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Posted to httpclient-users@hc.apache.org by Thomas Hehl <th...@nowhereatall.com> on 2005/10/02 17:31:47 UTC
400 Bad Request
OK, I'm attempting to reverse engineer another client application that accesses information over HTTP.
Here is the TCPDUMP of the first request I'm trying to replicate.
10:55:59.390625 IP HEAVYMOVER.1079 > orgmeta.xmlsweb.com.3245: P 1:216(215) ack 1 win 65535
0x0000: 4500 00ff 0565 4000 8006 f2e2 c0a8 0004 E....e@.........
0x0010: 0c9a 346b 0437 0cad 3131 29ce 3692 a511 ..4k.7..11).6...
0x0020: 5018 ffff a6ec 0000 4745 5420 2f6f 7267 P.......GET./org
0x0030: 732e 786d 6c20 4854 5450 2f31 2e31 0d0a s.xml.HTTP/1.1..
0x0040: 4163 6365 7074 3a20 2a2f 2a0d 0a41 6363 Accept:.*/*..Acc
0x0050: 6570 ep
Seems simple enough. So I coded it up through httpclient. Here's the log...
2005/10/02 11:15:56:531 EDT [DEBUG] HttpClient - Java version: 1.5.0_05
2005/10/02 11:15:56:531 EDT [DEBUG] HttpClient - Java vendor: Sun Microsystems I
nc.
2005/10/02 11:15:56:531 EDT [DEBUG] HttpClient - Java class path: rex.jar
2005/10/02 11:15:56:531 EDT [DEBUG] HttpClient - Operating system name: Windows
XP
2005/10/02 11:15:56:531 EDT [DEBUG] HttpClient - Operating system architecture:
x86
2005/10/02 11:15:56:531 EDT [DEBUG] HttpClient - Operating system version: 5.1
2005/10/02 11:15:56:640 EDT [DEBUG] HttpClient - SUN 1.5: SUN (DSA key/parameter
generation; DSA signing; SHA-1, MD5 digests; SecureRandom; X.509 certificates;
JKS keystore; PKIX CertPathValidator; PKIX CertPathBuilder; LDAP, Collection Cer
tStores)
2005/10/02 11:15:56:640 EDT [DEBUG] HttpClient - SunRsaSign 1.5: Sun RSA signatu
re provider
2005/10/02 11:15:56:640 EDT [DEBUG] HttpClient - SunJSSE 1.5: Sun JSSE provider(
PKCS12, SunX509 key/trust factories, SSLv3, TLSv1)
2005/10/02 11:15:56:640 EDT [DEBUG] HttpClient - SunJCE 1.5: SunJCE Provider (im
plements RSA, DES, Triple DES, AES, Blowfish, ARCFOUR, RC2, PBE, Diffie-Hellman,
HMAC)
2005/10/02 11:15:56:640 EDT [DEBUG] HttpClient - SunJGSS 1.0: Sun (Kerberos v5)
2005/10/02 11:15:56:640 EDT [DEBUG] HttpClient - SunSASL 1.5: Sun SASL provider(
implements client mechanisms for: DIGEST-MD5, GSSAPI, EXTERNAL, PLAIN, CRAM-MD5;
server mechanisms for: DIGEST-MD5, GSSAPI, CRAM-MD5)
2005/10/02 11:15:56:640 EDT [DEBUG] DefaultHttpParams - Set parameter http.usera
gent = Jakarta Commons-HttpClient/3.0-rc3
2005/10/02 11:15:56:640 EDT [DEBUG] DefaultHttpParams - Set parameter http.proto
col.version = HTTP/1.1
2005/10/02 11:15:56:640 EDT [DEBUG] DefaultHttpParams - Set parameter http.conne
ction-manager.class = class org.apache.commons.httpclient.SimpleHttpConnectionMa
nager
2005/10/02 11:15:56:640 EDT [DEBUG] DefaultHttpParams - Set parameter http.proto
col.cookie-policy = rfc2109
2005/10/02 11:15:56:640 EDT [DEBUG] DefaultHttpParams - Set parameter http.proto
col.element-charset = US-ASCII
2005/10/02 11:15:56:640 EDT [DEBUG] DefaultHttpParams - Set parameter http.proto
col.content-charset = ISO-8859-1
2005/10/02 11:15:56:656 EDT [DEBUG] DefaultHttpParams - Set parameter http.metho
d.retry-handler = org.apache.commons.httpclient.DefaultHttpMethodRetryHandler@1d
6096
2005/10/02 11:15:56:656 EDT [DEBUG] DefaultHttpParams - Set parameter http.datep
arser.patterns = [EEE, dd MMM yyyy HH:mm:ss zzz, EEEE, dd-MMM-yy HH:mm:ss zzz, E
EE MMM d HH:mm:ss yyyy, EEE, dd-MMM-yyyy HH:mm:ss z, EEE, dd-MMM-yyyy HH-mm-ss z
, EEE, dd MMM yy HH:mm:ss z, EEE dd-MMM-yyyy HH:mm:ss z, EEE dd MMM yyyy HH:mm:s
s z, EEE dd-MMM-yyyy HH-mm-ss z, EEE dd-MMM-yy HH:mm:ss z, EEE dd MMM yy HH:mm:s
s z, EEE,dd-MMM-yy HH:mm:ss z, EEE,dd-MMM-yyyy HH:mm:ss z, EEE, dd-MM-yyyy HH:mm
:ss z]
2005/10/02 11:15:56:656 EDT [DEBUG] DefaultHttpParams - Set parameter http.conne
ction.timeout = 25000
2005/10/02 11:15:56:656 EDT [DEBUG] DefaultHttpParams - Set parameter http.proto
col.single-cookie-header = true
2005/10/02 11:15:56:656 EDT [DEBUG] DefaultHttpParams - Set parameter http.proto
col.cookie-policy = rfc2109
2005/10/02 11:15:56:734 EDT [DEBUG] HttpConnection - Open connection to orgmeta.
xmlsweb.com:3245
2005/10/02 11:15:56:750 EDT [DEBUG] header - >> "GET orgs.xml? HTTP/1.1[\r][\n]"
2005/10/02 11:15:56:765 EDT [DEBUG] HttpMethodBase - Adding Host request header
2005/10/02 11:15:56:781 EDT [DEBUG] header - >> "User-Agent: Jakarta Commons-Htt
pClient/3.0-rc3[\r][\n]"
2005/10/02 11:15:56:781 EDT [DEBUG] header - >> "Host: orgmeta.xmlsweb.com:3245[
\r][\n]"
2005/10/02 11:15:56:781 EDT [DEBUG] header - >> "[\r][\n]"
2005/10/02 11:15:58:250 EDT [DEBUG] header - << "HTTP/1.1 400 Bad Request[\r][\n
]"
2005/10/02 11:15:58:250 EDT [DEBUG] header - << "Server: Microsoft-IIS/5.0[\r][\
n]"
2005/10/02 11:15:58:250 EDT [DEBUG] header - << "Date: Sun, 02 Oct 2005 15:15:59
GMT[\r][\n]"
2005/10/02 11:15:58:250 EDT [DEBUG] header - << "Connection: close[\r][\n]"
2005/10/02 11:15:58:250 EDT [DEBUG] header - << "Content-Type: text/html[\r][\n]
"
2005/10/02 11:15:58:250 EDT [DEBUG] header - << "Content-Length: 87[\r][\n]"
2005/10/02 11:15:58:265 EDT [DEBUG] content - << "<html><head><title>Error</titl
e></head><body>The parameter is incorrect. </body></html>"
2005/10/02 11:15:58:265 EDT [DEBUG] HttpMethodBase - Should close connection in
response to directive: close
2005/10/02 11:15:58:265 EDT [DEBUG] HttpConnection - Releasing connection back t
o connection manager.
Exception in thread "main" java.io.IOException: Attempted read on closed stream.
at org.apache.commons.httpclient.AutoCloseInputStream.isReadAllowed(Auto
CloseInputStream.java:165)
at org.apache.commons.httpclient.AutoCloseInputStream.read(AutoCloseInpu
tStream.java:106)
at sun.nio.cs.StreamDecoder$CharsetSD.readBytes(Unknown Source)
at sun.nio.cs.StreamDecoder$CharsetSD.implRead(Unknown Source)
at sun.nio.cs.StreamDecoder.read(Unknown Source)
at java.io.InputStreamReader.read(Unknown Source)
at java.io.BufferedReader.fill(Unknown Source)
at java.io.BufferedReader.readLine(Unknown Source)
at java.io.BufferedReader.readLine(Unknown Source)
at retransform.idxloader.ParagonUtil.findImages(ParagonUtil.java:49)
at rex.IdxFileConverter.main(IdxFileConverter.java:296)
So, what's causing the invalid parameter? The only difference I can see is that the httpclient query puts a "?" at the end with no parameters. When I try it with or without a question mark in my web browser, I get exactly the same results. I'm not sure that's conclusive though, as the browser may be stripping it off if there's no parameters.
So, I guess, I'm trying to figure out what the next step is. Anyone know how to make httpclient not stick a ? at the end of a GET? Anyone have any other ideas?
Thanks!
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Re: 400 Bad Request
Posted by Oleg Kalnichevski <ol...@apache.org>.
On Sun, 2005-10-02 at 08:31 -0700, Thomas Hehl wrote:
> So, I guess, I'm trying to figure out what the next step is. Anyone know how to make httpclient not stick a ? at the end of a GET? Anyone have any other ideas?
>
HttpClient does not append a question mark to urls out of the blue. I
suspect this is what your code passes to the GetMethod constructor as a
parameter or somewhere in your code the query string of the GetMethod
instance is set to ""
Oleg
> Thanks!
>
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> To unsubscribe, e-mail: httpclient-user-unsubscribe@jakarta.apache.org
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>
>
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