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lofar-astron / RMextract

extract TEC, vTEC, Earthmagnetic field and Rotation Measures from GPS and WMM data for radio interferometry observations
GNU General Public License v3.0
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RMextract not downloading through ftp proxy #24

Closed amisk closed 5 years ago

amisk commented 5 years ago

Hi,

I have the issue that in our network you can not download stuff via ftp without using a proxyserver.

In order to fix that, I added a bit of code to getIONEX.py and getRM.py. getIONEx.py got a second function as an alternative to _get_IONEX_file. This uses urllib2 instead of ftplib, because ftplib does not provide any options for proxy servers.

And in getRM I check if the prefactor pipeline uses a proxy server. If yes, the get_urllib_IONEXfile function is called, otherwise _get_IONEX_file is called.

It also accepts usernames and passwords for the server, although I can not test that since our proxy does not need it.

For this, the PySocks package has to be installed on the machine.

Can I commit it here? Or send it by email? This will probably only affect one or two people, but could still be good to have that option.

maaijke commented 5 years ago

THanks for solving this. Can you do a pull request?

gheald commented 5 years ago

I think that this addition has broken getRM.py (at least) in the case where a proxy server is not required - I now get an error: local variable 'use_proxy' referenced before assignment This seems to originate on line 161: https://github.com/lofar-astron/RMextract/blob/530993fbee1fb2e5c8aa94930d144d6aec30f0c0/RMextract/getRM.py#L161 Indeed there is no place where use_proxy can be set to False if proxy_server is never caught on line 84.

gheald commented 5 years ago

So, to be more specific, I suggest adding: use_proxy = False after line 53 in getRM.py

amisk commented 5 years ago

Yes, you are right. I was sure I had it in when I tested it without a proxy. Pull request is made.

maaijke commented 5 years ago

I submitted a fix