nodejs app - download file from sharepoint with NTLM AUTH - node.js

Question

I must confess I'm stuck. I need a nodejs app to download a file from a SharePoint library. Simple, huh? No. Not the simple OOTB SharePoint. The only-ssl allowed, with specific mandatory header added and surely only domain-based NTLM authentication method.
I've tried httpntlm (https://www.npmjs.org/package/httpntlm) that seemed to just might work in advance, but no. The SP responses with something went wrong message.
I've tried node-sharepoint, but it doesn't support NTLM yet. The app gets ETIMEDOUT response.
Any ideas, please welcome.

Answer 1

I am able to download the file using httpntlm module.you need to change the few lines of code.Replace the waterfall logic with below code in httpntlm.js.
async.waterfall([
function ($){
var type1msg = ntlm.createType1Message(options);
httpreq.get(options.url, {
headers:{
'Connection' : 'keep-alive',
'Authorization': type1msg
},
agent: keepaliveAgent
}, $);
},
function (res, $){
if(!res.headers['www-authenticate'])
return $(new Error('www-authenticate not found on response of second request'));
var type2msg = ntlm.parseType2Message(res.headers['www-authenticate']);
var type3msg = ntlm.createType3Message(type2msg, options);
if(method!=='download'){
httpreq[method](options.url, {
headers:{
'Connection' : 'Close',
'Authorization': type3msg
},
allowRedirects: false,
agent: keepaliveAgent
}, $);
}else{
//By Dheeraj for file download
httpreq.download(
url,
{
headers:{
'Connection' : 'Close',
'Authorization': type3msg
},
//allowRedirects: false,
agent: keepaliveAgent
},
__dirname + 'your_filename',
function (err, progress){
if (err) return console.log(err);
console.log(progress);
}, function (err, res){
if (err) return console.log(err);
console.log(res);
});
}
}
], callback);
};
['get', 'put', 'post', 'delete', 'head','download'].forEach(function(method){
exports[method] = exports.method.bind(exports, method);
});
and replace download method of httpreq.js(httpntm_module/node_modules/httpreq_module/httpreq.js) You can find it at Line number 79 approx.
exports.download = function (url,options, downloadlocation, progressCallback, callback) {
//var options = {};
options.url = url;
options.method = 'GET';
options.downloadlocation = downloadlocation;
options.allowRedirects = true;
// if only 3 args are provided, so no progressCallback
if(callback === undefined && progressCallback && typeof(progressCallback)==="function")
callback = progressCallback;
else
options.progressCallback = progressCallback;
doRequest(options, callback);
}
Please let me know if you are still getting issues.