Created
May 27, 2018 13:59
-
-
Save 2torus/81669966fd24e1b5186d8cdc28efddc9 to your computer and use it in GitHub Desktop.
Python http.server answering pre-flighted CORS options requests
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import http.server | |
""" | |
Original at https://gist.github.com/enjalot/2904124 | |
""" | |
class CORSHTTPRequestHandler(http.server.SimpleHTTPRequestHandler): | |
def send_head(self): | |
"""Common code for GET and HEAD commands. | |
This sends the response code and MIME headers. | |
Return value is either a file object (which has to be copied | |
to the outputfile by the caller unless the command was HEAD, | |
and must be closed by the caller under all circumstances), or | |
None, in which case the caller has nothing further to do. | |
""" | |
path = self.translate_path(self.path) | |
f = None | |
if os.path.isdir(path): | |
if not self.path.endswith('/'): | |
# redirect browser - doing basically what apache does | |
self.send_response(301) | |
self.send_header("Location", self.path + "/") | |
self.end_headers() | |
return None | |
for index in "index.html", "index.htm": | |
index = os.path.join(path, index) | |
if os.path.exists(index): | |
path = index | |
break | |
else: | |
return self.list_directory(path) | |
ctype = self.guess_type(path) | |
try: | |
# Always read in binary mode. Opening files in text mode may cause | |
# newline translations, making the actual size of the content | |
# transmitted *less* than the content-length! | |
f = open(path, 'rb') | |
except IOError: | |
self.send_error(404, "File not found") | |
return None | |
self.send_response(200) | |
self.send_header("Content-type", ctype) | |
fs = os.fstat(f.fileno()) | |
self.send_header("Content-Length", str(fs[6])) | |
self.send_header("Last-Modified", self.date_time_string(fs.st_mtime)) | |
self.send_header("Access-Control-Allow-Origin", "*") | |
self.end_headers() | |
return f | |
def do_OPTIONS(self): | |
self.send_response(200, "ok") | |
self.send_header('Access-Control-Allow-Origin', '*') | |
self.send_header('Access-Control-Allow-Methods', 'GET, OPTIONS') | |
self.send_header("Access-Control-Allow-Headers", "X-Requested-With") | |
self.send_header("Access-Control-Allow-Headers", "Content-Type") | |
self.end_headers() | |
if __name__ == "__main__": | |
import os | |
import socketserver | |
PORT = 8000 | |
Handler = CORSHTTPRequestHandler | |
httpd = socketserver.TCPServer(("", PORT), Handler) | |
print("serving at port", PORT) | |
httpd.serve_forever() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment