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/*
* Description: This is intended as a helper script for fb only.
*
* Synopsis: ./fb-upload <pastebin URL> <file>
*
* Author: Florian "Bluewind" Pritz <flo@xssn.at>
*
* Licensed under GPLv3
* (see COPYING for full license text)
*/
#include <stdio.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <libgen.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <curl/curl.h>
#include <curl/types.h>
#include <curl/easy.h>
/* struct which holds the persistent data for progress_callback */
struct progressData {
struct timeval starttime;
struct timeval last;
double ullast;
int lastStringLength;
};
/* load the contents of file fn into data */
int load_file(const char *fn, char **data, size_t *data_size)
{
FILE *fp;
size_t buf_size = 1024*1024; /* use 1MiB chunks */
int size = 0;
fp = fopen(fn, "rb");
if (fp == NULL) {
perror("load_file");
return 1;
}
/* read the file in buf_size chunks and appened the data to *data */
while (!feof(fp)) {
*data = realloc(*data, *data_size + buf_size);
if (*data == NULL) {
perror("load_file");
return 1;
}
size = fread(*data + *data_size, sizeof(char), buf_size, fp);
*data_size += size;
}
fclose(fp);
return 0;
}
void format_bytes(double bytes, char *buf)
{
double base = 0;
char suffix[][4] = {"B", "KiB", "MiB", "GiB", "TiB"};
base = log(bytes) / log(1024);
snprintf(buf, 64, "%.2f%s", pow(1024, base - floor(base)), suffix[(int)floor(base)]);
}
int progress_callback(void *cb_data,
double dltotal, double dlnow,
double ultotal, double ulnow)
{
struct timeval now;
struct progressData *data = (struct progressData *)cb_data;
double timeSpent = 0;
int printed = 0;
char speed[64];
char total[64];
if (0 == ulnow)
return 0;
/* upload complete; clean up */
if (ulnow >= ultotal) {
fprintf(stderr, "%*s\r", data->lastStringLength + 1, "");
return 0;
}
gettimeofday(&now, NULL);
/* only refresh once a second */
if (data->last.tv_sec == now.tv_sec)
return 0;
/* calculate time between this and the last call in seconds */
timeSpent =
(double)(now.tv_sec - data->last.tv_sec) +
(double)(now.tv_usec - data->last.tv_usec) / 1000000.0;
format_bytes((ulnow - data->ullast) / timeSpent, (char *)&speed);
format_bytes(ulnow, (char *)&total);
/* print the progress */
printed = fprintf(stderr,
"\r%s/s uploaded: %.1f%% = %s",
speed, /* upload speed */
ulnow * 100.0 / ultotal, /* percent uploaded */
total); /* total data uploaded */
/* pad the string if the last one was longer to remove left over characters */
if (data->lastStringLength > printed)
fprintf(stderr, "%*s", data->lastStringLength - printed, "");
/* save current values for the next run */
data->ullast = ulnow;
data->last = now;
data->lastStringLength = printed;
return 0;
}
int main(int argc, char *argv[])
{
CURL *curl;
CURLcode res;
char *userAgent = "fb-client/@VERSION@";
struct progressData cb_data = {
.starttime = {.tv_sec = 0, .tv_usec = 0},
.last = {.tv_sec = 0, .tv_usec = 0},
.ullast = 0.0,
.lastStringLength = 0
};
struct stat statbuf;
struct curl_httppost *formpost=NULL;
struct curl_httppost *lastptr=NULL;
struct curl_slist *headerlist=NULL;
static const char buf[] = "Expect:";
struct curl_forms forms[4];
char *data = NULL;
size_t data_size = 0;
/* simple arg check */
if(argc != 3)
return 1;
if (curl_global_init(CURL_GLOBAL_ALL) != 0) {
fprintf(stderr, "Error initializing curl");
return 10;
}
if(stat(argv[2], &statbuf) == -1) {
perror("fb-upload");
return 1;
}
/* load files with 0 size (/proc files for example) into memory so we can
* determine their real length */
if (statbuf.st_size == 0) {
if (load_file(argv[2], &data, &data_size) != 0) {
return 1;
}
forms[0].option = CURLFORM_BUFFER;
forms[0].value = basename(argv[2]);
forms[1].option = CURLFORM_BUFFERPTR;
forms[1].value = data;
forms[2].option = CURLFORM_BUFFERLENGTH;
forms[2].value = (char *)data_size;
forms[3].option = CURLFORM_END;
} else {
forms[0].option = CURLFORM_FILE;
forms[0].value = argv[2];
forms[1].option = CURLFORM_END;
}
/* Fill in the file upload field */
curl_formadd(&formpost,
&lastptr,
CURLFORM_COPYNAME, "file",
CURLFORM_ARRAY, forms,
CURLFORM_END);
curl = curl_easy_init();
/* initialize custom header list (stating that Expect: 100-continue is not
wanted */
headerlist = curl_slist_append(headerlist, buf);
if(curl) {
/* what URL that receives this POST */
curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
curl_easy_setopt(curl, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, &cb_data);
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress_callback);
curl_easy_setopt(curl, CURLOPT_USERAGENT, userAgent);
curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
gettimeofday(&cb_data.starttime, NULL);
res = curl_easy_perform(curl);
/* cleanup */
curl_easy_cleanup(curl);
curl_formfree(formpost);
curl_slist_free_all (headerlist);
curl_global_cleanup();
free(data);
}
return 0;
}
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