From fe1ed955cdf6b1746b9036712e42d0565d053193 Mon Sep 17 00:00:00 2001
From: krateng <git.noreply@krateng.ch>
Date: Mon, 27 Dec 2021 20:18:56 +0100
Subject: [PATCH] Added username/pw authentication for last.fm

---
 maloja/globalconf.py          |  2 ++
 maloja/thirdparty/__init__.py | 11 +++++++++++
 maloja/thirdparty/lastfm.py   | 23 ++++++++++++++++++++++-
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/maloja/globalconf.py b/maloja/globalconf.py
index 1efd32c..8bddd2e 100644
--- a/maloja/globalconf.py
+++ b/maloja/globalconf.py
@@ -166,6 +166,8 @@ malojaconfig = Configuration(
 			"lastfm_api_key":(tp.String(),										"Last.fm API Key",				None),
 			"lastfm_api_secret":(tp.String(),									"Last.fm API Secret",			None),
 			"lastfm_api_sk":(tp.String(),										"Last.fm API Session Key",		None),
+			"lastfm_username":(tp.String(),										"Last.fm Username",				None),
+			"lastfm_password":(tp.String(),										"Last.fm Password",				None),
 			"spotify_api_id":(tp.String(),										"Spotify API ID",				None),
 			"spotify_api_secret":(tp.String(),									"Spotify API Secret",			None),
 			"audiodb_api_key":(tp.String(),										"TheAudioDB API Key",			None),
diff --git a/maloja/thirdparty/__init__.py b/maloja/thirdparty/__init__.py
index c3ec838..9cc2647 100644
--- a/maloja/thirdparty/__init__.py
+++ b/maloja/thirdparty/__init__.py
@@ -92,6 +92,17 @@ class GenericInterface:
 		return True
 		# per default. no authorization is necessary
 
+	# wrapper method
+	def request(self,url,data,responsetype):
+		response = urllib.request.urlopen(
+			url,
+			data=utf(data)
+		)
+		responsedata = response.read()
+		if responsetype == "xml":
+			data = ElementTree.fromstring(responsedata)
+			return data
+
 # proxy scrobbler
 class ProxyScrobbleInterface(GenericInterface,abstract=True):
 
diff --git a/maloja/thirdparty/lastfm.py b/maloja/thirdparty/lastfm.py
index d3add7b..80f3c75 100644
--- a/maloja/thirdparty/lastfm.py
+++ b/maloja/thirdparty/lastfm.py
@@ -1,6 +1,7 @@
 from . import MetadataInterface, ProxyScrobbleInterface, utf
 import hashlib
 import urllib.parse, urllib.request
+from doreah.logging import log
 
 class LastFM(MetadataInterface, ProxyScrobbleInterface):
 	name = "LastFM"
@@ -9,7 +10,9 @@ class LastFM(MetadataInterface, ProxyScrobbleInterface):
 	settings = {
 		"apikey":"LASTFM_API_KEY",
 		"sk":"LASTFM_API_SK",
-		"secret":"LASTFM_API_SECRET"
+		"secret":"LASTFM_API_SECRET",
+		"username":"LASTFM_USERNAME",
+		"password":"LASTFM_PASSWORD"
 	}
 
 	proxyscrobble = {
@@ -42,6 +45,24 @@ class LastFM(MetadataInterface, ProxyScrobbleInterface):
 			"sk":self.settings["sk"]
 		})
 
+	def authorize(self):
+		try:
+			result = self.request(
+				self.proxyscrobble['scrobbleurl'],
+				self.query_compose({
+					"method":"auth.getMobileSession",
+					"username":self.settings["username"],
+					"password":self.settings["password"],
+					"api_key":self.settings["apikey"]
+				}),
+				responsetype="xml"
+			)
+			self.settings["sk"] = result.find("session").findtext("key")
+		except Exception as e:
+			pass
+			#log("Error while authenticating with LastFM: " + repr(e))
+
+
 	# creates signature and returns full query string
 	def query_compose(self,parameters):
 		m = hashlib.md5()