I have the following AJAX function that I call to send post request to a web server running in Python, using Cherrypy, which runs behind Apache:
oAjax.open("POST", "/", true);
oAjax.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
oAjax.setRequestHeader("Content-length", parameters.length);
oAjax.send(parameters);
The parameters are being sent as follows:
"id=pagename&action=pageaction"
Every now and then, I get empty post data when a request is sent. This does not seem to be consistent.
Using WireShark, we get the following details for a bad request:
HTTP 543 POST /? HTTP/1.1 , NTLMSSP_NEGOTIATE
In these cases, we seem to have 0 content length, so our post data seems to have been removed.
It appears to be trying to re-authorize the session when not required, causing the post data to be lost.
Does anyone know why this would happen?
This does not occur in FireFox.
Using the information found on this website, I was able to solve the problem:
http://support.microsoft.com/kb/251404
Related
i am Learning Python and at the moment i am experimenting with the request Module.
What i did so far:
This is the API Documentation for the Endpoint i used:
https://trackapi.nutritionix.com/docs/#/default/post_v2_natural_exercise
And this is the associated Python Code:
EXERCISES_ENDPOINT = "https://trackapi.nutritionix.com/v2/natural/exercise"
header = {
"x-app-id": APP_ID,
"x-app-key": API_KEY
}
body = {
"query": "Ran 2 miles and walked for 3Km."
}
response = requests.post(url=EXERCISES_ENDPOINT, headers=header, json=body)
The corresponding http Request URL should be:
https://trackapi.nutritionix.com/v2/natural/exercise?Ran%202%20miles%20and%20walked%20%20for%203Km.
My Problem is as follows:
In Python the code ist working perfectly fine and my response is as expected
If i use Postman, this works fine too, because in both -Python and Postman - i can specify my Request as a POST Method
But if i use the URL in my MS Edge Browser (and Chrome too) i get an Error: Cannot GET /v2/natural/exercise
The Header information are ok, because i told the Browser them per "ModHeader" Extension.
But why is my Browser doing a GET and not a POST and how can i change this with the developemant tools from MS Edge Browser.
Important for my learning is to know why the Browser do a GET??
Is the Browser only able to do GET in generel and the other Methods (POST, PUT, DELETE) are not possible in this way. But that makes no sense for me :)
Thanks a lot in advance
But why is my Browser doing a GET and not a POST
Presumably because you are trying the address into the address bar of the browser.
That is designed to make a GET request because there is nothing in the UI designed to collect any of the data needed to make another request type.
The usual way to make a POST request would be to provide a user interface for it in the form of an HTML <form>.
I'm using Etags in the response headers for dynamic resources, and my client is sending future requests for the same resource with the If-None-Match header.
The client and server are interacting perfectly, and I get 304 responses if the data was not modified. I can see this on the nginx logs on my server, and the browser network tab on Firefox. However, when i log the exact same response from the whatwg-fetch response status, I'm getting 200.
Although react doesn't re-render if there is not diff in the data, all the processing till that point (dispatching actions, running custom data manipulation etc) are being executed, which is consuming too much memory.
I'm using react-boilerplate, which is internally whatwg-fetch, and too far out to make a U-turn and start using xhrHttpRequests, which apparently don't have this problem from the scant resources I found in other parts of the web.
Please help; I can attach logs and notes if need be. Thanks :)
I am trying to develop a website that reads a JSON response from a certain endpoint and post it after certain processing to the page.
I am using $http.get(url) (AngularJS)
However I am facing problems getting the response.
I have tried to use other URLs and it worked then the cause of the problem probably is not the code.
The Error is: "No Access Control Allow Origin header is present on the requested resource".
Other responses suggested something related to CORS and privacy issues ; but when i type the URL directly in my browser it gives a JSON response directly. (So basically there is no privacy issues in the server side right?)
My question is what should I do ? Is there another way to get the content of the page pointed by the url (i am sure that it will only contains the JSON response)
Thanks in Advance
I came across this question:
1. If we substitute the URL in the address bar, it is similar to receiving data from the server of this site
In order to send requests to other servers need to use JSONP HTTPS for secure channel
Sending data can be carried out, but with the replies received will be a problem in the form JSON
Please send to the server if use PHP, then use CURL
JS->Our server->Server api->Our server->JS
I have a Symfony2 API and an AngularJS app which consumes it.
I'm facing a problem when trying to connect a member. It should work like this :
The client sends a POST request to the API, on the route /api/public/users/connection. The content of the request is a JSON object like this : {"username":"qzdqzd","password":"qzdqzdc"}
The server verifies the request and send back either a 400 response, with a body containing the error message (such as "This username does not exist."), or a 200 response, with the API key in the content to be stored in a cookie.
I'm facing a very strange problem. I have two instances of the API : one in my computer, in local, and the other one on the web (http://api.galaxia-online.com). When my AngularJS code is configured to request the local API, it works as expected :
It's in french, but you can see in red the error message.
But when I change my AngularJS code to request the distant API, with the same request, I receive a 400 error code, but with no content in the response. Plus, Firefox tells me that I have a CORS problem.
I thought at first that I misconfigured CORS on the server, but! When I try to do the exact same request with a dedicated browser addon (RESTClient in my case), it works perfectly :
So I start to think that the problem could be caused by AngularJS. The request seems valid, and seems to work as it do in RESTClient, but AngularJS doesn't receive anything.
I'll be grateful if someone has a clue.
I'm trying to get an arduino to login in to a website that I have created.
On the website there is a basic form that has two fields one for password and one for username, it also has a submit button labelled login.
I used fiddler2 to sniff the http packets when I login in using chrome and am trying to use the information from that http post to recreate my own post to login.
Here is the portion of the code that I am using for the login:
if (client.connect(server, 80)) {
Serial.println("connected to server");
// Make a HTTP request:
client.println("POST/username=slwhore&passwd=1234qwer%21&op2=login&lang=english&force_session=1&return=B%3AaHR0cDovL3JlbW90bGV0LmNvbS8%3D&message=0&loginfrom=loginmodule&cbsecuritym3=cbm_56b7d5e7_00583e07_b0b6f81b4c86d117542f5cc7b7c3416e&Submit=Login HTTP/1.1");
client.println("Host:www.remotlet.com");
client.println("Content-Type: application/x-www-form-urlencoded");
client.println("Content-Length: 229");
client.println("Connection: close");
client.println();
I then have another piece of code that recieves the information coming back from the host which I know works. When I run this code I am able to connect to the server but I don't get any response form it at all. Any help would be greatly appreciated.
Your HTTP request is completely wrong, it will never ever be accepted by any kind of server web.
1st line: the HTTP 1st line is METHOD URI VERSION.
You didn't put a space between the method and the URI, also the POST data is not part of the URI as it is when using GET requests. I don't know what your server uses but usually sane logins don't use GET and don't pass the login inside the URI.
2nd line: you forgot a space
4th line: you set a content length but you don't send any content apparently.
General consideration: in HTTP the line terminator is \r\n, not just \n.
I suggest you do the request with the browser, intercept the traffic with wireshark and see how it's done.