view Resources/Samples/Python/RestToolbox.py @ 895:7e8cde5905fd plugins

allow superposition of REST handlers
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 16 Jun 2014 17:47:58 +0200
parents 44382c8bcd15
children 4e9d517503ae
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# Orthanc - A Lightweight, RESTful DICOM Store
# Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
# Belgium
#
# 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/>.


import httplib2
import json
from urllib import urlencode

_credentials = None

def SetCredentials(username, password):
    global _credentials
    _credentials = (username, password)

def _SetupCredentials(h):
    global _credentials
    if _credentials != None:
        h.add_credentials(_credentials[0], _credentials[1])

def DoGet(uri, data = {}, interpretAsJson = True):
    d = ''
    if len(data.keys()) > 0:
        d = '?' + urlencode(data)

    h = httplib2.Http()
    _SetupCredentials(h)
    resp, content = h.request(uri + d, 'GET')
    if not (resp.status in [ 200 ]):
        raise Exception(resp.status)
    elif not interpretAsJson:
        return content
    else:
        try:
            return json.loads(content)
        except:
            return content


def _DoPutOrPost(uri, method, data, contentType):
    h = httplib2.Http()
    _SetupCredentials(h)

    if isinstance(data, str):
        body = data
        if len(contentType) != 0:
            headers = { 'content-type' : contentType }
        else:
            headers = { 'content-type' : 'text/plain' }
    else:
        body = json.dumps(data)
        headers = { 'content-type' : 'application/json' }
    
    resp, content = h.request(
        uri, method,
        body = body,
        headers = headers)

    if not (resp.status in [ 200, 302 ]):
        raise Exception(resp.status)
    else:
        try:
            return json.loads(content)
        except:
            return content


def DoDelete(uri):
    h = httplib2.Http()
    _SetupCredentials(h)
    resp, content = h.request(uri, 'DELETE')

    if not (resp.status in [ 200 ]):
        raise Exception(resp.status)
    else:
        try:
            return json.loads(content)
        except:
            return content


def DoPut(uri, data = {}, contentType = ''):
    return _DoPutOrPost(uri, 'PUT', data, contentType)


def DoPost(uri, data = {}, contentType = ''):
    return _DoPutOrPost(uri, 'POST', data, contentType)