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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright 2008 Ryan Cox ( ryan.a.cox@gmail.com ) All Rights Reserved.
#
# 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.
#
'''A wrapper library for Tumblr's public web API: http://www.tumblr.com/api'''
__author__ = 'ryan.a.cox@gmail.com'
__version__ = '0.1'
from urllib2 import Request, urlopen, URLError, HTTPError
from urllib import urlencode, quote
import base64
import re
try:
import simplejson
except ImportError:
from django.utils import simplejson
GENERATOR = 'python-tumblr'
PAGESIZE = 50
class TumblrError(Exception):
''' General Tumblr error '''
def __init__(self, msg):
self.msg = msg
def __str__(self):
return self.msg
class TumblrAuthError(TumblrError):
''' Wraps a 403 result '''
pass
class TumblrRequestError(TumblrError):
''' Wraps a 400 result '''
pass
class TumblrIterator:
def __init__(self, name, start, max, type):
self.name = name
self.start = start
self.max = max
self.type = type
self.results = None
self.index = 0
def __iter__(self):
return self
def next(self):
if not self.results or (self.index == len(self.results['posts'])):
self.start += self.index
self.index = 0
url = "http://%s.tumblr.com/api/read/json?start=%s&num=%s" % (self.name,self.start, PAGESIZE)
if self.type:
url += "&type=" + self.type
response = urlopen(url)
page = response.read()
m = re.match("^.*?({.*}).*$", page,re.DOTALL | re.MULTILINE | re.UNICODE)
self.results = simplejson.loads(m.group(1))
if (self.index >= self.max) or len(self.results['posts']) == 0:
raise StopIteration
self.index += 1
return self.results['posts'][self.index-1]
class Api:
def __init__(self, name, email=None, password=None ):
self.name = name
self.is_authenticated = False
self.email = email
self.password = password
def auth_check(self):
if self.is_authenticated:
return
url = 'http://www.tumblr.com/api/write'
values = {
'action': 'authenticate',
'generator' : GENERATOR,
'email': self.email,
'password' : self.password }
data = urlencode(values)
req = Request(url, data)
try:
response = urlopen(req)
page = response.read()
self.url = page
self.is_authenticated = True
return
except HTTPError, e:
if 403 == e.code:
raise TumblrAuthError(str(e))
if 400 == e.code:
raise TumblrRequestError(str(e))
except Exception, e:
raise TumblrError(str(e))
def write_regular(self, title=None, body=None, **args):
if title:
args['title'] = title
if body:
args['body'] = body
args = self._fixnames(args)
if not 'title' in args and not 'body' in args:
raise TumblrError("Must supply either body or title argument")
self.auth_check()
args['type'] = 'regular'
return self._write(args)
def write_photo(self, source=None, **args):
if source:
args['source'] = source
args = self._fixnames(args)
if 'source' in args and 'data' in args:
raise TumblrError("Must NOT supply both source and data arguments")
if not 'source' in args and not 'data' in args:
raise TumblrError("Must supply source or data argument")
self.auth_check()
args['type'] = 'photo'
return self._write(args)
def write_quote(self, quote=None, **args):
if quote:
args['quote'] = quote
args = self._fixnames(args)
if not 'quote' in args:
raise TumblrError("Must supply quote arguments")
self.auth_check()
args['type'] = 'quote'
return self._write(args)
def write_link(self, url=None, **args):
if url:
args['url'] = url
args = self._fixnames(args)
if not 'url' in args:
raise TumblrError("Must supply url argument")
self.auth_check()
args['type'] = 'link'
return self._write(args)
def write_conversation(self, conversation=None, **args):
if conversation:
args['conversation'] = conversation
args = self._fixnames(args)
if not 'conversation' in args:
raise TumblrError("Must supply conversation argument")
self.auth_check()
args['type'] = 'conversation'
return self._write(args)
def write_video(self, embed=None, **args):
if embed:
args['embed'] = embed
args = self._fixnames(args)
if 'embed' in args and 'data' in args:
raise TumblrError("Must NOT supply both embed and data arguments")
if not 'embed' in args and not 'data' in args:
raise TumblrError("Must supply embed or data argument")
self.auth_check()
args['type'] = 'video'
return self._write(args)
def _fixnames(self, args):
for key in args:
if '_' in key:
value = args[key]
del args[key]
args[key.replace('_', '-')] = value
return args
def _write(self, params, headers=None):
self.auth_check()
url = 'http://www.tumblr.com/api/write'
params['email'] = self.email
params['password'] = self.password
params['generator'] = GENERATOR
data = urlencode(params)
if headers:
req = Request(url, data, headers)
else:
req = Request(url, data)
newid = None
try:
urlopen(req)
raise TumblrError("Error writing post")
except HTTPError, e:
if 201 == e.code:
newid = e.read()
return self.read(id=newid)
raise TumblrError(e.read())
def read(self, id=None, start=0,max=2**31-1,type=None):
if id:
url = "http://%s.tumblr.com/api/read/json?id=%s" % (self.name,id)
response = urlopen(url)
page = response.read()
m = re.match("^.*?({.*}).*$", page,re.DOTALL | re.MULTILINE | re.UNICODE)
results = simplejson.loads(m.group(1))
if len(results['posts']) == 0:
return None
return results['posts'][0]
else:
return TumblrIterator(self.name,start,max,type)
if __name__ == "__main__":
pass
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