qishibo/AnotherRedisDesktopManager · warning

Zlib Deflate Parse Failed!

Error message

Zlib Deflate Parse Failed!

What it means

Placeholder string shown in the deflate viewer when decompression fails. formatStr calls $util.zippedToString(content, 'deflate') → zlib.inflateSync, which expects a zlib-wrapped deflate stream (78 xx header + Adler-32 trailer). Any throw or empty output makes formatStr false, and newContent displays 'Zlib Deflate Parse Failed!' meaning the bytes are not a valid zlib-wrapped deflate stream.

Source

Thrown at src/components/viewers/ViewerDeflate.vue:26

const zlib = require('zlib');

export default {
  components: { JsonEditor },
  props: ['content'],
  computed: {
    newContent() {
      const { formatStr } = this;

      if (typeof formatStr === 'string') {
        if (this.$util.isJson(formatStr)) {
          return JSONbig.parse(formatStr);
        }

        return formatStr;
      }

      return 'Zlib Deflate Parse Failed!';
    },
    formatStr() {
      return this.$util.zippedToString(this.content, 'deflate');
    },
  },
  methods: {
    getContent() {
      const content = this.$refs.editor.getRawContent(true);
      return zlib.deflateSync(content);
    },
    copyContent() {
      return this.formatStr;
    },
  },
};
</script>

View on GitHub (pinned to c149855106)

Solutions

  1. Check the first bytes: zlib-wrapped deflate starts with 78 01/9c/da; otherwise switch to the DeflateRaw viewer
  2. Verify the stream is complete (Adler-32 trailer present) in the hex view
  3. Strip any outer encoding (hex/base64) before expecting deflate bytes
  4. Fix the producer to emit zlib.deflateSync output if you standardize on this viewer

Example fix

// before
return 'Zlib Deflate Parse Failed!';

// after - propagate the zlib reason
try {
  return zlib.inflateSync(buf).toString();
} catch (e) {
  return `Zlib Deflate Parse Failed: ${e.message}`;
}
Defensive patterns

Strategy: type-guard

Validate before calling

const ok = typeof this.$util.zippedToString(buf, 'deflate') === 'string';
if (!ok) { /* fall back to deflateRaw / hex viewer */ }

Type guard

const isZlibDeflate = (buf) => typeof $util.zippedToString(buf, 'deflate') === 'string';

Prevention

When it happens

Trigger: Viewing a key labeled deflate whose bytes are actually raw deflate (no zlib wrapper) — inflateSync throws 'incorrect header check'; truncated stream → 'unexpected end of file'; stream produced by a non-zlib container (e.g. HTTP chunk framing still attached); empty decompressed output also maps to false.

Common situations: Writers using raw deflate (Z_SYNC_FLUSH websocket frames, 'deflate-raw') versus zlib-wrapped deflate confusion; content that is deflate-compressed then hex/base64 encoded with the outer layer not stripped; corrupted values from partial writes.

Related errors


AI-assisted analysis of qishibo/AnotherRedisDesktopManager@c149855106 (2026-08-22). Data as JSON: /api/errors/a81c6886755f58e0. Report an issue: GitHub.