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1e4cb333ef
Input buffer filling may delay the data sending if data reads are slow. To overcome this problem, file and callback data reads do not accumulate in buffer anymore. All other data (memory data and mime framing) are considered as fast and still concatenated in buffer. As this may highly impact performance in terms of data overhead, an early end of part data check is added to spare a read call. When encoding a part's data, an encoder may require more bytes than made available by a single read. In this case, the above rule does not apply and reads are performed until the encoder is able to deliver some data. Tests 643, 644, 645, 650 and 654 have been adapted to the output data changes, with test data size reduced to avoid the boredom of long lists of 1-byte chunks in verification data. New test 667 checks mimepost using single-byte read callback with encoder. New test 668 checks the end of part data early detection. Fixes #4826 Reported-by: MrdUkk on github
123 lines
3.5 KiB
C
123 lines
3.5 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include "test.h"
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#include "memdebug.h"
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static char data[]=
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#ifdef CURL_DOES_CONVERSIONS
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/* ASCII representation with escape sequences for non-ASCII platforms */
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"\x64\x75\x6d\x6d\x79";
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#else
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"dummy";
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#endif
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struct WriteThis {
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char *readptr;
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curl_off_t sizeleft;
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};
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static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *userp)
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{
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struct WriteThis *pooh = (struct WriteThis *)userp;
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size_t len = strlen(pooh->readptr);
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(void) size; /* Always 1.*/
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if(len > nmemb)
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len = nmemb;
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if(len) {
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memcpy(ptr, pooh->readptr, len);
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pooh->readptr += len;
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}
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return len;
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}
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int test(char *URL)
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{
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CURL *easy = NULL;
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curl_mime *mime = NULL;
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curl_mimepart *part;
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CURLcode result;
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int res = TEST_ERR_FAILURE;
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struct WriteThis pooh1, pooh2;
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/*
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* Check early end of part data detection.
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*/
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if(curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) {
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fprintf(stderr, "curl_global_init() failed\n");
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return TEST_ERR_MAJOR_BAD;
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}
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easy = curl_easy_init();
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/* First set the URL that is about to receive our POST. */
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test_setopt(easy, CURLOPT_URL, URL);
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/* get verbose debug output please */
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test_setopt(easy, CURLOPT_VERBOSE, 1L);
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/* include headers in the output */
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test_setopt(easy, CURLOPT_HEADER, 1L);
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/* Prepare the callback structures. */
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pooh1.readptr = data;
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pooh1.sizeleft = (curl_off_t) strlen(data);
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pooh2 = pooh1;
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/* Build the mime tree. */
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mime = curl_mime_init(easy);
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part = curl_mime_addpart(mime);
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curl_mime_name(part, "field1");
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/* Early end of data detection can be done because the data size is known. */
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curl_mime_data_cb(part, (curl_off_t) strlen(data),
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read_callback, NULL, NULL, &pooh1);
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part = curl_mime_addpart(mime);
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curl_mime_name(part, "field2");
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/* Using an undefined length forces chunked transfer and disables early
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end of data detection for this part. */
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curl_mime_data_cb(part, (curl_off_t) -1, read_callback, NULL, NULL, &pooh2);
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part = curl_mime_addpart(mime);
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curl_mime_name(part, "field3");
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/* Regular file part sources early end of data can be detected because
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the file size is known. In addition, and EOF test is performed. */
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curl_mime_filedata(part, "log/file668.txt");
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/* Bind mime data to its easy handle. */
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test_setopt(easy, CURLOPT_MIMEPOST, mime);
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/* Send data. */
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result = curl_easy_perform(easy);
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if(result) {
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fprintf(stderr, "curl_easy_perform() failed\n");
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res = (int) result;
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}
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test_cleanup:
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curl_easy_cleanup(easy);
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curl_mime_free(mime);
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curl_global_cleanup();
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return res;
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}
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