initial commit

2011-11-22 23:30:42 -06:00
commit d421c1321b
580 changed files with 115527 additions and 0 deletions
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+"""
+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, quote=True):
+    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, '',quote)) \
+                              for k, v in value.items()])
+    elif isinstance(value, list):
+        return TAG[key](*[TAG.item(xml_rec(item, '',quote)) for item in value])
+    elif hasattr(value,'as_list') and callable(value.as_list):
+        return str(xml_rec(value.as_list(),'',quote))
+    elif hasattr(value,'as_dict') and callable(value.as_dict):
+        return str(xml_rec(value.as_dict(),'',quote))
+    else:
+        return xmlescape(value,quote)
+
+
+def xml(value, encoding='UTF-8', key='document', quote=True):
+    return ('<?xml version="1.0" encoding="%s"?>' % encoding) + str(xml_rec(value,key,quote))
+
+
+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)
+
+
+