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content.py
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content.py
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# Copyright (C) 2022 The Software Heritage developers
# See the AUTHORS file at the top-level directory of this distribution
# License: GNU General Public License version 3, or any later version
# See top-level LICENSE file for more information
from typing import Union
from swh.graphql.backends import archive
from .base_node import BaseSWHNode
from .directory_entry import DirectoryEntryNode
from .release import BaseReleaseNode
from .snapshot_branch import BaseSnapshotBranchNode
class BaseContentNode(BaseSWHNode):
"""
Base resolver for all the content nodes
"""
def _get_content_by_hash(self, checksums: dict):
content = archive.Archive().get_contents(checksums)
# in case of a conflict, return the first element
return content[0] if content else None
@property
def checksum(self):
# FIXME, use a Node instead
return {k: v.hex() for (k, v) in self._node.hashes().items()}
@property
def id(self):
return self._node.sha1_git
@property
def data(self):
# FIXME, return a Node object
# FIXME, add more ways to retrieve data like binary string
archive_url = "https://archive.softwareheritage.org/api/1/"
content_sha1 = self._node.hashes()["sha1"]
return {
"url": f"{archive_url}content/sha1:{content_sha1.hex()}/raw/",
}
@property
def fileType(self):
# FIXME, fetch data from the indexers
return None
@property
def language(self):
# FIXME, fetch data from the indexers
return None
@property
def license(self):
# FIXME, fetch data from the indexers
return None
def is_type_of(self):
# is_type_of is required only when resolving a UNION type
# This is for ariadne to return the right type
return "Content"
class ContentNode(BaseContentNode):
"""
Node resolver for a content requested directly with its SWHID
"""
def _get_node_data(self):
checksums = {"sha1_git": self.kwargs.get("swhid").object_id}
return self._get_content_by_hash(checksums)
class HashContentNode(BaseContentNode):
"""
Node resolver for a content requested with one or more checksums
"""
def _get_node_data(self):
checksums = dict(self.kwargs.get("checksums"))
return self._get_content_by_hash(checksums)
class TargetContentNode(BaseContentNode):
"""
Node resolver for a content requested as a target
This request could be from directory entry, release or a branch
"""
obj: Union[DirectoryEntryNode, BaseReleaseNode, BaseSnapshotBranchNode]
def _get_node_data(self):
return self._get_content_by_hash(checksums={"sha1_git": self.obj.target_hash})

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