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get subdomain history in reverse chronological order; add method to test if a zone file hash was created by a subdomain

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This commit is contained in:
Jude Nelson
2018-09-19 18:32:50 -04:00
parent 6a6e9cc1f8
commit bc89efb797
1 changed files with 55 additions and 6 deletions
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61
blockstack/lib/subdomains.py
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@@ -1328,6 +1328,29 @@ class SubdomainDB(object):
return subrec
def is_subdomain_zonefile_hash(self, fqn, zonefile_hash, cur=None):
"""
Does this zone file hash belong to this subdomain?
"""
sql = 'SELECT COUNT(zonefile_hash) FROM {} WHERE fully_qualified_subdomain = ? and zonefile_hash = ?;'.format(self.subdomain_table)
args = (fqn,zonefile_hash)
cursor = None
if cur is None:
cursor = self.conn.cursor()
else:
cursor = cur
rows = db_query_execute(cursor, sql, args)
count = None
for row in rows:
count = row['COUNT(zonefile_hash)']
break
return (count > 0)
def get_subdomain_history(self, fqn, start_sequence=None, end_sequence=None, start_zonefile_index=None, end_zonefile_index=None, include_unaccepted=False, offset=None, count=None, cur=None):
"""
Get the subdomain's history over a block range.
@@ -1357,14 +1380,14 @@ class SubdomainDB(object):
if end_sequence is not None:
args += (end_sequence,)
if offset is not None:
sql += ' OFFSET ?'
args += (offset,)
if count is not None:
sql += ' LIMIT ?'
args += (count,)
if offset is not None:
sql += ' OFFSET ?'
args += (offset,)
sql += ';'
if cur is None:
@@ -1956,7 +1979,26 @@ def get_DID_subdomain(did, db_path=None, zonefiles_dir=None, atlasdb_path=None,
return subrec
def get_subdomain_history(fqn, db_path=None, zonefiles_dir=None, json=False):
def is_subdomain_zonefile_hash(fqn, zonefile_hash, db_path=None, zonefiles_dir=None):
"""
Static method for getting all historic zone file hashes for a subdomain
"""
opts = get_blockstack_opts()
if not is_subdomains_enabled(opts):
return []
if db_path is None:
db_path = opts['subdomaindb_path']
if zonefiles_dir is None:
zonefiles_dir = opts['zonefiles']
db = SubdomainDB(db_path, zonefiles_dir)
zonefile_hashes = db.is_subdomain_zonefile_hash(fqn, zonefile_hash)
return zonefile_hashes
def get_subdomain_history(fqn, offset=None, count=None, reverse=False, db_path=None, zonefiles_dir=None, json=False):
"""
Static method for getting all historic operations on a subdomain
"""
@@ -1971,7 +2013,7 @@ def get_subdomain_history(fqn, db_path=None, zonefiles_dir=None, json=False):
zonefiles_dir = opts['zonefiles']
db = SubdomainDB(db_path, zonefiles_dir)
recs = db.get_subdomain_history(fqn)
recs = db.get_subdomain_history(fqn, offset=offset, count=count)
if json:
recs = [rec.to_json() for rec in recs]
@@ -1982,6 +2024,13 @@ def get_subdomain_history(fqn, db_path=None, zonefiles_dir=None, json=False):
ret[rec['block_number']].append(rec)
if reverse:
for block_height in ret:
ret[block_height].sort(lambda r1, r2: -1 if r1['parent_zonefile_index'] > r2['parent_zonefile_index'] or
(r1['parent_zonefile_index'] == r2['parent_zonefile_index'] and r1['zonefile_offset'] > r2['zonefile_offset']) else
1 if r1['parent_zonefile_index'] < r2['parent_zonefile_index'] or
(r1['parent_zonefile_index'] == r2['parent_zonefile_index'] and r1['zonefile_offset'] < r2['zonefile_offset']) else
0)
return ret
else: