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ImageReceiveServer.py
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executable file
·261 lines (205 loc) · 10.4 KB
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#! /usr/bin/python
# File: ImageReceiveServer.py
#
# Contains: A basic HTTP server to accept HTTP PUTs and POSTs.
#
# Written by: DTS
#
# Copyright: Copyright (c) 2009 Apple Inc. All Rights Reserved.
#
# Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Inc.
# ("Apple") in consideration of your agreement to the following
# terms, and your use, installation, modification or
# redistribution of this Apple software constitutes acceptance of
# these terms. If you do not agree with these terms, please do
# not use, install, modify or redistribute this Apple software.
#
# In consideration of your agreement to abide by the following
# terms, and subject to these terms, Apple grants you a personal,
# non-exclusive license, under Apple's copyrights in this
# original Apple software (the "Apple Software"), to use,
# reproduce, modify and redistribute the Apple Software, with or
# without modifications, in source and/or binary forms; provided
# that if you redistribute the Apple Software in its entirety and
# without modifications, you must retain this notice and the
# following text and disclaimers in all such redistributions of
# the Apple Software. Neither the name, trademarks, service marks
# or logos of Apple Inc. may be used to endorse or promote
# products derived from the Apple Software without specific prior
# written permission from Apple. Except as expressly stated in
# this notice, no other rights or licenses, express or implied,
# are granted by Apple herein, including but not limited to any
# patent rights that may be infringed by your derivative works or
# by other works in which the Apple Software may be incorporated.
#
# The Apple Software is provided by Apple on an "AS IS" basis.
# APPLE MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
# WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING
# THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
# COMBINATION WITH YOUR PRODUCTS.
#
# IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT,
# INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY
# OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
# OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY
# OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR
# OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
import os
import sys
import BaseHTTPServer
import string
import email.feedparser
global gImageDirPath
class HTTPError (Exception):
def __init__(self, statusCode, statusMessage=None):
self.statusCode = statusCode
self.statusMessage = statusMessage
class MyHandler(BaseHTTPServer.BaseHTTPRequestHandler):
def do_GET(self):
self.send_error(404)
def do_PUT(self):
global gImageDirPath
try:
assert self.path[0] == "/"
fileName = self.path[1:]
if fileName.translate(string.maketrans("", ""), string.ascii_letters + string.digits + "_") != ".":
# Non-alphanumeric characters must be limited to exactly
# one dot, that is, the extension delimiter.
raise HTTPError(403)
# These Content-Type comparisons are too naive (they should be
# case insensitive, and they should ignore training parameters),
# but this is only a test server, not a real server.
contentType = self.headers.get('Content-Type')
if contentType == None or (contentType not in ["image/png", "image/jpeg", "image/gif"]):
raise HTTPError(406)
if contentType == "image/png" and not fileName.endswith(".png"):
raise HTTPError(406)
if contentType == "image/jpeg" and not fileName.endswith(".jpg"):
raise HTTPError(406)
contentLength = self.headers.get('Content-Length')
if contentLength == None:
raise HTTPError(411)
try:
fileLength = int(contentLength)
assert fileLength > 0
except:
raise HTTPError(411)
filePath = os.path.join(gImageDirPath, fileName)
fileExists = os.path.exists(filePath)
imageFile = open(filePath, "w")
# Transfer the data in MB chunks to prevent us being run out of
# memory with large files.
bytesReadSoFar = 0
while bytesReadSoFar != fileLength:
bytesToRead = (fileLength - bytesReadSoFar)
if bytesToRead > (1024 * 1024):
bytesToRead = (1024 * 1024)
data = self.rfile.read(bytesToRead)
bytesReadSoFar += len(data)
imageFile.write(data)
data = None
imageFile.close()
if fileExists:
self.send_response(200)
else:
self.send_response(201)
self.end_headers()
except HTTPError, e:
self.send_error(e.statusCode, e.statusMessage)
except:
self.send_error(500, "Internal Server Error")
def do_POST(self):
global gImageDirPath
try:
if self.path != "/cgi-bin/PostIt.py":
raise HTTPError(403)
# These Content-Type comparisons are too naive (they should be
# case insensitive, and they should ignore training parameters),
# but this is only a test server, not a real server.
contentType = self.headers.get('Content-Type')
if contentType == None or not contentType.startswith("multipart/form-data"):
raise HTTPError(406)
contentLength = self.headers.get('Content-Length')
if contentLength == None:
raise HTTPError(411)
try:
fileLength = int(contentLength)
assert fileLength > 0
except:
raise HTTPError(411)
# Set up a MIME parser and feed it the Content-Type header.
p = email.feedparser.FeedParser()
p.feed("Content-Type: %s\r\n" % self.headers.get('Content-Type'))
# Transfer the data in MB chunks to prevent us being run out of
# memory with large files. Of course, a large file is probably
# going to hoark and die because the MIME parser keeps everything
# in memory. Good thing this is only a trivial test server.
bytesReadSoFar = 0
while bytesReadSoFar != fileLength:
bytesToRead = (fileLength - bytesReadSoFar)
if bytesToRead > (1024 * 1024):
bytesToRead = (1024 * 1024)
data = self.rfile.read(bytesToRead)
bytesReadSoFar += len(data)
p.feed(data)
data = None
rootMessage = p.close()
# Check some basic facts about the message.
if not rootMessage.is_multipart() or len(rootMessage.defects) != 0:
raise HTTPError(400)
# Look for the "fileContents" part.
fileContentsMessage = None
for message in rootMessage.get_payload():
if message.get_param("name", header="Content-Disposition") == "fileContents":
fileContentsMessage = message
break
if fileContentsMessage == None or fileContentsMessage.is_multipart():
raise HTTPError(400)
# Extract the file name and check that it's reasonable.
fileName = fileContentsMessage.get_param("filename", header="Content-Disposition")
if fileName == None:
raise HTTPError(400)
if fileName.translate(string.maketrans("", ""), string.ascii_letters + string.digits + "_") != ".":
# Non-alphanumeric characters must be limited to exactly
# one dot, that is, the extension delimiter.
raise HTTPError(403)
# Verify the content type.
contentType = fileContentsMessage.get('Content-Type')
if contentType == None or (contentType not in ["image/png", "image/jpeg", "image/gif"]):
raise HTTPError(406)
if contentType == "image/png" and not fileName.endswith(".png"):
raise HTTPError(406)
if contentType == "image/jpeg" and not fileName.endswith(".jpg"):
raise HTTPError(406)
# Create the file with the supplied name and write the content to it.
filePath = os.path.join(gImageDirPath, fileName)
fileExists = os.path.exists(filePath)
imageFile = open(filePath, "w")
imageFile.write(fileContentsMessage.get_payload())
imageFile.close()
if fileExists:
self.send_response(200)
else:
self.send_response(201)
self.end_headers()
except HTTPError, e:
self.send_error(e.statusCode, e.statusMessage)
except:
self.send_error(500, "Internal Server Error")
def main():
global gImageDirPath
gImageDirPath = os.path.join(os.curdir, "images")
if not os.path.exists(gImageDirPath):
os.mkdir(gImageDirPath)
server = BaseHTTPServer.HTTPServer(('', 9000), MyHandler)
print "Hello Cruel World!"
try:
server.serve_forever()
except KeyboardInterrupt:
print ""
if __name__ == "__main__":
main()