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Archived Forum PostQuestion:
A customer of mine who uses my program is having problems to download files. Earlier I was able to fix issues he had by adding http-proxy support and very long connection, idle and read timeouts. He is now able to list the ftp directory contents, but downloading (GetFile) fails. Passive or Active mode doesn't seem to help.
When he uses WS_FTP pro he can download files. Any ideas appreciated.
Here is the sessionlog (I changed some hostnames and ip addresses):
220 Service ready for new user. . USER someuser 331 User name okay, need password for someuser. . PASS **** 230 User logged in, proceed. . TYPE I 200 Command TYPE okay. . PASV 227 Entering Passive Mode (81,80,106,65,27,88) . RETR pickup/1382520120629100517ALMERYS.zip 150 File status okay; about to open data connection. 426 Data connection error. . QUIT ====================================== Fin du balayage du répertoire FTP
and here is the LastErrorText
GetFile:
DllDate: Apr 20 2012
UnlockPrefix: WATCHDFTP
Username: VMADMCENTER1:a3804667
Architecture: Little Endian; 32-bit
Language: Visual C++ 9.0
ProgressMonitoring:
enabled: yes
heartbeatMs: 0
sendBufferSize: 65536
--ProgressMonitoring
AutoGetSizeForProgress: 0
localFilename: C:almeryspickup\1382520120629100517ALMERYS.zip
GetFileToOutput_1:
getFileToOutput2_1:
ModeZ: 0
BinaryMode: 1
Passive transfer mode
hostAddr: 22.22.222.22
DataConnect:
hostname: 22.22.222.22
port: 7000
HttpProxyConnect:
proxyHostname: proxy.some.host.fr
proxyPort: 8080
ConnectTimeoutMs_1: 600000
calling ConnectSocket2
IPV6 enabled connect with NO heartbeat.
connectingTo: proxy.some.host.fr
dnsCacheLookup: proxy.some.host.fr
dnsCacheHit: 221.11.11.11
GetHostByNameHB_ipv4: Elapsed time: 0 millisec
myIP_1: 126.126.21.144
myPort_1: 1748
connect successful (1)
ConnectRequest: CONNECT 22.22.222.22:7000 HTTP/1.1
Connection: Keep-Alive
Proxy-Connection: Keep-Alive
Host: 22.22.222.22
ConnectResponseHeader: HTTP/1.1 200 Connection established
firstLine: HTTP/1.1 200 Connection established
--HttpProxyConnect
--DataConnect
PassiveDataConnectionSetupTimeMs: Elapsed time: 46 millisec
RetrFilename: [pickup/1382520120629100517ALMERYS.zip]
RETR_reply: 150 File status okay; about to open data connection.
DownloadRate: 0
TotalNumBytesReceived: 0
ReceiveTimeMs: Elapsed time: 301656 millisec
Data read fatal error.
statusCode3: 426
finalReply: 426 Data connection error.
RETR failed after reading data.
Filename: pickup/1382520120629100517ALMERYS.zip
FtpResponse22: 426 Data connection error.
--getFileToOutput2_1
--GetFileToOutput_1
MDTM is not supported by this FTP server.
Cannot maintain the last-modified date/time automatically.
TotalTimeMs: Elapsed time: 301734 millisec
Failed.
--GetFile
--ChilkatLog
Gert,
If an HTTP proxy is used with FTP, then the only valid choice is to use Passive mode. Therefore, you wouldn't ever want to try Active (non-passive) mode.
Check to see if these new builds solve the problem:
32-bit: http://www.chilkatsoft.com/preRelease/chilkat-9.3.1-x86-vc9.zip
64-bit: http://www.chilkatsoft.com/preRelease/chilkat-9.3.1-x86_x64-vc9.zip
Thanks, we will give it a try and let you know.
It looks like the error is exactly the same. Any other ideas?
** start download pickup/1382520120629100517ALMERYS.zip to C:\almerys\pickup\\1382520120629100517ALMERYS.zip
** download fails!ChilkatLog:
GetFile:
DllDate: Jul 6 2012
UnlockPrefix: WATCHDFTP
Username: someuser
Architecture: Little Endian; 32-bit
Language: Visual C++ 9.0
ProgressMonitoring:
enabled: yes
heartbeatMs: 0
sendBufferSize: 65536
--ProgressMonitoring
AutoGetSizeForProgress: 0
localFilename: C:\almerys\pickup\\1382520120629100517ALMERYS.zip
GetFileToOutput_1:
getFileToOutput2_1:
ModeZ: 0
BinaryMode: 1
Passive transfer mode
hostAddr: 22.22.222.22
DataConnect:
hostname: 22.22.222.22
port: 7000
HttpProxyConnect:
proxyHostname: proxy.some.host.fr
proxyPort: 8080
ConnectTimeoutMs_1: 600000
calling ConnectSocket2
IPV6 enabled connect with NO heartbeat.
connectingTo: proxy.some.host.fr
dnsCacheLookup: proxy.some.host.fr
dnsCacheHit: 221.11.11.11
GetHostByNameHB_ipv4: Elapsed time: 0 millisec
myIP_1: 126.126.21.144
myPort_1: 4852
connect successful (1)
ConnectRequest: CONNECT 22.22.222.22:7000 HTTP/1.1
Connection: Keep-Alive
Proxy-Connection: Keep-Alive
Host: 22.22.222.22
ConnectResponseHeader: HTTP/1.1 200 Connection established
firstLine: HTTP/1.1 200 Connection established
--HttpProxyConnect
--DataConnect
PassiveDataConnectionSetupTimeMs: Elapsed time: 47 millisec
RetrFilename: [pickup/1382520120629100517ALMERYS.zip]
RETR_reply: 150 File status okay; about to open data connection.
DownloadRate: 0
TotalNumBytesReceived: 0
ReceiveTimeMs: Elapsed time: 302094 millisec
Data read fatal error.
statusCode3: 426
finalReply: 426 Data connection error.
RETR failed after reading data.
retrRemotePath5: pickup/1382520120629100517ALMERYS.zip
FtpResponse22: 426 Data connection error.
--getFileToOutput2_1
--GetFileToOutput_1
MDTM is not supported by this FTP server.
Cannot maintain the last-modified date/time automatically.
TotalTimeMs: Elapsed time: 302188 millisec
Failed.
--GetFile
--ChilkatLog
mmmm, he now tried in his production environment and it seems to work (FTPS with http proxy).
Perhaps still a few issues I might contact you later about.