@cap-js/hana corrupts the large zip file ( zip files on read gives Corrupted zip or invalid signature)

[nishnp]

I am working on a multitenant CAP application the dependencies are as below

pr	https://github.com/<your/repo>
@cap-js/asyncapi	1.0.2
@cap-js/audit-logging	0.8.0
@cap-js/cds-types	0.2.0
@cap-js/hana	1.1.1
@cap-js/openapi	1.0.5
@cap-js/telemetry	0.2.3
@sap/cds	8.1.1
@sap/cds-common-conten	2.1.0
@sap/cds-compiler	5.1.2
@sap/cds-dk	8.1.2
@sap/cds-dk (global)	7.9.4
@sap/cds-fiori	1.2.4
@sap/cds-foss	5.0.1
@sap/cds-indexer	1.0.14
@sap/cds-mtxs	2.0.6
@sap/cds-odata-v2-adap	1.9.21
@sap/cds-shim	0.6.6
@sap/eslint-plugin-cds	3.0.4
Node.js	v20.15.0
home	/Users/payann/Documents/ace/ace/node_modules/@sap/cds

in the file @cap-js/hana/lib/drivers/hana-client.js at function streamBlob, because the binary buffer is assigned to 65536 ( 1 << 16). if the file is large, then the first 65536 bytes are read and then the next read overwrites the first few bytes which corrupts the file signature.

for now i was able to fix with a patch something like this -async function* streamBlob(rs, rowIndex = -1, columnIndex, binaryBuffer = Buffer.allocUnsafe(1 << 16)) { +async function* streamBlob(rs, rowIndex = -1, columnIndex, binaryBuffer = Buffer.allocUnsafe(1 << 25)) {