List of .png files in html and js - javascript

I am trying to create a something in my project, that display the images that ends with .png
Currently, I have this part of code :
<h2>Files list :</h2>
<p id="list"></p>
<script>
import 'path';
const EXTENSION = '.png';
const targetFiles = files.filter(file => {
return path.extname(file).toLowerCase() === EXTENSION;
});
if(targetFiles == "") {
document.getElementById("list").innerHTML = "No images found.";
} else {
document.getElementById("list").innerHTML = targetFiles;
}
</script>
The issue here is that I can't find an alternative solution for the path package that is working for web and can help me with this.

You cannot access any file system through a web application, client or server, no matter how "localy on a pc" it will be.
To do the kind of thing you're describing, you need a second application to handle the file system lookup and/or transfer (presumably, you also want to see the images, right?). And then the two applications can talk over AJAX calls or web-sockets to request the look ups and download the needed files.

step 1 for HTML
img src= for pic
step 2
use the internet to look for picture or go to gallery to find a picture go to your file
step3
use the img src for the picture
example
img src =a

Related

ajax call not working when deployed in live domain

My ajax call is working on localhost but not when i upload the files in domain. Using ajax I am searching all jpg/png files in a folder called 'images' and showing them in my webpage. The code is -
<script>
//Use ajax to load all images (jpe?g|png|gif) from a folder to a page called Gallery
//images folder should be in the same folder as the file
var folder = "../images/";
$.ajax({
url : folder,
success: function (data) {
$(data).find("a").attr("href", function (i, val) {
if( val.match(/\.(jpe?g|png|gif)$/) ) {
// create 'img' element using JS and dynamically add image source and class
var imgSrc = document.createElement('img');
imgSrc.src= folder + val;
imgSrc.className = 'imageThumbnails';
$("#spanImage").append(imgSrc);
}
});
}
});
</script>
please change
var folder = "../images/";
to
var folder = "images/";
hope this helps.. cheers
Ok, so as you saw when you tried accessing the folder directly in your browser, your web server does not allow this, which is common on web servers. Very few people actually want visitors to be able to see a list of all files in a folder, for security reasons.
The quick and dirty way to do this would be to allow listing files in that folder, through a htaccess file, using Options +Indexes, but I strongly recommend you do not do that
Instead, I would suggest you place a file inside your images folder called index.php and have that file build you a list of files placed alongside it, in the images folder. That way you have control over which files you show and which ones you don't. The index.php file can return a simple text output, one file name per line or something like that. Then your ajax call should work as it used to.
Hope this helps!

Download zip using jszip in Sharepoint

Hi I am looking for solutions insanely for almost 2 days.I have sharepoint library where multiple word docs uploaded.Using javascript JSZip I like to pass sharepoint file urls into it.Is this possible ?
I am getting each file server relative URL by ecmascript.Now I would like to do something like this:
function create_zip() {
debugger
var zip = new JSZip();
zip.add("http://myspsite/shareddoc/a/test.docx", "\n"); //this is hardcoded for testing??here I have file url
//zip.add("hello2.txt", "Hello Second World\n");
content = zip.generate();
location.href = "data:application/zip;base64," + content;
}
Any pointers or how I proceed from here?
Thanxs.
It´s insanely but interesting. Could works. Creating a button and calling the library and the script, I´m sure of that.
or, try this: http://techtrainingnotes.blogspot.com.ar/2010/05/sharepoint-2010-windows-explorer-view.html
This is more simple.

node-webkit using window.open() to download a file open another window

I'm currently porting a nodejs / angular webapp to Windows using nodewebkit. Everything has been working pretty well for now but I'm facing a litle problem when I want the user to download a file.
In order to start the download with the save file Dialog, I use a simple window.open(url) where url can be a link to any kind of files. This line actually do it's job and pop the window dialog for saving a file, but at the same time, a blank node-webkit page appears.
I've been trying to mess around with node-webkit for a while without managing to remove this blank page.
As anyone experienced the same kind of behavior ?
I'll be interested in any lead, I'm not into the js stuff for long so I may have missed something obviouvs.
Have a nice wathever time of the day it is where you live !
a more better solution is found here
Step 1 In your html file, add a Input tag block like below:
<input id="export_file" type="file" nwsaveas style="display:none" nwworkingdir=""/>
Step 2 Add a new function in your javascript file like below:
function saveFile(name,data) {
var chooser = document.querySelector(name);
chooser.addEventListener("change", function(evt) {
console.log(this.value); // get your file name
var fs = require('fs');// save it now
fs.writeFile(this.value, data, function(err) {
if(err) {
alert("error"+err);
}
});
}, false);
chooser.click();
}
Step 3 Save your file where ever you like by using saveFile(name,data) function like below:
...
_exportCSV="you data to save";
saveFile('#export_file',_exportCSV);
...
As questioner said to be working:
location.href = url
Is the correct usage.

Issues in developing web scraper

I want to develop a platform where users can enter a URL and then my website will open the webpage in an iframe. Now the user can modify his website by simply right clicking and I will provide him options like "remove this element", "copy this element". I am almost through. Many of the websites are opening perfectly in iframe but for a few websites some errors have shown up. I could not identify the reason so asking for your help.
I have solved other issues like XSS problem.
Here is the procedure I have followed :-
Used JavaScript and sent the request to my Java server which makes connection to the URL specified by the user and fetches the HTML and then use Jsoup HTML parser to convert relative URLs into absolute URLs and then save the HTML to my disk in Java. And then I render the saved HTML into my iframe.
Is somewhere wrong ?
A few websites are working perfectly but a few are not.
For example:-
When I tried to open http://www.snapdeal.com it gave me the
Uncaught TypeError: Cannot read property 'paddingTop' of undefined
error. I don't understand why this is happening..
Update
I really wonder how this is implemented? # http://www.proxywebsites.in/browse.php?u=Oi8vd3d3LnNuYXBkZWFsLmNvbQ%3D%3D&b=13&f=norefer
2 issues, pick any you like:
your server side proxy code contains bugs
plenty of sites have either explicit frame-break code or at least expect to be top level frame.
You can try one more thing. In your proxy script you are saving your webpage on your disk and then loading into iframe. I think instead of loading the page you saved on disk in iframe try to open that page in browser. All those sites that restirct their page to be loaded into iframe will now get opened without any error.
Try this I think it an work
My Proxy Server side code :-
DateFormat df = new SimpleDateFormat("ddMMyyyyHHmmss");
String dirName = df.format(new Date());
String dirPath = "C:/apache-tomcat-7.0.23/webapps/offlineWeb/" + dirName;
String serverName = "http://localhost:8080/offlineWeb/" + dirName;
boolean directoryCreated = new File(dirPath).mkdir();
if (!directoryCreated)
log.error("Error in creating directory");
String html = Jsoup.connect(url.toString()).get().html();
doc = Jsoup.parse(html, url);
links = doc.select("link");
scripts = doc.select("script");
images = doc.select("img");
for (Element element : links) {
String linkHref = element.attr("abs:href");
if (linkHref != "") {
element.attr("href", linkHref);
}
}
for (Element element : scripts) {
String scriptSrc = element.attr("abs:src");
if (scriptSrc != "") {
element.attr("src", scriptSrc);
}
}
for (Element element : images) {
String imgSrc = element.attr("abs:src");
if (imgSrc != "") {
element.attr("src", imgSrc);
log.info(imgSrc);
}
}
And Now i am just returning the path where i saved my html file
That's it about my server code

random images from a folder

I am trying to rewrite my code below to search a folder for all the images (they will be numbered but there maybe gaps, ie not 1.jpg,2.jpg,3.jpg but instead 1.jpg,15.jpg,60.jpg for this reason i would like to search the folder, put all the images into an array and then pick one randomly each time its looped.
Any help would be greatly appreciated.
Firstly i am currently specifying image total above the main script below:
imgWidth = 160,
imgHeight = 95,
imgTotal = 22,
total = 0,
tiles;
//create the HTML for the tiles and append that to the bg element
function makeTiles(count){
var html = '', imgNum;
while(count--){
imgNum = Math.floor(Math.random()*imgTotal + 1);
html += "<div class='tile' style='background:url(public/images/portfolio/all/"+imgNum+".jpg) 0 0 no-repeat;' ><img style='opacity:0; filter:alpha(opacity=0);' src='public/images/portfolio/all/"+imgNum+"-c.jpg' alt='' /></div>\r";
}
$bg.append(html);
}
You'll need to create a list of available images with something else than javascript, since it has no filesystem access, even though in the end, you are accessing the images via their url.
Workaround: enable some directory listing for the images, then access this page via javascript, parse the image files and construct an array out of them; but frankly, there are shorter and more robust ways to accomplish this ...
pseudocode ..
$ ls -1 *jpg > imagesfilelist.txt
$ cp imagefilelist.txt /some/publicly/accessible/folder
js/jquery ..
$.get("/some/publicly/accessible/folder/imagefilelist.txt", function(data){
alert("My image files: " + data);
});
...
javascript can not access local folders. point.
I repeat: there is no way you can "search folder" to get "array of images" in JS. You could do that part (server only!) in PHP or such server-side language and return results via AJAX.
To do what you want you need to know what the images are called. JavaScript cannot access folder directly as commented above. You would need to use a server side script to provide an array of the images for the JS to pick at random to do this.
Javascript will not be able to browse folders. What you need to do is to create an array of available images and then select a random one. You could do this using any server side technology (php, rails, java, .net ...).
The way you're trying to do it is a wrong one.But iwth a bit of tricks it could work though, but it's very wrong way to do this kind of things.
You can generate file list with php and feed it to your script. You can even create php script which will generate your script already populated with needed data but it's not the best to do this too.
So, the best ways are:
- create html with list of filenames/images(visible or invisible) by php, then manipulate it by javascript;
- create html and javascript wich will do AJAX query to php script which will return filename list(formated as JSON if you wish).
Why not upload your images to a free hosting site (like Flickr) grab the feed from your image group and select the random image from there?

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