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from typing import Any, Dict, List, Optional, Union, cast
from szurubooru import errors, model
from szurubooru.func import file_uploads, net
MISSING = object()
Request = Dict[str, Any]
Response = Optional[Dict[str, Any]]
class Context:
def __init__(
self,
env: Dict[str, Any],
method: str,
url: str,
headers: Dict[str, str] = None,
params: Request = None,
files: Dict[str, bytes] = None,
) -> None:
self.env = env
self.method = method
self.url = url
self._headers = headers or {}
self._params = params or {}
self._files = files or {}
self.user = model.User()
self.user.name = None
self.user.rank = "anonymous"
self.session = None # type: Any
def has_header(self, name: str) -> bool:
return name in self._headers
def get_header(self, name: str) -> str:
return self._headers.get(name, "")
def has_file(self, name: str, allow_tokens: bool = True) -> bool:
return (
name in self._files
or name + "Url" in self._params
or (allow_tokens and name + "Token" in self._params)
)
def get_file(
self,
name: str,
default: Union[object, bytes] = MISSING,
use_video_downloader: bool = False,
allow_tokens: bool = True,
) -> bytes:
if name in self._files and self._files[name]:
return self._files[name]
if name + "Url" in self._params:
return net.download(
self._params[name + "Url"],
use_video_downloader=use_video_downloader,
)
if allow_tokens and name + "Token" in self._params:
ret = file_uploads.get(self._params[name + "Token"])
if ret:
return ret
elif default is not MISSING:
raise errors.MissingOrExpiredRequiredFileError(
"Required file %r is missing or has expired." % name
)
if default is not MISSING:
return cast(bytes, default)
raise errors.MissingRequiredFileError(
"Required file %r is missing." % name
)
def has_param(self, name: str) -> bool:
return name in self._params
def get_param(self, name: str) -> Any:
return self._params[name]
def get_param_as_list(
self, name: str, default: Union[object, List[Any]] = MISSING
) -> List[Any]:
if name not in self._params:
if default is not MISSING:
return cast(List[Any], default)
raise errors.MissingRequiredParameterError(
"Required parameter %r is missing." % name
)
value = self._params[name]
if type(value) is str:
if "," in value:
return value.split(",")
return [value]
if type(value) is list:
return value
raise errors.InvalidParameterError(
"Parameter %r must be a list." % name
)
def get_param_as_int_list(
self, name: str, default: Union[object, List[int]] = MISSING
) -> List[int]:
ret = self.get_param_as_list(name, default)
for item in ret:
if type(item) is not int:
raise errors.InvalidParameterError(
"Parameter %r must be a list of integer values." % name
)
return ret
def get_param_as_string_list(
self, name: str, default: Union[object, List[str]] = MISSING
) -> List[str]:
ret = self.get_param_as_list(name, default)
for item in ret:
if type(item) is not str:
raise errors.InvalidParameterError(
"Parameter %r must be a list of string values." % name
)
return ret
def get_param_as_string(
self, name: str, default: Union[object, str] = MISSING
) -> str:
if name not in self._params:
if default is not MISSING:
return cast(str, default)
raise errors.MissingRequiredParameterError(
"Required parameter %r is missing." % name
)
value = self._params[name]
try:
if value is None:
return ""
if type(value) is list:
return ",".join(value)
if type(value) is int or type(value) is float:
return str(value)
if type(value) is str:
return value
except TypeError:
pass
raise errors.InvalidParameterError(
"Parameter %r must be a string value." % name
)
def get_param_as_int(
self,
name: str,
default: Union[object, int] = MISSING,
min: Optional[int] = None,
max: Optional[int] = None,
) -> int:
if name not in self._params:
if default is not MISSING:
return cast(int, default)
raise errors.MissingRequiredParameterError(
"Required parameter %r is missing." % name
)
value = self._params[name]
try:
value = int(value)
if min is not None and value < min:
raise errors.InvalidParameterError(
"Parameter %r must be at least %r." % (name, min)
)
if max is not None and value > max:
raise errors.InvalidParameterError(
"Parameter %r may not exceed %r." % (name, max)
)
return value
except (ValueError, TypeError):
pass
raise errors.InvalidParameterError(
"Parameter %r must be an integer value." % name
)
def get_param_as_float(
self,
name: str,
default: Union[object, float] = MISSING,
min: Optional[float] = None,
max: Optional[float] = None) -> float:
if name not in self._params:
if default is not MISSING:
return cast(float, default)
raise errors.MissingRequiredParameterError(
"Required parameter %r is missing." % name)
value = self._params[name]
try:
value = float(value)
if min is not None and value < min:
raise errors.InvalidParameterError(
"Parameter %r must be at least %r." % (name, min))
if max is not None and value > max:
raise errors.InvalidParameterError(
"Parameter %r may not exceed %r." % (name, max))
return value
except (ValueError, TypeError):
pass
raise errors.InvalidParameterError(
"Parameter %r must be a float value." % name)
def get_param_as_bool(
self, name: str, default: Union[object, bool] = MISSING
) -> bool:
if name not in self._params:
if default is not MISSING:
return cast(bool, default)
raise errors.MissingRequiredParameterError(
"Required parameter %r is missing." % name
)
value = self._params[name]
try:
value = str(value).lower()
except TypeError:
pass
if value in ["1", "y", "yes", "yeah", "yep", "yup", "t", "true"]:
return True
if value in ["0", "n", "no", "nope", "f", "false"]:
return False
raise errors.InvalidParameterError(
"Parameter %r must be a boolean value." % name
)
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