Question

I love RGoogleDocs and use it a lot. However, I don t like entering my password all the time. Obviously I could just type the password into the R script and would never have to enter it again. But thats not viable since it means that my password would be left unencrypted on my harddrive. Furthermore I share my scripts with colleagues.

To get around the problem I came up with this.

if(exists("ps")){
  print("got password, keep going")
} else {
  ps <-readline(prompt="get the password in ")
}

options(RCurlOptions = list(
  capath = system.file("CurlSSL", "cacert.pem", 
  package = "RCurl"), ssl.verifypeer = FALSE)
)

sheets.con = getGoogleDocsConnection(
  getGoogleAuth("notreal@gmail.com", ps, service ="wise")) 

#WARNING: this would prevent curl from detecting a  man in the middle  attack
ts2=getWorksheets("hpv type",sheets.con)

I love using RStudio. I feel uncomfortable that it is displaying my password for any colleague in my office at the time to see. I used a fake password but look at the image. my password would be in plain view for all to see in RStudio . Furthermore, if I saved a workspace my password would be saved with it and I am afraid that I would be giving it to someone else if, a few months later, when I had long forgotten about what was in it, I sent my .RData file to a colleague.

I read something general about passwords in R in an earlier post. It did not give me enough information to be able to conceal my password when using RGoogleDocs.

Answer 1

My approach is to set the login-name & password in the R options list within the R startup file .Rprofile. Then my code gets the value with getOption() and then the value is never visible or stored in a top-level variable in globalenv(). (It could be save if one does post-mortem debugging via dump.frames).

It is vital that the .Rprofile cannot be read by anybody other than you.

So

options(GoogleDocsPassword = c(login =  password ))

in the .Rprofile and then

auth = getGoogleAuth()

just works as the default value for the first parameter is to look for the GoogleDocsPassword option.

D.

Answer 2

I had the same problem, and no real solution. The workaround I use is, I create a google account just for this purpose, with a password that I do not care about. I then share the documents that I want R to access with that account.

But if someone has an answer to the initial question I am interested as well.

Answer 3

Seems like uou could store the password in your options and the instead of "ps" directly use "getOption". LIkely there are better solutions though.

Answer 4

You could store the password in a file on you computer, encoded and all and call it with somthing like

getPassword <- function(file = location of password file){unencode(readLines(file))}

set this in your .Rprofile and use in the code

getPassword().

This doesn t store your password in any R files and you can build in checks in the file.

Answer 5

If you really don t want to store it anywhere, then one solution to this is not to use a variable for the password, maybe even for the google account address! Building on the linked answer, why not try

library(tcltk)
library(RGoogleDocs)

getHiddenText <- function(label = "Enter text:", symbol = "*", defaultText = ""){  
    wnd <- tktoplevel()
    entryVar <- tclVar(defaultText)  
    tkgrid(tklabel(wnd, text = label))
    #Entry box
    tkgrid(entryBox <- tkentry(wnd, textvariable = entryVar, show = symbol))
    #Hitting return will also submit text
    tkbind(entryBox, "<Return>", function() tkdestroy(wnd))
    #OK button
    tkgrid(tkbutton(wnd, text="OK", command=function() tkdestroy(wnd)))
    #Wait for user to submit  
    tkwait.window(wnd)
    return(tclvalue(entryVar))
}  

repeat {
    con <- try(getGoogleDocsConnection(getGoogleAuth(
        getHiddenText(
            label = "Enter google account:",
            symbol = "", # or set to "*" to obscure email entry
            defaultText = "@gmail.com"), # a little timesaver
        getHiddenText(
            label = "Enter password:",
            symbol = "*",
            defaultText = ""),
        service = "wise")))
    if (inherits(con, "try-error")) {
        userResponse <- tkmessageBox(
            title = "Error",
            message = "Couldn t connect to Google Docs. Try again?",
            icon = "error", type = "yesno")
        if (tclvalue(userResponse) == "no") {
            stop("Unable to connect to Google Docs, user cancelled.")
        }        
    } else { # connection successfully authenticated
        break() # so escape the repeat loop
    }
}

Answer 6

For things like this I share the google doc with a made up email address, create a google account and then use it for sharing and authorization. Thus, seperating my personal login details from what s necessasry for the script to run.

Answer 7

what about 2 step authentication with application specific password ? you can use the application specific password without revealing your real one. and you can revoke it if you want !

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