Files
neutrino/src/system/ytcache.cpp
2017-03-05 17:06:22 +01:00

416 lines
10 KiB
C++

/*
ytcache.cpp -- cache youtube movies
Copyright (C) 2013 martii
License: GPL
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "ytcache.h"
#include <OpenThreads/ScopedLock>
#include <stdio.h>
#include <unistd.h>
#include <curl/curl.h>
#include <curl/easy.h>
#if LIBCURL_VERSION_NUM < 0x071507
#include <curl/types.h>
#endif
#define URL_TIMEOUT 3600
#include "helpers.h"
#include "settings.h"
#include "set_threadname.h"
#include <global.h>
#include <driver/display.h>
static cYTCache *instance = NULL;
cYTCache::cYTCache(void)
{
cancelled = false;
thread = 0;
}
cYTCache::~cYTCache(void)
{
instance = NULL;
}
cYTCache *cYTCache::getInstance(void)
{
if (!instance)
instance = new cYTCache();
return instance;
}
std::string cYTCache::getName(MI_MOVIE_INFO *mi, std::string ext)
{
switch (mi->source) {
case MI_MOVIE_INFO::YT:
return g_settings.downloadcache_dir + "/" + mi->ytid + "-" + to_string(mi->ytitag) + "." + ext;
case MI_MOVIE_INFO::NK:
return g_settings.downloadcache_dir + "/nk-" + mi->ytid + "." + ext;
default:
return g_settings.downloadcache_dir + "/error-" + mi->ytid + "." + ext;;
}
}
bool cYTCache::getNameIfExists(std::string &fname, const std::string &id, int itag, std::string ext)
{
std::string f = g_settings.downloadcache_dir + "/" + id + "-" + to_string(itag) + "." + ext;
if (access(f, R_OK))
return false;
fname = f;
return true;
}
bool cYTCache::useCachedCopy(MI_MOVIE_INFO *mi)
{
std::string file = getName(mi);
if (access(file, R_OK))
return false;
std::string xml = getName(mi, "xml");
if (!access(xml, R_OK)) {
mi->file.Url = file;
return true;
}
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
if (pending.empty())
return false;
MI_MOVIE_INFO m = pending.front();
if (compareMovieInfo(&m, mi)) {
mi->file.Url = file;
return true;
}
}
return false;
}
int cYTCache::curlProgress(void *clientp, double dltotal, double dlnow, double /*ultotal*/, double /*ulnow*/)
{
cYTCache *caller = (cYTCache *) clientp;
caller->dltotal = dltotal;
caller->dlnow = dlnow;
if (caller->cancelled)
return 1;
return 0;
}
bool cYTCache::download(MI_MOVIE_INFO *mi)
{
std::string file = getName(mi);
std::string xml = getName(mi, "xml");
if (!access(file, R_OK) && !access(xml, R_OK)) {
fprintf(stderr, "%s: %s already present and valid\n", __func__, file.c_str());
return true;
}
FILE * fp = fopen(file.c_str(), "wb");
if (!fp) {
perror(file.c_str());
return false;
}
CURL *curl = curl_easy_init();
if (!curl) {
fclose(fp);
return false;
}
curl_easy_setopt(curl, CURLOPT_URL, mi->file.Url.c_str());
curl_easy_setopt(curl, CURLOPT_FILE, fp);
curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1);
curl_easy_setopt(curl, CURLOPT_TIMEOUT, URL_TIMEOUT);
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, (long)1);
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, cYTCache::curlProgress);
curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, this);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, (long)0);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
char cerror[CURL_ERROR_SIZE] = {0};
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, cerror);
if(!g_settings.softupdate_proxyserver.empty()) {
curl_easy_setopt(curl, CURLOPT_PROXY, g_settings.softupdate_proxyserver.c_str());
if(!g_settings.softupdate_proxyusername.empty()) {
std::string tmp = g_settings.softupdate_proxyusername + ":" + g_settings.softupdate_proxypassword;
curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, tmp.c_str());
}
}
dltotal = 0;
dlnow = 0;
dlstart = time(NULL);
fprintf (stderr, "downloading %s to %s\n", mi->file.Url.c_str(), file.c_str());
CURLcode res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
fclose(fp);
if (res) {
fprintf (stderr, "downloading %s to %s failed: %s\n", mi->file.Url.c_str(), file.c_str(), cerror);
unlink(file.c_str());
return false;
}
CMovieInfo cMovieInfo;
CFile File;
File.Name = xml;
cMovieInfo.saveMovieInfo(*mi, &File);
std::string thumbnail_dst = getName(mi, "jpg");
CFileHelpers fh;
fh.copyFile(mi->tfile.c_str(), thumbnail_dst.c_str(), 0644);
return true;
}
void *cYTCache::downloadThread(void *arg) {
fprintf(stderr, "%s starting\n", __func__);
set_threadname("ytdownload");
cYTCache *caller = (cYTCache *)arg;
//CVFD::getInstance()->ShowIcon(FP_ICON_DOWNLOAD, true);
while (caller->thread) {
MI_MOVIE_INFO mi;
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(caller->mutex);
if (caller->pending.empty()) {
caller->cancelled = false;
caller->thread = 0;
continue;
}
mi = caller->pending.front();
}
bool res = caller->download(&mi);
caller->cancelled = false;
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(caller->mutex);
if (res)
caller->completed.insert(caller->completed.begin(), mi);
else
caller->failed.insert(caller->failed.begin(), mi);
if (caller->pending.empty())
caller->thread = 0;
else
caller->pending.erase(caller->pending.begin());
}
}
//CVFD::getInstance()->ShowIcon(FP_ICON_DOWNLOAD, false);
fprintf(stderr, "%s exiting\n", __func__);
pthread_exit(NULL);
}
bool cYTCache::addToCache(MI_MOVIE_INFO *mi)
{
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
pending.push_back(*mi);
}
if (!thread) {
if (pthread_create(&thread, NULL, downloadThread, this)) {
perror("pthread_create");
return false;
}
pthread_detach(thread);
}
return true;
}
void cYTCache::cancel(MI_MOVIE_INFO *mi)
{
mutex.lock();
if (pending.empty())
return;
if (compareMovieInfo(mi, &pending.front())) {
cancelled = true;
mutex.unlock();
while (cancelled)
usleep(100000);
return;
} else {
for (std::vector<MI_MOVIE_INFO>::iterator it = pending.begin(); it != pending.end(); ++it)
if (compareMovieInfo(&(*it), mi)) {
pending.erase(it);
failed.push_back(*mi);
break;
}
}
mutex.unlock();
}
void cYTCache::remove(MI_MOVIE_INFO *mi)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
if (completed.empty())
return;
for (std::vector<MI_MOVIE_INFO>::iterator it = completed.begin(); it != completed.end(); ++it)
if (compareMovieInfo(&(*it), mi)) {
completed.erase(it);
unlink(getName(mi).c_str());
unlink(getName(mi, "xml").c_str());
unlink(getName(mi, "jpg").c_str());
break;
}
}
void cYTCache::cancelAll(MI_MOVIE_INFO::miSource source)
{
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
if (pending.empty())
return;
if (pending.size() > 1)
for (std::vector<MI_MOVIE_INFO>::iterator it = pending.begin() + 1; it != pending.end();){
if ((*it).source == source) {
failed.push_back(*it);
it = pending.erase(it);
} else
++it;
}
if (pending.front().source != source)
return;
}
cancelled = true;
while (thread)
usleep(100000);
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
cancelled = false;
if (!pending.empty()) {
if (pthread_create(&thread, NULL, downloadThread, this)) {
perror("pthread_create");
return;
}
pthread_detach(thread);
}
}
}
std::vector<MI_MOVIE_INFO> cYTCache::getFailed(MI_MOVIE_INFO::miSource source)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
std::vector<MI_MOVIE_INFO> res;
for (std::vector<MI_MOVIE_INFO>::iterator it = failed.begin(); it != failed.end(); ++it)
if ((*it).source == source)
res.push_back(*it);
return res;
}
std::vector<MI_MOVIE_INFO> cYTCache::getCompleted(MI_MOVIE_INFO::miSource source)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
std::vector<MI_MOVIE_INFO> res;
for (std::vector<MI_MOVIE_INFO>::iterator it = completed.begin(); it != completed.end(); ++it)
if ((*it).source == source)
res.push_back(*it);
return res;
}
std::vector<MI_MOVIE_INFO> cYTCache::getPending(MI_MOVIE_INFO::miSource source, double *p_dltotal, double *p_dlnow, time_t *p_start)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
std::vector<MI_MOVIE_INFO> res;
for (std::vector<MI_MOVIE_INFO>::iterator it = pending.begin(); it != pending.end(); ++it)
if ((*it).source == source)
res.push_back(*it);
if (!res.empty() && pending.front().source == source) {
if (p_dltotal)
*p_dltotal = dltotal;
if (p_dlnow)
*p_dlnow = dlnow;
if (p_start)
*p_start = dlstart;
} else {
if (p_dltotal)
*p_dltotal = 0;
if (p_dlnow)
*p_dlnow = 0;
if (p_start)
*p_start = 0;
}
return res;
}
void cYTCache::clearFailed(MI_MOVIE_INFO *mi)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
if (mi) {
for (std::vector<MI_MOVIE_INFO>::iterator it = failed.begin(); it != failed.end(); ++it)
if (compareMovieInfo(&(*it), mi)) {
failed.erase(it);
break;
}
} else
failed.clear();
}
void cYTCache::clearCompleted(MI_MOVIE_INFO *mi)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
if (mi) {
for (std::vector<MI_MOVIE_INFO>::iterator it = completed.begin(); it != completed.end(); ++it)
if (compareMovieInfo(&(*it), mi)) {
completed.erase(it);
break;
}
} else
completed.clear();
}
void cYTCache::clearFailed(MI_MOVIE_INFO::miSource source)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
for (std::vector<MI_MOVIE_INFO>::iterator it = failed.begin(); it != failed.end();)
if ((*it).source == source)
it = failed.erase(it);
else
++it;
}
void cYTCache::clearCompleted(MI_MOVIE_INFO::miSource source)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(mutex);
for (std::vector<MI_MOVIE_INFO>::iterator it = completed.begin(); it != completed.end();)
if ((*it).source == source)
it = completed.erase(it);
else
++it;
}
bool cYTCache::compareMovieInfo(MI_MOVIE_INFO *a, MI_MOVIE_INFO *b)
{
return a->ytid == b->ytid && a->ytitag == b->ytitag && a->source == b->source;
}