mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-06 01:19:38 +00:00
291 lines
9.1 KiB
Python
291 lines
9.1 KiB
Python
#!/usr/bin/env python3
|
|
|
|
# Portions Copyright (C) 2009,2010 Xyne
|
|
# Portions Copyright (C) 2011 Sean Goller
|
|
#
|
|
# This program is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU General Public License
|
|
# (version 2) as published by the Free Software Foundation.
|
|
#
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
# 02110-1301, USA.
|
|
|
|
|
|
"""Range HTTP Server.
|
|
|
|
This module builds on BaseHTTPServer by implementing the standard GET
|
|
and HEAD requests in a fairly straightforward manner, and includes support
|
|
for the Range header.
|
|
|
|
"""
|
|
|
|
|
|
__version__ = "0.1"
|
|
|
|
__all__ = ["RangeHTTPRequestHandler"]
|
|
|
|
import os
|
|
import sys
|
|
|
|
from socketserver import ThreadingMixIn
|
|
|
|
import posixpath
|
|
import http.server
|
|
import urllib.parse
|
|
import html
|
|
import shutil
|
|
import mimetypes
|
|
import io
|
|
import time
|
|
|
|
|
|
_bandwidth = 0
|
|
|
|
|
|
class ThreadingSimpleServer(ThreadingMixIn, http.server.HTTPServer):
|
|
pass
|
|
|
|
|
|
class RangeHTTPRequestHandler(http.server.BaseHTTPRequestHandler):
|
|
|
|
"""Simple HTTP request handler with GET and HEAD commands.
|
|
|
|
This serves files from the current directory and any of its
|
|
subdirectories. The MIME type for files is determined by
|
|
calling the .guess_type() method.
|
|
|
|
The GET and HEAD requests are identical except that the HEAD
|
|
request omits the actual contents of the file.
|
|
|
|
"""
|
|
|
|
server_version = "RangeHTTP/" + __version__
|
|
|
|
def do_GET(self):
|
|
"""Serve a GET request."""
|
|
f, start_range, end_range = self.send_head()
|
|
print("Got values of {} and {}".format(start_range, end_range))
|
|
if f:
|
|
f.seek(start_range, 0)
|
|
chunk = 0x1000
|
|
total = 0
|
|
while chunk > 0:
|
|
if start_range + chunk > end_range:
|
|
chunk = end_range - start_range
|
|
|
|
if _bandwidth != 0:
|
|
time_to_sleep = float(float(chunk) / float(_bandwidth))
|
|
time.sleep(time_to_sleep)
|
|
|
|
try:
|
|
self.wfile.write(f.read(chunk))
|
|
except Exception:
|
|
break
|
|
total += chunk
|
|
start_range += chunk
|
|
f.close()
|
|
|
|
def do_HEAD(self):
|
|
"""Serve a HEAD request."""
|
|
f, start_range, end_range = self.send_head()
|
|
if f:
|
|
f.close()
|
|
|
|
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
|
|
self.send_response(301)
|
|
self.send_header("Location", self.path + "/")
|
|
self.end_headers()
|
|
return (None, 0, 0)
|
|
for index in "index.html", "index.html":
|
|
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, 0, 0)
|
|
|
|
if "Range" in self.headers:
|
|
self.send_response(206) # partial content response
|
|
else:
|
|
self.send_response(200)
|
|
|
|
self.send_header("Content-type", ctype)
|
|
file_size = os.path.getsize(path)
|
|
|
|
start_range = 0
|
|
end_range = file_size
|
|
|
|
self.send_header("Accept-Ranges", "bytes")
|
|
if "Range" in self.headers:
|
|
s, e = self.headers['range'][6:].split('-', 1) # bytes:%d-%d
|
|
sl = len(s)
|
|
el = len(e)
|
|
|
|
if sl:
|
|
start_range = int(s)
|
|
if el:
|
|
end_range = int(e) + 1
|
|
elif el:
|
|
start_range = file_size - min(file_size, int(e))
|
|
|
|
self.send_header("Content-Range", "bytes {}-{}/{}".format(start_range, end_range, file_size))
|
|
self.send_header("Content-Length", end_range - start_range)
|
|
self.end_headers()
|
|
|
|
print("Sending bytes {} to {}...".format(start_range, end_range))
|
|
return (f, start_range, end_range)
|
|
|
|
def list_directory(self, path):
|
|
"""Helper to produce a directory listing (absent index.html).
|
|
|
|
Return value is either a file object, or None (indicating an
|
|
error). In either case, the headers are sent, making the
|
|
interface the same as for send_head().
|
|
|
|
"""
|
|
try:
|
|
lst = os.listdir(path)
|
|
except OSError:
|
|
self.send_error(404, "Access Forbidden")
|
|
return None
|
|
|
|
lst.sort(key=lambda file_name: file_name.lower())
|
|
html_text = []
|
|
|
|
displaypath = html.escape(urllib.parse.unquote(self.path))
|
|
html_text.append('<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">')
|
|
html_text.append("<html>\n<title>Directory listing for {}</title>\n".format(displaypath))
|
|
html_text.append("<body>\n<h2>Directory listing for {}</h2>\n".format(displaypath))
|
|
html_text.append("<hr>\n<ul>\n")
|
|
|
|
for name in lst:
|
|
fullname = os.path.join(path, name)
|
|
displayname = linkname = name
|
|
|
|
if os.path.isdir(fullname):
|
|
displayname = name + "/"
|
|
linkname = name + "/"
|
|
|
|
if os.path.islink(fullname):
|
|
displayname = name + "@"
|
|
|
|
html_text.append('<li><a href = "{}">{}</a>\n'.format(urllib.parse.quote(linkname), html.escape(displayname)))
|
|
|
|
html_text.append('</ul>\n</hr>\n</body>\n</html>\n')
|
|
|
|
byte_encoded_string = "\n".join(html_text).encode("utf-8", "surrogateescape")
|
|
f = io.BytesIO()
|
|
f.write(byte_encoded_string)
|
|
length = len(byte_encoded_string)
|
|
|
|
f.seek(0)
|
|
|
|
self.send_response(200)
|
|
self.send_header("Content-type", "text/html")
|
|
self.send_header("Content-length", str(length))
|
|
self.end_headers()
|
|
|
|
return (f, 0, length)
|
|
|
|
def translate_path(self, path):
|
|
"""Translate a /-separated PATH to the local filename syntax.
|
|
|
|
Components that mean special things to the local file system
|
|
(e.g. drive or directory names) are ignored. (XXX They should
|
|
probably be diagnosed.)
|
|
|
|
"""
|
|
# abandon query parameters
|
|
path = path.split("?", 1)[0]
|
|
path = path.split("#", 1)[0]
|
|
path = posixpath.normpath(urllib.parse.unquote(path))
|
|
words = path.split("/")
|
|
words = filter(None, words)
|
|
path = os.getcwd()
|
|
|
|
for word in words:
|
|
drive, word = os.path.splitdrive(word)
|
|
head, word = os.path.split(word)
|
|
if word in (os.curdir, os.pardir):
|
|
continue
|
|
path = os.path.join(path, word)
|
|
return path
|
|
|
|
def guess_type(self, path):
|
|
"""Guess the type of a file.
|
|
|
|
Argument is a PATH (a filename).
|
|
|
|
Return value is a string of the form type/subtype,
|
|
usable for a MIME Content-type header.
|
|
|
|
The default implementation looks the file's extension
|
|
up in the table self.extensions_map, using application/octet-stream
|
|
as a default; however it would be permissible (if
|
|
slow) to look inside the data to make a better guess.
|
|
|
|
"""
|
|
|
|
base, ext = posixpath.splitext(path)
|
|
if ext in self.extension_map:
|
|
return self.extension_map[ext]
|
|
ext = ext.lower()
|
|
if ext in self.extension_map:
|
|
return self.extension_map[ext]
|
|
else:
|
|
return self.extension_map['']
|
|
|
|
if not mimetypes.inited:
|
|
mimetypes.init()
|
|
extension_map = mimetypes.types_map.copy()
|
|
extension_map.update({
|
|
'': 'application/octet-stream', # Default
|
|
'.py': 'text/plain',
|
|
'.c': 'text/plain',
|
|
'.h': 'text/plain',
|
|
'.mp4': 'video/mp4',
|
|
'.ogg': 'video/ogg',
|
|
'.java': 'text/plain',
|
|
})
|
|
|
|
|
|
def test(handler_class=RangeHTTPRequestHandler, server_class=http.server.HTTPServer):
|
|
http.server.test(handler_class, server_class)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
httpd = ThreadingSimpleServer(("0.0.0.0", int(sys.argv[1])), RangeHTTPRequestHandler)
|
|
httpd.serve_forever()
|