Merge pull request #2770 from baconwaifu/postgres

Adding standalone files for postgres

DynmapCore/src/main/java/org/dynmap/storage/postgresql/PostgreSQLMapStorage.java

@@ -456,7 +456,7 @@ public class PostgreSQLMapStorage extends MapStorage {
                 doUpdate(c, "CREATE TABLE " + tableFaces + " (PlayerName VARCHAR(64) NOT NULL, TypeID INT NOT NULL, Image BYTEA, PRIMARY KEY(PlayerName, TypeID))");
                 doUpdate(c, "CREATE TABLE " + tableMarkerIcons + " (IconName VARCHAR(128) PRIMARY KEY NOT NULL, Image BYTEA)");
                 doUpdate(c, "CREATE TABLE " + tableMarkerFiles + " (FileName VARCHAR(128) PRIMARY KEY NOT NULL, Content BYTEA)");
-                doUpdate(c, "CREATE TABLE " + tableStandaloneFiles + " (FileName VARCHAR(128) NOT NULL, ServerID BIGINT NOT NULL DEFAULT 0, Content TEXT, PRIMARY KEY (FileName, ServerID))");
+                doUpdate(c, "CREATE TABLE " + tableStandaloneFiles + " (FileName VARCHAR(128) NOT NULL, ServerID BIGINT NOT NULL DEFAULT 0, Content BYTEA, PRIMARY KEY (FileName, ServerID))");
                 doUpdate(c, "CREATE TABLE " + tableSchemaVersion + " (level INT PRIMARY KEY NOT NULL)");
                 doUpdate(c, "INSERT INTO " + tableSchemaVersion + " (level) VALUES (3)");
             } catch (SQLException x) {
@@ -488,7 +488,7 @@ public class PostgreSQLMapStorage extends MapStorage {
                 c = getConnection();
                 doUpdate(c, "DELETE FROM " + tableStandaloneFiles + ";");
                 doUpdate(c, "ALTER TABLE " + tableStandaloneFiles + " DROP COLUMN Content;");
-                doUpdate(c, "ALTER TABLE " + tableStandaloneFiles + " ADD COLUMN Content TEXT;");
+                doUpdate(c, "ALTER TABLE " + tableStandaloneFiles + " ADD COLUMN Content BYTEA;");
                 doUpdate(c, "UPDATE " + tableSchemaVersion + " SET level=3 WHERE level = 2;");
             } catch (SQLException x) {
                 Log.severe("Error creating tables - " + x.getMessage());

DynmapCore/src/main/resources/extracted/web/standalone/PostgreSQL_access.php

@@ -0,0 +1,9 @@
+<?php
+require_once('PostgreSQL_funcs.php');
+
+if ($loginenabled) {
+    $rslt = getStandaloneFile('dynmap_access.php');
+	var_dump($rslt);
+	eval($rslt);
+}
+?>

DynmapCore/src/main/resources/extracted/web/standalone/PostgreSQL_configuration.php

@@ -0,0 +1,78 @@
+<?php
+ob_start();
+require_once('PostgreSQL_funcs.php');
+include('PostgreSQL_config.php');
+include('PostgreSQL_access.php');
+ob_end_clean();
+
+session_start();
+
+if(isset($_SESSION['userid'])) {
+  $userid = $_SESSION['userid'];
+}
+else {
+  $userid = '-guest-';
+}
+
+$loggedin = false;
+if(strcmp($userid, '-guest-')) {
+  $loggedin = true;
+}
+
+$content = getStandaloneFile('dynmap_config.json');
+
+header('Content-type: application/json; charset=utf-8');
+
+$json = json_decode($content);
+
+if (!$loginenabled) {
+	echo $content;
+}
+else if($json->loginrequired && !$loggedin) {
+    echo "{ \"error\": \"login-required\" }";
+}
+else {
+	$uid = '[' . strtolower($userid) . ']';
+	$json->loggedin = $loggedin;
+	$wcnt = count($json->worlds);
+	$newworlds = array();
+	for($i = 0; $i < $wcnt; $i++) {
+		$w = $json->worlds[$i];
+		if($w->protected) {
+		    $ss = stristr($worldaccess[$w->name], $uid);
+			if($ss !== false) {
+				$newworlds[] = $w;
+			}
+			else {
+				$w = null;
+			}
+		}
+		else {
+			$newworlds[] = $w;
+		}
+		if($w != null) {
+			$mcnt = count($w->maps);
+			$newmaps = array();
+			for($j = 0; $j < $mcnt; $j++) {
+				$m = $w->maps[$j];
+				if($m->protected) {
+				    $ss = stristr($mapaccess[$w->name . '.' . $m->prefix], $uid);
+					if($ss !== false) {
+						$newmaps[] = $m;
+					}
+				}
+				else {
+					$newmaps[] = $m;
+				}
+			}
+			$w->maps = $newmaps;		
+		}
+	}
+	$json->worlds = $newworlds;
+	
+	echo json_encode($json);
+}
+cleanupDb();
+ 
+?>
+

DynmapCore/src/main/resources/extracted/web/standalone/PostgreSQL_funcs.php

@@ -0,0 +1,116 @@
+<?php
+
+function cleanupDb() {
+   if (isset($db)) {
+      $db->close();
+      $db = NULL;
+   }
+}
+
+function abortDb($errormsg) {
+   header('HTTP/1.0 500 Error');
+   echo "<h1>500 Error</h1>";
+   echo $errormsg;
+   cleanupDb();
+   exit;
+}
+
+function initDbIfNeeded() {
+   global $db, $dbhost, $dbuserid, $dbpassword, $dbname, $dbport;
+   
+   $pos = strpos($dbname, '?');
+
+   if ($pos) {
+      $dbname = substr($dbname, 0, $pos);
+   }
+   
+   if (!$db) {
+      $db = new PDO("pgsql:host=$dbhost;port=$dbport;dbname=$dbname", $dbuserid , $dbpassword, array(PDO::ATTR_PERSISTENT => true));
+      $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+      if (!$db) {
+         abortDb("Error opening database");
+	  }
+   }
+}
+
+
+function getStandaloneFileByServerId($fname, $sid) {
+   global $db, $dbprefix;
+   
+   initDbIfNeeded();
+   $stmt = $db->prepare('SELECT Content from ' . $dbprefix . 'StandaloneFiles WHERE FileName=:fname AND ServerID=:sid');
+   $stmt->bindParam(':fname', $fname, PDO::PARAM_STR);
+   $stmt->bindParam(':sid', $sid, PDO::PARAM_INT);
+   $res = $stmt->execute();
+   $content = $stmt->fetch(PDO::FETCH_BOTH);
+   if ($res && $content) {
+        $rslt = stream_get_contents($content[0]); //stupid streams...
+   }
+   else {
+        $rslt = NULL;
+   }
+   $stmt->closeCursor();
+   return $rslt;
+}
+
+function getStandaloneFile($fname) {
+   global $serverid;
+   
+   if (!isset($serverid)) {
+      $serverid = 0;
+      if(isset($_REQUEST['serverid'])) {
+         $serverid = $_REQUEST['serverid'];
+      }
+   }
+   return getStandaloneFileByServerId($fname, $serverid);
+}
+
+function updateStandaloneFileByServerId($fname, $sid, $content) {
+   global $db, $dbprefix;
+   
+   initDbIfNeeded();
+   $stmt = $db->prepare('UPDATE ' . $dbprefix . 'StandaloneFiles SET Content=? WHERE FileName=? AND ServerID=?');
+   $stmt->bind_param('ssi', $content, $fname, $sid);
+   $res = $stmt->execute();
+   $stmt->close();
+   if (!$res) {
+      $res = insertStandaloneFileByServerId($fname, $sid, $content);
+   }
+   return $res;
+}
+
+function updateStandaloneFile($fname, $content) {
+   global $serverid;
+   
+   if (!isset($serverid)) {
+      $serverid = 0;
+      if(isset($_REQUEST['serverid'])) {
+         $serverid = $_REQUEST['serverid'];
+      }
+   }
+   return updateStandaloneFileByServerId($fname, $serverid, $content);
+}
+
+function insertStandaloneFileByServerId($fname, $sid, $content) {
+   global $db, $dbprefix;
+   
+   initDbIfNeeded();
+   $stmt = $db->prepare('INSERT INTO ' . $dbprefix . 'StandaloneFiles (Content,FileName,ServerID) VALUES (?,?,?);');
+   $res = $stmt->execute(array($content, $fname, $sid));
+   $stmt->close();
+   return $res;
+}
+
+function insertStandaloneFile($fname, $content) {
+   global $serverid;
+   
+   if (!isset($serverid)) {
+      $serverid = 0;
+      if(isset($_REQUEST['serverid'])) {
+         $serverid = $_REQUEST['serverid'];
+      }
+   }
+   return insertStandaloneFileByServerId($fname, $serverid, $content);
+}
+
+?>

DynmapCore/src/main/resources/extracted/web/standalone/PostgreSQL_getlogin.php

@@ -0,0 +1,8 @@
+<?php
+require_once('PostgreSQL_funcs.php');
+
+if ($loginenabled) {
+    $rslt = getStandaloneFile("dynmap_login.php");
+	eval($rslt);
+}
+?>

DynmapCore/src/main/resources/extracted/web/standalone/PostgreSQL_login.php

@@ -0,0 +1,75 @@
+<?php
+ob_start();
+require_once('PostgreSQL_funcs.php');
+include('PostgreSQL_config.php');
+include('PostgreSQL_getlogin.php');
+ob_end_clean();
+
+session_start();
+
+if(isset($_POST['j_username'])) {
+  $userid = $_POST['j_username'];
+}
+else {
+  $userid = '-guest-';
+}
+$good = false;
+
+if(strcmp($userid, '-guest-')) {
+  if(isset($_POST['j_password'])) {
+    $password = $_POST['j_password'];
+  }
+  else {
+    $password = '';
+  }
+  $ctx = hash_init('sha256');
+  hash_update($ctx, $pwdsalt);
+  hash_update($ctx, $password);
+  $hash = hash_final($ctx);
+  $useridlc = strtolower($userid);
+  if (strcasecmp($hash, $pwdhash[$useridlc]) == 0) {
+     $_SESSION['userid'] = $userid;
+     $good = true; 
+  }
+  else {
+     $_SESSION['userid'] = '-guest-';
+  }
+}
+else {
+  $_SESSION['userid'] = '-guest-';
+  $good = true;
+}
+$content = getStandaloneFile('dynmap_reg.php');
+
+/* Prune pending registrations, if needed */
+$lines = explode('\n', $content);
+$newlines[] = array();
+if(!empty($lines)) {
+	$cnt = count($lines) - 1;
+	$changed = false;
+	for($i=1; $i < $cnt; $i++) {
+		list($uid, $pc, $hsh) = explode('=', rtrim($lines[$i]));
+		if($uid == $useridlc) continue;
+		if(array_key_exists($uid, $pendingreg)) {
+			$newlines[] = $uid . '=' . $pc . '=' . $hsh;
+		}
+		else {
+			$changed = true;
+		}
+	}
+	if($changed) {
+        updateStandaloneFile('dynmap_reg.php', implode("\n", $newlines));
+	}
+}
+
+if($good) {
+   echo "{ \"result\": \"success\" }"; 
+}
+else {
+   echo "{ \"result\": \"loginfailed\" }"; 
+}
+
+cleanupDb();
+ 
+?>
+

DynmapCore/src/main/resources/extracted/web/standalone/PostgreSQL_markers.php

@@ -0,0 +1,110 @@
+<?php
+ob_start();
+require_once('PostgreSQL_funcs.php');
+include('PostgreSQL_config.php');
+include('PostgreSQL_access.php');
+ob_end_clean();
+
+session_start();
+
+if(isset($_SESSION['userid'])) {
+  $userid = $_SESSION['userid'];
+}
+else {
+  $userid = '-guest-';
+}
+
+$loggedin = false;
+if(strcmp($userid, '-guest-')) {
+  $loggedin = true;
+}
+
+$path = $_REQUEST['marker'];
+if ((!isset($path)) || strstr($path, "..")) {
+    header('HTTP/1.0 500 Error');
+    echo "<h1>500 Error</h1>";
+    echo "Bad marker: " . $path;
+    exit();
+}
+
+$parts = explode("/", $path);
+
+if(($parts[0] != "faces") && ($parts[0] != "_markers_")) {
+    header('HTTP/1.0 500 Error');
+    echo "<h1>500 Error</h1>";
+    echo "Bad marker: " . $path;
+    exit();
+}
+
+initDbIfNeeded();
+
+if ($parts[0] == "faces") {
+	if (count($parts) != 3) {
+	    header('HTTP/1.0 500 Error');
+    	echo "<h1>500 Error</h1>";
+    	echo "Bad face: " . $path;
+    	cleanupDb();
+    	exit();
+	}
+	$ft = 0;
+	if ($parts[1] == "8x8") {
+		$ft = 0;
+	}
+	else if ($parts[1] == '16x16') {
+	    $ft = 1;
+   	}
+   	else if ($parts[1] == '32x32') {
+   	    $ft = 2;
+	}
+	else if ($parts[1] == 'body') {
+		$ft = 3;
+	}
+	$pn = explode(".", $parts[2]);
+	$stmt = $db->prepare('SELECT Image from ' . $dbprefix . 'Faces WHERE PlayerName=? AND TypeID=?');
+	$res = $stmt->execute(array($pn[0], $ft));
+	$timage = $stmt->fetch();
+	if ($res && $timage) {
+          header('Content-Type: image/png');
+	  echo stream_get_contents($timage[0]);
+	}
+	else {
+		header('Location: ../images/blank.png');
+	}
+}
+else { // _markers_
+	$in = explode(".", $parts[1]);
+	$name = implode(".", array_slice($in, 0, count($in) - 1));
+	$ext = $in[count($in) - 1];
+	if (($ext == "json") && (strpos($name, "marker_") == 0)) {
+		$world = substr($name, 7);
+		$stmt = $db->prepare('SELECT Content from ' . $dbprefix . 'MarkerFiles WHERE FileName=?');
+		$res = $stmt->execute(array($world));
+		$timage = $stmt->fetch();
+  		header('Content-Type: application/json');
+		if ($res && $timage) {
+			echo stream_get_contents($timage[0]); //PDO returns arrays, even for single colums, and bytea is returned as stream.
+		}
+		else {
+			echo "{ }";
+		}
+	}
+	else {
+		$stmt = $db->prepare('SELECT Image from ' . $dbprefix . 'MarkerIcons WHERE IconName=?');
+		$res = $stmt->execute(array($name));
+        $timage = $stmt->fetch();
+		if ($res && $timage) {
+      		header('Content-Type: image/png');
+			echo stream_get_contents($timage[0]);
+		}
+		else {
+			header('Location: ../images/blank.png');
+		}
+	}
+}
+
+$stmt->closeCursor();
+
+cleanupDb();
+
+exit;
+?>

DynmapCore/src/main/resources/extracted/web/standalone/PostgreSQL_sendmessage.php

@@ -0,0 +1,75 @@
+<?php
+ob_start();
+require_once('PostgreSQL_funcs.php');
+include('PostgreSQL_config.php');
+ob_end_clean();
+
+session_start();
+
+$content = getStandaloneFile('dynmap_config.json');
+if (isset($content)) {
+   $config = json_decode($content, true);
+   $msginterval = $config['webchat-interval'];
+}
+else {
+   $msginterval = 2000;
+}
+
+if(isset($_SESSION['lastchat']))
+    $lastchat = $_SESSION['lastchat'];
+else
+    $lastchat = 0;
+
+if($_SERVER['REQUEST_METHOD'] == 'POST' && $lastchat < time())
+{
+	$micro = microtime(true);
+	$timestamp = round($micro*1000.0);
+	
+	$data = json_decode(trim(file_get_contents('php://input')));
+	$data->timestamp = $timestamp;
+	$data->ip = $_SERVER['REMOTE_ADDR'];
+	if(isset($_SESSION['userid'])) {
+		$uid = $_SESSION['userid'];
+		if(strcmp($uid, '-guest-')) {
+		   $data->userid = $uid;
+		}
+	}
+	if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
+		$data->ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
+	$content = getStandaloneFile('dynmap_webchat.json');
+	$gotold = false;
+	if (isset($content)) {
+		$old_messages = json_decode($content, true);
+		$gotold = true;
+	}
+	
+	if(!empty($old_messages))
+	{
+		foreach($old_messages as $message)
+		{
+			if(($timestamp - $config['updaterate'] - 10000) < $message['timestamp'])
+				$new_messages[] = $message;
+		}
+	}
+	$new_messages[] = $data;
+
+	if ($gotold) {
+	    updateStandaloneFile('dynmap_webchat.json', json_encode($new_messages));
+	}
+	else {
+	    insertStandaloneFile('dynmap_webchat.json', json_encode($new_messages));
+	}
+	
+	$_SESSION['lastchat'] = time()+$msginterval;
+	echo "{ \"error\" : \"none\" }";
+}
+elseif($_SERVER['REQUEST_METHOD'] == 'POST' && $lastchat > time())
+{
+	header('HTTP/1.1 403 Forbidden');
+}
+else {
+	echo "{ \"error\" : \"none\" }";
+}
+cleanupDb();
+
+?>

DynmapCore/src/main/resources/extracted/web/standalone/PostgreSQL_tiles.php

@@ -0,0 +1,114 @@
+<?php
+ob_start();
+require_once('PostgreSQL_funcs.php');
+include('PostgreSQL_config.php');
+include('PostgreSQL_access.php');
+ob_end_clean();
+
+session_start();
+
+if(isset($_SESSION['userid'])) {
+  $userid = $_SESSION['userid'];
+}
+else {
+  $userid = '-guest-';
+}
+
+$loggedin = false;
+if(strcmp($userid, '-guest-')) {
+  $loggedin = true;
+}
+
+$path = $_REQUEST['tile'];
+if ((!isset($path)) || strstr($path, "..")) {
+    header('HTTP/1.0 500 Error');
+    echo "<h1>500 Error</h1>";
+    echo "Bad tile: " . $path;
+    exit();
+}
+
+$parts = explode("/", $path);
+
+if (count($parts) != 4) {
+   header('Location: ../images/blank.png');
+   cleanupDb();
+   exit;
+}
+ 
+$uid = '[' . strtolower($userid) . ']';
+
+$world = $parts[0];
+
+if(isset($worldaccess[$world])) {
+    $ss = stristr($worldaccess[$world], $uid);
+	if($ss === false) {
+           header('Location: ../images/blank.png');
+           cleanupDb();
+           exit;
+	}
+}
+$variant='STANDARD';
+
+  $prefix = $parts[1];
+  $plen = strlen($prefix);
+  if(($plen > 4) && (substr($prefix, $plen - 4) === "_day")) {
+	$prefix = substr($prefix, 0, $plen - 4);
+        $variant = 'DAY';
+  }
+  $mapid = $world . "." . $prefix;
+  if(isset($mapaccess[$mapid])) {
+    $ss = stristr($mapaccess[$mapid], $uid);
+	if($ss === false) {
+           header('Location: ../images/blank.png');
+           cleanupDb();
+           exit;
+	}
+  }
+
+$fparts = explode("_", $parts[3]);
+if (count($fparts) == 3) { // zoom_x_y
+   $zoom = strlen($fparts[0]);
+   $x = intval($fparts[1]);
+   $y = intval($fparts[2]);
+}
+else if (count($fparts) == 2) { // x_y
+   $zoom = 0;
+   $x = intval($fparts[0]);
+   $y = intval($fparts[1]);
+}
+else {
+   header('Location: ../images/blank.png');
+   cleanupDb();
+   exit;
+}
+initDbIfNeeded();
+
+$stmt = $db->prepare('SELECT t.Image,t.Format,t.HashCode,t.LastUpdate FROM ' . $dbprefix . 'Maps m JOIN ' . $dbprefix . 'Tiles t ON m.ID=t.MapID WHERE m.WorldID=? AND m.MapID=? AND m.Variant=? AND t.x=? AND t.y=? and t.zoom=?');
+$stmt->bindParam(1,$world, PDO::PARAM_STR);
+$stmt->bindParam(2,$prefix, PDO::PARAM_STR);
+$stmt->bindParam(3,$variant, PDO::PARAM_STR);
+$stmt->bindParam(4,$x, PDO::PARAM_INT);
+$stmt->bindParam(5,$y, PDO::PARAM_INT);
+$stmt->bindParam(6,$zoom, PDO::PARAM_INT);
+$res = $stmt->execute();
+list($timage, $format, $thash, $tlast) = $stmt->fetch();
+if ($res && $timage) {
+   if ($format == 0) {
+      header('Content-Type: image/png');
+   }
+   else {
+      header('Content-Type: image/jpeg');
+   }
+   header('ETag: \'' . $thash . '\'');
+   header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $tlast/1000) . ' GMT'); 
+   echo stream_get_contents($timage);
+}
+else {
+   header('Location: ../images/blank.png');
+}
+
+$stmt->closeCursor();
+cleanupDb();
+
+exit;
+?>

DynmapCore/src/main/resources/extracted/web/standalone/PostgreSQL_update.php

@@ -0,0 +1,107 @@
+<?php
+ob_start();
+require_once('PostgreSQL_funcs.php');
+include('PostgreSQL_config.php');
+include('PostgreSQL_access.php');
+ob_end_clean();
+
+$world = $_REQUEST['world'];
+
+session_start();
+
+if(isset($_SESSION['userid'])) {
+  $userid = $_SESSION['userid'];
+}
+else {
+  $userid = '-guest-';
+}
+
+$loggedin = false;
+if(strcmp($userid, '-guest-')) {
+  $loggedin = true;
+}
+
+header('Content-type: application/json; charset=utf-8');
+
+if(strpos($world, '/') || strpos($world, '\\') || empty($world)) {
+    echo "{ \"error\": \"invalid-world\" }";
+    return;
+}
+
+if ($loginenabled)
+	$fname = 'updates_' . $world . '.php';
+else
+	$fname = 'updates_' . $world . '.json';
+
+$useridlc = strtolower($userid);
+$uid = '[' . $useridlc . ']';
+
+if(isset($worldaccess[$world])) {
+    $ss = stristr($worldaccess[$world], $uid);
+	if($ss === false) {
+	    echo "{ \"error\": \"access-denied\" }";
+		return;
+	}
+}
+
+$serverid = 0;
+if(isset($_REQUEST['serverid'])) {
+  $serverid = $_REQUEST['serverid'];
+}
+
+$content = getStandaloneFile('dynmap_' . $world . '.json');
+if (!isset($content)) {
+    header('HTTP/1.0 503 Database Unavailable');
+    echo "<h1>503 Database Unavailable</h1>";
+    echo 'Error reading database - ' . $fname . ' #' . $serverid;
+    cleanupDb();
+    exit;
+}
+
+
+if (!$loginenabled) {
+	echo $content;
+}
+else if(isset($json->loginrequired) && $json->loginrequired && !$loggedin) {
+    echo "{ \"error\": \"login-required\" }";
+}
+else {
+	$json = json_decode($content);
+	$json->loggedin = $loggedin;
+	if (isset($json->protected) && $json->protected) {
+	    $ss = stristr($seeallmarkers, $uid);
+		if($ss === false) {
+			if(isset($playervisible[$useridlc])) {
+				$plist = $playervisible[$useridlc];
+				$pcnt = count($json->players);
+				for($i = 0; $i < $pcnt; $i++) {
+					$p = $json->players[$i];
+					if(!stristr($plist, '[' . $p->account . ']')) { 
+						$p->world = "-some-other-bogus-world-";
+						$p->x = 0.0;
+						$p->y = 64.0;
+						$p->z = 0.0;
+					}
+				}
+			}
+			else {
+				$pcnt = count($json->players);
+				for($i = 0; $i < $pcnt; $i++) {
+					$p = $json->players[$i];
+					if(strcasecmp($userid, $p->account) != 0) {
+						$p->world = "-some-other-bogus-world-";
+						$p->x = 0.0;
+						$p->y = 64.0;
+						$p->z = 0.0;
+					}
+				}
+			}
+		}
+	}
+	echo json_encode($json);
+}
+cleanupDb();
+
+ 
+?>
+

README.md

@@ -17,5 +17,12 @@ The following target platforms are supported:
 - Forge v1.11.2 - via Dynmap-<version>-forge-1.11.2.jar mod
 - Forge v1.12.2 - via Dynmap-<version>-forge-1.12.2.jar mod
 
+# Data Storage
+Dynmap supports the following storage backends:
+- Flat files: The default for a new installation
+- SQLite
+- MySQL
+- PostgreSQL: EXPERIMENTAL
+
 # Where to go for questions and discussions
 I've just created a Reddit for the Dynmap family of mods/plugins - please give it a try - https://www.reddit.com/r/Dynmap/