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flickr.py
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flickr.py
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"""
Flickr Store
TiddlyWeb StorageInterface interfacing with Flickr
Tiddler Mapping:
* bag ~ user
* title ~ ID
* created ~ date uploaded
* tags ~ tags
* text ~ description
TODO:
* cache tiddlers when generating bag
"""
import urllib2
import logging
import simplejson
from tiddlyweb.model.tiddler import Tiddler
from tiddlyweb.stores import StorageInterface
class Store(StorageInterface):
def __init__(self, environ=None):
super(Store, self).__init__(environ)
def list_bags(self):
logging.debug("listing bag: %s" % bag.name)
raise NotImplementedError("list of bags not available") # TODO?
def list_tiddlers(self):
logging.debug("listing bag: %s" % bag.name)
raise NotImplementedError("list of bags not available") # TODO?
def bag_get(self, bag):
logging.debug("retrieving bag: %s" % bag.name)
bag.desc = None # TODO
#bag.policy = None # TODO
if not (hasattr(bag, "skinny") and bag.skinny):
for photo in _get_photos(bag.name):
tiddler = Tiddler(photo["id"])
tiddler = _populate_tiddler(tiddler)
bag.add_tiddler(tiddler)
return bag
def tiddler_get(self, tiddler):
logging.debug("retrieving tiddler %s from %s" % (tiddler.title, tiddler.bag))
tiddler = _populate_tiddler(tiddler)
img = "http://farm%s.static.flickr.com/%s/%s_%s.jpg" % (
tiddler.fields["flickr.farm"], tiddler.fields["flickr.server"],
tiddler.title, tiddler.fields["flickr.secret"])
link = "http://www.flickr.com/photos/%s/%s/" % (tiddler.bag, tiddler.title)
label = tiddler.fields["flickr.caption"]
tiddler.text += "\n\n[img[%s|%s][%s]]" % (label, img, link) # XXX: for demo purposes only
return tiddler
def _get_photos(user_id):
uri_template = "http://query.yahooapis.com/v1/public/yql?q=SELECT%20id%20FROM%20flickr.photos.search%20WHERE%20user_id%3D%22%s%22%20AND%20ispublic%3D%221%22&format=json&env=http%3A%2F%2Fdatatables.org%2Falltables.env"
uri = uri_template.replace("%s", urllib2.quote(user_id)) # N.B.: regular string substitution does not work well with URL-encoded strings
data = urllib2.urlopen(uri)
data = simplejson.loads(data.read())
return data["query"]["results"]["photo"]
def _get_photo(id):
uri_template = "http://query.yahooapis.com/v1/public/yql?q=SELECT%20title%2C%20dateuploaded%2C%20description%2C%20tags%2C%20license%2C%20farm%2C%20server%2C%20secret%20FROM%20flickr.photos.info%20WHERE%20photo_id%3D%22%s%22&format=json&env=http%3A%2F%2Fdatatables.org%2Falltables.env"
uri = uri_template.replace("%s", urllib2.quote(id)) # N.B.: regular string substitution does not work well with URL-encoded strings
data = urllib2.urlopen(uri)
data = simplejson.loads(data.read())
photo = data["query"]["results"]["photo"]
# TODO: convert dateuploaded to date object, resolve license, store source URI
tags = []
try:
for tag in photo["tags"]["tag"]:
tags.append(tag["content"])
except TypeError: # XXX: not quite sure why this fails sometimes
pass
photo["tags"] = tags
return photo
def _populate_tiddler(tiddler):
photo = _get_photo(tiddler.title)
tiddler.created = photo["dateuploaded"] # TODO: convert to tiddly timestamp
tiddler.text = photo["description"] or ""
tiddler.tags = photo["tags"]
tiddler.fields["flickr.caption"] = photo["title"]
tiddler.fields["flickr.farm"] = photo["farm"]
tiddler.fields["flickr.server"] = photo["server"]
tiddler.fields["flickr.secret"] = photo["secret"]
tiddler.fields["flickr.license"] = photo["license"]
return tiddler