s-u/fastrweb

Fast Interactive Framework for Web Scripting Using R

fastrweb's Issues

systemd-startup-file

It would be great to have a systemd-startup-definition file...

Does anyone already created one for his/her use and can share it?

(I'm currently upgrading a FastRWeb installation - and I don't want to emulate a rc.local-file on the new systemd-based Debian ;-) )

Request Headers missing

Hello Simon/,

I am using your framework to develop an analytics platform using R. I created some web apis using concepts laid down by FastRWeb, however, in order to do authentication I need to parse the request headers and verify the tokens. I noticed that in code headers are being parsed, but they are being set to expose only certain parameters like
uri=url, method='GET', c.type='', c.length=-1, body=NULL, client.ip='0.0.0.0', query.string='', raw.cookies=''" etc.

headers are being parsed from line 67 to 78.

Would it be possible to include all the headers so that the framework can be used for authentication?

Or else I need some help in understanding how I can read custom headers from the request.

Kind regards,
Satya

Use additional headers

As mistakenly requested in the repository Rserve (s-u/Rserve#177), I would like to correctly tip in my feature request in this repository.
It would be nice to have more headers or header information in the request object, like Authorization: Bearer. Currently there a just a few available. It should be possible to add more headers, if given in the incoming request.

WebResult HTTP Status Code

I was wondering, if there is a way to also set the HTTP status code for a WebResult (like headers). I couldn't find anything in the docs, but it would be nice, if this was possible, since a 200 is not always suitable.

echoed GET data comes back corrupted

Hello,
When I POST a bunch of data to a simple FastRWeb script that echoes it back, it sometimes comes back slightly altered, depending on how I did the POST.

Example output:

$ diff cmdline.txt rcurl.txt 
178c178
< ensembl/release-74/fasta/erinaceus_europaeus/dna/Erinaceus_europaeus.HEDGEHOG.74.dna.toplevel.fa.rz

---
> ensembl/release-74/fasta/erinaceus_europaeus/dna/EErinaceus_europaeus.HEDGEHOG.74.dna.toplevel.fa.rz
350c350
< ensembl/release-74/fasta/pelodiscus_sinensis/dna/Pelodiscus_sinensis.PelSin_1.0.74.dna_rm.toplevel.fa.rz

---
> ensembl/release-74/fasta/pelodiscus_sinensis/dna/Pelodiscus_sinensis.PelSin_11.0.74.dna_rm.toplevel.fa.rz

See how Erinaceus becomes EErinaceus and 1.0 becomes 11.0.

Here's the simple FastRWeb script (save this as test.R in your web.R directory):

run <- function(...) {
  params <- list(...)
  out(params$RDataPath)
}

I compared the results with an equivalent python CGI script:

import cgi
print "Content-Type: text/html"
print   
form = cgi.FieldStorage()
print(form["RDataPath"].value)

and the problem does not occur with python so it seems to be happening in FastRWeb.

How to reproduce:

Download these files:
https://s3.amazonaws.com/fastrweb-problem/paths.txt
https://s3.amazonaws.com/fastrweb-problem/paths2.txt

They are identical except paths2.txt has "RDataPath=" at the beginning so it's suitable for POSTing from the curl command line.

1: POSTing from the command line:

curl -X POST --data @paths2.txt http://localhost/cgi-bin/R/test.R > cmdline.txt

2: POSTing from RCurl:

library(RCurl)
pathStr <- readLines("paths.txt")
res <- postForm("http://localhost/cgi-bin/test.cgi", RDataPath=pathStr)
cat(res, file="rcurl.txt")

3: evaluate results:

edit both cmdline.txt and rcurl.txt, replacing all spaces with newlines.
Then diff them:

diff cmdline.txt rcurl.txt

You should see something like the diff output at the beginning of this email.
It seems to corrupt the data in slightly different ways each time.

I hope you can fix this. It isn't clear to me how to work around it because I can't predict where the corruption will occur. Unfortunately using command-line curl is not a good workaround since I need to POST from a Bioconductor package which may be running on systems (e.g. windows) where command-line curl is not available. I'm not an RCurl expert but maybe there's a way to make my RCurl post look more like the command-line curl post and thereby not confuse FastRWeb so much?

Thanks!
Dan

BTW, the bugzilla link on http://rforge.net/ is broken, it points to http://rforge.net/bugzilla/ which is not found.

@mtmorgan
@mrjc42

How do you install additional packages?

Suppose I need third party packages in my scripts, how can I install the in FastRWeb?

Example application

Hi,
Is there any tutorial on how to build a web app with this package?
Thanks,

Status Header is always 200 OK when running RServe standalone

Hello Simon,

I noticed that my response headers are not working properly anymore for Statuses. When I was running with CGI enabled, then I had an option to set Status. I am trying out the apis in Advanced rest client. A small screensot of script not found error is attached.

Response Raw putput from Fiddler.

HTTP/1.1 200 OK
Content-type: text/html
Status: 404 Script not found
Content-length: 26

Script /api111.R not found

Kind regards,
Satya.

match media type without parameters when decoding parameters

When I post with a number of parameters in the body, info.R shows no parameters. It shows that the contente type is:

$ c.type      : chr "application/x-www-form-urlencoded; charset=UTF-8"

meanwhile, the code doesn't handle media type parameters; it just does an exact string match:

    if (request$c.type == 'application/x-www-form-urlencoded' && is.raw(request$body)) {