def _generate_public_access_policy_pyxb(self): access_policy_pyxb = v2.AccessPolicy() access_rule_pyxb = v2.AccessRule() access_rule_pyxb.permission = [v2.Permission.read, ] access_rule_pyxb.subject = ["public", ] access_policy_pyxb.allow = [access_rule_pyxb, ] return access_policy_pyxb
def _generate_sysmeta(self, scimeta_str, pid, sid, record_datetime):
sysmeta_pyxb = v2.systemMetadata()
sysmeta_pyxb.seriesId = sid
sysmeta_pyxb.formatId = self.node_dict['sci_md_formatId']
sysmeta_pyxb.size = len(scimeta_str)
sysmeta_pyxb.checksum = d1_common.checksum.create_checksum_object_from_string(
scimeta_str
)
sysmeta_pyxb.identifier = pid
# sysmeta_pyxb.dateUploaded = datetime.datetime.strptime(record_datetime, "%Y-%m-%dT%H:%M:%SZ")
sysmeta_pyxb.dateUploaded = record_datetime
sysmeta_pyxb.dateSysMetadataModified = datetime.datetime.now()
sysmeta_pyxb.rightsHolder = self.node_dict['rightsholder']
sysmeta_pyxb.submitter = self.node_dict['submitter']
sysmeta_pyxb.authoritativeMemberNode = self.node_dict['authoritativeMN']
sysmeta_pyxb.originMemberNode = self.node_dict['originMN']
# Access policies for SlenderNode design pattern default to public read only
accessPolicy = v2.AccessPolicy()
accessRule = v2.AccessRule()
accessRule.subject.append(d1_common.const.SUBJECT_PUBLIC)
permission = v2.Permission('read')
accessRule.permission.append(permission)
accessPolicy.append(accessRule)
sysmeta_pyxb.accessPolicy = accessPolicy
return sysmeta_pyxb
def generate_public_access_policy(self):
accessPolicy = dataoneTypes.accessPolicy()
accessRule = dataoneTypes.AccessRule()
accessRule.subject.append(d1_common.const.SUBJECT_PUBLIC)
permission = dataoneTypes.Permission('read')
accessRule.permission.append(permission)
accessPolicy.append(accessRule)
return accessPolicy
def _generate_public_access_policy():
"""This function generates an access policy which is needed as part of system metadata for describing a science
metadata object. In an adapter-based implementation, the ability to modify records is managed by the native
repository, not GMN, and any changes in the native repository simple cascade down to GMN. This means it is
unnecessary to set specific access policies for individual records. Therefore, a generic public read-only access
policy is generated and assigned as part of system metadata to every record as it is loaded."""
accessPolicy = v2.AccessPolicy()
accessRule = v2.AccessRule()
accessRule.subject.append(d1_common.const.SUBJECT_PUBLIC)
permission = v2.Permission('read')
accessRule.permission.append(permission)
accessPolicy.append(accessRule)
return accessPolicy
def build_sysmeta(pid=None, obj=None, fmt=None, sid=None):
if pid is None:
return 1
if obj is None:
return 1
if fmt is None:
fmt = 'application/octet-stream'
obj_size = os.path.getsize(obj)
obj_md5 = md5(obj)
accessPolicy = dataoneTypes_v2_0.accessPolicy()
accessRule = dataoneTypes_v2_0.AccessRule()
accessRule.subject.append('gmn-local')
accessRule.permission.append('changePermission')
accessPolicy.append(accessRule)
accessRule = dataoneTypes_v2_0.AccessRule()
accessRule.subject.append('public')
accessRule.permission.append('read')
accessPolicy.append(accessRule)
d1_sys_meta = dataoneTypes_v2_0.systemMetadata()
d1_sys_meta.serialVersion = 1
d1_sys_meta.identifier = pid
d1_sys_meta.size = obj_size
d1_sys_meta.formatId = fmt
d1_sys_meta.rightsHolder = 'gmn-local'
d1_sys_meta.checksum = obj_md5
d1_sys_meta.checksum.algorithm = 'MD5'
d1_sys_meta.accessPolicy = accessPolicy
if sid is not None:
d1_sys_meta.seriesId = sid
return d1_sys_meta
