XML-RPC structs and case-sensitivity
XML-RPC structs and case-sensitivity
- Subject: XML-RPC structs and case-sensitivity
- From: Matt Deatherage <email@hidden>
- Date: Wed, 21 Jul 2004 14:31:04 -0500
For some reason, my battles with case-sensitivity and AppleScript continue. :(
I need to call an XML-RPC method on a remote server with a single parameter of a <struct> that looks like this:
>
<struct>
>
<member>
>
<name>Param1</name>
>
<value><i4>56</i4></value>
>
</member>
>
<member>
>
<name>Param2A</name>
>
<value><string>my string here</string></value>
>
</member>
>
<member>
>
<name>Param3b</name>
>
<value><boolean>1</boolean></name>
>
</member>
>
</struct>
The way to do this in AppleScript is with a record:
>
set myStruct to {Param1:56, Param2A:"my string here", Param3b:true}
Since this struct is the only parameter to the XML-RPC routine, I can call it fairly easily:
>
tell application "http://www.example.com/RPC2";
>
return call xmlrpc {method name:"method.Mine", parameters:myStruct}
>
end tell
After a few hours of hair-tearing, I ran an Ethernet sniffer and saw the XML that AppleScript and/or WebServicesCore is emitting:
>
<struct>
>
<member>
>
<name>param1</name>
>
<value><i4>56</i4></value>
>
</member>
>
<member>
>
<name>param2a</name>
>
<value><string>my string here</string></value>
>
</member>
>
<member>
>
<name>param3b</name>
>
<value><boolean>1</boolean></name>
>
</member>
>
</struct>
It's subtle, but important: AppleScript or WebServicesCore has lowercased the name of every member of the struct. The XML-RPC spec says nothing about ignoring case, so this particular application (which I cannot modify) is case-sensitive, and fails. I have the member names with the correct case in my record, but AppleScript won't emit them that way. It correctly preserves the case of the method name, but that's a string and I expect that.
I haven't been able to find anything on the Web or in the list archives about this, though I can't really get the list archives to respond right now (I searched my local copy for the past year or so). Either I'm missing something or there's a major flaw in the XML-RPC implementation because it forces lowercase on XML that's supposed to be case-sensitive.
(And, just to eliminate the obvious, it still fails if wrapped in a "considering case" block.)
Any ideas?
--Matt
--
Matt Deatherage <email@hidden> <
http://www.macjournals.com>
I read this list in digest mode; copy me privately for faster responses
_______________________________________________
applescript-users mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/applescript-users
Do not post admin requests to the list. They will be ignored.