✨ Attachment has pool

pkg/internal/models/attachments.go

@@ -15,11 +15,14 @@ const (
 type Attachment struct {
 	BaseModel
 
-	Uuid        string        `json:"uuid"`
+	// Random ID is for accessing (appear in URL)
+	Rid string `json:"rid" gorm:"uniqueIndex"`
+	// Unique ID is for storing (appear in local file name or object name)
+	Uuid string `json:"uuid"`
+
 	Size        int64         `json:"size"`
 	Name        string        `json:"name"`
 	Alternative string        `json:"alt"`
-	Usage       string        `json:"usage"`
 	MimeType    string        `json:"mimetype"`
 	HashCode    string        `json:"hash"`
 	Destination AttachmentDst `json:"destination"`

pkg/internal/models/pools.go

@@ -17,6 +17,8 @@ type AttachmentPool struct {
 }
 
 type AttachmentPoolConfig struct {
-	ExistLifecycle     *int `json:"exist_lifecycle"`
-	IsPublicAccessible bool `json:"is_public_accessible"`
+	MaxFileSize           *int64 `json:"max_file_size"`
+	ExistLifecycle        *int64 `json:"exist_lifecycle"`
+	AllowCrossPoolIngress bool   `json:"allow_cross_pool_ingress"`
+	AllowCrossPoolEgress  bool   `json:"allow_cross_pool_egress"`
 }

pkg/internal/server/api/attachments_api.go

@@ -85,9 +85,18 @@ func createAttachment(c *fiber.Ctx) error {
 	}
 	user := c.Locals("user").(models.Account)
 
-	usage := c.FormValue("usage")
-	if !lo.Contains(viper.GetStringSlice("accepts_usage"), usage) {
-		return fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("disallowed usage: %s", usage))
+	poolAlias := c.FormValue("pool")
+	if len(poolAlias) == 0 {
+		poolAlias = c.FormValue("usage")
+	}
+	aliasingMap := viper.GetStringMapString("pools.aliases")
+	if val, ok := aliasingMap[poolAlias]; ok {
+		poolAlias = val
+	}
+
+	pool, err := services.GetAttachmentPoolByAlias(poolAlias)
+	if err != nil {
+		return fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("unable to get attachment pool info: %v", err))
 	}
 
 	file, err := c.FormFile("file")
@@ -97,6 +106,8 @@ func createAttachment(c *fiber.Ctx) error {
 
 	if err = gap.H.EnsureGrantedPerm(c, "CreateAttachments", file.Size); err != nil {
 		return err
+	} else if pool.Config.Data().MaxFileSize != nil && file.Size > *pool.Config.Data().MaxFileSize {
+		return fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("attachment pool %s doesn't allow file larger than %d", pool.Alias, *pool.Config.Data().MaxFileSize))
 	}
 
 	usermeta := make(map[string]any)
@@ -105,13 +116,14 @@ func createAttachment(c *fiber.Ctx) error {
 	tx := database.C.Begin()
 
 	metadata, err := services.NewAttachmentMetadata(tx, user, file, models.Attachment{
-		Usage:       usage,
 		Alternative: c.FormValue("alt"),
 		MimeType:    c.FormValue("mimetype"),
 		Metadata:    usermeta,
 		IsMature:    len(c.FormValue("mature")) > 0,
 		IsAnalyzed:  false,
 		Destination: models.AttachmentDstTemporary,
+		Pool:        &pool,
+		PoolID:      &pool.ID,
 	})
 	if err != nil {
 		tx.Rollback()
@@ -126,6 +138,7 @@ func createAttachment(c *fiber.Ctx) error {
 	tx.Commit()
 
 	metadata.Account = user
+	metadata.Pool = &pool
 	services.PublishAnalyzeTask(metadata)
 
 	return c.JSON(metadata)
@@ -141,7 +154,6 @@ func updateAttachmentMeta(c *fiber.Ctx) error {
 
 	var data struct {
 		Alternative string `json:"alt"`
-		Usage       string `json:"usage"`
 		IsMature    bool   `json:"is_mature"`
 	}
 
@@ -155,7 +167,6 @@ func updateAttachmentMeta(c *fiber.Ctx) error {
 	}
 
 	attachment.Alternative = data.Alternative
-	attachment.Usage = data.Usage
 	attachment.IsMature = data.IsMature
 
 	if attachment, err := services.UpdateAttachment(attachment); err != nil {

pkg/internal/services/analyzer.go

@@ -99,7 +99,7 @@ func AnalyzeAttachment(file models.Attachment) error {
 
 	var start time.Time
 
-	// Do analyze job
+	// Do analyze jobs
 	if !file.IsAnalyzed || len(file.HashCode) == 0 {
 		destMap := viper.GetStringMap("destinations.temporary")
 

pkg/internal/services/attachments.go

@@ -28,7 +28,7 @@ func GetAttachmentByID(id uint) (models.Attachment, error) {
 	var attachment models.Attachment
 	if err := database.C.Where(models.Attachment{
 		BaseModel: models.BaseModel{ID: id},
-	}).Preload("Account").First(&attachment).Error; err != nil {
+	}).Preload("Pool").Preload("Account").First(&attachment).Error; err != nil {
 		return attachment, err
 	} else {
 		MaintainAttachmentCache()
@@ -42,7 +42,7 @@ func GetAttachmentByHash(hash string) (models.Attachment, error) {
 	var attachment models.Attachment
 	if err := database.C.Where(models.Attachment{
 		HashCode: hash,
-	}).First(&attachment).Error; err != nil {
+	}).Preload("Pool").First(&attachment).Error; err != nil {
 		return attachment, err
 	}
 	return attachment, nil
@@ -60,6 +60,7 @@ func CacheAttachment(id uint, item models.Attachment) {
 }
 
 func NewAttachmentMetadata(tx *gorm.DB, user models.Account, file *multipart.FileHeader, attachment models.Attachment) (models.Attachment, error) {
+	attachment.Rid = RandString(16)
 	attachment.Uuid = uuid.NewString()
 	attachment.Size = file.Size
 	attachment.Name = file.Filename
@@ -104,6 +105,13 @@ func TryLinkAttachment(tx *gorm.DB, og models.Attachment, hash string) (bool, er
 		return false, err
 	}
 
+	if prev.PoolID != nil && og.PoolID != nil && prev.PoolID != og.PoolID {
+		if !prev.Pool.Config.Data().AllowCrossPoolEgress || !og.Pool.Config.Data().AllowCrossPoolIngress {
+			// Pool config doesn't allow reference
+			return false, nil
+		}
+	}
+
 	prev.RefCount++
 	og.RefID = &prev.ID
 	og.Uuid = prev.Uuid

pkg/internal/services/pools.go

@@ -21,6 +21,14 @@ func GetAttachmentPool(id uint) (models.AttachmentPool, error) {
 	return pool, nil
 }
 
+func GetAttachmentPoolByAlias(alias string) (models.AttachmentPool, error) {
+	var pool models.AttachmentPool
+	if err := database.C.Where("alias = ?", alias).First(&pool).Error; err != nil {
+		return pool, err
+	}
+	return pool, nil
+}
+
 func GetAttachmentPoolWithUser(id uint, userId uint) (models.AttachmentPool, error) {
 	var pool models.AttachmentPool
 	if err := database.C.Where("id = ? AND account_id = ?", id, userId).First(&pool).Error; err != nil {

pkg/internal/services/random_id.go

@@ -0,0 +1,31 @@
+package services
+
+import (
+	"math/rand"
+	"strings"
+)
+
+const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+const (
+	letterIdxBits = 6
+	letterIdxMask = 1<<letterIdxBits - 1
+	letterIdxMax  = 63 / letterIdxBits
+)
+
+func RandString(length int) string {
+	builder := strings.Builder{}
+	builder.Grow(length)
+	for idx, cache, remain := length-1, rand.Int63(), letterIdxMax; idx >= 0; {
+		if remain == 0 {
+			cache, remain = rand.Int63(), letterIdxMax
+		}
+		if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
+			builder.WriteByte(letterBytes[idx])
+			idx--
+		}
+		cache >>= letterIdxBits
+		remain--
+	}
+
+	return builder.String()
+}