#!/usr/bin/env python
# wikiadd --- Add a comment to a wiki page on an Oddmuse wiki
# 
# Copyright (C)  2004  Jorgen Schaefer <forcer@forcix.cx>
# Copyright (C)  2004  Alex Schroeder <alex@emacswiki.org>
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import httplib, urllib, re, urlparse, sys, getopt
from time import time

def main():
    """The main method of the wikiput script."""
    summary="*"
    recent_edit="no"
    try:
        opts, args = getopt.getopt(sys.argv[1:],
                                   "ht:s:m:",
                                   ["help", "summary=", "minor-edit="])
    except getopt.GetoptError:
        usage(sys.stderr)
        sys.exit(1)
    if len(args) != 1:
        usage(sys.stderr)
        sys.exit(1)
    for opt, arg in opts:
        if opt in ("-h", "--help"):
            usage(sys.stdout)
        if opt in ("-s", "--summary"):
            summary = arg
        if opt in ("-m", "--minor-edit"):
            recent_edit="yes"
    text = sys.stdin.read()
    wikiput(args[0], text, summary=summary, recent_edit=recent_edit)

def usage(out):
    """Display the usage information for this script.

    Options:
    out -- The file descriptor where to write the info.
    """
    out.write("Usage: wikiadd [OPTIONS] wikipage\n"
              "Post the data on stdin on the wikipage described by wikipage\n"
	      "as a comment.\n"
              "\n"
              "Options:\n"
              " -h --help         Display this help\n"
              " -s --summary=S    The summary line.\n"
              " -m --minor-edit=B  Whether this is a minor edit.\n")

def wikiput(where, text,
            summary="*", recent_edit="no"):
    """Submit some text to a wiki page.

    Keyword arguments:
    where       -- A description of the wiki location
    text        -- The text to submit
    summary     -- The summary line to use (default *)
    recent_edit -- Wether this is a minor edit (default no)
    """
    (host, path, title) = parse_wiki_location(where)
    params = urllib.urlencode({'title': title,
                               'aftertext': text,
                               'summary': summary,
                               'recent_edit': recent_edit})
    headers = {'Content-Type': "application/x-www-form-urlencoded"}
    conn = httplib.HTTPConnection(host)
    conn.request("POST", path, params, headers)
    response = conn.getresponse()
    data = response.read()
    conn.close()
    if response.status != 302:
        raise RuntimeError, "We weren't redirected - something went wrong!"

def parse_wiki_location(where):
    """Return a tuple of host, path and page name for the wiki page
    WHERE.
    """
    (scheme, host, path, params, query, fragment) = urlparse.urlparse(where)
    return (host, path+params, query)

if __name__ == "__main__":
    main()