fix(Drive Team): KeyError when session user casing differs from team members

[PatrickDEissler]

Problem

When users tried to open a Drive Team, they got a server error and following Error Log was created:

Traceback with variables (most recent call last):
  File "apps/frappe/frappe/app.py", line 120, in application
    response = frappe.api.handle(request)
      request = <Request 'https://service.example.com/api/method/drive.api.list.files?team=h7ohp1a1r9&order_by=modified+0&personal=0' [GET]>
      response = None
      rollback = True
      e = KeyError('user@example.com')
  File "apps/frappe/frappe/api/__init__.py", line 52, in handle
    data = endpoint(**arguments)
      request = <Request 'https://service.example.com/api/method/drive.api.list.files?team=h7ohp1a1r9&order_by=modified+0&personal=0' [GET]>
      endpoint = <function handle_rpc_call at 0x7a2dc7d76f20>
      arguments = {'method': 'drive.api.list.files'}
  File "apps/frappe/frappe/api/v1.py", line 40, in handle_rpc_call
    return frappe.handler.handle()
      method = 'drive.api.list.files'
      frappe = <module 'frappe' from 'apps/frappe/frappe/__init__.py'>
  File "apps/frappe/frappe/handler.py", line 53, in handle
    data = execute_cmd(cmd)
      cmd = 'drive.api.list.files'
      data = None
  File "apps/frappe/frappe/handler.py", line 86, in execute_cmd
    return frappe.call(method, **frappe.form_dict)
      cmd = 'drive.api.list.files'
      from_async = False
      server_script = None
      method = <function files at 0x7a2da9513880>
  File "apps/frappe/frappe/__init__.py", line 1758, in call
    return fn(*args, **newargs)
      fn = <function files at 0x7a2da9513880>
      args = ()
      kwargs = {'team': 'h7ohp1a1r9', 'order_by': 'modified 0', 'personal': '0', 'cmd': 'drive.api.list.files'}
      newargs = {'team': 'h7ohp1a1r9', 'order_by': 'modified 0'}
  File "apps/frappe/frappe/utils/typing_validations.py", line 32, in wrapper
    return func(*args, **kwargs)
      args = ()
      kwargs = {'team': 'h7ohp1a1r9', 'order_by': 'modified 0'}
      apply_condition = <function whitelist.<locals>.innerfn.<locals>.<lambda> at 0x7a2da9511440>
      func = <function files at 0x7a2da9510900>
  File "apps/drive/drive/utils/__init__.py", line 375, in wrapper
    return func(*args, **kwargs)
      args = ()
      kwargs = {'team': 'h7ohp1a1r9', 'order_by': 'modified 0'}
      sig = <Signature (team, entity_name=None, order_by='modified 1', is_active=1, limit=20, cursor=None, favourites_only=0, recents_only=0, shared=None, tag_list=[], file_kinds=[], folders=0, only_parent=1, search=None)>
      bound_args = <BoundArguments (team='h7ohp1a1r9', entity_name=None, order_by='modified 0', is_active=1, limit=20, cursor=None, favourites_only=0, recents_only=0, shared=None, tag_list=[], file_kinds=[], folders=0, only_parent=1, search=None)>
      func = <function files at 0x7a2da95107c0>
  File "apps/drive/drive/api/list.py", line 73, in files
    user_access = get_user_access(entity, user)
      team = 'h7ohp1a1r9'
      entity_name = 'h7ptmos68a'
      order_by = 'modified 0'
      is_active = 1
      limit = 20
      cursor = None
      favourites_only = 0
      recents_only = 0
      shared = None
      tag_list = []
      file_kinds = []
      folders = 0
      only_parent = 1
      search = None
      field = '_modified'
      ascending = 0
      all_teams = False
      user = 'user@example.com'
      entity = <DriveFile: h7ptmos68a>
  File "apps/frappe/frappe/utils/typing_validations.py", line 32, in wrapper
    return func(*args, **kwargs)
      args = [<DriveFile: h7ptmos68a>, 'user@example.com']
      kwargs = {}
      apply_condition = <function whitelist.<locals>.innerfn.<locals>.<lambda> at 0x7a2dad7cc9a0>
      func = <function get_user_access at 0x7a2dad7cc900>
  File "apps/drive/drive/api/permissions.py", line 73, in get_user_access
    access_level = get_access_level(entity.team)
      entity = <DriveFile: h7ptmos68a>
      user = 'user@example.com'
      team = False
      access = {'read': 0, 'comment': 0, 'share': 0, 'write': 0, 'upload': 0}
      teams = ['h7ohp1a1r9', 'oiokp03jdg']
  File "apps/drive/drive/api/permissions.py", line 114, in get_access_level
    return drive_team[frappe.session.user].access_level
      team = 'h7ohp1a1r9'
      drive_team = {'member1@domain.com': <DriveTeamMember: tvl8knrf8m parent=h7ohp1a1r9>, 'member2@domain.com': <DriveTeamMember: tvldcd7atm parent=h7ohp1a1r9>, 'member3@domain.com': <DriveTeamMember: tvln5t5pc4 parent=h7ohp1a1r9> ... }
builtins.KeyError: 'user@example.com'

NOTE: I manually anonymised this Error Log with dummy email addresses and a dummy URL.

[safwansamsudeen]

@PatrickDEissler can this be closed?