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redirecting from http to ftp

 [1/11] from: ryan:christiansen:intellisol at: 28-Jun-2001 9:36


In Internet Explorer, when I go to this URL http://www.bebits.com/bob/232/MailToI.zip Internet Explorer redirects to this URL ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip I am trying to make REBOL perform the same redirection. When I use the following... port: open http://www.bebits.com/bob/232/MailToI.zip redirect-url: make url! probe port/url REBOL gets "stuck" and simply reconnects over and over again to the http URL and never receives the ftp URL as input. What am I missing? Ryan C. Christiansen Web Developer Intellisol International 4733 Amber Valley Parkway Fargo, ND 58104 701-235-3390 ext. 6671 FAX: 701-235-9940 http://www.intellisol.com Global Leader in People Performance Software _____________________________________ Confidentiality Notice This message may contain privileged and confidential information. If you think, for any reason, that this message may have been addressed to you in error, you must not disseminate, copy or take any action in reliance on it, and we would ask you to notify us immediately by return email to [ryan--christiansen--intellisol--com]

 [2/11] from: ryan:christiansen:intellisol at: 28-Jun-2001 11:29


Whoah! As you can see from this echo output, REBOL keeps adding a "/" to its GET operation and keeps trying... What's up with that? Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET /bob/232/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET //bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET ///bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET ////bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET /////bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET //////bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET ///////bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET ////////bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET /////////bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET //////////bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET ///////////bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET ////////////bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com } Ryan C. Christiansen Web Developer Intellisol International 4733 Amber Valley Parkway Fargo, ND 58104 701-235-3390 ext. 6671 FAX: 701-235-9940 http://www.intellisol.com Global Leader in People Performance Software _____________________________________ Confidentiality Notice This message may contain privileged and confidential information. If you think, for any reason, that this message may have been addressed to you in error, you must not disseminate, copy or take any action in reliance on it, and we would ask you to notify us immediately by return email to [ryan--christiansen--intellisol--com] [ryan--christiansen--inte] llisol.com To: [rebol-list--rebol--com] Sent by: cc: [rebol-bounce--rebol--com] Subject: [REBOL] redirecting from http to ftp 06/28/2001 09:36 AM Please respond to rebol-list In Internet Explorer, when I go to this URL http://www.bebits.com/bob/232/MailToI.zip Internet Explorer redirects to this URL ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip I am trying to make REBOL perform the same redirection. When I use the following... port: open http://www.bebits.com/bob/232/MailToI.zip redirect-url: make url! probe port/url REBOL gets "stuck" and simply reconnects over and over again to the http URL and never receives the ftp URL as input. What am I missing? Ryan C. Christiansen Web Developer Intellisol International 4733 Amber Valley Parkway Fargo, ND 58104 701-235-3390 ext. 6671 FAX: 701-235-9940 http://www.intellisol.com Global Leader in People Performance Software _____________________________________ Confidentiality Notice This message may contain privileged and confidential information. If you think, for any reason, that this message may have been addressed to you in error, you must not disseminate, copy or take any action in reliance on it, and we would ask you to notify us immediately by return email to [ryan--christiansen--intellisol--com]

 [3/11] from: ryan:christiansen:intellisol at: 28-Jun-2001 11:25


Here is echo output with trace/net on if it helps at all. } Net-log: "HTTP/1.1 301 Moved Permanently" Net-log: ["Opening tcp for" HTTP] connecting to: www.bebits.com Net-log: {GET //bob/232/ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip HTTP/1.0 Accept: */* Connection: close User-Agent: REBOL 2.5.0.3.1 Host: www.bebits.com [ryan--christiansen--inte] llisol.com To: [rebol-list--rebol--com] Sent by: cc: [rebol-bounce--rebol--com] Subject: [REBOL] redirecting from http to ftp 06/28/2001 09:36 AM Please respond to rebol-list In Internet Explorer, when I go to this URL http://www.bebits.com/bob/232/MailToI.zip Internet Explorer redirects to this URL ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip I am trying to make REBOL perform the same redirection. When I use the following... port: open http://www.bebits.com/bob/232/MailToI.zip redirect-url: make url! probe port/url REBOL gets "stuck" and simply reconnects over and over again to the http URL and never receives the ftp URL as input. What am I missing? Ryan C. Christiansen Web Developer Intellisol International 4733 Amber Valley Parkway Fargo, ND 58104 701-235-3390 ext. 6671 FAX: 701-235-9940 http://www.intellisol.com Global Leader in People Performance Software _____________________________________ Confidentiality Notice This message may contain privileged and confidential information. If you think, for any reason, that this message may have been addressed to you in error, you must not disseminate, copy or take any action in reliance on it, and we would ask you to notify us immediately by return email to [ryan--christiansen--intellisol--com]

 [4/11] from: sterling:rebol at: 28-Jun-2001 9:54


The short version is "that's not right." The HTTP protocol is not expecting to be forwarded to FTP, or any other different protocol for that matter, so it makes no provision for that type of situation. And, as shown by you, the results are rather unexpected. Sterling

 [5/11] from: ryanc:iesco-dms at: 28-Jun-2001 10:05


View handles the response a bit better...
>> system/version
== 1.2.1.3.1
>> read http://www.bebits.com/bob/232/MailToI.zip
** User Error: Error. Target url: http://www.bebits.com//bob/232/ftp://ftp.v ortex.is/pub/be/jonr/MailToI.zip could not be retrieved. Circular forwarding detected ** Near: read http://www.bebits.com/bob/232/MailToI.zip
>> ; Hmmm. >> x-ray: func [f c][f: open f insert f c c: copy f close f c] >> print x-ray tcp://www.bebits.com:80 "GET /bob/232/MailToI.zip http/1.0^/^/"
HTTP/1.1 301 Moved Permanently Date: Thu, 28 Jun 2001 16:16:51 GMT Server: Apache/1.3.9 (Unix) TARP/0.42-alpha PHP/4.0.4pl1 secured_by_Raven/1.4 .2 X-Powered-By: PHP/4.0.4pl1 Location: ftp://ftp.vortex.is/pub/be/jonr/MailToI.zip Connection: close Content-Type: text/html
>> save %http.txt system/schemes/http ; Enlightening in situations like these
A dirty fix might be to read the header for situations as this, but RT should probably implement a special error for FTP redirect, so you can just do your own redirection when it is encountered. I heard their is another way to get that header info, anyone? --Ryan [ryan--christiansen--intellisol--com] wrote:
> In Internet Explorer, when I go to this URL > http://www.bebits.com/bob/232/MailToI.zip
<<quoted lines omitted: 27>>
> [rebol-request--rebol--com] with "unsubscribe" in the > subject, without the quotes.
-- Ryan Cole Programmer Analyst www.iesco-dms.com 707-468-5400

 [6/11] from: ryan:christiansen:intellisol at: 28-Jun-2001 12:18


OK. So how can I fix it? I want the script to at least error out instead of keep trying over and over again. Using an if error? try statement doesn't help. -Ryan [sterling--rebo] l.com To: [rebol-list--rebol--com] Sent by: cc: rebol-bounce@ Subject: [REBOL] Re: redirecting from http to ftp rebol.com 06/28/2001 11:54 AM Please respond to rebol-list The short version is "that's not right." The HTTP protocol is not expecting to be forwarded to FTP, or any other different protocol for that matter, so it makes no provision for that type of situation. And, as shown by you, the results are rather unexpected. Sterling

 [7/11] from: rotenca:telvia:it at: 29-Jun-2001 2:57


> OK. So how can I fix it? I want the script to at least error out instead of > keep trying over and over again. Using an if error? try statement doesn't > help.
I'm new with rebol, but to learn i have written this script. ------------------------------------------------------------------------------ REBOL[ Title: "Redirecting HTTP to FTP" Author: "Romano Paolo Tenca" Version: 1.0.0 Date: 29/06/01 Purpose: { Try a http url if fail for error 800 (redirect to a ftp site) return a custom object (redir) with info for the ftp Perhaps worked better if it was an object with a public routine embedded but it is my first Rebol routine } History: [ "It doesn't check ftp error" 29/06/01 ] ] HttpRedir?: function [url [url!]] [rule err porterr redir-str] [ rule:[to "http://" to "ftp://" copy redir-str to " could" "could" "not" "be" retrieved. "Circular" "forwarding" "detected" to end] redir: make object! [ net: "http" ;type of connection success: true ;false for failure urlpath: url ;url (http or ftp) urlob: decode-url url ;standard object! purl err: ;standard object! error type: none ;type of fftp url ("file" | "dir") ] if error? porterr: try [info? url][ err: disarm porterr redir/success: false redir/err: err if err/code = 800 [ redir-str: copy "" parse err/arg1 rule if redir-str <> "" [ redir/success: true redir/net: "ftp" redir/urlpath: to-url redir-str redir/urlob: decode-url redir-str either dir? redir/urlpath [ ;is a dir redir/type: "dir" ][ ;is a file redir/type: "file" ] ] ] ] return redir ] r: HttpRedir? http://www.bebits.com/bob/232/MailToI.zip either r/success = true [ print ["You can open" r/net r/urlpath "(ftp type" r/type ")"] ][ print ["Error on open http" r/err/code ] ]

 [8/11] from: ryan:christiansen:intellisol at: 29-Jun-2001 11:04


Hmm... I tried this function, but it doesn't seem to behave any differently than using 'open. -Ryan
> OK. So how can I fix it? I want the script to at least error out instead
of
> keep trying over and over again. Using an if error? try statement doesn't > help.
I'm new with rebol, but to learn i have written this script. ------------------------------------------------------------------------------ REBOL[ Title: "Redirecting HTTP to FTP" Author: "Romano Paolo Tenca" Version: 1.0.0 Date: 29/06/01 Purpose: { Try a http url if fail for error 800 (redirect to a ftp site) return a custom object (redir) with info for the ftp Perhaps worked better if it was an object with a public routine embedded but it is my first Rebol routine } History: [ "It doesn't check ftp error" 29/06/01 ] ] HttpRedir?: function [url [url!]] [rule err porterr redir-str] [ rule:[to "http://" to "ftp://" copy redir-str to " could" "could" "not" be retrieved. "Circular" "forwarding" "detected" to end] redir: make object! [ net: "http" ;type of connection success: true ;false for failure urlpath: url ;url (http or ftp) urlob: decode-url url ;standard object! purl err: ;standard object! error type: none ;type of fftp url ("file" | "dir") ] if error? porterr: try [info? url][ err: disarm porterr redir/success: false redir/err: err if err/code = 800 [ redir-str: copy "" parse err/arg1 rule if redir-str <> "" [ redir/success: true redir/net: "ftp" redir/urlpath: to-url redir-str redir/urlob: decode-url redir-str either dir? redir/urlpath [ ;is a dir redir/type: "dir" ][ ;is a file redir/type: "file" ] ] ] ] return redir ] r: HttpRedir? http://www.bebits.com/bob/232/MailToI.zip either r/success = true [ print ["You can open" r/net r/urlpath "(ftp type" r/type ")"] ][ print ["Error on open http" r/err/code ] ]

 [9/11] from: ryanc:iesco-dms at: 29-Jun-2001 9:45


Probably because he made it using View. View returns an error in this case--a funny one, but still returns an error. Try upgrading, or maybe even patching Cores http scheme with the one from View. BTW, Romano, looks like nice work for a "beginner." --Ryan [ryan--christiansen--intellisol--com] wrote:
> Hmm... I tried this function, but it doesn't seem to behave any > differently than using 'open.
<<quoted lines omitted: 75>>
> [rebol-request--rebol--com] with "unsubscribe" in the > subject, without the quotes.
-- Ryan Cole Programmer Analyst www.iesco-dms.com 707-468-5400

 [10/11] from: ryan:christiansen:intellisol at: 29-Jun-2001 12:17


It errors out nicely in View. Thanks. -Ryan Ryan Cole <[ryanc--iesco-] To: [rebol-list--rebol--com] dms.com> cc: Sent by: Subject: [REBOL] Re: R: Re: redirecting from http to ftp rebol-bounce@ rebol.com 06/29/2001 11:45 AM Please respond to rebol-list Probably because he made it using View. View returns an error in this case--a funny one, but still returns an error. Try upgrading, or maybe even patching Cores http scheme with the one from View. BTW, Romano, looks like nice work for a "beginner." --Ryan [ryan--christiansen--intellisol--com] wrote:
> Hmm... I tried this function, but it doesn't seem to behave any > differently than using 'open. > > -Ryan > > > OK. So how can I fix it? I want the script to at least error out
instead
> of > > keep trying over and over again. Using an if error? try statement
doesn't
> > help. > > I'm new with rebol, but to learn i have written this script. >
------------------------------------------------------------------------------
> REBOL[ > Title: "Redirecting HTTP to FTP"
<<quoted lines omitted: 66>>
> [rebol-request--rebol--com] with "unsubscribe" in the > subject, without the quotes.
-- Ryan Cole Programmer Analyst www.iesco-dms.com 707-468-5400

 [11/11] from: rotenca:telvia:it at: 30-Jun-2001 18:27


> Probably because he made it using View. View returns an error in this
case--a
> funny one, but still returns an error. Try upgrading, or maybe even
patching
> Cores http scheme with the one from View.
Yes, i made it with View.
> BTW, Romano, looks like nice work for a "beginner."
Thank you very much!
> --Ryan
Romano Paolo Tenca

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