# Path: src/bepasty/constants.py
# ID = 'id'  # storage name
# 
# TIMESTAMP_UPLOAD = 'timestamp-upload'
# 
# Path: src/bepasty/utils/date_funcs.py
# def delete_if_lifetime_over(item, name):
#     """
#     :return: True if file was deleted
#     """
#     if 0 < item.meta[TIMESTAMP_MAX_LIFE] < time.time():
#         try:
#             current_app.storage.remove(name)
#         except OSError:
#             pass
#         return True
#     return False
# 
# Path: src/bepasty/utils/permissions.py
# LIST = 'list'
# 
# def may(permission):
#     """
#     check whether the current user has the permission <permission>
#     """
#     return permission in flaskg.permissions


import errno
import pickle
from flask import current_app, render_template
from flask.views import MethodView
from werkzeug.exceptions import Forbidden
from ..constants import ID, TIMESTAMP_UPLOAD
from ..utils.date_funcs import delete_if_lifetime_over
from ..utils.permissions import LIST, may
    :param names: None means "all items"
                  otherwise give a list of storage item names
    """
    storage = current_app.storage
    if names is None:
        names = list(storage)
    for name in names:
        try:
            with storage.open(name) as item:
                meta = dict(item.meta)
                if not meta:
                    # we got empty metadata, this happens for 0-byte .meta files.
                    # ignore it for now.
                    continue
                if delete_if_lifetime_over(item, name):
                    continue
                meta[ID] = name
                yield meta
        except OSError as e:
            if e.errno != errno.ENOENT:
                raise
        except pickle.UnpicklingError:
            # corrupted meta file, just ignore it for now
            pass


class FileListView(MethodView):
    def get(self):
        if not may(LIST):
            raise Forbidden()

# Path: src/bepasty/constants.py
# ID = 'id'  # storage name
# 
# TIMESTAMP_UPLOAD = 'timestamp-upload'
# 
# Path: src/bepasty/utils/date_funcs.py
# def delete_if_lifetime_over(item, name):
#     """
#     :return: True if file was deleted
#     """
#     if 0 < item.meta[TIMESTAMP_MAX_LIFE] < time.time():
#         try:
#             current_app.storage.remove(name)
#         except OSError:
#             pass
#         return True
#     return False
# 
# Path: src/bepasty/utils/permissions.py
# LIST = 'list'
# 
# def may(permission):
#     """
#     check whether the current user has the permission <permission>
#     """
#     return permission in flaskg.permissions


# Path: src/bepasty/views/filelist.py
import errno
import pickle
from flask import current_app, render_template
from flask.views import MethodView
from werkzeug.exceptions import Forbidden
from ..constants import ID, TIMESTAMP_UPLOAD
from ..utils.date_funcs import delete_if_lifetime_over
from ..utils.permissions import LIST, may

    :param names: None means "all items"
                  otherwise give a list of storage item names
    """
    storage = current_app.storage
    if names is None:
        names = list(storage)
    for name in names:
        try:
            with storage.open(name) as item:
                meta = dict(item.meta)
                if not meta:
                    # we got empty metadata, this happens for 0-byte .meta files.
                    # ignore it for now.
                    continue
                if delete_if_lifetime_over(item, name):
                    continue
                meta[ID] = name
                yield meta
        except OSError as e:
            if e.errno != errno.ENOENT:
                raise
        except pickle.UnpicklingError:
            # corrupted meta file, just ignore it for now
            pass


class FileListView(MethodView):
    def get(self):
        if not may(LIST):
            raise Forbidden()

        files = sorted(file_infos(), key=lambda f: f[TIMESTAMP_UPLOAD], reverse=True)