mirror of
https://github.com/httpie/cli.git
synced 2024-11-24 16:53:35 +01:00
299 lines
10 KiB
Python
299 lines
10 KiB
Python
import argparse
|
||
import os
|
||
import platform
|
||
import sys
|
||
import socket
|
||
from typing import List, Optional, Union, Callable
|
||
|
||
import requests
|
||
from pygments import __version__ as pygments_version
|
||
from requests import __version__ as requests_version
|
||
|
||
from . import __version__ as httpie_version
|
||
from .cli.constants import OUT_REQ_BODY
|
||
from .cli.nested_json import NestedJSONSyntaxError
|
||
from .client import collect_messages
|
||
from .context import Environment, LogLevel
|
||
from .downloads import Downloader
|
||
from .models import (
|
||
RequestsMessageKind,
|
||
OutputOptions
|
||
)
|
||
from .output.models import ProcessingOptions
|
||
from .output.writer import write_message, write_stream, write_raw_data, MESSAGE_SEPARATOR_BYTES
|
||
from .plugins.registry import plugin_manager
|
||
from .status import ExitStatus, http_status_to_exit_status
|
||
from .utils import unwrap_context
|
||
from .internal.update_warnings import check_updates
|
||
from .internal.daemon_runner import is_daemon_mode, run_daemon_task
|
||
|
||
|
||
# noinspection PyDefaultArgument
|
||
def raw_main(
|
||
parser: argparse.ArgumentParser,
|
||
main_program: Callable[[argparse.Namespace, Environment], ExitStatus],
|
||
args: List[Union[str, bytes]] = sys.argv,
|
||
env: Environment = Environment(),
|
||
use_default_options: bool = True,
|
||
) -> ExitStatus:
|
||
program_name, *args = args
|
||
env.program_name = os.path.basename(program_name)
|
||
args = decode_raw_args(args, env.stdin_encoding)
|
||
|
||
if is_daemon_mode(args):
|
||
return run_daemon_task(env, args)
|
||
|
||
plugin_manager.load_installed_plugins(env.config.plugins_dir)
|
||
|
||
if use_default_options and env.config.default_options:
|
||
args = env.config.default_options + args
|
||
|
||
include_debug_info = '--debug' in args
|
||
include_traceback = include_debug_info or '--traceback' in args
|
||
|
||
def handle_generic_error(e, annotation=None):
|
||
msg = str(e)
|
||
if hasattr(e, 'request'):
|
||
request = e.request
|
||
if hasattr(request, 'url'):
|
||
msg = (
|
||
f'{msg} while doing a {request.method}'
|
||
f' request to URL: {request.url}'
|
||
)
|
||
if annotation:
|
||
msg += annotation
|
||
env.log_error(f'{type(e).__name__}: {msg}')
|
||
if include_traceback:
|
||
raise
|
||
|
||
if include_debug_info:
|
||
print_debug_info(env)
|
||
if args == ['--debug']:
|
||
return ExitStatus.SUCCESS
|
||
|
||
exit_status = ExitStatus.SUCCESS
|
||
|
||
try:
|
||
parsed_args = parser.parse_args(
|
||
args=args,
|
||
env=env,
|
||
)
|
||
except NestedJSONSyntaxError as exc:
|
||
env.stderr.write(str(exc) + "\n")
|
||
if include_traceback:
|
||
raise
|
||
exit_status = ExitStatus.ERROR
|
||
except KeyboardInterrupt:
|
||
env.stderr.write('\n')
|
||
if include_traceback:
|
||
raise
|
||
exit_status = ExitStatus.ERROR_CTRL_C
|
||
except SystemExit as e:
|
||
if e.code != ExitStatus.SUCCESS:
|
||
env.stderr.write('\n')
|
||
if include_traceback:
|
||
raise
|
||
exit_status = ExitStatus.ERROR
|
||
else:
|
||
check_updates(env)
|
||
try:
|
||
exit_status = main_program(
|
||
args=parsed_args,
|
||
env=env,
|
||
)
|
||
except KeyboardInterrupt:
|
||
env.stderr.write('\n')
|
||
if include_traceback:
|
||
raise
|
||
exit_status = ExitStatus.ERROR_CTRL_C
|
||
except SystemExit as e:
|
||
if e.code != ExitStatus.SUCCESS:
|
||
env.stderr.write('\n')
|
||
if include_traceback:
|
||
raise
|
||
exit_status = ExitStatus.ERROR
|
||
except requests.Timeout:
|
||
exit_status = ExitStatus.ERROR_TIMEOUT
|
||
env.log_error(f'Request timed out ({parsed_args.timeout}s).')
|
||
except requests.TooManyRedirects:
|
||
exit_status = ExitStatus.ERROR_TOO_MANY_REDIRECTS
|
||
env.log_error(
|
||
f'Too many redirects'
|
||
f' (--max-redirects={parsed_args.max_redirects}).'
|
||
)
|
||
except requests.exceptions.ConnectionError as exc:
|
||
annotation = None
|
||
original_exc = unwrap_context(exc)
|
||
if isinstance(original_exc, socket.gaierror):
|
||
if original_exc.errno == socket.EAI_AGAIN:
|
||
annotation = '\nCouldn’t connect to a DNS server. Please check your connection and try again.'
|
||
elif original_exc.errno == socket.EAI_NONAME:
|
||
annotation = '\nCouldn’t resolve the given hostname. Please check the URL and try again.'
|
||
propagated_exc = original_exc
|
||
else:
|
||
propagated_exc = exc
|
||
|
||
handle_generic_error(propagated_exc, annotation=annotation)
|
||
exit_status = ExitStatus.ERROR
|
||
except Exception as e:
|
||
# TODO: Further distinction between expected and unexpected errors.
|
||
handle_generic_error(e)
|
||
exit_status = ExitStatus.ERROR
|
||
|
||
return exit_status
|
||
|
||
|
||
def main(
|
||
args: List[Union[str, bytes]] = sys.argv,
|
||
env: Environment = Environment()
|
||
) -> ExitStatus:
|
||
"""
|
||
The main function.
|
||
|
||
Pre-process args, handle some special types of invocations,
|
||
and run the main program with error handling.
|
||
|
||
Return exit status code.
|
||
|
||
"""
|
||
|
||
from .cli.definition import parser
|
||
|
||
return raw_main(
|
||
parser=parser,
|
||
main_program=program,
|
||
args=args,
|
||
env=env
|
||
)
|
||
|
||
|
||
def program(args: argparse.Namespace, env: Environment) -> ExitStatus:
|
||
"""
|
||
The main program without error handling.
|
||
|
||
"""
|
||
# TODO: Refactor and drastically simplify, especially so that the separator logic is elsewhere.
|
||
exit_status = ExitStatus.SUCCESS
|
||
downloader = None
|
||
initial_request: Optional[requests.PreparedRequest] = None
|
||
final_response: Optional[requests.Response] = None
|
||
processing_options = ProcessingOptions.from_raw_args(args)
|
||
|
||
def separate():
|
||
getattr(env.stdout, 'buffer', env.stdout).write(MESSAGE_SEPARATOR_BYTES)
|
||
|
||
def request_body_read_callback(chunk: bytes):
|
||
should_pipe_to_stdout = bool(
|
||
# Request body output desired
|
||
OUT_REQ_BODY in args.output_options
|
||
# & not `.read()` already pre-request (e.g., for compression)
|
||
and initial_request
|
||
# & non-EOF chunk
|
||
and chunk
|
||
)
|
||
if should_pipe_to_stdout:
|
||
return write_raw_data(
|
||
env,
|
||
chunk,
|
||
processing_options=processing_options,
|
||
headers=initial_request.headers
|
||
)
|
||
|
||
try:
|
||
if args.download:
|
||
args.follow = True # --download implies --follow.
|
||
downloader = Downloader(env, output_file=args.output_file, resume=args.download_resume)
|
||
downloader.pre_request(args.headers)
|
||
messages = collect_messages(env, args=args,
|
||
request_body_read_callback=request_body_read_callback)
|
||
force_separator = False
|
||
prev_with_body = False
|
||
|
||
# Process messages as they’re generated
|
||
for message in messages:
|
||
output_options = OutputOptions.from_message(message, args.output_options)
|
||
|
||
do_write_body = output_options.body
|
||
if prev_with_body and output_options.any() and (force_separator or not env.stdout_isatty):
|
||
# Separate after a previous message with body, if needed. See test_tokens.py.
|
||
separate()
|
||
force_separator = False
|
||
if output_options.kind is RequestsMessageKind.REQUEST:
|
||
if not initial_request:
|
||
initial_request = message
|
||
if output_options.body:
|
||
is_streamed_upload = not isinstance(message.body, (str, bytes))
|
||
do_write_body = not is_streamed_upload
|
||
force_separator = is_streamed_upload and env.stdout_isatty
|
||
else:
|
||
final_response = message
|
||
if args.check_status or downloader:
|
||
exit_status = http_status_to_exit_status(http_status=message.status_code, follow=args.follow)
|
||
if exit_status != ExitStatus.SUCCESS and (not env.stdout_isatty or args.quiet == 1):
|
||
env.log_error(f'HTTP {message.raw.status} {message.raw.reason}', level=LogLevel.WARNING)
|
||
write_message(
|
||
requests_message=message,
|
||
env=env,
|
||
output_options=output_options._replace(
|
||
body=do_write_body
|
||
),
|
||
processing_options=processing_options
|
||
)
|
||
prev_with_body = output_options.body
|
||
|
||
# Cleanup
|
||
if force_separator:
|
||
separate()
|
||
if downloader and exit_status == ExitStatus.SUCCESS:
|
||
# Last response body download.
|
||
download_stream, download_to = downloader.start(
|
||
initial_url=initial_request.url,
|
||
final_response=final_response,
|
||
)
|
||
write_stream(stream=download_stream, outfile=download_to, flush=False)
|
||
downloader.finish()
|
||
if downloader.interrupted:
|
||
exit_status = ExitStatus.ERROR
|
||
env.log_error(
|
||
f'Incomplete download: size={downloader.status.total_size};'
|
||
f' downloaded={downloader.status.downloaded}'
|
||
)
|
||
return exit_status
|
||
|
||
finally:
|
||
if downloader and not downloader.finished:
|
||
downloader.failed()
|
||
if args.output_file and args.output_file_specified:
|
||
args.output_file.close()
|
||
|
||
|
||
def print_debug_info(env: Environment):
|
||
env.stderr.writelines([
|
||
f'HTTPie {httpie_version}\n',
|
||
f'Requests {requests_version}\n',
|
||
f'Pygments {pygments_version}\n',
|
||
f'Python {sys.version}\n{sys.executable}\n',
|
||
f'{platform.system()} {platform.release()}',
|
||
])
|
||
env.stderr.write('\n\n')
|
||
env.stderr.write(repr(env))
|
||
env.stderr.write('\n\n')
|
||
env.stderr.write(repr(plugin_manager))
|
||
env.stderr.write('\n')
|
||
|
||
|
||
def decode_raw_args(
|
||
args: List[Union[str, bytes]],
|
||
stdin_encoding: str
|
||
) -> List[str]:
|
||
"""
|
||
Convert all bytes args to str
|
||
by decoding them using stdin encoding.
|
||
|
||
"""
|
||
return [
|
||
arg.decode(stdin_encoding)
|
||
if type(arg) is bytes else arg
|
||
for arg in args
|
||
]
|