caddy: add new project (#5624)

projects/caddy/Dockerfile

@@ -0,0 +1,22 @@
+# Copyright 2021 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
+
+RUN git clone --depth 1  https://github.com/caddyserver/caddy $GOPATH/src/github.com/caddyserver/caddy/v2
+
+COPY build.sh $SRC/
+WORKDIR $SRC/caddy

projects/caddy/build.sh

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+#!/bin/bash -eu
+# Copyright 2021 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.
+#
+################################################################################
+
+if [[ $SANITIZER = *coverage* ]]; then
+    # we don't support 'coverage' sanitizer yet because 
+    # compile_go_fuzzer doesn't seem to like SIV.
+    # TODO: investigate proper fix for either
+    exit 0
+fi
+
+cd "$GOPATH"/src/github.com/caddyserver/caddy/v2
+
+find . -name '*_fuzz.go' | while read -r target
+do
+# Arguments are :
+#     path of the package with the fuzz target
+#     name of the fuzz function
+#     name of the fuzzer to be built
+#     optional tag to be used by go build and such
+
+    fuzzed_func=$(grep -o "Fuzz[a-zA-Z]\+" "$target")
+    fuzzer_name=$(echo "$fuzzed_func" | sed -E 's/([A-Z])/-\L\1/g' | sed 's/^-//')
+    # find the relative directory and remove the first `.` (`./` is removed for root)
+    target_dir=$(dirname "$target"); target_dir="${target_dir//.}";
+    target_corpus_name="${fuzzer_name}_seed_corpus.zip"
+
+    curl -s -f -O "https://raw.githubusercontent.com/caddyserver/caddy/fuzz-seed-corpus/${target_corpus_name}" || true
+    compile_go_fuzzer github.com/caddyserver/caddy/v2"$target_dir" "$fuzzed_func" "$fuzzer_name" gofuzz
+done

projects/caddy/project.yaml

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+homepage: "https://caddyserver.com/"
+language: go
+primary_contact: "msaa1990@gmail.com"
+auto_ccs:
+  - "Adam@adalogics.com"
+fuzzing_engines:
+  - libfuzzer
+sanitizers:
+  - address
+main_repo: "https://github.com/caddyserver/caddy.git"