Files
mdrs-client-python/mdrsclient/services.py
T
orrisroot 4c9954c1fd fix: clear the type checker and linter findings
flake8 reported 49 findings and pyright 10, and two of them were real
bugs rather than matters of style. The rest were unused imports and
four functions over the complexity limit.

- Unlock a DOI folder with the id the DOI response carries, rather
  than an attribute the model does not have, which raised
  `AttributeError` on every locked DOI folder.
- Size the `ls` Size column from the sub-folder on the row rather than
  from its parent, which pushed the later columns out of line.
- Share the path resolution and the destination checks between `cp`
  and `mv`, and split the recursive download and the `ls` row
  printing, bringing all four functions under the complexity limit.
- Accept a client built without a connection, which `config` and
  `version` rely on, and report the reason if one is then asked for.
- Declare the config protocol's constructor for the type checker
  alone, so the protocol keeps its guard against being instantiated.
- Remove 41 unused imports, and let flake8 accept black's spacing.
- Point pyright at the project's own environment, without which it
  resolved no dependency and reported 124 findings that were not real.
- Cover the two fixes and the shared `cp`/`mv` paths with new tests.
2026-09-04 18:23:17 +09:00

252 lines
10 KiB
Python

import os
import re
from unicodedata import normalize
from mdrsclient.api import DoiApi, FilesApi, FoldersApi, LaboratoriesApi, UsersApi
from mdrsclient.cache import CacheInterface
from mdrsclient.config import ConfigFile, ConfigInterface
from mdrsclient.connection import MDRSConnection
from mdrsclient.exceptions import (
IllegalArgumentException,
MissingConfigurationException,
UnauthorizedException,
UnexpectedException,
)
from mdrsclient.models import File, Folder, Laboratory, Token, User
from mdrsclient.utils import page_num_from_url
class MdrsService:
config_class: type[ConfigInterface] = ConfigFile
def __init__(self, connection: MDRSConnection | None, config_class: type[ConfigInterface] | None = None):
self.__connection = connection
if config_class is not None:
self.config_class = config_class
@property
def connection(self) -> MDRSConnection:
"""
The connection every remote operation goes through.
Optional to supply, because `config` and `version` do their work without a remote
and are reached through the same client. Asking for it when none was given is a
mistake in the caller, and says so rather than failing later on `None`.
"""
if self.__connection is None:
raise MissingConfigurationException("This operation requires a remote host.")
return self.__connection
@connection.setter
def connection(self, connection: MDRSConnection | None) -> None:
# Assignable as it always was: this is a property to check for absence on read,
# not to make the connection fixed once the client is built.
self.__connection = connection
@classmethod
def create_connection(
cls, remote: str, cache: CacheInterface | None = None, config: ConfigInterface | None = None
) -> MDRSConnection:
if config is None:
config = ConfigFile(remote)
elif config.remote != remote:
raise IllegalArgumentException("Remote host parameter mismatch.")
if config.url is None:
raise MissingConfigurationException(f"Remote host `{remote}` is not found.")
return MDRSConnection(config.remote, config.url, cache=cache)
def login(self, username: str, password: str) -> tuple[Token, User]:
user_api = UsersApi(self.connection)
token = user_api.token(username, password)
self.connection.token = token
user = user_api.current()
self.connection.user = user
return token, user
def logout(self) -> None:
self.connection.logout()
def whoami(self) -> User:
user_api = UsersApi(self.connection)
return user_api.current()
def get_laboratories(self) -> list[Laboratory]:
laboratory_api = LaboratoriesApi(self.connection)
labs = laboratory_api.list()
self.connection.laboratories = labs
return list(labs)
def find_laboratory(self, name: str) -> Laboratory:
if self.connection.laboratories.empty() or (self.connection.token and self.connection.token.is_expired):
self.get_laboratories()
laboratory = self.connection.laboratories.find_by_name(name)
if laboratory is None:
raise IllegalArgumentException(f"Laboratory `{name}` not found.")
return laboratory
def find_folder(self, laboratory: Laboratory, path: str, password: str | None = None) -> Folder:
folder_api = FoldersApi(self.connection)
folders = folder_api.list(laboratory.id, normalize("NFC", path))
if len(folders) != 1:
raise UnexpectedException(f"Folder `{path}` not found.")
if folders[0].lock:
if password is None:
raise UnauthorizedException(f"Folder `{path}` is locked.")
folder_api.auth(folders[0].id, password)
return folder_api.retrieve(folders[0].id)
def find_files(self, folder_id: str) -> list[File]:
files_api = FilesApi(self.connection)
page = 1
results_file = []
while page:
result = files_api.list(folder_id, page)
results_file.extend(result.results)
page = 0
if result.next:
page = page_num_from_url(result.next)
return results_file
@staticmethod
def is_doi(path_component: str) -> bool:
return path_component.startswith("10.") and "/" in path_component
@staticmethod
def doi_suffix_id(doi: str) -> str:
doi = doi.rstrip("/")
slash_pos = doi.find("/")
if slash_pos == -1:
return doi
suffix = doi[slash_pos + 1 :]
dot_pos = suffix.rfind(".")
return suffix[dot_pos + 1 :] if dot_pos != -1 else suffix
@staticmethod
def split_doi_and_subpath(doi_with_path: str) -> tuple[str, str]:
first_slash = doi_with_path.find("/")
if first_slash != -1:
after_suffix_start = first_slash + 1
after_first = doi_with_path[after_suffix_start:]
second_slash = after_first.find("/")
if second_slash != -1:
doi_end = after_suffix_start + second_slash
doi = doi_with_path[:doi_end]
subpath = doi_with_path[doi_end:]
if subpath == "/":
return (doi, "")
else:
return (doi, subpath)
else:
return (doi_with_path, "")
else:
return (doi_with_path, "")
@classmethod
def parse_remote_host(cls, path: str) -> str:
path_array = path.split(":")
remote_host = path_array[0]
if len(path_array) == 2 and path_array[1] != "" or len(path_array) > 2:
raise IllegalArgumentException("Invalid remote host")
return remote_host
@classmethod
def parse_remote_host_with_path(cls, path: str) -> tuple[str, str, str]:
path = re.sub(r"//+|/\./+|/\.$", "/", path)
if re.search(r"/\.\./|/\.\.$", path) is not None:
raise IllegalArgumentException("Path traversal found.")
path_array = path.split(":")
if len(path_array) != 2:
raise IllegalArgumentException("Invalid remote host.")
remote_host = path_array[0]
folder_array = path_array[1].split("/")
is_absolute_path = folder_array[0] == ""
if not is_absolute_path:
raise IllegalArgumentException("Must be absolute paths.")
del folder_array[0]
if len(folder_array) == 0:
laboratory = ""
folder = ""
else:
laboratory = folder_array.pop(0)
folder = "/" + "/".join(folder_array)
return (remote_host, laboratory, folder)
@classmethod
def parse_doi_remote_host(cls, path: str) -> tuple[str, str, str]:
parts = path.split(":", 1)
if len(parts) != 2:
raise IllegalArgumentException("remote_path must be in the form 'remote:10.xxxx/prefix.ID'")
remote, doi_with_path = parts
if not cls.is_doi(doi_with_path):
raise IllegalArgumentException(f"Path `{doi_with_path}` does not look like a DOI.")
doi, subpath = cls.split_doi_and_subpath(doi_with_path)
return (remote, doi, subpath)
def find_folder_by_doi(self, doi: str, password: str | None = None) -> tuple[Folder, Laboratory]:
doi_clean = doi.rstrip("/")
doi_id = self.doi_suffix_id(doi_clean)
doi_api = DoiApi(self.connection)
doi_resp = doi_api.retrieve(doi_id)
returned_doi = doi_resp.doi.rstrip("/")
if returned_doi.lower() != doi_clean.lower():
raise IllegalArgumentException(
f"DOI mismatch: requested `{doi_clean}` but server returned `{returned_doi}`."
)
folder_api = FoldersApi(self.connection)
folder = folder_api.retrieve(doi_resp.folder_id)
if folder.lock:
if password is None:
raise UnauthorizedException(f"Folder for DOI `{doi_clean}` is locked.")
folder_api.auth(doi_resp.folder_id, password)
lab_api = LaboratoriesApi(self.connection)
labs = lab_api.list()
lab = labs.find_by_id(folder.laboratory_id)
if lab is None:
raise UnexpectedException(f"Laboratory with id {folder.laboratory_id} not found.")
self.connection.laboratories = labs
return (folder, lab)
def resolve_folder(self, remote_path: str, password: str | None = None) -> tuple[Folder, Laboratory]:
path_component = remote_path.split(":", 1)[1] if ":" in remote_path else ""
if self.is_doi(path_component):
remote, doi, subpath = self.parse_doi_remote_host(remote_path)
doi_folder, laboratory = self.find_folder_by_doi(doi, password)
if not subpath:
return (doi_folder, laboratory)
else:
abs_path = doi_folder.path.rstrip("/") + subpath
folder = self.find_folder(laboratory, abs_path, password)
return (folder, laboratory)
else:
remote, laboratory_name, r_path = self.parse_remote_host_with_path(remote_path)
laboratory = self.find_laboratory(laboratory_name)
folder = self.find_folder(laboratory, r_path, password)
return (folder, laboratory)
def resolve_file(self, remote_path: str, password: str | None = None) -> tuple[Folder, Laboratory, str]:
path_component = remote_path.split(":", 1)[1] if ":" in remote_path else ""
if self.is_doi(path_component):
remote, doi, subpath = self.parse_doi_remote_host(remote_path)
doi_folder, laboratory = self.find_folder_by_doi(doi, password)
subpath_clean = subpath.rstrip("/")
if not subpath_clean:
raise IllegalArgumentException("DOI path must point to a file, not a folder.")
r_dirname = os.path.dirname(subpath_clean)
r_basename = os.path.basename(subpath_clean)
abs_path = doi_folder.path.rstrip("/") + r_dirname
parent_folder = self.find_folder(laboratory, abs_path, password)
return (parent_folder, laboratory, r_basename)
else:
remote, laboratory_name, r_path = self.parse_remote_host_with_path(remote_path)
r_path = r_path.rstrip("/")
r_dirname = os.path.dirname(r_path)
r_basename = os.path.basename(r_path)
laboratory = self.find_laboratory(laboratory_name)
parent_folder = self.find_folder(laboratory, r_dirname, password)
return (parent_folder, laboratory, r_basename)