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rpc/api: don't crash for unknown blocks

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Most eth RPC calls that work with blocks crashed when the block was not
found because they called Hash on a nil block. This is a regression
introduced in cdc2662c409 (#1779).

While here, remove the insane conversions in get*CountBy*. There is no
need to construct a complete BlockRes and converting
int->int64->*big.Int->[]byte->hexnum->string to format the length of a
slice as hex.
This commit is contained in:
Felix Lange 2015-09-22 23:59:26 +02:00
parent 70b6174748
commit 90cd8ae9f2
1 changed files with 23 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
rpc/api/eth.go
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@ -210,7 +210,7 @@ func (self *ethApi) GetTransactionCount(req *shared.Request) (interface{}, error
}
count := self.xeth.AtStateNum(args.BlockNumber).TxCountAt(args.Address)
return newHexNum(big.NewInt(int64(count)).Bytes()), nil
return fmt.Sprintf("%#x", count), nil
}
func (self *ethApi) GetBlockTransactionCountByHash(req *shared.Request) (interface{}, error) {
@ -218,14 +218,11 @@ func (self *ethApi) GetBlockTransactionCountByHash(req *shared.Request) (interfa
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
raw := self.xeth.EthBlockByHash(args.Hash)
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), false)
block := self.xeth.EthBlockByHash(args.Hash)
if block == nil {
return nil, nil
} else {
return newHexNum(big.NewInt(int64(len(block.Transactions))).Bytes()), nil
}
return fmt.Sprintf("%#x", len(block.Transactions())), nil
}
func (self *ethApi) GetBlockTransactionCountByNumber(req *shared.Request) (interface{}, error) {
@ -234,13 +231,11 @@ func (self *ethApi) GetBlockTransactionCountByNumber(req *shared.Request) (inter
return nil, shared.NewDecodeParamError(err.Error())
}
raw := self.xeth.EthBlockByNumber(args.BlockNumber)
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), false)
block := self.xeth.EthBlockByNumber(args.BlockNumber)
if block == nil {
return nil, nil
} else {
return newHexNum(big.NewInt(int64(len(block.Transactions))).Bytes()), nil
}
return fmt.Sprintf("%#x", len(block.Transactions())), nil
}
func (self *ethApi) GetUncleCountByBlockHash(req *shared.Request) (interface{}, error) {
@ -249,12 +244,11 @@ func (self *ethApi) GetUncleCountByBlockHash(req *shared.Request) (interface{},
return nil, shared.NewDecodeParamError(err.Error())
}
raw := self.xeth.EthBlockByHash(args.Hash)
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), false)
block := self.xeth.EthBlockByHash(args.Hash)
if block == nil {
return nil, nil
}
return newHexNum(big.NewInt(int64(len(block.Uncles))).Bytes()), nil
return fmt.Sprintf("%#x", len(block.Uncles())), nil
}
func (self *ethApi) GetUncleCountByBlockNumber(req *shared.Request) (interface{}, error) {
@ -263,12 +257,11 @@ func (self *ethApi) GetUncleCountByBlockNumber(req *shared.Request) (interface{}
return nil, shared.NewDecodeParamError(err.Error())
}
raw := self.xeth.EthBlockByNumber(args.BlockNumber)
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), false)
block := self.xeth.EthBlockByNumber(args.BlockNumber)
if block == nil {
return nil, nil
}
return newHexNum(big.NewInt(int64(len(block.Uncles))).Bytes()), nil
return fmt.Sprintf("%#x", len(block.Uncles())), nil
}
func (self *ethApi) GetData(req *shared.Request) (interface{}, error) {
@ -377,8 +370,10 @@ func (self *ethApi) GetBlockByHash(req *shared.Request) (interface{}, error) {
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
block := self.xeth.EthBlockByHash(args.BlockHash)
if block == nil {
return nil, nil
}
return NewBlockRes(block, self.xeth.Td(block.Hash()), args.IncludeTxs), nil
}
@ -389,6 +384,9 @@ func (self *ethApi) GetBlockByNumber(req *shared.Request) (interface{}, error) {
}
block := self.xeth.EthBlockByNumber(args.BlockNumber)
if block == nil {
return nil, nil
}
return NewBlockRes(block, self.xeth.Td(block.Hash()), args.IncludeTxs), nil
}
@ -419,10 +417,10 @@ func (self *ethApi) GetTransactionByBlockHashAndIndex(req *shared.Request) (inte
}
raw := self.xeth.EthBlockByHash(args.Hash)
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), true)
if block == nil {
if raw == nil {
return nil, nil
}
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), true)
if args.Index >= int64(len(block.Transactions)) || args.Index < 0 {
return nil, nil
} else {
@ -437,10 +435,10 @@ func (self *ethApi) GetTransactionByBlockNumberAndIndex(req *shared.Request) (in
}
raw := self.xeth.EthBlockByNumber(args.BlockNumber)
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), true)
if block == nil {
if raw == nil {
return nil, nil
}
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), true)
if args.Index >= int64(len(block.Transactions)) || args.Index < 0 {
// return NewValidationError("Index", "does not exist")
return nil, nil
@ -455,10 +453,10 @@ func (self *ethApi) GetUncleByBlockHashAndIndex(req *shared.Request) (interface{
}
raw := self.xeth.EthBlockByHash(args.Hash)
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), false)
if block == nil {
if raw == nil {
return nil, nil
}
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), false)
if args.Index >= int64(len(block.Uncles)) || args.Index < 0 {
// return NewValidationError("Index", "does not exist")
return nil, nil
@ -473,10 +471,10 @@ func (self *ethApi) GetUncleByBlockNumberAndIndex(req *shared.Request) (interfac
}
raw := self.xeth.EthBlockByNumber(args.BlockNumber)
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), true)
if block == nil {
if raw == nil {
return nil, nil
}
block := NewBlockRes(raw, self.xeth.Td(raw.Hash()), true)
if args.Index >= int64(len(block.Uncles)) || args.Index < 0 {
return nil, nil
} else {