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Diffstat (limited to 'vendor/go.opentelemetry.io/auto/sdk')
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diff --git a/vendor/go.opentelemetry.io/auto/sdk/CONTRIBUTING.md b/vendor/go.opentelemetry.io/auto/sdk/CONTRIBUTING.md new file mode 100644 index 000000000..773c9b643 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/CONTRIBUTING.md @@ -0,0 +1,27 @@ +# Contributing to go.opentelemetry.io/auto/sdk + +The `go.opentelemetry.io/auto/sdk` module is a purpose built OpenTelemetry SDK. +It is designed to be: + +0. An OpenTelemetry compliant SDK +1. Instrumented by auto-instrumentation (serializable into OTLP JSON) +2. Lightweight +3. User-friendly + +These design choices are listed in the order of their importance. + +The primary design goal of this module is to be an OpenTelemetry SDK. +This means that it needs to implement the Go APIs found in `go.opentelemetry.io/otel`. + +Having met the requirement of SDK compliance, this module needs to provide code that the `go.opentelemetry.io/auto` module can instrument. +The chosen approach to meet this goal is to ensure the telemetry from the SDK is serializable into JSON encoded OTLP. +This ensures then that the serialized form is compatible with other OpenTelemetry systems, and the auto-instrumentation can use these systems to deserialize any telemetry it is sent. + +Outside of these first two goals, the intended use becomes relevant. +This package is intended to be used in the `go.opentelemetry.io/otel` global API as a default when the auto-instrumentation is running. +Because of this, this package needs to not add unnecessary dependencies to that API. +Ideally, it adds none. +It also needs to operate efficiently. + +Finally, this module is designed to be user-friendly to Go development. +It hides complexity in order to provide simpler APIs when the previous goals can all still be met. diff --git a/vendor/go.opentelemetry.io/auto/sdk/LICENSE b/vendor/go.opentelemetry.io/auto/sdk/LICENSE new file mode 100644 index 000000000..261eeb9e9 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/go.opentelemetry.io/auto/sdk/VERSIONING.md b/vendor/go.opentelemetry.io/auto/sdk/VERSIONING.md new file mode 100644 index 000000000..088d19a6c --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/VERSIONING.md @@ -0,0 +1,15 @@ +# Versioning + +This document describes the versioning policy for this module. +This policy is designed so the following goals can be achieved. + +**Users are provided a codebase of value that is stable and secure.** + +## Policy + +* Versioning of this module will be idiomatic of a Go project using [Go modules](https://github.com/golang/go/wiki/Modules). + * [Semantic import versioning](https://github.com/golang/go/wiki/Modules#semantic-import-versioning) will be used. + * Versions will comply with [semver 2.0](https://semver.org/spec/v2.0.0.html). + * Any `v2` or higher version of this module will be included as a `/vN` at the end of the module path used in `go.mod` files and in the package import path. + +* GitHub releases will be made for all releases. diff --git a/vendor/go.opentelemetry.io/auto/sdk/doc.go b/vendor/go.opentelemetry.io/auto/sdk/doc.go new file mode 100644 index 000000000..ad73d8cb9 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/doc.go @@ -0,0 +1,14 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +/* +Package sdk provides an auto-instrumentable OpenTelemetry SDK. + +An [go.opentelemetry.io/auto.Instrumentation] can be configured to target the +process running this SDK. In that case, all telemetry the SDK produces will be +processed and handled by that [go.opentelemetry.io/auto.Instrumentation]. + +By default, if there is no [go.opentelemetry.io/auto.Instrumentation] set to +auto-instrument the SDK, the SDK will not generate any telemetry. +*/ +package sdk diff --git a/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/attr.go b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/attr.go new file mode 100644 index 000000000..af6ef171f --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/attr.go @@ -0,0 +1,58 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package telemetry + +// Attr is a key-value pair. +type Attr struct { + Key string `json:"key,omitempty"` + Value Value `json:"value,omitempty"` +} + +// String returns an Attr for a string value. +func String(key, value string) Attr { + return Attr{key, StringValue(value)} +} + +// Int64 returns an Attr for an int64 value. +func Int64(key string, value int64) Attr { + return Attr{key, Int64Value(value)} +} + +// Int returns an Attr for an int value. +func Int(key string, value int) Attr { + return Int64(key, int64(value)) +} + +// Float64 returns an Attr for a float64 value. +func Float64(key string, value float64) Attr { + return Attr{key, Float64Value(value)} +} + +// Bool returns an Attr for a bool value. +func Bool(key string, value bool) Attr { + return Attr{key, BoolValue(value)} +} + +// Bytes returns an Attr for a []byte value. +// The passed slice must not be changed after it is passed. +func Bytes(key string, value []byte) Attr { + return Attr{key, BytesValue(value)} +} + +// Slice returns an Attr for a []Value value. +// The passed slice must not be changed after it is passed. +func Slice(key string, value ...Value) Attr { + return Attr{key, SliceValue(value...)} +} + +// Map returns an Attr for a map value. +// The passed slice must not be changed after it is passed. +func Map(key string, value ...Attr) Attr { + return Attr{key, MapValue(value...)} +} + +// Equal returns if a is equal to b. +func (a Attr) Equal(b Attr) bool { + return a.Key == b.Key && a.Value.Equal(b.Value) +} diff --git a/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/doc.go b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/doc.go new file mode 100644 index 000000000..949e2165c --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/doc.go @@ -0,0 +1,8 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +/* +Package telemetry provides a lightweight representations of OpenTelemetry +telemetry that is compatible with the OTLP JSON protobuf encoding. +*/ +package telemetry diff --git a/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/id.go b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/id.go new file mode 100644 index 000000000..e854d7e84 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/id.go @@ -0,0 +1,103 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package telemetry + +import ( + "encoding/hex" + "errors" + "fmt" +) + +const ( + traceIDSize = 16 + spanIDSize = 8 +) + +// TraceID is a custom data type that is used for all trace IDs. +type TraceID [traceIDSize]byte + +// String returns the hex string representation form of a TraceID. +func (tid TraceID) String() string { + return hex.EncodeToString(tid[:]) +} + +// IsEmpty returns false if id contains at least one non-zero byte. +func (tid TraceID) IsEmpty() bool { + return tid == [traceIDSize]byte{} +} + +// MarshalJSON converts the trace ID into a hex string enclosed in quotes. +func (tid TraceID) MarshalJSON() ([]byte, error) { + if tid.IsEmpty() { + return []byte(`""`), nil + } + return marshalJSON(tid[:]) +} + +// UnmarshalJSON inflates the trace ID from hex string, possibly enclosed in +// quotes. +func (tid *TraceID) UnmarshalJSON(data []byte) error { + *tid = [traceIDSize]byte{} + return unmarshalJSON(tid[:], data) +} + +// SpanID is a custom data type that is used for all span IDs. +type SpanID [spanIDSize]byte + +// String returns the hex string representation form of a SpanID. +func (sid SpanID) String() string { + return hex.EncodeToString(sid[:]) +} + +// IsEmpty returns true if the span ID contains at least one non-zero byte. +func (sid SpanID) IsEmpty() bool { + return sid == [spanIDSize]byte{} +} + +// MarshalJSON converts span ID into a hex string enclosed in quotes. +func (sid SpanID) MarshalJSON() ([]byte, error) { + if sid.IsEmpty() { + return []byte(`""`), nil + } + return marshalJSON(sid[:]) +} + +// UnmarshalJSON decodes span ID from hex string, possibly enclosed in quotes. +func (sid *SpanID) UnmarshalJSON(data []byte) error { + *sid = [spanIDSize]byte{} + return unmarshalJSON(sid[:], data) +} + +// marshalJSON converts id into a hex string enclosed in quotes. +func marshalJSON(id []byte) ([]byte, error) { + // Plus 2 quote chars at the start and end. + hexLen := hex.EncodedLen(len(id)) + 2 + + b := make([]byte, hexLen) + hex.Encode(b[1:hexLen-1], id) + b[0], b[hexLen-1] = '"', '"' + + return b, nil +} + +// unmarshalJSON inflates trace id from hex string, possibly enclosed in quotes. +func unmarshalJSON(dst []byte, src []byte) error { + if l := len(src); l >= 2 && src[0] == '"' && src[l-1] == '"' { + src = src[1 : l-1] + } + nLen := len(src) + if nLen == 0 { + return nil + } + + if len(dst) != hex.DecodedLen(nLen) { + return errors.New("invalid length for ID") + } + + _, err := hex.Decode(dst, src) + if err != nil { + return fmt.Errorf("cannot unmarshal ID from string '%s': %w", string(src), err) + } + return nil +} diff --git a/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/number.go b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/number.go new file mode 100644 index 000000000..29e629d66 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/number.go @@ -0,0 +1,67 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package telemetry + +import ( + "encoding/json" + "strconv" +) + +// protoInt64 represents the protobuf encoding of integers which can be either +// strings or integers. +type protoInt64 int64 + +// Int64 returns the protoInt64 as an int64. +func (i *protoInt64) Int64() int64 { return int64(*i) } + +// UnmarshalJSON decodes both strings and integers. +func (i *protoInt64) UnmarshalJSON(data []byte) error { + if data[0] == '"' { + var str string + if err := json.Unmarshal(data, &str); err != nil { + return err + } + parsedInt, err := strconv.ParseInt(str, 10, 64) + if err != nil { + return err + } + *i = protoInt64(parsedInt) + } else { + var parsedInt int64 + if err := json.Unmarshal(data, &parsedInt); err != nil { + return err + } + *i = protoInt64(parsedInt) + } + return nil +} + +// protoUint64 represents the protobuf encoding of integers which can be either +// strings or integers. +type protoUint64 uint64 + +// Int64 returns the protoUint64 as a uint64. +func (i *protoUint64) Uint64() uint64 { return uint64(*i) } + +// UnmarshalJSON decodes both strings and integers. +func (i *protoUint64) UnmarshalJSON(data []byte) error { + if data[0] == '"' { + var str string + if err := json.Unmarshal(data, &str); err != nil { + return err + } + parsedUint, err := strconv.ParseUint(str, 10, 64) + if err != nil { + return err + } + *i = protoUint64(parsedUint) + } else { + var parsedUint uint64 + if err := json.Unmarshal(data, &parsedUint); err != nil { + return err + } + *i = protoUint64(parsedUint) + } + return nil +} diff --git a/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/resource.go b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/resource.go new file mode 100644 index 000000000..cecad8bae --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/resource.go @@ -0,0 +1,66 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package telemetry + +import ( + "bytes" + "encoding/json" + "errors" + "fmt" + "io" +) + +// Resource information. +type Resource struct { + // Attrs are the set of attributes that describe the resource. Attribute + // keys MUST be unique (it is not allowed to have more than one attribute + // with the same key). + Attrs []Attr `json:"attributes,omitempty"` + // DroppedAttrs is the number of dropped attributes. If the value + // is 0, then no attributes were dropped. + DroppedAttrs uint32 `json:"droppedAttributesCount,omitempty"` +} + +// UnmarshalJSON decodes the OTLP formatted JSON contained in data into r. +func (r *Resource) UnmarshalJSON(data []byte) error { + decoder := json.NewDecoder(bytes.NewReader(data)) + + t, err := decoder.Token() + if err != nil { + return err + } + if t != json.Delim('{') { + return errors.New("invalid Resource type") + } + + for decoder.More() { + keyIface, err := decoder.Token() + if err != nil { + if errors.Is(err, io.EOF) { + // Empty. + return nil + } + return err + } + + key, ok := keyIface.(string) + if !ok { + return fmt.Errorf("invalid Resource field: %#v", keyIface) + } + + switch key { + case "attributes": + err = decoder.Decode(&r.Attrs) + case "droppedAttributesCount", "dropped_attributes_count": + err = decoder.Decode(&r.DroppedAttrs) + default: + // Skip unknown. + } + + if err != nil { + return err + } + } + return nil +} diff --git a/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/scope.go b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/scope.go new file mode 100644 index 000000000..b6f2e28d4 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/scope.go @@ -0,0 +1,67 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package telemetry + +import ( + "bytes" + "encoding/json" + "errors" + "fmt" + "io" +) + +// Scope is the identifying values of the instrumentation scope. +type Scope struct { + Name string `json:"name,omitempty"` + Version string `json:"version,omitempty"` + Attrs []Attr `json:"attributes,omitempty"` + DroppedAttrs uint32 `json:"droppedAttributesCount,omitempty"` +} + +// UnmarshalJSON decodes the OTLP formatted JSON contained in data into r. +func (s *Scope) UnmarshalJSON(data []byte) error { + decoder := json.NewDecoder(bytes.NewReader(data)) + + t, err := decoder.Token() + if err != nil { + return err + } + if t != json.Delim('{') { + return errors.New("invalid Scope type") + } + + for decoder.More() { + keyIface, err := decoder.Token() + if err != nil { + if errors.Is(err, io.EOF) { + // Empty. + return nil + } + return err + } + + key, ok := keyIface.(string) + if !ok { + return fmt.Errorf("invalid Scope field: %#v", keyIface) + } + + switch key { + case "name": + err = decoder.Decode(&s.Name) + case "version": + err = decoder.Decode(&s.Version) + case "attributes": + err = decoder.Decode(&s.Attrs) + case "droppedAttributesCount", "dropped_attributes_count": + err = decoder.Decode(&s.DroppedAttrs) + default: + // Skip unknown. + } + + if err != nil { + return err + } + } + return nil +} diff --git a/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/span.go b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/span.go new file mode 100644 index 000000000..a13a6b733 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/span.go @@ -0,0 +1,456 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package telemetry + +import ( + "bytes" + "encoding/hex" + "encoding/json" + "errors" + "fmt" + "io" + "time" +) + +// A Span represents a single operation performed by a single component of the +// system. +type Span struct { + // A unique identifier for a trace. All spans from the same trace share + // the same `trace_id`. The ID is a 16-byte array. An ID with all zeroes OR + // of length other than 16 bytes is considered invalid (empty string in OTLP/JSON + // is zero-length and thus is also invalid). + // + // This field is required. + TraceID TraceID `json:"traceId,omitempty"` + // A unique identifier for a span within a trace, assigned when the span + // is created. The ID is an 8-byte array. An ID with all zeroes OR of length + // other than 8 bytes is considered invalid (empty string in OTLP/JSON + // is zero-length and thus is also invalid). + // + // This field is required. + SpanID SpanID `json:"spanId,omitempty"` + // trace_state conveys information about request position in multiple distributed tracing graphs. + // It is a trace_state in w3c-trace-context format: https://www.w3.org/TR/trace-context/#tracestate-header + // See also https://github.com/w3c/distributed-tracing for more details about this field. + TraceState string `json:"traceState,omitempty"` + // The `span_id` of this span's parent span. If this is a root span, then this + // field must be empty. The ID is an 8-byte array. + ParentSpanID SpanID `json:"parentSpanId,omitempty"` + // Flags, a bit field. + // + // Bits 0-7 (8 least significant bits) are the trace flags as defined in W3C Trace + // Context specification. To read the 8-bit W3C trace flag, use + // `flags & SPAN_FLAGS_TRACE_FLAGS_MASK`. + // + // See https://www.w3.org/TR/trace-context-2/#trace-flags for the flag definitions. + // + // Bits 8 and 9 represent the 3 states of whether a span's parent + // is remote. The states are (unknown, is not remote, is remote). + // To read whether the value is known, use `(flags & SPAN_FLAGS_CONTEXT_HAS_IS_REMOTE_MASK) != 0`. + // To read whether the span is remote, use `(flags & SPAN_FLAGS_CONTEXT_IS_REMOTE_MASK) != 0`. + // + // When creating span messages, if the message is logically forwarded from another source + // with an equivalent flags fields (i.e., usually another OTLP span message), the field SHOULD + // be copied as-is. If creating from a source that does not have an equivalent flags field + // (such as a runtime representation of an OpenTelemetry span), the high 22 bits MUST + // be set to zero. + // Readers MUST NOT assume that bits 10-31 (22 most significant bits) will be zero. + // + // [Optional]. + Flags uint32 `json:"flags,omitempty"` + // A description of the span's operation. + // + // For example, the name can be a qualified method name or a file name + // and a line number where the operation is called. A best practice is to use + // the same display name at the same call point in an application. + // This makes it easier to correlate spans in different traces. + // + // This field is semantically required to be set to non-empty string. + // Empty value is equivalent to an unknown span name. + // + // This field is required. + Name string `json:"name"` + // Distinguishes between spans generated in a particular context. For example, + // two spans with the same name may be distinguished using `CLIENT` (caller) + // and `SERVER` (callee) to identify queueing latency associated with the span. + Kind SpanKind `json:"kind,omitempty"` + // start_time_unix_nano is the start time of the span. On the client side, this is the time + // kept by the local machine where the span execution starts. On the server side, this + // is the time when the server's application handler starts running. + // Value is UNIX Epoch time in nanoseconds since 00:00:00 UTC on 1 January 1970. + // + // This field is semantically required and it is expected that end_time >= start_time. + StartTime time.Time `json:"startTimeUnixNano,omitempty"` + // end_time_unix_nano is the end time of the span. On the client side, this is the time + // kept by the local machine where the span execution ends. On the server side, this + // is the time when the server application handler stops running. + // Value is UNIX Epoch time in nanoseconds since 00:00:00 UTC on 1 January 1970. + // + // This field is semantically required and it is expected that end_time >= start_time. + EndTime time.Time `json:"endTimeUnixNano,omitempty"` + // attributes is a collection of key/value pairs. Note, global attributes + // like server name can be set using the resource API. Examples of attributes: + // + // "/http/user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36" + // "/http/server_latency": 300 + // "example.com/myattribute": true + // "example.com/score": 10.239 + // + // The OpenTelemetry API specification further restricts the allowed value types: + // https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/common/README.md#attribute + // Attribute keys MUST be unique (it is not allowed to have more than one + // attribute with the same key). + Attrs []Attr `json:"attributes,omitempty"` + // dropped_attributes_count is the number of attributes that were discarded. Attributes + // can be discarded because their keys are too long or because there are too many + // attributes. If this value is 0, then no attributes were dropped. + DroppedAttrs uint32 `json:"droppedAttributesCount,omitempty"` + // events is a collection of Event items. + Events []*SpanEvent `json:"events,omitempty"` + // dropped_events_count is the number of dropped events. If the value is 0, then no + // events were dropped. + DroppedEvents uint32 `json:"droppedEventsCount,omitempty"` + // links is a collection of Links, which are references from this span to a span + // in the same or different trace. + Links []*SpanLink `json:"links,omitempty"` + // dropped_links_count is the number of dropped links after the maximum size was + // enforced. If this value is 0, then no links were dropped. + DroppedLinks uint32 `json:"droppedLinksCount,omitempty"` + // An optional final status for this span. Semantically when Status isn't set, it means + // span's status code is unset, i.e. assume STATUS_CODE_UNSET (code = 0). + Status *Status `json:"status,omitempty"` +} + +// MarshalJSON encodes s into OTLP formatted JSON. +func (s Span) MarshalJSON() ([]byte, error) { + startT := s.StartTime.UnixNano() + if s.StartTime.IsZero() || startT < 0 { + startT = 0 + } + + endT := s.EndTime.UnixNano() + if s.EndTime.IsZero() || endT < 0 { + endT = 0 + } + + // Override non-empty default SpanID marshal and omitempty. + var parentSpanId string + if !s.ParentSpanID.IsEmpty() { + b := make([]byte, hex.EncodedLen(spanIDSize)) + hex.Encode(b, s.ParentSpanID[:]) + parentSpanId = string(b) + } + + type Alias Span + return json.Marshal(struct { + Alias + ParentSpanID string `json:"parentSpanId,omitempty"` + StartTime uint64 `json:"startTimeUnixNano,omitempty"` + EndTime uint64 `json:"endTimeUnixNano,omitempty"` + }{ + Alias: Alias(s), + ParentSpanID: parentSpanId, + StartTime: uint64(startT), + EndTime: uint64(endT), + }) +} + +// UnmarshalJSON decodes the OTLP formatted JSON contained in data into s. +func (s *Span) UnmarshalJSON(data []byte) error { + decoder := json.NewDecoder(bytes.NewReader(data)) + + t, err := decoder.Token() + if err != nil { + return err + } + if t != json.Delim('{') { + return errors.New("invalid Span type") + } + + for decoder.More() { + keyIface, err := decoder.Token() + if err != nil { + if errors.Is(err, io.EOF) { + // Empty. + return nil + } + return err + } + + key, ok := keyIface.(string) + if !ok { + return fmt.Errorf("invalid Span field: %#v", keyIface) + } + + switch key { + case "traceId", "trace_id": + err = decoder.Decode(&s.TraceID) + case "spanId", "span_id": + err = decoder.Decode(&s.SpanID) + case "traceState", "trace_state": + err = decoder.Decode(&s.TraceState) + case "parentSpanId", "parent_span_id": + err = decoder.Decode(&s.ParentSpanID) + case "flags": + err = decoder.Decode(&s.Flags) + case "name": + err = decoder.Decode(&s.Name) + case "kind": + err = decoder.Decode(&s.Kind) + case "startTimeUnixNano", "start_time_unix_nano": + var val protoUint64 + err = decoder.Decode(&val) + s.StartTime = time.Unix(0, int64(val.Uint64())) + case "endTimeUnixNano", "end_time_unix_nano": + var val protoUint64 + err = decoder.Decode(&val) + s.EndTime = time.Unix(0, int64(val.Uint64())) + case "attributes": + err = decoder.Decode(&s.Attrs) + case "droppedAttributesCount", "dropped_attributes_count": + err = decoder.Decode(&s.DroppedAttrs) + case "events": + err = decoder.Decode(&s.Events) + case "droppedEventsCount", "dropped_events_count": + err = decoder.Decode(&s.DroppedEvents) + case "links": + err = decoder.Decode(&s.Links) + case "droppedLinksCount", "dropped_links_count": + err = decoder.Decode(&s.DroppedLinks) + case "status": + err = decoder.Decode(&s.Status) + default: + // Skip unknown. + } + + if err != nil { + return err + } + } + return nil +} + +// SpanFlags represents constants used to interpret the +// Span.flags field, which is protobuf 'fixed32' type and is to +// be used as bit-fields. Each non-zero value defined in this enum is +// a bit-mask. To extract the bit-field, for example, use an +// expression like: +// +// (span.flags & SPAN_FLAGS_TRACE_FLAGS_MASK) +// +// See https://www.w3.org/TR/trace-context-2/#trace-flags for the flag definitions. +// +// Note that Span flags were introduced in version 1.1 of the +// OpenTelemetry protocol. Older Span producers do not set this +// field, consequently consumers should not rely on the absence of a +// particular flag bit to indicate the presence of a particular feature. +type SpanFlags int32 + +const ( + // Bits 0-7 are used for trace flags. + SpanFlagsTraceFlagsMask SpanFlags = 255 + // Bits 8 and 9 are used to indicate that the parent span or link span is remote. + // Bit 8 (`HAS_IS_REMOTE`) indicates whether the value is known. + // Bit 9 (`IS_REMOTE`) indicates whether the span or link is remote. + SpanFlagsContextHasIsRemoteMask SpanFlags = 256 + // SpanFlagsContextHasIsRemoteMask indicates the Span is remote. + SpanFlagsContextIsRemoteMask SpanFlags = 512 +) + +// SpanKind is the type of span. Can be used to specify additional relationships between spans +// in addition to a parent/child relationship. +type SpanKind int32 + +const ( + // Indicates that the span represents an internal operation within an application, + // as opposed to an operation happening at the boundaries. Default value. + SpanKindInternal SpanKind = 1 + // Indicates that the span covers server-side handling of an RPC or other + // remote network request. + SpanKindServer SpanKind = 2 + // Indicates that the span describes a request to some remote service. + SpanKindClient SpanKind = 3 + // Indicates that the span describes a producer sending a message to a broker. + // Unlike CLIENT and SERVER, there is often no direct critical path latency relationship + // between producer and consumer spans. A PRODUCER span ends when the message was accepted + // by the broker while the logical processing of the message might span a much longer time. + SpanKindProducer SpanKind = 4 + // Indicates that the span describes consumer receiving a message from a broker. + // Like the PRODUCER kind, there is often no direct critical path latency relationship + // between producer and consumer spans. + SpanKindConsumer SpanKind = 5 +) + +// Event is a time-stamped annotation of the span, consisting of user-supplied +// text description and key-value pairs. +type SpanEvent struct { + // time_unix_nano is the time the event occurred. + Time time.Time `json:"timeUnixNano,omitempty"` + // name of the event. + // This field is semantically required to be set to non-empty string. + Name string `json:"name,omitempty"` + // attributes is a collection of attribute key/value pairs on the event. + // Attribute keys MUST be unique (it is not allowed to have more than one + // attribute with the same key). + Attrs []Attr `json:"attributes,omitempty"` + // dropped_attributes_count is the number of dropped attributes. If the value is 0, + // then no attributes were dropped. + DroppedAttrs uint32 `json:"droppedAttributesCount,omitempty"` +} + +// MarshalJSON encodes e into OTLP formatted JSON. +func (e SpanEvent) MarshalJSON() ([]byte, error) { + t := e.Time.UnixNano() + if e.Time.IsZero() || t < 0 { + t = 0 + } + + type Alias SpanEvent + return json.Marshal(struct { + Alias + Time uint64 `json:"timeUnixNano,omitempty"` + }{ + Alias: Alias(e), + Time: uint64(t), + }) +} + +// UnmarshalJSON decodes the OTLP formatted JSON contained in data into se. +func (se *SpanEvent) UnmarshalJSON(data []byte) error { + decoder := json.NewDecoder(bytes.NewReader(data)) + + t, err := decoder.Token() + if err != nil { + return err + } + if t != json.Delim('{') { + return errors.New("invalid SpanEvent type") + } + + for decoder.More() { + keyIface, err := decoder.Token() + if err != nil { + if errors.Is(err, io.EOF) { + // Empty. + return nil + } + return err + } + + key, ok := keyIface.(string) + if !ok { + return fmt.Errorf("invalid SpanEvent field: %#v", keyIface) + } + + switch key { + case "timeUnixNano", "time_unix_nano": + var val protoUint64 + err = decoder.Decode(&val) + se.Time = time.Unix(0, int64(val.Uint64())) + case "name": + err = decoder.Decode(&se.Name) + case "attributes": + err = decoder.Decode(&se.Attrs) + case "droppedAttributesCount", "dropped_attributes_count": + err = decoder.Decode(&se.DroppedAttrs) + default: + // Skip unknown. + } + + if err != nil { + return err + } + } + return nil +} + +// A pointer from the current span to another span in the same trace or in a +// different trace. For example, this can be used in batching operations, +// where a single batch handler processes multiple requests from different +// traces or when the handler receives a request from a different project. +type SpanLink struct { + // A unique identifier of a trace that this linked span is part of. The ID is a + // 16-byte array. + TraceID TraceID `json:"traceId,omitempty"` + // A unique identifier for the linked span. The ID is an 8-byte array. + SpanID SpanID `json:"spanId,omitempty"` + // The trace_state associated with the link. + TraceState string `json:"traceState,omitempty"` + // attributes is a collection of attribute key/value pairs on the link. + // Attribute keys MUST be unique (it is not allowed to have more than one + // attribute with the same key). + Attrs []Attr `json:"attributes,omitempty"` + // dropped_attributes_count is the number of dropped attributes. If the value is 0, + // then no attributes were dropped. + DroppedAttrs uint32 `json:"droppedAttributesCount,omitempty"` + // Flags, a bit field. + // + // Bits 0-7 (8 least significant bits) are the trace flags as defined in W3C Trace + // Context specification. To read the 8-bit W3C trace flag, use + // `flags & SPAN_FLAGS_TRACE_FLAGS_MASK`. + // + // See https://www.w3.org/TR/trace-context-2/#trace-flags for the flag definitions. + // + // Bits 8 and 9 represent the 3 states of whether the link is remote. + // The states are (unknown, is not remote, is remote). + // To read whether the value is known, use `(flags & SPAN_FLAGS_CONTEXT_HAS_IS_REMOTE_MASK) != 0`. + // To read whether the link is remote, use `(flags & SPAN_FLAGS_CONTEXT_IS_REMOTE_MASK) != 0`. + // + // Readers MUST NOT assume that bits 10-31 (22 most significant bits) will be zero. + // When creating new spans, bits 10-31 (most-significant 22-bits) MUST be zero. + // + // [Optional]. + Flags uint32 `json:"flags,omitempty"` +} + +// UnmarshalJSON decodes the OTLP formatted JSON contained in data into sl. +func (sl *SpanLink) UnmarshalJSON(data []byte) error { + decoder := json.NewDecoder(bytes.NewReader(data)) + + t, err := decoder.Token() + if err != nil { + return err + } + if t != json.Delim('{') { + return errors.New("invalid SpanLink type") + } + + for decoder.More() { + keyIface, err := decoder.Token() + if err != nil { + if errors.Is(err, io.EOF) { + // Empty. + return nil + } + return err + } + + key, ok := keyIface.(string) + if !ok { + return fmt.Errorf("invalid SpanLink field: %#v", keyIface) + } + + switch key { + case "traceId", "trace_id": + err = decoder.Decode(&sl.TraceID) + case "spanId", "span_id": + err = decoder.Decode(&sl.SpanID) + case "traceState", "trace_state": + err = decoder.Decode(&sl.TraceState) + case "attributes": + err = decoder.Decode(&sl.Attrs) + case "droppedAttributesCount", "dropped_attributes_count": + err = decoder.Decode(&sl.DroppedAttrs) + case "flags": + err = decoder.Decode(&sl.Flags) + default: + // Skip unknown. + } + + if err != nil { + return err + } + } + return nil +} diff --git a/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/status.go b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/status.go new file mode 100644 index 000000000..1217776ea --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/status.go @@ -0,0 +1,40 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package telemetry + +// For the semantics of status codes see +// https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/api.md#set-status +type StatusCode int32 + +const ( + // The default status. + StatusCodeUnset StatusCode = 0 + // The Span has been validated by an Application developer or Operator to + // have completed successfully. + StatusCodeOK StatusCode = 1 + // The Span contains an error. + StatusCodeError StatusCode = 2 +) + +var statusCodeStrings = []string{ + "Unset", + "OK", + "Error", +} + +func (s StatusCode) String() string { + if s >= 0 && int(s) < len(statusCodeStrings) { + return statusCodeStrings[s] + } + return "<unknown telemetry.StatusCode>" +} + +// The Status type defines a logical error model that is suitable for different +// programming environments, including REST APIs and RPC APIs. +type Status struct { + // A developer-facing human readable error message. + Message string `json:"message,omitempty"` + // The status code. + Code StatusCode `json:"code,omitempty"` +} diff --git a/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/traces.go b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/traces.go new file mode 100644 index 000000000..69a348f0f --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/traces.go @@ -0,0 +1,189 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package telemetry + +import ( + "bytes" + "encoding/json" + "errors" + "fmt" + "io" +) + +// Traces represents the traces data that can be stored in a persistent storage, +// OR can be embedded by other protocols that transfer OTLP traces data but do +// not implement the OTLP protocol. +// +// The main difference between this message and collector protocol is that +// in this message there will not be any "control" or "metadata" specific to +// OTLP protocol. +// +// When new fields are added into this message, the OTLP request MUST be updated +// as well. +type Traces struct { + // An array of ResourceSpans. + // For data coming from a single resource this array will typically contain + // one element. Intermediary nodes that receive data from multiple origins + // typically batch the data before forwarding further and in that case this + // array will contain multiple elements. + ResourceSpans []*ResourceSpans `json:"resourceSpans,omitempty"` +} + +// UnmarshalJSON decodes the OTLP formatted JSON contained in data into td. +func (td *Traces) UnmarshalJSON(data []byte) error { + decoder := json.NewDecoder(bytes.NewReader(data)) + + t, err := decoder.Token() + if err != nil { + return err + } + if t != json.Delim('{') { + return errors.New("invalid TracesData type") + } + + for decoder.More() { + keyIface, err := decoder.Token() + if err != nil { + if errors.Is(err, io.EOF) { + // Empty. + return nil + } + return err + } + + key, ok := keyIface.(string) + if !ok { + return fmt.Errorf("invalid TracesData field: %#v", keyIface) + } + + switch key { + case "resourceSpans", "resource_spans": + err = decoder.Decode(&td.ResourceSpans) + default: + // Skip unknown. + } + + if err != nil { + return err + } + } + return nil +} + +// A collection of ScopeSpans from a Resource. +type ResourceSpans struct { + // The resource for the spans in this message. + // If this field is not set then no resource info is known. + Resource Resource `json:"resource"` + // A list of ScopeSpans that originate from a resource. + ScopeSpans []*ScopeSpans `json:"scopeSpans,omitempty"` + // This schema_url applies to the data in the "resource" field. It does not apply + // to the data in the "scope_spans" field which have their own schema_url field. + SchemaURL string `json:"schemaUrl,omitempty"` +} + +// UnmarshalJSON decodes the OTLP formatted JSON contained in data into rs. +func (rs *ResourceSpans) UnmarshalJSON(data []byte) error { + decoder := json.NewDecoder(bytes.NewReader(data)) + + t, err := decoder.Token() + if err != nil { + return err + } + if t != json.Delim('{') { + return errors.New("invalid ResourceSpans type") + } + + for decoder.More() { + keyIface, err := decoder.Token() + if err != nil { + if errors.Is(err, io.EOF) { + // Empty. + return nil + } + return err + } + + key, ok := keyIface.(string) + if !ok { + return fmt.Errorf("invalid ResourceSpans field: %#v", keyIface) + } + + switch key { + case "resource": + err = decoder.Decode(&rs.Resource) + case "scopeSpans", "scope_spans": + err = decoder.Decode(&rs.ScopeSpans) + case "schemaUrl", "schema_url": + err = decoder.Decode(&rs.SchemaURL) + default: + // Skip unknown. + } + + if err != nil { + return err + } + } + return nil +} + +// A collection of Spans produced by an InstrumentationScope. +type ScopeSpans struct { + // The instrumentation scope information for the spans in this message. + // Semantically when InstrumentationScope isn't set, it is equivalent with + // an empty instrumentation scope name (unknown). + Scope *Scope `json:"scope"` + // A list of Spans that originate from an instrumentation scope. + Spans []*Span `json:"spans,omitempty"` + // The Schema URL, if known. This is the identifier of the Schema that the span data + // is recorded in. To learn more about Schema URL see + // https://opentelemetry.io/docs/specs/otel/schemas/#schema-url + // This schema_url applies to all spans and span events in the "spans" field. + SchemaURL string `json:"schemaUrl,omitempty"` +} + +// UnmarshalJSON decodes the OTLP formatted JSON contained in data into ss. +func (ss *ScopeSpans) UnmarshalJSON(data []byte) error { + decoder := json.NewDecoder(bytes.NewReader(data)) + + t, err := decoder.Token() + if err != nil { + return err + } + if t != json.Delim('{') { + return errors.New("invalid ScopeSpans type") + } + + for decoder.More() { + keyIface, err := decoder.Token() + if err != nil { + if errors.Is(err, io.EOF) { + // Empty. + return nil + } + return err + } + + key, ok := keyIface.(string) + if !ok { + return fmt.Errorf("invalid ScopeSpans field: %#v", keyIface) + } + + switch key { + case "scope": + err = decoder.Decode(&ss.Scope) + case "spans": + err = decoder.Decode(&ss.Spans) + case "schemaUrl", "schema_url": + err = decoder.Decode(&ss.SchemaURL) + default: + // Skip unknown. + } + + if err != nil { + return err + } + } + return nil +} diff --git a/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/value.go b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/value.go new file mode 100644 index 000000000..0dd01b063 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/internal/telemetry/value.go @@ -0,0 +1,452 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +//go:generate stringer -type=ValueKind -trimprefix=ValueKind + +package telemetry + +import ( + "bytes" + "cmp" + "encoding/base64" + "encoding/json" + "errors" + "fmt" + "io" + "math" + "slices" + "strconv" + "unsafe" +) + +// A Value represents a structured value. +// A zero value is valid and represents an empty value. +type Value struct { + // Ensure forward compatibility by explicitly making this not comparable. + noCmp [0]func() //nolint: unused // This is indeed used. + + // num holds the value for Int64, Float64, and Bool. It holds the length + // for String, Bytes, Slice, Map. + num uint64 + // any holds either the KindBool, KindInt64, KindFloat64, stringptr, + // bytesptr, sliceptr, or mapptr. If KindBool, KindInt64, or KindFloat64 + // then the value of Value is in num as described above. Otherwise, it + // contains the value wrapped in the appropriate type. + any any +} + +type ( + // sliceptr represents a value in Value.any for KindString Values. + stringptr *byte + // bytesptr represents a value in Value.any for KindBytes Values. + bytesptr *byte + // sliceptr represents a value in Value.any for KindSlice Values. + sliceptr *Value + // mapptr represents a value in Value.any for KindMap Values. + mapptr *Attr +) + +// ValueKind is the kind of a [Value]. +type ValueKind int + +// ValueKind values. +const ( + ValueKindEmpty ValueKind = iota + ValueKindBool + ValueKindFloat64 + ValueKindInt64 + ValueKindString + ValueKindBytes + ValueKindSlice + ValueKindMap +) + +var valueKindStrings = []string{ + "Empty", + "Bool", + "Float64", + "Int64", + "String", + "Bytes", + "Slice", + "Map", +} + +func (k ValueKind) String() string { + if k >= 0 && int(k) < len(valueKindStrings) { + return valueKindStrings[k] + } + return "<unknown telemetry.ValueKind>" +} + +// StringValue returns a new [Value] for a string. +func StringValue(v string) Value { + return Value{ + num: uint64(len(v)), + any: stringptr(unsafe.StringData(v)), + } +} + +// IntValue returns a [Value] for an int. +func IntValue(v int) Value { return Int64Value(int64(v)) } + +// Int64Value returns a [Value] for an int64. +func Int64Value(v int64) Value { + return Value{num: uint64(v), any: ValueKindInt64} +} + +// Float64Value returns a [Value] for a float64. +func Float64Value(v float64) Value { + return Value{num: math.Float64bits(v), any: ValueKindFloat64} +} + +// BoolValue returns a [Value] for a bool. +func BoolValue(v bool) Value { //nolint:revive // Not a control flag. + var n uint64 + if v { + n = 1 + } + return Value{num: n, any: ValueKindBool} +} + +// BytesValue returns a [Value] for a byte slice. The passed slice must not be +// changed after it is passed. +func BytesValue(v []byte) Value { + return Value{ + num: uint64(len(v)), + any: bytesptr(unsafe.SliceData(v)), + } +} + +// SliceValue returns a [Value] for a slice of [Value]. The passed slice must +// not be changed after it is passed. +func SliceValue(vs ...Value) Value { + return Value{ + num: uint64(len(vs)), + any: sliceptr(unsafe.SliceData(vs)), + } +} + +// MapValue returns a new [Value] for a slice of key-value pairs. The passed +// slice must not be changed after it is passed. +func MapValue(kvs ...Attr) Value { + return Value{ + num: uint64(len(kvs)), + any: mapptr(unsafe.SliceData(kvs)), + } +} + +// AsString returns the value held by v as a string. +func (v Value) AsString() string { + if sp, ok := v.any.(stringptr); ok { + return unsafe.String(sp, v.num) + } + // TODO: error handle + return "" +} + +// asString returns the value held by v as a string. It will panic if the Value +// is not KindString. +func (v Value) asString() string { + return unsafe.String(v.any.(stringptr), v.num) +} + +// AsInt64 returns the value held by v as an int64. +func (v Value) AsInt64() int64 { + if v.Kind() != ValueKindInt64 { + // TODO: error handle + return 0 + } + return v.asInt64() +} + +// asInt64 returns the value held by v as an int64. If v is not of KindInt64, +// this will return garbage. +func (v Value) asInt64() int64 { + // Assumes v.num was a valid int64 (overflow not checked). + return int64(v.num) // nolint: gosec +} + +// AsBool returns the value held by v as a bool. +func (v Value) AsBool() bool { + if v.Kind() != ValueKindBool { + // TODO: error handle + return false + } + return v.asBool() +} + +// asBool returns the value held by v as a bool. If v is not of KindBool, this +// will return garbage. +func (v Value) asBool() bool { return v.num == 1 } + +// AsFloat64 returns the value held by v as a float64. +func (v Value) AsFloat64() float64 { + if v.Kind() != ValueKindFloat64 { + // TODO: error handle + return 0 + } + return v.asFloat64() +} + +// asFloat64 returns the value held by v as a float64. If v is not of +// KindFloat64, this will return garbage. +func (v Value) asFloat64() float64 { return math.Float64frombits(v.num) } + +// AsBytes returns the value held by v as a []byte. +func (v Value) AsBytes() []byte { + if sp, ok := v.any.(bytesptr); ok { + return unsafe.Slice((*byte)(sp), v.num) + } + // TODO: error handle + return nil +} + +// asBytes returns the value held by v as a []byte. It will panic if the Value +// is not KindBytes. +func (v Value) asBytes() []byte { + return unsafe.Slice((*byte)(v.any.(bytesptr)), v.num) +} + +// AsSlice returns the value held by v as a []Value. +func (v Value) AsSlice() []Value { + if sp, ok := v.any.(sliceptr); ok { + return unsafe.Slice((*Value)(sp), v.num) + } + // TODO: error handle + return nil +} + +// asSlice returns the value held by v as a []Value. It will panic if the Value +// is not KindSlice. +func (v Value) asSlice() []Value { + return unsafe.Slice((*Value)(v.any.(sliceptr)), v.num) +} + +// AsMap returns the value held by v as a []Attr. +func (v Value) AsMap() []Attr { + if sp, ok := v.any.(mapptr); ok { + return unsafe.Slice((*Attr)(sp), v.num) + } + // TODO: error handle + return nil +} + +// asMap returns the value held by v as a []Attr. It will panic if the +// Value is not KindMap. +func (v Value) asMap() []Attr { + return unsafe.Slice((*Attr)(v.any.(mapptr)), v.num) +} + +// Kind returns the Kind of v. +func (v Value) Kind() ValueKind { + switch x := v.any.(type) { + case ValueKind: + return x + case stringptr: + return ValueKindString + case bytesptr: + return ValueKindBytes + case sliceptr: + return ValueKindSlice + case mapptr: + return ValueKindMap + default: + return ValueKindEmpty + } +} + +// Empty returns if v does not hold any value. +func (v Value) Empty() bool { return v.Kind() == ValueKindEmpty } + +// Equal returns if v is equal to w. +func (v Value) Equal(w Value) bool { + k1 := v.Kind() + k2 := w.Kind() + if k1 != k2 { + return false + } + switch k1 { + case ValueKindInt64, ValueKindBool: + return v.num == w.num + case ValueKindString: + return v.asString() == w.asString() + case ValueKindFloat64: + return v.asFloat64() == w.asFloat64() + case ValueKindSlice: + return slices.EqualFunc(v.asSlice(), w.asSlice(), Value.Equal) + case ValueKindMap: + sv := sortMap(v.asMap()) + sw := sortMap(w.asMap()) + return slices.EqualFunc(sv, sw, Attr.Equal) + case ValueKindBytes: + return bytes.Equal(v.asBytes(), w.asBytes()) + case ValueKindEmpty: + return true + default: + // TODO: error handle + return false + } +} + +func sortMap(m []Attr) []Attr { + sm := make([]Attr, len(m)) + copy(sm, m) + slices.SortFunc(sm, func(a, b Attr) int { + return cmp.Compare(a.Key, b.Key) + }) + + return sm +} + +// String returns Value's value as a string, formatted like [fmt.Sprint]. +// +// The returned string is meant for debugging; +// the string representation is not stable. +func (v Value) String() string { + switch v.Kind() { + case ValueKindString: + return v.asString() + case ValueKindInt64: + // Assumes v.num was a valid int64 (overflow not checked). + return strconv.FormatInt(int64(v.num), 10) // nolint: gosec + case ValueKindFloat64: + return strconv.FormatFloat(v.asFloat64(), 'g', -1, 64) + case ValueKindBool: + return strconv.FormatBool(v.asBool()) + case ValueKindBytes: + return fmt.Sprint(v.asBytes()) + case ValueKindMap: + return fmt.Sprint(v.asMap()) + case ValueKindSlice: + return fmt.Sprint(v.asSlice()) + case ValueKindEmpty: + return "<nil>" + default: + // Try to handle this as gracefully as possible. + // + // Don't panic here. The goal here is to have developers find this + // first if a slog.Kind is is not handled. It is + // preferable to have user's open issue asking why their attributes + // have a "unhandled: " prefix than say that their code is panicking. + return fmt.Sprintf("<unhandled telemetry.ValueKind: %s>", v.Kind()) + } +} + +// MarshalJSON encodes v into OTLP formatted JSON. +func (v *Value) MarshalJSON() ([]byte, error) { + switch v.Kind() { + case ValueKindString: + return json.Marshal(struct { + Value string `json:"stringValue"` + }{v.asString()}) + case ValueKindInt64: + return json.Marshal(struct { + Value string `json:"intValue"` + }{strconv.FormatInt(int64(v.num), 10)}) + case ValueKindFloat64: + return json.Marshal(struct { + Value float64 `json:"doubleValue"` + }{v.asFloat64()}) + case ValueKindBool: + return json.Marshal(struct { + Value bool `json:"boolValue"` + }{v.asBool()}) + case ValueKindBytes: + return json.Marshal(struct { + Value []byte `json:"bytesValue"` + }{v.asBytes()}) + case ValueKindMap: + return json.Marshal(struct { + Value struct { + Values []Attr `json:"values"` + } `json:"kvlistValue"` + }{struct { + Values []Attr `json:"values"` + }{v.asMap()}}) + case ValueKindSlice: + return json.Marshal(struct { + Value struct { + Values []Value `json:"values"` + } `json:"arrayValue"` + }{struct { + Values []Value `json:"values"` + }{v.asSlice()}}) + case ValueKindEmpty: + return nil, nil + default: + return nil, fmt.Errorf("unknown Value kind: %s", v.Kind().String()) + } +} + +// UnmarshalJSON decodes the OTLP formatted JSON contained in data into v. +func (v *Value) UnmarshalJSON(data []byte) error { + decoder := json.NewDecoder(bytes.NewReader(data)) + + t, err := decoder.Token() + if err != nil { + return err + } + if t != json.Delim('{') { + return errors.New("invalid Value type") + } + + for decoder.More() { + keyIface, err := decoder.Token() + if err != nil { + if errors.Is(err, io.EOF) { + // Empty. + return nil + } + return err + } + + key, ok := keyIface.(string) + if !ok { + return fmt.Errorf("invalid Value key: %#v", keyIface) + } + + switch key { + case "stringValue", "string_value": + var val string + err = decoder.Decode(&val) + *v = StringValue(val) + case "boolValue", "bool_value": + var val bool + err = decoder.Decode(&val) + *v = BoolValue(val) + case "intValue", "int_value": + var val protoInt64 + err = decoder.Decode(&val) + *v = Int64Value(val.Int64()) + case "doubleValue", "double_value": + var val float64 + err = decoder.Decode(&val) + *v = Float64Value(val) + case "bytesValue", "bytes_value": + var val64 string + if err := decoder.Decode(&val64); err != nil { + return err + } + var val []byte + val, err = base64.StdEncoding.DecodeString(val64) + *v = BytesValue(val) + case "arrayValue", "array_value": + var val struct{ Values []Value } + err = decoder.Decode(&val) + *v = SliceValue(val.Values...) + case "kvlistValue", "kvlist_value": + var val struct{ Values []Attr } + err = decoder.Decode(&val) + *v = MapValue(val.Values...) + default: + // Skip unknown. + continue + } + // Use first valid. Ignore the rest. + return err + } + + // Only unknown fields. Return nil without unmarshaling any value. + return nil +} diff --git a/vendor/go.opentelemetry.io/auto/sdk/limit.go b/vendor/go.opentelemetry.io/auto/sdk/limit.go new file mode 100644 index 000000000..86babf1a8 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/limit.go @@ -0,0 +1,94 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package sdk + +import ( + "log/slog" + "os" + "strconv" +) + +// maxSpan are the span limits resolved during startup. +var maxSpan = newSpanLimits() + +type spanLimits struct { + // Attrs is the number of allowed attributes for a span. + // + // This is resolved from the environment variable value for the + // OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT key if it exists. Otherwise, the + // environment variable value for OTEL_ATTRIBUTE_COUNT_LIMIT, or 128 if + // that is not set, is used. + Attrs int + // AttrValueLen is the maximum attribute value length allowed for a span. + // + // This is resolved from the environment variable value for the + // OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT key if it exists. Otherwise, the + // environment variable value for OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT, or -1 + // if that is not set, is used. + AttrValueLen int + // Events is the number of allowed events for a span. + // + // This is resolved from the environment variable value for the + // OTEL_SPAN_EVENT_COUNT_LIMIT key, or 128 is used if that is not set. + Events int + // EventAttrs is the number of allowed attributes for a span event. + // + // The is resolved from the environment variable value for the + // OTEL_EVENT_ATTRIBUTE_COUNT_LIMIT key, or 128 is used if that is not set. + EventAttrs int + // Links is the number of allowed Links for a span. + // + // This is resolved from the environment variable value for the + // OTEL_SPAN_LINK_COUNT_LIMIT, or 128 is used if that is not set. + Links int + // LinkAttrs is the number of allowed attributes for a span link. + // + // This is resolved from the environment variable value for the + // OTEL_LINK_ATTRIBUTE_COUNT_LIMIT, or 128 is used if that is not set. + LinkAttrs int +} + +func newSpanLimits() spanLimits { + return spanLimits{ + Attrs: firstEnv( + 128, + "OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT", + "OTEL_ATTRIBUTE_COUNT_LIMIT", + ), + AttrValueLen: firstEnv( + -1, // Unlimited. + "OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT", + "OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT", + ), + Events: firstEnv(128, "OTEL_SPAN_EVENT_COUNT_LIMIT"), + EventAttrs: firstEnv(128, "OTEL_EVENT_ATTRIBUTE_COUNT_LIMIT"), + Links: firstEnv(128, "OTEL_SPAN_LINK_COUNT_LIMIT"), + LinkAttrs: firstEnv(128, "OTEL_LINK_ATTRIBUTE_COUNT_LIMIT"), + } +} + +// firstEnv returns the parsed integer value of the first matching environment +// variable from keys. The defaultVal is returned if the value is not an +// integer or no match is found. +func firstEnv(defaultVal int, keys ...string) int { + for _, key := range keys { + strV := os.Getenv(key) + if strV == "" { + continue + } + + v, err := strconv.Atoi(strV) + if err == nil { + return v + } + slog.Warn( + "invalid limit environment variable", + "error", err, + "key", key, + "value", strV, + ) + } + + return defaultVal +} diff --git a/vendor/go.opentelemetry.io/auto/sdk/span.go b/vendor/go.opentelemetry.io/auto/sdk/span.go new file mode 100644 index 000000000..6ebea12a9 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/span.go @@ -0,0 +1,432 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package sdk + +import ( + "encoding/json" + "fmt" + "reflect" + "runtime" + "strings" + "sync" + "sync/atomic" + "time" + "unicode/utf8" + + "go.opentelemetry.io/otel/attribute" + "go.opentelemetry.io/otel/codes" + semconv "go.opentelemetry.io/otel/semconv/v1.26.0" + "go.opentelemetry.io/otel/trace" + "go.opentelemetry.io/otel/trace/noop" + + "go.opentelemetry.io/auto/sdk/internal/telemetry" +) + +type span struct { + noop.Span + + spanContext trace.SpanContext + sampled atomic.Bool + + mu sync.Mutex + traces *telemetry.Traces + span *telemetry.Span +} + +func (s *span) SpanContext() trace.SpanContext { + if s == nil { + return trace.SpanContext{} + } + // s.spanContext is immutable, do not acquire lock s.mu. + return s.spanContext +} + +func (s *span) IsRecording() bool { + if s == nil { + return false + } + + return s.sampled.Load() +} + +func (s *span) SetStatus(c codes.Code, msg string) { + if s == nil || !s.sampled.Load() { + return + } + + s.mu.Lock() + defer s.mu.Unlock() + + if s.span.Status == nil { + s.span.Status = new(telemetry.Status) + } + + s.span.Status.Message = msg + + switch c { + case codes.Unset: + s.span.Status.Code = telemetry.StatusCodeUnset + case codes.Error: + s.span.Status.Code = telemetry.StatusCodeError + case codes.Ok: + s.span.Status.Code = telemetry.StatusCodeOK + } +} + +func (s *span) SetAttributes(attrs ...attribute.KeyValue) { + if s == nil || !s.sampled.Load() { + return + } + + s.mu.Lock() + defer s.mu.Unlock() + + limit := maxSpan.Attrs + if limit == 0 { + // No attributes allowed. + s.span.DroppedAttrs += uint32(len(attrs)) + return + } + + m := make(map[string]int) + for i, a := range s.span.Attrs { + m[a.Key] = i + } + + for _, a := range attrs { + val := convAttrValue(a.Value) + if val.Empty() { + s.span.DroppedAttrs++ + continue + } + + if idx, ok := m[string(a.Key)]; ok { + s.span.Attrs[idx] = telemetry.Attr{ + Key: string(a.Key), + Value: val, + } + } else if limit < 0 || len(s.span.Attrs) < limit { + s.span.Attrs = append(s.span.Attrs, telemetry.Attr{ + Key: string(a.Key), + Value: val, + }) + m[string(a.Key)] = len(s.span.Attrs) - 1 + } else { + s.span.DroppedAttrs++ + } + } +} + +// convCappedAttrs converts up to limit attrs into a []telemetry.Attr. The +// number of dropped attributes is also returned. +func convCappedAttrs(limit int, attrs []attribute.KeyValue) ([]telemetry.Attr, uint32) { + if limit == 0 { + return nil, uint32(len(attrs)) + } + + if limit < 0 { + // Unlimited. + return convAttrs(attrs), 0 + } + + limit = min(len(attrs), limit) + return convAttrs(attrs[:limit]), uint32(len(attrs) - limit) +} + +func convAttrs(attrs []attribute.KeyValue) []telemetry.Attr { + if len(attrs) == 0 { + // Avoid allocations if not necessary. + return nil + } + + out := make([]telemetry.Attr, 0, len(attrs)) + for _, attr := range attrs { + key := string(attr.Key) + val := convAttrValue(attr.Value) + if val.Empty() { + continue + } + out = append(out, telemetry.Attr{Key: key, Value: val}) + } + return out +} + +func convAttrValue(value attribute.Value) telemetry.Value { + switch value.Type() { + case attribute.BOOL: + return telemetry.BoolValue(value.AsBool()) + case attribute.INT64: + return telemetry.Int64Value(value.AsInt64()) + case attribute.FLOAT64: + return telemetry.Float64Value(value.AsFloat64()) + case attribute.STRING: + v := truncate(maxSpan.AttrValueLen, value.AsString()) + return telemetry.StringValue(v) + case attribute.BOOLSLICE: + slice := value.AsBoolSlice() + out := make([]telemetry.Value, 0, len(slice)) + for _, v := range slice { + out = append(out, telemetry.BoolValue(v)) + } + return telemetry.SliceValue(out...) + case attribute.INT64SLICE: + slice := value.AsInt64Slice() + out := make([]telemetry.Value, 0, len(slice)) + for _, v := range slice { + out = append(out, telemetry.Int64Value(v)) + } + return telemetry.SliceValue(out...) + case attribute.FLOAT64SLICE: + slice := value.AsFloat64Slice() + out := make([]telemetry.Value, 0, len(slice)) + for _, v := range slice { + out = append(out, telemetry.Float64Value(v)) + } + return telemetry.SliceValue(out...) + case attribute.STRINGSLICE: + slice := value.AsStringSlice() + out := make([]telemetry.Value, 0, len(slice)) + for _, v := range slice { + v = truncate(maxSpan.AttrValueLen, v) + out = append(out, telemetry.StringValue(v)) + } + return telemetry.SliceValue(out...) + } + return telemetry.Value{} +} + +// truncate returns a truncated version of s such that it contains less than +// the limit number of characters. Truncation is applied by returning the limit +// number of valid characters contained in s. +// +// If limit is negative, it returns the original string. +// +// UTF-8 is supported. When truncating, all invalid characters are dropped +// before applying truncation. +// +// If s already contains less than the limit number of bytes, it is returned +// unchanged. No invalid characters are removed. +func truncate(limit int, s string) string { + // This prioritize performance in the following order based on the most + // common expected use-cases. + // + // - Short values less than the default limit (128). + // - Strings with valid encodings that exceed the limit. + // - No limit. + // - Strings with invalid encodings that exceed the limit. + if limit < 0 || len(s) <= limit { + return s + } + + // Optimistically, assume all valid UTF-8. + var b strings.Builder + count := 0 + for i, c := range s { + if c != utf8.RuneError { + count++ + if count > limit { + return s[:i] + } + continue + } + + _, size := utf8.DecodeRuneInString(s[i:]) + if size == 1 { + // Invalid encoding. + b.Grow(len(s) - 1) + _, _ = b.WriteString(s[:i]) + s = s[i:] + break + } + } + + // Fast-path, no invalid input. + if b.Cap() == 0 { + return s + } + + // Truncate while validating UTF-8. + for i := 0; i < len(s) && count < limit; { + c := s[i] + if c < utf8.RuneSelf { + // Optimization for single byte runes (common case). + _ = b.WriteByte(c) + i++ + count++ + continue + } + + _, size := utf8.DecodeRuneInString(s[i:]) + if size == 1 { + // We checked for all 1-byte runes above, this is a RuneError. + i++ + continue + } + + _, _ = b.WriteString(s[i : i+size]) + i += size + count++ + } + + return b.String() +} + +func (s *span) End(opts ...trace.SpanEndOption) { + if s == nil || !s.sampled.Swap(false) { + return + } + + // s.end exists so the lock (s.mu) is not held while s.ended is called. + s.ended(s.end(opts)) +} + +func (s *span) end(opts []trace.SpanEndOption) []byte { + s.mu.Lock() + defer s.mu.Unlock() + + cfg := trace.NewSpanEndConfig(opts...) + if t := cfg.Timestamp(); !t.IsZero() { + s.span.EndTime = cfg.Timestamp() + } else { + s.span.EndTime = time.Now() + } + + b, _ := json.Marshal(s.traces) // TODO: do not ignore this error. + return b +} + +// Expected to be implemented in eBPF. +// +//go:noinline +func (*span) ended(buf []byte) { ended(buf) } + +// ended is used for testing. +var ended = func([]byte) {} + +func (s *span) RecordError(err error, opts ...trace.EventOption) { + if s == nil || err == nil || !s.sampled.Load() { + return + } + + cfg := trace.NewEventConfig(opts...) + + attrs := cfg.Attributes() + attrs = append(attrs, + semconv.ExceptionType(typeStr(err)), + semconv.ExceptionMessage(err.Error()), + ) + if cfg.StackTrace() { + buf := make([]byte, 2048) + n := runtime.Stack(buf, false) + attrs = append(attrs, semconv.ExceptionStacktrace(string(buf[0:n]))) + } + + s.mu.Lock() + defer s.mu.Unlock() + + s.addEvent(semconv.ExceptionEventName, cfg.Timestamp(), attrs) +} + +func typeStr(i any) string { + t := reflect.TypeOf(i) + if t.PkgPath() == "" && t.Name() == "" { + // Likely a builtin type. + return t.String() + } + return fmt.Sprintf("%s.%s", t.PkgPath(), t.Name()) +} + +func (s *span) AddEvent(name string, opts ...trace.EventOption) { + if s == nil || !s.sampled.Load() { + return + } + + cfg := trace.NewEventConfig(opts...) + + s.mu.Lock() + defer s.mu.Unlock() + + s.addEvent(name, cfg.Timestamp(), cfg.Attributes()) +} + +// addEvent adds an event with name and attrs at tStamp to the span. The span +// lock (s.mu) needs to be held by the caller. +func (s *span) addEvent(name string, tStamp time.Time, attrs []attribute.KeyValue) { + limit := maxSpan.Events + + if limit == 0 { + s.span.DroppedEvents++ + return + } + + if limit > 0 && len(s.span.Events) == limit { + // Drop head while avoiding allocation of more capacity. + copy(s.span.Events[:limit-1], s.span.Events[1:]) + s.span.Events = s.span.Events[:limit-1] + s.span.DroppedEvents++ + } + + e := &telemetry.SpanEvent{Time: tStamp, Name: name} + e.Attrs, e.DroppedAttrs = convCappedAttrs(maxSpan.EventAttrs, attrs) + + s.span.Events = append(s.span.Events, e) +} + +func (s *span) AddLink(link trace.Link) { + if s == nil || !s.sampled.Load() { + return + } + + l := maxSpan.Links + + s.mu.Lock() + defer s.mu.Unlock() + + if l == 0 { + s.span.DroppedLinks++ + return + } + + if l > 0 && len(s.span.Links) == l { + // Drop head while avoiding allocation of more capacity. + copy(s.span.Links[:l-1], s.span.Links[1:]) + s.span.Links = s.span.Links[:l-1] + s.span.DroppedLinks++ + } + + s.span.Links = append(s.span.Links, convLink(link)) +} + +func convLinks(links []trace.Link) []*telemetry.SpanLink { + out := make([]*telemetry.SpanLink, 0, len(links)) + for _, link := range links { + out = append(out, convLink(link)) + } + return out +} + +func convLink(link trace.Link) *telemetry.SpanLink { + l := &telemetry.SpanLink{ + TraceID: telemetry.TraceID(link.SpanContext.TraceID()), + SpanID: telemetry.SpanID(link.SpanContext.SpanID()), + TraceState: link.SpanContext.TraceState().String(), + Flags: uint32(link.SpanContext.TraceFlags()), + } + l.Attrs, l.DroppedAttrs = convCappedAttrs(maxSpan.LinkAttrs, link.Attributes) + + return l +} + +func (s *span) SetName(name string) { + if s == nil || !s.sampled.Load() { + return + } + + s.mu.Lock() + defer s.mu.Unlock() + + s.span.Name = name +} + +func (*span) TracerProvider() trace.TracerProvider { return TracerProvider() } diff --git a/vendor/go.opentelemetry.io/auto/sdk/tracer.go b/vendor/go.opentelemetry.io/auto/sdk/tracer.go new file mode 100644 index 000000000..cbcfabde3 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/tracer.go @@ -0,0 +1,124 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package sdk + +import ( + "context" + "time" + + "go.opentelemetry.io/otel/trace" + "go.opentelemetry.io/otel/trace/noop" + + "go.opentelemetry.io/auto/sdk/internal/telemetry" +) + +type tracer struct { + noop.Tracer + + name, schemaURL, version string +} + +var _ trace.Tracer = tracer{} + +func (t tracer) Start(ctx context.Context, name string, opts ...trace.SpanStartOption) (context.Context, trace.Span) { + var psc trace.SpanContext + sampled := true + span := new(span) + + // Ask eBPF for sampling decision and span context info. + t.start(ctx, span, &psc, &sampled, &span.spanContext) + + span.sampled.Store(sampled) + + ctx = trace.ContextWithSpan(ctx, span) + + if sampled { + // Only build traces if sampled. + cfg := trace.NewSpanStartConfig(opts...) + span.traces, span.span = t.traces(name, cfg, span.spanContext, psc) + } + + return ctx, span +} + +// Expected to be implemented in eBPF. +// +//go:noinline +func (t *tracer) start( + ctx context.Context, + spanPtr *span, + psc *trace.SpanContext, + sampled *bool, + sc *trace.SpanContext, +) { + start(ctx, spanPtr, psc, sampled, sc) +} + +// start is used for testing. +var start = func(context.Context, *span, *trace.SpanContext, *bool, *trace.SpanContext) {} + +func (t tracer) traces(name string, cfg trace.SpanConfig, sc, psc trace.SpanContext) (*telemetry.Traces, *telemetry.Span) { + span := &telemetry.Span{ + TraceID: telemetry.TraceID(sc.TraceID()), + SpanID: telemetry.SpanID(sc.SpanID()), + Flags: uint32(sc.TraceFlags()), + TraceState: sc.TraceState().String(), + ParentSpanID: telemetry.SpanID(psc.SpanID()), + Name: name, + Kind: spanKind(cfg.SpanKind()), + } + + span.Attrs, span.DroppedAttrs = convCappedAttrs(maxSpan.Attrs, cfg.Attributes()) + + links := cfg.Links() + if limit := maxSpan.Links; limit == 0 { + span.DroppedLinks = uint32(len(links)) + } else { + if limit > 0 { + n := max(len(links)-limit, 0) + span.DroppedLinks = uint32(n) + links = links[n:] + } + span.Links = convLinks(links) + } + + if t := cfg.Timestamp(); !t.IsZero() { + span.StartTime = cfg.Timestamp() + } else { + span.StartTime = time.Now() + } + + return &telemetry.Traces{ + ResourceSpans: []*telemetry.ResourceSpans{ + { + ScopeSpans: []*telemetry.ScopeSpans{ + { + Scope: &telemetry.Scope{ + Name: t.name, + Version: t.version, + }, + Spans: []*telemetry.Span{span}, + SchemaURL: t.schemaURL, + }, + }, + }, + }, + }, span +} + +func spanKind(kind trace.SpanKind) telemetry.SpanKind { + switch kind { + case trace.SpanKindInternal: + return telemetry.SpanKindInternal + case trace.SpanKindServer: + return telemetry.SpanKindServer + case trace.SpanKindClient: + return telemetry.SpanKindClient + case trace.SpanKindProducer: + return telemetry.SpanKindProducer + case trace.SpanKindConsumer: + return telemetry.SpanKindConsumer + } + return telemetry.SpanKind(0) // undefined. +} diff --git a/vendor/go.opentelemetry.io/auto/sdk/tracer_provider.go b/vendor/go.opentelemetry.io/auto/sdk/tracer_provider.go new file mode 100644 index 000000000..dbc477a59 --- /dev/null +++ b/vendor/go.opentelemetry.io/auto/sdk/tracer_provider.go @@ -0,0 +1,33 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package sdk + +import ( + "go.opentelemetry.io/otel/trace" + "go.opentelemetry.io/otel/trace/noop" +) + +// TracerProvider returns an auto-instrumentable [trace.TracerProvider]. +// +// If an [go.opentelemetry.io/auto.Instrumentation] is configured to instrument +// the process using the returned TracerProvider, all of the telemetry it +// produces will be processed and handled by that Instrumentation. By default, +// if no Instrumentation instruments the TracerProvider it will not generate +// any trace telemetry. +func TracerProvider() trace.TracerProvider { return tracerProviderInstance } + +var tracerProviderInstance = new(tracerProvider) + +type tracerProvider struct{ noop.TracerProvider } + +var _ trace.TracerProvider = tracerProvider{} + +func (p tracerProvider) Tracer(name string, opts ...trace.TracerOption) trace.Tracer { + cfg := trace.NewTracerConfig(opts...) + return tracer{ + name: name, + version: cfg.InstrumentationVersion(), + schemaURL: cfg.SchemaURL(), + } +} |