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Fix cache errors from files with same length/murmur2 fingerprint

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comp500 2023-06-23 19:00:35 +01:00
parent d018d7e780
commit dd5520e471
1 changed files with 11 additions and 8 deletions
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19
core/download.go
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@ -404,15 +404,18 @@ func (c *CacheIndex) rehashFile(cacheHash string, hashFormat string) (string, er
} }
func (c *CacheIndex) NewHandleFromHashes(hashes map[string]string) (*CacheIndexHandle, bool) { func (c *CacheIndex) NewHandleFromHashes(hashes map[string]string) (*CacheIndexHandle, bool) {
for hashFormat, hash := range hashes { // Ensure hashes contains the cache hash format
handle := c.GetHandleFromHash(hashFormat, hash) if _, ok := hashes[cacheHashFormat]; !ok {
if handle != nil { panic("NewHandleFromHashes didn't get any value for " + cacheHashFormat)
// Add hashes to handle }
for hashFormat2, hash2 := range hashes { // Only compare with the cache hash format - other hashes might be insecure or likely to collide
handle.Hashes[hashFormat2] = strings.ToLower(hash2) handle := c.GetHandleFromHash(cacheHashFormat, hashes[cacheHashFormat])
} if handle != nil {
return handle, true // Add hashes to handle
for hashFormat2, hash2 := range hashes {
handle.Hashes[hashFormat2] = strings.ToLower(hash2)
} }
return handle, true
} }
i := c.nextHashIdx i := c.nextHashIdx
c.nextHashIdx += 1 c.nextHashIdx += 1