python3 简易 http server:实现本地与远程服务器传大文件

在个人目录下创建新文件httpserver.py

bash 复制代码
vim httpserver.py

文件内容为python3代码:

python3 复制代码
# !/usr/bin/env python3
import datetime
import email
import html
import http.server
import io
import mimetypes
import os
import posixpath
import re
import shutil
import sys
import urllib.error
import urllib.parse
import urllib.request
from http import HTTPStatus

__version__ = "0.1"
__all__ = ["SimpleHTTPRequestHandler"]


class SimpleHTTPRequestHandler(http.server.BaseHTTPRequestHandler):
    server_version = "SimpleHTTP/" + __version__
    extensions_map = _encodings_map_default = {
        '.gz': 'application/gzip',
        '.Z': 'application/octet-stream',
        '.bz2': 'application/x-bzip2',
        '.xz': 'application/x-xz',
    }

    def __init__(self, *args, directory=None, **kwargs):
        if directory is None:
            directory = os.getcwd()
        self.directory = os.fspath(directory)
        super().__init__(*args, **kwargs)

    def do_GET(self):
        f = self.send_head()
        if f:
            try:
                self.copyfile(f, self.wfile)
            finally:
                f.close()

    def do_HEAD(self):
        f = self.send_head()
        if f:
            f.close()

    def send_head(self):
        path = self.translate_path(self.path)
        f = None
        if os.path.isdir(path):
            parts = urllib.parse.urlsplit(self.path)
            if not parts.path.endswith('/'):
                # redirect browser - doing basically what apache does
                self.send_response(HTTPStatus.MOVED_PERMANENTLY)
                new_parts = (parts[0], parts[1], parts[2] + '/',
                             parts[3], parts[4])
                new_url = urllib.parse.urlunsplit(new_parts)
                self.send_header("Location", new_url)
                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:
                return self.list_directory(path)

        ctype = self.guess_type(path)
        if path.endswith("/"):
            self.send_error(HTTPStatus.NOT_FOUND, "File not found")
            return None
        try:
            f = open(path, 'rb')
        except OSError:
            self.send_error(HTTPStatus.NOT_FOUND, "File not found")
            return None
        try:
            fs = os.fstat(f.fileno())
            # Use browser cache if possible
            if ("If-Modified-Since" in self.headers
                    and "If-None-Match" not in self.headers):
                # compare If-Modified-Since and time of last file modification
                try:
                    ims = email.utils.parsedate_to_datetime(self.headers["If-Modified-Since"])
                except (TypeError, IndexError, OverflowError, ValueError):
                    # ignore ill-formed values
                    pass
                else:
                    if ims.tzinfo is None:
                        # obsolete format with no timezone, cf.
                        # https://tools.ietf.org/html/rfc7231#section-7.1.1.1
                        ims = ims.replace(tzinfo=datetime.timezone.utc)
                    if ims.tzinfo is datetime.timezone.utc:
                        # compare to UTC datetime of last modification
                        last_modif = datetime.datetime.fromtimestamp(
                            fs.st_mtime, datetime.timezone.utc)
                        # remove microseconds, like in If-Modified-Since
                        last_modif = last_modif.replace(microsecond=0)

                        if last_modif <= ims:
                            self.send_response(HTTPStatus.NOT_MODIFIED)
                            self.end_headers()
                            f.close()
                            return None

            self.send_response(HTTPStatus.OK)
            self.send_header("Content-type", ctype)
            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
        except:
            f.close()
            raise

    def list_directory(self, path):
        try:
            list_dir = os.listdir(path)
        except OSError:
            self.send_error(HTTPStatus.NOT_FOUND, "No permission to list_dir directory")
            return None
        list_dir.sort(key=lambda a: a.lower())
        r = []
        try:
            display_path = urllib.parse.unquote(self.path, errors='surrogatepass')
        except UnicodeDecodeError:
            display_path = urllib.parse.unquote(path)
        display_path = html.escape(display_path, quote=False)
        enc = sys.getfilesystemencoding()

        form = """
            <h1>文件上传</h1>\n
            <form ENCTYPE="multipart/form-data" method="post">\n
                <input name="file" type="file"/>\n
                <input type="submit" value="upload"/>\n
            </form>\n"""
        title = 'Directory listing for %s' % display_path
        r.append('<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" '
                 '"http://www.w3.org/TR/html4/strict.dtd">')
        r.append('<html>\n<head>')
        r.append('<meta http-equiv="Content-Type" '
                 'content="text/html; charset=%s">' % enc)
        r.append('<title>%s</title>\n</head>' % title)
        r.append('<body>%s\n<h1>%s</h1>' % (form, title))
        r.append('<hr>\n<ul>')
        for name in list_dir:
            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 /
            r.append('<li><a href="%s">%s</a></li>' % (urllib.parse.quote(linkname, errors='surrogatepass'),
                                                       html.escape(displayname, quote=False)))
        r.append('</ul>\n<hr>\n</body>\n</html>\n')
        encoded = '\n'.join(r).encode(enc, 'surrogate escape')
        f = io.BytesIO()
        f.write(encoded)
        f.seek(0)
        self.send_response(HTTPStatus.OK)
        self.send_header("Content-type", "text/html; charset=%s" % enc)
        self.send_header("Content-Length", str(len(encoded)))
        self.end_headers()
        return f

    def translate_path(self, path):
        # abandon query parameters
        path = path.split('?', 1)[0]
        path = path.split('#', 1)[0]
        # Don't forget explicit trailing slash when normalizing. Issue17324
        trailing_slash = path.rstrip().endswith('/')
        try:
            path = urllib.parse.unquote(path, errors='surrogatepass')
        except UnicodeDecodeError:
            path = urllib.parse.unquote(path)
        path = posixpath.normpath(path)
        words = path.split('/')
        words = filter(None, words)
        path = self.directory
        for word in words:
            if os.path.dirname(word) or word in (os.curdir, os.pardir):
                # Ignore components that are not a simple file/directory name
                continue
            path = os.path.join(path, word)
        if trailing_slash:
            path += '/'
        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]
        guess, _ = mimetypes.guess_type(path)
        if guess:
            return guess
        return 'application/octet-stream'

    def do_POST(self):
        r, info = self.deal_post_data()
        self.log_message('%s, %s => %s' % (r, info, self.client_address))
        enc = sys.getfilesystemencoding()
        res = [
            '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" '
            '"http://www.w3.org/TR/html4/strict.dtd">',
            '<html>\n<head>',
            '<meta http-equiv="Content-Type" content="text/html; charset=%s">' % enc,
            '<title>%s</title>\n</head>' % "Upload Result Page",
            '<body><h1>%s</h1>\n' % "Upload Result"
        ]
        if r:
            res.append('<p>SUCCESS: %s</p>\n' % info)
        else:
            res.append('<p>FAILURE: %s</p>' % info)
        res.append('<a href=\"%s\">back</a>' % self.headers['referer'])
        res.append('</body></html>')
        encoded = '\n'.join(res).encode(enc, 'surrogate escape')
        f = io.BytesIO()
        f.write(encoded)
        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()
        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()
        remain_bytes = int(self.headers['content-length'])
        line = self.rfile.readline()
        remain_bytes -= len(line)
        if boundary not in line:
            return False, "Content NOT begin with boundary"
        line = self.rfile.readline()
        remain_bytes -= 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()
        remain_bytes -= len(line)
        line = self.rfile.readline()
        remain_bytes -= 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()
        remain_bytes -= len(preline)
        while remain_bytes > 0:
            line = self.rfile.readline()
            remain_bytes -= 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."


if __name__ == '__main__':
    try:
        port = int(sys.argv[1])
    except Exception:
        port = 8000
        print('-------->> Warning: Port is not given, will use deafult port: 8000 ')
        print('-------->> if you want to use other port, please execute: ')
        print('-------->> python SimpleHTTPServerWithUpload.py port ')
        print("-------->> port is a integer and it's range: 1024 < port < 65535 ")

    http.server.test(
        HandlerClass=SimpleHTTPRequestHandler,
        ServerClass=http.server.HTTPServer,
        port=port
    )

在需要暴露的目录下启动http服务,如/data/codes/

bash 复制代码
cd /data/codes/
python3 httpserver.py 8888

随后在个人电脑访问http://ip:8888即可浏览文件、上传文件:

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