[opencensus-go] initial integration (#10222)

Signed-off-by: AdamKorcz <[email protected]>

projects/opencensus-go/Dockerfile

@@ -0,0 +1,20 @@
+# Copyright 2023 Google LLC
+#
+# 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.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder-go
+RUN git clone --depth=1 https://github.com/census-instrumentation/opencensus-go
+COPY build.sh fuzz_test.go $SRC/
+WORKDIR $SRC/opencensus-go

projects/opencensus-go/build.sh

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+#/bin/bash -eu
+# Copyright 2023 Google LLC
+#
+# 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.
+#
+################################################################################
+
+cp $SRC/fuzz_test.go ./plugin/ochttp/propagation/b3/
+go mod tidy
+go get github.com/AdamKorcz/go-118-fuzz-build/testing
+compile_native_go_fuzzer go.opencensus.io/plugin/ochttp/propagation/b3 FuzzParseTraceID FuzzParseTraceID

projects/opencensus-go/fuzz_test.go

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+// Copyright 2023 Google LLC
+//
+// 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.
+//
+
+package b3
+
+import (
+	"testing"
+)
+
+func FuzzParseTraceID(f *testing.F) {
+	f.Fuzz(func(t *testing.T, tid string) {
+		_, _ = ParseTraceID(tid)
+	})
+}

projects/opencensus-go/project.yaml

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+homepage: "https://github.com/census-instrumentation/opencensus-go"
+main_repo: "https://github.com/census-instrumentation/opencensus-go"
+auto_ccs :
+  - "[email protected]"
+language: go
+fuzzing_engines:
+  - libfuzzer
+sanitizers:
+  - address