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Posted to issues@commons.apache.org by "Alexander Schuetz (JIRA)" <ji...@apache.org> on 2012/06/13 13:17:42 UTC
[jira] [Comment Edited] (NET-470) DataConnection-Socket hangs on
InputStream.read()
[ https://issues.apache.org/jira/browse/NET-470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13294353#comment-13294353 ]
Alexander Schuetz edited comment on NET-470 at 6/13/12 11:15 AM:
-----------------------------------------------------------------
Here you are:
{color:blue}
{{220 PSFTPd. Secure FTP Server ready}}
{{Connected to ******** on 990}}
{{USER *******}}
{{331 Password required for *******}}
{{PASS *******}}
{{230 User ******* logged in}}
{{SYST}}
{{215 UNIX Type: L8}}
{{Remote system is UNIX Type: L8}}
{{PBSZ 0}}
{{200 PBSZ 0 successful}}
{{PROT P}}
{{200 Data connection set to: Private}}
{{TYPE I}}
{{200 TYPE set to BINARY}}
{{PASV}}
{{227 Entering passive mode (217,70,161,93,39,12)}}
{{LIST}}
{{150 Opening ASCII mode data connection}}
{color}
{color:red}
java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:150)
at java.net.SocketInputStream.read(SocketInputStream.java:121)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:283)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:325)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177)
at java.io.InputStreamReader.read(InputStreamReader.java:184)
at java.io.BufferedReader.fill(BufferedReader.java:154)
at java.io.BufferedReader.readLine(BufferedReader.java:317)
at java.io.BufferedReader.readLine(BufferedReader.java:382)
at org.apache.commons.net.ftp.FTPFileEntryParserImpl.readNextEntry(FTPFileEntryParserImpl.java:52)
at org.apache.commons.net.ftp.FTPListParseEngine.readStream(226 Directory send OK FTPListParseEngine.java:133)
at org.apache.commons.net.ftp.FTPListParseEngine.readServerList(FTPListParseEngine.java:102)
at org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:3103)
at org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:3072)
at org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2731)
at testapplication.ftp.FTPClientExample.main(FTPClientExample.java:335)
{color}
This was produced using Netbeans 7, JDK 1.7 and a slightly changed version of {http://www.google.de/url?sa=t&rct=j&q=ftpclientexample%20java&source=web&cd=1&ved=0CFIQFjAA&url=http%3A%2F%2Fcommons.apache.org%2Fnet%2Fexamples%2Fftp%2FFTPClientExample.java&ei=83LYT7iSH4TKsgaA_ejjDw&usg=AFQjCNHYEWShtZ-WVhvvFvmnjmsfWanevg&cad=rja]
I'll attach a diff with the modifications. Arguments are "-l -b -p SSL,true" and of course the login and server preferences.
I'll try to get more information about the server as well...
was (Author: fenvariel):
Here you are:
{color:blue}
{{220 PSFTPd. Secure FTP Server ready}}
{{Connected to ******** on 990}}
{{USER *******}}
{{331 Password required for *******}}
{{PASS *******}}
{{230 User ******* logged in}}
{{SYST}}
{{215 UNIX Type: L8}}
{{Remote system is UNIX Type: L8}}
{{PBSZ 0}}
{{200 PBSZ 0 successful}}
{{PROT P}}
{{200 Data connection set to: Private}}
{{TYPE I}}
{{200 TYPE set to BINARY}}
{{PASV}}
{{227 Entering passive mode (217,70,161,93,39,12)}}
{{LIST}}
{{150 Opening ASCII mode data connection}}
{color}
{color:red}
java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:150)
at java.net.SocketInputStream.read(SocketInputStream.java:121)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:283)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:325)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177)
at java.io.InputStreamReader.read(InputStreamReader.java:184)
at java.io.BufferedReader.fill(BufferedReader.java:154)
at java.io.BufferedReader.readLine(BufferedReader.java:317)
at java.io.BufferedReader.readLine(BufferedReader.java:382)
at org.apache.commons.net.ftp.FTPFileEntryParserImpl.readNextEntry(FTPFileEntryParserImpl.java:52)
at org.apache.commons.net.ftp.FTPListParseEngine.readStream(226 Directory send OK FTPListParseEngine.java:133)
at org.apache.commons.net.ftp.FTPListParseEngine.readServerList(FTPListParseEngine.java:102)
at org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:3103)
at org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:3072)
at org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2731)
at testapplication.ftp.FTPClientExample.main(FTPClientExample.java:335)
{color}
This was produced using Netbeans 7, JDK 1.7 and a slightly changed version of {http://www.google.de/url?sa=t&rct=j&q=ftpclientexample%20java&source=web&cd=1&ved=0CFIQFjAA&url=http%3A%2F%2Fcommons.apache.org%2Fnet%2Fexamples%2Fftp%2FFTPClientExample.java&ei=83LYT7iSH4TKsgaA_ejjDw&usg=AFQjCNHYEWShtZ-WVhvvFvmnjmsfWanevg&cad=rja]
I'll attach a diff with the modifications. Arguments are "-l -b -p SSL,true" and of course the login and server preferences.
> DataConnection-Socket hangs on InputStream.read()
> -------------------------------------------------
>
> Key: NET-470
> URL: https://issues.apache.org/jira/browse/NET-470
> Project: Commons Net
> Issue Type: Bug
> Components: FTP
> Affects Versions: 3.1
> Environment: Windows 7 (x86), Netbeans 7, JDK 1.6 and JDK 1.7
> Reporter: Alexander Schuetz
> Attachments: examplePatch.diff
>
>
> I'm using ftps (SSL/implicit) and passive mode. connect(), login() and cwd() commands work well.
> But if I have to open a data connection (for example for LIST) the socket is opened successfully using one of the desired "dataports". The underlying InputStream is created as well without any Exception.
> But then every attempt to read from the InputStream will eventually time out or hang forever (depending on the DataTimeout-value).
> If I use the FileZilla client, everything works successfully and fast. FileZilla issues the following commands:
> {color:blue}
> {{C: SYST}}
> {{A: 215 UNIX Type: L8}}
> {{C: FEAT}}
> {{A: 211-Extensions supported}}
> {{A: SIZE}}
> {{A: REST}}
> {{A: MDTM}}
> {{A: MFMT YYYYMMDDHHMMSS filename}}
> {{A: MDTM YYYYMMDDHHMMSS filename}}
> {{A: MDTM YYYYMMDDHHMMSS[+-TZ] filename}}
> {{A: XCRC filename}}
> {{A: XMD5 filename}}
> {{A: AUTH TLS}}
> {{A: AUTH SSL}}
> {{A: MODE Z}}
> {{A: PBSZ}}
> {{A: PROT}}
> {{A: 211 End of FEAT}}
> {{C: USER ********}}
> {{A: 331 Password required for ********}}
> {{C: PASS ********}}
> {{A: 230 User ******** logged in}}
> {{C: PBSZ 0}}
> {{A: 200 PBSZ 0 successful}}
> {{C: PROT P}}
> {{A: 200 Data connection set to: Private}}
> {{C: TYPE I}}
> {{A: 200 TYPE set to BINARY}}
> {{C: PASV}}
> {{A: 227 Entering passive mode (217,70,161,93,39,15)}}
> {{C: LIST}}
> {{A: 150 Opening ASCII mode data connection}}
> {{A: 226 Directory send OK}}
> {color}
> Issueing the commands "PBSZ 0" and "PROT P" before and calling enterLocalPassiveMode() and setFileType(FTP.BINARY_FILE_TYPE) will produce the same commandsequence (without SYST and FEAT), but with the error described above.
>
> On top of that: disconnect() will block forever, originating from socket.close() which is blocking. The only way to avoid this is calling logout() (even if login() wasn't issued). Then disconnect will return as expected.
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