Add LetOn.tv plugin

docs/plugin_matrix.rst

@@ -38,6 +38,7 @@ gomexp              gomexp.com           Yes   No
 goodgame            goodgame.ru          Yes   No    Only HLS streams are available.
 hitbox              hitbox.tv            Yes   Yes
 ilive               ilive.to             Yes   --
+leton               leton.tv             Yes   --
 livestation         livestation.com      Yes   --
 livestream          new.livestream.com   Yes   --
 mips                mips.tv              Yes   --    Requires rtmpdump with K-S-V patches.

src/livestreamer/plugins/letontv.py

@@ -0,0 +1,83 @@
+from livestreamer import NoStreamsError
+import re
+
+from livestreamer.plugin import Plugin
+from livestreamer.plugin.api import http
+from livestreamer.stream import RTMPStream
+
+SWF_URL = "http://files.leton.tv/jwplayer.flash.swf"
+
+URL_REGEX = re.compile("""
+    http?://(\w+.)?
+    (leton.tv/player\.php\?)
+    (streampage=)
+    (?P<streampage>[^/?&]+)
+""", re.VERBOSE)
+
+JS_VAR_A_REGEX = r"var a = ([\d]+);"
+JS_VAR_B_REGEX = r"var b = ([\d]+);"
+JS_VAR_C_REGEX = r"var c = ([\d]+);"
+JS_VAR_D_REGEX = r"var d = ([\d]+);"
+JS_VAR_F_REGEX = r"var f = ([\d]+);"
+JS_VAR_V_PART_REGEX = r"var v_part = \'/(spull|pull)/([^;]+)\';"
+
+
+class LetOnTV(Plugin):
+    @classmethod
+    def can_handle_url(self, url):
+        return re.match(URL_REGEX, url)
+
+    def _find_server_ip(self, text):
+        """ Decode the server ip stored as JavaScript variables in the stream's page """
+        match = re.search(JS_VAR_A_REGEX, text)
+        if match:
+            var_a = int(match.group(1))
+        match = re.search(JS_VAR_B_REGEX, text)
+        if match:
+            var_b = int(match.group(1))
+        match = re.search(JS_VAR_C_REGEX, text)
+        if match:
+            var_c = int(match.group(1))
+        match = re.search(JS_VAR_D_REGEX, text)
+        if match:
+            var_d = int(match.group(1))
+        match = re.search(JS_VAR_F_REGEX, text)
+        if match:
+            var_f = int(match.group(1))
+
+        if not var_a or not var_b or not var_c or not var_d or not var_f:
+            raise NoStreamsError(self.url)
+
+        ip_octets = [str(int(var_a / var_f)), str(int(var_b / var_f)), str(int(var_c / var_f)), str(int(var_d / var_f))]
+        ip_delimiter = "."
+        server_ip = ip_delimiter.join(ip_octets)
+
+        return server_ip
+
+    def _get_streams(self):
+        res = http.get(self.url)
+
+        server_ip = self._find_server_ip(res.text)
+        match = re.search(JS_VAR_V_PART_REGEX, res.text)
+
+        if match:
+            rtmp_url_postfix = match.group(1)
+            playpath = match.group(2)
+
+        if not rtmp_url_postfix or not playpath:
+            raise NoStreamsError(self.url)
+
+        streams = {}
+        params = {
+            "rtmp": "rtmp://{0}/{1}".format(server_ip, rtmp_url_postfix),
+            "playpath": playpath,
+            "pageUrl": self.url,
+            "swfUrl": SWF_URL,
+            "live": True
+        }
+
+        streams["live"] = RTMPStream(self.session, params)
+        return streams
+
+
+__plugin__ = LetOnTV