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twitter.py
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twitter.py
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import html
import os
import re
import requests
import sys
import tempfile
import urllib.parse
from flask import Blueprint, current_app, redirect, url_for, request, flash
from flask import session
from requests_oauthlib import OAuth1Session, OAuth1
from silopub import util
from silopub.ext import db
from silopub.models import Account, Twitter
import brevity
REQUEST_TOKEN_URL = 'https://api.twitter.com/oauth/request_token'
AUTHENTICATE_URL = 'https://api.twitter.com/oauth/authenticate'
AUTHORIZE_URL = 'https://api.twitter.com/oauth/authorize'
ACCESS_TOKEN_URL = 'https://api.twitter.com/oauth/access_token'
VERIFY_CREDENTIALS_URL = 'https://api.twitter.com/1.1/account/verify_credentials.json'
CREATE_STATUS_URL = 'https://api.twitter.com/1.1/statuses/update.json'
# CREATE_WITH_MEDIA_URL = 'https://api.twitter.com/1.1/statuses/update_with_media.json'
UPLOAD_MEDIA_URL = 'https://upload.twitter.com/1.1/media/upload.json'
RETWEET_STATUS_URL = 'https://api.twitter.com/1.1/statuses/retweet/{}.json'
FAVE_STATUS_URL = 'https://api.twitter.com/1.1/favorites/create.json'
TWEET_RE = re.compile(r'https?://(?:www\.|mobile\.)?twitter\.com/(\w+)/status(?:es)?/(\w+)')
SERVICE_NAME = 'twitter'
twitter = Blueprint('twitter', __name__)
@twitter.route('/twitter.com/<username>')
def proxy_homepage(username):
account = Account.query.filter_by(
service=SERVICE_NAME, username=username).first()
params = {
'service_name': 'Twitter',
'service_url': 'https://twitter.com/',
'service_photo': 'https://abs.twimg.com/favicons/favicon.ico',
}
if account:
params.update({
'user_name': '@' + account.username,
'user_url': account.sites[0].url,
'user_photo': (account.user_info or {}).get(
'profile_image_url_https'),
})
else:
params.update({
'user_name': '@' + username,
'user_url': 'https://twitter.com/' + username,
})
return util.render_proxy_homepage(**params)
@twitter.route('/twitter/authorize', methods=['POST'])
def authorize():
try:
callback_uri = url_for('.callback', _external=True)
return redirect(get_authorize_url(callback_uri))
except:
current_app.logger.exception('Starting Twitter authorization')
flash(html.escape(str(sys.exc_info()[0])), 'danger')
return redirect(url_for('views.index'))
@twitter.route('/twitter/callback')
def callback():
try:
callback_uri = url_for('.callback', _external=True)
result = process_callback(callback_uri)
if 'error' in result:
flash(result['error'], category='danger')
return redirect(url_for('views.index'))
account = result['account']
return redirect(url_for('views.setup_account', service=SERVICE_NAME,
user_id=account.user_id))
except:
current_app.logger.exception('During Twitter authorization callback')
flash(html.escape(str(sys.exc_info()[0])), 'danger')
return redirect(url_for('views.index'))
def get_authorize_url(callback_uri, me=None, **kwargs):
session.pop('oauth_token', None)
session.pop('oauth_token_secret', None)
oauth_session = OAuth1Session(
client_key=current_app.config['TWITTER_CLIENT_KEY'],
client_secret=current_app.config['TWITTER_CLIENT_SECRET'],
callback_uri=callback_uri)
r = oauth_session.fetch_request_token(REQUEST_TOKEN_URL)
session['oauth_token'] = r.get('oauth_token')
session['oauth_token_secret'] = r.get('oauth_token_secret')
params = {'force_login': 'true'}
if me:
params['screen_name'] = me.split('/')[-1]
return oauth_session.authorization_url(
AUTHORIZE_URL + '?' + urllib.parse.urlencode(params))
def process_callback(callback_uri):
verifier = request.args.get('oauth_verifier')
if not verifier:
# user declined
return {'error': 'Twitter authorization declined'}
request_token = session.get('oauth_token')
request_token_secret = session.get('oauth_token_secret')
oauth_session = OAuth1Session(
client_key=current_app.config['TWITTER_CLIENT_KEY'],
client_secret=current_app.config['TWITTER_CLIENT_SECRET'],
resource_owner_key=request_token,
resource_owner_secret=request_token_secret,
callback_uri=callback_uri)
oauth_session.parse_authorization_response(request.url)
# get the access token and secret
r = oauth_session.fetch_access_token(ACCESS_TOKEN_URL)
access_token = r.get('oauth_token')
access_token_secret = r.get('oauth_token_secret')
current_app.logger.debug('request token: %s, secret: %s',
request_token, request_token_secret)
current_app.logger.debug('access token: %s, secret: %s',
access_token, access_token_secret)
auth = OAuth1(
client_key=current_app.config['TWITTER_CLIENT_KEY'],
client_secret=current_app.config['TWITTER_CLIENT_SECRET'],
resource_owner_key=access_token,
resource_owner_secret=access_token_secret)
user_info = requests.get(VERIFY_CREDENTIALS_URL, auth=auth).json()
if 'errors' in user_info:
return {'error': 'Error fetching credentials %r'
% user_info.get('errors')}
user_id = user_info.get('id_str')
username = user_info.get('screen_name')
current_app.logger.debug('verified credentials. user_id=%s, username=%s',
user_id, username)
current_app.logger.debug('user_info: %r', user_info)
account = Account.query.filter_by(
service='twitter', user_id=user_id).first()
if not account:
account = Account(service='twitter', user_id=user_id)
db.session.add(account)
account.username = username
account.user_info = user_info
account.token = access_token
account.token_secret = access_token_secret
account.update_sites([Twitter(
url='https://twitter.com/{}'.format(account.username),
domain='twitter.com/{}'.format(account.username),
site_id=account.user_id)])
db.session.commit()
util.set_authed(account.sites)
return {'account': account}
def publish(site):
auth = OAuth1(
client_key=current_app.config['TWITTER_CLIENT_KEY'],
client_secret=current_app.config['TWITTER_CLIENT_SECRET'],
resource_owner_key=site.account.token,
resource_owner_secret=site.account.token_secret)
def interpret_response(result):
if result.status_code // 100 != 2:
return util.wrap_silo_error_response(result)
result_json = result.json()
twitter_url = 'https://twitter.com/{}/status/{}'.format(
result_json.get('user', {}).get('screen_name'),
result_json.get('id_str'))
return util.make_publish_success_response(twitter_url, result_json)
def get_tweet_id(original):
tweet_url = util.posse_post_discovery(original, TWEET_RE)
if tweet_url:
m = TWEET_RE.match(tweet_url)
if m:
return m.group(1), m.group(2)
return None, None
def upload_photo(photo):
current_app.logger.debug('uploading photo, name=%s, type=%s',
photo.filename, photo.content_type)
result = requests.post(UPLOAD_MEDIA_URL, files={
'media': (photo.filename, photo.stream, photo.content_type),
}, auth=auth)
if result.status_code // 100 != 2:
return None, result
result_data = result.json()
current_app.logger.debug('upload result: %s', result_data)
return result_data.get('media_id_string'), None
def upload_video(video, default_content_type='video/mp4'):
# chunked video upload
chunk_files = []
def cleanup():
for f in chunk_files:
os.unlink(f)
chunk_size = 1 << 20
total_size = 0
while True:
chunk = video.read(chunk_size)
if not chunk:
break
total_size += len(chunk)
tempfd, tempfn = tempfile.mkstemp('-%03d-%s' % (
len(chunk_files), video.filename))
with open(tempfn, 'wb') as f:
f.write(chunk)
chunk_files.append(tempfn)
current_app.logger.debug('init upload. type=%s, length=%s',
video.content_type, video.content_length)
result = requests.post(UPLOAD_MEDIA_URL, data={
'command': 'INIT',
'media_type': video.content_type or default_content_type,
'total_bytes': total_size,
}, auth=auth)
current_app.logger.debug('init result: %s %s', result, result.text)
if result.status_code // 100 != 2:
cleanup()
return None, result
result_data = result.json()
media_id = result_data.get('media_id_string')
segment_idx = 0
for chunk_file in chunk_files:
current_app.logger.debug('appending file: %s', chunk_file)
result = requests.post(UPLOAD_MEDIA_URL, data={
'command': 'APPEND',
'media_id': media_id,
'segment_index': segment_idx,
}, files={
'media': open(chunk_file, 'rb'),
}, auth=auth)
current_app.logger.debug(
'append result: %s %s', result, result.text)
if result.status_code // 100 != 2:
cleanup()
return None, result
segment_idx += 1
current_app.logger.debug('finalize uploading video: %s', media_id)
result = requests.post(UPLOAD_MEDIA_URL, data={
'command': 'FINALIZE',
'media_id': media_id,
}, auth=auth)
current_app.logger.debug('finalize result: %s %s', result, result.text)
if result.status_code // 100 != 2:
cleanup()
return None, result
cleanup()
return media_id, None
data = {}
format = brevity.FORMAT_NOTE
content = request.form.get('content[value]') or request.form.get('content')
if 'name' in request.form:
format = brevity.FORMAT_ARTICLE
content = request.form.get('name')
repost_ofs = util.get_possible_array_value(request.form, 'repost-of')
for repost_of in repost_ofs:
_, tweet_id = get_tweet_id(repost_of)
if tweet_id:
return interpret_response(
requests.post(RETWEET_STATUS_URL.format(tweet_id), auth=auth))
else:
if repost_ofs:
content = 'Reposted: {}'.format(repost_ofs[0])
like_ofs = util.get_possible_array_value(request.form, 'like-of')
for like_of in like_ofs:
_, tweet_id = get_tweet_id(like_of)
if tweet_id:
return interpret_response(
requests.post(FAVE_STATUS_URL, data={'id': tweet_id}, auth=auth))
else:
if like_ofs:
content = 'Liked: {}'.format(like_ofs[0])
media_ids = []
for photo in util.get_files_or_urls_as_file_storage(request.files, request.form, 'photo'):
media_id, err = upload_photo(photo)
if err:
return util.wrap_silo_error_response(err)
media_ids.append(media_id)
for video in util.get_files_or_urls_as_file_storage(request.files, request.form, 'video'):
media_id, err = upload_video(video)
if err:
return util.wrap_silo_error_response(err)
media_ids.append(media_id)
in_reply_tos = util.get_possible_array_value(request.form, 'in-reply-to')
for in_reply_to in in_reply_tos:
twitterer, tweet_id = get_tweet_id(in_reply_to)
if tweet_id:
data['in_reply_to_status_id'] = tweet_id
break
else:
if in_reply_tos:
content = 'Re: {}, {}'.format(in_reply_tos[0], content)
location = request.form.get('location')
current_app.logger.debug('received location param: %s', location)
data['lat'], data['long'] = util.parse_geo_uri(location)
permalink_url = request.form.get('url')
if media_ids:
data['media_ids'] = ','.join(media_ids)
if content:
data['status'] = brevity.shorten(content, permalink=permalink_url,
format=format, target_length=280)
# for in-reply-to tweets, leading @mentions will be looked up from the original Tweet, and added to the new Tweet from there.
# https://developer.twitter.com/en/docs/tweets/post-and-engage/api-reference/post-statuses-update
data['auto_populate_reply_metadata'] = 'true'
data = util.trim_nulls(data)
current_app.logger.debug('publishing with params %s', data)
return interpret_response(
requests.post(CREATE_STATUS_URL, data=data, auth=auth))