Merge branch 'addehow' of https://github.com/greatdg/you-get into greatdg-addehow

src/you_get/downloader/__init__.py

@@ -9,6 +9,7 @@ from .cntv import *
 from .coursera import *
 from .dailymotion import *
 from .douban import *
+from .ehow import *
 from .facebook import *
 from .fivesing import *
 from .freesound import *

src/you_get/downloader/__main__.py

@@ -28,6 +28,7 @@ def url_to_module(url):
         'coursera': coursera,
         'dailymotion': dailymotion,
         'douban': douban,
+        'ehow': ehow,
         'facebook': facebook,
         'freesound': freesound,
         'google': google,

src/you_get/downloader/ehow.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+
+__all__ = ['ehow_download']
+
+from ..common import *
+
+def ehow_download(url, output_dir = '.', merge = True, info_only = False):
+	
+	assert re.search(r'http://www.ehow.com/video_', url), "URL you entered is not supported"
+
+	html = get_html(url)
+	contentid = r1(r'<meta name="contentid" scheme="DMINSTR2" content="([^"]+)" />', html)
+	vid = r1(r'"demand_ehow_videoid":"([^"]+)"', html)
+	assert vid
+
+	xml = get_html('http://www.ehow.com/services/video/series.xml?demand_ehow_videoid=%s' % vid)
+    
+	from xml.dom.minidom import parseString
+	doc = parseString(xml)
+	tab = doc.getElementsByTagName('related')[0].firstChild
+
+	for video in tab.childNodes:
+		if re.search(contentid, video.attributes['link'].value):
+			url = video.attributes['flv'].value
+			break
+
+	title = video.attributes['title'].value
+	assert title 
+
+	type, ext, size = url_info(url)
+	print_info(site_info, title, type, size)
+	
+	if not info_only:
+		download_urls([url], title, ext, size, output_dir, merge = merge)
+
+site_info = "ehow.com"
+download = ehow_download
+download_playlist = playlist_not_supported('ehow')