Adopted composer autoload way

Split up classes into separate way, to allow autoloader to do it's work Signed-off-by: Diederik de Groot <ddegroot@talon.nl>
2020-03-22 10:15:31 +01:00
parent fcf7e52370
commit 5064cb3e36
34 changed files with 1292 additions and 1023 deletions
--- a/lib/TFTP/WriteTransfer.php
+++ b/lib/TFTP/WriteTransfer.php
@@ -0,0 +1,158 @@
+<?php
+/*
+ * PHP TFTP Server
+ *
+ * Copyright (c) 2011 <mattias.wadman@gmail.com>
+ *
+ * MIT License:
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+declare(strict_types=1);
+namespace PROVISION\TFTP;
+
+use PROVISION\Logger as Logger;
+use PROVISION\TFTP as TFTP;
+
+class TFTPWriteTransfer extends TFTP\Transfer {
+  private $_last_sent_ack;
+  private $_last_recv_data;
+  private $_buffer;
+  private $_buffer_size;
+  private $_next_block;
+  private $_filename;
+  private $_mode;
+
+  function __construct($server, $peer, $extensions)
+  {
+    parent::__construct($server, $peer, $extensions);
+    $this->_last_sent_ack = time();
+    $this->_last_recv_data = $this->_last_sent_ack;
+    $this->_buffer = array();
+    $this->_buffer_size = 0;
+    $this->_last_recv_block = 0;
+    $this->_filename = false;
+    $this->_mode = false;
+
+    if(isset($extensions["tsize"]))
+      $this->tsize = (int)$extensions["tsize"];
+
+    $this->log_debug("new write transfer");
+  }
+
+  private function packet_ack_current()
+  {
+    $this->_last_sent_ack = time();
+
+    if($this->_last_recv_block == 0 && $this->use_extensions())
+      return $this->packet_oack();
+    else
+      return TFTPServer::packet_ack($this->_last_recv_block);
+  }
+
+  public function wrq($filename, $mode)
+  {
+    $this->log_debug("WRQ: filename $filename in $mode mode");
+
+    if($this->state != TFTPTransferState::READY)
+      return $this->illegal_operation("WRQ", "Not in ready state");
+
+    if(!$this->_server->writable($this->peer, $filename))
+      return $this->terminal_info(TFTPError::ACCESS_VIOLATION,
+				  "File $filename is not writable");
+
+    if($this->tsize != 0 && $this->tsize > $this->_server->max_put_size)
+      return $this->terminal_info(TFTPError::DISK_FULL,
+				  "File too big, " .
+				  $this->tsize . "(tsize) > " .
+				  $this->_server->max_put_size);
+
+    $this->state = TFTPTransferState::RECEIVING;
+    $this->_filename = $filename;
+    $this->_mode = $mode;
+    $this->_last_sent_ack = time();
+
+    $this->log_debug("WRQ: ack request");
+    if($this->use_extensions())
+      return $this->packet_oack();
+    else
+      return TFTPServer::packet_ack(0);
+  }
+
+  public function data($block, $data)
+  {
+    if($this->state != TFTPTransferState::RECEIVING)
+      return $this->illegal_operation("DATA", "Not in receiving state");
+
+    $this->log_debug("DATA: block $block");
+    $this->last_recv_data = time();
+
+    if($block <= $this->_last_recv_block) {
+      $this->log_debug("DATA: duplicate block $block");
+      // just ignore it
+      return false;
+    }
+
+    if($block != $this->_last_recv_block + 1)
+      return $this->illegal_operation("DATA",
+				      "Expected block " . 
+				      ($this->_last_recv_block + 1) .
+				      " got $block");
+
+    $this->_last_recv_block = $block;
+    $this->_last_recv_data = time();
+    array_push($this->_buffer, $data);
+    $this->_buffer_size += strlen($data);
+
+    if($this->_buffer_size > $this->_server->max_put_size)
+      return $this->terminal_info(TFTPError::DISK_FULL,
+				  "File too big, " .
+				  $this->_buffer_size . " > " .
+				  $this->_server->max_put_size);
+
+    if(strlen($data) < $this->block_size) {
+      $this->log_debug("DATA: last, done");
+      $this->state = TFTPTransferState::TERMINATING;
+      $this->log_info("Writing {$this->_filename} " .
+		      "({$this->_buffer_size} bytes)");
+      $this->_server->put($this->peer, $this->_filename, $this->_mode,
+			  implode("", $this->_buffer));
+      return $this->packet_ack_current();
+    }
+
+    $this->log_debug("DATA: ack block $block");
+    return $this->packet_ack_current();
+  }
+
+  public function retransmit($now)
+  {
+    if($now - $this->_last_recv_data > $this->_server->timeout) {
+      $this->log_debug("retransmit: timeout");
+      $this->state = TFTPTransferState::TERMINATING;
+      return false;
+    }
+
+    if($now - $this->_last_sent_ack > $this->retransmit_timeout) {
+      $this->log_debug("retransmit: reack block {$this->_last_recv_block}");
+      return $this->packet_ack_current();
+    }
+
+    return false;
+  }
+}
+?>