feat: add metadata service

This commit is contained in:
Derrick Hammer 2024-02-16 21:56:38 -05:00
parent 44c564761c
commit a76d13e75d
Signed by: pcfreak30
GPG Key ID: C997C339BE476FF2
2 changed files with 141 additions and 2 deletions

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@ -1,22 +1,24 @@
package main
import (
"flag"
"net/http"
"git.lumeweb.com/LumeWeb/portal/account"
"git.lumeweb.com/LumeWeb/portal/api"
_config "git.lumeweb.com/LumeWeb/portal/config"
"git.lumeweb.com/LumeWeb/portal/cron"
"git.lumeweb.com/LumeWeb/portal/db"
_logger "git.lumeweb.com/LumeWeb/portal/logger"
"git.lumeweb.com/LumeWeb/portal/metadata"
"git.lumeweb.com/LumeWeb/portal/protocols"
"git.lumeweb.com/LumeWeb/portal/renter"
"git.lumeweb.com/LumeWeb/portal/storage"
flag "github.com/spf13/pflag"
"github.com/spf13/viper"
"go.uber.org/fx"
"go.uber.org/fx/fxevent"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"net/http"
)
func main() {
@ -66,6 +68,7 @@ func main() {
storage.Module,
cron.Module,
account.Module,
metadata.Module,
protocols.BuildProtocols(config),
api.BuildApis(config),
fx.Provide(api.NewCasbin),

136
metadata/metadata.go Normal file
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@ -0,0 +1,136 @@
package metadata
import (
"context"
"encoding/hex"
"errors"
"time"
"git.lumeweb.com/LumeWeb/portal/db/models"
"go.uber.org/fx"
"gorm.io/gorm"
)
var ErrNotFound = gorm.ErrRecordNotFound
type UploadMetadata struct {
UserID uint `json:"userId"`
Hash []byte `json:"hash"`
MimeType string `json:"mimeType"`
Protocol string `json:"protocol"`
UploaderIP string `json:"uploaderIp"`
Size uint64 `json:"size"`
Created time.Time `json:"created"`
}
func (u UploadMetadata) IsEmpty() bool {
if u.UserID != 0 || u.MimeType != "" || u.Protocol != "" || u.UploaderIP != "" || u.Size != 0 {
return false
}
if !u.Created.IsZero() {
return false
}
if len(u.Hash) != 0 {
return false
}
return true
}
var Module = fx.Module("metadata",
fx.Provide(
NewMetadataService,
),
)
type MetadataService interface {
SaveUpload(ctx context.Context, metadata UploadMetadata) error
GetUpload(ctx context.Context, objectHash []byte) (UploadMetadata, error)
DeleteUpload(ctx context.Context, objectHash []byte) error
}
type MetadataServiceDefault struct {
db *gorm.DB
}
type MetadataServiceParams struct {
fx.In
Db *gorm.DB
}
func NewMetadataService(params MetadataServiceParams) *MetadataServiceDefault {
return &MetadataServiceDefault{
db: params.Db,
}
}
func (m *MetadataServiceDefault) SaveUpload(ctx context.Context, metadata UploadMetadata) error {
var upload models.Upload
upload.Hash = hex.EncodeToString(metadata.Hash)
ret := m.db.WithContext(ctx).Model(&models.Upload{}).Where(&upload).First(&upload)
if ret.Error != nil {
if !errors.Is(ret.Error, gorm.ErrRecordNotFound) {
return ret.Error
}
}
if ret.RowsAffected > 0 {
return nil
}
upload.UserID = metadata.UserID
upload.MimeType = metadata.MimeType
upload.Protocol = metadata.Protocol
upload.UploaderIP = metadata.UploaderIP
upload.Size = metadata.Size
return m.db.Save(&metadata).Error
}
func (m *MetadataServiceDefault) GetUpload(ctx context.Context, objectHash []byte) (UploadMetadata, error) {
var upload models.Upload
upload.Hash = hex.EncodeToString(objectHash)
ret := m.db.WithContext(ctx).Model(&models.Upload{}).Where(&upload).First(&upload)
if ret.Error != nil {
if errors.Is(ret.Error, gorm.ErrRecordNotFound) {
return UploadMetadata{}, ret.Error
}
}
hash, err := hex.DecodeString(upload.Hash)
if err != nil {
return UploadMetadata{}, err
}
return UploadMetadata{
UserID: upload.UserID,
Hash: hash,
MimeType: upload.MimeType,
Protocol: upload.Protocol,
UploaderIP: upload.UploaderIP,
Size: upload.Size,
}, nil
}
func (m *MetadataServiceDefault) DeleteUpload(ctx context.Context, objectHash []byte) error {
var upload models.Upload
upload.Hash = hex.EncodeToString(objectHash)
ret := m.db.WithContext(ctx).Model(&models.Upload{}).Where(&upload).First(&upload)
if ret.Error != nil {
return ret.Error
}
return m.db.Delete(&upload).Error
}