zkNavigator/fe.py at master · looprock/zkNavigator · GitHub

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#!/usr/bin/env python3
import sys
import os
import json
import re
import logging

logging.basicConfig()

from configparser import ConfigParser
from bottle import route, run, get, abort, post, request, template, redirect, default_app, debug, TEMPLATE_PATH, response
from kazoo.client import KazooClient
from kazoo.retry import KazooRetry
from time import time, localtime, strftime

if os.path.exists("./zk.conf"):
    parser = ConfigParser()
    parser.read("./zk.conf")
elif os.path.exists("/etc/zktools/zk.conf"):
    parser = ConfigParser()
    parser.read("/etc/zktools/zk.conf")
else:
    print("No config file found! Please create: ./zk.conf or /etc/zktools/zk.conf")
    sys.exit(1)

bind = parser.get("default", "bind").strip()
env = parser.get("default", "env").strip()
zkserver = os.getenv("ZK_HOST", parser.get(env, "server").strip())
zkport = os.getenv("ZK_PORT", parser.get(env, "port").strip())
defaultroot = parser.get(env, "root").strip().replace("/", "|")
enabledelete = parser.get("fe", "enabledelete").strip()
# these don't do anything yet
enableedit = parser.get("fe", "enabledelete").strip()
enablecreate = parser.get("fe", "enabledelete").strip()
enablerename = parser.get("fe", "enabledelete").strip()
enabledenvs = parser.get("fe", "enabledelete").strip()

server = os.getenv("ZK", "%s:%s" % (zkserver, zkport))
print("zookeper:", server)

kr = KazooRetry(max_tries=3)
zk = KazooClient(hosts=server)
zk.start()


def tpl(name, **kwargs):
    html = template(name, kwargs)
    return template("layout", html=html)


@route("/")
@route("/<root>")
def list(root=defaultroot):
    d = {}
    rr = root.replace("|", "/")
    if rr:
        if rr != "favicon.ico":
            x = kr(zk.get_children, rr)
            for i in x:
                try:
                    p = "%s/%s" % (rr, i)
                    y = kr(zk.get, p)[0]
                    d[i] = y
                except:
                    print("Couldn't get child from: %s" % p)
    b = [rr, d, enabledelete]
    return tpl("list", res=b)


@route("/json/")
@route("/json/<root>")
def list(root=defaultroot):
    response.content_type = "application/json"
    rr = root.replace("|", "/")
    if rr:
        if rr != "favicon.ico":
            x = kr(zk.get_children, rr)
            return json.dumps(x)


@route("/content/")
@route("/content/<root>")
def list(root=defaultroot):
    rr = root.replace("|", "/")
    if rr:
        if rr != "favicon.ico":
            x = kr(zk.get, rr)[0]
            return x


@route("/edit/<path>")
def edit(path):
    p = path.replace("|", "/")
    x = kr(zk.get, p)[0]
    y = [p, x]
    return tpl("edit", res=y)


@post("/editsub")
def editsub():
    node = request.forms.get("node").replace("|", "/")
    uf = node.replace("/", "|")
    rp = node.replace("|", "/")
    content = request.forms.get("content")
    try:
        kr(zk.set, rp, content)
        x = [uf, rp]
        return tpl("editsub", res=x)
    except:
        return "ERROR: unable to update %s" % node


@route("/create/<path>")
def create(path):
    return tpl("create", res=path)


@post("/createsub")
def createsub():
    path = request.forms.get("path").replace("|", "/")
    node = request.forms.get("node")
    content = request.forms.get("content")
    fpath = "%s/%s" % (path, node)
    try:
        if content:
            kr(zk.create, fpath, value=content, makepath=True)
        else:
            kr(zk.create, fpath, makepath=True)
        return tpl("createsub", res=fpath)
    except:
        return "ERROR: unable to create %s!" % fpath


@route("/delete/<path>")
def delete(path):
    p = path.replace("|", "/")
    try:
        p = path.replace("|", "/")
        kr(zk.delete, p, recursive=True)
        return tpl("delete", res=p)
    except:
        return "ERROR: unable to delete %s!" % p


run(host=bind, port=8080, debug=True)