curl/tests/unit/unit2602.c
Stefan Eissing 61f52a97e9
lib: add bufq and dynhds
Adding `bufq`:
- at init() time configured to hold up to `n` chunks of `m` bytes each.
- various methods for reading from and writing to it.
- `peek` support to get access to buffered data without copy
- `pass` support to allow buffer flushing on write if it becomes full
- use case: IO buffers for dynamic reads and writes that do not blow up
- distinct from `dynbuf` in that:
  - it maintains a read position
  - writes on a full bufq return CURLE_AGAIN instead of nuking itself
- Init options:
  - SOFT_LIMIT: allow writes into a full bufq
  - NO_SPARES: free empty chunks right away
- a `bufc_pool` that can keep a number of spare chunks to
  be shared between different `bufq` instances

Adding `dynhds`:
- a straightforward list of name+value pairs as used for HTTP headers
- headers can be appended dynamically
- headers can be removed again
- headers can be replaced
- headers can be looked up
- http/1.1 formatting into a `dynbuf`
- configured at init() with limits on header counts and total string
  sizes
- use case: pass a HTTP request or response around without being version
  specific
- express a HTTP request without a curl easy handle (used in h2 proxy
  tunnels)
- future extension possibilities:
  - conversions of `dynhds` to nghttp2/nghttp3 name+value arrays

Closes #10720
2023-03-30 09:08:05 +02:00

126 lines
4.6 KiB
C

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 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.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "curlcheck.h"
#include "urldata.h"
#include "dynbuf.h"
#include "dynhds.h"
#include "curl_log.h"
static CURLcode unit_setup(void)
{
return CURLE_OK;
}
static void unit_stop(void)
{
}
UNITTEST_START
struct dynhds hds;
struct dynbuf dbuf;
CURLcode result;
size_t i;
/* add 1 more header than allowed */
Curl_dynhds_init(&hds, 2, 128);
fail_if(Curl_dynhds_count(&hds), "should be empty");
fail_if(Curl_dynhds_add(&hds, "test1", 5, "123", 3), "add failed");
fail_if(Curl_dynhds_add(&hds, "test2", 5, "456", 3), "add failed");
/* remove and add without exceeding limits */
for(i = 0; i < 100; ++i) {
if(Curl_dynhds_remove(&hds, "test2", 5) != 1) {
fail_if(TRUE, "should");
break;
}
if(Curl_dynhds_add(&hds, "test2", 5, "456", 3)) {
fail_if(TRUE, "add failed");
break;
}
}
fail_unless(Curl_dynhds_count(&hds) == 2, "should hold 2");
/* set, replacing previous entry without exceeding limits */
for(i = 0; i < 100; ++i) {
if(Curl_dynhds_set(&hds, "test2", 5, "456", 3)) {
fail_if(TRUE, "add failed");
break;
}
}
fail_unless(Curl_dynhds_count(&hds) == 2, "should hold 2");
/* exceed limit on # of entries */
result = Curl_dynhds_add(&hds, "test3", 5, "789", 3);
fail_unless(result, "add should have failed");
fail_unless(Curl_dynhds_count_name(&hds, "test", 4) == 0, "false positive");
fail_unless(Curl_dynhds_count_name(&hds, "test1", 4) == 0, "false positive");
fail_if(Curl_dynhds_get(&hds, "test1", 4), "false positive");
fail_unless(Curl_dynhds_get(&hds, "test1", 5), "false negative");
fail_unless(Curl_dynhds_count_name(&hds, "test1", 5) == 1, "should");
fail_unless(Curl_dynhds_ccount_name(&hds, "test2") == 1, "should");
fail_unless(Curl_dynhds_cget(&hds, "test2"), "should");
fail_unless(Curl_dynhds_ccount_name(&hds, "TEST2") == 1, "should");
fail_unless(Curl_dynhds_ccontains(&hds, "TesT2"), "should");
fail_unless(Curl_dynhds_contains(&hds, "TeSt2", 5), "should");
Curl_dynhds_free(&hds);
/* add header exceeding max overall length */
Curl_dynhds_init(&hds, 128, 10);
fail_if(Curl_dynhds_add(&hds, "test1", 5, "123", 3), "add failed");
fail_unless(Curl_dynhds_add(&hds, "test2", 5, "456", 3), "should fail");
fail_if(Curl_dynhds_add(&hds, "t", 1, "1", 1), "add failed");
Curl_dynhds_reset(&hds);
Curl_dynhds_free(&hds);
Curl_dynhds_init(&hds, 128, 4*1024);
fail_if(Curl_dynhds_add(&hds, "test1", 5, "123", 3), "add failed");
fail_if(Curl_dynhds_add(&hds, "test1", 5, "123", 3), "add failed");
fail_if(Curl_dynhds_cadd(&hds, "blablabla", "thingies"), "add failed");
fail_if(Curl_dynhds_h1_cadd_line(&hds, "blablabla: thingies"), "add failed");
fail_unless(Curl_dynhds_ccount_name(&hds, "blablabla") == 2, "should");
fail_unless(Curl_dynhds_cremove(&hds, "blablabla") == 2, "should");
fail_if(Curl_dynhds_ccontains(&hds, "blablabla"), "should not");
result = Curl_dynhds_h1_cadd_line(&hds, "blablabla thingies");
fail_unless(result, "add should have failed");
if(!result) {
fail_unless(Curl_dynhds_ccount_name(&hds, "bLABlaBlA") == 0, "should");
fail_if(Curl_dynhds_cadd(&hds, "Bla-Bla", "thingies"), "add failed");
Curl_dyn_init(&dbuf, 32*1024);
fail_if(Curl_dynhds_h1_dprint(&hds, &dbuf), "h1 print failed");
if(Curl_dyn_ptr(&dbuf)) {
fprintf(stderr, "%s", Curl_dyn_ptr(&dbuf));
fail_if(strcmp(Curl_dyn_ptr(&dbuf),
"test1: 123\r\ntest1: 123\r\nBla-Bla: thingies\r\n"),
"h1 format differs");
}
Curl_dyn_free(&dbuf);
}
Curl_dynhds_free(&hds);
UNITTEST_STOP