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Posted to notifications@apisix.apache.org by "Sn0rt (via GitHub)" <gi...@apache.org> on 2023/04/05 06:20:07 UTC
[GitHub] [apisix] Sn0rt commented on issue #9226: bug: body-transformer should have a smaller priority than proxy-cache
Sn0rt commented on issue #9226:
URL: https://github.com/apache/apisix/issues/9226#issuecomment-1496977212
try reproduce
version info
```
the last commit of APISIX is `c86c05b72322a2267289c366eafc999107bb047c`
```
1. install the golang process
```
curl http://localhost:3000
<SOAP-ENV:Envelope
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Header/>
<SOAP-ENV:Body>
<ns2:CapitalCityResponse
xmlns:ns2="http://spring.io/guides/gs-producing-web-service">
<ns2:CapitalCityResult>hello</ns2:CapitalCityResult>
</ns2:CapitalCityResponse>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
```
2. confirm the router
```shell
curl -X GET http://127.0.0.1:9180/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1'|jq
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 1542 0 1542 0 0 149k 0 --:--:-- --:--:-- --:--:-- 150k
{
"value": {
"plugins": {
"proxy-cache": {
"cache_strategy": "memory",
"cache_bypass": [
"$arg_bypass"
],
"cache_http_status": [
200
],
"cache_key": [
"$uri",
"-cache-id"
],
"cache_ttl": 300,
"hide_cache_headers": true,
"no_cache": [
"$arg_test"
],
"cache_method": [
"POST"
],
"cache_zone": "memory_cache",
"cache_control": false
},
"body-transformer": {
"request": {
"template": "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:web=\"http://www.oorsprong.org/websamples.countryinfo\"><soapenv:Header/><soapenv:Body><web:CapitalCity><web:sCountryISOCode>{{_escape_xml(country)}}</web:sCountryISOCode></web:CapitalCity></soapenv:Body></soapenv:Envelope>",
"input_format": "json"
},
"response": {
"template": "{\"result\": {*_escape_json(Envelope.Body.CapitalCityResponse.CapitalCityResult)*}}",
"input_format": "xml"
}
},
"file-logger": {
"include_resp_body": false,
"path": "logs/file.log"
},
"proxy-rewrite": {
"uri": "/websamples.countryinfo/CountryInfoService.wso",
"headers": {
"set": {
"Accept-Encoding": "identity",
"Content-Type": "text/xml"
}
},
"use_real_request_uri_unsafe": false
},
"response-rewrite": {
"headers": {
"set": {
"Content-Type": "application/json"
}
},
"body_base64": false
}
},
"uri": "/capital",
"methods": [
"GET",
"POST",
"PUT",
"DELETE",
"PATCH",
"HEAD",
"OPTIONS",
"CONNECT",
"TRACE",
"PURGE"
],
"id": "1",
"priority": 0,
"status": 1,
"create_time": 1680670219,
"update_time": 1680674853,
"upstream": {
"nodes": {
"localhost:3000": 1
},
"type": "roundrobin",
"hash_on": "vars",
"scheme": "http",
"pass_host": "pass"
},
"name": "TempConvertRoute"
},
"createdIndex": 43,
"modifiedIndex": 477,
"key": "/apisix/routes/1"
}
```
3. however. I got a 5xx response
```
curl http://127.0.0.1:9080/capital -X POST -d '{"country":"foo"}' -v
Note: Unnecessary use of -X or --request, POST is already inferred.
* Trying 127.0.0.1:9080...
* Connected to 127.0.0.1 (127.0.0.1) port 9080 (#0)
> POST /capital HTTP/1.1
> Host: 127.0.0.1:9080
> User-Agent: curl/7.88.1
> Accept: */*
> Content-Length: 17
> Content-Type: application/x-www-form-urlencoded
>
< HTTP/1.1 500 Internal Server Error
< Date: Wed, 05 Apr 2023 06:18:56 GMT
< Content-Type: application/json
< Transfer-Encoding: chunked
< Connection: close
< Server: APISIX/3.2.0
<
<html>
<head><title>500 Internal Server Error</title></head>
<body>
<center><h1>500 Internal Server Error</h1></center>
<hr><center>openresty</center>
</body>
</html>
* Closing connection 0
```
the error msg as follow
```
2023/04/05 06:16:21 [error] 30746#30746: *17567 lua entry thread aborted: runtime error: /home/ec2-user/apisix/apisix/core/ctx.lua:309: variable "upstream_cache_key" not found for writing; maybe it is a built-in variable that is not changeable or you forgot to use "set $upstream_cache_key '';" in the config file to define it first
stack traceback:
coroutine 0:
[C]: in function 'error'
/usr/local/openresty/lualib/resty/core/var.lua:144: in function '__newindex'
/home/ec2-user/apisix/apisix/core/ctx.lua:309: in function '__newindex'
/home/ec2-user/apisix/apisix/plugins/proxy-cache/init.lua:151: in function 'phase_func'
/home/ec2-user/apisix/apisix/plugin.lua:1094: in function 'run_plugin'
/home/ec2-user/apisix/apisix/init.lua:666: in function 'http_access_phase'
access_by_lua(nginx.conf:318):2: in main chunk, client: 127.0.0.1, server: _, request: "POST /capital HTTP/1.1", host: "127.0.0.1:9080"
2023/04/05 06:16:21 [error] 30746#30746: *17567 [lua] body-transformer.lua:123: transform(): response body decode: /home/ec2-user/apisix//deps/share/lua/5.1/xml2lua.lua:92: Unbalanced Tag (/body) [char=155]
, body=<html>
<head><title>500 Internal Server Error</title></head>
<body>
<center><h1>500 Internal Server Error</h1></center>
<hr><center>openresty</center>
</body>
</html>
, client: 127.0.0.1, server: _, request: "POST /capital HTTP/1.1", host: "127.0.0.1:9080"
2023/04/05 06:16:21 [error] 30746#30746: *17567 [lua] body-transformer.lua:202: phase_func(): failed to transform response body: <html>
<head><title>500 Internal Server Error</title></head>
<body>
<center><h1>500 Internal Server Error</h1></center>
<hr><center>openresty</center>
</body>
</html>
, client: 127.0.0.1, server: _, request: "POST /capital HTTP/1.1", host: "127.0.0.1:9080"
2023/04/05 06:18:56 [error] 30746#30746: *21768 lua entry thread aborted: runtime error: /home/ec2-user/apisix/apisix/core/ctx.lua:309: variable "upstream_cache_key" not found for writing; maybe it is a built-in variable that is not changeable or you forgot to use "set $upstream_cache_key '';" in the config file to define it first
stack traceback:
coroutine 0:
[C]: in function 'error'
/usr/local/openresty/lualib/resty/core/var.lua:144: in function '__newindex'
/home/ec2-user/apisix/apisix/core/ctx.lua:309: in function '__newindex'
/home/ec2-user/apisix/apisix/plugins/proxy-cache/init.lua:151: in function 'phase_func'
/home/ec2-user/apisix/apisix/plugin.lua:1094: in function 'run_plugin'
/home/ec2-user/apisix/apisix/init.lua:666: in function 'http_access_phase'
access_by_lua(nginx.conf:318):2: in main chunk, client: 127.0.0.1, server: _, request: "POST /capital HTTP/1.1", host: "127.0.0.1:9080"
2023/04/05 06:18:56 [error] 30746#30746: *21768 [lua] body-transformer.lua:123: transform(): response body decode: /home/ec2-user/apisix//deps/share/lua/5.1/xml2lua.lua:92: Unbalanced Tag (/body) [char=155]
, body=<html>
<head><title>500 Internal Server Error</title></head>
<body>
<center><h1>500 Internal Server Error</h1></center>
<hr><center>openresty</center>
</body>
</html>
, client: 127.0.0.1, server: _, request: "POST /capital HTTP/1.1", host: "127.0.0.1:9080"
2023/04/05 06:18:56 [error] 30746#30746: *21768 [lua] body-transformer.lua:202: phase_func(): failed to transform response body: <html>
<head><title>500 Internal Server Error</title></head>
<body>
<center><h1>500 Internal Server Error</h1></center>
<hr><center>openresty</center>
</body>
</html>
, client: 127.0.0.1, server: _, request: "POST /capital HTTP/1.1", host: "127.0.0.1:9080"
```
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