mirror of
https://github.com/python/cpython.git
synced 2024-12-09 09:44:44 +08:00
202 lines
6.3 KiB
Python
202 lines
6.3 KiB
Python
"""Simple HTTP Server.
|
|
|
|
This module builds on BaseHTTPServer by implementing the standard GET
|
|
and HEAD requests in a fairly straightforward manner.
|
|
|
|
"""
|
|
|
|
|
|
__version__ = "0.6"
|
|
|
|
__all__ = ["SimpleHTTPRequestHandler"]
|
|
|
|
import os
|
|
import posixpath
|
|
import BaseHTTPServer
|
|
import urllib
|
|
import cgi
|
|
import shutil
|
|
import mimetypes
|
|
from StringIO import StringIO
|
|
|
|
|
|
class SimpleHTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
|
|
|
|
"""Simple HTTP request handler with GET and HEAD commands.
|
|
|
|
This serves files from the current directory and any of its
|
|
subdirectories. It assumes that all files are plain text files
|
|
unless they have the extension ".html" in which case it assumes
|
|
they are HTML files.
|
|
|
|
The GET and HEAD requests are identical except that the HEAD
|
|
request omits the actual contents of the file.
|
|
|
|
"""
|
|
|
|
server_version = "SimpleHTTP/" + __version__
|
|
|
|
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 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):
|
|
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)
|
|
if ctype.startswith('text/'):
|
|
mode = 'r'
|
|
else:
|
|
mode = 'rb'
|
|
try:
|
|
f = open(path, mode)
|
|
except IOError:
|
|
self.send_error(404, "File not found")
|
|
return None
|
|
self.send_response(200)
|
|
self.send_header("Content-type", ctype)
|
|
self.send_header("Content-Length", str(os.fstat(f.fileno())[6]))
|
|
self.end_headers()
|
|
return f
|
|
|
|
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:
|
|
list = os.listdir(path)
|
|
except os.error:
|
|
self.send_error(404, "No permission to list directory")
|
|
return None
|
|
list.sort(key=lambda a: a.lower())
|
|
f = StringIO()
|
|
f.write("<title>Directory listing for %s</title>\n" % self.path)
|
|
f.write("<h2>Directory listing for %s</h2>\n" % self.path)
|
|
f.write("<hr>\n<ul>\n")
|
|
for name in list:
|
|
fullname = os.path.join(path, name)
|
|
displayname = linkname = name = cgi.escape(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 /
|
|
f.write('<li><a href="%s">%s</a>\n' % (linkname, displayname))
|
|
f.write("</ul>\n<hr>\n")
|
|
length = f.tell()
|
|
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
|
|
|
|
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.)
|
|
|
|
"""
|
|
path = posixpath.normpath(urllib.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):
|
|
"""Copy all data between two file objects.
|
|
|
|
The SOURCE argument is a file object open for reading
|
|
(or anything with a read() method) and the DESTINATION
|
|
argument is a file object open for writing (or
|
|
anything with a write() method).
|
|
|
|
The only reason for overriding this would be to change
|
|
the block size or perhaps to replace newlines by CRLF
|
|
-- note however that this the default server uses this
|
|
to copy binary data as well.
|
|
|
|
"""
|
|
shutil.copyfileobj(source, outputfile)
|
|
|
|
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 text/plain
|
|
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.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['']
|
|
|
|
extensions_map = mimetypes.types_map.copy()
|
|
extensions_map.update({
|
|
'': 'application/octet-stream', # Default
|
|
'.py': 'text/plain',
|
|
'.c': 'text/plain',
|
|
'.h': 'text/plain',
|
|
})
|
|
|
|
|
|
def test(HandlerClass = SimpleHTTPRequestHandler,
|
|
ServerClass = BaseHTTPServer.HTTPServer):
|
|
BaseHTTPServer.test(HandlerClass, ServerClass)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
test()
|