How to read a single file inside a zip archive

Try using the zip:// wrapper: $handle = fopen(‘zip://test.zip#test.txt’, ‘r’); $result=””; while (!feof($handle)) { $result .= fread($handle, 8192); } fclose($handle); echo $result; You can use file_get_contents too: $result = file_get_contents(‘zip://test.zip#test.txt’); echo $result;

How to download and unzip a zip file in memory in NodeJs?

You need a library that can handle buffers. The latest version of adm-zip will do: npm install adm-zip My solution uses the http.get method, since it returns Buffer chunks. Code: var file_url=”http://notepad-plus-plus.org/repository/7.x/7.6/npp.7.6.bin.x64.zip”; var AdmZip = require(‘adm-zip’); var http = require(‘http’); http.get(file_url, function(res) { var data = [], dataLen = 0; res.on(‘data’, function(chunk) { data.push(chunk); dataLen … Read more

Compression formats with good support for random access within archives? [closed]

Take a look at dictzip. It is compatible with gzip and allows coarse random access. An excerpt from its man page: dictzip compresses files using the gzip(1) algorithm (LZ77) in a manner which is completely compatible with the gzip file format. An extension to the gzip file format (Extra Field, described in 2.3.1.1 of RFC … Read more

Python: Inflate and Deflate implementations

You can still use the zlib module to inflate/deflate data. The gzip module uses it internally, but adds a file-header to make it into a gzip-file. Looking at the gzip.py file, something like this could work: import zlib def deflate(data, compresslevel=9): compress = zlib.compressobj( compresslevel, # level: 0-9 zlib.DEFLATED, # method: must be DEFLATED -zlib.MAX_WBITS, … Read more

Deflate compression browser compatibility and advantages over GZIP

UPDATE: Browsers have been dropping support for raw deflate. zOompf has completed some very thorough research on this very topic here. Unfortunately, it appears that raw deflate is NOT safe to use. Check http://www.vervestudios.co/projects/compression-tests/results for more results. Here are the browsers that have been tested: /* Browser DEFLATE ZLIB */ XP Internet Explorer 6 PASS … Read more

How do I ungzip (decompress) a NodeJS request’s module gzip response body?

I couldn’t get request to work either, so ended up using http instead. var http = require(“http”), zlib = require(“zlib”); function getGzipped(url, callback) { // buffer to store the streamed decompression var buffer = []; http.get(url, function(res) { // pipe the response into the gunzip to decompress var gunzip = zlib.createGunzip(); res.pipe(gunzip); gunzip.on(‘data’, function(data) { … Read more

Decompress gzip and zlib string in javascript

Pako is a full and modern Zlib port. Here is a very simple example and you can work from there. Get pako.js and you can decompress byteArray like so: <html> <head> <title>Gunzipping binary gzipped string</title> <script type=”text/javascript” src=”https://stackoverflow.com/questions/14620769/pako.js”></script> <script type=”text/javascript”> // Get datastream as Array, for example: var charData = [31,139,8,0,0,0,0,0,0,3,5,193,219,13,0,16,16,4,192,86,214,151,102,52,33,110,35,66,108,226,60,218,55,147,164,238,24,173,19,143,241,18,85,27,58,203,57,46,29,25,198,34,163,193,247,106,179,134,15,50,167,173,148,48,0,0,0]; // Turn number array … Read more

no module named zlib

Sounds like you need to install the devel package for zlib, probably want to do something like # ubuntu 12,14,16,18,20.04+ sudo apt-get install zlib1g-dev Instead of using python-brew you might want to consider just compiling by hand, it’s not very hard. Just download the source, and configure, make, make install. You’ll want to at least … Read more