def app_delete_resource(blockchain_id,
app_domain,
res_name,
app_config=None,
data_privkey=None,
proxy=None,
wallet_keys=None,
config_path=CONFIG_PATH):
"""
Remove data from a named application resource in mutable storage.
data_privkey should be the publisher's private key
name should be a blockchain ID that points to the public key
if app_config is not None, then the driver hints will be honored.
Return {'status': True, 'version': ...} on success
Return {'error': ...} on error
"""
if data_privkey is None:
assert wallet_keys, "No data private key or wallet given"
data_privkey = wallet_keys.get('data_privkey', None)
assert data_privkey, "Wallet does not contain a data private key"
data_pubkey = get_pubkey_hex(data_privkey)
proxy = get_default_proxy() if proxy is None else proxy
res_data_id = storage.make_fq_data_id(app_domain, res_name)
driver_hints = None
if app_config is not None:
# use driver hints
driver_hints = app_config['driver_hints']
tombstone = storage.make_data_tombstone(res_data_id)
signed_tombstone = storage.sign_data_tombstone(res_data_id, data_privkey)
res = data.delete_mutable(res_data_id, [signed_tombstone],
proxy=proxy,
storage_drivers=driver_hints,
blockchain_id=blockchain_id,
is_fq_data_id=True,
config_path=config_path)
if 'error' in res:
log.error("Failed to delete resource {}: {}".format(
res_data_id, res['error']))
return {'error': 'Failed to delete resource'}
return {'status': True}
def app_delete_resource( blockchain_id, app_domain, res_name, app_config=None, data_privkey=None, proxy=None, wallet_keys=None, config_path=CONFIG_PATH ):
"""
Remove data from a named application resource in mutable storage.
data_privkey should be the publisher's private key
name should be a blockchain ID that points to the public key
if app_config is not None, then the driver hints will be honored.
Return {'status': True, 'version': ...} on success
Return {'error': ...} on error
"""
if data_privkey is None:
assert wallet_keys, "No data private key or wallet given"
data_privkey = wallet_keys.get('data_privkey', None)
assert data_privkey, "Wallet does not contain a data private key"
data_pubkey = get_pubkey_hex(data_privkey)
proxy = get_default_proxy() if proxy is None else proxy
res_data_id = storage.make_fq_data_id(app_domain, res_name)
driver_hints = None
if app_config is not None:
# use driver hints
driver_hints = app_config['driver_hints']
tombstone = storage.make_data_tombstone(res_data_id)
signed_tombstone = storage.sign_data_tombstone(res_data_id, data_privkey)
res = data.delete_mutable(res_data_id, [signed_tombstone], proxy=proxy, storage_drivers=driver_hints, blockchain_id=blockchain_id, is_fq_data_id=True, config_path=config_path)
if 'error' in res:
log.error("Failed to delete resource {}: {}".format(res_data_id, res['error']))
return {'error': 'Failed to delete resource'}
return {'status': True}
def app_unpublish( blockchain_id, app_domain, force=False, data_privkey=None, app_config=None, wallet_keys=None, proxy=None, config_path=CONFIG_PATH ):
"""
Unpublish an application
Deletes its config and index.
Does NOT delete its resources.
Does NOT delete user data.
if force is True, then we will try to delete the app state even if we can't load the app config
WARNING: force can be dangerous, since it can delete data via drivers that were never meant for this app. Use with caution!
Return {'status': True, 'app_config': ..., 'retry': ...} on success. If retry is True, then retry this method with the given app_config
Return {'error': ...} on error
"""
proxy = get_default_proxy() if proxy is None else proxy
# find out where to delete from
data_pubkey = None
if data_privkey is not None:
data_pubkey = get_pubkey_hex(str(data_privkey))
if app_config is None:
app_config = app_get_config(blockchain_id, app_domain, data_pubkey=data_pubkey, proxy=proxy, config_path=CONFIG_PATH )
if 'error' in app_config:
if not force:
log.error("Failed to load app config for {}'s {}".format(blockchain_id, app_domain))
return {'error': 'Failed to load app config'}
else:
# keep going
app_config = None
log.warning("Failed to load app config, but proceeding at caller request")
config_data_id = storage.make_fq_data_id(app_domain, '.blockstack')
index_data_id = storage.make_fq_data_id(app_domain, 'index.html')
storage_drivers = None
if app_config is not None:
# only use the ones we have to
urls = user_db.urls_from_uris(app_config['index_uris'])
driver_names = []
for url in urls:
drivers = storage.get_drivers_for_url(url)
driver_names += [d.__name__ for d in drivers]
storage_drivers = list(set(driver_names))
ret = {}
# delete the index
index_tombstone = storage.make_data_tombstone(index_data_id)
signed_index_tombstone = storage.sign_data_tombstone(index_data_id, data_privkey)
res = data.delete_mutable(index_data_id, [signed_index_tombstone], proxy=proxy, storage_drivers=storage_drivers, blockchain_id=blockchain_id, is_fq_data_id=True, config_path=config_path)
if 'error' in res:
log.warning("Failed to delete index file {}".format(index_data_id))
ret['app_config'] = app_config
ret['retry'] = True
# delete the config
config_tombstone = storage.make_data_tombstone(config_data_id)
signed_config_tombstone = storage.sign_data_tombstone(config_data_id, data_privkey)
res = data.delete_mutable(config_data_id, [signed_config_tombstone], proxy=proxy, blockchain_id=blockchain_id, is_fq_data_id=True, config_path=config_path)
if 'error' in res:
log.warning("Failed to delete config file {}".format(config_data_id))
if not ret.has_key('app_config'):
ret['app_config'] = app_config
ret['retry'] = True
ret['status'] = True
return ret
def app_unpublish(blockchain_id,
app_domain,
force=False,
data_privkey=None,
app_config=None,
wallet_keys=None,
proxy=None,
config_path=CONFIG_PATH):
"""
Unpublish an application
Deletes its config and index.
Does NOT delete its resources.
Does NOT delete user data.
if force is True, then we will try to delete the app state even if we can't load the app config
WARNING: force can be dangerous, since it can delete data via drivers that were never meant for this app. Use with caution!
Return {'status': True, 'app_config': ..., 'retry': ...} on success. If retry is True, then retry this method with the given app_config
Return {'error': ...} on error
"""
proxy = get_default_proxy() if proxy is None else proxy
# find out where to delete from
data_pubkey = None
if data_privkey is not None:
data_pubkey = get_pubkey_hex(str(data_privkey))
if app_config is None:
app_config = app_get_config(blockchain_id,
app_domain,
data_pubkey=data_pubkey,
proxy=proxy,
config_path=CONFIG_PATH)
if 'error' in app_config:
if not force:
log.error("Failed to load app config for {}'s {}".format(
blockchain_id, app_domain))
return {'error': 'Failed to load app config'}
else:
# keep going
app_config = None
log.warning(
"Failed to load app config, but proceeding at caller request"
)
config_data_id = storage.make_fq_data_id(app_domain, '.blockstack')
index_data_id = storage.make_fq_data_id(app_domain, 'index.html')
storage_drivers = None
if app_config is not None:
# only use the ones we have to
urls = user_db.urls_from_uris(app_config['index_uris'])
driver_names = []
for url in urls:
drivers = storage.get_drivers_for_url(url)
driver_names += [d.__name__ for d in drivers]
storage_drivers = list(set(driver_names))
ret = {}
# delete the index
index_tombstone = storage.make_data_tombstone(index_data_id)
signed_index_tombstone = storage.sign_data_tombstone(
index_data_id, data_privkey)
res = data.delete_mutable(index_data_id, [signed_index_tombstone],
proxy=proxy,
storage_drivers=storage_drivers,
blockchain_id=blockchain_id,
is_fq_data_id=True,
config_path=config_path)
if 'error' in res:
log.warning("Failed to delete index file {}".format(index_data_id))
ret['app_config'] = app_config
ret['retry'] = True
# delete the config
config_tombstone = storage.make_data_tombstone(config_data_id)
signed_config_tombstone = storage.sign_data_tombstone(
config_data_id, data_privkey)
res = data.delete_mutable(config_data_id, [signed_config_tombstone],
proxy=proxy,
blockchain_id=blockchain_id,
is_fq_data_id=True,
config_path=config_path)
if 'error' in res:
log.warning("Failed to delete config file {}".format(config_data_id))
if not ret.has_key('app_config'):
ret['app_config'] = app_config
ret['retry'] = True
ret['status'] = True
return ret