End of data reached ... Corrupted zip ?

[mljsgto222]

jszip version: 3.1.5
zip file:
app_mage_v1.0.8_201808201647_mi_release.zip

Cannot unzip my signed apk generated by android studio, but debug apk work fine.

Error: End of data reached (data length = 23619650, asked index = 23640109). Corrupted zip ?
    at Uint8ArrayReader.checkIndex (DataReader.js:26)
    at Uint8ArrayReader.checkOffset (DataReader.js:17)
    at Uint8ArrayReader.webpackJsonp.../../../../jszip/lib/reader/Uint8ArrayReader.js.Uint8ArrayReader.readData (Uint8ArrayReader.js:13)

I found this is because of jsZip got extraFieldsLength is 3 when read the central part of a zip file named resources.ascr and extra field data is 0x000000.Then lib/zipEntry.js:193:readExtraFields out of index.

Is that my apk corrupted?

I changed readExtraFields to fix is error:

    readExtraFields: function(reader) {
        var end = reader.index + this.extraFieldsLength,
            extraFieldId,
            extraFieldLength,
            extraFieldValue;

        if (!this.extraFields) {
            this.extraFields = {};
        }

        while (reader.index + 4 < end) {
            extraFieldId = reader.readInt(2);
            extraFieldLength = reader.readInt(2);
            extraFieldValue = reader.readData(extraFieldLength);

            this.extraFields[extraFieldId] = {
                id: extraFieldId,
                length: extraFieldLength,
                value: extraFieldValue
            };
        }

        reader.setIndex(end);
    }

[dazzlersa]

Hi Mlksgto222

Where did you make those changes? I am having the same error.

[mljsgto222]

#544

[nitinmagdumvista]

error reading zip Error: End of data reached (data length = 4290048, asked index = 4338619). Corrupted zip ?
at NodeBufferReader.checkIndex (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/reader/DataReader.js:26:19)
at NodeBufferReader.checkOffset (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/reader/DataReader.js:17:14)
at NodeBufferReader.readData (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/reader/NodeBufferReader.js:14:10)
at ZipEntries.readBlockEndOfCentral (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/zipEntries.js:59:38)
at ZipEntries.readEndOfCentral (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/zipEntries.js:177:14)
at ZipEntries.load (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip[[?1;2c24m/lib/zipEntries.js:255:14)
at /Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/load.js:48:24
at processTicksAndRejections (node:internal/process/task_queues:96:5)

[trevor-e]

I'm also seeing this error for some zip files created by Ruby's rubyzip gem. The zip files work fine elsewhere.

[mljsgto222]

error reading zip Error: End of data reached (data length = 4290048, asked index = 4338619). Corrupted zip ? at NodeBufferReader.checkIndex (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/reader/DataReader.js:26:19) at NodeBufferReader.checkOffset (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/reader/DataReader.js:17:14) at NodeBufferReader.readData (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/reader/NodeBufferReader.js:14:10) at ZipEntries.readBlockEndOfCentral (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/zipEntries.js:59:38) at ZipEntries.readEndOfCentral (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/zipEntries.js:177:14) at ZipEntries.load (/Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip[[?1;2c24m/lib/zipEntries.js:255:14) at /Users/nitinshamaravmagdum/Documents/Project_List/logos-service/node_modules/jszip/lib/load.js:48:24 at processTicksAndRejections (node:internal/process/task_queues:96:5)

This issue is likely caused by different factors. Could you provide a zip file that can reproduce the problem?

[EmersonCDias]

Hello guys, would you have any updates on that? I'm facing the same problem.

Tks in advance.

[kalenmike]

Same issue here for larger files.