O se sui o le matou tagata faʻatau, o lana faʻaputuga talosaga o loʻo nofo i le Microsoft cloud (Azure), na faʻatalanoaina se faʻafitauli: talu ai nei, o nisi o talosaga mai nisi o tagata faʻatau mai Europa na amata ona faʻamutaina i le sese 400 (). O talosaga uma o lo'o tusia ile .NET, fa'apipi'i ile Kubernetes...
O se tasi o talosaga o le API, lea e oʻo mai ai fefaʻatauaiga uma. O lenei fefaʻatauaʻiga e faʻalogo i ai le HTTP server , configured e le .NET client ma talimalo i se pod. Faatasi ai ma le debugging, sa matou laki i le uiga o loʻo i ai se tagata faʻapitoa e faʻaaogaina le faʻafitauli. Ae ui i lea, o mea uma na faigata i le laina o feoaiga:
O le mea sese i Ingress e pei o lenei:
{
"number_fields":{
"status":400,
"request_time":0.001,
"bytes_sent":465,
"upstream_response_time":0,
"upstream_retries":0,
"bytes_received":2328
},
"stream":"stdout",
"string_fields":{
"ingress":"app",
"protocol":"HTTP/1.1",
"request_id":"f9ab8540407208a119463975afda90bc",
"path":"/api/sign-in",
"nginx_upstream_status":"400",
"service":"app",
"namespace":"production",
"location":"/front",
"scheme":"https",
"method":"POST",
"nginx_upstream_response_time":"0.000",
"nginx_upstream_bytes_received":"120",
"vhost":"api.app.example.com",
"host":"api.app.example.com",
"user":"",
"address":"83.41.81.250",
"nginx_upstream_addr":"10.240.0.110:80",
"referrer":"https://api.app.example.com/auth/login?long_encrypted_header",
"service_port":"http",
"user_agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36",
"time":"2019-03-06T18:29:16+00:00",
"content_kind":"cache-headers-not-present",
"request_query":""
},
"timestamp":"2019-03-06 18:29:16",
"labels":{
"app":"nginx",
"pod-template-generation":"6",
"controller-revision-hash":"1682636041"
},
"namespace":"kube-nginx-ingress",
"nsec":6726612,
"source":"kubernetes",
"host":"k8s-node-55555-0",
"pod_name":"nginx-v2hcb",
"container_name":"nginx",
"boolean_fields":{}
}I le taimi lava e tasi, na avatu ai e Kestrel:
HTTP/1.1 400 Bad Request
Connection: close
Date: Wed, 06 Mar 2019 12:34:20 GMT
Server: Kestrel
Content-Length: 0E oo lava i le tele o upu, o le Kestrel sese na i ai le tele itiiti faamatalaga aoga:
{
"number_fields":{"ThreadId":76},
"stream":"stdout",
"string_fields":{
"EventId":"{"Id"=>17, "Name"=>"ConnectionBadRequest"}",
"SourceContext":"Microsoft.AspNetCore.Server.Kestrel",
"ConnectionId":"0HLL2VJSST5KV",
"@mt":"Connection id "{ConnectionId}" bad request data: "{message}"",
"@t":"2019-03-07T13:06:48.1449083Z",
"@x":"Microsoft.AspNetCore.Server.Kestrel.Core.BadHttpRequestException: Malformed request: invalid headers.n at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.Http1Connection.TryParseRequest(ReadResult result, Boolean& endConnection)n at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.<ProcessRequestsAsync>d__185`1.MoveNext()",
"message":"Malformed request: invalid headers."
},
"timestamp":"2019-03-07 13:06:48",
"labels":{
"pod-template-hash":"2368795483",
"service":"app"
},
"namespace":"production",
"nsec":145341848,
"source":"kubernetes",
"host":"k8s-node-55555-1",
"pod_name":"app-67bdcf98d7-mhktx",
"container_name":"app",
"boolean_fields":{}
}E foliga mai e naʻo le tcpdump o le a fesoasoani e foia lenei faʻafitauli ... ae o le a ou toe fai atu e uiga i le faasologa o auala:
Su'esu'ega
E manino lava, e sili atu le fa'alogo i feoaiga i luga o lena node patino, lea na faʻapipiʻi ai e Kubernetes se pod: o le tele o le lapisi o le a faʻapea o le a mafai ai ona maua se mea sili ona vave. Ma e moni lava, pe a suʻesuʻeina, na matauina le faʻavaa lea:
GET /back/user HTTP/1.1
Host: api.app.example.com
X-Request-ID: 27ceb14972da8c21a8f92904b3eff1e5
X-Real-IP: 83.41.81.250
X-Forwarded-For: 83.41.81.250
X-Forwarded-Host: api.app.example.com
X-Forwarded-Port: 443
X-Forwarded-Proto: https
X-Original-URI: /front/back/user
X-Scheme: https
X-Original-Forwarded-For: 83.41.81.250
X-Nginx-Geo-Client-Country: Spain
X-Nginx-Geo-Client-City: M.laga
Accept-Encoding: gzip
CF-IPCountry: ES
CF-RAY: 4b345cfd1c4ac691-MAD
CF-Visitor: {"scheme":"https"}
pragma: no-cache
cache-control: no-cache
accept: application/json, text/plain, */*
origin: https://app.example.com
user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36
referer: https://app.example.com/auth/login
accept-language: en-US,en;q=0.9,en-GB;q=0.8,pl;q=0.7
cookie: many_encrypted_cookies; .AspNetCore.Identity.Application=something_encrypted;
CF-Connecting-IP: 83.41.81.250
True-Client-IP: 83.41.81.250
CDN-Loop: cloudflare
HTTP/1.1 400 Bad Request
Connection: close
Date: Wed, 06 Mar 2019 12:34:20 GMT
Server: Kestrel
Content-Length: 0
Ina ua va'ava'ai toto'a i le otaota, na iloa ai le tala M.laga. E faigofie ona mate e leai se M.laga aai i Sepania (ae iai ). I le faʻaaogaina o lenei manatu, na matou vaʻavaʻai i le Ingress configs, lea na matou vaʻaia ai le faʻapipiʻi i le masina talu ai (i le talosaga a le kalani) fasipepa "le afaina".:
ingress.kubernetes.io/configuration-snippet: |
proxy_set_header X-Nginx-Geo-Client-Country $geoip_country_name;
proxy_set_header X-Nginx-Geo-Client-City $geoip_city;Ina ua uma ona faʻagata le faʻauluina o nei ulutala, na lelei mea uma! (Na vave ona manino o le talosaga lava ia e le o toe manaʻomia nei ulutala.)
Sei o tatou tilotilo la i le faafitauli sili atu lautele. E mafai ona faigofie ona toe gaosia i totonu o le talosaga e ala i le faia o se talosaga telnet i localhost:80:
GET /back/user HTTP/1.1
Host: api.app.example.com
cache-control: no-cache
accept: application/json, text/plain, */*
origin: https://app.example.com
Cookie: test=Desiree
... toe foi mai 401 Unauthorized, e pei ona faamoemoeina. O le a le mea e tupu pe a tatou faia:
GET /back/user HTTP/1.1
Host: api.app.example.com
cache-control: no-cache
accept: application/json, text/plain, */*
origin: https://app.example.com
Cookie: test=Désirée?
O le a toe foi mai 400 Bad request - i totonu o le tusi talosaga o le a matou mauaina se mea sese ua leva ona matou masani ai:
{
"@t":"2019-03-31T12:59:54.3746446Z",
"@mt":"Connection id "{ConnectionId}" bad request data: "{message}"",
"@x":"Microsoft.AspNetCore.Server.Kestrel.Core.BadHttpRequestException: Malformed request: invalid headers.n at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.Http1Connection.TryParseRequest(ReadResult result, Boolean& endConnection)n at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.<ProcessRequestsAsync>d__185`1.MoveNext()",
"ConnectionId":"0HLLLR1J974L9",
"message":"Malformed request: invalid headers.",
"EventId":{
"Id":17,
"Name":"ConnectionBadRequest"
},
"SourceContext":"Microsoft.AspNetCore.Server.Kestrel",
"ThreadId":71
}O taunuʻuga
Aemaise lava Kestrel fa'agasolo sa'o le fa'auluuluga HTTP fa'atasi ai ma fa'ailoga sa'o i le UTF-8, o lo'o iai i igoa o se numera tele o taulaga.
O se mea faʻaopoopo i la matou mataupu e le o fuafua nei e le kalani e suia le faʻatinoga o Kestrel i le talosaga. Ae ui i lea, o mataupu i AspNetCore lava ia (, ) latou fai mai o le a le fesoasoani lenei mea ...
I se aotelega: o le faʻamatalaga e le o toe faʻatatau i faʻafitauli faʻapitoa a Kestrel poʻo UTF-8 (i le 2019?!), ae e uiga i le mea moni e faapea. mafaufau ma su'esu'e faifaipea O laasaga uma e te faia a o suʻeina faʻafitauli o le a vave pe mulimuli ane fua mai. Manuia lava!
SALA
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