Final

server.py

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+import xmlrpc.server
+import xml.etree.ElementTree as ET
+
+# Class to handle the server side of the XML-RPC server
+
+
+class Server:
+    def __init__(self):
+        self.db = ET.parse('db.xml')
+        self.root = self.db.getroot()
+
+    # Check if the topic exists
+    def check_topic(self, topic):
+        for child in self.root:
+            if child.attrib['name'] == topic:
+                return True
+        return False
+
+    # Create a new topic if it doesn't exist
+    def create_topic(self, topic):
+        new_topic = ET.Element('topic', {'name': topic})
+        self.root.append(new_topic)
+        self.db.write('db.xml')
+        return True
+
+    # Add a note of a topic to the database
+    def add_note(self, topic, note, text, timestamp):
+        for child in self.root:
+            if child.attrib['name'] == topic:
+                new_note = ET.Element('note', {'name': note})
+                new_text = ET.Element('text')
+                new_text.text = text
+                new_note.append(new_text)
+                new_timestamp = ET.Element('timestamp')
+                new_timestamp.text = timestamp
+                new_note.append(new_timestamp)
+                child.append(new_note)
+                self.db.write('db.xml')
+                return True
+        return False
+
+    # Add a Wikipedia link to the note
+    def add_link(self, topic, info):
+        for child in self.root:
+            if child.attrib['name'] == topic:
+                # get the last note element
+                last_note = child.findall('note')[-1]
+                new_info = ET.Element('info')
+                new_info.text = info
+                last_note.append(new_info)
+                self.db.write('db.xml')
+                return True
+        return False
+
+    # Get all the notes of a topic
+    def get_notes(self, topic):
+        for child in self.root:
+            if child.attrib['name'] == topic:
+                notes = []
+                for note in child.findall('note'):
+                    notes.append({
+                        'name': note.attrib['name'],
+                        'text': note.find('text').text,
+                        'timestamp': note.find('timestamp').text,
+                        'info': note.find('info').text
+                    })
+                return notes
+
+
+# Start the server
+if __name__ == '__main__':
+    server = xmlrpc.server.SimpleXMLRPCServer(('localhost', 7777))
+    server.register_instance(Server())
+    server.serve_forever()