"""
This file is part of the web2py Web Framework
Copyrighted by Massimo Di Pierro <mdipierro@cs.depaul.edu>
License: LGPLv3 (http://www.gnu.org/licenses/lgpl.html)
"""
import datetime
from storage import Storage
from html import TAG
from html import xmlescape
from languages import lazyT
import contrib.rss2 as rss2
try:
import json as json_parser # try stdlib (Python 2.6)
except ImportError:
try:
import simplejson as json_parser # try external module
except:
import contrib.simplejson as json_parser # fallback to pure-Python module
def custom_json(o):
if hasattr(o,'custom_json') and callable(o.custom_json):
return o.custom_json()
if isinstance(o, (datetime.date,
datetime.datetime,
datetime.time)):
return o.isoformat()[:19].replace('T',' ')
elif isinstance(o, (int, long)):
return int(o)
elif isinstance(o, lazyT):
return str(o)
elif hasattr(o,'as_list') and callable(o.as_list):
return o.as_list()
elif hasattr(o,'as_dict') and callable(o.as_dict):
return o.as_dict()
else:
raise TypeError(repr(o) + " is not JSON serializable")
def xml_rec(value, key):
if hasattr(value,'custom_xml') and callable(value.custom_xml):
return value.custom_xml()
elif isinstance(value, (dict, Storage)):
return TAG[key](*[TAG[k](xml_rec(v, '')) for k, v in value.items()])
elif isinstance(value, list):
return TAG[key](*[TAG.item(xml_rec(item, '')) for item in value])
elif hasattr(value,'as_list') and callable(value.as_list):
return str(xml_rec(value.as_list(),''))
elif hasattr(value,'as_dict') and callable(value.as_dict):
return str(xml_rec(value.as_dict(),''))
else:
return xmlescape(value)
def xml(value, encoding='UTF-8', key='document'):
return ('<?xml version="1.0" encoding="%s"?>' % encoding) + str(xml_rec(value,key))
def json(value,default=custom_json):
return json_parser.dumps(value,default=default)
def csv(value):
return ''
def rss(feed):
if not 'entries' in feed and 'items' in feed:
feed['entries'] = feed['items']
now=datetime.datetime.now()
rss = rss2.RSS2(title = feed['title'],
link = str(feed['link']),
description = feed['description'],
lastBuildDate = feed.get('created_on', now),
items = [rss2.RSSItem(\
title=entry['title'],
link=str(entry['link']),
description=entry['description'],
pubDate=entry.get('created_on', now)
)\
for entry in feed['entries']
]
)
return rss2.dumps(rss)