DrI-T/README.md

## README.md

      
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              README.md
            
          
    discovery of IPFS gateway peerids ...

*(raw)*page at : https://bl.ocks.org/DrI-T/raw/6dafc021c9d4041fa2857190468cf09f/

  
## bg-dif.jpg

      
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              bg-dif.jpg
            
          
## favicon.ico

      
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              favicon.ico
            
          
            View raw
        
    
## gateway.png

      
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              gateway.png
            
          
## gist.png

      
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              gist.png
            
          
## index.html
<!DOCTYPE html><meta charset="utf8">
<style>
body {
background-image: URL(bg-dif.jpg); background-size: 100% 100%;
}
.container {
 max-width: 720px; min-height: 40vh;
 background-color: white;
 box-shadow: 5px 5px 15px 2px rgba(4,3,5,0.9);
 margin: auto;
 margin-top: 10vw;
 padding: 1rem;
}
</style>
<title> IPFS gateways discovery </title>
<link rel=icon href=gist.png type=image/png>
<div class=container>
<h2>IPFS gateways:</h2>
<div id=peers><img src=spinner.gif><div>
</div>
<script>
 // const api_url = 'http://127.0.0.1:5001/api/v0/';
 const api_url = 'https://ipfs.blockringtm.ml/api/v0/';
 const qmcheck = 'Qmaisz6NMhDB51cCvNWa1GMS7LU1pAxdF4Ld6Ft9kZEP2a';

 var expires = new Date(); expires.setTime(expires.getTime() - 59);
 let cookie = '_ga=deleted; path=/; SameSite=None; Secure; expires='+ expires.toGMTString();
 //document.cookie = cookie;
 console.debug('cookie:',cookie)


 let promized_peers = find_provs(qmcheck).
 then(display_peers).
 catch( _ => {
  console.error(_);
   let d = document.getElementById('peers');
   d.innerHTML = 'click the following link to see the <i>raw</i>page <a href="https://bl.ocks.org/DrI-T/raw/6dafc021c9d4041fa2857190468cf09f/">gist:6dafc021c9d4041fa2857190468cf09f/</a>';
 });


 function find_provs(key) {
   let url = api_url + 'dht/findprovs?arg='+key+'&verbose=true&num-providers=150&timeout=293s'
   let provs = [];
   let peerids = [];
   let headers = new Headers();
   // headers.set('Authorization', 'Basic c286YW5vbnltb3Vz');
   // headers.set('Cookie','_ga=delete');
   return fetch(url,{ method:'POST', credentials: 'include', headers: headers }).
      then( resp => resp.body.getReader() ).
      then( reader => {
        let read;
        var buf = ''
        return reader.read().
          then(read = ({ value, done }) => {
            if (done) return peerids;
            console.debug('value.buffer:',value.buffer)
            if (buf != '') { console.debug('buf:',buf) }
            buf += String.fromCharCode.apply(String, value);
            // spliting the NDJSON
            let lines = buf.replace(/(\n|\r)+$/, '').split("\n")
            buf = (lines[lines.length-1].match(/}$/)) ? '' : lines.pop();
            let objs = lines.map(JSON.parse)
            // console.log('objs:',objs)
            provs.push(...objs.filter( (o) => o.Type == 4 ));
            if (provs.length > 0) {
              peerids = provs.map((o) => o.Responses[0].ID );
              display_peers(peerids);
            } else {
              return Promise.reject(String.fromCharCode.apply(String, value));
            }
            return reader.read().then(read).catch(console.warn); // recursion !

          });
       });
 }

 function display_peers(peers) {
   let d = document.getElementById('peers');
   let buf = '<ol>';
   if (typeof(peers) == 'undefined') { return void(0); }
   for (p of peers) {
      buf += `<li><a href=https://duckduckgo.com/?q=%2B%22${p}%22>${p}</a> <a href="http://127.0.0.1:8080/ipns/${p}">🔗</a>`;
   }
   buf += '</ol>';
   d.innerHTML = buf;
 }
</script>

## preview.png

      
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              preview.png
            
          
## spinner.gif

      
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              spinner.gif
            
          
## thumbnail.png

      
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              thumbnail.png
	<!DOCTYPE html><meta charset="utf8">
	<style>
	body {
	background-image: URL(bg-dif.jpg); background-size: 100% 100%;
	}
	.container {
	max-width: 720px; min-height: 40vh;
	background-color: white;
	box-shadow: 5px 5px 15px 2px rgba(4,3,5,0.9);
	margin: auto;
	margin-top: 10vw;
	padding: 1rem;
	}
	</style>
	<title> IPFS gateways discovery </title>
	<link rel=icon href=gist.png type=image/png>
	<div class=container>
	<h2>IPFS gateways:</h2>
	<div id=peers><img src=spinner.gif><div>
	</div>
	<script>
	// const api_url = 'http://127.0.0.1:5001/api/v0/';
	const api_url = 'https://ipfs.blockringtm.ml/api/v0/';
	const qmcheck = 'Qmaisz6NMhDB51cCvNWa1GMS7LU1pAxdF4Ld6Ft9kZEP2a';

	var expires = new Date(); expires.setTime(expires.getTime() - 59);
	let cookie = '_ga=deleted; path=/; SameSite=None; Secure; expires='+ expires.toGMTString();
	//document.cookie = cookie;
	console.debug('cookie:',cookie)


	let promized_peers = find_provs(qmcheck).
	then(display_peers).
	catch( _ => {
	console.error(_);
	let d = document.getElementById('peers');
	d.innerHTML = 'click the following link to see the <i>raw</i>page <a href="https://bl.ocks.org/DrI-T/raw/6dafc021c9d4041fa2857190468cf09f/">gist:6dafc021c9d4041fa2857190468cf09f/</a>';
	});


	function find_provs(key) {
	let url = api_url + 'dht/findprovs?arg='+key+'&verbose=true&num-providers=150&timeout=293s'
	let provs = [];
	let peerids = [];
	let headers = new Headers();
	// headers.set('Authorization', 'Basic c286YW5vbnltb3Vz');
	// headers.set('Cookie','_ga=delete');
	return fetch(url,{ method:'POST', credentials: 'include', headers: headers }).
	then( resp => resp.body.getReader() ).
	then( reader => {
	let read;
	var buf = ''
	return reader.read().
	then(read = ({ value, done }) => {
	if (done) return peerids;
	console.debug('value.buffer:',value.buffer)
	if (buf != '') { console.debug('buf:',buf) }
	buf += String.fromCharCode.apply(String, value);
	// spliting the NDJSON
	let lines = buf.replace(/(\n\|\r)+$/, '').split("\n")
	buf = (lines[lines.length-1].match(/}$/)) ? '' : lines.pop();
	let objs = lines.map(JSON.parse)
	// console.log('objs:',objs)
	provs.push(...objs.filter( (o) => o.Type == 4 ));
	if (provs.length > 0) {
	peerids = provs.map((o) => o.Responses[0].ID );
	display_peers(peerids);
	} else {
	return Promise.reject(String.fromCharCode.apply(String, value));
	}
	return reader.read().then(read).catch(console.warn); // recursion !

	});
	});
	}

	function display_peers(peers) {
	let d = document.getElementById('peers');
	let buf = '<ol>';
	if (typeof(peers) == 'undefined') { return void(0); }
	for (p of peers) {
	buf += `<li><a href=https://duckduckgo.com/?q=%2B%22${p}%22>${p}</a> <a href="http://127.0.0.1:8080/ipns/${p}">🔗</a>`;
	}
	buf += '</ol>';
	d.innerHTML = buf;
	}
	</script>