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+--- Forum: General (/forumdisplay.php?fid=2)
+--- Thread: How to POST / GET params with '+' char inside ? (/showthread.php?tid=21802)
How to POST / GET params with '+' char inside ? - alhyene - 2020-02-11 15:36
Hi, first sorry for the previous twice posting which were not working, may because the forum seem to be a little down at that times.
I'm trying to store some parameters on webserver which I can retrieve later in a script form, but can't get the '+' sign to be send / retrieve.
#!ipxe
set data_1:string some+thing
set data_2:uristring some+thing
params --name mydata
param --params mydata data_1 ${data_1}
param --params mydata data_2 ${data_2}
imgfetch http://webserver/conf.php##params=mydata || echo can't POST
//imgfetch http://webserver/conf.php?data_1=some+thing || echo can't GET
conf.php file from webserver :
<?php
$myfile = fopen("/var/www/html/mydata", "wb") or die("Unable to open file!");
fwrite($myfile, "#!ipxe\n");
//foreach ($_GET as $key => $value){
foreach ($_POST as $key => $value){
$txt = "set " . $key . "\t" . $value . "\n";
fwrite($myfile, $txt);
}
fclose($myfile);
?>
result of mydata file :
#!ipxe
set data_1 some thing
set data_2 some thing
I need this for URL like :
https://cloudfront.debian.net/cdimage/unofficial/non-free/cd-including-firmware/10.3.0-live+nonfree/amd64/iso-hybrid/debian-live-10.3.0-amd64-cinnamon+nonfree.iso
Any ideas ?
RE: How to POST / GET params with '+' char inside ? - myxal - 2020-02-13 10:21
Don't know the exact answer, but I think this approach should work. The hex value for ASCII "+" is 2B.
As noted there, if it doesn't work, echo the URL in iPXE.
RE: How to POST / GET params with '+' char inside ? - alhyene - 2020-02-15 22:01
thx for reply, I tried it.
set plus:hex 2b
set plus ${plus:string}
set myURL some${plus}thing
params --name mydata
param --params mydata data_1 ${myURL}
etc...
unfortunaly don't work.
Is this "bug" come from iPXE or webserver / php5 side ?
but if I try :
params --name mydata
param --params mydata data_1 some${plus}thing
etc...
I got : some_thing
and not : some+thing
params --name mydata
param --params mydata data_1 some+thing
etc...
the same (some_thing)
RE: How to POST / GET params with '+' char inside ? - myxal - 2020-02-17 00:33
Did you try echoing ${myURL}? Perhaps I misunderstood the problem - if it's the params features causing the issue, perhaps you can use standard URL encoding, and request some%2Bthing instead of some+thing?
RE: How to POST / GET params with '+' char inside ? - alhyene - 2020-02-18 14:47
Hi, yes I tried substitute with %2B like :
param --mydata data_1 some%2Bthing , with no luck...
I tried both POST & GET methods with same results.
I tried GET method by the browser and work as expected, eg :
http://127.0.0.1/conf.php?data=some%2Bthing
mydata file : some+thing
Then I think it's an iPXE issue.
But I made an ugly and dirty hack to make it works by using base64 encoding, eg :
#!ipxe
set data_1:string some+thing
set data_2.....
params --name mydata
param --params mydata data_1 ${data_1:base64}
param --params mydata data_2.....
imgfetch http://webserver/conf.php##params=mydata || echo can't POST
conf.php file from webserver :
<?php
$myfile = fopen("/var/www/html/mydata", "wb") or die("Unable to open file!");
fwrite($myfile, "#!ipxe\n");
foreach ($_POST as $key => $value){
$txt = "set " . $key . "\t" . base64_decode($value) . "\n";
fwrite($myfile, $txt);
}
fclose($myfile);
?>
result of mydata file :
#!ipxe
set data_1 some+thing
set data_2.....
