Get youtube/vimeo/vevo/vine video thumbnail

import re
import urllib2


class Thumbnail(object):

    YOUTUBE_THUMBNAIL_URL = 'https://i.ytimg.com/vi/{video_id}/hqdefault.jpg'
    VEVO_VIDEO_URL = 'http://www.vevo.ly/{video_id}'
    VEVO_THUMBNAIL_URL_REGEXP1 = re.compile('"thumbnailUrl":"(.+?)"')
    VEVO_THUMBNAIL_URL_REGEXP2 = re.compile('link itemprop="thumbnailUrl" href="(.+?)"')
    VINE_VIDEO_URL = 'http://vine.co/v/{video_id}'
    VINE_THUMBNAIL_URL_REGEXP = re.compile('"thumbnailUrl": "(.+?)"')
    VIMEO_DATA_URL = 'http://vimeo.com/api/v2/video/{video_id}.json'
    VIMEO_THUMBNAIL_URL_REGEXT = re.compile('"thumbnail_large":"(.+?)"')

    @classmethod
    def youtube(cls, video_id):
        return cls.YOUTUBE_THUMBNAIL_URL.format(video_id=video_id)

    @classmethod
    def vimeo(cls, video_id):
        vimeo_url = cls.VIMEO_DATA_URL.format(video_id=video_id)
        data = urllib2.urlopen(vimeo_url).read()
        results = cls.VIMEO_THUMBNAIL_URL_REGEXT.findall(data)
        if results:
            return results[0].replace('\\/', '/')

    @classmethod
    def vevo(cls, video_id):
        video_url = cls.VEVO_VIDEO_URL.format(video_id=video_id)
        req = urllib2.Request(video_url)
        req.add_header(
            'User-Agent',
            'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3')
        page = urllib2.urlopen(req).read()
        # request from zone where vevo is available
        results = cls.VEVO_THUMBNAIL_URL_REGEXP1.findall(page)
        if not results:
            # if vevo is unavailable, it may be open on youtube
            results = cls.VEVO_THUMBNAIL_URL_REGEXP2.findall(page)
        if results:
            return results[0]

    @classmethod
    def vine(cls, video_id):
        vine_url = cls.VINE_VIDEO_URL.format(video_id=video_id)
        req = urllib2.Request(vine_url)
        req.add_header(
            'User-Agent',
            'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3')
        page = urllib2.urlopen(req).read()
        results = cls.VINE_THUMBNAIL_URL_REGEXP.findall(page)
        if results:
            return results[0].replace('\\/', '/')


if __name__ == '__main__':
    print Thumbnail.youtube(video_id='p8KwGIyHmhM')
    print Thumbnail.vimeo(video_id='45370040')
    print Thumbnail.vevo(video_id='x9fMmU')
    print Thumbnail.vine(video_id='OUBbPBrh2qH')