curl_internal.h File Reference

#include "platform.h"
#include <jansson.h>
#include <microhttpd.h>
#include "gnunet_curl_lib.h"

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Functions
void *	GNUNET_CURL_download_get_result_ (struct GNUNET_CURL_DownloadBuffer *db, CURL *eh, long *response_code)

Function Documentation

GNUNET_CURL_download_get_result_()

void * GNUNET_CURL_download_get_result_	(	struct GNUNET_CURL_DownloadBuffer *	db,
		CURL *	eh,
		long *	response_code
	)

Definition at line 651 of file curl.c.

{
  json_t *json;
  char *ct;
 
#if DEBUG
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Downloaded body: %.*s\n",
              (int) db->buf_size,
              (char *) db->buf);
#endif
  if (CURLE_OK !=
      curl_easy_getinfo (eh,
                         CURLINFO_RESPONSE_CODE,
                         response_code))
  {
    /* unexpected error... */
    GNUNET_break (0);
    *response_code = 0;
  }
  if (MHD_HTTP_NO_CONTENT == *response_code)
    return NULL;
  if ((CURLE_OK !=
       curl_easy_getinfo (eh,
                          CURLINFO_CONTENT_TYPE,
                          &ct)) ||
      (NULL == ct) ||
      (! is_json (ct)))
  {
    /* No content type or explicitly not JSON, refuse to parse
       (but keep response code) */
    if (0 != db->buf_size)
    {
      const char *url;
 
      if (CURLE_OK !=
          curl_easy_getinfo (eh,
                             CURLINFO_EFFECTIVE_URL,
                             &url))
        url = "<unknown URL>";
      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                  "Request to `%s' was expected to return a body of type `application/json', got `%s'\n",
                  url,
                  ct);
    }
    return NULL;
  }
  if (0 == *response_code)
  {
    const char *url;
 
    if (CURLE_OK !=
        curl_easy_getinfo (eh,
                           CURLINFO_EFFECTIVE_URL,
                           &url))
      url = "<unknown URL>";
    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                "Failed to download response from `%s': \n",
                url);
    return NULL;
  }
  json = NULL;
  if (0 == db->eno)
  {
    json_error_t error;
 
    json = json_loadb (db->buf,
                       db->buf_size,
                       JSON_REJECT_DUPLICATES | JSON_DISABLE_EOF_CHECK,
                       &error);
    if (NULL == json)
    {
      JSON_WARN (error);
      *response_code = 0;
      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                  "Failed to parse JSON response: %s\n",
                  error.text);
    }
  }
  GNUNET_free (db->buf);
  db->buf = NULL;
  db->buf_size = 0;
  return json;
}

References db, GNUNET_break, GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_WARNING, GNUNET_free, GNUNET_log, is_json(), JSON_WARN, and MHD_HTTP_NO_CONTENT.

Referenced by GNUNET_CURL_gnunet_rc_create(), and GNUNET_CURL_perform().

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