HRW: Adds some more regex tests, in prep for PCRE2 migration (#12577)

Author: zwoop

tests/gold_tests/pluginTest/header_rewrite/gold/regex_both_match.gold

@@ -0,0 +1,12 @@
+``
+> GET http://www.example.com/from_9/``
+> Host: www.example.com``
+> User-Agent: curl/``
+> X-Test1: Foobar``
+``
+< HTTP/1.1 200 OK
+< Date: ``
+``
+< X-Match: yes
+< X-Match-2: yes
+``

tests/gold_tests/pluginTest/header_rewrite/gold/regex_match2_only.gold

@@ -0,0 +1,10 @@
+``
+> GET http://www.example.com/from_9/``
+> Host: www.example.com``
+> User-Agent: curl/``
+``
+< HTTP/1.1 200 OK
+< Date: ``
+``
+< X-Match-2: yes
+``

tests/gold_tests/pluginTest/header_rewrite/header_rewrite_bundle.test.py

@@ -82,6 +82,10 @@
         "from": f"{url_base}_8/",
         "to": f"{origin_base}_8/",
         "plugins": [("header_rewrite", [f"{mgr.run_dir}/implicit_hook.conf"])]
+    }, {
+        "from": f"{url_base}_9/",
+        "to": f"{origin_base}_9/",
+        "plugins": [("header_rewrite", [f"{mgr.run_dir}/regex_tests.conf"])]
     }
 ]
 
@@ -168,6 +172,11 @@
         "timestamp": "1469733493.993",
         "body": ""
     }, def_resp),
+    ({
+        "headers": "GET /to_9/ HTTP/1.1\r\nHost: www.example.com\r\n\r\n",
+        "timestamp": "1469733493.993",
+        "body": ""
+    }, def_resp),
 ]
 mgr.add_server_responses(origin_rules)
 
@@ -265,6 +274,21 @@
         "curl": f'{curl_proxy} "http://{url_base}_8/" -H "X-Client-Foo: fOoBar"',
         "gold": "gold/implicit_hook_prefix.gold",
     },
+    {
+        "desc": "Regex test - no additional headers (expect X-Match-2 only)",
+        "curl": f'{curl_proxy} "http://{url_base}_9/"',
+        "gold": "gold/regex_match2_only.gold",
+    },
+    {
+        "desc": "Regex test - X-Test1: Foobar (expect X-Match and X-Match-2)",
+        "curl": f'{curl_proxy} "http://{url_base}_9/" -H "X-Test1: Foobar"',
+        "gold": "gold/regex_both_match.gold",
+    },
+    {
+        "desc": "Regex test - X-Test1: none (expect X-Match-2 only)",
+        "curl": f'{curl_proxy} "http://{url_base}_9/" -H "X-Test1: none"',
+        "gold": "gold/regex_match2_only.gold",
+    },
 ]
 
 mgr.execute_tests(test_runs)

tests/gold_tests/pluginTest/header_rewrite/rules/regex_tests.conf

@@ -0,0 +1,28 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+cond %{SEND_RESPONSE_HDR_HOOK} [AND]
+cond %{CLIENT-HEADER:X-Test1} /^[Ff]o+[bB]ar/
+   set-header X-Match "yes"
+
+cond %{SEND_RESPONSE_HDR_HOOK} [AND]
+cond %{CLIENT-HEADER:X-We-Set} /^fie[0-9]+fum$/ [NOCASE]
+   set-header X-Match-2 "yes"
+
+cond %{REMAP_PSEUDO_HOOK} [AND]
+cond %{CLIENT-URL:PATH} /^from/
+   set-header X-We-Set "FIe123fuM"