diff options
Diffstat (limited to 'vendor/github.com/json-iterator')
9 files changed, 138 insertions, 9 deletions
diff --git a/vendor/github.com/json-iterator/go/iter.go b/vendor/github.com/json-iterator/go/iter.go index 95ae54fbf..29b31cf78 100644 --- a/vendor/github.com/json-iterator/go/iter.go +++ b/vendor/github.com/json-iterator/go/iter.go @@ -74,6 +74,7 @@ type Iterator struct { buf []byte head int tail int + depth int captureStartedAt int captured []byte Error error @@ -88,6 +89,7 @@ func NewIterator(cfg API) *Iterator { buf: nil, head: 0, tail: 0, + depth: 0, } } @@ -99,6 +101,7 @@ func Parse(cfg API, reader io.Reader, bufSize int) *Iterator { buf: make([]byte, bufSize), head: 0, tail: 0, + depth: 0, } } @@ -110,6 +113,7 @@ func ParseBytes(cfg API, input []byte) *Iterator { buf: input, head: 0, tail: len(input), + depth: 0, } } @@ -128,6 +132,7 @@ func (iter *Iterator) Reset(reader io.Reader) *Iterator { iter.reader = reader iter.head = 0 iter.tail = 0 + iter.depth = 0 return iter } @@ -137,6 +142,7 @@ func (iter *Iterator) ResetBytes(input []byte) *Iterator { iter.buf = input iter.head = 0 iter.tail = len(input) + iter.depth = 0 return iter } @@ -320,3 +326,24 @@ func (iter *Iterator) Read() interface{} { return nil } } + +// limit maximum depth of nesting, as allowed by https://tools.ietf.org/html/rfc7159#section-9 +const maxDepth = 10000 + +func (iter *Iterator) incrementDepth() (success bool) { + iter.depth++ + if iter.depth <= maxDepth { + return true + } + iter.ReportError("incrementDepth", "exceeded max depth") + return false +} + +func (iter *Iterator) decrementDepth() (success bool) { + iter.depth-- + if iter.depth >= 0 { + return true + } + iter.ReportError("decrementDepth", "unexpected negative nesting") + return false +} diff --git a/vendor/github.com/json-iterator/go/iter_array.go b/vendor/github.com/json-iterator/go/iter_array.go index 6188cb457..204fe0e09 100644 --- a/vendor/github.com/json-iterator/go/iter_array.go +++ b/vendor/github.com/json-iterator/go/iter_array.go @@ -28,26 +28,32 @@ func (iter *Iterator) ReadArray() (ret bool) { func (iter *Iterator) ReadArrayCB(callback func(*Iterator) bool) (ret bool) { c := iter.nextToken() if c == '[' { + if !iter.incrementDepth() { + return false + } c = iter.nextToken() if c != ']' { iter.unreadByte() if !callback(iter) { + iter.decrementDepth() return false } c = iter.nextToken() for c == ',' { if !callback(iter) { + iter.decrementDepth() return false } c = iter.nextToken() } if c != ']' { iter.ReportError("ReadArrayCB", "expect ] in the end, but found "+string([]byte{c})) + iter.decrementDepth() return false } - return true + return iter.decrementDepth() } - return true + return iter.decrementDepth() } if c == 'n' { iter.skipThreeBytes('u', 'l', 'l') diff --git a/vendor/github.com/json-iterator/go/iter_object.go b/vendor/github.com/json-iterator/go/iter_object.go index 1c5757671..b65137114 100644 --- a/vendor/github.com/json-iterator/go/iter_object.go +++ b/vendor/github.com/json-iterator/go/iter_object.go @@ -112,6 +112,9 @@ func (iter *Iterator) ReadObjectCB(callback func(*Iterator, string) bool) bool { c := iter.nextToken() var field string if c == '{' { + if !iter.incrementDepth() { + return false + } c = iter.nextToken() if c == '"' { iter.unreadByte() @@ -121,6 +124,7 @@ func (iter *Iterator) ReadObjectCB(callback func(*Iterator, string) bool) bool { iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c})) } if !callback(iter, field) { + iter.decrementDepth() return false } c = iter.nextToken() @@ -131,20 +135,23 @@ func (iter *Iterator) ReadObjectCB(callback func(*Iterator, string) bool) bool { iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c})) } if !callback(iter, field) { + iter.decrementDepth() return false } c = iter.nextToken() } if c != '}' { iter.ReportError("ReadObjectCB", `object not ended with }`) + iter.decrementDepth() return false } - return true + return iter.decrementDepth() } if c == '}' { - return true + return iter.decrementDepth() } iter.ReportError("ReadObjectCB", `expect " after }, but found `+string([]byte{c})) + iter.decrementDepth() return false } if c == 'n' { @@ -159,15 +166,20 @@ func (iter *Iterator) ReadObjectCB(callback func(*Iterator, string) bool) bool { func (iter *Iterator) ReadMapCB(callback func(*Iterator, string) bool) bool { c := iter.nextToken() if c == '{' { + if !iter.incrementDepth() { + return false + } c = iter.nextToken() if c == '"' { iter.unreadByte() field := iter.ReadString() if iter.nextToken() != ':' { iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c})) + iter.decrementDepth() return false } if !callback(iter, field) { + iter.decrementDepth() return false } c = iter.nextToken() @@ -175,23 +187,27 @@ func (iter *Iterator) ReadMapCB(callback func(*Iterator, string) bool) bool { field = iter.ReadString() if iter.nextToken() != ':' { iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c})) + iter.decrementDepth() return false } if !callback(iter, field) { + iter.decrementDepth() return false } c = iter.nextToken() } if c != '}' { iter.ReportError("ReadMapCB", `object not ended with }`) + iter.decrementDepth() return false } - return true + return iter.decrementDepth() } if c == '}' { - return true + return iter.decrementDepth() } iter.ReportError("ReadMapCB", `expect " after }, but found `+string([]byte{c})) + iter.decrementDepth() return false } if c == 'n' { diff --git a/vendor/github.com/json-iterator/go/iter_skip_sloppy.go b/vendor/github.com/json-iterator/go/iter_skip_sloppy.go index 8fcdc3b69..9303de41e 100644 --- a/vendor/github.com/json-iterator/go/iter_skip_sloppy.go +++ b/vendor/github.com/json-iterator/go/iter_skip_sloppy.go @@ -22,6 +22,9 @@ func (iter *Iterator) skipNumber() { func (iter *Iterator) skipArray() { level := 1 + if !iter.incrementDepth() { + return + } for { for i := iter.head; i < iter.tail; i++ { switch iter.buf[i] { @@ -31,8 +34,14 @@ func (iter *Iterator) skipArray() { i = iter.head - 1 // it will be i++ soon case '[': // If open symbol, increase level level++ + if !iter.incrementDepth() { + return + } case ']': // If close symbol, increase level level-- + if !iter.decrementDepth() { + return + } // If we have returned to the original level, we're done if level == 0 { @@ -50,6 +59,10 @@ func (iter *Iterator) skipArray() { func (iter *Iterator) skipObject() { level := 1 + if !iter.incrementDepth() { + return + } + for { for i := iter.head; i < iter.tail; i++ { switch iter.buf[i] { @@ -59,8 +72,14 @@ func (iter *Iterator) skipObject() { i = iter.head - 1 // it will be i++ soon case '{': // If open symbol, increase level level++ + if !iter.incrementDepth() { + return + } case '}': // If close symbol, increase level level-- + if !iter.decrementDepth() { + return + } // If we have returned to the original level, we're done if level == 0 { diff --git a/vendor/github.com/json-iterator/go/reflect.go b/vendor/github.com/json-iterator/go/reflect.go index 4459e203f..74974ba74 100644 --- a/vendor/github.com/json-iterator/go/reflect.go +++ b/vendor/github.com/json-iterator/go/reflect.go @@ -60,6 +60,7 @@ func (b *ctx) append(prefix string) *ctx { // ReadVal copy the underlying JSON into go interface, same as json.Unmarshal func (iter *Iterator) ReadVal(obj interface{}) { + depth := iter.depth cacheKey := reflect2.RTypeOf(obj) decoder := iter.cfg.getDecoderFromCache(cacheKey) if decoder == nil { @@ -76,6 +77,10 @@ func (iter *Iterator) ReadVal(obj interface{}) { return } decoder.Decode(ptr, iter) + if iter.depth != depth { + iter.ReportError("ReadVal", "unexpected mismatched nesting") + return + } } // WriteVal copy the go interface into underlying JSON, same as json.Marshal diff --git a/vendor/github.com/json-iterator/go/reflect_extension.go b/vendor/github.com/json-iterator/go/reflect_extension.go index 05e8fbf1f..e27e8d191 100644 --- a/vendor/github.com/json-iterator/go/reflect_extension.go +++ b/vendor/github.com/json-iterator/go/reflect_extension.go @@ -341,10 +341,10 @@ func describeStruct(ctx *ctx, typ reflect2.Type) *StructDescriptor { if ctx.onlyTaggedField && !hastag && !field.Anonymous() { continue } - tagParts := strings.Split(tag, ",") if tag == "-" { continue } + tagParts := strings.Split(tag, ",") if field.Anonymous() && (tag == "" || tagParts[0] == "") { if field.Type().Kind() == reflect.Struct { structDescriptor := describeStruct(ctx, field.Type()) diff --git a/vendor/github.com/json-iterator/go/reflect_map.go b/vendor/github.com/json-iterator/go/reflect_map.go index 547b4421e..08e9a3912 100644 --- a/vendor/github.com/json-iterator/go/reflect_map.go +++ b/vendor/github.com/json-iterator/go/reflect_map.go @@ -249,6 +249,10 @@ type mapEncoder struct { } func (encoder *mapEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { + if *(*unsafe.Pointer)(ptr) == nil { + stream.WriteNil() + return + } stream.WriteObjectStart() iter := encoder.mapType.UnsafeIterate(ptr) for i := 0; iter.HasNext(); i++ { diff --git a/vendor/github.com/json-iterator/go/reflect_marshaler.go b/vendor/github.com/json-iterator/go/reflect_marshaler.go index fea50719d..3e21f3756 100644 --- a/vendor/github.com/json-iterator/go/reflect_marshaler.go +++ b/vendor/github.com/json-iterator/go/reflect_marshaler.go @@ -3,8 +3,9 @@ package jsoniter import ( "encoding" "encoding/json" - "github.com/modern-go/reflect2" "unsafe" + + "github.com/modern-go/reflect2" ) var marshalerType = reflect2.TypeOfPtr((*json.Marshaler)(nil)).Elem() @@ -93,10 +94,17 @@ func (encoder *marshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { stream.WriteNil() return } - bytes, err := json.Marshal(obj) + marshaler := obj.(json.Marshaler) + bytes, err := marshaler.MarshalJSON() if err != nil { stream.Error = err } else { + // html escape was already done by jsoniter + // but the extra '\n' should be trimed + l := len(bytes) + if l > 0 && bytes[l-1] == '\n' { + bytes = bytes[:l-1] + } stream.Write(bytes) } } diff --git a/vendor/github.com/json-iterator/go/reflect_struct_decoder.go b/vendor/github.com/json-iterator/go/reflect_struct_decoder.go index 932641ac4..5ad5cc561 100644 --- a/vendor/github.com/json-iterator/go/reflect_struct_decoder.go +++ b/vendor/github.com/json-iterator/go/reflect_struct_decoder.go @@ -500,6 +500,9 @@ func (decoder *generalStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) if !iter.readObjectStart() { return } + if !iter.incrementDepth() { + return + } var c byte for c = ','; c == ','; c = iter.nextToken() { decoder.decodeOneField(ptr, iter) @@ -510,6 +513,7 @@ func (decoder *generalStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) if c != '}' { iter.ReportError("struct Decode", `expect }, but found `+string([]byte{c})) } + iter.decrementDepth() } func (decoder *generalStructDecoder) decodeOneField(ptr unsafe.Pointer, iter *Iterator) { @@ -571,6 +575,9 @@ func (decoder *oneFieldStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) if !iter.readObjectStart() { return } + if !iter.incrementDepth() { + return + } for { if iter.readFieldHash() == decoder.fieldHash { decoder.fieldDecoder.Decode(ptr, iter) @@ -584,6 +591,7 @@ func (decoder *oneFieldStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) if iter.Error != nil && iter.Error != io.EOF { iter.Error = fmt.Errorf("%v.%s", decoder.typ, iter.Error.Error()) } + iter.decrementDepth() } type twoFieldsStructDecoder struct { @@ -598,6 +606,9 @@ func (decoder *twoFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator if !iter.readObjectStart() { return } + if !iter.incrementDepth() { + return + } for { switch iter.readFieldHash() { case decoder.fieldHash1: @@ -614,6 +625,7 @@ func (decoder *twoFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator if iter.Error != nil && iter.Error != io.EOF { iter.Error = fmt.Errorf("%v.%s", decoder.typ, iter.Error.Error()) } + iter.decrementDepth() } type threeFieldsStructDecoder struct { @@ -630,6 +642,9 @@ func (decoder *threeFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterat if !iter.readObjectStart() { return } + if !iter.incrementDepth() { + return + } for { switch iter.readFieldHash() { case decoder.fieldHash1: @@ -648,6 +663,7 @@ func (decoder *threeFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterat if iter.Error != nil && iter.Error != io.EOF { iter.Error = fmt.Errorf("%v.%s", decoder.typ, iter.Error.Error()) } + iter.decrementDepth() } type fourFieldsStructDecoder struct { @@ -666,6 +682,9 @@ func (decoder *fourFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterato if !iter.readObjectStart() { return } + if !iter.incrementDepth() { + return + } for { switch iter.readFieldHash() { case decoder.fieldHash1: @@ -686,6 +705,7 @@ func (decoder *fourFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterato if iter.Error != nil && iter.Error != io.EOF { iter.Error = fmt.Errorf("%v.%s", decoder.typ, iter.Error.Error()) } + iter.decrementDepth() } type fiveFieldsStructDecoder struct { @@ -706,6 +726,9 @@ func (decoder *fiveFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterato if !iter.readObjectStart() { return } + if !iter.incrementDepth() { + return + } for { switch iter.readFieldHash() { case decoder.fieldHash1: @@ -728,6 +751,7 @@ func (decoder *fiveFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterato if iter.Error != nil && iter.Error != io.EOF { iter.Error = fmt.Errorf("%v.%s", decoder.typ, iter.Error.Error()) } + iter.decrementDepth() } type sixFieldsStructDecoder struct { @@ -750,6 +774,9 @@ func (decoder *sixFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator if !iter.readObjectStart() { return } + if !iter.incrementDepth() { + return + } for { switch iter.readFieldHash() { case decoder.fieldHash1: @@ -774,6 +801,7 @@ func (decoder *sixFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator if iter.Error != nil && iter.Error != io.EOF { iter.Error = fmt.Errorf("%v.%s", decoder.typ, iter.Error.Error()) } + iter.decrementDepth() } type sevenFieldsStructDecoder struct { @@ -798,6 +826,9 @@ func (decoder *sevenFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterat if !iter.readObjectStart() { return } + if !iter.incrementDepth() { + return + } for { switch iter.readFieldHash() { case decoder.fieldHash1: @@ -824,6 +855,7 @@ func (decoder *sevenFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterat if iter.Error != nil && iter.Error != io.EOF { iter.Error = fmt.Errorf("%v.%s", decoder.typ, iter.Error.Error()) } + iter.decrementDepth() } type eightFieldsStructDecoder struct { @@ -850,6 +882,9 @@ func (decoder *eightFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterat if !iter.readObjectStart() { return } + if !iter.incrementDepth() { + return + } for { switch iter.readFieldHash() { case decoder.fieldHash1: @@ -878,6 +913,7 @@ func (decoder *eightFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterat if iter.Error != nil && iter.Error != io.EOF { iter.Error = fmt.Errorf("%v.%s", decoder.typ, iter.Error.Error()) } + iter.decrementDepth() } type nineFieldsStructDecoder struct { @@ -906,6 +942,9 @@ func (decoder *nineFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterato if !iter.readObjectStart() { return } + if !iter.incrementDepth() { + return + } for { switch iter.readFieldHash() { case decoder.fieldHash1: @@ -936,6 +975,7 @@ func (decoder *nineFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterato if iter.Error != nil && iter.Error != io.EOF { iter.Error = fmt.Errorf("%v.%s", decoder.typ, iter.Error.Error()) } + iter.decrementDepth() } type tenFieldsStructDecoder struct { @@ -966,6 +1006,9 @@ func (decoder *tenFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator if !iter.readObjectStart() { return } + if !iter.incrementDepth() { + return + } for { switch iter.readFieldHash() { case decoder.fieldHash1: @@ -998,6 +1041,7 @@ func (decoder *tenFieldsStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator if iter.Error != nil && iter.Error != io.EOF { iter.Error = fmt.Errorf("%v.%s", decoder.typ, iter.Error.Error()) } + iter.decrementDepth() } type structFieldDecoder struct { |