add mastodon statuses proxy

app/main.py

@@ -1,11 +1,13 @@
 from fastapi import Depends, FastAPI
-from routers import embed, yle_rss_fi, yle_rss_en, yle_rss_sv, the_local, taloustaito,sur,hackernews,fuengirola
+from routers import embed, yle_rss_fi, yle_rss_en, yle_rss_sv, the_local, taloustaito, sur, hackernews, fuengirola, \
+    statuses
 
 from settings.defaults import get_settings
 
 app = FastAPI(title='Mastobot', description='Mastodon Feed Automation Service', version=get_settings().version)
 
 app.include_router(embed.router, prefix="/embed", tags=["embed"])
+app.include_router(statuses.router, prefix="/statuses", tags=["proxy"])
 
 app.include_router(yle_rss_fi.router, prefix="/rss", tags=["rss"])
 app.include_router(yle_rss_en.router, prefix="/rss", tags=["rss"])

app/routers/statuses.py

@@ -0,0 +1,44 @@
+import logging
+from typing import Annotated
+
+import requests
+from fastapi import Depends, APIRouter, HTTPException, Request, Response, status
+
+from settings.defaults import Settings, get_settings
+
+router = APIRouter()
+logger = logging.getLogger(__name__)
+
+@router.get("/{account_id}", summary="Fetch Mastodon Statuses")
+async def get_statuses(account_id: str, request:Request, settings: Annotated[Settings, Depends(get_settings)]):
+
+    if account_id not in settings.mastodon:
+        logger.error('Account %s not found', account_id)
+        raise HTTPException(status_code=status.HTTP_204_NO_CONTENT, detail="Account not found.")
+
+    mastodon_account = settings.mastodon[account_id]
+    mastodon_server = settings.mastodon_server
+    mastodon_get_statuses_url = f'{mastodon_server}/api/v1/accounts/{account_id}/statuses'
+    token = mastodon_account['token']
+    headers = {
+        'Authorization': f'Bearer {token}',
+        'Content-type': 'application/json',
+        'User-Agent': 'Serverless Feed'
+    }
+    query_params = dict(request.query_params)
+    response = requests.get(mastodon_get_statuses_url, headers=headers, params=query_params)
+    if response.status_code != 200:
+        logger.error('Failed to get statuses', response)
+        raise HTTPException(status_code=response.status_code, detail=response.text)
+
+    forwarded_headers = {
+        'Content-type': 'application/json',
+        'User-Agent': 'Serverless Feed'
+    }
+
+    if 'link' in response.headers:
+        forwarded_headers["Access-Control-Expose-Headers"] = 'link'
+        forwarded_headers['link'] = response.headers['link'].replace(mastodon_get_statuses_url, str(request.base_url) + 'statuses/' + account_id)
+
+    return Response(content=response.content, status_code=response.status_code, headers=forwarded_headers)
+

app/settings/defaults.py

@@ -3,6 +3,7 @@ from functools import lru_cache
 
 class Settings(BaseSettings):
     mastodon_server:str
+    mastodon: dict[str, dict[str, object]]
     openai_api_key:str
     aws_access_key_id: str
     aws_secret_access_key: str