Did a lot of work on the imagecache, and the filehandler. Now both are functional, and used indirectly throught index.php, thus requiering login for access.

5 files changed, 163 insertions, 60 deletions

diff --git a/forum/utils/file.php b/forum/utils/file.php
new file mode 100644
index 0000000..50993b5
--- /dev/null
+++ b/forum/utils/file.php
@@ -0,0 +1,31 @@
+<?php
+ 
+include_once("config.php");
+include_once($UTIL_DIR . "/mimetypes.php");
+include_once($UTIL_DIR . "/files.php");
+
+function getFile($fid)
+{
+	global $DATA_DIR, $PERMSTORE, $MIME_TYPES;
+	$files = new Files($DATA_DIR . "/files.xml");
+	$file = $files->getFile($fid);
+	
+	$filename = $PERMSTORE . "/" . $file->fid;
+	
+	$download = false;
+	foreach($MIME_TYPES as $m) {
+		if($m->name == $file->mimetype) $download = !$m->show;
+	}
+	
+	//header ("Cache-Control: must-revalidate, post-check=0, pre-check=0");
+	header('Content-Description: File Transfer');
+	header('Content-Type: ' . $file->mimetype);
+	header('Content-Length: ' . filesize($filename));
+	
+	if($download) header('Content-Disposition: attachment; filename=' . basename($file->name));
+	else header('Content-Disposition: inline; filename=' . basename($file->name));
+	
+	readfile($filename); 
+}
+
+?>
\ No newline at end of file
diff --git a/forum/utils/filehandler.php b/forum/utils/filehandler.php
index 231ddd6..9cacb1c 100644
--- a/forum/utils/filehandler.php
+++ b/forum/utils/filehandler.php
@@ -19,7 +19,7 @@ $files->show();
 
 
 ?>
-<form enctype="multipart/form-data" action="?mode=files&amp;task=upload" method="post">
+<form enctype="multipart/form-data" action="?mode=filehandler&amp;task=upload" method="post">
   <p>
 	  File: <input name="userfile" type="file">
   </p>
diff --git a/forum/utils/files.php b/forum/utils/files.php
index d714ba2..6cae023 100644
--- a/forum/utils/files.php
+++ b/forum/utils/files.php
@@ -10,15 +10,14 @@ class File {
 
 	public function link()
 	{
-		global $PERMSTORE;
-		return "file.php?fid=" . $this->fid;
+		return "?mode=file&amp;fid=" . $this->fid;
 	}
 
 	public function show()
 	{
 		global $PERMSTORE;
 		echo "<div class=\"file\">\n";
-		echo "  <a class=\"delete\" href=\"?mode=files&amp;task=delete&amp;fid=" . $this->fid . "\">Delete</a>\n";
+		echo "  <a class=\"delete\" href=\"?mode=filehandler&amp;task=delete&amp;fid=" . $this->fid . "\">Delete</a>\n";
 		echo "  <div class=\"filename\">Filename: <a href=\"" . $this->link() . "\">" . $this->name  . "</a>(" . $this->mimetype. ")</div>\n";
 		echo "  <div class=\"filesize\">Size: " . ceil(filesize($PERMSTORE . "/" . $this->fid) / 1024) . "kb</div>\n";
 		echo "</div>\n";
diff --git a/forum/utils/imagecache.php b/forum/utils/imagecache.php
new file mode 100644
index 0000000..aae5e66
--- /dev/null
+++ b/forum/utils/imagecache.php
@@ -0,0 +1,92 @@
+<?php
+
+include_once("config.php");
+include_once($UTIL_DIR . "/ping.php");
+
+
+function rescale($image) {
+
+	$maxwidth = 300;
+	$maxheight = 240;
+
+	$width = imagesx($image);
+	$height = imagesy($image);
+
+	$scale = 1;
+	if($width > $maxwidth) $scale = $width / $maxwidth;
+	if($height / $scale > $maxheight) $scale = $height / $maxheight;
+
+	$image_p = imagecreatetruecolor($width / $scale, $height / $scale);
+	imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width / $scale, $height / $scale, $width, $height);
+
+	return $image_p;
+}
+
+function errorImage($filename)
+{
+	/*
+	 header('Content-Description: File Transfer');
+	 header('Content-Type: image/jpeg');
+	 header('Content-Length: ' . filesize($fullfilename));
+	 header('Content-Disposition: inline; filename=' . basename($filename));
+	 readfile($fullfilename); 
+	*/
+	echo "Error fetching image: " . $filename;
+	die(404);
+}
+
+function getCachedImage($filename)
+{
+	global $IMAGECACHE;
+	$fullfilename = $IMAGECACHE . "/" . urlencode($filename);
+
+	if(!file_exists($fullfilename)) {
+
+		$url = parse_url($filename);
+		$filetype = strrchr($url["path"], '.');
+		
+		if( true || ping($url["hostname"], 1000) != -1) {
+			
+			error_reporting(E_ERROR | E_PARSE); 
+
+			switch(tolower($filetype)) {
+			case ".jpeg":
+			case ".jpg":
+				$image = imagecreatefromjpeg(urldecode($filename));
+				if(!$image) errorImage($filename);
+				$image = rescale($image);
+				imagejpeg($image, $fullfilename, 90);
+				break;
+
+			case ".gif":
+				$image = imagecreatefromgif(urldecode($filename));
+				if(!$image) errorImage($filename);
+				$image = rescale($image);
+				imagegif($image, $fullfilename);
+				break;
+
+			case ".png":
+				$image = imagecreatefrompng(urldecode($filename));
+				if(!$image) errorImage($filename);
+				$image = rescale($image);
+				imagepng($image, $fullfilename);
+				break;
+
+			default:
+				if(!$image) errorImage("Unknown image type " . $filetype);
+				break;
+			}
+			
+			error_reporting(E_ALL ^ E_NOTICE);
+
+		}
+	}
+
+	header('Content-Description: File Transfer');
+	header('Content-Type: image/jpeg');
+	header('Content-Length: ' . filesize($fullfilename));
+	header('Content-Disposition: inline; filename=' . basename($filename));
+	readfile($fullfilename); 
+}
+
+?>
\ No newline at end of file
diff --git a/forum/utils/parser.php b/forum/utils/parser.php
index e857c7e..b5a80b7 100644
--- a/forum/utils/parser.php
+++ b/forum/utils/parser.php
@@ -7,6 +7,7 @@ include_once($UTIL_DIR . "/smileys.php");
 // strtr
 // ereg_replace
 // str_replace
+// error_reporting
 //
 
 function parse($input, $indent = "")
@@ -28,23 +29,32 @@ function parse($input, $indent = "")
 	  $output = $smile;
 	}
 
-  // Insert images
-  $output = preg_replace("/http:\/\/(.*\.jpg|\.gif|\.png|\.jpeg)/s", "IMAGE$1EGAMI", $output);
+  // Find a unique symbols for image start and end markers
+  $imgstartsymbol = "A";
+  $imgstartmarker = $imgstartsymbol;
+  while(strpos($output, $imgstartmarker)) $imgstartmarker .= $imgstartsymbol;
+
+  $imgendsymbol = "B";
+  $imgendmarker = $imgendsymbol;
+  while(strpos($output, $imgendmarker)) $imgendmarker .= $imgendsymbol;
+
+  // Find and mark image URLs (so that they don't get converted into normal <a/> links)
+  $output = preg_replace("/http:\/\/(.*\.jpg|\.gif|\.png|\.jpeg)/", $imgstartmarker."$1".$imgendmarker, $output);
 
 	// Replace URLs with <a></a> tags
   $output = preg_replace("/http:\/\/(.*?)([\n ])/s", "<a href=\"http://$1\">$1</a>$2", $output);
 
-  // Finish inserting images
-  $output = preg_replace("/IMAGE(.*?)EGAMI/s", "<img alt=\"$1\" src=\"imagecache.php?filename=$1\"/>", $output);
+  // Convert marked images to img tags and links
+  $output = preg_replace("/".$imgstartmarker."(.*?)".$imgendmarker."/s", "<a href=\"http://$1\"><img alt=\"$1\" src=\"?mode=imagecache&amp;uri=http://$1\"/></a>", $output);
 
 	// Replace [quote title=...]...[/quote]
-        $urls = "";
+  $urls = "";
 	while(($start = strpos($output, "[quote"))) {
-                $pre = substr($output, 0, $start);
-                $url = substr($output, $start);
-                $end = strpos($url, "[/quote]") + strlen("[/quote]");
-                $url = substr($url, 0, $end - strlen("[/quote]"));
-                $post = substr($output, $start + $end + strlen("[/quote]") );
+    $pre = substr($output, 0, $start);
+    $url = substr($output, $start);
+    $end = strpos($url, "[/quote]") + strlen("[/quote]");
+    $url = substr($url, 0, $end - strlen("[/quote]"));
+    $post = substr($output, $start + $end + strlen("[/quote]") );
 
 		$header = substr($url, 0, strpos($url, "]") + 1);
 		$body = substr($url, strpos($url, "]") + 1);
@@ -54,17 +64,17 @@ function parse($input, $indent = "")
 		$header = str_replace(array("[quote"), "<div class=\"quote\">", $header);
 		$header = str_replace(array("]"), "  </div>", $header);
 
-                $urls .= $pre . $header . $body . "</div>";
-                $output = $post;
+    $urls .= $pre . $header . $body . "</div>";
+    $output = $post;
 	}
-        $urls .= $output;
-        $output = $urls;
+  $urls .= $output;
+  $output = $urls;
 	
 	//
 	// Hack to make quotes two levels deep.
 	//
 	// Replace [quote title=...]...[/quote]
-        $urls = "";
+  $urls = "";
 	while(($start = strpos($output, "[quote"))) {
                 $pre = substr($output, 0, $start);
                 $url = substr($output, $start);
@@ -83,48 +93,19 @@ function parse($input, $indent = "")
                 $urls .= $pre . $header . $body . "</div>";
                 $output = $post;
 	}
-        $urls .= $output;
-        $output = $urls;
-
-        $search = array(
-                        '/\[b\](.*?)\[\/b\]/is',
-                        '/\[i\](.*?)\[\/i\]/is',
-                        '/\[u\](.*?)\[\/u\]/is',
-                        '/\[img\](.*?)\[\/img\]/is',
-                        '/\[url\](.*?)\[\/url\]/is',
-                        '/\[url\=(.*?)\](.*?)\[\/url\]/is'
-                        );
-
-        $replace = array(
-                         '<strong>$1</strong>',
-                         '<em>$1</em>',
-                         '<u>$1</u>',
-                         '<img src="$1" />',
-                         '<a href="$1">$1</a>',
-                         '<a href="$1">$2</a>'
-                         );
-
-        $output = preg_replace ($search, $replace, $output);
-        /*
-       // <b></b>
-        $b = array("[b]", "[B]");
-        $b = str_replace($b, "<strong>", $output);
-        $output = $b;
-
-        $b = array("[/b]", "[/B]");
-        $b = str_replace($b, "</strong>", $output);
-        $output = $b;
-
-        // <i></i>
-        $i = array("[i]", "[I]");
-        $i = str_replace($i, "<em>", $output);
-        $output = $i;
-
-        $i = array("[/i]", "[/i]");
-        $i = str_replace($i, "</em>", $output);
-        $output = $i;
-        */
+  $urls .= $output;
+  $output = $urls;
+
+  $search = array('/\[b\](.*?)\[\/b\]/is',
+                  '/\[i\](.*?)\[\/i\]/is',
+                  '/\[u\](.*?)\[\/u\]/is');
+
+  $replace = array('<strong>$1</strong>',
+                   '<em>$1</em>',
+                   '<u>$1</u>');
 
+  $output = preg_replace ($search, $replace, $output);
+  
 	// Replace newlines with <br/> tags
 	$nls = array("\n");
 	$nls = str_replace($nls, "<br/>\n", $output);