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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* This test sends data with CURLOPT_KEEP_SENDING_ON_ERROR.
* The server responds with an early error response.
* The test is successful if the connection can be reused for the next request,
* because this implies that the data has been sent completely to the server.
*/
#include "test.h"
#include "memdebug.h"
struct cb_data {
CURL *easy_handle;
int response_received;
int paused;
size_t remaining_bytes;
};
static void reset_data(struct cb_data *data, CURL *curl)
{
data->easy_handle = curl;
data->response_received = 0;
data->paused = 0;
data->remaining_bytes = 3;
}
static size_t read_callback(char *ptr, size_t size, size_t nitems,
void *userdata)
{
struct cb_data *data = (struct cb_data *)userdata;
/* wait until the server has sent all response headers */
if(data->response_received) {
size_t totalsize = nitems * size;
size_t bytes_to_send = data->remaining_bytes;
if(bytes_to_send > totalsize) {
bytes_to_send = totalsize;
}
memset(ptr, 'a', bytes_to_send);
data->remaining_bytes -= bytes_to_send;
return bytes_to_send;
}
else {
data->paused = 1;
return CURL_READFUNC_PAUSE;
}
}
static size_t write_callback(char *ptr, size_t size, size_t nmemb,
void *userdata)
{
struct cb_data *data = (struct cb_data *)userdata;
size_t totalsize = nmemb * size;
/* unused parameter */
(void)ptr;
/* all response headers have been received */
data->response_received = 1;
if(data->paused) {
/* continue to send request body data */
data->paused = 0;
curl_easy_pause(data->easy_handle, CURLPAUSE_CONT);
}
return totalsize;
}
static int perform_and_check_connections(CURL *curl, const char *description,
long expected_connections)
{
CURLcode res;
long connections = 0;
res = curl_easy_perform(curl);
if(res != CURLE_OK) {
fprintf(stderr, "curl_easy_perform() failed\n");
return TEST_ERR_MAJOR_BAD;
}
res = curl_easy_getinfo(curl, CURLINFO_NUM_CONNECTS, &connections);
if(res != CURLE_OK) {
fprintf(stderr, "curl_easy_getinfo() failed\n");
return TEST_ERR_MAJOR_BAD;
}
fprintf(stderr, "%s: expected: %ld connections; actual: %ld connections\n",
description, expected_connections, connections);
if(connections != expected_connections) {
return TEST_ERR_FAILURE;
}
return TEST_ERR_SUCCESS;
}
int test(char *URL)
{
struct cb_data data;
CURL *curl = NULL;
CURLcode res = CURLE_FAILED_INIT;
if(curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) {
fprintf(stderr, "curl_global_init() failed\n");
return TEST_ERR_MAJOR_BAD;
}
curl = curl_easy_init();
if(!curl) {
fprintf(stderr, "curl_easy_init() failed\n");
curl_global_cleanup();
return TEST_ERR_MAJOR_BAD;
}
reset_data(&data, curl);
test_setopt(curl, CURLOPT_URL, URL);
test_setopt(curl, CURLOPT_POST, 1L);
test_setopt(curl, CURLOPT_POSTFIELDSIZE_LARGE,
(curl_off_t)data.remaining_bytes);
test_setopt(curl, CURLOPT_VERBOSE, 1L);
test_setopt(curl, CURLOPT_READFUNCTION, read_callback);
test_setopt(curl, CURLOPT_READDATA, &data);
test_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
test_setopt(curl, CURLOPT_WRITEDATA, &data);
res = perform_and_check_connections(curl,
"First request without CURLOPT_KEEP_SENDING_ON_ERROR", 1);
if(res != TEST_ERR_SUCCESS) {
goto test_cleanup;
}
reset_data(&data, curl);
res = perform_and_check_connections(curl,
"Second request without CURLOPT_KEEP_SENDING_ON_ERROR", 1);
if(res != TEST_ERR_SUCCESS) {
goto test_cleanup;
}
test_setopt(curl, CURLOPT_KEEP_SENDING_ON_ERROR, 1L);
reset_data(&data, curl);
res = perform_and_check_connections(curl,
"First request with CURLOPT_KEEP_SENDING_ON_ERROR", 1);
if(res != TEST_ERR_SUCCESS) {
goto test_cleanup;
}
reset_data(&data, curl);
res = perform_and_check_connections(curl,
"Second request with CURLOPT_KEEP_SENDING_ON_ERROR", 0);
if(res != TEST_ERR_SUCCESS) {
goto test_cleanup;
}
res = TEST_ERR_SUCCESS;
test_cleanup:
curl_easy_cleanup(curl);
curl_global_cleanup();
return (int)res;
}
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