Implement MongoDB storage driver

README.md

@@ -28,4 +28,11 @@ Every single one of them has its own configuration variables:
 | `STORAGE_S3_SECRET_TOKEN`      | `<empty>`     | `string` | Defines the session token to use for the S3 storage (may be left empty in the most cases) |
 | `STORAGE_S3_SECURE`            | `true`        | `bool`   | Defines whether or not SSL should be used for the S3 connection                           |
 | `STORAGE_S3_REGION`            | `<empty>`     | `string` | Defines the region of the S3 storage                                                      |
-| `STORAGE_S3_BUCKET`            | `pasty`       | `string` | Defines the name of the S3 bucket (has to be created before setup)                        |
+| `STORAGE_S3_BUCKET`            | `pasty`       | `string` | Defines the name of the S3 bucket (has to be created before setup)                        |
+
+### MongoDB (`mongodb`)
+| Environment Variable                | Default Value                              | Type     | Description                                                     |
+|-------------------------------------|--------------------------------------------|----------|-----------------------------------------------------------------|
+| `STORAGE_MONGODB_CONNECTION_STRING` | `mongodb://pasty:pasty@example.host/pasty` | `string` | Defines the connection string to use for the MongoDB connection |
+| `STORAGE_MONGODB_DATABASE`          | `pasty`                                    | `string` | Defines the name of the database to use                         |
+| `STORAGE_MONGODB_COLLECTION`        | `pastes`                                   | `string` | Defines the name of the collection to use                       |

go.mod

@@ -11,4 +11,5 @@ require (
 	github.com/minio/minio-go/v7 v7.0.5
 	github.com/ulule/limiter/v3 v3.5.0
 	github.com/valyala/fasthttp v1.16.0
+	go.mongodb.org/mongo-driver v1.4.0
 )

go.sum

@@ -1,7 +1,10 @@
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 github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/tidwall/pretty v1.0.0 h1:HsD+QiTn7sK6flMKIvNmpqz1qrpP3Ps6jOKIKMooyg4=
+github.com/tidwall/pretty v1.0.0/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk=
 github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
 github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY=
 github.com/ulule/limiter/v3 v3.5.0 h1:QRAebbswjlezHIfiSQgM8+jMxaz/zsrxGRuiUJ43MHo=
@@ -95,7 +155,16 @@ github.com/valyala/fasthttp v1.15.1/go.mod h1:YOKImeEosDdBPnxc0gy7INqi3m1zK6A+xl
 github.com/valyala/fasthttp v1.16.0 h1:9zAqOYLl8Tuy3E5R6ckzGDJ1g8+pw15oQp2iL9Jl6gQ=
 github.com/valyala/fasthttp v1.16.0/go.mod h1:YOKImeEosDdBPnxc0gy7INqi3m1zK6A+xl6TwOBhHCA=
 github.com/valyala/tcplisten v0.0.0-20161114210144-ceec8f93295a/go.mod h1:v3UYOV9WzVtRmSR+PDvWpU/qWl4Wa5LApYYX4ZtKbio=
+github.com/xdg/scram v0.0.0-20180814205039-7eeb5667e42c h1:u40Z8hqBAAQyv+vATcGgV0YCnDjqSL7/q/JyPhhJSPk=
+github.com/xdg/scram v0.0.0-20180814205039-7eeb5667e42c/go.mod h1:lB8K/P019DLNhemzwFU4jHLhdvlE6uDZjXFejJXr49I=
+github.com/xdg/stringprep v0.0.0-20180714160509-73f8eece6fdc h1:n+nNi93yXLkJvKwXNP9d55HC7lGK4H/SRcwB5IaUZLo=
+github.com/xdg/stringprep v0.0.0-20180714160509-73f8eece6fdc/go.mod h1:Jhud4/sHMO4oL310DaZAKk9ZaJ08SJfe+sJh0HrGL1Y=
+go.mongodb.org/mongo-driver v1.4.0 h1:C8rFn1VF4GVEM/rG+dSoMmlm2pyQ9cs2/oRtUATejRU=
+go.mongodb.org/mongo-driver v1.4.0/go.mod h1:llVBH2pkj9HywK0Dtdt6lDikOjFLbceHVu/Rc0iMKLs=
+golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190422162423-af44ce270edf/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
+golang.org/x/crypto v0.0.0-20190530122614-20be4c3c3ed5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200414173820-0848c9571904 h1:bXoxMPcSLOq08zI3/c5dEBT6lE4eh+jOh886GHrn6V8=
 golang.org/x/crypto v0.0.0-20200414173820-0848c9571904/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
@@ -106,13 +175,24 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200602114024-627f9648deb9/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200707034311-ab3426394381 h1:VXak5I6aEWmAXeQjA+QSZzlgNrpq9mjcfDemuexIKsU=
 golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190412183630-56d357773e84/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e h1:vcxGaoTs7kV8m5Np9uUNQin4BrLOthgV7252N8V+FwY=
+golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190419153524-e8e3143a4f4a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190531175056-4c3a928424d2/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191010194322-b09406accb47/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -126,10 +206,15 @@ golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190329151228-23e29df326fe/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190416151739-9c9e1878f421/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190420181800-aa740d480789/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190531172133-b3315ee88b7d/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/ini.v1 v1.57.0 h1:9unxIsFcTt4I55uWluz+UmL95q4kdJ0buvQ1ZIqVQww=
 gopkg.in/ini.v1 v1.57.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=

internal/storage/driver.go

@@ -32,6 +32,9 @@ func Load() error {
 	case "s3":
 		driver = new(S3Driver)
 		break
+	case "mongodb":
+		driver = new(MongoDBDriver)
+		break
 	default:
 		return fmt.Errorf("invalid storage type '%s'", storageType)
 	}

internal/storage/file_driver.go

@@ -12,13 +12,13 @@ import (
 
 // FileDriver represents the file storage driver
 type FileDriver struct {
-	FilePath string
+	filePath string
 }
 
 // Initialize initializes the file storage driver
 func (driver *FileDriver) Initialize() error {
-	driver.FilePath = env.Get("STORAGE_FILE_PATH", "./data")
+	driver.filePath = env.Get("STORAGE_FILE_PATH", "./data")
-	return os.MkdirAll(driver.FilePath, os.ModePerm)
+	return os.MkdirAll(driver.filePath, os.ModePerm)
 }
 
 // Terminate terminates the file storage driver (does nothing, because the file storage driver does not need any termination)
@@ -29,7 +29,7 @@ func (driver *FileDriver) Terminate() error {
 // Get loads a paste
 func (driver *FileDriver) Get(id snowflake.ID) (*pastes.Paste, error) {
 	// Read the file
-	data, err := ioutil.ReadFile(filepath.Join(driver.FilePath, id.String()+".json"))
+	data, err := ioutil.ReadFile(filepath.Join(driver.filePath, id.String()+".json"))
 	if err != nil {
 		if os.IsNotExist(err) {
 			return nil, nil
@@ -55,7 +55,7 @@ func (driver *FileDriver) Save(paste *pastes.Paste) error {
 	}
 
 	// Create the file to save the paste to
-	file, err := os.Create(filepath.Join(driver.FilePath, paste.ID.String()+".json"))
+	file, err := os.Create(filepath.Join(driver.filePath, paste.ID.String()+".json"))
 	if err != nil {
 		return err
 	}
@@ -68,5 +68,5 @@ func (driver *FileDriver) Save(paste *pastes.Paste) error {
 
 // Delete deletes a paste
 func (driver *FileDriver) Delete(id snowflake.ID) error {
-	return os.Remove(filepath.Join(driver.FilePath, id.String()+".json"))
+	return os.Remove(filepath.Join(driver.filePath, id.String()+".json"))
 }

internal/storage/mongodb_driver.go

@@ -0,0 +1,105 @@
+package storage
+
+import (
+	"context"
+	"github.com/Lukaesebrot/pasty/internal/env"
+	"github.com/Lukaesebrot/pasty/internal/pastes"
+	"github.com/bwmarrin/snowflake"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+	"go.mongodb.org/mongo-driver/mongo/readpref"
+	"time"
+)
+
+// MongoDBDriver represents the MongoDB storage driver
+type MongoDBDriver struct {
+	client     *mongo.Client
+	database   string
+	collection string
+}
+
+// Initialize initializes the MongoDB storage driver
+func (driver *MongoDBDriver) Initialize() error {
+	// Define the context for the following database operation
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	// Connect to the MongoDB host
+	client, err := mongo.Connect(ctx, options.Client().ApplyURI(env.Get("STORAGE_MONGODB_CONNECTION_STRING", "mongodb://pasty:pasty@example.host/pasty")))
+	if err != nil {
+		return err
+	}
+
+	// Ping the MongoDB host
+	err = client.Ping(ctx, readpref.Primary())
+	if err != nil {
+		return err
+	}
+
+	// Set the driver attributes
+	driver.client = client
+	driver.database = env.Get("STORAGE_MONGODB_DATABASE", "pasty")
+	driver.collection = env.Get("STORAGE_MONGODB_COLLECTION", "pastes")
+	return nil
+}
+
+// Terminate terminates the MongoDB storage driver
+func (driver *MongoDBDriver) Terminate() error {
+	return driver.client.Disconnect(context.TODO())
+}
+
+// Get loads a paste
+func (driver *MongoDBDriver) Get(id snowflake.ID) (*pastes.Paste, error) {
+	// Define the collection to use for this database operation
+	collection := driver.client.Database(driver.database).Collection(driver.collection)
+
+	// Define the context for the following database operation
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	// Try to retrieve the corresponding paste document
+	filter := bson.M{"_id": id.String()}
+	result := collection.FindOne(ctx, filter)
+	err := result.Err()
+	if err != nil {
+		if err == mongo.ErrNoDocuments {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	// Return the retrieved paste object
+	paste := new(pastes.Paste)
+	err = result.Decode(paste)
+	return paste, err
+}
+
+// Save saves a paste
+func (driver *MongoDBDriver) Save(paste *pastes.Paste) error {
+	// Define the collection to use for this database operation
+	collection := driver.client.Database(driver.database).Collection(driver.collection)
+
+	// Define the context for the following database operation
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	// Insert the paste object
+	_, err := collection.InsertOne(ctx, paste)
+	return err
+}
+
+// Delete deletes a paste
+func (driver *MongoDBDriver) Delete(id snowflake.ID) error {
+	// Define the collection to use for this database operation
+	collection := driver.client.Database(driver.database).Collection(driver.collection)
+
+	// Define the context for the following database operation
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	// Delete the document
+	filter := bson.M{"_id": id.String()}
+	_, err := collection.DeleteOne(ctx, filter)
+	return err
+}

internal/storage/s3_driver.go

@@ -14,8 +14,8 @@ import (
 
 // S3Driver represents the AWS S3 storage driver
 type S3Driver struct {
-	Client *minio.Client
+	client *minio.Client
-	Bucket string
+	bucket string
 }
 
 // Initialize initializes the AWS S3 storage driver
@@ -28,8 +28,8 @@ func (driver *S3Driver) Initialize() error {
 	if err != nil {
 		return err
 	}
-	driver.Client = client
+	driver.client = client
-	driver.Bucket = env.Get("STORAGE_S3_BUCKET", "pasty")
+	driver.bucket = env.Get("STORAGE_S3_BUCKET", "pasty")
 	return nil
 }
 
@@ -41,7 +41,7 @@ func (driver *S3Driver) Terminate() error {
 // Get loads a paste
 func (driver *S3Driver) Get(id snowflake.ID) (*pastes.Paste, error) {
 	// Read the object
-	object, err := driver.Client.GetObject(context.Background(), driver.Bucket, id.String()+".json", minio.GetObjectOptions{})
+	object, err := driver.client.GetObject(context.Background(), driver.bucket, id.String()+".json", minio.GetObjectOptions{})
 	if err != nil {
 		return nil, err
 	}
@@ -69,7 +69,7 @@ func (driver *S3Driver) Save(paste *pastes.Paste) error {
 
 	// Put the object
 	reader := bytes.NewReader(jsonBytes)
-	_, err = driver.Client.PutObject(context.Background(), driver.Bucket, paste.ID.String()+".json", reader, reader.Size(), minio.PutObjectOptions{
+	_, err = driver.client.PutObject(context.Background(), driver.bucket, paste.ID.String()+".json", reader, reader.Size(), minio.PutObjectOptions{
 		ContentType: "application/json",
 	})
 	return err
@@ -77,5 +77,5 @@ func (driver *S3Driver) Save(paste *pastes.Paste) error {
 
 // Delete deletes a paste
 func (driver *S3Driver) Delete(id snowflake.ID) error {
-	return driver.Client.RemoveObject(context.Background(), driver.Bucket, id.String()+".json", minio.RemoveObjectOptions{})
+	return driver.client.RemoveObject(context.Background(), driver.bucket, id.String()+".json", minio.RemoveObjectOptions{})
 }