PMM-9320: fix username/password incorrect escape

actions/mongodb_explain_action.go

@@ -26,8 +26,8 @@ import (
 	"github.com/pkg/errors"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
-	"go.mongodb.org/mongo-driver/mongo/options"
 
+	"github.com/percona/pmm-agent/mongo_fix"
 	"github.com/percona/pmm-agent/utils/templates"
 )
 
@@ -68,7 +68,12 @@ func (a *mongodbExplainAction) Run(ctx context.Context) ([]byte, error) {
 		return nil, errors.WithStack(err)
 	}
 
-	client, err := mongo.Connect(ctx, options.Client().ApplyURI(dsn))
+	opts, err := mongo_fix.ClientOptionsForDSN(dsn)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	client, err := mongo.Connect(ctx, opts)
 	if err != nil {
 		return nil, errors.WithStack(err)
 	}

actions/mongodb_query_admincommand_action.go

@@ -24,8 +24,8 @@ import (
 	"github.com/pkg/errors"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
-	"go.mongodb.org/mongo-driver/mongo/options"
 
+	"github.com/percona/pmm-agent/mongo_fix"
 	"github.com/percona/pmm-agent/utils/templates"
 )
 
@@ -77,7 +77,12 @@ func (a *mongodbQueryAdmincommandAction) Run(ctx context.Context) ([]byte, error
 		return nil, errors.WithStack(err)
 	}
 
-	client, err := mongo.Connect(ctx, options.Client().ApplyURI(dsn))
+	opts, err := mongo_fix.ClientOptionsForDSN(dsn)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	client, err := mongo.Connect(ctx, opts)
 	if err != nil {
 		return nil, errors.WithStack(err)
 	}

agents/mongodb/internal/profiler/collector/collector_test.go

@@ -30,8 +30,9 @@ import (
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/bson/primitive"
 	"go.mongodb.org/mongo-driver/mongo"
-	"go.mongodb.org/mongo-driver/mongo/options"
 	"go.mongodb.org/mongo-driver/mongo/readpref"
+
+	"github.com/percona/pmm-agent/mongo_fix"
 )
 
 const (
@@ -202,8 +203,12 @@ func createSession(dsn string, agentID string) (*mongo.Client, error) {
 	ctx, cancel := context.WithTimeout(context.Background(), MgoTimeoutDialInfo)
 	defer cancel()
 
-	opts := options.Client().
-		ApplyURI(dsn).
+	opts, err := mongo_fix.ClientOptionsForDSN(dsn)
+	if err != nil {
+		return nil, err
+	}
+
+	opts = opts.
 		SetDirect(true).
 		SetReadPreference(readpref.Nearest()).
 		SetSocketTimeout(MgoTimeoutSessionSocket).

agents/mongodb/internal/profiler/profiler.go

@@ -24,11 +24,11 @@ import (
 
 	"github.com/sirupsen/logrus"
 	"go.mongodb.org/mongo-driver/mongo"
-	"go.mongodb.org/mongo-driver/mongo/options"
 	"go.mongodb.org/mongo-driver/mongo/readpref"
 
 	"github.com/percona/pmm-agent/agents/mongodb/internal/profiler/aggregator"
 	"github.com/percona/pmm-agent/agents/mongodb/internal/profiler/sender"
+	"github.com/percona/pmm-agent/mongo_fix"
 )
 
 // New creates new Profiler
@@ -192,8 +192,13 @@ func signalReady(ready *sync.Cond) {
 func createSession(dsn string, agentID string) (*mongo.Client, error) {
 	ctx, cancel := context.WithTimeout(context.Background(), MgoTimeoutDialInfo)
 	defer cancel()
-	opts := options.Client().
-		ApplyURI(dsn).
+
+	opts, err := mongo_fix.ClientOptionsForDSN(dsn)
+	if err != nil {
+		return nil, err
+	}
+
+	opts = opts.
 		SetDirect(true).
 		SetReadPreference(readpref.Nearest()).
 		SetSocketTimeout(MgoTimeoutSessionSocket).

connectionchecker/connection_checker.go

@@ -35,9 +35,9 @@ import (
 	"github.com/sirupsen/logrus"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
-	"go.mongodb.org/mongo-driver/mongo/options"
 
 	"github.com/percona/pmm-agent/config"
+	"github.com/percona/pmm-agent/mongo_fix"
 	"github.com/percona/pmm-agent/tlshelpers"
 	"github.com/percona/pmm-agent/utils/templates"
 )
@@ -162,7 +162,14 @@ func (cc *ConnectionChecker) checkMongoDBConnection(ctx context.Context, dsn str
 		return &res
 	}
 
-	client, err := mongo.Connect(ctx, options.Client().ApplyURI(dsn))
+	opts, err := mongo_fix.ClientOptionsForDSN(dsn)
+	if err != nil {
+		cc.l.Debugf("failed to parse DSN: %s", err)
+		res.Error = err.Error()
+		return &res
+	}
+
+	client, err := mongo.Connect(ctx, opts)
 	if err != nil {
 		cc.l.Debugf("checkMongoDBConnection: failed to Connect: %s", err)
 		res.Error = err.Error()

mongo_fix/mongo_fix.go

@@ -0,0 +1,42 @@
+// pmm-agent
+// Copyright 2019 Percona LLC
+//
+// 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_fix
+
+import (
+	"net/url"
+
+	"github.com/pkg/errors"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+// ClientOptionsForDSN applies URI to Client.
+func ClientOptionsForDSN(dsn string) (*options.ClientOptions, error) {
+	clientOptions := options.Client().ApplyURI(dsn)
+
+	// Workaround for PMM-9320
+	parsedDsn, err := url.Parse(dsn)
+	if err != nil {
+		return nil, errors.Wrap(err, "cannot parse DSN")
+	}
+
+	username := parsedDsn.User.Username()
+	password, _ := parsedDsn.User.Password()
+	if username != "" || password != "" {
+		clientOptions = clientOptions.SetAuth(options.Credential{Username: username, Password: password})
+	}
+
+	return clientOptions, nil
+}

mongo_fix/mongo_fix_test.go

@@ -0,0 +1,47 @@
+package mongo_fix
+
+import (
+	"github.com/stretchr/testify/assert"
+	"net/url"
+	"testing"
+)
+
+func TestClientOptionsForDSN(t *testing.T) {
+	tests := []struct {
+		name             string
+		dsn              string
+		expectedUser     string
+		expectedPassword string
+	}{
+		{
+			name: "Escape username",
+			dsn: (&url.URL{
+				Scheme: "mongo",
+				Host:   "localhost",
+				Path:   "/db",
+				User:   url.UserPassword("user+", "pass"),
+			}).String(),
+			expectedUser:     "user+",
+			expectedPassword: "pass",
+		},
+		{
+			name: "Escape password",
+			dsn: (&url.URL{
+				Scheme: "mongo",
+				Host:   "localhost",
+				Path:   "/db",
+				User:   url.UserPassword("user", "pass+"),
+			}).String(),
+			expectedUser:     "user",
+			expectedPassword: "pass+",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := ClientOptionsForDSN(tt.dsn)
+			assert.Nil(t, err)
+			assert.Equal(t, got.Auth.Username, tt.expectedUser)
+			assert.Equal(t, got.Auth.Password, tt.expectedPassword)
+		})
+	}
+}

utils/tests/mongodb.go

@@ -25,7 +25,8 @@ import (
 	"github.com/stretchr/testify/require"
 	"go.mongodb.org/mongo-driver/bson/primitive"
 	"go.mongodb.org/mongo-driver/mongo"
-	"go.mongodb.org/mongo-driver/mongo/options"
+
+	"github.com/percona/pmm-agent/mongo_fix"
 )
 
 // GetTestMongoDBDSN returns DNS for MongoDB test database.
@@ -104,7 +105,12 @@ func GetTestMongoDBReplicatedWithSSLDSN(tb testing.TB, pathToRoot string) (strin
 func OpenTestMongoDB(tb testing.TB, dsn string) *mongo.Client {
 	tb.Helper()
 
-	client, err := mongo.Connect(context.Background(), options.Client().ApplyURI(dsn))
+	opts, err := mongo_fix.ClientOptionsForDSN(dsn)
+	if err != nil {
+		require.NoError(tb, err)
+	}
+
+	client, err := mongo.Connect(context.Background(), opts)
 	require.NoError(tb, err)
 
 	require.NoError(tb, client.Ping(context.Background(), nil))