Subsonic API: better compability with clients
This commit is contained in:
emeric
@@ -16,7 +16,8 @@
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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 "subsonic/SubsonicResource.hpp"
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#include "SubsonicResource.hpp"
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#include <atomic>
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#include <ctime>
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@@ -39,12 +40,14 @@
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#include "database/User.hpp"
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#include "recommendation/IEngine.hpp"
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#include "scrobbling/IScrobbling.hpp"
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#include "utils/IConfig.hpp"
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#include "utils/Logger.hpp"
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#include "utils/Random.hpp"
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#include "utils/Service.hpp"
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#include "utils/String.hpp"
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#include "utils/Utils.hpp"
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#include "ParameterParsing.hpp"
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#include "ProtocolVersion.hpp"
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#include "RequestContext.hpp"
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#include "Scan.hpp"
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#include "Stream.hpp"
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@@ -58,56 +61,18 @@ static const std::string reportedStarredDate {"2000-01-01T00:00:00"};
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static const std::string reportedDummyDate {"2000-01-01T00:00:00"};
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static const unsigned long long reportedDummyDateULong {946684800000ULL}; // 2000-01-01T00:00:00 UTC
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namespace API::Subsonic
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{
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struct ClientVersion
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{
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unsigned major {};
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unsigned minor {};
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unsigned patch {};
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};
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}
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namespace StringUtils
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{
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template<>
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std::optional<API::Subsonic::ClientVersion>
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readAs(std::string_view str)
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{
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// Expects "X.Y.Z"
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const auto numbers {StringUtils::splitString(str, ".")};
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if (numbers.size() < 2 || numbers.size() > 3)
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return std::nullopt;
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API::Subsonic::ClientVersion version;
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auto number {StringUtils::readAs<unsigned>(numbers[0])};
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if (!number)
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return std::nullopt;
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version.major = *number;
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number = {StringUtils::readAs<unsigned>(numbers[1])};
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if (!number)
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return std::nullopt;
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version.minor = *number;
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if (numbers.size() == 3)
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{
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number = {StringUtils::readAs<unsigned>(numbers[2])};
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if (!number)
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return std::nullopt;
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version.patch = *number;
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}
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return version;
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}
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}
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namespace API::Subsonic
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{
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std::unique_ptr<Wt::WResource>
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createSubsonicResource(Database::Db& db)
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{
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return std::make_unique<SubsonicResource>(db);
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}
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static
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void
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checkSetPasswordImplemented()
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@@ -140,38 +105,24 @@ decodePasswordIfNeeded(const std::string& password)
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return password;
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}
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struct ClientInfo
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{
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std::string name;
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std::string user;
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std::string password;
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ClientVersion version;
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};
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static
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ClientInfo
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getClientInfo(const Wt::Http::ParameterMap& parameters)
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std::unordered_map<std::string, ProtocolVersion>
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readConfigProtocolVersions()
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{
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ClientInfo res;
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std::unordered_map<std::string, ProtocolVersion> res;
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// Mandatory parameters
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res.name = getMandatoryParameterAs<std::string>(parameters, "c");
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res.version = getMandatoryParameterAs<ClientVersion>(parameters, "v");
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if (res.version.major > API_VERSION_MAJOR)
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throw ServerMustUpgradeError {};
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if (res.version.major < API_VERSION_MAJOR)
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throw ClientMustUpgradeError {};
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if (res.version.minor > Response::getAPIMinorVersion(res.name))
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throw ServerMustUpgradeError {};
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res.user = getMandatoryParameterAs<std::string>(parameters, "u");
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res.password = decodePasswordIfNeeded(getMandatoryParameterAs<std::string>(parameters, "p"));
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Service<IConfig>::get()->visitStrings("api-subsonic-report-old-server-protocol",
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[&](std::string_view client)
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{
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res.emplace(std::string {client}, ProtocolVersion {1, 12, 0});
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}, {"DSub"});
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return res;
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}
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SubsonicResource::SubsonicResource(Db& db)
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: _db {db}
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: _serverProtocolVersionsByClient {readConfigProtocolVersions()}
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, _db {db}
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{
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}
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@@ -530,7 +481,7 @@ static
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Response
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handlePingRequest(RequestContext& context)
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{
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -570,7 +521,7 @@ handleChangePassword(RequestContext& context)
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throw UserNotAuthorizedError {};
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}
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -620,7 +571,7 @@ handleCreatePlaylistRequest(RequestContext& context)
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TrackListEntry::create(context.dbSession, track, tracklist );
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}
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -671,7 +622,7 @@ handleCreateUserRequest(RequestContext& context)
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throw UserNotAuthorizedError {};
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}
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -696,7 +647,7 @@ handleDeletePlaylistRequest(RequestContext& context)
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tracklist.remove();
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -717,14 +668,14 @@ handleDeleteUserRequest(RequestContext& context)
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user.remove();
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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Response
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handleGetLicenseRequest(RequestContext& context)
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{
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& licenseNode {response.createNode("license")};
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licenseNode.setAttribute("licenseExpires", "2025-09-03T14:46:43");
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@@ -750,7 +701,7 @@ handleGetRandomSongsRequest(RequestContext& context)
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auto tracks {Track::getAllRandom(context.dbSession, {}, size)};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& randomSongsNode {response.createNode("randomSongs")};
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for (const Track::pointer& track : tracks)
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@@ -839,7 +790,7 @@ handleGetAlbumListRequestCommon(const RequestContext& context, bool id3)
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else
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throw NotImplementedGenericError {};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& albumListNode {response.createNode(id3 ? "albumList2" : "albumList")};
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for (const Release::pointer& release : releases)
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@@ -879,7 +830,7 @@ handleGetAlbumRequest(RequestContext& context)
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if (!user)
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throw UserNotAuthorizedError {};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node releaseNode {releaseToResponseNode(release, context.dbSession, user, true /* id3 */)};
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auto tracks {release->getTracks()};
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@@ -908,7 +859,7 @@ handleGetArtistRequest(RequestContext& context)
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if (!user)
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throw UserNotAuthorizedError {};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node artistNode {artistToResponseNode(user, artist, true /* id3 */)};
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auto releases {artist->getReleases()};
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@@ -930,7 +881,7 @@ handleGetArtistInfoRequestCommon(RequestContext& context, bool id3)
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// Optional params
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std::size_t count {getParameterAs<std::size_t>(context.parameters, "count").value_or(20)};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& artistInfoNode {response.createNode(id3 ? "artistInfo2" : "artistInfo")};
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{
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@@ -986,7 +937,7 @@ static
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Response
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handleGetArtistsRequest(RequestContext& context)
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{
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& artistsNode {response.createNode("artists")};
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artistsNode.setAttribute("ignoredArticles", "");
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@@ -1040,7 +991,7 @@ handleGetMusicDirectoryRequest(RequestContext& context)
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if (!root && !artistId && !releaseId && !trackId)
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throw BadParameterGenericError {"id"};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& directoryNode {response.createNode("directory")};
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auto transaction {context.dbSession.createSharedTransaction()};
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@@ -1097,7 +1048,7 @@ static
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Response
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handleGetMusicFoldersRequest(RequestContext& context)
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{
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& musicFoldersNode {response.createNode("musicFolders")};
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Response::Node& musicFolderNode {musicFoldersNode.createArrayChild("musicFolder")};
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@@ -1111,7 +1062,7 @@ static
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Response
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handleGetGenresRequest(RequestContext& context)
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{
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& genresNode {response.createNode("genres")};
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@@ -1133,7 +1084,7 @@ static
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Response
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handleGetIndexesRequest(RequestContext& context)
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{
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& artistsNode {response.createNode("indexes")};
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artistsNode.setAttribute("ignoredArticles", "");
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@@ -1216,7 +1167,7 @@ handleGetSimilarSongsRequestCommon(RequestContext& context, bool id3)
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Random::shuffleContainer(tracks);
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& similarSongsNode {response.createNode(id3 ? "similarSongs2" : "similarSongs")};
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for (const Track::pointer& track : tracks)
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similarSongsNode.addArrayChild("song", trackToResponseNode(track, context.dbSession, user));
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@@ -1248,7 +1199,7 @@ handleGetStarredRequestCommon(RequestContext& context, bool id3)
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if (!user)
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throw UserNotAuthorizedError {};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& starredNode {response.createNode(id3 ? "starred2" : "starred")};
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{
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@@ -1324,7 +1275,7 @@ handleGetPlaylistRequest(RequestContext& context)
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if (!tracklist)
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throw RequestedDataNotFoundError {};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node playlistNode {tracklistToResponseNode(tracklist, context.dbSession)};
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auto entries {tracklist->getEntries()};
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@@ -1346,7 +1297,7 @@ handleGetPlaylistsRequest(RequestContext& context)
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if (!user)
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throw UserNotAuthorizedError {};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& playlistsNode {response.createNode("playlists")};
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auto tracklists {TrackList::getAll(context.dbSession, user, TrackList::Type::Playlist)};
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@@ -1383,7 +1334,7 @@ handleGetSongsByGenreRequest(RequestContext& context)
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if (!user)
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throw UserNotAuthorizedError {};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& songsByGenreNode {response.createNode("songsByGenre")};
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bool more;
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@@ -1408,7 +1359,7 @@ handleGetUserRequest(RequestContext& context)
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if (!user)
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throw RequestedDataNotFoundError {};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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response.addNode("user", userToResponseNode(user));
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return response;
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@@ -1420,7 +1371,7 @@ handleGetUsersRequest(RequestContext& context)
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{
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auto transaction {context.dbSession.createSharedTransaction()};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& usersNode {response.createNode("users")};
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const auto users {User::getAll(context.dbSession)};
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@@ -1453,7 +1404,7 @@ handleSearchRequestCommon(RequestContext& context, bool id3)
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if (!user)
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throw UserNotAuthorizedError {};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& searchResult2Node {response.createNode(id3 ? "searchResult3" : "searchResult2")};
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bool more;
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@@ -1538,7 +1489,7 @@ handleStarRequest(RequestContext& context)
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user.modify()->starTrack(track);
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}
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -1595,7 +1546,7 @@ handleUnstarRequest(RequestContext& context)
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}
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -1639,7 +1590,7 @@ handleScrobble(RequestContext& context)
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}
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}
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -1682,7 +1633,7 @@ handleUpdateUserRequest(RequestContext& context)
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}
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}
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -1741,7 +1692,7 @@ handleUpdatePlaylistRequest(RequestContext& context)
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TrackListEntry::create(context.dbSession, track, tracklist);
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}
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -1756,7 +1707,7 @@ handleGetBookmarks(RequestContext& context)
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const auto bookmarks {TrackBookmark::getByUser(context.dbSession, user)};
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Response response {Response::createOkResponse(context)};
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Response response {Response::createOkResponse(context.serverProtocolVersion)};
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Response::Node& bookmarksNode {response.createNode("bookmarks")};
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for (const TrackBookmark::pointer& bookmark : bookmarks)
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@@ -1798,7 +1749,7 @@ handleCreateBookmark(RequestContext& context)
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if (comment)
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bookmark.modify()->setComment(*comment);
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -1824,7 +1775,7 @@ handleDeleteBookmark(RequestContext& context)
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bookmark.remove();
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return Response::createOkResponse(context);
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return Response::createOkResponse(context.serverProtocolVersion);
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}
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static
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@@ -1867,7 +1818,7 @@ struct RequestEntryPointInfo
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CheckImplementedFunc checkFunc {};
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};
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static std::unordered_map<std::string, RequestEntryPointInfo> requestEntryPoints
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static const std::unordered_map<std::string, RequestEntryPointInfo> requestEntryPoints
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{
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// System
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{"ping", {handlePingRequest}},
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@@ -1981,38 +1932,6 @@ static std::unordered_map<std::string, MediaRetrievalHandlerFunc> mediaRetrieval
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{"getCoverArt", handleGetCoverArt},
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};
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static
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Database::UserId
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authenticateUser(const Wt::Http::Request &request, const ClientInfo& clientInfo, Session& dbSession)
|
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{
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if (auto *authEnvService {Service<::Auth::IEnvService>::get()})
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{
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const auto checkResult {authEnvService->processRequest(dbSession, request)};
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if (checkResult.state != ::Auth::IEnvService::CheckResult::State::Granted)
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throw UserNotAuthorizedError {};
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return *checkResult.userId;
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}
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else if (auto *authPasswordService {Service<::Auth::IPasswordService>::get()})
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{
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const auto checkResult {authPasswordService->checkUserPassword(dbSession,
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boost::asio::ip::address::from_string(request.clientAddress()),
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clientInfo.user, clientInfo.password)};
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switch (checkResult.state)
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{
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case Auth::IPasswordService::CheckResult::State::Granted:
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return *checkResult.userId;
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break;
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case Auth::IPasswordService::CheckResult::State::Denied:
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throw WrongUsernameOrPasswordError {};
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case Auth::IPasswordService::CheckResult::State::Throttled:
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throw LoginThrottledGenericError {};
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}
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}
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|
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throw InternalErrorGenericError {"No service avalaible to authenticate user"};
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}
|
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|
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void
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SubsonicResource::handleRequest(const Wt::Http::Request &request, Wt::Http::Response &response)
|
||||
@@ -2027,24 +1946,16 @@ SubsonicResource::handleRequest(const Wt::Http::Request &request, Wt::Http::Resp
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if (StringUtils::stringEndsWith(requestPath, ".view"))
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requestPath.resize(requestPath.length() - 5);
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const Wt::Http::ParameterMap& parameters {request.getParameterMap()};
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// Optional parameters
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const ResponseFormat format {getParameterAs<std::string>(parameters, "f").value_or("xml") == "json" ? ResponseFormat::json : ResponseFormat::xml};
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const ResponseFormat format {getParameterAs<std::string>(request.getParameterMap(), "f").value_or("xml") == "json" ? ResponseFormat::json : ResponseFormat::xml};
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std::string clientName;
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ProtocolVersion protocolVersion {defaultServerProtocolVersion};
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try
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{
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// Mandatory parameters
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const ClientInfo clientInfo {getClientInfo(parameters)};
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clientName = clientInfo.name;
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Session& dbSession {_db.getTLSSession()};
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const Database::UserId userId {authenticateUser(request, clientInfo, dbSession)};
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RequestContext requestContext {parameters, dbSession, userId, clientInfo.name};
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// We need to parse client a soon as possible to make sure to answer with the right protocol version
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protocolVersion = getServerProtocolVersion(getMandatoryParameterAs<std::string>(request.getParameterMap(), "c"));
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RequestContext requestContext {buildRequestContext(request)};
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auto itEntryPoint {requestEntryPoints.find(requestPath)};
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if (itEntryPoint != requestEntryPoints.end())
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@@ -2079,11 +1990,97 @@ SubsonicResource::handleRequest(const Wt::Http::Request &request, Wt::Http::Resp
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LMS_LOG(API_SUBSONIC, ERROR) << "Error while processing request '" << requestPath << "'"
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<< ", params = [" << parameterMapToDebugString(request.getParameterMap()) << "]"
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<< ", code = " << static_cast<int>(e.getCode()) << ", msg = '" << e.getMessage() << "'";
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Response resp {Response::createFailedResponse(clientName, e)};
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Response resp {Response::createFailedResponse(protocolVersion, e)};
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resp.write(response.out(), format);
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response.setMimeType(ResponseFormatToMimeType(format));
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}
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}
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ProtocolVersion
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SubsonicResource::getServerProtocolVersion(const std::string& clientName) const
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{
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auto it {_serverProtocolVersionsByClient.find(clientName)};
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if (it == std::cend(_serverProtocolVersionsByClient))
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return defaultServerProtocolVersion;
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return it->second;
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}
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void
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SubsonicResource::checkProtocolVersion(ProtocolVersion client, ProtocolVersion server)
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{
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if (client.major > server.major)
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throw ServerMustUpgradeError {};
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if (client.major < server.major)
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throw ClientMustUpgradeError {};
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if (client.minor > server.minor)
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throw ServerMustUpgradeError {};
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else if (client.minor == server.minor)
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{
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if (client.patch > server.patch)
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throw ServerMustUpgradeError {};
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}
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}
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ClientInfo
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SubsonicResource::getClientInfo(const Wt::Http::ParameterMap& parameters)
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{
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ClientInfo res;
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// Mandatory parameters
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res.name = getMandatoryParameterAs<std::string>(parameters, "c");
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res.version = getMandatoryParameterAs<ProtocolVersion>(parameters, "v");
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res.user = getMandatoryParameterAs<std::string>(parameters, "u");
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res.password = decodePasswordIfNeeded(getMandatoryParameterAs<std::string>(parameters, "p"));
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return res;
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}
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RequestContext
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SubsonicResource::buildRequestContext(const Wt::Http::Request& request)
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{
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const Wt::Http::ParameterMap& parameters {request.getParameterMap()};
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const ClientInfo clientInfo {getClientInfo(parameters)};
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Session& dbSession {_db.getTLSSession()};
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const Database::UserId userId {authenticateUser(request, clientInfo, dbSession)};
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return {parameters, dbSession, userId, clientInfo, getServerProtocolVersion(clientInfo.name)};
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}
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Database::UserId
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SubsonicResource::authenticateUser(const Wt::Http::Request& request, const ClientInfo& clientInfo, Session& dbSession)
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{
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if (auto *authEnvService {Service<::Auth::IEnvService>::get()})
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{
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const auto checkResult {authEnvService->processRequest(dbSession, request)};
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if (checkResult.state != ::Auth::IEnvService::CheckResult::State::Granted)
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throw UserNotAuthorizedError {};
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return *checkResult.userId;
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}
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else if (auto *authPasswordService {Service<::Auth::IPasswordService>::get()})
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{
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||||
const auto checkResult {authPasswordService->checkUserPassword(dbSession,
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boost::asio::ip::address::from_string(request.clientAddress()),
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clientInfo.user, clientInfo.password)};
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||||
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||||
switch (checkResult.state)
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||||
{
|
||||
case Auth::IPasswordService::CheckResult::State::Granted:
|
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return *checkResult.userId;
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||||
break;
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||||
case Auth::IPasswordService::CheckResult::State::Denied:
|
||||
throw WrongUsernameOrPasswordError {};
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case Auth::IPasswordService::CheckResult::State::Throttled:
|
||||
throw LoginThrottledGenericError {};
|
||||
}
|
||||
}
|
||||
|
||||
throw InternalErrorGenericError {"No service avalaible to authenticate user"};
|
||||
}
|
||||
|
||||
} // namespace api::subsonic
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||||
|
||||
|
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