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#
#
# Nimrod's Runtime Library
# (c) Copyright 2010 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
## This module contains simple high-level procedures for dealing with the
## web. Use cases:
##
## * requesting URLs
## * sending and retrieving emails
## * sending and retrieving files from an FTP server
##
## Currently only requesting URLs is implemented. The implementation depends
## on the libcurl library!
##
## **Deprecated since version 0.8.8:** Use the ``httpclient`` module instead.
##
{.deprecated.}
import libcurl, streams
proc curlwrapperWrite(p: pointer, size, nmemb: int,
data: pointer): int {.cdecl.} =
var stream = cast[PStream](data)
stream.writeData(stream, p, size*nmemb)
return size*nmemb
proc URLretrieveStream*(url: string): PStream =
## retrieves the given `url` and returns a stream which one can read from to
## obtain the contents. Returns nil if an error occurs.
result = newStringStream()
var hCurl = easy_init()
if hCurl == nil: return nil
if easy_setopt(hCurl, OPT_URL, url) != E_OK: return nil
if easy_setopt(hCurl, OPT_WRITEFUNCTION,
curlwrapperWrite) != E_OK: return nil
if easy_setopt(hCurl, OPT_WRITEDATA, result) != E_OK: return nil
if easy_perform(hCurl) != E_OK: return nil
easy_cleanup(hCurl)
proc URLretrieveString*(url: string): string =
## retrieves the given `url` and returns the contents. Returns nil if an
## error occurs.
var stream = newStringStream()
var hCurl = easy_init()
if hCurl == nil: return nil
if easy_setopt(hCurl, OPT_URL, url) != E_OK: return nil
if easy_setopt(hCurl, OPT_WRITEFUNCTION,
curlwrapperWrite) != E_OK: return nil
if easy_setopt(hCurl, OPT_WRITEDATA, stream) != E_OK: return nil
if easy_perform(hCurl) != E_OK: return nil
easy_cleanup(hCurl)
result = stream.data
when isMainModule:
echo URLretrieveString("http://nimrod.ethexor.com/")
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