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docs: add object proto documentation

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alexvanin 2019-11-20 18:50:10 +03:00
parent 5befe14968
commit 5aaea793da
2 changed files with 114 additions and 95 deletions
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113
object/service.proto
View file

@ -9,111 +9,132 @@ import "github.com/gogo/protobuf/gogoproto/gogo.proto";
option (gogoproto.stable_marshaler_all) = true; option (gogoproto.stable_marshaler_all) = true;
// Object service provides API for manipulating with the object.
service Service { service Service {
// Get the object from a container
// Get the object from container. Response uses gRPC stream. First response
// message carry object of requested address. Chunk messages are parts of
// the object's payload if it is needed. All messages except first carry
// chunks. Requested object can be restored by concatenation of object
// message payload and all chunks keeping receiving order.
rpc Get(GetRequest) returns (stream GetResponse); rpc Get(GetRequest) returns (stream GetResponse);
// Put the object into a container // Put the object into container. Request uses gRPC stream. First message
// SHOULD BE type of PutHeader. Container id and Owner id of object SHOULD
// BE set. Session token SHOULD BE obtained before put operation (see
// session package). Chunk messages considered by server as part of object
// payload. All messages except first SHOULD BE chunks. Chunk messages
// SHOULD BE sent in direct order of fragmentation.
rpc Put(stream PutRequest) returns (PutResponse); rpc Put(stream PutRequest) returns (PutResponse);
// Delete the object from a container // Delete the object from a container
rpc Delete(DeleteRequest) returns (DeleteResponse); rpc Delete(DeleteRequest) returns (DeleteResponse);
// Get MetaInfo // Head returns the object without data payload. Object in the
// response has system header only. If full headers flag is set, extended
// headers are also present.
rpc Head(HeadRequest) returns (HeadResponse); rpc Head(HeadRequest) returns (HeadResponse);
// Search by MetaInfo // Search objects in container. Version of query language format SHOULD BE
// set to 1. Search query represented in serialized format (see query
// package).
rpc Search(SearchRequest) returns (SearchResponse); rpc Search(SearchRequest) returns (SearchResponse);
// Get ranges of object payload // GetRange of data payload. Ranges are set of pairs (offset, length).
// Fragments order in response corresponds to ranges order in request.
rpc GetRange(GetRangeRequest) returns (GetRangeResponse); rpc GetRange(GetRangeRequest) returns (GetRangeResponse);
// Get hashes of object ranges // GetRangeHash returns homomorphic hash of object payload range after XOR
// operation. Ranges are set of pairs (offset, length). Hashes order in
// response corresponds to ranges order in request. Homomorphic hash is
// calculated for XORed data.
rpc GetRangeHash(GetRangeHashRequest) returns (GetRangeHashResponse); rpc GetRangeHash(GetRangeHashRequest) returns (GetRangeHashResponse);
} }
message GetRequest { message GetRequest {
uint64 Epoch = 1; uint64 Epoch = 1; // Epoch is set by user to 0, node set epoch to the actual value
refs.Address Address = 2 [(gogoproto.nullable) = false]; refs.Address Address = 2 [(gogoproto.nullable) = false]; // Address of object (container id + object id)
uint32 TTL = 3; uint32 TTL = 3; // TTL must be larger than zero, it decreased in every neofs-node
} }
message GetResponse { message GetResponse {
oneof R { oneof R {
Object object = 1; Object object = 1; // Object header and some payload
bytes Chunk = 2; bytes Chunk = 2; // Chunk of remaining payload
} }
} }
message PutRequest { message PutRequest {
message PutHeader { message PutHeader {
uint64 Epoch = 1; uint64 Epoch = 1; // Epoch is set by user to 0, node set epoch to the actual value
Object Object = 2; Object Object = 2; // Object with at least container id and owner id fields
uint32 TTL = 3; uint32 TTL = 3; // TTL must be larger than zero, it decreased in every neofs-node
session.Token Token = 4; session.Token Token = 4; // Token with session public key and user's signature
} }
oneof R { oneof R {
PutHeader Header = 1; PutHeader Header = 1; // Header should be the first message in the stream
bytes Chunk = 2; bytes Chunk = 2; // Chunk should be a remaining message in stream should be chunks
} }
} }
message PutResponse { message PutResponse {
refs.Address Address = 1 [(gogoproto.nullable) = false]; refs.Address Address = 1 [(gogoproto.nullable) = false]; // Address of object (container id + object id)
} }
message DeleteRequest { message DeleteRequest {
uint64 Epoch = 1; uint64 Epoch = 1; // Epoch is set by user to 0, node set epoch to the actual value
refs.Address Address = 2 [(gogoproto.nullable) = false]; refs.Address Address = 2 [(gogoproto.nullable) = false]; // Address of object (container id + object id)
bytes OwnerID = 3 [(gogoproto.nullable) = false, (gogoproto.customtype) = "OwnerID"]; bytes OwnerID = 3 [(gogoproto.nullable) = false, (gogoproto.customtype) = "OwnerID"]; // OwnerID is a wallet address
uint32 TTL = 4; uint32 TTL = 4; // TTL must be larger than zero, it decreased in every neofs-node
session.Token Token = 5; session.Token Token = 5; // Token with session public key and user's signature
} }
// DeleteResponse is empty because we cannot guarantee permanent object removal
// in distributed system.
message DeleteResponse {} message DeleteResponse {}
// HeadRequest.FullHeader == true, for fetch all headers
message HeadRequest { message HeadRequest {
uint64 Epoch = 1; uint64 Epoch = 1; // Epoch is set by user to 0, node set epoch to the actual value
refs.Address Address = 2 [(gogoproto.nullable) = false, (gogoproto.customtype) = "Address"]; refs.Address Address = 2 [(gogoproto.nullable) = false, (gogoproto.customtype) = "Address"]; // Address of object (container id + object id)
bool FullHeaders = 3; bool FullHeaders = 3; // FullHeaders can be set true for extended headers in the object
uint32 TTL = 4; uint32 TTL = 4; // TTL must be larger than zero, it decreased in every neofs-node
} }
message HeadResponse { message HeadResponse {
Object Object = 1; Object Object = 1; // Object without payload
} }
message SearchRequest { message SearchRequest {
uint64 Epoch = 1; uint64 Epoch = 1; // Epoch is set by user to 0, node set epoch to the actual value
uint32 Version = 2; uint32 Version = 2; // Version of search query format
bytes ContainerID = 3 [(gogoproto.nullable) = false, (gogoproto.customtype) = "CID"]; bytes ContainerID = 3 [(gogoproto.nullable) = false, (gogoproto.customtype) = "CID"]; // ContainerID for searching the object
bytes Query = 4; bytes Query = 4; // Query in the binary serialized format
uint32 TTL = 5; uint32 TTL = 5; // TTL must be larger than zero, it decreased in every neofs-node
} }
message SearchResponse { message SearchResponse {
repeated refs.Address Addresses = 1 [(gogoproto.nullable) = false]; repeated refs.Address Addresses = 1 [(gogoproto.nullable) = false]; // Addresses of found objects
} }
message GetRangeRequest { message GetRangeRequest {
uint64 Epoch = 1; uint64 Epoch = 1; // Epoch is set by user to 0, node set epoch to the actual value
refs.Address Address = 2 [(gogoproto.nullable) = false]; refs.Address Address = 2 [(gogoproto.nullable) = false]; // Address of object (container id + object id)
repeated Range Ranges = 3 [(gogoproto.nullable) = false]; repeated Range Ranges = 3 [(gogoproto.nullable) = false]; // Ranges of object's payload to return
uint32 TTL = 4; uint32 TTL = 4; // TTL must be larger than zero, it decreased in every neofs-node
} }
message GetRangeResponse { message GetRangeResponse {
repeated bytes Fragments = 1; repeated bytes Fragments = 1; // Fragments of object's payload
} }
message GetRangeHashRequest { message GetRangeHashRequest {
uint64 Epoch = 1; uint64 Epoch = 1; // Epoch is set by user to 0, node set epoch to the actual value
refs.Address Address = 2 [(gogoproto.nullable) = false]; refs.Address Address = 2 [(gogoproto.nullable) = false]; // Address of object (container id + object id)
repeated Range Ranges = 3 [(gogoproto.nullable) = false]; repeated Range Ranges = 3 [(gogoproto.nullable) = false]; // Ranges of object's payload to calculate homomorphic hash
bytes Salt = 4; bytes Salt = 4; // Salt is used to XOR object's payload ranges before hashing, it can be nil
uint32 TTL = 5; uint32 TTL = 5; // TTL must be larger than zero, it decreased in every neofs-node
} }
message GetRangeHashResponse { message GetRangeHashResponse {
repeated bytes Hashes = 1 [(gogoproto.customtype) = "Hash", (gogoproto.nullable) = false]; repeated bytes Hashes = 1 [(gogoproto.customtype) = "Hash", (gogoproto.nullable) = false]; // Homomorphic hashes of all ranges
} }

96
object/types.proto
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@ -9,99 +9,97 @@ import "github.com/gogo/protobuf/gogoproto/gogo.proto";
option (gogoproto.stable_marshaler_all) = true; option (gogoproto.stable_marshaler_all) = true;
message Range { message Range {
uint64 Offset = 1; uint64 Offset = 1; // Offset of the data range
uint64 Length = 2; uint64 Length = 2; // Length of the data range
} }
message UserHeader { message UserHeader {
string Key = 1; string Key = 1; // Key of the user's header
string Value = 2; string Value = 2; // Value of the user's header
} }
message Header { message Header {
oneof Value { oneof Value {
Link Link = 1; Link Link = 1; // Link to other objects
refs.Address Redirect = 2; refs.Address Redirect = 2; // RedirectNot used yet
UserHeader UserHeader = 3; UserHeader UserHeader = 3; // UserHeader defined by user
Transform Transform = 4; Transform Transform = 4; // Transform defines transform operation (e.g. payload split)
Tombstone Tombstone = 5; Tombstone Tombstone = 5; // Tombstone header that set up in deleted objects
// session-related info: session.VerificationHeader session.VerificationHeader Verify = 6; // Verify header that contains session public key and user's signature
session.VerificationHeader Verify = 6; bytes HomoHash = 7 [(gogoproto.customtype) = "Hash"]; // Homomorphic hash of original object payload
// integrity-related info bytes PayloadChecksum = 8; // PayloadChecksum of actual object's payload
bytes HomoHash = 7 [(gogoproto.customtype) = "Hash"]; IntegrityHeader Integrity = 9; // Integrity header with checksum of all above headers in the object
bytes PayloadChecksum = 8; StorageGroup StorageGroup = 10; // StorageGroup contains meta information for the data audit
IntegrityHeader Integrity = 9;
StorageGroup StorageGroup = 10;
} }
} }
message Tombstone { message Tombstone {
uint64 Epoch = 1; uint64 Epoch = 1; // Epoch when tombstone was created
} }
message SystemHeader { message SystemHeader {
uint64 Version = 1; uint64 Version = 1; // Version of the object structure
uint64 PayloadLength = 2; uint64 PayloadLength = 2; // Object payload length
bytes ID = 3 [(gogoproto.customtype) = "ID", (gogoproto.nullable) = false]; bytes ID = 3 [(gogoproto.customtype) = "ID", (gogoproto.nullable) = false]; // ObjectID is a UUID
bytes OwnerID = 4 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; bytes OwnerID = 4 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false]; // OwnerID is a wallet address
bytes CID = 5 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false]; bytes CID = 5 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false]; // ContainerID is a SHA256 hash of the container structure
CreationPoint CreatedAt = 6 [(gogoproto.nullable) = false]; CreationPoint CreatedAt = 6 [(gogoproto.nullable) = false]; // Timestamp of object creation
} }
message CreationPoint { message CreationPoint {
int64 UnixTime = 1; int64 UnixTime = 1; // Date of creation in unixtime format
uint64 Epoch = 2; uint64 Epoch = 2; // Date of creation in NeoFS epochs
} }
message IntegrityHeader { message IntegrityHeader {
bytes HeadersChecksum = 1; bytes HeadersChecksum = 1; // Checksum of all above headers in the object
bytes ChecksumSignature = 2; bytes ChecksumSignature = 2; // User's signature of checksum to verify if it is correct
} }
message Link { message Link {
enum Type { enum Type {
Unknown = 0; Unknown = 0;
Parent = 1; Parent = 1; // Parent object created during object transformation
Previous = 2; Previous = 2; // Previous object in the linked list created during object transformation
Next = 3; Next = 3; // Next object in the linked list created during object transformation
Child = 4; Child = 4; // Child object created during object transformation
StorageGroup = 5; StorageGroup = 5; // Object that included into this storage group
} }
Type type = 1; Type type = 1; // Link type
bytes ID = 2 [(gogoproto.customtype) = "ID", (gogoproto.nullable) = false]; bytes ID = 2 [(gogoproto.customtype) = "ID", (gogoproto.nullable) = false]; // Object id
} }
message Transform { message Transform {
enum Type { enum Type {
Unknown = 0; Unknown = 0;
Split = 1; Split = 1; // Object created after payload split
Sign = 2; Sign = 2; // Object created after re-signing (doesn't used)
Mould = 3; Mould = 3; // Object created after filling missing headers in the object
} }
Type type = 1; Type type = 1; // Type of object transformation
} }
message Object { message Object {
SystemHeader SystemHeader = 1 [(gogoproto.nullable) = false]; SystemHeader SystemHeader = 1 [(gogoproto.nullable) = false]; // System header
repeated Header Headers = 2 [(gogoproto.nullable) = false]; repeated Header Headers = 2 [(gogoproto.nullable) = false]; // Extended headers
bytes Payload = 3; bytes Payload = 3; // Object's payload
} }
message StorageGroup { message StorageGroup {
uint64 ValidationDataSize = 1; uint64 ValidationDataSize = 1; // Size of the all object's payloads included into storage group
bytes ValidationHash = 2 [(gogoproto.customtype) = "Hash", (gogoproto.nullable) = false]; bytes ValidationHash = 2 [(gogoproto.customtype) = "Hash", (gogoproto.nullable) = false]; // Homomorphic hash of all object's payloads included into storage group
message Lifetime { message Lifetime {
enum Unit { enum Unit {
Unlimited = 0; Unlimited = 0; // Storage group always valid
NeoFSEpoch = 1; NeoFSEpoch = 1; // Storage group is valid until lifetime NeoFS epoch
UnixTime = 2; UnixTime = 2; // Storage group is valid until lifetime unix timestamp
} }
Unit unit = 1 [(gogoproto.customname) = "Unit"]; Unit unit = 1 [(gogoproto.customname) = "Unit"]; // Lifetime type
int64 Value = 2; int64 Value = 2; // Lifetime value
} }
Lifetime lifetime = 3 [(gogoproto.customname) = "Lifetime"]; Lifetime lifetime = 3 [(gogoproto.customname) = "Lifetime"]; // Time until storage group is valid
} }