ff8e191a9a
* Added piecestore * gofmt * Added requested changes * Added cli * Removed ranger because I wanted something that can stand alone * Add example of http server using piece store * Changed piecestore code to make it more optial for error handelling * Merged with piecestore * Added missing package * Forgot io import * gofmt * gofmt * Forgot io * Make path by hash exported * updated to simplify again whoops * Updated server to work real good * Forgot ampersand * Updated to match FilePiece * Merged in cam's delete code * Remove unused io * Added RPC code * Give the download request a reader * Removed http server stuff; changed receive stream to say io.reader * Added expiration date to shardInfo * Change all instances of Shard to Piece; change protobuf name; moved client insance to outside functions * added ttl info request * Move scripts to http server pr; added close method for Retrieve api * added rpc server tests for getting piece meta data and retrieval routes * Resolved linter errors, moved to prc server to pkg, updated go.mod to use latest protobuf * Imported cams test * Bump gometalinter deadline * WIP adding tests * added tests for store and delete routes * Add changes as requested by Kaloyan, also cleaned up some code * Get the code actually working whoops * More cleanup * Separating database calls from api.go * need to rename expiration * Added some changes requested by JT * Fix read size * Fixed total amount to read * added tests * Simplify protobuf, add store tests, edited api to handle invalid stores properly, return errors instead of messages * Moved rpc client and server to piece store * Moved piecestore protobuf to the /protos folder * Cleaned up messages * Clean up linter errors * Added missing sqlite import * Add ability to do iterative reads and writes to pstore * Incrementally read data * Fix linter and import errors * Solve linter Error * Change return types * begin test refactor * refactored to implement only 1 db connection, moved SQLite row checking into separate function and removed defer on rows.Close(), fixed os.tempDir in rpc_test.go * Cleaning up tests * Added retrieve tests * refactored delete tests * Deleted old tests * Updated cmd/piecestore to reflect changes to piecestore * Refactored server tests and server/client store code * gofmt * WIP implementing TTL struct * Read 4k at a time when Retrieving * implemented ttl struct * Accidentally removed fpiece dependency? * Double resolve merge conflict * Moved client to the examples since it is an example * Change hash to id in protobuf. TODO: Change client and server to reflect these changes * Update client and protobuf * changed hash to id * Handle eof properly in retrieve * Id -> ID * forgot to change import for client after moving * Moved client and server main to examples * Made changes requested by JT * checkEntries is now private, created currentTime variable for checkEntries, added defer rows.Close() * Print not fatal * Handle overflow when reading from server * added const IDLength * removed types from comments * Add reader/writer for download data from and uploading data to server * goimports and comments * fixed nits, casts, added OK const, DBCleanup now exits program on error * Add stream reader and writer for server * Fix errors * i beforee except after c lol * customizable data dir * Forgot to rename variable * customizable data dir * Handle closing of server stream properly * linter * pass on inserting the same data twice * linter * linter * Do the easy things JT asked for * Handle overflow from reads properly; handle custom db path * Handle overflow for server stream read; TODO Combine server and client stream reads * Allow for TTL of 0 to stay forever * Make Client cleaner for user
143 lines
3.3 KiB
Go
143 lines
3.3 KiB
Go
// Copyright (C) 2018 Storj Labs, Inc.
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// See LICENSE for copying information.
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package server
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import (
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"fmt"
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"io"
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"log"
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"os"
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"golang.org/x/net/context"
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"storj.io/storj/pkg/piecestore"
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"storj.io/storj/pkg/piecestore/rpc/server/ttl"
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pb "storj.io/storj/protos/piecestore"
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)
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// OK - Success!
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const OK = "OK"
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// Server -- GRPC server meta data used in route calls
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type Server struct {
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PieceStoreDir string
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DB *ttl.TTL
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}
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// Store -- Store incoming data using piecestore
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func (s *Server) Store(stream pb.PieceStoreRoutes_StoreServer) error {
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log.Println("Storing data...")
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// Receive initial meta data about what's being stored
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piece, err := stream.Recv()
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if err != nil {
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return err
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}
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// If we put in the database first then that checks if the data already exists
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if err := s.DB.AddTTLToDB(piece.Id, piece.Ttl); err != nil {
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log.Println(err)
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return err
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}
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// Initialize file for storing data
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storeFile, err := pstore.StoreWriter(piece.Id, piece.Size, piece.StoreOffset, s.PieceStoreDir)
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if err != nil {
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return err
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}
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defer storeFile.Close()
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reader := &StreamReader{stream: stream}
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total, err := io.Copy(storeFile, reader)
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if err != nil {
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return err
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}
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if total < piece.Size {
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return fmt.Errorf("Received %v bytes of total %v bytes", int64(total), piece.Size)
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}
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log.Println("Successfully stored data.")
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return stream.SendAndClose(&pb.PieceStoreSummary{Message: OK, TotalReceived: int64(total)})
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}
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// Retrieve -- Retrieve data from piecestore and send to client
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func (s *Server) Retrieve(pieceMeta *pb.PieceRetrieval, stream pb.PieceStoreRoutes_RetrieveServer) error {
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log.Println("Retrieving data...")
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path, err := pstore.PathByID(pieceMeta.Id, s.PieceStoreDir)
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if err != nil {
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return err
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}
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fileInfo, err := os.Stat(path)
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if err != nil {
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return err
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}
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// Read the size specified
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totalToRead := pieceMeta.Size
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// Read the entire file if specified -1
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if pieceMeta.Size <= -1 {
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totalToRead = fileInfo.Size()
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}
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storeFile, err := pstore.RetrieveReader(pieceMeta.Id, totalToRead, pieceMeta.StoreOffset, s.PieceStoreDir)
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if err != nil {
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return err
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}
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defer storeFile.Close()
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writer := &StreamWriter{stream: stream}
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_, err = io.Copy(writer, storeFile)
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if err != nil {
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return err
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}
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log.Println("Successfully retrieved data.")
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return nil
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}
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// Piece -- Send meta data about a stored by by Id
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func (s *Server) Piece(ctx context.Context, in *pb.PieceId) (*pb.PieceSummary, error) {
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log.Println("Getting Meta data...")
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path, err := pstore.PathByID(in.Id, s.PieceStoreDir)
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if err != nil {
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return nil, err
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}
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fileInfo, err := os.Stat(path)
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if err != nil {
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return nil, err
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}
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// Read database to calculate expiration
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ttl, err := s.DB.GetTTLByID(in.Id)
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if err != nil {
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return nil, err
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}
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log.Println("Meta data retrieved.")
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return &pb.PieceSummary{Id: in.Id, Size: fileInfo.Size(), Expiration: ttl}, nil
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}
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// Delete -- Delete data by Id from piecestore
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func (s *Server) Delete(ctx context.Context, in *pb.PieceDelete) (*pb.PieceDeleteSummary, error) {
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log.Println("Deleting data...")
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if err := pstore.Delete(in.Id, s.PieceStoreDir); err != nil {
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return nil, err
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}
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if err := s.DB.DeleteTTLByID(in.Id); err != nil {
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return nil, err
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}
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log.Println("Successfully deleted data.")
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return &pb.PieceDeleteSummary{Message: OK}, nil
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}
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