Assambar/apache2 apr #55
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- Everything in the approach is questionable! It is just a proof of concept.
- Several layers of translations were necessary for conversion or memory ops - will need refining
- Edge cases like memory, cleanup, errors, etc are not well handled
- Only a Rust Wasm filter
Sample config
```
<IfModule wasm_module>
<Location /hello-wasm-cgi>
SetHandler wasm-handler
WasmModule /home/alexandrov/work/mod_wasm/examples/wasm_modules/rust-wasm/hello_wasm.wasm
WasmPlugin /home/alexandrov/work/mod_wasm/examples/wasm_modules/rust-wasm/edit_headers.wasm
WasmEnableCGI On
</Location>
</IfModule>
```
Sample run
```
alexandrov:~/work/mod_wasm/mod_wasm/httpd/dist/logs 16.05 10:22:00\>curl localhost:80/hello-wasm-cgi --no-progress-meter -H "operation:add" -H `"target:hahaha" | grep HTTP
"HTTP_HOST": "localhost"
"HTTP_USER_AGENT": "curl/7.68.0"
"HTTP_ACCEPT": "*/*"
"HTTP_OPERATION": "add"
"HTTP_TARGET": "hahaha"
"HTTP_ADDED": "added_value"
"SERVER_PROTOCOL": "HTTP/1.1"
alexandrov:~/work/mod_wasm/mod_wasm/httpd/dist/logs 16.05 10:22:49\>curl localhost:80/hello-wasm-cgi --no-progress-meter -H "operation:delete" -H "target:hahaha" | grep HTTP
"HTTP_HOST": "localhost"
"HTTP_USER_AGENT": "curl/7.68.0"
"HTTP_ACCEPT": "*/*"
"HTTP_OPERATION": "delete"
"SERVER_PROTOCOL": "HTTP/1.1"
alexandrov:~/work/mod_wasm/mod_wasm/httpd/dist/logs 16.05 10:22:57\>curl localhost:80/hello-wasm-cgi --no-progress-meter -H "operation:modify" -H "target:hahaha" | grep HTTP
"HTTP_HOST": "localhost"
"HTTP_USER_AGENT": "curl/7.68.0"
"HTTP_ACCEPT": "*/*"
"HTTP_OPERATION": "modify"
"HTTP_TARGET": "modified_value"
"SERVER_PROTOCOL": "HTTP/1.1"
```
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Draft PR for comparison purposes