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"""

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    Uses PyRSS2Gen to generate XML RSS documents

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"""

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import PyRSS2Gen as RSS2Gen

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import datetime, pytz

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class RSSFormatter (object) :

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    """

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        Mixin for LogFormatter that implements the basic RSS-rendering stuff on top of format_html

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    """

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    def format_rss (self, lines, **kwargs) :

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        """

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            Process using format_html

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        """

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        # build the RSS2 object and return the XML

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        return RSS2Gen.RSS2(

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            title           = "IRC RSS feed",

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            link            = "http://irclogs.qmsk.net/",

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            description     = "A stupid RSS feed that nobody sane would ever use",

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            # XXX: GMT

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            lastBuildDate   = datetime.datetime.utcnow(),

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            items           = [

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                RSS2Gen.RSSItem(

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                    # use the formatted HTML data as the title

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                    title       = html_data,

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                    # timestamp

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                    pubDate     = line.timestamp.astimezone(pytz.utc),

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                    # link

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                    link        = "http://xxx/",

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                ) for line, html_data in self.format_html(lines, **kwargs)

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            ]

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        ).to_xml('utf8')

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