Web-Server-Python/Web_server_upload.py at master · parasphull/Web-Server-Python · GitHub

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import os
import http.server
import urllib.parse
import html
import re
from io import BytesIO

class SimpleHTTPHandler(http.server.SimpleHTTPRequestHandler):

    def do_POST(self):
        r, info = self.deal_post_data()
        print((r, info, "by: ", self.client_address))

        f = BytesIO()
        f.write(b"<html>\n<title>Upload Result Page</title>\n")
        f.write(b"<body>\n<h2>Upload Result Page</h2>\n")
        f.write(b"<hr>\n")
        if r:
            f.write(b"<strong>Success:</strong>")
        else:
            f.write(b"<strong>Failed:</strong>")
        f.write(info.encode())
        f.write(("<br><a href=\"%s\">back</a>" % self.headers['referer']).encode())
        f.seek(0)
        self.send_response(200)
        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...")
        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()
                return (True, "File '%s' upload success!" % fn)
            else:
                out.write(preline)
                preline = line
        return (False, "Unexpect Ends of data.")

    def list_directory(self, path):
        """This will produce a directory list and upload file option.
        Returned value is either a file object, or None (indicating an
        error).
        """
        try:
            list = os.listdir(path)
        except os.error:
            self.send_error(404, "No permission to list directory")
            return None

        f = BytesIO()
        displaypath = html.escape(urllib.parse.unquote(self.path))
        f.write(("<html>\n<title>Directory listing for %s</title>\n" % displaypath).encode())
        f.write(("<body>\n<h2>Directory listing for %s</h2>\n" % displaypath).encode())
        f.write(b"<hr>\n")
        f.write(b"<form ENCTYPE=\"multipart/form-data\" method=\"post\">")
        f.write(b"<input name=\"file\" type=\"file\"/>")
        f.write(b"<input type=\"submit\" value=\"upload\"/></form>\n")
        f.write(b"<hr>\n<ul>\n")
        for name in 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 /
            f.write(('<li><a href="%s">%s</a>\n'
                    % (urllib.parse.quote(linkname), html.escape(displayname))).encode())
        f.write(b"</ul>\n<hr>\n</body>\n</html>\n")
        f.seek(0)
        self.send_response(200)
        self.end_headers()
        return f

if __name__ == '__main__':
    httpd = http.server.HTTPServer(('localhost', 8800), SimpleHTTPHandler)
    print('Starting server, use <Ctrl-C> to stop')
    httpd.serve_forever()