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feat: resolve blake3 hashes in /view endpoint via asset database

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Amp-Thread-ID: https://ampcode.com/threads/T-019cda7d-cb21-77b4-a51b-b965af60208c
Co-authored-by: Amp <amp@ampcode.com>
This commit is contained in:
Luke Mino-Altherr
2026-03-10 18:31:05 -07:00
parent 8c72d6f15a
commit 2bb791280d
1 changed files with 50 additions and 18 deletions
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68
server.py
View File

@@ -479,30 +479,37 @@ class PromptServer():
async def view_image(request):
if "filename" in request.rel_url.query:
filename = request.rel_url.query["filename"]
filename, output_dir = folder_paths.annotated_filepath(filename)
if not filename:
return web.Response(status=400)
# If the filename is a blake3 hash, resolve it via the asset database
if filename.startswith("blake3:"):
file, filename = self._resolve_blake3_to_path(filename)
if file is None:
return web.Response(status=404)
else:
filename, output_dir = folder_paths.annotated_filepath(filename)
# validation for security: prevent accessing arbitrary path
if filename[0] == '/' or '..' in filename:
return web.Response(status=400)
if not filename:
return web.Response(status=400)
if output_dir is None:
type = request.rel_url.query.get("type", "output")
output_dir = folder_paths.get_directory_by_type(type)
# validation for security: prevent accessing arbitrary path
if filename[0] == '/' or '..' in filename:
return web.Response(status=400)
if output_dir is None:
return web.Response(status=400)
if output_dir is None:
type = request.rel_url.query.get("type", "output")
output_dir = folder_paths.get_directory_by_type(type)
if "subfolder" in request.rel_url.query:
full_output_dir = os.path.join(output_dir, request.rel_url.query["subfolder"])
if os.path.commonpath((os.path.abspath(full_output_dir), output_dir)) != output_dir:
return web.Response(status=403)
output_dir = full_output_dir
if output_dir is None:
return web.Response(status=400)
filename = os.path.basename(filename)
file = os.path.join(output_dir, filename)
if "subfolder" in request.rel_url.query:
full_output_dir = os.path.join(output_dir, request.rel_url.query["subfolder"])
if os.path.commonpath((os.path.abspath(full_output_dir), output_dir)) != output_dir:
return web.Response(status=403)
output_dir = full_output_dir
filename = os.path.basename(filename)
file = os.path.join(output_dir, filename)
if os.path.isfile(file):
if 'preview' in request.rel_url.query:
@@ -995,6 +1002,31 @@ class PromptServer():
timeout = aiohttp.ClientTimeout(total=None) # no timeout
self.client_session = aiohttp.ClientSession(timeout=timeout)
def _resolve_blake3_to_path(self, asset_hash: str) -> tuple[str | None, str]:
"""Resolve a blake3 hash to an absolute file path via the asset database.
Returns (abs_path, display_filename) or (None, "") if not found.
"""
from app.database.db import create_session
from app.assets.database.queries import get_asset_by_hash, list_references_by_asset_id
from app.assets.helpers import select_best_live_path
with create_session() as session:
asset = get_asset_by_hash(session, asset_hash)
if not asset:
return None, ""
refs = list_references_by_asset_id(session, asset_id=asset.id)
abs_path = select_best_live_path(refs)
if not abs_path:
return None, ""
display_name = os.path.basename(abs_path)
# Prefer the reference name if available
for ref in refs:
if ref.file_path == abs_path and ref.name:
display_name = ref.name
break
return abs_path, display_name
def add_routes(self):
self.user_manager.add_routes(self.routes)
self.model_file_manager.add_routes(self.routes)