Merge pull request #40 from sekjun9878/better-exceptions

Proposal for better Exceptions

SourceQuery/Exception.class.php

@@ -1,12 +0,0 @@
-<?php
-	/**
-	 * Class written by xPaw
-	 *
-	 * Website: http://xpaw.me
-	 * GitHub: https://github.com/xPaw/PHP-Source-Query-Class
-	 */
-	
-	class SourceQueryException extends Exception
-	{
-		// Exception thrown by SourceQuery class
-	}

SourceQuery/Exceptions.class.php

@@ -0,0 +1,43 @@
+<?php
+/**
+ * Class written by xPaw
+ *
+ * Website: http://xpaw.me
+ * GitHub: https://github.com/xPaw/PHP-Source-Query-Class
+ */
+
+namespace xPaw\SourceQuery\Exception;
+
+abstract class SourceQueryException extends \Exception
+{
+
+}
+
+class InvalidArgumentException extends SourceQueryException
+{
+	const TIMEOUT_NOT_INTEGER = 1;
+}
+
+class TimeoutException extends SourceQueryException
+{
+	const TIMEOUT_CONNECT = 1;
+}
+
+class InvalidPacketException extends SourceQueryException
+{
+	const PACKET_HEADER_MISMATCH = 1;
+	const BUFFER_NOT_EMPTY = 2;
+
+	const CHECKSUM_MISMATCH = 3;
+}
+
+class AuthenticationException extends SourceQueryException
+{
+	const BAD_PASSWORD = 1;
+	const BANNED = 2;
+}
+
+class SocketException extends SourceQueryException
+{
+	const COULD_NOT_CREATE_SOCKET = 1;
+}

SourceQuery/GoldSourceRcon.class.php

@@ -5,6 +5,8 @@
 	 * Website: http://xpaw.me
 	 * GitHub: https://github.com/xPaw/PHP-Source-Query-Class
 	 */
+
+	use xPaw\SourceQuery\Exception\AuthenticationException;
 	
 	class SourceQueryGoldSourceRcon
 	{
@@ -51,7 +53,11 @@
 			
 			return $Length === FWrite( $this->Socket->Socket, $Command, $Length );
 		}
-		
+
+		/**
+		 * @param int $Length
+		 * @throws AuthenticationException
+		 */
 		public function Read( $Length = 1400 )
 		{
 			// GoldSource RCON has same structure as Query
@@ -65,10 +71,13 @@
 			$Buffer  = $this->Buffer->Get( );
 			$Trimmed = Trim( $Buffer );
 			
-			if( $Trimmed === 'Bad rcon_password.'
-			||  $Trimmed === 'You have been banned from this server.' )
+			if($Trimmed === 'Bad rcon_password.')
+			{
+				throw new AuthenticationException($Trimmed, AuthenticationException::BAD_PASSWORD);
+			}
+			else if($Trimmed === 'You have been banned from this server.')
 			{
-				throw new SourceQueryException( $Trimmed );
+				throw new AuthenticationException($Trimmed, AuthenticationException::BANNED);
 			}
 			
 			$ReadMore = false;

SourceQuery/Socket.class.php

@@ -1,5 +1,8 @@
 <?php
-	/**
+use xPaw\SourceQuery\Exception\InvalidPacketException;
+use xPaw\SourceQuery\Exception\SocketException;
+
+/**
 	 * Class written by xPaw
 	 *
 	 * Website: http://xpaw.me
@@ -48,7 +51,7 @@
 			
 			if( $ErrNo || $this->Socket === false )
 			{
-				throw new Exception( 'Could not create socket: ' . $ErrStr );
+				throw new SocketException( 'Could not create socket: ' . $ErrStr, SocketException::COULD_NOT_CREATE_SOCKET);
 			}
 			
 			Stream_Set_Timeout( $this->Socket, $Timeout );
@@ -143,7 +146,7 @@
 					
 					if( CRC32( $Buffer ) !== $PacketChecksum )
 					{
-						throw new SourceQueryException( 'CRC32 checksum mismatch of uncompressed packet data.' );
+						throw new InvalidPacketException( 'CRC32 checksum mismatch of uncompressed packet data.', InvalidPacketException::CHECKSUM_MISMATCH);
 					}
 				}
 				
@@ -151,7 +154,7 @@
 			}
 			else
 			{
-				throw new SourceQueryException( 'Socket read: Raw packet header mismatch. (0x' . DecHex( $Header ) . ')' );
+				throw new InvalidPacketException( 'Socket read: Raw packet header mismatch. (0x' . DecHex( $Header ) . ')', InvalidPacketException::PACKET_HEADER_MISMATCH);
 			}
 		}
 		

SourceQuery/SourceQuery.class.php

@@ -14,12 +14,16 @@
 		define( '__DIR__', dirname( __FILE__ ) );
 	}
 	
-	require __DIR__ . '/Exception.class.php';
+	require __DIR__ . '/Exceptions.class.php';
 	require __DIR__ . '/Buffer.class.php';
 	require __DIR__ . '/Socket.class.php';
 	require __DIR__ . '/SourceRcon.class.php';
 	require __DIR__ . '/GoldSourceRcon.class.php';
-	
+
+	use xPaw\SourceQuery\Exception\InvalidArgumentException;
+	use xPaw\SourceQuery\Exception\TimeoutException;
+	use xPaw\SourceQuery\Exception\InvalidPacketException;
+
 	class SourceQuery
 	{
 		/**
@@ -121,7 +125,7 @@
 		{
 			$this->Disconnect( );
 		}
-		
+
 		/**
 		 * Opens connection to server
 		 *
@@ -130,8 +134,8 @@
 		 * @param int $Timeout Timeout period
 		 * @param int $Engine Engine the server runs on (goldsource, source)
 		 *
-		 * @throws SourceQueryException
-		 * @throws InvalidArgumentException If timeout is not an integer
+		 * @throws InvalidArgumentException
+		 * @throws TimeoutException
 		 */
 		public function Connect( $Ip, $Port, $Timeout = 3, $Engine = self :: SOURCE )
 		{
@@ -139,12 +143,12 @@
 			
 			if( !is_int( $Timeout ) || $Timeout < 0 )
 			{
-				throw new InvalidArgumentException( 'Timeout must be an integer.' );
+				throw new InvalidArgumentException("Timeout must be an integer.", InvalidArgumentException::TIMEOUT_NOT_INTEGER);
 			}
 			
 			if( !$this->Socket->Open( $Ip, (int)$Port, $Timeout, (int)$Engine ) )
 			{
-				throw new SourceQueryException( 'Can\'t connect to the server.' );
+				throw new TimeoutException("Could not connect to server.", TimeoutException::TIMEOUT_CONNECT);
 			}
 			
 			$this->Connected = true;
@@ -208,7 +212,7 @@
 		/**
 		 * Get server information
 		 *
-		 * @throws SourceQueryException
+		 * @throws InvalidPacketException
 		 *
 		 * @return bool|array Returns array with information on success, false on failure
 		 */
@@ -275,7 +279,7 @@
 			
 			if( $Type !== self :: S2A_INFO )
 			{
-				throw new SourceQueryException( 'GetInfo: Packet header mismatch. (0x' . DecHex( $Type ) . ')' );
+				throw new InvalidPacketException("GetInfo: Packet header mismatch. (0x' . DecHex( $Type ) . ')", InvalidPacketException::PACKET_HEADER_MISMATCH);
 			}
 			
 			$Server[ 'Protocol' ]   = $this->Buffer->GetByte( );
@@ -340,7 +344,8 @@
 				
 				if( $this->Buffer->Remaining( ) > 0 )
 				{
-					throw new SourceQueryException( 'GetInfo: unread data? ' . $this->Buffer->Remaining( ) . ' bytes remaining in the buffer. Please report it to the library developer.' );
+					throw new InvalidPacketException("GetInfo: unread data? " . $this->Buffer->Remaining( ) . " bytes remaining in the buffer. Please report it to the library developer.",
+						InvalidPacketException::BUFFER_NOT_EMPTY);
 				}
 			}
 			
@@ -350,7 +355,7 @@
 		/**
 		 * Get players on the server
 		 *
-		 * @throws SourceQueryException
+		 * @throws InvalidPacketException
 		 *
 		 * @return bool|array Returns array with players on success, false on failure
 		 */
@@ -381,7 +386,7 @@
 					}
 					else if( $Type !== self :: S2A_PLAYER )
 					{
-						throw new SourceQueryException( 'GetPlayers: Packet header mismatch. (0x' . DecHex( $Type ) . ')' );
+						throw new InvalidPacketException( 'GetPlayers: Packet header mismatch. (0x' . DecHex( $Type ) . ')', InvalidPacketException::PACKET_HEADER_MISMATCH);
 					}
 					
 					break;
@@ -408,7 +413,7 @@
 		/**
 		 * Get rules (cvars) from the server
 		 *
-		 * @throws SourceQueryException
+		 * @throws InvalidPacketException
 		 *
 		 * @return bool|array Returns array with rules on success, false on failure
 		 */
@@ -438,7 +443,7 @@
 					}
 					else if( $Type !== self :: S2A_RULES )
 					{
-						throw new SourceQueryException( 'GetRules: Packet header mismatch. (0x' . DecHex( $Type ) . ')' );
+						throw new InvalidPacketException( 'GetRules: Packet header mismatch. (0x' . DecHex( $Type ) . ')', InvalidPacketException::PACKET_HEADER_MISMATCH);
 					}
 					
 					break;
@@ -461,10 +466,13 @@
 			
 			return $Rules;
 		}
-		
+
 		/**
 		 * Get challenge (used for players/rules packets)
 		 *
+		 * @param $Header
+		 * @param $ExpectedResult
+		 * @throws InvalidPacketException
 		 * @return bool True if all went well, false if server uses old GoldSource protocol, and it already contains answer
 		 */
 		private function GetChallenge( $Header, $ExpectedResult )
@@ -504,7 +512,7 @@
 				}
 				default:
 				{
-					throw new SourceQueryException( 'GetChallenge: Packet header mismatch. (0x' . DecHex( $Type ) . ')' );
+					throw new InvalidPacketException( 'GetChallenge: Packet header mismatch. (0x' . DecHex( $Type ) . ')', InvalidPacketException::PACKET_HEADER_MISMATCH);
 				}
 			}
 		}

SourceQuery/SourceRcon.class.php

@@ -1,5 +1,8 @@
 <?php
-	/**
+use xPaw\SourceQuery\Exception\AuthenticationException;
+use xPaw\SourceQuery\Exception\TimeoutException;
+
+/**
 	 * Class written by xPaw
 	 *
 	 * Website: http://xpaw.me
@@ -51,7 +54,7 @@
 				
 				if( $ErrNo || !$this->RconSocket )
 				{
-					throw new SourceQueryException( 'Can\'t connect to RCON server: ' . $ErrStr );
+					throw new TimeoutException( 'Can\'t connect to RCON server: ' . $ErrStr, TimeoutException::TIMEOUT_CONNECT);
 				}
 				
 				Stream_Set_Timeout( $this->RconSocket, $this->Socket->Timeout );
@@ -103,7 +106,7 @@
 			
 			if( $Type === SourceQuery :: SERVERDATA_AUTH_RESPONSE )
 			{
-				throw new SourceQueryException( 'Bad rcon_password.' );
+				throw new AuthenticationException( 'Bad rcon_password.', AuthenticationException::BAD_PASSWORD);
 			}
 			else if( $Type !== SourceQuery :: SERVERDATA_RESPONSE_VALUE )
 			{
@@ -160,7 +163,7 @@
 			
 			if( $RequestID === -1 || $Type !== SourceQuery :: SERVERDATA_AUTH_RESPONSE )
 			{
-				throw new SourceQueryException( 'RCON authorization failed.' );
+				throw new AuthenticationException( 'RCON authorization failed.', AuthenticationException::BAD_PASSWORD);
 			}
 			
 			return true;