Luracast Restler是否支持多部分/表单数据格式？

Question

I have a sample Restler class:

   class Author {
      ....

      function post($request_data=NULL) {
         var_dump($request_data);
         var_dump($_FILES);
         var_dump($_REQUEST);

         return $this->dp->insert($this->_validate($request_data));
       }

      ....
  }

I'm trying to POST file and some data to Restler service by simple HTML form:

  <FORM action="http://host/index.php/author" enctype="application/x-www-form-urlencoded" method="post">
      Name:  <INPUT type="text" name="name" value="dima"><BR>
      Email: <INPUT type="text" name="email" value="dima@prot.lt"><BR>
      File:  <INPUT type="file" name="files"><BR> 
      <INPUT type="submit" value="Send"> <INPUT type="reset">
  </FORM>

It is clear, that the $_FILES array will be empty, but $_REQUEST and $request_data will have three variables: name = "dima" , email = "dima@prot.lt" and file = "selected file name" .

In the next test, I changed the form enctype value to multipart/form-data.

  <FORM action="http://host/index.php/author" enctype="multipart/form-data" method="post">
      Name:  <INPUT type="text" name="name" value="dima"><BR>
      Email: <INPUT type="text" name="email" value="dima@proto.lt"><BR>
      File:  <INPUT type="file" name="files"><BR> 
      <INPUT type="submit" value="Send"> <INPUT type="reset">
  </FORM>

When I press submit form, in the $_REQUEST array, I will see the same three variables, the $_FILES array will be filled with uploaded file information, BUT the $request_data array will be empty !!

Can anybody help in this situation? Where have I made a mistake?

Answer 1

I have solved this issue, by writing Restler plugin, may be other will have the same problem:

<?php

/**
 * URL Encoded String in multipart data format
 * @category   Framework
 * @author     Dmitrij Orlov <dmitrij.orlov@gmail.com>
*/
class UrlMultipartFormat implements iFormat
{
    const REQUEST_MIME      = 'multipart/form-data';
    const RESPONCE_MIME     = 'application/json';
    const EXTENSION         = 'post';

    public function getMIMEMap() {
        return array(self::EXTENSION=>self::REQUEST_MIME);
    }

    public function getMIME(){
        return self::RESPONCE_MIME;
    }

    public function getExtension(){
        return self::EXTENSION;
    }

    public function setMIME($mime){
        //do nothing
    }

    public function setExtension($extension){
        //do nothing
    }

    public function encode($data, $human_readable=FALSE){
        return $human_readable ? 
        $this->json_format(json_encode(object_to_array($data))) : 
        json_encode(object_to_array($data));
    }

    public function decode($data){
        return $_REQUEST;
    }

    public function __toString(){
        return $this->getExtension();
    }

    /**
     * Pretty print JSON string
     * @param string $json
     * @return string formated json
     */
    private function json_format($json)
    {
        $tab = "  ";
        $new_json = "";
        $indent_level = 0;
        $in_string = FALSE;

        $len = strlen($json);

        for($c = 0; $c < $len; $c++) {
            $char = $json[$c];
            switch($char) {
                case '{':
                case '[':
                    if(!$in_string) {
                        $new_json .= $char . "\n" . 
                        str_repeat($tab, $indent_level+1);
                        $indent_level++;
                    } else {
                        $new_json .= $char;
                    }
                    break;
                case '}':
                case ']':
                    if(!$in_string) {
                        $indent_level--;
                        $new_json .= "\n".str_repeat($tab, $indent_level).$char;
                    } else {
                        $new_json .= $char;
                    }
                    break;
                case ',':
                    if(!$in_string) {
                        $new_json .= ",\n" . str_repeat($tab, $indent_level);
                    } else {
                        $new_json .= $char;
                    }
                    break;
                case ':':
                    if(!$in_string) {
                        $new_json .= ": ";
                    } else {
                        $new_json .= $char;
                    }
                    break;
                case '"':
                    if($c==0){
                        $in_string = TRUE;
                    }elseif($c > 0 && $json[$c-1] != '\\') {
                        $in_string = !$in_string;
                    }
                default:
                    $new_json .= $char;
                    break;
            }
        }

        return $new_json;
    }

}

?>

Answer 2

Restler v2.1 and below does not support multipart/form-data as we are focusing on API creation. But we are open to ideas and will consider adding it to the future versions of it.

There is nothing wrong in using $_REQUEST and $_FILES directly in your function and currently that is the only option to get the data