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"""
Rhizi web API
@deprecated: destined to split into rz_api_rest & rz_api_websocket
"""
from flask import current_app
from flask import escape
from flask import render_template
from flask import request
from flask import session
import logging
import traceback
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, map_rzdoc_name_to_rzdoc_id
from rz_api_common import sanitize_input__topo_diff
from rz_api_rest import common_resp_handle
from neo4j_cypher import QT_Node_Filter__Doc_ID_Label
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 index():
# fetch rz_username for welcome message
email_address = session.get('username')
rz_username = "Anonymous Stranger"
role_set = []
if None != email_address: # session cookie passed & contains uid (email_address)
try:
uid, u_account = current_app.user_db.lookup_user__by_email_address(email_address)
role_set = u_account.role_set
rz_username = escape(u_account.rz_username)
except Exception as e:
# may occur on user_db reset or malicious cookie != stale cookie,
# for which the user would at least be known to the user_db
log.exception(e)
# establish rz_config template values
client_POV_server_name = request.headers.get('X-Forwarded-Host') # first probe for reverse proxy headers
if None == client_POV_server_name:
client_POV_server_name = request.headers.get('Host') # otherwise use Host: header
assert None != client_POV_server_name, 'failed to establish hostname, unable to construct rz_config'
hostname = client_POV_server_name
port = 80
if ':' in client_POV_server_name:
hostname = client_POV_server_name.split(':')[0]
port = client_POV_server_name.split(':')[1]
return render_template('index.html',
rz_username=rz_username,
rz_config__hostname=hostname,
rz_config__port=port,
rz_config__optimized_main='true' if current_app.rz_config.optimized_main else 'false',
rz_config__role_set=role_set)
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