Uploading a file to LL server using an http request

I have noticed that when a user adds a document from the deskto pto livelink using the standard livelink form, the file is first uploaded into a temp directory with a temp name and then stored in liivelink after the creation of the document has been completed.This temp upload is not done using a typical request handler, as it is done before dispatch is called. I was wondering how it is done and if this method can be used to instruct livelink to upload files on the server's HD. I don't want to use LAPI as I want to work through port 80 only. I was thinking that the only way is somehow using an http request, but if anyone can think of another way, please say so. Thanks in advance!Ys

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Donna Nalls

Hi,I have never been 100% sure how the doc transfer from the client to the LL server happens, but I think when an http request is made and there is an input form field with type= file, then the document is passed to the webserver, which stores the document in the server's temp directory and passes the info off to the livelink cgi - which then pulls from the server into LL. I think that's how it works, but i'm sure Hans will correct me if i'm wrong! ;o)Regardless, if you have files on the LL server, then you can certainly upload them into livelink using a web page to invoke a request handler to initiate the request - you would just omit the input type=file and have some other indicator where the files are stored.If you don't need any manual data entry regarding where the documents are to be stored in LL, then you could write a change agent and schedule it to run periodically to poll the directories on your LL server that contain the files to be uploaded. This would eliminate the need for the manual interface.Either way, it is a very do-able customization with LL SDK!Best,DonnaWisteria IT, LLCOScript is OK!!!! ;o)

Hans_Stoop_(hstoop_(Delete)_1579932)

Message from Hans Stoop <hstoop@opentext.com> via eLink

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It is unclear for me if it is done by the webServer of by the livelink.exe program.

Be aware that in LL 9.1 SP4 and LL 9.2 SP1 the administrator can restrict from which temporary directory files can be uploaded.

Hans

From: eLink Discussion: Development Discussion [mailto:development@elinkkc.opentext.com]
Sent: vrijdag 31 december 2004 19:49
To: eLink Recipient
Subject: Hi,

Hi, Posted by dnalls (Nalls, Donna) on 12/31/2004 01:43 PM
In reply to: Uploading a file to LL server using an http request Posted by ap_stavzeti (Zeti, Stavroula) on 12/30/2004 07:12 AM

Hi,

I have never been 100% sure how the doc transfer from the client to the LL server happens, but I think when an http request is made and there is an input form field with type= file, then the document is passed to the webserver, which stores the document in the server's temp directory and passes the info off to the livelink cgi - which then pulls from the server into LL. I think that's how it works, but i'm sure Hans will correct me if i'm wrong! ;o)

Regardless, if you have files on the LL server, then you can certainly upload them into livelink using a web page to invoke a request handler to initiate the request - you would just omit the input type=file and have some other indicator where the files are stored.

If you don't need any manual data entry regarding where the documents are to be stored in LL, then you could write a change agent and schedule it to run periodically to poll the directories on your LL server that contain the files to be uploaded. This would eliminate the need for the manual interface.

Either way, it is a very do-able customization with LL SDK!
Best,
Donna
Wisteria IT, LLC
OScript is OK!!!! ;o)

Ben_Shapiro

Message from Benjamin Shapiro via eLink It depends on the web server:- IIS will store the uploaded document in memory before passing it tothe Livelink CGI (which then writes it in a temporary location) and thenpasses the path info to the Livelink server.- iPlanet/Sun One will store the uploaded document in a temporarylocation before passing it to the Livelink CGI which, (as mentionedabove,) will write it in another temporary location and then pass thepath information to Livelink. Concerns of the efficiency of this is valid, however basefunctionality of the web server we cannot get around. Cheers, Benjamin________________________________ From: eLink Discussion: Development Discussion[mailto:development@elinkkc.opentext.com] Sent: Monday, January 03, 2005 4:04 AM To: eLink Recipient Subject: RE Hi, RE Hi, Posted by hstoop (Stoop, Hans) on 01/03/2005 04:03 AM In reply to: Hi, Posted by dnalls (Nalls, Donna) on 12/31/2004 01:43 PM Message from Hans Stoop via eLink It is unclear for me if it is done by the webServer of by thelivelink.exe program. Be aware that in LL 9.1 SP4 and LL 9.2 SP1 the administrator canrestrict from which temporary directory files can be uploaded. Hans________________________________ From: eLink Discussion: Development Discussion[mailto:development@elinkkc.opentext.com] Sent: vrijdag 31 december 2004 19:49 To: eLink Recipient Subject: Hi, Hi, Posted by dnalls (Nalls, Donna) on 12/31/2004 01:43 PM In reply to: Uploading a file to LL server using an http request Posted by ap_stavzeti (Zeti, Stavroula) on 12/30/200407:12 AM Hi, I have never been 100% sure how the doc transfer from the clientto the LL server happens, but I think when an http request is made andthere is an input form field with type= file, then the document ispassed to the webserver, which stores the document in the server's tempdirectory and passes the info off to the livelink cgi - which then pullsfrom the server into LL. I think that's how it works, but i'm sure Hanswill correct me if i'm wrong! ;o) Regardless, if you have files on the LL server, then you cancertainly upload them into livelink using a web page to invoke a requesthandler to initiate the request - you would just omit the inputtype=file and have some other indicator where the files are stored. If you don't need any manual data entry regarding where thedocuments are to be stored in LL, then you could write a change agentand schedule it to run periodically to poll the directories on your LLserver that contain the files to be uploaded. This would eliminate theneed for the manual interface. Either way, it is a very do-able customization with LL SDK! Best, Donna Wisteria IT, LLC OScript is OK!!!! ;o) ________________________________ [To reply to this thread, use your normal E-mail replyfunction.] Topic: Uploading a file to LL server using an http request Discussion: Development Discussion Livelink Server: Knowledge Center

ATHANASSIOS_FAMELIARIS

Thanks, but this is not exactly my problem.I want to have a program running on the client, which will somehow upload a file to the LL server without using LAPI, as I wan't to be using port 80 obly.What doyou think about this?Ys

Hans_Stoop_(hstoop_(Delete)_1579932)

Message from Hans Stoop <hstoop@opentext.com> via eLink

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I'm not a LAPI expert, but I thought that LAPI is also using port 80 currently. Or at least you can make it use port 80.

If you want to use HTTP then you should look into how HTML forms transfer the data and do it the same way as that. These may mean that you have to make a scoket connection to the webserver and wirte raw HTTP data.

Hans

From: eLink Discussion: Development Discussion [mailto:development@elinkkc.opentext.com]
Sent: woensdag 5 januari 2005 7:24
To: eLink Recipient
Subject: But the problem is, Can I upload from client to server using an http request?

But the problem is, Can I upload from client to server using an http request? Posted by ap_stavzeti (Zeti, Stavroula) on 01/05/2005 01:21 AM
In reply to: Hi, Posted by dnalls (Nalls, Donna) on 12/31/2004 01:43 PM

Thanks, but this is not exactly my problem.

I want to have a program running on the client, which will somehow upload a file to the LL server without using LAPI, as I wan't to be using port 80 obly.

What doyou think about this?

Ys