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startup_uploader.py
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startup_uploader.py
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"""Unitree Uploader
needs python3
get: return the list of uploaded packages in json
post: post package to the upload folder
author: Zhongkai Chen
site: www.unitree.com
"""
import os
import posixpath
import http.server
import urllib.request, urllib.parse, urllib.error
import html
import shutil
import mimetypes
import re
from io import BytesIO
class UnitreeUpdateManager(http.server.BaseHTTPRequestHandler):
file_list = '{"files":[]}'
def do_GET(self):
"""Serve a GET request."""
f = self.send_head()
if f:
self.copyfile(f, self.wfile)
f.close()
def do_HEAD(self):
"""Serve a HEAD request."""
f = self.send_head()
if f:
f.close()
def do_POST(self):
"""Serve a POST request."""
r, info = self.deal_post_data()
f = BytesIO()
f.write(("{'info':'"+info+"'}").encode())
length = f.tell()
f.seek(0)
if r:
self.send_response(200)
self.send_header("Access-Control-Allow-Origin","*")
else:
self.send_response(400)
self.send_header("Content-type", "application/json")
self.send_header("Content-Length", str(length))
self.end_headers()
if f:
self.copyfile(f, self.wfile)
f.close()
def deal_post_data(self):
content_type = self.headers['content-type']
if not content_type:
return (False, "Content-Type header doesn't contain boundary")
boundary = content_type.split("=")[1].encode()
remainbytes = int(self.headers['content-length'])
line = self.rfile.readline()
remainbytes -= len(line)
if not boundary in line:
return (False, "Content NOT begin with boundary")
line = self.rfile.readline()
remainbytes -= len(line)
fn = re.findall(
r'Content-Disposition.*name="file"; filename="(.*)"', line.decode())
if not fn:
return (False, "Can't find out file name...")
ext = os.path.splitext(fn[0])[1]
if ext != '.zip':
return (False, "File ext not supported")
path = self.translate_path(self.path)
fn = os.path.join(path, fn[0])
line = self.rfile.readline()
remainbytes -= len(line)
line = self.rfile.readline()
remainbytes -= len(line)
try:
out = open(fn, 'wb')
except IOError:
return (False, "Can't create file to write, do you have permission to write?")
preline = self.rfile.readline()
remainbytes -= len(preline)
while remainbytes > 0:
line = self.rfile.readline()
remainbytes -= len(line)
if boundary in line:
preline = preline[0:-1]
if preline.endswith(b'\r'):
preline = preline[0:-1]
out.write(preline)
out.close()
self.list_directory(path)
return (True, "File '%s' upload success!" % fn)
else:
out.write(preline)
preline = line
self.list_directory(path)
return (False, "Unexpect Ends of data.")
def send_head(self):
path = self.translate_path(self.path)
print(path)
f = None
if os.path.isdir(path):
if not self.path.endswith('/upload/'):
self.send_response(301)
self.send_header("Access-Control-Allow-Origin","*")
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:
self.list_directory(path)
f = BytesIO()
f.write(self.file_list.encode())
length = f.tell()
f.seek(0)
self.send_response(200)
self.send_header("Access-Control-Allow-Origin","*")
self.send_header("Content-type", "application/json; charset=utf-8")
self.send_header("Content-Length", str(length))
self.end_headers()
return f
ctype = self.guess_type(path)
try:
f = open(path, 'rb')
except IOError:
self.send_error(404, "File not found")
return None
self.send_response(200)
self.send_header("Access-Control-Allow-Origin","*")
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.end_headers()
return f
def list_directory(self, path):
try:
list = os.listdir(path)
except os.error:
self.send_error(404, '{"info":"No Permission"}')
return None
list.sort(key=lambda a: a.lower())
self.file_list = '{"files":['
length = len(list)
for i, name in enumerate(list):
fullname = os.path.join(path, name)
displayname = linkname = name
# Append / for directories or @ for symbolic links
if os.path.isdir(fullname):
displayname = name + "/"
linkname = name + "/"
if os.path.islink(fullname):
displayname = name + "@"
# Note: a link to a directory displays with @ and links with /
if(i +1 < length):
self.file_list = self.file_list + ('{"name":"%s","link":"%s"},' % (html.escape(linkname), html.escape(path+"/"+linkname)))
else:
self.file_list = self.file_list + ('{"name":"%s","link":"%s"}' % (html.escape(linkname), html.escape(path+"/"+linkname)))
self.file_list = self.file_list + ']}'
def translate_path(self, path):
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 copyfile(self, source, outputfile):
shutil.copyfileobj(source, outputfile)
def guess_type(self, path):
base, ext = posixpath.splitext(path)
if ext in self.extensions_map:
return self.extensions_map[ext]
ext = ext.lower()
if ext in self.extensions_map:
return self.extensions_map[ext]
else:
return self.extensions_map['']
if not mimetypes.inited:
mimetypes.init() # try to read system mime.types
extensions_map = mimetypes.types_map.copy()
extensions_map.update({
'': 'application/octet-stream', # Default
'.py': 'text/plain',
'.c': 'text/plain',
'.h': 'text/plain',
})
if __name__ == '__main__':
server_address = ('', 9800)
httpd = http.server.HTTPServer(server_address,UnitreeUpdateManager)
httpd.serve_forever()