376 lines
11 KiB
C++
376 lines
11 KiB
C++
/*
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* Copyright (C) 2013 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <algorithm> // std::min
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#include <boost/locale.hpp>
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#include <boost/uuid/sha1.hpp>
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#include <boost/foreach.hpp>
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#include "logger/Logger.hpp"
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#include "AudioCollectionRequestHandler.hpp"
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#include "database/Types.hpp"
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#include "cover/CoverArtGrabber.hpp"
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namespace Remote {
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namespace Server {
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using namespace Database;
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AudioCollectionRequestHandler::AudioCollectionRequestHandler(Database::Handler& db)
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: _db(db)
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{}
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bool
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AudioCollectionRequestHandler::process(const AudioCollectionRequest& request, AudioCollectionResponse& response)
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{
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bool res = false;
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switch (request.type())
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{
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case AudioCollectionRequest::TypeGetRevision:
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// No payload
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res = processGetRevision(*response.mutable_revision());
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if (res)
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response.set_type(AudioCollectionResponse::TypeRevision);
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break;
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case AudioCollectionRequest::TypeGetGenreList:
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if (request.has_get_genres())
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{
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res = processGetGenres(request.get_genres(), *response.mutable_genre_list());
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if (res)
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response.set_type(AudioCollectionResponse::TypeArtistList);
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}
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else
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LMS_LOG(MOD_REMOTE, SEV_ERROR) << "Bad AudioCollectionRequest::TypeGetGenreList";
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break;
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case AudioCollectionRequest::TypeGetArtistList:
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if (request.has_get_artists())
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{
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res = processGetArtists(request.get_artists(), *response.mutable_artist_list());
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if (res)
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response.set_type(AudioCollectionResponse::TypeArtistList);
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}
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else
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LMS_LOG(MOD_REMOTE, SEV_ERROR) << "Bad AudioCollectionRequest::TypeGetArtistList message!";
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break;
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case AudioCollectionRequest::TypeGetReleaseList:
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if (request.has_get_releases())
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{
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res = processGetReleases(request.get_releases(), *response.mutable_release_list());
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if (res)
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response.set_type(AudioCollectionResponse::TypeReleaseList);
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}
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else
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LMS_LOG(MOD_REMOTE, SEV_ERROR) << "Bad AudioCollectionRequest::TypeGetReleaseList message!";
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break;
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case AudioCollectionRequest::TypeGetTrackList:
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if (request.has_get_tracks())
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{
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res = processGetTracks(request.get_tracks(), *response.mutable_track_list());
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if (res)
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response.set_type(AudioCollectionResponse::TypeTrackList);
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}
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else
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LMS_LOG(MOD_REMOTE, SEV_ERROR) << "Bad AudioCollectionRequest::TypeGetTrackList message!";
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break;
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case AudioCollectionRequest::TypeGetCoverArt:
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if (request.has_get_cover_art())
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res = processGetCoverArt(request.get_cover_art(), response);
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else
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LMS_LOG(MOD_REMOTE, SEV_ERROR) << "Bad AudioCollectionRequest::TypeGetCoverArt message!";
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break;
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default:
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LMS_LOG(MOD_REMOTE, SEV_ERROR) << "Unhandled AudioCollectionRequest_Type = " << request.type();
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}
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return res;
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}
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bool
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AudioCollectionRequestHandler::processGetGenres(const AudioCollectionRequest::GetGenreList& request, AudioCollectionResponse::GenreList& response)
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{
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// sanity checks
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if (!request.has_batch_parameter())
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{
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LMS_LOG(MOD_REMOTE, SEV_ERROR) << "No batch parameters found!";
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return false;
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}
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std::size_t size = request.batch_parameter().size();
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if (!size)
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size = _maxListArtists;
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size = std::min(size, _maxListArtists);
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Wt::Dbo::Transaction transaction( _db.getSession() );
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Wt::Dbo::collection<Database::Genre::pointer> genres = Database::Genre::getAll( _db.getSession(), request.batch_parameter().offset(), static_cast<int>(size));
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typedef Wt::Dbo::collection< Database::Genre::pointer > Genres;
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for (Genres::const_iterator it = genres.begin(); it != genres.end(); ++it)
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{
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AudioCollectionResponse_Genre* genre = response.add_genres();
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genre->set_name( std::string( boost::locale::conv::to_utf<char>((*it)->getName(), "UTF-8") ) );
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}
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return true;
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}
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bool
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AudioCollectionRequestHandler::processGetArtists(const AudioCollectionRequest::GetArtistList& request, AudioCollectionResponse::ArtistList& response)
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{
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// sanity checks
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if (!request.has_batch_parameter())
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{
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LMS_LOG(MOD_REMOTE, SEV_ERROR) << "No batch parameters found!";
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return false;
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}
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std::size_t size = request.batch_parameter().size();
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if (!size)
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size = _maxListArtists;
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size = std::min(size, _maxListArtists);
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SearchFilter filter;
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// Get filters
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std::vector<std::string> genres;
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for (int id = 0; id < request.genre_size(); ++id)
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filter.exactMatch[SearchFilter::Field::Genre].push_back( request.genre(id) );
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// Now fetch requested data...
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Wt::Dbo::Transaction transaction( _db.getSession() );
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std::vector<std::string> artists
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= Database::Track::getArtists(_db.getSession(), filter,
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request.batch_parameter().offset(), static_cast<int>(size) );
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BOOST_FOREACH(const std::string& artist, artists)
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response.add_artists()->set_name( std::string( boost::locale::conv::to_utf<char>(artist, "UTF-8") ) );
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return true;
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}
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bool
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AudioCollectionRequestHandler::processGetReleases(const AudioCollectionRequest::GetReleaseList& request, AudioCollectionResponse::ReleaseList& response)
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{
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// sanity checks
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if (!request.has_batch_parameter())
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{
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LMS_LOG(MOD_REMOTE, SEV_ERROR) << "No batch parameters found!";
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return false;
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}
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std::size_t size = request.batch_parameter().size();
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if (!size)
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size = _maxListReleases;
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size = std::min(size, _maxListReleases);
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SearchFilter filter;
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std::vector<std::string> artists;
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for (int id = 0; id < request.artist_size(); ++id)
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filter.exactMatch[SearchFilter::Field::Artist].push_back( request.artist(id) );
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std::vector<std::string> genres;
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for (int id = 0; id < request.genre_size(); ++id)
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filter.exactMatch[SearchFilter::Field::Genre].push_back( request.genre(id) );
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Wt::Dbo::Transaction transaction( _db.getSession() );
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std::vector<std::string> releases
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= Database::Track::getReleases( _db.getSession(), filter,
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request.batch_parameter().offset(), static_cast<int>(size));
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BOOST_FOREACH(const std::string& release, releases)
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{
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response.add_releases()->set_name( std::string( boost::locale::conv::to_utf<char>(release, "UTF-8")));
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}
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return true;
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}
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bool
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AudioCollectionRequestHandler::processGetTracks(const AudioCollectionRequest::GetTrackList& request, AudioCollectionResponse::TrackList& response)
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{
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// sanity checks
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if (!request.has_batch_parameter())
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{
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LMS_LOG(MOD_REMOTE, SEV_ERROR) << "No batch parameters found!";
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return false;
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}
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std::size_t size = request.batch_parameter().size();
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if (!size)
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size = _maxListTracks;
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size = std::min(size, _maxListTracks);
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// Get filters
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SearchFilter filter;
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std::vector<std::string> artists;
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for (int id = 0; id < request.artist_size(); ++id)
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filter.exactMatch[SearchFilter::Field::Artist].push_back( request.artist(id) );
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std::vector<std::string> releases;
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for (int id = 0; id < request.release_size(); ++id)
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filter.exactMatch[SearchFilter::Field::Release].push_back( request.release(id) );
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std::vector<std::string> genres;
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for (int id = 0; id < request.genre_size(); ++id)
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filter.exactMatch[SearchFilter::Field::Genre].push_back( request.genre(id) );
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Wt::Dbo::Transaction transaction( _db.getSession() );
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std::vector<Database::Track::pointer> tracks
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= Database::Track::getAll( _db.getSession(), filter,
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request.batch_parameter().offset(), static_cast<int>(size));
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BOOST_FOREACH(Database::Track::pointer track, tracks)
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{
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AudioCollectionResponse_Track* newTrack = response.add_tracks();
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newTrack->set_id(track.id());
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newTrack->set_disc_number( track->getDiscNumber() );
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newTrack->set_track_number( track->getTrackNumber() );
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newTrack->set_artist( track->getArtistName() );
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newTrack->set_release( track->getReleaseName() );
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newTrack->set_name( std::string( boost::locale::conv::to_utf<char>(track->getName(), "UTF-8") ) );
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newTrack->set_duration_secs( track->getDuration().total_seconds() );
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// Only send the year part of the release times
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if (!track->getDate().is_special())
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newTrack->set_release_date( std::to_string(track->getDate().date().year()) );
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if (!track->getOriginalDate().is_special())
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newTrack->set_original_release_date( std::to_string(track->getOriginalDate().date().year()) );
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BOOST_FOREACH(Database::Genre::pointer genre, track->getGenres())
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newTrack->add_genre( genre->getName() );
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}
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return true;
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}
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bool
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AudioCollectionRequestHandler::processGetCoverArt(const AudioCollectionRequest::GetCoverArt& request, AudioCollectionResponse& response)
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{
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bool res = false;
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response.set_type(AudioCollectionResponse::TypeCoverArt);
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std::vector<CoverArt::CoverArt> coverArts;
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switch(request.type())
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{
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case AudioCollectionRequest::GetCoverArt::TypeGetCoverArtRelease:
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if (request.has_release())
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{
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coverArts = CoverArt::Grabber::instance().getFromRelease( _db.getSession(), request.release());
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res = true;
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}
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break;
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case AudioCollectionRequest::GetCoverArt::TypeGetCoverArtTrack:
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if (request.has_track_id())
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{
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coverArts = CoverArt::Grabber::instance().getFromTrack(_db.getSession(), request.track_id());
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res = true;
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}
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break;
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}
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BOOST_FOREACH(CoverArt::CoverArt& coverArt, coverArts)
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{
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AudioCollectionResponse_CoverArt* cover_art = response.add_cover_art();
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if (request.has_size())
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{
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std::size_t size = request.size();
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if (size > _maxCoverArtSize || size == 0)
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size = _maxCoverArtSize;
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if (size < _minCoverArtSize)
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size = _minCoverArtSize;
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coverArt.scale(size);
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}
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cover_art->set_mime_type(coverArt.getMimeType());
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cover_art->set_data( std::string( coverArt.getData().begin(), coverArt.getData().end()) );
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}
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return res;
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}
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bool
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AudioCollectionRequestHandler::processGetRevision(AudioCollectionResponse::Revision& response)
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{
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bool res = false;
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Wt::Dbo::Transaction transaction( _db.getSession() );
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Database::MediaDirectorySettings::pointer settings = Database::MediaDirectorySettings::get( _db.getSession() );
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std::string hashStr = boost::posix_time::to_iso_string(settings->getLastUpdated());
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boost::uuids::detail::sha1 s;
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BOOST_FOREACH(const char c, hashStr)
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s.process_byte(c);
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unsigned int digest[5];
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s.get_digest(digest);
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std::ostringstream oss;
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for (std::size_t i = 0; i < 5; ++i)
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oss << std::hex << std::setfill('0') << std::setw(4) << digest[i];
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response.set_rev(oss.str());
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res = true;
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return res;
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}
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} // namespace Remote
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} // namespace Server
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