Method: Curl::Easy#http_post

Defined in:

ext/curb_easy.c

#http_post("url = encoded%20form%20data;and=so%20on") ⇒ true #http_post("url = encoded%20form%20data", "and = so%20on", ...) ⇒ true #http_post("url = encoded%20form%20data", Curl: :PostField, "and = so%20on", ...) ⇒ true #http_post(Curl: :PostField, Curl: :PostField..., Curl: :PostField) ⇒ true

POST the specified formdata to the currently configured URL using the current options set for this Curl::Easy instance. This method always returns true, or raises an exception (defined under Curl::Err) on error.

The Content-type of the POST is determined by the current setting of multipart_form_post? , according to the following rules:

• When false (the default): the form will be POSTed with a content-type of ‘application/x-www-form-urlencoded’, and any of the four calling forms may be used.

• When true: the form will be POSTed with a content-type of ‘multipart/formdata’. Only the last calling form may be used, i.e. only PostField instances may be POSTed. In this mode, individual fields’ content-types are recognised, and file upload fields are supported.

Overloads:

• #http_post("url = encoded%20form%20data;and=so%20on") ⇒ true

  Returns:

  • (true)
• #http_post("url = encoded%20form%20data", "and = so%20on", ...) ⇒ true

  Returns:

  • (true)
• #http_post("url = encoded%20form%20data", Curl: :PostField, "and = so%20on", ...) ⇒ true

  Returns:

  • (true)
• #http_post(Curl: :PostField, Curl: :PostField..., Curl: :PostField) ⇒ true

  Returns:

  • (true)

# File 'ext/curb_easy.c', line 2677

static VALUE ruby_curl_easy_perform_post(int argc, VALUE *argv, VALUE self) {
  ruby_curl_easy *rbce;
  CURL *curl;
  int i;
  VALUE args_ary;

  rb_scan_args(argc, argv, "*", &args_ary);

  Data_Get_Struct(self, ruby_curl_easy, rbce);
  curl = rbce->curl;

  memset(rbce->err_buf, 0, sizeof(rbce->err_buf));

  curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, NULL);

  if (rbce->multipart_form_post) {
    VALUE ret;
    struct curl_httppost *first = NULL, *last = NULL;

    // Make the multipart form
    for (i = 0; i < argc; i++) {
      if (rb_obj_is_instance_of(argv[i], cCurlPostField)) {
        append_to_form(argv[i], &first, &last);
      } else if (rb_type(argv[i]) == T_ARRAY) {
        // see: https://github.com/rvanlieshout/curb/commit/8bcdefddc0162484681ebd1a92d52a642666a445
        long c = 0, argv_len = RARRAY_LEN(argv[i]);
        for (; c < argv_len; ++c) {
          if (rb_obj_is_instance_of(rb_ary_entry(argv[i],c), cCurlPostField)) {
            append_to_form(rb_ary_entry(argv[i],c), &first, &last);
          } else {
            rb_raise(eCurlErrInvalidPostField, "You must use PostFields only with multipart form posts");
            return Qnil;
          }
        }
      } else {
        rb_raise(eCurlErrInvalidPostField, "You must use PostFields only with multipart form posts");
        return Qnil;
      }
    }

    curl_easy_setopt(curl, CURLOPT_POST, 0);
    curl_easy_setopt(curl, CURLOPT_HTTPPOST, first);
    ret = rb_funcall(self, rb_intern("perform"), 0);
    curl_formfree(first);

    return ret;
  } else {
    VALUE post_body = Qnil;
    /* TODO: check for PostField.file and raise error before to_s fails */
    if ((post_body = rb_funcall(args_ary, idJoin, 1, rbstrAmp)) == Qnil) {
      rb_raise(eCurlErrError, "Failed to join arguments");
      return Qnil;
    } else {
      /* if the function call above returns an empty string because no additional arguments were passed this makes sure
         a previously set easy.post_body = "arg=foo&bar=bin"  will be honored */
      if( post_body != Qnil && rb_type(post_body) == T_STRING && RSTRING_LEN(post_body) > 0 ) {
        ruby_curl_easy_post_body_set(self, post_body);
      }

      /* if post body is not defined, set it so we enable POST header, even though the request body is empty */
      if( rb_easy_nil("postdata_buffer") ) {
        ruby_curl_easy_post_body_set(self, post_body);
      }

      return rb_funcall(self, rb_intern("perform"), 0);
    }
  }
}