262 lines
6.9 KiB
C
262 lines
6.9 KiB
C
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/***************************************************************************
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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) 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.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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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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/* <DESC>
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* upload pausing
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* </DESC>
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*/
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/* This is based on the poc client of issue #11769
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <curl/curl.h>
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#include <curl/mprintf.h>
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static void log_line_start(FILE *log, const char *idsbuf, curl_infotype type)
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{
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/*
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* This is the trace look that is similar to what libcurl makes on its
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* own.
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*/
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static const char * const s_infotype[] = {
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"* ", "< ", "> ", "{ ", "} ", "{ ", "} "
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};
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if(idsbuf && *idsbuf)
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fprintf(log, "%s%s", idsbuf, s_infotype[type]);
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else
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fputs(s_infotype[type], log);
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}
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#define TRC_IDS_FORMAT_IDS_1 "[%" CURL_FORMAT_CURL_OFF_T "-x] "
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#define TRC_IDS_FORMAT_IDS_2 "[%" CURL_FORMAT_CURL_OFF_T "-%" \
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CURL_FORMAT_CURL_OFF_T "] "
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/*
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** callback for CURLOPT_DEBUGFUNCTION
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*/
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static int debug_cb(CURL *handle, curl_infotype type,
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char *data, size_t size,
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void *userdata)
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{
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FILE *output = stderr;
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static int newl = 0;
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static int traced_data = 0;
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char idsbuf[60];
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curl_off_t xfer_id, conn_id;
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(void)handle; /* not used */
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(void)userdata;
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if(!curl_easy_getinfo(handle, CURLINFO_XFER_ID, &xfer_id) && xfer_id >= 0) {
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if(!curl_easy_getinfo(handle, CURLINFO_CONN_ID, &conn_id) &&
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conn_id >= 0) {
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curl_msnprintf(idsbuf, sizeof(idsbuf), TRC_IDS_FORMAT_IDS_2,
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xfer_id, conn_id);
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}
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else {
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curl_msnprintf(idsbuf, sizeof(idsbuf), TRC_IDS_FORMAT_IDS_1, xfer_id);
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}
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}
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else
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idsbuf[0] = 0;
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switch(type) {
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case CURLINFO_HEADER_OUT:
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if(size > 0) {
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size_t st = 0;
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size_t i;
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for(i = 0; i < size - 1; i++) {
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if(data[i] == '\n') { /* LF */
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if(!newl) {
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log_line_start(output, idsbuf, type);
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}
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(void)fwrite(data + st, i - st + 1, 1, output);
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st = i + 1;
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newl = 0;
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}
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}
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if(!newl)
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log_line_start(output, idsbuf, type);
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(void)fwrite(data + st, i - st + 1, 1, output);
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}
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newl = (size && (data[size - 1] != '\n')) ? 1 : 0;
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traced_data = 0;
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break;
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case CURLINFO_TEXT:
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case CURLINFO_HEADER_IN:
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if(!newl)
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log_line_start(output, idsbuf, type);
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(void)fwrite(data, size, 1, output);
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newl = (size && (data[size - 1] != '\n')) ? 1 : 0;
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traced_data = 0;
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break;
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case CURLINFO_DATA_OUT:
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case CURLINFO_DATA_IN:
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case CURLINFO_SSL_DATA_IN:
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case CURLINFO_SSL_DATA_OUT:
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if(!traced_data) {
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if(!newl)
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log_line_start(output, idsbuf, type);
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fprintf(output, "[%ld bytes data]\n", (long)size);
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newl = 0;
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traced_data = 1;
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}
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break;
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default: /* nada */
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newl = 0;
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traced_data = 1;
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break;
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}
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return 0;
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}
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#define PAUSE_READ_AFTER 10
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static size_t total_read = 0;
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static size_t read_callback(char *ptr, size_t size, size_t nmemb,
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void *userdata)
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{
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(void)size;
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(void)nmemb;
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(void)userdata;
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if(total_read >= PAUSE_READ_AFTER) {
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return CURL_READFUNC_PAUSE;
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}
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else {
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ptr[0] = '\n';
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++total_read;
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return 1;
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}
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}
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static int progress_callback(void *clientp,
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double dltotal,
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double dlnow,
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double ultotal,
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double ulnow)
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{
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CURL *curl;
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(void)dltotal;
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(void)dlnow;
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(void)ultotal;
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(void)ulnow;
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curl = (CURL *)clientp;
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curl_easy_pause(curl, CURLPAUSE_CONT);
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return 0;
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}
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static int err(void)
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{
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fprintf(stderr, "something unexpected went wrong - bailing out!\n");
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exit(2);
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}
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int main(int argc, char *argv[])
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{
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CURL *curl;
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CURLcode rc = CURLE_OK;
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CURLU *cu;
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struct curl_slist *resolve = NULL;
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char resolve_buf[1024];
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char *url, *host = NULL, *port = NULL;
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if(argc != 2) {
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fprintf(stderr, "ERROR: need URL as argument\n");
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return 2;
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}
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url = argv[1];
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curl_global_init(CURL_GLOBAL_DEFAULT);
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curl_global_trace("ids,time");
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cu = curl_url();
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if(!cu) {
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fprintf(stderr, "out of memory\n");
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exit(1);
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}
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if(curl_url_set(cu, CURLUPART_URL, url, 0)) {
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fprintf(stderr, "not a URL: '%s'\n", url);
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exit(1);
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}
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if(curl_url_get(cu, CURLUPART_HOST, &host, 0)) {
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fprintf(stderr, "could not get host of '%s'\n", url);
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exit(1);
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}
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if(curl_url_get(cu, CURLUPART_PORT, &port, 0)) {
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fprintf(stderr, "could not get port of '%s'\n", url);
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exit(1);
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}
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memset(&resolve, 0, sizeof(resolve));
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curl_msnprintf(resolve_buf, sizeof(resolve_buf)-1,
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"%s:%s:127.0.0.1", host, port);
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resolve = curl_slist_append(resolve, resolve_buf);
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curl = curl_easy_init();
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if(!curl) {
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fprintf(stderr, "out of memory\n");
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exit(1);
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}
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/* We want to use our own read function. */
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curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
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/* It will help us to continue the read function. */
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curl_easy_setopt(curl, CURLOPT_XFERINFOFUNCTION, progress_callback);
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curl_easy_setopt(curl, CURLOPT_XFERINFODATA, curl);
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curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
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/* It will help us to ensure that keepalive does not help. */
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curl_easy_setopt(curl, CURLOPT_TCP_KEEPALIVE, 1L);
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curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 1L);
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curl_easy_setopt(curl, CURLOPT_TCP_KEEPINTVL, 1L);
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/* Enable uploading. */
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curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "POST");
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curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
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if(curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L) != CURLE_OK ||
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curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, debug_cb)
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!= CURLE_OK ||
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curl_easy_setopt(curl, CURLOPT_RESOLVE, resolve) != CURLE_OK)
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err();
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curl_easy_setopt(curl, CURLOPT_URL, url);
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rc = curl_easy_perform(curl);
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if(curl) {
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curl_easy_cleanup(curl);
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}
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curl_slist_free_all(resolve);
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curl_free(host);
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curl_free(port);
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curl_url_cleanup(cu);
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curl_global_cleanup();
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return (int)rc;
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}
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