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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 21216] New: - httpclient follows 302 with empty link up to max redirects
Date Tue, 01 Jul 2003 10:21:34 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21216

httpclient follows 302 with empty link up to max redirects

           Summary: httpclient follows 302 with empty link up to max
                    redirects
           Product: Commons
           Version: Nightly Builds
          Platform: PC
        OS/Version: Windows NT/2K
            Status: NEW
          Severity: Minor
          Priority: Other
         Component: HttpClient
        AssignedTo: commons-httpclient-dev@jakarta.apache.org
        ReportedBy: michael@advweb.com


I noticed that if the server returns a 302 without a URL in the link, the 
HttpClient follows the empty URL up to the maximum times (100 by default).  
Instead it should check and if the URL is an empty string it shouldn't try to 
follow the redirect.

12:18:17,430 [U:          ] [main                ] ERROR 
HttpMethodBase               - Narrowly avoided an infinite loop in execute
12:18:17,430 [U:          ] [main                ] DEBUG 
URLMonitor                   - Method.execute attempt 1 failed 
http://www.stagecoach.co.uk: 
org.apache.commons.httpclient.HttpRecoverableException: Maximum redirects (100) 
exceeded
12:18:17,430 [U:          ] [main                ] DEBUG 
URLMonitor                   - HttpRecoverableException 
(http://www.stagecoach.co.uk) : 
org.apache.commons.httpclient.HttpRecoverableException: Maximum redirects (100) 
exceeded
	at org.apache.commons.httpclient.HttpMethodBase.execute
(HttpMethodBase.java:1065)
	at com.verideon.veriguard.domain.URLMonitor.monitor(URLMonitor.java:189)
	at com.verideon.veriguard.domain.URLMonitor.monitor(URLMonitor.java:101)
	at com.verideon.veriguard.domain.TestURLMonitor.getPage
(TestURLMonitor.java:58)
	at com.verideon.veriguard.domain.TestURLMonitor.monitorURL
(TestURLMonitor.java:47)
	at com.verideon.veriguard.domain.TestURLMonitor.testMonitorURLStageCoach
(TestURLMonitor.java:138)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:324)
	at junit.framework.TestCase.runTest(TestCase.java:154)
	at junit.framework.TestCase.runBare(TestCase.java:127)
	at junit.framework.TestResult$1.protect(TestResult.java:106)
	at junit.framework.TestResult.runProtected(TestResult.java:124)
	at junit.framework.TestResult.run(TestResult.java:109)
	at junit.framework.TestCase.run(TestCase.java:118)
	at junit.framework.TestSuite.runTest(TestSuite.java:208)
	at junit.framework.TestSuite.run(TestSuite.java:203)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests
(RemoteTestRunner.java:392)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run
(RemoteTestRunner.java:276)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main
(RemoteTestRunner.java:167)

Result with telnet:

GET /
HTTP/1.1 302 Object moved
Server: Microsoft-IIS/5.0
Date: Tue, 01 Jul 2003 10:05:58 GMT
X-Powered-By: ASP.NET
Location: http://www.stagecoach.co.uk
Connection: Keep-Alive
Content-Length: 121
Content-Type: text/html
Set-Cookie: ASPSESSIONIDCQCSRAAB=IFJJLEADOPDDNNGHLPFBIIIE; path=/
Cache-control: private

<head><title>Object moved</title></head>
<body><h1>Object Moved</h1>This object may be found <a HREF="">here</a>.</body>
Connection closed by foreign host.

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