#!/usr/bin/env python
# wikiupload --- Put a wiki page on an Oddmuse wiki
# 
# Copyright (C)  2004  Jorgen Schaefer <forcer@forcix.cx>
# Copyright (C)  2005  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 mimetypes, httplib, urllib, re, urlparse, sys, getopt
from time import time

def main():
    summary="upload"
    username=""
    password=""
    type=""
    recent_edit="off"
    try:
        opts, args = getopt.getopt(sys.argv[1:],
                                   "ht:s:u:p:m:",
                                   ["help", "summary=", "user=", "password=", "type=", "minor-edit="])
    except getopt.GetoptError:
        usage(sys.stderr)
        sys.exit(1)
    if len(args) != 2:
        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 ("-u", "--user"):
            username = arg
        if opt in ("-p", "--password"):
            password = arg
        if opt in ("-t", "--type"):
            type = arg
        if opt in ("-m", "--minor-edit"):
            recent_edit="on"
    wikiput(args[1], args[0], summary=summary, username=username, password=password,
	    type=type, 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: wikiupload [OPTIONS] file wikipage\n"
              "Post the data in the file onto the wikipage described by wikipage.\n"
              "\n"
	      "Example: wikiupload foaf.rdf http://your.domain.here/cgi-bin/wiki.pl/FOAF\n"
              "\n"
              "Options:\n"
              " -h --help          Display this help\n"
              " -s --summary=S     The summary line (default: upload)\n"
	      " -u --user=U        The username to use (default: none)\n"
	      " -p --password=P    The password to use (default: none)\n"
	      " -t --type=T        The MIME type to use (default: guessed)\n"
              " -m --minor-edit=B  Whether this is a minor edit (default: no)\n")

def wikiput(where, filename,
            summary="upload", username="", password="", type="", recent_edit="no"):
    (host, path, title) = parse_wiki_location(where)
    content = open(filename, "rb").read()
    files = [['file', filename, content]]
    params = [[ 'title', title ],
              [ 'summary', summary ],
              [ 'username', username ],
              [ 'pwd', password ],
              [ 'question', "1" ],
              [ 'recent_edit', recent_edit ]]
    (content_type, body) = encode_multipart_formdata(params, type, files);
    headers = {'Content-Type': content_type}
    conn = httplib.HTTPConnection(host)
    conn.request("POST", path, body, headers)
    response = conn.getresponse()
    data = response.read()
    conn.close()
    if response.status != 302:
        print "Uploading", filename, get_content_type(filename, type)
        print response.status, response.reason
        print response.read()
	if response.status == 415:
	    print "Check your MIME types in one of these files:"
	    print mimetypes.knownfiles
	sys.exit(1)

def encode_multipart_formdata(fields, type, files):
    """
    fields is a sequence of (name, value) elements for regular form fields.
    files is a sequence of (name, filename, value) elements for data to be uploaded as files.
    Return (content_type, body) ready for httplib.HTTP instance
    """
    BOUNDARY = '----------ThIs_Is_tHe_bouNdaRY_$'
    CRLF = '\r\n'
    L = []
    for (key, value) in fields:
        L.append('--' + BOUNDARY)
        L.append('Content-Disposition: form-data; name="%s"' % key)
        L.append('')
        L.append(value)
    for (key, filename, value) in files:
        L.append('--' + BOUNDARY)
        L.append('Content-Disposition: form-data; name="%s"; filename="%s"' % (key, filename))
        L.append('Content-Type: %s' % get_content_type(filename, type))
        L.append('')
        L.append(value)
    L.append('--' + BOUNDARY + '--')
    L.append('')
    body = CRLF.join(L)
    content_type = 'multipart/form-data; boundary=%s' % BOUNDARY
    return content_type, body

def get_content_type(filename, type):
    return type or mimetypes.guess_type(filename)[0] or 'application/octet-stream'

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)
    if not query:
        list = path.split("/")
	query = list.pop()
	path = "/".join(list)
    return (host, path+params, query)

if __name__ == "__main__":
    main()