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"""
Rhizi web API
@deprecated: destined to split into rz_api_rest & rz_api_websocket
"""
from datetime import datetime
from flask import Flask
from flask import escape
from flask import jsonify
from flask import make_response
from flask import redirect
from flask import render_template
from flask import request
from flask import send_from_directory
from flask import session
from flask import url_for
import flask
import json
import logging
import os
import traceback
import crypt_util
import db_controller as dbc
from db_op import DBO_add_node_set
from db_op import DBO_diff_commit__topo
from db_op import DBO_load_link_set
from db_op import DBO_match_node_id_set
from db_op import DBO_match_node_set_by_id_attribute
from db_op import DBO_rz_clone
from model.graph import Topo_Diff
from model.model import Link
from rz_api_common import __sanitize_input
from rz_api_common import sanitize_input__topo_diff
from rz_api_rest import common_resp_handle
from rz_kernel import RZ_Kernel
from rz_req_handling import make_json_response
log = logging.getLogger('rhizi')
db_ctl = None # injected: DB controller
def __common_exec(op, on_success=common_resp_handle, on_error=common_resp_handle):
"""
@param on_success: should return a Flask Response object
@param on_error: should return a Flask Response object
"""
try:
op_ret = db_ctl.exec_op(op)
return on_success(op_ret)
except Exception as e:
log.error(e.message)
log.error(traceback.print_exc())
return on_error(error='error occurred')
def load_node_set_by_id_attr():
"""
load node-set by ID attribute
@param id_set: list of node ids to match id attribute against
@return: a list of nodes whose id attribute matches 'id' or
an empty list if the requested node is not found
@raise exception: on error
"""
req_json = request.get_json()
id_set = req_json['id_set']
__sanitize_input(id_set)
return __load_node_set_by_id_attr_common(id_set)
def __load_node_set_by_id_attr_common(id_set):
"""
@param f_k: optional attribute filter key
@param f_vset: possible key values to match against
"""
op = DBO_match_node_set_by_id_attribute(id_set=id_set)
try:
n_set = db_ctl.exec_op(op)
return common_resp_handle(data=n_set)
except Exception as e:
log.exception(e)
return common_resp_handle(error='unable to load node with ids: {0}'.format(id_set))
def match_node_set_by_attr_filter_map(attr_filter_map):
"""
@param attr_filter_map
@return: a set of node DB id's
"""
op = DBO_match_node_id_set(attr_filter_map)
return __common_exec(op)
def load_link_set_by_link_ptr_set():
def deserialize_param_set(param_json):
l_ptr_set_raw = param_json['link_ptr_set']
__sanitize_input(l_ptr_set_raw)
l_ptr_set = []
for lptr_dict in l_ptr_set_raw:
src_id = lptr_dict.get('__src_id')
dst_id = lptr_dict.get('__dst_id')
l_ptr_set += [Link.Link_Ptr(src_id=src_id, dst_id=dst_id) ]
return l_ptr_set
l_ptr_set = deserialize_param_set(request.get_json())
op = DBO_load_link_set.init_from_link_ptr_set(l_ptr_set)
return __common_exec(op)
def rz_clone():
def on_success(op_op_ret_pair):
# serialize Topo_Diff before including in response
for _, op_ret in op_op_ret_pair: # discard op
assert isinstance(op_ret, Topo_Diff), 'rz_clone: op_ret != Topo_Diff'
topo_diff = op_ret
topo_diff_json = topo_diff.to_json_dict()
return common_resp_handle(topo_diff_json)
op = DBO_rz_clone()
return __common_exec(op, on_success=on_success)
def diff_commit__set():
"""
commit a diff set
"""
def sanitize_input(req):
diff_set_dict = request.get_json()['diff_set']
topo_diff_dict = diff_set_dict['__diff_set_topo'][0]
topo_diff = Topo_Diff.from_json_dict(topo_diff_dict)
sanitize_input__topo_diff(topo_diff)
return topo_diff;
topo_diff = sanitize_input(request)
op = DBO_diff_commit__topo(topo_diff)
return __common_exec(op)
def monitor__server_info():
"""
server monitor stub
"""
dt = datetime.now()
return "<html><body>" + \
"<h1>Rhizi Server v0.1</h1><p>" + \
"date: " + dt.strftime("%Y-%m-%d") + "<br>" + \
"time: " + dt.strftime("%H:%M:%S") + "<br>" + \
"</p></body></html>"
def index():
session_username = session.get('username')
username = escape(session_username if session_username != None else "Anonymous Stranger")
return render_template('index.html', username=username)
def login():
def sanitize_input(req):
req_json = request.get_json()
u = req_json['username']
p = req_json['password']
return u, p
if request.method == 'POST':
try:
u, p = sanitize_input(request)
except:
log.warn('failed to sanitize inputs. request: %s' % request)
return make_json_response(status=401) # return empty response
try:
crypt_util.validate_login(flask.current_app.rz_config, u, p)
except Exception as e:
# login failed
log.warn('login: unauthorized: user: %s' % (u))
return make_json_response(status=401) # return empty response
# login successful
session['username'] = u
log.debug('login: success: user: %s' % (u))
return make_json_response(status=200) # return empty response
if request.method == 'GET':
return render_template('login.html')
def logout():
# remove the username from the session if it's there
u = session.pop('username', None)
log.debug('logout: success: user: %s' % (u))
return redirect(url_for('login'))
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