added simple image server

#!/usr/bin/python

from __future__ import division

from __future__ import print_function

'''

# Copyright (C) 2015, Elphel.inc.

#   

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http:#www.gnu.org/licenses/>.

@author:     Andrey Filippov

@copyright:  2015 Elphel, Inc.

@license:    GPLv3.0+

@contact:    andrey@elphel.coml

@deffield    updated: Updated

'''

__author__ = "Andrey Filippov"

__copyright__ = "Copyright 2015, Elphel, Inc."

__license__ = "GPL"

__version__ = "3.0+"

__maintainer__ = "Andrey Filippov"

__email__ = "andrey@elphel.com"

__status__ = "Development"

import os

import urlparse

import time

import socket

import shutil

import sys

path="/www/pages/img.jpeg"

PORT=8888

try:

    qs=urlparse.parse_qs(os.environ['QUERY_STRING'])

except:

    print("failed  in os.environ['QUERY_STRING']")

    qs={}

acquisition_parameters={

        "file_path":    "img.jpeg",

        "channel":      "0",

        "cmode":        "0",

        "bayer":        "None",

        "y_quality":    "None",

        "c_quality":    "None",

        "portrait":     "None",

        "gamma":        "None",

        "black":        "None",

        "colorsat_blue":"None",

        "colorsat_red": "None",

        "server_root":  "/www/pages/",

        "verbose":      "0"}

for k in qs:

    if k == "cmode":

        if qs[k][0].upper() == "JP4":

            acquisition_parameters[k] = "5"

        else:

            acquisition_parameters[k] = "0"

    else:

        acquisition_parameters[k] = qs[k][0]

cmd_str = "jpeg_acquire_write %s %s %s %s %s %s %s %s %s %s %s %s %s"%(

           str(acquisition_parameters["file_path"]),

           str(acquisition_parameters["channel"]),

           str(acquisition_parameters["cmode"]),

           str(acquisition_parameters["bayer"]),

           str(acquisition_parameters["y_quality"]),

           str(acquisition_parameters["c_quality"]),

           str(acquisition_parameters["portrait"]),

           str(acquisition_parameters["gamma"]),

           str(acquisition_parameters["black"]),

           str(acquisition_parameters["colorsat_blue"]),

           str(acquisition_parameters["colorsat_red"]),

           str(acquisition_parameters["server_root"]),

           str(acquisition_parameters["verbose"]))

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

sock.connect(('localhost', PORT))

sock.send(cmd_str)

reply = sock.recv(16384)  # limit reply to 16K

sock.close()

if (acquisition_parameters["cmode"] =="5"):

    path = path.replace("jpeg","jp4")

timestamp =str(time.time()).replace(".","_") # later use image timestamp

print("Content-Type: image/jpeg")

print("Content-Disposition: inline; filename=\"elphelimg_%s.jpeg\""%(timestamp))

print("Content-Length: %d\n"%(os.path.getsize(path))) # extra \n

with open(path, "r") as f:

    shutil.copyfileobj(f, sys.stdout)