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#include "pictureCache.h"
#include <Poco/Format.h>
#include <Poco/URIStreamOpener.h>
#include <Poco/StreamCopier.h>
#include <Poco/Path.h>
#include <Poco/File.h>
#include <Poco/StringTokenizer.h>
#include <Poco/URI.h>
#include <Poco/Exception.h>
#include "plexSdOsd.h"
#include "PVideo.h"
#include "Directory.h"
#include "plexgdm.h"
#include "PlexServer.h"
using Poco::URIStreamOpener;
using Poco::StreamCopier;
using Poco::Path;
using Poco::Exception;
cPictureCache::cPictureCache()
{
m_cacheDir = cPlugin::CacheDirectory(PLUGIN_NAME_I18N);
Poco::Path path(m_cacheDir);
Poco::File f(path.toString());
f.createDirectories();
m_bAllInvalidated = false;
}
void cPictureCache::Action()
{
while(Running()) {
while (m_qImagesToLoad.size() > 0) {
CacheInfo info = m_qImagesToLoad.front();
m_qImagesToLoad.pop_front();
std::string transcodeUri = TranscodeUri(info.uri, info.width, info.height);
std::string file = FileName(info.uri, info.width);
bool ok = true;
if(!Cached(info.uri, info.width)) {
ok = DownloadFileAndSave(transcodeUri, file);
}
if(ok) {
LOCK_THREAD;
if (!m_bAllInvalidated && info.onCached && info.calle && info.calle->IsVisible()) {
info.onCached(info.calle);
}
}
cCondWait::SleepMs(5);
}
cCondWait::SleepMs(100);
}
}
bool cPictureCache::DownloadFileAndSave(std::string Uri, std::string localFile)
{
try {
Poco::URI fileUri(Uri);
plexclient::PlexServer* pServer = plexclient::plexgdm::GetInstance().GetServer(fileUri.getHost(), fileUri.getPort());
Poco::Net::HTTPResponse response;
bool ok;
std::istream &rs = pServer->MakeRequest(response, ok, fileUri.getPathAndQuery());
if (!ok)
return false;
std::string type = response.getContentType();
std::string fileName = localFile;
// check filetype
char buffer[2];
rs.read(buffer, 2);
bool isPng = false;
if(buffer[0] == char(0x89) && buffer[1] == char(0x50) ) {
isPng = true;
}
rs.putback(buffer[1]);
rs.putback(buffer[0]);
if(isPng) {
fileName += ".png";
} else if(type == "image/jpeg" || fileUri.getPathAndQuery().find(".jpg") != std::string::npos) {
fileName += ".jpg";
}
Poco::Path p(fileName);
Poco::File f(p.makeParent().toString());
f.createDirectories();
std::ofstream outFile;
outFile.open(fileName);
Poco::StreamCopier::copyStream(rs, outFile);
outFile.close();
return true;
} catch (Poco::Exception &exc) {
return false;
}
}
std::string cPictureCache::FileName(std::string uri, int width)
{
Poco::URI u(uri);
plexclient::PlexServer* pServer = plexclient::plexgdm::GetInstance().GetServer(u.getHost(), u.getPort());
std::string uuid = "default";
if(pServer && !pServer->GetUuid().empty()) {
uuid = pServer->GetUuid();
}
std::string file = Poco::format("%s/%s_%d", uuid, u.getPathAndQuery(), width);
Poco::Path path(m_cacheDir);
path.append(file);
return path.toString();
}
std::string cPictureCache::TranscodeUri(std::string uri, int width, int height)
{
// We have to transform the uri a little...
// httpX://ServerUri/.../queryUri=localhost
Poco::URI u(uri);
auto plServer = plexclient::plexgdm::GetInstance().GetServer(u.getHost(), u.getPort());
u.setHost("127.0.0.1"); // set to localhost and http only!
u.setScheme("http");
Poco::URI serverUri(plServer->GetUri());
serverUri.setPath("/photo/:/transcode");
serverUri.addQueryParameter("width", std::to_string(width));
serverUri.addQueryParameter("height", std::to_string(height));
serverUri.addQueryParameter("url", u.toString());
return serverUri.toString();
}
bool cPictureCache::Cached(std::string uri, int width)
{
return Poco::File(FileName(uri, width) + ".jpg").exists() || Poco::File(FileName(uri, width) + ".png").exists();
}
std::string cPictureCache::GetPath(std::string uri, int width, int height, bool& cached, std::function<void(cGridElement*)> OnCached, cGridElement* calle)
{
m_bAllInvalidated = false;
cached = Cached(uri, width);
std::string file = FileName(uri, width);
if(cached) {
if(Poco::File(FileName(uri, width) + ".jpg").exists()) {
file += ".jpg";
} else if(Poco::File(FileName(uri, width) + ".png").exists()) {
file += ".png";
}
return file;
} else {
CacheInfo info(uri, width, height, OnCached, calle);
m_qImagesToLoad.push_back(info);
}
return file;
}
void cPictureCache::Stop()
{
Cancel();
}
void cPictureCache::Remove(cGridElement* element)
{
if(!element) return;
if (auto video = dynamic_cast<plexclient::Video*>(element)) {
Remove(video->ThumbUri());
Remove(video->ArtUri());
}
}
void cPictureCache::Remove(std::string uri)
{
LOCK_THREAD;
for(std::deque<CacheInfo>::iterator it = m_qImagesToLoad.begin() ; it != m_qImagesToLoad.end(); ++it) {
if(it->uri == uri) {
m_qImagesToLoad.erase(it);
return;
}
}
}
void cPictureCache::RemoveAll()
{
LOCK_THREAD;
m_bAllInvalidated = true;
m_qImagesToLoad.clear();
}
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