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import contextlib
import gzip
import json
import os
import threading
from collections import ChainMap
from http.server import BaseHTTPRequestHandler, HTTPServer
import pytest
requests = pytest.importorskip("requests")
port = 9898
data = b"\n".join([b"some test data"] * 1000)
realfile = f"http://127.0.0.1:{port}/index/realfile"
index = b'<a href="%s">Link</a>' % realfile.encode()
listing = open(
os.path.join(os.path.dirname(__file__), "data", "listing.html"), "rb"
).read()
win = os.name == "nt"
def _make_listing(*paths):
return "\n".join(
f'<a href="http://127.0.0.1:{port}{f}">Link_{i}</a>'
for i, f in enumerate(paths)
).encode()
@pytest.fixture
def reset_files():
yield
# Reset the newly added files after the
# test is completed.
HTTPTestHandler.dynamic_files.clear()
class HTTPTestHandler(BaseHTTPRequestHandler):
static_files = {
"/index/realfile": data,
"/index/otherfile": data,
"/index": index,
"/data/20020401": listing,
"/simple/": _make_listing("/simple/file", "/simple/dir/"),
"/simple/file": data,
"/simple/dir/": _make_listing("/simple/dir/file"),
"/simple/dir/file": data,
}
dynamic_files = {}
files = ChainMap(dynamic_files, static_files)
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
def _respond(self, code=200, headers=None, data=b""):
headers = headers or {}
headers.update({"User-Agent": "test"})
self.send_response(code)
for k, v in headers.items():
self.send_header(k, str(v))
self.end_headers()
if data:
self.wfile.write(data)
def do_GET(self):
file_path = self.path
if file_path.endswith("/") and file_path.rstrip("/") in self.files:
file_path = file_path.rstrip("/")
file_data = self.files.get(file_path)
if "give_path" in self.headers:
return self._respond(200, data=json.dumps({"path": self.path}).encode())
if "redirect" in self.headers and file_path != "/index/realfile":
new_url = f"http://127.0.0.1:{port}/index/realfile"
return self._respond(301, {"Location": new_url})
if file_data is None:
return self._respond(404)
status = 200
content_range = f"bytes 0-{len(file_data) - 1}/{len(file_data)}"
if ("Range" in self.headers) and ("ignore_range" not in self.headers):
ran = self.headers["Range"]
b, ran = ran.split("=")
start, end = ran.split("-")
if start:
content_range = f"bytes {start}-{end}/{len(file_data)}"
file_data = file_data[int(start) : (int(end) + 1) if end else None]
else:
# suffix only
l = len(file_data)
content_range = f"bytes {l - int(end)}-{l - 1}/{l}"
file_data = file_data[-int(end) :]
if "use_206" in self.headers:
status = 206
if "give_length" in self.headers:
if "gzip_encoding" in self.headers:
file_data = gzip.compress(file_data)
response_headers = {
"Content-Length": len(file_data),
"Content-Encoding": "gzip",
}
else:
response_headers = {"Content-Length": len(file_data)}
self._respond(status, response_headers, file_data)
elif "give_range" in self.headers:
self._respond(status, {"Content-Range": content_range}, file_data)
elif "give_mimetype" in self.headers:
self._respond(
status, {"Content-Type": "text/html; charset=utf-8"}, file_data
)
else:
self._respond(status, data=file_data)
def do_POST(self):
length = self.headers.get("Content-Length")
file_path = self.path.rstrip("/")
if length is None:
assert self.headers.get("Transfer-Encoding") == "chunked"
self.files[file_path] = b"".join(self.read_chunks())
else:
self.files[file_path] = self.rfile.read(length)
self._respond(200)
do_PUT = do_POST
def read_chunks(self):
length = -1
while length != 0:
line = self.rfile.readline().strip()
if len(line) == 0:
length = 0
else:
length = int(line, 16)
yield self.rfile.read(length)
self.rfile.readline()
def do_HEAD(self):
if "head_not_auth" in self.headers:
return self._respond(
403, {"Content-Length": 123}, b"not authorized for HEAD request"
)
elif "head_ok" not in self.headers:
return self._respond(405)
file_path = self.path.rstrip("/")
file_data = self.files.get(file_path)
if file_data is None:
return self._respond(404)
if ("give_length" in self.headers) or ("head_give_length" in self.headers):
response_headers = {"Content-Length": len(file_data)}
if "zero_length" in self.headers:
response_headers["Content-Length"] = 0
elif "gzip_encoding" in self.headers:
file_data = gzip.compress(file_data)
response_headers["Content-Encoding"] = "gzip"
response_headers["Content-Length"] = len(file_data)
self._respond(200, response_headers)
elif "give_range" in self.headers:
self._respond(
200, {"Content-Range": f"0-{len(file_data) - 1}/{len(file_data)}"}
)
elif "give_etag" in self.headers:
self._respond(200, {"ETag": "xxx"})
else:
self._respond(200) # OK response, but no useful info
@contextlib.contextmanager
def serve():
server_address = ("", port)
httpd = HTTPServer(server_address, HTTPTestHandler)
th = threading.Thread(target=httpd.serve_forever)
th.daemon = True
th.start()
try:
yield f"http://127.0.0.1:{port}"
finally:
httpd.socket.close()
httpd.shutdown()
th.join()
@pytest.fixture(scope="module")
def server():
with serve() as s:
yield s
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