chore: format

mirrors/aria2_api.py

@@ -11,18 +11,20 @@ logger = logging.getLogger(__name__)
 
 async def send_request(method, params=None):
     payload = {
-        'jsonrpc': '2.0',
-        'id': uuid.uuid4().hex,
-        'method': method,
-        'params': [f'token:{RPC_SECRET}'] + (params or [])
+        "jsonrpc": "2.0",
+        "id": uuid.uuid4().hex,
+        "method": method,
+        "params": [f"token:{RPC_SECRET}"] + (params or []),
     }
 
     # specify the internal API call don't use proxy
-    async with httpx.AsyncClient(mounts={
-        "all://": httpx.AsyncHTTPTransport()
-    }) as client:
+    async with httpx.AsyncClient(
+        mounts={"all://": httpx.AsyncHTTPTransport()}
+    ) as client:
         response = await client.post(ARIA2_RPC_URL, json=payload)
-    logger.info(f"aria2 request: {method} {params} -> {response.status_code} {response.text}")
+    logger.info(
+        f"aria2 request: {method} {params} -> {response.status_code} {response.text}"
+    )
     try:
         return response.json()
     except json.JSONDecodeError as e:
@@ -30,38 +32,35 @@ async def send_request(method, params=None):
         raise e
 
 
-async def add_download(url, save_dir='/app/cache'):
-    method = 'aria2.addUri'
-    params = [[url],
-              {'dir': save_dir,
-               'header': []
-               }]
+async def add_download(url, save_dir="/app/cache"):
+    method = "aria2.addUri"
+    params = [[url], {"dir": save_dir, "header": []}]
     response = await send_request(method, params)
-    return response['result']
+    return response["result"]
 
 
 async def pause_download(gid):
-    method = 'aria2.pause'
+    method = "aria2.pause"
     params = [gid]
     response = await send_request(method, params)
-    return response['result']
+    return response["result"]
 
 
 async def resume_download(gid):
-    method = 'aria2.unpause'
+    method = "aria2.unpause"
     params = [gid]
     response = await send_request(method, params)
-    return response['result']
+    return response["result"]
 
 
 async def get_status(gid):
-    method = 'aria2.tellStatus'
+    method = "aria2.tellStatus"
     params = [gid]
     response = await send_request(method, params)
-    return response['result']
+    return response["result"]
 
 
 async def list_downloads():
-    method = 'aria2.tellActive'
+    method = "aria2.tellActive"
     response = await send_request(method)
-    return response['result']
+    return response["result"]

mirrors/config.py

@@ -1,10 +1,9 @@
 import os
 
-ARIA2_RPC_URL = os.environ.get("ARIA2_RPC_URL", 'http://aria2:6800/jsonrpc')
-RPC_SECRET = os.environ.get("RPC_SECRET", '')
-BASE_DOMAIN = os.environ.get("BASE_DOMAIN", 'local.homeinfra.org')
+ARIA2_RPC_URL = os.environ.get("ARIA2_RPC_URL", "http://aria2:6800/jsonrpc")
+RPC_SECRET = os.environ.get("RPC_SECRET", "")
+BASE_DOMAIN = os.environ.get("BASE_DOMAIN", "local.homeinfra.org")
 
-PROXY = os.environ.get("PROXY", None)
 SCHEME = os.environ.get("SCHEME", None)
 assert SCHEME in ["http", "https"]
 

mirrors/proxy/direct.py

@@ -1,47 +1,73 @@
 import typing
+from typing import Callable, Coroutine
 
 import httpx
-import starlette.requests
-import starlette.responses
+from httpx import Request as HttpxRequest
+from starlette.requests import Request
+from starlette.responses import Response
 
-from config import PROXY
+SyncPreProcessor = Callable[[Request, HttpxRequest], HttpxRequest]
+
+AsyncPreProcessor = Callable[
+    [Request, HttpxRequest], Coroutine[Request, HttpxRequest, HttpxRequest]
+]
+
+SyncPostProcessor = Callable[[Request, Response], Response]
+
+AsyncPostProcessor = Callable[
+    [Request, Response], Coroutine[Request, Response, Response]
+]
 
 
 async def direct_proxy(
-        request: starlette.requests.Request,
-        target_url: str,
-        pre_process: typing.Callable[[starlette.requests.Request, httpx.Request], httpx.Request] = None,
-        post_process: typing.Callable[[starlette.requests.Request, httpx.Response], httpx.Response] = None,
-) -> typing.Optional[starlette.responses.Response]:
-    async with httpx.AsyncClient(proxy=PROXY, verify=False) as client:
-
-        headers = request.headers.mutablecopy()
-        for key in headers.keys():
+    request: Request,
+    target_url: str,
+    pre_process: typing.Union[SyncPreProcessor, AsyncPreProcessor, None] = None,
+    post_process: typing.Union[SyncPostProcessor, AsyncPostProcessor, None] = None,
+    cache_ttl: int = 3600,
+) -> Response:
+    # httpx will use the following environment variables to determine the proxy
+    # https://www.python-httpx.org/environment_variables/#http_proxy-https_proxy-all_proxy
+    async with httpx.AsyncClient() as client:
+        req_headers = request.headers.mutablecopy()
+        for key in req_headers.keys():
             if key not in ["user-agent", "accept"]:
-                del headers[key]
+                del req_headers[key]
 
-        httpx_req = client.build_request(request.method, target_url, headers=headers, )
+        httpx_req: HttpxRequest = client.build_request(
+            request.method,
+            target_url,
+            headers=req_headers,
+        )
 
         if pre_process:
-            httpx_req = pre_process(request, httpx_req)
+            new_httpx_req = pre_process(request, httpx_req)
+            if isinstance(new_httpx_req, HttpxRequest):
+                httpx_req = new_httpx_req
+            else:
+                httpx_req = await new_httpx_req
+
         upstream_response = await client.send(httpx_req)
 
-        # TODO: move to post_process
-        if upstream_response.status_code == 307:
-            location = upstream_response.headers["location"]
-            print("catch redirect", location)
+        res_headers = upstream_response.headers
 
-        headers = upstream_response.headers
-        cl = headers.pop("content-length", None)
-        ce = headers.pop("content-encoding", None)
+        cl = res_headers.pop("content-length", None)
+        ce = res_headers.pop("content-encoding", None)
         # print(target_url, cl, ce)
         content = upstream_response.content
-        response = starlette.responses.Response(
-            headers=headers,
+        response = Response(
+            headers=res_headers,
             content=content,
-            status_code=upstream_response.status_code)
+            status_code=upstream_response.status_code,
+        )
 
         if post_process:
-            response = post_process(request, response)
+            new_res = post_process(request, response)
+            if isinstance(new_res, Response):
+                final_res = new_res
+            elif isinstance(new_res, Coroutine):
+                final_res = await new_res
+        else:
+            final_res = response
 
-        return response
+        return final_res

mirrors/proxy/file_cache.py

@@ -13,17 +13,24 @@ from starlette.status import HTTP_500_INTERNAL_SERVER_ERROR, HTTP_504_GATEWAY_TI
 
 from aria2_api import add_download
 
-from config import CACHE_DIR, EXTERNAL_URL_ARIA2, PROXY
+from config import CACHE_DIR, EXTERNAL_URL_ARIA2
+from typing import Optional, Callable
 
 logger = logging.getLogger(__name__)
 
 
 def get_cache_file_and_folder(url: str) -> typing.Tuple[str, str]:
     parsed_url = urlparse(url)
+    hostname = parsed_url.hostname
+    path = parsed_url.path
+    assert hostname
+    assert path
+
     base_dir = pathlib.Path(CACHE_DIR)
     assert parsed_url.path[0] == "/"
     assert parsed_url.path[-1] != "/"
-    cache_file = (base_dir / parsed_url.hostname / parsed_url.path[1:]).resolve()
+    cache_file = (base_dir / hostname / path[1:]).resolve()
+
     assert cache_file.is_relative_to(base_dir)
 
     return str(cache_file), os.path.dirname(cache_file)
@@ -59,18 +66,18 @@ def make_cached_response(url):
 
 
 async def get_url_content_length(url):
-    async with httpx.AsyncClient(proxy=PROXY, verify=False) as client:
+    async with httpx.AsyncClient() as client:
         head_response = await client.head(url)
-        content_len = (head_response.headers.get("content-length", None))
+        content_len = head_response.headers.get("content-length", None)
         return content_len
 
 
-async def try_get_cache(
-        request: Request,
-        target_url: str,
-        download_wait_time: int = 60,
-        post_process: typing.Callable[[Request, Response], Response] = None,
-) -> typing.Optional[Response]:
+async def try_file_based_cache(
+    request: Request,
+    target_url: str,
+    download_wait_time: int = 60,
+    post_process: Optional[Callable[[Request, Response], Response]] = None,
+) -> Response:
     cache_status = lookup_cache(target_url)
     if cache_status == DownloadingStatus.DOWNLOADED:
         resp = make_cached_response(target_url)
@@ -80,21 +87,26 @@ async def try_get_cache(
 
     if cache_status == DownloadingStatus.DOWNLOADING:
         logger.info(f"Download is not finished, return 503 for {target_url}")
-        return Response(content=f"This file is downloading, view it at {EXTERNAL_URL_ARIA2}",
-                        status_code=HTTP_504_GATEWAY_TIMEOUT)
+        return Response(
+            content=f"This file is downloading, view it at {EXTERNAL_URL_ARIA2}",
+            status_code=HTTP_504_GATEWAY_TIMEOUT,
+        )
 
     assert cache_status == DownloadingStatus.NOT_FOUND
 
     cache_file, cache_file_dir = get_cache_file_and_folder(target_url)
     print("prepare to download", target_url, cache_file, cache_file_dir)
 
-    processed_url = quote(target_url, safe='/:?=&')
+    processed_url = quote(target_url, safe="/:?=&%")
 
     try:
         await add_download(processed_url, save_dir=cache_file_dir)
     except Exception as e:
         logger.error(f"Download error, return 503500 for {target_url}", exc_info=e)
-        return Response(content=f"Failed to add download: {e}", status_code=HTTP_500_INTERNAL_SERVER_ERROR)
+        return Response(
+            content=f"Failed to add download: {e}",
+            status_code=HTTP_500_INTERNAL_SERVER_ERROR,
+        )
 
     # wait for download finished
     for _ in range(download_wait_time):
@@ -103,5 +115,7 @@ async def try_get_cache(
         if cache_status == DownloadingStatus.DOWNLOADED:
             return make_cached_response(target_url)
     logger.info(f"Download is not finished, return 503 for {target_url}")
-    return Response(content=f"This file is downloading, view it at {EXTERNAL_URL_ARIA2}",
-                    status_code=HTTP_504_GATEWAY_TIMEOUT)
+    return Response(
+        content=f"This file is downloading, view it at {EXTERNAL_URL_ARIA2}",
+        status_code=HTTP_504_GATEWAY_TIMEOUT,
+    )

mirrors/server.py

@@ -1,6 +1,7 @@
 import base64
 import signal
 import urllib.parse
+from typing import Callable
 
 import httpx
 import uvicorn
@@ -9,7 +10,13 @@ from starlette.requests import Request
 from starlette.responses import RedirectResponse, Response
 from starlette.staticfiles import StaticFiles
 
-from config import BASE_DOMAIN, RPC_SECRET, EXTERNAL_URL_ARIA2, EXTERNAL_HOST_ARIA2, SCHEME
+from config import (
+    BASE_DOMAIN,
+    RPC_SECRET,
+    EXTERNAL_URL_ARIA2,
+    EXTERNAL_HOST_ARIA2,
+    SCHEME,
+)
 from sites.docker import docker
 from sites.npm import npm
 from sites.pypi import pypi
@@ -17,30 +24,45 @@ from sites.torch import torch
 
 app = FastAPI()
 
-app.mount("/aria2/", StaticFiles(directory="/wwwroot/"), name="static", )
+app.mount(
+    "/aria2/",
+    StaticFiles(directory="/wwwroot/"),
+    name="static",
+)
 
 
 async def aria2(request: Request, call_next):
     if request.url.path == "/":
         return RedirectResponse("/aria2/index.html")
     if request.url.path == "/jsonrpc":
-        async with httpx.AsyncClient(mounts={
-            "all://": httpx.AsyncHTTPTransport()
-        }) as client:
-            data = (await request.body())
-            response = await client.request(url="http://aria2:6800/jsonrpc",
-                                            method=request.method,
-                                            headers=request.headers, content=data)
+        # dont use proxy for internal API
+        async with httpx.AsyncClient(
+            mounts={"all://": httpx.AsyncHTTPTransport()}
+        ) as client:
+            data = await request.body()
+            response = await client.request(
+                url="http://aria2:6800/jsonrpc",
+                method=request.method,
+                headers=request.headers,
+                content=data,
+            )
             headers = response.headers
             headers.pop("content-length", None)
             headers.pop("content-encoding", None)
-            return Response(content=response.content, status_code=response.status_code, headers=headers)
+            return Response(
+                content=response.content,
+                status_code=response.status_code,
+                headers=headers,
+            )
     return await call_next(request)
 
 
 @app.middleware("http")
-async def capture_request(request: Request, call_next: callable):
+async def capture_request(request: Request, call_next: Callable):
     hostname = request.url.hostname
+    if not hostname:
+        return Response(content="Bad Request", status_code=400)
+
     if not hostname.endswith(f".{BASE_DOMAIN}"):
         return await call_next(request)
 
@@ -59,7 +81,7 @@ async def capture_request(request: Request, call_next: callable):
     return await call_next(request)
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     signal.signal(signal.SIGINT, signal.SIG_DFL)
     port = 80
     print(f"Server started at {SCHEME}://*.{BASE_DOMAIN})")
@@ -70,17 +92,24 @@ if __name__ == '__main__':
     aria2_secret = base64.b64encode(RPC_SECRET.encode()).decode()
 
     params = {
-        'protocol': SCHEME,
-        'host': EXTERNAL_HOST_ARIA2,
-        'port': '443' if SCHEME == 'https' else '80',
-        'interface': 'jsonrpc',
-        'secret': aria2_secret
+        "protocol": SCHEME,
+        "host": EXTERNAL_HOST_ARIA2,
+        "port": "443" if SCHEME == "https" else "80",
+        "interface": "jsonrpc",
+        "secret": aria2_secret,
     }
 
     query_string = urllib.parse.urlencode(params)
     aria2_url_with_auth = EXTERNAL_URL_ARIA2 + "#!/settings/rpc/set?" + query_string
 
     print(f"Download manager (Aria2) at {aria2_url_with_auth}")
-    # FIXME: only proxy headers if SCHME is https
+    # FIXME: only proxy headers if SCHEME is https
     # reload only in dev mode
-    uvicorn.run(app="server:app", host="0.0.0.0", port=port, reload=True, proxy_headers=True, forwarded_allow_ips="*")
+    uvicorn.run(
+        app="server:app",
+        host="0.0.0.0",
+        port=port,
+        reload=True,
+        proxy_headers=True,
+        forwarded_allow_ips="*",
+    )

mirrors/sites/docker.py

@@ -2,18 +2,18 @@ import base64
 import json
 import re
 import time
+from typing import Dict
 
 import httpx
 from starlette.requests import Request
 from starlette.responses import Response
 
+from proxy.file_cache import try_file_based_cache
 from proxy.direct import direct_proxy
 
 BASE_URL = "https://registry-1.docker.io"
 
-cached_token = {
-
-}
+cached_token: Dict[str, str] = {}
 
 # https://github.com/opencontainers/distribution-spec/blob/main/spec.md
 name_regex = "[a-z0-9]+((\.|_|__|-+)[a-z0-9]+)*(\/[a-z0-9]+((\.|_|__|-+)[a-z0-9]+)*)*"
@@ -38,7 +38,6 @@ def try_extract_image_name(path):
 def get_docker_token(name):
     cached = cached_token.get(name, {})
     exp = cached.get("exp", 0)
-
     if exp > time.time():
         return cached.get("token", 0)
 
@@ -48,12 +47,13 @@ def get_docker_token(name):
         "service": "registry.docker.io",
     }
 
-    response = httpx.get(url, params=params, verify=False)
+    client = httpx.Client()
+    response = client.get(url, params=params)
     response.raise_for_status()
 
     token_data = response.json()
     token = token_data["token"]
-    payload = (token.split(".")[1])
+    payload = token.split(".")[1]
     padding = len(payload) % 4
     payload += "=" * padding
 
@@ -61,14 +61,27 @@ def get_docker_token(name):
     assert payload["iss"] == "auth.docker.io"
     assert len(payload["access"]) > 0
 
-    cached_token[name] = {
-        "exp": payload["exp"],
-        "token": token
-    }
+    cached_token[name] = {"exp": payload["exp"], "token": token}
 
     return token
 
 
+def inject_token(name: str, req: Request, httpx_req: httpx.Request):
+    docker_token = get_docker_token(f"{name}")
+    httpx_req.headers["Authorization"] = f"Bearer {docker_token}"
+    return httpx_req
+
+
+async def post_process(request: Request, response: Response):
+    if response.status_code == 307:
+        location = response.headers["location"]
+        # TODO: logger
+        print("[redirect]", location)
+        return await try_file_based_cache(request, location)
+
+    return response
+
+
 async def docker(request: Request):
     path = request.url.path
     print("[request]", request.method, request.url)
@@ -82,19 +95,20 @@ async def docker(request: Request):
     name, operation, reference = try_extract_image_name(path)
 
     if not name:
-        return Response(content='404 Not Found', status_code=404)
+        return Response(content="404 Not Found", status_code=404)
 
     # support docker pull xxx which name without library
-    if '/' not in name:
+    if "/" not in name:
         name = f"library/{name}"
 
     target_url = BASE_URL + f"/v2/{name}/{operation}/{reference}"
 
-    print('[PARSED]', path, name, operation, reference, target_url)
+    # logger
+    print("[PARSED]", path, name, operation, reference, target_url)
 
-    def inject_token(req, httpx_req):
-        docker_token = get_docker_token(f"{name}")
-        httpx_req.headers["Authorization"] = f"Bearer {docker_token}"
-        return httpx_req
-
-    return await direct_proxy(request, target_url, pre_process=inject_token)
+    return await direct_proxy(
+        request,
+        target_url,
+        pre_process=lambda req, http_req: inject_token(name, req, http_req),
+        post_process=post_process,
+    )

mirrors/sites/pypi.py

@@ -4,7 +4,7 @@ from starlette.requests import Request
 from starlette.responses import Response
 
 from proxy.direct import direct_proxy
-from proxy.cached import try_get_cache
+from proxy.file_cache import try_file_based_cache
 
 pypi_file_base_url = "https://files.pythonhosted.org"
 pypi_base_url = "https://pypi.org"
@@ -39,6 +39,6 @@ async def pypi(request: Request) -> Response:
         return Response(content="Not Found", status_code=404)
 
     if path.endswith(".whl") or path.endswith(".tar.gz"):
-        return await try_get_cache(request, target_url)
+        return await try_file_based_cache(request, target_url)
 
     return await direct_proxy(request, target_url, post_process=pypi_replace)

mirrors/sites/torch.py

@@ -1,7 +1,7 @@
 from starlette.requests import Request
 from starlette.responses import Response
 
-from proxy.cached import try_get_cache
+from proxy.file_cache import try_file_based_cache
 from proxy.direct import direct_proxy
 
 BASE_URL = "https://download.pytorch.org"
@@ -19,6 +19,9 @@ async def torch(request: Request):
     target_url = BASE_URL + path
 
     if path.endswith(".whl") or path.endswith(".tar.gz"):
-        return await try_get_cache(request, target_url)
+        return await try_file_based_cache(request, target_url)
 
-    return await direct_proxy(request, target_url, )
+    return await direct_proxy(
+        request,
+        target_url,
+    )