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appadmin.py
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appadmin.py
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# -*- coding: utf-8 -*-
# ##########################################################
# ## make sure administrator is on localhost
# ###########################################################
import os
import socket
import datetime
import copy
import gluon.contenttype
import gluon.fileutils
# ## critical --- make a copy of the environment
global_env = copy.copy(globals())
global_env['datetime'] = datetime
http_host = request.env.http_host.split(':')[0]
remote_addr = request.env.remote_addr
try:
hosts = (http_host, socket.gethostname(),
socket.gethostbyname(http_host),
'::1','127.0.0.1','::ffff:127.0.0.1','knuth.luther.edu')
except:
hosts = (http_host, )
if request.env.http_x_forwarded_for or request.env.wsgi_url_scheme\
in ['https', 'HTTPS']:
session.secure()
elif (remote_addr not in hosts) and (remote_addr != "127.0.0.1"):
raise HTTP(200, T('appadmin is disabled because insecure channel'))
if (request.application=='admin' and not session.authorized) or \
(request.application!='admin' and not gluon.fileutils.check_credentials(request)):
redirect(URL('admin', 'default', 'index',
vars=dict(send=URL(args=request.args,vars=request.vars))))
ignore_rw = True
response.view = 'appadmin.html'
response.menu = [[T('design'), False, URL('admin', 'default', 'design',
args=[request.application])], [T('db'), False,
URL('index')], [T('state'), False,
URL('state')], [T('cache'), False,
URL('ccache')]]
# ##########################################################
# ## auxiliary functions
# ###########################################################
def get_databases(request):
dbs = {}
for (key, value) in global_env.items():
cond = False
try:
cond = isinstance(value, GQLDB)
except:
cond = isinstance(value, SQLDB)
if cond:
dbs[key] = value
return dbs
databases = get_databases(None)
def eval_in_global_env(text):
exec ('_ret=%s' % text, {}, global_env)
return global_env['_ret']
def get_database(request):
if request.args and request.args[0] in databases:
return eval_in_global_env(request.args[0])
else:
session.flash = T('invalid request')
redirect(URL('index'))
def get_table(request):
db = get_database(request)
if len(request.args) > 1 and request.args[1] in db.tables:
return (db, request.args[1])
else:
session.flash = T('invalid request')
redirect(URL('index'))
def get_query(request):
try:
return eval_in_global_env(request.vars.query)
except Exception:
return None
def query_by_table_type(tablename,db,request=request):
keyed = hasattr(db[tablename],'_primarykey')
if keyed:
firstkey = db[tablename][db[tablename]._primarykey[0]]
cond = '>0'
if firstkey.type in ['string', 'text']:
cond = '!=""'
qry = '%s.%s.%s%s' % (request.args[0], request.args[1], firstkey.name, cond)
else:
qry = '%s.%s.id>0' % tuple(request.args[:2])
return qry
# ##########################################################
# ## list all databases and tables
# ###########################################################
def index():
return dict(databases=databases)
# ##########################################################
# ## insert a new record
# ###########################################################
def insert():
(db, table) = get_table(request)
form = SQLFORM(db[table], ignore_rw=ignore_rw)
if form.accepts(request.vars, session):
response.flash = T('new record inserted')
return dict(form=form,table=db[table])
# ##########################################################
# ## list all records in table and insert new record
# ###########################################################
def download():
import os
db = get_database(request)
return response.download(request,db)
def csv():
import gluon.contenttype
response.headers['Content-Type'] = \
gluon.contenttype.contenttype('.csv')
db = get_database(request)
query = get_query(request)
if not query:
return None
response.headers['Content-disposition'] = 'attachment; filename=%s_%s.csv'\
% tuple(request.vars.query.split('.')[:2])
return str(db(query,ignore_common_filters=True).select())
def import_csv(table, file):
table.import_from_csv_file(file)
def select():
import re
db = get_database(request)
dbname = request.args[0]
regex = re.compile('(?P<table>\w+)\.(?P<field>\w+)=(?P<value>\d+)')
if len(request.args)>1 and hasattr(db[request.args[1]],'_primarykey'):
regex = re.compile('(?P<table>\w+)\.(?P<field>\w+)=(?P<value>.+)')
if request.vars.query:
match = regex.match(request.vars.query)
if match:
request.vars.query = '%s.%s.%s==%s' % (request.args[0],
match.group('table'), match.group('field'),
match.group('value'))
else:
request.vars.query = session.last_query
query = get_query(request)
if request.vars.start:
start = int(request.vars.start)
else:
start = 0
nrows = 0
stop = start + 100
table = None
rows = []
orderby = request.vars.orderby
if orderby:
orderby = dbname + '.' + orderby
if orderby == session.last_orderby:
if orderby[0] == '~':
orderby = orderby[1:]
else:
orderby = '~' + orderby
session.last_orderby = orderby
session.last_query = request.vars.query
form = FORM(TABLE(TR(T('Query:'), '', INPUT(_style='width:400px',
_name='query', _value=request.vars.query or '',
requires=IS_NOT_EMPTY(error_message=T("Cannot be empty")))), TR(T('Update:'),
INPUT(_name='update_check', _type='checkbox',
value=False), INPUT(_style='width:400px',
_name='update_fields', _value=request.vars.update_fields
or '')), TR(T('Delete:'), INPUT(_name='delete_check',
_class='delete', _type='checkbox', value=False), ''),
TR('', '', INPUT(_type='submit', _value='submit'))),
_action=URL(r=request,args=request.args))
if request.vars.csvfile != None:
try:
import_csv(db[request.vars.table],
request.vars.csvfile.file)
response.flash = T('data uploaded')
except Exception, e:
response.flash = DIV(T('unable to parse csv file'),PRE(str(e)))
if form.accepts(request.vars, formname=None):
# regex = re.compile(request.args[0] + '\.(?P<table>\w+)\.id\>0')
regex = re.compile(request.args[0] + '\.(?P<table>\w+)\..+')
match = regex.match(form.vars.query.strip())
if match:
table = match.group('table')
try:
nrows = db(query).count()
if form.vars.update_check and form.vars.update_fields:
db(query).update(**eval_in_global_env('dict(%s)'
% form.vars.update_fields))
response.flash = T('%s rows updated', nrows)
elif form.vars.delete_check:
db(query).delete()
response.flash = T('%s rows deleted', nrows)
nrows = db(query).count()
if orderby:
rows = db(query,ignore_common_filters=True).select(limitby=(start, stop), orderby=eval_in_global_env(orderby))
else:
rows = db(query,ignore_common_filters=True).select(limitby=(start, stop))
except Exception, e:
(rows, nrows) = ([], 0)
response.flash = DIV(T('Invalid Query'),PRE(str(e)))
return dict(
form=form,
table=table,
start=start,
stop=stop,
nrows=nrows,
rows=rows,
query=request.vars.query,
)
# ##########################################################
# ## edit delete one record
# ###########################################################
def update():
(db, table) = get_table(request)
keyed = hasattr(db[table],'_primarykey')
record = None
if keyed:
key = [f for f in request.vars if f in db[table]._primarykey]
if key:
record = db(db[table][key[0]] == request.vars[key[0]], ignore_common_filters=True).select().first()
else:
record = db(db[table].id == request.args(2),ignore_common_filters=True).select().first()
if not record:
qry = query_by_table_type(table, db)
session.flash = T('record does not exist')
redirect(URL('select', args=request.args[:1],
vars=dict(query=qry)))
if keyed:
for k in db[table]._primarykey:
db[table][k].writable=False
form = SQLFORM(db[table], record, deletable=True, delete_label=T('Check to delete'),
ignore_rw=ignore_rw and not keyed,
linkto=URL('select',
args=request.args[:1]), upload=URL(r=request,
f='download', args=request.args[:1]))
if form.accepts(request.vars, session):
session.flash = T('done!')
qry = query_by_table_type(table, db)
redirect(URL('select', args=request.args[:1],
vars=dict(query=qry)))
return dict(form=form,table=db[table])
# ##########################################################
# ## get global variables
# ###########################################################
def state():
return dict()
def ccache():
form = FORM(
P(TAG.BUTTON("Clear CACHE?", _type="submit", _name="yes", _value="yes")),
P(TAG.BUTTON("Clear RAM", _type="submit", _name="ram", _value="ram")),
P(TAG.BUTTON("Clear DISK", _type="submit", _name="disk", _value="disk")),
)
if form.accepts(request.vars, session):
clear_ram = False
clear_disk = False
session.flash = ""
if request.vars.yes:
clear_ram = clear_disk = True
if request.vars.ram:
clear_ram = True
if request.vars.disk:
clear_disk = True
if clear_ram:
cache.ram.clear()
session.flash += "Ram Cleared "
if clear_disk:
cache.disk.clear()
session.flash += "Disk Cleared"
redirect(URL(r=request))
try:
from guppy import hpy; hp=hpy()
except ImportError:
hp = False
import shelve, os, copy, time, math
from gluon import portalocker
ram = {
'entries': 0,
'bytes': 0,
'objects': 0,
'hits': 0,
'misses': 0,
'ratio': 0,
'oldest': time.time(),
'keys': []
}
disk = copy.copy(ram)
total = copy.copy(ram)
disk['keys'] = []
total['keys'] = []
def GetInHMS(seconds):
hours = math.floor(seconds / 3600)
seconds -= hours * 3600
minutes = math.floor(seconds / 60)
seconds -= minutes * 60
seconds = math.floor(seconds)
return (hours, minutes, seconds)
for key, value in cache.ram.storage.items():
if isinstance(value, dict):
ram['hits'] = value['hit_total'] - value['misses']
ram['misses'] = value['misses']
try:
ram['ratio'] = ram['hits'] * 100 / value['hit_total']
except (KeyError, ZeroDivisionError):
ram['ratio'] = 0
else:
if hp:
ram['bytes'] += hp.iso(value[1]).size
ram['objects'] += hp.iso(value[1]).count
ram['entries'] += 1
if value[0] < ram['oldest']:
ram['oldest'] = value[0]
ram['keys'].append((key, GetInHMS(time.time() - value[0])))
locker = open(os.path.join(request.folder,
'cache/cache.lock'), 'a')
portalocker.lock(locker, portalocker.LOCK_EX)
disk_storage = shelve.open(os.path.join(request.folder, 'cache/cache.shelve'))
try:
for key, value in disk_storage.items():
if isinstance(value, dict):
disk['hits'] = value['hit_total'] - value['misses']
disk['misses'] = value['misses']
try:
disk['ratio'] = disk['hits'] * 100 / value['hit_total']
except (KeyError, ZeroDivisionError):
disk['ratio'] = 0
else:
if hp:
disk['bytes'] += hp.iso(value[1]).size
disk['objects'] += hp.iso(value[1]).count
disk['entries'] += 1
if value[0] < disk['oldest']:
disk['oldest'] = value[0]
disk['keys'].append((key, GetInHMS(time.time() - value[0])))
finally:
portalocker.unlock(locker)
locker.close()
disk_storage.close()
total['entries'] = ram['entries'] + disk['entries']
total['bytes'] = ram['bytes'] + disk['bytes']
total['objects'] = ram['objects'] + disk['objects']
total['hits'] = ram['hits'] + disk['hits']
total['misses'] = ram['misses'] + disk['misses']
total['keys'] = ram['keys'] + disk['keys']
try:
total['ratio'] = total['hits'] * 100 / (total['hits'] + total['misses'])
except (KeyError, ZeroDivisionError):
total['ratio'] = 0
if disk['oldest'] < ram['oldest']:
total['oldest'] = disk['oldest']
else:
total['oldest'] = ram['oldest']
ram['oldest'] = GetInHMS(time.time() - ram['oldest'])
disk['oldest'] = GetInHMS(time.time() - disk['oldest'])
total['oldest'] = GetInHMS(time.time() - total['oldest'])
def key_table(keys):
return TABLE(
TR(TD(B('Key')), TD(B('Time in Cache (h:m:s)'))),
*[TR(TD(k[0]), TD('%02d:%02d:%02d' % k[1])) for k in keys],
**dict(_class='cache-keys',
_style="border-collapse: separate; border-spacing: .5em;"))
ram['keys'] = key_table(ram['keys'])
disk['keys'] = key_table(disk['keys'])
total['keys'] = key_table(total['keys'])
return dict(form=form, total=total,
ram=ram, disk=disk, object_stats=hp != False)