Jim: full explanation of ability to retrieve all of post data.

2013-01-07T18:13:02Z

full explanation of ability to retrieve all of post data.

← Older revision		Revision as of 18:13, 7 January 2013
Line 1:		Line 1:
	===XAP Control: Get PostData===		===XAP Control: Get PostData===

-	When issued to LUN 0 in an XAP program, the "Get PostData" control gets the post data that was passed from the browser.	+	When issued to LUN 0 in an XAP program, the "Get PostData" control gets the post data that was passed from the browser. PostData may be very large if it contains one or more files selected.

	Syntax:		Syntax:
Line 9:		Line 9:
	String containing the post data from the browser		String containing the post data from the browser

-	Example ~~Result~~:	+	Example -- Transferring one or more files from browser to xap:
-	~~function~~=~~getpostdata~~&~~hidden~~=~~hiddenvalue~~	+
		+	Html page that sets up the transfer:
		+
		+	<pre>
		+	<form action="http://signature.net:8080/xap/p1"
		+	enctype="multipart/form-data" method="post">
		+	<p>
		+	Type some text (if you like):<br>
		+	<input type="text" name="textline" size="30">
		+	</p>
		+	<p>
		+	Please specify a file, or a set of files:<br>
		+	<br><input type="file" name="file1" size="40">
		+	<br><input type="file" name="file2" size="40">
		+	<br><input type="file" name="file3" size="40">
		+	</p>
		+	<div>
		+	<input type="submit" value="Send">
		+	</div>
		+	</form>
		+	</pre>
		+
		+	Program that receives the result:
		+
		+	<pre>
		+
		+	!//IB// Obj(p1,xap)
		+
		+	length dynamic & local postdata$ separator$ line$ section$ body$
		+	length 16.0 & local i section seplen
		+	clear
		+
		+	postdata$ = Control( 0, "Get PostData" )
		+
		+	Print '<p>Program P1 Active'
		+	i = len(postdata$)
		+	print '<p>length of postdata is ';i
		+	seplen = pos('@0d@',postdata$)-1
		+	print '<p>separator length ';seplen
		+	separator$ = sub(postdata$,1,seplen)
		+	print '<br>separator=';separator$
		+	postdata$ = sub(postdata$,seplen+2,len(postdata$))
		+	do
		+	!separate each section
		+	i = pos(separator$,postdata$)
		+	section$ = sub(postdata$,1,i-1)
		+
		+	if i = 0 goto done
		+	section = section + 1
		+	print '<p>Section ';section
		+	postdata$ = sub(postdata$,i+seplen+1,len(postdata$))
		+
		+	! separate each line
		+	do
		+	i = pos('@0d@',section$)
		+	if i = 1 goto body
		+	line$ = sub(section$,1,i)
		+	print '<br>line=';line$
		+	section$ = sub(section$,i+2,len(section$))
		+	loop
		+	body:
		+	body$ = sub(section$,3,len(section$)-4)
		+	i = len(body$)
		+	print '<br>body len = ';i
		+	! put the body in a file
		+	erase 'body.txt', dir='tmp' noexcp
		+	create 'body.txt', dir='tmp' noexcp
		+	close(10) & open(10)'body.txt', dir='tmp' noexcp
		+	printfile(10)body$
		+	close(10)
		+
		+	loop
		+
		+	!*** Program Termination
		+	!
		+	done:
		+	close
		+	stop
		+
		+	</pre>

Skrach: Created page with "===XAP Control: Get PostData=== When issued to LUN 0 in an XAP program, the "Get PostData" control gets the post data that was passed from the browser. Syntax: output$ = Contr..."

2011-11-06T18:55:53Z

Created page with "===XAP Control: Get PostData=== When issued to LUN 0 in an XAP program, the "Get PostData" control gets the post data that was passed from the browser. Syntax: output$ = Contr..."

New page

===XAP Control: Get PostData===

When issued to LUN 0 in an XAP program, the "Get PostData" control gets the post data that was passed from the browser.

Syntax:
output$ = Control( 0, "Get PostData" )

Return Value:
String containing the post data from the browser

Example Result:
function=getpostdata&hidden=hiddenvalue

Get PostData - Revision history

Jim: full explanation of ability to retrieve all of post data.

Skrach: Created page with "===XAP Control: Get PostData=== When issued to LUN 0 in an XAP program, the "Get PostData" control gets the post data that was passed from the browser. Syntax: output$ = Contr..."