MarseyWorld/files/helpers/get.py

318 lines
8.0 KiB
Python

from typing import Callable, Iterable, List, Optional, Union
from files.classes import *
from flask import g
def sanitize_username(username:str) -> str:
if not username: return username
return username.replace('\\', '').replace('_', '\_').replace('%', '').replace('(', '').replace(')', '').strip()
def get_id(username:str, graceful=False) -> Optional[int]:
username = sanitize_username(username)
if not username:
if graceful: return None
abort(404)
user = g.db.query(
User.id
).filter(
or_(
User.username.ilike(username),
User.original_username.ilike(username)
)
).one_or_none()
if not user:
if graceful: return None
abort(404)
return user[0]
def get_user(username:str, v:Optional[User]=None, graceful=False, rendered=False, include_blocks=False, include_shadowbanned=True) -> Optional[User]:
if not username:
if graceful: return None
abort(404)
username = sanitize_username(username)
if not username:
if graceful: return None
abort(404)
user = g.db.query(
User
).filter(
or_(
User.username.ilike(username),
User.original_username.ilike(username)
)
)
user = user.one_or_none()
if not user or (user.shadowbanned and not (include_shadowbanned or (v and v.can_see_shadowbanned))):
if graceful: return None
abort(404)
if rendered and v and include_blocks:
user = add_block_props(user, v)
return user
def get_users(usernames:Iterable[str], graceful=False) -> List[User]:
if not usernames: return []
usernames = [sanitize_username(n) for n in usernames]
if not any(usernames):
if graceful and len(usernames) == 0: return []
abort(404)
users = g.db.query(User).filter(
or_(
User.username.ilike(any_(usernames)),
User.original_username.ilike(any_(usernames))
)
).all()
if len(users) != len(usernames) and not graceful:
abort(404)
return users
def get_account(id:Union[str, int], v:Optional[User]=None, graceful=False, include_blocks=False, include_shadowbanned=True) -> Optional[User]:
try:
id = int(id)
except:
if graceful: return None
abort(404)
user = g.db.get(User, id)
if not user or (user.shadowbanned and not (include_shadowbanned or (v and v.can_see_shadowbanned))):
if not graceful: abort(404)
else: return None
if include_blocks:
user = add_block_props(user, v)
return user
def get_post(i:Union[str, int], v:Optional[User]=None, graceful=False) -> Optional[Submission]:
try: i = int(i)
except:
if graceful: return None
else: abort(404)
if not i:
if graceful: return None
else: abort(404)
if v:
vt = g.db.query(Vote).filter_by(user_id=v.id, submission_id=i).subquery()
blocking = v.blocking.subquery()
post = g.db.query(
Submission,
vt.c.vote_type,
blocking.c.target_id,
)
post=post.filter(Submission.id == i
).join(
vt,
vt.c.submission_id == Submission.id,
isouter=True
).join(
blocking,
blocking.c.target_id == Submission.author_id,
isouter=True
)
post=post.one_or_none()
if not post:
if graceful: return None
else: abort(404)
x = post[0]
x.voted = post[1] or 0
x.is_blocking = post[2] or 0
else:
post = g.db.get(Submission, i)
if not post:
if graceful: return None
else: abort(404)
x=post
return x
def get_posts(pids:Iterable[int], v:Optional[User]=None) -> List[Submission]:
if not pids: return []
if v:
vt = g.db.query(Vote.vote_type, Vote.submission_id).filter(
Vote.submission_id.in_(pids),
Vote.user_id==v.id
).subquery()
blocking = v.blocking.subquery()
blocked = v.blocked.subquery()
query = g.db.query(
Submission,
vt.c.vote_type,
blocking.c.target_id,
blocked.c.target_id,
).filter(
Submission.id.in_(pids)
).join(
vt, vt.c.submission_id==Submission.id, isouter=True
).join(
blocking,
blocking.c.target_id == Submission.author_id,
isouter=True
).join(
blocked,
blocked.c.user_id == Submission.author_id,
isouter=True
).all()
output = [p[0] for p in query]
for i in range(len(output)):
output[i].voted = query[i][1] or 0
output[i].is_blocking = query[i][2] or 0
output[i].is_blocked = query[i][3] or 0
else:
output = g.db.query(Submission,).filter(Submission.id.in_(pids)).all()
return sorted(output, key=lambda x: pids.index(x.id))
def get_comment(i:Union[str, int], v:Optional[User]=None, graceful=False) -> Optional[Comment]:
try: i = int(i)
except:
if graceful: return None
abort(404)
if not i:
if graceful: return None
else: abort(404)
comment=g.db.get(Comment, i)
if not comment:
if graceful: return None
else: abort(404)
return add_vote_and_block_props(comment, v, CommentVote)
def add_block_props(target:Union[Submission, Comment, User], v:Optional[User]):
if not v: return target
id = None
if any(isinstance(target, cls) for cls in [Submission, Comment]):
id = target.author_id
elif isinstance(target, User):
id = target.id
else:
raise TypeError("add_block_props only supports non-None submissions, comments, and users")
if hasattr(target, 'is_blocking') and hasattr(target, 'is_blocked'):
return target
if v.id == id or id == AUTOJANNY_ID: # users can't block or be blocked by themselves or AutoJanny
target.is_blocking = False
target.is_blocked = False
return target
block = g.db.query(UserBlock).filter(
or_(
and_(
UserBlock.user_id == v.id,
UserBlock.target_id == id
),
and_(
UserBlock.user_id == id,
UserBlock.target_id == v.id
)
)
).first()
target.is_blocking = block and block.user_id == v.id
target.is_blocked = block and block.target_id == v.id
return target
def add_vote_props(target:Union[Submission, Comment], v:Optional[User], vote_cls):
if hasattr(target, 'voted'): return target
vt = g.db.query(vote_cls.vote_type).filter_by(user_id=v.id)
if vote_cls == Vote:
vt = vt.filter_by(submission_id=target.id)
elif vote_cls == CommentVote:
vt = vt.filter_by(comment_id=target.id)
else:
vt = None
if vt: vt = vt.one_or_none()
target.voted = vt.vote_type if vt else 0
return target
def add_vote_and_block_props(target:Union[Submission, Comment], v:Optional[User], vote_cls):
if not v: return target
target = add_block_props(target, v)
return add_vote_props(target, v, vote_cls)
def get_comments(cids:Iterable[int], v:Optional[User]=None) -> List[Comment]:
if not cids: return []
if v:
output = get_comments_v_properties(v, True, None, Comment.id.in_(cids))[1]
else:
output = g.db.query(Comment).join(Comment.author).filter(User.shadowbanned == None, Comment.id.in_(cids)).all()
return sorted(output, key=lambda x: cids.index(x.id))
def get_comments_v_properties(v:User, include_shadowbanned=True, should_keep_func:Optional[Callable[[Comment], bool]]=None, *criterion):
if not v:
raise TypeError("A user is required")
votes = g.db.query(CommentVote.vote_type, CommentVote.comment_id).filter_by(user_id=v.id).subquery()
blocking = v.blocking.subquery()
blocked = v.blocked.subquery()
comments = g.db.query(
Comment,
votes.c.vote_type,
blocking.c.target_id,
blocked.c.target_id,
)
if not include_shadowbanned and not v.can_see_shadowbanned:
comments = comments.join(Comment.author).filter(User.shadowbanned == None)
comments = comments.filter(*criterion)
comments = comments.join(
votes,
votes.c.comment_id == Comment.id,
isouter=True
).join(
blocking,
blocking.c.target_id == Comment.author_id,
isouter=True
).join(
blocked,
blocked.c.user_id == Comment.author_id,
isouter=True
)
queried = comments.all()
output = []
dump = []
for c in queried:
comment = c[0]
comment.voted = c[1] or 0
comment.is_blocking = c[2] or 0
comment.is_blocked = c[3] or 0
if not should_keep_func or should_keep_func(c[0]): output.append(comment)
else: dump.append(comment)
return (comments, output)
def get_sub_by_name(sub:str, v:Optional[User]=None, graceful=False) -> Optional[Sub]:
if not sub:
if graceful: return None
else: abort(404)
sub = sub.replace('/h/', '').strip().lower()
if not sub:
if graceful: return None
else: abort(404)
sub = g.db.get(Sub, sub)
if not sub:
if graceful: return None
else: abort(404)
return sub