def bewit(ctx, url, ttl):
'''
Create a bewit for the given URL.
'''
url = url.rstrip('/')
if url == ctx['meta_post']['server']['urls']['posts_feed'] or url == ctx['meta_post']['entity']:
click.echo("Use bewits only for specific posts!")
return False
if '?' in url:
click.echo("Can't make bewits for queries!")
return False
click.echo("Bewit URL: ")
click.echo(url + '?bewit=' + hawk_get_bewit(url, {'credentials': ctx['credentials'], 'ttl_sec': ttl * 60}))
def before_insert_posts(documents):
meta_post = current_app.config.get('META_POST')
posts_endpoint = meta_post['server']['urls']['posts_feed']
app_type = str(url_for('server_info.types_item', name='app', _external=True))
credentials_type = str(url_for('server_info.types_item', name='credentials', _external=True))
for document in documents:
# Create version information, but save app version data if present
current_time = time.time()
time_seconds = int(current_time)
time_millisec = int(current_time * 1000)
time_microsec = int(current_time * 1000000)
app_version = get_app_version(document)
digest = create_version_digest(document)
document['version'] = create_version_document(digest, time_millisec, app_version)
# Create an ID for the document
if document['type'] == credentials_type:
# Since credentials posts are created automatically by the server,
# we need to specify their IDs in microseconds
document['_id'] = str(NewBase60(time_microsec))
else:
document['_id'] = str(NewBase60(time_seconds))
# Additional processing for certain post types
if document['type'] == app_type:
# For app posts, we must create an additional credentials post
# and make sure they link to each other
hawk_key = str(random_string(64))
hawk_algorithm = 'sha256'
credentials_post = {
'entity': str(meta_post['entity']),
'type': credentials_type,
'content': {
'hawk_key': hawk_key,
'hawk_algorithm': hawk_algorithm
},
'links': [
{
'post': str(document['_id']),
'url': str(posts_endpoint + "/" + document['_id']),
'type': app_type
}
]
}
response, _, _, status = post_internal('posts', credentials_post)
if not 'links' in document:
document['links'] = []
cred_id = str(response['_id'])
cred_url = str(posts_endpoint + "/" + cred_id)
document['links'].append({
'post': cred_id,
'url': cred_url,
'type': credentials_type
})
# Create a signal to change the POST response envelope
g.app_POST = True
credentials = {
'id': cred_id,
'key': hawk_key,
'algorithm': hawk_algorithm
}
g.cred_bewit_url = cred_url + '?bewit=' + hawk_get_bewit(cred_url, {'credentials': credentials, 'ttl_sec': BEWIT_TTL})
