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Prefer exact match without parameters to one with extra parameters #36

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Prefer exact match without parameters to one with extra parameters #36

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75a473c
Increase preference of match w/out parameters.
suola Oct 14, 2018
3c66a84
Merge branch 'master' into prefer_exact_match_over_one_with_extra_par…
suola Oct 28, 2021
1dcfb2c
Take q into account always.
suola Oct 28, 2021
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16 changes: 10 additions & 6 deletions mimeparse.py
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Original file line number Diff line number Diff line change
Expand Up @@ -97,19 +97,23 @@ def quality_and_fitness_parsed(mime_type, parsed_ranges):
# if they do, assess the "fitness" of this mime_type
if type_match and subtype_match:

# 100 points if the type matches w/o a wildcard
fitness = type == target_type and 100 or 0
# 1000 points if the type matches w/o a wildcard
fitness = type == target_type and 1000 or 0

# 10 points if the subtype matches w/o a wildcard
fitness += subtype == target_subtype and 10 or 0
# 100 points if the subtype matches w/o a wildcard
fitness += subtype == target_subtype and 100 or 0

# 1 bonus point for each matching param besides "q"
# 10 bonus points for each matching param besides "q"
param_matches = sum([
1 for (key, value) in target_params.items()
10 for (key, value) in target_params.items()
if key != 'q' and key in params and value == params[key]
])
fitness += param_matches

# 1 bonus point if neither has any parameters
if (set(target_params) | set(params)) - {'q'} == set():
fitness += 1

# finally, add the target's "q" param (between 0 and 1)
fitness += float(target_params.get('q', 1))
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@CaselIT CaselIT Oct 26, 2021

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as currently implemented the q has basically no say

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@suola suola Oct 28, 2021

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That's true, I fixed this + added a test case for that


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8 changes: 8 additions & 0 deletions testdata.json
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Original file line number Diff line number Diff line change
Expand Up @@ -186,6 +186,14 @@
"text/html",
"match should use highest order of supported when there is a tie"
],
[
[
["application/json", "application/json;boundary=NL"],
"application/json"
],
"application/json",
"exact match without parameters should be preferred over similar one with extra parameters"
],
[
[
["application/json;q=1.0", "text/html;q=0.9", "text/plain;q=0.1"],
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