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files_sharings.go
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/
files_sharings.go
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package base
import (
"context"
"crypto/sha1"
"database/sql"
"encoding/json"
"errors"
"fmt"
"io"
"path"
"time"
"github.com/ihexxa/quickshare/src/db"
)
func (st *BaseStore) generateShareID(payload string) (string, error) {
if len(payload) == 0 {
return "", db.ErrEmpty
}
msg := fmt.Sprintf("%s-%d", payload, time.Now().Unix())
h := sha1.New()
_, err := io.WriteString(h, msg)
if err != nil {
return "", err
}
return fmt.Sprintf("%x", h.Sum(nil))[:7], nil
}
func (st *BaseStore) IsSharing(ctx context.Context, dirPath string) (bool, error) {
tx, err := st.db.BeginTx(ctx, txOpts)
if err != nil {
return false, err
}
defer tx.Rollback()
var shareId string
err = tx.QueryRowContext(
ctx,
`select share_id
from t_file_info
where path=?`,
dirPath,
).Scan(
&shareId,
)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return false, db.ErrFileInfoNotFound
}
return false, err
}
err = tx.Commit()
if err != nil {
return false, err
}
return shareId != "", nil
}
func (st *BaseStore) GetSharingDir(ctx context.Context, hashID string) (string, error) {
tx, err := st.db.BeginTx(ctx, txOpts)
if err != nil {
return "", err
}
defer tx.Rollback()
var sharedPath string
err = tx.QueryRowContext(
ctx,
`select path
from t_file_info
where share_id=?
`,
hashID,
).Scan(
&sharedPath,
)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return "", db.ErrSharingNotFound
}
return "", err
}
err = tx.Commit()
if err != nil {
return "", err
}
return sharedPath, nil
}
func (st *BaseStore) AddSharing(ctx context.Context, infoId, userId uint64, dirPath string) error {
tx, err := st.db.BeginTx(ctx, txOpts)
if err != nil {
return err
}
defer tx.Rollback()
shareID, err := st.generateShareID(dirPath)
if err != nil {
return err
}
location, err := getLocation(dirPath)
if err != nil {
return err
}
_, err = st.getFileInfo(ctx, tx, dirPath)
if err != nil && !errors.Is(err, db.ErrFileInfoNotFound) {
return err
}
if errors.Is(err, db.ErrFileInfoNotFound) {
// insert new
parentPath, name := path.Split(dirPath)
info := &db.FileInfo{Shared: true} // TODO: deprecate shared in info
infoStr, err := json.Marshal(info)
if err != nil {
return err
}
_, err = tx.ExecContext(
ctx,
`insert into t_file_info (
id, path, user,
location, parent, name,
is_dir, size, share_id, info
)
values (
?, ?, ?,
?, ?, ?,
?, ?, ?, ?
)`,
infoId, dirPath, userId,
location, parentPath, name,
true, 0, shareID, infoStr,
)
if err != nil {
return err
}
}
_, err = tx.ExecContext(
ctx,
`update t_file_info
set share_id=?
where path=?`,
shareID, dirPath,
)
if err != nil {
return err
}
return tx.Commit()
}
func (st *BaseStore) DelSharing(ctx context.Context, userId uint64, dirPath string) error {
tx, err := st.db.BeginTx(ctx, txOpts)
if err != nil {
return err
}
defer tx.Rollback()
_, err = tx.ExecContext(
ctx,
`update t_file_info
set share_id=''
where path=?`,
dirPath,
)
if err != nil {
return err
}
return tx.Commit()
}
func (st *BaseStore) ListSharingsByLocation(ctx context.Context, location string) (map[string]string, error) {
tx, err := st.db.BeginTx(ctx, txOpts)
if err != nil {
return nil, err
}
defer tx.Rollback()
rows, err := tx.QueryContext(
ctx,
`select path, share_id
from t_file_info
where share_id<>'' and location=?`,
location,
)
if err != nil {
return nil, err
}
defer rows.Close()
var pathname, shareId string
pathToShareId := map[string]string{}
for rows.Next() {
err = rows.Scan(&pathname, &shareId)
if err != nil {
return nil, err
}
pathToShareId[pathname] = shareId
}
if rows.Err() != nil {
return nil, rows.Err()
}
err = tx.Commit()
if err != nil {
return nil, err
}
return pathToShareId, nil
}