Ok, alla fine ho utilizzato questo codice in php
Funziona tutto benissimo. Lo spazio è su aruba. L'unico problema è che non ho capito dove vanno a finire i due file "/temp/minichat.latest" "/temp/minichat.archive". Questa cartella temporanea non la vedo da nessuna parte. In teoria dovrei metterli in una mia cartella dandogli come permessi in scrittura il 777 (che però credo non si possa su aruba). A me andrebbe bene anche tenerli in questa cartella "temp", ma vorrei poterli modificare. Ad esempio non posso cancallare i post che avevo usato di prova...
Qualcuno sa aiutarmi?
Si è capito il problema?
Codice PHP:
<?
$latest = $DOCUMENT_ROOT . "/temp/minichat.latest";
$archive = $DOCUMENT_ROOT . "/temp/minichat.archive";
$size = 20;
$nick_size = 20;
$message_size = 256;
$max_word_size = 20;
?><body text="#CA0000" link="#CA0000" vlink="#CA0000" alink="#CA0000">
<table width="113" align="center" border="0">
<tr>
<td width="107">
<form name="minichat_form" method="POST" action="<? echo $_SERVER['file:///C|/DOCUME~1/Enzo/IMPOST~1/Temp/Directory temporanea 1 per minichat2[1].zip/PHP_SELF']; ?>">
<font face="arial,sans-serif" size="2">
<input type="hidden" name="minichat_md5" value="<? if (isset($minichat_message)) {echo md5($minichat_message);} ?>">
Name:
<input type="text" name="minichat_nick" maxlength="<? echo $nick_size; ?>" size="15" style="font-family: Verdana, Arial, Helvetica, Sans-serif; font-size: 10px">
Message:
<textarea name="minichat_message" cols="18" rows="4" style="font-family: Verdana, Arial, Helvetica, Sans-serif; font-size: 10px"></textarea>
<input type="submit" name="minichat_submit" value="Submit">
</font>
</form>
</p>
<font face="arial,sans-serif" size="1">
<?
// Check to see if the user is trying to post something.
if (isset($minichat_md5) && isset($minichat_nick) && isset($minichat_message)) {
// Replace any new line stuff with a space.
$nick = strtr($nick, "\r\n", " ");
$message = strtr($message, "\r\n", " ");
// Trim leading and trailing whitespace where necessary and remove slashes.
$nick = trim(stripslashes($minichat_nick));
$message = trim(stripslashes($minichat_message));
// Only proceed if the md5 hash of message is not repeated.
if (md5($message) != $minichat_md5) {
// Only proceed if the user actually filled in both fields.
if (strlen($nick) > 0 && strlen($message) > 0) {
// If the fields are too long, then chop them to the limits.
if (strlen($nick) > $nick_size) {
$nick = substr($nick, 0, $nick_size);
}
if (strlen($message) > $message_size) {
$message = substr($message, 0, $message_size);
}
// Remove new line characters from the input.
$nick = str_replace("\n", " ", $nick);
$message = str_replace("\n", " ", $message);
// Enforce the maximum word size by breaking up $message into lines.
$message = preg_replace("/([^\s]{20})/", "$1\n", $message);
// Now we can encode the nick and message into HTML.
$nick = htmlentities($nick);
$message = htmlentities($message);
// Now replace the new line characters in $message.
$message = str_replace("\n", "
", $message);
// The IP address of the poster, web cache or whatever.
$ip = $_SERVER['REMOTE_ADDR'];
$time = date("j M Y - G:i:s");
// Check to see if the 'latest' and 'archive' files exist and can be written to.
if (!is_writable($latest) || !is_writable($archive)) {
// Touch both files.
touch($latest);
touch($archive);
if (!is_writable($latest) || !is_writable($archive)) {
exit("$latest or $archive is not writable. Please check your permissions and try again.");
}
}
// Read every line of the 'latest' file into an array.
$lines = file($latest);
$bottom_index = count($lines);
// Note that each entry takes up 4 lines.
$line_ip = "\n";
$line_nick = "<font color=\"#9999ff\">Posted by $nick\n";
$line_time = "on $time</font>
\n";
$line_message = "$message
\n";
$entry = $line_ip . $line_nick . $line_time. $line_message;
$already_posted = 0;
for ($i = 3; $i < $bottom_index; $i += 4) {
if ($lines[$i] == $line_message) {
$already_posted = 1;
break;
}
}
if ($already_posted == 0) {
// Now rebuild the 'latest' file.
// Start by entering the new entry at the top.
$out = fopen($latest, "w");
fwrite($out, $entry);
// Then write all other entries except the oldest.
if ($bottom_index >= $size * 4) {
$bottom_index = $size * 4 - 4;
}
for ($i = 0; $i < $bottom_index; $i++) {
fwrite($out, $lines[$i]);
}
fclose($out);
// Also append the entry to the archive file.
$out = fopen($archive, "a");
fwrite($out, $entry);
fclose($out);
}
else {
// This avoided a "probably accidental" repost.
}
}
else {
echo "<font color=\"red\">You must fill in both fields</font>
";
}
}
else {
// This avoided a deliberate repost, maybe we should say something?
}
}
// include the latest comments on the page.
if (file_exists($latest)) {
include($latest);
}
?>
</font>
</p>
</td>
</tr>
</table>
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