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#include <poddlthread.h>
#include <curl/curl.h>
#include <iostream>
#include <logger.h>
#include <config.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/utsname.h>
#include <unistd.h>
using namespace newsbeuter;
namespace podbeuter {
static size_t my_write_data(void *buffer, size_t size, size_t nmemb, void *userp);
static int progress_callback(void *clientp, double dltotal, double dlnow, double ultotal, double ulnow);
poddlthread::poddlthread(download * dl_, newsbeuter::configcontainer * c) : dl(dl_), cfg(c) {
}
poddlthread::~poddlthread() {
}
void poddlthread::run() {
gettimeofday(&tv1, NULL);
++bytecount;
CURL * easyhandle = curl_easy_init();
char user_agent[1024];
std::string ua_pref = cfg->get_configvalue("user-agent");
if (ua_pref.length() == 0) {
struct utsname buf;
uname(&buf);
snprintf(user_agent, sizeof(user_agent), "podbeuter/%s (%s %s; %s; %s) %s", PROGRAM_VERSION, buf.sysname, buf.release, buf.machine, PROGRAM_URL, curl_version());
} else {
snprintf(user_agent, sizeof(user_agent), "%s", ua_pref.c_str());
}
curl_easy_setopt(easyhandle, CURLOPT_USERAGENT, user_agent);
curl_easy_setopt(easyhandle, CURLOPT_URL, dl->url());
// set up write functions:
curl_easy_setopt(easyhandle, CURLOPT_WRITEFUNCTION, my_write_data);
curl_easy_setopt(easyhandle, CURLOPT_WRITEDATA, this);
// set up progress notification:
curl_easy_setopt(easyhandle, CURLOPT_NOPROGRESS, 0);
curl_easy_setopt(easyhandle, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(easyhandle, CURLOPT_PROGRESSFUNCTION, progress_callback);
curl_easy_setopt(easyhandle, CURLOPT_PROGRESSDATA, this);
struct stat sb;
if (stat(dl->filename(), &sb) == -1) {
GetLogger().log(LOG_INFO, "poddlthread::run: stat failed: starting normal download");
f.open(dl->filename(), std::fstream::out);
dl->set_offset(0);
} else {
GetLogger().log(LOG_INFO, "poddlthread::run: stat ok: starting download from %u", sb.st_size);
curl_easy_setopt(easyhandle, CURLOPT_RESUME_FROM, sb.st_size);
dl->set_offset(sb.st_size);
f.open(dl->filename(), std::fstream::out | std::fstream::app);
}
if (f.is_open()) {
dl->set_status(DL_DOWNLOADING);
CURLcode success = curl_easy_perform(easyhandle);
f.close();
GetLogger().log(LOG_INFO,"poddlthread::run: curl_easy_perform rc = %u", success);
if (0 == success)
dl->set_status(DL_FINISHED);
else if (dl->status() != DL_CANCELLED) {
dl->set_status(DL_FAILED);
::unlink(dl->filename());
}
} else {
dl->set_status(DL_FAILED);
}
curl_easy_cleanup(easyhandle);
}
static size_t my_write_data(void *buffer, size_t size, size_t nmemb, void *userp) {
poddlthread * thread = (poddlthread *)userp;
// std::cerr << "my_write_data(...," << size << "," << nmemb << ",...) called" << std::endl;
return thread->write_data(buffer, size, nmemb);
}
static int progress_callback(void *clientp, double dltotal, double dlnow, double /* ultotal */, double /*ulnow*/) {
poddlthread * thread = (poddlthread *)clientp;
// std::cerr << "progress_callback(...," << dltotal << "," << dlnow << ",...) called" << std::endl;
return thread->progress(dlnow, dltotal);
}
size_t poddlthread::write_data(void * buffer, size_t size, size_t nmemb) {
if (dl->status() == DL_CANCELLED)
return 0;
f.write(static_cast<char *>(buffer), size * nmemb);
bytecount += (size * nmemb);
return f.bad() ? 0 : size * nmemb;
}
int poddlthread::progress(double dlnow, double dltotal) {
if (dl->status() == DL_CANCELLED)
return -1;
gettimeofday(&tv2, NULL);
double kbps = compute_kbps();
if (kbps > 9999.99) {
kbps = 0.0;
gettimeofday(&tv1, NULL);
bytecount = 0;
}
dl->set_kbps(kbps);
dl->set_progress(dlnow, dltotal);
return 0;
}
double poddlthread::compute_kbps() {
double result = 0.0;
double t1 = tv1.tv_sec + (tv1.tv_usec/(double)1000000);
double t2 = tv2.tv_sec + (tv2.tv_usec/(double)1000000);
result = (bytecount / (t2 - t1))/1024;
return result;
}
}
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