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Posted to notifications@apisix.apache.org by GitBox <gi...@apache.org> on 2022/04/24 02:50:08 UTC
[GitHub] [apisix] crystal-lee opened a new issue, #6916: help request:
crystal-lee opened a new issue, #6916:
URL: https://github.com/apache/apisix/issues/6916
### Description
I use go-runner to make a plugin in ext-plugin-post-req。And my plugin is used to get target url and redirect to target。
So I do not need the upstream。But if I do not set upstream , I get 503 Service Temporarily Unavailable。
what should I do?
### Environment
- APISIX version (run `apisix version`):2.13.1
- Operating system (run `uname -a`):Linux 5fbc1a1f78bf 5.10.25-linuxkit #1 SMP Tue Mar 23 09:27:39 UTC 2021 x86_64 Linux
- OpenResty / Nginx version (run `openresty -V` or `nginx -V`):nginx version: openresty/1.19.9.1
- etcd version, if relevant (run `curl http://127.0.0.1:9090/v1/server_info`):
- APISIX Dashboard version, if relevant:
- Plugin runner version, for issues related to plugin runners:
- LuaRocks version, for installation issues (run `luarocks --version`):/usr/local/bin/luarocks 3.8.0
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[GitHub] [apisix] tzssangglass commented on issue #6916: I want use ext-plugin-post-req plugin, and do not have upstream
Posted by GitBox <gi...@apache.org>.
tzssangglass commented on issue #6916:
URL: https://github.com/apache/apisix/issues/6916#issuecomment-1134073320
> But if I do not set upstream , I get 503 Service Temporarily Unavailable。 what should I do?
upstream is required, as required by the APISIX implementation mechanism.
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[GitHub] [apisix] crystal-lee closed issue #6916: I want use ext-plugin-post-req plugin, and do not have upstream
Posted by GitBox <gi...@apache.org>.
crystal-lee closed issue #6916: I want use ext-plugin-post-req plugin, and do not have upstream
URL: https://github.com/apache/apisix/issues/6916
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[GitHub] [apisix] crystal-lee commented on issue #6916: I want use ext-plugin-post-req plugin, and do not have upstream
Posted by GitBox <gi...@apache.org>.
crystal-lee commented on issue #6916:
URL: https://github.com/apache/apisix/issues/6916#issuecomment-1133561098
This is the code。The request do not be forwarded to the upstream， but I must set a upstream?
```
func (p CBFTransfer) Filter(conf interface{}, w http.ResponseWriter, r pkgHTTP.Request) {
//跳转
Redirect(w, r, "http://www.baidu.com", http.StatusMovedPermanently)
}
```
```
func Redirect(w http.ResponseWriter, r pkgHTTP.Request, url string, code int) {
log.Infof("redirect to %s", url)
if u, err := urlpkg.Parse(url); err == nil {
// If url was relative, make its path absolute by
// combining with request path.
// The client would probably do this for us,
// but doing it ourselves is more reliable.
// See RFC 7231, section 7.1.2
if u.Scheme == "" && u.Host == "" {
oldpath := gconv.String(r.Path())
if oldpath == "" { // should not happen, but avoid a crash if it does
oldpath = "/"
}
// no leading http://server
if url == "" || url[0] != '/' {
// make relative path absolute
olddir, _ := path.Split(oldpath)
url = olddir + url
}
var query string
if i := strings.Index(url, "?"); i != -1 {
url, query = url[:i], url[i:]
}
// clean up but preserve trailing slash
trailing := strings.HasSuffix(url, "/")
url = path.Clean(url)
if trailing && !strings.HasSuffix(url, "/") {
url += "/"
}
url += query
}
}
h := w.Header()
// RFC 7231 notes that a short HTML body is usually included in
// the response because older user agents may not understand 301/307.
// Do it only if the request didn't already have a Content-Type header.
_, hadCT := h["Content-Type"]
h.Set("Location", hexEscapeNonASCII(url))
if !hadCT && (r.Method() == "GET" || r.Method() == "HEAD") {
h.Set("Content-Type", "text/html; charset=utf-8")
}
w.WriteHeader(code)
// Shouldn't send the body for POST or HEAD; that leaves GET.
if !hadCT && r.Method() == "GET" {
body := "<a href=\"" + htmlEscape(url) + "\">" + http.StatusText(code) + "</a>.\n"
fmt.Fprintln(w, body)
}
}
```
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[GitHub] [apisix] crystal-lee commented on issue #6916: I want use ext-plugin-post-req plugin, and do not have upstream
Posted by GitBox <gi...@apache.org>.
crystal-lee commented on issue #6916:
URL: https://github.com/apache/apisix/issues/6916#issuecomment-1134145623
thanks ,i get it
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[GitHub] [apisix] soulbird commented on issue #6916: I want use ext-plugin-post-req plugin, and do not have upstream
Posted by GitBox <gi...@apache.org>.
soulbird commented on issue #6916:
URL: https://github.com/apache/apisix/issues/6916#issuecomment-1107697522
If you have already operated `ResponseWriter`, the request should not be forwarded to the upstream. So, how do you implement `redirect to target`
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