Updated modules and DB functions - service needs DB update function added

lib/dbutils/dbutils.py

@@ -1,9 +1,17 @@
 import sqlite3 as sql
+import time
 
 tbl_artist_info_ddl = str('CREATE TABLE artist_info ('
-                            'artist_id        TEXT NOT NULL PRIMARY KEY,'
-                            'artist_info      TEXT,'
-                            'last_update      TEXT);')
+                            'artist_id                  TEXT NOT NULL PRIMARY KEY,'
+                            'artist_name                TEXT,'
+                            'artist_info                TEXT,'
+                            'mb_artist_id               TEXT,'
+                            'image_url                  TEXT,'
+                            'wikidata_url               TEXT,'
+                            'wikipedia_url              TEXT,'
+                            'wikipedia_image            TEXT,'
+                            'wikipedia_extract          TEXT,'
+                            'last_update                TEXT);')
 
 class SQLiteDatabase(object):
     def __init__(self, db_filename):
@@ -46,6 +54,7 @@ class SQLiteDatabase(object):
                 cursor.execute(query, params)
             else:
                 cursor.execute(query)
+            print("%s rows affected"%cursor.rowcount)
             return cursor
         except sql.Error as e:
             print("SQLite error %s"%e.args[0])
@@ -55,11 +64,36 @@ class SQLiteDatabase(object):
             print("Error params %s"%str(params))  
             print("Error params type %s"%type(params))
 
-    def update_artist(self, artist_id, artist_info, update_time):
-        success = False
-        query = 'INSERT or REPLACE INTO artist_info VALUES (?, ?, ?)'
-        params = (str(artist_id), str(artist_info), str(update_time)) 
+    def get_record_age(self, artist_id):
+        try:
+            last_update = self.get_value(artist_id, 'last_update')
+            record_age = round(time.time())-round(float(last_update[0][0]))
+            return record_age
+        except Exception as e:
+            print("get_record_age failed %s" % e)
+        return
+
+    def get_artist_info(self, artist_id):   
+        query = 'SELECT * FROM artist_info WHERE artist_id = ?'# %str(artist_id)
+        params = [str(artist_id)]    
         cursor = self.run_query(query, params)
+        return cursor.fetchall()
+
+    def get_all(self):
+        query = 'SELECT * FROM artist_info'
+        #params = [str(artist_id)]    
+        cursor = self.run_query(query)#, params)
+        return cursor.fetchall()
+
+    def update_value(self, artist_id, field_name, field_value):
+        success = False
+        query = 'UPDATE artist_info SET %s = ?, last_update = ? WHERE artist_id = ?' % str(field_name)        
+        params = [str(field_value), str(time.time()), str(artist_id)] 
+        cursor = self.run_query(query, params)
+        if (cursor.rowcount == 0):
+            query = 'INSERT OR IGNORE INTO artist_info (artist_id, %s, last_update) VALUES (?, ?, ?)' % str(field_name)        
+            params = [str(artist_id), str(field_value), str(time.time())] 
+            cursor = self.run_query(query, params)
         try:
             self.conn.commit()
             success = True
@@ -68,8 +102,8 @@ class SQLiteDatabase(object):
             pass
         return success
 
-    def get_artist_info(self, artist_id):   
-        query = 'SELECT * FROM artist_info WHERE artist_id = ?'
+    def get_value(self, artist_id, field_name):   
+        query = 'SELECT %s FROM artist_info WHERE artist_id = ?' % str(field_name)
         params = [str(artist_id)]    
         cursor = self.run_query(query, params)
         return cursor.fetchall()

lib/musicbrainz/__init__.py

@@ -0,0 +1,6 @@
+"""
+Musicbrainz utilities for plugin.audio.subsonic
+"""
+from .mbconnection import *
+
+__version__ = '0.0.1'

lib/musicbrainz/mbconnection.py

@@ -0,0 +1,146 @@
+import os
+import json
+import urllib.request
+from urllib.parse import urlencode
+import xml.etree.ElementTree as ET
+import re
+
+urllib.request.install_opener(urllib.request.build_opener(urllib.request.HTTPSHandler))
+
+class MBConnection(object):
+    def __init__(self, lang = "en"):
+        self._lang = lang        
+        self._baseUrl = "https://musicbrainz.org/ws/2"
+        self._wikipediaBaseUrl = "https://{}.wikipedia.org/wiki".format(self._lang)
+        self._wikidataBaseUrl = "https://www.wikidata.org/wiki/Special:EntityData"
+        self._opener = self._getOpener()
+
+    def _getOpener(self):
+        opener = urllib.request.build_opener(urllib.request.HTTPSHandler)
+        return opener
+
+    def search(self, entity, query, limit=None, offset=None):
+        viewName = '%s' % entity
+        q = self._getQueryDict({'query': query, 'limit': limit, 'offset': offset})
+        req = self._getRequest(self._baseUrl, viewName, q)
+        res = self._doInfoReqXml(req)
+        return res
+
+    def get_wiki_extract(self, title):
+        try:        
+            if('http' in title):
+                #accepts search text or full url https://en.wikipedia.org/wiki/Alex_Lloyd
+                pattern = 'wikipedia.org/wiki/(.+)'
+                title = re.search(pattern, title).group(1)
+            viewName = 'api.php'
+            q = self._getQueryDict({'format' : 'json', 'action' : 'query', 'prop' : 'extracts', 'redirects' : 1, 'titles' : title})
+            req = self._getRequest(self._wikipediaBaseUrl[:-3], viewName, q, 'exintro&explaintext&')
+            res = self._doInfoReqJson(req)
+            pages = res['query']['pages']
+            extract = list(pages.values())[0]['extract']
+            return extract
+        except Exception as e:
+            print("get_artist_wikpedia failed %s"%e)
+        return
+
+#https://en.wikipedia.org/w/api.php?exintro&explaintext&format=json&action=query&prop=extracts&redirects=1&titles=%C3%89milie_Simon
+    def get_wiki_image(self, title):
+        try:
+            if('http' in title):
+                #accepts search text or full url https://en.wikipedia.org/wiki/Alex_Lloyd
+                pattern = 'wikipedia.org/wiki/(.+)'
+                title = re.search(pattern, title).group(1)
+            viewName = 'api.php'
+            q = self._getQueryDict({'format' : 'json', 'action' : 'query', 'prop' : 'pageimages', 'pithumbsize' : 800, 'titles' : title})
+            req = self._getRequest(self._wikipediaBaseUrl[:-3], viewName, q)
+            res = self._doInfoReqJson(req)
+            pages = res['query']['pages']
+            print(res['query']['pages'])
+            image_url = list(pages.values())[0]['thumbnail']['source']
+            return image_url
+        except Exception as e:
+            print("get_wiki_image failed %s"%e)
+        return
+
+    def get_artist_id(self, query):
+        try:
+            dres = self.search('artist', query)
+            artist_list = dres.find('{http://musicbrainz.org/ns/mmd-2.0#}artist-list')
+            artist = artist_list.find('{http://musicbrainz.org/ns/mmd-2.0#}artist') 
+            return artist.attrib['id']
+        except Exception as e:
+            print("get_artist_id failed %s"%e)
+        return
+
+    def get_relation(self, artist_id, rel_type):
+        try:
+            viewName = 'artist/%s' % artist_id
+            q = self._getQueryDict({'inc': "url-rels"})
+            req = self._getRequest(self._baseUrl, viewName, q)
+            res = self._doInfoReqXml(req)
+            for relation in res.iter('{http://musicbrainz.org/ns/mmd-2.0#}relation'):
+                if relation.attrib['type'] == rel_type:
+                    return relation.find('{http://musicbrainz.org/ns/mmd-2.0#}target').text
+        except Exception as e:
+            print("get_artist_image failed %s"%e)
+        return
+
+    def get_artist_image(self, artist_id):
+        try:
+            image = self.get_relation(artist_id, 'image')       
+            return image
+        except Exception as e:
+            print("get_artist_image failed %s"%e)
+        return
+
+    def get_artist_wikpedia(self, artist_id):   
+        wikidata_url = self.get_relation(artist_id, 'wikidata') 
+        pattern = 'www.wikidata.org/wiki/(Q\d+)'
+        try:
+            wikidata_ref = re.search(pattern, wikidata_url).group(1)
+            viewName = '%s.rdf' % wikidata_ref
+            q = self._getQueryDict({})
+            req = self._getRequest(self._wikidataBaseUrl, viewName, q )
+            res = self._doInfoReqXml(req)
+            for item in res.iter('{http://www.w3.org/1999/02/22-rdf-syntax-ns#}Description'):
+                try:
+                    url = item.attrib['{http://www.w3.org/1999/02/22-rdf-syntax-ns#}about']
+                    if self._wikipediaBaseUrl in url:
+                        #print(urlencode(url))
+                        #print((url.encode().decode('unicode-escape')))
+                        return urllib.parse.unquote(url)
+                except KeyError:
+                    pass
+        except Exception as e:
+            print("get_artist_wikpedia failed %s"%e)
+        return
+
+    def _getQueryDict(self, d):
+        """
+        Given a dictionary, it cleans out all the values set to None
+        """
+        for k, v in list(d.items()):
+            if v is None:
+                del d[k]
+        return d    
+
+    def _getRequest(self, baseUrl, viewName, query={}, prefix=""):
+        qdict = {}
+        qdict.update(query)
+        url = '%s/%s' % (baseUrl, viewName)
+        if(prefix!='' or qdict!={}):
+            url += "?%s%s" % (prefix, urlencode(qdict))
+        print("UseGET URL %s" % (url))
+        req = urllib.request.Request(url)
+        return req
+
+    def _doInfoReqXml(self, req):
+        res = urllib.request.urlopen(req)
+        data = res.read().decode('utf-8')   
+        dres = ET.fromstring(data)
+        return dres
+
+    def _doInfoReqJson(self, req):
+        res = urllib.request.urlopen(req)
+        dres = json.loads(res.read().decode('utf-8'))
+        return dres