import argparse import http.client import json import sys import zlib from contextlib import contextmanager from pathlib import Path from typing import Iterable, Union import requests from requests.adapters import HTTPAdapter from httpie import __version__ from httpie.cli.constants import SSL_VERSION_ARG_MAPPING from httpie.cli.dicts import RequestHeadersDict from httpie.plugins import plugin_manager from httpie.sessions import get_httpie_session from httpie.utils import repr_dict try: # noinspection PyPackageRequirements import urllib3 # urllib3.disable_warnings() except (ImportError, AttributeError): pass FORM_CONTENT_TYPE = 'application/x-www-form-urlencoded; charset=utf-8' JSON_CONTENT_TYPE = 'application/json' JSON_ACCEPT = f'{JSON_CONTENT_TYPE}, */*' DEFAULT_UA = f'HTTPie/{__version__}' def collect_messages( args: argparse.Namespace, config_dir: Path, ) -> Iterable[Union[requests.PreparedRequest, requests.Response]]: httpie_session = None httpie_session_headers = None if args.session or args.session_read_only: httpie_session = get_httpie_session( config_dir=config_dir, session_name=args.session or args.session_read_only, host=args.headers.get('Host'), url=args.url, ) httpie_session_headers = httpie_session.headers request_kwargs = make_request_kwargs( args=args, base_headers=httpie_session_headers, ) send_kwargs = make_send_kwargs(args) send_kwargs_mergeable_from_env = make_send_kwargs_mergeable_from_env(args) requests_session = build_requests_session( ssl_version=args.ssl_version, ) if httpie_session: httpie_session.update_headers(request_kwargs['headers']) requests_session.cookies = httpie_session.cookies if args.auth_plugin: # Save auth from CLI to HTTPie session. httpie_session.auth = { 'type': args.auth_plugin.auth_type, 'raw_auth': args.auth_plugin.raw_auth, } elif httpie_session.auth: # Apply auth from HTTPie session request_kwargs['auth'] = httpie_session.auth if args.debug: # TODO: reflect the split between request and send kwargs. dump_request(request_kwargs) request = requests.Request(**request_kwargs) prepared_request = requests_session.prepare_request(request) if args.compress and prepared_request.body: compress_body(prepared_request, always=args.compress > 1) response_count = 0 while prepared_request: yield prepared_request if not args.offline: send_kwargs_merged = requests_session.merge_environment_settings( url=prepared_request.url, **send_kwargs_mergeable_from_env, ) with max_headers(args.max_headers): response = requests_session.send( request=prepared_request, **send_kwargs_merged, **send_kwargs, ) response_count += 1 if response.next: if args.max_redirects and response_count == args.max_redirects: raise requests.TooManyRedirects if args.follow: prepared_request = response.next if args.all: yield response continue yield response break if httpie_session: if httpie_session.is_new() or not args.session_read_only: httpie_session.cookies = requests_session.cookies httpie_session.save() # noinspection PyProtectedMember @contextmanager def max_headers(limit): # orig = http.client._MAXHEADERS http.client._MAXHEADERS = limit or float('Inf') try: yield finally: http.client._MAXHEADERS = orig def compress_body(request: requests.PreparedRequest, always: bool): deflater = zlib.compressobj() body_bytes = ( request.body if isinstance(request.body, bytes) else request.body.encode() ) deflated_data = deflater.compress(body_bytes) deflated_data += deflater.flush() is_economical = len(deflated_data) < len(body_bytes) if is_economical or always: request.body = deflated_data request.headers['Content-Encoding'] = 'deflate' request.headers['Content-Length'] = str(len(deflated_data)) class HTTPieHTTPSAdapter(HTTPAdapter): def __init__(self, ssl_version=None, **kwargs): self._ssl_version = ssl_version super().__init__(**kwargs) def init_poolmanager(self, *args, **kwargs): kwargs['ssl_version'] = self._ssl_version super().init_poolmanager(*args, **kwargs) def build_requests_session( ssl_version: str = None, ) -> requests.Session: requests_session = requests.Session() # Install our adapter. requests_session.mount('https://', HTTPieHTTPSAdapter( ssl_version=( SSL_VERSION_ARG_MAPPING[ssl_version] if ssl_version else None ) )) # Install adapters from plugins. for plugin_cls in plugin_manager.get_transport_plugins(): transport_plugin = plugin_cls() requests_session.mount( prefix=transport_plugin.prefix, adapter=transport_plugin.get_adapter(), ) return requests_session def dump_request(kwargs: dict): sys.stderr.write( f'\n>>> requests.request(**{repr_dict(kwargs)})\n\n') def finalize_headers(headers: RequestHeadersDict) -> RequestHeadersDict: final_headers = RequestHeadersDict() for name, value in headers.items(): if value is not None: # “leading or trailing LWS MAY be removed without # changing the semantics of the field value” # # Also, requests raises `InvalidHeader` for leading spaces. value = value.strip() if isinstance(value, str): # See value = value.encode('utf8') final_headers[name] = value return final_headers def make_default_headers(args: argparse.Namespace) -> RequestHeadersDict: default_headers = RequestHeadersDict({ 'User-Agent': DEFAULT_UA }) auto_json = args.data and not args.form if args.json or auto_json: default_headers['Accept'] = JSON_ACCEPT if args.json or (auto_json and args.data): default_headers['Content-Type'] = JSON_CONTENT_TYPE elif args.form and not args.files: # If sending files, `requests` will set # the `Content-Type` for us. default_headers['Content-Type'] = FORM_CONTENT_TYPE return default_headers def make_send_kwargs(args: argparse.Namespace) -> dict: kwargs = { 'timeout': args.timeout or None, 'allow_redirects': False, } return kwargs def make_send_kwargs_mergeable_from_env(args: argparse.Namespace) -> dict: cert = None if args.cert: cert = args.cert if args.cert_key: cert = cert, args.cert_key kwargs = { 'proxies': {p.key: p.value for p in args.proxy}, 'stream': True, 'verify': { 'yes': True, 'true': True, 'no': False, 'false': False, }.get(args.verify.lower(), args.verify), 'cert': cert, } return kwargs def make_request_kwargs( args: argparse.Namespace, base_headers: RequestHeadersDict = None ) -> dict: """ Translate our `args` into `requests.Request` keyword arguments. """ # Serialize JSON data, if needed. data = args.data auto_json = data and not args.form if (args.json or auto_json) and isinstance(data, dict): if data: data = json.dumps(data) else: # We need to set data to an empty string to prevent requests # from assigning an empty list to `response.request.data`. data = '' # Finalize headers. headers = make_default_headers(args) if base_headers: headers.update(base_headers) headers.update(args.headers) headers = finalize_headers(headers) kwargs = { 'method': args.method.lower(), 'url': args.url, 'headers': headers, 'data': data, 'auth': args.auth, 'params': args.params, 'files': args.files, } return kwargs