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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;
}
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());
bool ok;
auto cSession = pServer->MakeRequest(ok, fileUri.getPathAndQuery());
Poco::Net::HTTPResponse response;
std::istream &rs = cSession->receiveResponse(response);
if (!ok || response.getStatus() != 200)
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) {
std::cout << exc.displayText() << std::endl;
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)
{
bool cached = true;
try {
cached = m_mCached.at(FileName(uri, width));
} catch (std::out_of_range) { }
bool onDisk = Poco::File(FileName(uri, width) + ".jpg").exists() || Poco::File(FileName(uri, width) + ".png").exists();
return onDisk && cached;
}
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 {
try {
m_mCached.at(file);
return file;
} catch (std::out_of_range) { }
std::string transcodeUri = TranscodeUri(uri, width, height);
m_mCached[file] = false;
m_vFutures.push_back(std::async(std::launch::async,
[&] (std::string tsUri, std::string fn, std::function<void(cGridElement*)> onCached, cGridElement* ca) {
bool ok = DownloadFileAndSave(tsUri, fn);
if(ok) {
m_mCached[fn] = true;
}
if (ok && onCached && ca && ca->IsVisible()) {
onCached(ca);
}
return;
},
transcodeUri, file, OnCached, calle) );
}
return file;
}
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