Reference documentation and code samples for the Cloud Storage Client class HashValidatingStream.
A Guzzle stream decorator that computes CRC32C and MD5 hashes on the fly and validates them when the end of the stream is reached.
Namespace
Google \ Cloud \ StorageMethods
__construct
Parameters
Name
Description
stream
Psr\Http\Message\StreamInterface
The underlying stream to wrap.
options
array
Configuration options.
↳ expectedCrc32c
string
Base64-encoded expected CRC32C checksum.
↳ expectedMd5
string
Base64-encoded expected MD5 checksum.
isSeekable
Validating streams are not seekable since hash calculations are done on-the-fly.
Returns
Type
Description
bool
seek
Seek operations are not supported on validating streams.
Parameters
Name
Description
offset
int
whence
int
read
Read from the stream and update hash calculations.
Parameter
Name
Description
length
int
Returns
Type
Description
string
getContents
Get the entire remaining contents of the stream and validate.
Returns
Type
Description
string
