Re: Problem with Example15

[Scott Klement <sk@xxxxxxxxxxxxxxxx>]

Your technique won't work on any site that uses name-based virtual hosts.

This is simply not the proper technique.  Neither is adding the host to 
the host table -- adding the hosts to the host table is a major kludge, 
but at least it'll work.

Your technique won't.  At least not reliably.  Sorry, but the HTTP 
protocol was just not designed to work by IP address!


On 8/9/2010 2:42 PM, Robert Rogerson wrote:
>
>     I am attempting Scott's new Example15 where he retrieves the top news
>     stories from cnn.
>     The biggest hurdle right now is that our shop DNS has been disabled on
>     our development box so nothing goes out accidentally.  I have been
>     told that DNS nor host table entries will be allowed.  I also read the
>     notes at ([1]http://www.scottklement.com/httpapi/dns.html).
>     For this reason I am hard coding an IP address in place of the host
>     name.
>     I retrieved the IP by (ping [2]rss.cnn.com) from my PC which did allow
>     me to ping cnn.
>     I then changed the folllowing url
>     // ****************************************************
>     //  Download the latest news headlines from CNN
>     //  to a temporary file in the IFS
>     // ****************************************************
>     // url = '[3]http://rss.cnn.com/rss/cnn_topstories.rss';
>     url = '[4]http://74.125.93.121/rss/cnn_topstories.rss';
>     I have successfully run examples EXAMPLE18 and EXAMPLE19 using this
>     same approach.
>     When I try the cnn example my httpapi_debug.txt contains
>     <snip>
>     HTTPAPI Ver 1.23 released 2008-04-24
>     OS/400 Ver V6R1M0
>     New iconv() objects set, PostRem=819. PostLoc=0. ProtRem=819.
>     ProtLoc=0
>     http_url_get(): entered
>     http_persist_open(): entered
>     http_long_ParseURL(): entered
>     DNS resolver retrans: 2
>     DNS resolver retry  : 2
>     DNS resolver options: x'00000136'
>     DNS default domain: [5]KOHLANDFRISCH.COM
>     WARNING: No name servers are configured for DNS resolution! You will
>     not be able to contact Internet hosts! See
>     [6]http://www.scottklement.com/httpapi/dns.html for more information.
>     http_persist_get(): entered
>     http_long_ParseURL(): entered
>     do_get(): entered
>     GET /rss/cnn_topstories.rss HTTP/1.1
>     Host: 74.125.93.121
>     User-Agent: http-api/1.23
>     recvresp(): entered
>     HTTP/1.1 404 Not Found
>     Date: Fri, 06 Aug 2010 12:35:17 GMT
>     Content-Type: text/html; charset=UTF-8
>     Server: ghs
>     Content-Length: 1376
>     X-XSS-Protection: 0
>     SetError() #13: HTTP/1.1 404 Not Found
>     recvdoc parms: identity 1376
>     header_load_cookies() entered
>     recvdoc(): entered
>     SetError() #0:
>     </snip>
>     Does anyone have any suggestions of alternate methods or why I am
>     getting the 404 error?  When I type in the address on my PC it works
>     file.
>     Thanks,
>     Rob
>     The following is in httpapi_debug.txt after an attempt.
>
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