[ 
https://issues.apache.org/jira/browse/THRIFT-4626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16601177#comment-16601177
 ] 

ASF GitHub Bot commented on THRIFT-4626:
----------------------------------------

jeking3 closed pull request #1589: THRIFT-4626: Remove checking of remaining 
bytes in the Go library.
URL: https://github.com/apache/thrift/pull/1589
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git a/lib/go/thrift/binary_protocol.go b/lib/go/thrift/binary_protocol.go
index de0f6a7a5c..1f90bf4351 100644
--- a/lib/go/thrift/binary_protocol.go
+++ b/lib/go/thrift/binary_protocol.go
@@ -448,9 +448,6 @@ func (p *TBinaryProtocol) ReadBinary() ([]byte, error) {
        if size < 0 {
                return nil, invalidDataLength
        }
-       if uint64(size) > p.trans.RemainingBytes() {
-               return nil, invalidDataLength
-       }
 
        isize := int(size)
        buf := make([]byte, isize)
@@ -481,9 +478,6 @@ func (p *TBinaryProtocol) readStringBody(size int32) (value 
string, err error) {
        if size < 0 {
                return "", nil
        }
-       if uint64(size) > p.trans.RemainingBytes() {
-               return "", invalidDataLength
-       }
 
        var (
                buf bytes.Buffer
diff --git a/lib/go/thrift/compact_protocol.go 
b/lib/go/thrift/compact_protocol.go
index 66fbf5c335..1900d50c3b 100644
--- a/lib/go/thrift/compact_protocol.go
+++ b/lib/go/thrift/compact_protocol.go
@@ -562,9 +562,6 @@ func (p *TCompactProtocol) ReadString() (value string, err 
error) {
        if length < 0 {
                return "", invalidDataLength
        }
-       if uint64(length) > p.trans.RemainingBytes() {
-               return "", invalidDataLength
-       }
 
        if length == 0 {
                return "", nil
@@ -591,9 +588,6 @@ func (p *TCompactProtocol) ReadBinary() (value []byte, err 
error) {
        if length < 0 {
                return nil, invalidDataLength
        }
-       if uint64(length) > p.trans.RemainingBytes() {
-               return nil, invalidDataLength
-       }
 
        buf := make([]byte, length)
        _, e = io.ReadFull(p.trans, buf)
diff --git a/lib/go/thrift/compact_protocol_test.go 
b/lib/go/thrift/compact_protocol_test.go
index f940b4e15a..65f77f2c42 100644
--- a/lib/go/thrift/compact_protocol_test.go
+++ b/lib/go/thrift/compact_protocol_test.go
@@ -26,11 +26,18 @@ import (
 
 func TestReadWriteCompactProtocol(t *testing.T) {
        ReadWriteProtocolTest(t, NewTCompactProtocolFactory())
+
        transports := []TTransport{
                NewTMemoryBuffer(),
                NewStreamTransportRW(bytes.NewBuffer(make([]byte, 0, 16384))),
                NewTFramedTransport(NewTMemoryBuffer()),
        }
+
+       zlib0, _ := NewTZlibTransport(NewTMemoryBuffer(), 0)
+       zlib6, _ := NewTZlibTransport(NewTMemoryBuffer(), 6)
+       zlib9, _ := NewTZlibTransport(NewTFramedTransport(NewTMemoryBuffer()), 
9)
+       transports = append(transports, zlib0, zlib6, zlib9)
+
        for _, trans := range transports {
                p := NewTCompactProtocol(trans)
                ReadWriteBool(t, p, trans)
diff --git a/lib/go/thrift/protocol_test.go b/lib/go/thrift/protocol_test.go
index e9118da88f..944055c0b4 100644
--- a/lib/go/thrift/protocol_test.go
+++ b/lib/go/thrift/protocol_test.go
@@ -32,7 +32,6 @@ import (
 const PROTOCOL_BINARY_DATA_SIZE = 155
 
 var (
-       data           string // test data for writing
        protocol_bdata []byte // test data for writing; same as data
        BOOL_VALUES    []bool
        BYTE_VALUES    []int8
@@ -48,7 +47,6 @@ func init() {
        for i := 0; i < PROTOCOL_BINARY_DATA_SIZE; i++ {
                protocol_bdata[i] = byte((i + 'a') % 255)
        }
-       data = string(protocol_bdata)
        BOOL_VALUES = []bool{false, true, false, false, true}
        BYTE_VALUES = []int8{117, 0, 1, 32, 127, -128, -1}
        INT16_VALUES = []int16{459, 0, 1, -1, -128, 127, 32767, -32768}
@@ -121,6 +119,9 @@ func ReadWriteProtocolTest(t *testing.T, protocolFactory 
TProtocolFactory) {
                NewTMemoryBufferTransportFactory(1024),
                NewStreamTransportFactory(buf, buf, true),
                
NewTFramedTransportFactory(NewTMemoryBufferTransportFactory(1024)),
+               NewTZlibTransportFactoryWithFactory(0, 
NewTMemoryBufferTransportFactory(1024)),
+               NewTZlibTransportFactoryWithFactory(6, 
NewTMemoryBufferTransportFactory(1024)),
+               NewTZlibTransportFactoryWithFactory(9, 
NewTFramedTransportFactory(NewTMemoryBufferTransportFactory(1024))),
                NewTHttpPostClientTransportFactory("http://"; + addr.String()),
        }
        for _, tf := range transports {


 

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> Communication crash when using binary/compact protocol and zlib transport
> -------------------------------------------------------------------------
>
>                 Key: THRIFT-4626
>                 URL: https://issues.apache.org/jira/browse/THRIFT-4626
>             Project: Thrift
>          Issue Type: Bug
>          Components: Go - Library
>    Affects Versions: 0.11.0
>         Environment: Ubuntu 18.04
> Go 1.10.1
>            Reporter: Vyacheslav Kulakov
>            Priority: Major
>             Fix For: 0.12.0
>
>
> Reading a request on the server side or reading a response on the client side 
> always fail with the "Invalid data length" error when using the 
> binary/compact protocol and the zlib transport, which wraps the framed 
> transport.
> In my project, I use the following code on the server side (only for testing):
> {code:go}
> processor := flume.NewThriftSourceProtocolProcessor(protocol)
> serverTransport, _ := thrift.NewTServerSocketTimeout(address, timeout)
> protocolFactory := thrift.NewTBinaryProtocolFactoryDefault()
> transportFactory := 
> thrift.NewTFramedTransportFactory(thrift.NewTTransportFactory())
> transportFactory = thrift.NewTZlibTransportFactoryWithFactory(level, 
> transportFactory)
> server := thrift.NewTSimpleServer4(
>       processor,
>       serverTransport,
>       transportFactory,
>       protocolFactory,
> )
> {code}
> and following code on the client side:
> {code:go}
> factory := thrift.NewTBinaryProtocolFactoryDefault()
> transport := thrift.TTransport(thrift.NewTFramedTransport(socket))
> transport, err = thrift.NewTZlibTransport(transport, compressionLevel)
> if err != nil {
>       return err
> }
> err = transport.Open()
> if err != nil {
>       return err
> }
> client := flume.NewThriftSourceProtocolClient(
>       thrift.NewTStandardClient(
>               factory.GetProtocol(transport),
>               factory.GetProtocol(transport),
>       ),
> )
> {code}
> When I send data from the client to the server I always get the "EOF" error 
> on the client and the "Invalid data length" error on the server. If I use the 
> compact protocol the errors stay at their places. 
> I investigated Go library code and found a reason of that errors: the 
> protocol invoke the RemainingBytes method on the zlib transport and it always 
> return zero because all bytes were already read from a frame and were stored 
> in a decompressor buffer. But we can't access to this buffer to obtain 
> correct number of remaining bytes. So this combination of protocols and 
> transports can't work together at all.



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