#!/usr/bin/env python # # Copyright 2007 Google Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # """Simple datastore view and interactive console, for use in dev_appserver.""" import cgi import csv import cStringIO import datetime import logging import math import mimetypes import os import os.path import pickle import pprint import random import sys import time import traceback import types import urllib import urlparse import wsgiref.handlers try: from google.appengine.cron import groctimespecification from google.appengine.api import croninfo except ImportError: HAVE_CRON = False else: HAVE_CRON = True from google.appengine.api import apiproxy_stub_map from google.appengine.api import datastore from google.appengine.api import datastore_admin from google.appengine.api import datastore_types from google.appengine.api import datastore_errors from google.appengine.api import memcache from google.appengine.api.labs import taskqueue from google.appengine.api import users from google.appengine.ext import db from google.appengine.ext import webapp from google.appengine.ext.webapp import template _DEBUG = True def ustr(value): """Like str(), but UTF-8-encodes Unicode instead of failing.""" try: return str(value) except UnicodeError: return unicode(value).encode('UTF-8') class ImageHandler(webapp.RequestHandler): """Serves a static image. This exists because we don't want to burden the user with specifying a static file handler for the image resources used by the admin tool. """ PATH = '/images/.*' def get(self): image_name = os.path.basename(self.request.path) content_type, encoding = mimetypes.guess_type(image_name) if not content_type or not content_type.startswith('image/'): logging.debug('image_name=%r, content_type=%r, encoding=%r', image_name, content_type, encoding) self.error(404) return directory = os.path.dirname(__file__) path = os.path.join(directory, 'templates', 'images', image_name) try: image_stream = open(path, 'rb') except IOError, e: logging.error('Cannot open image %s: %s', image_name, e) self.error(404) return try: image_data = image_stream.read() finally: image_stream.close() self.response.headers['Content-Type'] = content_type self.response.out.write(image_data) class BaseRequestHandler(webapp.RequestHandler): """Supplies a common template generation function. When you call generate(), we augment the template variables supplied with the current user in the 'user' variable and the current webapp request in the 'request' variable. """ def generate(self, template_name, template_values={}): base_path = self.base_path() values = { 'application_name': self.request.environ['APPLICATION_ID'], 'user': users.get_current_user(), 'request': self.request, 'home_path': base_path + DefaultPageHandler.PATH, 'datastore_path': base_path + DatastoreQueryHandler.PATH, 'datastore_edit_path': base_path + DatastoreEditHandler.PATH, 'datastore_batch_edit_path': base_path + DatastoreBatchEditHandler.PATH, 'interactive_path': base_path + InteractivePageHandler.PATH, 'interactive_execute_path': base_path + InteractiveExecuteHandler.PATH, 'memcache_path': base_path + MemcachePageHandler.PATH, 'queues_path': base_path + QueuesPageHandler.PATH, 'xmpp_path': base_path + XMPPPageHandler.PATH, 'inboundmail_path': base_path + InboundMailPageHandler.PATH, } if HAVE_CRON: values['cron_path'] = base_path + CronPageHandler.PATH values.update(template_values) directory = os.path.dirname(__file__) path = os.path.join(directory, os.path.join('templates', template_name)) self.response.out.write(template.render(path, values, debug=_DEBUG)) def base_path(self): """Returns the base path of this admin app, which is chosen by the user. The user specifies which paths map to this application in their app.cfg. You can get that base path with this method. Combine with the constant paths specified by the classes to construct URLs. """ path = self.__class__.PATH return self.request.path[:-len(path)] def filter_url(self, args): """Filters the current URL to only have the given list of arguments. For example, if your URL is /search?q=foo&num=100&start=10, then self.filter_url(['start', 'num']) => /search?num=100&start=10 self.filter_url(['q']) => /search?q=10 self.filter_url(['random']) => /search? """ queries = [] for arg in args: value = self.request.get(arg) if value: queries.append(arg + '=' + urllib.quote_plus(self.request.get(arg))) return self.request.path + '?' + '&'.join(queries) def in_production(self): """Detects if app is running in production. Returns a boolean. """ server_software = os.environ['SERVER_SOFTWARE'] return not server_software.startswith('Development') class DefaultPageHandler(BaseRequestHandler): """Redirects to the Datastore application by default.""" PATH = '/' def get(self): if self.request.path.endswith('/'): base = self.request.path[:-1] else: base = self.request.path self.redirect(base + DatastoreQueryHandler.PATH) class InteractivePageHandler(BaseRequestHandler): """Shows our interactive console HTML.""" PATH = '/interactive' def get(self): self.generate('interactive.html') class InteractiveExecuteHandler(BaseRequestHandler): """Executes the Python code submitted in a POST within this context. For obvious reasons, this should only be available to administrators of the applications. """ PATH = InteractivePageHandler.PATH + '/execute' def post(self): save_stdout = sys.stdout results_io = cStringIO.StringIO() try: sys.stdout = results_io code = self.request.get('code') code = code.replace("\r\n", "\n") try: compiled_code = compile(code, '', 'exec') exec(compiled_code, globals()) except Exception, e: traceback.print_exc(file=results_io) finally: sys.stdout = save_stdout results = results_io.getvalue() self.generate('interactive-output.html', {'output': results}) class CronPageHandler(BaseRequestHandler): """Shows information about configured cron jobs in this application.""" PATH = '/cron' def get(self, now=None): """Shows template displaying the configured cron jobs.""" if not now: now = datetime.datetime.now() values = {'request': self.request} cron_info = _ParseCronYaml() values['cronjobs'] = [] values['now'] = str(now) if cron_info and cron_info.cron: for entry in cron_info.cron: job = {} values['cronjobs'].append(job) if entry.description: job['description'] = entry.description else: job['description'] = '(no description)' if entry.timezone: job['timezone'] = entry.timezone job['url'] = entry.url job['schedule'] = entry.schedule schedule = groctimespecification.GrocTimeSpecification(entry.schedule) matches = schedule.GetMatches(now, 3) job['times'] = [] for match in matches: job['times'].append({'runtime': match.strftime("%Y-%m-%d %H:%M:%SZ"), 'difference': str(match - now)}) self.generate('cron.html', values) class XMPPPageHandler(BaseRequestHandler): """Tests XMPP requests.""" PATH = '/xmpp' def get(self): """Shows template displaying the XMPP.""" xmpp_configured = True values = { 'xmpp_configured': xmpp_configured, 'request': self.request } self.generate('xmpp.html', values) class InboundMailPageHandler(BaseRequestHandler): """Tests Mail requests.""" PATH = '/inboundmail' def get(self): """Shows template displaying the Inbound Mail form.""" inboundmail_configured = True values = { 'inboundmail_configured': inboundmail_configured, 'request': self.request } self.generate('inboundmail.html', values) class QueuesPageHandler(BaseRequestHandler): """Shows information about configured (and default) task queues.""" PATH = '/queues' def __init__(self): self.stub = apiproxy_stub_map.apiproxy.GetStub('taskqueue') def get(self): """Shows template displaying the configured task queues.""" values = { 'request': self.request, 'queues': self.stub.GetQueues(), } self.generate('queues.html', values) def post(self): """Handle modifying actions and/or redirect to GET page.""" if self.request.get('action:flushqueue'): self.stub.FlushQueue(self.request.get('queue')) self.redirect(self.request.path_url) class TasksPageHandler(BaseRequestHandler): """Shows information about a queue's tasks.""" PATH = '/tasks' PAGE_SIZE = 20 def __init__(self): self.stub = apiproxy_stub_map.apiproxy.GetStub('taskqueue') def get(self): """Shows template displaying the queue's tasks.""" queue = self.request.get('queue') start = int(self.request.get('start', 0)) all_tasks = self.stub.GetTasks(queue) next_start = start + self.PAGE_SIZE tasks = all_tasks[start:next_start] current_page = int(start / self.PAGE_SIZE) + 1 pages = [] for number in xrange(int(math.ceil(len(all_tasks) / float(self.PAGE_SIZE)))): pages.append({ 'number': number + 1, 'start': number * self.PAGE_SIZE }) if not all_tasks[next_start:]: next_start = -1 prev_start = start - self.PAGE_SIZE if prev_start < 0: prev_start = -1 values = { 'request': self.request, 'queue_name': queue, 'tasks': tasks, 'start_base_url': self.filter_url(['queue']), 'prev_start': prev_start, 'next_start': next_start, 'pages': pages, 'current_page': current_page, } self.generate('tasks.html', values) def post(self): if self.request.get('action:deletetask'): self.stub.DeleteTask(self.request.get('queue'), self.request.get('task')) self.redirect(self.request.path_url + '?queue=' + self.request.get('queue')) return class MemcachePageHandler(BaseRequestHandler): """Shows stats about memcache and query form to get values.""" PATH = '/memcache' TYPES = ((str, str, 'String'), (unicode, unicode, 'Unicode String'), (bool, lambda value: MemcachePageHandler._ToBool(value), 'Boolean'), (int, int, 'Integer'), (long, long, 'Long Integer'), (float, float, 'Float')) DEFAULT_TYPESTR_FOR_NEW = 'String' @staticmethod def _ToBool(string_value): """Convert string to boolean value. Args: string_value: A string. Returns: Boolean. True if string_value is "true", False if string_value is "false". This is case-insensitive. Raises: ValueError: string_value not "true" or "false". """ string_value_low = string_value.lower() if string_value_low not in ('false', 'true'): raise ValueError('invalid literal for boolean: %s' % string_value) return string_value_low == 'true' def _GetValueAndType(self, key): """Fetch value from memcache and detect its type. Args: key: String Returns: (value, type), value is a Python object or None if the key was not set in the cache, type is a string describing the type of the value. """ try: value = memcache.get(key) except (pickle.UnpicklingError, AttributeError, EOFError, ImportError, IndexError), e: msg = 'Failed to retrieve value from cache: %s' % e return msg, 'error' if value is None: return None, self.DEFAULT_TYPESTR_FOR_NEW for typeobj, _, typestr in self.TYPES: if isinstance(value, typeobj): break else: typestr = 'pickled' value = pprint.pformat(value, indent=2) return value, typestr def _SetValue(self, key, type_, value): """Convert a string value and store the result in memcache. Args: key: String type_: String, describing what type the value should have in the cache. value: String, will be converted according to type_. Returns: Result of memcache.set(ket, converted_value). True if value was set. Raises: ValueError: Value can't be converted according to type_. """ for _, converter, typestr in self.TYPES: if typestr == type_: value = converter(value) break else: raise ValueError('Type %s not supported.' % type_) return memcache.set(key, value) def get(self): """Show template and prepare stats and/or key+value to display/edit.""" values = {'request': self.request, 'message': self.request.get('message')} edit = self.request.get('edit') key = self.request.get('key') if edit: key = edit values['show_stats'] = False values['show_value'] = False values['show_valueform'] = True values['types'] = [typestr for _, _, typestr in self.TYPES] elif key: values['show_stats'] = True values['show_value'] = True values['show_valueform'] = False else: values['show_stats'] = True values['show_valueform'] = False values['show_value'] = False if key: values['key'] = key values['value'], values['type'] = self._GetValueAndType(key) values['key_exists'] = values['value'] is not None if values['type'] in ('pickled', 'error'): values['writable'] = False else: values['writable'] = True if values['show_stats']: memcache_stats = memcache.get_stats() if not memcache_stats: memcache_stats = {'hits': 0, 'misses': 0, 'byte_hits': 0, 'items': 0, 'bytes': 0, 'oldest_item_age': 0} values['stats'] = memcache_stats try: hitratio = memcache_stats['hits'] * 100 / (memcache_stats['hits'] + memcache_stats['misses']) except ZeroDivisionError: hitratio = 0 values['hitratio'] = hitratio delta_t = datetime.timedelta(seconds=memcache_stats['oldest_item_age']) values['oldest_item_age'] = datetime.datetime.now() - delta_t self.generate('memcache.html', values) def _urlencode(self, query): """Encode a dictionary into a URL query string. In contrast to urllib this encodes unicode characters as UTF8. Args: query: Dictionary of key/value pairs. Returns: String. """ return '&'.join('%s=%s' % (urllib.quote_plus(k.encode('utf8')), urllib.quote_plus(v.encode('utf8'))) for k, v in query.iteritems()) def post(self): """Handle modifying actions and/or redirect to GET page.""" next_param = {} if self.request.get('action:flush'): if memcache.flush_all(): next_param['message'] = 'Cache flushed, all keys dropped.' else: next_param['message'] = 'Flushing the cache failed. Please try again.' elif self.request.get('action:display'): next_param['key'] = self.request.get('key') elif self.request.get('action:edit'): next_param['edit'] = self.request.get('key') elif self.request.get('action:delete'): key = self.request.get('key') result = memcache.delete(key) if result == memcache.DELETE_NETWORK_FAILURE: next_param['message'] = ('ERROR: Network failure, key "%s" not deleted.' % key) elif result == memcache.DELETE_ITEM_MISSING: next_param['message'] = 'Key "%s" not in cache.' % key elif result == memcache.DELETE_SUCCESSFUL: next_param['message'] = 'Key "%s" deleted.' % key else: next_param['message'] = ('Unknown return value. Key "%s" might still ' 'exist.' % key) elif self.request.get('action:save'): key = self.request.get('key') value = self.request.get('value') type_ = self.request.get('type') next_param['key'] = key try: if self._SetValue(key, type_, value): next_param['message'] = 'Key "%s" saved.' % key else: next_param['message'] = 'ERROR: Failed to save key "%s".' % key except ValueError, e: next_param['message'] = 'ERROR: Unable to encode value: %s' % e elif self.request.get('action:cancel'): next_param['key'] = self.request.get('key') else: next_param['message'] = 'Unknown action.' next = self.request.path_url if next_param: next = '%s?%s' % (next, self._urlencode(next_param)) self.redirect(next) class DatastoreRequestHandler(BaseRequestHandler): """The base request handler for our datastore admin pages. We provide utility functions for quering the datastore and infering the types of entity properties. """ def start(self): """Returns the santized "start" argument from the URL.""" return self.request.get_range('start', min_value=0, default=0) def num(self): """Returns the sanitized "num" argument from the URL.""" return self.request.get_range('num', min_value=1, max_value=100, default=10) def execute_query(self, start=0, num=0, no_order=False): """Parses the URL arguments and executes the query. We return a tuple (list of entities, total entity count). If the appropriate URL arguments are not given, we return an empty set of results and 0 for the entity count. """ kind = self.request.get('kind') namespace = self.request.get('namespace') if not namespace: namespace = None if not kind: return ([], 0) query = datastore.Query(kind, _namespace=namespace) order = self.request.get('order') order_type = self.request.get('order_type') if order and order_type: order_type = DataType.get_by_name(order_type).python_type() if order.startswith('-'): direction = datastore.Query.DESCENDING order = order[1:] else: direction = datastore.Query.ASCENDING try: query.Order((order, order_type, direction)) except datastore_errors.BadArgumentError: pass if not start: start = self.start() if not num: num = self.num() total = query.Count() entities = query.Get(start + num)[start:] return (entities, total) def get_key_values(self, entities): """Returns the union of key names used by the given list of entities. We return the union as a dictionary mapping the key names to a sample value from one of the entities for the key name. """ key_dict = {} for entity in entities: for key, value in entity.iteritems(): if key_dict.has_key(key): key_dict[key].append(value) else: key_dict[key] = [value] return key_dict class DatastoreQueryHandler(DatastoreRequestHandler): """Our main request handler that executes queries and lists entities. We use execute_query() in our base request handler to parse URL arguments and execute the datastore query. """ PATH = '/datastore' def get_kinds(self): """Get sorted list of kind names the datastore knows about. This should only be called in the development environment as GetSchema is expensive and no caching is done. """ schema = datastore_admin.GetSchema() kinds = [] for entity_proto in schema: kinds.append(entity_proto.key().path().element_list()[-1].type()) kinds.sort() return kinds def get(self): """Formats the results from execute_query() for datastore.html. The only complex part of that process is calculating the pager variables to generate the Gooooogle pager at the bottom of the page. """ result_set, total = self.execute_query() key_values = self.get_key_values(result_set) keys = key_values.keys() keys.sort() headers = [] for key in keys: sample_value = key_values[key][0] headers.append({ 'name': key, 'type': DataType.get(sample_value).name(), }) entities = [] edit_path = self.base_path() + DatastoreEditHandler.PATH for entity in result_set: attributes = [] for key in keys: if entity.has_key(key): raw_value = entity[key] data_type = DataType.get(raw_value) value = data_type.format(raw_value) short_value = data_type.short_format(raw_value) additional_html = data_type.additional_short_value_html(raw_value) else: value = '' short_value = '' additional_html = '' attributes.append({ 'name': key, 'value': value, 'short_value': short_value, 'additional_html': additional_html, }) entities.append({ 'key': str(entity.key()), 'key_name': entity.key().name(), 'key_id': entity.key().id(), 'shortened_key': str(entity.key())[:8] + '...', 'attributes': attributes, 'edit_uri': edit_path + '?key=' + str(entity.key()) + '&kind=' + urllib.quote(self.request.get('kind')) + '&next=' + urllib.quote(self.request.uri), }) start = self.start() num = self.num() max_pager_links = 8 current_page = start / num num_pages = int(math.ceil(total * 1.0 / num)) page_start = max(math.floor(current_page - max_pager_links / 2), 0) page_end = min(page_start + max_pager_links, num_pages) pages = [] for page in range(page_start + 1, page_end + 1): pages.append({ 'number': page, 'start': (page - 1) * num, }) current_page += 1 in_production = self.in_production() if in_production: kinds = None else: kinds = self.get_kinds() values = { 'request': self.request, 'in_production': in_production, 'kinds': kinds, 'kind': self.request.get('kind'), 'order': self.request.get('order'), 'headers': headers, 'entities': entities, 'message': self.request.get('msg'), 'pages': pages, 'current_page': current_page, 'namespace': self.request.get('namespace'), 'num': num, 'next_start': -1, 'prev_start': -1, 'start': start, 'total': total, 'start_base_url': self.filter_url(['kind', 'order', 'order_type', 'num']), 'order_base_url': self.filter_url(['kind', 'num']), } if current_page > 1: values['prev_start'] = int((current_page - 2) * num) if current_page < num_pages: values['next_start'] = int(current_page * num) self.generate('datastore.html', values) class DatastoreBatchEditHandler(DatastoreRequestHandler): """Request handler for a batch operation on entities. Supports deleting multiple entities by key, then redirecting to another url. """ PATH = DatastoreQueryHandler.PATH + '/batchedit' def post(self): kind = self.request.get('kind') keys = [] index = 0 num_keys = int(self.request.get('numkeys')) for i in xrange(1, num_keys+1): key = self.request.get('key%d' % i) if key: keys.append(key) if self.request.get('action') == 'Delete': num_deleted = 0 for key in keys: datastore.Delete(datastore.Key(key)) num_deleted = num_deleted + 1 message = '%d entit%s deleted.' % ( num_deleted, ('ies', 'y')[num_deleted == 1]) self.redirect( '%s&msg=%s' % (self.request.get('next'), urllib.quote_plus(message))) return self.error(404) class DatastoreEditHandler(DatastoreRequestHandler): """Request handler for the entity create/edit form. We determine how to generate a form to edit an entity by doing a query on the entity kind and looking at the set of keys and their types in the result set. We use the DataType subclasses for those introspected types to generate the form and parse the form results. """ PATH = DatastoreQueryHandler.PATH + '/edit' def get(self): entity_key = self.request.get('key') if entity_key: key_instance = datastore.Key(entity_key) entity_key_name = key_instance.name() entity_key_id = key_instance.id() parent_key = key_instance.parent() kind = key_instance.kind() entity = datastore.Get(key_instance) sample_entities = [entity] else: kind = self.request.get('kind') sample_entities = self.execute_query()[0] if len(sample_entities) < 1: next_uri = self.request.get('next') kind_param = 'kind=%s' % kind if not kind_param in next_uri: if '?' in next_uri: next_uri += '&' + kind_param else: next_uri += '?' + kind_param self.redirect(next_uri) return if not entity_key: key_instance = None entity_key_name = None entity_key_id = None parent_key = None entity = None if parent_key: parent_kind = parent_key.kind() parent_key_string = PseudoBreadcrumbs(parent_key) else: parent_kind = None parent_key_string = None fields = [] key_values = self.get_key_values(sample_entities) for key, sample_values in key_values.iteritems(): if entity and entity.has_key(key): data_type = DataType.get(entity[key]) else: data_type = DataType.get(sample_values[0]) name = data_type.name() + "|" + key if entity and entity.has_key(key): value = entity[key] else: value = None field = data_type.input_field(name, value, sample_values) fields.append((key, data_type.name(), field)) self.generate('datastore_edit.html', { 'kind': kind, 'key': entity_key, 'key_name': entity_key_name, 'key_id': entity_key_id, 'fields': fields, 'focus': self.request.get('focus'), 'namespace': self.request.get('namespace'), 'next': self.request.get('next'), 'parent_key': parent_key, 'parent_kind': parent_kind, 'parent_key_string': parent_key_string, }) def post(self): kind = self.request.get('kind') entity_key = self.request.get('key') if entity_key: if self.request.get('action') == 'Delete': datastore.Delete(datastore.Key(entity_key)) self.redirect(self.request.get('next')) return entity = datastore.Get(datastore.Key(entity_key)) else: namespace = self.request.get('namespace') if not namespace: namespace = None entity = datastore.Entity(kind, _namespace=namespace) args = self.request.arguments() for arg in args: bar = arg.find('|') if bar > 0: data_type_name = arg[:bar] field_name = arg[bar + 1:] form_value = self.request.get(arg) data_type = DataType.get_by_name(data_type_name) if entity and entity.has_key(field_name): old_formatted_value = data_type.format(entity[field_name]) if old_formatted_value == ustr(form_value): continue if len(form_value) > 0: value = data_type.parse(form_value) entity[field_name] = value elif entity.has_key(field_name): del entity[field_name] datastore.Put(entity) self.redirect(self.request.get('next')) class DataType(object): """A DataType represents a data type in the datastore. Each DataType subtype defines four methods: format: returns a formatted string for a datastore value input_field: returns a string HTML element for this DataType name: the friendly string name of this DataType parse: parses the formatted string representation of this DataType python_type: the canonical Python type for this datastore type We use DataType instances to display formatted values in our result lists, and we uses input_field/format/parse to generate forms and parse the results from those forms to allow editing of entities. """ @staticmethod def get(value): return _DATA_TYPES[value.__class__] @staticmethod def get_by_name(name): return _NAMED_DATA_TYPES[name] def format(self, value): return ustr(value) def short_format(self, value): return self.format(value) def input_field(self, name, value, sample_values): if value is not None: string_value = self.format(value) else: string_value = '' return '' % (cgi.escape(ustr(self.name())), cgi.escape(ustr(name)), self.input_field_size(), cgi.escape(string_value, True)) def input_field_size(self): return 30 def additional_short_value_html(self, unused_value): return '' class StringType(DataType): def format(self, value): return ustr(value) def input_field(self, name, value, sample_values): value = ustr(value) sample_values = [ustr(s) for s in sample_values] multiline = False if value: multiline = len(value) > 255 or value.find('\n') >= 0 if not multiline: for sample_value in sample_values: if sample_value and (len(sample_value) > 255 or sample_value.find('\n') >= 0): multiline = True break if multiline: if not value: value = '' return '' % (cgi.escape(name), cgi.escape(value)) else: return DataType.input_field(self, name, value, sample_values) def name(self): return 'string' def parse(self, value): return value def python_type(self): return str def input_field_size(self): return 50 class TextType(StringType): def name(self): return 'Text' def input_field(self, name, value, sample_values): return '' % (cgi.escape(ustr(name)), cgi.escape(ustr(value))) def parse(self, value): return datastore_types.Text(value) def python_type(self): return datastore_types.Text class BlobType(StringType): def name(self): return 'Blob' def input_field(self, name, value, sample_values): return '<binary>' def format(self, value): return '' def python_type(self): return datastore_types.Blob class TimeType(DataType): _FORMAT = '%Y-%m-%d %H:%M:%S' def format(self, value): return value.strftime(TimeType._FORMAT) def name(self): return 'datetime' def parse(self, value): return datetime.datetime(*(time.strptime(ustr(value), TimeType._FORMAT)[0:6])) def python_type(self): return datetime.datetime class ListType(DataType): def format(self, value): value_file = cStringIO.StringIO() try: writer = csv.writer(value_file) writer.writerow(map(ustr, value)) return ustr(value_file.getvalue()) finally: value_file.close() def name(self): return 'list' def parse(self, value): value_file = cStringIO.StringIO(ustr(value)) try: reader = csv.reader(value_file) fields = [] for field in reader.next(): if isinstance(field, str): field = field.decode('utf-8') fields.append(field) return fields finally: value_file.close() def python_type(self): return list class BoolType(DataType): def name(self): return 'bool' def input_field(self, name, value, sample_values): selected = { None: '', False: '', True: '' }; selected[value] = "selected" return """""" % (cgi.escape(self.name()), cgi.escape(name), selected[None], selected[False], selected[True]) def parse(self, value): if value.lower() is 'true': return True if value.lower() is 'false': return False return bool(int(value)) def python_type(self): return bool class NumberType(DataType): def input_field_size(self): return 10 class IntType(NumberType): def name(self): return 'int' def parse(self, value): return int(value) def python_type(self): return int class LongType(NumberType): def name(self): return 'long' def parse(self, value): return long(value) def python_type(self): return long class FloatType(NumberType): def name(self): return 'float' def parse(self, value): return float(value) def python_type(self): return float class UserType(DataType): def name(self): return 'User' def parse(self, value): return users.User(value) def python_type(self): return users.User def input_field_size(self): return 15 class ReferenceType(DataType): def name(self): return 'Key' def short_format(self, value): return str(value)[:8] + '...' def parse(self, value): return datastore_types.Key(value) def python_type(self): return datastore_types.Key def input_field(self, name, value, sample_values): if value is not None: string_value = self.format(value) else: string_value = '' html = '' % (cgi.escape(self.name()), cgi.escape(name), self.input_field_size(), cgi.escape(string_value, True)) if value: html += '
%s' % (cgi.escape(string_value, True), cgi.escape(PseudoBreadcrumbs(value), True)) return html def input_field_size(self): return 85 def additional_short_value_html(self, value): if not value: return '' return '
%s' % (cgi.escape(str(value), True), cgi.escape(PseudoBreadcrumbs(value), True)) class EmailType(StringType): def name(self): return 'Email' def parse(self, value): return datastore_types.Email(value) def python_type(self): return datastore_types.Email class CategoryType(StringType): def name(self): return 'Category' def parse(self, value): return datastore_types.Category(value) def python_type(self): return datastore_types.Category class LinkType(StringType): def name(self): return 'Link' def parse(self, value): return datastore_types.Link(value) def python_type(self): return datastore_types.Link class GeoPtType(DataType): def name(self): return 'GeoPt' def parse(self, value): return datastore_types.GeoPt(value) def python_type(self): return datastore_types.GeoPt class ImType(DataType): def name(self): return 'IM' def parse(self, value): return datastore_types.IM(value) def python_type(self): return datastore_types.IM class PhoneNumberType(StringType): def name(self): return 'PhoneNumber' def parse(self, value): return datastore_types.PhoneNumber(value) def python_type(self): return datastore_types.PhoneNumber class PostalAddressType(StringType): def name(self): return 'PostalAddress' def parse(self, value): return datastore_types.PostalAddress(value) def python_type(self): return datastore_types.PostalAddress class RatingType(NumberType): def name(self): return 'Rating' def parse(self, value): return datastore_types.Rating(value) def python_type(self): return datastore_types.Rating class NoneType(DataType): def name(self): return 'None' def parse(self, value): return None def python_type(self): return None def format(self, value): return 'None' class BlobKeyType(StringType): def name(self): return 'BlobKey' def parse(self, value): return datastore_types.BlobKey(value) def python_type(self): return datastore_types.BlobKey _DATA_TYPES = { types.NoneType: NoneType(), types.StringType: StringType(), types.UnicodeType: StringType(), datastore_types.Text: TextType(), datastore_types.Blob: BlobType(), types.BooleanType: BoolType(), types.IntType: IntType(), types.LongType: LongType(), types.FloatType: FloatType(), datetime.datetime: TimeType(), users.User: UserType(), datastore_types.Key: ReferenceType(), types.ListType: ListType(), datastore_types.Email: EmailType(), datastore_types.Category: CategoryType(), datastore_types.Link: LinkType(), datastore_types.GeoPt: GeoPtType(), datastore_types.IM: ImType(), datastore_types.PhoneNumber: PhoneNumberType(), datastore_types.PostalAddress: PostalAddressType(), datastore_types.Rating: RatingType(), datastore_types.BlobKey: BlobKeyType(), datastore_types.ByteString: StringType(), } _NAMED_DATA_TYPES = {} for data_type in _DATA_TYPES.values(): _NAMED_DATA_TYPES[data_type.name()] = data_type def _ParseCronYaml(): """Loads the cron.yaml file and parses it. The CWD of the dev_appserver is the root of the application here. Returns a dict representing the contents of cron.yaml. """ cronyaml_files = 'cron.yaml', 'cron.yml' for cronyaml in cronyaml_files: try: fh = open(cronyaml, "r") except IOError: continue try: cron_info = croninfo.LoadSingleCron(fh) return cron_info finally: fh.close() return None def PseudoBreadcrumbs(key): """Return a string that looks like the breadcrumbs (for key properties). Args: key: A datastore_types.Key object. Returns: A string looking like breadcrumbs. """ path = key.to_path() parts = [] for i in range(0, len(path)//2): kind = path[i*2] if isinstance(kind, unicode): kind = kind.encode('utf8') value = path[i*2 + 1] if isinstance(value, (int, long)): parts.append('%s: id=%d' % (kind, value)) else: if isinstance(value, unicode): value = value.encode('utf8') parts.append('%s: name=%s' % (kind, value)) return ' > '.join(parts) def main(): handlers = [ ('.*' + DatastoreQueryHandler.PATH, DatastoreQueryHandler), ('.*' + DatastoreEditHandler.PATH, DatastoreEditHandler), ('.*' + DatastoreBatchEditHandler.PATH, DatastoreBatchEditHandler), ('.*' + InteractivePageHandler.PATH, InteractivePageHandler), ('.*' + InteractiveExecuteHandler.PATH, InteractiveExecuteHandler), ('.*' + MemcachePageHandler.PATH, MemcachePageHandler), ('.*' + ImageHandler.PATH, ImageHandler), ('.*' + QueuesPageHandler.PATH, QueuesPageHandler), ('.*' + TasksPageHandler.PATH, TasksPageHandler), ('.*' + XMPPPageHandler.PATH, XMPPPageHandler), ('.*' + InboundMailPageHandler.PATH, InboundMailPageHandler), ('.*', DefaultPageHandler), ] if HAVE_CRON: handlers.insert(0, ('.*' + CronPageHandler.PATH, CronPageHandler)) application = webapp.WSGIApplication(handlers, debug=_DEBUG) wsgiref.handlers.CGIHandler().run(application) import django if django.VERSION[:2] < (0, 97): from django.template import defaultfilters def safe(text, dummy=None): return text defaultfilters.register.filter("safe", safe) if __name__ == '__main__': main()