Added php-xml to README

Added initial lib/xml.php
Renamed srv/tftp/tftp_provisioner.php -> srv/tftp/tftp_provisioner

Signed-off-by: Diederik de Groot <ddegroot@talon.nl>

srv/tftp/tftp_provisioner

@@ -0,0 +1,91 @@
+#!/usr/bin/env php
+<?php
+require_once("lib/tftp.php");
+require_once("lib/config.php");
+require_once("lib/resolver.php");
+
+class TFTPProvisioner extends TFTPServer
+{
+  private $_debug;
+  private $_resolver;
+  private $_settings_path;
+
+  function __construct($server_url, $config, $logger = NULL, $debug = false)
+  {
+    $this->_config = $config;
+    if (!$logger) {
+      $logger = new Logger_NULL('LOG_ERROR');
+    }
+    parent::__construct($server_url, $logger);
+    $this->_debug = $debug;
+    $this->max_put_size = 60000000;
+    $this->_resolver = new Resolver($config);
+    $this->_settings_path = $this->_config['main']['base_path'] . DIRECTORY_SEPARATOR
+                . $this->_config['subdirs']['settings']['path'] . DIRECTORY_SEPARATOR;
+  }
+
+  public function writable($peer, $req_filename)
+  {
+    $filename = $this->_settings_path . basename($req_filename);
+    if (file_exists($filename)) {
+      return is_writable($filename);
+    }
+    return is_writable($this->_settings_path);
+  }
+
+  public function get($peer, $req_filename, $mode)
+  {
+    $filename = $this->_resolver->resolve($req_filename);
+    if (file_exists($filename) && is_readable($filename))
+      return file_get_contents($filename);
+    return false;
+  }
+
+  public function put($peer, $req_filename, $mode, $content)
+  {
+    // (SPA phones can write to tftpboot -> redirect PUT request to 'settings' folder)
+    $filename = $this->_settings_path . basename($req_filename);
+    return file_put_contents($filename, $content);
+  }
+
+  /*
+   * STDOUT Log functions
+   */
+  private function log($peer, $level, $message)
+  {
+    echo(date("H:i:s") . " $level $peer $message\n");
+  }
+
+  public function log_debug($peer, $message)
+  {
+    if($this->_debug)
+      $this->log($peer, "D", $message);
+  }
+
+  public function log_info($peer, $message)
+  {
+    $this->log($peer, "I", $message);
+  }
+
+  public function log_warning($peer, $message)
+  {
+    $this->log($peer, "W", $message);
+  }
+
+  public function log_error($peer, $message)
+  {
+    $this->log($peer, "E", $message);
+  }
+
+}
+
+$host = "127.0.0.1";
+$port = 10069;
+$url = "udp://$host:$port";
+
+echo "\nStarting TFTP Provisioner...\n";
+$server = new TFTPProvisioner($url, $config, $logger);
+if(!$server->loop($error))
+  die("$error\n");
+?>
+