103 lines
2.2 KiB
Go
103 lines
2.2 KiB
Go
package main
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import (
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"bytes"
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"encoding/gob"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"path"
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"github.com/matrix-org/gomatrix"
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)
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// FStore is the path to a directory which will contain our data.
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type FStore string
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// NewStore creates a new instance of FStore
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func NewStore(s string) (*FStore, error) {
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fi, err := os.Lstat(s)
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if err != nil {
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return nil, err
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}
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if !fi.IsDir() {
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return nil, fmt.Errorf("not a directory")
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}
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fstore := FStore(s)
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return &fstore, nil
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}
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func (s *FStore) encodeRoom(room *gomatrix.Room) ([]byte, error) {
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buf := new(bytes.Buffer)
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enc := gob.NewEncoder(buf)
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err := enc.Encode(room)
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if err != nil {
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return nil, err
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}
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return buf.Bytes(), nil
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}
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func (s *FStore) decodeRoom(room []byte) (*gomatrix.Room, error) {
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var r *gomatrix.Room
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buf := bytes.NewBuffer(room)
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dec := gob.NewDecoder(buf)
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err := dec.Decode(&r)
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if err != nil {
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return nil, err
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}
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return r, nil
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}
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// Set dumps value into a file named key
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func (s FStore) Set(key string, value string) {
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err := ioutil.WriteFile(path.Join(string(s), key), []byte(value), 0600)
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if err != nil {
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log.Println(err)
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}
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}
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// Get pulls value from a file named key
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func (s FStore) Get(key string) (string, error) {
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data, err := ioutil.ReadFile(path.Join(string(s), key))
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if err != nil {
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return "", nil
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}
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return string(data), nil
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}
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// SaveFilterID exposed for gomatrix
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func (s *FStore) SaveFilterID(userID, filterID string) {
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s.Set(fmt.Sprintf("filter_%s", userID), filterID)
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}
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// LoadFilterID exposed for gomatrix
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func (s *FStore) LoadFilterID(userID string) string {
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filter, _ := s.Get(fmt.Sprintf("filter_%s", userID))
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return filter
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}
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func (s *FStore) SaveNextBatch(userID, nextBatchToken string) {
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s.Set(fmt.Sprintf("batch_%s", userID), nextBatchToken)
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}
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// LoadNextBatch exposed for gomatrix
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func (s *FStore) LoadNextBatch(userID string) string {
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batch, _ := s.Get(fmt.Sprintf("batch_%s", userID))
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return batch
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}
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// SaveRoom exposed for gomatrix
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func (s *FStore) SaveRoom(room *gomatrix.Room) {
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b, _ := s.encodeRoom(room)
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s.Set(fmt.Sprintf("room_%s", room.ID), string(b))
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}
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// LoadRoom exposed for gomatrix
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func (s *FStore) LoadRoom(roomID string) *gomatrix.Room {
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b, _ := s.Get(fmt.Sprintf("room_%s", roomID))
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room, _ := s.decodeRoom([]byte(b))
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return room
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}
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