Indy 10 socket error 11001 Host not found
lazarus / 38-Networking and Web Programming

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teriyaki · 2021-10-20 03:24

I install Indy10 and try to get the content of url using indy idhttp

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i var 
get_url: string;  resp: TMemoryStream;begin  get_url :=
'http://www.yahoo.com';//edit2.Text;  resp := TMemoryStream.Create; 
try    IdHTTP1.Get(get_url+'v', resp);    resp.Position := 0; // <--
add this!!    memo1.Lines.LoadFromStream(resp);  finally   
resp.Free;  end;
but it always reports error

socket error 11001 Host not found

I even enable the inbound/outbound right of my app in windows defender
firewall.

but the error has not change


your comment welcome

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engkin · 2021-10-20 06:00

get_url+'v'?

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dsiders · 2021-10-20 13:43

Quote from: engkin on October 20, 2021, 08:00:32 amget_url+'v'?

GIGO

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Remy Lebeau · 2021-10-20 18:20

Quote from: teriyaki on October 20, 2021, 05:24:11 amCode: Pascal
 [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i
IdHTTP1.Get(get_url+'v', resp);
Why are you appending 'v' to the URL?  You are asking TIdHTTP to
retrieve the URL 'http://www.yahoo.comv', and obviously the hostname
'www.yahoo.comv' does not exist, hence the error.

Also, note that http://www.yahoo.com redirects https://www.yahoo.com,
so you need to have an SSLIOHandler component assigned to the
TIdHTTP.IOHandler property, such as TIdSSLIOHandlerSocketOpenSSL. 
Which TIdHTTP can handle for you, provided you have a suitable
SSLIOHandler unit in your uses clause.