#!/usr/pkg/bin/php
<?php
// A simple guestbook for Motsgnir gopher server (php)
// tfurrows@gmail.com, 4/20/16

//$thisRoot = str_replace("/sdf/ftp/pub","",__DIR__);  
//$siteUrl = $_SERVER['SERVER_NAME'];
//$SERVER_PORT = "70";

$serverUrl = $_SERVER['SERVER_NAME'];
//$serverUrl = "gopher.jozhaus.com";
$guestBookFile = "/sdf/ftp/pub/users/tfurrows/cgi-bin/guestBook.dat";

$terminate = "\tx\tx\t0\r\n";
$ascLine = str_repeat("-",50);


echo "iJozhaus Guest Book".$terminate;
echo "7Sign the guest book\t/users/tfurrows/cgi-bin/guestBook.php\t$serverUrl\t70".$terminate;

echo "i".$terminate;
//echo "i".$ascLine.$terminate;
//echo "i".$terminate;

// Read all of the current guestbook entries
$handle = fopen($guestBookFile, "r");
if($handle) {
	
	while (($line = fgets($handle)) !== false) {
		$lineCount+=1;
		$bookLine[] = $line;
	}

	// No one has signed yet
	if(!isset($bookLine)) {
		echo "iNo one has signed the guest book yet. Be the first!".$terminate;
	}
	
	fclose($handle);
} else {
	// error opening the file.
	echo "iThere was an error, the guest book file does not exist.".$terminate;
} 



// Process guest book signatures
if(($inputString = getenv("QUERY_STRING"))>"") {
	// Build the signature / message to save in the file
	$remoteIp = getenv("REMOTE_ADDR");

	$message[] = $ascLine;
	$message[] = $inputString;
	//$message[] = "   From: ".$remoteIp.", ".date("D M j G:i:s T Y");
	$message[] = "   ".date("D M j G:i:s T Y");
	$message[] = $ascLine;

	// Write to the guestbook, prepend	
	file_put_contents($guestBookFile,implode("\n",$message));

	// If there were previous entries, we'll add them after this new one
	if(isset($bookLine)) {
		file_put_contents($guestBookFile,implode($bookLine),FILE_APPEND | LOCK_EX);
	}
}

// Display guest book contents

if(isset($message)) {
	foreach($message as $bookLineText) {
		echo "i".$bookLineText.$terminate;
	}
}

echo "i".$terminate;

$count=0;
if(isset($bookLine)) {
	foreach($bookLine as $bookLineText) {
		$count++;
		// 5 lines in the text file per entry, use modulus to insert a gopher menu item ever n items (x5)
		// so scrolling works for long guestbooks
		if($count%15==0) {
			echo "1Scroll Down\t/guestBook.php\t$serverUrl\t70".$terminate;
		}
		echo "i".rtrim($bookLineText).$terminate;
	}
}

// Link to the source
//echo "i".$ascLine.$terminate;
echo "0View the PHP source for the guestbook\t/guestBook.txt\tgopher.jozhaus.com\t70".$terminate;

include("/var/gopher/footer.php");
?>