Hi, Yaroslav, I'll let Dan handle the first question (but reserve the right to chime in afterwards).
On the second question: yes, it's a little baroque, but I've added code to pyxnat to do just that. Check out the hcp-db branch of https://github.com/Human-Connectome-Project/pyxnat , and in particular https://github.com/Human-Connectome-Project/pyxnat/blob/hcp-db/pyxnat/core/packages.py . Note that there are two steps to this dance: first you need to ask XNAT for authorization to download specified files, and then you hand the returned magic cookie to the Aspera server (via ascp) to start the download. (Python code isn't exactly what you asked for, but I'll guess you're more than sufficiently fluent in Python to figure out what I did, and I'm happy to answer any questions.) There's a tutorial that covers using pyxnat against ConnectomeDB (including downloading packages) here: https://wiki.humanconnectome.org/display/DataUse/Exploring+ConnectomeDB+with+Python , and a script that uses pyxnat+ascp to download packages here: https://wiki.humanconnectome.org/display/DataUse/Downloading+data+for+10+%28or+40%29+unrelated+subjects - Kevin On Aug 20, 2013, at 10:11 AM, Yaroslav Halchenko wrote: > Dear HCP Gurus, > > Aspera client seems to perform really well to utilize the available > bandwidth, but it is a closed source proprietary software (although > happily using open source libraries such as Qt, which it can do). > I wonder if there is any other alternative method to access data, > possibly through a less efficient but open protocol (http/rsync/...)? > > Is it possible to use aspera's cmdline client (ascp) directly > from the command line without requiring it being spawn up by > asperaconnect.bin web-browser plugin? if "yes" -- could someone point > me to any HOWTO/etc outlining the procedure for authentication using HCP > credentials? > > Thank you in advance for the answers! > -- > Yaroslav O. Halchenko, Ph.D. > http://neuro.debian.net http://www.pymvpa.org http://www.fail2ban.org > Senior Research Associate, Psychological and Brain Sciences Dept. > Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755 > Phone: +1 (603) 646-9834 Fax: +1 (603) 646-1419 > WWW: http://www.linkedin.com/in/yarik > > _______________________________________________ > HCP-Users mailing list > HCP-Users@humanconnectome.org > http://lists.humanconnectome.org/mailman/listinfo/hcp-users ________________________________ The material in this message is private and may contain Protected Healthcare Information (PHI). If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail. _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users
