I'm trying to pull data from a URL in Racket using
(html->xexp (get-pure-port (string->url url)))
However, when url is an https, I get an error along the lines of
ssl-connect: connect failed (error:14077438:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert internal error)
What else do I need to be doing to handle https?
Related
I want connection to a websocket server wss://fm.missevan.com:3016/ws。i use online websocket tool http://www.websocket-test.com to do it, but in edge browser, it's response is ok and in chrome ,the response is 403 forbidden.
Actually, i use GO language to connection wss://fm.missevan.com:3016/ws,I tried many websocket library but all failed.
I checked the request header of connected browser, there are no special fields. so who can analyze the reason of this, thanks
From Using the JavaScript Client:
Notice the lack of a protocol prefix on the server URL. Do not add http:// or ws:// to the URL that you pass to the new dispatcher. WebSocketRails will choose the best available transport for you and prepend the correct prefix automatically.
I'm using WebSocketRails for the first time. I'm getting this error in the client:
WebSocket connection to 'ws://localhost:3000/websocket' failed: Connection closed before receiving a handshake response
If I navigate my browser to http://localhost:3000/websocket, I get the messages that I am expecting. If I navigate to the ws URL, I get ERR_DISALLOWED_URL_SCHEME. So it appears that the server is producing the messages, but the client is trying the wrong protocol.
How do I force the client to use the http protocol rather than ws, or force the server to broadcast it with ws rather than http?
Finally found the answer by digging into the source code. The second parameter of the constructor is called use_websockets and defaults to true. Setting it to false apparently forces it to use http instead of ws.
var dispatcher = new WebSocketRails('localhost:3000/websocket',false);
I have a server on heroku, using https certificate. Now I am trying to build an IOS/Android app using Ionic framework and make connection to that heroku server.
The error when I do it is
"ERR CONNECTION REFUSED" when I am trying to do https://example.com/auth
And when I change it to http instead, the error is
XMLHttpRequest cannot load http://example.com/auth. The request was redirected to 'https://www.example.com/auth', which is disallowed for cross-origin requests that require preflight.
Thanks for any help.
I am trying to send a response to an HTTPS request, using FiddlerCore.
I need things to work like this: I put some fake URL in browser, like https://my_url_that_doesnt_exist.com/, then I intercept this request with FiddlerCore and respond to it with my data. But I only see a CONNECT and the host URL. I know this is because of HTTPS and Fiddler being a proxy. But is there a way to get the real full URL and be able to respond to HTTPS request, using FiddlerCore?
Also I use this code to create a root certificate if it's missing:
if (!Fiddler.CertMaker.rootCertExists())
{
if (!Fiddler.CertMaker.createRootCert())
{
throw new Exception("Could not create a certificate.");
}
}
also, I use these startup settings:
FiddlerCoreStartupFlags fcsf = FiddlerCoreStartupFlags.Default | FiddlerCoreStartupFlags.DecryptSSL|FiddlerCoreStartupFlags.AllowRemoteClients;
and CONFIG.IgnoreServerCertErrors = true;
This HTTPS request is not visible in Fiddler itself. I mean when I try some non-existent URL to which I'd like my app to respond with some custom content. It's also HTTP, not HTTPS, and Fiddler itself contains the following in response:
[Fiddler] DNS Lookup for "my_url_that_doesnt_exist.com" failed. The requested name is valid, but no data of the requested type was found
But if I use some existing HTTPS URL, like google plus or anything like that, I can see the HTTPS and all the request details.
So the question follows: How can I intercept HTTPS request to a non-existent URL and serve my content instead?
I can provide any additional details if needed.
Also makecert.exe is in the same folder where all my binaries are.
The problem is that HTTPS traffic flows through a CONNECT tunnel, and by default that secure traffic won't be sent if creating the CONNECT tunnel to the target server doesn't first succeed. Of course, if that target server doesn't exist, you end up with a DNS error in creating the tunnel, so the secure requests are never sent.
The workaround is to tell Fiddler to tell the client that the CONNECT tunnel was created, without even trying to contact the server. Do so by adding this inside the BeforeRequest handler:
if (oSession.HTTPMethodIs("CONNECT"))
{
oSession.oFlags["x-replywithtunnel"] = "GenerateTunnel";
return;
}
I am trying to generate proxy code using svcutil.exe. Service is running on the same box.
Here is console output. Any idea what's wrong?
SvcUtil.exe https ://xyz:xxx/servicename/wsdl?wsdl
Attempting to download metadata from 'https://xyz:xxx/servicename/wsdl?wsdl' using WS-
Error: Cannot obtain Metadata from https ://xyz:xxx/servicename/wsdl?wsdl
WS-Metadata Exchange Error
URI: https ://xyz:xxx/servicename/wsdl?wsdl
Metadata contains a reference that cannot be resolved: 'https ://xyz:xxx/servicename/wsdl?wsdl'.
There was no endpoint listening at https://xyz:xxx/servicename/wsdl?wsdl that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.
The remote server returned an error: (404) Not Found.
HTTP GET Error
URI: https ://xyz:xxx/servicename/wsdl?wsdl
The document was understood, but it could not be processed.
The WSDL document contains links that could not be resolved.
There was an error downloading 'https ://localhost:xxx/servicename/wsdl?wsdl=wsdl1'.
The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.
The remote certificate is invalid according to the validation procedure.
Are you sure that's the right address for the wsdl?
What are xyz and xxx? Is xxx a port number?
For example, if you browse to it using your web browser, can you see the wsdl correctly?
You can try different urls like:
http://domain/servicename
http://domain/servicename?wsdl
https://domain/servicename
https://domain/servicename?wsdl
Do any of those work in your browser and\or using svcutil.exe?
Which version of svcutil.exe are you using?
What type of web service is it that you are trying to connect to?