input type="password" size="42" id="passwd" name="passwd">
<br><br>
<input type="submit" value="Voir le texte">
</fieldset>
</form>
<?php
}
else
{
if (!empty($paste->crypt))
$paste->crypt($_POST["passwd"]);
if (!empty($kout[3]) && is_file(Paste::get_path($kout[3])))
$diff = new Paste($kout[3]);
?>
<div id="corps" style="text-align: center;">
<h1>
@ -33,11 +57,12 @@ foreach ($_GET as $k => $t)
<?php echo $paste->get_ref(isset($diff)); ?>
</div>
<?php
if (isset($diff))
echo $paste->get_diff($diff);
else
echo $paste->get_code();
echo $paste->show_answers();
if (isset($diff))
echo $paste->get_diff($diff);
else
echo $paste->get_code();
echo $paste->show_answers();
}
?>
</div>
</div>
@ -67,9 +92,11 @@ else
<form method="post" action="save.php">
<fieldset class="paste_form">
<label for="title">Titre :</label>
<input type="text" size="50" id="title" name="title" value="<?php
<input type="text" size="42" id="title" name="title" value="<?php
echo $paste->title;
?>">
<label for="author">Auteur :</label>
<input type="text" maxlength="64" size="25" id="author" name="author">
<br><br>
<label for="content">Contenu :</label><br>
@ -77,8 +104,8 @@ else
echo htmlentities(utf8_decode($paste->content));
?></textarea><br><br>
<label for="author">Auteur :</label>
<input type="text" maxlength="64" size="35" id="author" name="author">
<label for="crypt" style="font-style: italic;">Mot de passe :</label>
<input type="text" maxlength="64" size="25" id="crypt" name="crypt">
<label for="lang">Langage :</label>
<select id="lang" name="lang">

35
paste.class.php
View File

@ -14,6 +14,7 @@ class Paste
var $ip;
var $ref = NULL;
var $hash;
var $crypt = NULL;
var $answers = array();
/**
@ -30,6 +31,29 @@ class Paste
}
}
static function cxor($msg, $cle)
{
$cle = hash("whirlpool", $cle);
$xor = NULL;
for($i = 0; $i < strlen($msg); $i++)
$xor .= substr($msg,$i,1) ^ substr($cle, $i % strlen($cle), 1);
return $xor;
}
function crypt($key)
{
if (!empty($this->crypt))
$this->crypt = Paste::cxor($this->crypt, $key);
else
$this->crypt = Paste::cxor(sha1($key), $key);
if ($this->crypt == sha1($key))
$this->content = Paste::cxor(base64_decode($this->content), $key);
else
$this->content = base64_encode(Paste::cxor($this->content, $key));
}
/**
* Load or reload the file and set attributes
*/
@ -58,6 +82,11 @@ class Paste
else
$this->hash = NULL;
if ($doc->getElementsByTagName("crypt")->length > 0)
$this->crypt = base64_decode($doc->getElementsByTagName("crypt")->item(0)->textContent);
else
$this->crypt = NULL;
for ($i = 0; $i < $doc->getElementsByTagName("answer")->length; $i++)
$this->answers[] = $doc->getElementsByTagName("answer")->item($i)->textContent;
@ -130,6 +159,9 @@ class Paste
$xml_paste->appendChild(
$xml->createElement("content", $this->content));
if (!empty($this->crypt))
$xml_paste->appendChild(
$xml->createElement("crypt", base64_encode($this->crypt)));
if (!empty($this->ref))
{
//Also indicate in the parent file
@ -179,6 +211,9 @@ class Paste
//TODO: allow uploading file
$this->content = $dict["content"];
if (!empty($dict["crypt"]))
$this->crypt($dict["crypt"]);
}
/**