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Merge pull request #541 from pierotofy/cost

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Dynamic limiter costs
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Piero Toffanin 2023-11-15 14:59:10 -05:00 committed by GitHub
commit 80b510b1ad
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1 changed files with 22 additions and 8 deletions
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30
libretranslate/app.py
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@ -205,6 +205,8 @@ def create_app(args):
args.req_limit, args.hourly_req_limit, args.daily_req_limit, api_keys_db
),
storage_uri=args.req_limit_storage,
default_limits_deduct_when=lambda req: True, # Force cost to be called after the request
default_limits_cost=lambda: getattr(request, 'req_cost', 1)
)
else:
from .no_limiter import Limiter
@ -550,17 +552,21 @@ def create_app(args):
description=_("Invalid request: request (%(size)s) exceeds text limit (%(limit)s)", size=batch_size, limit=args.batch_limit),
)
if args.char_limit != -1:
chars = sum([len(text) for text in q]) if batch else len(q)
src_texts = q if batch else [q]
if args.char_limit < chars:
abort(
400,
description=_("Invalid request: request (%(size)s) exceeds text limit (%(limit)s)", size=chars, limit=args.char_limit),
)
if args.char_limit != -1:
for text in src_texts:
if len(text) > args.char_limit:
abort(
400,
description=_("Invalid request: request (%(size)s) exceeds text limit (%(limit)s)", size=len(text), limit=args.char_limit),
)
if batch:
request.req_cost = max(1, len(q))
if source_lang == "auto":
candidate_langs = detect_languages(q if batch else [q])
candidate_langs = detect_languages(src_texts)
detected_src_lang = candidate_langs[0]
else:
detected_src_lang = {"confidence": 100.0, "language": source_lang}
@ -755,6 +761,14 @@ def create_app(args):
file.save(filepath)
# Not an exact science: take the number of bytes and divide by
# the character limit. Assuming a plain text file, this will
# set the cost of the request to N = bytes / char_limit, which is
# roughly equivalent to a batch process of N batches assuming
# each batch uses all available limits
if args.char_limit != -1:
request.req_cost = max(1, int(os.path.getsize(filepath) / args.char_limit))
translated_file_path = argostranslatefiles.translate_file(src_lang.get_translation(tgt_lang), filepath)
translated_filename = os.path.basename(translated_file_path)