From f6d90d8d3504fc1ba428da81e77c4484c4646f30 Mon Sep 17 00:00:00 2001
From: deva <deva>
Date: Fri, 10 Oct 2008 20:26:15 +0000
Subject: Did some work on the forum parser.

---
 forum/htdocs/imagecache.php | 62 +++++++++++++++++++++++++++++++++++++++++++
 forum/utils/parser.php      | 64 ++++++++++++++++++++++++++-------------------
 forum/utils/smileys.php     | 16 ++++++------
 3 files changed, 107 insertions(+), 35 deletions(-)
 create mode 100644 forum/htdocs/imagecache.php

diff --git a/forum/htdocs/imagecache.php b/forum/htdocs/imagecache.php
new file mode 100644
index 0000000..f23a51d
--- /dev/null
+++ b/forum/htdocs/imagecache.php
@@ -0,0 +1,62 @@
+<?php
+
+include_once("config.php");
+include_once($UTIL_DIR . "/ping.php");
+
+
+function rescale($image) {
+
+	$maxwidth = 300;
+	$maxheight = 240;
+
+	$width = imagesx($image);
+	$height = imagesy($image);
+
+	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 $image_p;
+}
+
+
+$fullfilename = $IMAGECACHE . "/" . urlencode($filename);
+
+if(!file_exists($fullfilename)) {
+
+	$url = parse_url($filename);
+	$filetype = strrchr($url["path"], '.');
+
+	if( true || ping($url["hostname"], 1000) != -1) {
+
+		if(strcasecmp($filetype, ".jpeg") == 0 || strcasecmp($filetype, ".jpg") == 0) {
+			$image = imagecreatefromjpeg(urldecode($filename));
+			if(!$image) die(404);
+			$image = rescale($image);
+			imagejpeg($image, $fullfilename, 90);
+		} else if(strcasecmp($filetype, ".gif") == 0) {
+			$image = imagecreatefromgif(urldecode($filename));
+			if(!$image) die(404);
+			$image = rescale($image);
+			imagegif($image, $fullfilename);
+		} else if(strcasecmp($filetype, ".png") == 0) {
+			$image = imagecreatefrompng(urldecode($filename));
+			if(!$image) die(404);
+			$image = rescale($image);
+			imagepng($image, $fullfilename);
+		} else {
+			echo "<p>Unknown image format " . $filetype . "</p>";
+		}
+
+	}
+}
+
+header('Content-Description: File Transfer');
+header('Content-Type: image/jpeg');
+header('Content-Length: ' . filesize($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 3c33a9b..e857c7e 100644
--- a/forum/utils/parser.php
+++ b/forum/utils/parser.php
@@ -1,7 +1,14 @@
-<?php
+<?php /* -*- Mode: php; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 include_once($UTIL_DIR . "/convert.php");
 include_once($UTIL_DIR . "/smileys.php");
 
+//
+// preg_replace
+// strtr
+// ereg_replace
+// str_replace
+//
+
 function parse($input, $indent = "")
 {
   global $testing;
@@ -21,32 +28,14 @@ function parse($input, $indent = "")
 	  $output = $smile;
 	}
 
+  // Insert images
+  $output = preg_replace("/http:\/\/(.*\.jpg|\.gif|\.png|\.jpeg)/s", "IMAGE$1EGAMI", $output);
+
 	// Replace URLs with <a></a> tags
-	$urls = "";
-	while(($start = strpos($output, "http://"))) {
-		$pre = substr($output, 0, $start);
-		$url = substr($output, $start);
-		$end1 = strpos($url, " ");
-		$end2 = strpos($url, "\n");
-		if($end1 == 0) {
-			if($end2 == 0) $end = strlen($url);
-			else $end = $end2;
-		} else {
-			if($end2 == 0) $end = $end1;
-			else if($end1 < $end2) $end = $end1;
-			else $end = $end2;
-		}
-		$url = substr($url, 0, $end);
-		$post = substr($output, $start + $end);
-		if(strstr($url, ".jpg") || strstr($url, ".gif") || strstr($url, ".png")) {
-		  $urls .= $pre . "<a href=\"" . $url . "\"><img alt=\"" . $url . "\" style=\"border: solid red 1px;\" src=\"imagecache.php?filename=" . urlencode($url) . "\"/></a>";
-		} else {
-		  $urls .= $pre . "<a href=\"" . $url . "\">" . $url . "</a>";
-		}
-		$output = $post;
-	}
-	$urls .= $output;
-	$output = $urls;
+  $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);
 
 	// Replace [quote title=...]...[/quote]
         $urls = "";
@@ -97,7 +86,27 @@ function parse($input, $indent = "")
         $urls .= $output;
         $output = $urls;
 
-        // <b></b>
+        $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 = $b;
@@ -114,6 +123,7 @@ function parse($input, $indent = "")
         $i = array("[/i]", "[/i]");
         $i = str_replace($i, "</em>", $output);
         $output = $i;
+        */
 
 	// Replace newlines with <br/> tags
 	$nls = array("\n");
diff --git a/forum/utils/smileys.php b/forum/utils/smileys.php
index e0a2d1a..59a0a41 100644
--- a/forum/utils/smileys.php
+++ b/forum/utils/smileys.php
@@ -1,10 +1,10 @@
-<?php
+<?php /* -*- Mode: php; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 
 $smileys = array(
-		 array(array(":-)", ":)"), "smile.gif"),
-		 array(array(":-D", ":D"), "biggrinn.gif"),
+                 array(array(":-)", ":)"), "smile.gif"),
+                 array(array(":-D", ":D"), "biggrinn.gif"),
                  array(array("X-D", "x-D"), "grinn.gif"),
-		 array(array(";-)", ";)"), "wink.gif"),
+                 array(array(";-)", ";)"), "wink.gif"),
                  array(array(";(", ";-("), "cry.gif"),
                  array(array(":(", ":-("), "mad.gif"),
                  array(array(":smoke:"), "smoke.gif"),
@@ -13,15 +13,15 @@ $smileys = array(
                  array(array(":butt:"), "butt.gif"),
                  array(array(":eek:"), "eek.gif"),
                  array(array(":razz:"), "razz.gif"),
-		 array(array(":roll:"), "roll.gif"),
+                 array(array(":roll:"), "roll.gif"),
                  array(array(":evil:"), "evil.gif"),
                  array(array(":lol:"), "lol.gif"),
                  array(array(":cool:"), "cool.gif"),
 //                 array(array(":thumbsup:"), "thumbsup.gif"),
-		 array(array(":-p", ":p", ":-P", ":P"), "tongue.png"),
+                 array(array(":-p", ":p", ":-P", ":P"), "tongue.png"),
                  array(array("(R)"), "redface.gif"),
-		 array(array("\\m/"), "headbanger.gif"),
-		 array(array("&gt;:O"), "growler.gif"),
+                 array(array("\\m/"), "headbanger.gif"),
+                 array(array("&gt;:O"), "growler.gif"),
                  array(array(":thumbsup:"), "thumbsup.gif"),
                  array(array(":thumbsdown:"), "thumbsdown.gif"),
                  array(array("=>", "->"), "arrow.gif"),
-- 
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