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  • 文件传输server.py

    用于局域网机器之间临时互传文件,修复了中文乱码问题

    # -*- coding: utf-8 -*-
    #!/usr/bin/env python3
    """Simple HTTP Server With Upload.
    
    This module builds on BaseHTTPServer by implementing the standard GET
    and HEAD requests in a fairly straightforward manner.
    
    """
     
     
    __version__ = "0.1"
    __all__ = ["SimpleHTTPRequestHandler"]
     
    import os
    import posixpath
    import http.server
    import urllib.request, urllib.parse, urllib.error
    import cgi
    import shutil
    import mimetypes
    import re
    from io import BytesIO
     
     
    class SimpleHTTPRequestHandler(http.server.BaseHTTPRequestHandler):
     
        """Simple HTTP request handler with GET/HEAD/POST commands.
    
        This serves files from the current directory and any of its
        subdirectories.  The MIME type for files is determined by
        calling the .guess_type() method. And can reveive file uploaded
        by client.
    
        The GET/HEAD/POST requests are identical except that the HEAD
        request omits the actual contents of the file.
    
        """
     
        server_version = "SimpleHTTPWithUpload/" + __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 do_POST(self):
            """Serve a POST request."""
            r, info = self.deal_post_data()
            print((r, info, "by: ", self.client_address))
            f = BytesIO()
            f.write(b'<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">')
            f.write(b"<html>
    <title>Upload Result Page</title>
    ")
            f.write(b"<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    ")
            f.write(b"<body>
    <h2>Upload Result Page</h2>
    ")
            f.write(b"<hr>
    ")
            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.write(b"<hr>")
            f.write(b"</body>
    </html>
    ")
            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()
            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'
    '):
                        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 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):
                if not self.path.endswith('/'):
                    # redirect browser - doing basically what apache does
                    self.send_response(301)
                    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:
                    return self.list_directory(path)
            ctype = self.guess_type(path)
            try:
                # Always read in binary mode. Opening files in text mode may cause
                # newline translations, making the actual size of the content
                # transmitted *less* than the content-length!
                f = open(path, 'rb')
            except IOError:
                self.send_error(404, "File not found")
                return None
            self.send_response(200)
            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):
            """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 = BytesIO()
            displaypath = cgi.escape(urllib.parse.unquote(self.path))
            f.write(b'<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">')
            f.write(("<html>
    <title>Directory listing for %s</title>
    " % displaypath).encode())
            f.write(b"<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    ")
            f.write(("<body>
    <h2>Directory listing for %s</h2>
    " % displaypath).encode())
            f.write(b"<hr>
    ")
            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>
    ")
            f.write(b"<hr>
    <ul>
    ")
            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>
    '
                        % (urllib.parse.quote(linkname), cgi.escape(displayname))).encode())
            f.write(b"</ul>
    <hr>
    </body>
    </html>
    ")
            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.)
    
            """
            # abandon query parameters
            path = path.split('?',1)[0]
            path = path.split('#',1)[0]
            path = posixpath.normpath(urllib.parse.unquote(path))
            words = path.split('/')
            words = [_f for _f in words if _f]
            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 application/octet-stream
            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['']
     
        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',
            })
     
     
    def test(HandlerClass = SimpleHTTPRequestHandler,
             ServerClass = http.server.HTTPServer):
        http.server.test(HandlerClass, ServerClass)
     
    if __name__ == '__main__':
        test()   
    

    see: https://gist.github.com/UniIsland/3346170

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  • 原文地址:https://www.cnblogs.com/radio/p/12016383.html
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