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fix server-side IndexError for 4-arg open() of old clients, fixes #3192

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borg 1.1(.0) server didn't support the 4 argument open() calls made
by < 1.0.7 clients.
This commit is contained in:
Thomas Waldmann 2017-10-20 16:47:32 +02:00
parent 38dd1f11ac
commit dbcc870489
1 changed files with 9 additions and 1 deletions
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8
src/borg/remote.py
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@ -179,7 +179,15 @@ def __init__(self, restrict_to_paths, restrict_to_repositories, append_only, sto
def positional_to_named(self, method, argv): def positional_to_named(self, method, argv):
"""Translate from positional protocol to named protocol.""" """Translate from positional protocol to named protocol."""
try:
return {name: argv[pos] for pos, name in enumerate(compatMap[method])} return {name: argv[pos] for pos, name in enumerate(compatMap[method])}
except IndexError:
if method == 'open' and len(argv) == 4:
# borg clients < 1.0.7 use open() with 4 args
mapping = compatMap[method][:4]
else:
raise
return {name: argv[pos] for pos, name in enumerate(mapping)}
def filter_args(self, f, kwargs): def filter_args(self, f, kwargs):
"""Remove unknown named parameters from call, because client did (implicitly) say it's ok.""" """Remove unknown named parameters from call, because client did (implicitly) say it's ok."""