Post command

Pierre Sahores psahores at easynet.fr
Sat May 1 05:36:43 EDT 2004


Hi Alain,

Le 1 mai 04, à 02:41, Alain Farmer a écrit :

> Hello,
>
> I need help, folks.
>
> I have been creating a MetaCard stack that submits to
> a server-side PHP program. The payload of the post cmd
> is of type "text/xml" and, specifically, it is the XML
> that an XML-RPC program expects.
>
> The above submit works fine, and the server-side
> program returns what it is supposed to, b-u-t ... and
> here's the problem ... when the content is lengthy, my
> client-side stack does NOT wait long enough for the
> whole reply, and breaks-off the HTTP connection too
> soon.
>
> What do I need to do to make my MC client WAIT for the
> server-side program to complete the transmission of
> its reply? Should I be using the urlStatus function?

I use this kind of "POST" method handler without problem all the time 
to access server-sided Rev or MC apps trough Apache and a PHP sockets 
listener/port translator. The first below line is important :

>> set httpheaders to "Content-type: application/x-www-form-urlencoded" 
>> & return

Try to see if you can pick somthing usable from the example code 
below...

>> on adddatas
>>   if (fld "citation" of card 1 of stack "ccitalis" is not "*" \
>>       and fld "citation" of card 1 of stack "ccitalis" is not "" \
>>       and fld "citation" of card 1 of stack "ccitalis" is not "Saisir 
>> ici la nouvelle citation..." \
>>       and fld "citation" of card 1 of stack "ccitalis" is not "Saisir 
>> ici les extraits de citation (mots-clés et/ou expressions littérales 
>> - utiliser" && quote & "+" & quote && "comme item de concaténation) 
>> entrant dans la sélection de recherche...") \
>>       and (fld "auteur__" of card 1 of stack "ccitalis" is not "*" \
>>       and fld "auteur__" of card 1 of stack "ccitalis" is not "" \
>>       and fld "auteur__" is not "Saisir ici le nom de l'auteur..." \
>>       and fld "auteur__" of card 1 of stack "ccitalis" is not "Saisir 
>> ici les noms d'auteurs (utiliser" && quote & "+" & quote && "comme 
>> item de concaténation) entrant dans la sélection de recherche...") \
>>       and (fld "concept_" of card 1 of stack "ccitalis" is not "*" \
>>       and fld "concept_" of card 1 of stack "ccitalis" is not "" \
>>       and fld "concept_" of card 1 of stack "ccitalis" is not "Saisir 
>> ici le concept de référence..." \
>>       and fld "concept_" of card 1 of stack "ccitalis" is not "Saisir 
>> ici le concept entrant dans la sélection de recherche...") then
>>     put "ci001=FE8&END=" into retour
>>     set httpheaders to "Content-type: 
>> application/x-www-form-urlencoded" & return
>>     post retour to url (fld "csrecents" of cd 2 of stack "ccitalis")
>>     if it is "" then
>>       answer "La connexion avec le serveur distant est rompue." & 
>> return & return & \
>>           "Vérifiez votre configuration d'accès à l'internet"
>>       exit adddatas
>>     end if
>>     if lineoffset(word 1 to -1 of fld "slogin" of cd 2 of stack 
>> "ccitalis" & "¶" & word 1 to -1 of fld "smdp" of cd 2 of stack 
>> "ccitalis" & "¶",macoscharset(it)) is not "0" then
>>       put "|TI1=" & fld "citation" & \
>>           "|TI2=" & fld "auteur__" & \
>>           "|TI3=" & fld "titre___" & \
>>           "|TI4=" & fld "date____" & \
>>           "|TI5=" & fld "concept_" & \
>>           "|TI6=" & fld "comment_" & \
>>           "|IDC=" & encef(word 1 to -1 of fld "slogin" of cd 2 of 
>> stack "ccitalis") & \
>>           "|VAL=" & encef(word 1 to -1 of fld "smdp" of cd 2 of stack 
>> "ccitalis") into larequete
>>       put isocharset(larequete) into larequete
>>       replace "&" with "¶" in larequete
>>       replace "|" with "&" in larequete
>>       put "ci001=FN1" & urlencode(larequete) & "&END=" into retour
>>       set httpheaders to "Content-type: 
>> application/x-www-form-urlencoded" & return
>>       post retour to url (fld "csrecents" of cd 2 of stack "ccitalis")
>>       if it is "" then
>>         answer "La connexion avec le serveur distant est rompue." & 
>> return & return & \
>>             "Vérifiez votre configuration d'accès à l'internet" & 
>> return & "avant de poursuivre." & return & return & \
>>             "(succès des tests de 0% en 0 secondes)"
>>         exit adddatas
>>       else answer it
>>     else answer "Vous devez vous authentifier comme utilisateur" & 
>> return & "habilité à la saisie avant de pouvoir proposer de nouvelles 
>> citations !"
>>   else answer "Saisissez, au minimum, une citation un auteur et un 
>> concept, SVP !"
>> end adddatas

If the server side of your app is a MC/Rev Stack or Script, it's 
important to add the below line of code to the "on preopenstack" or "on 
startup" handlers :

>>  set the socketTimeoutInterval to "10"

Such kind of requests runs without troubble. In about testing the 
limits of the method (MC/Rev client app, Apache + PHP + MC app server + 
PostgreSQL back-end), it's able to let the client receive up to 16 Mo 
of datas peer query trough a 10 Mbits LAN...

Hope this will help,

Kind Regards, Pierre

> ....
>
> Btw, this XMLRPC stack will be shared with the
> community and will, therefore, help a *LOT* of people;
> notably the Rev and Pan wikis, not to mention a school
> commission, a  network of consultants, the lab I work
> for, etc.
>
> So please help me if you can,
>
> Alain F
>
>
> 	
> 		
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-- 
Bien cordialement, Pierre Sahores

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psahores+ at +easynet.fr

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