First working version

lambda_config/lambda_config.py

@@ -1,9 +1,8 @@
 import os
 import json
 import boto3
-from typing import Optional
+from typing import Dict, Optional
 from pydantic import BaseModel
-import pydantic_core
 from redirects_base import Content, Customer, Redirects, Tag
 
 s3_client = None
@@ -55,7 +54,7 @@ def lambda_handler(event: dict, context):
             redirects = Redirects.model_validate_json(resp['Body'].read())
         else:
             with open('/home/emanuele/dev/StandOut/lambda_config/redirects.json', 'r') as f:
-                redirects = Redirects.model_validate_json(f.read())
+                redirects = Redirects.model_validate_json(f.read(), strict=False)
     except s3_client.exceptions.NoSuchKey as e:
         print(e)
         # Oppure pagina "siamo spiacenti ma il contenuto non e' disponibile"
@@ -72,25 +71,82 @@ def lambda_handler(event: dict, context):
         print(f"Action: {record.eventName}")
         print(f"Object: {record.s3}")
 
-        # splitta la chiave per capire la directory
-        keys = record.s3.object.key.split('/')
-        keys.reverse()
-
         match record.eventName:
             case "ObjectCreated:Put" | "ObjectCreated:CompleteMultipartUpload":
-                print(f"ObjectCreated: {record.s3.object.key}")
+                processAdd(record=record, redirects=redirects, client=s3_client)
+
+            case "ObjectRemoved:Delete":
+                keys = getObjectKeys(record=record)
+                
+                if not redirects.customers:
+                    return False
+                cust_key = keys.pop()
+                customer = redirects.customers.get(cust_key, None)
+                if len(keys) == 0 or not customer:
+                    redirects.customers.pop(cust_key, None)
+                    break
+
+                if not customer.tags:
+                    return False
+                tag_key = keys.pop()
+                tag = customer.tags.get(tag_key, None)
+                if len(keys) == 0 or not tag:
+                    customer.tags.pop(tag_key, None)
+                    break
+
+                match len(keys):
+                    case 2:
+                        if not tag.content or not isinstance(tag.content, Dict):
+                            return False
+                        tag.content.pop(keys[1], None)
+                    case 1:
+                        if isinstance(tag.content, Dict) and keys[0] in tag.content.keys():
+                          tag.content[keys[0]] = None  
+                        else:
+                            tag.content = None
+                    case _:
+                        print("Unexpected")
+                        return False
+                
+                print(f"Object remove: {record.s3.object.key}")
+
+            case "ObjectCreated:Copy":
+                print(f"Object copy: {record.s3.object.key}")
+            
+            case _:
+                print("Unknown action")
+
+    if context is not None:
+        resp = s3_client.put_object(Bucket=bucket_config, 
+                                Key='redirects.json', 
+                                Body=redirects.model_dump_json(indent=2))
+        print(f"New redirects version: {resp['ETag']}")
+    else:
+        with open('/home/emanuele/dev/StandOut/lambda_config/redirects.json', 'w') as f:
+            f.write(redirects.model_dump_json(indent=2))
+
+    return True
+    
+def getObjectKeys(record: Record) -> list[str]:
+    keys = [v for v in record.s3.object.key.split('/') if v != '']
+    keys.reverse()
+    return keys
+    
+def processAdd(record: Record, redirects: Redirects, client) -> None:
+    # splitta la chiave per capire la directory
+    keys = getObjectKeys(record=record)
     
     # crea il primo utente se necessario o selezionalo
     cust_key = keys.pop()
     if redirects.customers is None:
-                    redirects.customers = {cust_key: Customer(status="active")}
+        redirects.customers = {cust_key: Customer(status="active", tags=None)}
     if cust_key not in redirects.customers.keys():
-                    redirects.customers[cust_key] = Customer(status="active")
+        redirects.customers[cust_key] = Customer(status="active", tags=None)
     
     # Aggiunto solo un cliente
-                if len(keys) == 0:
-                    break
     c = redirects.customers[cust_key]
+    if len(keys) == 0 or not c:
+        return
 
     # crea un tag per l'utente, con contenuto nullo o selezionalo
     tag_key = keys.pop()
@@ -100,14 +156,14 @@ def lambda_handler(event: dict, context):
         c.tags[tag_key] = Tag(status="active", content=None)
 
     # Aggiunta anche una chiave
-                if len(keys) == 0:
-                    break
     t = c.tags[tag_key]
+    if len(keys) == 0 or not t:
+        return
 
     # Crea un contenuto per il tag a seconda della lunghezza della chiave
     file_name = keys[0]
     if file_name == "url.txt":
-                    with s3_client.get_object(Bucket=bucket_data, Key=record.s3.object.key)['Body'] as url_file:
+        with client.get_object(Bucket=bucket_data, Key=record.s3.object.key)['Body'] as url_file:
             content = Content(type='url', key=file_name, url=url_file.readline().decode().strip())
     else:
         content = Content(type='s3', key=file_name, url=None)
@@ -124,25 +180,7 @@ def lambda_handler(event: dict, context):
         case _:
             print("Too long keys")
 
-            case "ObjectCreated:Copy":
+    print(f"ObjectCreated: {record.s3.object.key}")
-                print(f"Object copy: {record.s3.object.key}")
-            
-            case "s3:ObjectRemoved:Delete":
-                print(f"Object remove: {record.s3.object.key}")
-            
-            case _:
-                print("Unknown action")
-
-        if context is not None:
-            resp = s3_client.put_object(Bucket=bucket_config, 
-                                 Key='redirects.json', 
-                                 Body=redirects.model_dump_json(indent=2))
-            print(f"New redirects version: {resp['ETag']}")
-        else:
-            with open('/home/emanuele/dev/StandOut/lambda_config/redirects.json', 'w') as f:
-                f.write(redirects.model_dump_json(indent=2))
-
-        return True
         
 
 if __name__ == "__main__":

lambda_config/redirects.json

@@ -1,49 +1,13 @@
 {
   "customers": {
-    "customer1": {
+    "customer3": {
       "status": "active",
       "tags": {
-        "tag1": {
-          "status": "active",
-          "content": {
-            "type": "url",
-            "key": "url.txt",
-            "url": "https://grafana.etss.it/d/LbON5PkGz/power?orgId=1&from=now-12h&to=now&refresh=30s"
-          }
-        },
         "tag2": {
           "status": "active",
           "content": {
             "type": "s3",
-            "key": "file.txt",
+            "key": "foo.txt",
-            "url": null
-          }
-        }
-      }
-    },
-    "customer2": {
-      "status": "active",
-      "tags": {
-        "tag1": {
-          "status": "active",
-          "content": {
-            "face1": {
-              "type": "s3",
-              "key": "file.txt",
-              "url": null
-            }
-          }
-        }
-      }
-    },
-    "customer3": {
-      "status": "active",
-      "tags": {
-        "tag1": {
-          "status": "active",
-          "content": {
-            "type": "s3",
-            "key": "VID20240116160134.mp4",
             "url": null
           }
         }

lambda_config/redirects_base.py

@@ -4,52 +4,15 @@ from pydantic import BaseModel
 class Content(BaseModel):
     type: str
     key: str
-    url: Optional[str | None] = None
+    url: Optional[str | None]
 
 class Tag(BaseModel):
     status: str
-    content: Content | Dict[str, Content] | None = None 
+    content: Optional[Content | Dict[str, Optional[Content]]]
 
 class Customer(BaseModel):
     status: str
-    tags: Dict[str, Tag] | None = None
+    tags: Optional[Dict[str, Optional[Tag]] ]
 
 class Redirects(BaseModel):
-    customers: Dict[str, Customer] | None = None
+    customers: Dict[str, Optional[Customer]] | None = None
-
-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))

lambda_config/test.json

@@ -27,7 +27,7 @@
                     "arn": "arn:aws:s3:::standout-data"
                 },
                 "object": {
-                    "key": "customer1/tag2/file.txt",
+                    "key": "customer3/tag2/foo.txt",
                     "size": 2844326,
                     "eTag": "7039e5338840f289d0510dc9149bf0b5",
                     "sequencer": "00662A206F99CD2E09"