Successfully tested the library. Found and fixed a few issues. Once Dropbox moves out of beta with their API this will be clear to merge into the master branch.

Author: Jim

libraries/dropbox.php

@@ -35,7 +35,7 @@ class dropbox
  const HTTP_1 = '1.1';
  const LINE_END = "\r\n";
 
- const DEBUG = false;
+ const DEBUG = true;
 
  //Array that should contain the consumer secret and
  //key which should be passed into the constructor.
@@ -266,14 +266,14 @@ public function revisions($path, array $params = array(), $root='dropbox')
  * Restore a file or folder to a previous revision.
  *
  * @param string $path The path to the file or folder in question
- * @param string $revision The revision to revert to.
+ * @param string $revision The rev hash to revert to.
  * @param string $root (optional) Either 'dropbox' or 'sandbox'
  * @return a response object
  **/
  public function restore($path, $revision, $root='dropbox')
  {
  $path = str_replace(' ', '%20', $path);
- return $this->_post_request("/restore/{$root}/{$path}", array('rev'=>$revision));
+ return $this->_post_request("/restore/{$root}/{$path}?rev={$revision}");
  }
 
  /**
@@ -377,7 +377,7 @@ public function move($from, $to, $root='dropbox')
  // Below are the private methods used to create and send the requests to the dropbox api server.
  ////////////////////////////////////////////////////////////////////////////////////////////////
 
- private function _post_request($uri, array $data, $specialhost = false)
+ private function _post_request($uri, $data = false, $specialhost = false)
  {
  $request = "POST {$uri} HTTP/".self::HTTP_1.self::LINE_END;
  $host = self::HOST;
@@ -392,7 +392,7 @@ private function _post_request($uri, array $data, $specialhost = false)
  $header = $this->_build_header($url, 'POST', $request, self::LINE_END, $extra);
  if(self::DEBUG)error_log($header);
 
- $response = $this->_connect($url, $header, $data);
+ $response = $this->_connect($url, $header, 'POST', $data);
  return json_decode($response);
  }
 
@@ -406,7 +406,7 @@ private function _content_request($uri, $destination)
  $header = $this->_build_header($url, 'GET', $request, self::LINE_END, array('Host'=>$specialhost));
  if(self::DEBUG)error_log($header);
 
- $this->_connect($url, $header, false, $destination);
+ $this->_connect($url, $header, 'GET', false, $destination);
  }
 
  private function _response_request($uri)
@@ -418,7 +418,7 @@ private function _response_request($uri)
  $header = $this->_build_header($url, 'GET', $request, self::LINE_END);
  if(self::DEBUG)error_log($header);
 
- $response = $this->_connect($url, $header, false);
+ $response = $this->_connect($url, $header, 'GET');
  return json_decode($response);
  }
 
@@ -436,14 +436,15 @@ private function _build_header($url, $method, $prepend, $append, $overwrite = ar
  return $str;
  }
 
- private function _connect($url, $header, $postdata = false, $destination = false)
+ private function _connect($url, $header, $request, $postdata = false, $destination = false)
  {
  $ch = curl_init($url);
  curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC ) ;
  curl_setopt($ch, CURLOPT_SSLVERSION,3);
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
  curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+ curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $request);
  curl_setopt($ch, CURLOPT_HTTPHEADER, explode(self::LINE_END, $header));
  curl_setopt($ch, CURLINFO_HEADER_OUT, true);
 
@@ -454,6 +455,13 @@ private function _connect($url, $header, $postdata = false, $destination = false
  }
 
  $response = curl_exec($ch);
+ 
+ if(self::DEBUG)
+ {
+ error_log(print_r(curl_getinfo($ch), true));
+ error_log($response);
+ }
+ 
  //If the specified a destination and the request went OK write the file.
  if($destination !== false && curl_getinfo($ch, CURLINFO_HTTP_CODE) == '200')
  {