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import urllib.request
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import kode256
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import requests
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import gi
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from gi.repository import TotemPlParser
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from gsp import GstreamerPlayer
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from bureau import Bureau, add_command, add_webview
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class Audio(Bureau):
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"""
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The Audio Services department provides for playback and recording
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of sound within the office environment.
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"""
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name = "Audio Services Dept."
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prefix = "AU"
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version = 0
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def __init__(self):
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Bureau.__init__(self)
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self.urldb = self.open_db("urldb")
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self.player = GstreamerPlayer(None)
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self.current_uri = None
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@add_command("p", "Play an album, track or a live stream.")
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def play(self, data):
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"""
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Initiates playback of a media reference. This could be a song or album
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stored on the local office or remote URLs for live playback. Currently,
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only supports line-out signals on the default DAC.
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"""
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shortcode, _ = data.split(".")
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self.log.debug("looking up shortcode " + shortcode)
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pl_url = self.urldb.get(shortcode)
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self.log.debug(" playing url " + pl_url)
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pl_file, _ = urllib.request.urlretrieve(pl_url)
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pl_file= "file://" + pl_file
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parser = TotemPlParser.Parser()
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urls = []
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def parsercb(parser, uri, metadata, urls):
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#TODO: would be nice to use the metadata when adding the station
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# and for now-playing
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urls.append(uri)
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parser.connect("entry-parsed", parsercb, urls)
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parser.parse(pl_file, False)
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for url in urls:
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print("stream uri", url)
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self.player.queue(url)
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self.current_uri = url
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@add_command("stop", "Halt audio playback.")
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def stop(self):
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"""
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Stops all audio currently playing audio output.
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"""
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self.player.stop()
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@add_command("resu", "Resume playback.")
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def resume(self):
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"""
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Resume playback of paused audio.
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"""
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if self.current_uri:
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self.player.queue(self.current_uri)
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@add_command("next", "Play the next song.")
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def play_next(self):
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"""
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Skip to the next song in the playlist or album.
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"""
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#subprocess.call(["mocp", "-f"])
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# TODO
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self.print_small("SORRY! playlist->next is not yet implemented.")
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@add_command("prev", "Play the previous song.")
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def play_prev(self):
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"""
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Skip to the previous song in the playlist or album.
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"""
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#subprocess.call(["mocp", "-r"])
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# TODO
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self.print_small("SORRY! playlist->prev is not yet implemented.")
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@add_command("nowp", "Now Playing")
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def now_playing(self):
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"""
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Prints the currently playing song or stream on the small printer.
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"""
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out = "Now Playing: "
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if self.player.title:
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out += self.player.title + "\n"
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if self.player.artist:
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out += "by " + self.player.artist + "\n"
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if self.player.album:
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out += "from the album '" + self.player.album + "'\n"
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# TODO: add fields for "organization" and "location" for gstreamer-player
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# so we can get the station ID stuff
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self.log.debug("info output:" + out)
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self.print_small(out)
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@add_webview("radio", "radio")
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def radio_webview(self, data=None):
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"""
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Edit internet radio stations.
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"""
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#TODO: allow deletes
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#TODO: print out any new station
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#TODO: use some kind of nicer templates?
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ret = """
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<html><head><title>screenless office - internet radio admin</title></head>
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<body>
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<h1>Audio Department</h1>
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"""
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if data:
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if data["addurl"]:
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self.save_url(data["addurl"])
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ret += "<div>New station " + data["addurl"] + " saved!</div>\n"
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ret += "<h2>Radio Stations<h2>\n <ul>\n"
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with self.urldb.env.begin(db=self.urldb.db) as txn:
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for sh_code, url in txn.cursor():
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ret += "<li>" + url.decode("utf-8") + "</li>\n"
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ret += "</ul>\n"
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ret += """
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<form action='/AU/radio' method='POST'>
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<ul>
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<li>
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<label for="addurl">Add Radio Station URL:</label>
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<input type="text" id="addurl" name="addurl" />
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</li>
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<li class="button">
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<button type="submit">Save</button>
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</li>
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</ul>
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</form>
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</body></html>"""
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return ret
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def save_url(self, url):
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"""
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saves an url for a local file or network audio stream.
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"""
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# TODO: might be nice to save some station info: title, perhaps a logo, etc.
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code = self.urldb.store_and_get_shortcode(url)
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self.print_url(code)
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print("saved url with shortcode: ", code)
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def print_url(self, shortcode):
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url = self.urldb.get(shortcode)
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# download the url
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headers = {'User-Agent': 'Mozilla/5.0'}
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try:
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resp = requests.get(url, timeout=20.0, headers=headers)
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except requests.ReadTimeout:
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self.log.warning("Timeout reading url %s", url)
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self.print_small("Error: timed out reading " + url)
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return
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except requests.ConnectionError as e:
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self.log.warning("Error reading url %s", url)
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self.print_small("Error: connect error on " + url)
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return
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# TODO: support #EXTINF: extended attributes - logo or #EXTIMG or #PLAYLIST
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# TODO: support XSPF?? does anyone use this?
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# TODO: what to do with unwrapped links - raw mp3 or whateva - use vlc info?
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# if line startswith #EXTINF: title = first comma to EOL
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# if line startswith Title then title = first '=' to EOL
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title = ""
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for line in resp.text.splitlines():
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if line.startswith("#EXTINF:"):
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# this is m3u playlist - title is from first comma to EOL
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title = line[(line.find(',') + 1):].strip()
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elif line.startswith("Title"):
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# this looks like a pls playlist - title is from first '=' to EOL
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title = line[(line.find('=') + 1):].strip()
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# TODO: create barcode
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# small print title, url, barcode
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prn = self._get_small_printer()
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prn.textln("RADIO STATION:")
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prn.textln(title)
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prn.textln(url)
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prn.soft_barcode("code128", "AUp." + shortcode)
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prn.print_and_feed()
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#TODO: cut
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prn.close()
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def main():
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au = Audio()
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au.run()
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if __name__ == "__main__":
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main()
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