httpie-cli/httpie/cli/requestitems.py
Jakub Roztocil 4b524e6a8c v2.0.0
2020-01-12 10:50:57 +01:00

150 lines
4.3 KiB
Python

import os
from io import BytesIO
from typing import Callable, Dict, IO, List, Optional, Tuple, Union
from httpie.cli.argtypes import KeyValueArg
from httpie.cli.constants import (
SEPARATOR_DATA_EMBED_FILE_CONTENTS, SEPARATOR_DATA_EMBED_RAW_JSON_FILE,
SEPARATOR_DATA_RAW_JSON, SEPARATOR_DATA_STRING, SEPARATOR_FILE_UPLOAD,
SEPARATOR_HEADER, SEPARATOR_HEADER_EMPTY, SEPARATOR_QUERY_PARAM,
)
from httpie.cli.dicts import (
RequestDataDict, RequestFilesDict, RequestHeadersDict, RequestJSONDataDict,
RequestQueryParamsDict,
)
from httpie.cli.exceptions import ParseError
from httpie.utils import (get_content_type, load_json_preserve_order)
class RequestItems:
def __init__(self, as_form=False):
self.headers = RequestHeadersDict()
self.data = RequestDataDict() if as_form else RequestJSONDataDict()
self.files = RequestFilesDict()
self.params = RequestQueryParamsDict()
@classmethod
def from_args(
cls,
request_item_args: List[KeyValueArg],
as_form=False,
) -> 'RequestItems':
instance = cls(as_form=as_form)
rules: Dict[str, Tuple[Callable, dict]] = {
SEPARATOR_HEADER: (
process_header_arg,
instance.headers,
),
SEPARATOR_HEADER_EMPTY: (
process_empty_header_arg,
instance.headers,
),
SEPARATOR_QUERY_PARAM: (
process_query_param_arg,
instance.params,
),
SEPARATOR_FILE_UPLOAD: (
process_file_upload_arg,
instance.files,
),
SEPARATOR_DATA_STRING: (
process_data_item_arg,
instance.data,
),
SEPARATOR_DATA_EMBED_FILE_CONTENTS: (
process_data_embed_file_contents_arg,
instance.data,
),
SEPARATOR_DATA_RAW_JSON: (
process_data_raw_json_embed_arg,
instance.data,
),
SEPARATOR_DATA_EMBED_RAW_JSON_FILE: (
process_data_embed_raw_json_file_arg,
instance.data,
),
}
for arg in request_item_args:
processor_func, target_dict = rules[arg.sep]
target_dict[arg.key] = processor_func(arg)
return instance
JSONType = Union[str, bool, int, list, dict]
def process_header_arg(arg: KeyValueArg) -> Optional[str]:
return arg.value or None
def process_empty_header_arg(arg: KeyValueArg) -> str:
if arg.value:
raise ParseError(
'Invalid item "%s" '
'(to specify an empty header use `Header;`)'
% arg.orig
)
return arg.value
def process_query_param_arg(arg: KeyValueArg) -> str:
return arg.value
def process_file_upload_arg(arg: KeyValueArg) -> Tuple[str, IO, str]:
filename = arg.value
try:
with open(os.path.expanduser(filename), 'rb') as f:
contents = f.read()
except IOError as e:
raise ParseError('"%s": %s' % (arg.orig, e))
return (
os.path.basename(filename),
BytesIO(contents),
get_content_type(filename),
)
def process_data_item_arg(arg: KeyValueArg) -> str:
return arg.value
def process_data_embed_file_contents_arg(arg: KeyValueArg) -> str:
return load_text_file(arg)
def process_data_embed_raw_json_file_arg(arg: KeyValueArg) -> JSONType:
contents = load_text_file(arg)
value = load_json(arg, contents)
return value
def process_data_raw_json_embed_arg(arg: KeyValueArg) -> JSONType:
value = load_json(arg, arg.value)
return value
def load_text_file(item: KeyValueArg) -> str:
path = item.value
try:
with open(os.path.expanduser(path), 'rb') as f:
return f.read().decode()
except IOError as e:
raise ParseError('"%s": %s' % (item.orig, e))
except UnicodeDecodeError:
raise ParseError(
'"%s": cannot embed the content of "%s",'
' not a UTF8 or ASCII-encoded text file'
% (item.orig, item.value)
)
def load_json(arg: KeyValueArg, contents: str) -> JSONType:
try:
return load_json_preserve_order(contents)
except ValueError as e:
raise ParseError('"%s": %s' % (arg.orig, e))