Added lambda auto config

lambda_config/lambda_config.py

@@ -0,0 +1,92 @@
+import os
+import json
+import boto3
+from typing import Optional
+from pydantic import BaseModel
+from redirects_base import Redirects
+
+s3_client = None
+bucket_config = ''
+bucket_data = ''
+
+
+class S3Bucket(BaseModel):
+    name: str
+    ownerIdentity: dict
+    arn: str
+
+class S3Object(BaseModel):
+    key: str
+    eTag: Optional[str | None] = None
+    size: Optional[int | None] = None
+    sequencer: Optional[str | None] = None
+
+class S3Event(BaseModel):
+    s3SchemaVersion: str
+    bucket: S3Bucket
+    object: S3Object
+
+class Record(BaseModel):
+    eventName: str
+    eventSource: str
+    eventTime: str
+    s3: S3Event
+
+def lambda_handler(event: dict, context):
+    global s3_client, bucket_config, bucket_data
+
+    if s3_client is None:
+        print("Init Function")
+        bucket_config = os.environ.get('BUCKET_CONFIG', 'standout-config')
+        bucket_data = os.environ.get('BUCKET_DATA', 'standout-data')
+        print(f'Bucket Config: {bucket_config}')
+        print(f'  Bucket Data: {bucket_data}')
+        s3_client = boto3.client('s3')
+
+    ## Download redirects file
+    redirects = None
+    try: 
+        resp = s3_client.get_object(
+            Bucket=bucket_config,
+            Key='redirects.json'
+        )
+        redirects = Redirects(**json.load(resp['Body']))
+    except s3_client.exceptions.NoSuchKey as e:
+        print(e)
+        # Oppure pagina "siamo spiacenti ma il contenuto non e' disponibile"
+        return {
+            "statusCode": 404
+        }
+
+    # Proces records
+    for r in event["Records"]:
+        record = Record(**r)
+        if record.eventSource != "aws:s3":
+            return False
+        
+        print(f"Action: {record.eventName}")
+        print(f"Object:{record.s3}")
+
+        match record.eventName:
+            case "ObjectCreated:Put" | "ObjectCreated:Post":
+                print(f"Object add: {record.s3.object.key}")
+                key_components = record.s3.object.key.split('/')
+                # capire il numero di key components, aggiornare il modello
+                return True
+            
+            
+            case "ObjectCreated:Copy":
+                print(f"Object copy: {record.s3.object.key}")
+                return True
+            
+
+            case "s3:ObjectRemoved:*":
+                print(f"Object remove: {record.s3.object.key}")
+                return True
+            
+            case _:
+                print("Unknown action")
+        
+
+if __name__ == "__main__":
+    lambda_handler({}, None)

lambda_config/redirects_base.py

@@ -0,0 +1,55 @@
+from typing import Dict, Optional
+from pydantic import BaseModel
+
+class Content(BaseModel):
+    type: str
+    key: str
+    url: Optional[str | None]
+
+class Tag(BaseModel):
+    status: str
+    content: Content | Dict[str, Content] | None = None 
+
+class Customer(BaseModel):
+    status: str
+    tags: Dict[str, Tag] | None = None
+
+class Redirects(BaseModel):
+    customers: Dict[str, Customer]
+
+if __name__ == "__main__":
+    r = Redirects (
+        customers = {
+            "cust1": Customer(
+                status="active",
+                tags= {
+                    "tag1" : Tag (
+                        status="active",
+                        content= Content(
+                            type="s3",
+                            key="foo",
+                            url=None
+                        )
+                    ),
+                    "tag2" : Tag(
+                        status="active",
+                        content =  {
+                            "face1" : Content(
+                                type="s3",
+                                key="contentface1",
+                                url = "foo"
+                            ),
+                            "face2": Content(
+                                type="s3",
+                                key="contentface2",
+                                url = "bar"
+                            ),
+                        }
+                    )
+                }
+            )
+        }
+    )
+
+    r.customers['cust2'] = Customer(status="inactive", tags=None)
+    print(r.model_dump_json(indent=2))