833840828

Build Type

gitlab-ci

Committed by Peter Grzybowski

Commit Message

chore: review fixes

Pull Request Pull Request #638: chore: moving to single db

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344 of 426 new or added lines in 5 files covered. (80.75%)

36 existing lines in 3 files now uncovered.

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88.61

/store/mongo/datastore_mongo.go

// Copyright 2023 Northern.tech AS
//
//    Licensed under the Apache License, Version 2.0 (the "License");
//    you may not use this file except in compliance with the License.
//    You may obtain a copy of the License at
//
//        http://www.apache.org/licenses/LICENSE-2.0
//
//    Unless required by applicable law or agreed to in writing, software
//    distributed under the License is distributed on an "AS IS" BASIS,
//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//    See the License for the specific language governing permissions and
//    limitations under the License.

package mongo

import (
        "context"
        "crypto/tls"
        "strings"
        "time"

        "github.com/mendersoftware/go-lib-micro/identity"
        "github.com/mendersoftware/go-lib-micro/log"
        "github.com/mendersoftware/go-lib-micro/mongo/migrate"
        "github.com/mendersoftware/go-lib-micro/mongo/oid"
        ctxstore "github.com/mendersoftware/go-lib-micro/store/v2"
        "github.com/pkg/errors"
        "go.mongodb.org/mongo-driver/bson"
        "go.mongodb.org/mongo-driver/mongo"
        mopts "go.mongodb.org/mongo-driver/mongo/options"

        "github.com/mendersoftware/deviceauth/jwt"
        "github.com/mendersoftware/deviceauth/model"
        "github.com/mendersoftware/deviceauth/store"
        uto "github.com/mendersoftware/deviceauth/utils/to"
)

const (
        DbVersion     = "2.0.0"
        DbName        = "deviceauth"
        DbDevicesColl = "devices"
        DbAuthSetColl = "auth_sets"
        DbTokensColl  = "tokens"
        DbLimitsColl  = "limits"

        DbKeyDeviceRevision = "revision"
        dbFieldID           = "_id"
        dbFieldTenantID     = "tenant_id"
        dbFieldIDDataSha    = "id_data_sha256"
        dbFieldStatus       = "status"
        dbFieldDeviceID     = "device_id"
        dbFieldPubKey       = "pubkey"
        dbFieldExpTime      = "exp.time"
        dbFieldTenantClaim  = "mender.tenant"
        dbFieldName         = "name"
)

var (
        indexDevices_IdentityData                       = "devices:IdentityData"
        indexDevices_IdentityDataSha256                 = "devices:IdentityDataSha256"
        indexDevices_Status                             = "devices:Status"
        indexAuthSet_DeviceId_IdentityData_PubKey       = "auth_sets:DeviceId:IdData:PubKey"
        indexAuthSet_DeviceId_IdentityDataSha256_PubKey = "auth_sets:IdDataSha256:PubKey"
        indexAuthSet_IdentityDataSha256_PubKey          = "auth_sets:NoDeviceId:IdDataSha256:PubKey"
)

type DataStoreMongoConfig struct {
        // connection string
        ConnectionString string

        // SSL support
        SSL           bool
        SSLSkipVerify bool

        // Overwrites credentials provided in connection string if provided
        Username string
        Password string
}

type DataStoreMongo struct {
        client      *mongo.Client
        automigrate bool
        multitenant bool
}

func NewDataStoreMongoWithClient(client *mongo.Client) *DataStoreMongo {
        return &DataStoreMongo{
                client: client,
        }
}

func NewDataStoreMongo(config DataStoreMongoConfig) (*DataStoreMongo, error) {
        if !strings.Contains(config.ConnectionString, "://") {
                config.ConnectionString = "mongodb://" + config.ConnectionString
        }
        clientOptions := mopts.Client().ApplyURI(config.ConnectionString)

        if config.Username != "" {
                clientOptions.SetAuth(mopts.Credential{
                        Username: config.Username,
                        Password: config.Password,
                })
        }

        if config.SSL {
                tlsConfig := &tls.Config{}
                tlsConfig.InsecureSkipVerify = config.SSLSkipVerify
                clientOptions.SetTLSConfig(tlsConfig)
        }
        ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
        defer cancel()

        client, err := mongo.Connect(ctx, clientOptions)
        if err != nil {
                return nil, errors.Wrap(err, "failed to create mongo client")
        }

        err = client.Ping(ctx, nil)
        if err != nil {
                return nil, errors.Wrap(err, "failed to verify mongodb connection")
        }

        return NewDataStoreMongoWithClient(client), nil
}

func (db *DataStoreMongo) ForEachTenant(
        ctx context.Context,
        mapFunc store.MapFunc,
) error {
        var (
                dbCtx   context.Context
                err     error
                errChan = make(chan error, 1)
        )
        tenantsIds, err := db.ListTenantsIds(ctx)
        if err != nil {
                return errors.Wrap(err, "store: failed to retrieve tenants")
        }
        go func() {
                for _, tenantID := range tenantsIds {
                        if ctx.Err() != nil {
                                return
                        }
                        if tenantID != "" {
                                dbCtx = identity.WithContext(ctx,
                                        &identity.Identity{
                                                Tenant: tenantID,
                                        },
                                )
                        } else {
                                dbCtx = ctx
                        }
                        err := mapFunc(dbCtx)
                        if err != nil {
                                errChan <- errors.Wrapf(err,
                                        `store: failed to apply mapFunc to tenant "%s"`,
                                        tenantID,
                                )
                        }
                }
                errChan <- nil
        }()

        select {
        case err = <-errChan:
        case <-ctx.Done():
                err = errors.Wrap(ctx.Err(),
                        "store: database operations stopped prematurely",
                )
        }
        return err
}

func (db *DataStoreMongo) Ping(ctx context.Context) error {
        return db.client.Ping(ctx, nil)
}

type DeviceFilter model.DeviceFilter

func (fltr DeviceFilter) MarshalBSON() (b []byte, err error) {
        doc := bson.D{}
        switch len(fltr.IDs) {
        case 0:
                break
        case 1:
                doc = append(doc, bson.E{Key: "_id", Value: fltr.IDs[0]})
        default:
                doc = append(doc, bson.E{
                        Key: "_id", Value: bson.D{{
                                Key: "$in", Value: fltr.IDs,
                        }},
                })
        }
        switch len(fltr.Status) {
        case 0:
                break
        case 1:
                doc = append(doc, bson.E{Key: "status", Value: fltr.Status[0]})
        default:
                doc = append(doc, bson.E{
                        Key: "status", Value: bson.D{{
                                Key: "$in", Value: fltr.Status,
                        }},
                })
        }

        return bson.Marshal(doc)
}

func (db *DataStoreMongo) GetDevices(
        ctx context.Context,
        skip,
        limit uint,
        filter model.DeviceFilter,
) ([]model.Device, error) {
        const MaxInt64 = int64(^uint64(1 << 63))
        var (
                res  = []model.Device{}
                fltr = DeviceFilter(filter)
        )
        collDevs := db.client.
                Database(DbName).
                Collection(DbDevicesColl)

        findOpts := mopts.Find().
                SetSort(bson.D{{Key: "_id", Value: 1}}).
                SetSkip(int64(skip) & MaxInt64)

        if limit > 0 {
                findOpts.SetLimit(int64(limit))
        }

        cursor, err := collDevs.Find(ctx, ctxstore.WithTenantID(ctx, fltr), findOpts)
        if err != nil {
                return nil, errors.Wrap(err, "failed to fetch device list")
        }
        if err := cursor.All(ctx, &res); err != nil {
                return nil, err
        }

        return res, nil
}

func (db *DataStoreMongo) StoreMigrationVersion(
        ctx context.Context,
        version *migrate.Version,
) error {
        if version == nil {
                return errors.New("version cant be nil.")
        }

        c := db.client.Database(DbName).
                Collection(migrate.DbMigrationsColl)

        migrationInfo := migrate.MigrationEntry{
                Version:   *version,
                Timestamp: time.Now(),
        }
        _, err := c.InsertOne(ctx, migrationInfo)
        return err
}

func (db *DataStoreMongo) GetDeviceById(ctx context.Context, id string) (*model.Device, error) {

        c := db.client.Database(DbName).Collection(DbDevicesColl)

        res := model.Device{}

        err := c.FindOne(ctx, ctxstore.WithTenantID(ctx, bson.M{"_id": id})).Decode(&res)

        if err != nil {
                if err == mongo.ErrNoDocuments {
                        return nil, store.ErrDevNotFound
                } else {
                        return nil, errors.Wrap(err, "failed to fetch device")
                }
        }

        return &res, nil
}

func (db *DataStoreMongo) GetDeviceByIdentityDataHash(
        ctx context.Context,
        idataHash []byte,
) (*model.Device, error) {
        c := db.client.Database(DbName).Collection(DbDevicesColl)

        filter := ctxstore.WithTenantID(ctx, bson.M{dbFieldIDDataSha: idataHash})
        res := model.Device{}

        err := c.FindOne(ctx, filter).Decode(&res)
        if err != nil {
                if err == mongo.ErrNoDocuments {
                        return nil, store.ErrDevNotFound
                } else {
                        return nil, errors.Wrap(err, "failed to fetch device")
                }
        }

        return &res, nil
}

func (db *DataStoreMongo) AddDevice(ctx context.Context, d model.Device) error {

        if d.Id == "" {
                uid := oid.NewUUIDv4()
                d.Id = uid.String()
        }

        id := identity.FromContext(ctx)
        tenantId := ""
        if id != nil {
                tenantId = id.Tenant
        }
        d.TenantID = tenantId

        c := db.client.Database(DbName).Collection(DbDevicesColl)

        if _, err := c.InsertOne(ctx, d); err != nil {
                if strings.Contains(err.Error(), "duplicate key error") {
                        return store.ErrObjectExists
                }
                return errors.Wrap(err, "failed to store device")
        }
        return nil
}

func (db *DataStoreMongo) UpdateDevice(ctx context.Context,
        deviceID string, updev model.DeviceUpdate) error {

        c := db.client.Database(DbName).Collection(DbDevicesColl)

        updev.UpdatedTs = uto.TimePtr(time.Now().UTC())
        update := bson.M{
                "$inc": bson.M{
                        DbKeyDeviceRevision: 1,
                },
                "$set": updev,
        }

        res, err := c.UpdateOne(ctx, ctxstore.WithTenantID(ctx, bson.M{"_id": deviceID}), update)
        if err != nil {
                return errors.Wrap(err, "failed to update device")
        } else if res.MatchedCount < 1 {
                return store.ErrDevNotFound
        }

        return nil
}

func (db *DataStoreMongo) DeleteDevice(ctx context.Context, id string) error {

        c := db.client.Database(DbName).Collection(DbDevicesColl)

        filter := ctxstore.WithTenantID(ctx, bson.M{"_id": id})
        result, err := c.DeleteOne(ctx, filter)
        if err != nil {
                return errors.Wrap(err, "failed to remove device")
        } else if result.DeletedCount < 1 {
                return store.ErrDevNotFound
        }

        return nil
}

func (db *DataStoreMongo) AddToken(ctx context.Context, t *jwt.Token) error {
        database := db.client.Database(DbName)
        collTokens := database.Collection(DbTokensColl)

        filter := bson.M{"_id": t.Claims.ID}
        update := bson.M{"$set": t}
        updateOpts := mopts.Update()
        updateOpts.SetUpsert(true)

        if _, err := collTokens.UpdateOne(
                ctx, filter, update, updateOpts,
        ); err != nil {
                return errors.Wrap(err, "failed to store token")
        }

        return nil
}

func (db *DataStoreMongo) GetToken(
        ctx context.Context,
        jti oid.ObjectID,
) (*jwt.Token, error) {

        c := db.client.Database(DbName).Collection(DbTokensColl)

        res := jwt.Token{}

        err := c.FindOne(ctx, bson.M{"_id": jti}).Decode(&res)
        if err != nil {
                if err == mongo.ErrNoDocuments {
                        return nil, store.ErrTokenNotFound
                } else {
                        return nil, errors.Wrap(err, "failed to fetch token")
                }
        }

        return &res, nil
}

func (db *DataStoreMongo) DeleteToken(ctx context.Context, jti oid.ObjectID) error {
        database := db.client.Database(DbName)
        collTokens := database.Collection(DbTokensColl)

        filter := bson.M{"_id": jti}
        result, err := collTokens.DeleteOne(ctx, filter)
        if err != nil {
                return errors.Wrap(err, "failed to remove token")
        } else if result.DeletedCount < 1 {
                return store.ErrTokenNotFound
        }

        return nil
}

func (db *DataStoreMongo) DeleteTokens(ctx context.Context) error {
        c := db.client.Database(DbName).
                Collection(DbTokensColl)

        id := identity.FromContext(ctx)
        filter := bson.M{}
        // I have some doubts in here: we are dropping all the tokens if
        // tenant claim in the JWT is empty
        if id != nil {
                if id.Tenant != "" {
                        filter = bson.M{dbFieldTenantClaim: id.Tenant}
                }
        }
        _, err := c.DeleteMany(ctx, filter)

        return err
}

func (db *DataStoreMongo) DeleteTokenByDevId(
        ctx context.Context,
        devID oid.ObjectID,
) error {
        c := db.client.Database(DbName).
                Collection(DbTokensColl)
        var filter interface{}
        id := identity.FromContext(ctx)
        if id != nil {
                // in here if mender.tenant is not set we will not match,
                // since there is no way to tell looking at id if we wanted empty Tenant
                // or nil. we could have either change AddToken or remove omitempty.
                if id.Tenant == "" {
                        filter = bson.M{
                                "$or": []bson.M{
                                        {"sub": devID},
                                        {
                                                "$and": []bson.M{
                                                        {"sub": devID},
                                                        {dbFieldTenantClaim: ""},
                                                },
                                        },
                                },
                        }
                } else {
                        filter = bson.D{
                                {Key: "sub", Value: devID},
                                {Key: dbFieldTenantClaim, Value: id.Tenant},
                        }
                }
        } else {
                filter = bson.M{"sub": devID}
        }
        ci, err := c.DeleteMany(ctx, filter)

        if err != nil {
                return errors.Wrap(err, "failed to remove tokens")
        }

        if ci.DeletedCount == 0 {
                return store.ErrTokenNotFound
        }

        return nil
}

func (db *DataStoreMongo) Migrate(ctx context.Context, version string) error {
        l := log.FromContext(ctx)

        dbs := []string{DbName}

        if db.multitenant {
                l.Infof("running migrations in multitenant mode")

                tdbs, err := migrate.GetTenantDbs(ctx, db.client, ctxstore.IsTenantDb(DbName))
                if err != nil {
                        return errors.Wrap(err, "failed go retrieve tenant DBs")
                }
                dbs = append(dbs, tdbs...)
        } else {
                l.Infof("running migrations in single tenant mode")
        }

        if db.automigrate {
                l.Infof("automigrate is ON, will apply migrations")
        } else {
                l.Infof("automigrate is OFF, will check db version compatibility")
        }

        for _, d := range dbs {
                // if not in multi tenant, then tenant will be "" and identity
                // will be the same as default
                tenant := ctxstore.TenantFromDbName(d, DbName)

                tenantCtx := identity.WithContext(ctx, &identity.Identity{
                        Tenant: tenant,
                })

                // TODO: we should aim to unify context usage across migrators and migrations
                // migrators use 'string' db name, migrations use DbFromContext
                // both should use one or the other; for now - just redundantly pass both ctx and db name
                err := db.MigrateTenant(tenantCtx, d, version)
                if err != nil {
                        return err
                }
        }

        return nil
}

func (db *DataStoreMongo) MigrateTenant(ctx context.Context, database, version string) error {
        l := log.FromContext(ctx)

        l.Infof("migrating %s", database)

        m := migrate.SimpleMigrator{
                Client:      db.client,
                Db:          database,
                Automigrate: db.automigrate,
        }

        migrations := []migrate.Migration{
                &migration_1_1_0{
                        ms:  db,
                        ctx: ctx,
                },
                &migration_1_2_0{
                        ms:  db,
                        ctx: ctx,
                },
                &migration_1_3_0{
                        ms:  db,
                        ctx: ctx,
                },
                &migration_1_4_0{
                        ms:  db,
                        ctx: ctx,
                },
                &migration_1_5_0{
                        ms:  db,
                        ctx: ctx,
                },
                &migration_1_6_0{
                        ms:  db,
                        ctx: ctx,
                },
                &migration_1_7_0{
                        ms:  db,
                        ctx: ctx,
                },
                &migration_1_8_0{
                        ds:  db,
                        ctx: ctx,
                },
                &migration_1_9_0{
                        ds:  db,
                        ctx: ctx,
                },
                &migration_1_10_0{
                        ds:  db,
                        ctx: ctx,
                },
                &migration_1_11_0{
                        ds:  db,
                        ctx: ctx,
                },
                &migration_2_0_0{
                        ds:  db,
                        ctx: ctx,
                },
        }

        ver, err := migrate.NewVersion(version)
        if err != nil {
                return errors.Wrap(err, "failed to parse service version")
        }

        err = m.Apply(ctx, *ver, migrations)
        if err != nil {
                return errors.Wrap(err, "failed to apply migrations")
        }

        return nil
}

func (db *DataStoreMongo) AddAuthSet(ctx context.Context, set model.AuthSet) error {
        c := db.client.Database(DbName).Collection(DbAuthSetColl)

        if set.Id == "" {
                uid := oid.NewUUIDv4()
                set.Id = uid.String()
        }
        id := identity.FromContext(ctx)
        tenantId := ""
        if id != nil {
                tenantId = id.Tenant
        }
        set.TenantID = tenantId

        if _, err := c.InsertOne(ctx, set); err != nil {
                if strings.Contains(err.Error(), "duplicate key error") {
                        return store.ErrObjectExists
                }
                return errors.Wrap(err, "failed to store device")
        }

        return nil
}

func (db *DataStoreMongo) GetAuthSetByIdDataHashKey(
        ctx context.Context,
        idDataHash []byte,
        key string,
) (*model.AuthSet, error) {
        c := db.client.Database(DbName).Collection(DbAuthSetColl)

        id := identity.FromContext(ctx)
        tenantId := ""
        if id != nil {
                tenantId = id.Tenant
        }

        filter := model.AuthSet{
                IdDataSha256: idDataHash,
                PubKey:       key,
                TenantID:     tenantId,
        }
        res := model.AuthSet{}

        err := c.FindOne(ctx, filter).Decode(&res)
        if err != nil {
                if err == mongo.ErrNoDocuments {
                        return nil, store.ErrAuthSetNotFound
                } else {
                        return nil, errors.Wrap(err, "failed to fetch authentication set")
                }
        }

        return &res, nil
}

func (db *DataStoreMongo) GetAuthSetById(
        ctx context.Context,
        auth_id string,
) (*model.AuthSet, error) {
        c := db.client.Database(DbName).Collection(DbAuthSetColl)

        res := model.AuthSet{}
        err := c.FindOne(ctx, ctxstore.WithTenantID(ctx, bson.M{"_id": auth_id})).Decode(&res)
        if err != nil {
                if err == mongo.ErrNoDocuments {
                        return nil, store.ErrAuthSetNotFound
                } else {
                        return nil, errors.Wrap(err, "failed to fetch authentication set")
                }
        }

        return &res, nil
}

func (db *DataStoreMongo) GetAuthSetsForDevice(
        ctx context.Context,
        devid string,
) ([]model.AuthSet, error) {
        c := db.client.Database(DbName).Collection(DbAuthSetColl)

        res := []model.AuthSet{}

        id := identity.FromContext(ctx)
        tenantId := ""
        if id != nil {
                tenantId = id.Tenant
        }
        cursor, err := c.Find(ctx, model.AuthSet{DeviceId: devid, TenantID: tenantId})
        if err != nil {
                return nil, err
        }
        if err = cursor.All(ctx, &res); err != nil {
                if err == mongo.ErrNoDocuments {
                        return nil, store.ErrAuthSetNotFound
                }
                return nil, errors.Wrap(err, "failed to fetch authentication sets")
        }

        return res, nil
}

func (db *DataStoreMongo) UpdateAuthSet(
        ctx context.Context,
        filter interface{},
        mod model.AuthSetUpdate,
) error {
        c := db.client.Database(DbName).Collection(DbAuthSetColl)

        update := bson.M{"$set": mod}

        if res, err := c.UpdateMany(ctx, ctxstore.WithTenantID(ctx, filter), update); err != nil {
                return errors.Wrap(err, "failed to update auth set")
        } else if res.MatchedCount == 0 {
                return store.ErrAuthSetNotFound
        }

        return nil
}

func (db *DataStoreMongo) UpdateAuthSetById(
        ctx context.Context,
        id string,
        mod model.AuthSetUpdate,
) error {
        c := db.client.Database(DbName).Collection(DbAuthSetColl)
        res, err := c.UpdateOne(ctx, ctxstore.WithTenantID(ctx, bson.M{"_id": id}), bson.M{"$set": mod})
        if err != nil {
                return errors.Wrap(err, "failed to update auth set")
        }
        if res.MatchedCount == 0 {
                return store.ErrAuthSetNotFound
        }

        return nil
}

func (db *DataStoreMongo) DeleteAuthSetsForDevice(ctx context.Context, devid string) error {
        c := db.client.Database(DbName).Collection(DbAuthSetColl)
        id := identity.FromContext(ctx)
        tenantId := ""
        if id != nil {
                tenantId = id.Tenant
        }

        ci, err := c.DeleteMany(
                ctx,
                model.AuthSet{
                        DeviceId: devid,
                        TenantID: tenantId,
                },
        )

        if err != nil {
                return errors.Wrap(err, "failed to remove authentication sets for device")
        }

        if ci.DeletedCount == 0 {
                return store.ErrAuthSetNotFound
        }

        return nil
}

func (db *DataStoreMongo) DeleteAuthSetForDevice(
        ctx context.Context,
        devId string,
        authId string,
) error {
        c := db.client.Database(DbName).Collection(DbAuthSetColl)

        id := identity.FromContext(ctx)
        tenantId := ""
        if id != nil {
                tenantId = id.Tenant
        }
        filter := model.AuthSet{Id: authId, DeviceId: devId, TenantID: tenantId}
        result, err := c.DeleteOne(ctx, filter)
        if err != nil {
                return errors.Wrap(err, "failed to remove authentication set for device")
        } else if result.DeletedCount < 1 {
                return store.ErrAuthSetNotFound
        }

        return nil
}

func (db *DataStoreMongo) WithMultitenant() *DataStoreMongo {
        db.multitenant = true
        return db
}

func (db *DataStoreMongo) WithAutomigrate() store.DataStore {
        return &DataStoreMongo{
                client:      db.client,
                automigrate: true,
        }
}

func (db *DataStoreMongo) PutLimit(ctx context.Context, lim model.Limit) error {
        if lim.Name == "" {
                return errors.New("empty limit name")
        }

        c := db.client.Database(DbName).Collection(DbLimitsColl)
        id := identity.FromContext(ctx)
        tenantId := ""
        if id != nil {
                tenantId = id.Tenant
        }

        lim.TenantID = tenantId
        query := ctxstore.WithTenantID(ctx, bson.M{dbFieldName: lim.Name})

        updateOptions := mopts.Update()
        updateOptions.SetUpsert(true)
        if _, err := c.UpdateOne(
                ctx, query, bson.M{"$set": lim}, updateOptions); err != nil {
                return errors.Wrap(err, "failed to set or update limit")
        }

        return nil
}

func (db *DataStoreMongo) DeleteLimit(ctx context.Context, lim string) error {
        if lim == "" {
                return errors.New("empty limit name")
        }

        c := db.client.Database(DbName).Collection(DbLimitsColl)

        query := ctxstore.WithTenantID(ctx, bson.M{dbFieldName: lim})

        if _, err := c.DeleteOne(ctx, query); err != nil {
                return errors.Wrap(err, "failed to delete limit")
        }

        return nil
}

func (db *DataStoreMongo) GetLimit(ctx context.Context, name string) (*model.Limit, error) {
        c := db.client.Database(DbName).Collection(DbLimitsColl)

        var lim model.Limit

        err := c.FindOne(ctx, ctxstore.WithTenantID(ctx, bson.M{dbFieldName: name})).Decode(&lim)

        if err != nil {
                if err == mongo.ErrNoDocuments {
                        return nil, store.ErrLimitNotFound
                } else {
                        return nil, errors.Wrap(err, "failed to fetch limit")
                }
        }

        return &lim, nil
}

func (db *DataStoreMongo) GetDevCountByStatus(ctx context.Context, status string) (int, error) {
        var (
                fltr     = bson.D{}
                devsColl = db.client.
                                Database(DbName).
                                Collection(DbDevicesColl)
        )

        if status != "" {
                fltr = bson.D{{Key: "status", Value: status}}
        }
        count, err := devsColl.CountDocuments(ctx, ctxstore.WithTenantID(ctx, fltr))
        if err != nil {
                return 0, err
        }
        return int(count), nil
}

func (db *DataStoreMongo) GetDeviceStatus(ctx context.Context, devId string) (string, error) {
        id := identity.FromContext(ctx)
        tenantId := ""
        if id != nil {
                tenantId = id.Tenant
        }
        return getDeviceStatusDB(db, DbName, tenantId, ctx, devId)
}

func getDeviceStatus(statuses map[string]int) (string, error) {
        if statuses[model.DevStatusAccepted] > 1 || statuses[model.DevStatusPreauth] > 1 {
                return "", store.ErrDevStatusBroken
        }

        if statuses[model.DevStatusAccepted] == 1 {
                return model.DevStatusAccepted, nil
        }

        if statuses[model.DevStatusPreauth] == 1 {
                return model.DevStatusPreauth, nil
        }

        if statuses[model.DevStatusPending] > 0 {
                return model.DevStatusPending, nil
        }

        if statuses[model.DevStatusRejected] > 0 {
                return model.DevStatusRejected, nil
        }

        return "", store.ErrDevStatusBroken
}

func getDeviceStatusDB(
        db *DataStoreMongo,
        dbName string,
        tenantId string,
        ctx context.Context,
        devId string,
) (string, error) {
        var statuses = map[string]int{}

        c := db.client.Database(dbName).Collection(DbAuthSetColl)

        filter := model.AuthSet{
                DeviceId: devId,
        }
        if tenantId != "" {
                filter.TenantID = tenantId
        }

        match := bson.D{
                {Key: "$match", Value: filter},
        }
        group := bson.D{
                {Key: "$group", Value: bson.D{
                        {Key: "_id", Value: "$status"},
                        {Key: "count", Value: bson.M{"$sum": 1}}},
                },
        }

        pipeline := []bson.D{
                match,
                group,
        }
        var result []struct {
                Status string `bson:"_id"`
                Value  int    `bson:"count"`
        }
        cursor, err := c.Aggregate(ctx, pipeline)
        if err != nil {
                return "", err
        }
        if err := cursor.All(ctx, &result); err != nil {
                if err == mongo.ErrNoDocuments {
                        return "", store.ErrAuthSetNotFound
                }
                return "", err
        }

        if len(result) == 0 {
                return "", store.ErrAuthSetNotFound
        }

        for _, res := range result {
                statuses[res.Status] = res.Value
        }

        status, err := getDeviceStatus(statuses)
        if err != nil {
                return "", err
        }

        return status, nil
}

func (db *DataStoreMongo) ListTenantsIds(
        ctx context.Context,
) ([]string, error) {
        collDevs := db.client.
                Database(DbName).
                Collection(DbDevicesColl)

        results, err := collDevs.Distinct(ctx, dbFieldTenantID, bson.D{})
        if err != nil {
                return []string{}, nil
        }
        if len(results) < 1 {
                return []string{}, mongo.ErrNoDocuments
        }
        ids := make([]string, len(results))
        for i, id := range results {
                ids[i] = id.(string)
        }
        return ids, nil
}

mendersoftware / deviceauth / 833840828

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