This page on msdn contains definitions of HTTP status codes presumably used in WinHTTP. Is there a way to retrieve HTTP status code from request made in WinHttp?
The only way I've found to get to response text, is to call WinHttpQueryHeaders, which returns HTTP response like this:
HTTP/1.1 404 Not Found
Date: Wed, 28 May 2014 08:20:29 GMT
Content-Length: 0
Server: Microsoft-HTTPAPI/2.0
Do I have to parse this string by myself to get status code, or is there some way already provided by WinHttp to do this?
Use this to read http status code (hRequest - handle of the request).
DWORD dwStatusCode = 0;
DWORD dwSize = sizeof(dwStatusCode);
WinHttpQueryHeaders(hRequest,
WINHTTP_QUERY_STATUS_CODE | WINHTTP_QUERY_FLAG_NUMBER,
WINHTTP_HEADER_NAME_BY_INDEX,
&dwStatusCode, &dwSize, WINHTTP_NO_HEADER_INDEX);
Related
I'm trying to access 'nested' headers with the REST Client extension for VS Code.
I defined a GET CSRF_Token request that stores the "Set-Cookie" header inside a #token_response variable.
However the header looks like this:
'csrftoken=aGHuGkRbApH3qAksHHR3uaOKG0eZsYne; expires=Wed, 22 Nov 2023 08:40:05 GMT; Max-Age=31449600; Path=/; SameSite=Lax'
I already tried to access it with something like:
#csrf_token = {{token_response.0.split(';').0.split('=').1}}
and
#csrf_token = {{token_response.//[0].//split(';')[0].//split('=')[1]}}
But this does not seem to be the correct syntax.
Also the documentation does not contain any hints on that yet, sadly.
Now my question is:
Is there a way to only extract the part of the header that contains the value of the "csrftoken" key?
And if so, how?
Here is my code:
# Get CSRF Token
# #name getToken
GET http://{{host}}/api/csrf_token
#token_response = {{getToken.response.headers.Set-Cookie}}
#csrf_token = {{token_response}}
######
# Edit existing xyz
PATCH http://{{host}}/api/xyz/1
content-type: application/json
x-csrftoken: {{csrf_token}}
origin: http://{{host}}
{
"name": "some name"
}
Thanks a lot in advance! :)
I'm trying to find out if a specific User is present in a supergroup, in order to keep track of those who left.
For that, I'm calling the Bot API method getChatMember for each User and checking if their status is either Left or Kicked. However, I noticed that (recently?) I'm getting USER_ID_INVALID errors for many valid users that are either in the supergroup or have been in the past and then left. I also confirmed that those accounts are still active on Telegram.
Here's the HTTP request I'm sending:
POST https://api.telegram.org/botXXXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXX/getChatMember HTTP/1.1
Connection: Keep-Alive
Content-Type: application/json; charset=utf-8
Content-Length: 46
Host: api.telegram.org
{"chat_id":-0000000000000,"user_id":000000000}
And here's the response I'm getting:
HTTP/1.1 400 Bad Request
Server: nginx/1.12.2
Date: Fri, 20 Apr 2018 04:17:32 GMT
Content-Type: application/json
Content-Length: 74
Connection: keep-alive
Access-Control-Allow-Origin: *
Access-Control-Expose-Headers: Content-Length,Content-Type,Date,Server,Connection
{"ok":false,"error_code":400,"description":"Bad Request: USER_ID_INVALID"}
Any way I look at it, it looks like a perfectly valid request to me. And I haven't been able to find a common pattern between the users that throw this error.
What am I missing here?
EDIT: As #sean pointed out, having one of those users message the bot privately fixed the error for that particular user. But I'm absolutely sure that user was seen before because that's how I got his user ID. What could have caused the bot "forget" about him and how would I prevent this from happening in the future?
This error means your bot haven't seen this user before.
For instance, my user ID is 109780439, you can try getChatMember with #PublicTestGroup, it should response with 400 error.
And then, forward ANY of my message (e.g., this) to your bot, you will see the different result :)
You will create a variable who get your channel's result, like this:
$join : api.telegram.org/botYOURTOKEN/getchat .....
if($message && (strpos($join,'"status":"left"') or strpos($join,'"Bad Request: USER_ID_INVALID"') or strpos($join,'"status":"kicked"'))!== false) {
}
Somehow in my request response header "Request-Context" coming and i tried to remove that using in web.config and Response.Headers.Remove("Request-Context"); in global.asax but that header is not getting removed.
In the value of that header I am getting some Appid and I am not sure from where that is coming.
Here is response header of my request.
Cache-Control:no-cache, no-store
Content-Encoding:gzip
Content-Length:140
Content-Type:application/json; charset=utf-8
Date:Tue, 20 Feb 2018 09:48:28 GMT
Pragma:no-cache
Request-Context:appId=cid-v1:b650ed48-297a-4ea2-af46-0a5a5d26a82b
Vary:Accept-Encoding
Any help appreciated. Thanks in Advance.
Request-Context is used for cross-component correlation when 2 of your applications use different instrumentation keys.
In this case, knowing caller or callee appId (passed in the header) allows to build application map and trace correlated telemetry across instrumentation keys
You may set RequestTrackingTelemetryModule.SetComponentCorrelationHttpHeaders to false to prevent header to be added to the response.
You can do it in applicationInsights xml file, just find RequestTrackingTelemetryModule element and add false under it.
Refer link: https://github.com/Microsoft/ApplicationInsights-dotnet-server/issues/739#issuecomment-367774652
Usually, we use POST to create a resource on the server-side.
So ideally if everything goes right, the server should respond either with a 201 Created HTTP status or in case of an asynchronous operation with 202 Accepted HTTP status.
Is there any valid scenario where a POST request can be returning a 200 OK HTTP status?
Or should we never use 200 OK HTTP status for a POST request?
I see 200 as a very common response to POST requests on internet. It's fine to use it.
From RFC 7231:
6.3.1. 200 OK
The 200 (OK) status code indicates that the request has succeeded.
The payload sent in a 200 response depends on the request method.
For the methods defined by this specification, the intended meaning
of the payload can be summarized as:
GET a representation of the target resource;
HEAD the same representation as GET, but without the
representation
data;
POST a representation of the status of, or results obtained from,
the action;
PUT, DELETE a representation of the status of the action;
OPTIONS a representation of the communications options;
TRACE a representation of the request message as received by the
end
server.
And section 4.3.3:
Responses to POST requests are only cacheable when they include
explicit freshness information (see Section 4.2.1 of [RFC7234]).
However, POST caching is not widely implemented. For cases where an
origin server wishes the client to be able to cache the result of a
POST in a way that can be reused by a later GET, the origin server MAY
send a 200 (OK) response containing the result and a Content-Location
header field that has the same value as the POST's effective request
URI (Section 3.1.4.2).
Yes, You can return 200 Ok HTTP status, but you SHOULD return a response BODY.
In general, we have 3 options according to your API requirements:
Return 201 Created HTTP status, with EMPTY BODY.
In case you don't need to return a response body.
Return 200 Ok HTTP status, with BODY.
In case you need to return a response body [containg created resource].
Return 202 Accepted HTTP status, with EMPTY BODY.
In case the action will be queued.
Is there any way we could get directly say the 1000 characters after the first 5000 characters, skipping everything before that after sending in an HTTP request to an HTTPS page using either GET or POST in VB.NET?
The reason why I ask this question is because in one of the webpage I am trying the get through my program, the website is sending response data in chunks with the first chunk containing some javascript garbage that I have no interest in, the only data I care is in the second chunk and
I have no idea how to get the second chunk after receiving the first one since it is within the same HTTP request
It would save some time and Internet traffic if I can skip the first chunk that I do not need.
Is that possible or I am just day dreaming?
Many thanks!
ADDED:
Here is how a typical header of the response I am getting from the webpage I am trying to get:
Date: Mon, 20 Jun 2011 13:21:56 GMT
Set-Cookie: JSESSIONID=1AF1AF9EF936E1CB2FA85B750EDC67C4; Path=****some path******; Secure
Content-Type: text/html; charset=ISO-8859-1
Transfer-Encoding: chunked
Set-Cookie: **********some cookie***************
path=/
Vary: Accept-Encoding, User-Agent
Not sure if that helps, but as you can see, the chunk size is not visible to me, there is no "Trailer" in the header as well.
Fun little problem. Look at RANGE in the following GET request.
GET /file.txt HTTP/1.1
Host: localhost
Range: bytes=5000-6000
Connection: Close
Edit: Found a HTTP example.
Here is an example in PHP. (Sorry I couldn't find any VB.NET examples).