forked from extern/httpie-cli
155 lines
4.5 KiB
Python
155 lines
4.5 KiB
Python
"""This module provides the main functionality of HTTPie.
|
|
|
|
Invocation flow:
|
|
|
|
1. Read, validate and process the input (args, `stdin`).
|
|
2. Create and send a request.
|
|
3. Stream, and possibly process and format, the requested parts
|
|
of the request-response exchange.
|
|
4. Simultaneously write to `stdout`
|
|
5. Exit.
|
|
|
|
"""
|
|
import sys
|
|
import errno
|
|
|
|
import requests
|
|
from httpie import __version__ as httpie_version
|
|
from requests import __version__ as requests_version
|
|
from pygments import __version__ as pygments_version
|
|
|
|
from .cli import parser
|
|
from .compat import str, is_py3
|
|
from .client import get_response
|
|
from .downloads import Download
|
|
from .models import Environment
|
|
from .output import build_output_stream, write, write_with_colors_win_py3
|
|
from . import ExitStatus
|
|
|
|
|
|
def get_exit_status(http_status, follow=False):
|
|
"""Translate HTTP status code to exit status code."""
|
|
if 300 <= http_status <= 399 and not follow:
|
|
# Redirect
|
|
return ExitStatus.ERROR_HTTP_3XX
|
|
elif 400 <= http_status <= 499:
|
|
# Client Error
|
|
return ExitStatus.ERROR_HTTP_4XX
|
|
elif 500 <= http_status <= 599:
|
|
# Server Error
|
|
return ExitStatus.ERROR_HTTP_5XX
|
|
else:
|
|
return ExitStatus.OK
|
|
|
|
|
|
def print_debug_info(env):
|
|
sys.stderr.writelines([
|
|
'HTTPie %s\n' % httpie_version,
|
|
'HTTPie data: %s\n' % env.config.directory,
|
|
'Requests %s\n' % requests_version,
|
|
'Pygments %s\n' % pygments_version,
|
|
'Python %s %s\n' % (sys.version, sys.platform)
|
|
])
|
|
|
|
|
|
def main(args=sys.argv[1:], env=Environment()):
|
|
"""Run the main program and write the output to ``env.stdout``.
|
|
|
|
Return exit status code.
|
|
|
|
"""
|
|
if env.config.default_options:
|
|
args = env.config.default_options + args
|
|
|
|
def error(msg, *args, **kwargs):
|
|
msg = msg % args
|
|
level = kwargs.get('level', 'error')
|
|
env.stderr.write('http: %s: %s\n' % (level, msg))
|
|
|
|
debug = '--debug' in args
|
|
traceback = debug or '--traceback' in args
|
|
exit_status = ExitStatus.OK
|
|
|
|
if debug:
|
|
print_debug_info(env)
|
|
if args == ['--debug']:
|
|
return exit_status
|
|
|
|
try:
|
|
args = parser.parse_args(args=args, env=env)
|
|
|
|
download = None
|
|
if args.download:
|
|
args.follow = True
|
|
download = Download(
|
|
output_file=args.output_file,
|
|
progress_file=env.stderr,
|
|
resume=args.download_resume
|
|
)
|
|
download.alter_request_headers(args.headers)
|
|
|
|
response = get_response(args, config_dir=env.config.directory)
|
|
|
|
if args.check_status:
|
|
exit_status = get_exit_status(response.status_code, args.follow)
|
|
|
|
if not env.stdout_isatty and exit_status != ExitStatus.OK:
|
|
error('HTTP %s %s',
|
|
response.raw.status,
|
|
response.raw.reason,
|
|
level='warning')
|
|
|
|
write_kwargs = {
|
|
'stream': build_output_stream(
|
|
args, env, response.request, response),
|
|
|
|
# This will in fact be `stderr` with `--download`
|
|
'outfile': env.stdout,
|
|
|
|
'flush': env.stdout_isatty or args.stream
|
|
}
|
|
|
|
try:
|
|
|
|
if env.is_windows and is_py3 and 'colors' in args.prettify:
|
|
write_with_colors_win_py3(**write_kwargs)
|
|
else:
|
|
write(**write_kwargs)
|
|
|
|
if download:
|
|
# Response body download.
|
|
download_stream, download_to = download.start(response)
|
|
write(
|
|
stream=download_stream,
|
|
outfile=download_to,
|
|
flush=False,
|
|
)
|
|
download.finished()
|
|
|
|
except IOError as e:
|
|
if not traceback and e.errno == errno.EPIPE:
|
|
# Ignore broken pipes unless --traceback.
|
|
env.stderr.write('\n')
|
|
else:
|
|
raise
|
|
|
|
except (KeyboardInterrupt, SystemExit):
|
|
if traceback:
|
|
raise
|
|
env.stderr.write('\n')
|
|
exit_status = ExitStatus.ERROR
|
|
|
|
except requests.Timeout:
|
|
exit_status = ExitStatus.ERROR_TIMEOUT
|
|
error('Request timed out (%ss).', args.timeout)
|
|
|
|
except Exception as e:
|
|
# TODO: Better distinction between expected and unexpected errors.
|
|
# Network errors vs. bugs, etc.
|
|
if traceback:
|
|
raise
|
|
error('%s: %s', type(e).__name__, str(e))
|
|
exit_status = ExitStatus.ERROR
|
|
|
|
return exit_status
|