#!/usr/bin/env python

import os
import pycurl
import re
import string
import sys
import tempfile
import time
import urllib
import urlparse
import xmlrpclib

from HTMLParser import HTMLParser

MAX_POST_NO = 10000

class WordPress:

    def __init__(self, url, username, password):
        self.__username = username
        self.__password = password
        self.__proxy = xmlrpclib.ServerProxy(url)

    def all_posts(self):
        return self.__proxy.metaWeblog.getRecentPosts("",
                                                      self.__username,
                                                      self.__password,
                                                      MAX_POST_NO)

    def post_comments(self, post):
        return self.__proxy.wp.getComments("",
                                           self.__username,
                                           self.__password,
                                           {"post_id" : post["postid"],
                                            "number": MAX_POST_NO})

class MyHTMLParser(HTMLParser):

    def __init__(self, url, imgdir):
        HTMLParser.__init__(self)
        self.url = url
        self.imgdir = imgdir

    def handle_starttag(self, tag, attrs):
        if tag == "img":
            for attr in attrs:
                if attr[0] == "src":
                    self.download_image(attr[1])

    def download_image(self, url):
        parsed = urlparse.urlparse(url)
        if parsed.netloc == self.url:
            print "  downloading %s" % url
            filename = os.path.join(self.imgdir, parsed.path[1:])
            try:
                os.makedirs(os.path.dirname(filename))
            except os.error:
                pass
            fp = open(filename, "wb")
            curl = pycurl.Curl()
            curl.setopt(pycurl.URL, str(url))
            curl.setopt(pycurl.FOLLOWLOCATION, 1)
            curl.setopt(pycurl.MAXREDIRS, 5)
            curl.setopt(pycurl.CONNECTTIMEOUT, 30)
            curl.setopt(pycurl.TIMEOUT, 300)
            curl.setopt(pycurl.NOSIGNAL, 1)
            curl.setopt(pycurl.WRITEDATA, fp)
            curl.perform()
            curl.close()
            fp.close()

def html_media_object(service, url, media_id):
    services = {"youtube" : '<object width="480" height="385"><param name="movie" value="http://%url%/v/%media_id%fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://%url%/v/%media_id%?fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>',
                "googlevideo": '<object type="application/x-shockwave-flash" data="http://%url%/googleplayer.swf?docid=%media_id%" height="330" width="400"><param name="allowScriptAccess" value="never"/><param name="movie" value="http://%url%/googleplayer.swf?docid=%media_id%"/><param name="quality" value="best"/><param name="bgcolor" value="#ffffff"/><param name="scale" value="noScale"/><param name="wmode" value="opaque"/></object>'}

    html_center_start = '<p><span style="text-align: center; display: block;">'
    html_center_end = '</span></p>'
    html_service = services[service]
    html_service = html_service.replace("%url%", url)
    html_service = html_service.replace("%media_id%", media_id)
    return html_center_start + html_service + html_center_end

def analyze_media(content):
    p_youtube = re.compile(r"\[youtube=http://([a-zA-Z0-9\-\.]+)/watch\?v=(.+)\]")
    p_googlevideo = re.compile(r"\[googlevideo=http://([a-zA-Z0-9\-\.]+)/videoplay\?docid=([\-0-9]+).*\]")
    lines = content.split("\n")
    new_lines = []
    for line in lines:
        m_youtube = p_youtube.search(line)
        m_googlevideo = p_googlevideo.search(line)
        if m_youtube:
            html_object = html_media_object("youtube",
                                            m_youtube.group(1),
                                            m_youtube.group(2))
            new_lines.append(html_object)
        elif m_googlevideo:
            html_object = html_media_object("googlevideo",
                                            m_googlevideo.group(1),
                                            m_googlevideo.group(2))
            new_lines.append(html_object)
        else:
            new_lines.append(line)
    return "\n".join(new_lines)

def make_dir(path):
    os.mkdir(path)
    return path + "/"

def write_file(path, content):
    f = open(path, "w")
    f.write(content.encode("utf-8"))
    f.close()

def write_comment(comment, dir):
    def make_metadata():
        out = ""
        keys = {"comment_id" : "id",
                "author" : "author",
                "author_email" : "author_email",
                "author_url" : "author_url",
                "author_ip" : "author_ip",
                "status" : "approved"}
        for k in keys:
            if (k != "status") or ((k == "status") and (comment[k] != "spam")):
                out += "%s: %s\n" % (k, comment[k])
        date = comment["date_created_gmt"]
        out += "timestamp: %s\n" % int(time.mktime(date.timetuple()))
        return out

    write_file(dir + str(comment["comment_id"]),
               make_metadata() + "\n" + comment["content"])

def unescape(s):
    s = s.replace("&lt;", "<")
    s = s.replace("&gt;", ">")
    s = s.replace("&amp;", "&")
    return s

def make_post_key(post):
    d = post["dateCreated"].timetuple()
    pre = "%d/%02d/%02d/%s" % (d.tm_year, d.tm_mon, d.tm_mday, post["wp_slug"])
    return urllib.quote(pre, "").lower()

def get_post_images(post, url, imgdir):
    parser = MyHTMLParser(url, imgdir)
    parser.feed(post["description"])

def write_post(post, categories, comments, images_url, new_images_url):
    print "writing post %s" % unescape(post["title"])
    def make_metadata(key):
        out = ""
        keys = {"postid" : "id",
                "wp_author_display_name" : "author",
                "title" : "title",
                "post_status" : "status",
                "mt_allow_comments" : "comment_status"}
        for k in keys:
            value = post[k]
            if k == "mt_allow_comments":
                if value == 1:
                    value = "open"
                else:
                    value = "closed"
            out += "%s: %s\n" % (keys[k], value)
        out += "name: %s\n" % key
        out += "tags: %s\n" % ", ".join(categories)
        out += "timestamp: %s\n" % int(time.mktime(post["dateCreated"].timetuple()))
        return unicode(out)

    key = make_post_key(post)
    d = make_dir(key)
    content = string.replace(post["description"], images_url, new_images_url)
    content = analyze_media(content)
    write_file(d + "content", content)
    write_file(d + "metadata", make_metadata(key))
    if comments:
        c = make_dir(d + "comments")
        for comment in comments:
            write_comment(comment, c)

def main(args):
    d_posts = tempfile.mkdtemp(prefix="wp2dir")
    d_images = tempfile.mkdtemp(prefix="wp2img")
    print "creating directories %s and %s" % (d_posts, d_images)

    try:
        _, url, images_url, new_images_url, user, passwd = args
    except ValueError:
	print
        print "usage: wordpress-xmlrpc-to-dir.py url images_url new_images_url user password"
	print
	print "   url             Wordpress XMLRPC URL"
	print "   images_url      Current Wordpress images URL (without http://)"
	print "   new_images_url  New tekuti images URL (without http://)"
	print "   user            Wordpress user"
	print "   password        Wordpress user password"
	print
        sys.exit(1)

    wp = WordPress(url, user, passwd)
    posts = wp.all_posts()
    for post in posts:
        comments = wp.post_comments(post)
        os.chdir(d_posts)
        write_post(post, post["categories"], comments, images_url, new_images_url)
        os.chdir(d_images)
        get_post_images(post, images_url, d_images)

if __name__ == "__main__":
    main(sys.argv)