[R] ftp connections for uploading files

[Prof Brian Ripley]

On Fri, 9 Jan 2009, Duncan Temple Lang wrote:

>
> Hi Thomas
>
> Rather than getting into the details of libcurl options
> which are quite general and very flexible, I thought
> it was easier to write an explicit ftpUpload() function
> that takes care of the details.
>
> You need a new version of the package (as it contains the function and
> a small change to the C code), but I don't have the time to build the Windows 
> version for the next few days.

One is on CRANextras now.

>
> The function can be used as
>
>  ftpUpload("path/to/file", "ftp://server/path/to/target/file",
>             userpwd = "login:password")
>
> and you can deal with contents in memory too rather than from a file.
>
>
> HTH,
>   D.
>
> Thomas Loridan wrote:
>> Thanks a lot Duncan
>> 
>> Sorry to insist with my questions but I am very lost with these Rcurl
>> commands...
>> could you point out the few ones I need to set up an ftp connection
>> and just upload a file ?
>> 
>> Greatly appreciated
>> 
>> Thomas
>> 
>> 2009/1/8 Duncan Temple Lang <duncan at wald.ucdavis.edu>:
>>> 
>>> Prof Brian Ripley wrote:
>>>> Try system() with curl or a decent ftp client (I don't see that package
>>>> RCurl covers this, but it might despite its description only mentioning
>>>> HTTP).
>>> It does support FTP, and all of the protocols that are supported in
>>> the installed libcurl, so it depends the configuration options for libcurl
>>> itself.
>>> 
>>> The protocols it handles can be found via the curlVersion() function, e.g.
>>> 
>>>> curlVersion()
>>> $age
>>> [1] 3
>>> 
>>> $version
>>> [1] "7.16.3"
>>> 
>>> $vesion_num
>>> [1] 462851
>>> 
>>> $host
>>> [1] "powerpc-apple-darwin9.0"
>>> 
>>> $features
>>>        ipv6          ssl         libz         ntlm gssnegotiate largefile
>>>           1            4            8           16           32   512
>>> 
>>> $ssl_version
>>> [1] " OpenSSL/0.9.7l"
>>> 
>>> $ssl_version_num
>>> [1] 0
>>> 
>>> $libz_version
>>> [1] "1.2.3"
>>> 
>>> $protocols
>>> [1] "tftp"   "ftp"    "telnet" "dict"   "ldap"   "http"   "file"   "https"
>>> [9] "ftps"
>>> 
>>> $ares
>>> [1] ""
>>> 
>>> $ares_num
>>> [1] 0
>>> 
>>> $libidn
>>> [1] ""
>>> 
>>> 
>>> 
>>> sessionInfo()
>>> R version 2.9.0 Under development (unstable) (2008-09-27 r46576)
>>> i386-apple-darwin9.5.0
>>> 
>>> locale:
>>> C
>>> 
>>> attached base packages:
>>> [1] stats     graphics  grDevices datasets  utils     methods   base
>>> 
>>> other attached packages:
>>> [1] ROOXML_0.1-0        Rcompression_0.4-0  RGoogleDocs_0.2-0
>>> [4] SVGAnnotation_0.1-0 lattice_0.17-15     RCurl_0.92-0
>>> [7] XML_1.99-0          RTools_0.1-0        bitops_1.0-4
>>> 
>>> loaded via a namespace (and not attached):
>>> [1] grid_2.9.0
>>> 
>>> 
>>>
>>>>  From 'man curl'
>>>>
>>>>   curl offers a busload of useful tricks like proxy support, user authen-
>>>>   tication,  ftp upload, HTTP post, SSL connections, cookies, file trans-
>>>>   fer resume and more. As you will see below, the amount of features will
>>>>   make your head spin!
>>>> 
>>>> Ftp protocols (and there are more than one) are fiendishly complicated,
>>>> especially if proxies are involved.
>>>> 
>>>> BTW, this is yet another case where knowing your OS would have helped 
>>>> give
>>>> a more precise answer. See the posting guide.
>>>> 
>>>> On Thu, 8 Jan 2009, Thomas Loridan wrote:
>>>> 
>>>>> Hi all,
>>>>> 
>>>>> I would like to upload some plots I create wth R via ftp or something
>>>>> similar but I don t really understand which command/syntax I should
>>>>> use:
>>>>> should I go for  make.socket + write.socket or try and create
>>>>> environment variables like frp_proxy_user and then ftp my files? how?
>>>>> 
>>>>> many thanks for your help
>>>>> 
>>>>> Thomas
>>>>> 
>>>>> --
>>>>> Thomas Loridan
>>>>> King's College email: thomas.loridan at kcl.ac.uk
>>>>> webpage:http://geography.kcl.ac.uk/micromet/tloridan/index.htm
>>>>> 
>>>>> ______________________________________________
>>>>> R-help at r-project.org mailing list
>>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>>> PLEASE do read the posting guide
>>>>> http://www.R-project.org/posting-guide.html
>>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>> 
>> 
>> 
>> 
>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595