Use SafeJoin in the uploadHandler #821
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Codecov ReportPatch coverage:
Additional details and impacted files@@ Coverage Diff @@
## main #821 +/- ##
==========================================
+ Coverage 16.85% 17.76% +0.91%
==========================================
Files 53 53
Lines 4082 4103 +21
==========================================
+ Hits 688 729 +41
+ Misses 3294 3270 -24
- Partials 100 104 +4
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rhpco
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Sep 5, 2023
rhaidiz
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cmaglie
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| // SafeJoin performs a filepath.Join of 'parent' and 'subdir' but returns an error | ||
| // if the resulting path points outside of 'parent'. | ||
| func SafeJoin(parent, subdir string) (string, error) { | ||
| res := filepath.Join(parent, subdir) | ||
| if !strings.HasSuffix(parent, string(os.PathSeparator)) { | ||
| parent += string(os.PathSeparator) | ||
| } | ||
| if !strings.HasPrefix(res, parent) { | ||
| return res, fmt.Errorf("unsafe path join: '%s' with '%s'", parent, subdir) | ||
| } | ||
| return res, nil | ||
| } |
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Maybe this could be a good candidate for go-paths-helper
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Fixes: https://arduino.atlassian.net/browse/PNX-1543
Fixes: https://arduino.atlassian.net/browse/PNX-4130 (e523731)