https://issues.apache.org/bugzilla/show_bug.cgi?id=54947
Bug ID: 54947
Summary: Http11NioProtocol generates HTTP 505 responses on
valid requests if request is split across multiple
packets
Product: Tomcat 6
Version: 6.0.36
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Connectors
Assignee: [email protected]
Reporter: [email protected]
Classification: Unclassified
If an HTTP request is broken up across multiple packets *and* the first packet
contains a GET request up to "\r" AND the "\n" terminating the first line of
the request is included in the next packet Tomcat incorrectly throws an HTTP
"505 Version Not Supported" response. This is with the Http11NioProtocol
connector only - the default HTTP/1.1 connector does not exhibit this problem.
An example request:
Packet 1: GET / HTTP/1.1\r
Packet 2: \nHost: localhost\r\n
Packet 3: Connection: Close\r\n\r\n
Response:
HTTP/1.1 505 HTTP Version Not Supported
Server: Apache-Coyote/1.1
Date: Thu, 09 May 2013 20:23:58 GMT
Connection: close
The following Python program reproduces the problem for me in both Tomcat
6.0.37 and Tomcat 7.0.39:
"""
#!/usr/bin/python
import socket
import time
s = socket.socket()
s.connect(("localhost",8080))
s.sendall("GET / HTTP/1.1\r")
time.sleep(1.5) # make sure the above goes out in its own packet
s.sendall("\nHost: localhost\r\n")
s.sendall("Connection: close\r\n\r\n")
print s.makefile().read()
"""
Moving the "\n" to from the second sendall to the end of the first sendall
causes Tomcat to respond correctly.
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