I'm sending some data in a HTTP POST to an asp page. The data contains
some + characters. When I try to access the data using
Request.Form("data") I get the data but the + characters are replaced
by spaces.
Any ideas?
wrote on 04 jul 2007 in microsoft.public.inetserver.asp.general:
> I'm sending some data in a HTTP POST to an asp page. The data contains
> some + characters. When I try to access the data using
> Request.Form("data") I get the data but the + characters are replaced
> by spaces.
Not true!
Try:
=========== test.asp ===========
<% = request.form("t")%>
fergallydon@hotmail.com wrote:
> I'm sending some data in a HTTP POST to an asp page. The data contains
> some + characters. When I try to access the data using
> Request.Form("data") I get the data but the + characters are replaced
> by spaces.
>
Please post a simple page that reproduces the symptoms you are experiencing.
"+" characters should not be replaced.
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On Jul 4, 9:32 pm, "Bob Barrows [MVP]"
wrote:
> fergally...@hotmail.com wrote:
> > I'm sending some data in a HTTP POST to an asp page. The data contains
> > some + characters. When I try to access the data using
> > Request.Form("data") I get the data but the + characters are replaced
> > by spaces.
>
> Please post a simple page that reproduces the symptoms you are experiencing.
> "+" characters should not be replaced.
> --
> Microsoft MVP - ASP/ASP.NET
> Please reply to the newsgroup. This email account is my spam trap so I
> don't check it very often. If you must reply off-line, then remove the
> "NO SPAM"
Thanks for you help. I tried that example and I see now that they
should not be replaced. I better explain in more detail what I'm
doing. I'm sending this request from a C++ application as follows.
pIXMLHTTPRequest.CreateInstance("Msxml2.XMLHTTP.3.0");
pIXMLHTTPRequest->open(_bstr_t(L"POST"), bstrurl, false);
pIXMLHTTPRequest->setRequestHeader("Content-Type", "application/x-www-
form-urlencoded");
pIXMLHTTPRequest->send("t=1+2+3");
I'm testing by writing to file on the server
fnameLicense.Write(Request("t"))
The file content is
1 2 3
I have examined what's being sent to the server using an ethernet
sniffer on the server and I can see t=1+2+3 in one of the packets
received. Anyone know what I'm missing?
news:1183624655.319156.324670@q69g2000hsb.googlegroups.com.. .
> On Jul 4, 9:32 pm, "Bob Barrows [MVP]"
> wrote:
> > fergally...@hotmail.com wrote:
> > > I'm sending some data in a HTTP POST to an asp page. The data contains
> > > some + characters. When I try to access the data using
> > > Request.Form("data") I get the data but the + characters are replaced
> > > by spaces.
> >
> > Please post a simple page that reproduces the symptoms you are
experiencing.
> > "+" characters should not be replaced.
> > --
> > Microsoft MVP - ASP/ASP.NET
> > Please reply to the newsgroup. This email account is my spam trap so I
> > don't check it very often. If you must reply off-line, then remove the
> > "NO SPAM"
>
> Thanks for you help. I tried that example and I see now that they
> should not be replaced. I better explain in more detail what I'm
> doing. I'm sending this request from a C++ application as follows.
>
> pIXMLHTTPRequest.CreateInstance("Msxml2.XMLHTTP.3.0");
> pIXMLHTTPRequest->open(_bstr_t(L"POST"), bstrurl, false);
> pIXMLHTTPRequest->setRequestHeader("Content-Type", "application/x-www-
> form-urlencoded");
> pIXMLHTTPRequest->send("t=1+2+3");
>
> I'm testing by writing to file on the server
>
> fnameLicense.Write(Request("t"))
>
> The file content is
> 1 2 3
>
> I have examined what's being sent to the server using an ethernet
> sniffer on the server and I can see t=1+2+3 in one of the packets
> received. Anyone know what I'm missing?
>
The + is using in URL encoding to encode a space.
Use %2B instead of +
"t=1%2B2%2B3"
On Jul 5, 11:04 am, "Anthony Jones"
>
>
> news:1183624655.319156.324670@q69g2000hsb.googlegroups.com.. .
>
>
>
>
>
> > On Jul 4, 9:32 pm, "Bob Barrows [MVP]"
> > wrote:
> > > fergally...@hotmail.com wrote:
> > > > I'm sending some data in a HTTP POST to an asp page. The data contains
> > > > some + characters. When I try to access the data using
> > > > Request.Form("data") I get the data but the + characters are replaced
> > > > by spaces.
>
> > > Please post a simple page that reproduces the symptoms you are
> experiencing.
> > > "+" characters should not be replaced.
> > > --
> > > Microsoft MVP - ASP/ASP.NET
> > > Please reply to the newsgroup. This email account is my spam trap so I
> > > don't check it very often. If you must reply off-line, then remove the
> > > "NO SPAM"
>
> > Thanks for you help. I tried that example and I see now that they
> > should not be replaced. I better explain in more detail what I'm
> > doing. I'm sending this request from a C++ application as follows.
>
> > pIXMLHTTPRequest.CreateInstance("Msxml2.XMLHTTP.3.0");
> > pIXMLHTTPRequest->open(_bstr_t(L"POST"), bstrurl, false);
> > pIXMLHTTPRequest->setRequestHeader("Content-Type", "application/x-www-
> > form-urlencoded");
> > pIXMLHTTPRequest->send("t=1+2+3");
>
> > I'm testing by writing to file on the server
>
> > fnameLicense.Write(Request("t"))
>
> > The file content is
> > 1 2 3
>
> > I have examined what's being sent to the server using an ethernet
> > sniffer on the server and I can see t=1+2+3 in one of the packets
> > received. Anyone know what I'm missing?
>
> The + is using in URL encoding to encode a space.
>
> Use %2B instead of +
>
> "t=1%2B2%2B3"- Hide quoted text -
>
> - Show quoted text -
Thanks. That works for the example but the trouble is that I won't be
sending t=1%2B2%2B3 all the time. That was just an example. I'll be
sending something that is read from a file and I don't know whether or
not it contains any + chars.
I guess I could parse the string before hand and replace all
occurances of + with %2B but is there any other way?
Anthony Jones wrote:
>
>> Thanks for you help. I tried that example and I see now that they
>> should not be replaced. I better explain in more detail what I'm
>> doing. I'm sending this request from a C++ application as follows.
>>
>> pIXMLHTTPRequest.CreateInstance("Msxml2.XMLHTTP.3.0");
>> pIXMLHTTPRequest->open(_bstr_t(L"POST"), bstrurl, false);
>> pIXMLHTTPRequest->setRequestHeader("Content-Type",
>> "application/x-www- form-urlencoded");
>> pIXMLHTTPRequest->send("t=1+2+3");
>>
>> I'm testing by writing to file on the server
>>
>> fnameLicense.Write(Request("t"))
>>
>> The file content is
>> 1 2 3
>>
>> I have examined what's being sent to the server using an ethernet
>> sniffer on the server and I can see t=1+2+3 in one of the packets
>> received. Anyone know what I'm missing?
>>
>
> The + is using in URL encoding to encode a space.
>
> Use %2B instead of +
>
> "t=1%2B2%2B3"
Anthony,
I'm a little puzzzled here. I see from the reply that your suggestion
worked, but I'm curious as to why URL encoding is relevant with a POST. Is
this a peculiarity of the HTTPRequest object? If so, the OP is going to have
to worry about other characters besides "+", isn't he? He's basically going
to have to url-encode any data that he sends via this object.
I've never had to do this when using HTTPrequest, but then again, I've
always put my data into an xml document to be posted via HTTPRequest.
I wonder if he can avoid the url-encoding step by doing this from his C++
application ...
--
Microsoft MVP - ASP/ASP.NET
Please reply to the newsgroup. This email account is my spam trap so I
don't check it very often. If you must reply off-line, then remove the
"NO SPAM"
On Jul 5, 12:10 pm, "Bob Barrows [MVP]"
wrote:
> Anthony Jones wrote:
> >
> >> Thanks for you help. I tried that example and I see now that they
> >> should not be replaced. I better explain in more detail what I'm
> >> doing. I'm sending this request from a C++ application as follows.
>
> >> pIXMLHTTPRequest.CreateInstance("Msxml2.XMLHTTP.3.0");
> >> pIXMLHTTPRequest->open(_bstr_t(L"POST"), bstrurl, false);
> >> pIXMLHTTPRequest->setRequestHeader("Content-Type",
> >> "application/x-www- form-urlencoded");
> >> pIXMLHTTPRequest->send("t=1+2+3");
>
> >> I'm testing by writing to file on the server
>
> >> fnameLicense.Write(Request("t"))
>
> >> The file content is
> >> 1 2 3
>
> >> I have examined what's being sent to the server using an ethernet
> >> sniffer on the server and I can see t=1+2+3 in one of the packets
> >> received. Anyone know what I'm missing?
>
> > The + is using in URL encoding to encode a space.
>
> > Use %2B instead of +
>
> > "t=1%2B2%2B3"
>
> Anthony,
> I'm a little puzzzled here. I see from the reply that your suggestion
> worked, but I'm curious as to why URL encoding is relevant with a POST. Is
> this a peculiarity of the HTTPRequest object? If so, the OP is going to have
> to worry about other characters besides "+", isn't he? He's basically going
> to have to url-encode any data that he sends via this object.
>
> I've never had to do this when using HTTPrequest, but then again, I've
> always put my data into an xml document to be posted via HTTPRequest.
>
> I wonder if he can avoid the url-encoding step by doing this from his C++
> application ...
This is probably what I should be doing in the first place. Any links
to examples of this in C++?
fergallydon@hotmail.com wrote:
> On Jul 5, 12:10 pm, "Bob Barrows [MVP]"
> wrote:
>> I've never had to do this when using HTTPrequest, but then again,
>> I've always put my data into an xml document to be posted via
>> HTTPRequest.
>>
>> I wonder if he can avoid the url-encoding step by doing this from
>> his C++ application ...
>
> This is probably what I should be doing in the first place. Any links
> to examples of this in C++?
Sorry, not from me. You might try searching MSDN or posting to a C++ group.
Just be aware that the ASP page to which you are posting this will also need
to be revised to handle an xml document submission instead of the straight
text submission. I believe I have an example somewhere ... let me do some
searching.
--
Microsoft MVP - ASP/ASP.NET
Please reply to the newsgroup. This email account is my spam trap so I
don't check it very often. If you must reply off-line, then remove the
"NO SPAM"
"Bob Barrows [MVP]"
news:OrZzdUvvHHA.4736@TK2MSFTNGP04.phx.gbl...
> Anthony Jones wrote:
> >
> >> Thanks for you help. I tried that example and I see now that they
> >> should not be replaced. I better explain in more detail what I'm
> >> doing. I'm sending this request from a C++ application as follows.
> >>
> >> pIXMLHTTPRequest.CreateInstance("Msxml2.XMLHTTP.3.0");
> >> pIXMLHTTPRequest->open(_bstr_t(L"POST"), bstrurl, false);
> >> pIXMLHTTPRequest->setRequestHeader("Content-Type",
> >> "application/x-www- form-urlencoded");
> >> pIXMLHTTPRequest->send("t=1+2+3");
> >>
> >> I'm testing by writing to file on the server
> >>
> >> fnameLicense.Write(Request("t"))
> >>
> >> The file content is
> >> 1 2 3
> >>
> >> I have examined what's being sent to the server using an ethernet
> >> sniffer on the server and I can see t=1+2+3 in one of the packets
> >> received. Anyone know what I'm missing?
> >>
> >
> > The + is using in URL encoding to encode a space.
> >
> > Use %2B instead of +
> >
> > "t=1%2B2%2B3"
>
> Anthony,
> I'm a little puzzzled here. I see from the reply that your suggestion
> worked, but I'm curious as to why URL encoding is relevant with a POST.
URL encoding is relevant because the content type of the entity body is
application/x-www-form-urlencoded. Which basically uses the same
"name1=value&name2=value" method to list the field values as it would
appear in the query string, that includes any escaping you would expect in
query string had actually ben part of a URL.
> Is this a peculiarity of the HTTPRequest object?
Nope it is the specification for the mime type.
> If so, the OP is going to have
> to worry about other characters besides "+", isn't he? He's basically
going
> to have to url-encode any data that he sends via this object.
Yep. I suspect that he could actually get away with just encoding &, % and
+, since other characters typically encoded by url encoding only have
special meaning when actually in a URL.
So personally I'd go with:-
CString value("^&'{}|][+\"<>\\");
value.Replace("%", "%25");
value.Replace("+", "%2B");
value.Replace("&", "%26");
pIXMLHTTPRequest->Send(value.GetString());
Another appoach is to use UrlEscape from the shlwapi.dll. It would need the
URL_ESCAPE_PERCENT flag and then you'd still need to encode the plus signs
since it doesn't do those.
>
> I've never had to do this when using HTTPrequest, but then again, I've
> always put my data into an xml document to be posted via HTTPRequest.
You would not have tried to read the XML from Request.Form but would have
read the Request entity in the raw. In the above case it is the Form object
in the Request which is parsing the entity body and doing the unescaping.
>
> I wonder if he can avoid the url-encoding step by doing this from his C++
> application ...
The question is does the receiving ASP page need to use Form fields because
it also supports POSTs from HTML forms? If so then we need to continue to
emulate the HTML Form or change how the page containing the form works.
What else is available? Sending the string raw and setting the content type
to "text/plain" is an option but ASP doesn't make retrieving a simple string
from the Request easy. You'd need to use an ADODB stream to take the the
result of BinaryRead and then return the string.
XML is my prefered option (I never use HTML Forms) and it's easy enough to
do in VB/VBScript/Javascript. Bit more of a pain in C++ if you've only got
a couple of fields to send.
Anthony.
Anthony Jones wrote:
>> I'm a little puzzzled here. I see from the reply that your suggestion
>> worked, but I'm curious as to why URL encoding is relevant with a
>> POST.
>
> URL encoding is relevant because the content type of the entity body
> is application/x-www-form-urlencoded.
Ah! of course.
--
Microsoft MVP - ASP/ASP.NET
Please reply to the newsgroup. This email account is my spam trap so I
don't check it very often. If you must reply off-line, then remove the
"NO SPAM"