137 lines
4.3 KiB
Python
137 lines
4.3 KiB
Python
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#!/usr/bin/env python
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#(c) Martijn Voncken, mvoncken@gmail.com
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#Same Licence as web.py 0.22 ->Public Domain
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#
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"""
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static fileserving for web.py
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without the need for wsgi wrapper magic.
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"""
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import webpy022 as web
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from webpy022.http import seeother, url
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import posixpath
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import urlparse
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import urllib
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import mimetypes
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import os
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import datetime
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import cgi
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from StringIO import StringIO
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mimetypes.init() # try to read system mime.types
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class static_handler:
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"""
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mostly c&p from SimpleHttpServer
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serves relative from start location
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"""
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base_dir = './'
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extensions_map = mimetypes.types_map
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def get_base_dir(self):
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#override this if you have a config that changes the base dir at runtime
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#deluge on windows :(
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return self.base_dir
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def GET(self, path):
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path = self.translate_path(path)
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if os.path.isdir(path):
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if not path.endswith('/'):
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path += "/"
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return self.list_directory(path)
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ctype = self.guess_type(path)
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try:
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f = open(path, 'rb')
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except IOError:
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raise Exception('file not found:%s' % path)
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#web.header("404", "File not found")
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#return
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web.header("Content-type", ctype)
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fs = os.fstat(f.fileno())
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web.header("Content-Length", str(fs[6]))
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web.lastmodified(datetime.datetime.fromtimestamp(fs.st_mtime))
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print f.read()
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def translate_path(self, path):
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"""Translate a /-separated PATH to the local filename syntax.
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Components that mean special things to the local file system
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(e.g. drive or directory names) are ignored. (XXX They should
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probably be diagnosed.)
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"""
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# abandon query parameters
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path = urlparse.urlparse(path)[2]
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path = posixpath.normpath(urllib.unquote(path))
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words = path.split('/')
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words = filter(None, words)
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path = self.get_base_dir()
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for word in words:
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drive, word = os.path.splitdrive(word)
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head, word = os.path.split(word)
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if word in (os.curdir, os.pardir): continue
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path = os.path.join(path, word)
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return path
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def guess_type(self, path):
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base, ext = posixpath.splitext(path)
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if ext in self.extensions_map:
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return self.extensions_map[ext]
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ext = ext.lower()
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if ext in self.extensions_map:
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return self.extensions_map[ext]
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else:
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return 'application/octet-stream'
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def list_directory(self, path):
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"""Helper to produce a directory listing (absent index.html).
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Return value is either a file object, or None (indicating an
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error). In either case, the headers are sent, making the
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interface the same as for send_head().
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#TODO ->use web.py +template!
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"""
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try:
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list = os.listdir(path)
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except os.error:
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web.header('404', "No permission to list directory")
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return None
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list.sort(key=lambda a: a.lower())
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f = StringIO()
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displaypath = cgi.escape(urllib.unquote(path))
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f.write("<title>Directory listing for %s</title>\n" % displaypath)
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f.write("<h2>Directory listing for %s</h2>\n" % displaypath)
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f.write("<hr>\n<ul>\n")
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for name in list:
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fullname = os.path.join(path, name)
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displayname = linkname = name
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# Append / for directories or @ for symbolic links
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if os.path.isdir(fullname):
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displayname = name + "/"
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linkname = name + "/"
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if os.path.islink(fullname):
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displayname = name + "@"
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# Note: a link to a directory displays with @ and links with /
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f.write('<li><a href="%s">%s</a>\n'
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% (urllib.quote(linkname), cgi.escape(displayname)))
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f.write("</ul>\n<hr>\n")
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length = f.tell()
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f.seek(0)
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web.header("Content-type", "text/html")
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web.header("Content-Length", str(length))
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print f.read()
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if __name__ == '__main__':
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#example:
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class usr_static(static_handler):
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base_dir = os.path.expanduser('~')
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urls = ('/relative/(.*)','static_handler',
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'/(.*)','usr_static')
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web.run(urls,globals())
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